Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2006-2007 Intel Corporation |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 21 | * DEALINGS IN THE SOFTWARE. |
| 22 | * |
| 23 | * Authors: |
| 24 | * Eric Anholt <eric@anholt.net> |
| 25 | */ |
| 26 | |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 27 | #include <linux/module.h> |
| 28 | #include <linux/input.h> |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 29 | #include <linux/i2c.h> |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 30 | #include <linux/kernel.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 31 | #include <linux/slab.h> |
Jesse Barnes | 9cce37f | 2010-08-13 15:11:26 -0700 | [diff] [blame] | 32 | #include <linux/vgaarb.h> |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 33 | #include "drmP.h" |
| 34 | #include "intel_drv.h" |
| 35 | #include "i915_drm.h" |
| 36 | #include "i915_drv.h" |
Jesse Barnes | e5510fa | 2010-07-01 16:48:37 -0700 | [diff] [blame] | 37 | #include "i915_trace.h" |
Dave Airlie | ab2c067 | 2009-12-04 10:55:24 +1000 | [diff] [blame] | 38 | #include "drm_dp_helper.h" |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 39 | |
| 40 | #include "drm_crtc_helper.h" |
| 41 | |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 42 | #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) |
| 43 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 44 | bool intel_pipe_has_type (struct drm_crtc *crtc, int type); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 45 | static void intel_update_watermarks(struct drm_device *dev); |
Daniel Vetter | 3dec009 | 2010-08-20 21:40:52 +0200 | [diff] [blame] | 46 | static void intel_increase_pllclock(struct drm_crtc *crtc); |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 47 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 48 | |
| 49 | typedef struct { |
| 50 | /* given values */ |
| 51 | int n; |
| 52 | int m1, m2; |
| 53 | int p1, p2; |
| 54 | /* derived values */ |
| 55 | int dot; |
| 56 | int vco; |
| 57 | int m; |
| 58 | int p; |
| 59 | } intel_clock_t; |
| 60 | |
| 61 | typedef struct { |
| 62 | int min, max; |
| 63 | } intel_range_t; |
| 64 | |
| 65 | typedef struct { |
| 66 | int dot_limit; |
| 67 | int p2_slow, p2_fast; |
| 68 | } intel_p2_t; |
| 69 | |
| 70 | #define INTEL_P2_NUM 2 |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 71 | typedef struct intel_limit intel_limit_t; |
| 72 | struct intel_limit { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 73 | intel_range_t dot, vco, n, m, m1, m2, p, p1; |
| 74 | intel_p2_t p2; |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 75 | bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, |
| 76 | int, int, intel_clock_t *); |
| 77 | }; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 78 | |
Jesse Barnes | 2377b74 | 2010-07-07 14:06:43 -0700 | [diff] [blame] | 79 | /* FDI */ |
| 80 | #define IRONLAKE_FDI_FREQ 2700000 /* in kHz for mode->clock */ |
| 81 | |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 82 | static bool |
| 83 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
| 84 | int target, int refclk, intel_clock_t *best_clock); |
| 85 | static bool |
| 86 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
| 87 | int target, int refclk, intel_clock_t *best_clock); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 88 | |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 89 | static bool |
| 90 | intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, |
| 91 | int target, int refclk, intel_clock_t *best_clock); |
Zhenyu Wang | 5eb08b6 | 2009-07-24 01:00:31 +0800 | [diff] [blame] | 92 | static bool |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 93 | intel_find_pll_ironlake_dp(const intel_limit_t *, struct drm_crtc *crtc, |
| 94 | int target, int refclk, intel_clock_t *best_clock); |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 95 | |
Chris Wilson | 021357a | 2010-09-07 20:54:59 +0100 | [diff] [blame] | 96 | static inline u32 /* units of 100MHz */ |
| 97 | intel_fdi_link_freq(struct drm_device *dev) |
| 98 | { |
Chris Wilson | 8b99e68 | 2010-10-13 09:59:17 +0100 | [diff] [blame] | 99 | if (IS_GEN5(dev)) { |
| 100 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 101 | return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2; |
| 102 | } else |
| 103 | return 27; |
Chris Wilson | 021357a | 2010-09-07 20:54:59 +0100 | [diff] [blame] | 104 | } |
| 105 | |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 106 | static const intel_limit_t intel_limits_i8xx_dvo = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 107 | .dot = { .min = 25000, .max = 350000 }, |
| 108 | .vco = { .min = 930000, .max = 1400000 }, |
| 109 | .n = { .min = 3, .max = 16 }, |
| 110 | .m = { .min = 96, .max = 140 }, |
| 111 | .m1 = { .min = 18, .max = 26 }, |
| 112 | .m2 = { .min = 6, .max = 16 }, |
| 113 | .p = { .min = 4, .max = 128 }, |
| 114 | .p1 = { .min = 2, .max = 33 }, |
| 115 | .p2 = { .dot_limit = 165000, |
| 116 | .p2_slow = 4, .p2_fast = 2 }, |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 117 | .find_pll = intel_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 118 | }; |
| 119 | |
| 120 | static const intel_limit_t intel_limits_i8xx_lvds = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 121 | .dot = { .min = 25000, .max = 350000 }, |
| 122 | .vco = { .min = 930000, .max = 1400000 }, |
| 123 | .n = { .min = 3, .max = 16 }, |
| 124 | .m = { .min = 96, .max = 140 }, |
| 125 | .m1 = { .min = 18, .max = 26 }, |
| 126 | .m2 = { .min = 6, .max = 16 }, |
| 127 | .p = { .min = 4, .max = 128 }, |
| 128 | .p1 = { .min = 1, .max = 6 }, |
| 129 | .p2 = { .dot_limit = 165000, |
| 130 | .p2_slow = 14, .p2_fast = 7 }, |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 131 | .find_pll = intel_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 132 | }; |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 133 | |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 134 | static const intel_limit_t intel_limits_i9xx_sdvo = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 135 | .dot = { .min = 20000, .max = 400000 }, |
| 136 | .vco = { .min = 1400000, .max = 2800000 }, |
| 137 | .n = { .min = 1, .max = 6 }, |
| 138 | .m = { .min = 70, .max = 120 }, |
| 139 | .m1 = { .min = 10, .max = 22 }, |
| 140 | .m2 = { .min = 5, .max = 9 }, |
| 141 | .p = { .min = 5, .max = 80 }, |
| 142 | .p1 = { .min = 1, .max = 8 }, |
| 143 | .p2 = { .dot_limit = 200000, |
| 144 | .p2_slow = 10, .p2_fast = 5 }, |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 145 | .find_pll = intel_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 146 | }; |
| 147 | |
| 148 | static const intel_limit_t intel_limits_i9xx_lvds = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 149 | .dot = { .min = 20000, .max = 400000 }, |
| 150 | .vco = { .min = 1400000, .max = 2800000 }, |
| 151 | .n = { .min = 1, .max = 6 }, |
| 152 | .m = { .min = 70, .max = 120 }, |
| 153 | .m1 = { .min = 10, .max = 22 }, |
| 154 | .m2 = { .min = 5, .max = 9 }, |
| 155 | .p = { .min = 7, .max = 98 }, |
| 156 | .p1 = { .min = 1, .max = 8 }, |
| 157 | .p2 = { .dot_limit = 112000, |
| 158 | .p2_slow = 14, .p2_fast = 7 }, |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 159 | .find_pll = intel_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 160 | }; |
| 161 | |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 162 | |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 163 | static const intel_limit_t intel_limits_g4x_sdvo = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 164 | .dot = { .min = 25000, .max = 270000 }, |
| 165 | .vco = { .min = 1750000, .max = 3500000}, |
| 166 | .n = { .min = 1, .max = 4 }, |
| 167 | .m = { .min = 104, .max = 138 }, |
| 168 | .m1 = { .min = 17, .max = 23 }, |
| 169 | .m2 = { .min = 5, .max = 11 }, |
| 170 | .p = { .min = 10, .max = 30 }, |
| 171 | .p1 = { .min = 1, .max = 3}, |
| 172 | .p2 = { .dot_limit = 270000, |
| 173 | .p2_slow = 10, |
| 174 | .p2_fast = 10 |
Ma Ling | 044c7c4 | 2009-03-18 20:13:23 +0800 | [diff] [blame] | 175 | }, |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 176 | .find_pll = intel_g4x_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 177 | }; |
| 178 | |
| 179 | static const intel_limit_t intel_limits_g4x_hdmi = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 180 | .dot = { .min = 22000, .max = 400000 }, |
| 181 | .vco = { .min = 1750000, .max = 3500000}, |
| 182 | .n = { .min = 1, .max = 4 }, |
| 183 | .m = { .min = 104, .max = 138 }, |
| 184 | .m1 = { .min = 16, .max = 23 }, |
| 185 | .m2 = { .min = 5, .max = 11 }, |
| 186 | .p = { .min = 5, .max = 80 }, |
| 187 | .p1 = { .min = 1, .max = 8}, |
| 188 | .p2 = { .dot_limit = 165000, |
| 189 | .p2_slow = 10, .p2_fast = 5 }, |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 190 | .find_pll = intel_g4x_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 191 | }; |
| 192 | |
| 193 | static const intel_limit_t intel_limits_g4x_single_channel_lvds = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 194 | .dot = { .min = 20000, .max = 115000 }, |
| 195 | .vco = { .min = 1750000, .max = 3500000 }, |
| 196 | .n = { .min = 1, .max = 3 }, |
| 197 | .m = { .min = 104, .max = 138 }, |
| 198 | .m1 = { .min = 17, .max = 23 }, |
| 199 | .m2 = { .min = 5, .max = 11 }, |
| 200 | .p = { .min = 28, .max = 112 }, |
| 201 | .p1 = { .min = 2, .max = 8 }, |
| 202 | .p2 = { .dot_limit = 0, |
| 203 | .p2_slow = 14, .p2_fast = 14 |
Ma Ling | 044c7c4 | 2009-03-18 20:13:23 +0800 | [diff] [blame] | 204 | }, |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 205 | .find_pll = intel_g4x_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 206 | }; |
| 207 | |
| 208 | static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 209 | .dot = { .min = 80000, .max = 224000 }, |
| 210 | .vco = { .min = 1750000, .max = 3500000 }, |
| 211 | .n = { .min = 1, .max = 3 }, |
| 212 | .m = { .min = 104, .max = 138 }, |
| 213 | .m1 = { .min = 17, .max = 23 }, |
| 214 | .m2 = { .min = 5, .max = 11 }, |
| 215 | .p = { .min = 14, .max = 42 }, |
| 216 | .p1 = { .min = 2, .max = 6 }, |
| 217 | .p2 = { .dot_limit = 0, |
| 218 | .p2_slow = 7, .p2_fast = 7 |
Ma Ling | 044c7c4 | 2009-03-18 20:13:23 +0800 | [diff] [blame] | 219 | }, |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 220 | .find_pll = intel_g4x_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 221 | }; |
| 222 | |
| 223 | static const intel_limit_t intel_limits_g4x_display_port = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 224 | .dot = { .min = 161670, .max = 227000 }, |
| 225 | .vco = { .min = 1750000, .max = 3500000}, |
| 226 | .n = { .min = 1, .max = 2 }, |
| 227 | .m = { .min = 97, .max = 108 }, |
| 228 | .m1 = { .min = 0x10, .max = 0x12 }, |
| 229 | .m2 = { .min = 0x05, .max = 0x06 }, |
| 230 | .p = { .min = 10, .max = 20 }, |
| 231 | .p1 = { .min = 1, .max = 2}, |
| 232 | .p2 = { .dot_limit = 0, |
| 233 | .p2_slow = 10, .p2_fast = 10 }, |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 234 | .find_pll = intel_find_pll_g4x_dp, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 235 | }; |
| 236 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 237 | static const intel_limit_t intel_limits_pineview_sdvo = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 238 | .dot = { .min = 20000, .max = 400000}, |
| 239 | .vco = { .min = 1700000, .max = 3500000 }, |
| 240 | /* Pineview's Ncounter is a ring counter */ |
| 241 | .n = { .min = 3, .max = 6 }, |
| 242 | .m = { .min = 2, .max = 256 }, |
| 243 | /* Pineview only has one combined m divider, which we treat as m2. */ |
| 244 | .m1 = { .min = 0, .max = 0 }, |
| 245 | .m2 = { .min = 0, .max = 254 }, |
| 246 | .p = { .min = 5, .max = 80 }, |
| 247 | .p1 = { .min = 1, .max = 8 }, |
| 248 | .p2 = { .dot_limit = 200000, |
| 249 | .p2_slow = 10, .p2_fast = 5 }, |
Shaohua Li | 6115707 | 2009-04-03 15:24:43 +0800 | [diff] [blame] | 250 | .find_pll = intel_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 251 | }; |
| 252 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 253 | static const intel_limit_t intel_limits_pineview_lvds = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 254 | .dot = { .min = 20000, .max = 400000 }, |
| 255 | .vco = { .min = 1700000, .max = 3500000 }, |
| 256 | .n = { .min = 3, .max = 6 }, |
| 257 | .m = { .min = 2, .max = 256 }, |
| 258 | .m1 = { .min = 0, .max = 0 }, |
| 259 | .m2 = { .min = 0, .max = 254 }, |
| 260 | .p = { .min = 7, .max = 112 }, |
| 261 | .p1 = { .min = 1, .max = 8 }, |
| 262 | .p2 = { .dot_limit = 112000, |
| 263 | .p2_slow = 14, .p2_fast = 14 }, |
Shaohua Li | 6115707 | 2009-04-03 15:24:43 +0800 | [diff] [blame] | 264 | .find_pll = intel_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 265 | }; |
| 266 | |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 267 | /* Ironlake / Sandybridge |
| 268 | * |
| 269 | * We calculate clock using (register_value + 2) for N/M1/M2, so here |
| 270 | * the range value for them is (actual_value - 2). |
| 271 | */ |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 272 | static const intel_limit_t intel_limits_ironlake_dac = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 273 | .dot = { .min = 25000, .max = 350000 }, |
| 274 | .vco = { .min = 1760000, .max = 3510000 }, |
| 275 | .n = { .min = 1, .max = 5 }, |
| 276 | .m = { .min = 79, .max = 127 }, |
| 277 | .m1 = { .min = 12, .max = 22 }, |
| 278 | .m2 = { .min = 5, .max = 9 }, |
| 279 | .p = { .min = 5, .max = 80 }, |
| 280 | .p1 = { .min = 1, .max = 8 }, |
| 281 | .p2 = { .dot_limit = 225000, |
| 282 | .p2_slow = 10, .p2_fast = 5 }, |
Zhao Yakui | 4547668 | 2009-12-31 16:06:04 +0800 | [diff] [blame] | 283 | .find_pll = intel_g4x_find_best_PLL, |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 284 | }; |
| 285 | |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 286 | static const intel_limit_t intel_limits_ironlake_single_lvds = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 287 | .dot = { .min = 25000, .max = 350000 }, |
| 288 | .vco = { .min = 1760000, .max = 3510000 }, |
| 289 | .n = { .min = 1, .max = 3 }, |
| 290 | .m = { .min = 79, .max = 118 }, |
| 291 | .m1 = { .min = 12, .max = 22 }, |
| 292 | .m2 = { .min = 5, .max = 9 }, |
| 293 | .p = { .min = 28, .max = 112 }, |
| 294 | .p1 = { .min = 2, .max = 8 }, |
| 295 | .p2 = { .dot_limit = 225000, |
| 296 | .p2_slow = 14, .p2_fast = 14 }, |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 297 | .find_pll = intel_g4x_find_best_PLL, |
| 298 | }; |
| 299 | |
| 300 | static const intel_limit_t intel_limits_ironlake_dual_lvds = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 301 | .dot = { .min = 25000, .max = 350000 }, |
| 302 | .vco = { .min = 1760000, .max = 3510000 }, |
| 303 | .n = { .min = 1, .max = 3 }, |
| 304 | .m = { .min = 79, .max = 127 }, |
| 305 | .m1 = { .min = 12, .max = 22 }, |
| 306 | .m2 = { .min = 5, .max = 9 }, |
| 307 | .p = { .min = 14, .max = 56 }, |
| 308 | .p1 = { .min = 2, .max = 8 }, |
| 309 | .p2 = { .dot_limit = 225000, |
| 310 | .p2_slow = 7, .p2_fast = 7 }, |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 311 | .find_pll = intel_g4x_find_best_PLL, |
| 312 | }; |
| 313 | |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 314 | /* LVDS 100mhz refclk limits. */ |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 315 | static const intel_limit_t intel_limits_ironlake_single_lvds_100m = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 316 | .dot = { .min = 25000, .max = 350000 }, |
| 317 | .vco = { .min = 1760000, .max = 3510000 }, |
| 318 | .n = { .min = 1, .max = 2 }, |
| 319 | .m = { .min = 79, .max = 126 }, |
| 320 | .m1 = { .min = 12, .max = 22 }, |
| 321 | .m2 = { .min = 5, .max = 9 }, |
| 322 | .p = { .min = 28, .max = 112 }, |
| 323 | .p1 = { .min = 2,.max = 8 }, |
| 324 | .p2 = { .dot_limit = 225000, |
| 325 | .p2_slow = 14, .p2_fast = 14 }, |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 326 | .find_pll = intel_g4x_find_best_PLL, |
| 327 | }; |
| 328 | |
| 329 | static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 330 | .dot = { .min = 25000, .max = 350000 }, |
| 331 | .vco = { .min = 1760000, .max = 3510000 }, |
| 332 | .n = { .min = 1, .max = 3 }, |
| 333 | .m = { .min = 79, .max = 126 }, |
| 334 | .m1 = { .min = 12, .max = 22 }, |
| 335 | .m2 = { .min = 5, .max = 9 }, |
| 336 | .p = { .min = 14, .max = 42 }, |
| 337 | .p1 = { .min = 2,.max = 6 }, |
| 338 | .p2 = { .dot_limit = 225000, |
| 339 | .p2_slow = 7, .p2_fast = 7 }, |
Zhao Yakui | 4547668 | 2009-12-31 16:06:04 +0800 | [diff] [blame] | 340 | .find_pll = intel_g4x_find_best_PLL, |
| 341 | }; |
| 342 | |
| 343 | static const intel_limit_t intel_limits_ironlake_display_port = { |
Eric Anholt | 273e27c | 2011-03-30 13:01:10 -0700 | [diff] [blame] | 344 | .dot = { .min = 25000, .max = 350000 }, |
| 345 | .vco = { .min = 1760000, .max = 3510000}, |
| 346 | .n = { .min = 1, .max = 2 }, |
| 347 | .m = { .min = 81, .max = 90 }, |
| 348 | .m1 = { .min = 12, .max = 22 }, |
| 349 | .m2 = { .min = 5, .max = 9 }, |
| 350 | .p = { .min = 10, .max = 20 }, |
| 351 | .p1 = { .min = 1, .max = 2}, |
| 352 | .p2 = { .dot_limit = 0, |
| 353 | .p2_slow = 10, .p2_fast = 10 }, |
Zhao Yakui | 4547668 | 2009-12-31 16:06:04 +0800 | [diff] [blame] | 354 | .find_pll = intel_find_pll_ironlake_dp, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 355 | }; |
| 356 | |
Chris Wilson | 1b894b5 | 2010-12-14 20:04:54 +0000 | [diff] [blame] | 357 | static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc, |
| 358 | int refclk) |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 359 | { |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 360 | struct drm_device *dev = crtc->dev; |
| 361 | struct drm_i915_private *dev_priv = dev->dev_private; |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 362 | const intel_limit_t *limit; |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 363 | |
| 364 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 365 | if ((I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == |
| 366 | LVDS_CLKB_POWER_UP) { |
| 367 | /* LVDS dual channel */ |
Chris Wilson | 1b894b5 | 2010-12-14 20:04:54 +0000 | [diff] [blame] | 368 | if (refclk == 100000) |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 369 | limit = &intel_limits_ironlake_dual_lvds_100m; |
| 370 | else |
| 371 | limit = &intel_limits_ironlake_dual_lvds; |
| 372 | } else { |
Chris Wilson | 1b894b5 | 2010-12-14 20:04:54 +0000 | [diff] [blame] | 373 | if (refclk == 100000) |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 374 | limit = &intel_limits_ironlake_single_lvds_100m; |
| 375 | else |
| 376 | limit = &intel_limits_ironlake_single_lvds; |
| 377 | } |
| 378 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) || |
Zhao Yakui | 4547668 | 2009-12-31 16:06:04 +0800 | [diff] [blame] | 379 | HAS_eDP) |
| 380 | limit = &intel_limits_ironlake_display_port; |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 381 | else |
Zhenyu Wang | b91ad0e | 2010-02-05 09:14:17 +0800 | [diff] [blame] | 382 | limit = &intel_limits_ironlake_dac; |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 383 | |
| 384 | return limit; |
| 385 | } |
| 386 | |
Ma Ling | 044c7c4 | 2009-03-18 20:13:23 +0800 | [diff] [blame] | 387 | static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) |
| 388 | { |
| 389 | struct drm_device *dev = crtc->dev; |
| 390 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 391 | const intel_limit_t *limit; |
| 392 | |
| 393 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
| 394 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == |
| 395 | LVDS_CLKB_POWER_UP) |
| 396 | /* LVDS with dual channel */ |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 397 | limit = &intel_limits_g4x_dual_channel_lvds; |
Ma Ling | 044c7c4 | 2009-03-18 20:13:23 +0800 | [diff] [blame] | 398 | else |
| 399 | /* LVDS with dual channel */ |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 400 | limit = &intel_limits_g4x_single_channel_lvds; |
Ma Ling | 044c7c4 | 2009-03-18 20:13:23 +0800 | [diff] [blame] | 401 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || |
| 402 | intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 403 | limit = &intel_limits_g4x_hdmi; |
Ma Ling | 044c7c4 | 2009-03-18 20:13:23 +0800 | [diff] [blame] | 404 | } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 405 | limit = &intel_limits_g4x_sdvo; |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 406 | } else if (intel_pipe_has_type (crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 407 | limit = &intel_limits_g4x_display_port; |
Ma Ling | 044c7c4 | 2009-03-18 20:13:23 +0800 | [diff] [blame] | 408 | } else /* The option is for other outputs */ |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 409 | limit = &intel_limits_i9xx_sdvo; |
Ma Ling | 044c7c4 | 2009-03-18 20:13:23 +0800 | [diff] [blame] | 410 | |
| 411 | return limit; |
| 412 | } |
| 413 | |
Chris Wilson | 1b894b5 | 2010-12-14 20:04:54 +0000 | [diff] [blame] | 414 | static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 415 | { |
| 416 | struct drm_device *dev = crtc->dev; |
| 417 | const intel_limit_t *limit; |
| 418 | |
Eric Anholt | bad720f | 2009-10-22 16:11:14 -0700 | [diff] [blame] | 419 | if (HAS_PCH_SPLIT(dev)) |
Chris Wilson | 1b894b5 | 2010-12-14 20:04:54 +0000 | [diff] [blame] | 420 | limit = intel_ironlake_limit(crtc, refclk); |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 421 | else if (IS_G4X(dev)) { |
Ma Ling | 044c7c4 | 2009-03-18 20:13:23 +0800 | [diff] [blame] | 422 | limit = intel_g4x_limit(crtc); |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 423 | } else if (IS_PINEVIEW(dev)) { |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 424 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 425 | limit = &intel_limits_pineview_lvds; |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 426 | else |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 427 | limit = &intel_limits_pineview_sdvo; |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 428 | } else if (!IS_GEN2(dev)) { |
| 429 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
| 430 | limit = &intel_limits_i9xx_lvds; |
| 431 | else |
| 432 | limit = &intel_limits_i9xx_sdvo; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 433 | } else { |
| 434 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 435 | limit = &intel_limits_i8xx_lvds; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 436 | else |
Keith Packard | e4b3669 | 2009-06-05 19:22:17 -0700 | [diff] [blame] | 437 | limit = &intel_limits_i8xx_dvo; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 438 | } |
| 439 | return limit; |
| 440 | } |
| 441 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 442 | /* m1 is reserved as 0 in Pineview, n is a ring counter */ |
| 443 | static void pineview_clock(int refclk, intel_clock_t *clock) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 444 | { |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 445 | clock->m = clock->m2 + 2; |
| 446 | clock->p = clock->p1 * clock->p2; |
| 447 | clock->vco = refclk * clock->m / clock->n; |
| 448 | clock->dot = clock->vco / clock->p; |
| 449 | } |
| 450 | |
| 451 | static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) |
| 452 | { |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 453 | if (IS_PINEVIEW(dev)) { |
| 454 | pineview_clock(refclk, clock); |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 455 | return; |
| 456 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 457 | clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); |
| 458 | clock->p = clock->p1 * clock->p2; |
| 459 | clock->vco = refclk * clock->m / (clock->n + 2); |
| 460 | clock->dot = clock->vco / clock->p; |
| 461 | } |
| 462 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 463 | /** |
| 464 | * Returns whether any output on the specified pipe is of the specified type |
| 465 | */ |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 466 | bool intel_pipe_has_type(struct drm_crtc *crtc, int type) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 467 | { |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 468 | struct drm_device *dev = crtc->dev; |
| 469 | struct drm_mode_config *mode_config = &dev->mode_config; |
| 470 | struct intel_encoder *encoder; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 471 | |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 472 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) |
| 473 | if (encoder->base.crtc == crtc && encoder->type == type) |
| 474 | return true; |
| 475 | |
| 476 | return false; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 477 | } |
| 478 | |
Jesse Barnes | 7c04d1d | 2009-02-23 15:36:40 -0800 | [diff] [blame] | 479 | #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 480 | /** |
| 481 | * Returns whether the given set of divisors are valid for a given refclk with |
| 482 | * the given connectors. |
| 483 | */ |
| 484 | |
Chris Wilson | 1b894b5 | 2010-12-14 20:04:54 +0000 | [diff] [blame] | 485 | static bool intel_PLL_is_valid(struct drm_device *dev, |
| 486 | const intel_limit_t *limit, |
| 487 | const intel_clock_t *clock) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 488 | { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 489 | if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1) |
| 490 | INTELPllInvalid ("p1 out of range\n"); |
| 491 | if (clock->p < limit->p.min || limit->p.max < clock->p) |
| 492 | INTELPllInvalid ("p out of range\n"); |
| 493 | if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2) |
| 494 | INTELPllInvalid ("m2 out of range\n"); |
| 495 | if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1) |
| 496 | INTELPllInvalid ("m1 out of range\n"); |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 497 | if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev)) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 498 | INTELPllInvalid ("m1 <= m2\n"); |
| 499 | if (clock->m < limit->m.min || limit->m.max < clock->m) |
| 500 | INTELPllInvalid ("m out of range\n"); |
| 501 | if (clock->n < limit->n.min || limit->n.max < clock->n) |
| 502 | INTELPllInvalid ("n out of range\n"); |
| 503 | if (clock->vco < limit->vco.min || limit->vco.max < clock->vco) |
| 504 | INTELPllInvalid ("vco out of range\n"); |
| 505 | /* XXX: We may need to be checking "Dot clock" depending on the multiplier, |
| 506 | * connector, etc., rather than just a single range. |
| 507 | */ |
| 508 | if (clock->dot < limit->dot.min || limit->dot.max < clock->dot) |
| 509 | INTELPllInvalid ("dot out of range\n"); |
| 510 | |
| 511 | return true; |
| 512 | } |
| 513 | |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 514 | static bool |
| 515 | intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
| 516 | int target, int refclk, intel_clock_t *best_clock) |
| 517 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 518 | { |
| 519 | struct drm_device *dev = crtc->dev; |
| 520 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 521 | intel_clock_t clock; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 522 | int err = target; |
| 523 | |
Bruno Prémont | bc5e571 | 2009-08-08 13:01:17 +0200 | [diff] [blame] | 524 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) && |
Florian Mickler | 832cc28 | 2009-07-13 18:40:32 +0800 | [diff] [blame] | 525 | (I915_READ(LVDS)) != 0) { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 526 | /* |
| 527 | * For LVDS, if the panel is on, just rely on its current |
| 528 | * settings for dual-channel. We haven't figured out how to |
| 529 | * reliably set up different single/dual channel state, if we |
| 530 | * even can. |
| 531 | */ |
| 532 | if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == |
| 533 | LVDS_CLKB_POWER_UP) |
| 534 | clock.p2 = limit->p2.p2_fast; |
| 535 | else |
| 536 | clock.p2 = limit->p2.p2_slow; |
| 537 | } else { |
| 538 | if (target < limit->p2.dot_limit) |
| 539 | clock.p2 = limit->p2.p2_slow; |
| 540 | else |
| 541 | clock.p2 = limit->p2.p2_fast; |
| 542 | } |
| 543 | |
| 544 | memset (best_clock, 0, sizeof (*best_clock)); |
| 545 | |
Zhao Yakui | 4215866 | 2009-11-20 11:24:18 +0800 | [diff] [blame] | 546 | for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; |
| 547 | clock.m1++) { |
| 548 | for (clock.m2 = limit->m2.min; |
| 549 | clock.m2 <= limit->m2.max; clock.m2++) { |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 550 | /* m1 is always 0 in Pineview */ |
| 551 | if (clock.m2 >= clock.m1 && !IS_PINEVIEW(dev)) |
Zhao Yakui | 4215866 | 2009-11-20 11:24:18 +0800 | [diff] [blame] | 552 | break; |
| 553 | for (clock.n = limit->n.min; |
| 554 | clock.n <= limit->n.max; clock.n++) { |
| 555 | for (clock.p1 = limit->p1.min; |
| 556 | clock.p1 <= limit->p1.max; clock.p1++) { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 557 | int this_err; |
| 558 | |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 559 | intel_clock(dev, refclk, &clock); |
Chris Wilson | 1b894b5 | 2010-12-14 20:04:54 +0000 | [diff] [blame] | 560 | if (!intel_PLL_is_valid(dev, limit, |
| 561 | &clock)) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 562 | continue; |
| 563 | |
| 564 | this_err = abs(clock.dot - target); |
| 565 | if (this_err < err) { |
| 566 | *best_clock = clock; |
| 567 | err = this_err; |
| 568 | } |
| 569 | } |
| 570 | } |
| 571 | } |
| 572 | } |
| 573 | |
| 574 | return (err != target); |
| 575 | } |
| 576 | |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 577 | static bool |
| 578 | intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, |
| 579 | int target, int refclk, intel_clock_t *best_clock) |
| 580 | { |
| 581 | struct drm_device *dev = crtc->dev; |
| 582 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 583 | intel_clock_t clock; |
| 584 | int max_n; |
| 585 | bool found; |
Adam Jackson | 6ba770d | 2010-07-02 16:43:30 -0400 | [diff] [blame] | 586 | /* approximately equals target * 0.00585 */ |
| 587 | int err_most = (target >> 8) + (target >> 9); |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 588 | found = false; |
| 589 | |
| 590 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
Zhao Yakui | 4547668 | 2009-12-31 16:06:04 +0800 | [diff] [blame] | 591 | int lvds_reg; |
| 592 | |
Eric Anholt | c619eed | 2010-01-28 16:45:52 -0800 | [diff] [blame] | 593 | if (HAS_PCH_SPLIT(dev)) |
Zhao Yakui | 4547668 | 2009-12-31 16:06:04 +0800 | [diff] [blame] | 594 | lvds_reg = PCH_LVDS; |
| 595 | else |
| 596 | lvds_reg = LVDS; |
| 597 | if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) == |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 598 | LVDS_CLKB_POWER_UP) |
| 599 | clock.p2 = limit->p2.p2_fast; |
| 600 | else |
| 601 | clock.p2 = limit->p2.p2_slow; |
| 602 | } else { |
| 603 | if (target < limit->p2.dot_limit) |
| 604 | clock.p2 = limit->p2.p2_slow; |
| 605 | else |
| 606 | clock.p2 = limit->p2.p2_fast; |
| 607 | } |
| 608 | |
| 609 | memset(best_clock, 0, sizeof(*best_clock)); |
| 610 | max_n = limit->n.max; |
Gilles Espinasse | f77f13e | 2010-03-29 15:41:47 +0200 | [diff] [blame] | 611 | /* based on hardware requirement, prefer smaller n to precision */ |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 612 | for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { |
Gilles Espinasse | f77f13e | 2010-03-29 15:41:47 +0200 | [diff] [blame] | 613 | /* based on hardware requirement, prefere larger m1,m2 */ |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 614 | for (clock.m1 = limit->m1.max; |
| 615 | clock.m1 >= limit->m1.min; clock.m1--) { |
| 616 | for (clock.m2 = limit->m2.max; |
| 617 | clock.m2 >= limit->m2.min; clock.m2--) { |
| 618 | for (clock.p1 = limit->p1.max; |
| 619 | clock.p1 >= limit->p1.min; clock.p1--) { |
| 620 | int this_err; |
| 621 | |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 622 | intel_clock(dev, refclk, &clock); |
Chris Wilson | 1b894b5 | 2010-12-14 20:04:54 +0000 | [diff] [blame] | 623 | if (!intel_PLL_is_valid(dev, limit, |
| 624 | &clock)) |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 625 | continue; |
Chris Wilson | 1b894b5 | 2010-12-14 20:04:54 +0000 | [diff] [blame] | 626 | |
| 627 | this_err = abs(clock.dot - target); |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 628 | if (this_err < err_most) { |
| 629 | *best_clock = clock; |
| 630 | err_most = this_err; |
| 631 | max_n = clock.n; |
| 632 | found = true; |
| 633 | } |
| 634 | } |
| 635 | } |
| 636 | } |
| 637 | } |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 638 | return found; |
| 639 | } |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 640 | |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 641 | static bool |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 642 | intel_find_pll_ironlake_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
| 643 | int target, int refclk, intel_clock_t *best_clock) |
Zhenyu Wang | 5eb08b6 | 2009-07-24 01:00:31 +0800 | [diff] [blame] | 644 | { |
| 645 | struct drm_device *dev = crtc->dev; |
| 646 | intel_clock_t clock; |
Zhao Yakui | 4547668 | 2009-12-31 16:06:04 +0800 | [diff] [blame] | 647 | |
Zhenyu Wang | 5eb08b6 | 2009-07-24 01:00:31 +0800 | [diff] [blame] | 648 | if (target < 200000) { |
| 649 | clock.n = 1; |
| 650 | clock.p1 = 2; |
| 651 | clock.p2 = 10; |
| 652 | clock.m1 = 12; |
| 653 | clock.m2 = 9; |
| 654 | } else { |
| 655 | clock.n = 2; |
| 656 | clock.p1 = 1; |
| 657 | clock.p2 = 10; |
| 658 | clock.m1 = 14; |
| 659 | clock.m2 = 8; |
| 660 | } |
| 661 | intel_clock(dev, refclk, &clock); |
| 662 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); |
| 663 | return true; |
| 664 | } |
| 665 | |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 666 | /* DisplayPort has only two frequencies, 162MHz and 270MHz */ |
| 667 | static bool |
| 668 | intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, |
| 669 | int target, int refclk, intel_clock_t *best_clock) |
| 670 | { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 671 | intel_clock_t clock; |
| 672 | if (target < 200000) { |
| 673 | clock.p1 = 2; |
| 674 | clock.p2 = 10; |
| 675 | clock.n = 2; |
| 676 | clock.m1 = 23; |
| 677 | clock.m2 = 8; |
| 678 | } else { |
| 679 | clock.p1 = 1; |
| 680 | clock.p2 = 10; |
| 681 | clock.n = 1; |
| 682 | clock.m1 = 14; |
| 683 | clock.m2 = 2; |
| 684 | } |
| 685 | clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2); |
| 686 | clock.p = (clock.p1 * clock.p2); |
| 687 | clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p; |
| 688 | clock.vco = 0; |
| 689 | memcpy(best_clock, &clock, sizeof(intel_clock_t)); |
| 690 | return true; |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 691 | } |
| 692 | |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 693 | /** |
| 694 | * intel_wait_for_vblank - wait for vblank on a given pipe |
| 695 | * @dev: drm device |
| 696 | * @pipe: pipe to wait for |
| 697 | * |
| 698 | * Wait for vblank to occur on a given pipe. Needed for various bits of |
| 699 | * mode setting code. |
| 700 | */ |
| 701 | void intel_wait_for_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 702 | { |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 703 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 704 | int pipestat_reg = PIPESTAT(pipe); |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 705 | |
Chris Wilson | 300387c | 2010-09-05 20:25:43 +0100 | [diff] [blame] | 706 | /* Clear existing vblank status. Note this will clear any other |
| 707 | * sticky status fields as well. |
| 708 | * |
| 709 | * This races with i915_driver_irq_handler() with the result |
| 710 | * that either function could miss a vblank event. Here it is not |
| 711 | * fatal, as we will either wait upon the next vblank interrupt or |
| 712 | * timeout. Generally speaking intel_wait_for_vblank() is only |
| 713 | * called during modeset at which time the GPU should be idle and |
| 714 | * should *not* be performing page flips and thus not waiting on |
| 715 | * vblanks... |
| 716 | * Currently, the result of us stealing a vblank from the irq |
| 717 | * handler is that a single frame will be skipped during swapbuffers. |
| 718 | */ |
| 719 | I915_WRITE(pipestat_reg, |
| 720 | I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS); |
| 721 | |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 722 | /* Wait for vblank interrupt bit to set */ |
Chris Wilson | 481b6af | 2010-08-23 17:43:35 +0100 | [diff] [blame] | 723 | if (wait_for(I915_READ(pipestat_reg) & |
| 724 | PIPE_VBLANK_INTERRUPT_STATUS, |
| 725 | 50)) |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 726 | DRM_DEBUG_KMS("vblank wait timed out\n"); |
| 727 | } |
| 728 | |
Keith Packard | ab7ad7f | 2010-10-03 00:33:06 -0700 | [diff] [blame] | 729 | /* |
| 730 | * intel_wait_for_pipe_off - wait for pipe to turn off |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 731 | * @dev: drm device |
| 732 | * @pipe: pipe to wait for |
| 733 | * |
| 734 | * After disabling a pipe, we can't wait for vblank in the usual way, |
| 735 | * spinning on the vblank interrupt status bit, since we won't actually |
| 736 | * see an interrupt when the pipe is disabled. |
| 737 | * |
Keith Packard | ab7ad7f | 2010-10-03 00:33:06 -0700 | [diff] [blame] | 738 | * On Gen4 and above: |
| 739 | * wait for the pipe register state bit to turn off |
| 740 | * |
| 741 | * Otherwise: |
| 742 | * wait for the display line value to settle (it usually |
| 743 | * ends up stopping at the start of the next frame). |
Chris Wilson | 58e10eb | 2010-10-03 10:56:11 +0100 | [diff] [blame] | 744 | * |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 745 | */ |
Chris Wilson | 58e10eb | 2010-10-03 10:56:11 +0100 | [diff] [blame] | 746 | void intel_wait_for_pipe_off(struct drm_device *dev, int pipe) |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 747 | { |
| 748 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 749 | |
Keith Packard | ab7ad7f | 2010-10-03 00:33:06 -0700 | [diff] [blame] | 750 | if (INTEL_INFO(dev)->gen >= 4) { |
Chris Wilson | 58e10eb | 2010-10-03 10:56:11 +0100 | [diff] [blame] | 751 | int reg = PIPECONF(pipe); |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 752 | |
Keith Packard | ab7ad7f | 2010-10-03 00:33:06 -0700 | [diff] [blame] | 753 | /* Wait for the Pipe State to go off */ |
Chris Wilson | 58e10eb | 2010-10-03 10:56:11 +0100 | [diff] [blame] | 754 | if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0, |
| 755 | 100)) |
Keith Packard | ab7ad7f | 2010-10-03 00:33:06 -0700 | [diff] [blame] | 756 | DRM_DEBUG_KMS("pipe_off wait timed out\n"); |
| 757 | } else { |
| 758 | u32 last_line; |
Chris Wilson | 58e10eb | 2010-10-03 10:56:11 +0100 | [diff] [blame] | 759 | int reg = PIPEDSL(pipe); |
Keith Packard | ab7ad7f | 2010-10-03 00:33:06 -0700 | [diff] [blame] | 760 | unsigned long timeout = jiffies + msecs_to_jiffies(100); |
| 761 | |
| 762 | /* Wait for the display line to settle */ |
| 763 | do { |
Chris Wilson | 58e10eb | 2010-10-03 10:56:11 +0100 | [diff] [blame] | 764 | last_line = I915_READ(reg) & DSL_LINEMASK; |
Keith Packard | ab7ad7f | 2010-10-03 00:33:06 -0700 | [diff] [blame] | 765 | mdelay(5); |
Chris Wilson | 58e10eb | 2010-10-03 10:56:11 +0100 | [diff] [blame] | 766 | } while (((I915_READ(reg) & DSL_LINEMASK) != last_line) && |
Keith Packard | ab7ad7f | 2010-10-03 00:33:06 -0700 | [diff] [blame] | 767 | time_after(timeout, jiffies)); |
| 768 | if (time_after(jiffies, timeout)) |
| 769 | DRM_DEBUG_KMS("pipe_off wait timed out\n"); |
| 770 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 771 | } |
| 772 | |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 773 | static const char *state_string(bool enabled) |
| 774 | { |
| 775 | return enabled ? "on" : "off"; |
| 776 | } |
| 777 | |
| 778 | /* Only for pre-ILK configs */ |
| 779 | static void assert_pll(struct drm_i915_private *dev_priv, |
| 780 | enum pipe pipe, bool state) |
| 781 | { |
| 782 | int reg; |
| 783 | u32 val; |
| 784 | bool cur_state; |
| 785 | |
| 786 | reg = DPLL(pipe); |
| 787 | val = I915_READ(reg); |
| 788 | cur_state = !!(val & DPLL_VCO_ENABLE); |
| 789 | WARN(cur_state != state, |
| 790 | "PLL state assertion failure (expected %s, current %s)\n", |
| 791 | state_string(state), state_string(cur_state)); |
| 792 | } |
| 793 | #define assert_pll_enabled(d, p) assert_pll(d, p, true) |
| 794 | #define assert_pll_disabled(d, p) assert_pll(d, p, false) |
| 795 | |
Jesse Barnes | 040484a | 2011-01-03 12:14:26 -0800 | [diff] [blame] | 796 | /* For ILK+ */ |
| 797 | static void assert_pch_pll(struct drm_i915_private *dev_priv, |
| 798 | enum pipe pipe, bool state) |
| 799 | { |
| 800 | int reg; |
| 801 | u32 val; |
| 802 | bool cur_state; |
| 803 | |
| 804 | reg = PCH_DPLL(pipe); |
| 805 | val = I915_READ(reg); |
| 806 | cur_state = !!(val & DPLL_VCO_ENABLE); |
| 807 | WARN(cur_state != state, |
| 808 | "PCH PLL state assertion failure (expected %s, current %s)\n", |
| 809 | state_string(state), state_string(cur_state)); |
| 810 | } |
| 811 | #define assert_pch_pll_enabled(d, p) assert_pch_pll(d, p, true) |
| 812 | #define assert_pch_pll_disabled(d, p) assert_pch_pll(d, p, false) |
| 813 | |
| 814 | static void assert_fdi_tx(struct drm_i915_private *dev_priv, |
| 815 | enum pipe pipe, bool state) |
| 816 | { |
| 817 | int reg; |
| 818 | u32 val; |
| 819 | bool cur_state; |
| 820 | |
| 821 | reg = FDI_TX_CTL(pipe); |
| 822 | val = I915_READ(reg); |
| 823 | cur_state = !!(val & FDI_TX_ENABLE); |
| 824 | WARN(cur_state != state, |
| 825 | "FDI TX state assertion failure (expected %s, current %s)\n", |
| 826 | state_string(state), state_string(cur_state)); |
| 827 | } |
| 828 | #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true) |
| 829 | #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false) |
| 830 | |
| 831 | static void assert_fdi_rx(struct drm_i915_private *dev_priv, |
| 832 | enum pipe pipe, bool state) |
| 833 | { |
| 834 | int reg; |
| 835 | u32 val; |
| 836 | bool cur_state; |
| 837 | |
| 838 | reg = FDI_RX_CTL(pipe); |
| 839 | val = I915_READ(reg); |
| 840 | cur_state = !!(val & FDI_RX_ENABLE); |
| 841 | WARN(cur_state != state, |
| 842 | "FDI RX state assertion failure (expected %s, current %s)\n", |
| 843 | state_string(state), state_string(cur_state)); |
| 844 | } |
| 845 | #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true) |
| 846 | #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false) |
| 847 | |
| 848 | static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv, |
| 849 | enum pipe pipe) |
| 850 | { |
| 851 | int reg; |
| 852 | u32 val; |
| 853 | |
| 854 | /* ILK FDI PLL is always enabled */ |
| 855 | if (dev_priv->info->gen == 5) |
| 856 | return; |
| 857 | |
| 858 | reg = FDI_TX_CTL(pipe); |
| 859 | val = I915_READ(reg); |
| 860 | WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n"); |
| 861 | } |
| 862 | |
| 863 | static void assert_fdi_rx_pll_enabled(struct drm_i915_private *dev_priv, |
| 864 | enum pipe pipe) |
| 865 | { |
| 866 | int reg; |
| 867 | u32 val; |
| 868 | |
| 869 | reg = FDI_RX_CTL(pipe); |
| 870 | val = I915_READ(reg); |
| 871 | WARN(!(val & FDI_RX_PLL_ENABLE), "FDI RX PLL assertion failure, should be active but is disabled\n"); |
| 872 | } |
| 873 | |
Jesse Barnes | ea0760c | 2011-01-04 15:09:32 -0800 | [diff] [blame] | 874 | static void assert_panel_unlocked(struct drm_i915_private *dev_priv, |
| 875 | enum pipe pipe) |
| 876 | { |
| 877 | int pp_reg, lvds_reg; |
| 878 | u32 val; |
| 879 | enum pipe panel_pipe = PIPE_A; |
| 880 | bool locked = locked; |
| 881 | |
| 882 | if (HAS_PCH_SPLIT(dev_priv->dev)) { |
| 883 | pp_reg = PCH_PP_CONTROL; |
| 884 | lvds_reg = PCH_LVDS; |
| 885 | } else { |
| 886 | pp_reg = PP_CONTROL; |
| 887 | lvds_reg = LVDS; |
| 888 | } |
| 889 | |
| 890 | val = I915_READ(pp_reg); |
| 891 | if (!(val & PANEL_POWER_ON) || |
| 892 | ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS)) |
| 893 | locked = false; |
| 894 | |
| 895 | if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT) |
| 896 | panel_pipe = PIPE_B; |
| 897 | |
| 898 | WARN(panel_pipe == pipe && locked, |
| 899 | "panel assertion failure, pipe %c regs locked\n", |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 900 | pipe_name(pipe)); |
Jesse Barnes | ea0760c | 2011-01-04 15:09:32 -0800 | [diff] [blame] | 901 | } |
| 902 | |
Jesse Barnes | 63d7bbe | 2011-01-04 15:09:33 -0800 | [diff] [blame] | 903 | static void assert_pipe(struct drm_i915_private *dev_priv, |
| 904 | enum pipe pipe, bool state) |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 905 | { |
| 906 | int reg; |
| 907 | u32 val; |
Jesse Barnes | 63d7bbe | 2011-01-04 15:09:33 -0800 | [diff] [blame] | 908 | bool cur_state; |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 909 | |
| 910 | reg = PIPECONF(pipe); |
| 911 | val = I915_READ(reg); |
Jesse Barnes | 63d7bbe | 2011-01-04 15:09:33 -0800 | [diff] [blame] | 912 | cur_state = !!(val & PIPECONF_ENABLE); |
| 913 | WARN(cur_state != state, |
| 914 | "pipe %c assertion failure (expected %s, current %s)\n", |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 915 | pipe_name(pipe), state_string(state), state_string(cur_state)); |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 916 | } |
Jesse Barnes | 63d7bbe | 2011-01-04 15:09:33 -0800 | [diff] [blame] | 917 | #define assert_pipe_enabled(d, p) assert_pipe(d, p, true) |
| 918 | #define assert_pipe_disabled(d, p) assert_pipe(d, p, false) |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 919 | |
| 920 | static void assert_plane_enabled(struct drm_i915_private *dev_priv, |
| 921 | enum plane plane) |
| 922 | { |
| 923 | int reg; |
| 924 | u32 val; |
| 925 | |
| 926 | reg = DSPCNTR(plane); |
| 927 | val = I915_READ(reg); |
| 928 | WARN(!(val & DISPLAY_PLANE_ENABLE), |
| 929 | "plane %c assertion failure, should be active but is disabled\n", |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 930 | plane_name(plane)); |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 931 | } |
| 932 | |
| 933 | static void assert_planes_disabled(struct drm_i915_private *dev_priv, |
| 934 | enum pipe pipe) |
| 935 | { |
| 936 | int reg, i; |
| 937 | u32 val; |
| 938 | int cur_pipe; |
| 939 | |
Jesse Barnes | 19ec135 | 2011-02-02 12:28:02 -0800 | [diff] [blame] | 940 | /* Planes are fixed to pipes on ILK+ */ |
| 941 | if (HAS_PCH_SPLIT(dev_priv->dev)) |
| 942 | return; |
| 943 | |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 944 | /* Need to check both planes against the pipe */ |
| 945 | for (i = 0; i < 2; i++) { |
| 946 | reg = DSPCNTR(i); |
| 947 | val = I915_READ(reg); |
| 948 | cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >> |
| 949 | DISPPLANE_SEL_PIPE_SHIFT; |
| 950 | WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe, |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 951 | "plane %c assertion failure, should be off on pipe %c but is still active\n", |
| 952 | plane_name(i), pipe_name(pipe)); |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 953 | } |
| 954 | } |
| 955 | |
Jesse Barnes | 92f2584 | 2011-01-04 15:09:34 -0800 | [diff] [blame] | 956 | static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) |
| 957 | { |
| 958 | u32 val; |
| 959 | bool enabled; |
| 960 | |
| 961 | val = I915_READ(PCH_DREF_CONTROL); |
| 962 | enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | |
| 963 | DREF_SUPERSPREAD_SOURCE_MASK)); |
| 964 | WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n"); |
| 965 | } |
| 966 | |
| 967 | static void assert_transcoder_disabled(struct drm_i915_private *dev_priv, |
| 968 | enum pipe pipe) |
| 969 | { |
| 970 | int reg; |
| 971 | u32 val; |
| 972 | bool enabled; |
| 973 | |
| 974 | reg = TRANSCONF(pipe); |
| 975 | val = I915_READ(reg); |
| 976 | enabled = !!(val & TRANS_ENABLE); |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 977 | WARN(enabled, |
| 978 | "transcoder assertion failed, should be off on pipe %c but is still active\n", |
| 979 | pipe_name(pipe)); |
Jesse Barnes | 92f2584 | 2011-01-04 15:09:34 -0800 | [diff] [blame] | 980 | } |
| 981 | |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 982 | static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, |
| 983 | enum pipe pipe, int reg) |
| 984 | { |
Jesse Barnes | 47a05ec | 2011-02-07 13:46:40 -0800 | [diff] [blame] | 985 | u32 val = I915_READ(reg); |
| 986 | WARN(DP_PIPE_ENABLED(val, pipe), |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 987 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 988 | reg, pipe_name(pipe)); |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 989 | } |
| 990 | |
| 991 | static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, |
| 992 | enum pipe pipe, int reg) |
| 993 | { |
Jesse Barnes | 47a05ec | 2011-02-07 13:46:40 -0800 | [diff] [blame] | 994 | u32 val = I915_READ(reg); |
| 995 | WARN(HDMI_PIPE_ENABLED(val, pipe), |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 996 | "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 997 | reg, pipe_name(pipe)); |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 998 | } |
| 999 | |
| 1000 | static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, |
| 1001 | enum pipe pipe) |
| 1002 | { |
| 1003 | int reg; |
| 1004 | u32 val; |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 1005 | |
| 1006 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B); |
| 1007 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C); |
| 1008 | assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D); |
| 1009 | |
| 1010 | reg = PCH_ADPA; |
| 1011 | val = I915_READ(reg); |
Jesse Barnes | 47a05ec | 2011-02-07 13:46:40 -0800 | [diff] [blame] | 1012 | WARN(ADPA_PIPE_ENABLED(val, pipe), |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 1013 | "PCH VGA enabled on transcoder %c, should be disabled\n", |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1014 | pipe_name(pipe)); |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 1015 | |
| 1016 | reg = PCH_LVDS; |
| 1017 | val = I915_READ(reg); |
Jesse Barnes | 47a05ec | 2011-02-07 13:46:40 -0800 | [diff] [blame] | 1018 | WARN(LVDS_PIPE_ENABLED(val, pipe), |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 1019 | "PCH LVDS enabled on transcoder %c, should be disabled\n", |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1020 | pipe_name(pipe)); |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 1021 | |
| 1022 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB); |
| 1023 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC); |
| 1024 | assert_pch_hdmi_disabled(dev_priv, pipe, HDMID); |
| 1025 | } |
| 1026 | |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 1027 | /** |
Jesse Barnes | 63d7bbe | 2011-01-04 15:09:33 -0800 | [diff] [blame] | 1028 | * intel_enable_pll - enable a PLL |
| 1029 | * @dev_priv: i915 private structure |
| 1030 | * @pipe: pipe PLL to enable |
| 1031 | * |
| 1032 | * Enable @pipe's PLL so we can start pumping pixels from a plane. Check to |
| 1033 | * make sure the PLL reg is writable first though, since the panel write |
| 1034 | * protect mechanism may be enabled. |
| 1035 | * |
| 1036 | * Note! This is for pre-ILK only. |
| 1037 | */ |
| 1038 | static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
| 1039 | { |
| 1040 | int reg; |
| 1041 | u32 val; |
| 1042 | |
| 1043 | /* No really, not for ILK+ */ |
| 1044 | BUG_ON(dev_priv->info->gen >= 5); |
| 1045 | |
| 1046 | /* PLL is protected by panel, make sure we can write it */ |
| 1047 | if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev)) |
| 1048 | assert_panel_unlocked(dev_priv, pipe); |
| 1049 | |
| 1050 | reg = DPLL(pipe); |
| 1051 | val = I915_READ(reg); |
| 1052 | val |= DPLL_VCO_ENABLE; |
| 1053 | |
| 1054 | /* We do this three times for luck */ |
| 1055 | I915_WRITE(reg, val); |
| 1056 | POSTING_READ(reg); |
| 1057 | udelay(150); /* wait for warmup */ |
| 1058 | I915_WRITE(reg, val); |
| 1059 | POSTING_READ(reg); |
| 1060 | udelay(150); /* wait for warmup */ |
| 1061 | I915_WRITE(reg, val); |
| 1062 | POSTING_READ(reg); |
| 1063 | udelay(150); /* wait for warmup */ |
| 1064 | } |
| 1065 | |
| 1066 | /** |
| 1067 | * intel_disable_pll - disable a PLL |
| 1068 | * @dev_priv: i915 private structure |
| 1069 | * @pipe: pipe PLL to disable |
| 1070 | * |
| 1071 | * Disable the PLL for @pipe, making sure the pipe is off first. |
| 1072 | * |
| 1073 | * Note! This is for pre-ILK only. |
| 1074 | */ |
| 1075 | static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) |
| 1076 | { |
| 1077 | int reg; |
| 1078 | u32 val; |
| 1079 | |
| 1080 | /* Don't disable pipe A or pipe A PLLs if needed */ |
| 1081 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) |
| 1082 | return; |
| 1083 | |
| 1084 | /* Make sure the pipe isn't still relying on us */ |
| 1085 | assert_pipe_disabled(dev_priv, pipe); |
| 1086 | |
| 1087 | reg = DPLL(pipe); |
