Dave Airlie | 0d6aa60 | 2006-01-02 20:14:23 +1100 | [diff] [blame] | 1 | /* i915_irq.c -- IRQ support for the I915 -*- linux-c -*- |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | */ |
Dave Airlie | 0d6aa60 | 2006-01-02 20:14:23 +1100 | [diff] [blame] | 3 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. |
| 5 | * All Rights Reserved. |
Dave Airlie | bc54fd1 | 2005-06-23 22:46:46 +1000 | [diff] [blame] | 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 8 | * copy of this software and associated documentation files (the |
| 9 | * "Software"), to deal in the Software without restriction, including |
| 10 | * without limitation the rights to use, copy, modify, merge, publish, |
| 11 | * distribute, sub license, and/or sell copies of the Software, and to |
| 12 | * permit persons to whom the Software is furnished to do so, subject to |
| 13 | * the following conditions: |
| 14 | * |
| 15 | * The above copyright notice and this permission notice (including the |
| 16 | * next paragraph) shall be included in all copies or substantial portions |
| 17 | * of the Software. |
| 18 | * |
| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| 22 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
| 23 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 24 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 25 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 26 | * |
Dave Airlie | 0d6aa60 | 2006-01-02 20:14:23 +1100 | [diff] [blame] | 27 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 29 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 30 | |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 31 | #include <linux/sysrq.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 32 | #include <linux/slab.h> |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 33 | #include <drm/drmP.h> |
| 34 | #include <drm/i915_drm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include "i915_drv.h" |
Chris Wilson | 1c5d22f | 2009-08-25 11:15:50 +0100 | [diff] [blame] | 36 | #include "i915_trace.h" |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 37 | #include "intel_drv.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
Egbert Eich | e5868a3 | 2013-02-28 04:17:12 -0500 | [diff] [blame] | 39 | static const u32 hpd_ibx[] = { |
| 40 | [HPD_CRT] = SDE_CRT_HOTPLUG, |
| 41 | [HPD_SDVO_B] = SDE_SDVOB_HOTPLUG, |
| 42 | [HPD_PORT_B] = SDE_PORTB_HOTPLUG, |
| 43 | [HPD_PORT_C] = SDE_PORTC_HOTPLUG, |
| 44 | [HPD_PORT_D] = SDE_PORTD_HOTPLUG |
| 45 | }; |
| 46 | |
| 47 | static const u32 hpd_cpt[] = { |
| 48 | [HPD_CRT] = SDE_CRT_HOTPLUG_CPT, |
Daniel Vetter | 73c352a | 2013-03-26 22:38:43 +0100 | [diff] [blame] | 49 | [HPD_SDVO_B] = SDE_SDVOB_HOTPLUG_CPT, |
Egbert Eich | e5868a3 | 2013-02-28 04:17:12 -0500 | [diff] [blame] | 50 | [HPD_PORT_B] = SDE_PORTB_HOTPLUG_CPT, |
| 51 | [HPD_PORT_C] = SDE_PORTC_HOTPLUG_CPT, |
| 52 | [HPD_PORT_D] = SDE_PORTD_HOTPLUG_CPT |
| 53 | }; |
| 54 | |
| 55 | static const u32 hpd_mask_i915[] = { |
| 56 | [HPD_CRT] = CRT_HOTPLUG_INT_EN, |
| 57 | [HPD_SDVO_B] = SDVOB_HOTPLUG_INT_EN, |
| 58 | [HPD_SDVO_C] = SDVOC_HOTPLUG_INT_EN, |
| 59 | [HPD_PORT_B] = PORTB_HOTPLUG_INT_EN, |
| 60 | [HPD_PORT_C] = PORTC_HOTPLUG_INT_EN, |
| 61 | [HPD_PORT_D] = PORTD_HOTPLUG_INT_EN |
| 62 | }; |
| 63 | |
| 64 | static const u32 hpd_status_gen4[] = { |
| 65 | [HPD_CRT] = CRT_HOTPLUG_INT_STATUS, |
| 66 | [HPD_SDVO_B] = SDVOB_HOTPLUG_INT_STATUS_G4X, |
| 67 | [HPD_SDVO_C] = SDVOC_HOTPLUG_INT_STATUS_G4X, |
| 68 | [HPD_PORT_B] = PORTB_HOTPLUG_INT_STATUS, |
| 69 | [HPD_PORT_C] = PORTC_HOTPLUG_INT_STATUS, |
| 70 | [HPD_PORT_D] = PORTD_HOTPLUG_INT_STATUS |
| 71 | }; |
| 72 | |
| 73 | static const u32 hpd_status_i965[] = { |
| 74 | [HPD_CRT] = CRT_HOTPLUG_INT_STATUS, |
| 75 | [HPD_SDVO_B] = SDVOB_HOTPLUG_INT_STATUS_I965, |
| 76 | [HPD_SDVO_C] = SDVOC_HOTPLUG_INT_STATUS_I965, |
| 77 | [HPD_PORT_B] = PORTB_HOTPLUG_INT_STATUS, |
| 78 | [HPD_PORT_C] = PORTC_HOTPLUG_INT_STATUS, |
| 79 | [HPD_PORT_D] = PORTD_HOTPLUG_INT_STATUS |
| 80 | }; |
| 81 | |
| 82 | static const u32 hpd_status_i915[] = { /* i915 and valleyview are the same */ |
| 83 | [HPD_CRT] = CRT_HOTPLUG_INT_STATUS, |
| 84 | [HPD_SDVO_B] = SDVOB_HOTPLUG_INT_STATUS_I915, |
| 85 | [HPD_SDVO_C] = SDVOC_HOTPLUG_INT_STATUS_I915, |
| 86 | [HPD_PORT_B] = PORTB_HOTPLUG_INT_STATUS, |
| 87 | [HPD_PORT_C] = PORTC_HOTPLUG_INT_STATUS, |
| 88 | [HPD_PORT_D] = PORTD_HOTPLUG_INT_STATUS |
| 89 | }; |
| 90 | |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 91 | static void ibx_hpd_irq_setup(struct drm_device *dev); |
| 92 | static void i915_hpd_irq_setup(struct drm_device *dev); |
Egbert Eich | e5868a3 | 2013-02-28 04:17:12 -0500 | [diff] [blame] | 93 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 94 | /* For display hotplug interrupt */ |
Chris Wilson | 995b676 | 2010-08-20 13:23:26 +0100 | [diff] [blame] | 95 | static void |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 96 | ironlake_enable_display_irq(drm_i915_private_t *dev_priv, u32 mask) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 97 | { |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 98 | if ((dev_priv->irq_mask & mask) != 0) { |
| 99 | dev_priv->irq_mask &= ~mask; |
| 100 | I915_WRITE(DEIMR, dev_priv->irq_mask); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 101 | POSTING_READ(DEIMR); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 102 | } |
| 103 | } |
| 104 | |
Paulo Zanoni | 0ff9800 | 2013-02-22 17:05:31 -0300 | [diff] [blame] | 105 | static void |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 106 | ironlake_disable_display_irq(drm_i915_private_t *dev_priv, u32 mask) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 107 | { |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 108 | if ((dev_priv->irq_mask & mask) != mask) { |
| 109 | dev_priv->irq_mask |= mask; |
| 110 | I915_WRITE(DEIMR, dev_priv->irq_mask); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 111 | POSTING_READ(DEIMR); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 112 | } |
| 113 | } |
| 114 | |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 115 | static bool ivb_can_enable_err_int(struct drm_device *dev) |
| 116 | { |
| 117 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 118 | struct intel_crtc *crtc; |
| 119 | enum pipe pipe; |
| 120 | |
| 121 | for_each_pipe(pipe) { |
| 122 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
| 123 | |
| 124 | if (crtc->cpu_fifo_underrun_disabled) |
| 125 | return false; |
| 126 | } |
| 127 | |
| 128 | return true; |
| 129 | } |
| 130 | |
| 131 | static bool cpt_can_enable_serr_int(struct drm_device *dev) |
| 132 | { |
| 133 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 134 | enum pipe pipe; |
| 135 | struct intel_crtc *crtc; |
| 136 | |
| 137 | for_each_pipe(pipe) { |
| 138 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
| 139 | |
| 140 | if (crtc->pch_fifo_underrun_disabled) |
| 141 | return false; |
| 142 | } |
| 143 | |
| 144 | return true; |
| 145 | } |
| 146 | |
| 147 | static void ironlake_set_fifo_underrun_reporting(struct drm_device *dev, |
| 148 | enum pipe pipe, bool enable) |
| 149 | { |
| 150 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 151 | uint32_t bit = (pipe == PIPE_A) ? DE_PIPEA_FIFO_UNDERRUN : |
| 152 | DE_PIPEB_FIFO_UNDERRUN; |
| 153 | |
| 154 | if (enable) |
| 155 | ironlake_enable_display_irq(dev_priv, bit); |
| 156 | else |
| 157 | ironlake_disable_display_irq(dev_priv, bit); |
| 158 | } |
| 159 | |
| 160 | static void ivybridge_set_fifo_underrun_reporting(struct drm_device *dev, |
| 161 | bool enable) |
| 162 | { |
| 163 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 164 | |
| 165 | if (enable) { |
| 166 | if (!ivb_can_enable_err_int(dev)) |
| 167 | return; |
| 168 | |
| 169 | I915_WRITE(GEN7_ERR_INT, ERR_INT_FIFO_UNDERRUN_A | |
| 170 | ERR_INT_FIFO_UNDERRUN_B | |
| 171 | ERR_INT_FIFO_UNDERRUN_C); |
| 172 | |
| 173 | ironlake_enable_display_irq(dev_priv, DE_ERR_INT_IVB); |
| 174 | } else { |
| 175 | ironlake_disable_display_irq(dev_priv, DE_ERR_INT_IVB); |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | static void ibx_set_fifo_underrun_reporting(struct intel_crtc *crtc, |
| 180 | bool enable) |
| 181 | { |
| 182 | struct drm_device *dev = crtc->base.dev; |
| 183 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 184 | uint32_t bit = (crtc->pipe == PIPE_A) ? SDE_TRANSA_FIFO_UNDER : |
| 185 | SDE_TRANSB_FIFO_UNDER; |
| 186 | |
| 187 | if (enable) |
| 188 | I915_WRITE(SDEIMR, I915_READ(SDEIMR) & ~bit); |
| 189 | else |
| 190 | I915_WRITE(SDEIMR, I915_READ(SDEIMR) | bit); |
| 191 | |
| 192 | POSTING_READ(SDEIMR); |
| 193 | } |
| 194 | |
| 195 | static void cpt_set_fifo_underrun_reporting(struct drm_device *dev, |
| 196 | enum transcoder pch_transcoder, |
| 197 | bool enable) |
| 198 | { |
| 199 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 200 | |
| 201 | if (enable) { |
| 202 | if (!cpt_can_enable_serr_int(dev)) |
| 203 | return; |
| 204 | |
| 205 | I915_WRITE(SERR_INT, SERR_INT_TRANS_A_FIFO_UNDERRUN | |
| 206 | SERR_INT_TRANS_B_FIFO_UNDERRUN | |
| 207 | SERR_INT_TRANS_C_FIFO_UNDERRUN); |
| 208 | |
| 209 | I915_WRITE(SDEIMR, I915_READ(SDEIMR) & ~SDE_ERROR_CPT); |
| 210 | } else { |
| 211 | I915_WRITE(SDEIMR, I915_READ(SDEIMR) | SDE_ERROR_CPT); |
| 212 | } |
| 213 | |
| 214 | POSTING_READ(SDEIMR); |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * intel_set_cpu_fifo_underrun_reporting - enable/disable FIFO underrun messages |
| 219 | * @dev: drm device |
| 220 | * @pipe: pipe |
| 221 | * @enable: true if we want to report FIFO underrun errors, false otherwise |
| 222 | * |
| 223 | * This function makes us disable or enable CPU fifo underruns for a specific |
| 224 | * pipe. Notice that on some Gens (e.g. IVB, HSW), disabling FIFO underrun |
| 225 | * reporting for one pipe may also disable all the other CPU error interruts for |
| 226 | * the other pipes, due to the fact that there's just one interrupt mask/enable |
| 227 | * bit for all the pipes. |
| 228 | * |
| 229 | * Returns the previous state of underrun reporting. |
| 230 | */ |
| 231 | bool intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev, |
| 232 | enum pipe pipe, bool enable) |
| 233 | { |
| 234 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 235 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
| 236 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 237 | unsigned long flags; |
| 238 | bool ret; |
| 239 | |
| 240 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
| 241 | |
| 242 | ret = !intel_crtc->cpu_fifo_underrun_disabled; |
| 243 | |
| 244 | if (enable == ret) |
| 245 | goto done; |
| 246 | |
| 247 | intel_crtc->cpu_fifo_underrun_disabled = !enable; |
| 248 | |
| 249 | if (IS_GEN5(dev) || IS_GEN6(dev)) |
| 250 | ironlake_set_fifo_underrun_reporting(dev, pipe, enable); |
| 251 | else if (IS_GEN7(dev)) |
| 252 | ivybridge_set_fifo_underrun_reporting(dev, enable); |
| 253 | |
| 254 | done: |
| 255 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
| 256 | return ret; |
| 257 | } |
| 258 | |
| 259 | /** |
| 260 | * intel_set_pch_fifo_underrun_reporting - enable/disable FIFO underrun messages |
| 261 | * @dev: drm device |
| 262 | * @pch_transcoder: the PCH transcoder (same as pipe on IVB and older) |
| 263 | * @enable: true if we want to report FIFO underrun errors, false otherwise |
| 264 | * |
| 265 | * This function makes us disable or enable PCH fifo underruns for a specific |
| 266 | * PCH transcoder. Notice that on some PCHs (e.g. CPT/PPT), disabling FIFO |
| 267 | * underrun reporting for one transcoder may also disable all the other PCH |
| 268 | * error interruts for the other transcoders, due to the fact that there's just |
| 269 | * one interrupt mask/enable bit for all the transcoders. |
| 270 | * |
| 271 | * Returns the previous state of underrun reporting. |
| 272 | */ |
| 273 | bool intel_set_pch_fifo_underrun_reporting(struct drm_device *dev, |
| 274 | enum transcoder pch_transcoder, |
| 275 | bool enable) |
| 276 | { |
| 277 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 278 | enum pipe p; |
| 279 | struct drm_crtc *crtc; |
| 280 | struct intel_crtc *intel_crtc; |
| 281 | unsigned long flags; |
| 282 | bool ret; |
| 283 | |
| 284 | if (HAS_PCH_LPT(dev)) { |
| 285 | crtc = NULL; |
| 286 | for_each_pipe(p) { |
| 287 | struct drm_crtc *c = dev_priv->pipe_to_crtc_mapping[p]; |
| 288 | if (intel_pipe_has_type(c, INTEL_OUTPUT_ANALOG)) { |
| 289 | crtc = c; |
| 290 | break; |
| 291 | } |
| 292 | } |
| 293 | if (!crtc) { |
| 294 | DRM_ERROR("PCH FIFO underrun, but no CRTC using the PCH found\n"); |
| 295 | return false; |
| 296 | } |
| 297 | } else { |
| 298 | crtc = dev_priv->pipe_to_crtc_mapping[pch_transcoder]; |
| 299 | } |
| 300 | intel_crtc = to_intel_crtc(crtc); |
| 301 | |
| 302 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
| 303 | |
| 304 | ret = !intel_crtc->pch_fifo_underrun_disabled; |
| 305 | |
| 306 | if (enable == ret) |
| 307 | goto done; |
| 308 | |
| 309 | intel_crtc->pch_fifo_underrun_disabled = !enable; |
| 310 | |
| 311 | if (HAS_PCH_IBX(dev)) |
| 312 | ibx_set_fifo_underrun_reporting(intel_crtc, enable); |
| 313 | else |
| 314 | cpt_set_fifo_underrun_reporting(dev, pch_transcoder, enable); |
| 315 | |
| 316 | done: |
| 317 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
| 318 | return ret; |
| 319 | } |
| 320 | |
| 321 | |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 322 | void |
| 323 | i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask) |
| 324 | { |
Ville Syrjälä | 46c06a3 | 2013-02-20 21:16:18 +0200 | [diff] [blame] | 325 | u32 reg = PIPESTAT(pipe); |
| 326 | u32 pipestat = I915_READ(reg) & 0x7fff0000; |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 327 | |
Ville Syrjälä | 46c06a3 | 2013-02-20 21:16:18 +0200 | [diff] [blame] | 328 | if ((pipestat & mask) == mask) |
| 329 | return; |
| 330 | |
| 331 | /* Enable the interrupt, clear any pending status */ |
| 332 | pipestat |= mask | (mask >> 16); |
| 333 | I915_WRITE(reg, pipestat); |
| 334 | POSTING_READ(reg); |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 335 | } |
| 336 | |
| 337 | void |
| 338 | i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask) |
| 339 | { |
Ville Syrjälä | 46c06a3 | 2013-02-20 21:16:18 +0200 | [diff] [blame] | 340 | u32 reg = PIPESTAT(pipe); |
| 341 | u32 pipestat = I915_READ(reg) & 0x7fff0000; |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 342 | |
Ville Syrjälä | 46c06a3 | 2013-02-20 21:16:18 +0200 | [diff] [blame] | 343 | if ((pipestat & mask) == 0) |
| 344 | return; |
| 345 | |
| 346 | pipestat &= ~mask; |
| 347 | I915_WRITE(reg, pipestat); |
| 348 | POSTING_READ(reg); |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 349 | } |
| 350 | |
=?utf-8?q?Michel_D=C3=A4nzer?= | a6b54f3 | 2006-10-24 23:37:43 +1000 | [diff] [blame] | 351 | /** |
Jani Nikula | f49e38d | 2013-04-29 13:02:54 +0300 | [diff] [blame] | 352 | * i915_enable_asle_pipestat - enable ASLE pipestat for OpRegion |
Zhao Yakui | 01c6688 | 2009-10-28 05:10:00 +0000 | [diff] [blame] | 353 | */ |
Jani Nikula | f49e38d | 2013-04-29 13:02:54 +0300 | [diff] [blame] | 354 | static void i915_enable_asle_pipestat(struct drm_device *dev) |
Zhao Yakui | 01c6688 | 2009-10-28 05:10:00 +0000 | [diff] [blame] | 355 | { |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 356 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 357 | unsigned long irqflags; |
| 358 | |
Jani Nikula | f49e38d | 2013-04-29 13:02:54 +0300 | [diff] [blame] | 359 | if (!dev_priv->opregion.asle || !IS_MOBILE(dev)) |
| 360 | return; |
| 361 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 362 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Zhao Yakui | 01c6688 | 2009-10-28 05:10:00 +0000 | [diff] [blame] | 363 | |
Jani Nikula | f898780 | 2013-04-29 13:02:53 +0300 | [diff] [blame] | 364 | i915_enable_pipestat(dev_priv, 1, PIPE_LEGACY_BLC_EVENT_ENABLE); |
| 365 | if (INTEL_INFO(dev)->gen >= 4) |
| 366 | i915_enable_pipestat(dev_priv, 0, PIPE_LEGACY_BLC_EVENT_ENABLE); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 367 | |
| 368 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
Zhao Yakui | 01c6688 | 2009-10-28 05:10:00 +0000 | [diff] [blame] | 369 | } |
| 370 | |
| 371 | /** |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 372 | * i915_pipe_enabled - check if a pipe is enabled |
| 373 | * @dev: DRM device |
| 374 | * @pipe: pipe to check |
| 375 | * |
| 376 | * Reading certain registers when the pipe is disabled can hang the chip. |
| 377 | * Use this routine to make sure the PLL is running and the pipe is active |
| 378 | * before reading such registers if unsure. |
| 379 | */ |
| 380 | static int |
| 381 | i915_pipe_enabled(struct drm_device *dev, int pipe) |
| 382 | { |
| 383 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Paulo Zanoni | 702e7a5 | 2012-10-23 18:29:59 -0200 | [diff] [blame] | 384 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
| 385 | pipe); |
| 386 | |
Paulo Zanoni | 71f8ba6 | 2013-05-03 12:15:39 -0300 | [diff] [blame] | 387 | if (!intel_display_power_enabled(dev, |
| 388 | POWER_DOMAIN_TRANSCODER(cpu_transcoder))) |
| 389 | return false; |
| 390 | |
Paulo Zanoni | 702e7a5 | 2012-10-23 18:29:59 -0200 | [diff] [blame] | 391 | return I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_ENABLE; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 392 | } |
| 393 | |
Keith Packard | 42f52ef | 2008-10-18 19:39:29 -0700 | [diff] [blame] | 394 | /* Called from drm generic code, passed a 'crtc', which |
| 395 | * we use as a pipe index |
| 396 | */ |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 397 | static u32 i915_get_vblank_counter(struct drm_device *dev, int pipe) |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 398 | { |
| 399 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 400 | unsigned long high_frame; |
| 401 | unsigned long low_frame; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 402 | u32 high1, high2, low; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 403 | |
| 404 | if (!i915_pipe_enabled(dev, pipe)) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 405 | DRM_DEBUG_DRIVER("trying to get vblank count for disabled " |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 406 | "pipe %c\n", pipe_name(pipe)); |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 407 | return 0; |
| 408 | } |
| 409 | |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 410 | high_frame = PIPEFRAME(pipe); |
| 411 | low_frame = PIPEFRAMEPIXEL(pipe); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 412 | |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 413 | /* |
| 414 | * High & low register fields aren't synchronized, so make sure |
| 415 | * we get a low value that's stable across two reads of the high |
| 416 | * register. |
| 417 | */ |
| 418 | do { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 419 | high1 = I915_READ(high_frame) & PIPE_FRAME_HIGH_MASK; |
| 420 | low = I915_READ(low_frame) & PIPE_FRAME_LOW_MASK; |
| 421 | high2 = I915_READ(high_frame) & PIPE_FRAME_HIGH_MASK; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 422 | } while (high1 != high2); |
| 423 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 424 | high1 >>= PIPE_FRAME_HIGH_SHIFT; |
| 425 | low >>= PIPE_FRAME_LOW_SHIFT; |
| 426 | return (high1 << 8) | low; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 427 | } |
| 428 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 429 | static u32 gm45_get_vblank_counter(struct drm_device *dev, int pipe) |
Jesse Barnes | 9880b7a | 2009-02-06 10:22:41 -0800 | [diff] [blame] | 430 | { |
| 431 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 432 | int reg = PIPE_FRMCOUNT_GM45(pipe); |
Jesse Barnes | 9880b7a | 2009-02-06 10:22:41 -0800 | [diff] [blame] | 433 | |
| 434 | if (!i915_pipe_enabled(dev, pipe)) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 435 | DRM_DEBUG_DRIVER("trying to get vblank count for disabled " |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 436 | "pipe %c\n", pipe_name(pipe)); |
Jesse Barnes | 9880b7a | 2009-02-06 10:22:41 -0800 | [diff] [blame] | 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | return I915_READ(reg); |
| 441 | } |
| 442 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 443 | static int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe, |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 444 | int *vpos, int *hpos) |
| 445 | { |
| 446 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 447 | u32 vbl = 0, position = 0; |
| 448 | int vbl_start, vbl_end, htotal, vtotal; |
| 449 | bool in_vbl = true; |
| 450 | int ret = 0; |
Paulo Zanoni | fe2b8f9 | 2012-10-23 18:30:02 -0200 | [diff] [blame] | 451 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
| 452 | pipe); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 453 | |
| 454 | if (!i915_pipe_enabled(dev, pipe)) { |
| 455 | DRM_DEBUG_DRIVER("trying to get scanoutpos for disabled " |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 456 | "pipe %c\n", pipe_name(pipe)); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 457 | return 0; |
| 458 | } |
| 459 | |
| 460 | /* Get vtotal. */ |
Paulo Zanoni | fe2b8f9 | 2012-10-23 18:30:02 -0200 | [diff] [blame] | 461 | vtotal = 1 + ((I915_READ(VTOTAL(cpu_transcoder)) >> 16) & 0x1fff); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 462 | |
| 463 | if (INTEL_INFO(dev)->gen >= 4) { |
| 464 | /* No obvious pixelcount register. Only query vertical |
| 465 | * scanout position from Display scan line register. |
| 466 | */ |
| 467 | position = I915_READ(PIPEDSL(pipe)); |
| 468 | |
| 469 | /* Decode into vertical scanout position. Don't have |
| 470 | * horizontal scanout position. |
| 471 | */ |
| 472 | *vpos = position & 0x1fff; |
| 473 | *hpos = 0; |
| 474 | } else { |
| 475 | /* Have access to pixelcount since start of frame. |
| 476 | * We can split this into vertical and horizontal |
| 477 | * scanout position. |
| 478 | */ |
| 479 | position = (I915_READ(PIPEFRAMEPIXEL(pipe)) & PIPE_PIXEL_MASK) >> PIPE_PIXEL_SHIFT; |
| 480 | |
Paulo Zanoni | fe2b8f9 | 2012-10-23 18:30:02 -0200 | [diff] [blame] | 481 | htotal = 1 + ((I915_READ(HTOTAL(cpu_transcoder)) >> 16) & 0x1fff); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 482 | *vpos = position / htotal; |
| 483 | *hpos = position - (*vpos * htotal); |
| 484 | } |
| 485 | |
| 486 | /* Query vblank area. */ |
Paulo Zanoni | fe2b8f9 | 2012-10-23 18:30:02 -0200 | [diff] [blame] | 487 | vbl = I915_READ(VBLANK(cpu_transcoder)); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 488 | |
| 489 | /* Test position against vblank region. */ |
| 490 | vbl_start = vbl & 0x1fff; |
| 491 | vbl_end = (vbl >> 16) & 0x1fff; |
| 492 | |
| 493 | if ((*vpos < vbl_start) || (*vpos > vbl_end)) |
| 494 | in_vbl = false; |
| 495 | |
| 496 | /* Inside "upper part" of vblank area? Apply corrective offset: */ |
| 497 | if (in_vbl && (*vpos >= vbl_start)) |
| 498 | *vpos = *vpos - vtotal; |
| 499 | |
| 500 | /* Readouts valid? */ |
| 501 | if (vbl > 0) |
| 502 | ret |= DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE; |
| 503 | |
| 504 | /* In vblank? */ |
| 505 | if (in_vbl) |
| 506 | ret |= DRM_SCANOUTPOS_INVBL; |
| 507 | |
| 508 | return ret; |
| 509 | } |
| 510 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 511 | static int i915_get_vblank_timestamp(struct drm_device *dev, int pipe, |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 512 | int *max_error, |
| 513 | struct timeval *vblank_time, |
| 514 | unsigned flags) |
| 515 | { |
Chris Wilson | 4041b85 | 2011-01-22 10:07:56 +0000 | [diff] [blame] | 516 | struct drm_crtc *crtc; |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 517 | |
Ben Widawsky | 7eb552a | 2013-03-13 14:05:41 -0700 | [diff] [blame] | 518 | if (pipe < 0 || pipe >= INTEL_INFO(dev)->num_pipes) { |
Chris Wilson | 4041b85 | 2011-01-22 10:07:56 +0000 | [diff] [blame] | 519 | DRM_ERROR("Invalid crtc %d\n", pipe); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 520 | return -EINVAL; |
| 521 | } |
| 522 | |
| 523 | /* Get drm_crtc to timestamp: */ |
Chris Wilson | 4041b85 | 2011-01-22 10:07:56 +0000 | [diff] [blame] | 524 | crtc = intel_get_crtc_for_pipe(dev, pipe); |
| 525 | if (crtc == NULL) { |
| 526 | DRM_ERROR("Invalid crtc %d\n", pipe); |
| 527 | return -EINVAL; |
| 528 | } |
| 529 | |
| 530 | if (!crtc->enabled) { |
| 531 | DRM_DEBUG_KMS("crtc %d is disabled\n", pipe); |
| 532 | return -EBUSY; |
| 533 | } |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 534 | |
| 535 | /* Helper routine in DRM core does all the work: */ |
Chris Wilson | 4041b85 | 2011-01-22 10:07:56 +0000 | [diff] [blame] | 536 | return drm_calc_vbltimestamp_from_scanoutpos(dev, pipe, max_error, |
| 537 | vblank_time, flags, |
| 538 | crtc); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 539 | } |
| 540 | |
Egbert Eich | 321a1b3 | 2013-04-11 16:00:26 +0200 | [diff] [blame] | 541 | static int intel_hpd_irq_event(struct drm_device *dev, struct drm_connector *connector) |
| 542 | { |
| 543 | enum drm_connector_status old_status; |
| 544 | |
| 545 | WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); |
| 546 | old_status = connector->status; |
| 547 | |
| 548 | connector->status = connector->funcs->detect(connector, false); |
| 549 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n", |
| 550 | connector->base.id, |
| 551 | drm_get_connector_name(connector), |
| 552 | old_status, connector->status); |
| 553 | return (old_status != connector->status); |
| 554 | } |
| 555 | |
Jesse Barnes | 5ca5828 | 2009-03-31 14:11:15 -0700 | [diff] [blame] | 556 | /* |
| 557 | * Handle hotplug events outside the interrupt handler proper. |
| 558 | */ |
Egbert Eich | ac4c16c | 2013-04-16 13:36:58 +0200 | [diff] [blame] | 559 | #define I915_REENABLE_HOTPLUG_DELAY (2*60*1000) |
| 560 | |
Jesse Barnes | 5ca5828 | 2009-03-31 14:11:15 -0700 | [diff] [blame] | 561 | static void i915_hotplug_work_func(struct work_struct *work) |
| 562 | { |
| 563 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, |
| 564 | hotplug_work); |
| 565 | struct drm_device *dev = dev_priv->dev; |
Keith Packard | c31c4ba | 2009-05-06 11:48:58 -0700 | [diff] [blame] | 566 | struct drm_mode_config *mode_config = &dev->mode_config; |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 567 | struct intel_connector *intel_connector; |
| 568 | struct intel_encoder *intel_encoder; |
| 569 | struct drm_connector *connector; |
| 570 | unsigned long irqflags; |
| 571 | bool hpd_disabled = false; |
Egbert Eich | 321a1b3 | 2013-04-11 16:00:26 +0200 | [diff] [blame] | 572 | bool changed = false; |
Egbert Eich | 142e239 | 2013-04-11 15:57:57 +0200 | [diff] [blame] | 573 | u32 hpd_event_bits; |
Jesse Barnes | 5ca5828 | 2009-03-31 14:11:15 -0700 | [diff] [blame] | 574 | |
Daniel Vetter | 52d7ece | 2012-12-01 21:03:22 +0100 | [diff] [blame] | 575 | /* HPD irq before everything is fully set up. */ |
| 576 | if (!dev_priv->enable_hotplug_processing) |
| 577 | return; |
| 578 | |
Keith Packard | a65e34c | 2011-07-25 10:04:56 -0700 | [diff] [blame] | 579 | mutex_lock(&mode_config->mutex); |
Jesse Barnes | e67189ab | 2011-02-11 14:44:51 -0800 | [diff] [blame] | 580 | DRM_DEBUG_KMS("running encoder hotplug functions\n"); |
| 581 | |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 582 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Egbert Eich | 142e239 | 2013-04-11 15:57:57 +0200 | [diff] [blame] | 583 | |
| 584 | hpd_event_bits = dev_priv->hpd_event_bits; |
| 585 | dev_priv->hpd_event_bits = 0; |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 586 | list_for_each_entry(connector, &mode_config->connector_list, head) { |
| 587 | intel_connector = to_intel_connector(connector); |
| 588 | intel_encoder = intel_connector->encoder; |
| 589 | if (intel_encoder->hpd_pin > HPD_NONE && |
| 590 | dev_priv->hpd_stats[intel_encoder->hpd_pin].hpd_mark == HPD_MARK_DISABLED && |
| 591 | connector->polled == DRM_CONNECTOR_POLL_HPD) { |
| 592 | DRM_INFO("HPD interrupt storm detected on connector %s: " |
| 593 | "switching from hotplug detection to polling\n", |
| 594 | drm_get_connector_name(connector)); |
| 595 | dev_priv->hpd_stats[intel_encoder->hpd_pin].hpd_mark = HPD_DISABLED; |
| 596 | connector->polled = DRM_CONNECTOR_POLL_CONNECT |
| 597 | | DRM_CONNECTOR_POLL_DISCONNECT; |
| 598 | hpd_disabled = true; |
| 599 | } |
Egbert Eich | 142e239 | 2013-04-11 15:57:57 +0200 | [diff] [blame] | 600 | if (hpd_event_bits & (1 << intel_encoder->hpd_pin)) { |
| 601 | DRM_DEBUG_KMS("Connector %s (pin %i) received hotplug event.\n", |
| 602 | drm_get_connector_name(connector), intel_encoder->hpd_pin); |
| 603 | } |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 604 | } |
| 605 | /* if there were no outputs to poll, poll was disabled, |
| 606 | * therefore make sure it's enabled when disabling HPD on |
| 607 | * some connectors */ |
Egbert Eich | ac4c16c | 2013-04-16 13:36:58 +0200 | [diff] [blame] | 608 | if (hpd_disabled) { |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 609 | drm_kms_helper_poll_enable(dev); |
Egbert Eich | ac4c16c | 2013-04-16 13:36:58 +0200 | [diff] [blame] | 610 | mod_timer(&dev_priv->hotplug_reenable_timer, |
| 611 | jiffies + msecs_to_jiffies(I915_REENABLE_HOTPLUG_DELAY)); |
| 612 | } |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 613 | |
| 614 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 615 | |
Egbert Eich | 321a1b3 | 2013-04-11 16:00:26 +0200 | [diff] [blame] | 616 | list_for_each_entry(connector, &mode_config->connector_list, head) { |
| 617 | intel_connector = to_intel_connector(connector); |
| 618 | intel_encoder = intel_connector->encoder; |
| 619 | if (hpd_event_bits & (1 << intel_encoder->hpd_pin)) { |
| 620 | if (intel_encoder->hot_plug) |
| 621 | intel_encoder->hot_plug(intel_encoder); |
| 622 | if (intel_hpd_irq_event(dev, connector)) |
| 623 | changed = true; |
| 624 | } |
| 625 | } |
Keith Packard | 40ee338 | 2011-07-28 15:31:19 -0700 | [diff] [blame] | 626 | mutex_unlock(&mode_config->mutex); |
| 627 | |
Egbert Eich | 321a1b3 | 2013-04-11 16:00:26 +0200 | [diff] [blame] | 628 | if (changed) |
| 629 | drm_kms_helper_hotplug_event(dev); |
Jesse Barnes | 5ca5828 | 2009-03-31 14:11:15 -0700 | [diff] [blame] | 630 | } |
| 631 | |
Daniel Vetter | 73edd18f | 2012-08-08 23:35:37 +0200 | [diff] [blame] | 632 | static void ironlake_handle_rps_change(struct drm_device *dev) |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 633 | { |
| 634 | drm_i915_private_t *dev_priv = dev->dev_private; |
Matthew Garrett | b5b72e8 | 2010-02-02 18:30:47 +0000 | [diff] [blame] | 635 | u32 busy_up, busy_down, max_avg, min_avg; |
Daniel Vetter | 9270388 | 2012-08-09 16:46:01 +0200 | [diff] [blame] | 636 | u8 new_delay; |
| 637 | unsigned long flags; |
| 638 | |
| 639 | spin_lock_irqsave(&mchdev_lock, flags); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 640 | |
Daniel Vetter | 73edd18f | 2012-08-08 23:35:37 +0200 | [diff] [blame] | 641 | I915_WRITE16(MEMINTRSTS, I915_READ(MEMINTRSTS)); |
| 642 | |
Daniel Vetter | 20e4d40 | 2012-08-08 23:35:39 +0200 | [diff] [blame] | 643 | new_delay = dev_priv->ips.cur_delay; |
Daniel Vetter | 9270388 | 2012-08-09 16:46:01 +0200 | [diff] [blame] | 644 | |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 645 | I915_WRITE16(MEMINTRSTS, MEMINT_EVAL_CHG); |
Matthew Garrett | b5b72e8 | 2010-02-02 18:30:47 +0000 | [diff] [blame] | 646 | busy_up = I915_READ(RCPREVBSYTUPAVG); |
| 647 | busy_down = I915_READ(RCPREVBSYTDNAVG); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 648 | max_avg = I915_READ(RCBMAXAVG); |
| 649 | min_avg = I915_READ(RCBMINAVG); |
| 650 | |
| 651 | /* Handle RCS change request from hw */ |
Matthew Garrett | b5b72e8 | 2010-02-02 18:30:47 +0000 | [diff] [blame] | 652 | if (busy_up > max_avg) { |
Daniel Vetter | 20e4d40 | 2012-08-08 23:35:39 +0200 | [diff] [blame] | 653 | if (dev_priv->ips.cur_delay != dev_priv->ips.max_delay) |
| 654 | new_delay = dev_priv->ips.cur_delay - 1; |
| 655 | if (new_delay < dev_priv->ips.max_delay) |
| 656 | new_delay = dev_priv->ips.max_delay; |
Matthew Garrett | b5b72e8 | 2010-02-02 18:30:47 +0000 | [diff] [blame] | 657 | } else if (busy_down < min_avg) { |
Daniel Vetter | 20e4d40 | 2012-08-08 23:35:39 +0200 | [diff] [blame] | 658 | if (dev_priv->ips.cur_delay != dev_priv->ips.min_delay) |
| 659 | new_delay = dev_priv->ips.cur_delay + 1; |
| 660 | if (new_delay > dev_priv->ips.min_delay) |
| 661 | new_delay = dev_priv->ips.min_delay; |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 662 | } |
| 663 | |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 664 | if (ironlake_set_drps(dev, new_delay)) |
Daniel Vetter | 20e4d40 | 2012-08-08 23:35:39 +0200 | [diff] [blame] | 665 | dev_priv->ips.cur_delay = new_delay; |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 666 | |
Daniel Vetter | 9270388 | 2012-08-09 16:46:01 +0200 | [diff] [blame] | 667 | spin_unlock_irqrestore(&mchdev_lock, flags); |
| 668 | |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 669 | return; |
| 670 | } |
| 671 | |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 672 | static void notify_ring(struct drm_device *dev, |
| 673 | struct intel_ring_buffer *ring) |
| 674 | { |
| 675 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 9862e60 | 2011-01-04 22:22:17 +0000 | [diff] [blame] | 676 | |
Chris Wilson | 475553d | 2011-01-20 09:52:56 +0000 | [diff] [blame] | 677 | if (ring->obj == NULL) |
| 678 | return; |
| 679 | |
Chris Wilson | b2eadbc | 2012-08-09 10:58:30 +0100 | [diff] [blame] | 680 | trace_i915_gem_request_complete(ring, ring->get_seqno(ring, false)); |
Chris Wilson | 9862e60 | 2011-01-04 22:22:17 +0000 | [diff] [blame] | 681 | |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 682 | wake_up_all(&ring->irq_queue); |
Ben Widawsky | 3e0dc6b | 2011-06-29 10:26:42 -0700 | [diff] [blame] | 683 | if (i915_enable_hangcheck) { |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 684 | dev_priv->gpu_error.hangcheck_count = 0; |
| 685 | mod_timer(&dev_priv->gpu_error.hangcheck_timer, |
Chris Wilson | cecc21f | 2012-10-05 17:02:56 +0100 | [diff] [blame] | 686 | round_jiffies_up(jiffies + DRM_I915_HANGCHECK_JIFFIES)); |
Ben Widawsky | 3e0dc6b | 2011-06-29 10:26:42 -0700 | [diff] [blame] | 687 | } |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 688 | } |