| 1088 | val = I915_READ(reg); |
| 1089 | val &= ~DPLL_VCO_ENABLE; |
| 1090 | I915_WRITE(reg, val); |
| 1091 | POSTING_READ(reg); |
| 1092 | } |
| 1093 | |
| 1094 | /** |
Jesse Barnes | 92f2584 | 2011-01-04 15:09:34 -0800 | [diff] [blame] | 1095 | * intel_enable_pch_pll - enable PCH PLL |
| 1096 | * @dev_priv: i915 private structure |
| 1097 | * @pipe: pipe PLL to enable |
| 1098 | * |
| 1099 | * The PCH PLL needs to be enabled before the PCH transcoder, since it |
| 1100 | * drives the transcoder clock. |
| 1101 | */ |
| 1102 | static void intel_enable_pch_pll(struct drm_i915_private *dev_priv, |
| 1103 | enum pipe pipe) |
| 1104 | { |
| 1105 | int reg; |
| 1106 | u32 val; |
| 1107 | |
| 1108 | /* PCH only available on ILK+ */ |
| 1109 | BUG_ON(dev_priv->info->gen < 5); |
| 1110 | |
| 1111 | /* PCH refclock must be enabled first */ |
| 1112 | assert_pch_refclk_enabled(dev_priv); |
| 1113 | |
| 1114 | reg = PCH_DPLL(pipe); |
| 1115 | val = I915_READ(reg); |
| 1116 | val |= DPLL_VCO_ENABLE; |
| 1117 | I915_WRITE(reg, val); |
| 1118 | POSTING_READ(reg); |
| 1119 | udelay(200); |
| 1120 | } |
| 1121 | |
| 1122 | static void intel_disable_pch_pll(struct drm_i915_private *dev_priv, |
| 1123 | enum pipe pipe) |
| 1124 | { |
| 1125 | int reg; |
| 1126 | u32 val; |
| 1127 | |
| 1128 | /* PCH only available on ILK+ */ |
| 1129 | BUG_ON(dev_priv->info->gen < 5); |
| 1130 | |
| 1131 | /* Make sure transcoder isn't still depending on us */ |
| 1132 | assert_transcoder_disabled(dev_priv, pipe); |
| 1133 | |
| 1134 | reg = PCH_DPLL(pipe); |
| 1135 | val = I915_READ(reg); |
| 1136 | val &= ~DPLL_VCO_ENABLE; |
| 1137 | I915_WRITE(reg, val); |
| 1138 | POSTING_READ(reg); |
| 1139 | udelay(200); |
| 1140 | } |
| 1141 | |
Jesse Barnes | 040484a | 2011-01-03 12:14:26 -0800 | [diff] [blame] | 1142 | static void intel_enable_transcoder(struct drm_i915_private *dev_priv, |
| 1143 | enum pipe pipe) |
| 1144 | { |
| 1145 | int reg; |
| 1146 | u32 val; |
| 1147 | |
| 1148 | /* PCH only available on ILK+ */ |
| 1149 | BUG_ON(dev_priv->info->gen < 5); |
| 1150 | |
| 1151 | /* Make sure PCH DPLL is enabled */ |
| 1152 | assert_pch_pll_enabled(dev_priv, pipe); |
| 1153 | |
| 1154 | /* FDI must be feeding us bits for PCH ports */ |
| 1155 | assert_fdi_tx_enabled(dev_priv, pipe); |
| 1156 | assert_fdi_rx_enabled(dev_priv, pipe); |
| 1157 | |
| 1158 | reg = TRANSCONF(pipe); |
| 1159 | val = I915_READ(reg); |
| 1160 | /* |
| 1161 | * make the BPC in transcoder be consistent with |
| 1162 | * that in pipeconf reg. |
| 1163 | */ |
| 1164 | val &= ~PIPE_BPC_MASK; |
| 1165 | val |= I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK; |
| 1166 | I915_WRITE(reg, val | TRANS_ENABLE); |
| 1167 | if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100)) |
| 1168 | DRM_ERROR("failed to enable transcoder %d\n", pipe); |
| 1169 | } |
| 1170 | |
| 1171 | static void intel_disable_transcoder(struct drm_i915_private *dev_priv, |
| 1172 | enum pipe pipe) |
| 1173 | { |
| 1174 | int reg; |
| 1175 | u32 val; |
| 1176 | |
| 1177 | /* FDI relies on the transcoder */ |
| 1178 | assert_fdi_tx_disabled(dev_priv, pipe); |
| 1179 | assert_fdi_rx_disabled(dev_priv, pipe); |
| 1180 | |
Jesse Barnes | 291906f | 2011-02-02 12:28:03 -0800 | [diff] [blame] | 1181 | /* Ports must be off as well */ |
| 1182 | assert_pch_ports_disabled(dev_priv, pipe); |
| 1183 | |
Jesse Barnes | 040484a | 2011-01-03 12:14:26 -0800 | [diff] [blame] | 1184 | reg = TRANSCONF(pipe); |
| 1185 | val = I915_READ(reg); |
| 1186 | val &= ~TRANS_ENABLE; |
| 1187 | I915_WRITE(reg, val); |
| 1188 | /* wait for PCH transcoder off, transcoder state */ |
| 1189 | if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50)) |
| 1190 | DRM_ERROR("failed to disable transcoder\n"); |
| 1191 | } |
| 1192 | |
Jesse Barnes | 92f2584 | 2011-01-04 15:09:34 -0800 | [diff] [blame] | 1193 | /** |
Chris Wilson | 309cfea | 2011-01-28 13:54:53 +0000 | [diff] [blame] | 1194 | * intel_enable_pipe - enable a pipe, asserting requirements |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 1195 | * @dev_priv: i915 private structure |
| 1196 | * @pipe: pipe to enable |
Jesse Barnes | 040484a | 2011-01-03 12:14:26 -0800 | [diff] [blame] | 1197 | * @pch_port: on ILK+, is this pipe driving a PCH port or not |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 1198 | * |
| 1199 | * Enable @pipe, making sure that various hardware specific requirements |
| 1200 | * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc. |
| 1201 | * |
| 1202 | * @pipe should be %PIPE_A or %PIPE_B. |
| 1203 | * |
| 1204 | * Will wait until the pipe is actually running (i.e. first vblank) before |
| 1205 | * returning. |
| 1206 | */ |
Jesse Barnes | 040484a | 2011-01-03 12:14:26 -0800 | [diff] [blame] | 1207 | static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, |
| 1208 | bool pch_port) |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 1209 | { |
| 1210 | int reg; |
| 1211 | u32 val; |
| 1212 | |
| 1213 | /* |
| 1214 | * A pipe without a PLL won't actually be able to drive bits from |
| 1215 | * a plane. On ILK+ the pipe PLLs are integrated, so we don't |
| 1216 | * need the check. |
| 1217 | */ |
| 1218 | if (!HAS_PCH_SPLIT(dev_priv->dev)) |
| 1219 | assert_pll_enabled(dev_priv, pipe); |
Jesse Barnes | 040484a | 2011-01-03 12:14:26 -0800 | [diff] [blame] | 1220 | else { |
| 1221 | if (pch_port) { |
| 1222 | /* if driving the PCH, we need FDI enabled */ |
| 1223 | assert_fdi_rx_pll_enabled(dev_priv, pipe); |
| 1224 | assert_fdi_tx_pll_enabled(dev_priv, pipe); |
| 1225 | } |
| 1226 | /* FIXME: assert CPU port conditions for SNB+ */ |
| 1227 | } |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 1228 | |
| 1229 | reg = PIPECONF(pipe); |
| 1230 | val = I915_READ(reg); |
Chris Wilson | 00d70b1 | 2011-03-17 07:18:29 +0000 | [diff] [blame] | 1231 | if (val & PIPECONF_ENABLE) |
| 1232 | return; |
| 1233 | |
| 1234 | I915_WRITE(reg, val | PIPECONF_ENABLE); |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 1235 | intel_wait_for_vblank(dev_priv->dev, pipe); |
| 1236 | } |
| 1237 | |
| 1238 | /** |
Chris Wilson | 309cfea | 2011-01-28 13:54:53 +0000 | [diff] [blame] | 1239 | * intel_disable_pipe - disable a pipe, asserting requirements |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 1240 | * @dev_priv: i915 private structure |
| 1241 | * @pipe: pipe to disable |
| 1242 | * |
| 1243 | * Disable @pipe, making sure that various hardware specific requirements |
| 1244 | * are met, if applicable, e.g. plane disabled, panel fitter off, etc. |
| 1245 | * |
| 1246 | * @pipe should be %PIPE_A or %PIPE_B. |
| 1247 | * |
| 1248 | * Will wait until the pipe has shut down before returning. |
| 1249 | */ |
| 1250 | static void intel_disable_pipe(struct drm_i915_private *dev_priv, |
| 1251 | enum pipe pipe) |
| 1252 | { |
| 1253 | int reg; |
| 1254 | u32 val; |
| 1255 | |
| 1256 | /* |
| 1257 | * Make sure planes won't keep trying to pump pixels to us, |
| 1258 | * or we might hang the display. |
| 1259 | */ |
| 1260 | assert_planes_disabled(dev_priv, pipe); |
| 1261 | |
| 1262 | /* Don't disable pipe A or pipe A PLLs if needed */ |
| 1263 | if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) |
| 1264 | return; |
| 1265 | |
| 1266 | reg = PIPECONF(pipe); |
| 1267 | val = I915_READ(reg); |
Chris Wilson | 00d70b1 | 2011-03-17 07:18:29 +0000 | [diff] [blame] | 1268 | if ((val & PIPECONF_ENABLE) == 0) |
| 1269 | return; |
| 1270 | |
| 1271 | I915_WRITE(reg, val & ~PIPECONF_ENABLE); |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 1272 | intel_wait_for_pipe_off(dev_priv->dev, pipe); |
| 1273 | } |
| 1274 | |
| 1275 | /** |
| 1276 | * intel_enable_plane - enable a display plane on a given pipe |
| 1277 | * @dev_priv: i915 private structure |
| 1278 | * @plane: plane to enable |
| 1279 | * @pipe: pipe being fed |
| 1280 | * |
| 1281 | * Enable @plane on @pipe, making sure that @pipe is running first. |
| 1282 | */ |
| 1283 | static void intel_enable_plane(struct drm_i915_private *dev_priv, |
| 1284 | enum plane plane, enum pipe pipe) |
| 1285 | { |
| 1286 | int reg; |
| 1287 | u32 val; |
| 1288 | |
| 1289 | /* If the pipe isn't enabled, we can't pump pixels and may hang */ |
| 1290 | assert_pipe_enabled(dev_priv, pipe); |
| 1291 | |
| 1292 | reg = DSPCNTR(plane); |
| 1293 | val = I915_READ(reg); |
Chris Wilson | 00d70b1 | 2011-03-17 07:18:29 +0000 | [diff] [blame] | 1294 | if (val & DISPLAY_PLANE_ENABLE) |
| 1295 | return; |
| 1296 | |
| 1297 | I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 1298 | intel_wait_for_vblank(dev_priv->dev, pipe); |
| 1299 | } |
| 1300 | |
| 1301 | /* |
| 1302 | * Plane regs are double buffered, going from enabled->disabled needs a |
| 1303 | * trigger in order to latch. The display address reg provides this. |
| 1304 | */ |
| 1305 | static void intel_flush_display_plane(struct drm_i915_private *dev_priv, |
| 1306 | enum plane plane) |
| 1307 | { |
| 1308 | u32 reg = DSPADDR(plane); |
| 1309 | I915_WRITE(reg, I915_READ(reg)); |
| 1310 | } |
| 1311 | |
| 1312 | /** |
| 1313 | * intel_disable_plane - disable a display plane |
| 1314 | * @dev_priv: i915 private structure |
| 1315 | * @plane: plane to disable |
| 1316 | * @pipe: pipe consuming the data |
| 1317 | * |
| 1318 | * Disable @plane; should be an independent operation. |
| 1319 | */ |
| 1320 | static void intel_disable_plane(struct drm_i915_private *dev_priv, |
| 1321 | enum plane plane, enum pipe pipe) |
| 1322 | { |
| 1323 | int reg; |
| 1324 | u32 val; |
| 1325 | |
| 1326 | reg = DSPCNTR(plane); |
| 1327 | val = I915_READ(reg); |
Chris Wilson | 00d70b1 | 2011-03-17 07:18:29 +0000 | [diff] [blame] | 1328 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
| 1329 | return; |
| 1330 | |
| 1331 | I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 1332 | intel_flush_display_plane(dev_priv, plane); |
| 1333 | intel_wait_for_vblank(dev_priv->dev, pipe); |
| 1334 | } |
| 1335 | |
Jesse Barnes | 47a05ec | 2011-02-07 13:46:40 -0800 | [diff] [blame] | 1336 | static void disable_pch_dp(struct drm_i915_private *dev_priv, |
| 1337 | enum pipe pipe, int reg) |
| 1338 | { |
| 1339 | u32 val = I915_READ(reg); |
| 1340 | if (DP_PIPE_ENABLED(val, pipe)) |
| 1341 | I915_WRITE(reg, val & ~DP_PORT_EN); |
| 1342 | } |
| 1343 | |
| 1344 | static void disable_pch_hdmi(struct drm_i915_private *dev_priv, |
| 1345 | enum pipe pipe, int reg) |
| 1346 | { |
| 1347 | u32 val = I915_READ(reg); |
| 1348 | if (HDMI_PIPE_ENABLED(val, pipe)) |
| 1349 | I915_WRITE(reg, val & ~PORT_ENABLE); |
| 1350 | } |
| 1351 | |
| 1352 | /* Disable any ports connected to this transcoder */ |
| 1353 | static void intel_disable_pch_ports(struct drm_i915_private *dev_priv, |
| 1354 | enum pipe pipe) |
| 1355 | { |
| 1356 | u32 reg, val; |
| 1357 | |
| 1358 | val = I915_READ(PCH_PP_CONTROL); |
| 1359 | I915_WRITE(PCH_PP_CONTROL, val | PANEL_UNLOCK_REGS); |
| 1360 | |
| 1361 | disable_pch_dp(dev_priv, pipe, PCH_DP_B); |
| 1362 | disable_pch_dp(dev_priv, pipe, PCH_DP_C); |
| 1363 | disable_pch_dp(dev_priv, pipe, PCH_DP_D); |
| 1364 | |
| 1365 | reg = PCH_ADPA; |
| 1366 | val = I915_READ(reg); |
| 1367 | if (ADPA_PIPE_ENABLED(val, pipe)) |
| 1368 | I915_WRITE(reg, val & ~ADPA_DAC_ENABLE); |
| 1369 | |
| 1370 | reg = PCH_LVDS; |
| 1371 | val = I915_READ(reg); |
| 1372 | if (LVDS_PIPE_ENABLED(val, pipe)) { |
| 1373 | I915_WRITE(reg, val & ~LVDS_PORT_EN); |
| 1374 | POSTING_READ(reg); |
| 1375 | udelay(100); |
| 1376 | } |
| 1377 | |
| 1378 | disable_pch_hdmi(dev_priv, pipe, HDMIB); |
| 1379 | disable_pch_hdmi(dev_priv, pipe, HDMIC); |
| 1380 | disable_pch_hdmi(dev_priv, pipe, HDMID); |
| 1381 | } |
| 1382 | |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1383 | static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
| 1384 | { |
| 1385 | struct drm_device *dev = crtc->dev; |
| 1386 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1387 | struct drm_framebuffer *fb = crtc->fb; |
| 1388 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1389 | struct drm_i915_gem_object *obj = intel_fb->obj; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1390 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 1391 | int plane, i; |
| 1392 | u32 fbc_ctl, fbc_ctl2; |
| 1393 | |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1394 | if (fb->pitch == dev_priv->cfb_pitch && |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1395 | obj->fence_reg == dev_priv->cfb_fence && |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1396 | intel_crtc->plane == dev_priv->cfb_plane && |
| 1397 | I915_READ(FBC_CONTROL) & FBC_CTL_EN) |
| 1398 | return; |
| 1399 | |
| 1400 | i8xx_disable_fbc(dev); |
| 1401 | |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1402 | dev_priv->cfb_pitch = dev_priv->cfb_size / FBC_LL_SIZE; |
| 1403 | |
| 1404 | if (fb->pitch < dev_priv->cfb_pitch) |
| 1405 | dev_priv->cfb_pitch = fb->pitch; |
| 1406 | |
| 1407 | /* FBC_CTL wants 64B units */ |
| 1408 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1409 | dev_priv->cfb_fence = obj->fence_reg; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1410 | dev_priv->cfb_plane = intel_crtc->plane; |
| 1411 | plane = dev_priv->cfb_plane == 0 ? FBC_CTL_PLANEA : FBC_CTL_PLANEB; |
| 1412 | |
| 1413 | /* Clear old tags */ |
| 1414 | for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++) |
| 1415 | I915_WRITE(FBC_TAG + (i * 4), 0); |
| 1416 | |
| 1417 | /* Set it up... */ |
| 1418 | fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | plane; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1419 | if (obj->tiling_mode != I915_TILING_NONE) |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1420 | fbc_ctl2 |= FBC_CTL_CPU_FENCE; |
| 1421 | I915_WRITE(FBC_CONTROL2, fbc_ctl2); |
| 1422 | I915_WRITE(FBC_FENCE_OFF, crtc->y); |
| 1423 | |
| 1424 | /* enable it... */ |
| 1425 | fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC; |
Jesse Barnes | ee25df2 | 2010-02-06 10:41:53 -0800 | [diff] [blame] | 1426 | if (IS_I945GM(dev)) |
Priit Laes | 4967790 | 2010-03-02 11:37:00 +0200 | [diff] [blame] | 1427 | fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */ |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1428 | fbc_ctl |= (dev_priv->cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT; |
| 1429 | fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1430 | if (obj->tiling_mode != I915_TILING_NONE) |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1431 | fbc_ctl |= dev_priv->cfb_fence; |
| 1432 | I915_WRITE(FBC_CONTROL, fbc_ctl); |
| 1433 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1434 | DRM_DEBUG_KMS("enabled FBC, pitch %ld, yoff %d, plane %d, ", |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1435 | dev_priv->cfb_pitch, crtc->y, dev_priv->cfb_plane); |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1436 | } |
| 1437 | |
| 1438 | void i8xx_disable_fbc(struct drm_device *dev) |
| 1439 | { |
| 1440 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1441 | u32 fbc_ctl; |
| 1442 | |
| 1443 | /* Disable compression */ |
| 1444 | fbc_ctl = I915_READ(FBC_CONTROL); |
Chris Wilson | a5cad62 | 2010-09-22 13:15:10 +0100 | [diff] [blame] | 1445 | if ((fbc_ctl & FBC_CTL_EN) == 0) |
| 1446 | return; |
| 1447 | |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1448 | fbc_ctl &= ~FBC_CTL_EN; |
| 1449 | I915_WRITE(FBC_CONTROL, fbc_ctl); |
| 1450 | |
| 1451 | /* Wait for compressing bit to clear */ |
Chris Wilson | 481b6af | 2010-08-23 17:43:35 +0100 | [diff] [blame] | 1452 | if (wait_for((I915_READ(FBC_STATUS) & FBC_STAT_COMPRESSING) == 0, 10)) { |
Chris Wilson | 913d8d1 | 2010-08-07 11:01:35 +0100 | [diff] [blame] | 1453 | DRM_DEBUG_KMS("FBC idle timed out\n"); |
| 1454 | return; |
Jesse Barnes | 9517a92 | 2010-05-21 09:40:45 -0700 | [diff] [blame] | 1455 | } |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1456 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1457 | DRM_DEBUG_KMS("disabled FBC\n"); |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1458 | } |
| 1459 | |
Adam Jackson | ee5382a | 2010-04-23 11:17:39 -0400 | [diff] [blame] | 1460 | static bool i8xx_fbc_enabled(struct drm_device *dev) |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1461 | { |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1462 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1463 | |
| 1464 | return I915_READ(FBC_CONTROL) & FBC_CTL_EN; |
| 1465 | } |
| 1466 | |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1467 | static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
| 1468 | { |
| 1469 | struct drm_device *dev = crtc->dev; |
| 1470 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1471 | struct drm_framebuffer *fb = crtc->fb; |
| 1472 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1473 | struct drm_i915_gem_object *obj = intel_fb->obj; |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1474 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1475 | int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB; |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1476 | unsigned long stall_watermark = 200; |
| 1477 | u32 dpfc_ctl; |
| 1478 | |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1479 | dpfc_ctl = I915_READ(DPFC_CONTROL); |
| 1480 | if (dpfc_ctl & DPFC_CTL_EN) { |
| 1481 | if (dev_priv->cfb_pitch == dev_priv->cfb_pitch / 64 - 1 && |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1482 | dev_priv->cfb_fence == obj->fence_reg && |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1483 | dev_priv->cfb_plane == intel_crtc->plane && |
| 1484 | dev_priv->cfb_y == crtc->y) |
| 1485 | return; |
| 1486 | |
| 1487 | I915_WRITE(DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN); |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1488 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
| 1489 | } |
| 1490 | |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1491 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1492 | dev_priv->cfb_fence = obj->fence_reg; |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1493 | dev_priv->cfb_plane = intel_crtc->plane; |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1494 | dev_priv->cfb_y = crtc->y; |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1495 | |
| 1496 | dpfc_ctl = plane | DPFC_SR_EN | DPFC_CTL_LIMIT_1X; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1497 | if (obj->tiling_mode != I915_TILING_NONE) { |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1498 | dpfc_ctl |= DPFC_CTL_FENCE_EN | dev_priv->cfb_fence; |
| 1499 | I915_WRITE(DPFC_CHICKEN, DPFC_HT_MODIFY); |
| 1500 | } else { |
| 1501 | I915_WRITE(DPFC_CHICKEN, ~DPFC_HT_MODIFY); |
| 1502 | } |
| 1503 | |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1504 | I915_WRITE(DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN | |
| 1505 | (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) | |
| 1506 | (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT)); |
| 1507 | I915_WRITE(DPFC_FENCE_YOFF, crtc->y); |
| 1508 | |
| 1509 | /* enable it... */ |
| 1510 | I915_WRITE(DPFC_CONTROL, I915_READ(DPFC_CONTROL) | DPFC_CTL_EN); |
| 1511 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1512 | DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane); |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1513 | } |
| 1514 | |
| 1515 | void g4x_disable_fbc(struct drm_device *dev) |
| 1516 | { |
| 1517 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1518 | u32 dpfc_ctl; |
| 1519 | |
| 1520 | /* Disable compression */ |
| 1521 | dpfc_ctl = I915_READ(DPFC_CONTROL); |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1522 | if (dpfc_ctl & DPFC_CTL_EN) { |
| 1523 | dpfc_ctl &= ~DPFC_CTL_EN; |
| 1524 | I915_WRITE(DPFC_CONTROL, dpfc_ctl); |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1525 | |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1526 | DRM_DEBUG_KMS("disabled FBC\n"); |
| 1527 | } |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1528 | } |
| 1529 | |
Adam Jackson | ee5382a | 2010-04-23 11:17:39 -0400 | [diff] [blame] | 1530 | static bool g4x_fbc_enabled(struct drm_device *dev) |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1531 | { |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 1532 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1533 | |
| 1534 | return I915_READ(DPFC_CONTROL) & DPFC_CTL_EN; |
| 1535 | } |
| 1536 | |
Jesse Barnes | 4efe070 | 2011-01-18 11:25:41 -0800 | [diff] [blame] | 1537 | static void sandybridge_blit_fbc_update(struct drm_device *dev) |
| 1538 | { |
| 1539 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1540 | u32 blt_ecoskpd; |
| 1541 | |
| 1542 | /* Make sure blitter notifies FBC of writes */ |
Ben Widawsky | fcca792 | 2011-04-25 11:23:07 -0700 | [diff] [blame] | 1543 | gen6_gt_force_wake_get(dev_priv); |
Jesse Barnes | 4efe070 | 2011-01-18 11:25:41 -0800 | [diff] [blame] | 1544 | blt_ecoskpd = I915_READ(GEN6_BLITTER_ECOSKPD); |
| 1545 | blt_ecoskpd |= GEN6_BLITTER_FBC_NOTIFY << |
| 1546 | GEN6_BLITTER_LOCK_SHIFT; |
| 1547 | I915_WRITE(GEN6_BLITTER_ECOSKPD, blt_ecoskpd); |
| 1548 | blt_ecoskpd |= GEN6_BLITTER_FBC_NOTIFY; |
| 1549 | I915_WRITE(GEN6_BLITTER_ECOSKPD, blt_ecoskpd); |
| 1550 | blt_ecoskpd &= ~(GEN6_BLITTER_FBC_NOTIFY << |
| 1551 | GEN6_BLITTER_LOCK_SHIFT); |
| 1552 | I915_WRITE(GEN6_BLITTER_ECOSKPD, blt_ecoskpd); |
| 1553 | POSTING_READ(GEN6_BLITTER_ECOSKPD); |
Ben Widawsky | fcca792 | 2011-04-25 11:23:07 -0700 | [diff] [blame] | 1554 | gen6_gt_force_wake_put(dev_priv); |
Jesse Barnes | 4efe070 | 2011-01-18 11:25:41 -0800 | [diff] [blame] | 1555 | } |
| 1556 | |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1557 | static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
| 1558 | { |
| 1559 | struct drm_device *dev = crtc->dev; |
| 1560 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1561 | struct drm_framebuffer *fb = crtc->fb; |
| 1562 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1563 | struct drm_i915_gem_object *obj = intel_fb->obj; |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1564 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1565 | int plane = intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB; |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1566 | unsigned long stall_watermark = 200; |
| 1567 | u32 dpfc_ctl; |
| 1568 | |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1569 | dpfc_ctl = I915_READ(ILK_DPFC_CONTROL); |
| 1570 | if (dpfc_ctl & DPFC_CTL_EN) { |
| 1571 | if (dev_priv->cfb_pitch == dev_priv->cfb_pitch / 64 - 1 && |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1572 | dev_priv->cfb_fence == obj->fence_reg && |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1573 | dev_priv->cfb_plane == intel_crtc->plane && |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1574 | dev_priv->cfb_offset == obj->gtt_offset && |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1575 | dev_priv->cfb_y == crtc->y) |
| 1576 | return; |
| 1577 | |
| 1578 | I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN); |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1579 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
| 1580 | } |
| 1581 | |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1582 | dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1583 | dev_priv->cfb_fence = obj->fence_reg; |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1584 | dev_priv->cfb_plane = intel_crtc->plane; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1585 | dev_priv->cfb_offset = obj->gtt_offset; |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1586 | dev_priv->cfb_y = crtc->y; |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1587 | |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1588 | dpfc_ctl &= DPFC_RESERVED; |
| 1589 | dpfc_ctl |= (plane | DPFC_CTL_LIMIT_1X); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1590 | if (obj->tiling_mode != I915_TILING_NONE) { |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1591 | dpfc_ctl |= (DPFC_CTL_FENCE_EN | dev_priv->cfb_fence); |
| 1592 | I915_WRITE(ILK_DPFC_CHICKEN, DPFC_HT_MODIFY); |
| 1593 | } else { |
| 1594 | I915_WRITE(ILK_DPFC_CHICKEN, ~DPFC_HT_MODIFY); |
| 1595 | } |
| 1596 | |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1597 | I915_WRITE(ILK_DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN | |
| 1598 | (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) | |
| 1599 | (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT)); |
| 1600 | I915_WRITE(ILK_DPFC_FENCE_YOFF, crtc->y); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1601 | I915_WRITE(ILK_FBC_RT_BASE, obj->gtt_offset | ILK_FBC_RT_VALID); |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1602 | /* enable it... */ |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1603 | I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN); |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1604 | |
Yuanhan Liu | 9c04f01 | 2010-12-15 15:42:32 +0800 | [diff] [blame] | 1605 | if (IS_GEN6(dev)) { |
| 1606 | I915_WRITE(SNB_DPFC_CTL_SA, |
| 1607 | SNB_CPU_FENCE_ENABLE | dev_priv->cfb_fence); |
| 1608 | I915_WRITE(DPFC_CPU_FENCE_OFFSET, crtc->y); |
Jesse Barnes | 4efe070 | 2011-01-18 11:25:41 -0800 | [diff] [blame] | 1609 | sandybridge_blit_fbc_update(dev); |
Yuanhan Liu | 9c04f01 | 2010-12-15 15:42:32 +0800 | [diff] [blame] | 1610 | } |
| 1611 | |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1612 | DRM_DEBUG_KMS("enabled fbc on plane %d\n", intel_crtc->plane); |
| 1613 | } |
| 1614 | |
| 1615 | void ironlake_disable_fbc(struct drm_device *dev) |
| 1616 | { |
| 1617 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1618 | u32 dpfc_ctl; |
| 1619 | |
| 1620 | /* Disable compression */ |
| 1621 | dpfc_ctl = I915_READ(ILK_DPFC_CONTROL); |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1622 | if (dpfc_ctl & DPFC_CTL_EN) { |
| 1623 | dpfc_ctl &= ~DPFC_CTL_EN; |
| 1624 | I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl); |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1625 | |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1626 | DRM_DEBUG_KMS("disabled FBC\n"); |
| 1627 | } |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 1628 | } |
| 1629 | |
| 1630 | static bool ironlake_fbc_enabled(struct drm_device *dev) |
| 1631 | { |
| 1632 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1633 | |
| 1634 | return I915_READ(ILK_DPFC_CONTROL) & DPFC_CTL_EN; |
| 1635 | } |
| 1636 | |
Adam Jackson | ee5382a | 2010-04-23 11:17:39 -0400 | [diff] [blame] | 1637 | bool intel_fbc_enabled(struct drm_device *dev) |
| 1638 | { |
| 1639 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1640 | |
| 1641 | if (!dev_priv->display.fbc_enabled) |
| 1642 | return false; |
| 1643 | |
| 1644 | return dev_priv->display.fbc_enabled(dev); |
| 1645 | } |
| 1646 | |
| 1647 | void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval) |
| 1648 | { |
| 1649 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
| 1650 | |
| 1651 | if (!dev_priv->display.enable_fbc) |
| 1652 | return; |
| 1653 | |
| 1654 | dev_priv->display.enable_fbc(crtc, interval); |
| 1655 | } |
| 1656 | |
| 1657 | void intel_disable_fbc(struct drm_device *dev) |
| 1658 | { |
| 1659 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1660 | |
| 1661 | if (!dev_priv->display.disable_fbc) |
| 1662 | return; |
| 1663 | |
| 1664 | dev_priv->display.disable_fbc(dev); |
| 1665 | } |
| 1666 | |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1667 | /** |
| 1668 | * intel_update_fbc - enable/disable FBC as needed |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1669 | * @dev: the drm_device |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1670 | * |
| 1671 | * Set up the framebuffer compression hardware at mode set time. We |
| 1672 | * enable it if possible: |
| 1673 | * - plane A only (on pre-965) |
| 1674 | * - no pixel mulitply/line duplication |
| 1675 | * - no alpha buffer discard |
| 1676 | * - no dual wide |
| 1677 | * - framebuffer <= 2048 in width, 1536 in height |
| 1678 | * |
| 1679 | * We can't assume that any compression will take place (worst case), |
| 1680 | * so the compressed buffer has to be the same size as the uncompressed |
| 1681 | * one. It also must reside (along with the line length buffer) in |
| 1682 | * stolen memory. |
| 1683 | * |
| 1684 | * We need to enable/disable FBC on a global basis. |
| 1685 | */ |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1686 | static void intel_update_fbc(struct drm_device *dev) |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1687 | { |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1688 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1689 | struct drm_crtc *crtc = NULL, *tmp_crtc; |
| 1690 | struct intel_crtc *intel_crtc; |
| 1691 | struct drm_framebuffer *fb; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1692 | struct intel_framebuffer *intel_fb; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1693 | struct drm_i915_gem_object *obj; |
Jesse Barnes | 9c928d1 | 2010-07-23 15:20:00 -0700 | [diff] [blame] | 1694 | |
| 1695 | DRM_DEBUG_KMS("\n"); |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1696 | |
| 1697 | if (!i915_powersave) |
| 1698 | return; |
| 1699 | |
Adam Jackson | ee5382a | 2010-04-23 11:17:39 -0400 | [diff] [blame] | 1700 | if (!I915_HAS_FBC(dev)) |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 1701 | return; |
| 1702 | |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1703 | /* |
| 1704 | * If FBC is already on, we just have to verify that we can |
| 1705 | * keep it that way... |
| 1706 | * Need to disable if: |
Jesse Barnes | 9c928d1 | 2010-07-23 15:20:00 -0700 | [diff] [blame] | 1707 | * - more than one pipe is active |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1708 | * - changing FBC params (stride, fence, mode) |
| 1709 | * - new fb is too large to fit in compressed buffer |
| 1710 | * - going to an unsupported config (interlace, pixel multiply, etc.) |
| 1711 | */ |
Jesse Barnes | 9c928d1 | 2010-07-23 15:20:00 -0700 | [diff] [blame] | 1712 | list_for_each_entry(tmp_crtc, &dev->mode_config.crtc_list, head) { |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 1713 | if (tmp_crtc->enabled && tmp_crtc->fb) { |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1714 | if (crtc) { |
| 1715 | DRM_DEBUG_KMS("more than one pipe active, disabling compression\n"); |
| 1716 | dev_priv->no_fbc_reason = FBC_MULTIPLE_PIPES; |
| 1717 | goto out_disable; |
| 1718 | } |
| 1719 | crtc = tmp_crtc; |
| 1720 | } |
Jesse Barnes | 9c928d1 | 2010-07-23 15:20:00 -0700 | [diff] [blame] | 1721 | } |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1722 | |
| 1723 | if (!crtc || crtc->fb == NULL) { |
| 1724 | DRM_DEBUG_KMS("no output, disabling\n"); |
| 1725 | dev_priv->no_fbc_reason = FBC_NO_OUTPUT; |
Jesse Barnes | 9c928d1 | 2010-07-23 15:20:00 -0700 | [diff] [blame] | 1726 | goto out_disable; |
| 1727 | } |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1728 | |
| 1729 | intel_crtc = to_intel_crtc(crtc); |
| 1730 | fb = crtc->fb; |
| 1731 | intel_fb = to_intel_framebuffer(fb); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1732 | obj = intel_fb->obj; |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1733 | |
Jesse Barnes | c1a9f04 | 2011-05-05 15:24:21 -0700 | [diff] [blame] | 1734 | if (!i915_enable_fbc) { |
| 1735 | DRM_DEBUG_KMS("fbc disabled per module param (default off)\n"); |
| 1736 | dev_priv->no_fbc_reason = FBC_MODULE_PARAM; |
| 1737 | goto out_disable; |
| 1738 | } |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1739 | if (intel_fb->obj->base.size > dev_priv->cfb_size) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1740 | DRM_DEBUG_KMS("framebuffer too large, disabling " |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1741 | "compression\n"); |
Jesse Barnes | b5e50c3 | 2010-02-05 12:42:41 -0800 | [diff] [blame] | 1742 | dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1743 | goto out_disable; |
| 1744 | } |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1745 | if ((crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) || |
| 1746 | (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN)) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1747 | DRM_DEBUG_KMS("mode incompatible with compression, " |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1748 | "disabling\n"); |
Jesse Barnes | b5e50c3 | 2010-02-05 12:42:41 -0800 | [diff] [blame] | 1749 | dev_priv->no_fbc_reason = FBC_UNSUPPORTED_MODE; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1750 | goto out_disable; |
| 1751 | } |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1752 | if ((crtc->mode.hdisplay > 2048) || |
| 1753 | (crtc->mode.vdisplay > 1536)) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1754 | DRM_DEBUG_KMS("mode too large for compression, disabling\n"); |
Jesse Barnes | b5e50c3 | 2010-02-05 12:42:41 -0800 | [diff] [blame] | 1755 | dev_priv->no_fbc_reason = FBC_MODE_TOO_LARGE; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1756 | goto out_disable; |
| 1757 | } |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1758 | if ((IS_I915GM(dev) || IS_I945GM(dev)) && intel_crtc->plane != 0) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1759 | DRM_DEBUG_KMS("plane not 0, disabling compression\n"); |
Jesse Barnes | b5e50c3 | 2010-02-05 12:42:41 -0800 | [diff] [blame] | 1760 | dev_priv->no_fbc_reason = FBC_BAD_PLANE; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1761 | goto out_disable; |
| 1762 | } |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1763 | if (obj->tiling_mode != I915_TILING_X) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1764 | DRM_DEBUG_KMS("framebuffer not tiled, disabling compression\n"); |
Jesse Barnes | b5e50c3 | 2010-02-05 12:42:41 -0800 | [diff] [blame] | 1765 | dev_priv->no_fbc_reason = FBC_NOT_TILED; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1766 | goto out_disable; |
| 1767 | } |
| 1768 | |
Jason Wessel | c924b93 | 2010-08-05 09:22:32 -0500 | [diff] [blame] | 1769 | /* If the kernel debugger is active, always disable compression */ |
| 1770 | if (in_dbg_master()) |
| 1771 | goto out_disable; |
| 1772 | |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1773 | intel_enable_fbc(crtc, 500); |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1774 | return; |
| 1775 | |
| 1776 | out_disable: |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1777 | /* Multiple disables should be harmless */ |
Chris Wilson | a939406 | 2010-05-27 13:18:16 +0100 | [diff] [blame] | 1778 | if (intel_fbc_enabled(dev)) { |
| 1779 | DRM_DEBUG_KMS("unsupported config, disabling FBC\n"); |
Adam Jackson | ee5382a | 2010-04-23 11:17:39 -0400 | [diff] [blame] | 1780 | intel_disable_fbc(dev); |
Chris Wilson | a939406 | 2010-05-27 13:18:16 +0100 | [diff] [blame] | 1781 | } |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 1782 | } |
| 1783 | |
Chris Wilson | 127bd2a | 2010-07-23 23:32:05 +0100 | [diff] [blame] | 1784 | int |
Chris Wilson | 48b956c | 2010-09-14 12:50:34 +0100 | [diff] [blame] | 1785 | intel_pin_and_fence_fb_obj(struct drm_device *dev, |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1786 | struct drm_i915_gem_object *obj, |
Chris Wilson | 919926a | 2010-11-12 13:42:53 +0000 | [diff] [blame] | 1787 | struct intel_ring_buffer *pipelined) |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 1788 | { |
Chris Wilson | ce453d8 | 2011-02-21 14:43:56 +0000 | [diff] [blame] | 1789 | struct drm_i915_private *dev_priv = dev->dev_private; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 1790 | u32 alignment; |
| 1791 | int ret; |
| 1792 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1793 | switch (obj->tiling_mode) { |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 1794 | case I915_TILING_NONE: |
Chris Wilson | 534843d | 2010-07-05 18:01:46 +0100 | [diff] [blame] | 1795 | if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) |
| 1796 | alignment = 128 * 1024; |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 1797 | else if (INTEL_INFO(dev)->gen >= 4) |
Chris Wilson | 534843d | 2010-07-05 18:01:46 +0100 | [diff] [blame] | 1798 | alignment = 4 * 1024; |
| 1799 | else |
| 1800 | alignment = 64 * 1024; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 1801 | break; |
| 1802 | case I915_TILING_X: |
| 1803 | /* pin() will align the object as required by fence */ |
| 1804 | alignment = 0; |
| 1805 | break; |
| 1806 | case I915_TILING_Y: |
| 1807 | /* FIXME: Is this true? */ |
| 1808 | DRM_ERROR("Y tiled not allowed for scan out buffers\n"); |
| 1809 | return -EINVAL; |
| 1810 | default: |
| 1811 | BUG(); |
| 1812 | } |
| 1813 | |
Chris Wilson | ce453d8 | 2011-02-21 14:43:56 +0000 | [diff] [blame] | 1814 | dev_priv->mm.interruptible = false; |
Daniel Vetter | 75e9e91 | 2010-11-04 17:11:09 +0100 | [diff] [blame] | 1815 | ret = i915_gem_object_pin(obj, alignment, true); |
Chris Wilson | 48b956c | 2010-09-14 12:50:34 +0100 | [diff] [blame] | 1816 | if (ret) |
Chris Wilson | ce453d8 | 2011-02-21 14:43:56 +0000 | [diff] [blame] | 1817 | goto err_interruptible; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 1818 | |
Chris Wilson | 48b956c | 2010-09-14 12:50:34 +0100 | [diff] [blame] | 1819 | ret = i915_gem_object_set_to_display_plane(obj, pipelined); |
| 1820 | if (ret) |
| 1821 | goto err_unpin; |
Chris Wilson | 7213342 | 2010-09-13 23:56:38 +0100 | [diff] [blame] | 1822 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 1823 | /* Install a fence for tiled scan-out. Pre-i965 always needs a |
| 1824 | * fence, whereas 965+ only requires a fence if using |
| 1825 | * framebuffer compression. For simplicity, we always install |
| 1826 | * a fence as the cost is not that onerous. |
| 1827 | */ |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1828 | if (obj->tiling_mode != I915_TILING_NONE) { |
Chris Wilson | ce453d8 | 2011-02-21 14:43:56 +0000 | [diff] [blame] | 1829 | ret = i915_gem_object_get_fence(obj, pipelined); |
Chris Wilson | 48b956c | 2010-09-14 12:50:34 +0100 | [diff] [blame] | 1830 | if (ret) |
| 1831 | goto err_unpin; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 1832 | } |
| 1833 | |
Chris Wilson | ce453d8 | 2011-02-21 14:43:56 +0000 | [diff] [blame] | 1834 | dev_priv->mm.interruptible = true; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 1835 | return 0; |
Chris Wilson | 48b956c | 2010-09-14 12:50:34 +0100 | [diff] [blame] | 1836 | |
| 1837 | err_unpin: |
| 1838 | i915_gem_object_unpin(obj); |
Chris Wilson | ce453d8 | 2011-02-21 14:43:56 +0000 | [diff] [blame] | 1839 | err_interruptible: |
| 1840 | dev_priv->mm.interruptible = true; |
Chris Wilson | 48b956c | 2010-09-14 12:50:34 +0100 | [diff] [blame] | 1841 | return ret; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 1842 | } |
| 1843 | |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1844 | /* Assume fb object is pinned & idle & fenced and just update base pointers */ |
| 1845 | static int |
| 1846 | intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, |
Jason Wessel | 21c74a8 | 2010-10-13 14:09:44 -0500 | [diff] [blame] | 1847 | int x, int y, enum mode_set_atomic state) |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1848 | { |
| 1849 | struct drm_device *dev = crtc->dev; |
| 1850 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1851 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 1852 | struct intel_framebuffer *intel_fb; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1853 | struct drm_i915_gem_object *obj; |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1854 | int plane = intel_crtc->plane; |
| 1855 | unsigned long Start, Offset; |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1856 | u32 dspcntr; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1857 | u32 reg; |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1858 | |
| 1859 | switch (plane) { |
| 1860 | case 0: |
| 1861 | case 1: |
| 1862 | break; |
| 1863 | default: |
| 1864 | DRM_ERROR("Can't update plane %d in SAREA\n", plane); |
| 1865 | return -EINVAL; |
| 1866 | } |
| 1867 | |
| 1868 | intel_fb = to_intel_framebuffer(fb); |
| 1869 | obj = intel_fb->obj; |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1870 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1871 | reg = DSPCNTR(plane); |
| 1872 | dspcntr = I915_READ(reg); |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1873 | /* Mask out pixel format bits in case we change it */ |
| 1874 | dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; |
| 1875 | switch (fb->bits_per_pixel) { |
| 1876 | case 8: |
| 1877 | dspcntr |= DISPPLANE_8BPP; |
| 1878 | break; |
| 1879 | case 16: |
| 1880 | if (fb->depth == 15) |
| 1881 | dspcntr |= DISPPLANE_15_16BPP; |
| 1882 | else |
| 1883 | dspcntr |= DISPPLANE_16BPP; |
| 1884 | break; |
| 1885 | case 24: |
| 1886 | case 32: |
| 1887 | dspcntr |= DISPPLANE_32BPP_NO_ALPHA; |
| 1888 | break; |
| 1889 | default: |
| 1890 | DRM_ERROR("Unknown color depth\n"); |
| 1891 | return -EINVAL; |
| 1892 | } |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 1893 | if (INTEL_INFO(dev)->gen >= 4) { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1894 | if (obj->tiling_mode != I915_TILING_NONE) |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1895 | dspcntr |= DISPPLANE_TILED; |
| 1896 | else |
| 1897 | dspcntr &= ~DISPPLANE_TILED; |
| 1898 | } |
| 1899 | |
Chris Wilson | 4e6cfef | 2010-08-08 13:20:19 +0100 | [diff] [blame] | 1900 | if (HAS_PCH_SPLIT(dev)) |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1901 | /* must disable */ |
| 1902 | dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; |
| 1903 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1904 | I915_WRITE(reg, dspcntr); |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1905 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1906 | Start = obj->gtt_offset; |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1907 | Offset = y * fb->pitch + x * (fb->bits_per_pixel / 8); |
| 1908 | |
Chris Wilson | 4e6cfef | 2010-08-08 13:20:19 +0100 | [diff] [blame] | 1909 | DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n", |
| 1910 | Start, Offset, x, y, fb->pitch); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1911 | I915_WRITE(DSPSTRIDE(plane), fb->pitch); |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 1912 | if (INTEL_INFO(dev)->gen >= 4) { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1913 | I915_WRITE(DSPSURF(plane), Start); |
| 1914 | I915_WRITE(DSPTILEOFF(plane), (y << 16) | x); |
| 1915 | I915_WRITE(DSPADDR(plane), Offset); |
| 1916 | } else |
| 1917 | I915_WRITE(DSPADDR(plane), Start + Offset); |
| 1918 | POSTING_READ(reg); |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1919 | |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 1920 | intel_update_fbc(dev); |
Daniel Vetter | 3dec009 | 2010-08-20 21:40:52 +0200 | [diff] [blame] | 1921 | intel_increase_pllclock(crtc); |
Jesse Barnes | 8125556 | 2010-08-02 12:07:50 -0700 | [diff] [blame] | 1922 | |
| 1923 | return 0; |
| 1924 | } |
| 1925 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 1926 | static int |
Kristian Høgsberg | 3c4fdcf | 2008-12-17 22:14:46 -0500 | [diff] [blame] | 1927 | intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, |
| 1928 | struct drm_framebuffer *old_fb) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1929 | { |
| 1930 | struct drm_device *dev = crtc->dev; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1931 | struct drm_i915_master_private *master_priv; |
| 1932 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 1933 | int ret; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1934 | |
| 1935 | /* no fb bound */ |
| 1936 | if (!crtc->fb) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1937 | DRM_DEBUG_KMS("No FB bound\n"); |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 1938 | return 0; |
| 1939 | } |
| 1940 | |
Chris Wilson | 265db95 | 2010-09-20 15:41:01 +0100 | [diff] [blame] | 1941 | switch (intel_crtc->plane) { |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 1942 | case 0: |
| 1943 | case 1: |
| 1944 | break; |
| 1945 | default: |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 1946 | return -EINVAL; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1947 | } |
| 1948 | |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 1949 | mutex_lock(&dev->struct_mutex); |
Chris Wilson | 265db95 | 2010-09-20 15:41:01 +0100 | [diff] [blame] | 1950 | ret = intel_pin_and_fence_fb_obj(dev, |
| 1951 | to_intel_framebuffer(crtc->fb)->obj, |
Chris Wilson | 919926a | 2010-11-12 13:42:53 +0000 | [diff] [blame] | 1952 | NULL); |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 1953 | if (ret != 0) { |
| 1954 | mutex_unlock(&dev->struct_mutex); |
| 1955 | return ret; |
| 1956 | } |
Kristian Høgsberg | 3c4fdcf | 2008-12-17 22:14:46 -0500 | [diff] [blame] | 1957 | |
Chris Wilson | 265db95 | 2010-09-20 15:41:01 +0100 | [diff] [blame] | 1958 | if (old_fb) { |
Chris Wilson | e6c3a2a | 2010-09-23 23:04:43 +0100 | [diff] [blame] | 1959 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1960 | struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; |
Chris Wilson | 265db95 | 2010-09-20 15:41:01 +0100 | [diff] [blame] | 1961 | |
Chris Wilson | e6c3a2a | 2010-09-23 23:04:43 +0100 | [diff] [blame] | 1962 | wait_event(dev_priv->pending_flip_queue, |
Chris Wilson | 01eec72 | 2011-02-11 20:47:45 +0000 | [diff] [blame] | 1963 | atomic_read(&dev_priv->mm.wedged) || |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1964 | atomic_read(&obj->pending_flip) == 0); |
Chris Wilson | 8534551 | 2010-11-13 09:49:11 +0000 | [diff] [blame] | 1965 | |
| 1966 | /* Big Hammer, we also need to ensure that any pending |
| 1967 | * MI_WAIT_FOR_EVENT inside a user batch buffer on the |
| 1968 | * current scanout is retired before unpinning the old |
| 1969 | * framebuffer. |
Chris Wilson | 01eec72 | 2011-02-11 20:47:45 +0000 | [diff] [blame] | 1970 | * |
| 1971 | * This should only fail upon a hung GPU, in which case we |
| 1972 | * can safely continue. |
Chris Wilson | 8534551 | 2010-11-13 09:49:11 +0000 | [diff] [blame] | 1973 | */ |
Chris Wilson | ce453d8 | 2011-02-21 14:43:56 +0000 | [diff] [blame] | 1974 | ret = i915_gem_object_flush_gpu(obj); |
Chris Wilson | 01eec72 | 2011-02-11 20:47:45 +0000 | [diff] [blame] | 1975 | (void) ret; |
Chris Wilson | 265db95 | 2010-09-20 15:41:01 +0100 | [diff] [blame] | 1976 | } |
| 1977 | |
Jason Wessel | 21c74a8 | 2010-10-13 14:09:44 -0500 | [diff] [blame] | 1978 | ret = intel_pipe_set_base_atomic(crtc, crtc->fb, x, y, |
| 1979 | LEAVE_ATOMIC_MODE_SET); |
Chris Wilson | 4e6cfef | 2010-08-08 13:20:19 +0100 | [diff] [blame] | 1980 | if (ret) { |
Chris Wilson | 265db95 | 2010-09-20 15:41:01 +0100 | [diff] [blame] | 1981 | i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj); |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 1982 | mutex_unlock(&dev->struct_mutex); |
Chris Wilson | 4e6cfef | 2010-08-08 13:20:19 +0100 | [diff] [blame] | 1983 | return ret; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1984 | } |
Kristian Høgsberg | 3c4fdcf | 2008-12-17 22:14:46 -0500 | [diff] [blame] | 1985 | |
Chris Wilson | b7f1de2 | 2010-12-14 16:09:31 +0000 | [diff] [blame] | 1986 | if (old_fb) { |
| 1987 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
Chris Wilson | 265db95 | 2010-09-20 15:41:01 +0100 | [diff] [blame] | 1988 | i915_gem_object_unpin(to_intel_framebuffer(old_fb)->obj); |
Chris Wilson | b7f1de2 | 2010-12-14 16:09:31 +0000 | [diff] [blame] | 1989 | } |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 1990 | |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 1991 | mutex_unlock(&dev->struct_mutex); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1992 | |
| 1993 | if (!dev->primary->master) |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 1994 | return 0; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1995 | |
| 1996 | master_priv = dev->primary->master->driver_priv; |
| 1997 | if (!master_priv->sarea_priv) |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 1998 | return 0; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1999 | |
Chris Wilson | 265db95 | 2010-09-20 15:41:01 +0100 | [diff] [blame] | 2000 | if (intel_crtc->pipe) { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2001 | master_priv->sarea_priv->pipeB_x = x; |
| 2002 | master_priv->sarea_priv->pipeB_y = y; |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 2003 | } else { |
| 2004 | master_priv->sarea_priv->pipeA_x = x; |
| 2005 | master_priv->sarea_priv->pipeA_y = y; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2006 | } |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 2007 | |
| 2008 | return 0; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2009 | } |
| 2010 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2011 | static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock) |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 2012 | { |
| 2013 | struct drm_device *dev = crtc->dev; |
| 2014 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2015 | u32 dpa_ctl; |
| 2016 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 2017 | DRM_DEBUG_KMS("eDP PLL enable for clock %d\n", clock); |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 2018 | dpa_ctl = I915_READ(DP_A); |
| 2019 | dpa_ctl &= ~DP_PLL_FREQ_MASK; |
| 2020 | |
| 2021 | if (clock < 200000) { |
| 2022 | u32 temp; |
| 2023 | dpa_ctl |= DP_PLL_FREQ_160MHZ; |
| 2024 | /* workaround for 160Mhz: |
| 2025 | 1) program 0x4600c bits 15:0 = 0x8124 |
| 2026 | 2) program 0x46010 bit 0 = 1 |
| 2027 | 3) program 0x46034 bit 24 = 1 |
| 2028 | 4) program 0x64000 bit 14 = 1 |
| 2029 | */ |
| 2030 | temp = I915_READ(0x4600c); |
| 2031 | temp &= 0xffff0000; |
| 2032 | I915_WRITE(0x4600c, temp | 0x8124); |
| 2033 | |
| 2034 | temp = I915_READ(0x46010); |
| 2035 | I915_WRITE(0x46010, temp | 1); |
| 2036 | |
| 2037 | temp = I915_READ(0x46034); |
| 2038 | I915_WRITE(0x46034, temp | (1 << 24)); |
| 2039 | } else { |
| 2040 | dpa_ctl |= DP_PLL_FREQ_270MHZ; |
| 2041 | } |
| 2042 | I915_WRITE(DP_A, dpa_ctl); |
| 2043 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2044 | POSTING_READ(DP_A); |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 2045 | udelay(500); |
| 2046 | } |
| 2047 | |
Zhenyu Wang | 5e84e1a | 2010-10-28 16:38:08 +0800 | [diff] [blame] | 2048 | static void intel_fdi_normal_train(struct drm_crtc *crtc) |
| 2049 | { |
| 2050 | struct drm_device *dev = crtc->dev; |
| 2051 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2052 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2053 | int pipe = intel_crtc->pipe; |
| 2054 | u32 reg, temp; |
| 2055 | |
| 2056 | /* enable normal train */ |
| 2057 | reg = FDI_TX_CTL(pipe); |
| 2058 | temp = I915_READ(reg); |
Keith Packard | 61e499b | 2011-05-17 16:13:52 -0700 | [diff] [blame] | 2059 | if (IS_IVYBRIDGE(dev)) { |
Jesse Barnes | 357555c | 2011-04-28 15:09:55 -0700 | [diff] [blame] | 2060 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
| 2061 | temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE; |
Keith Packard | 61e499b | 2011-05-17 16:13:52 -0700 | [diff] [blame] | 2062 | } else { |
| 2063 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2064 | temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE; |
Jesse Barnes | 357555c | 2011-04-28 15:09:55 -0700 | [diff] [blame] | 2065 | } |
Zhenyu Wang | 5e84e1a | 2010-10-28 16:38:08 +0800 | [diff] [blame] | 2066 | I915_WRITE(reg, temp); |
| 2067 | |
| 2068 | reg = FDI_RX_CTL(pipe); |
| 2069 | temp = I915_READ(reg); |
| 2070 | if (HAS_PCH_CPT(dev)) { |
| 2071 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
| 2072 | temp |= FDI_LINK_TRAIN_NORMAL_CPT; |
| 2073 | } else { |
| 2074 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2075 | temp |= FDI_LINK_TRAIN_NONE; |
| 2076 | } |
| 2077 | I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); |
| 2078 | |
| 2079 | /* wait one idle pattern time */ |
| 2080 | POSTING_READ(reg); |
| 2081 | udelay(1000); |
Jesse Barnes | 357555c | 2011-04-28 15:09:55 -0700 | [diff] [blame] | 2082 | |
| 2083 | /* IVB wants error correction enabled */ |
| 2084 | if (IS_IVYBRIDGE(dev)) |
| 2085 | I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE | |
| 2086 | FDI_FE_ERRC_ENABLE); |
Zhenyu Wang | 5e84e1a | 2010-10-28 16:38:08 +0800 | [diff] [blame] | 2087 | } |
| 2088 | |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2089 | /* The FDI link training functions for ILK/Ibexpeak. */ |
| 2090 | static void ironlake_fdi_link_train(struct drm_crtc *crtc) |
| 2091 | { |
| 2092 | struct drm_device *dev = crtc->dev; |
| 2093 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2094 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2095 | int pipe = intel_crtc->pipe; |