| 689 | |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 690 | static void gen6_pm_rps_work(struct work_struct *work) |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 691 | { |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 692 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 693 | rps.work); |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 694 | u32 pm_iir, pm_imr; |
Chris Wilson | 7b9e0ae | 2012-04-28 08:56:39 +0100 | [diff] [blame] | 695 | u8 new_delay; |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 696 | |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 697 | spin_lock_irq(&dev_priv->rps.lock); |
| 698 | pm_iir = dev_priv->rps.pm_iir; |
| 699 | dev_priv->rps.pm_iir = 0; |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 700 | pm_imr = I915_READ(GEN6_PMIMR); |
Daniel Vetter | a9e2641 | 2011-09-08 14:00:21 +0200 | [diff] [blame] | 701 | I915_WRITE(GEN6_PMIMR, 0); |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 702 | spin_unlock_irq(&dev_priv->rps.lock); |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 703 | |
Chris Wilson | 7b9e0ae | 2012-04-28 08:56:39 +0100 | [diff] [blame] | 704 | if ((pm_iir & GEN6_PM_DEFERRED_EVENTS) == 0) |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 705 | return; |
| 706 | |
Jesse Barnes | 4fc688c | 2012-11-02 11:14:01 -0700 | [diff] [blame] | 707 | mutex_lock(&dev_priv->rps.hw_lock); |
Chris Wilson | 7b9e0ae | 2012-04-28 08:56:39 +0100 | [diff] [blame] | 708 | |
| 709 | if (pm_iir & GEN6_PM_RP_UP_THRESHOLD) |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 710 | new_delay = dev_priv->rps.cur_delay + 1; |
Chris Wilson | 7b9e0ae | 2012-04-28 08:56:39 +0100 | [diff] [blame] | 711 | else |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 712 | new_delay = dev_priv->rps.cur_delay - 1; |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 713 | |
Ben Widawsky | 7924963 | 2012-09-07 19:43:42 -0700 | [diff] [blame] | 714 | /* sysfs frequency interfaces may have snuck in while servicing the |
| 715 | * interrupt |
| 716 | */ |
| 717 | if (!(new_delay > dev_priv->rps.max_delay || |
| 718 | new_delay < dev_priv->rps.min_delay)) { |
Jesse Barnes | 0a073b8 | 2013-04-17 15:54:58 -0700 | [diff] [blame] | 719 | if (IS_VALLEYVIEW(dev_priv->dev)) |
| 720 | valleyview_set_rps(dev_priv->dev, new_delay); |
| 721 | else |
| 722 | gen6_set_rps(dev_priv->dev, new_delay); |
Ben Widawsky | 7924963 | 2012-09-07 19:43:42 -0700 | [diff] [blame] | 723 | } |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 724 | |
Jesse Barnes | 52ceb90 | 2013-04-23 10:09:26 -0700 | [diff] [blame] | 725 | if (IS_VALLEYVIEW(dev_priv->dev)) { |
| 726 | /* |
| 727 | * On VLV, when we enter RC6 we may not be at the minimum |
| 728 | * voltage level, so arm a timer to check. It should only |
| 729 | * fire when there's activity or once after we've entered |
| 730 | * RC6, and then won't be re-armed until the next RPS interrupt. |
| 731 | */ |
| 732 | mod_delayed_work(dev_priv->wq, &dev_priv->rps.vlv_work, |
| 733 | msecs_to_jiffies(100)); |
| 734 | } |
| 735 | |
Jesse Barnes | 4fc688c | 2012-11-02 11:14:01 -0700 | [diff] [blame] | 736 | mutex_unlock(&dev_priv->rps.hw_lock); |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 737 | } |
| 738 | |
Ben Widawsky | e368919 | 2012-05-25 16:56:22 -0700 | [diff] [blame] | 739 | |
| 740 | /** |
| 741 | * ivybridge_parity_work - Workqueue called when a parity error interrupt |
| 742 | * occurred. |
| 743 | * @work: workqueue struct |
| 744 | * |
| 745 | * Doesn't actually do anything except notify userspace. As a consequence of |
| 746 | * this event, userspace should try to remap the bad rows since statistically |
| 747 | * it is likely the same row is more likely to go bad again. |
| 748 | */ |
| 749 | static void ivybridge_parity_work(struct work_struct *work) |
| 750 | { |
| 751 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, |
Daniel Vetter | a4da4fa | 2012-11-02 19:55:07 +0100 | [diff] [blame] | 752 | l3_parity.error_work); |
Ben Widawsky | e368919 | 2012-05-25 16:56:22 -0700 | [diff] [blame] | 753 | u32 error_status, row, bank, subbank; |
| 754 | char *parity_event[5]; |
| 755 | uint32_t misccpctl; |
| 756 | unsigned long flags; |
| 757 | |
| 758 | /* We must turn off DOP level clock gating to access the L3 registers. |
| 759 | * In order to prevent a get/put style interface, acquire struct mutex |
| 760 | * any time we access those registers. |
| 761 | */ |
| 762 | mutex_lock(&dev_priv->dev->struct_mutex); |
| 763 | |
| 764 | misccpctl = I915_READ(GEN7_MISCCPCTL); |
| 765 | I915_WRITE(GEN7_MISCCPCTL, misccpctl & ~GEN7_DOP_CLOCK_GATE_ENABLE); |
| 766 | POSTING_READ(GEN7_MISCCPCTL); |
| 767 | |
| 768 | error_status = I915_READ(GEN7_L3CDERRST1); |
| 769 | row = GEN7_PARITY_ERROR_ROW(error_status); |
| 770 | bank = GEN7_PARITY_ERROR_BANK(error_status); |
| 771 | subbank = GEN7_PARITY_ERROR_SUBBANK(error_status); |
| 772 | |
| 773 | I915_WRITE(GEN7_L3CDERRST1, GEN7_PARITY_ERROR_VALID | |
| 774 | GEN7_L3CDERRST1_ENABLE); |
| 775 | POSTING_READ(GEN7_L3CDERRST1); |
| 776 | |
| 777 | I915_WRITE(GEN7_MISCCPCTL, misccpctl); |
| 778 | |
| 779 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
| 780 | dev_priv->gt_irq_mask &= ~GT_GEN7_L3_PARITY_ERROR_INTERRUPT; |
| 781 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 782 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
| 783 | |
| 784 | mutex_unlock(&dev_priv->dev->struct_mutex); |
| 785 | |
| 786 | parity_event[0] = "L3_PARITY_ERROR=1"; |
| 787 | parity_event[1] = kasprintf(GFP_KERNEL, "ROW=%d", row); |
| 788 | parity_event[2] = kasprintf(GFP_KERNEL, "BANK=%d", bank); |
| 789 | parity_event[3] = kasprintf(GFP_KERNEL, "SUBBANK=%d", subbank); |
| 790 | parity_event[4] = NULL; |
| 791 | |
| 792 | kobject_uevent_env(&dev_priv->dev->primary->kdev.kobj, |
| 793 | KOBJ_CHANGE, parity_event); |
| 794 | |
| 795 | DRM_DEBUG("Parity error: Row = %d, Bank = %d, Sub bank = %d.\n", |
| 796 | row, bank, subbank); |
| 797 | |
| 798 | kfree(parity_event[3]); |
| 799 | kfree(parity_event[2]); |
| 800 | kfree(parity_event[1]); |
| 801 | } |
| 802 | |
Daniel Vetter | d2ba847 | 2012-05-31 14:57:41 +0200 | [diff] [blame] | 803 | static void ivybridge_handle_parity_error(struct drm_device *dev) |
Ben Widawsky | e368919 | 2012-05-25 16:56:22 -0700 | [diff] [blame] | 804 | { |
| 805 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 806 | unsigned long flags; |
| 807 | |
Ben Widawsky | e1ef7cc | 2012-07-24 20:47:31 -0700 | [diff] [blame] | 808 | if (!HAS_L3_GPU_CACHE(dev)) |
Ben Widawsky | e368919 | 2012-05-25 16:56:22 -0700 | [diff] [blame] | 809 | return; |
| 810 | |
| 811 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
| 812 | dev_priv->gt_irq_mask |= GT_GEN7_L3_PARITY_ERROR_INTERRUPT; |
| 813 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 814 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
| 815 | |
Daniel Vetter | a4da4fa | 2012-11-02 19:55:07 +0100 | [diff] [blame] | 816 | queue_work(dev_priv->wq, &dev_priv->l3_parity.error_work); |
Ben Widawsky | e368919 | 2012-05-25 16:56:22 -0700 | [diff] [blame] | 817 | } |
| 818 | |
Daniel Vetter | e7b4c6b | 2012-03-30 20:24:35 +0200 | [diff] [blame] | 819 | static void snb_gt_irq_handler(struct drm_device *dev, |
| 820 | struct drm_i915_private *dev_priv, |
| 821 | u32 gt_iir) |
| 822 | { |
| 823 | |
| 824 | if (gt_iir & (GEN6_RENDER_USER_INTERRUPT | |
| 825 | GEN6_RENDER_PIPE_CONTROL_NOTIFY_INTERRUPT)) |
| 826 | notify_ring(dev, &dev_priv->ring[RCS]); |
| 827 | if (gt_iir & GEN6_BSD_USER_INTERRUPT) |
| 828 | notify_ring(dev, &dev_priv->ring[VCS]); |
| 829 | if (gt_iir & GEN6_BLITTER_USER_INTERRUPT) |
| 830 | notify_ring(dev, &dev_priv->ring[BCS]); |
| 831 | |
| 832 | if (gt_iir & (GT_GEN6_BLT_CS_ERROR_INTERRUPT | |
| 833 | GT_GEN6_BSD_CS_ERROR_INTERRUPT | |
| 834 | GT_RENDER_CS_ERROR_INTERRUPT)) { |
| 835 | DRM_ERROR("GT error interrupt 0x%08x\n", gt_iir); |
| 836 | i915_handle_error(dev, false); |
| 837 | } |
Ben Widawsky | e368919 | 2012-05-25 16:56:22 -0700 | [diff] [blame] | 838 | |
| 839 | if (gt_iir & GT_GEN7_L3_PARITY_ERROR_INTERRUPT) |
| 840 | ivybridge_handle_parity_error(dev); |
Daniel Vetter | e7b4c6b | 2012-03-30 20:24:35 +0200 | [diff] [blame] | 841 | } |
| 842 | |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 843 | static void gen6_queue_rps_work(struct drm_i915_private *dev_priv, |
| 844 | u32 pm_iir) |
| 845 | { |
| 846 | unsigned long flags; |
| 847 | |
| 848 | /* |
| 849 | * IIR bits should never already be set because IMR should |
| 850 | * prevent an interrupt from being shown in IIR. The warning |
| 851 | * displays a case where we've unsafely cleared |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 852 | * dev_priv->rps.pm_iir. Although missing an interrupt of the same |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 853 | * type is not a problem, it displays a problem in the logic. |
| 854 | * |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 855 | * The mask bit in IMR is cleared by dev_priv->rps.work. |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 856 | */ |
| 857 | |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 858 | spin_lock_irqsave(&dev_priv->rps.lock, flags); |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 859 | dev_priv->rps.pm_iir |= pm_iir; |
| 860 | I915_WRITE(GEN6_PMIMR, dev_priv->rps.pm_iir); |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 861 | POSTING_READ(GEN6_PMIMR); |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 862 | spin_unlock_irqrestore(&dev_priv->rps.lock, flags); |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 863 | |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 864 | queue_work(dev_priv->wq, &dev_priv->rps.work); |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 865 | } |
| 866 | |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 867 | #define HPD_STORM_DETECT_PERIOD 1000 |
| 868 | #define HPD_STORM_THRESHOLD 5 |
| 869 | |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 870 | static inline bool hotplug_irq_storm_detect(struct drm_device *dev, |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 871 | u32 hotplug_trigger, |
| 872 | const u32 *hpd) |
| 873 | { |
| 874 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 875 | unsigned long irqflags; |
| 876 | int i; |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 877 | bool ret = false; |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 878 | |
| 879 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 880 | |
| 881 | for (i = 1; i < HPD_NUM_PINS; i++) { |
Egbert Eich | 821450c | 2013-04-16 13:36:55 +0200 | [diff] [blame] | 882 | |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 883 | if (!(hpd[i] & hotplug_trigger) || |
| 884 | dev_priv->hpd_stats[i].hpd_mark != HPD_ENABLED) |
| 885 | continue; |
| 886 | |
Jani Nikula | bc5ead8c | 2013-05-07 15:10:29 +0300 | [diff] [blame^] | 887 | dev_priv->hpd_event_bits |= (1 << i); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 888 | if (!time_in_range(jiffies, dev_priv->hpd_stats[i].hpd_last_jiffies, |
| 889 | dev_priv->hpd_stats[i].hpd_last_jiffies |
| 890 | + msecs_to_jiffies(HPD_STORM_DETECT_PERIOD))) { |
| 891 | dev_priv->hpd_stats[i].hpd_last_jiffies = jiffies; |
| 892 | dev_priv->hpd_stats[i].hpd_cnt = 0; |
| 893 | } else if (dev_priv->hpd_stats[i].hpd_cnt > HPD_STORM_THRESHOLD) { |
| 894 | dev_priv->hpd_stats[i].hpd_mark = HPD_MARK_DISABLED; |
Egbert Eich | 142e239 | 2013-04-11 15:57:57 +0200 | [diff] [blame] | 895 | dev_priv->hpd_event_bits &= ~(1 << i); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 896 | DRM_DEBUG_KMS("HPD interrupt storm detected on PIN %d\n", i); |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 897 | ret = true; |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 898 | } else { |
| 899 | dev_priv->hpd_stats[i].hpd_cnt++; |
| 900 | } |
| 901 | } |
| 902 | |
| 903 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 904 | |
| 905 | return ret; |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 906 | } |
| 907 | |
Daniel Vetter | 515ac2b | 2012-12-01 13:53:44 +0100 | [diff] [blame] | 908 | static void gmbus_irq_handler(struct drm_device *dev) |
| 909 | { |
Daniel Vetter | 28c70f1 | 2012-12-01 13:53:45 +0100 | [diff] [blame] | 910 | struct drm_i915_private *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 911 | |
Daniel Vetter | 28c70f1 | 2012-12-01 13:53:45 +0100 | [diff] [blame] | 912 | wake_up_all(&dev_priv->gmbus_wait_queue); |
Daniel Vetter | 515ac2b | 2012-12-01 13:53:44 +0100 | [diff] [blame] | 913 | } |
| 914 | |
Daniel Vetter | ce99c25 | 2012-12-01 13:53:47 +0100 | [diff] [blame] | 915 | static void dp_aux_irq_handler(struct drm_device *dev) |
| 916 | { |
Daniel Vetter | 9ee32fea | 2012-12-01 13:53:48 +0100 | [diff] [blame] | 917 | struct drm_i915_private *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 918 | |
Daniel Vetter | 9ee32fea | 2012-12-01 13:53:48 +0100 | [diff] [blame] | 919 | wake_up_all(&dev_priv->gmbus_wait_queue); |
Daniel Vetter | ce99c25 | 2012-12-01 13:53:47 +0100 | [diff] [blame] | 920 | } |
| 921 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 922 | static irqreturn_t valleyview_irq_handler(int irq, void *arg) |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 923 | { |
| 924 | struct drm_device *dev = (struct drm_device *) arg; |
| 925 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 926 | u32 iir, gt_iir, pm_iir; |
| 927 | irqreturn_t ret = IRQ_NONE; |
| 928 | unsigned long irqflags; |
| 929 | int pipe; |
| 930 | u32 pipe_stats[I915_MAX_PIPES]; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 931 | |
| 932 | atomic_inc(&dev_priv->irq_received); |
| 933 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 934 | while (true) { |
| 935 | iir = I915_READ(VLV_IIR); |
| 936 | gt_iir = I915_READ(GTIIR); |
| 937 | pm_iir = I915_READ(GEN6_PMIIR); |
| 938 | |
| 939 | if (gt_iir == 0 && pm_iir == 0 && iir == 0) |
| 940 | goto out; |
| 941 | |
| 942 | ret = IRQ_HANDLED; |
| 943 | |
Daniel Vetter | e7b4c6b | 2012-03-30 20:24:35 +0200 | [diff] [blame] | 944 | snb_gt_irq_handler(dev, dev_priv, gt_iir); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 945 | |
| 946 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 947 | for_each_pipe(pipe) { |
| 948 | int reg = PIPESTAT(pipe); |
| 949 | pipe_stats[pipe] = I915_READ(reg); |
| 950 | |
| 951 | /* |
| 952 | * Clear the PIPE*STAT regs before the IIR |
| 953 | */ |
| 954 | if (pipe_stats[pipe] & 0x8000ffff) { |
| 955 | if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS) |
| 956 | DRM_DEBUG_DRIVER("pipe %c underrun\n", |
| 957 | pipe_name(pipe)); |
| 958 | I915_WRITE(reg, pipe_stats[pipe]); |
| 959 | } |
| 960 | } |
| 961 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 962 | |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 963 | for_each_pipe(pipe) { |
| 964 | if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS) |
| 965 | drm_handle_vblank(dev, pipe); |
| 966 | |
| 967 | if (pipe_stats[pipe] & PLANE_FLIPDONE_INT_STATUS_VLV) { |
| 968 | intel_prepare_page_flip(dev, pipe); |
| 969 | intel_finish_page_flip(dev, pipe); |
| 970 | } |
| 971 | } |
| 972 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 973 | /* Consume port. Then clear IIR or we'll miss events */ |
| 974 | if (iir & I915_DISPLAY_PORT_INTERRUPT) { |
| 975 | u32 hotplug_status = I915_READ(PORT_HOTPLUG_STAT); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 976 | u32 hotplug_trigger = hotplug_status & HOTPLUG_INT_STATUS_I915; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 977 | |
| 978 | DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n", |
| 979 | hotplug_status); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 980 | if (hotplug_trigger) { |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 981 | if (hotplug_irq_storm_detect(dev, hotplug_trigger, hpd_status_i915)) |
| 982 | i915_hpd_irq_setup(dev); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 983 | queue_work(dev_priv->wq, |
| 984 | &dev_priv->hotplug_work); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 985 | } |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 986 | I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status); |
| 987 | I915_READ(PORT_HOTPLUG_STAT); |
| 988 | } |
| 989 | |
Daniel Vetter | 515ac2b | 2012-12-01 13:53:44 +0100 | [diff] [blame] | 990 | if (pipe_stats[0] & PIPE_GMBUS_INTERRUPT_STATUS) |
| 991 | gmbus_irq_handler(dev); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 992 | |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 993 | if (pm_iir & GEN6_PM_DEFERRED_EVENTS) |
| 994 | gen6_queue_rps_work(dev_priv, pm_iir); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 995 | |
| 996 | I915_WRITE(GTIIR, gt_iir); |
| 997 | I915_WRITE(GEN6_PMIIR, pm_iir); |
| 998 | I915_WRITE(VLV_IIR, iir); |
| 999 | } |
| 1000 | |
| 1001 | out: |
| 1002 | return ret; |
| 1003 | } |
| 1004 | |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 1005 | static void ibx_irq_handler(struct drm_device *dev, u32 pch_iir) |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1006 | { |
| 1007 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1008 | int pipe; |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 1009 | u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK; |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1010 | |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 1011 | if (hotplug_trigger) { |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 1012 | if (hotplug_irq_storm_detect(dev, hotplug_trigger, hpd_ibx)) |
| 1013 | ibx_hpd_irq_setup(dev); |
Daniel Vetter | 76e4383 | 2012-10-12 20:14:05 +0200 | [diff] [blame] | 1014 | queue_work(dev_priv->wq, &dev_priv->hotplug_work); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 1015 | } |
Ville Syrjälä | cfc33bf | 2013-04-17 17:48:48 +0300 | [diff] [blame] | 1016 | if (pch_iir & SDE_AUDIO_POWER_MASK) { |
| 1017 | int port = ffs((pch_iir & SDE_AUDIO_POWER_MASK) >> |
| 1018 | SDE_AUDIO_POWER_SHIFT); |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1019 | DRM_DEBUG_DRIVER("PCH audio power change on port %d\n", |
Ville Syrjälä | cfc33bf | 2013-04-17 17:48:48 +0300 | [diff] [blame] | 1020 | port_name(port)); |
| 1021 | } |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1022 | |
Daniel Vetter | ce99c25 | 2012-12-01 13:53:47 +0100 | [diff] [blame] | 1023 | if (pch_iir & SDE_AUX_MASK) |
| 1024 | dp_aux_irq_handler(dev); |
| 1025 | |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1026 | if (pch_iir & SDE_GMBUS) |
Daniel Vetter | 515ac2b | 2012-12-01 13:53:44 +0100 | [diff] [blame] | 1027 | gmbus_irq_handler(dev); |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1028 | |
| 1029 | if (pch_iir & SDE_AUDIO_HDCP_MASK) |
| 1030 | DRM_DEBUG_DRIVER("PCH HDCP audio interrupt\n"); |
| 1031 | |
| 1032 | if (pch_iir & SDE_AUDIO_TRANS_MASK) |
| 1033 | DRM_DEBUG_DRIVER("PCH transcoder audio interrupt\n"); |
| 1034 | |
| 1035 | if (pch_iir & SDE_POISON) |
| 1036 | DRM_ERROR("PCH poison interrupt\n"); |
| 1037 | |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1038 | if (pch_iir & SDE_FDI_MASK) |
| 1039 | for_each_pipe(pipe) |
| 1040 | DRM_DEBUG_DRIVER(" pipe %c FDI IIR: 0x%08x\n", |
| 1041 | pipe_name(pipe), |
| 1042 | I915_READ(FDI_RX_IIR(pipe))); |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1043 | |
| 1044 | if (pch_iir & (SDE_TRANSB_CRC_DONE | SDE_TRANSA_CRC_DONE)) |
| 1045 | DRM_DEBUG_DRIVER("PCH transcoder CRC done interrupt\n"); |
| 1046 | |
| 1047 | if (pch_iir & (SDE_TRANSB_CRC_ERR | SDE_TRANSA_CRC_ERR)) |
| 1048 | DRM_DEBUG_DRIVER("PCH transcoder CRC error interrupt\n"); |
| 1049 | |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1050 | if (pch_iir & SDE_TRANSA_FIFO_UNDER) |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 1051 | if (intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, |
| 1052 | false)) |
| 1053 | DRM_DEBUG_DRIVER("PCH transcoder A FIFO underrun\n"); |
| 1054 | |
| 1055 | if (pch_iir & SDE_TRANSB_FIFO_UNDER) |
| 1056 | if (intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_B, |
| 1057 | false)) |
| 1058 | DRM_DEBUG_DRIVER("PCH transcoder B FIFO underrun\n"); |
| 1059 | } |
| 1060 | |
| 1061 | static void ivb_err_int_handler(struct drm_device *dev) |
| 1062 | { |
| 1063 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1064 | u32 err_int = I915_READ(GEN7_ERR_INT); |
| 1065 | |
Paulo Zanoni | de032bf | 2013-04-12 17:57:58 -0300 | [diff] [blame] | 1066 | if (err_int & ERR_INT_POISON) |
| 1067 | DRM_ERROR("Poison interrupt\n"); |
| 1068 | |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 1069 | if (err_int & ERR_INT_FIFO_UNDERRUN_A) |
| 1070 | if (intel_set_cpu_fifo_underrun_reporting(dev, PIPE_A, false)) |
| 1071 | DRM_DEBUG_DRIVER("Pipe A FIFO underrun\n"); |
| 1072 | |
| 1073 | if (err_int & ERR_INT_FIFO_UNDERRUN_B) |
| 1074 | if (intel_set_cpu_fifo_underrun_reporting(dev, PIPE_B, false)) |
| 1075 | DRM_DEBUG_DRIVER("Pipe B FIFO underrun\n"); |
| 1076 | |
| 1077 | if (err_int & ERR_INT_FIFO_UNDERRUN_C) |
| 1078 | if (intel_set_cpu_fifo_underrun_reporting(dev, PIPE_C, false)) |
| 1079 | DRM_DEBUG_DRIVER("Pipe C FIFO underrun\n"); |
| 1080 | |
| 1081 | I915_WRITE(GEN7_ERR_INT, err_int); |
| 1082 | } |
| 1083 | |
| 1084 | static void cpt_serr_int_handler(struct drm_device *dev) |
| 1085 | { |
| 1086 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1087 | u32 serr_int = I915_READ(SERR_INT); |
| 1088 | |
Paulo Zanoni | de032bf | 2013-04-12 17:57:58 -0300 | [diff] [blame] | 1089 | if (serr_int & SERR_INT_POISON) |
| 1090 | DRM_ERROR("PCH poison interrupt\n"); |
| 1091 | |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 1092 | if (serr_int & SERR_INT_TRANS_A_FIFO_UNDERRUN) |
| 1093 | if (intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, |
| 1094 | false)) |
| 1095 | DRM_DEBUG_DRIVER("PCH transcoder A FIFO underrun\n"); |
| 1096 | |
| 1097 | if (serr_int & SERR_INT_TRANS_B_FIFO_UNDERRUN) |
| 1098 | if (intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_B, |
| 1099 | false)) |
| 1100 | DRM_DEBUG_DRIVER("PCH transcoder B FIFO underrun\n"); |
| 1101 | |
| 1102 | if (serr_int & SERR_INT_TRANS_C_FIFO_UNDERRUN) |
| 1103 | if (intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_C, |
| 1104 | false)) |
| 1105 | DRM_DEBUG_DRIVER("PCH transcoder C FIFO underrun\n"); |
| 1106 | |
| 1107 | I915_WRITE(SERR_INT, serr_int); |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1108 | } |
| 1109 | |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 1110 | static void cpt_irq_handler(struct drm_device *dev, u32 pch_iir) |
| 1111 | { |
| 1112 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1113 | int pipe; |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 1114 | u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_CPT; |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 1115 | |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 1116 | if (hotplug_trigger) { |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 1117 | if (hotplug_irq_storm_detect(dev, hotplug_trigger, hpd_cpt)) |
| 1118 | ibx_hpd_irq_setup(dev); |
Daniel Vetter | 76e4383 | 2012-10-12 20:14:05 +0200 | [diff] [blame] | 1119 | queue_work(dev_priv->wq, &dev_priv->hotplug_work); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 1120 | } |
Ville Syrjälä | cfc33bf | 2013-04-17 17:48:48 +0300 | [diff] [blame] | 1121 | if (pch_iir & SDE_AUDIO_POWER_MASK_CPT) { |
| 1122 | int port = ffs((pch_iir & SDE_AUDIO_POWER_MASK_CPT) >> |
| 1123 | SDE_AUDIO_POWER_SHIFT_CPT); |
| 1124 | DRM_DEBUG_DRIVER("PCH audio power change on port %c\n", |
| 1125 | port_name(port)); |
| 1126 | } |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 1127 | |
| 1128 | if (pch_iir & SDE_AUX_MASK_CPT) |
Daniel Vetter | ce99c25 | 2012-12-01 13:53:47 +0100 | [diff] [blame] | 1129 | dp_aux_irq_handler(dev); |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 1130 | |
| 1131 | if (pch_iir & SDE_GMBUS_CPT) |
Daniel Vetter | 515ac2b | 2012-12-01 13:53:44 +0100 | [diff] [blame] | 1132 | gmbus_irq_handler(dev); |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 1133 | |
| 1134 | if (pch_iir & SDE_AUDIO_CP_REQ_CPT) |
| 1135 | DRM_DEBUG_DRIVER("Audio CP request interrupt\n"); |
| 1136 | |
| 1137 | if (pch_iir & SDE_AUDIO_CP_CHG_CPT) |
| 1138 | DRM_DEBUG_DRIVER("Audio CP change interrupt\n"); |
| 1139 | |
| 1140 | if (pch_iir & SDE_FDI_MASK_CPT) |
| 1141 | for_each_pipe(pipe) |
| 1142 | DRM_DEBUG_DRIVER(" pipe %c FDI IIR: 0x%08x\n", |
| 1143 | pipe_name(pipe), |
| 1144 | I915_READ(FDI_RX_IIR(pipe))); |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 1145 | |
| 1146 | if (pch_iir & SDE_ERROR_CPT) |
| 1147 | cpt_serr_int_handler(dev); |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 1148 | } |
| 1149 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 1150 | static irqreturn_t ivybridge_irq_handler(int irq, void *arg) |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1151 | { |
| 1152 | struct drm_device *dev = (struct drm_device *) arg; |
| 1153 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Ben Widawsky | ab5c608 | 2013-04-05 13:12:41 -0700 | [diff] [blame] | 1154 | u32 de_iir, gt_iir, de_ier, pm_iir, sde_ier = 0; |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1155 | irqreturn_t ret = IRQ_NONE; |
| 1156 | int i; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1157 | |
| 1158 | atomic_inc(&dev_priv->irq_received); |
| 1159 | |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 1160 | /* We get interrupts on unclaimed registers, so check for this before we |
| 1161 | * do any I915_{READ,WRITE}. */ |
| 1162 | if (IS_HASWELL(dev) && |
| 1163 | (I915_READ_NOTRACE(FPGA_DBG) & FPGA_DBG_RM_NOCLAIM)) { |
| 1164 | DRM_ERROR("Unclaimed register before interrupt\n"); |
| 1165 | I915_WRITE_NOTRACE(FPGA_DBG, FPGA_DBG_RM_NOCLAIM); |
| 1166 | } |
| 1167 | |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1168 | /* disable master interrupt before clearing iir */ |
| 1169 | de_ier = I915_READ(DEIER); |
| 1170 | I915_WRITE(DEIER, de_ier & ~DE_MASTER_IRQ_CONTROL); |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1171 | |
Paulo Zanoni | 44498ae | 2013-02-22 17:05:28 -0300 | [diff] [blame] | 1172 | /* Disable south interrupts. We'll only write to SDEIIR once, so further |
| 1173 | * interrupts will will be stored on its back queue, and then we'll be |
| 1174 | * able to process them after we restore SDEIER (as soon as we restore |
| 1175 | * it, we'll get an interrupt if SDEIIR still has something to process |
| 1176 | * due to its back queue). */ |
Ben Widawsky | ab5c608 | 2013-04-05 13:12:41 -0700 | [diff] [blame] | 1177 | if (!HAS_PCH_NOP(dev)) { |
| 1178 | sde_ier = I915_READ(SDEIER); |
| 1179 | I915_WRITE(SDEIER, 0); |
| 1180 | POSTING_READ(SDEIER); |
| 1181 | } |
Paulo Zanoni | 44498ae | 2013-02-22 17:05:28 -0300 | [diff] [blame] | 1182 | |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 1183 | /* On Haswell, also mask ERR_INT because we don't want to risk |
| 1184 | * generating "unclaimed register" interrupts from inside the interrupt |
| 1185 | * handler. */ |
| 1186 | if (IS_HASWELL(dev)) |
| 1187 | ironlake_disable_display_irq(dev_priv, DE_ERR_INT_IVB); |
| 1188 | |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1189 | gt_iir = I915_READ(GTIIR); |
| 1190 | if (gt_iir) { |
| 1191 | snb_gt_irq_handler(dev, dev_priv, gt_iir); |
| 1192 | I915_WRITE(GTIIR, gt_iir); |
| 1193 | ret = IRQ_HANDLED; |
| 1194 | } |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1195 | |
| 1196 | de_iir = I915_READ(DEIIR); |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1197 | if (de_iir) { |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 1198 | if (de_iir & DE_ERR_INT_IVB) |
| 1199 | ivb_err_int_handler(dev); |
| 1200 | |
Daniel Vetter | ce99c25 | 2012-12-01 13:53:47 +0100 | [diff] [blame] | 1201 | if (de_iir & DE_AUX_CHANNEL_A_IVB) |
| 1202 | dp_aux_irq_handler(dev); |
| 1203 | |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1204 | if (de_iir & DE_GSE_IVB) |
Jani Nikula | 81a0780 | 2013-04-24 22:18:44 +0300 | [diff] [blame] | 1205 | intel_opregion_asle_intr(dev); |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1206 | |
| 1207 | for (i = 0; i < 3; i++) { |
Daniel Vetter | 74d4444 | 2012-10-02 17:54:35 +0200 | [diff] [blame] | 1208 | if (de_iir & (DE_PIPEA_VBLANK_IVB << (5 * i))) |
| 1209 | drm_handle_vblank(dev, i); |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1210 | if (de_iir & (DE_PLANEA_FLIP_DONE_IVB << (5 * i))) { |
| 1211 | intel_prepare_page_flip(dev, i); |
| 1212 | intel_finish_page_flip_plane(dev, i); |
| 1213 | } |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1214 | } |
| 1215 | |
| 1216 | /* check event from PCH */ |
Ben Widawsky | ab5c608 | 2013-04-05 13:12:41 -0700 | [diff] [blame] | 1217 | if (!HAS_PCH_NOP(dev) && (de_iir & DE_PCH_EVENT_IVB)) { |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1218 | u32 pch_iir = I915_READ(SDEIIR); |
| 1219 | |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 1220 | cpt_irq_handler(dev, pch_iir); |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1221 | |
| 1222 | /* clear PCH hotplug event before clear CPU irq */ |
| 1223 | I915_WRITE(SDEIIR, pch_iir); |
| 1224 | } |
| 1225 | |
| 1226 | I915_WRITE(DEIIR, de_iir); |
| 1227 | ret = IRQ_HANDLED; |
| 1228 | } |
| 1229 | |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1230 | pm_iir = I915_READ(GEN6_PMIIR); |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 1231 | if (pm_iir) { |
| 1232 | if (pm_iir & GEN6_PM_DEFERRED_EVENTS) |
| 1233 | gen6_queue_rps_work(dev_priv, pm_iir); |
| 1234 | I915_WRITE(GEN6_PMIIR, pm_iir); |
| 1235 | ret = IRQ_HANDLED; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1236 | } |
| 1237 | |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 1238 | if (IS_HASWELL(dev) && ivb_can_enable_err_int(dev)) |
| 1239 | ironlake_enable_display_irq(dev_priv, DE_ERR_INT_IVB); |
| 1240 | |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1241 | I915_WRITE(DEIER, de_ier); |
| 1242 | POSTING_READ(DEIER); |
Ben Widawsky | ab5c608 | 2013-04-05 13:12:41 -0700 | [diff] [blame] | 1243 | if (!HAS_PCH_NOP(dev)) { |
| 1244 | I915_WRITE(SDEIER, sde_ier); |
| 1245 | POSTING_READ(SDEIER); |
| 1246 | } |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1247 | |
| 1248 | return ret; |
| 1249 | } |
| 1250 | |
Daniel Vetter | e7b4c6b | 2012-03-30 20:24:35 +0200 | [diff] [blame] | 1251 | static void ilk_gt_irq_handler(struct drm_device *dev, |
| 1252 | struct drm_i915_private *dev_priv, |
| 1253 | u32 gt_iir) |
| 1254 | { |
| 1255 | if (gt_iir & (GT_USER_INTERRUPT | GT_PIPE_NOTIFY)) |
| 1256 | notify_ring(dev, &dev_priv->ring[RCS]); |
| 1257 | if (gt_iir & GT_BSD_USER_INTERRUPT) |
| 1258 | notify_ring(dev, &dev_priv->ring[VCS]); |
| 1259 | } |
| 1260 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 1261 | static irqreturn_t ironlake_irq_handler(int irq, void *arg) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1262 | { |
Jesse Barnes | 4697995 | 2011-04-07 13:53:55 -0700 | [diff] [blame] | 1263 | struct drm_device *dev = (struct drm_device *) arg; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1264 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1265 | int ret = IRQ_NONE; |
Paulo Zanoni | 44498ae | 2013-02-22 17:05:28 -0300 | [diff] [blame] | 1266 | u32 de_iir, gt_iir, de_ier, pm_iir, sde_ier; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1267 | |
Jesse Barnes | 4697995 | 2011-04-07 13:53:55 -0700 | [diff] [blame] | 1268 | atomic_inc(&dev_priv->irq_received); |
| 1269 | |
Zou, Nanhai | 2d109a8 | 2009-11-06 02:13:01 +0000 | [diff] [blame] | 1270 | /* disable master interrupt before clearing iir */ |
| 1271 | de_ier = I915_READ(DEIER); |
| 1272 | I915_WRITE(DEIER, de_ier & ~DE_MASTER_IRQ_CONTROL); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1273 | POSTING_READ(DEIER); |
Zou, Nanhai | 2d109a8 | 2009-11-06 02:13:01 +0000 | [diff] [blame] | 1274 | |
Paulo Zanoni | 44498ae | 2013-02-22 17:05:28 -0300 | [diff] [blame] | 1275 | /* Disable south interrupts. We'll only write to SDEIIR once, so further |
| 1276 | * interrupts will will be stored on its back queue, and then we'll be |
| 1277 | * able to process them after we restore SDEIER (as soon as we restore |
| 1278 | * it, we'll get an interrupt if SDEIIR still has something to process |
| 1279 | * due to its back queue). */ |
| 1280 | sde_ier = I915_READ(SDEIER); |
| 1281 | I915_WRITE(SDEIER, 0); |
| 1282 | POSTING_READ(SDEIER); |
| 1283 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1284 | de_iir = I915_READ(DEIIR); |
| 1285 | gt_iir = I915_READ(GTIIR); |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 1286 | pm_iir = I915_READ(GEN6_PMIIR); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1287 | |
Daniel Vetter | acd15b6 | 2012-11-30 11:24:50 +0100 | [diff] [blame] | 1288 | if (de_iir == 0 && gt_iir == 0 && (!IS_GEN6(dev) || pm_iir == 0)) |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 1289 | goto done; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1290 | |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 1291 | ret = IRQ_HANDLED; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1292 | |
Daniel Vetter | e7b4c6b | 2012-03-30 20:24:35 +0200 | [diff] [blame] | 1293 | if (IS_GEN5(dev)) |
| 1294 | ilk_gt_irq_handler(dev, dev_priv, gt_iir); |
| 1295 | else |
| 1296 | snb_gt_irq_handler(dev, dev_priv, gt_iir); |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 1297 | |
Daniel Vetter | ce99c25 | 2012-12-01 13:53:47 +0100 | [diff] [blame] | 1298 | if (de_iir & DE_AUX_CHANNEL_A) |
| 1299 | dp_aux_irq_handler(dev); |
| 1300 | |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 1301 | if (de_iir & DE_GSE) |
Jani Nikula | 81a0780 | 2013-04-24 22:18:44 +0300 | [diff] [blame] | 1302 | intel_opregion_asle_intr(dev); |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 1303 | |
Daniel Vetter | 74d4444 | 2012-10-02 17:54:35 +0200 | [diff] [blame] | 1304 | if (de_iir & DE_PIPEA_VBLANK) |
| 1305 | drm_handle_vblank(dev, 0); |
| 1306 | |
| 1307 | if (de_iir & DE_PIPEB_VBLANK) |
| 1308 | drm_handle_vblank(dev, 1); |
| 1309 | |
Paulo Zanoni | de032bf | 2013-04-12 17:57:58 -0300 | [diff] [blame] | 1310 | if (de_iir & DE_POISON) |
| 1311 | DRM_ERROR("Poison interrupt\n"); |
| 1312 | |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 1313 | if (de_iir & DE_PIPEA_FIFO_UNDERRUN) |
| 1314 | if (intel_set_cpu_fifo_underrun_reporting(dev, PIPE_A, false)) |