Jesse Barnes | 0fc932b | 2011-01-04 15:09:37 -0800 | [diff] [blame] | 2096 | int plane = intel_crtc->plane; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2097 | u32 reg, temp, tries; |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2098 | |
Jesse Barnes | 0fc932b | 2011-01-04 15:09:37 -0800 | [diff] [blame] | 2099 | /* FDI needs bits from pipe & plane first */ |
| 2100 | assert_pipe_enabled(dev_priv, pipe); |
| 2101 | assert_plane_enabled(dev_priv, plane); |
| 2102 | |
Adam Jackson | e1a4474 | 2010-06-25 15:32:14 -0400 | [diff] [blame] | 2103 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
| 2104 | for train result */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2105 | reg = FDI_RX_IMR(pipe); |
| 2106 | temp = I915_READ(reg); |
Adam Jackson | e1a4474 | 2010-06-25 15:32:14 -0400 | [diff] [blame] | 2107 | temp &= ~FDI_RX_SYMBOL_LOCK; |
| 2108 | temp &= ~FDI_RX_BIT_LOCK; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2109 | I915_WRITE(reg, temp); |
| 2110 | I915_READ(reg); |
Adam Jackson | e1a4474 | 2010-06-25 15:32:14 -0400 | [diff] [blame] | 2111 | udelay(150); |
| 2112 | |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2113 | /* enable CPU FDI TX and PCH FDI RX */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2114 | reg = FDI_TX_CTL(pipe); |
| 2115 | temp = I915_READ(reg); |
Adam Jackson | 77ffb59 | 2010-04-12 11:38:44 -0400 | [diff] [blame] | 2116 | temp &= ~(7 << 19); |
| 2117 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2118 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2119 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2120 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2121 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2122 | reg = FDI_RX_CTL(pipe); |
| 2123 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2124 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2125 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2126 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
| 2127 | |
| 2128 | POSTING_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2129 | udelay(150); |
| 2130 | |
Jesse Barnes | 5b2adf8 | 2010-10-07 16:01:15 -0700 | [diff] [blame] | 2131 | /* Ironlake workaround, enable clock pointer after FDI enable*/ |
Jesse Barnes | 6f06ce1 | 2011-01-04 15:09:38 -0800 | [diff] [blame] | 2132 | if (HAS_PCH_IBX(dev)) { |
| 2133 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
| 2134 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR | |
| 2135 | FDI_RX_PHASE_SYNC_POINTER_EN); |
| 2136 | } |
Jesse Barnes | 5b2adf8 | 2010-10-07 16:01:15 -0700 | [diff] [blame] | 2137 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2138 | reg = FDI_RX_IIR(pipe); |
Adam Jackson | e1a4474 | 2010-06-25 15:32:14 -0400 | [diff] [blame] | 2139 | for (tries = 0; tries < 5; tries++) { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2140 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2141 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
| 2142 | |
| 2143 | if ((temp & FDI_RX_BIT_LOCK)) { |
| 2144 | DRM_DEBUG_KMS("FDI train 1 done.\n"); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2145 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2146 | break; |
| 2147 | } |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2148 | } |
Adam Jackson | e1a4474 | 2010-06-25 15:32:14 -0400 | [diff] [blame] | 2149 | if (tries == 5) |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2150 | DRM_ERROR("FDI train 1 fail!\n"); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2151 | |
| 2152 | /* Train 2 */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2153 | reg = FDI_TX_CTL(pipe); |
| 2154 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2155 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2156 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2157 | I915_WRITE(reg, temp); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2158 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2159 | reg = FDI_RX_CTL(pipe); |
| 2160 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2161 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2162 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2163 | I915_WRITE(reg, temp); |
| 2164 | |
| 2165 | POSTING_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2166 | udelay(150); |
| 2167 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2168 | reg = FDI_RX_IIR(pipe); |
Adam Jackson | e1a4474 | 2010-06-25 15:32:14 -0400 | [diff] [blame] | 2169 | for (tries = 0; tries < 5; tries++) { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2170 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2171 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
| 2172 | |
| 2173 | if (temp & FDI_RX_SYMBOL_LOCK) { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2174 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2175 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
| 2176 | break; |
| 2177 | } |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2178 | } |
Adam Jackson | e1a4474 | 2010-06-25 15:32:14 -0400 | [diff] [blame] | 2179 | if (tries == 5) |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2180 | DRM_ERROR("FDI train 2 fail!\n"); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2181 | |
| 2182 | DRM_DEBUG_KMS("FDI train done\n"); |
Jesse Barnes | 5c5313c | 2010-10-07 16:01:11 -0700 | [diff] [blame] | 2183 | |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2184 | } |
| 2185 | |
Chris Wilson | 311bd68 | 2011-01-13 19:06:50 +0000 | [diff] [blame] | 2186 | static const int snb_b_fdi_train_param [] = { |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2187 | FDI_LINK_TRAIN_400MV_0DB_SNB_B, |
| 2188 | FDI_LINK_TRAIN_400MV_6DB_SNB_B, |
| 2189 | FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, |
| 2190 | FDI_LINK_TRAIN_800MV_0DB_SNB_B, |
| 2191 | }; |
| 2192 | |
| 2193 | /* The FDI link training functions for SNB/Cougarpoint. */ |
| 2194 | static void gen6_fdi_link_train(struct drm_crtc *crtc) |
| 2195 | { |
| 2196 | struct drm_device *dev = crtc->dev; |
| 2197 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2198 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2199 | int pipe = intel_crtc->pipe; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2200 | u32 reg, temp, i; |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2201 | |
Adam Jackson | e1a4474 | 2010-06-25 15:32:14 -0400 | [diff] [blame] | 2202 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
| 2203 | for train result */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2204 | reg = FDI_RX_IMR(pipe); |
| 2205 | temp = I915_READ(reg); |
Adam Jackson | e1a4474 | 2010-06-25 15:32:14 -0400 | [diff] [blame] | 2206 | temp &= ~FDI_RX_SYMBOL_LOCK; |
| 2207 | temp &= ~FDI_RX_BIT_LOCK; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2208 | I915_WRITE(reg, temp); |
| 2209 | |
| 2210 | POSTING_READ(reg); |
Adam Jackson | e1a4474 | 2010-06-25 15:32:14 -0400 | [diff] [blame] | 2211 | udelay(150); |
| 2212 | |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2213 | /* enable CPU FDI TX and PCH FDI RX */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2214 | reg = FDI_TX_CTL(pipe); |
| 2215 | temp = I915_READ(reg); |
Adam Jackson | 77ffb59 | 2010-04-12 11:38:44 -0400 | [diff] [blame] | 2216 | temp &= ~(7 << 19); |
| 2217 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2218 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2219 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
| 2220 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
| 2221 | /* SNB-B */ |
| 2222 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2223 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2224 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2225 | reg = FDI_RX_CTL(pipe); |
| 2226 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2227 | if (HAS_PCH_CPT(dev)) { |
| 2228 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
| 2229 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
| 2230 | } else { |
| 2231 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2232 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
| 2233 | } |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2234 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
| 2235 | |
| 2236 | POSTING_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2237 | udelay(150); |
| 2238 | |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2239 | for (i = 0; i < 4; i++ ) { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2240 | reg = FDI_TX_CTL(pipe); |
| 2241 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2242 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
| 2243 | temp |= snb_b_fdi_train_param[i]; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2244 | I915_WRITE(reg, temp); |
| 2245 | |
| 2246 | POSTING_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2247 | udelay(500); |
| 2248 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2249 | reg = FDI_RX_IIR(pipe); |
| 2250 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2251 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
| 2252 | |
| 2253 | if (temp & FDI_RX_BIT_LOCK) { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2254 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2255 | DRM_DEBUG_KMS("FDI train 1 done.\n"); |
| 2256 | break; |
| 2257 | } |
| 2258 | } |
| 2259 | if (i == 4) |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2260 | DRM_ERROR("FDI train 1 fail!\n"); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2261 | |
| 2262 | /* Train 2 */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2263 | reg = FDI_TX_CTL(pipe); |
| 2264 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2265 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2266 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
| 2267 | if (IS_GEN6(dev)) { |
| 2268 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
| 2269 | /* SNB-B */ |
| 2270 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
| 2271 | } |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2272 | I915_WRITE(reg, temp); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2273 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2274 | reg = FDI_RX_CTL(pipe); |
| 2275 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2276 | if (HAS_PCH_CPT(dev)) { |
| 2277 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
| 2278 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; |
| 2279 | } else { |
| 2280 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2281 | temp |= FDI_LINK_TRAIN_PATTERN_2; |
| 2282 | } |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2283 | I915_WRITE(reg, temp); |
| 2284 | |
| 2285 | POSTING_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2286 | udelay(150); |
| 2287 | |
| 2288 | for (i = 0; i < 4; i++ ) { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2289 | reg = FDI_TX_CTL(pipe); |
| 2290 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2291 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
| 2292 | temp |= snb_b_fdi_train_param[i]; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2293 | I915_WRITE(reg, temp); |
| 2294 | |
| 2295 | POSTING_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2296 | udelay(500); |
| 2297 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2298 | reg = FDI_RX_IIR(pipe); |
| 2299 | temp = I915_READ(reg); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2300 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
| 2301 | |
| 2302 | if (temp & FDI_RX_SYMBOL_LOCK) { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2303 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2304 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
| 2305 | break; |
| 2306 | } |
| 2307 | } |
| 2308 | if (i == 4) |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2309 | DRM_ERROR("FDI train 2 fail!\n"); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 2310 | |
| 2311 | DRM_DEBUG_KMS("FDI train done.\n"); |
| 2312 | } |
| 2313 | |
Jesse Barnes | 357555c | 2011-04-28 15:09:55 -0700 | [diff] [blame] | 2314 | /* Manual link training for Ivy Bridge A0 parts */ |
| 2315 | static void ivb_manual_fdi_link_train(struct drm_crtc *crtc) |
| 2316 | { |
| 2317 | struct drm_device *dev = crtc->dev; |
| 2318 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2319 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2320 | int pipe = intel_crtc->pipe; |
| 2321 | u32 reg, temp, i; |
| 2322 | |
| 2323 | /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit |
| 2324 | for train result */ |
| 2325 | reg = FDI_RX_IMR(pipe); |
| 2326 | temp = I915_READ(reg); |
| 2327 | temp &= ~FDI_RX_SYMBOL_LOCK; |
| 2328 | temp &= ~FDI_RX_BIT_LOCK; |
| 2329 | I915_WRITE(reg, temp); |
| 2330 | |
| 2331 | POSTING_READ(reg); |
| 2332 | udelay(150); |
| 2333 | |
| 2334 | /* enable CPU FDI TX and PCH FDI RX */ |
| 2335 | reg = FDI_TX_CTL(pipe); |
| 2336 | temp = I915_READ(reg); |
| 2337 | temp &= ~(7 << 19); |
| 2338 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
| 2339 | temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB); |
| 2340 | temp |= FDI_LINK_TRAIN_PATTERN_1_IVB; |
| 2341 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
| 2342 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
| 2343 | I915_WRITE(reg, temp | FDI_TX_ENABLE); |
| 2344 | |
| 2345 | reg = FDI_RX_CTL(pipe); |
| 2346 | temp = I915_READ(reg); |
| 2347 | temp &= ~FDI_LINK_TRAIN_AUTO; |
| 2348 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
| 2349 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
| 2350 | I915_WRITE(reg, temp | FDI_RX_ENABLE); |
| 2351 | |
| 2352 | POSTING_READ(reg); |
| 2353 | udelay(150); |
| 2354 | |
| 2355 | for (i = 0; i < 4; i++ ) { |
| 2356 | reg = FDI_TX_CTL(pipe); |
| 2357 | temp = I915_READ(reg); |
| 2358 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
| 2359 | temp |= snb_b_fdi_train_param[i]; |
| 2360 | I915_WRITE(reg, temp); |
| 2361 | |
| 2362 | POSTING_READ(reg); |
| 2363 | udelay(500); |
| 2364 | |
| 2365 | reg = FDI_RX_IIR(pipe); |
| 2366 | temp = I915_READ(reg); |
| 2367 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
| 2368 | |
| 2369 | if (temp & FDI_RX_BIT_LOCK || |
| 2370 | (I915_READ(reg) & FDI_RX_BIT_LOCK)) { |
| 2371 | I915_WRITE(reg, temp | FDI_RX_BIT_LOCK); |
| 2372 | DRM_DEBUG_KMS("FDI train 1 done.\n"); |
| 2373 | break; |
| 2374 | } |
| 2375 | } |
| 2376 | if (i == 4) |
| 2377 | DRM_ERROR("FDI train 1 fail!\n"); |
| 2378 | |
| 2379 | /* Train 2 */ |
| 2380 | reg = FDI_TX_CTL(pipe); |
| 2381 | temp = I915_READ(reg); |
| 2382 | temp &= ~FDI_LINK_TRAIN_NONE_IVB; |
| 2383 | temp |= FDI_LINK_TRAIN_PATTERN_2_IVB; |
| 2384 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
| 2385 | temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; |
| 2386 | I915_WRITE(reg, temp); |
| 2387 | |
| 2388 | reg = FDI_RX_CTL(pipe); |
| 2389 | temp = I915_READ(reg); |
| 2390 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
| 2391 | temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; |
| 2392 | I915_WRITE(reg, temp); |
| 2393 | |
| 2394 | POSTING_READ(reg); |
| 2395 | udelay(150); |
| 2396 | |
| 2397 | for (i = 0; i < 4; i++ ) { |
| 2398 | reg = FDI_TX_CTL(pipe); |
| 2399 | temp = I915_READ(reg); |
| 2400 | temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; |
| 2401 | temp |= snb_b_fdi_train_param[i]; |
| 2402 | I915_WRITE(reg, temp); |
| 2403 | |
| 2404 | POSTING_READ(reg); |
| 2405 | udelay(500); |
| 2406 | |
| 2407 | reg = FDI_RX_IIR(pipe); |
| 2408 | temp = I915_READ(reg); |
| 2409 | DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); |
| 2410 | |
| 2411 | if (temp & FDI_RX_SYMBOL_LOCK) { |
| 2412 | I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK); |
| 2413 | DRM_DEBUG_KMS("FDI train 2 done.\n"); |
| 2414 | break; |
| 2415 | } |
| 2416 | } |
| 2417 | if (i == 4) |
| 2418 | DRM_ERROR("FDI train 2 fail!\n"); |
| 2419 | |
| 2420 | DRM_DEBUG_KMS("FDI train done.\n"); |
| 2421 | } |
| 2422 | |
| 2423 | static void ironlake_fdi_pll_enable(struct drm_crtc *crtc) |
Jesse Barnes | 0e23b99 | 2010-09-10 11:10:00 -0700 | [diff] [blame] | 2424 | { |
| 2425 | struct drm_device *dev = crtc->dev; |
| 2426 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2427 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2428 | int pipe = intel_crtc->pipe; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2429 | u32 reg, temp; |
Jesse Barnes | 0e23b99 | 2010-09-10 11:10:00 -0700 | [diff] [blame] | 2430 | |
Jesse Barnes | c64e311 | 2010-09-10 11:27:03 -0700 | [diff] [blame] | 2431 | /* Write the TU size bits so error detection works */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2432 | I915_WRITE(FDI_RX_TUSIZE1(pipe), |
| 2433 | I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK); |
Jesse Barnes | c64e311 | 2010-09-10 11:27:03 -0700 | [diff] [blame] | 2434 | |
Jesse Barnes | 0e23b99 | 2010-09-10 11:10:00 -0700 | [diff] [blame] | 2435 | /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2436 | reg = FDI_RX_CTL(pipe); |
| 2437 | temp = I915_READ(reg); |
| 2438 | temp &= ~((0x7 << 19) | (0x7 << 16)); |
Jesse Barnes | 0e23b99 | 2010-09-10 11:10:00 -0700 | [diff] [blame] | 2439 | temp |= (intel_crtc->fdi_lanes - 1) << 19; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2440 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
| 2441 | I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE); |
| 2442 | |
| 2443 | POSTING_READ(reg); |
Jesse Barnes | 0e23b99 | 2010-09-10 11:10:00 -0700 | [diff] [blame] | 2444 | udelay(200); |
| 2445 | |
| 2446 | /* Switch from Rawclk to PCDclk */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2447 | temp = I915_READ(reg); |
| 2448 | I915_WRITE(reg, temp | FDI_PCDCLK); |
| 2449 | |
| 2450 | POSTING_READ(reg); |
Jesse Barnes | 0e23b99 | 2010-09-10 11:10:00 -0700 | [diff] [blame] | 2451 | udelay(200); |
| 2452 | |
| 2453 | /* Enable CPU FDI TX PLL, always on for Ironlake */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2454 | reg = FDI_TX_CTL(pipe); |
| 2455 | temp = I915_READ(reg); |
Jesse Barnes | 0e23b99 | 2010-09-10 11:10:00 -0700 | [diff] [blame] | 2456 | if ((temp & FDI_TX_PLL_ENABLE) == 0) { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2457 | I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE); |
| 2458 | |
| 2459 | POSTING_READ(reg); |
Jesse Barnes | 0e23b99 | 2010-09-10 11:10:00 -0700 | [diff] [blame] | 2460 | udelay(100); |
| 2461 | } |
| 2462 | } |
| 2463 | |
Jesse Barnes | 0fc932b | 2011-01-04 15:09:37 -0800 | [diff] [blame] | 2464 | static void ironlake_fdi_disable(struct drm_crtc *crtc) |
| 2465 | { |
| 2466 | struct drm_device *dev = crtc->dev; |
| 2467 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2468 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2469 | int pipe = intel_crtc->pipe; |
| 2470 | u32 reg, temp; |
| 2471 | |
| 2472 | /* disable CPU FDI tx and PCH FDI rx */ |
| 2473 | reg = FDI_TX_CTL(pipe); |
| 2474 | temp = I915_READ(reg); |
| 2475 | I915_WRITE(reg, temp & ~FDI_TX_ENABLE); |
| 2476 | POSTING_READ(reg); |
| 2477 | |
| 2478 | reg = FDI_RX_CTL(pipe); |
| 2479 | temp = I915_READ(reg); |
| 2480 | temp &= ~(0x7 << 16); |
| 2481 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
| 2482 | I915_WRITE(reg, temp & ~FDI_RX_ENABLE); |
| 2483 | |
| 2484 | POSTING_READ(reg); |
| 2485 | udelay(100); |
| 2486 | |
| 2487 | /* Ironlake workaround, disable clock pointer after downing FDI */ |
Jesse Barnes | 6f06ce1 | 2011-01-04 15:09:38 -0800 | [diff] [blame] | 2488 | if (HAS_PCH_IBX(dev)) { |
| 2489 | I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR); |
Jesse Barnes | 0fc932b | 2011-01-04 15:09:37 -0800 | [diff] [blame] | 2490 | I915_WRITE(FDI_RX_CHICKEN(pipe), |
| 2491 | I915_READ(FDI_RX_CHICKEN(pipe) & |
Jesse Barnes | 6f06ce1 | 2011-01-04 15:09:38 -0800 | [diff] [blame] | 2492 | ~FDI_RX_PHASE_SYNC_POINTER_EN)); |
| 2493 | } |
Jesse Barnes | 0fc932b | 2011-01-04 15:09:37 -0800 | [diff] [blame] | 2494 | |
| 2495 | /* still set train pattern 1 */ |
| 2496 | reg = FDI_TX_CTL(pipe); |
| 2497 | temp = I915_READ(reg); |
| 2498 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2499 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
| 2500 | I915_WRITE(reg, temp); |
| 2501 | |
| 2502 | reg = FDI_RX_CTL(pipe); |
| 2503 | temp = I915_READ(reg); |
| 2504 | if (HAS_PCH_CPT(dev)) { |
| 2505 | temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; |
| 2506 | temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; |
| 2507 | } else { |
| 2508 | temp &= ~FDI_LINK_TRAIN_NONE; |
| 2509 | temp |= FDI_LINK_TRAIN_PATTERN_1; |
| 2510 | } |
| 2511 | /* BPC in FDI rx is consistent with that in PIPECONF */ |
| 2512 | temp &= ~(0x07 << 16); |
| 2513 | temp |= (I915_READ(PIPECONF(pipe)) & PIPE_BPC_MASK) << 11; |
| 2514 | I915_WRITE(reg, temp); |
| 2515 | |
| 2516 | POSTING_READ(reg); |
| 2517 | udelay(100); |
| 2518 | } |
| 2519 | |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2520 | /* |
| 2521 | * When we disable a pipe, we need to clear any pending scanline wait events |
| 2522 | * to avoid hanging the ring, which we assume we are waiting on. |
| 2523 | */ |
| 2524 | static void intel_clear_scanline_wait(struct drm_device *dev) |
| 2525 | { |
| 2526 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 8168bd4 | 2010-11-11 17:54:52 +0000 | [diff] [blame] | 2527 | struct intel_ring_buffer *ring; |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2528 | u32 tmp; |
| 2529 | |
| 2530 | if (IS_GEN2(dev)) |
| 2531 | /* Can't break the hang on i8xx */ |
| 2532 | return; |
| 2533 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2534 | ring = LP_RING(dev_priv); |
Chris Wilson | 8168bd4 | 2010-11-11 17:54:52 +0000 | [diff] [blame] | 2535 | tmp = I915_READ_CTL(ring); |
| 2536 | if (tmp & RING_WAIT) |
| 2537 | I915_WRITE_CTL(ring, tmp); |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2538 | } |
| 2539 | |
Chris Wilson | e6c3a2a | 2010-09-23 23:04:43 +0100 | [diff] [blame] | 2540 | static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) |
| 2541 | { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 2542 | struct drm_i915_gem_object *obj; |
Chris Wilson | e6c3a2a | 2010-09-23 23:04:43 +0100 | [diff] [blame] | 2543 | struct drm_i915_private *dev_priv; |
| 2544 | |
| 2545 | if (crtc->fb == NULL) |
| 2546 | return; |
| 2547 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 2548 | obj = to_intel_framebuffer(crtc->fb)->obj; |
Chris Wilson | e6c3a2a | 2010-09-23 23:04:43 +0100 | [diff] [blame] | 2549 | dev_priv = crtc->dev->dev_private; |
| 2550 | wait_event(dev_priv->pending_flip_queue, |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 2551 | atomic_read(&obj->pending_flip) == 0); |
Chris Wilson | e6c3a2a | 2010-09-23 23:04:43 +0100 | [diff] [blame] | 2552 | } |
| 2553 | |
Jesse Barnes | 040484a | 2011-01-03 12:14:26 -0800 | [diff] [blame] | 2554 | static bool intel_crtc_driving_pch(struct drm_crtc *crtc) |
| 2555 | { |
| 2556 | struct drm_device *dev = crtc->dev; |
| 2557 | struct drm_mode_config *mode_config = &dev->mode_config; |
| 2558 | struct intel_encoder *encoder; |
| 2559 | |
| 2560 | /* |
| 2561 | * If there's a non-PCH eDP on this crtc, it must be DP_A, and that |
| 2562 | * must be driven by its own crtc; no sharing is possible. |
| 2563 | */ |
| 2564 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
| 2565 | if (encoder->base.crtc != crtc) |
| 2566 | continue; |
| 2567 | |
| 2568 | switch (encoder->type) { |
| 2569 | case INTEL_OUTPUT_EDP: |
| 2570 | if (!intel_encoder_is_pch_edp(&encoder->base)) |
| 2571 | return false; |
| 2572 | continue; |
| 2573 | } |
| 2574 | } |
| 2575 | |
| 2576 | return true; |
| 2577 | } |
| 2578 | |
Jesse Barnes | f67a559 | 2011-01-05 10:31:48 -0800 | [diff] [blame] | 2579 | /* |
| 2580 | * Enable PCH resources required for PCH ports: |
| 2581 | * - PCH PLLs |
| 2582 | * - FDI training & RX/TX |
| 2583 | * - update transcoder timings |
| 2584 | * - DP transcoding bits |
| 2585 | * - transcoder |
| 2586 | */ |
| 2587 | static void ironlake_pch_enable(struct drm_crtc *crtc) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2588 | { |
| 2589 | struct drm_device *dev = crtc->dev; |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 2590 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2591 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2592 | int pipe = intel_crtc->pipe; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2593 | u32 reg, temp; |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2594 | |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2595 | /* For PCH output, training FDI link */ |
Jesse Barnes | 674cf96 | 2011-04-28 14:27:04 -0700 | [diff] [blame] | 2596 | dev_priv->display.fdi_link_train(crtc); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2597 | |
Jesse Barnes | 92f2584 | 2011-01-04 15:09:34 -0800 | [diff] [blame] | 2598 | intel_enable_pch_pll(dev_priv, pipe); |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2599 | |
| 2600 | if (HAS_PCH_CPT(dev)) { |
| 2601 | /* Be sure PCH DPLL SEL is set */ |
| 2602 | temp = I915_READ(PCH_DPLL_SEL); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2603 | if (pipe == 0 && (temp & TRANSA_DPLL_ENABLE) == 0) |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2604 | temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2605 | else if (pipe == 1 && (temp & TRANSB_DPLL_ENABLE) == 0) |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2606 | temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
| 2607 | I915_WRITE(PCH_DPLL_SEL, temp); |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2608 | } |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2609 | |
Jesse Barnes | d9b6cb5 | 2011-01-04 15:09:35 -0800 | [diff] [blame] | 2610 | /* set transcoder timing, panel must allow it */ |
| 2611 | assert_panel_unlocked(dev_priv, pipe); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2612 | I915_WRITE(TRANS_HTOTAL(pipe), I915_READ(HTOTAL(pipe))); |
| 2613 | I915_WRITE(TRANS_HBLANK(pipe), I915_READ(HBLANK(pipe))); |
| 2614 | I915_WRITE(TRANS_HSYNC(pipe), I915_READ(HSYNC(pipe))); |
| 2615 | |
| 2616 | I915_WRITE(TRANS_VTOTAL(pipe), I915_READ(VTOTAL(pipe))); |
| 2617 | I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe))); |
| 2618 | I915_WRITE(TRANS_VSYNC(pipe), I915_READ(VSYNC(pipe))); |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2619 | |
Zhenyu Wang | 5e84e1a | 2010-10-28 16:38:08 +0800 | [diff] [blame] | 2620 | intel_fdi_normal_train(crtc); |
| 2621 | |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2622 | /* For PCH DP, enable TRANS_DP_CTL */ |
| 2623 | if (HAS_PCH_CPT(dev) && |
| 2624 | intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2625 | reg = TRANS_DP_CTL(pipe); |
| 2626 | temp = I915_READ(reg); |
| 2627 | temp &= ~(TRANS_DP_PORT_SEL_MASK | |
Eric Anholt | 220cad3 | 2010-11-18 09:32:58 +0800 | [diff] [blame] | 2628 | TRANS_DP_SYNC_MASK | |
| 2629 | TRANS_DP_BPC_MASK); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2630 | temp |= (TRANS_DP_OUTPUT_ENABLE | |
| 2631 | TRANS_DP_ENH_FRAMING); |
Eric Anholt | 220cad3 | 2010-11-18 09:32:58 +0800 | [diff] [blame] | 2632 | temp |= TRANS_DP_8BPC; |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2633 | |
| 2634 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2635 | temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2636 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2637 | temp |= TRANS_DP_VSYNC_ACTIVE_HIGH; |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2638 | |
| 2639 | switch (intel_trans_dp_port_sel(crtc)) { |
| 2640 | case PCH_DP_B: |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2641 | temp |= TRANS_DP_PORT_SEL_B; |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2642 | break; |
| 2643 | case PCH_DP_C: |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2644 | temp |= TRANS_DP_PORT_SEL_C; |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2645 | break; |
| 2646 | case PCH_DP_D: |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2647 | temp |= TRANS_DP_PORT_SEL_D; |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2648 | break; |
| 2649 | default: |
| 2650 | DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2651 | temp |= TRANS_DP_PORT_SEL_B; |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2652 | break; |
| 2653 | } |
| 2654 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2655 | I915_WRITE(reg, temp); |
Jesse Barnes | c98e9dc | 2010-09-10 10:57:18 -0700 | [diff] [blame] | 2656 | } |
| 2657 | |
Jesse Barnes | 040484a | 2011-01-03 12:14:26 -0800 | [diff] [blame] | 2658 | intel_enable_transcoder(dev_priv, pipe); |
Jesse Barnes | f67a559 | 2011-01-05 10:31:48 -0800 | [diff] [blame] | 2659 | } |
| 2660 | |
| 2661 | static void ironlake_crtc_enable(struct drm_crtc *crtc) |
| 2662 | { |
| 2663 | struct drm_device *dev = crtc->dev; |
| 2664 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2665 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2666 | int pipe = intel_crtc->pipe; |
| 2667 | int plane = intel_crtc->plane; |
| 2668 | u32 temp; |
| 2669 | bool is_pch_port; |
| 2670 | |
| 2671 | if (intel_crtc->active) |
| 2672 | return; |
| 2673 | |
| 2674 | intel_crtc->active = true; |
| 2675 | intel_update_watermarks(dev); |
| 2676 | |
| 2677 | if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { |
| 2678 | temp = I915_READ(PCH_LVDS); |
| 2679 | if ((temp & LVDS_PORT_EN) == 0) |
| 2680 | I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); |
| 2681 | } |
| 2682 | |
| 2683 | is_pch_port = intel_crtc_driving_pch(crtc); |
| 2684 | |
| 2685 | if (is_pch_port) |
Jesse Barnes | 357555c | 2011-04-28 15:09:55 -0700 | [diff] [blame] | 2686 | ironlake_fdi_pll_enable(crtc); |
Jesse Barnes | f67a559 | 2011-01-05 10:31:48 -0800 | [diff] [blame] | 2687 | else |
| 2688 | ironlake_fdi_disable(crtc); |
| 2689 | |
| 2690 | /* Enable panel fitting for LVDS */ |
| 2691 | if (dev_priv->pch_pf_size && |
| 2692 | (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || HAS_eDP)) { |
| 2693 | /* Force use of hard-coded filter coefficients |
| 2694 | * as some pre-programmed values are broken, |
| 2695 | * e.g. x201. |
| 2696 | */ |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 2697 | I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); |
| 2698 | I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); |
| 2699 | I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); |
Jesse Barnes | f67a559 | 2011-01-05 10:31:48 -0800 | [diff] [blame] | 2700 | } |
| 2701 | |
Jesse Barnes | 9c54c0d | 2011-06-15 23:32:33 +0200 | [diff] [blame^] | 2702 | /* |
| 2703 | * On ILK+ LUT must be loaded before the pipe is running but with |
| 2704 | * clocks enabled |
| 2705 | */ |
| 2706 | intel_crtc_load_lut(crtc); |
| 2707 | |
Jesse Barnes | f67a559 | 2011-01-05 10:31:48 -0800 | [diff] [blame] | 2708 | intel_enable_pipe(dev_priv, pipe, is_pch_port); |
| 2709 | intel_enable_plane(dev_priv, plane, pipe); |
| 2710 | |
| 2711 | if (is_pch_port) |
| 2712 | ironlake_pch_enable(crtc); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2713 | |
Ben Widawsky | d1ebd81 | 2011-04-25 20:11:50 +0100 | [diff] [blame] | 2714 | mutex_lock(&dev->struct_mutex); |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 2715 | intel_update_fbc(dev); |
Ben Widawsky | d1ebd81 | 2011-04-25 20:11:50 +0100 | [diff] [blame] | 2716 | mutex_unlock(&dev->struct_mutex); |
| 2717 | |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2718 | intel_crtc_update_cursor(crtc, true); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2719 | } |
| 2720 | |
| 2721 | static void ironlake_crtc_disable(struct drm_crtc *crtc) |
| 2722 | { |
| 2723 | struct drm_device *dev = crtc->dev; |
| 2724 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2725 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2726 | int pipe = intel_crtc->pipe; |
| 2727 | int plane = intel_crtc->plane; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2728 | u32 reg, temp; |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2729 | |
Chris Wilson | f7abfe8 | 2010-09-13 14:19:16 +0100 | [diff] [blame] | 2730 | if (!intel_crtc->active) |
| 2731 | return; |
| 2732 | |
Chris Wilson | e6c3a2a | 2010-09-23 23:04:43 +0100 | [diff] [blame] | 2733 | intel_crtc_wait_for_pending_flips(crtc); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2734 | drm_vblank_off(dev, pipe); |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2735 | intel_crtc_update_cursor(crtc, false); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2736 | |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 2737 | intel_disable_plane(dev_priv, plane, pipe); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2738 | |
| 2739 | if (dev_priv->cfb_plane == plane && |
| 2740 | dev_priv->display.disable_fbc) |
| 2741 | dev_priv->display.disable_fbc(dev); |
| 2742 | |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 2743 | intel_disable_pipe(dev_priv, pipe); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2744 | |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2745 | /* Disable PF */ |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 2746 | I915_WRITE(PF_CTL(pipe), 0); |
| 2747 | I915_WRITE(PF_WIN_SZ(pipe), 0); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2748 | |
Jesse Barnes | 0fc932b | 2011-01-04 15:09:37 -0800 | [diff] [blame] | 2749 | ironlake_fdi_disable(crtc); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2750 | |
Jesse Barnes | 47a05ec | 2011-02-07 13:46:40 -0800 | [diff] [blame] | 2751 | /* This is a horrible layering violation; we should be doing this in |
| 2752 | * the connector/encoder ->prepare instead, but we don't always have |
| 2753 | * enough information there about the config to know whether it will |
| 2754 | * actually be necessary or just cause undesired flicker. |
| 2755 | */ |
| 2756 | intel_disable_pch_ports(dev_priv, pipe); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2757 | |
Jesse Barnes | 040484a | 2011-01-03 12:14:26 -0800 | [diff] [blame] | 2758 | intel_disable_transcoder(dev_priv, pipe); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2759 | |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2760 | if (HAS_PCH_CPT(dev)) { |
| 2761 | /* disable TRANS_DP_CTL */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2762 | reg = TRANS_DP_CTL(pipe); |
| 2763 | temp = I915_READ(reg); |
| 2764 | temp &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); |
Eric Anholt | cb3543c | 2011-02-02 12:08:07 -0800 | [diff] [blame] | 2765 | temp |= TRANS_DP_PORT_SEL_NONE; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2766 | I915_WRITE(reg, temp); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2767 | |
| 2768 | /* disable DPLL_SEL */ |
| 2769 | temp = I915_READ(PCH_DPLL_SEL); |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 2770 | switch (pipe) { |
| 2771 | case 0: |
| 2772 | temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL); |
| 2773 | break; |
| 2774 | case 1: |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2775 | temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 2776 | break; |
| 2777 | case 2: |
| 2778 | /* FIXME: manage transcoder PLLs? */ |
| 2779 | temp &= ~(TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL); |
| 2780 | break; |
| 2781 | default: |
| 2782 | BUG(); /* wtf */ |
| 2783 | } |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2784 | I915_WRITE(PCH_DPLL_SEL, temp); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2785 | } |
| 2786 | |
| 2787 | /* disable PCH DPLL */ |
Jesse Barnes | 92f2584 | 2011-01-04 15:09:34 -0800 | [diff] [blame] | 2788 | intel_disable_pch_pll(dev_priv, pipe); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2789 | |
| 2790 | /* Switch from PCDclk to Rawclk */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2791 | reg = FDI_RX_CTL(pipe); |
| 2792 | temp = I915_READ(reg); |
| 2793 | I915_WRITE(reg, temp & ~FDI_PCDCLK); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2794 | |
| 2795 | /* Disable CPU FDI TX PLL */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2796 | reg = FDI_TX_CTL(pipe); |
| 2797 | temp = I915_READ(reg); |
| 2798 | I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE); |
| 2799 | |
| 2800 | POSTING_READ(reg); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2801 | udelay(100); |
| 2802 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2803 | reg = FDI_RX_CTL(pipe); |
| 2804 | temp = I915_READ(reg); |
| 2805 | I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2806 | |
| 2807 | /* Wait for the clocks to turn off. */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2808 | POSTING_READ(reg); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2809 | udelay(100); |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2810 | |
Chris Wilson | f7abfe8 | 2010-09-13 14:19:16 +0100 | [diff] [blame] | 2811 | intel_crtc->active = false; |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2812 | intel_update_watermarks(dev); |
Ben Widawsky | d1ebd81 | 2011-04-25 20:11:50 +0100 | [diff] [blame] | 2813 | |
| 2814 | mutex_lock(&dev->struct_mutex); |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2815 | intel_update_fbc(dev); |
| 2816 | intel_clear_scanline_wait(dev); |
Ben Widawsky | d1ebd81 | 2011-04-25 20:11:50 +0100 | [diff] [blame] | 2817 | mutex_unlock(&dev->struct_mutex); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2818 | } |
| 2819 | |
| 2820 | static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) |
| 2821 | { |
| 2822 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2823 | int pipe = intel_crtc->pipe; |
| 2824 | int plane = intel_crtc->plane; |
| 2825 | |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 2826 | /* XXX: When our outputs are all unaware of DPMS modes other than off |
| 2827 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. |
| 2828 | */ |
| 2829 | switch (mode) { |
| 2830 | case DRM_MODE_DPMS_ON: |
| 2831 | case DRM_MODE_DPMS_STANDBY: |
| 2832 | case DRM_MODE_DPMS_SUSPEND: |
Chris Wilson | 868dc58 | 2010-08-07 11:01:31 +0100 | [diff] [blame] | 2833 | DRM_DEBUG_KMS("crtc %d/%d dpms on\n", pipe, plane); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2834 | ironlake_crtc_enable(crtc); |
Chris Wilson | 868dc58 | 2010-08-07 11:01:31 +0100 | [diff] [blame] | 2835 | break; |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 2836 | |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 2837 | case DRM_MODE_DPMS_OFF: |
Chris Wilson | 868dc58 | 2010-08-07 11:01:31 +0100 | [diff] [blame] | 2838 | DRM_DEBUG_KMS("crtc %d/%d dpms off\n", pipe, plane); |
Jesse Barnes | 6be4a60 | 2010-09-10 10:26:01 -0700 | [diff] [blame] | 2839 | ironlake_crtc_disable(crtc); |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 2840 | break; |
| 2841 | } |
| 2842 | } |
| 2843 | |
Daniel Vetter | 02e792f | 2009-09-15 22:57:34 +0200 | [diff] [blame] | 2844 | static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable) |
| 2845 | { |
Daniel Vetter | 02e792f | 2009-09-15 22:57:34 +0200 | [diff] [blame] | 2846 | if (!enable && intel_crtc->overlay) { |
Chris Wilson | 23f09ce | 2010-08-12 13:53:37 +0100 | [diff] [blame] | 2847 | struct drm_device *dev = intel_crtc->base.dev; |
Chris Wilson | ce453d8 | 2011-02-21 14:43:56 +0000 | [diff] [blame] | 2848 | struct drm_i915_private *dev_priv = dev->dev_private; |
Daniel Vetter | 03f77ea | 2009-09-15 22:57:37 +0200 | [diff] [blame] | 2849 | |
Chris Wilson | 23f09ce | 2010-08-12 13:53:37 +0100 | [diff] [blame] | 2850 | mutex_lock(&dev->struct_mutex); |
Chris Wilson | ce453d8 | 2011-02-21 14:43:56 +0000 | [diff] [blame] | 2851 | dev_priv->mm.interruptible = false; |
| 2852 | (void) intel_overlay_switch_off(intel_crtc->overlay); |
| 2853 | dev_priv->mm.interruptible = true; |
Chris Wilson | 23f09ce | 2010-08-12 13:53:37 +0100 | [diff] [blame] | 2854 | mutex_unlock(&dev->struct_mutex); |
Daniel Vetter | 02e792f | 2009-09-15 22:57:34 +0200 | [diff] [blame] | 2855 | } |
Daniel Vetter | 02e792f | 2009-09-15 22:57:34 +0200 | [diff] [blame] | 2856 | |
Chris Wilson | 5dcdbcb | 2010-08-12 13:50:28 +0100 | [diff] [blame] | 2857 | /* Let userspace switch the overlay on again. In most cases userspace |
| 2858 | * has to recompute where to put it anyway. |
| 2859 | */ |
Daniel Vetter | 02e792f | 2009-09-15 22:57:34 +0200 | [diff] [blame] | 2860 | } |
| 2861 | |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2862 | static void i9xx_crtc_enable(struct drm_crtc *crtc) |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 2863 | { |
| 2864 | struct drm_device *dev = crtc->dev; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2865 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2866 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2867 | int pipe = intel_crtc->pipe; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 2868 | int plane = intel_crtc->plane; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2869 | |
Chris Wilson | f7abfe8 | 2010-09-13 14:19:16 +0100 | [diff] [blame] | 2870 | if (intel_crtc->active) |
| 2871 | return; |
| 2872 | |
| 2873 | intel_crtc->active = true; |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2874 | intel_update_watermarks(dev); |
| 2875 | |
Jesse Barnes | 63d7bbe | 2011-01-04 15:09:33 -0800 | [diff] [blame] | 2876 | intel_enable_pll(dev_priv, pipe); |
Jesse Barnes | 040484a | 2011-01-03 12:14:26 -0800 | [diff] [blame] | 2877 | intel_enable_pipe(dev_priv, pipe, false); |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 2878 | intel_enable_plane(dev_priv, plane, pipe); |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2879 | |
| 2880 | intel_crtc_load_lut(crtc); |
Chris Wilson | bed4a67 | 2010-09-11 10:47:47 +0100 | [diff] [blame] | 2881 | intel_update_fbc(dev); |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2882 | |
| 2883 | /* Give the overlay scaler a chance to enable if it's on this pipe */ |
| 2884 | intel_crtc_dpms_overlay(intel_crtc, true); |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2885 | intel_crtc_update_cursor(crtc, true); |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2886 | } |
| 2887 | |
| 2888 | static void i9xx_crtc_disable(struct drm_crtc *crtc) |
| 2889 | { |
| 2890 | struct drm_device *dev = crtc->dev; |
| 2891 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2892 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2893 | int pipe = intel_crtc->pipe; |
| 2894 | int plane = intel_crtc->plane; |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2895 | |
Chris Wilson | f7abfe8 | 2010-09-13 14:19:16 +0100 | [diff] [blame] | 2896 | if (!intel_crtc->active) |
| 2897 | return; |
| 2898 | |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2899 | /* Give the overlay scaler a chance to disable if it's on this pipe */ |
Chris Wilson | e6c3a2a | 2010-09-23 23:04:43 +0100 | [diff] [blame] | 2900 | intel_crtc_wait_for_pending_flips(crtc); |
| 2901 | drm_vblank_off(dev, pipe); |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2902 | intel_crtc_dpms_overlay(intel_crtc, false); |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2903 | intel_crtc_update_cursor(crtc, false); |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2904 | |
| 2905 | if (dev_priv->cfb_plane == plane && |
| 2906 | dev_priv->display.disable_fbc) |
| 2907 | dev_priv->display.disable_fbc(dev); |
| 2908 | |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 2909 | intel_disable_plane(dev_priv, plane, pipe); |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 2910 | intel_disable_pipe(dev_priv, pipe); |
Jesse Barnes | 63d7bbe | 2011-01-04 15:09:33 -0800 | [diff] [blame] | 2911 | intel_disable_pll(dev_priv, pipe); |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2912 | |
Chris Wilson | f7abfe8 | 2010-09-13 14:19:16 +0100 | [diff] [blame] | 2913 | intel_crtc->active = false; |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 2914 | intel_update_fbc(dev); |
| 2915 | intel_update_watermarks(dev); |
| 2916 | intel_clear_scanline_wait(dev); |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2917 | } |
| 2918 | |
| 2919 | static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) |
| 2920 | { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2921 | /* XXX: When our outputs are all unaware of DPMS modes other than off |
| 2922 | * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. |
| 2923 | */ |
| 2924 | switch (mode) { |
| 2925 | case DRM_MODE_DPMS_ON: |
| 2926 | case DRM_MODE_DPMS_STANDBY: |
| 2927 | case DRM_MODE_DPMS_SUSPEND: |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2928 | i9xx_crtc_enable(crtc); |
| 2929 | break; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2930 | case DRM_MODE_DPMS_OFF: |
Jesse Barnes | 0b8765c6 | 2010-09-10 10:31:34 -0700 | [diff] [blame] | 2931 | i9xx_crtc_disable(crtc); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2932 | break; |
| 2933 | } |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 2934 | } |
| 2935 | |
| 2936 | /** |
| 2937 | * Sets the power management mode of the pipe and plane. |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 2938 | */ |
| 2939 | static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) |
| 2940 | { |
| 2941 | struct drm_device *dev = crtc->dev; |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 2942 | struct drm_i915_private *dev_priv = dev->dev_private; |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 2943 | struct drm_i915_master_private *master_priv; |
| 2944 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 2945 | int pipe = intel_crtc->pipe; |
| 2946 | bool enabled; |
| 2947 | |
Chris Wilson | 032d2a0 | 2010-09-06 16:17:22 +0100 | [diff] [blame] | 2948 | if (intel_crtc->dpms_mode == mode) |
| 2949 | return; |
| 2950 | |
Chris Wilson | debcadd | 2010-08-07 11:01:33 +0100 | [diff] [blame] | 2951 | intel_crtc->dpms_mode = mode; |
Chris Wilson | debcadd | 2010-08-07 11:01:33 +0100 | [diff] [blame] | 2952 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 2953 | dev_priv->display.dpms(crtc, mode); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2954 | |
| 2955 | if (!dev->primary->master) |
| 2956 | return; |
| 2957 | |
| 2958 | master_priv = dev->primary->master->driver_priv; |
| 2959 | if (!master_priv->sarea_priv) |
| 2960 | return; |
| 2961 | |
| 2962 | enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF; |
| 2963 | |
| 2964 | switch (pipe) { |
| 2965 | case 0: |
| 2966 | master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0; |
| 2967 | master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0; |
| 2968 | break; |
| 2969 | case 1: |
| 2970 | master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0; |
| 2971 | master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0; |
| 2972 | break; |
| 2973 | default: |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 2974 | DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe)); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2975 | break; |
| 2976 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 2977 | } |
| 2978 | |
Chris Wilson | cdd5998 | 2010-09-08 16:30:16 +0100 | [diff] [blame] | 2979 | static void intel_crtc_disable(struct drm_crtc *crtc) |
| 2980 | { |
| 2981 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
| 2982 | struct drm_device *dev = crtc->dev; |
| 2983 | |
| 2984 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); |
| 2985 | |
| 2986 | if (crtc->fb) { |
| 2987 | mutex_lock(&dev->struct_mutex); |
| 2988 | i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj); |
| 2989 | mutex_unlock(&dev->struct_mutex); |
| 2990 | } |
| 2991 | } |
| 2992 | |
Jesse Barnes | 7e7d76c | 2010-09-10 10:47:20 -0700 | [diff] [blame] | 2993 | /* Prepare for a mode set. |
| 2994 | * |
| 2995 | * Note we could be a lot smarter here. We need to figure out which outputs |
| 2996 | * will be enabled, which disabled (in short, how the config will changes) |
| 2997 | * and perform the minimum necessary steps to accomplish that, e.g. updating |
| 2998 | * watermarks, FBC configuration, making sure PLLs are programmed correctly, |
| 2999 | * panel fitting is in the proper state, etc. |
| 3000 | */ |
| 3001 | static void i9xx_crtc_prepare(struct drm_crtc *crtc) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3002 | { |
Jesse Barnes | 7e7d76c | 2010-09-10 10:47:20 -0700 | [diff] [blame] | 3003 | i9xx_crtc_disable(crtc); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3004 | } |
| 3005 | |
Jesse Barnes | 7e7d76c | 2010-09-10 10:47:20 -0700 | [diff] [blame] | 3006 | static void i9xx_crtc_commit(struct drm_crtc *crtc) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3007 | { |
Jesse Barnes | 7e7d76c | 2010-09-10 10:47:20 -0700 | [diff] [blame] | 3008 | i9xx_crtc_enable(crtc); |
Jesse Barnes | 7e7d76c | 2010-09-10 10:47:20 -0700 | [diff] [blame] | 3009 | } |
| 3010 | |
| 3011 | static void ironlake_crtc_prepare(struct drm_crtc *crtc) |
| 3012 | { |
Jesse Barnes | 7e7d76c | 2010-09-10 10:47:20 -0700 | [diff] [blame] | 3013 | ironlake_crtc_disable(crtc); |
Jesse Barnes | 7e7d76c | 2010-09-10 10:47:20 -0700 | [diff] [blame] | 3014 | } |
| 3015 | |
| 3016 | static void ironlake_crtc_commit(struct drm_crtc *crtc) |
| 3017 | { |
Jesse Barnes | 7e7d76c | 2010-09-10 10:47:20 -0700 | [diff] [blame] | 3018 | ironlake_crtc_enable(crtc); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3019 | } |
| 3020 | |
| 3021 | void intel_encoder_prepare (struct drm_encoder *encoder) |
| 3022 | { |
| 3023 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; |
| 3024 | /* lvds has its own version of prepare see intel_lvds_prepare */ |
| 3025 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF); |
| 3026 | } |
| 3027 | |
| 3028 | void intel_encoder_commit (struct drm_encoder *encoder) |
| 3029 | { |
| 3030 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; |
| 3031 | /* lvds has its own version of commit see intel_lvds_commit */ |
| 3032 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); |
| 3033 | } |
| 3034 | |
Chris Wilson | ea5b213 | 2010-08-04 13:50:23 +0100 | [diff] [blame] | 3035 | void intel_encoder_destroy(struct drm_encoder *encoder) |
| 3036 | { |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 3037 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
Chris Wilson | ea5b213 | 2010-08-04 13:50:23 +0100 | [diff] [blame] | 3038 | |
Chris Wilson | ea5b213 | 2010-08-04 13:50:23 +0100 | [diff] [blame] | 3039 | drm_encoder_cleanup(encoder); |
| 3040 | kfree(intel_encoder); |
| 3041 | } |
| 3042 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3043 | static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, |
| 3044 | struct drm_display_mode *mode, |
| 3045 | struct drm_display_mode *adjusted_mode) |
| 3046 | { |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 3047 | struct drm_device *dev = crtc->dev; |
Chris Wilson | 8974935 | 2010-09-12 18:25:19 +0100 | [diff] [blame] | 3048 | |
Eric Anholt | bad720f | 2009-10-22 16:11:14 -0700 | [diff] [blame] | 3049 | if (HAS_PCH_SPLIT(dev)) { |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 3050 | /* FDI link clock is fixed at 2.7G */ |
Jesse Barnes | 2377b74 | 2010-07-07 14:06:43 -0700 | [diff] [blame] | 3051 | if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4) |
| 3052 | return false; |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 3053 | } |
Chris Wilson | 8974935 | 2010-09-12 18:25:19 +0100 | [diff] [blame] | 3054 | |
| 3055 | /* XXX some encoders set the crtcinfo, others don't. |
| 3056 | * Obviously we need some form of conflict resolution here... |
| 3057 | */ |
| 3058 | if (adjusted_mode->crtc_htotal == 0) |
| 3059 | drm_mode_set_crtcinfo(adjusted_mode, 0); |
| 3060 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3061 | return true; |
| 3062 | } |
| 3063 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3064 | static int i945_get_display_clock_speed(struct drm_device *dev) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3065 | { |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3066 | return 400000; |
| 3067 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3068 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3069 | static int i915_get_display_clock_speed(struct drm_device *dev) |
| 3070 | { |
| 3071 | return 333000; |
| 3072 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3073 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3074 | static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) |
| 3075 | { |
| 3076 | return 200000; |
| 3077 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3078 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3079 | static int i915gm_get_display_clock_speed(struct drm_device *dev) |
| 3080 | { |
| 3081 | u16 gcfgc = 0; |
| 3082 | |
| 3083 | pci_read_config_word(dev->pdev, GCFGC, &gcfgc); |
| 3084 | |
| 3085 | if (gcfgc & GC_LOW_FREQUENCY_ENABLE) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3086 | return 133000; |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3087 | else { |
| 3088 | switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { |
| 3089 | case GC_DISPLAY_CLOCK_333_MHZ: |