| 1315 | DRM_DEBUG_DRIVER("Pipe A FIFO underrun\n"); |
| 1316 | |
| 1317 | if (de_iir & DE_PIPEB_FIFO_UNDERRUN) |
| 1318 | if (intel_set_cpu_fifo_underrun_reporting(dev, PIPE_B, false)) |
| 1319 | DRM_DEBUG_DRIVER("Pipe B FIFO underrun\n"); |
| 1320 | |
Zhenyu Wang | f072d2e | 2010-02-09 09:46:19 +0800 | [diff] [blame] | 1321 | if (de_iir & DE_PLANEA_FLIP_DONE) { |
Jesse Barnes | 013d5aa | 2010-01-29 11:18:31 -0800 | [diff] [blame] | 1322 | intel_prepare_page_flip(dev, 0); |
Chris Wilson | 2bbda38 | 2010-09-02 17:59:39 +0100 | [diff] [blame] | 1323 | intel_finish_page_flip_plane(dev, 0); |
Jesse Barnes | 013d5aa | 2010-01-29 11:18:31 -0800 | [diff] [blame] | 1324 | } |
| 1325 | |
Zhenyu Wang | f072d2e | 2010-02-09 09:46:19 +0800 | [diff] [blame] | 1326 | if (de_iir & DE_PLANEB_FLIP_DONE) { |
| 1327 | intel_prepare_page_flip(dev, 1); |
Chris Wilson | 2bbda38 | 2010-09-02 17:59:39 +0100 | [diff] [blame] | 1328 | intel_finish_page_flip_plane(dev, 1); |
Jesse Barnes | 013d5aa | 2010-01-29 11:18:31 -0800 | [diff] [blame] | 1329 | } |
Li Peng | c062df6 | 2010-01-23 00:12:58 +0800 | [diff] [blame] | 1330 | |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 1331 | /* check event from PCH */ |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1332 | if (de_iir & DE_PCH_EVENT) { |
Daniel Vetter | acd15b6 | 2012-11-30 11:24:50 +0100 | [diff] [blame] | 1333 | u32 pch_iir = I915_READ(SDEIIR); |
| 1334 | |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 1335 | if (HAS_PCH_CPT(dev)) |
| 1336 | cpt_irq_handler(dev, pch_iir); |
| 1337 | else |
| 1338 | ibx_irq_handler(dev, pch_iir); |
Daniel Vetter | acd15b6 | 2012-11-30 11:24:50 +0100 | [diff] [blame] | 1339 | |
| 1340 | /* should clear PCH hotplug event before clear CPU irq */ |
| 1341 | I915_WRITE(SDEIIR, pch_iir); |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 1342 | } |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 1343 | |
Daniel Vetter | 73edd18f | 2012-08-08 23:35:37 +0200 | [diff] [blame] | 1344 | if (IS_GEN5(dev) && de_iir & DE_PCU_EVENT) |
| 1345 | ironlake_handle_rps_change(dev); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 1346 | |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 1347 | if (IS_GEN6(dev) && pm_iir & GEN6_PM_DEFERRED_EVENTS) |
| 1348 | gen6_queue_rps_work(dev_priv, pm_iir); |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 1349 | |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 1350 | I915_WRITE(GTIIR, gt_iir); |
| 1351 | I915_WRITE(DEIIR, de_iir); |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 1352 | I915_WRITE(GEN6_PMIIR, pm_iir); |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 1353 | |
| 1354 | done: |
Zou, Nanhai | 2d109a8 | 2009-11-06 02:13:01 +0000 | [diff] [blame] | 1355 | I915_WRITE(DEIER, de_ier); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1356 | POSTING_READ(DEIER); |
Paulo Zanoni | 44498ae | 2013-02-22 17:05:28 -0300 | [diff] [blame] | 1357 | I915_WRITE(SDEIER, sde_ier); |
| 1358 | POSTING_READ(SDEIER); |
Zou, Nanhai | 2d109a8 | 2009-11-06 02:13:01 +0000 | [diff] [blame] | 1359 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1360 | return ret; |
| 1361 | } |
| 1362 | |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1363 | /** |
| 1364 | * i915_error_work_func - do process context error handling work |
| 1365 | * @work: work struct |
| 1366 | * |
| 1367 | * Fire an error uevent so userspace can see that a hang or error |
| 1368 | * was detected. |
| 1369 | */ |
| 1370 | static void i915_error_work_func(struct work_struct *work) |
| 1371 | { |
Daniel Vetter | 1f83fee | 2012-11-15 17:17:22 +0100 | [diff] [blame] | 1372 | struct i915_gpu_error *error = container_of(work, struct i915_gpu_error, |
| 1373 | work); |
| 1374 | drm_i915_private_t *dev_priv = container_of(error, drm_i915_private_t, |
| 1375 | gpu_error); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1376 | struct drm_device *dev = dev_priv->dev; |
Daniel Vetter | f69061b | 2012-12-06 09:01:42 +0100 | [diff] [blame] | 1377 | struct intel_ring_buffer *ring; |
Ben Gamari | f316a42 | 2009-09-14 17:48:46 -0400 | [diff] [blame] | 1378 | char *error_event[] = { "ERROR=1", NULL }; |
| 1379 | char *reset_event[] = { "RESET=1", NULL }; |
| 1380 | char *reset_done_event[] = { "ERROR=0", NULL }; |
Daniel Vetter | f69061b | 2012-12-06 09:01:42 +0100 | [diff] [blame] | 1381 | int i, ret; |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1382 | |
Ben Gamari | f316a42 | 2009-09-14 17:48:46 -0400 | [diff] [blame] | 1383 | kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, error_event); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1384 | |
Daniel Vetter | 7db0ba2 | 2012-12-06 16:23:37 +0100 | [diff] [blame] | 1385 | /* |
| 1386 | * Note that there's only one work item which does gpu resets, so we |
| 1387 | * need not worry about concurrent gpu resets potentially incrementing |
| 1388 | * error->reset_counter twice. We only need to take care of another |
| 1389 | * racing irq/hangcheck declaring the gpu dead for a second time. A |
| 1390 | * quick check for that is good enough: schedule_work ensures the |
| 1391 | * correct ordering between hang detection and this work item, and since |
| 1392 | * the reset in-progress bit is only ever set by code outside of this |
| 1393 | * work we don't need to worry about any other races. |
| 1394 | */ |
| 1395 | if (i915_reset_in_progress(error) && !i915_terminally_wedged(error)) { |
Chris Wilson | f803aa5 | 2010-09-19 12:38:26 +0100 | [diff] [blame] | 1396 | DRM_DEBUG_DRIVER("resetting chip\n"); |
Daniel Vetter | 7db0ba2 | 2012-12-06 16:23:37 +0100 | [diff] [blame] | 1397 | kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, |
| 1398 | reset_event); |
Daniel Vetter | 1f83fee | 2012-11-15 17:17:22 +0100 | [diff] [blame] | 1399 | |
Daniel Vetter | f69061b | 2012-12-06 09:01:42 +0100 | [diff] [blame] | 1400 | ret = i915_reset(dev); |
| 1401 | |
| 1402 | if (ret == 0) { |
| 1403 | /* |
| 1404 | * After all the gem state is reset, increment the reset |
| 1405 | * counter and wake up everyone waiting for the reset to |
| 1406 | * complete. |
| 1407 | * |
| 1408 | * Since unlock operations are a one-sided barrier only, |
| 1409 | * we need to insert a barrier here to order any seqno |
| 1410 | * updates before |
| 1411 | * the counter increment. |
| 1412 | */ |
| 1413 | smp_mb__before_atomic_inc(); |
| 1414 | atomic_inc(&dev_priv->gpu_error.reset_counter); |
| 1415 | |
| 1416 | kobject_uevent_env(&dev->primary->kdev.kobj, |
| 1417 | KOBJ_CHANGE, reset_done_event); |
Daniel Vetter | 1f83fee | 2012-11-15 17:17:22 +0100 | [diff] [blame] | 1418 | } else { |
| 1419 | atomic_set(&error->reset_counter, I915_WEDGED); |
Ben Gamari | f316a42 | 2009-09-14 17:48:46 -0400 | [diff] [blame] | 1420 | } |
Daniel Vetter | 1f83fee | 2012-11-15 17:17:22 +0100 | [diff] [blame] | 1421 | |
Daniel Vetter | f69061b | 2012-12-06 09:01:42 +0100 | [diff] [blame] | 1422 | for_each_ring(ring, dev_priv, i) |
| 1423 | wake_up_all(&ring->irq_queue); |
| 1424 | |
Ville Syrjälä | 96a0291 | 2013-02-18 19:08:49 +0200 | [diff] [blame] | 1425 | intel_display_handle_reset(dev); |
| 1426 | |
Daniel Vetter | 1f83fee | 2012-11-15 17:17:22 +0100 | [diff] [blame] | 1427 | wake_up_all(&dev_priv->gpu_error.reset_queue); |
Ben Gamari | f316a42 | 2009-09-14 17:48:46 -0400 | [diff] [blame] | 1428 | } |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1429 | } |
| 1430 | |
Daniel Vetter | 85f9e50 | 2012-08-31 21:42:26 +0200 | [diff] [blame] | 1431 | /* NB: please notice the memset */ |
| 1432 | static void i915_get_extra_instdone(struct drm_device *dev, |
| 1433 | uint32_t *instdone) |
| 1434 | { |
| 1435 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1436 | memset(instdone, 0, sizeof(*instdone) * I915_NUM_INSTDONE_REG); |
| 1437 | |
| 1438 | switch(INTEL_INFO(dev)->gen) { |
| 1439 | case 2: |
| 1440 | case 3: |
| 1441 | instdone[0] = I915_READ(INSTDONE); |
| 1442 | break; |
| 1443 | case 4: |
| 1444 | case 5: |
| 1445 | case 6: |
| 1446 | instdone[0] = I915_READ(INSTDONE_I965); |
| 1447 | instdone[1] = I915_READ(INSTDONE1); |
| 1448 | break; |
| 1449 | default: |
| 1450 | WARN_ONCE(1, "Unsupported platform\n"); |
| 1451 | case 7: |
| 1452 | instdone[0] = I915_READ(GEN7_INSTDONE_1); |
| 1453 | instdone[1] = I915_READ(GEN7_SC_INSTDONE); |
| 1454 | instdone[2] = I915_READ(GEN7_SAMPLER_INSTDONE); |
| 1455 | instdone[3] = I915_READ(GEN7_ROW_INSTDONE); |
| 1456 | break; |
| 1457 | } |
| 1458 | } |
| 1459 | |
Chris Wilson | 3bd3c93 | 2010-08-19 08:19:30 +0100 | [diff] [blame] | 1460 | #ifdef CONFIG_DEBUG_FS |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1461 | static struct drm_i915_error_object * |
Ben Widawsky | d0d045e | 2013-02-24 18:10:00 -0800 | [diff] [blame] | 1462 | i915_error_object_create_sized(struct drm_i915_private *dev_priv, |
| 1463 | struct drm_i915_gem_object *src, |
| 1464 | const int num_pages) |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1465 | { |
| 1466 | struct drm_i915_error_object *dst; |
Ben Widawsky | d0d045e | 2013-02-24 18:10:00 -0800 | [diff] [blame] | 1467 | int i; |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 1468 | u32 reloc_offset; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1469 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1470 | if (src == NULL || src->pages == NULL) |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1471 | return NULL; |
| 1472 | |
Ben Widawsky | d0d045e | 2013-02-24 18:10:00 -0800 | [diff] [blame] | 1473 | dst = kmalloc(sizeof(*dst) + num_pages * sizeof(u32 *), GFP_ATOMIC); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1474 | if (dst == NULL) |
| 1475 | return NULL; |
| 1476 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1477 | reloc_offset = src->gtt_offset; |
Ben Widawsky | d0d045e | 2013-02-24 18:10:00 -0800 | [diff] [blame] | 1478 | for (i = 0; i < num_pages; i++) { |
Andrew Morton | 788885a | 2010-05-11 14:07:05 -0700 | [diff] [blame] | 1479 | unsigned long flags; |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 1480 | void *d; |
Andrew Morton | 788885a | 2010-05-11 14:07:05 -0700 | [diff] [blame] | 1481 | |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 1482 | d = kmalloc(PAGE_SIZE, GFP_ATOMIC); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1483 | if (d == NULL) |
| 1484 | goto unwind; |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 1485 | |
Andrew Morton | 788885a | 2010-05-11 14:07:05 -0700 | [diff] [blame] | 1486 | local_irq_save(flags); |
Ben Widawsky | 5d4545a | 2013-01-17 12:45:15 -0800 | [diff] [blame] | 1487 | if (reloc_offset < dev_priv->gtt.mappable_end && |
Daniel Vetter | 74898d7 | 2012-02-15 23:50:22 +0100 | [diff] [blame] | 1488 | src->has_global_gtt_mapping) { |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 1489 | void __iomem *s; |
| 1490 | |
| 1491 | /* Simply ignore tiling or any overlapping fence. |
| 1492 | * It's part of the error state, and this hopefully |
| 1493 | * captures what the GPU read. |
| 1494 | */ |
| 1495 | |
Ben Widawsky | 5d4545a | 2013-01-17 12:45:15 -0800 | [diff] [blame] | 1496 | s = io_mapping_map_atomic_wc(dev_priv->gtt.mappable, |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 1497 | reloc_offset); |
| 1498 | memcpy_fromio(d, s, PAGE_SIZE); |
| 1499 | io_mapping_unmap_atomic(s); |
Chris Wilson | 960e356 | 2012-11-15 11:32:23 +0000 | [diff] [blame] | 1500 | } else if (src->stolen) { |
| 1501 | unsigned long offset; |
| 1502 | |
| 1503 | offset = dev_priv->mm.stolen_base; |
| 1504 | offset += src->stolen->start; |
| 1505 | offset += i << PAGE_SHIFT; |
| 1506 | |
Daniel Vetter | 1a240d4 | 2012-11-29 22:18:51 +0100 | [diff] [blame] | 1507 | memcpy_fromio(d, (void __iomem *) offset, PAGE_SIZE); |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 1508 | } else { |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 1509 | struct page *page; |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 1510 | void *s; |
| 1511 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 1512 | page = i915_gem_object_get_page(src, i); |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 1513 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 1514 | drm_clflush_pages(&page, 1); |
| 1515 | |
| 1516 | s = kmap_atomic(page); |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 1517 | memcpy(d, s, PAGE_SIZE); |
| 1518 | kunmap_atomic(s); |
| 1519 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 1520 | drm_clflush_pages(&page, 1); |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 1521 | } |
Andrew Morton | 788885a | 2010-05-11 14:07:05 -0700 | [diff] [blame] | 1522 | local_irq_restore(flags); |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 1523 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 1524 | dst->pages[i] = d; |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 1525 | |
| 1526 | reloc_offset += PAGE_SIZE; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1527 | } |
Ben Widawsky | d0d045e | 2013-02-24 18:10:00 -0800 | [diff] [blame] | 1528 | dst->page_count = num_pages; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1529 | dst->gtt_offset = src->gtt_offset; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1530 | |
| 1531 | return dst; |
| 1532 | |
| 1533 | unwind: |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 1534 | while (i--) |
| 1535 | kfree(dst->pages[i]); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1536 | kfree(dst); |
| 1537 | return NULL; |
| 1538 | } |
Ben Widawsky | d0d045e | 2013-02-24 18:10:00 -0800 | [diff] [blame] | 1539 | #define i915_error_object_create(dev_priv, src) \ |
| 1540 | i915_error_object_create_sized((dev_priv), (src), \ |
| 1541 | (src)->base.size>>PAGE_SHIFT) |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1542 | |
| 1543 | static void |
| 1544 | i915_error_object_free(struct drm_i915_error_object *obj) |
| 1545 | { |
| 1546 | int page; |
| 1547 | |
| 1548 | if (obj == NULL) |
| 1549 | return; |
| 1550 | |
| 1551 | for (page = 0; page < obj->page_count; page++) |
| 1552 | kfree(obj->pages[page]); |
| 1553 | |
| 1554 | kfree(obj); |
| 1555 | } |
| 1556 | |
Daniel Vetter | 742cbee | 2012-04-27 15:17:39 +0200 | [diff] [blame] | 1557 | void |
| 1558 | i915_error_state_free(struct kref *error_ref) |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1559 | { |
Daniel Vetter | 742cbee | 2012-04-27 15:17:39 +0200 | [diff] [blame] | 1560 | struct drm_i915_error_state *error = container_of(error_ref, |
| 1561 | typeof(*error), ref); |
Chris Wilson | e2f973d | 2011-01-27 19:15:11 +0000 | [diff] [blame] | 1562 | int i; |
| 1563 | |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1564 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { |
| 1565 | i915_error_object_free(error->ring[i].batchbuffer); |
| 1566 | i915_error_object_free(error->ring[i].ringbuffer); |
| 1567 | kfree(error->ring[i].requests); |
| 1568 | } |
Chris Wilson | e2f973d | 2011-01-27 19:15:11 +0000 | [diff] [blame] | 1569 | |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1570 | kfree(error->active_bo); |
Chris Wilson | 6ef3d42 | 2010-08-04 20:26:07 +0100 | [diff] [blame] | 1571 | kfree(error->overlay); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1572 | kfree(error); |
| 1573 | } |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1574 | static void capture_bo(struct drm_i915_error_buffer *err, |
| 1575 | struct drm_i915_gem_object *obj) |
| 1576 | { |
| 1577 | err->size = obj->base.size; |
| 1578 | err->name = obj->base.name; |
Chris Wilson | 0201f1e | 2012-07-20 12:41:01 +0100 | [diff] [blame] | 1579 | err->rseqno = obj->last_read_seqno; |
| 1580 | err->wseqno = obj->last_write_seqno; |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1581 | err->gtt_offset = obj->gtt_offset; |
| 1582 | err->read_domains = obj->base.read_domains; |
| 1583 | err->write_domain = obj->base.write_domain; |
| 1584 | err->fence_reg = obj->fence_reg; |
| 1585 | err->pinned = 0; |
| 1586 | if (obj->pin_count > 0) |
| 1587 | err->pinned = 1; |
| 1588 | if (obj->user_pin_count > 0) |
| 1589 | err->pinned = -1; |
| 1590 | err->tiling = obj->tiling_mode; |
| 1591 | err->dirty = obj->dirty; |
| 1592 | err->purgeable = obj->madv != I915_MADV_WILLNEED; |
| 1593 | err->ring = obj->ring ? obj->ring->id : -1; |
| 1594 | err->cache_level = obj->cache_level; |
| 1595 | } |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1596 | |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1597 | static u32 capture_active_bo(struct drm_i915_error_buffer *err, |
| 1598 | int count, struct list_head *head) |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1599 | { |
| 1600 | struct drm_i915_gem_object *obj; |
| 1601 | int i = 0; |
| 1602 | |
| 1603 | list_for_each_entry(obj, head, mm_list) { |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1604 | capture_bo(err++, obj); |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1605 | if (++i == count) |
| 1606 | break; |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1607 | } |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1608 | |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1609 | return i; |
| 1610 | } |
| 1611 | |
| 1612 | static u32 capture_pinned_bo(struct drm_i915_error_buffer *err, |