| 3090 | return 333000; |
| 3091 | default: |
| 3092 | case GC_DISPLAY_CLOCK_190_200_MHZ: |
| 3093 | return 190000; |
| 3094 | } |
| 3095 | } |
| 3096 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3097 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3098 | static int i865_get_display_clock_speed(struct drm_device *dev) |
| 3099 | { |
| 3100 | return 266000; |
| 3101 | } |
| 3102 | |
| 3103 | static int i855_get_display_clock_speed(struct drm_device *dev) |
| 3104 | { |
| 3105 | u16 hpllcc = 0; |
| 3106 | /* Assume that the hardware is in the high speed state. This |
| 3107 | * should be the default. |
| 3108 | */ |
| 3109 | switch (hpllcc & GC_CLOCK_CONTROL_MASK) { |
| 3110 | case GC_CLOCK_133_200: |
| 3111 | case GC_CLOCK_100_200: |
| 3112 | return 200000; |
| 3113 | case GC_CLOCK_166_250: |
| 3114 | return 250000; |
| 3115 | case GC_CLOCK_100_133: |
| 3116 | return 133000; |
| 3117 | } |
| 3118 | |
| 3119 | /* Shouldn't happen */ |
| 3120 | return 0; |
| 3121 | } |
| 3122 | |
| 3123 | static int i830_get_display_clock_speed(struct drm_device *dev) |
| 3124 | { |
| 3125 | return 133000; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 3126 | } |
| 3127 | |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 3128 | struct fdi_m_n { |
| 3129 | u32 tu; |
| 3130 | u32 gmch_m; |
| 3131 | u32 gmch_n; |
| 3132 | u32 link_m; |
| 3133 | u32 link_n; |
| 3134 | }; |
| 3135 | |
| 3136 | static void |
| 3137 | fdi_reduce_ratio(u32 *num, u32 *den) |
| 3138 | { |
| 3139 | while (*num > 0xffffff || *den > 0xffffff) { |
| 3140 | *num >>= 1; |
| 3141 | *den >>= 1; |
| 3142 | } |
| 3143 | } |
| 3144 | |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 3145 | static void |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 3146 | ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, |
| 3147 | int link_clock, struct fdi_m_n *m_n) |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 3148 | { |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 3149 | m_n->tu = 64; /* default size */ |
| 3150 | |
Chris Wilson | 22ed111 | 2010-12-04 01:01:29 +0000 | [diff] [blame] | 3151 | /* BUG_ON(pixel_clock > INT_MAX / 36); */ |
| 3152 | m_n->gmch_m = bits_per_pixel * pixel_clock; |
| 3153 | m_n->gmch_n = link_clock * nlanes * 8; |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 3154 | fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); |
| 3155 | |
Chris Wilson | 22ed111 | 2010-12-04 01:01:29 +0000 | [diff] [blame] | 3156 | m_n->link_m = pixel_clock; |
| 3157 | m_n->link_n = link_clock; |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 3158 | fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); |
| 3159 | } |
| 3160 | |
| 3161 | |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3162 | struct intel_watermark_params { |
| 3163 | unsigned long fifo_size; |
| 3164 | unsigned long max_wm; |
| 3165 | unsigned long default_wm; |
| 3166 | unsigned long guard_size; |
| 3167 | unsigned long cacheline_size; |
| 3168 | }; |
| 3169 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 3170 | /* Pineview has different values for various configs */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3171 | static const struct intel_watermark_params pineview_display_wm = { |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 3172 | PINEVIEW_DISPLAY_FIFO, |
| 3173 | PINEVIEW_MAX_WM, |
| 3174 | PINEVIEW_DFT_WM, |
| 3175 | PINEVIEW_GUARD_WM, |
| 3176 | PINEVIEW_FIFO_LINE_SIZE |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3177 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3178 | static const struct intel_watermark_params pineview_display_hplloff_wm = { |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 3179 | PINEVIEW_DISPLAY_FIFO, |
| 3180 | PINEVIEW_MAX_WM, |
| 3181 | PINEVIEW_DFT_HPLLOFF_WM, |
| 3182 | PINEVIEW_GUARD_WM, |
| 3183 | PINEVIEW_FIFO_LINE_SIZE |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3184 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3185 | static const struct intel_watermark_params pineview_cursor_wm = { |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 3186 | PINEVIEW_CURSOR_FIFO, |
| 3187 | PINEVIEW_CURSOR_MAX_WM, |
| 3188 | PINEVIEW_CURSOR_DFT_WM, |
| 3189 | PINEVIEW_CURSOR_GUARD_WM, |
| 3190 | PINEVIEW_FIFO_LINE_SIZE, |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3191 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3192 | static const struct intel_watermark_params pineview_cursor_hplloff_wm = { |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 3193 | PINEVIEW_CURSOR_FIFO, |
| 3194 | PINEVIEW_CURSOR_MAX_WM, |
| 3195 | PINEVIEW_CURSOR_DFT_WM, |
| 3196 | PINEVIEW_CURSOR_GUARD_WM, |
| 3197 | PINEVIEW_FIFO_LINE_SIZE |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3198 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3199 | static const struct intel_watermark_params g4x_wm_info = { |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3200 | G4X_FIFO_SIZE, |
| 3201 | G4X_MAX_WM, |
| 3202 | G4X_MAX_WM, |
| 3203 | 2, |
| 3204 | G4X_FIFO_LINE_SIZE, |
| 3205 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3206 | static const struct intel_watermark_params g4x_cursor_wm_info = { |
Zhao Yakui | 4fe5e61 | 2010-06-12 14:32:25 +0800 | [diff] [blame] | 3207 | I965_CURSOR_FIFO, |
| 3208 | I965_CURSOR_MAX_WM, |
| 3209 | I965_CURSOR_DFT_WM, |
| 3210 | 2, |
| 3211 | G4X_FIFO_LINE_SIZE, |
| 3212 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3213 | static const struct intel_watermark_params i965_cursor_wm_info = { |
Zhao Yakui | 4fe5e61 | 2010-06-12 14:32:25 +0800 | [diff] [blame] | 3214 | I965_CURSOR_FIFO, |
| 3215 | I965_CURSOR_MAX_WM, |
| 3216 | I965_CURSOR_DFT_WM, |
| 3217 | 2, |
| 3218 | I915_FIFO_LINE_SIZE, |
| 3219 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3220 | static const struct intel_watermark_params i945_wm_info = { |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3221 | I945_FIFO_SIZE, |
| 3222 | I915_MAX_WM, |
| 3223 | 1, |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3224 | 2, |
| 3225 | I915_FIFO_LINE_SIZE |
| 3226 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3227 | static const struct intel_watermark_params i915_wm_info = { |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3228 | I915_FIFO_SIZE, |
| 3229 | I915_MAX_WM, |
| 3230 | 1, |
| 3231 | 2, |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3232 | I915_FIFO_LINE_SIZE |
| 3233 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3234 | static const struct intel_watermark_params i855_wm_info = { |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3235 | I855GM_FIFO_SIZE, |
| 3236 | I915_MAX_WM, |
| 3237 | 1, |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3238 | 2, |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3239 | I830_FIFO_LINE_SIZE |
| 3240 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3241 | static const struct intel_watermark_params i830_wm_info = { |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3242 | I830_FIFO_SIZE, |
| 3243 | I915_MAX_WM, |
| 3244 | 1, |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3245 | 2, |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3246 | I830_FIFO_LINE_SIZE |
| 3247 | }; |
| 3248 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3249 | static const struct intel_watermark_params ironlake_display_wm_info = { |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 3250 | ILK_DISPLAY_FIFO, |
| 3251 | ILK_DISPLAY_MAXWM, |
| 3252 | ILK_DISPLAY_DFTWM, |
| 3253 | 2, |
| 3254 | ILK_FIFO_LINE_SIZE |
| 3255 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3256 | static const struct intel_watermark_params ironlake_cursor_wm_info = { |
Zhao Yakui | c936f44 | 2010-06-12 14:32:26 +0800 | [diff] [blame] | 3257 | ILK_CURSOR_FIFO, |
| 3258 | ILK_CURSOR_MAXWM, |
| 3259 | ILK_CURSOR_DFTWM, |
| 3260 | 2, |
| 3261 | ILK_FIFO_LINE_SIZE |
| 3262 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3263 | static const struct intel_watermark_params ironlake_display_srwm_info = { |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 3264 | ILK_DISPLAY_SR_FIFO, |
| 3265 | ILK_DISPLAY_MAX_SRWM, |
| 3266 | ILK_DISPLAY_DFT_SRWM, |
| 3267 | 2, |
| 3268 | ILK_FIFO_LINE_SIZE |
| 3269 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3270 | static const struct intel_watermark_params ironlake_cursor_srwm_info = { |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 3271 | ILK_CURSOR_SR_FIFO, |
| 3272 | ILK_CURSOR_MAX_SRWM, |
| 3273 | ILK_CURSOR_DFT_SRWM, |
| 3274 | 2, |
| 3275 | ILK_FIFO_LINE_SIZE |
| 3276 | }; |
| 3277 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3278 | static const struct intel_watermark_params sandybridge_display_wm_info = { |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 3279 | SNB_DISPLAY_FIFO, |
| 3280 | SNB_DISPLAY_MAXWM, |
| 3281 | SNB_DISPLAY_DFTWM, |
| 3282 | 2, |
| 3283 | SNB_FIFO_LINE_SIZE |
| 3284 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3285 | static const struct intel_watermark_params sandybridge_cursor_wm_info = { |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 3286 | SNB_CURSOR_FIFO, |
| 3287 | SNB_CURSOR_MAXWM, |
| 3288 | SNB_CURSOR_DFTWM, |
| 3289 | 2, |
| 3290 | SNB_FIFO_LINE_SIZE |
| 3291 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3292 | static const struct intel_watermark_params sandybridge_display_srwm_info = { |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 3293 | SNB_DISPLAY_SR_FIFO, |
| 3294 | SNB_DISPLAY_MAX_SRWM, |
| 3295 | SNB_DISPLAY_DFT_SRWM, |
| 3296 | 2, |
| 3297 | SNB_FIFO_LINE_SIZE |
| 3298 | }; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3299 | static const struct intel_watermark_params sandybridge_cursor_srwm_info = { |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 3300 | SNB_CURSOR_SR_FIFO, |
| 3301 | SNB_CURSOR_MAX_SRWM, |
| 3302 | SNB_CURSOR_DFT_SRWM, |
| 3303 | 2, |
| 3304 | SNB_FIFO_LINE_SIZE |
| 3305 | }; |
| 3306 | |
| 3307 | |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3308 | /** |
| 3309 | * intel_calculate_wm - calculate watermark level |
| 3310 | * @clock_in_khz: pixel clock |
| 3311 | * @wm: chip FIFO params |
| 3312 | * @pixel_size: display pixel size |
| 3313 | * @latency_ns: memory latency for the platform |
| 3314 | * |
| 3315 | * Calculate the watermark level (the level at which the display plane will |
| 3316 | * start fetching from memory again). Each chip has a different display |
| 3317 | * FIFO size and allocation, so the caller needs to figure that out and pass |
| 3318 | * in the correct intel_watermark_params structure. |
| 3319 | * |
| 3320 | * As the pixel clock runs, the FIFO will be drained at a rate that depends |
| 3321 | * on the pixel size. When it reaches the watermark level, it'll start |
| 3322 | * fetching FIFO line sized based chunks from memory until the FIFO fills |
| 3323 | * past the watermark point. If the FIFO drains completely, a FIFO underrun |
| 3324 | * will occur, and a display engine hang could result. |
| 3325 | */ |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3326 | static unsigned long intel_calculate_wm(unsigned long clock_in_khz, |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3327 | const struct intel_watermark_params *wm, |
| 3328 | int fifo_size, |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3329 | int pixel_size, |
| 3330 | unsigned long latency_ns) |
| 3331 | { |
Jesse Barnes | 390c4dd | 2009-07-16 13:01:01 -0700 | [diff] [blame] | 3332 | long entries_required, wm_size; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3333 | |
Jesse Barnes | d660467 | 2009-09-11 12:25:56 -0700 | [diff] [blame] | 3334 | /* |
| 3335 | * Note: we need to make sure we don't overflow for various clock & |
| 3336 | * latency values. |
| 3337 | * clocks go from a few thousand to several hundred thousand. |
| 3338 | * latency is usually a few thousand |
| 3339 | */ |
| 3340 | entries_required = ((clock_in_khz / 1000) * pixel_size * latency_ns) / |
| 3341 | 1000; |
Chris Wilson | 8de9b31 | 2010-07-19 19:59:52 +0100 | [diff] [blame] | 3342 | entries_required = DIV_ROUND_UP(entries_required, wm->cacheline_size); |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3343 | |
Joe Perches | bbb0aef | 2011-04-17 20:35:52 -0700 | [diff] [blame] | 3344 | DRM_DEBUG_KMS("FIFO entries required for mode: %ld\n", entries_required); |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3345 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3346 | wm_size = fifo_size - (entries_required + wm->guard_size); |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3347 | |
Joe Perches | bbb0aef | 2011-04-17 20:35:52 -0700 | [diff] [blame] | 3348 | DRM_DEBUG_KMS("FIFO watermark level: %ld\n", wm_size); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3349 | |
Jesse Barnes | 390c4dd | 2009-07-16 13:01:01 -0700 | [diff] [blame] | 3350 | /* Don't promote wm_size to unsigned... */ |
| 3351 | if (wm_size > (long)wm->max_wm) |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3352 | wm_size = wm->max_wm; |
Chris Wilson | c3add4b | 2010-09-08 09:14:08 +0100 | [diff] [blame] | 3353 | if (wm_size <= 0) |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3354 | wm_size = wm->default_wm; |
| 3355 | return wm_size; |
| 3356 | } |
| 3357 | |
| 3358 | struct cxsr_latency { |
| 3359 | int is_desktop; |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 3360 | int is_ddr3; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3361 | unsigned long fsb_freq; |
| 3362 | unsigned long mem_freq; |
| 3363 | unsigned long display_sr; |
| 3364 | unsigned long display_hpll_disable; |
| 3365 | unsigned long cursor_sr; |
| 3366 | unsigned long cursor_hpll_disable; |
| 3367 | }; |
| 3368 | |
Chris Wilson | 403c89f | 2010-08-04 15:25:31 +0100 | [diff] [blame] | 3369 | static const struct cxsr_latency cxsr_latency_table[] = { |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 3370 | {1, 0, 800, 400, 3382, 33382, 3983, 33983}, /* DDR2-400 SC */ |
| 3371 | {1, 0, 800, 667, 3354, 33354, 3807, 33807}, /* DDR2-667 SC */ |
| 3372 | {1, 0, 800, 800, 3347, 33347, 3763, 33763}, /* DDR2-800 SC */ |
| 3373 | {1, 1, 800, 667, 6420, 36420, 6873, 36873}, /* DDR3-667 SC */ |
| 3374 | {1, 1, 800, 800, 5902, 35902, 6318, 36318}, /* DDR3-800 SC */ |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3375 | |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 3376 | {1, 0, 667, 400, 3400, 33400, 4021, 34021}, /* DDR2-400 SC */ |
| 3377 | {1, 0, 667, 667, 3372, 33372, 3845, 33845}, /* DDR2-667 SC */ |
| 3378 | {1, 0, 667, 800, 3386, 33386, 3822, 33822}, /* DDR2-800 SC */ |
| 3379 | {1, 1, 667, 667, 6438, 36438, 6911, 36911}, /* DDR3-667 SC */ |
| 3380 | {1, 1, 667, 800, 5941, 35941, 6377, 36377}, /* DDR3-800 SC */ |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3381 | |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 3382 | {1, 0, 400, 400, 3472, 33472, 4173, 34173}, /* DDR2-400 SC */ |
| 3383 | {1, 0, 400, 667, 3443, 33443, 3996, 33996}, /* DDR2-667 SC */ |
| 3384 | {1, 0, 400, 800, 3430, 33430, 3946, 33946}, /* DDR2-800 SC */ |
| 3385 | {1, 1, 400, 667, 6509, 36509, 7062, 37062}, /* DDR3-667 SC */ |
| 3386 | {1, 1, 400, 800, 5985, 35985, 6501, 36501}, /* DDR3-800 SC */ |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3387 | |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 3388 | {0, 0, 800, 400, 3438, 33438, 4065, 34065}, /* DDR2-400 SC */ |
| 3389 | {0, 0, 800, 667, 3410, 33410, 3889, 33889}, /* DDR2-667 SC */ |
| 3390 | {0, 0, 800, 800, 3403, 33403, 3845, 33845}, /* DDR2-800 SC */ |
| 3391 | {0, 1, 800, 667, 6476, 36476, 6955, 36955}, /* DDR3-667 SC */ |
| 3392 | {0, 1, 800, 800, 5958, 35958, 6400, 36400}, /* DDR3-800 SC */ |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3393 | |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 3394 | {0, 0, 667, 400, 3456, 33456, 4103, 34106}, /* DDR2-400 SC */ |
| 3395 | {0, 0, 667, 667, 3428, 33428, 3927, 33927}, /* DDR2-667 SC */ |
| 3396 | {0, 0, 667, 800, 3443, 33443, 3905, 33905}, /* DDR2-800 SC */ |
| 3397 | {0, 1, 667, 667, 6494, 36494, 6993, 36993}, /* DDR3-667 SC */ |
| 3398 | {0, 1, 667, 800, 5998, 35998, 6460, 36460}, /* DDR3-800 SC */ |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3399 | |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 3400 | {0, 0, 400, 400, 3528, 33528, 4255, 34255}, /* DDR2-400 SC */ |
| 3401 | {0, 0, 400, 667, 3500, 33500, 4079, 34079}, /* DDR2-667 SC */ |
| 3402 | {0, 0, 400, 800, 3487, 33487, 4029, 34029}, /* DDR2-800 SC */ |
| 3403 | {0, 1, 400, 667, 6566, 36566, 7145, 37145}, /* DDR3-667 SC */ |
| 3404 | {0, 1, 400, 800, 6042, 36042, 6584, 36584}, /* DDR3-800 SC */ |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3405 | }; |
| 3406 | |
Chris Wilson | 403c89f | 2010-08-04 15:25:31 +0100 | [diff] [blame] | 3407 | static const struct cxsr_latency *intel_get_cxsr_latency(int is_desktop, |
| 3408 | int is_ddr3, |
| 3409 | int fsb, |
| 3410 | int mem) |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3411 | { |
Chris Wilson | 403c89f | 2010-08-04 15:25:31 +0100 | [diff] [blame] | 3412 | const struct cxsr_latency *latency; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3413 | int i; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3414 | |
| 3415 | if (fsb == 0 || mem == 0) |
| 3416 | return NULL; |
| 3417 | |
| 3418 | for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) { |
| 3419 | latency = &cxsr_latency_table[i]; |
| 3420 | if (is_desktop == latency->is_desktop && |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 3421 | is_ddr3 == latency->is_ddr3 && |
Jaswinder Singh Rajput | decbbcd | 2009-09-12 23:15:07 +0530 | [diff] [blame] | 3422 | fsb == latency->fsb_freq && mem == latency->mem_freq) |
| 3423 | return latency; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3424 | } |
Jaswinder Singh Rajput | decbbcd | 2009-09-12 23:15:07 +0530 | [diff] [blame] | 3425 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 3426 | DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); |
Jaswinder Singh Rajput | decbbcd | 2009-09-12 23:15:07 +0530 | [diff] [blame] | 3427 | |
| 3428 | return NULL; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3429 | } |
| 3430 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 3431 | static void pineview_disable_cxsr(struct drm_device *dev) |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3432 | { |
| 3433 | struct drm_i915_private *dev_priv = dev->dev_private; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3434 | |
| 3435 | /* deactivate cxsr */ |
Chris Wilson | 3e33d94 | 2010-08-04 11:17:25 +0100 | [diff] [blame] | 3436 | I915_WRITE(DSPFW3, I915_READ(DSPFW3) & ~PINEVIEW_SELF_REFRESH_EN); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3437 | } |
| 3438 | |
Jesse Barnes | bcc24fb | 2009-08-31 10:24:31 -0700 | [diff] [blame] | 3439 | /* |
| 3440 | * Latency for FIFO fetches is dependent on several factors: |
| 3441 | * - memory configuration (speed, channels) |
| 3442 | * - chipset |
| 3443 | * - current MCH state |
| 3444 | * It can be fairly high in some situations, so here we assume a fairly |
| 3445 | * pessimal value. It's a tradeoff between extra memory fetches (if we |
| 3446 | * set this value too high, the FIFO will fetch frequently to stay full) |
| 3447 | * and power consumption (set it too low to save power and we might see |
| 3448 | * FIFO underruns and display "flicker"). |
| 3449 | * |
| 3450 | * A value of 5us seems to be a good balance; safe for very low end |
| 3451 | * platforms but not overly aggressive on lower latency configs. |
| 3452 | */ |
Tobias Klauser | 69e302a | 2009-12-23 14:14:34 +0100 | [diff] [blame] | 3453 | static const int latency_ns = 5000; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3454 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3455 | static int i9xx_get_fifo_size(struct drm_device *dev, int plane) |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3456 | { |
| 3457 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 3458 | uint32_t dsparb = I915_READ(DSPARB); |
| 3459 | int size; |
| 3460 | |
Chris Wilson | 8de9b31 | 2010-07-19 19:59:52 +0100 | [diff] [blame] | 3461 | size = dsparb & 0x7f; |
| 3462 | if (plane) |
| 3463 | size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) - size; |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3464 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 3465 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 3466 | plane ? "B" : "A", size); |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3467 | |
| 3468 | return size; |
| 3469 | } |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3470 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3471 | static int i85x_get_fifo_size(struct drm_device *dev, int plane) |
| 3472 | { |
| 3473 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 3474 | uint32_t dsparb = I915_READ(DSPARB); |
| 3475 | int size; |
| 3476 | |
Chris Wilson | 8de9b31 | 2010-07-19 19:59:52 +0100 | [diff] [blame] | 3477 | size = dsparb & 0x1ff; |
| 3478 | if (plane) |
| 3479 | size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) - size; |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3480 | size >>= 1; /* Convert to cachelines */ |
| 3481 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 3482 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 3483 | plane ? "B" : "A", size); |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3484 | |
| 3485 | return size; |
| 3486 | } |
| 3487 | |
| 3488 | static int i845_get_fifo_size(struct drm_device *dev, int plane) |
| 3489 | { |
| 3490 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 3491 | uint32_t dsparb = I915_READ(DSPARB); |
| 3492 | int size; |
| 3493 | |
| 3494 | size = dsparb & 0x7f; |
| 3495 | size >>= 2; /* Convert to cachelines */ |
| 3496 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 3497 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 3498 | plane ? "B" : "A", |
| 3499 | size); |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3500 | |
| 3501 | return size; |
| 3502 | } |
| 3503 | |
| 3504 | static int i830_get_fifo_size(struct drm_device *dev, int plane) |
| 3505 | { |
| 3506 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 3507 | uint32_t dsparb = I915_READ(DSPARB); |
| 3508 | int size; |
| 3509 | |
| 3510 | size = dsparb & 0x7f; |
| 3511 | size >>= 1; /* Convert to cachelines */ |
| 3512 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 3513 | DRM_DEBUG_KMS("FIFO size - (0x%08x) %s: %d\n", dsparb, |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 3514 | plane ? "B" : "A", size); |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 3515 | |
| 3516 | return size; |
| 3517 | } |
| 3518 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3519 | static struct drm_crtc *single_enabled_crtc(struct drm_device *dev) |
| 3520 | { |
| 3521 | struct drm_crtc *crtc, *enabled = NULL; |
| 3522 | |
| 3523 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 3524 | if (crtc->enabled && crtc->fb) { |
| 3525 | if (enabled) |
| 3526 | return NULL; |
| 3527 | enabled = crtc; |
| 3528 | } |
| 3529 | } |
| 3530 | |
| 3531 | return enabled; |
| 3532 | } |
| 3533 | |
| 3534 | static void pineview_update_wm(struct drm_device *dev) |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 3535 | { |
| 3536 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3537 | struct drm_crtc *crtc; |
Chris Wilson | 403c89f | 2010-08-04 15:25:31 +0100 | [diff] [blame] | 3538 | const struct cxsr_latency *latency; |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 3539 | u32 reg; |
| 3540 | unsigned long wm; |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 3541 | |
Chris Wilson | 403c89f | 2010-08-04 15:25:31 +0100 | [diff] [blame] | 3542 | latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->is_ddr3, |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 3543 | dev_priv->fsb_freq, dev_priv->mem_freq); |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 3544 | if (!latency) { |
| 3545 | DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); |
| 3546 | pineview_disable_cxsr(dev); |
| 3547 | return; |
| 3548 | } |
| 3549 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3550 | crtc = single_enabled_crtc(dev); |
| 3551 | if (crtc) { |
| 3552 | int clock = crtc->mode.clock; |
| 3553 | int pixel_size = crtc->fb->bits_per_pixel / 8; |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 3554 | |
| 3555 | /* Display SR */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3556 | wm = intel_calculate_wm(clock, &pineview_display_wm, |
| 3557 | pineview_display_wm.fifo_size, |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 3558 | pixel_size, latency->display_sr); |
| 3559 | reg = I915_READ(DSPFW1); |
| 3560 | reg &= ~DSPFW_SR_MASK; |
| 3561 | reg |= wm << DSPFW_SR_SHIFT; |
| 3562 | I915_WRITE(DSPFW1, reg); |
| 3563 | DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg); |
| 3564 | |
| 3565 | /* cursor SR */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3566 | wm = intel_calculate_wm(clock, &pineview_cursor_wm, |
| 3567 | pineview_display_wm.fifo_size, |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 3568 | pixel_size, latency->cursor_sr); |
| 3569 | reg = I915_READ(DSPFW3); |
| 3570 | reg &= ~DSPFW_CURSOR_SR_MASK; |
| 3571 | reg |= (wm & 0x3f) << DSPFW_CURSOR_SR_SHIFT; |
| 3572 | I915_WRITE(DSPFW3, reg); |
| 3573 | |
| 3574 | /* Display HPLL off SR */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3575 | wm = intel_calculate_wm(clock, &pineview_display_hplloff_wm, |
| 3576 | pineview_display_hplloff_wm.fifo_size, |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 3577 | pixel_size, latency->display_hpll_disable); |
| 3578 | reg = I915_READ(DSPFW3); |
| 3579 | reg &= ~DSPFW_HPLL_SR_MASK; |
| 3580 | reg |= wm & DSPFW_HPLL_SR_MASK; |
| 3581 | I915_WRITE(DSPFW3, reg); |
| 3582 | |
| 3583 | /* cursor HPLL off SR */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3584 | wm = intel_calculate_wm(clock, &pineview_cursor_hplloff_wm, |
| 3585 | pineview_display_hplloff_wm.fifo_size, |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 3586 | pixel_size, latency->cursor_hpll_disable); |
| 3587 | reg = I915_READ(DSPFW3); |
| 3588 | reg &= ~DSPFW_HPLL_CURSOR_MASK; |
| 3589 | reg |= (wm & 0x3f) << DSPFW_HPLL_CURSOR_SHIFT; |
| 3590 | I915_WRITE(DSPFW3, reg); |
| 3591 | DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg); |
| 3592 | |
| 3593 | /* activate cxsr */ |
Chris Wilson | 3e33d94 | 2010-08-04 11:17:25 +0100 | [diff] [blame] | 3594 | I915_WRITE(DSPFW3, |
| 3595 | I915_READ(DSPFW3) | PINEVIEW_SELF_REFRESH_EN); |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 3596 | DRM_DEBUG_KMS("Self-refresh is enabled\n"); |
| 3597 | } else { |
| 3598 | pineview_disable_cxsr(dev); |
| 3599 | DRM_DEBUG_KMS("Self-refresh is disabled\n"); |
| 3600 | } |
| 3601 | } |
| 3602 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3603 | static bool g4x_compute_wm0(struct drm_device *dev, |
| 3604 | int plane, |
| 3605 | const struct intel_watermark_params *display, |
| 3606 | int display_latency_ns, |
| 3607 | const struct intel_watermark_params *cursor, |
| 3608 | int cursor_latency_ns, |
| 3609 | int *plane_wm, |
| 3610 | int *cursor_wm) |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 3611 | { |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3612 | struct drm_crtc *crtc; |
| 3613 | int htotal, hdisplay, clock, pixel_size; |
| 3614 | int line_time_us, line_count; |
| 3615 | int entries, tlb_miss; |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 3616 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3617 | crtc = intel_get_crtc_for_plane(dev, plane); |
Chris Wilson | 5c72d06 | 2011-04-13 09:28:23 +0100 | [diff] [blame] | 3618 | if (crtc->fb == NULL || !crtc->enabled) { |
| 3619 | *cursor_wm = cursor->guard_size; |
| 3620 | *plane_wm = display->guard_size; |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3621 | return false; |
Chris Wilson | 5c72d06 | 2011-04-13 09:28:23 +0100 | [diff] [blame] | 3622 | } |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3623 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3624 | htotal = crtc->mode.htotal; |
| 3625 | hdisplay = crtc->mode.hdisplay; |
| 3626 | clock = crtc->mode.clock; |
| 3627 | pixel_size = crtc->fb->bits_per_pixel / 8; |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3628 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3629 | /* Use the small buffer method to calculate plane watermark */ |
| 3630 | entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000; |
| 3631 | tlb_miss = display->fifo_size*display->cacheline_size - hdisplay * 8; |
| 3632 | if (tlb_miss > 0) |
| 3633 | entries += tlb_miss; |
| 3634 | entries = DIV_ROUND_UP(entries, display->cacheline_size); |
| 3635 | *plane_wm = entries + display->guard_size; |
| 3636 | if (*plane_wm > (int)display->max_wm) |
| 3637 | *plane_wm = display->max_wm; |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3638 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3639 | /* Use the large buffer method to calculate cursor watermark */ |
| 3640 | line_time_us = ((htotal * 1000) / clock); |
| 3641 | line_count = (cursor_latency_ns / line_time_us + 1000) / 1000; |
| 3642 | entries = line_count * 64 * pixel_size; |
| 3643 | tlb_miss = cursor->fifo_size*cursor->cacheline_size - hdisplay * 8; |
| 3644 | if (tlb_miss > 0) |
| 3645 | entries += tlb_miss; |
| 3646 | entries = DIV_ROUND_UP(entries, cursor->cacheline_size); |
| 3647 | *cursor_wm = entries + cursor->guard_size; |
| 3648 | if (*cursor_wm > (int)cursor->max_wm) |
| 3649 | *cursor_wm = (int)cursor->max_wm; |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3650 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3651 | return true; |
| 3652 | } |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3653 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3654 | /* |
| 3655 | * Check the wm result. |
| 3656 | * |
| 3657 | * If any calculated watermark values is larger than the maximum value that |
| 3658 | * can be programmed into the associated watermark register, that watermark |
| 3659 | * must be disabled. |
| 3660 | */ |
| 3661 | static bool g4x_check_srwm(struct drm_device *dev, |
| 3662 | int display_wm, int cursor_wm, |
| 3663 | const struct intel_watermark_params *display, |
| 3664 | const struct intel_watermark_params *cursor) |
| 3665 | { |
| 3666 | DRM_DEBUG_KMS("SR watermark: display plane %d, cursor %d\n", |
| 3667 | display_wm, cursor_wm); |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3668 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3669 | if (display_wm > display->max_wm) { |
Joe Perches | bbb0aef | 2011-04-17 20:35:52 -0700 | [diff] [blame] | 3670 | DRM_DEBUG_KMS("display watermark is too large(%d/%ld), disabling\n", |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3671 | display_wm, display->max_wm); |
| 3672 | return false; |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3673 | } |
| 3674 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3675 | if (cursor_wm > cursor->max_wm) { |
Joe Perches | bbb0aef | 2011-04-17 20:35:52 -0700 | [diff] [blame] | 3676 | DRM_DEBUG_KMS("cursor watermark is too large(%d/%ld), disabling\n", |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3677 | cursor_wm, cursor->max_wm); |
| 3678 | return false; |
| 3679 | } |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3680 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3681 | if (!(display_wm || cursor_wm)) { |
| 3682 | DRM_DEBUG_KMS("SR latency is 0, disabling\n"); |
| 3683 | return false; |
| 3684 | } |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3685 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3686 | return true; |
| 3687 | } |
| 3688 | |
| 3689 | static bool g4x_compute_srwm(struct drm_device *dev, |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3690 | int plane, |
| 3691 | int latency_ns, |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3692 | const struct intel_watermark_params *display, |
| 3693 | const struct intel_watermark_params *cursor, |
| 3694 | int *display_wm, int *cursor_wm) |
| 3695 | { |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3696 | struct drm_crtc *crtc; |
| 3697 | int hdisplay, htotal, pixel_size, clock; |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3698 | unsigned long line_time_us; |
| 3699 | int line_count, line_size; |
| 3700 | int small, large; |
| 3701 | int entries; |
| 3702 | |
| 3703 | if (!latency_ns) { |
| 3704 | *display_wm = *cursor_wm = 0; |
| 3705 | return false; |
| 3706 | } |
| 3707 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3708 | crtc = intel_get_crtc_for_plane(dev, plane); |
| 3709 | hdisplay = crtc->mode.hdisplay; |
| 3710 | htotal = crtc->mode.htotal; |
| 3711 | clock = crtc->mode.clock; |
| 3712 | pixel_size = crtc->fb->bits_per_pixel / 8; |
| 3713 | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3714 | line_time_us = (htotal * 1000) / clock; |
| 3715 | line_count = (latency_ns / line_time_us + 1000) / 1000; |
| 3716 | line_size = hdisplay * pixel_size; |
| 3717 | |
| 3718 | /* Use the minimum of the small and large buffer method for primary */ |
| 3719 | small = ((clock * pixel_size / 1000) * latency_ns) / 1000; |
| 3720 | large = line_count * line_size; |
| 3721 | |
| 3722 | entries = DIV_ROUND_UP(min(small, large), display->cacheline_size); |
| 3723 | *display_wm = entries + display->guard_size; |
| 3724 | |
| 3725 | /* calculate the self-refresh watermark for display cursor */ |
| 3726 | entries = line_count * pixel_size * 64; |
| 3727 | entries = DIV_ROUND_UP(entries, cursor->cacheline_size); |
| 3728 | *cursor_wm = entries + cursor->guard_size; |
| 3729 | |
| 3730 | return g4x_check_srwm(dev, |
| 3731 | *display_wm, *cursor_wm, |
| 3732 | display, cursor); |
| 3733 | } |
| 3734 | |
Yuanhan Liu | 7ccb4a5 | 2011-03-18 07:37:35 +0000 | [diff] [blame] | 3735 | #define single_plane_enabled(mask) is_power_of_2(mask) |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3736 | |
| 3737 | static void g4x_update_wm(struct drm_device *dev) |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3738 | { |
| 3739 | static const int sr_latency_ns = 12000; |
| 3740 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 3741 | int planea_wm, planeb_wm, cursora_wm, cursorb_wm; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3742 | int plane_sr, cursor_sr; |
| 3743 | unsigned int enabled = 0; |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3744 | |
| 3745 | if (g4x_compute_wm0(dev, 0, |
| 3746 | &g4x_wm_info, latency_ns, |
| 3747 | &g4x_cursor_wm_info, latency_ns, |
| 3748 | &planea_wm, &cursora_wm)) |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3749 | enabled |= 1; |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3750 | |
| 3751 | if (g4x_compute_wm0(dev, 1, |
| 3752 | &g4x_wm_info, latency_ns, |
| 3753 | &g4x_cursor_wm_info, latency_ns, |
| 3754 | &planeb_wm, &cursorb_wm)) |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3755 | enabled |= 2; |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3756 | |
| 3757 | plane_sr = cursor_sr = 0; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3758 | if (single_plane_enabled(enabled) && |
| 3759 | g4x_compute_srwm(dev, ffs(enabled) - 1, |
| 3760 | sr_latency_ns, |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3761 | &g4x_wm_info, |
| 3762 | &g4x_cursor_wm_info, |
| 3763 | &plane_sr, &cursor_sr)) |
| 3764 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); |
| 3765 | else |
| 3766 | I915_WRITE(FW_BLC_SELF, |
| 3767 | I915_READ(FW_BLC_SELF) & ~FW_BLC_SELF_EN); |
| 3768 | |
Chris Wilson | 308977a | 2011-02-02 10:41:20 +0000 | [diff] [blame] | 3769 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: plane=%d, cursor=%d, B: plane=%d, cursor=%d, SR: plane=%d, cursor=%d\n", |
| 3770 | planea_wm, cursora_wm, |
| 3771 | planeb_wm, cursorb_wm, |
| 3772 | plane_sr, cursor_sr); |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3773 | |
| 3774 | I915_WRITE(DSPFW1, |
| 3775 | (plane_sr << DSPFW_SR_SHIFT) | |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3776 | (cursorb_wm << DSPFW_CURSORB_SHIFT) | |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3777 | (planeb_wm << DSPFW_PLANEB_SHIFT) | |
| 3778 | planea_wm); |
| 3779 | I915_WRITE(DSPFW2, |
| 3780 | (I915_READ(DSPFW2) & DSPFW_CURSORA_MASK) | |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3781 | (cursora_wm << DSPFW_CURSORA_SHIFT)); |
| 3782 | /* HPLL off in SR has some issues on G4x... disable it */ |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3783 | I915_WRITE(DSPFW3, |
| 3784 | (I915_READ(DSPFW3) & ~DSPFW_HPLL_SR_EN) | |
Jesse Barnes | 0e442c6 | 2009-10-19 10:09:33 +0900 | [diff] [blame] | 3785 | (cursor_sr << DSPFW_CURSOR_SR_SHIFT)); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 3786 | } |
| 3787 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3788 | static void i965_update_wm(struct drm_device *dev) |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3789 | { |
| 3790 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3791 | struct drm_crtc *crtc; |
| 3792 | int srwm = 1; |
Zhao Yakui | 4fe5e61 | 2010-06-12 14:32:25 +0800 | [diff] [blame] | 3793 | int cursor_sr = 16; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3794 | |
Jesse Barnes | 1dc7546 | 2009-10-19 10:08:17 +0900 | [diff] [blame] | 3795 | /* Calc sr entries for one plane configs */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3796 | crtc = single_enabled_crtc(dev); |
| 3797 | if (crtc) { |
Jesse Barnes | 1dc7546 | 2009-10-19 10:08:17 +0900 | [diff] [blame] | 3798 | /* self-refresh has much higher latency */ |
Tobias Klauser | 69e302a | 2009-12-23 14:14:34 +0100 | [diff] [blame] | 3799 | static const int sr_latency_ns = 12000; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3800 | int clock = crtc->mode.clock; |
| 3801 | int htotal = crtc->mode.htotal; |
| 3802 | int hdisplay = crtc->mode.hdisplay; |
| 3803 | int pixel_size = crtc->fb->bits_per_pixel / 8; |
| 3804 | unsigned long line_time_us; |
| 3805 | int entries; |
Jesse Barnes | 1dc7546 | 2009-10-19 10:08:17 +0900 | [diff] [blame] | 3806 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3807 | line_time_us = ((htotal * 1000) / clock); |
Jesse Barnes | 1dc7546 | 2009-10-19 10:08:17 +0900 | [diff] [blame] | 3808 | |
| 3809 | /* Use ns/us then divide to preserve precision */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3810 | entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
| 3811 | pixel_size * hdisplay; |
| 3812 | entries = DIV_ROUND_UP(entries, I915_FIFO_LINE_SIZE); |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3813 | srwm = I965_FIFO_SIZE - entries; |
Jesse Barnes | 1dc7546 | 2009-10-19 10:08:17 +0900 | [diff] [blame] | 3814 | if (srwm < 0) |
| 3815 | srwm = 1; |
Zhao Yakui | 1b07e04 | 2010-06-12 14:32:24 +0800 | [diff] [blame] | 3816 | srwm &= 0x1ff; |
Chris Wilson | 308977a | 2011-02-02 10:41:20 +0000 | [diff] [blame] | 3817 | DRM_DEBUG_KMS("self-refresh entries: %d, wm: %d\n", |
| 3818 | entries, srwm); |
Zhao Yakui | 4fe5e61 | 2010-06-12 14:32:25 +0800 | [diff] [blame] | 3819 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3820 | entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 3821 | pixel_size * 64; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3822 | entries = DIV_ROUND_UP(entries, |
Chris Wilson | 8de9b31 | 2010-07-19 19:59:52 +0100 | [diff] [blame] | 3823 | i965_cursor_wm_info.cacheline_size); |
Zhao Yakui | 4fe5e61 | 2010-06-12 14:32:25 +0800 | [diff] [blame] | 3824 | cursor_sr = i965_cursor_wm_info.fifo_size - |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3825 | (entries + i965_cursor_wm_info.guard_size); |
Zhao Yakui | 4fe5e61 | 2010-06-12 14:32:25 +0800 | [diff] [blame] | 3826 | |
| 3827 | if (cursor_sr > i965_cursor_wm_info.max_wm) |
| 3828 | cursor_sr = i965_cursor_wm_info.max_wm; |
| 3829 | |
| 3830 | DRM_DEBUG_KMS("self-refresh watermark: display plane %d " |
| 3831 | "cursor %d\n", srwm, cursor_sr); |
| 3832 | |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 3833 | if (IS_CRESTLINE(dev)) |
Jesse Barnes | adcdbc6 | 2010-06-30 13:49:37 -0700 | [diff] [blame] | 3834 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); |
David John | 33c5fd1 | 2010-01-27 15:19:08 +0530 | [diff] [blame] | 3835 | } else { |
| 3836 | /* Turn off self refresh if both pipes are enabled */ |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 3837 | if (IS_CRESTLINE(dev)) |
Jesse Barnes | adcdbc6 | 2010-06-30 13:49:37 -0700 | [diff] [blame] | 3838 | I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF) |
| 3839 | & ~FW_BLC_SELF_EN); |
Jesse Barnes | 1dc7546 | 2009-10-19 10:08:17 +0900 | [diff] [blame] | 3840 | } |
| 3841 | |
| 3842 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR %d\n", |
| 3843 | srwm); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3844 | |
| 3845 | /* 965 has limitations... */ |
Chris Wilson | 417ae14 | 2011-01-19 15:04:42 +0000 | [diff] [blame] | 3846 | I915_WRITE(DSPFW1, (srwm << DSPFW_SR_SHIFT) | |
| 3847 | (8 << 16) | (8 << 8) | (8 << 0)); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3848 | I915_WRITE(DSPFW2, (8 << 8) | (8 << 0)); |
Zhao Yakui | 4fe5e61 | 2010-06-12 14:32:25 +0800 | [diff] [blame] | 3849 | /* update cursor SR watermark */ |
| 3850 | I915_WRITE(DSPFW3, (cursor_sr << DSPFW_CURSOR_SR_SHIFT)); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3851 | } |
| 3852 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3853 | static void i9xx_update_wm(struct drm_device *dev) |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3854 | { |
| 3855 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3856 | const struct intel_watermark_params *wm_info; |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3857 | uint32_t fwater_lo; |
| 3858 | uint32_t fwater_hi; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3859 | int cwm, srwm = 1; |
| 3860 | int fifo_size; |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3861 | int planea_wm, planeb_wm; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3862 | struct drm_crtc *crtc, *enabled = NULL; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3863 | |
Chris Wilson | 72557b4 | 2011-01-31 10:29:55 +0000 | [diff] [blame] | 3864 | if (IS_I945GM(dev)) |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3865 | wm_info = &i945_wm_info; |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 3866 | else if (!IS_GEN2(dev)) |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3867 | wm_info = &i915_wm_info; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3868 | else |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3869 | wm_info = &i855_wm_info; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3870 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3871 | fifo_size = dev_priv->display.get_fifo_size(dev, 0); |
| 3872 | crtc = intel_get_crtc_for_plane(dev, 0); |
| 3873 | if (crtc->enabled && crtc->fb) { |
| 3874 | planea_wm = intel_calculate_wm(crtc->mode.clock, |
| 3875 | wm_info, fifo_size, |
| 3876 | crtc->fb->bits_per_pixel / 8, |
| 3877 | latency_ns); |
| 3878 | enabled = crtc; |
| 3879 | } else |
| 3880 | planea_wm = fifo_size - wm_info->guard_size; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3881 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3882 | fifo_size = dev_priv->display.get_fifo_size(dev, 1); |
| 3883 | crtc = intel_get_crtc_for_plane(dev, 1); |
| 3884 | if (crtc->enabled && crtc->fb) { |
| 3885 | planeb_wm = intel_calculate_wm(crtc->mode.clock, |
| 3886 | wm_info, fifo_size, |
| 3887 | crtc->fb->bits_per_pixel / 8, |
| 3888 | latency_ns); |
| 3889 | if (enabled == NULL) |
| 3890 | enabled = crtc; |
| 3891 | else |
| 3892 | enabled = NULL; |
| 3893 | } else |
| 3894 | planeb_wm = fifo_size - wm_info->guard_size; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3895 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 3896 | DRM_DEBUG_KMS("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3897 | |
| 3898 | /* |
| 3899 | * Overlay gets an aggressive default since video jitter is bad. |
| 3900 | */ |
| 3901 | cwm = 2; |
| 3902 | |
Alexander Lam | 18b2190 | 2011-01-03 13:28:56 -0500 | [diff] [blame] | 3903 | /* Play safe and disable self-refresh before adjusting watermarks. */ |
| 3904 | if (IS_I945G(dev) || IS_I945GM(dev)) |
| 3905 | I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | 0); |
| 3906 | else if (IS_I915GM(dev)) |
| 3907 | I915_WRITE(INSTPM, I915_READ(INSTPM) & ~INSTPM_SELF_EN); |
| 3908 | |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3909 | /* Calc sr entries for one plane configs */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3910 | if (HAS_FW_BLC(dev) && enabled) { |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3911 | /* self-refresh has much higher latency */ |
Tobias Klauser | 69e302a | 2009-12-23 14:14:34 +0100 | [diff] [blame] | 3912 | static const int sr_latency_ns = 6000; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3913 | int clock = enabled->mode.clock; |
| 3914 | int htotal = enabled->mode.htotal; |
| 3915 | int hdisplay = enabled->mode.hdisplay; |
| 3916 | int pixel_size = enabled->fb->bits_per_pixel / 8; |
| 3917 | unsigned long line_time_us; |
| 3918 | int entries; |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3919 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3920 | line_time_us = (htotal * 1000) / clock; |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3921 | |
| 3922 | /* Use ns/us then divide to preserve precision */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3923 | entries = (((sr_latency_ns / line_time_us) + 1000) / 1000) * |
| 3924 | pixel_size * hdisplay; |
| 3925 | entries = DIV_ROUND_UP(entries, wm_info->cacheline_size); |
| 3926 | DRM_DEBUG_KMS("self-refresh entries: %d\n", entries); |
| 3927 | srwm = wm_info->fifo_size - entries; |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3928 | if (srwm < 0) |
| 3929 | srwm = 1; |
Li Peng | ee980b8 | 2010-01-27 19:01:11 +0800 | [diff] [blame] | 3930 | |
| 3931 | if (IS_I945G(dev) || IS_I945GM(dev)) |
Alexander Lam | 18b2190 | 2011-01-03 13:28:56 -0500 | [diff] [blame] | 3932 | I915_WRITE(FW_BLC_SELF, |
| 3933 | FW_BLC_SELF_FIFO_MASK | (srwm & 0xff)); |
| 3934 | else if (IS_I915GM(dev)) |
Li Peng | ee980b8 | 2010-01-27 19:01:11 +0800 | [diff] [blame] | 3935 | I915_WRITE(FW_BLC_SELF, srwm & 0x3f); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3936 | } |
| 3937 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 3938 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n", |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 3939 | planea_wm, planeb_wm, cwm, srwm); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3940 | |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3941 | fwater_lo = ((planeb_wm & 0x3f) << 16) | (planea_wm & 0x3f); |
| 3942 | fwater_hi = (cwm & 0x1f); |
| 3943 | |
| 3944 | /* Set request length to 8 cachelines per fetch */ |
| 3945 | fwater_lo = fwater_lo | (1 << 24) | (1 << 8); |
| 3946 | fwater_hi = fwater_hi | (1 << 8); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3947 | |
| 3948 | I915_WRITE(FW_BLC, fwater_lo); |
| 3949 | I915_WRITE(FW_BLC2, fwater_hi); |
Alexander Lam | 18b2190 | 2011-01-03 13:28:56 -0500 | [diff] [blame] | 3950 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3951 | if (HAS_FW_BLC(dev)) { |
| 3952 | if (enabled) { |
| 3953 | if (IS_I945G(dev) || IS_I945GM(dev)) |
| 3954 | I915_WRITE(FW_BLC_SELF, |
| 3955 | FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN); |
| 3956 | else if (IS_I915GM(dev)) |
| 3957 | I915_WRITE(INSTPM, I915_READ(INSTPM) | INSTPM_SELF_EN); |
| 3958 | DRM_DEBUG_KMS("memory self refresh enabled\n"); |
| 3959 | } else |
| 3960 | DRM_DEBUG_KMS("memory self refresh disabled\n"); |
| 3961 | } |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3962 | } |
| 3963 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3964 | static void i830_update_wm(struct drm_device *dev) |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3965 | { |
| 3966 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3967 | struct drm_crtc *crtc; |
| 3968 | uint32_t fwater_lo; |
Jesse Barnes | dff33cf | 2009-07-14 10:15:56 -0700 | [diff] [blame] | 3969 | int planea_wm; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3970 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3971 | crtc = single_enabled_crtc(dev); |
| 3972 | if (crtc == NULL) |
| 3973 | return; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3974 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 3975 | planea_wm = intel_calculate_wm(crtc->mode.clock, &i830_wm_info, |
| 3976 | dev_priv->display.get_fifo_size(dev, 0), |
| 3977 | crtc->fb->bits_per_pixel / 8, |
| 3978 | latency_ns); |
| 3979 | fwater_lo = I915_READ(FW_BLC) & ~0xfff; |
Jesse Barnes | f360132 | 2009-07-22 12:54:59 -0700 | [diff] [blame] | 3980 | fwater_lo |= (3<<8) | planea_wm; |
| 3981 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 3982 | DRM_DEBUG_KMS("Setting FIFO watermarks - A: %d\n", planea_wm); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 3983 | |
| 3984 | I915_WRITE(FW_BLC, fwater_lo); |
| 3985 | } |
| 3986 | |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 3987 | #define ILK_LP0_PLANE_LATENCY 700 |
Zhao Yakui | c936f44 | 2010-06-12 14:32:26 +0800 | [diff] [blame] | 3988 | #define ILK_LP0_CURSOR_LATENCY 1300 |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 3989 | |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 3990 | /* |
| 3991 | * Check the wm result. |
| 3992 | * |
| 3993 | * If any calculated watermark values is larger than the maximum value that |
| 3994 | * can be programmed into the associated watermark register, that watermark |
| 3995 | * must be disabled. |
| 3996 | */ |
| 3997 | static bool ironlake_check_srwm(struct drm_device *dev, int level, |
| 3998 | int fbc_wm, int display_wm, int cursor_wm, |
| 3999 | const struct intel_watermark_params *display, |
| 4000 | const struct intel_watermark_params *cursor) |
| 4001 | { |
| 4002 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 4003 | |
| 4004 | DRM_DEBUG_KMS("watermark %d: display plane %d, fbc lines %d," |
| 4005 | " cursor %d\n", level, display_wm, fbc_wm, cursor_wm); |
| 4006 | |
| 4007 | if (fbc_wm > SNB_FBC_MAX_SRWM) { |
| 4008 | DRM_DEBUG_KMS("fbc watermark(%d) is too large(%d), disabling wm%d+\n", |
| 4009 | fbc_wm, SNB_FBC_MAX_SRWM, level); |
| 4010 | |
| 4011 | /* fbc has it's own way to disable FBC WM */ |
| 4012 | I915_WRITE(DISP_ARB_CTL, |
| 4013 | I915_READ(DISP_ARB_CTL) | DISP_FBC_WM_DIS); |
| 4014 | return false; |
| 4015 | } |
| 4016 | |
| 4017 | if (display_wm > display->max_wm) { |
| 4018 | DRM_DEBUG_KMS("display watermark(%d) is too large(%d), disabling wm%d+\n", |
| 4019 | display_wm, SNB_DISPLAY_MAX_SRWM, level); |
| 4020 | return false; |
| 4021 | } |
| 4022 | |
| 4023 | if (cursor_wm > cursor->max_wm) { |
| 4024 | DRM_DEBUG_KMS("cursor watermark(%d) is too large(%d), disabling wm%d+\n", |
| 4025 | cursor_wm, SNB_CURSOR_MAX_SRWM, level); |
| 4026 | return false; |
| 4027 | } |
| 4028 | |
| 4029 | if (!(fbc_wm || display_wm || cursor_wm)) { |
| 4030 | DRM_DEBUG_KMS("latency %d is 0, disabling wm%d+\n", level, level); |
| 4031 | return false; |
| 4032 | } |
| 4033 | |
| 4034 | return true; |
| 4035 | } |
| 4036 | |
| 4037 | /* |
| 4038 | * Compute watermark values of WM[1-3], |
| 4039 | */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4040 | static bool ironlake_compute_srwm(struct drm_device *dev, int level, int plane, |
| 4041 | int latency_ns, |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4042 | const struct intel_watermark_params *display, |
| 4043 | const struct intel_watermark_params *cursor, |
| 4044 | int *fbc_wm, int *display_wm, int *cursor_wm) |
| 4045 | { |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4046 | struct drm_crtc *crtc; |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4047 | unsigned long line_time_us; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4048 | int hdisplay, htotal, pixel_size, clock; |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4049 | int line_count, line_size; |
| 4050 | int small, large; |
| 4051 | int entries; |
| 4052 | |
| 4053 | if (!latency_ns) { |
| 4054 | *fbc_wm = *display_wm = *cursor_wm = 0; |
| 4055 | return false; |
| 4056 | } |
| 4057 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4058 | crtc = intel_get_crtc_for_plane(dev, plane); |
| 4059 | hdisplay = crtc->mode.hdisplay; |
| 4060 | htotal = crtc->mode.htotal; |
| 4061 | clock = crtc->mode.clock; |
| 4062 | pixel_size = crtc->fb->bits_per_pixel / 8; |
| 4063 | |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4064 | line_time_us = (htotal * 1000) / clock; |
| 4065 | line_count = (latency_ns / line_time_us + 1000) / 1000; |
| 4066 | line_size = hdisplay * pixel_size; |
| 4067 | |