| 1613 | int count, struct list_head *head) |
| 1614 | { |
| 1615 | struct drm_i915_gem_object *obj; |
| 1616 | int i = 0; |
| 1617 | |
| 1618 | list_for_each_entry(obj, head, gtt_list) { |
| 1619 | if (obj->pin_count == 0) |
| 1620 | continue; |
| 1621 | |
| 1622 | capture_bo(err++, obj); |
| 1623 | if (++i == count) |
| 1624 | break; |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1625 | } |
| 1626 | |
| 1627 | return i; |
| 1628 | } |
| 1629 | |
Chris Wilson | 748ebc6 | 2010-10-24 10:28:47 +0100 | [diff] [blame] | 1630 | static void i915_gem_record_fences(struct drm_device *dev, |
| 1631 | struct drm_i915_error_state *error) |
| 1632 | { |
| 1633 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1634 | int i; |
| 1635 | |
| 1636 | /* Fences */ |
| 1637 | switch (INTEL_INFO(dev)->gen) { |
Daniel Vetter | 775d17b | 2011-10-09 21:52:01 +0200 | [diff] [blame] | 1638 | case 7: |
Chris Wilson | 748ebc6 | 2010-10-24 10:28:47 +0100 | [diff] [blame] | 1639 | case 6: |
Ville Syrjälä | 42b5aea | 2013-04-09 13:02:47 +0300 | [diff] [blame] | 1640 | for (i = 0; i < dev_priv->num_fence_regs; i++) |
Chris Wilson | 748ebc6 | 2010-10-24 10:28:47 +0100 | [diff] [blame] | 1641 | error->fence[i] = I915_READ64(FENCE_REG_SANDYBRIDGE_0 + (i * 8)); |
| 1642 | break; |
| 1643 | case 5: |
| 1644 | case 4: |
| 1645 | for (i = 0; i < 16; i++) |
| 1646 | error->fence[i] = I915_READ64(FENCE_REG_965_0 + (i * 8)); |
| 1647 | break; |
| 1648 | case 3: |
| 1649 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
| 1650 | for (i = 0; i < 8; i++) |
| 1651 | error->fence[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4)); |
| 1652 | case 2: |
| 1653 | for (i = 0; i < 8; i++) |
| 1654 | error->fence[i] = I915_READ(FENCE_REG_830_0 + (i * 4)); |
| 1655 | break; |
| 1656 | |
Ben Widawsky | 7dbf9d6 | 2012-12-18 10:31:22 -0800 | [diff] [blame] | 1657 | default: |
| 1658 | BUG(); |
Chris Wilson | 748ebc6 | 2010-10-24 10:28:47 +0100 | [diff] [blame] | 1659 | } |
| 1660 | } |
| 1661 | |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1662 | static struct drm_i915_error_object * |
| 1663 | i915_error_first_batchbuffer(struct drm_i915_private *dev_priv, |
| 1664 | struct intel_ring_buffer *ring) |
| 1665 | { |
| 1666 | struct drm_i915_gem_object *obj; |
| 1667 | u32 seqno; |
| 1668 | |
| 1669 | if (!ring->get_seqno) |
| 1670 | return NULL; |
| 1671 | |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 1672 | if (HAS_BROKEN_CS_TLB(dev_priv->dev)) { |
| 1673 | u32 acthd = I915_READ(ACTHD); |
| 1674 | |
| 1675 | if (WARN_ON(ring->id != RCS)) |
| 1676 | return NULL; |
| 1677 | |
| 1678 | obj = ring->private; |
| 1679 | if (acthd >= obj->gtt_offset && |
| 1680 | acthd < obj->gtt_offset + obj->base.size) |
| 1681 | return i915_error_object_create(dev_priv, obj); |
| 1682 | } |
| 1683 | |
Chris Wilson | b2eadbc | 2012-08-09 10:58:30 +0100 | [diff] [blame] | 1684 | seqno = ring->get_seqno(ring, false); |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1685 | list_for_each_entry(obj, &dev_priv->mm.active_list, mm_list) { |
| 1686 | if (obj->ring != ring) |
| 1687 | continue; |
| 1688 | |
Chris Wilson | 0201f1e | 2012-07-20 12:41:01 +0100 | [diff] [blame] | 1689 | if (i915_seqno_passed(seqno, obj->last_read_seqno)) |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1690 | continue; |
| 1691 | |
| 1692 | if ((obj->base.read_domains & I915_GEM_DOMAIN_COMMAND) == 0) |
| 1693 | continue; |
| 1694 | |
| 1695 | /* We need to copy these to an anonymous buffer as the simplest |
| 1696 | * method to avoid being overwritten by userspace. |
| 1697 | */ |
| 1698 | return i915_error_object_create(dev_priv, obj); |
| 1699 | } |
| 1700 | |
| 1701 | return NULL; |
| 1702 | } |
| 1703 | |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1704 | static void i915_record_ring_state(struct drm_device *dev, |
| 1705 | struct drm_i915_error_state *error, |
| 1706 | struct intel_ring_buffer *ring) |
| 1707 | { |
| 1708 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1709 | |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1710 | if (INTEL_INFO(dev)->gen >= 6) { |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1711 | error->rc_psmi[ring->id] = I915_READ(ring->mmio_base + 0x50); |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1712 | error->fault_reg[ring->id] = I915_READ(RING_FAULT_REG(ring)); |
Daniel Vetter | 7e3b873 | 2012-02-01 22:26:45 +0100 | [diff] [blame] | 1713 | error->semaphore_mboxes[ring->id][0] |
| 1714 | = I915_READ(RING_SYNC_0(ring->mmio_base)); |
| 1715 | error->semaphore_mboxes[ring->id][1] |
| 1716 | = I915_READ(RING_SYNC_1(ring->mmio_base)); |
Chris Wilson | df2b23d | 2012-11-27 17:06:54 +0000 | [diff] [blame] | 1717 | error->semaphore_seqno[ring->id][0] = ring->sync_seqno[0]; |
| 1718 | error->semaphore_seqno[ring->id][1] = ring->sync_seqno[1]; |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1719 | } |
Daniel Vetter | c1cd90e | 2011-12-14 13:57:02 +0100 | [diff] [blame] | 1720 | |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1721 | if (INTEL_INFO(dev)->gen >= 4) { |
Daniel Vetter | 9d2f41f | 2012-04-02 21:41:45 +0200 | [diff] [blame] | 1722 | error->faddr[ring->id] = I915_READ(RING_DMA_FADD(ring->mmio_base)); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1723 | error->ipeir[ring->id] = I915_READ(RING_IPEIR(ring->mmio_base)); |
| 1724 | error->ipehr[ring->id] = I915_READ(RING_IPEHR(ring->mmio_base)); |
| 1725 | error->instdone[ring->id] = I915_READ(RING_INSTDONE(ring->mmio_base)); |
Daniel Vetter | c1cd90e | 2011-12-14 13:57:02 +0100 | [diff] [blame] | 1726 | error->instps[ring->id] = I915_READ(RING_INSTPS(ring->mmio_base)); |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1727 | if (ring->id == RCS) |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1728 | error->bbaddr = I915_READ64(BB_ADDR); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1729 | } else { |
Daniel Vetter | 9d2f41f | 2012-04-02 21:41:45 +0200 | [diff] [blame] | 1730 | error->faddr[ring->id] = I915_READ(DMA_FADD_I8XX); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1731 | error->ipeir[ring->id] = I915_READ(IPEIR); |
| 1732 | error->ipehr[ring->id] = I915_READ(IPEHR); |
| 1733 | error->instdone[ring->id] = I915_READ(INSTDONE); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1734 | } |
| 1735 | |
Ben Widawsky | 9574b3f | 2012-04-26 16:03:01 -0700 | [diff] [blame] | 1736 | error->waiting[ring->id] = waitqueue_active(&ring->irq_queue); |
Daniel Vetter | c1cd90e | 2011-12-14 13:57:02 +0100 | [diff] [blame] | 1737 | error->instpm[ring->id] = I915_READ(RING_INSTPM(ring->mmio_base)); |
Chris Wilson | b2eadbc | 2012-08-09 10:58:30 +0100 | [diff] [blame] | 1738 | error->seqno[ring->id] = ring->get_seqno(ring, false); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1739 | error->acthd[ring->id] = intel_ring_get_active_head(ring); |
Daniel Vetter | c1cd90e | 2011-12-14 13:57:02 +0100 | [diff] [blame] | 1740 | error->head[ring->id] = I915_READ_HEAD(ring); |
| 1741 | error->tail[ring->id] = I915_READ_TAIL(ring); |
Chris Wilson | 0f3b684 | 2013-01-15 12:05:55 +0000 | [diff] [blame] | 1742 | error->ctl[ring->id] = I915_READ_CTL(ring); |
Daniel Vetter | 7e3b873 | 2012-02-01 22:26:45 +0100 | [diff] [blame] | 1743 | |
| 1744 | error->cpu_ring_head[ring->id] = ring->head; |
| 1745 | error->cpu_ring_tail[ring->id] = ring->tail; |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1746 | } |
| 1747 | |
Ben Widawsky | 8c123e5 | 2013-03-04 17:00:29 -0800 | [diff] [blame] | 1748 | |
| 1749 | static void i915_gem_record_active_context(struct intel_ring_buffer *ring, |
| 1750 | struct drm_i915_error_state *error, |
| 1751 | struct drm_i915_error_ring *ering) |
| 1752 | { |
| 1753 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
| 1754 | struct drm_i915_gem_object *obj; |
| 1755 | |
| 1756 | /* Currently render ring is the only HW context user */ |
| 1757 | if (ring->id != RCS || !error->ccid) |
| 1758 | return; |
| 1759 | |
| 1760 | list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) { |
| 1761 | if ((error->ccid & PAGE_MASK) == obj->gtt_offset) { |
| 1762 | ering->ctx = i915_error_object_create_sized(dev_priv, |
| 1763 | obj, 1); |
| 1764 | } |
| 1765 | } |
| 1766 | } |
| 1767 | |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1768 | static void i915_gem_record_rings(struct drm_device *dev, |
| 1769 | struct drm_i915_error_state *error) |
| 1770 | { |
| 1771 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1772 | struct intel_ring_buffer *ring; |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1773 | struct drm_i915_gem_request *request; |
| 1774 | int i, count; |
| 1775 | |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1776 | for_each_ring(ring, dev_priv, i) { |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1777 | i915_record_ring_state(dev, error, ring); |
| 1778 | |
| 1779 | error->ring[i].batchbuffer = |
| 1780 | i915_error_first_batchbuffer(dev_priv, ring); |
| 1781 | |
| 1782 | error->ring[i].ringbuffer = |
| 1783 | i915_error_object_create(dev_priv, ring->obj); |
| 1784 | |
Ben Widawsky | 8c123e5 | 2013-03-04 17:00:29 -0800 | [diff] [blame] | 1785 | |
| 1786 | i915_gem_record_active_context(ring, error, &error->ring[i]); |
| 1787 | |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1788 | count = 0; |
| 1789 | list_for_each_entry(request, &ring->request_list, list) |
| 1790 | count++; |
| 1791 | |
| 1792 | error->ring[i].num_requests = count; |
| 1793 | error->ring[i].requests = |
| 1794 | kmalloc(count*sizeof(struct drm_i915_error_request), |
| 1795 | GFP_ATOMIC); |
| 1796 | if (error->ring[i].requests == NULL) { |
| 1797 | error->ring[i].num_requests = 0; |
| 1798 | continue; |
| 1799 | } |
| 1800 | |
| 1801 | count = 0; |
| 1802 | list_for_each_entry(request, &ring->request_list, list) { |
| 1803 | struct drm_i915_error_request *erq; |
| 1804 | |
| 1805 | erq = &error->ring[i].requests[count++]; |
| 1806 | erq->seqno = request->seqno; |
| 1807 | erq->jiffies = request->emitted_jiffies; |
Chris Wilson | ee4f42b | 2012-02-15 11:25:38 +0000 | [diff] [blame] | 1808 | erq->tail = request->tail; |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1809 | } |
| 1810 | } |
| 1811 | } |
| 1812 | |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1813 | /** |
| 1814 | * i915_capture_error_state - capture an error record for later analysis |
| 1815 | * @dev: drm device |
| 1816 | * |
| 1817 | * Should be called when an error is detected (either a hang or an error |
| 1818 | * interrupt) to capture error state from the time of the error. Fills |
| 1819 | * out a structure which becomes available in debugfs for user level tools |
| 1820 | * to pick up. |
| 1821 | */ |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1822 | static void i915_capture_error_state(struct drm_device *dev) |
| 1823 | { |
| 1824 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1825 | struct drm_i915_gem_object *obj; |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1826 | struct drm_i915_error_state *error; |
| 1827 | unsigned long flags; |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1828 | int i, pipe; |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1829 | |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 1830 | spin_lock_irqsave(&dev_priv->gpu_error.lock, flags); |
| 1831 | error = dev_priv->gpu_error.first_error; |
| 1832 | spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1833 | if (error) |
| 1834 | return; |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1835 | |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1836 | /* Account for pipe specific data like PIPE*STAT */ |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1837 | error = kzalloc(sizeof(*error), GFP_ATOMIC); |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1838 | if (!error) { |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1839 | DRM_DEBUG_DRIVER("out of memory, not capturing error state\n"); |
| 1840 | return; |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1841 | } |
| 1842 | |
Paulo Zanoni | 5d83d29 | 2013-03-06 20:03:22 -0300 | [diff] [blame] | 1843 | DRM_INFO("capturing error event; look for more information in " |
Ben Widawsky | 2f86f19 | 2013-01-28 15:32:15 -0800 | [diff] [blame] | 1844 | "/sys/kernel/debug/dri/%d/i915_error_state\n", |
Chris Wilson | b6f7833 | 2011-02-01 14:15:55 +0000 | [diff] [blame] | 1845 | dev->primary->index); |
Chris Wilson | 2fa772f | 2010-10-01 13:23:27 +0100 | [diff] [blame] | 1846 | |
Daniel Vetter | 742cbee | 2012-04-27 15:17:39 +0200 | [diff] [blame] | 1847 | kref_init(&error->ref); |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1848 | error->eir = I915_READ(EIR); |
| 1849 | error->pgtbl_er = I915_READ(PGTBL_ER); |
Ben Widawsky | 211816e | 2013-02-24 18:10:01 -0800 | [diff] [blame] | 1850 | if (HAS_HW_CONTEXTS(dev)) |
| 1851 | error->ccid = I915_READ(CCID); |
Ben Widawsky | be998e2 | 2012-04-26 16:03:00 -0700 | [diff] [blame] | 1852 | |
| 1853 | if (HAS_PCH_SPLIT(dev)) |
| 1854 | error->ier = I915_READ(DEIER) | I915_READ(GTIER); |
| 1855 | else if (IS_VALLEYVIEW(dev)) |
| 1856 | error->ier = I915_READ(GTIER) | I915_READ(VLV_IER); |
| 1857 | else if (IS_GEN2(dev)) |
| 1858 | error->ier = I915_READ16(IER); |
| 1859 | else |
| 1860 | error->ier = I915_READ(IER); |
| 1861 | |
Chris Wilson | 0f3b684 | 2013-01-15 12:05:55 +0000 | [diff] [blame] | 1862 | if (INTEL_INFO(dev)->gen >= 6) |
| 1863 | error->derrmr = I915_READ(DERRMR); |
| 1864 | |
| 1865 | if (IS_VALLEYVIEW(dev)) |
| 1866 | error->forcewake = I915_READ(FORCEWAKE_VLV); |
| 1867 | else if (INTEL_INFO(dev)->gen >= 7) |
| 1868 | error->forcewake = I915_READ(FORCEWAKE_MT); |
| 1869 | else if (INTEL_INFO(dev)->gen == 6) |
| 1870 | error->forcewake = I915_READ(FORCEWAKE); |
| 1871 | |
Paulo Zanoni | 4f3308b | 2013-03-22 14:24:16 -0300 | [diff] [blame] | 1872 | if (!HAS_PCH_SPLIT(dev)) |
| 1873 | for_each_pipe(pipe) |
| 1874 | error->pipestat[pipe] = I915_READ(PIPESTAT(pipe)); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1875 | |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1876 | if (INTEL_INFO(dev)->gen >= 6) { |
Chris Wilson | f406839 | 2010-10-27 20:36:41 +0100 | [diff] [blame] | 1877 | error->error = I915_READ(ERROR_GEN6); |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1878 | error->done_reg = I915_READ(DONE_REG); |
| 1879 | } |
Chris Wilson | add354d | 2010-10-29 19:00:51 +0100 | [diff] [blame] | 1880 | |
Ben Widawsky | 71e172e | 2012-08-20 16:15:13 -0700 | [diff] [blame] | 1881 | if (INTEL_INFO(dev)->gen == 7) |
| 1882 | error->err_int = I915_READ(GEN7_ERR_INT); |
| 1883 | |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1884 | i915_get_extra_instdone(dev, error->extra_instdone); |
| 1885 | |
Chris Wilson | 748ebc6 | 2010-10-24 10:28:47 +0100 | [diff] [blame] | 1886 | i915_gem_record_fences(dev, error); |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1887 | i915_gem_record_rings(dev, error); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1888 | |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1889 | /* Record buffers on the active and pinned lists. */ |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1890 | error->active_bo = NULL; |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1891 | error->pinned_bo = NULL; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1892 | |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1893 | i = 0; |
| 1894 | list_for_each_entry(obj, &dev_priv->mm.active_list, mm_list) |
| 1895 | i++; |
| 1896 | error->active_bo_count = i; |
Chris Wilson | 6c085a7 | 2012-08-20 11:40:46 +0200 | [diff] [blame] | 1897 | list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1898 | if (obj->pin_count) |
| 1899 | i++; |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1900 | error->pinned_bo_count = i - error->active_bo_count; |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1901 | |
Chris Wilson | 8e934db | 2011-01-24 12:34:00 +0000 | [diff] [blame] | 1902 | error->active_bo = NULL; |
| 1903 | error->pinned_bo = NULL; |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1904 | if (i) { |
| 1905 | error->active_bo = kmalloc(sizeof(*error->active_bo)*i, |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1906 | GFP_ATOMIC); |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1907 | if (error->active_bo) |
| 1908 | error->pinned_bo = |
| 1909 | error->active_bo + error->active_bo_count; |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1910 | } |
| 1911 | |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1912 | if (error->active_bo) |
| 1913 | error->active_bo_count = |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1914 | capture_active_bo(error->active_bo, |
| 1915 | error->active_bo_count, |
| 1916 | &dev_priv->mm.active_list); |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1917 | |
| 1918 | if (error->pinned_bo) |
| 1919 | error->pinned_bo_count = |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1920 | capture_pinned_bo(error->pinned_bo, |
| 1921 | error->pinned_bo_count, |
Chris Wilson | 6c085a7 | 2012-08-20 11:40:46 +0200 | [diff] [blame] | 1922 | &dev_priv->mm.bound_list); |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1923 | |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1924 | do_gettimeofday(&error->time); |