| 4068 | /* Use the minimum of the small and large buffer method for primary */ |
| 4069 | small = ((clock * pixel_size / 1000) * latency_ns) / 1000; |
| 4070 | large = line_count * line_size; |
| 4071 | |
| 4072 | entries = DIV_ROUND_UP(min(small, large), display->cacheline_size); |
| 4073 | *display_wm = entries + display->guard_size; |
| 4074 | |
| 4075 | /* |
| 4076 | * Spec says: |
| 4077 | * FBC WM = ((Final Primary WM * 64) / number of bytes per line) + 2 |
| 4078 | */ |
| 4079 | *fbc_wm = DIV_ROUND_UP(*display_wm * 64, line_size) + 2; |
| 4080 | |
| 4081 | /* calculate the self-refresh watermark for display cursor */ |
| 4082 | entries = line_count * pixel_size * 64; |
| 4083 | entries = DIV_ROUND_UP(entries, cursor->cacheline_size); |
| 4084 | *cursor_wm = entries + cursor->guard_size; |
| 4085 | |
| 4086 | return ironlake_check_srwm(dev, level, |
| 4087 | *fbc_wm, *display_wm, *cursor_wm, |
| 4088 | display, cursor); |
| 4089 | } |
| 4090 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4091 | static void ironlake_update_wm(struct drm_device *dev) |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 4092 | { |
| 4093 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4094 | int fbc_wm, plane_wm, cursor_wm; |
| 4095 | unsigned int enabled; |
Zhao Yakui | c936f44 | 2010-06-12 14:32:26 +0800 | [diff] [blame] | 4096 | |
Chris Wilson | 4ed765f | 2010-09-11 10:46:47 +0100 | [diff] [blame] | 4097 | enabled = 0; |
Chris Wilson | 9f40510 | 2011-05-12 22:17:14 +0100 | [diff] [blame] | 4098 | if (g4x_compute_wm0(dev, 0, |
| 4099 | &ironlake_display_wm_info, |
| 4100 | ILK_LP0_PLANE_LATENCY, |
| 4101 | &ironlake_cursor_wm_info, |
| 4102 | ILK_LP0_CURSOR_LATENCY, |
| 4103 | &plane_wm, &cursor_wm)) { |
Chris Wilson | 4ed765f | 2010-09-11 10:46:47 +0100 | [diff] [blame] | 4104 | I915_WRITE(WM0_PIPEA_ILK, |
| 4105 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); |
| 4106 | DRM_DEBUG_KMS("FIFO watermarks For pipe A -" |
| 4107 | " plane %d, " "cursor: %d\n", |
| 4108 | plane_wm, cursor_wm); |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4109 | enabled |= 1; |
Zhao Yakui | c936f44 | 2010-06-12 14:32:26 +0800 | [diff] [blame] | 4110 | } |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 4111 | |
Chris Wilson | 9f40510 | 2011-05-12 22:17:14 +0100 | [diff] [blame] | 4112 | if (g4x_compute_wm0(dev, 1, |
| 4113 | &ironlake_display_wm_info, |
| 4114 | ILK_LP0_PLANE_LATENCY, |
| 4115 | &ironlake_cursor_wm_info, |
| 4116 | ILK_LP0_CURSOR_LATENCY, |
| 4117 | &plane_wm, &cursor_wm)) { |
Chris Wilson | 4ed765f | 2010-09-11 10:46:47 +0100 | [diff] [blame] | 4118 | I915_WRITE(WM0_PIPEB_ILK, |
| 4119 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); |
| 4120 | DRM_DEBUG_KMS("FIFO watermarks For pipe B -" |
| 4121 | " plane %d, cursor: %d\n", |
| 4122 | plane_wm, cursor_wm); |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4123 | enabled |= 2; |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 4124 | } |
| 4125 | |
| 4126 | /* |
| 4127 | * Calculate and update the self-refresh watermark only when one |
| 4128 | * display plane is used. |
| 4129 | */ |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4130 | I915_WRITE(WM3_LP_ILK, 0); |
| 4131 | I915_WRITE(WM2_LP_ILK, 0); |
| 4132 | I915_WRITE(WM1_LP_ILK, 0); |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 4133 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4134 | if (!single_plane_enabled(enabled)) |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4135 | return; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4136 | enabled = ffs(enabled) - 1; |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 4137 | |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4138 | /* WM1 */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4139 | if (!ironlake_compute_srwm(dev, 1, enabled, |
| 4140 | ILK_READ_WM1_LATENCY() * 500, |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4141 | &ironlake_display_srwm_info, |
| 4142 | &ironlake_cursor_srwm_info, |
| 4143 | &fbc_wm, &plane_wm, &cursor_wm)) |
| 4144 | return; |
Chris Wilson | 4ed765f | 2010-09-11 10:46:47 +0100 | [diff] [blame] | 4145 | |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4146 | I915_WRITE(WM1_LP_ILK, |
| 4147 | WM1_LP_SR_EN | |
| 4148 | (ILK_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) | |
| 4149 | (fbc_wm << WM1_LP_FBC_SHIFT) | |
| 4150 | (plane_wm << WM1_LP_SR_SHIFT) | |
| 4151 | cursor_wm); |
Chris Wilson | 4ed765f | 2010-09-11 10:46:47 +0100 | [diff] [blame] | 4152 | |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4153 | /* WM2 */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4154 | if (!ironlake_compute_srwm(dev, 2, enabled, |
| 4155 | ILK_READ_WM2_LATENCY() * 500, |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4156 | &ironlake_display_srwm_info, |
| 4157 | &ironlake_cursor_srwm_info, |
| 4158 | &fbc_wm, &plane_wm, &cursor_wm)) |
| 4159 | return; |
Chris Wilson | 4ed765f | 2010-09-11 10:46:47 +0100 | [diff] [blame] | 4160 | |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4161 | I915_WRITE(WM2_LP_ILK, |
| 4162 | WM2_LP_EN | |
| 4163 | (ILK_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) | |
| 4164 | (fbc_wm << WM1_LP_FBC_SHIFT) | |
| 4165 | (plane_wm << WM1_LP_SR_SHIFT) | |
| 4166 | cursor_wm); |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4167 | |
| 4168 | /* |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4169 | * WM3 is unsupported on ILK, probably because we don't have latency |
| 4170 | * data for that power state |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4171 | */ |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4172 | } |
| 4173 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4174 | static void sandybridge_update_wm(struct drm_device *dev) |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4175 | { |
| 4176 | struct drm_i915_private *dev_priv = dev->dev_private; |
Yuanhan Liu | a0fa62d | 2010-12-23 16:35:40 +0800 | [diff] [blame] | 4177 | int latency = SNB_READ_WM0_LATENCY() * 100; /* In unit 0.1us */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4178 | int fbc_wm, plane_wm, cursor_wm; |
| 4179 | unsigned int enabled; |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4180 | |
| 4181 | enabled = 0; |
Chris Wilson | 9f40510 | 2011-05-12 22:17:14 +0100 | [diff] [blame] | 4182 | if (g4x_compute_wm0(dev, 0, |
| 4183 | &sandybridge_display_wm_info, latency, |
| 4184 | &sandybridge_cursor_wm_info, latency, |
| 4185 | &plane_wm, &cursor_wm)) { |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4186 | I915_WRITE(WM0_PIPEA_ILK, |
| 4187 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); |
| 4188 | DRM_DEBUG_KMS("FIFO watermarks For pipe A -" |
| 4189 | " plane %d, " "cursor: %d\n", |
| 4190 | plane_wm, cursor_wm); |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4191 | enabled |= 1; |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4192 | } |
| 4193 | |
Chris Wilson | 9f40510 | 2011-05-12 22:17:14 +0100 | [diff] [blame] | 4194 | if (g4x_compute_wm0(dev, 1, |
| 4195 | &sandybridge_display_wm_info, latency, |
| 4196 | &sandybridge_cursor_wm_info, latency, |
| 4197 | &plane_wm, &cursor_wm)) { |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4198 | I915_WRITE(WM0_PIPEB_ILK, |
| 4199 | (plane_wm << WM0_PIPE_PLANE_SHIFT) | cursor_wm); |
| 4200 | DRM_DEBUG_KMS("FIFO watermarks For pipe B -" |
| 4201 | " plane %d, cursor: %d\n", |
| 4202 | plane_wm, cursor_wm); |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4203 | enabled |= 2; |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4204 | } |
| 4205 | |
| 4206 | /* |
| 4207 | * Calculate and update the self-refresh watermark only when one |
| 4208 | * display plane is used. |
| 4209 | * |
| 4210 | * SNB support 3 levels of watermark. |
| 4211 | * |
| 4212 | * WM1/WM2/WM2 watermarks have to be enabled in the ascending order, |
| 4213 | * and disabled in the descending order |
| 4214 | * |
| 4215 | */ |
| 4216 | I915_WRITE(WM3_LP_ILK, 0); |
| 4217 | I915_WRITE(WM2_LP_ILK, 0); |
| 4218 | I915_WRITE(WM1_LP_ILK, 0); |
| 4219 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4220 | if (!single_plane_enabled(enabled)) |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4221 | return; |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4222 | enabled = ffs(enabled) - 1; |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4223 | |
| 4224 | /* WM1 */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4225 | if (!ironlake_compute_srwm(dev, 1, enabled, |
| 4226 | SNB_READ_WM1_LATENCY() * 500, |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4227 | &sandybridge_display_srwm_info, |
| 4228 | &sandybridge_cursor_srwm_info, |
| 4229 | &fbc_wm, &plane_wm, &cursor_wm)) |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4230 | return; |
| 4231 | |
| 4232 | I915_WRITE(WM1_LP_ILK, |
| 4233 | WM1_LP_SR_EN | |
| 4234 | (SNB_READ_WM1_LATENCY() << WM1_LP_LATENCY_SHIFT) | |
| 4235 | (fbc_wm << WM1_LP_FBC_SHIFT) | |
| 4236 | (plane_wm << WM1_LP_SR_SHIFT) | |
| 4237 | cursor_wm); |
| 4238 | |
| 4239 | /* WM2 */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4240 | if (!ironlake_compute_srwm(dev, 2, enabled, |
| 4241 | SNB_READ_WM2_LATENCY() * 500, |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4242 | &sandybridge_display_srwm_info, |
| 4243 | &sandybridge_cursor_srwm_info, |
| 4244 | &fbc_wm, &plane_wm, &cursor_wm)) |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4245 | return; |
| 4246 | |
| 4247 | I915_WRITE(WM2_LP_ILK, |
| 4248 | WM2_LP_EN | |
| 4249 | (SNB_READ_WM2_LATENCY() << WM1_LP_LATENCY_SHIFT) | |
| 4250 | (fbc_wm << WM1_LP_FBC_SHIFT) | |
| 4251 | (plane_wm << WM1_LP_SR_SHIFT) | |
| 4252 | cursor_wm); |
| 4253 | |
| 4254 | /* WM3 */ |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4255 | if (!ironlake_compute_srwm(dev, 3, enabled, |
| 4256 | SNB_READ_WM3_LATENCY() * 500, |
Jesse Barnes | b79d499 | 2010-12-21 13:10:23 -0800 | [diff] [blame] | 4257 | &sandybridge_display_srwm_info, |
| 4258 | &sandybridge_cursor_srwm_info, |
| 4259 | &fbc_wm, &plane_wm, &cursor_wm)) |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 4260 | return; |
| 4261 | |
| 4262 | I915_WRITE(WM3_LP_ILK, |
| 4263 | WM3_LP_EN | |
| 4264 | (SNB_READ_WM3_LATENCY() << WM1_LP_LATENCY_SHIFT) | |
| 4265 | (fbc_wm << WM1_LP_FBC_SHIFT) | |
| 4266 | (plane_wm << WM1_LP_SR_SHIFT) | |
| 4267 | cursor_wm); |
| 4268 | } |
| 4269 | |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 4270 | /** |
| 4271 | * intel_update_watermarks - update FIFO watermark values based on current modes |
| 4272 | * |
| 4273 | * Calculate watermark values for the various WM regs based on current mode |
| 4274 | * and plane configuration. |
| 4275 | * |
| 4276 | * There are several cases to deal with here: |
| 4277 | * - normal (i.e. non-self-refresh) |
| 4278 | * - self-refresh (SR) mode |
| 4279 | * - lines are large relative to FIFO size (buffer can hold up to 2) |
| 4280 | * - lines are small relative to FIFO size (buffer can hold more than 2 |
| 4281 | * lines), so need to account for TLB latency |
| 4282 | * |
| 4283 | * The normal calculation is: |
| 4284 | * watermark = dotclock * bytes per pixel * latency |
| 4285 | * where latency is platform & configuration dependent (we assume pessimal |
| 4286 | * values here). |
| 4287 | * |
| 4288 | * The SR calculation is: |
| 4289 | * watermark = (trunc(latency/line time)+1) * surface width * |
| 4290 | * bytes per pixel |
| 4291 | * where |
| 4292 | * line time = htotal / dotclock |
Zhao Yakui | fa14321 | 2010-06-12 14:32:23 +0800 | [diff] [blame] | 4293 | * surface width = hdisplay for normal plane and 64 for cursor |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 4294 | * and latency is assumed to be high, as above. |
| 4295 | * |
| 4296 | * The final value programmed to the register should always be rounded up, |
| 4297 | * and include an extra 2 entries to account for clock crossings. |
| 4298 | * |
| 4299 | * We don't use the sprite, so we can ignore that. And on Crestline we have |
| 4300 | * to set the non-SR watermarks to 8. |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4301 | */ |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 4302 | static void intel_update_watermarks(struct drm_device *dev) |
| 4303 | { |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 4304 | struct drm_i915_private *dev_priv = dev->dev_private; |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 4305 | |
Chris Wilson | d210246 | 2011-01-24 17:43:27 +0000 | [diff] [blame] | 4306 | if (dev_priv->display.update_wm) |
| 4307 | dev_priv->display.update_wm(dev); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 4308 | } |
| 4309 | |
Chris Wilson | a761503 | 2011-01-12 17:04:08 +0000 | [diff] [blame] | 4310 | static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) |
| 4311 | { |
Keith Packard | 435793d | 2011-07-12 14:56:22 -0700 | [diff] [blame] | 4312 | return dev_priv->lvds_use_ssc && i915_panel_use_ssc |
| 4313 | && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); |
Chris Wilson | a761503 | 2011-01-12 17:04:08 +0000 | [diff] [blame] | 4314 | } |
| 4315 | |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4316 | static int i9xx_crtc_mode_set(struct drm_crtc *crtc, |
| 4317 | struct drm_display_mode *mode, |
| 4318 | struct drm_display_mode *adjusted_mode, |
| 4319 | int x, int y, |
| 4320 | struct drm_framebuffer *old_fb) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4321 | { |
| 4322 | struct drm_device *dev = crtc->dev; |
| 4323 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 4324 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 4325 | int pipe = intel_crtc->pipe; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 4326 | int plane = intel_crtc->plane; |
Eric Anholt | c751ce4 | 2010-03-25 11:48:48 -0700 | [diff] [blame] | 4327 | int refclk, num_connectors = 0; |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 4328 | intel_clock_t clock, reduced_clock; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4329 | u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf; |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 4330 | bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false; |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 4331 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4332 | struct drm_mode_config *mode_config = &dev->mode_config; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4333 | struct intel_encoder *encoder; |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 4334 | const intel_limit_t *limit; |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 4335 | int ret; |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4336 | u32 temp; |
Bryan Freed | aa9b500 | 2011-01-12 13:43:19 -0800 | [diff] [blame] | 4337 | u32 lvds_sync = 0; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4338 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4339 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
| 4340 | if (encoder->base.crtc != crtc) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4341 | continue; |
| 4342 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4343 | switch (encoder->type) { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4344 | case INTEL_OUTPUT_LVDS: |
| 4345 | is_lvds = true; |
| 4346 | break; |
| 4347 | case INTEL_OUTPUT_SDVO: |
Eric Anholt | 7d57382 | 2009-01-02 13:33:00 -0800 | [diff] [blame] | 4348 | case INTEL_OUTPUT_HDMI: |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4349 | is_sdvo = true; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4350 | if (encoder->needs_tv_clock) |
Jesse Barnes | e2f0ba9 | 2009-02-02 15:11:52 -0800 | [diff] [blame] | 4351 | is_tv = true; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4352 | break; |
| 4353 | case INTEL_OUTPUT_DVO: |
| 4354 | is_dvo = true; |
| 4355 | break; |
| 4356 | case INTEL_OUTPUT_TVOUT: |
| 4357 | is_tv = true; |
| 4358 | break; |
| 4359 | case INTEL_OUTPUT_ANALOG: |
| 4360 | is_crt = true; |
| 4361 | break; |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 4362 | case INTEL_OUTPUT_DISPLAYPORT: |
| 4363 | is_dp = true; |
| 4364 | break; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4365 | } |
Kristian Høgsberg | 43565a0 | 2009-02-13 20:56:52 -0500 | [diff] [blame] | 4366 | |
Eric Anholt | c751ce4 | 2010-03-25 11:48:48 -0700 | [diff] [blame] | 4367 | num_connectors++; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4368 | } |
| 4369 | |
Chris Wilson | a761503 | 2011-01-12 17:04:08 +0000 | [diff] [blame] | 4370 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
Kristian Høgsberg | 43565a0 | 2009-02-13 20:56:52 -0500 | [diff] [blame] | 4371 | refclk = dev_priv->lvds_ssc_freq * 1000; |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 4372 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4373 | refclk / 1000); |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 4374 | } else if (!IS_GEN2(dev)) { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4375 | refclk = 96000; |
| 4376 | } else { |
| 4377 | refclk = 48000; |
| 4378 | } |
| 4379 | |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 4380 | /* |
| 4381 | * Returns a set of divisors for the desired target clock with the given |
| 4382 | * refclk, or FALSE. The returned values represent the clock equation: |
| 4383 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. |
| 4384 | */ |
Chris Wilson | 1b894b5 | 2010-12-14 20:04:54 +0000 | [diff] [blame] | 4385 | limit = intel_limit(crtc, refclk); |
Ma Ling | d490609 | 2009-03-18 20:13:27 +0800 | [diff] [blame] | 4386 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4387 | if (!ok) { |
| 4388 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4389 | return -EINVAL; |
| 4390 | } |
| 4391 | |
| 4392 | /* Ensure that the cursor is valid for the new mode before changing... */ |
| 4393 | intel_crtc_update_cursor(crtc, true); |
| 4394 | |
| 4395 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
| 4396 | has_reduced_clock = limit->find_pll(limit, crtc, |
| 4397 | dev_priv->lvds_downclock, |
| 4398 | refclk, |
| 4399 | &reduced_clock); |
| 4400 | if (has_reduced_clock && (clock.p != reduced_clock.p)) { |
| 4401 | /* |
| 4402 | * If the different P is found, it means that we can't |
| 4403 | * switch the display clock by using the FP0/FP1. |
| 4404 | * In such case we will disable the LVDS downclock |
| 4405 | * feature. |
| 4406 | */ |
| 4407 | DRM_DEBUG_KMS("Different P is found for " |
| 4408 | "LVDS clock/downclock\n"); |
| 4409 | has_reduced_clock = 0; |
| 4410 | } |
| 4411 | } |
| 4412 | /* SDVO TV has fixed PLL values depend on its clock range, |
| 4413 | this mirrors vbios setting. */ |
| 4414 | if (is_sdvo && is_tv) { |
| 4415 | if (adjusted_mode->clock >= 100000 |
| 4416 | && adjusted_mode->clock < 140500) { |
| 4417 | clock.p1 = 2; |
| 4418 | clock.p2 = 10; |
| 4419 | clock.n = 3; |
| 4420 | clock.m1 = 16; |
| 4421 | clock.m2 = 8; |
| 4422 | } else if (adjusted_mode->clock >= 140500 |
| 4423 | && adjusted_mode->clock <= 200000) { |
| 4424 | clock.p1 = 1; |
| 4425 | clock.p2 = 10; |
| 4426 | clock.n = 6; |
| 4427 | clock.m1 = 12; |
| 4428 | clock.m2 = 8; |
| 4429 | } |
| 4430 | } |
| 4431 | |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4432 | if (IS_PINEVIEW(dev)) { |
| 4433 | fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2; |
| 4434 | if (has_reduced_clock) |
| 4435 | fp2 = (1 << reduced_clock.n) << 16 | |
| 4436 | reduced_clock.m1 << 8 | reduced_clock.m2; |
| 4437 | } else { |
| 4438 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
| 4439 | if (has_reduced_clock) |
| 4440 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | |
| 4441 | reduced_clock.m2; |
| 4442 | } |
| 4443 | |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4444 | dpll = DPLL_VGA_MODE_DIS; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4445 | |
| 4446 | if (!IS_GEN2(dev)) { |
| 4447 | if (is_lvds) |
| 4448 | dpll |= DPLLB_MODE_LVDS; |
| 4449 | else |
| 4450 | dpll |= DPLLB_MODE_DAC_SERIAL; |
| 4451 | if (is_sdvo) { |
| 4452 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
| 4453 | if (pixel_multiplier > 1) { |
| 4454 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
| 4455 | dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4456 | } |
| 4457 | dpll |= DPLL_DVO_HIGH_SPEED; |
| 4458 | } |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4459 | if (is_dp) |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4460 | dpll |= DPLL_DVO_HIGH_SPEED; |
| 4461 | |
| 4462 | /* compute bitmask from p1 value */ |
| 4463 | if (IS_PINEVIEW(dev)) |
| 4464 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW; |
| 4465 | else { |
| 4466 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4467 | if (IS_G4X(dev) && has_reduced_clock) |
| 4468 | dpll |= (1 << (reduced_clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
| 4469 | } |
| 4470 | switch (clock.p2) { |
| 4471 | case 5: |
| 4472 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; |
| 4473 | break; |
| 4474 | case 7: |
| 4475 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; |
| 4476 | break; |
| 4477 | case 10: |
| 4478 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; |
| 4479 | break; |
| 4480 | case 14: |
| 4481 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; |
| 4482 | break; |
| 4483 | } |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4484 | if (INTEL_INFO(dev)->gen >= 4) |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4485 | dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT); |
| 4486 | } else { |
| 4487 | if (is_lvds) { |
| 4488 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
| 4489 | } else { |
| 4490 | if (clock.p1 == 2) |
| 4491 | dpll |= PLL_P1_DIVIDE_BY_TWO; |
| 4492 | else |
| 4493 | dpll |= (clock.p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
| 4494 | if (clock.p2 == 4) |
| 4495 | dpll |= PLL_P2_DIVIDE_BY_4; |
| 4496 | } |
| 4497 | } |
| 4498 | |
| 4499 | if (is_sdvo && is_tv) |
| 4500 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
| 4501 | else if (is_tv) |
| 4502 | /* XXX: just matching BIOS for now */ |
| 4503 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
| 4504 | dpll |= 3; |
| 4505 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
| 4506 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
| 4507 | else |
| 4508 | dpll |= PLL_REF_INPUT_DREFCLK; |
| 4509 | |
| 4510 | /* setup pipeconf */ |
| 4511 | pipeconf = I915_READ(PIPECONF(pipe)); |
| 4512 | |
| 4513 | /* Set up the display plane register */ |
| 4514 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
| 4515 | |
| 4516 | /* Ironlake's plane is forced to pipe, bit 24 is to |
| 4517 | enable color space conversion */ |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4518 | if (pipe == 0) |
| 4519 | dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; |
| 4520 | else |
| 4521 | dspcntr |= DISPPLANE_SEL_PIPE_B; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4522 | |
| 4523 | if (pipe == 0 && INTEL_INFO(dev)->gen < 4) { |
| 4524 | /* Enable pixel doubling when the dot clock is > 90% of the (display) |
| 4525 | * core speed. |
| 4526 | * |
| 4527 | * XXX: No double-wide on 915GM pipe B. Is that the only reason for the |
| 4528 | * pipe == 0 check? |
| 4529 | */ |
| 4530 | if (mode->clock > |
| 4531 | dev_priv->display.get_display_clock_speed(dev) * 9 / 10) |
| 4532 | pipeconf |= PIPECONF_DOUBLE_WIDE; |
| 4533 | else |
| 4534 | pipeconf &= ~PIPECONF_DOUBLE_WIDE; |
| 4535 | } |
| 4536 | |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4537 | dpll |= DPLL_VCO_ENABLE; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4538 | |
| 4539 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
| 4540 | drm_mode_debug_printmodeline(mode); |
| 4541 | |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4542 | I915_WRITE(FP0(pipe), fp); |
| 4543 | I915_WRITE(DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4544 | |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4545 | POSTING_READ(DPLL(pipe)); |
Eric Anholt | c713bb0 | 2011-03-30 13:01:05 -0700 | [diff] [blame] | 4546 | udelay(150); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4547 | |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4548 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
| 4549 | * This is an exception to the general rule that mode_set doesn't turn |
| 4550 | * things on. |
| 4551 | */ |
| 4552 | if (is_lvds) { |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4553 | temp = I915_READ(LVDS); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4554 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
| 4555 | if (pipe == 1) { |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4556 | temp |= LVDS_PIPEB_SELECT; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4557 | } else { |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4558 | temp &= ~LVDS_PIPEB_SELECT; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4559 | } |
| 4560 | /* set the corresponsding LVDS_BORDER bit */ |
| 4561 | temp |= dev_priv->lvds_border_bits; |
| 4562 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
| 4563 | * set the DPLLs for dual-channel mode or not. |
| 4564 | */ |
| 4565 | if (clock.p2 == 7) |
| 4566 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
| 4567 | else |
| 4568 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
| 4569 | |
| 4570 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) |
| 4571 | * appropriately here, but we need to look more thoroughly into how |
| 4572 | * panels behave in the two modes. |
| 4573 | */ |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4574 | /* set the dithering flag on LVDS as needed */ |
| 4575 | if (INTEL_INFO(dev)->gen >= 4) { |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4576 | if (dev_priv->lvds_dither) |
| 4577 | temp |= LVDS_ENABLE_DITHER; |
| 4578 | else |
| 4579 | temp &= ~LVDS_ENABLE_DITHER; |
| 4580 | } |
| 4581 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
| 4582 | lvds_sync |= LVDS_HSYNC_POLARITY; |
| 4583 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
| 4584 | lvds_sync |= LVDS_VSYNC_POLARITY; |
| 4585 | if ((temp & (LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY)) |
| 4586 | != lvds_sync) { |
| 4587 | char flags[2] = "-+"; |
| 4588 | DRM_INFO("Changing LVDS panel from " |
| 4589 | "(%chsync, %cvsync) to (%chsync, %cvsync)\n", |
| 4590 | flags[!(temp & LVDS_HSYNC_POLARITY)], |
| 4591 | flags[!(temp & LVDS_VSYNC_POLARITY)], |
| 4592 | flags[!(lvds_sync & LVDS_HSYNC_POLARITY)], |
| 4593 | flags[!(lvds_sync & LVDS_VSYNC_POLARITY)]); |
| 4594 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
| 4595 | temp |= lvds_sync; |
| 4596 | } |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4597 | I915_WRITE(LVDS, temp); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4598 | } |
| 4599 | |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4600 | if (is_dp) { |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4601 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4602 | } |
| 4603 | |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4604 | I915_WRITE(DPLL(pipe), dpll); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4605 | |
Eric Anholt | c713bb0 | 2011-03-30 13:01:05 -0700 | [diff] [blame] | 4606 | /* Wait for the clocks to stabilize. */ |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4607 | POSTING_READ(DPLL(pipe)); |
Eric Anholt | c713bb0 | 2011-03-30 13:01:05 -0700 | [diff] [blame] | 4608 | udelay(150); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4609 | |
Eric Anholt | c713bb0 | 2011-03-30 13:01:05 -0700 | [diff] [blame] | 4610 | if (INTEL_INFO(dev)->gen >= 4) { |
| 4611 | temp = 0; |
| 4612 | if (is_sdvo) { |
| 4613 | temp = intel_mode_get_pixel_multiplier(adjusted_mode); |
| 4614 | if (temp > 1) |
| 4615 | temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; |
| 4616 | else |
| 4617 | temp = 0; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4618 | } |
Eric Anholt | c713bb0 | 2011-03-30 13:01:05 -0700 | [diff] [blame] | 4619 | I915_WRITE(DPLL_MD(pipe), temp); |
| 4620 | } else { |
| 4621 | /* The pixel multiplier can only be updated once the |
| 4622 | * DPLL is enabled and the clocks are stable. |
| 4623 | * |
| 4624 | * So write it again. |
| 4625 | */ |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4626 | I915_WRITE(DPLL(pipe), dpll); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4627 | } |
| 4628 | |
| 4629 | intel_crtc->lowfreq_avail = false; |
| 4630 | if (is_lvds && has_reduced_clock && i915_powersave) { |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4631 | I915_WRITE(FP1(pipe), fp2); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4632 | intel_crtc->lowfreq_avail = true; |
| 4633 | if (HAS_PIPE_CXSR(dev)) { |
| 4634 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
| 4635 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
| 4636 | } |
| 4637 | } else { |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4638 | I915_WRITE(FP1(pipe), fp); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4639 | if (HAS_PIPE_CXSR(dev)) { |
| 4640 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
| 4641 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
| 4642 | } |
| 4643 | } |
| 4644 | |
| 4645 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
| 4646 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
| 4647 | /* the chip adds 2 halflines automatically */ |
| 4648 | adjusted_mode->crtc_vdisplay -= 1; |
| 4649 | adjusted_mode->crtc_vtotal -= 1; |
| 4650 | adjusted_mode->crtc_vblank_start -= 1; |
| 4651 | adjusted_mode->crtc_vblank_end -= 1; |
| 4652 | adjusted_mode->crtc_vsync_end -= 1; |
| 4653 | adjusted_mode->crtc_vsync_start -= 1; |
| 4654 | } else |
| 4655 | pipeconf &= ~PIPECONF_INTERLACE_W_FIELD_INDICATION; /* progressive */ |
| 4656 | |
| 4657 | I915_WRITE(HTOTAL(pipe), |
| 4658 | (adjusted_mode->crtc_hdisplay - 1) | |
| 4659 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
| 4660 | I915_WRITE(HBLANK(pipe), |
| 4661 | (adjusted_mode->crtc_hblank_start - 1) | |
| 4662 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
| 4663 | I915_WRITE(HSYNC(pipe), |
| 4664 | (adjusted_mode->crtc_hsync_start - 1) | |
| 4665 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
| 4666 | |
| 4667 | I915_WRITE(VTOTAL(pipe), |
| 4668 | (adjusted_mode->crtc_vdisplay - 1) | |
| 4669 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
| 4670 | I915_WRITE(VBLANK(pipe), |
| 4671 | (adjusted_mode->crtc_vblank_start - 1) | |
| 4672 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
| 4673 | I915_WRITE(VSYNC(pipe), |
| 4674 | (adjusted_mode->crtc_vsync_start - 1) | |
| 4675 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
| 4676 | |
| 4677 | /* pipesrc and dspsize control the size that is scaled from, |
| 4678 | * which should always be the user's requested size. |
| 4679 | */ |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4680 | I915_WRITE(DSPSIZE(plane), |
| 4681 | ((mode->vdisplay - 1) << 16) | |
| 4682 | (mode->hdisplay - 1)); |
| 4683 | I915_WRITE(DSPPOS(plane), 0); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4684 | I915_WRITE(PIPESRC(pipe), |
| 4685 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); |
| 4686 | |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4687 | I915_WRITE(PIPECONF(pipe), pipeconf); |
| 4688 | POSTING_READ(PIPECONF(pipe)); |
Eric Anholt | 929c77f | 2011-03-30 13:01:04 -0700 | [diff] [blame] | 4689 | intel_enable_pipe(dev_priv, pipe, false); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4690 | |
| 4691 | intel_wait_for_vblank(dev, pipe); |
| 4692 | |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4693 | I915_WRITE(DSPCNTR(plane), dspcntr); |
| 4694 | POSTING_READ(DSPCNTR(plane)); |
Keith Packard | efc2924 | 2011-06-06 17:12:49 -0700 | [diff] [blame] | 4695 | intel_enable_plane(dev_priv, plane, pipe); |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4696 | |
| 4697 | ret = intel_pipe_set_base(crtc, x, y, old_fb); |
| 4698 | |
| 4699 | intel_update_watermarks(dev); |
| 4700 | |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 4701 | return ret; |
| 4702 | } |
| 4703 | |
| 4704 | static int ironlake_crtc_mode_set(struct drm_crtc *crtc, |
| 4705 | struct drm_display_mode *mode, |
| 4706 | struct drm_display_mode *adjusted_mode, |
| 4707 | int x, int y, |
| 4708 | struct drm_framebuffer *old_fb) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4709 | { |
| 4710 | struct drm_device *dev = crtc->dev; |
| 4711 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 4712 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 4713 | int pipe = intel_crtc->pipe; |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 4714 | int plane = intel_crtc->plane; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4715 | int refclk, num_connectors = 0; |
| 4716 | intel_clock_t clock, reduced_clock; |
| 4717 | u32 dpll, fp = 0, fp2 = 0, dspcntr, pipeconf; |
Eric Anholt | a07d678 | 2011-03-30 13:01:08 -0700 | [diff] [blame] | 4718 | bool ok, has_reduced_clock = false, is_sdvo = false; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4719 | bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; |
| 4720 | struct intel_encoder *has_edp_encoder = NULL; |
| 4721 | struct drm_mode_config *mode_config = &dev->mode_config; |
| 4722 | struct intel_encoder *encoder; |
| 4723 | const intel_limit_t *limit; |
| 4724 | int ret; |
| 4725 | struct fdi_m_n m_n = {0}; |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 4726 | u32 temp; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4727 | u32 lvds_sync = 0; |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4728 | int target_clock, pixel_multiplier, lane, link_bw, bpp, factor; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4729 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4730 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) { |
| 4731 | if (encoder->base.crtc != crtc) |
| 4732 | continue; |
| 4733 | |
| 4734 | switch (encoder->type) { |
| 4735 | case INTEL_OUTPUT_LVDS: |
| 4736 | is_lvds = true; |
| 4737 | break; |
| 4738 | case INTEL_OUTPUT_SDVO: |
| 4739 | case INTEL_OUTPUT_HDMI: |
| 4740 | is_sdvo = true; |
| 4741 | if (encoder->needs_tv_clock) |
| 4742 | is_tv = true; |
| 4743 | break; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4744 | case INTEL_OUTPUT_TVOUT: |
| 4745 | is_tv = true; |
| 4746 | break; |
| 4747 | case INTEL_OUTPUT_ANALOG: |
| 4748 | is_crt = true; |
| 4749 | break; |
| 4750 | case INTEL_OUTPUT_DISPLAYPORT: |
| 4751 | is_dp = true; |
| 4752 | break; |
| 4753 | case INTEL_OUTPUT_EDP: |
| 4754 | has_edp_encoder = encoder; |
| 4755 | break; |
| 4756 | } |
| 4757 | |
Kristian Høgsberg | 43565a0 | 2009-02-13 20:56:52 -0500 | [diff] [blame] | 4758 | num_connectors++; |
| 4759 | } |
| 4760 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4761 | if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) { |
Kristian Høgsberg | 43565a0 | 2009-02-13 20:56:52 -0500 | [diff] [blame] | 4762 | refclk = dev_priv->lvds_ssc_freq * 1000; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4763 | DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", |
Kristian Høgsberg | 43565a0 | 2009-02-13 20:56:52 -0500 | [diff] [blame] | 4764 | refclk / 1000); |
Eric Anholt | a07d678 | 2011-03-30 13:01:08 -0700 | [diff] [blame] | 4765 | } else { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4766 | refclk = 96000; |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4767 | if (!has_edp_encoder || |
| 4768 | intel_encoder_is_pch_edp(&has_edp_encoder->base)) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4769 | refclk = 120000; /* 120Mhz refclk */ |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4770 | } |
| 4771 | |
| 4772 | /* |
| 4773 | * Returns a set of divisors for the desired target clock with the given |
| 4774 | * refclk, or FALSE. The returned values represent the clock equation: |
| 4775 | * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2. |
| 4776 | */ |
| 4777 | limit = intel_limit(crtc, refclk); |
| 4778 | ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk, &clock); |
| 4779 | if (!ok) { |
| 4780 | DRM_ERROR("Couldn't find PLL settings for mode!\n"); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4781 | return -EINVAL; |
| 4782 | } |
| 4783 | |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 4784 | /* Ensure that the cursor is valid for the new mode before changing... */ |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 4785 | intel_crtc_update_cursor(crtc, true); |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 4786 | |
Zhao Yakui | ddc9003 | 2010-01-06 22:05:56 +0800 | [diff] [blame] | 4787 | if (is_lvds && dev_priv->lvds_downclock_avail) { |
| 4788 | has_reduced_clock = limit->find_pll(limit, crtc, |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4789 | dev_priv->lvds_downclock, |
| 4790 | refclk, |
| 4791 | &reduced_clock); |
Zhao Yakui | 18f9ed1 | 2009-11-20 03:24:16 +0000 | [diff] [blame] | 4792 | if (has_reduced_clock && (clock.p != reduced_clock.p)) { |
| 4793 | /* |
| 4794 | * If the different P is found, it means that we can't |
| 4795 | * switch the display clock by using the FP0/FP1. |
| 4796 | * In such case we will disable the LVDS downclock |
| 4797 | * feature. |
| 4798 | */ |
| 4799 | DRM_DEBUG_KMS("Different P is found for " |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4800 | "LVDS clock/downclock\n"); |
Zhao Yakui | 18f9ed1 | 2009-11-20 03:24:16 +0000 | [diff] [blame] | 4801 | has_reduced_clock = 0; |
| 4802 | } |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 4803 | } |
Zhenyu Wang | 7026d4a | 2009-03-24 14:02:43 +0800 | [diff] [blame] | 4804 | /* SDVO TV has fixed PLL values depend on its clock range, |
| 4805 | this mirrors vbios setting. */ |
| 4806 | if (is_sdvo && is_tv) { |
| 4807 | if (adjusted_mode->clock >= 100000 |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4808 | && adjusted_mode->clock < 140500) { |
Zhenyu Wang | 7026d4a | 2009-03-24 14:02:43 +0800 | [diff] [blame] | 4809 | clock.p1 = 2; |
| 4810 | clock.p2 = 10; |
| 4811 | clock.n = 3; |
| 4812 | clock.m1 = 16; |
| 4813 | clock.m2 = 8; |
| 4814 | } else if (adjusted_mode->clock >= 140500 |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4815 | && adjusted_mode->clock <= 200000) { |
Zhenyu Wang | 7026d4a | 2009-03-24 14:02:43 +0800 | [diff] [blame] | 4816 | clock.p1 = 1; |
| 4817 | clock.p2 = 10; |
| 4818 | clock.n = 6; |
| 4819 | clock.m1 = 12; |
| 4820 | clock.m2 = 8; |
| 4821 | } |
| 4822 | } |
| 4823 | |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 4824 | /* FDI link */ |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4825 | pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
| 4826 | lane = 0; |
| 4827 | /* CPU eDP doesn't require FDI link, so just set DP M/N |
| 4828 | according to current link config */ |
| 4829 | if (has_edp_encoder && |
| 4830 | !intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
| 4831 | target_clock = mode->clock; |
| 4832 | intel_edp_link_config(has_edp_encoder, |
| 4833 | &lane, &link_bw); |
| 4834 | } else { |
| 4835 | /* [e]DP over FDI requires target mode clock |
| 4836 | instead of link clock */ |
| 4837 | if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base)) |
Zhenyu Wang | 5eb08b6 | 2009-07-24 01:00:31 +0800 | [diff] [blame] | 4838 | target_clock = mode->clock; |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4839 | else |
| 4840 | target_clock = adjusted_mode->clock; |
Chris Wilson | 021357a | 2010-09-07 20:54:59 +0100 | [diff] [blame] | 4841 | |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4842 | /* FDI is a binary signal running at ~2.7GHz, encoding |
| 4843 | * each output octet as 10 bits. The actual frequency |
| 4844 | * is stored as a divider into a 100MHz clock, and the |
| 4845 | * mode pixel clock is stored in units of 1KHz. |
| 4846 | * Hence the bw of each lane in terms of the mode signal |
| 4847 | * is: |
| 4848 | */ |
| 4849 | link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10; |
Zhenyu Wang | 5eb08b6 | 2009-07-24 01:00:31 +0800 | [diff] [blame] | 4850 | } |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 4851 | |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4852 | /* determine panel color depth */ |
| 4853 | temp = I915_READ(PIPECONF(pipe)); |
| 4854 | temp &= ~PIPE_BPC_MASK; |
| 4855 | if (is_lvds) { |
| 4856 | /* the BPC will be 6 if it is 18-bit LVDS panel */ |
| 4857 | if ((I915_READ(PCH_LVDS) & LVDS_A3_POWER_MASK) == LVDS_A3_POWER_UP) |
| 4858 | temp |= PIPE_8BPC; |
| 4859 | else |
| 4860 | temp |= PIPE_6BPC; |
| 4861 | } else if (has_edp_encoder) { |
| 4862 | switch (dev_priv->edp.bpp/3) { |
| 4863 | case 8: |
| 4864 | temp |= PIPE_8BPC; |
| 4865 | break; |
| 4866 | case 10: |
| 4867 | temp |= PIPE_10BPC; |
| 4868 | break; |
| 4869 | case 6: |
| 4870 | temp |= PIPE_6BPC; |
| 4871 | break; |
| 4872 | case 12: |
| 4873 | temp |= PIPE_12BPC; |
| 4874 | break; |
| 4875 | } |
| 4876 | } else |
| 4877 | temp |= PIPE_8BPC; |
| 4878 | I915_WRITE(PIPECONF(pipe), temp); |
| 4879 | |
| 4880 | switch (temp & PIPE_BPC_MASK) { |
| 4881 | case PIPE_8BPC: |
| 4882 | bpp = 24; |
| 4883 | break; |
| 4884 | case PIPE_10BPC: |
| 4885 | bpp = 30; |
| 4886 | break; |
| 4887 | case PIPE_6BPC: |
| 4888 | bpp = 18; |
| 4889 | break; |
| 4890 | case PIPE_12BPC: |
| 4891 | bpp = 36; |
| 4892 | break; |
| 4893 | default: |
| 4894 | DRM_ERROR("unknown pipe bpc value\n"); |
| 4895 | bpp = 24; |
| 4896 | } |
| 4897 | |
| 4898 | if (!lane) { |
| 4899 | /* |
| 4900 | * Account for spread spectrum to avoid |
| 4901 | * oversubscribing the link. Max center spread |
| 4902 | * is 2.5%; use 5% for safety's sake. |
| 4903 | */ |
| 4904 | u32 bps = target_clock * bpp * 21 / 20; |
| 4905 | lane = bps / (link_bw * 8) + 1; |
| 4906 | } |
| 4907 | |
| 4908 | intel_crtc->fdi_lanes = lane; |
| 4909 | |
| 4910 | if (pixel_multiplier > 1) |
| 4911 | link_bw *= pixel_multiplier; |
| 4912 | ironlake_compute_m_n(bpp, lane, target_clock, link_bw, &m_n); |
| 4913 | |
Zhenyu Wang | c038e51 | 2009-10-19 15:43:48 +0800 | [diff] [blame] | 4914 | /* Ironlake: try to setup display ref clock before DPLL |
| 4915 | * enabling. This is only under driver's control after |
| 4916 | * PCH B stepping, previous chipset stepping should be |
| 4917 | * ignoring this setting. |
| 4918 | */ |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4919 | temp = I915_READ(PCH_DREF_CONTROL); |
| 4920 | /* Always enable nonspread source */ |
| 4921 | temp &= ~DREF_NONSPREAD_SOURCE_MASK; |
| 4922 | temp |= DREF_NONSPREAD_SOURCE_ENABLE; |
| 4923 | temp &= ~DREF_SSC_SOURCE_MASK; |
| 4924 | temp |= DREF_SSC_SOURCE_ENABLE; |
| 4925 | I915_WRITE(PCH_DREF_CONTROL, temp); |
Chris Wilson | fc9a222 | 2011-02-17 17:14:34 +0000 | [diff] [blame] | 4926 | |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4927 | POSTING_READ(PCH_DREF_CONTROL); |
| 4928 | udelay(200); |
Chris Wilson | fc9a222 | 2011-02-17 17:14:34 +0000 | [diff] [blame] | 4929 | |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4930 | if (has_edp_encoder) { |
| 4931 | if (intel_panel_use_ssc(dev_priv)) { |
| 4932 | temp |= DREF_SSC1_ENABLE; |
Chris Wilson | fc9a222 | 2011-02-17 17:14:34 +0000 | [diff] [blame] | 4933 | I915_WRITE(PCH_DREF_CONTROL, temp); |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4934 | |
Chris Wilson | fc9a222 | 2011-02-17 17:14:34 +0000 | [diff] [blame] | 4935 | POSTING_READ(PCH_DREF_CONTROL); |
| 4936 | udelay(200); |
| 4937 | } |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4938 | temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK; |
| 4939 | |
| 4940 | /* Enable CPU source on CPU attached eDP */ |
| 4941 | if (!intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
| 4942 | if (intel_panel_use_ssc(dev_priv)) |
| 4943 | temp |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD; |
| 4944 | else |
| 4945 | temp |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD; |
| 4946 | } else { |
| 4947 | /* Enable SSC on PCH eDP if needed */ |
| 4948 | if (intel_panel_use_ssc(dev_priv)) { |
| 4949 | DRM_ERROR("enabling SSC on PCH\n"); |
| 4950 | temp |= DREF_SUPERSPREAD_SOURCE_ENABLE; |
| 4951 | } |
| 4952 | } |
| 4953 | I915_WRITE(PCH_DREF_CONTROL, temp); |
| 4954 | POSTING_READ(PCH_DREF_CONTROL); |
| 4955 | udelay(200); |
Chris Wilson | fc9a222 | 2011-02-17 17:14:34 +0000 | [diff] [blame] | 4956 | } |
Zhenyu Wang | c038e51 | 2009-10-19 15:43:48 +0800 | [diff] [blame] | 4957 | |
Eric Anholt | a07d678 | 2011-03-30 13:01:08 -0700 | [diff] [blame] | 4958 | fp = clock.n << 16 | clock.m1 << 8 | clock.m2; |
| 4959 | if (has_reduced_clock) |
| 4960 | fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | |
| 4961 | reduced_clock.m2; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4962 | |
Chris Wilson | c185812 | 2010-12-03 21:35:48 +0000 | [diff] [blame] | 4963 | /* Enable autotuning of the PLL clock (if permissible) */ |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4964 | factor = 21; |
| 4965 | if (is_lvds) { |
| 4966 | if ((intel_panel_use_ssc(dev_priv) && |
| 4967 | dev_priv->lvds_ssc_freq == 100) || |
| 4968 | (I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) |
| 4969 | factor = 25; |
| 4970 | } else if (is_sdvo && is_tv) |
| 4971 | factor = 20; |
Chris Wilson | c185812 | 2010-12-03 21:35:48 +0000 | [diff] [blame] | 4972 | |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 4973 | if (clock.m1 < factor * clock.n) |
| 4974 | fp |= FP_CB_TUNE; |
Chris Wilson | c185812 | 2010-12-03 21:35:48 +0000 | [diff] [blame] | 4975 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 4976 | dpll = 0; |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 4977 | |
Eric Anholt | a07d678 | 2011-03-30 13:01:08 -0700 | [diff] [blame] | 4978 | if (is_lvds) |
| 4979 | dpll |= DPLLB_MODE_LVDS; |
| 4980 | else |
| 4981 | dpll |= DPLLB_MODE_DAC_SERIAL; |
| 4982 | if (is_sdvo) { |
| 4983 | int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); |
| 4984 | if (pixel_multiplier > 1) { |
| 4985 | dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4986 | } |
Eric Anholt | a07d678 | 2011-03-30 13:01:08 -0700 | [diff] [blame] | 4987 | dpll |= DPLL_DVO_HIGH_SPEED; |
| 4988 | } |
| 4989 | if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base)) |
| 4990 | dpll |= DPLL_DVO_HIGH_SPEED; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 4991 | |
Eric Anholt | a07d678 | 2011-03-30 13:01:08 -0700 | [diff] [blame] | 4992 | /* compute bitmask from p1 value */ |
| 4993 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; |
| 4994 | /* also FPA1 */ |
| 4995 | dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; |
| 4996 | |
| 4997 | switch (clock.p2) { |
| 4998 | case 5: |
| 4999 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; |
| 5000 | break; |
| 5001 | case 7: |
| 5002 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7; |
| 5003 | break; |
| 5004 | case 10: |
| 5005 | dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10; |
| 5006 | break; |
| 5007 | case 14: |
| 5008 | dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14; |
| 5009 | break; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5010 | } |
| 5011 | |
| 5012 | if (is_sdvo && is_tv) |
| 5013 | dpll |= PLL_REF_INPUT_TVCLKINBC; |
| 5014 | else if (is_tv) |
| 5015 | /* XXX: just matching BIOS for now */ |
| 5016 | /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
| 5017 | dpll |= 3; |
Chris Wilson | a761503 | 2011-01-12 17:04:08 +0000 | [diff] [blame] | 5018 | else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5019 | dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
| 5020 | else |
| 5021 | dpll |= PLL_REF_INPUT_DREFCLK; |
| 5022 | |
| 5023 | /* setup pipeconf */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5024 | pipeconf = I915_READ(PIPECONF(pipe)); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5025 | |
| 5026 | /* Set up the display plane register */ |
| 5027 | dspcntr = DISPPLANE_GAMMA_ENABLE; |
| 5028 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 5029 | DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B'); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5030 | drm_mode_debug_printmodeline(mode); |
| 5031 | |
Jesse Barnes | 5c5313c | 2010-10-07 16:01:11 -0700 | [diff] [blame] | 5032 | /* PCH eDP needs FDI, but CPU eDP does not */ |
| 5033 | if (!has_edp_encoder || intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 5034 | I915_WRITE(PCH_FP0(pipe), fp); |
| 5035 | I915_WRITE(PCH_DPLL(pipe), dpll & ~DPLL_VCO_ENABLE); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5036 | |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 5037 | POSTING_READ(PCH_DPLL(pipe)); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5038 | udelay(150); |
| 5039 | } |
| 5040 | |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 5041 | /* enable transcoder DPLL */ |
| 5042 | if (HAS_PCH_CPT(dev)) { |
| 5043 | temp = I915_READ(PCH_DPLL_SEL); |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5044 | switch (pipe) { |
| 5045 | case 0: |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5046 | temp |= TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL; |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5047 | break; |
| 5048 | case 1: |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5049 | temp |= TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL; |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5050 | break; |
| 5051 | case 2: |
| 5052 | /* FIXME: manage transcoder PLLs? */ |
| 5053 | temp |= TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL; |
| 5054 | break; |
| 5055 | default: |
| 5056 | BUG(); |
| 5057 | } |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 5058 | I915_WRITE(PCH_DPLL_SEL, temp); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5059 | |
| 5060 | POSTING_READ(PCH_DPLL_SEL); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 5061 | udelay(150); |
| 5062 | } |
| 5063 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5064 | /* The LVDS pin pair needs to be on before the DPLLs are enabled. |
| 5065 | * This is an exception to the general rule that mode_set doesn't turn |
| 5066 | * things on. |
| 5067 | */ |
| 5068 | if (is_lvds) { |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 5069 | temp = I915_READ(PCH_LVDS); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5070 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
Zhenyu Wang | b3b095b | 2010-04-07 16:15:56 +0800 | [diff] [blame] | 5071 | if (pipe == 1) { |
| 5072 | if (HAS_PCH_CPT(dev)) |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5073 | temp |= PORT_TRANS_B_SEL_CPT; |
Zhenyu Wang | b3b095b | 2010-04-07 16:15:56 +0800 | [diff] [blame] | 5074 | else |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5075 | temp |= LVDS_PIPEB_SELECT; |
Zhenyu Wang | b3b095b | 2010-04-07 16:15:56 +0800 | [diff] [blame] | 5076 | } else { |
| 5077 | if (HAS_PCH_CPT(dev)) |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5078 | temp &= ~PORT_TRANS_SEL_MASK; |
Zhenyu Wang | b3b095b | 2010-04-07 16:15:56 +0800 | [diff] [blame] | 5079 | else |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5080 | temp &= ~LVDS_PIPEB_SELECT; |
Zhenyu Wang | b3b095b | 2010-04-07 16:15:56 +0800 | [diff] [blame] | 5081 | } |
Zhao Yakui | a3e17eb | 2009-10-10 10:42:37 +0800 | [diff] [blame] | 5082 | /* set the corresponsding LVDS_BORDER bit */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5083 | temp |= dev_priv->lvds_border_bits; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5084 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
| 5085 | * set the DPLLs for dual-channel mode or not. |
| 5086 | */ |
| 5087 | if (clock.p2 == 7) |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5088 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5089 | else |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5090 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5091 | |
| 5092 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) |
| 5093 | * appropriately here, but we need to look more thoroughly into how |
| 5094 | * panels behave in the two modes. |
| 5095 | */ |
Bryan Freed | aa9b500 | 2011-01-12 13:43:19 -0800 | [diff] [blame] | 5096 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
| 5097 | lvds_sync |= LVDS_HSYNC_POLARITY; |
| 5098 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
| 5099 | lvds_sync |= LVDS_VSYNC_POLARITY; |
| 5100 | if ((temp & (LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY)) |
| 5101 | != lvds_sync) { |
| 5102 | char flags[2] = "-+"; |
| 5103 | DRM_INFO("Changing LVDS panel from " |
| 5104 | "(%chsync, %cvsync) to (%chsync, %cvsync)\n", |
| 5105 | flags[!(temp & LVDS_HSYNC_POLARITY)], |
| 5106 | flags[!(temp & LVDS_VSYNC_POLARITY)], |
| 5107 | flags[!(lvds_sync & LVDS_HSYNC_POLARITY)], |
| 5108 | flags[!(lvds_sync & LVDS_VSYNC_POLARITY)]); |