| 1925 | |
Chris Wilson | 6ef3d42 | 2010-08-04 20:26:07 +0100 | [diff] [blame] | 1926 | error->overlay = intel_overlay_capture_error_state(dev); |
Chris Wilson | c4a1d9e | 2010-11-21 13:12:35 +0000 | [diff] [blame] | 1927 | error->display = intel_display_capture_error_state(dev); |
Chris Wilson | 6ef3d42 | 2010-08-04 20:26:07 +0100 | [diff] [blame] | 1928 | |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 1929 | spin_lock_irqsave(&dev_priv->gpu_error.lock, flags); |
| 1930 | if (dev_priv->gpu_error.first_error == NULL) { |
| 1931 | dev_priv->gpu_error.first_error = error; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1932 | error = NULL; |
| 1933 | } |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 1934 | spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1935 | |
| 1936 | if (error) |
Daniel Vetter | 742cbee | 2012-04-27 15:17:39 +0200 | [diff] [blame] | 1937 | i915_error_state_free(&error->ref); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1938 | } |
| 1939 | |
| 1940 | void i915_destroy_error_state(struct drm_device *dev) |
| 1941 | { |
| 1942 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1943 | struct drm_i915_error_state *error; |
Ben Widawsky | 6dc0e81 | 2012-01-23 15:30:02 -0800 | [diff] [blame] | 1944 | unsigned long flags; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1945 | |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 1946 | spin_lock_irqsave(&dev_priv->gpu_error.lock, flags); |
| 1947 | error = dev_priv->gpu_error.first_error; |
| 1948 | dev_priv->gpu_error.first_error = NULL; |
| 1949 | spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1950 | |
| 1951 | if (error) |
Daniel Vetter | 742cbee | 2012-04-27 15:17:39 +0200 | [diff] [blame] | 1952 | kref_put(&error->ref, i915_error_state_free); |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1953 | } |
Chris Wilson | 3bd3c93 | 2010-08-19 08:19:30 +0100 | [diff] [blame] | 1954 | #else |
| 1955 | #define i915_capture_error_state(x) |
| 1956 | #endif |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1957 | |
Chris Wilson | 35aed2e | 2010-05-27 13:18:12 +0100 | [diff] [blame] | 1958 | static void i915_report_and_clear_eir(struct drm_device *dev) |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1959 | { |
| 1960 | struct drm_i915_private *dev_priv = dev->dev_private; |
Ben Widawsky | bd9854f | 2012-08-23 15:18:09 -0700 | [diff] [blame] | 1961 | uint32_t instdone[I915_NUM_INSTDONE_REG]; |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1962 | u32 eir = I915_READ(EIR); |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1963 | int pipe, i; |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1964 | |
Chris Wilson | 35aed2e | 2010-05-27 13:18:12 +0100 | [diff] [blame] | 1965 | if (!eir) |
| 1966 | return; |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1967 | |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1968 | pr_err("render error detected, EIR: 0x%08x\n", eir); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1969 | |
Ben Widawsky | bd9854f | 2012-08-23 15:18:09 -0700 | [diff] [blame] | 1970 | i915_get_extra_instdone(dev, instdone); |
| 1971 | |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1972 | if (IS_G4X(dev)) { |
| 1973 | if (eir & (GM45_ERROR_MEM_PRIV | GM45_ERROR_CP_PRIV)) { |
| 1974 | u32 ipeir = I915_READ(IPEIR_I965); |
| 1975 | |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1976 | pr_err(" IPEIR: 0x%08x\n", I915_READ(IPEIR_I965)); |
| 1977 | pr_err(" IPEHR: 0x%08x\n", I915_READ(IPEHR_I965)); |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1978 | for (i = 0; i < ARRAY_SIZE(instdone); i++) |
| 1979 | pr_err(" INSTDONE_%d: 0x%08x\n", i, instdone[i]); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1980 | pr_err(" INSTPS: 0x%08x\n", I915_READ(INSTPS)); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1981 | pr_err(" ACTHD: 0x%08x\n", I915_READ(ACTHD_I965)); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1982 | I915_WRITE(IPEIR_I965, ipeir); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1983 | POSTING_READ(IPEIR_I965); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1984 | } |
| 1985 | if (eir & GM45_ERROR_PAGE_TABLE) { |
| 1986 | u32 pgtbl_err = I915_READ(PGTBL_ER); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1987 | pr_err("page table error\n"); |
| 1988 | pr_err(" PGTBL_ER: 0x%08x\n", pgtbl_err); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1989 | I915_WRITE(PGTBL_ER, pgtbl_err); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1990 | POSTING_READ(PGTBL_ER); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1991 | } |
| 1992 | } |
| 1993 | |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 1994 | if (!IS_GEN2(dev)) { |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1995 | if (eir & I915_ERROR_PAGE_TABLE) { |
| 1996 | u32 pgtbl_err = I915_READ(PGTBL_ER); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1997 | pr_err("page table error\n"); |
| 1998 | pr_err(" PGTBL_ER: 0x%08x\n", pgtbl_err); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1999 | I915_WRITE(PGTBL_ER, pgtbl_err); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 2000 | POSTING_READ(PGTBL_ER); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 2001 | } |
| 2002 | } |
| 2003 | |
| 2004 | if (eir & I915_ERROR_MEMORY_REFRESH) { |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 2005 | pr_err("memory refresh error:\n"); |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 2006 | for_each_pipe(pipe) |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 2007 | pr_err("pipe %c stat: 0x%08x\n", |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 2008 | pipe_name(pipe), I915_READ(PIPESTAT(pipe))); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 2009 | /* pipestat has already been acked */ |
| 2010 | } |
| 2011 | if (eir & I915_ERROR_INSTRUCTION) { |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 2012 | pr_err("instruction error\n"); |
| 2013 | pr_err(" INSTPM: 0x%08x\n", I915_READ(INSTPM)); |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 2014 | for (i = 0; i < ARRAY_SIZE(instdone); i++) |
| 2015 | pr_err(" INSTDONE_%d: 0x%08x\n", i, instdone[i]); |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 2016 | if (INTEL_INFO(dev)->gen < 4) { |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 2017 | u32 ipeir = I915_READ(IPEIR); |
| 2018 | |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 2019 | pr_err(" IPEIR: 0x%08x\n", I915_READ(IPEIR)); |
| 2020 | pr_err(" IPEHR: 0x%08x\n", I915_READ(IPEHR)); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 2021 | pr_err(" ACTHD: 0x%08x\n", I915_READ(ACTHD)); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 2022 | I915_WRITE(IPEIR, ipeir); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 2023 | POSTING_READ(IPEIR); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 2024 | } else { |
| 2025 | u32 ipeir = I915_READ(IPEIR_I965); |
| 2026 | |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 2027 | pr_err(" IPEIR: 0x%08x\n", I915_READ(IPEIR_I965)); |
| 2028 | pr_err(" IPEHR: 0x%08x\n", I915_READ(IPEHR_I965)); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 2029 | pr_err(" INSTPS: 0x%08x\n", I915_READ(INSTPS)); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 2030 | pr_err(" ACTHD: 0x%08x\n", I915_READ(ACTHD_I965)); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 2031 | I915_WRITE(IPEIR_I965, ipeir); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 2032 | POSTING_READ(IPEIR_I965); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 2033 | } |
| 2034 | } |
| 2035 | |
| 2036 | I915_WRITE(EIR, eir); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 2037 | POSTING_READ(EIR); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 2038 | eir = I915_READ(EIR); |
| 2039 | if (eir) { |
| 2040 | /* |
| 2041 | * some errors might have become stuck, |
| 2042 | * mask them. |
| 2043 | */ |
| 2044 | DRM_ERROR("EIR stuck: 0x%08x, masking\n", eir); |
| 2045 | I915_WRITE(EMR, I915_READ(EMR) | eir); |
| 2046 | I915_WRITE(IIR, I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT); |
| 2047 | } |
Chris Wilson | 35aed2e | 2010-05-27 13:18:12 +0100 | [diff] [blame] | 2048 | } |
| 2049 | |
| 2050 | /** |
| 2051 | * i915_handle_error - handle an error interrupt |
| 2052 | * @dev: drm device |
| 2053 | * |
| 2054 | * Do some basic checking of regsiter state at error interrupt time and |
| 2055 | * dump it to the syslog. Also call i915_capture_error_state() to make |
| 2056 | * sure we get a record and make it available in debugfs. Fire a uevent |
| 2057 | * so userspace knows something bad happened (should trigger collection |
| 2058 | * of a ring dump etc.). |
| 2059 | */ |
Chris Wilson | 527f9e9 | 2010-11-11 01:16:58 +0000 | [diff] [blame] | 2060 | void i915_handle_error(struct drm_device *dev, bool wedged) |
Chris Wilson | 35aed2e | 2010-05-27 13:18:12 +0100 | [diff] [blame] | 2061 | { |
| 2062 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 2063 | struct intel_ring_buffer *ring; |
| 2064 | int i; |
Chris Wilson | 35aed2e | 2010-05-27 13:18:12 +0100 | [diff] [blame] | 2065 | |
| 2066 | i915_capture_error_state(dev); |
| 2067 | i915_report_and_clear_eir(dev); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 2068 | |
Ben Gamari | ba1234d | 2009-09-14 17:48:47 -0400 | [diff] [blame] | 2069 | if (wedged) { |
Daniel Vetter | f69061b | 2012-12-06 09:01:42 +0100 | [diff] [blame] | 2070 | atomic_set_mask(I915_RESET_IN_PROGRESS_FLAG, |
| 2071 | &dev_priv->gpu_error.reset_counter); |
Ben Gamari | ba1234d | 2009-09-14 17:48:47 -0400 | [diff] [blame] | 2072 | |
Ben Gamari | 11ed50e | 2009-09-14 17:48:45 -0400 | [diff] [blame] | 2073 | /* |
Daniel Vetter | 1f83fee | 2012-11-15 17:17:22 +0100 | [diff] [blame] | 2074 | * Wakeup waiting processes so that the reset work item |
| 2075 | * doesn't deadlock trying to grab various locks. |
Ben Gamari | 11ed50e | 2009-09-14 17:48:45 -0400 | [diff] [blame] | 2076 | */ |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 2077 | for_each_ring(ring, dev_priv, i) |
| 2078 | wake_up_all(&ring->irq_queue); |
Ben Gamari | 11ed50e | 2009-09-14 17:48:45 -0400 | [diff] [blame] | 2079 | } |
| 2080 | |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 2081 | queue_work(dev_priv->wq, &dev_priv->gpu_error.work); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 2082 | } |
| 2083 | |
Ville Syrjälä | 21ad833 | 2013-02-19 15:16:39 +0200 | [diff] [blame] | 2084 | static void __always_unused i915_pageflip_stall_check(struct drm_device *dev, int pipe) |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 2085 | { |
| 2086 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 2087 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
| 2088 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 2089 | struct drm_i915_gem_object *obj; |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 2090 | struct intel_unpin_work *work; |
| 2091 | unsigned long flags; |
| 2092 | bool stall_detected; |
| 2093 | |
| 2094 | /* Ignore early vblank irqs */ |
| 2095 | if (intel_crtc == NULL) |
| 2096 | return; |
| 2097 | |
| 2098 | spin_lock_irqsave(&dev->event_lock, flags); |
| 2099 | work = intel_crtc->unpin_work; |
| 2100 | |
Chris Wilson | e7d841c | 2012-12-03 11:36:30 +0000 | [diff] [blame] | 2101 | if (work == NULL || |
| 2102 | atomic_read(&work->pending) >= INTEL_FLIP_COMPLETE || |
| 2103 | !work->enable_stall_check) { |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 2104 | /* Either the pending flip IRQ arrived, or we're too early. Don't check */ |
| 2105 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 2106 | return; |
| 2107 | } |
| 2108 | |
| 2109 | /* Potential stall - if we see that the flip has happened, assume a missed interrupt */ |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 2110 | obj = work->pending_flip_obj; |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 2111 | if (INTEL_INFO(dev)->gen >= 4) { |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 2112 | int dspsurf = DSPSURF(intel_crtc->plane); |
Armin Reese | 446f254 | 2012-03-30 16:20:16 -0700 | [diff] [blame] | 2113 | stall_detected = I915_HI_DISPBASE(I915_READ(dspsurf)) == |
| 2114 | obj->gtt_offset; |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 2115 | } else { |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 2116 | int dspaddr = DSPADDR(intel_crtc->plane); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 2117 | stall_detected = I915_READ(dspaddr) == (obj->gtt_offset + |
Ville Syrjälä | 01f2c77 | 2011-12-20 00:06:49 +0200 | [diff] [blame] | 2118 | crtc->y * crtc->fb->pitches[0] + |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 2119 | crtc->x * crtc->fb->bits_per_pixel/8); |
| 2120 | } |
| 2121 | |
| 2122 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 2123 | |
| 2124 | if (stall_detected) { |
| 2125 | DRM_DEBUG_DRIVER("Pageflip stall detected\n"); |
| 2126 | intel_prepare_page_flip(dev, intel_crtc->plane); |
| 2127 | } |
| 2128 | } |
| 2129 | |
Keith Packard | 42f52ef | 2008-10-18 19:39:29 -0700 | [diff] [blame] | 2130 | /* Called from drm generic code, passed 'crtc' which |
| 2131 | * we use as a pipe index |
| 2132 | */ |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2133 | static int i915_enable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 2134 | { |
| 2135 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Keith Packard | e9d21d7 | 2008-10-16 11:31:38 -0700 | [diff] [blame] | 2136 | unsigned long irqflags; |
Jesse Barnes | 71e0ffa | 2009-01-08 10:42:15 -0800 | [diff] [blame] | 2137 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 2138 | if (!i915_pipe_enabled(dev, pipe)) |
Jesse Barnes | 71e0ffa | 2009-01-08 10:42:15 -0800 | [diff] [blame] | 2139 | return -EINVAL; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 2140 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2141 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Jesse Barnes | f796cf8 | 2011-04-07 13:58:17 -0700 | [diff] [blame] | 2142 | if (INTEL_INFO(dev)->gen >= 4) |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 2143 | i915_enable_pipestat(dev_priv, pipe, |
| 2144 | PIPE_START_VBLANK_INTERRUPT_ENABLE); |
Keith Packard | e9d21d7 | 2008-10-16 11:31:38 -0700 | [diff] [blame] | 2145 | else |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 2146 | i915_enable_pipestat(dev_priv, pipe, |
| 2147 | PIPE_VBLANK_INTERRUPT_ENABLE); |
Chris Wilson | 8692d00e | 2011-02-05 10:08:21 +0000 | [diff] [blame] | 2148 | |
| 2149 | /* maintain vblank delivery even in deep C-states */ |
| 2150 | if (dev_priv->info->gen == 3) |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 2151 | I915_WRITE(INSTPM, _MASKED_BIT_DISABLE(INSTPM_AGPBUSY_DIS)); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2152 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
Chris Wilson | 8692d00e | 2011-02-05 10:08:21 +0000 | [diff] [blame] | 2153 | |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 2154 | return 0; |
| 2155 | } |
| 2156 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2157 | static int ironlake_enable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | f796cf8 | 2011-04-07 13:58:17 -0700 | [diff] [blame] | 2158 | { |
| 2159 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2160 | unsigned long irqflags; |
| 2161 | |
| 2162 | if (!i915_pipe_enabled(dev, pipe)) |
| 2163 | return -EINVAL; |
| 2164 | |
| 2165 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 2166 | ironlake_enable_display_irq(dev_priv, (pipe == 0) ? |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 2167 | DE_PIPEA_VBLANK : DE_PIPEB_VBLANK); |
Jesse Barnes | f796cf8 | 2011-04-07 13:58:17 -0700 | [diff] [blame] | 2168 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 2169 | |
| 2170 | return 0; |
| 2171 | } |
| 2172 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2173 | static int ivybridge_enable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2174 | { |
| 2175 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2176 | unsigned long irqflags; |
| 2177 | |
| 2178 | if (!i915_pipe_enabled(dev, pipe)) |
| 2179 | return -EINVAL; |
| 2180 | |
| 2181 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Chris Wilson | b615b57 | 2012-05-02 09:52:12 +0100 | [diff] [blame] | 2182 | ironlake_enable_display_irq(dev_priv, |
| 2183 | DE_PIPEA_VBLANK_IVB << (5 * pipe)); |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2184 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 2185 | |
| 2186 | return 0; |
| 2187 | } |
| 2188 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2189 | static int valleyview_enable_vblank(struct drm_device *dev, int pipe) |
| 2190 | { |
| 2191 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2192 | unsigned long irqflags; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2193 | u32 imr; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2194 | |
| 2195 | if (!i915_pipe_enabled(dev, pipe)) |
| 2196 | return -EINVAL; |
| 2197 | |