| 5109 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
| 5110 | temp |= lvds_sync; |
| 5111 | } |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 5112 | I915_WRITE(PCH_LVDS, temp); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5113 | } |
Jesse Barnes | 434ed09 | 2010-09-07 14:48:06 -0700 | [diff] [blame] | 5114 | |
| 5115 | /* set the dithering flag and clear for anything other than a panel. */ |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 5116 | pipeconf &= ~PIPECONF_DITHER_EN; |
| 5117 | pipeconf &= ~PIPECONF_DITHER_TYPE_MASK; |
| 5118 | if (dev_priv->lvds_dither && (is_lvds || has_edp_encoder)) { |
| 5119 | pipeconf |= PIPECONF_DITHER_EN; |
| 5120 | pipeconf |= PIPECONF_DITHER_TYPE_ST1; |
Jesse Barnes | 434ed09 | 2010-09-07 14:48:06 -0700 | [diff] [blame] | 5121 | } |
| 5122 | |
Jesse Barnes | 5c5313c | 2010-10-07 16:01:11 -0700 | [diff] [blame] | 5123 | if (is_dp || intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 5124 | intel_dp_set_m_n(crtc, mode, adjusted_mode); |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 5125 | } else { |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 5126 | /* For non-DP output, clear any trans DP clock recovery setting.*/ |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5127 | I915_WRITE(TRANSDATA_M1(pipe), 0); |
| 5128 | I915_WRITE(TRANSDATA_N1(pipe), 0); |
| 5129 | I915_WRITE(TRANSDPLINK_M1(pipe), 0); |
| 5130 | I915_WRITE(TRANSDPLINK_N1(pipe), 0); |
Zhenyu Wang | 8db9d77b | 2010-04-07 16:15:54 +0800 | [diff] [blame] | 5131 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5132 | |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 5133 | if (!has_edp_encoder || |
| 5134 | intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 5135 | I915_WRITE(PCH_DPLL(pipe), dpll); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5136 | |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 5137 | /* Wait for the clocks to stabilize. */ |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 5138 | POSTING_READ(PCH_DPLL(pipe)); |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 5139 | udelay(150); |
| 5140 | |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 5141 | /* The pixel multiplier can only be updated once the |
| 5142 | * DPLL is enabled and the clocks are stable. |
| 5143 | * |
| 5144 | * So write it again. |
| 5145 | */ |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 5146 | I915_WRITE(PCH_DPLL(pipe), dpll); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5147 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5148 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5149 | intel_crtc->lowfreq_avail = false; |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5150 | if (is_lvds && has_reduced_clock && i915_powersave) { |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 5151 | I915_WRITE(PCH_FP1(pipe), fp2); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5152 | intel_crtc->lowfreq_avail = true; |
| 5153 | if (HAS_PIPE_CXSR(dev)) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 5154 | DRM_DEBUG_KMS("enabling CxSR downclocking\n"); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5155 | pipeconf |= PIPECONF_CXSR_DOWNCLOCK; |
| 5156 | } |
| 5157 | } else { |
Eric Anholt | fae1498 | 2011-03-30 13:01:09 -0700 | [diff] [blame] | 5158 | I915_WRITE(PCH_FP1(pipe), fp); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5159 | if (HAS_PIPE_CXSR(dev)) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 5160 | DRM_DEBUG_KMS("disabling CxSR downclocking\n"); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5161 | pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; |
| 5162 | } |
| 5163 | } |
| 5164 | |
Krzysztof Halasa | 734b415 | 2010-05-25 18:41:46 +0200 | [diff] [blame] | 5165 | if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { |
| 5166 | pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; |
| 5167 | /* the chip adds 2 halflines automatically */ |
| 5168 | adjusted_mode->crtc_vdisplay -= 1; |
| 5169 | adjusted_mode->crtc_vtotal -= 1; |
| 5170 | adjusted_mode->crtc_vblank_start -= 1; |
| 5171 | adjusted_mode->crtc_vblank_end -= 1; |
| 5172 | adjusted_mode->crtc_vsync_end -= 1; |
| 5173 | adjusted_mode->crtc_vsync_start -= 1; |
| 5174 | } else |
| 5175 | pipeconf &= ~PIPECONF_INTERLACE_W_FIELD_INDICATION; /* progressive */ |
| 5176 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5177 | I915_WRITE(HTOTAL(pipe), |
| 5178 | (adjusted_mode->crtc_hdisplay - 1) | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5179 | ((adjusted_mode->crtc_htotal - 1) << 16)); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5180 | I915_WRITE(HBLANK(pipe), |
| 5181 | (adjusted_mode->crtc_hblank_start - 1) | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5182 | ((adjusted_mode->crtc_hblank_end - 1) << 16)); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5183 | I915_WRITE(HSYNC(pipe), |
| 5184 | (adjusted_mode->crtc_hsync_start - 1) | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5185 | ((adjusted_mode->crtc_hsync_end - 1) << 16)); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5186 | |
| 5187 | I915_WRITE(VTOTAL(pipe), |
| 5188 | (adjusted_mode->crtc_vdisplay - 1) | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5189 | ((adjusted_mode->crtc_vtotal - 1) << 16)); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5190 | I915_WRITE(VBLANK(pipe), |
| 5191 | (adjusted_mode->crtc_vblank_start - 1) | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5192 | ((adjusted_mode->crtc_vblank_end - 1) << 16)); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5193 | I915_WRITE(VSYNC(pipe), |
| 5194 | (adjusted_mode->crtc_vsync_start - 1) | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5195 | ((adjusted_mode->crtc_vsync_end - 1) << 16)); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5196 | |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 5197 | /* pipesrc controls the size that is scaled from, which should |
| 5198 | * always be the user's requested size. |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5199 | */ |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5200 | I915_WRITE(PIPESRC(pipe), |
| 5201 | ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 5202 | |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 5203 | I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m); |
| 5204 | I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n); |
| 5205 | I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m); |
| 5206 | I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n); |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 5207 | |
Eric Anholt | 8febb29 | 2011-03-30 13:01:07 -0700 | [diff] [blame] | 5208 | if (has_edp_encoder && |
| 5209 | !intel_encoder_is_pch_edp(&has_edp_encoder->base)) { |
| 5210 | ironlake_set_pll_edp(crtc, adjusted_mode->clock); |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 5211 | } |
| 5212 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5213 | I915_WRITE(PIPECONF(pipe), pipeconf); |
| 5214 | POSTING_READ(PIPECONF(pipe)); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5215 | |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 5216 | intel_wait_for_vblank(dev, pipe); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5217 | |
Chris Wilson | f00a3dd | 2010-10-21 14:57:17 +0100 | [diff] [blame] | 5218 | if (IS_GEN5(dev)) { |
Zhenyu Wang | 553bd14 | 2009-09-02 10:57:52 +0800 | [diff] [blame] | 5219 | /* enable address swizzle for tiling buffer */ |
| 5220 | temp = I915_READ(DISP_ARB_CTL); |
| 5221 | I915_WRITE(DISP_ARB_CTL, temp | DISP_TILE_SURFACE_SWIZZLING); |
| 5222 | } |
| 5223 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 5224 | I915_WRITE(DSPCNTR(plane), dspcntr); |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 5225 | POSTING_READ(DSPCNTR(plane)); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5226 | |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 5227 | ret = intel_pipe_set_base(crtc, x, y, old_fb); |
Shaohua Li | 7662c8b | 2009-06-26 11:23:55 +0800 | [diff] [blame] | 5228 | |
| 5229 | intel_update_watermarks(dev); |
| 5230 | |
Chris Wilson | 1f803ee | 2009-06-06 09:45:59 +0100 | [diff] [blame] | 5231 | return ret; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5232 | } |
| 5233 | |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 5234 | static int intel_crtc_mode_set(struct drm_crtc *crtc, |
| 5235 | struct drm_display_mode *mode, |
| 5236 | struct drm_display_mode *adjusted_mode, |
| 5237 | int x, int y, |
| 5238 | struct drm_framebuffer *old_fb) |
| 5239 | { |
| 5240 | struct drm_device *dev = crtc->dev; |
| 5241 | struct drm_i915_private *dev_priv = dev->dev_private; |
Eric Anholt | 0b701d2 | 2011-03-30 13:01:03 -0700 | [diff] [blame] | 5242 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 5243 | int pipe = intel_crtc->pipe; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 5244 | int ret; |
| 5245 | |
Eric Anholt | 0b701d2 | 2011-03-30 13:01:03 -0700 | [diff] [blame] | 5246 | drm_vblank_pre_modeset(dev, pipe); |
| 5247 | |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 5248 | ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, |
| 5249 | x, y, old_fb); |
| 5250 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5251 | drm_vblank_post_modeset(dev, pipe); |
| 5252 | |
| 5253 | return ret; |
| 5254 | } |
| 5255 | |
| 5256 | /** Loads the palette/gamma unit for the CRTC with the prepared values */ |
| 5257 | void intel_crtc_load_lut(struct drm_crtc *crtc) |
| 5258 | { |
| 5259 | struct drm_device *dev = crtc->dev; |
| 5260 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 5261 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5262 | int palreg = PALETTE(intel_crtc->pipe); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5263 | int i; |
| 5264 | |
| 5265 | /* The clocks have to be on to load the palette. */ |
| 5266 | if (!crtc->enabled) |
| 5267 | return; |
| 5268 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 5269 | /* use legacy palette for Ironlake */ |
Eric Anholt | bad720f | 2009-10-22 16:11:14 -0700 | [diff] [blame] | 5270 | if (HAS_PCH_SPLIT(dev)) |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5271 | palreg = LGC_PALETTE(intel_crtc->pipe); |
Zhenyu Wang | 2c07245 | 2009-06-05 15:38:42 +0800 | [diff] [blame] | 5272 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5273 | for (i = 0; i < 256; i++) { |
| 5274 | I915_WRITE(palreg + 4 * i, |
| 5275 | (intel_crtc->lut_r[i] << 16) | |
| 5276 | (intel_crtc->lut_g[i] << 8) | |
| 5277 | intel_crtc->lut_b[i]); |
| 5278 | } |
| 5279 | } |
| 5280 | |
Chris Wilson | 560b85b | 2010-08-07 11:01:38 +0100 | [diff] [blame] | 5281 | static void i845_update_cursor(struct drm_crtc *crtc, u32 base) |
| 5282 | { |
| 5283 | struct drm_device *dev = crtc->dev; |
| 5284 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 5285 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 5286 | bool visible = base != 0; |
| 5287 | u32 cntl; |
| 5288 | |
| 5289 | if (intel_crtc->cursor_visible == visible) |
| 5290 | return; |
| 5291 | |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5292 | cntl = I915_READ(_CURACNTR); |
Chris Wilson | 560b85b | 2010-08-07 11:01:38 +0100 | [diff] [blame] | 5293 | if (visible) { |
| 5294 | /* On these chipsets we can only modify the base whilst |
| 5295 | * the cursor is disabled. |
| 5296 | */ |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5297 | I915_WRITE(_CURABASE, base); |
Chris Wilson | 560b85b | 2010-08-07 11:01:38 +0100 | [diff] [blame] | 5298 | |
| 5299 | cntl &= ~(CURSOR_FORMAT_MASK); |
| 5300 | /* XXX width must be 64, stride 256 => 0x00 << 28 */ |
| 5301 | cntl |= CURSOR_ENABLE | |
| 5302 | CURSOR_GAMMA_ENABLE | |
| 5303 | CURSOR_FORMAT_ARGB; |
| 5304 | } else |
| 5305 | cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE); |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5306 | I915_WRITE(_CURACNTR, cntl); |
Chris Wilson | 560b85b | 2010-08-07 11:01:38 +0100 | [diff] [blame] | 5307 | |
| 5308 | intel_crtc->cursor_visible = visible; |
| 5309 | } |
| 5310 | |
| 5311 | static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) |
| 5312 | { |
| 5313 | struct drm_device *dev = crtc->dev; |
| 5314 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 5315 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 5316 | int pipe = intel_crtc->pipe; |
| 5317 | bool visible = base != 0; |
| 5318 | |
| 5319 | if (intel_crtc->cursor_visible != visible) { |
Jesse Barnes | 548f245 | 2011-02-17 10:40:53 -0800 | [diff] [blame] | 5320 | uint32_t cntl = I915_READ(CURCNTR(pipe)); |
Chris Wilson | 560b85b | 2010-08-07 11:01:38 +0100 | [diff] [blame] | 5321 | if (base) { |
| 5322 | cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT); |
| 5323 | cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE; |
| 5324 | cntl |= pipe << 28; /* Connect to correct pipe */ |
| 5325 | } else { |
| 5326 | cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE); |
| 5327 | cntl |= CURSOR_MODE_DISABLE; |
| 5328 | } |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5329 | I915_WRITE(CURCNTR(pipe), cntl); |
Chris Wilson | 560b85b | 2010-08-07 11:01:38 +0100 | [diff] [blame] | 5330 | |
| 5331 | intel_crtc->cursor_visible = visible; |
| 5332 | } |
| 5333 | /* and commit changes on next vblank */ |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5334 | I915_WRITE(CURBASE(pipe), base); |
Chris Wilson | 560b85b | 2010-08-07 11:01:38 +0100 | [diff] [blame] | 5335 | } |
| 5336 | |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 5337 | /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 5338 | static void intel_crtc_update_cursor(struct drm_crtc *crtc, |
| 5339 | bool on) |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 5340 | { |
| 5341 | struct drm_device *dev = crtc->dev; |
| 5342 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 5343 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 5344 | int pipe = intel_crtc->pipe; |
| 5345 | int x = intel_crtc->cursor_x; |
| 5346 | int y = intel_crtc->cursor_y; |
Chris Wilson | 560b85b | 2010-08-07 11:01:38 +0100 | [diff] [blame] | 5347 | u32 base, pos; |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 5348 | bool visible; |
| 5349 | |
| 5350 | pos = 0; |
| 5351 | |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 5352 | if (on && crtc->enabled && crtc->fb) { |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 5353 | base = intel_crtc->cursor_addr; |
| 5354 | if (x > (int) crtc->fb->width) |
| 5355 | base = 0; |
| 5356 | |
| 5357 | if (y > (int) crtc->fb->height) |
| 5358 | base = 0; |
| 5359 | } else |
| 5360 | base = 0; |
| 5361 | |
| 5362 | if (x < 0) { |
| 5363 | if (x + intel_crtc->cursor_width < 0) |
| 5364 | base = 0; |
| 5365 | |
| 5366 | pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; |
| 5367 | x = -x; |
| 5368 | } |
| 5369 | pos |= x << CURSOR_X_SHIFT; |
| 5370 | |
| 5371 | if (y < 0) { |
| 5372 | if (y + intel_crtc->cursor_height < 0) |
| 5373 | base = 0; |
| 5374 | |
| 5375 | pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT; |
| 5376 | y = -y; |
| 5377 | } |
| 5378 | pos |= y << CURSOR_Y_SHIFT; |
| 5379 | |
| 5380 | visible = base != 0; |
Chris Wilson | 560b85b | 2010-08-07 11:01:38 +0100 | [diff] [blame] | 5381 | if (!visible && !intel_crtc->cursor_visible) |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 5382 | return; |
| 5383 | |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 5384 | I915_WRITE(CURPOS(pipe), pos); |
Chris Wilson | 560b85b | 2010-08-07 11:01:38 +0100 | [diff] [blame] | 5385 | if (IS_845G(dev) || IS_I865G(dev)) |
| 5386 | i845_update_cursor(crtc, base); |
| 5387 | else |
| 5388 | i9xx_update_cursor(crtc, base); |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 5389 | |
| 5390 | if (visible) |
| 5391 | intel_mark_busy(dev, to_intel_framebuffer(crtc->fb)->obj); |
| 5392 | } |
| 5393 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5394 | static int intel_crtc_cursor_set(struct drm_crtc *crtc, |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5395 | struct drm_file *file, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5396 | uint32_t handle, |
| 5397 | uint32_t width, uint32_t height) |
| 5398 | { |
| 5399 | struct drm_device *dev = crtc->dev; |
| 5400 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 5401 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5402 | struct drm_i915_gem_object *obj; |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 5403 | uint32_t addr; |
Kristian Høgsberg | 3f8bc37 | 2008-12-17 22:14:59 -0500 | [diff] [blame] | 5404 | int ret; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5405 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 5406 | DRM_DEBUG_KMS("\n"); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5407 | |
| 5408 | /* if we want to turn off the cursor ignore width and height */ |
| 5409 | if (!handle) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 5410 | DRM_DEBUG_KMS("cursor off\n"); |
Kristian Høgsberg | 3f8bc37 | 2008-12-17 22:14:59 -0500 | [diff] [blame] | 5411 | addr = 0; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5412 | obj = NULL; |
Pierre Willenbrock | 5004417 | 2009-02-23 10:12:15 +1000 | [diff] [blame] | 5413 | mutex_lock(&dev->struct_mutex); |
Kristian Høgsberg | 3f8bc37 | 2008-12-17 22:14:59 -0500 | [diff] [blame] | 5414 | goto finish; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5415 | } |
| 5416 | |
| 5417 | /* Currently we only support 64x64 cursors */ |
| 5418 | if (width != 64 || height != 64) { |
| 5419 | DRM_ERROR("we currently only support 64x64 cursors\n"); |
| 5420 | return -EINVAL; |
| 5421 | } |
| 5422 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5423 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
Chris Wilson | c872522 | 2011-02-19 11:31:06 +0000 | [diff] [blame] | 5424 | if (&obj->base == NULL) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5425 | return -ENOENT; |
| 5426 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5427 | if (obj->base.size < width * height * 4) { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5428 | DRM_ERROR("buffer is to small\n"); |
Dave Airlie | 34b8686e | 2009-01-15 14:03:07 +1000 | [diff] [blame] | 5429 | ret = -ENOMEM; |
| 5430 | goto fail; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5431 | } |
| 5432 | |
Dave Airlie | 71acb5e | 2008-12-30 20:31:46 +1000 | [diff] [blame] | 5433 | /* we only need to pin inside GTT if cursor is non-phy */ |
Kristian Høgsberg | 7f9872e | 2009-02-13 20:56:49 -0500 | [diff] [blame] | 5434 | mutex_lock(&dev->struct_mutex); |
Kristian Høgsberg | b295d1b | 2009-12-16 15:16:17 -0500 | [diff] [blame] | 5435 | if (!dev_priv->info->cursor_needs_physical) { |
Chris Wilson | d9e86c0 | 2010-11-10 16:40:20 +0000 | [diff] [blame] | 5436 | if (obj->tiling_mode) { |
| 5437 | DRM_ERROR("cursor cannot be tiled\n"); |
| 5438 | ret = -EINVAL; |
| 5439 | goto fail_locked; |
| 5440 | } |
| 5441 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5442 | ret = i915_gem_object_pin(obj, PAGE_SIZE, true); |
Dave Airlie | 71acb5e | 2008-12-30 20:31:46 +1000 | [diff] [blame] | 5443 | if (ret) { |
| 5444 | DRM_ERROR("failed to pin cursor bo\n"); |
Kristian Høgsberg | 7f9872e | 2009-02-13 20:56:49 -0500 | [diff] [blame] | 5445 | goto fail_locked; |
Dave Airlie | 71acb5e | 2008-12-30 20:31:46 +1000 | [diff] [blame] | 5446 | } |
Chris Wilson | e7b526b | 2010-06-02 08:30:48 +0100 | [diff] [blame] | 5447 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5448 | ret = i915_gem_object_set_to_gtt_domain(obj, 0); |
Chris Wilson | e7b526b | 2010-06-02 08:30:48 +0100 | [diff] [blame] | 5449 | if (ret) { |
| 5450 | DRM_ERROR("failed to move cursor bo into the GTT\n"); |
| 5451 | goto fail_unpin; |
| 5452 | } |
| 5453 | |
Chris Wilson | d9e86c0 | 2010-11-10 16:40:20 +0000 | [diff] [blame] | 5454 | ret = i915_gem_object_put_fence(obj); |
| 5455 | if (ret) { |
| 5456 | DRM_ERROR("failed to move cursor bo into the GTT\n"); |
| 5457 | goto fail_unpin; |
| 5458 | } |
| 5459 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5460 | addr = obj->gtt_offset; |
Dave Airlie | 71acb5e | 2008-12-30 20:31:46 +1000 | [diff] [blame] | 5461 | } else { |
Chris Wilson | 6eeefaf | 2010-08-07 11:01:39 +0100 | [diff] [blame] | 5462 | int align = IS_I830(dev) ? 16 * 1024 : 256; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5463 | ret = i915_gem_attach_phys_object(dev, obj, |
Chris Wilson | 6eeefaf | 2010-08-07 11:01:39 +0100 | [diff] [blame] | 5464 | (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1, |
| 5465 | align); |
Dave Airlie | 71acb5e | 2008-12-30 20:31:46 +1000 | [diff] [blame] | 5466 | if (ret) { |
| 5467 | DRM_ERROR("failed to attach phys object\n"); |
Kristian Høgsberg | 7f9872e | 2009-02-13 20:56:49 -0500 | [diff] [blame] | 5468 | goto fail_locked; |
Dave Airlie | 71acb5e | 2008-12-30 20:31:46 +1000 | [diff] [blame] | 5469 | } |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5470 | addr = obj->phys_obj->handle->busaddr; |
Kristian Høgsberg | 3f8bc37 | 2008-12-17 22:14:59 -0500 | [diff] [blame] | 5471 | } |
| 5472 | |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 5473 | if (IS_GEN2(dev)) |
Jesse Barnes | 14b6039 | 2009-05-20 16:47:08 -0400 | [diff] [blame] | 5474 | I915_WRITE(CURSIZE, (height << 12) | width); |
| 5475 | |
Kristian Høgsberg | 3f8bc37 | 2008-12-17 22:14:59 -0500 | [diff] [blame] | 5476 | finish: |
Kristian Høgsberg | 3f8bc37 | 2008-12-17 22:14:59 -0500 | [diff] [blame] | 5477 | if (intel_crtc->cursor_bo) { |
Kristian Høgsberg | b295d1b | 2009-12-16 15:16:17 -0500 | [diff] [blame] | 5478 | if (dev_priv->info->cursor_needs_physical) { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5479 | if (intel_crtc->cursor_bo != obj) |
Dave Airlie | 71acb5e | 2008-12-30 20:31:46 +1000 | [diff] [blame] | 5480 | i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo); |
| 5481 | } else |
| 5482 | i915_gem_object_unpin(intel_crtc->cursor_bo); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5483 | drm_gem_object_unreference(&intel_crtc->cursor_bo->base); |
Kristian Høgsberg | 3f8bc37 | 2008-12-17 22:14:59 -0500 | [diff] [blame] | 5484 | } |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 5485 | |
Kristian Høgsberg | 7f9872e | 2009-02-13 20:56:49 -0500 | [diff] [blame] | 5486 | mutex_unlock(&dev->struct_mutex); |
Kristian Høgsberg | 3f8bc37 | 2008-12-17 22:14:59 -0500 | [diff] [blame] | 5487 | |
| 5488 | intel_crtc->cursor_addr = addr; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5489 | intel_crtc->cursor_bo = obj; |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 5490 | intel_crtc->cursor_width = width; |
| 5491 | intel_crtc->cursor_height = height; |
| 5492 | |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 5493 | intel_crtc_update_cursor(crtc, true); |
Kristian Høgsberg | 3f8bc37 | 2008-12-17 22:14:59 -0500 | [diff] [blame] | 5494 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5495 | return 0; |
Chris Wilson | e7b526b | 2010-06-02 08:30:48 +0100 | [diff] [blame] | 5496 | fail_unpin: |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5497 | i915_gem_object_unpin(obj); |
Kristian Høgsberg | 7f9872e | 2009-02-13 20:56:49 -0500 | [diff] [blame] | 5498 | fail_locked: |
Dave Airlie | 34b8686e | 2009-01-15 14:03:07 +1000 | [diff] [blame] | 5499 | mutex_unlock(&dev->struct_mutex); |
Luca Barbieri | bc9025b | 2010-02-09 05:49:12 +0000 | [diff] [blame] | 5500 | fail: |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 5501 | drm_gem_object_unreference_unlocked(&obj->base); |
Dave Airlie | 34b8686e | 2009-01-15 14:03:07 +1000 | [diff] [blame] | 5502 | return ret; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5503 | } |
| 5504 | |
| 5505 | static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) |
| 5506 | { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5507 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5508 | |
Chris Wilson | cda4b7d | 2010-07-09 08:45:04 +0100 | [diff] [blame] | 5509 | intel_crtc->cursor_x = x; |
| 5510 | intel_crtc->cursor_y = y; |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5511 | |
Chris Wilson | 6b383a7 | 2010-09-13 13:54:26 +0100 | [diff] [blame] | 5512 | intel_crtc_update_cursor(crtc, true); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5513 | |
| 5514 | return 0; |
| 5515 | } |
| 5516 | |
| 5517 | /** Sets the color ramps on behalf of RandR */ |
| 5518 | void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, |
| 5519 | u16 blue, int regno) |
| 5520 | { |
| 5521 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 5522 | |
| 5523 | intel_crtc->lut_r[regno] = red >> 8; |
| 5524 | intel_crtc->lut_g[regno] = green >> 8; |
| 5525 | intel_crtc->lut_b[regno] = blue >> 8; |
| 5526 | } |
| 5527 | |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 5528 | void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, |
| 5529 | u16 *blue, int regno) |
| 5530 | { |
| 5531 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 5532 | |
| 5533 | *red = intel_crtc->lut_r[regno] << 8; |
| 5534 | *green = intel_crtc->lut_g[regno] << 8; |
| 5535 | *blue = intel_crtc->lut_b[regno] << 8; |
| 5536 | } |
| 5537 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5538 | static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
James Simmons | 7203425 | 2010-08-03 01:33:19 +0100 | [diff] [blame] | 5539 | u16 *blue, uint32_t start, uint32_t size) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5540 | { |
James Simmons | 7203425 | 2010-08-03 01:33:19 +0100 | [diff] [blame] | 5541 | int end = (start + size > 256) ? 256 : start + size, i; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5542 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5543 | |
James Simmons | 7203425 | 2010-08-03 01:33:19 +0100 | [diff] [blame] | 5544 | for (i = start; i < end; i++) { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5545 | intel_crtc->lut_r[i] = red[i] >> 8; |
| 5546 | intel_crtc->lut_g[i] = green[i] >> 8; |
| 5547 | intel_crtc->lut_b[i] = blue[i] >> 8; |
| 5548 | } |
| 5549 | |
| 5550 | intel_crtc_load_lut(crtc); |
| 5551 | } |
| 5552 | |
| 5553 | /** |
| 5554 | * Get a pipe with a simple mode set on it for doing load-based monitor |
| 5555 | * detection. |
| 5556 | * |
| 5557 | * It will be up to the load-detect code to adjust the pipe as appropriate for |
Eric Anholt | c751ce4 | 2010-03-25 11:48:48 -0700 | [diff] [blame] | 5558 | * its requirements. The pipe will be connected to no other encoders. |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5559 | * |
Eric Anholt | c751ce4 | 2010-03-25 11:48:48 -0700 | [diff] [blame] | 5560 | * Currently this code will only succeed if there is a pipe with no encoders |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5561 | * configured for it. In the future, it could choose to temporarily disable |
| 5562 | * some outputs to free up a pipe for its use. |
| 5563 | * |
| 5564 | * \return crtc, or NULL if no pipes are available. |
| 5565 | */ |
| 5566 | |
| 5567 | /* VESA 640x480x72Hz mode to set on the pipe */ |
| 5568 | static struct drm_display_mode load_detect_mode = { |
| 5569 | DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, |
| 5570 | 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), |
| 5571 | }; |
| 5572 | |
Chris Wilson | d2dff87 | 2011-04-19 08:36:26 +0100 | [diff] [blame] | 5573 | static struct drm_framebuffer * |
| 5574 | intel_framebuffer_create(struct drm_device *dev, |
| 5575 | struct drm_mode_fb_cmd *mode_cmd, |
| 5576 | struct drm_i915_gem_object *obj) |
| 5577 | { |
| 5578 | struct intel_framebuffer *intel_fb; |
| 5579 | int ret; |
| 5580 | |
| 5581 | intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); |
| 5582 | if (!intel_fb) { |
| 5583 | drm_gem_object_unreference_unlocked(&obj->base); |
| 5584 | return ERR_PTR(-ENOMEM); |
| 5585 | } |
| 5586 | |
| 5587 | ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); |
| 5588 | if (ret) { |
| 5589 | drm_gem_object_unreference_unlocked(&obj->base); |
| 5590 | kfree(intel_fb); |
| 5591 | return ERR_PTR(ret); |
| 5592 | } |
| 5593 | |
| 5594 | return &intel_fb->base; |
| 5595 | } |
| 5596 | |
| 5597 | static u32 |
| 5598 | intel_framebuffer_pitch_for_width(int width, int bpp) |
| 5599 | { |
| 5600 | u32 pitch = DIV_ROUND_UP(width * bpp, 8); |
| 5601 | return ALIGN(pitch, 64); |
| 5602 | } |
| 5603 | |
| 5604 | static u32 |
| 5605 | intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp) |
| 5606 | { |
| 5607 | u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp); |
| 5608 | return ALIGN(pitch * mode->vdisplay, PAGE_SIZE); |
| 5609 | } |
| 5610 | |
| 5611 | static struct drm_framebuffer * |
| 5612 | intel_framebuffer_create_for_mode(struct drm_device *dev, |
| 5613 | struct drm_display_mode *mode, |
| 5614 | int depth, int bpp) |
| 5615 | { |
| 5616 | struct drm_i915_gem_object *obj; |
| 5617 | struct drm_mode_fb_cmd mode_cmd; |
| 5618 | |
| 5619 | obj = i915_gem_alloc_object(dev, |
| 5620 | intel_framebuffer_size_for_mode(mode, bpp)); |
| 5621 | if (obj == NULL) |
| 5622 | return ERR_PTR(-ENOMEM); |
| 5623 | |
| 5624 | mode_cmd.width = mode->hdisplay; |
| 5625 | mode_cmd.height = mode->vdisplay; |
| 5626 | mode_cmd.depth = depth; |
| 5627 | mode_cmd.bpp = bpp; |
| 5628 | mode_cmd.pitch = intel_framebuffer_pitch_for_width(mode_cmd.width, bpp); |
| 5629 | |
| 5630 | return intel_framebuffer_create(dev, &mode_cmd, obj); |
| 5631 | } |
| 5632 | |
| 5633 | static struct drm_framebuffer * |
| 5634 | mode_fits_in_fbdev(struct drm_device *dev, |
| 5635 | struct drm_display_mode *mode) |
| 5636 | { |
| 5637 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 5638 | struct drm_i915_gem_object *obj; |
| 5639 | struct drm_framebuffer *fb; |
| 5640 | |
| 5641 | if (dev_priv->fbdev == NULL) |
| 5642 | return NULL; |
| 5643 | |
| 5644 | obj = dev_priv->fbdev->ifb.obj; |
| 5645 | if (obj == NULL) |
| 5646 | return NULL; |
| 5647 | |
| 5648 | fb = &dev_priv->fbdev->ifb.base; |
| 5649 | if (fb->pitch < intel_framebuffer_pitch_for_width(mode->hdisplay, |
| 5650 | fb->bits_per_pixel)) |
| 5651 | return NULL; |
| 5652 | |
| 5653 | if (obj->base.size < mode->vdisplay * fb->pitch) |
| 5654 | return NULL; |
| 5655 | |
| 5656 | return fb; |
| 5657 | } |
| 5658 | |
Chris Wilson | 7173188 | 2011-04-19 23:10:58 +0100 | [diff] [blame] | 5659 | bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, |
| 5660 | struct drm_connector *connector, |
| 5661 | struct drm_display_mode *mode, |
Chris Wilson | 8261b19 | 2011-04-19 23:18:09 +0100 | [diff] [blame] | 5662 | struct intel_load_detect_pipe *old) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5663 | { |
| 5664 | struct intel_crtc *intel_crtc; |
| 5665 | struct drm_crtc *possible_crtc; |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 5666 | struct drm_encoder *encoder = &intel_encoder->base; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5667 | struct drm_crtc *crtc = NULL; |
| 5668 | struct drm_device *dev = encoder->dev; |
Chris Wilson | d2dff87 | 2011-04-19 08:36:26 +0100 | [diff] [blame] | 5669 | struct drm_framebuffer *old_fb; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5670 | int i = -1; |
| 5671 | |
Chris Wilson | d2dff87 | 2011-04-19 08:36:26 +0100 | [diff] [blame] | 5672 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
| 5673 | connector->base.id, drm_get_connector_name(connector), |
| 5674 | encoder->base.id, drm_get_encoder_name(encoder)); |
| 5675 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5676 | /* |
| 5677 | * Algorithm gets a little messy: |
Chris Wilson | 7a5e480 | 2011-04-19 23:21:12 +0100 | [diff] [blame] | 5678 | * |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5679 | * - if the connector already has an assigned crtc, use it (but make |
| 5680 | * sure it's on first) |
Chris Wilson | 7a5e480 | 2011-04-19 23:21:12 +0100 | [diff] [blame] | 5681 | * |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5682 | * - try to find the first unused crtc that can drive this connector, |
| 5683 | * and use that if we find one |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5684 | */ |
| 5685 | |
| 5686 | /* See if we already have a CRTC for this connector */ |
| 5687 | if (encoder->crtc) { |
| 5688 | crtc = encoder->crtc; |
Chris Wilson | 8261b19 | 2011-04-19 23:18:09 +0100 | [diff] [blame] | 5689 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5690 | intel_crtc = to_intel_crtc(crtc); |
Chris Wilson | 8261b19 | 2011-04-19 23:18:09 +0100 | [diff] [blame] | 5691 | old->dpms_mode = intel_crtc->dpms_mode; |
| 5692 | old->load_detect_temp = false; |
| 5693 | |
| 5694 | /* Make sure the crtc and connector are running */ |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5695 | if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) { |
Chris Wilson | 6492711 | 2011-04-20 07:25:26 +0100 | [diff] [blame] | 5696 | struct drm_encoder_helper_funcs *encoder_funcs; |
| 5697 | struct drm_crtc_helper_funcs *crtc_funcs; |
| 5698 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5699 | crtc_funcs = crtc->helper_private; |
| 5700 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); |
Chris Wilson | 6492711 | 2011-04-20 07:25:26 +0100 | [diff] [blame] | 5701 | |
| 5702 | encoder_funcs = encoder->helper_private; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5703 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); |
| 5704 | } |
Chris Wilson | 8261b19 | 2011-04-19 23:18:09 +0100 | [diff] [blame] | 5705 | |
Chris Wilson | 7173188 | 2011-04-19 23:10:58 +0100 | [diff] [blame] | 5706 | return true; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5707 | } |
| 5708 | |
| 5709 | /* Find an unused one (if possible) */ |
| 5710 | list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) { |
| 5711 | i++; |
| 5712 | if (!(encoder->possible_crtcs & (1 << i))) |
| 5713 | continue; |
| 5714 | if (!possible_crtc->enabled) { |
| 5715 | crtc = possible_crtc; |
| 5716 | break; |
| 5717 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5718 | } |
| 5719 | |
| 5720 | /* |
| 5721 | * If we didn't find an unused CRTC, don't use any. |
| 5722 | */ |
| 5723 | if (!crtc) { |
Chris Wilson | 7173188 | 2011-04-19 23:10:58 +0100 | [diff] [blame] | 5724 | DRM_DEBUG_KMS("no pipe available for load-detect\n"); |
| 5725 | return false; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5726 | } |
| 5727 | |
| 5728 | encoder->crtc = crtc; |
Zhenyu Wang | c1c4397 | 2010-03-30 14:39:30 +0800 | [diff] [blame] | 5729 | connector->encoder = encoder; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5730 | |
| 5731 | intel_crtc = to_intel_crtc(crtc); |
Chris Wilson | 8261b19 | 2011-04-19 23:18:09 +0100 | [diff] [blame] | 5732 | old->dpms_mode = intel_crtc->dpms_mode; |
| 5733 | old->load_detect_temp = true; |
Chris Wilson | d2dff87 | 2011-04-19 08:36:26 +0100 | [diff] [blame] | 5734 | old->release_fb = NULL; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5735 | |
Chris Wilson | 6492711 | 2011-04-20 07:25:26 +0100 | [diff] [blame] | 5736 | if (!mode) |
| 5737 | mode = &load_detect_mode; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5738 | |
Chris Wilson | d2dff87 | 2011-04-19 08:36:26 +0100 | [diff] [blame] | 5739 | old_fb = crtc->fb; |
| 5740 | |
| 5741 | /* We need a framebuffer large enough to accommodate all accesses |
| 5742 | * that the plane may generate whilst we perform load detection. |
| 5743 | * We can not rely on the fbcon either being present (we get called |
| 5744 | * during its initialisation to detect all boot displays, or it may |
| 5745 | * not even exist) or that it is large enough to satisfy the |
| 5746 | * requested mode. |
| 5747 | */ |
| 5748 | crtc->fb = mode_fits_in_fbdev(dev, mode); |
| 5749 | if (crtc->fb == NULL) { |
| 5750 | DRM_DEBUG_KMS("creating tmp fb for load-detection\n"); |
| 5751 | crtc->fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32); |
| 5752 | old->release_fb = crtc->fb; |
| 5753 | } else |
| 5754 | DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n"); |
| 5755 | if (IS_ERR(crtc->fb)) { |
| 5756 | DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n"); |
| 5757 | crtc->fb = old_fb; |
| 5758 | return false; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5759 | } |
Chris Wilson | d2dff87 | 2011-04-19 08:36:26 +0100 | [diff] [blame] | 5760 | |
| 5761 | if (!drm_crtc_helper_set_mode(crtc, mode, 0, 0, old_fb)) { |
Chris Wilson | 6492711 | 2011-04-20 07:25:26 +0100 | [diff] [blame] | 5762 | DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n"); |
Chris Wilson | d2dff87 | 2011-04-19 08:36:26 +0100 | [diff] [blame] | 5763 | if (old->release_fb) |
| 5764 | old->release_fb->funcs->destroy(old->release_fb); |
| 5765 | crtc->fb = old_fb; |
Chris Wilson | 6492711 | 2011-04-20 07:25:26 +0100 | [diff] [blame] | 5766 | return false; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5767 | } |
Chris Wilson | 7173188 | 2011-04-19 23:10:58 +0100 | [diff] [blame] | 5768 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5769 | /* let the connector get through one full cycle before testing */ |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 5770 | intel_wait_for_vblank(dev, intel_crtc->pipe); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5771 | |
Chris Wilson | 7173188 | 2011-04-19 23:10:58 +0100 | [diff] [blame] | 5772 | return true; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5773 | } |
| 5774 | |
Zhenyu Wang | c1c4397 | 2010-03-30 14:39:30 +0800 | [diff] [blame] | 5775 | void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder, |
Chris Wilson | 8261b19 | 2011-04-19 23:18:09 +0100 | [diff] [blame] | 5776 | struct drm_connector *connector, |
| 5777 | struct intel_load_detect_pipe *old) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5778 | { |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 5779 | struct drm_encoder *encoder = &intel_encoder->base; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5780 | struct drm_device *dev = encoder->dev; |
| 5781 | struct drm_crtc *crtc = encoder->crtc; |
| 5782 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; |
| 5783 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
| 5784 | |
Chris Wilson | d2dff87 | 2011-04-19 08:36:26 +0100 | [diff] [blame] | 5785 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", |
| 5786 | connector->base.id, drm_get_connector_name(connector), |
| 5787 | encoder->base.id, drm_get_encoder_name(encoder)); |
| 5788 | |
Chris Wilson | 8261b19 | 2011-04-19 23:18:09 +0100 | [diff] [blame] | 5789 | if (old->load_detect_temp) { |
Zhenyu Wang | c1c4397 | 2010-03-30 14:39:30 +0800 | [diff] [blame] | 5790 | connector->encoder = NULL; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5791 | drm_helper_disable_unused_functions(dev); |
Chris Wilson | d2dff87 | 2011-04-19 08:36:26 +0100 | [diff] [blame] | 5792 | |
| 5793 | if (old->release_fb) |
| 5794 | old->release_fb->funcs->destroy(old->release_fb); |
| 5795 | |
Chris Wilson | 0622a53 | 2011-04-21 09:32:11 +0100 | [diff] [blame] | 5796 | return; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5797 | } |
| 5798 | |
Eric Anholt | c751ce4 | 2010-03-25 11:48:48 -0700 | [diff] [blame] | 5799 | /* Switch crtc and encoder back off if necessary */ |
Chris Wilson | 0622a53 | 2011-04-21 09:32:11 +0100 | [diff] [blame] | 5800 | if (old->dpms_mode != DRM_MODE_DPMS_ON) { |
| 5801 | encoder_funcs->dpms(encoder, old->dpms_mode); |
Chris Wilson | 8261b19 | 2011-04-19 23:18:09 +0100 | [diff] [blame] | 5802 | crtc_funcs->dpms(crtc, old->dpms_mode); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5803 | } |
| 5804 | } |
| 5805 | |
| 5806 | /* Returns the clock of the currently programmed mode of the given pipe. */ |
| 5807 | static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) |
| 5808 | { |
| 5809 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 5810 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 5811 | int pipe = intel_crtc->pipe; |
Jesse Barnes | 548f245 | 2011-02-17 10:40:53 -0800 | [diff] [blame] | 5812 | u32 dpll = I915_READ(DPLL(pipe)); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5813 | u32 fp; |
| 5814 | intel_clock_t clock; |
| 5815 | |
| 5816 | if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) |
Chris Wilson | 39adb7a | 2011-04-22 22:17:21 +0100 | [diff] [blame] | 5817 | fp = I915_READ(FP0(pipe)); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5818 | else |
Chris Wilson | 39adb7a | 2011-04-22 22:17:21 +0100 | [diff] [blame] | 5819 | fp = I915_READ(FP1(pipe)); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5820 | |
| 5821 | clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 5822 | if (IS_PINEVIEW(dev)) { |
| 5823 | clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; |
| 5824 | clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 5825 | } else { |
| 5826 | clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; |
| 5827 | clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; |
| 5828 | } |
| 5829 | |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 5830 | if (!IS_GEN2(dev)) { |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 5831 | if (IS_PINEVIEW(dev)) |
| 5832 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> |
| 5833 | DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 5834 | else |
| 5835 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5836 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
| 5837 | |
| 5838 | switch (dpll & DPLL_MODE_MASK) { |
| 5839 | case DPLLB_MODE_DAC_SERIAL: |
| 5840 | clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? |
| 5841 | 5 : 10; |
| 5842 | break; |
| 5843 | case DPLLB_MODE_LVDS: |
| 5844 | clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? |
| 5845 | 7 : 14; |
| 5846 | break; |
| 5847 | default: |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 5848 | DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5849 | "mode\n", (int)(dpll & DPLL_MODE_MASK)); |
| 5850 | return 0; |
| 5851 | } |
| 5852 | |
| 5853 | /* XXX: Handle the 100Mhz refclk */ |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 5854 | intel_clock(dev, 96000, &clock); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5855 | } else { |
| 5856 | bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); |
| 5857 | |
| 5858 | if (is_lvds) { |
| 5859 | clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> |
| 5860 | DPLL_FPA01_P1_POST_DIV_SHIFT); |
| 5861 | clock.p2 = 14; |
| 5862 | |
| 5863 | if ((dpll & PLL_REF_INPUT_MASK) == |
| 5864 | PLLB_REF_INPUT_SPREADSPECTRUMIN) { |
| 5865 | /* XXX: might not be 66MHz */ |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 5866 | intel_clock(dev, 66000, &clock); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5867 | } else |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 5868 | intel_clock(dev, 48000, &clock); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5869 | } else { |
| 5870 | if (dpll & PLL_P1_DIVIDE_BY_TWO) |
| 5871 | clock.p1 = 2; |
| 5872 | else { |
| 5873 | clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> |
| 5874 | DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; |
| 5875 | } |
| 5876 | if (dpll & PLL_P2_DIVIDE_BY_4) |
| 5877 | clock.p2 = 4; |
| 5878 | else |
| 5879 | clock.p2 = 2; |
| 5880 | |
Shaohua Li | 2177832 | 2009-02-23 15:19:16 +0800 | [diff] [blame] | 5881 | intel_clock(dev, 48000, &clock); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5882 | } |
| 5883 | } |
| 5884 | |
| 5885 | /* XXX: It would be nice to validate the clocks, but we can't reuse |
| 5886 | * i830PllIsValid() because it relies on the xf86_config connector |
| 5887 | * configuration being accurate, which it isn't necessarily. |
| 5888 | */ |
| 5889 | |
| 5890 | return clock.dot; |
| 5891 | } |
| 5892 | |
| 5893 | /** Returns the currently programmed mode of the given pipe. */ |
| 5894 | struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, |
| 5895 | struct drm_crtc *crtc) |
| 5896 | { |
Jesse Barnes | 548f245 | 2011-02-17 10:40:53 -0800 | [diff] [blame] | 5897 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5898 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 5899 | int pipe = intel_crtc->pipe; |
| 5900 | struct drm_display_mode *mode; |
Jesse Barnes | 548f245 | 2011-02-17 10:40:53 -0800 | [diff] [blame] | 5901 | int htot = I915_READ(HTOTAL(pipe)); |
| 5902 | int hsync = I915_READ(HSYNC(pipe)); |
| 5903 | int vtot = I915_READ(VTOTAL(pipe)); |
| 5904 | int vsync = I915_READ(VSYNC(pipe)); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 5905 | |
| 5906 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); |
| 5907 | if (!mode) |
| 5908 | return NULL; |
| 5909 | |
| 5910 | mode->clock = intel_crtc_clock_get(dev, crtc); |
| 5911 | mode->hdisplay = (htot & 0xffff) + 1; |
| 5912 | mode->htotal = ((htot & 0xffff0000) >> 16) + 1; |
| 5913 | mode->hsync_start = (hsync & 0xffff) + 1; |
| 5914 | mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; |
| 5915 | mode->vdisplay = (vtot & 0xffff) + 1; |
| 5916 | mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; |
| 5917 | mode->vsync_start = (vsync & 0xffff) + 1; |
| 5918 | mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; |
| 5919 | |
| 5920 | drm_mode_set_name(mode); |
| 5921 | drm_mode_set_crtcinfo(mode, 0); |
| 5922 | |
| 5923 | return mode; |
| 5924 | } |
| 5925 | |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5926 | #define GPU_IDLE_TIMEOUT 500 /* ms */ |
| 5927 | |
| 5928 | /* When this timer fires, we've been idle for awhile */ |
| 5929 | static void intel_gpu_idle_timer(unsigned long arg) |
| 5930 | { |
| 5931 | struct drm_device *dev = (struct drm_device *)arg; |
| 5932 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 5933 | |
Chris Wilson | ff7ea4c | 2010-12-08 09:43:41 +0000 | [diff] [blame] | 5934 | if (!list_empty(&dev_priv->mm.active_list)) { |
| 5935 | /* Still processing requests, so just re-arm the timer. */ |
| 5936 | mod_timer(&dev_priv->idle_timer, jiffies + |
| 5937 | msecs_to_jiffies(GPU_IDLE_TIMEOUT)); |
| 5938 | return; |
| 5939 | } |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5940 | |
Chris Wilson | ff7ea4c | 2010-12-08 09:43:41 +0000 | [diff] [blame] | 5941 | dev_priv->busy = false; |
Eric Anholt | 01dfba9 | 2009-09-06 15:18:53 -0700 | [diff] [blame] | 5942 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5943 | } |
| 5944 | |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5945 | #define CRTC_IDLE_TIMEOUT 1000 /* ms */ |
| 5946 | |
| 5947 | static void intel_crtc_idle_timer(unsigned long arg) |
| 5948 | { |
| 5949 | struct intel_crtc *intel_crtc = (struct intel_crtc *)arg; |
| 5950 | struct drm_crtc *crtc = &intel_crtc->base; |
| 5951 | drm_i915_private_t *dev_priv = crtc->dev->dev_private; |
Chris Wilson | ff7ea4c | 2010-12-08 09:43:41 +0000 | [diff] [blame] | 5952 | struct intel_framebuffer *intel_fb; |
| 5953 | |
| 5954 | intel_fb = to_intel_framebuffer(crtc->fb); |
| 5955 | if (intel_fb && intel_fb->obj->active) { |
| 5956 | /* The framebuffer is still being accessed by the GPU. */ |
| 5957 | mod_timer(&intel_crtc->idle_timer, jiffies + |
| 5958 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); |
| 5959 | return; |
| 5960 | } |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5961 | |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5962 | intel_crtc->busy = false; |
Eric Anholt | 01dfba9 | 2009-09-06 15:18:53 -0700 | [diff] [blame] | 5963 | queue_work(dev_priv->wq, &dev_priv->idle_work); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5964 | } |
| 5965 | |
Daniel Vetter | 3dec009 | 2010-08-20 21:40:52 +0200 | [diff] [blame] | 5966 | static void intel_increase_pllclock(struct drm_crtc *crtc) |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5967 | { |
| 5968 | struct drm_device *dev = crtc->dev; |
| 5969 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 5970 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 5971 | int pipe = intel_crtc->pipe; |
Jesse Barnes | dbdc647 | 2010-12-30 09:36:39 -0800 | [diff] [blame] | 5972 | int dpll_reg = DPLL(pipe); |
| 5973 | int dpll; |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5974 | |
Eric Anholt | bad720f | 2009-10-22 16:11:14 -0700 | [diff] [blame] | 5975 | if (HAS_PCH_SPLIT(dev)) |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5976 | return; |
| 5977 | |
| 5978 | if (!dev_priv->lvds_downclock_avail) |
| 5979 | return; |
| 5980 | |
Jesse Barnes | dbdc647 | 2010-12-30 09:36:39 -0800 | [diff] [blame] | 5981 | dpll = I915_READ(dpll_reg); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5982 | if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 5983 | DRM_DEBUG_DRIVER("upclocking LVDS\n"); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5984 | |
| 5985 | /* Unlock panel regs */ |
Jesse Barnes | dbdc647 | 2010-12-30 09:36:39 -0800 | [diff] [blame] | 5986 | I915_WRITE(PP_CONTROL, |
| 5987 | I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5988 | |
| 5989 | dpll &= ~DISPLAY_RATE_SELECT_FPA1; |
| 5990 | I915_WRITE(dpll_reg, dpll); |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 5991 | intel_wait_for_vblank(dev, pipe); |
Jesse Barnes | dbdc647 | 2010-12-30 09:36:39 -0800 | [diff] [blame] | 5992 | |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5993 | dpll = I915_READ(dpll_reg); |
| 5994 | if (dpll & DISPLAY_RATE_SELECT_FPA1) |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 5995 | DRM_DEBUG_DRIVER("failed to upclock LVDS!\n"); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 5996 | |
| 5997 | /* ...and lock them again */ |
| 5998 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); |
| 5999 | } |
| 6000 | |
| 6001 | /* Schedule downclock */ |
Daniel Vetter | 3dec009 | 2010-08-20 21:40:52 +0200 | [diff] [blame] | 6002 | mod_timer(&intel_crtc->idle_timer, jiffies + |
| 6003 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6004 | } |
| 6005 | |
| 6006 | static void intel_decrease_pllclock(struct drm_crtc *crtc) |
| 6007 | { |
| 6008 | struct drm_device *dev = crtc->dev; |
| 6009 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 6010 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 6011 | int pipe = intel_crtc->pipe; |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 6012 | int dpll_reg = DPLL(pipe); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6013 | int dpll = I915_READ(dpll_reg); |
| 6014 | |
Eric Anholt | bad720f | 2009-10-22 16:11:14 -0700 | [diff] [blame] | 6015 | if (HAS_PCH_SPLIT(dev)) |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6016 | return; |
| 6017 | |
| 6018 | if (!dev_priv->lvds_downclock_avail) |
| 6019 | return; |
| 6020 | |
| 6021 | /* |
| 6022 | * Since this is called by a timer, we should never get here in |
| 6023 | * the manual case. |
| 6024 | */ |
| 6025 | if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 6026 | DRM_DEBUG_DRIVER("downclocking LVDS\n"); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6027 | |
| 6028 | /* Unlock panel regs */ |
Jesse Barnes | 4a655f0 | 2010-07-22 13:18:18 -0700 | [diff] [blame] | 6029 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | |
| 6030 | PANEL_UNLOCK_REGS); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6031 | |
| 6032 | dpll |= DISPLAY_RATE_SELECT_FPA1; |
| 6033 | I915_WRITE(dpll_reg, dpll); |
Jesse Barnes | 9d0498a | 2010-08-18 13:20:54 -0700 | [diff] [blame] | 6034 | intel_wait_for_vblank(dev, pipe); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6035 | dpll = I915_READ(dpll_reg); |
| 6036 | if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 6037 | DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6038 | |
| 6039 | /* ...and lock them again */ |
| 6040 | I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); |
| 6041 | } |
| 6042 | |
| 6043 | } |
| 6044 | |
| 6045 | /** |
| 6046 | * intel_idle_update - adjust clocks for idleness |
| 6047 | * @work: work struct |
| 6048 | * |
| 6049 | * Either the GPU or display (or both) went idle. Check the busy status |
| 6050 | * here and adjust the CRTC and GPU clocks as necessary. |
| 6051 | */ |
| 6052 | static void intel_idle_update(struct work_struct *work) |
| 6053 | { |
| 6054 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, |
| 6055 | idle_work); |
| 6056 | struct drm_device *dev = dev_priv->dev; |
| 6057 | struct drm_crtc *crtc; |
| 6058 | struct intel_crtc *intel_crtc; |
| 6059 | |
| 6060 | if (!i915_powersave) |
| 6061 | return; |
| 6062 | |
| 6063 | mutex_lock(&dev->struct_mutex); |
| 6064 | |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 6065 | i915_update_gfx_val(dev_priv); |
| 6066 | |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6067 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 6068 | /* Skip inactive CRTCs */ |
| 6069 | if (!crtc->fb) |
| 6070 | continue; |
| 6071 | |
| 6072 | intel_crtc = to_intel_crtc(crtc); |
| 6073 | if (!intel_crtc->busy) |
| 6074 | intel_decrease_pllclock(crtc); |
| 6075 | } |
| 6076 | |
Li Peng | 45ac22c | 2010-06-12 23:38:35 +0800 | [diff] [blame] | 6077 | |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6078 | mutex_unlock(&dev->struct_mutex); |
| 6079 | } |
| 6080 | |
| 6081 | /** |
| 6082 | * intel_mark_busy - mark the GPU and possibly the display busy |
| 6083 | * @dev: drm device |
| 6084 | * @obj: object we're operating on |
| 6085 | * |
| 6086 | * Callers can use this function to indicate that the GPU is busy processing |
| 6087 | * commands. If @obj matches one of the CRTC objects (i.e. it's a scanout |
| 6088 | * buffer), we'll also mark the display as busy, so we know to increase its |
| 6089 | * clock frequency. |
| 6090 | */ |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6091 | void intel_mark_busy(struct drm_device *dev, struct drm_i915_gem_object *obj) |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6092 | { |
| 6093 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 6094 | struct drm_crtc *crtc = NULL; |
| 6095 | struct intel_framebuffer *intel_fb; |
| 6096 | struct intel_crtc *intel_crtc; |
| 6097 | |
Zhenyu Wang | 5e17ee7 | 2009-09-03 09:30:06 +0800 | [diff] [blame] | 6098 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 6099 | return; |
| 6100 | |
Alexander Lam | 18b2190 | 2011-01-03 13:28:56 -0500 | [diff] [blame] | 6101 | if (!dev_priv->busy) |
Chris Wilson | 28cf798 | 2009-11-30 01:08:56 +0000 | [diff] [blame] | 6102 | dev_priv->busy = true; |
Alexander Lam | 18b2190 | 2011-01-03 13:28:56 -0500 | [diff] [blame] | 6103 | else |
Chris Wilson | 28cf798 | 2009-11-30 01:08:56 +0000 | [diff] [blame] | 6104 | mod_timer(&dev_priv->idle_timer, jiffies + |
| 6105 | msecs_to_jiffies(GPU_IDLE_TIMEOUT)); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6106 | |
| 6107 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 6108 | if (!crtc->fb) |
| 6109 | continue; |
| 6110 | |
| 6111 | intel_crtc = to_intel_crtc(crtc); |
| 6112 | intel_fb = to_intel_framebuffer(crtc->fb); |
| 6113 | if (intel_fb->obj == obj) { |
| 6114 | if (!intel_crtc->busy) { |
| 6115 | /* Non-busy -> busy, upclock */ |
Daniel Vetter | 3dec009 | 2010-08-20 21:40:52 +0200 | [diff] [blame] | 6116 | intel_increase_pllclock(crtc); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6117 | intel_crtc->busy = true; |
| 6118 | } else { |
| 6119 | /* Busy -> busy, put off timer */ |
| 6120 | mod_timer(&intel_crtc->idle_timer, jiffies + |
| 6121 | msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); |
| 6122 | } |
| 6123 | } |
| 6124 | } |
| 6125 | } |
| 6126 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6127 | static void intel_crtc_destroy(struct drm_crtc *crtc) |
| 6128 | { |
| 6129 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Daniel Vetter | 67e77c5 | 2010-08-20 22:26:30 +0200 | [diff] [blame] | 6130 | struct drm_device *dev = crtc->dev; |
| 6131 | struct intel_unpin_work *work; |
| 6132 | unsigned long flags; |
| 6133 | |
| 6134 | spin_lock_irqsave(&dev->event_lock, flags); |
| 6135 | work = intel_crtc->unpin_work; |
| 6136 | intel_crtc->unpin_work = NULL; |
| 6137 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 6138 | |
| 6139 | if (work) { |
| 6140 | cancel_work_sync(&work->work); |
| 6141 | kfree(work); |
| 6142 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6143 | |
| 6144 | drm_crtc_cleanup(crtc); |
Daniel Vetter | 67e77c5 | 2010-08-20 22:26:30 +0200 | [diff] [blame] | 6145 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6146 | kfree(intel_crtc); |
| 6147 | } |
| 6148 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6149 | static void intel_unpin_work_fn(struct work_struct *__work) |
| 6150 | { |
| 6151 | struct intel_unpin_work *work = |
| 6152 | container_of(__work, struct intel_unpin_work, work); |
| 6153 | |
| 6154 | mutex_lock(&work->dev->struct_mutex); |
Jesse Barnes | b1b87f6 | 2010-01-26 14:40:05 -0800 | [diff] [blame] | 6155 | i915_gem_object_unpin(work->old_fb_obj); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6156 | drm_gem_object_unreference(&work->pending_flip_obj->base); |
| 6157 | drm_gem_object_unreference(&work->old_fb_obj->base); |
Chris Wilson | d9e86c0 | 2010-11-10 16:40:20 +0000 | [diff] [blame] | 6158 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6159 | mutex_unlock(&work->dev->struct_mutex); |
| 6160 | kfree(work); |
| 6161 | } |
| 6162 | |
Jesse Barnes | 1afe3e9 | 2010-03-26 10:35:20 -0700 | [diff] [blame] | 6163 | static void do_intel_finish_page_flip(struct drm_device *dev, |
Mario Kleiner | 49b14a5 | 2010-12-09 07:00:07 +0100 | [diff] [blame] | 6164 | struct drm_crtc *crtc) |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6165 | { |
| 6166 | drm_i915_private_t *dev_priv = dev->dev_private; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6167 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 6168 | struct intel_unpin_work *work; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6169 | struct drm_i915_gem_object *obj; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6170 | struct drm_pending_vblank_event *e; |
Mario Kleiner | 49b14a5 | 2010-12-09 07:00:07 +0100 | [diff] [blame] | 6171 | struct timeval tnow, tvbl; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6172 | unsigned long flags; |
| 6173 | |
| 6174 | /* Ignore early vblank irqs */ |
| 6175 | if (intel_crtc == NULL) |
| 6176 | return; |
| 6177 | |
Mario Kleiner | 49b14a5 | 2010-12-09 07:00:07 +0100 | [diff] [blame] | 6178 | do_gettimeofday(&tnow); |
| 6179 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6180 | spin_lock_irqsave(&dev->event_lock, flags); |
| 6181 | work = intel_crtc->unpin_work; |
| 6182 | if (work == NULL || !work->pending) { |
| 6183 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 6184 | return; |
| 6185 | } |
| 6186 | |
| 6187 | intel_crtc->unpin_work = NULL; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6188 | |
| 6189 | if (work->event) { |
| 6190 | e = work->event; |
Mario Kleiner | 49b14a5 | 2010-12-09 07:00:07 +0100 | [diff] [blame] | 6191 | e->event.sequence = drm_vblank_count_and_time(dev, intel_crtc->pipe, &tvbl); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 6192 | |
| 6193 | /* Called before vblank count and timestamps have |
| 6194 | * been updated for the vblank interval of flip |
| 6195 | * completion? Need to increment vblank count and |
| 6196 | * add one videorefresh duration to returned timestamp |
Mario Kleiner | 49b14a5 | 2010-12-09 07:00:07 +0100 | [diff] [blame] | 6197 | * to account for this. We assume this happened if we |
| 6198 | * get called over 0.9 frame durations after the last |
| 6199 | * timestamped vblank. |
| 6200 | * |
| 6201 | * This calculation can not be used with vrefresh rates |
| 6202 | * below 5Hz (10Hz to be on the safe side) without |
| 6203 | * promoting to 64 integers. |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 6204 | */ |
Mario Kleiner | 49b14a5 | 2010-12-09 07:00:07 +0100 | [diff] [blame] | 6205 | if (10 * (timeval_to_ns(&tnow) - timeval_to_ns(&tvbl)) > |
| 6206 | 9 * crtc->framedur_ns) { |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 6207 | e->event.sequence++; |
Mario Kleiner | 49b14a5 | 2010-12-09 07:00:07 +0100 | [diff] [blame] | 6208 | tvbl = ns_to_timeval(timeval_to_ns(&tvbl) + |
| 6209 | crtc->framedur_ns); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 6210 | } |
| 6211 | |
Mario Kleiner | 49b14a5 | 2010-12-09 07:00:07 +0100 | [diff] [blame] | 6212 | e->event.tv_sec = tvbl.tv_sec; |
| 6213 | e->event.tv_usec = tvbl.tv_usec; |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 6214 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6215 | list_add_tail(&e->base.link, |
| 6216 | &e->base.file_priv->event_list); |
| 6217 | wake_up_interruptible(&e->base.file_priv->event_wait); |
| 6218 | } |
| 6219 | |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 6220 | drm_vblank_put(dev, intel_crtc->pipe); |
| 6221 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6222 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 6223 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6224 | obj = work->old_fb_obj; |
Chris Wilson | d9e86c0 | 2010-11-10 16:40:20 +0000 | [diff] [blame] | 6225 | |
Chris Wilson | e59f2ba | 2010-10-07 17:28:15 +0100 | [diff] [blame] | 6226 | atomic_clear_mask(1 << intel_crtc->plane, |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6227 | &obj->pending_flip.counter); |
| 6228 | if (atomic_read(&obj->pending_flip) == 0) |
Chris Wilson | f787a5f | 2010-09-24 16:02:42 +0100 | [diff] [blame] | 6229 | wake_up(&dev_priv->pending_flip_queue); |
Chris Wilson | d9e86c0 | 2010-11-10 16:40:20 +0000 | [diff] [blame] | 6230 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6231 | schedule_work(&work->work); |
Jesse Barnes | e5510fa | 2010-07-01 16:48:37 -0700 | [diff] [blame] | 6232 | |
| 6233 | trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6234 | } |
| 6235 | |
Jesse Barnes | 1afe3e9 | 2010-03-26 10:35:20 -0700 | [diff] [blame] | 6236 | void intel_finish_page_flip(struct drm_device *dev, int pipe) |
| 6237 | { |
| 6238 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 6239 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
| 6240 | |
Mario Kleiner | 49b14a5 | 2010-12-09 07:00:07 +0100 | [diff] [blame] | 6241 | do_intel_finish_page_flip(dev, crtc); |
Jesse Barnes | 1afe3e9 | 2010-03-26 10:35:20 -0700 | [diff] [blame] | 6242 | } |
| 6243 | |
| 6244 | void intel_finish_page_flip_plane(struct drm_device *dev, int plane) |
| 6245 | { |
| 6246 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 6247 | struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; |
| 6248 | |
Mario Kleiner | 49b14a5 | 2010-12-09 07:00:07 +0100 | [diff] [blame] | 6249 | do_intel_finish_page_flip(dev, crtc); |
Jesse Barnes | 1afe3e9 | 2010-03-26 10:35:20 -0700 | [diff] [blame] | 6250 | } |
| 6251 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6252 | void intel_prepare_page_flip(struct drm_device *dev, int plane) |
| 6253 | { |
| 6254 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 6255 | struct intel_crtc *intel_crtc = |
| 6256 | to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]); |
| 6257 | unsigned long flags; |
| 6258 | |
| 6259 | spin_lock_irqsave(&dev->event_lock, flags); |
Jesse Barnes | de3f440 | 2010-01-14 13:18:02 -0800 | [diff] [blame] | 6260 | if (intel_crtc->unpin_work) { |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 6261 | if ((++intel_crtc->unpin_work->pending) > 1) |
| 6262 | DRM_ERROR("Prepared flip multiple times\n"); |
Jesse Barnes | de3f440 | 2010-01-14 13:18:02 -0800 | [diff] [blame] | 6263 | } else { |
| 6264 | DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n"); |
| 6265 | } |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6266 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 6267 | } |
| 6268 | |
Jesse Barnes | 8c9f3aa | 2011-06-16 09:19:13 -0700 | [diff] [blame] | 6269 | static int intel_gen2_queue_flip(struct drm_device *dev, |
| 6270 | struct drm_crtc *crtc, |
| 6271 | struct drm_framebuffer *fb, |
| 6272 | struct drm_i915_gem_object *obj) |
| 6273 | { |
| 6274 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 6275 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 6276 | unsigned long offset; |
| 6277 | u32 flip_mask; |
| 6278 | int ret; |
| 6279 | |
| 6280 | ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv)); |
| 6281 | if (ret) |
| 6282 | goto out; |
| 6283 | |
| 6284 | /* Offset into the new buffer for cases of shared fbs between CRTCs */ |
| 6285 | offset = crtc->y * fb->pitch + crtc->x * fb->bits_per_pixel/8; |
| 6286 | |
| 6287 | ret = BEGIN_LP_RING(6); |
| 6288 | if (ret) |
| 6289 | goto out; |
| 6290 | |
| 6291 | /* Can't queue multiple flips, so wait for the previous |
| 6292 | * one to finish before executing the next. |
| 6293 | */ |
| 6294 | if (intel_crtc->plane) |
| 6295 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; |
| 6296 | else |
| 6297 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; |
| 6298 | OUT_RING(MI_WAIT_FOR_EVENT | flip_mask); |
| 6299 | OUT_RING(MI_NOOP); |
| 6300 | OUT_RING(MI_DISPLAY_FLIP | |
| 6301 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
| 6302 | OUT_RING(fb->pitch); |
| 6303 | OUT_RING(obj->gtt_offset + offset); |
| 6304 | OUT_RING(MI_NOOP); |
| 6305 | ADVANCE_LP_RING(); |
| 6306 | out: |
| 6307 | return ret; |
| 6308 | } |
| 6309 | |
| 6310 | static int intel_gen3_queue_flip(struct drm_device *dev, |
| 6311 | struct drm_crtc *crtc, |
| 6312 | struct drm_framebuffer *fb, |
| 6313 | struct drm_i915_gem_object *obj) |
| 6314 | { |
| 6315 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 6316 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 6317 | unsigned long offset; |
| 6318 | u32 flip_mask; |
| 6319 | int ret; |
| 6320 | |
| 6321 | ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv)); |
| 6322 | if (ret) |
| 6323 | goto out; |
| 6324 | |
| 6325 | /* Offset into the new buffer for cases of shared fbs between CRTCs */ |
| 6326 | offset = crtc->y * fb->pitch + crtc->x * fb->bits_per_pixel/8; |
| 6327 | |
| 6328 | ret = BEGIN_LP_RING(6); |
| 6329 | if (ret) |
| 6330 | goto out; |
| 6331 | |
| 6332 | if (intel_crtc->plane) |
| 6333 | flip_mask = MI_WAIT_FOR_PLANE_B_FLIP; |
| 6334 | else |
| 6335 | flip_mask = MI_WAIT_FOR_PLANE_A_FLIP; |
| 6336 | OUT_RING(MI_WAIT_FOR_EVENT | flip_mask); |
| 6337 | OUT_RING(MI_NOOP); |
| 6338 | OUT_RING(MI_DISPLAY_FLIP_I915 | |
| 6339 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
| 6340 | OUT_RING(fb->pitch); |
| 6341 | OUT_RING(obj->gtt_offset + offset); |
| 6342 | OUT_RING(MI_NOOP); |
| 6343 | |
| 6344 | ADVANCE_LP_RING(); |
| 6345 | out: |
| 6346 | return ret; |
| 6347 | } |
| 6348 | |
| 6349 | static int intel_gen4_queue_flip(struct drm_device *dev, |
| 6350 | struct drm_crtc *crtc, |
| 6351 | struct drm_framebuffer *fb, |
| 6352 | struct drm_i915_gem_object *obj) |
| 6353 | { |
| 6354 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 6355 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 6356 | uint32_t pf, pipesrc; |
| 6357 | int ret; |
| 6358 | |
| 6359 | ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv)); |
| 6360 | if (ret) |
| 6361 | goto out; |
| 6362 | |
| 6363 | ret = BEGIN_LP_RING(4); |
| 6364 | if (ret) |
| 6365 | goto out; |
| 6366 | |
| 6367 | /* i965+ uses the linear or tiled offsets from the |
| 6368 | * Display Registers (which do not change across a page-flip) |
| 6369 | * so we need only reprogram the base address. |
| 6370 | */ |
| 6371 | OUT_RING(MI_DISPLAY_FLIP | |
| 6372 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
| 6373 | OUT_RING(fb->pitch); |
| 6374 | OUT_RING(obj->gtt_offset | obj->tiling_mode); |
| 6375 | |
| 6376 | /* XXX Enabling the panel-fitter across page-flip is so far |
| 6377 | * untested on non-native modes, so ignore it for now. |
| 6378 | * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE; |
| 6379 | */ |
| 6380 | pf = 0; |
| 6381 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
| 6382 | OUT_RING(pf | pipesrc); |
| 6383 | ADVANCE_LP_RING(); |
| 6384 | out: |
| 6385 | return ret; |
| 6386 | } |
| 6387 | |
| 6388 | static int intel_gen6_queue_flip(struct drm_device *dev, |
| 6389 | struct drm_crtc *crtc, |
| 6390 | struct drm_framebuffer *fb, |
| 6391 | struct drm_i915_gem_object *obj) |
| 6392 | { |
| 6393 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 6394 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 6395 | uint32_t pf, pipesrc; |
| 6396 | int ret; |
| 6397 | |
| 6398 | ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv)); |
| 6399 | if (ret) |
| 6400 | goto out; |
| 6401 | |
| 6402 | ret = BEGIN_LP_RING(4); |
| 6403 | if (ret) |
| 6404 | goto out; |
| 6405 | |
| 6406 | OUT_RING(MI_DISPLAY_FLIP | |
| 6407 | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); |
| 6408 | OUT_RING(fb->pitch | obj->tiling_mode); |
| 6409 | OUT_RING(obj->gtt_offset); |
| 6410 | |
| 6411 | pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; |
| 6412 | pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; |
| 6413 | OUT_RING(pf | pipesrc); |
| 6414 | ADVANCE_LP_RING(); |
| 6415 | out: |
| 6416 | return ret; |
| 6417 | } |
| 6418 | |
Jesse Barnes | 7c9017e | 2011-06-16 12:18:54 -0700 | [diff] [blame] | 6419 | /* |
| 6420 | * On gen7 we currently use the blit ring because (in early silicon at least) |
| 6421 | * the render ring doesn't give us interrpts for page flip completion, which |
| 6422 | * means clients will hang after the first flip is queued. Fortunately the |
| 6423 | * blit ring generates interrupts properly, so use it instead. |
| 6424 | */ |
| 6425 | static int intel_gen7_queue_flip(struct drm_device *dev, |
| 6426 | struct drm_crtc *crtc, |
| 6427 | struct drm_framebuffer *fb, |
| 6428 | struct drm_i915_gem_object *obj) |
| 6429 | { |
| 6430 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 6431 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 6432 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; |
| 6433 | int ret; |
| 6434 | |
| 6435 | ret = intel_pin_and_fence_fb_obj(dev, obj, ring); |
| 6436 | if (ret) |
| 6437 | goto out; |
| 6438 | |
| 6439 | ret = intel_ring_begin(ring, 4); |
| 6440 | if (ret) |
| 6441 | goto out; |
| 6442 | |
| 6443 | intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19)); |
| 6444 | intel_ring_emit(ring, (fb->pitch | obj->tiling_mode)); |
| 6445 | intel_ring_emit(ring, (obj->gtt_offset)); |
| 6446 | intel_ring_emit(ring, (MI_NOOP)); |
| 6447 | intel_ring_advance(ring); |
| 6448 | out: |
| 6449 | return ret; |
| 6450 | } |
| 6451 | |
Jesse Barnes | 8c9f3aa | 2011-06-16 09:19:13 -0700 | [diff] [blame] | 6452 | static int intel_default_queue_flip(struct drm_device *dev, |
| 6453 | struct drm_crtc *crtc, |
| 6454 | struct drm_framebuffer *fb, |
| 6455 | struct drm_i915_gem_object *obj) |
| 6456 | { |
| 6457 | return -ENODEV; |
| 6458 | } |
| 6459 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6460 | static int intel_crtc_page_flip(struct drm_crtc *crtc, |
| 6461 | struct drm_framebuffer *fb, |
| 6462 | struct drm_pending_vblank_event *event) |
| 6463 | { |
| 6464 | struct drm_device *dev = crtc->dev; |
| 6465 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 6466 | struct intel_framebuffer *intel_fb; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6467 | struct drm_i915_gem_object *obj; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6468 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 6469 | struct intel_unpin_work *work; |
Jesse Barnes | 8c9f3aa | 2011-06-16 09:19:13 -0700 | [diff] [blame] | 6470 | unsigned long flags; |
Chris Wilson | 52e6863 | 2010-08-08 10:15:59 +0100 | [diff] [blame] | 6471 | int ret; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6472 | |
| 6473 | work = kzalloc(sizeof *work, GFP_KERNEL); |
| 6474 | if (work == NULL) |
| 6475 | return -ENOMEM; |
| 6476 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6477 | work->event = event; |
| 6478 | work->dev = crtc->dev; |
| 6479 | intel_fb = to_intel_framebuffer(crtc->fb); |
Jesse Barnes | b1b87f6 | 2010-01-26 14:40:05 -0800 | [diff] [blame] | 6480 | work->old_fb_obj = intel_fb->obj; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6481 | INIT_WORK(&work->work, intel_unpin_work_fn); |
| 6482 | |
| 6483 | /* We borrow the event spin lock for protecting unpin_work */ |
| 6484 | spin_lock_irqsave(&dev->event_lock, flags); |
| 6485 | if (intel_crtc->unpin_work) { |
| 6486 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 6487 | kfree(work); |
Chris Wilson | 468f0b4 | 2010-05-27 13:18:13 +0100 | [diff] [blame] | 6488 | |
| 6489 | DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6490 | return -EBUSY; |
| 6491 | } |
| 6492 | intel_crtc->unpin_work = work; |
| 6493 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 6494 | |
| 6495 | intel_fb = to_intel_framebuffer(fb); |
| 6496 | obj = intel_fb->obj; |
| 6497 | |
Chris Wilson | 468f0b4 | 2010-05-27 13:18:13 +0100 | [diff] [blame] | 6498 | mutex_lock(&dev->struct_mutex); |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6499 | |
Jesse Barnes | 75dfca80a | 2010-02-10 15:09:44 -0800 | [diff] [blame] | 6500 | /* Reference the objects for the scheduled work. */ |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6501 | drm_gem_object_reference(&work->old_fb_obj->base); |
| 6502 | drm_gem_object_reference(&obj->base); |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6503 | |
| 6504 | crtc->fb = fb; |
Chris Wilson | 96b099f | 2010-06-07 14:03:04 +0100 | [diff] [blame] | 6505 | |
| 6506 | ret = drm_vblank_get(dev, intel_crtc->pipe); |
| 6507 | if (ret) |
| 6508 | goto cleanup_objs; |
| 6509 | |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 6510 | work->pending_flip_obj = obj; |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 6511 | |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 6512 | work->enable_stall_check = true; |
| 6513 | |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 6514 | /* Block clients from rendering to the new back buffer until |
| 6515 | * the flip occurs and the object is no longer visible. |
| 6516 | */ |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6517 | atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 6518 | |
Jesse Barnes | 8c9f3aa | 2011-06-16 09:19:13 -0700 | [diff] [blame] | 6519 | ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); |
| 6520 | if (ret) |
| 6521 | goto cleanup_pending; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6522 | |
| 6523 | mutex_unlock(&dev->struct_mutex); |
| 6524 | |
Jesse Barnes | e5510fa | 2010-07-01 16:48:37 -0700 | [diff] [blame] | 6525 | trace_i915_flip_request(intel_crtc->plane, obj); |
| 6526 | |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6527 | return 0; |
Chris Wilson | 96b099f | 2010-06-07 14:03:04 +0100 | [diff] [blame] | 6528 | |
Jesse Barnes | 8c9f3aa | 2011-06-16 09:19:13 -0700 | [diff] [blame] | 6529 | cleanup_pending: |
| 6530 | atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); |
Chris Wilson | 96b099f | 2010-06-07 14:03:04 +0100 | [diff] [blame] | 6531 | cleanup_objs: |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6532 | drm_gem_object_unreference(&work->old_fb_obj->base); |
| 6533 | drm_gem_object_unreference(&obj->base); |
Chris Wilson | 96b099f | 2010-06-07 14:03:04 +0100 | [diff] [blame] | 6534 | mutex_unlock(&dev->struct_mutex); |
| 6535 | |
| 6536 | spin_lock_irqsave(&dev->event_lock, flags); |
| 6537 | intel_crtc->unpin_work = NULL; |
| 6538 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 6539 | |
| 6540 | kfree(work); |
| 6541 | |
| 6542 | return ret; |
Kristian Høgsberg | 6b95a20 | 2009-11-18 11:25:18 -0500 | [diff] [blame] | 6543 | } |
| 6544 | |
Chris Wilson | 47f1c6c | 2010-12-03 15:37:31 +0000 | [diff] [blame] | 6545 | static void intel_sanitize_modesetting(struct drm_device *dev, |
| 6546 | int pipe, int plane) |
| 6547 | { |
| 6548 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 6549 | u32 reg, val; |
| 6550 | |
| 6551 | if (HAS_PCH_SPLIT(dev)) |
| 6552 | return; |
| 6553 | |
| 6554 | /* Who knows what state these registers were left in by the BIOS or |
| 6555 | * grub? |
| 6556 | * |
| 6557 | * If we leave the registers in a conflicting state (e.g. with the |
| 6558 | * display plane reading from the other pipe than the one we intend |
| 6559 | * to use) then when we attempt to teardown the active mode, we will |
| 6560 | * not disable the pipes and planes in the correct order -- leaving |
| 6561 | * a plane reading from a disabled pipe and possibly leading to |
| 6562 | * undefined behaviour. |
| 6563 | */ |
| 6564 | |
| 6565 | reg = DSPCNTR(plane); |
| 6566 | val = I915_READ(reg); |
| 6567 | |
| 6568 | if ((val & DISPLAY_PLANE_ENABLE) == 0) |
| 6569 | return; |
| 6570 | if (!!(val & DISPPLANE_SEL_PIPE_MASK) == pipe) |
| 6571 | return; |
| 6572 | |
| 6573 | /* This display plane is active and attached to the other CPU pipe. */ |
| 6574 | pipe = !pipe; |
| 6575 | |
| 6576 | /* Disable the plane and wait for it to stop reading from the pipe. */ |
Jesse Barnes | b24e717 | 2011-01-04 15:09:30 -0800 | [diff] [blame] | 6577 | intel_disable_plane(dev_priv, plane, pipe); |
| 6578 | intel_disable_pipe(dev_priv, pipe); |
Chris Wilson | 47f1c6c | 2010-12-03 15:37:31 +0000 | [diff] [blame] | 6579 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6580 | |
Chris Wilson | f6e5b16 | 2011-04-12 18:06:51 +0100 | [diff] [blame] | 6581 | static void intel_crtc_reset(struct drm_crtc *crtc) |
| 6582 | { |
| 6583 | struct drm_device *dev = crtc->dev; |
| 6584 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 6585 | |
| 6586 | /* Reset flags back to the 'unknown' status so that they |
| 6587 | * will be correctly set on the initial modeset. |
| 6588 | */ |
| 6589 | intel_crtc->dpms_mode = -1; |
| 6590 | |
| 6591 | /* We need to fix up any BIOS configuration that conflicts with |
| 6592 | * our expectations. |
| 6593 | */ |
| 6594 | intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane); |
| 6595 | } |
| 6596 | |
| 6597 | static struct drm_crtc_helper_funcs intel_helper_funcs = { |
| 6598 | .dpms = intel_crtc_dpms, |
| 6599 | .mode_fixup = intel_crtc_mode_fixup, |
| 6600 | .mode_set = intel_crtc_mode_set, |
| 6601 | .mode_set_base = intel_pipe_set_base, |
| 6602 | .mode_set_base_atomic = intel_pipe_set_base_atomic, |
| 6603 | .load_lut = intel_crtc_load_lut, |
| 6604 | .disable = intel_crtc_disable, |
| 6605 | }; |
| 6606 | |
| 6607 | static const struct drm_crtc_funcs intel_crtc_funcs = { |
| 6608 | .reset = intel_crtc_reset, |
| 6609 | .cursor_set = intel_crtc_cursor_set, |
| 6610 | .cursor_move = intel_crtc_cursor_move, |
| 6611 | .gamma_set = intel_crtc_gamma_set, |
| 6612 | .set_config = drm_crtc_helper_set_config, |
| 6613 | .destroy = intel_crtc_destroy, |
| 6614 | .page_flip = intel_crtc_page_flip, |
| 6615 | }; |
| 6616 | |
Hannes Eder | b358d0a | 2008-12-18 21:18:47 +0100 | [diff] [blame] | 6617 | static void intel_crtc_init(struct drm_device *dev, int pipe) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6618 | { |
Jesse Barnes | 22fd0fa | 2009-12-02 13:42:53 -0800 | [diff] [blame] | 6619 | drm_i915_private_t *dev_priv = dev->dev_private; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6620 | struct intel_crtc *intel_crtc; |
| 6621 | int i; |
| 6622 | |
| 6623 | intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); |
| 6624 | if (intel_crtc == NULL) |
| 6625 | return; |
| 6626 | |
| 6627 | drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs); |
| 6628 | |
| 6629 | drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6630 | for (i = 0; i < 256; i++) { |
| 6631 | intel_crtc->lut_r[i] = i; |
| 6632 | intel_crtc->lut_g[i] = i; |
| 6633 | intel_crtc->lut_b[i] = i; |
| 6634 | } |
| 6635 | |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 6636 | /* Swap pipes & planes for FBC on pre-965 */ |
| 6637 | intel_crtc->pipe = pipe; |
| 6638 | intel_crtc->plane = pipe; |
Chris Wilson | e2e767a | 2010-09-13 16:53:12 +0100 | [diff] [blame] | 6639 | if (IS_MOBILE(dev) && IS_GEN3(dev)) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 6640 | DRM_DEBUG_KMS("swapping pipes & planes for FBC\n"); |
Chris Wilson | e2e767a | 2010-09-13 16:53:12 +0100 | [diff] [blame] | 6641 | intel_crtc->plane = !pipe; |
Jesse Barnes | 8082400 | 2009-09-10 15:28:06 -0700 | [diff] [blame] | 6642 | } |
| 6643 | |
Jesse Barnes | 22fd0fa | 2009-12-02 13:42:53 -0800 | [diff] [blame] | 6644 | BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) || |
| 6645 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL); |
| 6646 | dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base; |
| 6647 | dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; |
| 6648 | |
Chris Wilson | 5d1d0cc | 2011-01-24 15:02:15 +0000 | [diff] [blame] | 6649 | intel_crtc_reset(&intel_crtc->base); |
Chris Wilson | 04dbff5 | 2011-02-10 17:38:35 +0000 | [diff] [blame] | 6650 | intel_crtc->active = true; /* force the pipe off on setup_init_config */ |
Jesse Barnes | 7e7d76c | 2010-09-10 10:47:20 -0700 | [diff] [blame] | 6651 | |
| 6652 | if (HAS_PCH_SPLIT(dev)) { |
| 6653 | intel_helper_funcs.prepare = ironlake_crtc_prepare; |
| 6654 | intel_helper_funcs.commit = ironlake_crtc_commit; |
| 6655 | } else { |
| 6656 | intel_helper_funcs.prepare = i9xx_crtc_prepare; |
| 6657 | intel_helper_funcs.commit = i9xx_crtc_commit; |
| 6658 | } |
| 6659 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6660 | drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); |
| 6661 | |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 6662 | intel_crtc->busy = false; |
| 6663 | |
| 6664 | setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer, |
| 6665 | (unsigned long)intel_crtc); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6666 | } |
| 6667 | |
Carl Worth | 08d7b3d | 2009-04-29 14:43:54 -0700 | [diff] [blame] | 6668 | int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6669 | struct drm_file *file) |
Carl Worth | 08d7b3d | 2009-04-29 14:43:54 -0700 | [diff] [blame] | 6670 | { |
| 6671 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 6672 | struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; |
Daniel Vetter | c05422d | 2009-08-11 16:05:30 +0200 | [diff] [blame] | 6673 | struct drm_mode_object *drmmode_obj; |
| 6674 | struct intel_crtc *crtc; |
Carl Worth | 08d7b3d | 2009-04-29 14:43:54 -0700 | [diff] [blame] | 6675 | |
| 6676 | if (!dev_priv) { |
| 6677 | DRM_ERROR("called with no initialization\n"); |
| 6678 | return -EINVAL; |
| 6679 | } |
| 6680 | |
Daniel Vetter | c05422d | 2009-08-11 16:05:30 +0200 | [diff] [blame] | 6681 | drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, |
| 6682 | DRM_MODE_OBJECT_CRTC); |
Carl Worth | 08d7b3d | 2009-04-29 14:43:54 -0700 | [diff] [blame] | 6683 | |
Daniel Vetter | c05422d | 2009-08-11 16:05:30 +0200 | [diff] [blame] | 6684 | if (!drmmode_obj) { |
Carl Worth | 08d7b3d | 2009-04-29 14:43:54 -0700 | [diff] [blame] | 6685 | DRM_ERROR("no such CRTC id\n"); |
| 6686 | return -EINVAL; |
| 6687 | } |
| 6688 | |
Daniel Vetter | c05422d | 2009-08-11 16:05:30 +0200 | [diff] [blame] | 6689 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
| 6690 | pipe_from_crtc_id->pipe = crtc->pipe; |
Carl Worth | 08d7b3d | 2009-04-29 14:43:54 -0700 | [diff] [blame] | 6691 | |
Daniel Vetter | c05422d | 2009-08-11 16:05:30 +0200 | [diff] [blame] | 6692 | return 0; |
Carl Worth | 08d7b3d | 2009-04-29 14:43:54 -0700 | [diff] [blame] | 6693 | } |
| 6694 | |
Zhenyu Wang | c5e4df3 | 2010-03-30 14:39:27 +0800 | [diff] [blame] | 6695 | static int intel_encoder_clones(struct drm_device *dev, int type_mask) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6696 | { |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 6697 | struct intel_encoder *encoder; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6698 | int index_mask = 0; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6699 | int entry = 0; |
| 6700 | |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 6701 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
| 6702 | if (type_mask & encoder->clone_mask) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6703 | index_mask |= (1 << entry); |
| 6704 | entry++; |
| 6705 | } |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 6706 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6707 | return index_mask; |
| 6708 | } |
| 6709 | |
Chris Wilson | 4d30244 | 2010-12-14 19:21:29 +0000 | [diff] [blame] | 6710 | static bool has_edp_a(struct drm_device *dev) |
| 6711 | { |
| 6712 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 6713 | |
| 6714 | if (!IS_MOBILE(dev)) |
| 6715 | return false; |
| 6716 | |
| 6717 | if ((I915_READ(DP_A) & DP_DETECTED) == 0) |
| 6718 | return false; |
| 6719 | |
| 6720 | if (IS_GEN5(dev) && |
| 6721 | (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE)) |
| 6722 | return false; |
| 6723 | |
| 6724 | return true; |
| 6725 | } |
| 6726 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6727 | static void intel_setup_outputs(struct drm_device *dev) |
| 6728 | { |
Eric Anholt | 725e30a | 2009-01-22 13:01:02 -0800 | [diff] [blame] | 6729 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 6730 | struct intel_encoder *encoder; |
Adam Jackson | cb0953d | 2010-07-16 14:46:29 -0400 | [diff] [blame] | 6731 | bool dpd_is_edp = false; |
Chris Wilson | c5d1b51 | 2010-11-29 18:00:23 +0000 | [diff] [blame] | 6732 | bool has_lvds = false; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6733 | |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 6734 | if (IS_MOBILE(dev) && !IS_I830(dev)) |
Chris Wilson | c5d1b51 | 2010-11-29 18:00:23 +0000 | [diff] [blame] | 6735 | has_lvds = intel_lvds_init(dev); |
| 6736 | if (!has_lvds && !HAS_PCH_SPLIT(dev)) { |
| 6737 | /* disable the panel fitter on everything but LVDS */ |
| 6738 | I915_WRITE(PFIT_CONTROL, 0); |
| 6739 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6740 | |
Eric Anholt | bad720f | 2009-10-22 16:11:14 -0700 | [diff] [blame] | 6741 | if (HAS_PCH_SPLIT(dev)) { |
Adam Jackson | cb0953d | 2010-07-16 14:46:29 -0400 | [diff] [blame] | 6742 | dpd_is_edp = intel_dpd_is_edp(dev); |
Zhenyu Wang | 30ad48b | 2009-06-05 15:38:43 +0800 | [diff] [blame] | 6743 | |
Chris Wilson | 4d30244 | 2010-12-14 19:21:29 +0000 | [diff] [blame] | 6744 | if (has_edp_a(dev)) |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 6745 | intel_dp_init(dev, DP_A); |
| 6746 | |
Adam Jackson | cb0953d | 2010-07-16 14:46:29 -0400 | [diff] [blame] | 6747 | if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
| 6748 | intel_dp_init(dev, PCH_DP_D); |
| 6749 | } |
| 6750 | |
| 6751 | intel_crt_init(dev); |
| 6752 | |
| 6753 | if (HAS_PCH_SPLIT(dev)) { |
| 6754 | int found; |
| 6755 | |
Zhenyu Wang | 30ad48b | 2009-06-05 15:38:43 +0800 | [diff] [blame] | 6756 | if (I915_READ(HDMIB) & PORT_DETECTED) { |
Zhao Yakui | 461ed3c | 2010-03-30 15:11:33 +0800 | [diff] [blame] | 6757 | /* PCH SDVOB multiplex with HDMIB */ |
| 6758 | found = intel_sdvo_init(dev, PCH_SDVOB); |
Zhenyu Wang | 30ad48b | 2009-06-05 15:38:43 +0800 | [diff] [blame] | 6759 | if (!found) |
| 6760 | intel_hdmi_init(dev, HDMIB); |
Zhenyu Wang | 5eb08b6 | 2009-07-24 01:00:31 +0800 | [diff] [blame] | 6761 | if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) |
| 6762 | intel_dp_init(dev, PCH_DP_B); |
Zhenyu Wang | 30ad48b | 2009-06-05 15:38:43 +0800 | [diff] [blame] | 6763 | } |
| 6764 | |
| 6765 | if (I915_READ(HDMIC) & PORT_DETECTED) |
| 6766 | intel_hdmi_init(dev, HDMIC); |
| 6767 | |
| 6768 | if (I915_READ(HDMID) & PORT_DETECTED) |
| 6769 | intel_hdmi_init(dev, HDMID); |
| 6770 | |
Zhenyu Wang | 5eb08b6 | 2009-07-24 01:00:31 +0800 | [diff] [blame] | 6771 | if (I915_READ(PCH_DP_C) & DP_DETECTED) |
| 6772 | intel_dp_init(dev, PCH_DP_C); |
| 6773 | |
Adam Jackson | cb0953d | 2010-07-16 14:46:29 -0400 | [diff] [blame] | 6774 | if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED)) |
Zhenyu Wang | 5eb08b6 | 2009-07-24 01:00:31 +0800 | [diff] [blame] | 6775 | intel_dp_init(dev, PCH_DP_D); |
| 6776 | |
Zhenyu Wang | 103a196 | 2009-11-27 11:44:36 +0800 | [diff] [blame] | 6777 | } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { |
Ma Ling | 27185ae | 2009-08-24 13:50:23 +0800 | [diff] [blame] | 6778 | bool found = false; |
Eric Anholt | 7d57382 | 2009-01-02 13:33:00 -0800 | [diff] [blame] | 6779 | |
Eric Anholt | 725e30a | 2009-01-22 13:01:02 -0800 | [diff] [blame] | 6780 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6781 | DRM_DEBUG_KMS("probing SDVOB\n"); |
Eric Anholt | 725e30a | 2009-01-22 13:01:02 -0800 | [diff] [blame] | 6782 | found = intel_sdvo_init(dev, SDVOB); |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6783 | if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { |
| 6784 | DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); |
Eric Anholt | 725e30a | 2009-01-22 13:01:02 -0800 | [diff] [blame] | 6785 | intel_hdmi_init(dev, SDVOB); |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6786 | } |
Ma Ling | 27185ae | 2009-08-24 13:50:23 +0800 | [diff] [blame] | 6787 | |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6788 | if (!found && SUPPORTS_INTEGRATED_DP(dev)) { |
| 6789 | DRM_DEBUG_KMS("probing DP_B\n"); |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 6790 | intel_dp_init(dev, DP_B); |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6791 | } |
Eric Anholt | 725e30a | 2009-01-22 13:01:02 -0800 | [diff] [blame] | 6792 | } |
Kristian Høgsberg | 13520b0 | 2009-03-13 15:42:14 -0400 | [diff] [blame] | 6793 | |
| 6794 | /* Before G4X SDVOC doesn't have its own detect register */ |
Kristian Høgsberg | 13520b0 | 2009-03-13 15:42:14 -0400 | [diff] [blame] | 6795 | |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6796 | if (I915_READ(SDVOB) & SDVO_DETECTED) { |
| 6797 | DRM_DEBUG_KMS("probing SDVOC\n"); |
Eric Anholt | 725e30a | 2009-01-22 13:01:02 -0800 | [diff] [blame] | 6798 | found = intel_sdvo_init(dev, SDVOC); |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6799 | } |
Ma Ling | 27185ae | 2009-08-24 13:50:23 +0800 | [diff] [blame] | 6800 | |
| 6801 | if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { |
| 6802 | |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6803 | if (SUPPORTS_INTEGRATED_HDMI(dev)) { |
| 6804 | DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); |
Eric Anholt | 725e30a | 2009-01-22 13:01:02 -0800 | [diff] [blame] | 6805 | intel_hdmi_init(dev, SDVOC); |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6806 | } |
| 6807 | if (SUPPORTS_INTEGRATED_DP(dev)) { |
| 6808 | DRM_DEBUG_KMS("probing DP_C\n"); |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 6809 | intel_dp_init(dev, DP_C); |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6810 | } |
Eric Anholt | 725e30a | 2009-01-22 13:01:02 -0800 | [diff] [blame] | 6811 | } |
Ma Ling | 27185ae | 2009-08-24 13:50:23 +0800 | [diff] [blame] | 6812 | |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6813 | if (SUPPORTS_INTEGRATED_DP(dev) && |
| 6814 | (I915_READ(DP_D) & DP_DETECTED)) { |
| 6815 | DRM_DEBUG_KMS("probing DP_D\n"); |
Keith Packard | a4fc5ed | 2009-04-07 16:16:42 -0700 | [diff] [blame] | 6816 | intel_dp_init(dev, DP_D); |
Jesse Barnes | b01f2c3 | 2009-12-11 11:07:17 -0800 | [diff] [blame] | 6817 | } |
Eric Anholt | bad720f | 2009-10-22 16:11:14 -0700 | [diff] [blame] | 6818 | } else if (IS_GEN2(dev)) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6819 | intel_dvo_init(dev); |
| 6820 | |
Zhenyu Wang | 103a196 | 2009-11-27 11:44:36 +0800 | [diff] [blame] | 6821 | if (SUPPORTS_TV(dev)) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6822 | intel_tv_init(dev); |
| 6823 | |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 6824 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) { |
| 6825 | encoder->base.possible_crtcs = encoder->crtc_mask; |
| 6826 | encoder->base.possible_clones = |
| 6827 | intel_encoder_clones(dev, encoder->clone_mask); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6828 | } |
Chris Wilson | 47356eb | 2011-01-11 17:06:04 +0000 | [diff] [blame] | 6829 | |
| 6830 | intel_panel_setup_backlight(dev); |
Chris Wilson | 2c7111d | 2011-03-29 10:40:27 +0100 | [diff] [blame] | 6831 | |
| 6832 | /* disable all the possible outputs/crtcs before entering KMS mode */ |
| 6833 | drm_helper_disable_unused_functions(dev); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6834 | } |
| 6835 | |
| 6836 | static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) |
| 6837 | { |
| 6838 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6839 | |
| 6840 | drm_framebuffer_cleanup(fb); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6841 | drm_gem_object_unreference_unlocked(&intel_fb->obj->base); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6842 | |
| 6843 | kfree(intel_fb); |
| 6844 | } |
| 6845 | |
| 6846 | static int intel_user_framebuffer_create_handle(struct drm_framebuffer *fb, |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6847 | struct drm_file *file, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6848 | unsigned int *handle) |
| 6849 | { |
| 6850 | struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6851 | struct drm_i915_gem_object *obj = intel_fb->obj; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6852 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6853 | return drm_gem_handle_create(file, &obj->base, handle); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6854 | } |
| 6855 | |
| 6856 | static const struct drm_framebuffer_funcs intel_fb_funcs = { |
| 6857 | .destroy = intel_user_framebuffer_destroy, |
| 6858 | .create_handle = intel_user_framebuffer_create_handle, |
| 6859 | }; |
| 6860 | |
Dave Airlie | 3865167 | 2010-03-30 05:34:13 +0000 | [diff] [blame] | 6861 | int intel_framebuffer_init(struct drm_device *dev, |
| 6862 | struct intel_framebuffer *intel_fb, |
| 6863 | struct drm_mode_fb_cmd *mode_cmd, |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6864 | struct drm_i915_gem_object *obj) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6865 | { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6866 | int ret; |
| 6867 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6868 | if (obj->tiling_mode == I915_TILING_Y) |
Chris Wilson | 57cd650 | 2010-08-08 12:34:44 +0100 | [diff] [blame] | 6869 | return -EINVAL; |
| 6870 | |
| 6871 | if (mode_cmd->pitch & 63) |
| 6872 | return -EINVAL; |
| 6873 | |
| 6874 | switch (mode_cmd->bpp) { |
| 6875 | case 8: |
| 6876 | case 16: |
| 6877 | case 24: |
| 6878 | case 32: |
| 6879 | break; |
| 6880 | default: |
| 6881 | return -EINVAL; |
| 6882 | } |
| 6883 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6884 | ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); |
| 6885 | if (ret) { |
| 6886 | DRM_ERROR("framebuffer init failed %d\n", ret); |
| 6887 | return ret; |
| 6888 | } |
| 6889 | |
| 6890 | drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6891 | intel_fb->obj = obj; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6892 | return 0; |
| 6893 | } |
| 6894 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6895 | static struct drm_framebuffer * |
| 6896 | intel_user_framebuffer_create(struct drm_device *dev, |
| 6897 | struct drm_file *filp, |
| 6898 | struct drm_mode_fb_cmd *mode_cmd) |
| 6899 | { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6900 | struct drm_i915_gem_object *obj; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6901 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6902 | obj = to_intel_bo(drm_gem_object_lookup(dev, filp, mode_cmd->handle)); |
Chris Wilson | c872522 | 2011-02-19 11:31:06 +0000 | [diff] [blame] | 6903 | if (&obj->base == NULL) |
Chris Wilson | cce13ff | 2010-08-08 13:36:38 +0100 | [diff] [blame] | 6904 | return ERR_PTR(-ENOENT); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6905 | |
Chris Wilson | d2dff87 | 2011-04-19 08:36:26 +0100 | [diff] [blame] | 6906 | return intel_framebuffer_create(dev, mode_cmd, obj); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6907 | } |
| 6908 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6909 | static const struct drm_mode_config_funcs intel_mode_funcs = { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6910 | .fb_create = intel_user_framebuffer_create, |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 6911 | .output_poll_changed = intel_fb_output_poll_changed, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 6912 | }; |
| 6913 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6914 | static struct drm_i915_gem_object * |
Zou Nan hai | aa40d6b | 2010-06-25 13:40:23 +0800 | [diff] [blame] | 6915 | intel_alloc_context_page(struct drm_device *dev) |
Chris Wilson | 9ea8d05 | 2010-01-04 18:57:56 +0000 | [diff] [blame] | 6916 | { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6917 | struct drm_i915_gem_object *ctx; |
Chris Wilson | 9ea8d05 | 2010-01-04 18:57:56 +0000 | [diff] [blame] | 6918 | int ret; |
| 6919 | |
Ben Widawsky | 2c34b85 | 2011-03-19 18:14:26 -0700 | [diff] [blame] | 6920 | WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
| 6921 | |
Zou Nan hai | aa40d6b | 2010-06-25 13:40:23 +0800 | [diff] [blame] | 6922 | ctx = i915_gem_alloc_object(dev, 4096); |
| 6923 | if (!ctx) { |
Chris Wilson | 9ea8d05 | 2010-01-04 18:57:56 +0000 | [diff] [blame] | 6924 | DRM_DEBUG("failed to alloc power context, RC6 disabled\n"); |
| 6925 | return NULL; |
| 6926 | } |
| 6927 | |
Daniel Vetter | 75e9e91 | 2010-11-04 17:11:09 +0100 | [diff] [blame] | 6928 | ret = i915_gem_object_pin(ctx, 4096, true); |
Chris Wilson | 9ea8d05 | 2010-01-04 18:57:56 +0000 | [diff] [blame] | 6929 | if (ret) { |
| 6930 | DRM_ERROR("failed to pin power context: %d\n", ret); |
| 6931 | goto err_unref; |
| 6932 | } |
| 6933 | |
Zou Nan hai | aa40d6b | 2010-06-25 13:40:23 +0800 | [diff] [blame] | 6934 | ret = i915_gem_object_set_to_gtt_domain(ctx, 1); |
Chris Wilson | 9ea8d05 | 2010-01-04 18:57:56 +0000 | [diff] [blame] | 6935 | if (ret) { |
| 6936 | DRM_ERROR("failed to set-domain on power context: %d\n", ret); |
| 6937 | goto err_unpin; |
| 6938 | } |
Chris Wilson | 9ea8d05 | 2010-01-04 18:57:56 +0000 | [diff] [blame] | 6939 | |
Zou Nan hai | aa40d6b | 2010-06-25 13:40:23 +0800 | [diff] [blame] | 6940 | return ctx; |
Chris Wilson | 9ea8d05 | 2010-01-04 18:57:56 +0000 | [diff] [blame] | 6941 | |
| 6942 | err_unpin: |
Zou Nan hai | aa40d6b | 2010-06-25 13:40:23 +0800 | [diff] [blame] | 6943 | i915_gem_object_unpin(ctx); |
Chris Wilson | 9ea8d05 | 2010-01-04 18:57:56 +0000 | [diff] [blame] | 6944 | err_unref: |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 6945 | drm_gem_object_unreference(&ctx->base); |
Chris Wilson | 9ea8d05 | 2010-01-04 18:57:56 +0000 | [diff] [blame] | 6946 | mutex_unlock(&dev->struct_mutex); |
| 6947 | return NULL; |
| 6948 | } |
| 6949 | |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 6950 | bool ironlake_set_drps(struct drm_device *dev, u8 val) |
| 6951 | { |
| 6952 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 6953 | u16 rgvswctl; |
| 6954 | |
| 6955 | rgvswctl = I915_READ16(MEMSWCTL); |
| 6956 | if (rgvswctl & MEMCTL_CMD_STS) { |
| 6957 | DRM_DEBUG("gpu busy, RCS change rejected\n"); |
| 6958 | return false; /* still busy with another command */ |
| 6959 | } |
| 6960 | |
| 6961 | rgvswctl = (MEMCTL_CMD_CHFREQ << MEMCTL_CMD_SHIFT) | |
| 6962 | (val << MEMCTL_FREQ_SHIFT) | MEMCTL_SFCAVM; |
| 6963 | I915_WRITE16(MEMSWCTL, rgvswctl); |
| 6964 | POSTING_READ16(MEMSWCTL); |
| 6965 | |
| 6966 | rgvswctl |= MEMCTL_CMD_STS; |
| 6967 | I915_WRITE16(MEMSWCTL, rgvswctl); |
| 6968 | |
| 6969 | return true; |
| 6970 | } |
| 6971 | |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 6972 | void ironlake_enable_drps(struct drm_device *dev) |
| 6973 | { |
| 6974 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 6975 | u32 rgvmodectl = I915_READ(MEMMODECTL); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 6976 | u8 fmax, fmin, fstart, vstart; |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 6977 | |
Jesse Barnes | ea056c1 | 2010-09-10 10:02:13 -0700 | [diff] [blame] | 6978 | /* Enable temp reporting */ |
| 6979 | I915_WRITE16(PMMISC, I915_READ(PMMISC) | MCPPCE_EN); |
| 6980 | I915_WRITE16(TSC1, I915_READ(TSC1) | TSE); |
| 6981 | |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 6982 | /* 100ms RC evaluation intervals */ |
| 6983 | I915_WRITE(RCUPEI, 100000); |
| 6984 | I915_WRITE(RCDNEI, 100000); |
| 6985 | |
| 6986 | /* Set max/min thresholds to 90ms and 80ms respectively */ |
| 6987 | I915_WRITE(RCBMAXAVG, 90000); |
| 6988 | I915_WRITE(RCBMINAVG, 80000); |
| 6989 | |
| 6990 | I915_WRITE(MEMIHYST, 1); |
| 6991 | |
| 6992 | /* Set up min, max, and cur for interrupt handling */ |
| 6993 | fmax = (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT; |
| 6994 | fmin = (rgvmodectl & MEMMODE_FMIN_MASK); |
| 6995 | fstart = (rgvmodectl & MEMMODE_FSTART_MASK) >> |
| 6996 | MEMMODE_FSTART_SHIFT; |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 6997 | |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 6998 | vstart = (I915_READ(PXVFREQ_BASE + (fstart * 4)) & PXVFREQ_PX_MASK) >> |
| 6999 | PXVFREQ_PX_SHIFT; |
| 7000 | |
Jesse Barnes | 80dbf4b | 2010-11-01 14:12:01 -0700 | [diff] [blame] | 7001 | dev_priv->fmax = fmax; /* IPS callback will increase this */ |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 7002 | dev_priv->fstart = fstart; |
| 7003 | |
Jesse Barnes | 80dbf4b | 2010-11-01 14:12:01 -0700 | [diff] [blame] | 7004 | dev_priv->max_delay = fstart; |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7005 | dev_priv->min_delay = fmin; |
| 7006 | dev_priv->cur_delay = fstart; |
| 7007 | |
Jesse Barnes | 80dbf4b | 2010-11-01 14:12:01 -0700 | [diff] [blame] | 7008 | DRM_DEBUG_DRIVER("fmax: %d, fmin: %d, fstart: %d\n", |
| 7009 | fmax, fmin, fstart); |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 7010 | |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7011 | I915_WRITE(MEMINTREN, MEMINT_CX_SUPR_EN | MEMINT_EVAL_CHG_EN); |
| 7012 | |
| 7013 | /* |
| 7014 | * Interrupts will be enabled in ironlake_irq_postinstall |
| 7015 | */ |
| 7016 | |
| 7017 | I915_WRITE(VIDSTART, vstart); |
| 7018 | POSTING_READ(VIDSTART); |
| 7019 | |
| 7020 | rgvmodectl |= MEMMODE_SWMODE_EN; |
| 7021 | I915_WRITE(MEMMODECTL, rgvmodectl); |
| 7022 | |
Chris Wilson | 481b6af | 2010-08-23 17:43:35 +0100 | [diff] [blame] | 7023 | if (wait_for((I915_READ(MEMSWCTL) & MEMCTL_CMD_STS) == 0, 10)) |
Chris Wilson | 913d8d1 | 2010-08-07 11:01:35 +0100 | [diff] [blame] | 7024 | DRM_ERROR("stuck trying to change perf mode\n"); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7025 | msleep(1); |
| 7026 | |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 7027 | ironlake_set_drps(dev, fstart); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7028 | |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 7029 | dev_priv->last_count1 = I915_READ(0x112e4) + I915_READ(0x112e8) + |
| 7030 | I915_READ(0x112e0); |
| 7031 | dev_priv->last_time1 = jiffies_to_msecs(jiffies); |
| 7032 | dev_priv->last_count2 = I915_READ(0x112f4); |
| 7033 | getrawmonotonic(&dev_priv->last_time2); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7034 | } |
| 7035 | |
| 7036 | void ironlake_disable_drps(struct drm_device *dev) |
| 7037 | { |
| 7038 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 7039 | u16 rgvswctl = I915_READ16(MEMSWCTL); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7040 | |
| 7041 | /* Ack interrupts, disable EFC interrupt */ |
| 7042 | I915_WRITE(MEMINTREN, I915_READ(MEMINTREN) & ~MEMINT_EVAL_CHG_EN); |
| 7043 | I915_WRITE(MEMINTRSTS, MEMINT_EVAL_CHG); |
| 7044 | I915_WRITE(DEIER, I915_READ(DEIER) & ~DE_PCU_EVENT); |
| 7045 | I915_WRITE(DEIIR, DE_PCU_EVENT); |
| 7046 | I915_WRITE(DEIMR, I915_READ(DEIMR) | DE_PCU_EVENT); |
| 7047 | |
| 7048 | /* Go back to the starting frequency */ |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 7049 | ironlake_set_drps(dev, dev_priv->fstart); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7050 | msleep(1); |
| 7051 | rgvswctl |= MEMCTL_CMD_STS; |
| 7052 | I915_WRITE(MEMSWCTL, rgvswctl); |
| 7053 | msleep(1); |
| 7054 | |
| 7055 | } |
| 7056 | |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 7057 | void gen6_set_rps(struct drm_device *dev, u8 val) |
| 7058 | { |
| 7059 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7060 | u32 swreq; |
| 7061 | |
| 7062 | swreq = (val & 0x3ff) << 25; |
| 7063 | I915_WRITE(GEN6_RPNSWREQ, swreq); |
| 7064 | } |
| 7065 | |
| 7066 | void gen6_disable_rps(struct drm_device *dev) |
| 7067 | { |
| 7068 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7069 | |
| 7070 | I915_WRITE(GEN6_RPNSWREQ, 1 << 31); |
| 7071 | I915_WRITE(GEN6_PMINTRMSK, 0xffffffff); |
| 7072 | I915_WRITE(GEN6_PMIER, 0); |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 7073 | |
| 7074 | spin_lock_irq(&dev_priv->rps_lock); |
| 7075 | dev_priv->pm_iir = 0; |
| 7076 | spin_unlock_irq(&dev_priv->rps_lock); |
| 7077 | |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 7078 | I915_WRITE(GEN6_PMIIR, I915_READ(GEN6_PMIIR)); |
| 7079 | } |
| 7080 | |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 7081 | static unsigned long intel_pxfreq(u32 vidfreq) |
| 7082 | { |
| 7083 | unsigned long freq; |
| 7084 | int div = (vidfreq & 0x3f0000) >> 16; |
| 7085 | int post = (vidfreq & 0x3000) >> 12; |
| 7086 | int pre = (vidfreq & 0x7); |
| 7087 | |
| 7088 | if (!pre) |
| 7089 | return 0; |
| 7090 | |
| 7091 | freq = ((div * 133333) / ((1<<post) * pre)); |
| 7092 | |
| 7093 | return freq; |
| 7094 | } |
| 7095 | |
| 7096 | void intel_init_emon(struct drm_device *dev) |
| 7097 | { |
| 7098 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7099 | u32 lcfuse; |
| 7100 | u8 pxw[16]; |
| 7101 | int i; |
| 7102 | |
| 7103 | /* Disable to program */ |
| 7104 | I915_WRITE(ECR, 0); |
| 7105 | POSTING_READ(ECR); |
| 7106 | |
| 7107 | /* Program energy weights for various events */ |
| 7108 | I915_WRITE(SDEW, 0x15040d00); |
| 7109 | I915_WRITE(CSIEW0, 0x007f0000); |
| 7110 | I915_WRITE(CSIEW1, 0x1e220004); |
| 7111 | I915_WRITE(CSIEW2, 0x04000004); |
| 7112 | |
| 7113 | for (i = 0; i < 5; i++) |
| 7114 | I915_WRITE(PEW + (i * 4), 0); |
| 7115 | for (i = 0; i < 3; i++) |
| 7116 | I915_WRITE(DEW + (i * 4), 0); |
| 7117 | |
| 7118 | /* Program P-state weights to account for frequency power adjustment */ |
| 7119 | for (i = 0; i < 16; i++) { |
| 7120 | u32 pxvidfreq = I915_READ(PXVFREQ_BASE + (i * 4)); |
| 7121 | unsigned long freq = intel_pxfreq(pxvidfreq); |
| 7122 | unsigned long vid = (pxvidfreq & PXVFREQ_PX_MASK) >> |
| 7123 | PXVFREQ_PX_SHIFT; |
| 7124 | unsigned long val; |
| 7125 | |
| 7126 | val = vid * vid; |
| 7127 | val *= (freq / 1000); |
| 7128 | val *= 255; |
| 7129 | val /= (127*127*900); |
| 7130 | if (val > 0xff) |
| 7131 | DRM_ERROR("bad pxval: %ld\n", val); |
| 7132 | pxw[i] = val; |
| 7133 | } |
| 7134 | /* Render standby states get 0 weight */ |
| 7135 | pxw[14] = 0; |
| 7136 | pxw[15] = 0; |
| 7137 | |
| 7138 | for (i = 0; i < 4; i++) { |
| 7139 | u32 val = (pxw[i*4] << 24) | (pxw[(i*4)+1] << 16) | |
| 7140 | (pxw[(i*4)+2] << 8) | (pxw[(i*4)+3]); |
| 7141 | I915_WRITE(PXW + (i * 4), val); |
| 7142 | } |
| 7143 | |
| 7144 | /* Adjust magic regs to magic values (more experimental results) */ |
| 7145 | I915_WRITE(OGW0, 0); |
| 7146 | I915_WRITE(OGW1, 0); |
| 7147 | I915_WRITE(EG0, 0x00007f00); |
| 7148 | I915_WRITE(EG1, 0x0000000e); |
| 7149 | I915_WRITE(EG2, 0x000e0000); |
| 7150 | I915_WRITE(EG3, 0x68000300); |
| 7151 | I915_WRITE(EG4, 0x42000000); |
| 7152 | I915_WRITE(EG5, 0x00140031); |
| 7153 | I915_WRITE(EG6, 0); |
| 7154 | I915_WRITE(EG7, 0); |
| 7155 | |
| 7156 | for (i = 0; i < 8; i++) |
| 7157 | I915_WRITE(PXWL + (i * 4), 0); |
| 7158 | |
| 7159 | /* Enable PMON + select events */ |
| 7160 | I915_WRITE(ECR, 0x80000019); |
| 7161 | |
| 7162 | lcfuse = I915_READ(LCFUSE02); |
| 7163 | |
| 7164 | dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK); |
| 7165 | } |
| 7166 | |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 7167 | void gen6_enable_rps(struct drm_i915_private *dev_priv) |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7168 | { |
Jesse Barnes | a6044e2 | 2010-12-20 11:34:20 -0800 | [diff] [blame] | 7169 | u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP); |
| 7170 | u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS); |
Jesse Barnes | 7df8721 | 2011-03-30 14:08:56 -0700 | [diff] [blame] | 7171 | u32 pcu_mbox, rc6_mask = 0; |
Jesse Barnes | a6044e2 | 2010-12-20 11:34:20 -0800 | [diff] [blame] | 7172 | int cur_freq, min_freq, max_freq; |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7173 | int i; |
| 7174 | |
| 7175 | /* Here begins a magic sequence of register writes to enable |
| 7176 | * auto-downclocking. |
| 7177 | * |
| 7178 | * Perhaps there might be some value in exposing these to |
| 7179 | * userspace... |
| 7180 | */ |
| 7181 | I915_WRITE(GEN6_RC_STATE, 0); |
Ben Widawsky | d1ebd81 | 2011-04-25 20:11:50 +0100 | [diff] [blame] | 7182 | mutex_lock(&dev_priv->dev->struct_mutex); |
Ben Widawsky | fcca792 | 2011-04-25 11:23:07 -0700 | [diff] [blame] | 7183 | gen6_gt_force_wake_get(dev_priv); |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7184 | |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 7185 | /* disable the counters and set deterministic thresholds */ |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7186 | I915_WRITE(GEN6_RC_CONTROL, 0); |
| 7187 | |
| 7188 | I915_WRITE(GEN6_RC1_WAKE_RATE_LIMIT, 1000 << 16); |
| 7189 | I915_WRITE(GEN6_RC6_WAKE_RATE_LIMIT, 40 << 16 | 30); |
| 7190 | I915_WRITE(GEN6_RC6pp_WAKE_RATE_LIMIT, 30); |
| 7191 | I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000); |
| 7192 | I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25); |
| 7193 | |
| 7194 | for (i = 0; i < I915_NUM_RINGS; i++) |
| 7195 | I915_WRITE(RING_MAX_IDLE(dev_priv->ring[i].mmio_base), 10); |
| 7196 | |
| 7197 | I915_WRITE(GEN6_RC_SLEEP, 0); |
| 7198 | I915_WRITE(GEN6_RC1e_THRESHOLD, 1000); |
| 7199 | I915_WRITE(GEN6_RC6_THRESHOLD, 50000); |
| 7200 | I915_WRITE(GEN6_RC6p_THRESHOLD, 100000); |
| 7201 | I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */ |
| 7202 | |
Jesse Barnes | 7df8721 | 2011-03-30 14:08:56 -0700 | [diff] [blame] | 7203 | if (i915_enable_rc6) |
| 7204 | rc6_mask = GEN6_RC_CTL_RC6p_ENABLE | |
| 7205 | GEN6_RC_CTL_RC6_ENABLE; |
| 7206 | |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7207 | I915_WRITE(GEN6_RC_CONTROL, |
Jesse Barnes | 7df8721 | 2011-03-30 14:08:56 -0700 | [diff] [blame] | 7208 | rc6_mask | |
Chris Wilson | 9c3d2f7 | 2010-12-17 10:54:26 +0000 | [diff] [blame] | 7209 | GEN6_RC_CTL_EI_MODE(1) | |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7210 | GEN6_RC_CTL_HW_ENABLE); |
| 7211 | |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 7212 | I915_WRITE(GEN6_RPNSWREQ, |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7213 | GEN6_FREQUENCY(10) | |
| 7214 | GEN6_OFFSET(0) | |
| 7215 | GEN6_AGGRESSIVE_TURBO); |
| 7216 | I915_WRITE(GEN6_RC_VIDEO_FREQ, |
| 7217 | GEN6_FREQUENCY(12)); |
| 7218 | |
| 7219 | I915_WRITE(GEN6_RP_DOWN_TIMEOUT, 1000000); |
| 7220 | I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, |
| 7221 | 18 << 24 | |
| 7222 | 6 << 16); |
Jesse Barnes | ccab5c8 | 2011-01-18 15:49:25 -0800 | [diff] [blame] | 7223 | I915_WRITE(GEN6_RP_UP_THRESHOLD, 10000); |
| 7224 | I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 1000000); |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7225 | I915_WRITE(GEN6_RP_UP_EI, 100000); |
Jesse Barnes | ccab5c8 | 2011-01-18 15:49:25 -0800 | [diff] [blame] | 7226 | I915_WRITE(GEN6_RP_DOWN_EI, 5000000); |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7227 | I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10); |
| 7228 | I915_WRITE(GEN6_RP_CONTROL, |
| 7229 | GEN6_RP_MEDIA_TURBO | |
| 7230 | GEN6_RP_USE_NORMAL_FREQ | |
| 7231 | GEN6_RP_MEDIA_IS_GFX | |
| 7232 | GEN6_RP_ENABLE | |
Jesse Barnes | ccab5c8 | 2011-01-18 15:49:25 -0800 | [diff] [blame] | 7233 | GEN6_RP_UP_BUSY_AVG | |
| 7234 | GEN6_RP_DOWN_IDLE_CONT); |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7235 | |
| 7236 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, |
| 7237 | 500)) |
| 7238 | DRM_ERROR("timeout waiting for pcode mailbox to become idle\n"); |
| 7239 | |
| 7240 | I915_WRITE(GEN6_PCODE_DATA, 0); |
| 7241 | I915_WRITE(GEN6_PCODE_MAILBOX, |
| 7242 | GEN6_PCODE_READY | |
| 7243 | GEN6_PCODE_WRITE_MIN_FREQ_TABLE); |
| 7244 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, |
| 7245 | 500)) |
| 7246 | DRM_ERROR("timeout waiting for pcode mailbox to finish\n"); |
| 7247 | |
Jesse Barnes | a6044e2 | 2010-12-20 11:34:20 -0800 | [diff] [blame] | 7248 | min_freq = (rp_state_cap & 0xff0000) >> 16; |
| 7249 | max_freq = rp_state_cap & 0xff; |
| 7250 | cur_freq = (gt_perf_status & 0xff00) >> 8; |
| 7251 | |
| 7252 | /* Check for overclock support */ |
| 7253 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, |
| 7254 | 500)) |
| 7255 | DRM_ERROR("timeout waiting for pcode mailbox to become idle\n"); |
| 7256 | I915_WRITE(GEN6_PCODE_MAILBOX, GEN6_READ_OC_PARAMS); |
| 7257 | pcu_mbox = I915_READ(GEN6_PCODE_DATA); |
| 7258 | if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) & GEN6_PCODE_READY) == 0, |
| 7259 | 500)) |
| 7260 | DRM_ERROR("timeout waiting for pcode mailbox to finish\n"); |
| 7261 | if (pcu_mbox & (1<<31)) { /* OC supported */ |
| 7262 | max_freq = pcu_mbox & 0xff; |
Jesse Barnes | e281fca | 2011-03-18 10:32:07 -0700 | [diff] [blame] | 7263 | DRM_DEBUG_DRIVER("overclocking supported, adjusting frequency max to %dMHz\n", pcu_mbox * 50); |
Jesse Barnes | a6044e2 | 2010-12-20 11:34:20 -0800 | [diff] [blame] | 7264 | } |
| 7265 | |
| 7266 | /* In units of 100MHz */ |
| 7267 | dev_priv->max_delay = max_freq; |
| 7268 | dev_priv->min_delay = min_freq; |
| 7269 | dev_priv->cur_delay = cur_freq; |
| 7270 | |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7271 | /* requires MSI enabled */ |
| 7272 | I915_WRITE(GEN6_PMIER, |
| 7273 | GEN6_PM_MBOX_EVENT | |
| 7274 | GEN6_PM_THERMAL_EVENT | |
| 7275 | GEN6_PM_RP_DOWN_TIMEOUT | |
| 7276 | GEN6_PM_RP_UP_THRESHOLD | |
| 7277 | GEN6_PM_RP_DOWN_THRESHOLD | |
| 7278 | GEN6_PM_RP_UP_EI_EXPIRED | |
| 7279 | GEN6_PM_RP_DOWN_EI_EXPIRED); |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 7280 | spin_lock_irq(&dev_priv->rps_lock); |
| 7281 | WARN_ON(dev_priv->pm_iir != 0); |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 7282 | I915_WRITE(GEN6_PMIMR, 0); |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 7283 | spin_unlock_irq(&dev_priv->rps_lock); |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 7284 | /* enable all PM interrupts */ |
| 7285 | I915_WRITE(GEN6_PMINTRMSK, 0); |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7286 | |
Ben Widawsky | fcca792 | 2011-04-25 11:23:07 -0700 | [diff] [blame] | 7287 | gen6_gt_force_wake_put(dev_priv); |
Ben Widawsky | d1ebd81 | 2011-04-25 20:11:50 +0100 | [diff] [blame] | 7288 | mutex_unlock(&dev_priv->dev->struct_mutex); |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7289 | } |
| 7290 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7291 | static void ironlake_init_clock_gating(struct drm_device *dev) |
| 7292 | { |
| 7293 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7294 | uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; |
| 7295 | |
| 7296 | /* Required for FBC */ |
| 7297 | dspclk_gate |= DPFCUNIT_CLOCK_GATE_DISABLE | |
| 7298 | DPFCRUNIT_CLOCK_GATE_DISABLE | |
| 7299 | DPFDUNIT_CLOCK_GATE_DISABLE; |
| 7300 | /* Required for CxSR */ |
| 7301 | dspclk_gate |= DPARBUNIT_CLOCK_GATE_DISABLE; |
| 7302 | |
| 7303 | I915_WRITE(PCH_3DCGDIS0, |
| 7304 | MARIUNIT_CLOCK_GATE_DISABLE | |
| 7305 | SVSMUNIT_CLOCK_GATE_DISABLE); |
| 7306 | I915_WRITE(PCH_3DCGDIS1, |
| 7307 | VFMUNIT_CLOCK_GATE_DISABLE); |
| 7308 | |
| 7309 | I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); |
| 7310 | |
| 7311 | /* |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7312 | * According to the spec the following bits should be set in |
| 7313 | * order to enable memory self-refresh |
| 7314 | * The bit 22/21 of 0x42004 |
| 7315 | * The bit 5 of 0x42020 |
| 7316 | * The bit 15 of 0x45000 |
| 7317 | */ |
| 7318 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
| 7319 | (I915_READ(ILK_DISPLAY_CHICKEN2) | |
| 7320 | ILK_DPARB_GATE | ILK_VSDPFD_FULL)); |
| 7321 | I915_WRITE(ILK_DSPCLK_GATE, |
| 7322 | (I915_READ(ILK_DSPCLK_GATE) | |
| 7323 | ILK_DPARB_CLK_GATE)); |
| 7324 | I915_WRITE(DISP_ARB_CTL, |
| 7325 | (I915_READ(DISP_ARB_CTL) | |
| 7326 | DISP_FBC_WM_DIS)); |
| 7327 | I915_WRITE(WM3_LP_ILK, 0); |
| 7328 | I915_WRITE(WM2_LP_ILK, 0); |
| 7329 | I915_WRITE(WM1_LP_ILK, 0); |
| 7330 | |
| 7331 | /* |
| 7332 | * Based on the document from hardware guys the following bits |
| 7333 | * should be set unconditionally in order to enable FBC. |
| 7334 | * The bit 22 of 0x42000 |
| 7335 | * The bit 22 of 0x42004 |
| 7336 | * The bit 7,8,9 of 0x42020. |
| 7337 | */ |
| 7338 | if (IS_IRONLAKE_M(dev)) { |
| 7339 | I915_WRITE(ILK_DISPLAY_CHICKEN1, |
| 7340 | I915_READ(ILK_DISPLAY_CHICKEN1) | |
| 7341 | ILK_FBCQ_DIS); |
| 7342 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
| 7343 | I915_READ(ILK_DISPLAY_CHICKEN2) | |
| 7344 | ILK_DPARB_GATE); |
| 7345 | I915_WRITE(ILK_DSPCLK_GATE, |
| 7346 | I915_READ(ILK_DSPCLK_GATE) | |
| 7347 | ILK_DPFC_DIS1 | |
| 7348 | ILK_DPFC_DIS2 | |
| 7349 | ILK_CLK_FBC); |
| 7350 | } |
| 7351 | |
| 7352 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
| 7353 | I915_READ(ILK_DISPLAY_CHICKEN2) | |
| 7354 | ILK_ELPIN_409_SELECT); |
| 7355 | I915_WRITE(_3D_CHICKEN2, |
| 7356 | _3D_CHICKEN2_WM_READ_PIPELINED << 16 | |
| 7357 | _3D_CHICKEN2_WM_READ_PIPELINED); |
| 7358 | } |
| 7359 | |
| 7360 | static void gen6_init_clock_gating(struct drm_device *dev) |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7361 | { |
| 7362 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 7363 | int pipe; |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7364 | uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; |
| 7365 | |
| 7366 | I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7367 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7368 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
| 7369 | I915_READ(ILK_DISPLAY_CHICKEN2) | |
| 7370 | ILK_ELPIN_409_SELECT); |
Eric Anholt | 8956c8b | 2010-03-18 13:21:14 -0700 | [diff] [blame] | 7371 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7372 | I915_WRITE(WM3_LP_ILK, 0); |
| 7373 | I915_WRITE(WM2_LP_ILK, 0); |
| 7374 | I915_WRITE(WM1_LP_ILK, 0); |
Eric Anholt | 8956c8b | 2010-03-18 13:21:14 -0700 | [diff] [blame] | 7375 | |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 7376 | /* |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7377 | * According to the spec the following bits should be |
| 7378 | * set in order to enable memory self-refresh and fbc: |
| 7379 | * The bit21 and bit22 of 0x42000 |
| 7380 | * The bit21 and bit22 of 0x42004 |
| 7381 | * The bit5 and bit7 of 0x42020 |
| 7382 | * The bit14 of 0x70180 |
| 7383 | * The bit14 of 0x71180 |
Jesse Barnes | 382b093 | 2010-10-07 16:01:25 -0700 | [diff] [blame] | 7384 | */ |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7385 | I915_WRITE(ILK_DISPLAY_CHICKEN1, |
| 7386 | I915_READ(ILK_DISPLAY_CHICKEN1) | |
| 7387 | ILK_FBCQ_DIS | ILK_PABSTRETCH_DIS); |
| 7388 | I915_WRITE(ILK_DISPLAY_CHICKEN2, |
| 7389 | I915_READ(ILK_DISPLAY_CHICKEN2) | |
| 7390 | ILK_DPARB_GATE | ILK_VSDPFD_FULL); |
| 7391 | I915_WRITE(ILK_DSPCLK_GATE, |
| 7392 | I915_READ(ILK_DSPCLK_GATE) | |
| 7393 | ILK_DPARB_CLK_GATE | |
| 7394 | ILK_DPFD_CLK_GATE); |
Jesse Barnes | 382b093 | 2010-10-07 16:01:25 -0700 | [diff] [blame] | 7395 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7396 | for_each_pipe(pipe) |
| 7397 | I915_WRITE(DSPCNTR(pipe), |
| 7398 | I915_READ(DSPCNTR(pipe)) | |
| 7399 | DISPPLANE_TRICKLE_FEED_DISABLE); |
| 7400 | } |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 7401 | |
Jesse Barnes | 28963a3 | 2011-05-11 09:42:30 -0700 | [diff] [blame] | 7402 | static void ivybridge_init_clock_gating(struct drm_device *dev) |
| 7403 | { |
| 7404 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7405 | int pipe; |
| 7406 | uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7407 | |
Jesse Barnes | 28963a3 | 2011-05-11 09:42:30 -0700 | [diff] [blame] | 7408 | I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 7409 | |
Jesse Barnes | 28963a3 | 2011-05-11 09:42:30 -0700 | [diff] [blame] | 7410 | I915_WRITE(WM3_LP_ILK, 0); |
| 7411 | I915_WRITE(WM2_LP_ILK, 0); |
| 7412 | I915_WRITE(WM1_LP_ILK, 0); |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 7413 | |
Jesse Barnes | 28963a3 | 2011-05-11 09:42:30 -0700 | [diff] [blame] | 7414 | I915_WRITE(ILK_DSPCLK_GATE, IVB_VRHUNIT_CLK_GATE); |
Eric Anholt | de6e2ea | 2010-11-06 14:53:32 -0700 | [diff] [blame] | 7415 | |
Jesse Barnes | 28963a3 | 2011-05-11 09:42:30 -0700 | [diff] [blame] | 7416 | for_each_pipe(pipe) |
| 7417 | I915_WRITE(DSPCNTR(pipe), |
| 7418 | I915_READ(DSPCNTR(pipe)) | |
| 7419 | DISPPLANE_TRICKLE_FEED_DISABLE); |
| 7420 | } |
Eric Anholt | 67e92af | 2010-11-06 14:53:33 -0700 | [diff] [blame] | 7421 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7422 | static void g4x_init_clock_gating(struct drm_device *dev) |
| 7423 | { |
| 7424 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7425 | uint32_t dspclk_gate; |
Chris Wilson | 8fd2685 | 2010-12-08 18:40:43 +0000 | [diff] [blame] | 7426 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7427 | I915_WRITE(RENCLK_GATE_D1, 0); |
| 7428 | I915_WRITE(RENCLK_GATE_D2, VF_UNIT_CLOCK_GATE_DISABLE | |
| 7429 | GS_UNIT_CLOCK_GATE_DISABLE | |
| 7430 | CL_UNIT_CLOCK_GATE_DISABLE); |
| 7431 | I915_WRITE(RAMCLK_GATE_D, 0); |
| 7432 | dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE | |
| 7433 | OVRUNIT_CLOCK_GATE_DISABLE | |
| 7434 | OVCUNIT_CLOCK_GATE_DISABLE; |
| 7435 | if (IS_GM45(dev)) |
| 7436 | dspclk_gate |= DSSUNIT_CLOCK_GATE_DISABLE; |
| 7437 | I915_WRITE(DSPCLK_GATE_D, dspclk_gate); |
| 7438 | } |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 7439 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7440 | static void crestline_init_clock_gating(struct drm_device *dev) |
| 7441 | { |
| 7442 | struct drm_i915_private *dev_priv = dev->dev_private; |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 7443 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7444 | I915_WRITE(RENCLK_GATE_D1, I965_RCC_CLOCK_GATE_DISABLE); |
| 7445 | I915_WRITE(RENCLK_GATE_D2, 0); |
| 7446 | I915_WRITE(DSPCLK_GATE_D, 0); |
| 7447 | I915_WRITE(RAMCLK_GATE_D, 0); |
| 7448 | I915_WRITE16(DEUC, 0); |
| 7449 | } |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7450 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7451 | static void broadwater_init_clock_gating(struct drm_device *dev) |
| 7452 | { |
| 7453 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7454 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7455 | I915_WRITE(RENCLK_GATE_D1, I965_RCZ_CLOCK_GATE_DISABLE | |
| 7456 | I965_RCC_CLOCK_GATE_DISABLE | |
| 7457 | I965_RCPB_CLOCK_GATE_DISABLE | |
| 7458 | I965_ISC_CLOCK_GATE_DISABLE | |
| 7459 | I965_FBC_CLOCK_GATE_DISABLE); |
| 7460 | I915_WRITE(RENCLK_GATE_D2, 0); |
| 7461 | } |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7462 | |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7463 | static void gen3_init_clock_gating(struct drm_device *dev) |
| 7464 | { |
| 7465 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7466 | u32 dstate = I915_READ(D_STATE); |
| 7467 | |
| 7468 | dstate |= DSTATE_PLL_D3_OFF | DSTATE_GFX_CLOCK_GATING | |
| 7469 | DSTATE_DOT_CLOCK_GATING; |
| 7470 | I915_WRITE(D_STATE, dstate); |
| 7471 | } |
| 7472 | |
| 7473 | static void i85x_init_clock_gating(struct drm_device *dev) |
| 7474 | { |
| 7475 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7476 | |
| 7477 | I915_WRITE(RENCLK_GATE_D1, SV_CLOCK_GATE_DISABLE); |
| 7478 | } |
| 7479 | |
| 7480 | static void i830_init_clock_gating(struct drm_device *dev) |
| 7481 | { |
| 7482 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7483 | |
| 7484 | I915_WRITE(DSPCLK_GATE_D, OVRUNIT_CLOCK_GATE_DISABLE); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7485 | } |
| 7486 | |
Jesse Barnes | 645c62a | 2011-05-11 09:49:31 -0700 | [diff] [blame] | 7487 | static void ibx_init_clock_gating(struct drm_device *dev) |
| 7488 | { |
| 7489 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7490 | |
| 7491 | /* |
| 7492 | * On Ibex Peak and Cougar Point, we need to disable clock |
| 7493 | * gating for the panel power sequencer or it will fail to |
| 7494 | * start up when no ports are active. |
| 7495 | */ |
| 7496 | I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE); |
| 7497 | } |
| 7498 | |
| 7499 | static void cpt_init_clock_gating(struct drm_device *dev) |
| 7500 | { |
| 7501 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7502 | |
| 7503 | /* |
| 7504 | * On Ibex Peak and Cougar Point, we need to disable clock |
| 7505 | * gating for the panel power sequencer or it will fail to |
| 7506 | * start up when no ports are active. |
| 7507 | */ |
| 7508 | I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE); |
| 7509 | I915_WRITE(SOUTH_CHICKEN2, I915_READ(SOUTH_CHICKEN2) | |
| 7510 | DPLS_EDP_PPS_FIX_DIS); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 7511 | } |
| 7512 | |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7513 | static void ironlake_teardown_rc6(struct drm_device *dev) |
Chris Wilson | 0cdab21 | 2010-12-05 17:27:06 +0000 | [diff] [blame] | 7514 | { |
| 7515 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7516 | |
| 7517 | if (dev_priv->renderctx) { |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7518 | i915_gem_object_unpin(dev_priv->renderctx); |
| 7519 | drm_gem_object_unreference(&dev_priv->renderctx->base); |
Chris Wilson | 0cdab21 | 2010-12-05 17:27:06 +0000 | [diff] [blame] | 7520 | dev_priv->renderctx = NULL; |
| 7521 | } |
| 7522 | |
| 7523 | if (dev_priv->pwrctx) { |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7524 | i915_gem_object_unpin(dev_priv->pwrctx); |
| 7525 | drm_gem_object_unreference(&dev_priv->pwrctx->base); |
Chris Wilson | 0cdab21 | 2010-12-05 17:27:06 +0000 | [diff] [blame] | 7526 | dev_priv->pwrctx = NULL; |
| 7527 | } |
| 7528 | } |
| 7529 | |
Jesse Barnes | d5bb081 | 2011-01-05 12:01:26 -0800 | [diff] [blame] | 7530 | static void ironlake_disable_rc6(struct drm_device *dev) |
| 7531 | { |
| 7532 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7533 | |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7534 | if (I915_READ(PWRCTXA)) { |
| 7535 | /* Wake the GPU, prevent RC6, then restore RSTDBYCTL */ |
| 7536 | I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) | RCX_SW_EXIT); |
| 7537 | wait_for(((I915_READ(RSTDBYCTL) & RSX_STATUS_MASK) == RSX_STATUS_ON), |
| 7538 | 50); |
| 7539 | |
| 7540 | I915_WRITE(PWRCTXA, 0); |
| 7541 | POSTING_READ(PWRCTXA); |
| 7542 | |
| 7543 | I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); |
| 7544 | POSTING_READ(RSTDBYCTL); |
| 7545 | } |
| 7546 | |
Chris Wilson | 9950730 | 2011-02-24 09:42:52 +0000 | [diff] [blame] | 7547 | ironlake_teardown_rc6(dev); |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7548 | } |
| 7549 | |
| 7550 | static int ironlake_setup_rc6(struct drm_device *dev) |
| 7551 | { |
| 7552 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7553 | |
| 7554 | if (dev_priv->renderctx == NULL) |
| 7555 | dev_priv->renderctx = intel_alloc_context_page(dev); |
| 7556 | if (!dev_priv->renderctx) |
| 7557 | return -ENOMEM; |
| 7558 | |
| 7559 | if (dev_priv->pwrctx == NULL) |
| 7560 | dev_priv->pwrctx = intel_alloc_context_page(dev); |
| 7561 | if (!dev_priv->pwrctx) { |
| 7562 | ironlake_teardown_rc6(dev); |
| 7563 | return -ENOMEM; |
| 7564 | } |
| 7565 | |
| 7566 | return 0; |
Jesse Barnes | d5bb081 | 2011-01-05 12:01:26 -0800 | [diff] [blame] | 7567 | } |
| 7568 | |
| 7569 | void ironlake_enable_rc6(struct drm_device *dev) |
| 7570 | { |
| 7571 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7572 | int ret; |
| 7573 | |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7574 | /* rc6 disabled by default due to repeated reports of hanging during |
| 7575 | * boot and resume. |
| 7576 | */ |
| 7577 | if (!i915_enable_rc6) |
| 7578 | return; |
| 7579 | |
Ben Widawsky | 2c34b85 | 2011-03-19 18:14:26 -0700 | [diff] [blame] | 7580 | mutex_lock(&dev->struct_mutex); |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7581 | ret = ironlake_setup_rc6(dev); |
Ben Widawsky | 2c34b85 | 2011-03-19 18:14:26 -0700 | [diff] [blame] | 7582 | if (ret) { |
| 7583 | mutex_unlock(&dev->struct_mutex); |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7584 | return; |
Ben Widawsky | 2c34b85 | 2011-03-19 18:14:26 -0700 | [diff] [blame] | 7585 | } |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7586 | |
Jesse Barnes | d5bb081 | 2011-01-05 12:01:26 -0800 | [diff] [blame] | 7587 | /* |
| 7588 | * GPU can automatically power down the render unit if given a page |
| 7589 | * to save state. |
| 7590 | */ |
| 7591 | ret = BEGIN_LP_RING(6); |
| 7592 | if (ret) { |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7593 | ironlake_teardown_rc6(dev); |
Ben Widawsky | 2c34b85 | 2011-03-19 18:14:26 -0700 | [diff] [blame] | 7594 | mutex_unlock(&dev->struct_mutex); |
Jesse Barnes | d5bb081 | 2011-01-05 12:01:26 -0800 | [diff] [blame] | 7595 | return; |
| 7596 | } |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7597 | |
Jesse Barnes | d5bb081 | 2011-01-05 12:01:26 -0800 | [diff] [blame] | 7598 | OUT_RING(MI_SUSPEND_FLUSH | MI_SUSPEND_FLUSH_EN); |
| 7599 | OUT_RING(MI_SET_CONTEXT); |
| 7600 | OUT_RING(dev_priv->renderctx->gtt_offset | |
| 7601 | MI_MM_SPACE_GTT | |
| 7602 | MI_SAVE_EXT_STATE_EN | |
| 7603 | MI_RESTORE_EXT_STATE_EN | |
| 7604 | MI_RESTORE_INHIBIT); |
| 7605 | OUT_RING(MI_SUSPEND_FLUSH); |
| 7606 | OUT_RING(MI_NOOP); |
| 7607 | OUT_RING(MI_FLUSH); |
| 7608 | ADVANCE_LP_RING(); |
| 7609 | |
Ben Widawsky | 4a246cf | 2011-03-19 18:14:28 -0700 | [diff] [blame] | 7610 | /* |
| 7611 | * Wait for the command parser to advance past MI_SET_CONTEXT. The HW |
| 7612 | * does an implicit flush, combined with MI_FLUSH above, it should be |
| 7613 | * safe to assume that renderctx is valid |
| 7614 | */ |
| 7615 | ret = intel_wait_ring_idle(LP_RING(dev_priv)); |
| 7616 | if (ret) { |
| 7617 | DRM_ERROR("failed to enable ironlake power power savings\n"); |
| 7618 | ironlake_teardown_rc6(dev); |
| 7619 | mutex_unlock(&dev->struct_mutex); |
| 7620 | return; |
| 7621 | } |
| 7622 | |
Jesse Barnes | d5bb081 | 2011-01-05 12:01:26 -0800 | [diff] [blame] | 7623 | I915_WRITE(PWRCTXA, dev_priv->pwrctx->gtt_offset | PWRCTX_EN); |
| 7624 | I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); |
Ben Widawsky | 2c34b85 | 2011-03-19 18:14:26 -0700 | [diff] [blame] | 7625 | mutex_unlock(&dev->struct_mutex); |
Jesse Barnes | d5bb081 | 2011-01-05 12:01:26 -0800 | [diff] [blame] | 7626 | } |
| 7627 | |
Jesse Barnes | 645c62a | 2011-05-11 09:49:31 -0700 | [diff] [blame] | 7628 | void intel_init_clock_gating(struct drm_device *dev) |
| 7629 | { |
| 7630 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7631 | |
| 7632 | dev_priv->display.init_clock_gating(dev); |
| 7633 | |
| 7634 | if (dev_priv->display.init_pch_clock_gating) |
| 7635 | dev_priv->display.init_pch_clock_gating(dev); |
| 7636 | } |
Chris Wilson | ac66808 | 2011-02-09 16:15:32 +0000 | [diff] [blame] | 7637 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7638 | /* Set up chip specific display functions */ |
| 7639 | static void intel_init_display(struct drm_device *dev) |
| 7640 | { |
| 7641 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7642 | |
| 7643 | /* We always want a DPMS function */ |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 7644 | if (HAS_PCH_SPLIT(dev)) { |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 7645 | dev_priv->display.dpms = ironlake_crtc_dpms; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 7646 | dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; |
| 7647 | } else { |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7648 | dev_priv->display.dpms = i9xx_crtc_dpms; |
Eric Anholt | f564048 | 2011-03-30 13:01:02 -0700 | [diff] [blame] | 7649 | dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set; |
| 7650 | } |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7651 | |
Adam Jackson | ee5382a | 2010-04-23 11:17:39 -0400 | [diff] [blame] | 7652 | if (I915_HAS_FBC(dev)) { |
Yuanhan Liu | 9c04f01 | 2010-12-15 15:42:32 +0800 | [diff] [blame] | 7653 | if (HAS_PCH_SPLIT(dev)) { |
Zhao Yakui | b52eb4d | 2010-06-12 14:32:27 +0800 | [diff] [blame] | 7654 | dev_priv->display.fbc_enabled = ironlake_fbc_enabled; |
| 7655 | dev_priv->display.enable_fbc = ironlake_enable_fbc; |
| 7656 | dev_priv->display.disable_fbc = ironlake_disable_fbc; |
| 7657 | } else if (IS_GM45(dev)) { |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 7658 | dev_priv->display.fbc_enabled = g4x_fbc_enabled; |
| 7659 | dev_priv->display.enable_fbc = g4x_enable_fbc; |
| 7660 | dev_priv->display.disable_fbc = g4x_disable_fbc; |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 7661 | } else if (IS_CRESTLINE(dev)) { |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7662 | dev_priv->display.fbc_enabled = i8xx_fbc_enabled; |
| 7663 | dev_priv->display.enable_fbc = i8xx_enable_fbc; |
| 7664 | dev_priv->display.disable_fbc = i8xx_disable_fbc; |
| 7665 | } |
Jesse Barnes | 74dff28 | 2009-09-14 15:39:40 -0700 | [diff] [blame] | 7666 | /* 855GM needs testing */ |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7667 | } |
| 7668 | |
| 7669 | /* Returns the core display clock speed */ |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 7670 | if (IS_I945G(dev) || (IS_G33(dev) && ! IS_PINEVIEW_M(dev))) |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7671 | dev_priv->display.get_display_clock_speed = |
| 7672 | i945_get_display_clock_speed; |
| 7673 | else if (IS_I915G(dev)) |
| 7674 | dev_priv->display.get_display_clock_speed = |
| 7675 | i915_get_display_clock_speed; |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 7676 | else if (IS_I945GM(dev) || IS_845G(dev) || IS_PINEVIEW_M(dev)) |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7677 | dev_priv->display.get_display_clock_speed = |
| 7678 | i9xx_misc_get_display_clock_speed; |
| 7679 | else if (IS_I915GM(dev)) |
| 7680 | dev_priv->display.get_display_clock_speed = |
| 7681 | i915gm_get_display_clock_speed; |
| 7682 | else if (IS_I865G(dev)) |
| 7683 | dev_priv->display.get_display_clock_speed = |
| 7684 | i865_get_display_clock_speed; |
Daniel Vetter | f0f8a9c | 2009-09-15 22:57:33 +0200 | [diff] [blame] | 7685 | else if (IS_I85X(dev)) |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7686 | dev_priv->display.get_display_clock_speed = |
| 7687 | i855_get_display_clock_speed; |
| 7688 | else /* 852, 830 */ |
| 7689 | dev_priv->display.get_display_clock_speed = |
| 7690 | i830_get_display_clock_speed; |
| 7691 | |
| 7692 | /* For FIFO watermark updates */ |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 7693 | if (HAS_PCH_SPLIT(dev)) { |
Jesse Barnes | 645c62a | 2011-05-11 09:49:31 -0700 | [diff] [blame] | 7694 | if (HAS_PCH_IBX(dev)) |
| 7695 | dev_priv->display.init_pch_clock_gating = ibx_init_clock_gating; |
| 7696 | else if (HAS_PCH_CPT(dev)) |
| 7697 | dev_priv->display.init_pch_clock_gating = cpt_init_clock_gating; |
| 7698 | |
Chris Wilson | f00a3dd | 2010-10-21 14:57:17 +0100 | [diff] [blame] | 7699 | if (IS_GEN5(dev)) { |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 7700 | if (I915_READ(MLTR_ILK) & ILK_SRLT_MASK) |
| 7701 | dev_priv->display.update_wm = ironlake_update_wm; |
| 7702 | else { |
| 7703 | DRM_DEBUG_KMS("Failed to get proper latency. " |
| 7704 | "Disable CxSR\n"); |
| 7705 | dev_priv->display.update_wm = NULL; |
| 7706 | } |
Jesse Barnes | 674cf96 | 2011-04-28 14:27:04 -0700 | [diff] [blame] | 7707 | dev_priv->display.fdi_link_train = ironlake_fdi_link_train; |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7708 | dev_priv->display.init_clock_gating = ironlake_init_clock_gating; |
Yuanhan Liu | 1398261 | 2010-12-15 15:42:31 +0800 | [diff] [blame] | 7709 | } else if (IS_GEN6(dev)) { |
| 7710 | if (SNB_READ_WM0_LATENCY()) { |
| 7711 | dev_priv->display.update_wm = sandybridge_update_wm; |
| 7712 | } else { |
| 7713 | DRM_DEBUG_KMS("Failed to read display plane latency. " |
| 7714 | "Disable CxSR\n"); |
| 7715 | dev_priv->display.update_wm = NULL; |
| 7716 | } |
Jesse Barnes | 674cf96 | 2011-04-28 14:27:04 -0700 | [diff] [blame] | 7717 | dev_priv->display.fdi_link_train = gen6_fdi_link_train; |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7718 | dev_priv->display.init_clock_gating = gen6_init_clock_gating; |
Jesse Barnes | 357555c | 2011-04-28 15:09:55 -0700 | [diff] [blame] | 7719 | } else if (IS_IVYBRIDGE(dev)) { |
| 7720 | /* FIXME: detect B0+ stepping and use auto training */ |
| 7721 | dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train; |
Jesse Barnes | fe100d4 | 2011-04-28 14:29:45 -0700 | [diff] [blame] | 7722 | if (SNB_READ_WM0_LATENCY()) { |
| 7723 | dev_priv->display.update_wm = sandybridge_update_wm; |
| 7724 | } else { |
| 7725 | DRM_DEBUG_KMS("Failed to read display plane latency. " |
| 7726 | "Disable CxSR\n"); |
| 7727 | dev_priv->display.update_wm = NULL; |
| 7728 | } |
Jesse Barnes | 28963a3 | 2011-05-11 09:42:30 -0700 | [diff] [blame] | 7729 | dev_priv->display.init_clock_gating = ivybridge_init_clock_gating; |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7730 | |
Zhenyu Wang | 7f8a856 | 2010-04-01 13:07:53 +0800 | [diff] [blame] | 7731 | } else |
| 7732 | dev_priv->display.update_wm = NULL; |
| 7733 | } else if (IS_PINEVIEW(dev)) { |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 7734 | if (!intel_get_cxsr_latency(IS_PINEVIEW_G(dev), |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 7735 | dev_priv->is_ddr3, |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 7736 | dev_priv->fsb_freq, |
| 7737 | dev_priv->mem_freq)) { |
| 7738 | DRM_INFO("failed to find known CxSR latency " |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 7739 | "(found ddr%s fsb freq %d, mem freq %d), " |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 7740 | "disabling CxSR\n", |
Li Peng | 9553426 | 2010-05-18 18:58:44 +0800 | [diff] [blame] | 7741 | (dev_priv->is_ddr3 == 1) ? "3": "2", |
Zhao Yakui | d429434 | 2010-03-22 22:45:36 +0800 | [diff] [blame] | 7742 | dev_priv->fsb_freq, dev_priv->mem_freq); |
| 7743 | /* Disable CxSR and never update its watermark again */ |
| 7744 | pineview_disable_cxsr(dev); |
| 7745 | dev_priv->display.update_wm = NULL; |
| 7746 | } else |
| 7747 | dev_priv->display.update_wm = pineview_update_wm; |
Jason Stubbs | 95e0ee9 | 2011-05-28 14:26:48 +1000 | [diff] [blame] | 7748 | dev_priv->display.init_clock_gating = gen3_init_clock_gating; |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7749 | } else if (IS_G4X(dev)) { |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7750 | dev_priv->display.update_wm = g4x_update_wm; |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7751 | dev_priv->display.init_clock_gating = g4x_init_clock_gating; |
| 7752 | } else if (IS_GEN4(dev)) { |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7753 | dev_priv->display.update_wm = i965_update_wm; |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7754 | if (IS_CRESTLINE(dev)) |
| 7755 | dev_priv->display.init_clock_gating = crestline_init_clock_gating; |
| 7756 | else if (IS_BROADWATER(dev)) |
| 7757 | dev_priv->display.init_clock_gating = broadwater_init_clock_gating; |
| 7758 | } else if (IS_GEN3(dev)) { |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7759 | dev_priv->display.update_wm = i9xx_update_wm; |
| 7760 | dev_priv->display.get_fifo_size = i9xx_get_fifo_size; |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7761 | dev_priv->display.init_clock_gating = gen3_init_clock_gating; |
| 7762 | } else if (IS_I865G(dev)) { |
| 7763 | dev_priv->display.update_wm = i830_update_wm; |
| 7764 | dev_priv->display.init_clock_gating = i85x_init_clock_gating; |
| 7765 | dev_priv->display.get_fifo_size = i830_get_fifo_size; |
Adam Jackson | 8f4695e | 2010-04-16 18:20:57 -0400 | [diff] [blame] | 7766 | } else if (IS_I85X(dev)) { |
| 7767 | dev_priv->display.update_wm = i9xx_update_wm; |
| 7768 | dev_priv->display.get_fifo_size = i85x_get_fifo_size; |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7769 | dev_priv->display.init_clock_gating = i85x_init_clock_gating; |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7770 | } else { |
Adam Jackson | 8f4695e | 2010-04-16 18:20:57 -0400 | [diff] [blame] | 7771 | dev_priv->display.update_wm = i830_update_wm; |
Jesse Barnes | 6067aae | 2011-04-28 15:04:31 -0700 | [diff] [blame] | 7772 | dev_priv->display.init_clock_gating = i830_init_clock_gating; |
Adam Jackson | 8f4695e | 2010-04-16 18:20:57 -0400 | [diff] [blame] | 7773 | if (IS_845G(dev)) |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7774 | dev_priv->display.get_fifo_size = i845_get_fifo_size; |
| 7775 | else |
| 7776 | dev_priv->display.get_fifo_size = i830_get_fifo_size; |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7777 | } |
Jesse Barnes | 8c9f3aa | 2011-06-16 09:19:13 -0700 | [diff] [blame] | 7778 | |
| 7779 | /* Default just returns -ENODEV to indicate unsupported */ |
| 7780 | dev_priv->display.queue_flip = intel_default_queue_flip; |
| 7781 | |
| 7782 | switch (INTEL_INFO(dev)->gen) { |
| 7783 | case 2: |
| 7784 | dev_priv->display.queue_flip = intel_gen2_queue_flip; |
| 7785 | break; |
| 7786 | |
| 7787 | case 3: |
| 7788 | dev_priv->display.queue_flip = intel_gen3_queue_flip; |
| 7789 | break; |
| 7790 | |
| 7791 | case 4: |
| 7792 | case 5: |
| 7793 | dev_priv->display.queue_flip = intel_gen4_queue_flip; |
| 7794 | break; |
| 7795 | |
| 7796 | case 6: |
| 7797 | dev_priv->display.queue_flip = intel_gen6_queue_flip; |
| 7798 | break; |
Jesse Barnes | 7c9017e | 2011-06-16 12:18:54 -0700 | [diff] [blame] | 7799 | case 7: |
| 7800 | dev_priv->display.queue_flip = intel_gen7_queue_flip; |
| 7801 | break; |
Jesse Barnes | 8c9f3aa | 2011-06-16 09:19:13 -0700 | [diff] [blame] | 7802 | } |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7803 | } |
| 7804 | |
Jesse Barnes | b690e96 | 2010-07-19 13:53:12 -0700 | [diff] [blame] | 7805 | /* |
| 7806 | * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, |
| 7807 | * resume, or other times. This quirk makes sure that's the case for |
| 7808 | * affected systems. |
| 7809 | */ |
| 7810 | static void quirk_pipea_force (struct drm_device *dev) |
| 7811 | { |
| 7812 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7813 | |
| 7814 | dev_priv->quirks |= QUIRK_PIPEA_FORCE; |
| 7815 | DRM_DEBUG_DRIVER("applying pipe a force quirk\n"); |
| 7816 | } |
| 7817 | |
Keith Packard | 435793d | 2011-07-12 14:56:22 -0700 | [diff] [blame] | 7818 | /* |
| 7819 | * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason |
| 7820 | */ |
| 7821 | static void quirk_ssc_force_disable(struct drm_device *dev) |
| 7822 | { |
| 7823 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7824 | dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; |
| 7825 | } |
| 7826 | |
Jesse Barnes | b690e96 | 2010-07-19 13:53:12 -0700 | [diff] [blame] | 7827 | struct intel_quirk { |
| 7828 | int device; |
| 7829 | int subsystem_vendor; |
| 7830 | int subsystem_device; |
| 7831 | void (*hook)(struct drm_device *dev); |
| 7832 | }; |
| 7833 | |
| 7834 | struct intel_quirk intel_quirks[] = { |
| 7835 | /* HP Compaq 2730p needs pipe A force quirk (LP: #291555) */ |
| 7836 | { 0x2a42, 0x103c, 0x30eb, quirk_pipea_force }, |
| 7837 | /* HP Mini needs pipe A force quirk (LP: #322104) */ |
| 7838 | { 0x27ae,0x103c, 0x361a, quirk_pipea_force }, |
| 7839 | |
| 7840 | /* Thinkpad R31 needs pipe A force quirk */ |
| 7841 | { 0x3577, 0x1014, 0x0505, quirk_pipea_force }, |
| 7842 | /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ |
| 7843 | { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, |
| 7844 | |
| 7845 | /* ThinkPad X30 needs pipe A force quirk (LP: #304614) */ |
| 7846 | { 0x3577, 0x1014, 0x0513, quirk_pipea_force }, |
| 7847 | /* ThinkPad X40 needs pipe A force quirk */ |
| 7848 | |
| 7849 | /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ |
| 7850 | { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, |
| 7851 | |
| 7852 | /* 855 & before need to leave pipe A & dpll A up */ |
| 7853 | { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
| 7854 | { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, |
Keith Packard | 435793d | 2011-07-12 14:56:22 -0700 | [diff] [blame] | 7855 | |
| 7856 | /* Lenovo U160 cannot use SSC on LVDS */ |
| 7857 | { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, |
Jesse Barnes | b690e96 | 2010-07-19 13:53:12 -0700 | [diff] [blame] | 7858 | }; |
| 7859 | |
| 7860 | static void intel_init_quirks(struct drm_device *dev) |
| 7861 | { |
| 7862 | struct pci_dev *d = dev->pdev; |
| 7863 | int i; |
| 7864 | |
| 7865 | for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { |
| 7866 | struct intel_quirk *q = &intel_quirks[i]; |
| 7867 | |
| 7868 | if (d->device == q->device && |
| 7869 | (d->subsystem_vendor == q->subsystem_vendor || |
| 7870 | q->subsystem_vendor == PCI_ANY_ID) && |
| 7871 | (d->subsystem_device == q->subsystem_device || |
| 7872 | q->subsystem_device == PCI_ANY_ID)) |
| 7873 | q->hook(dev); |
| 7874 | } |
| 7875 | } |
| 7876 | |
Jesse Barnes | 9cce37f | 2010-08-13 15:11:26 -0700 | [diff] [blame] | 7877 | /* Disable the VGA plane that we never use */ |
| 7878 | static void i915_disable_vga(struct drm_device *dev) |
| 7879 | { |
| 7880 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7881 | u8 sr1; |
| 7882 | u32 vga_reg; |
| 7883 | |
| 7884 | if (HAS_PCH_SPLIT(dev)) |
| 7885 | vga_reg = CPU_VGACNTRL; |
| 7886 | else |
| 7887 | vga_reg = VGACNTRL; |
| 7888 | |
| 7889 | vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); |
| 7890 | outb(1, VGA_SR_INDEX); |
| 7891 | sr1 = inb(VGA_SR_DATA); |
| 7892 | outb(sr1 | 1<<5, VGA_SR_DATA); |
| 7893 | vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); |
| 7894 | udelay(300); |
| 7895 | |
| 7896 | I915_WRITE(vga_reg, VGA_DISP_DISABLE); |
| 7897 | POSTING_READ(vga_reg); |
| 7898 | } |
| 7899 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 7900 | void intel_modeset_init(struct drm_device *dev) |
| 7901 | { |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7902 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 7903 | int i; |
| 7904 | |
| 7905 | drm_mode_config_init(dev); |
| 7906 | |
| 7907 | dev->mode_config.min_width = 0; |
| 7908 | dev->mode_config.min_height = 0; |
| 7909 | |
| 7910 | dev->mode_config.funcs = (void *)&intel_mode_funcs; |
| 7911 | |
Jesse Barnes | b690e96 | 2010-07-19 13:53:12 -0700 | [diff] [blame] | 7912 | intel_init_quirks(dev); |
| 7913 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7914 | intel_init_display(dev); |
| 7915 | |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 7916 | if (IS_GEN2(dev)) { |
| 7917 | dev->mode_config.max_width = 2048; |
| 7918 | dev->mode_config.max_height = 2048; |
| 7919 | } else if (IS_GEN3(dev)) { |
Keith Packard | 5e4d6fa | 2009-07-12 23:53:17 -0700 | [diff] [blame] | 7920 | dev->mode_config.max_width = 4096; |
| 7921 | dev->mode_config.max_height = 4096; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 7922 | } else { |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 7923 | dev->mode_config.max_width = 8192; |
| 7924 | dev->mode_config.max_height = 8192; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 7925 | } |
Chris Wilson | 35c3047 | 2010-12-22 14:07:12 +0000 | [diff] [blame] | 7926 | dev->mode_config.fb_base = dev->agp->base; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 7927 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 7928 | DRM_DEBUG_KMS("%d display pipe%s available.\n", |
Dave Airlie | a3524f1 | 2010-06-06 18:59:41 +1000 | [diff] [blame] | 7929 | dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 7930 | |
Dave Airlie | a3524f1 | 2010-06-06 18:59:41 +1000 | [diff] [blame] | 7931 | for (i = 0; i < dev_priv->num_pipe; i++) { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 7932 | intel_crtc_init(dev, i); |
| 7933 | } |
| 7934 | |
Jesse Barnes | 9cce37f | 2010-08-13 15:11:26 -0700 | [diff] [blame] | 7935 | /* Just disable it once at startup */ |
| 7936 | i915_disable_vga(dev); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 7937 | intel_setup_outputs(dev); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7938 | |
Jesse Barnes | 645c62a | 2011-05-11 09:49:31 -0700 | [diff] [blame] | 7939 | intel_init_clock_gating(dev); |
Jesse Barnes | 9cce37f | 2010-08-13 15:11:26 -0700 | [diff] [blame] | 7940 | |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 7941 | if (IS_IRONLAKE_M(dev)) { |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7942 | ironlake_enable_drps(dev); |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 7943 | intel_init_emon(dev); |
| 7944 | } |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7945 | |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 7946 | if (IS_GEN6(dev)) |
| 7947 | gen6_enable_rps(dev_priv); |
| 7948 | |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7949 | INIT_WORK(&dev_priv->idle_work, intel_idle_update); |
| 7950 | setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer, |
| 7951 | (unsigned long)dev); |
Chris Wilson | 2c7111d | 2011-03-29 10:40:27 +0100 | [diff] [blame] | 7952 | } |
| 7953 | |
| 7954 | void intel_modeset_gem_init(struct drm_device *dev) |
| 7955 | { |
| 7956 | if (IS_IRONLAKE_M(dev)) |
| 7957 | ironlake_enable_rc6(dev); |
Daniel Vetter | 02e792f | 2009-09-15 22:57:34 +0200 | [diff] [blame] | 7958 | |
| 7959 | intel_setup_overlay(dev); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 7960 | } |
| 7961 | |
| 7962 | void intel_modeset_cleanup(struct drm_device *dev) |
| 7963 | { |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7964 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 7965 | struct drm_crtc *crtc; |
| 7966 | struct intel_crtc *intel_crtc; |
| 7967 | |
Keith Packard | f87ea76 | 2010-10-03 19:36:26 -0700 | [diff] [blame] | 7968 | drm_kms_helper_poll_fini(dev); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7969 | mutex_lock(&dev->struct_mutex); |
| 7970 | |
Jesse Barnes | 723bfd7 | 2010-10-07 16:01:13 -0700 | [diff] [blame] | 7971 | intel_unregister_dsm_handler(); |
| 7972 | |
| 7973 | |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7974 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 7975 | /* Skip inactive CRTCs */ |
| 7976 | if (!crtc->fb) |
| 7977 | continue; |
| 7978 | |
| 7979 | intel_crtc = to_intel_crtc(crtc); |
Daniel Vetter | 3dec009 | 2010-08-20 21:40:52 +0200 | [diff] [blame] | 7980 | intel_increase_pllclock(crtc); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 7981 | } |
| 7982 | |
Jesse Barnes | e70236a | 2009-09-21 10:42:27 -0700 | [diff] [blame] | 7983 | if (dev_priv->display.disable_fbc) |
| 7984 | dev_priv->display.disable_fbc(dev); |
| 7985 | |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7986 | if (IS_IRONLAKE_M(dev)) |
| 7987 | ironlake_disable_drps(dev); |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 7988 | if (IS_GEN6(dev)) |
| 7989 | gen6_disable_rps(dev); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 7990 | |
Jesse Barnes | d5bb081 | 2011-01-05 12:01:26 -0800 | [diff] [blame] | 7991 | if (IS_IRONLAKE_M(dev)) |
| 7992 | ironlake_disable_rc6(dev); |
Chris Wilson | 0cdab21 | 2010-12-05 17:27:06 +0000 | [diff] [blame] | 7993 | |
Kristian Høgsberg | 69341a5 | 2009-11-11 12:19:17 -0500 | [diff] [blame] | 7994 | mutex_unlock(&dev->struct_mutex); |
| 7995 | |
Daniel Vetter | 6c0d9350 | 2010-08-20 18:26:46 +0200 | [diff] [blame] | 7996 | /* Disable the irq before mode object teardown, for the irq might |
| 7997 | * enqueue unpin/hotplug work. */ |
| 7998 | drm_irq_uninstall(dev); |
| 7999 | cancel_work_sync(&dev_priv->hotplug_work); |
| 8000 | |
Daniel Vetter | 3dec009 | 2010-08-20 21:40:52 +0200 | [diff] [blame] | 8001 | /* Shut off idle work before the crtcs get freed. */ |
| 8002 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 8003 | intel_crtc = to_intel_crtc(crtc); |
| 8004 | del_timer_sync(&intel_crtc->idle_timer); |
| 8005 | } |
| 8006 | del_timer_sync(&dev_priv->idle_timer); |
| 8007 | cancel_work_sync(&dev_priv->idle_work); |
| 8008 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 8009 | drm_mode_config_cleanup(dev); |
| 8010 | } |
| 8011 | |
Dave Airlie | 28d5204 | 2009-09-21 14:33:58 +1000 | [diff] [blame] | 8012 | /* |
Zhenyu Wang | f1c79df | 2010-03-30 14:39:29 +0800 | [diff] [blame] | 8013 | * Return which encoder is currently attached for connector. |
| 8014 | */ |
Chris Wilson | df0e924 | 2010-09-09 16:20:55 +0100 | [diff] [blame] | 8015 | struct drm_encoder *intel_best_encoder(struct drm_connector *connector) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 8016 | { |
Chris Wilson | df0e924 | 2010-09-09 16:20:55 +0100 | [diff] [blame] | 8017 | return &intel_attached_encoder(connector)->base; |
| 8018 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 8019 | |
Chris Wilson | df0e924 | 2010-09-09 16:20:55 +0100 | [diff] [blame] | 8020 | void intel_connector_attach_encoder(struct intel_connector *connector, |
| 8021 | struct intel_encoder *encoder) |
| 8022 | { |
| 8023 | connector->encoder = encoder; |
| 8024 | drm_mode_connector_attach_encoder(&connector->base, |
| 8025 | &encoder->base); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 8026 | } |
Dave Airlie | 28d5204 | 2009-09-21 14:33:58 +1000 | [diff] [blame] | 8027 | |
| 8028 | /* |
| 8029 | * set vga decode state - true == enable VGA decode |
| 8030 | */ |
| 8031 | int intel_modeset_vga_set_state(struct drm_device *dev, bool state) |
| 8032 | { |
| 8033 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 8034 | u16 gmch_ctrl; |
| 8035 | |
| 8036 | pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); |
| 8037 | if (state) |
| 8038 | gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; |
| 8039 | else |
| 8040 | gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; |
| 8041 | pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); |
| 8042 | return 0; |
| 8043 | } |
Chris Wilson | c4a1d9e | 2010-11-21 13:12:35 +0000 | [diff] [blame] | 8044 | |
| 8045 | #ifdef CONFIG_DEBUG_FS |
| 8046 | #include <linux/seq_file.h> |
| 8047 | |
| 8048 | struct intel_display_error_state { |
| 8049 | struct intel_cursor_error_state { |
| 8050 | u32 control; |
| 8051 | u32 position; |
| 8052 | u32 base; |
| 8053 | u32 size; |
| 8054 | } cursor[2]; |
| 8055 | |
| 8056 | struct intel_pipe_error_state { |
| 8057 | u32 conf; |
| 8058 | u32 source; |
| 8059 | |
| 8060 | u32 htotal; |
| 8061 | u32 hblank; |
| 8062 | u32 hsync; |
| 8063 | u32 vtotal; |
| 8064 | u32 vblank; |
| 8065 | u32 vsync; |
| 8066 | } pipe[2]; |
| 8067 | |
| 8068 | struct intel_plane_error_state { |
| 8069 | u32 control; |
| 8070 | u32 stride; |
| 8071 | u32 size; |
| 8072 | u32 pos; |
| 8073 | u32 addr; |
| 8074 | u32 surface; |
| 8075 | u32 tile_offset; |
| 8076 | } plane[2]; |
| 8077 | }; |
| 8078 | |
| 8079 | struct intel_display_error_state * |
| 8080 | intel_display_capture_error_state(struct drm_device *dev) |
| 8081 | { |
| 8082 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 8083 | struct intel_display_error_state *error; |
| 8084 | int i; |
| 8085 | |
| 8086 | error = kmalloc(sizeof(*error), GFP_ATOMIC); |
| 8087 | if (error == NULL) |
| 8088 | return NULL; |
| 8089 | |
| 8090 | for (i = 0; i < 2; i++) { |
| 8091 | error->cursor[i].control = I915_READ(CURCNTR(i)); |
| 8092 | error->cursor[i].position = I915_READ(CURPOS(i)); |
| 8093 | error->cursor[i].base = I915_READ(CURBASE(i)); |
| 8094 | |
| 8095 | error->plane[i].control = I915_READ(DSPCNTR(i)); |
| 8096 | error->plane[i].stride = I915_READ(DSPSTRIDE(i)); |
| 8097 | error->plane[i].size = I915_READ(DSPSIZE(i)); |
| 8098 | error->plane[i].pos= I915_READ(DSPPOS(i)); |
| 8099 | error->plane[i].addr = I915_READ(DSPADDR(i)); |
| 8100 | if (INTEL_INFO(dev)->gen >= 4) { |
| 8101 | error->plane[i].surface = I915_READ(DSPSURF(i)); |
| 8102 | error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); |
| 8103 | } |
| 8104 | |
| 8105 | error->pipe[i].conf = I915_READ(PIPECONF(i)); |
| 8106 | error->pipe[i].source = I915_READ(PIPESRC(i)); |
| 8107 | error->pipe[i].htotal = I915_READ(HTOTAL(i)); |
| 8108 | error->pipe[i].hblank = I915_READ(HBLANK(i)); |
| 8109 | error->pipe[i].hsync = I915_READ(HSYNC(i)); |
| 8110 | error->pipe[i].vtotal = I915_READ(VTOTAL(i)); |
| 8111 | error->pipe[i].vblank = I915_READ(VBLANK(i)); |
| 8112 | error->pipe[i].vsync = I915_READ(VSYNC(i)); |
| 8113 | } |
| 8114 | |
| 8115 | return error; |
| 8116 | } |
| 8117 | |
| 8118 | void |
| 8119 | intel_display_print_error_state(struct seq_file *m, |
| 8120 | struct drm_device *dev, |
| 8121 | struct intel_display_error_state *error) |
| 8122 | { |
| 8123 | int i; |
| 8124 | |
| 8125 | for (i = 0; i < 2; i++) { |
| 8126 | seq_printf(m, "Pipe [%d]:\n", i); |
| 8127 | seq_printf(m, " CONF: %08x\n", error->pipe[i].conf); |
| 8128 | seq_printf(m, " SRC: %08x\n", error->pipe[i].source); |
| 8129 | seq_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); |
| 8130 | seq_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); |
| 8131 | seq_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); |
| 8132 | seq_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); |
| 8133 | seq_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); |
| 8134 | seq_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); |
| 8135 | |
| 8136 | seq_printf(m, "Plane [%d]:\n", i); |
| 8137 | seq_printf(m, " CNTR: %08x\n", error->plane[i].control); |
| 8138 | seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride); |
| 8139 | seq_printf(m, " SIZE: %08x\n", error->plane[i].size); |
| 8140 | seq_printf(m, " POS: %08x\n", error->plane[i].pos); |
| 8141 | seq_printf(m, " ADDR: %08x\n", error->plane[i].addr); |
| 8142 | if (INTEL_INFO(dev)->gen >= 4) { |
| 8143 | seq_printf(m, " SURF: %08x\n", error->plane[i].surface); |
| 8144 | seq_printf(m, " TILEOFF: %08x\n", error->plane[i].tile_offset); |
| 8145 | } |
| 8146 | |
| 8147 | seq_printf(m, "Cursor [%d]:\n", i); |
| 8148 | seq_printf(m, " CNTR: %08x\n", error->cursor[i].control); |
| 8149 | seq_printf(m, " POS: %08x\n", error->cursor[i].position); |
| 8150 | seq_printf(m, " BASE: %08x\n", error->cursor[i].base); |
| 8151 | } |
| 8152 | } |
| 8153 | #endif |