| 2198 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2199 | imr = I915_READ(VLV_IMR); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2200 | if (pipe == 0) |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2201 | imr &= ~I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2202 | else |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2203 | imr &= ~I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2204 | I915_WRITE(VLV_IMR, imr); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2205 | i915_enable_pipestat(dev_priv, pipe, |
| 2206 | PIPE_START_VBLANK_INTERRUPT_ENABLE); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2207 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 2208 | |
| 2209 | return 0; |
| 2210 | } |
| 2211 | |
Keith Packard | 42f52ef | 2008-10-18 19:39:29 -0700 | [diff] [blame] | 2212 | /* Called from drm generic code, passed 'crtc' which |
| 2213 | * we use as a pipe index |
| 2214 | */ |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2215 | static void i915_disable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 2216 | { |
| 2217 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Keith Packard | e9d21d7 | 2008-10-16 11:31:38 -0700 | [diff] [blame] | 2218 | unsigned long irqflags; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 2219 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2220 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Chris Wilson | 8692d00e | 2011-02-05 10:08:21 +0000 | [diff] [blame] | 2221 | if (dev_priv->info->gen == 3) |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 2222 | I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_AGPBUSY_DIS)); |
Chris Wilson | 8692d00e | 2011-02-05 10:08:21 +0000 | [diff] [blame] | 2223 | |
Jesse Barnes | f796cf8 | 2011-04-07 13:58:17 -0700 | [diff] [blame] | 2224 | i915_disable_pipestat(dev_priv, pipe, |
| 2225 | PIPE_VBLANK_INTERRUPT_ENABLE | |
| 2226 | PIPE_START_VBLANK_INTERRUPT_ENABLE); |
| 2227 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 2228 | } |
| 2229 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2230 | static void ironlake_disable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | f796cf8 | 2011-04-07 13:58:17 -0700 | [diff] [blame] | 2231 | { |
| 2232 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2233 | unsigned long irqflags; |
| 2234 | |
| 2235 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 2236 | ironlake_disable_display_irq(dev_priv, (pipe == 0) ? |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 2237 | DE_PIPEA_VBLANK : DE_PIPEB_VBLANK); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2238 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 2239 | } |
| 2240 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2241 | static void ivybridge_disable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2242 | { |
| 2243 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2244 | unsigned long irqflags; |
| 2245 | |
| 2246 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Chris Wilson | b615b57 | 2012-05-02 09:52:12 +0100 | [diff] [blame] | 2247 | ironlake_disable_display_irq(dev_priv, |
| 2248 | DE_PIPEA_VBLANK_IVB << (pipe * 5)); |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2249 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 2250 | } |
| 2251 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2252 | static void valleyview_disable_vblank(struct drm_device *dev, int pipe) |
| 2253 | { |
| 2254 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2255 | unsigned long irqflags; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2256 | u32 imr; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2257 | |
| 2258 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2259 | i915_disable_pipestat(dev_priv, pipe, |
| 2260 | PIPE_START_VBLANK_INTERRUPT_ENABLE); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2261 | imr = I915_READ(VLV_IMR); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2262 | if (pipe == 0) |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2263 | imr |= I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2264 | else |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2265 | imr |= I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2266 | I915_WRITE(VLV_IMR, imr); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2267 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 2268 | } |
| 2269 | |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 2270 | static u32 |
| 2271 | ring_last_seqno(struct intel_ring_buffer *ring) |
Zou Nan hai | 852835f | 2010-05-21 09:08:56 +0800 | [diff] [blame] | 2272 | { |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 2273 | return list_entry(ring->request_list.prev, |
| 2274 | struct drm_i915_gem_request, list)->seqno; |
| 2275 | } |
| 2276 | |
| 2277 | static bool i915_hangcheck_ring_idle(struct intel_ring_buffer *ring, bool *err) |
| 2278 | { |
| 2279 | if (list_empty(&ring->request_list) || |
Chris Wilson | b2eadbc | 2012-08-09 10:58:30 +0100 | [diff] [blame] | 2280 | i915_seqno_passed(ring->get_seqno(ring, false), |
| 2281 | ring_last_seqno(ring))) { |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 2282 | /* Issue a wake-up to catch stuck h/w. */ |
Ben Widawsky | 9574b3f | 2012-04-26 16:03:01 -0700 | [diff] [blame] | 2283 | if (waitqueue_active(&ring->irq_queue)) { |
| 2284 | DRM_ERROR("Hangcheck timer elapsed... %s idle\n", |
| 2285 | ring->name); |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 2286 | wake_up_all(&ring->irq_queue); |
| 2287 | *err = true; |
| 2288 | } |
| 2289 | return true; |
| 2290 | } |
| 2291 | return false; |
Ben Gamari | f65d942 | 2009-09-14 17:48:44 -0400 | [diff] [blame] | 2292 | } |
| 2293 | |
Chris Wilson | a24a11e | 2013-03-14 17:52:05 +0200 | [diff] [blame] | 2294 | static bool semaphore_passed(struct intel_ring_buffer *ring) |
| 2295 | { |
| 2296 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
| 2297 | u32 acthd = intel_ring_get_active_head(ring) & HEAD_ADDR; |
| 2298 | struct intel_ring_buffer *signaller; |
| 2299 | u32 cmd, ipehr, acthd_min; |
| 2300 | |
| 2301 | ipehr = I915_READ(RING_IPEHR(ring->mmio_base)); |
| 2302 | if ((ipehr & ~(0x3 << 16)) != |
| 2303 | (MI_SEMAPHORE_MBOX | MI_SEMAPHORE_COMPARE | MI_SEMAPHORE_REGISTER)) |
| 2304 | return false; |
| 2305 | |
| 2306 | /* ACTHD is likely pointing to the dword after the actual command, |
| 2307 | * so scan backwards until we find the MBOX. |
| 2308 | */ |
| 2309 | acthd_min = max((int)acthd - 3 * 4, 0); |
| 2310 | do { |
| 2311 | cmd = ioread32(ring->virtual_start + acthd); |
| 2312 | if (cmd == ipehr) |
| 2313 | break; |
| 2314 | |
| 2315 | acthd -= 4; |
| 2316 | if (acthd < acthd_min) |
| 2317 | return false; |
| 2318 | } while (1); |
| 2319 | |
| 2320 | signaller = &dev_priv->ring[(ring->id + (((ipehr >> 17) & 1) + 1)) % 3]; |
| 2321 | return i915_seqno_passed(signaller->get_seqno(signaller, false), |
| 2322 | ioread32(ring->virtual_start+acthd+4)+1); |
| 2323 | } |
| 2324 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2325 | static bool kick_ring(struct intel_ring_buffer *ring) |
| 2326 | { |
| 2327 | struct drm_device *dev = ring->dev; |
| 2328 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2329 | u32 tmp = I915_READ_CTL(ring); |
| 2330 | if (tmp & RING_WAIT) { |
| 2331 | DRM_ERROR("Kicking stuck wait on %s\n", |
| 2332 | ring->name); |
| 2333 | I915_WRITE_CTL(ring, tmp); |
| 2334 | return true; |
| 2335 | } |
Chris Wilson | a24a11e | 2013-03-14 17:52:05 +0200 | [diff] [blame] | 2336 | |
| 2337 | if (INTEL_INFO(dev)->gen >= 6 && |
| 2338 | tmp & RING_WAIT_SEMAPHORE && |
| 2339 | semaphore_passed(ring)) { |
| 2340 | DRM_ERROR("Kicking stuck semaphore on %s\n", |
| 2341 | ring->name); |
| 2342 | I915_WRITE_CTL(ring, tmp); |
| 2343 | return true; |
| 2344 | } |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2345 | return false; |
| 2346 | } |
| 2347 | |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 2348 | static bool i915_hangcheck_hung(struct drm_device *dev) |
| 2349 | { |
| 2350 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 2351 | |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 2352 | if (dev_priv->gpu_error.hangcheck_count++ > 1) { |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 2353 | bool hung = true; |
| 2354 | |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 2355 | DRM_ERROR("Hangcheck timer elapsed... GPU hung\n"); |
| 2356 | i915_handle_error(dev, true); |
| 2357 | |
| 2358 | if (!IS_GEN2(dev)) { |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 2359 | struct intel_ring_buffer *ring; |
| 2360 | int i; |
| 2361 | |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 2362 | /* Is the chip hanging on a WAIT_FOR_EVENT? |
| 2363 | * If so we can simply poke the RB_WAIT bit |
| 2364 | * and break the hang. This should work on |
| 2365 | * all but the second generation chipsets. |
| 2366 | */ |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 2367 | for_each_ring(ring, dev_priv, i) |
| 2368 | hung &= !kick_ring(ring); |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 2369 | } |
| 2370 | |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 2371 | return hung; |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 2372 | } |
| 2373 | |
| 2374 | return false; |
| 2375 | } |
| 2376 | |
Ben Gamari | f65d942 | 2009-09-14 17:48:44 -0400 | [diff] [blame] | 2377 | /** |
| 2378 | * This is called when the chip hasn't reported back with completed |
| 2379 | * batchbuffers in a long time. The first time this is called we simply record |
| 2380 | * ACTHD. If ACTHD hasn't changed by the time the hangcheck timer elapses |
| 2381 | * again, we assume the chip is wedged and try to fix it. |
| 2382 | */ |
| 2383 | void i915_hangcheck_elapsed(unsigned long data) |
| 2384 | { |
| 2385 | struct drm_device *dev = (struct drm_device *)data; |
| 2386 | drm_i915_private_t *dev_priv = dev->dev_private; |
Ben Widawsky | bd9854f | 2012-08-23 15:18:09 -0700 | [diff] [blame] | 2387 | uint32_t acthd[I915_NUM_RINGS], instdone[I915_NUM_INSTDONE_REG]; |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 2388 | struct intel_ring_buffer *ring; |
| 2389 | bool err = false, idle; |
| 2390 | int i; |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 2391 | |
Ben Widawsky | 3e0dc6b | 2011-06-29 10:26:42 -0700 | [diff] [blame] | 2392 | if (!i915_enable_hangcheck) |
| 2393 | return; |
| 2394 | |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 2395 | memset(acthd, 0, sizeof(acthd)); |
| 2396 | idle = true; |
| 2397 | for_each_ring(ring, dev_priv, i) { |
| 2398 | idle &= i915_hangcheck_ring_idle(ring, &err); |
| 2399 | acthd[i] = intel_ring_get_active_head(ring); |
| 2400 | } |
| 2401 | |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 2402 | /* If all work is done then ACTHD clearly hasn't advanced. */ |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 2403 | if (idle) { |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 2404 | if (err) { |
| 2405 | if (i915_hangcheck_hung(dev)) |
| 2406 | return; |
| 2407 | |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 2408 | goto repeat; |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 2409 | } |
| 2410 | |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 2411 | dev_priv->gpu_error.hangcheck_count = 0; |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 2412 | return; |
| 2413 | } |
Eric Anholt | b9201c1 | 2010-01-08 14:25:16 -0800 | [diff] [blame] | 2414 | |
Ben Widawsky | bd9854f | 2012-08-23 15:18:09 -0700 | [diff] [blame] | 2415 | i915_get_extra_instdone(dev, instdone); |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 2416 | if (memcmp(dev_priv->gpu_error.last_acthd, acthd, |
| 2417 | sizeof(acthd)) == 0 && |
| 2418 | memcmp(dev_priv->gpu_error.prev_instdone, instdone, |
| 2419 | sizeof(instdone)) == 0) { |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 2420 | if (i915_hangcheck_hung(dev)) |
Chris Wilson | cbb465e | 2010-06-06 12:16:24 +0100 | [diff] [blame] | 2421 | return; |
Chris Wilson | cbb465e | 2010-06-06 12:16:24 +0100 | [diff] [blame] | 2422 | } else { |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 2423 | dev_priv->gpu_error.hangcheck_count = 0; |
Chris Wilson | cbb465e | 2010-06-06 12:16:24 +0100 | [diff] [blame] | 2424 | |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 2425 | memcpy(dev_priv->gpu_error.last_acthd, acthd, |
| 2426 | sizeof(acthd)); |
| 2427 | memcpy(dev_priv->gpu_error.prev_instdone, instdone, |
| 2428 | sizeof(instdone)); |
Chris Wilson | cbb465e | 2010-06-06 12:16:24 +0100 | [diff] [blame] | 2429 | } |
Ben Gamari | f65d942 | 2009-09-14 17:48:44 -0400 | [diff] [blame] | 2430 | |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 2431 | repeat: |
Ben Gamari | f65d942 | 2009-09-14 17:48:44 -0400 | [diff] [blame] | 2432 | /* Reset timer case chip hangs without another request being added */ |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 2433 | mod_timer(&dev_priv->gpu_error.hangcheck_timer, |
Chris Wilson | cecc21f | 2012-10-05 17:02:56 +0100 | [diff] [blame] | 2434 | round_jiffies_up(jiffies + DRM_I915_HANGCHECK_JIFFIES)); |
Ben Gamari | f65d942 | 2009-09-14 17:48:44 -0400 | [diff] [blame] | 2435 | } |
| 2436 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2437 | /* drm_dma.h hooks |
| 2438 | */ |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2439 | static void ironlake_irq_preinstall(struct drm_device *dev) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2440 | { |
| 2441 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2442 | |
Jesse Barnes | 4697995 | 2011-04-07 13:53:55 -0700 | [diff] [blame] | 2443 | atomic_set(&dev_priv->irq_received, 0); |
| 2444 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2445 | I915_WRITE(HWSTAM, 0xeffe); |
Daniel Vetter | bdfcdb6 | 2012-01-05 01:05:26 +0100 | [diff] [blame] | 2446 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2447 | /* XXX hotplug from PCH */ |
| 2448 | |
| 2449 | I915_WRITE(DEIMR, 0xffffffff); |
| 2450 | I915_WRITE(DEIER, 0x0); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 2451 | POSTING_READ(DEIER); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2452 | |
| 2453 | /* and GT */ |
| 2454 | I915_WRITE(GTIMR, 0xffffffff); |
| 2455 | I915_WRITE(GTIER, 0x0); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 2456 | POSTING_READ(GTIER); |
Zhenyu Wang | c650156 | 2009-11-03 18:57:21 +0000 | [diff] [blame] | 2457 | |
Ben Widawsky | ab5c608 | 2013-04-05 13:12:41 -0700 | [diff] [blame] | 2458 | if (HAS_PCH_NOP(dev)) |
| 2459 | return; |
| 2460 | |
Zhenyu Wang | c650156 | 2009-11-03 18:57:21 +0000 | [diff] [blame] | 2461 | /* south display irq */ |
| 2462 | I915_WRITE(SDEIMR, 0xffffffff); |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 2463 | /* |
| 2464 | * SDEIER is also touched by the interrupt handler to work around missed |
| 2465 | * PCH interrupts. Hence we can't update it after the interrupt handler |
| 2466 | * is enabled - instead we unconditionally enable all PCH interrupt |
| 2467 | * sources here, but then only unmask them as needed with SDEIMR. |
| 2468 | */ |
| 2469 | I915_WRITE(SDEIER, 0xffffffff); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 2470 | POSTING_READ(SDEIER); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2471 | } |
| 2472 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2473 | static void valleyview_irq_preinstall(struct drm_device *dev) |
| 2474 | { |
| 2475 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2476 | int pipe; |
| 2477 | |
| 2478 | atomic_set(&dev_priv->irq_received, 0); |
| 2479 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2480 | /* VLV magic */ |
| 2481 | I915_WRITE(VLV_IMR, 0); |
| 2482 | I915_WRITE(RING_IMR(RENDER_RING_BASE), 0); |
| 2483 | I915_WRITE(RING_IMR(GEN6_BSD_RING_BASE), 0); |
| 2484 | I915_WRITE(RING_IMR(BLT_RING_BASE), 0); |
| 2485 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2486 | /* and GT */ |
| 2487 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
| 2488 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
| 2489 | I915_WRITE(GTIMR, 0xffffffff); |
| 2490 | I915_WRITE(GTIER, 0x0); |
| 2491 | POSTING_READ(GTIER); |
| 2492 | |
| 2493 | I915_WRITE(DPINVGTT, 0xff); |
| 2494 | |
| 2495 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 2496 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
| 2497 | for_each_pipe(pipe) |
| 2498 | I915_WRITE(PIPESTAT(pipe), 0xffff); |
| 2499 | I915_WRITE(VLV_IIR, 0xffffffff); |
| 2500 | I915_WRITE(VLV_IMR, 0xffffffff); |
| 2501 | I915_WRITE(VLV_IER, 0x0); |
| 2502 | POSTING_READ(VLV_IER); |
| 2503 | } |
| 2504 | |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 2505 | static void ibx_hpd_irq_setup(struct drm_device *dev) |
Keith Packard | 7fe0b97 | 2011-09-19 13:31:02 -0700 | [diff] [blame] | 2506 | { |
| 2507 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 2508 | struct drm_mode_config *mode_config = &dev->mode_config; |
| 2509 | struct intel_encoder *intel_encoder; |
| 2510 | u32 mask = ~I915_READ(SDEIMR); |
| 2511 | u32 hotplug; |
Keith Packard | 7fe0b97 | 2011-09-19 13:31:02 -0700 | [diff] [blame] | 2512 | |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 2513 | if (HAS_PCH_IBX(dev)) { |
Egbert Eich | 995e6b3 | 2013-04-16 13:36:56 +0200 | [diff] [blame] | 2514 | mask &= ~SDE_HOTPLUG_MASK; |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 2515 | list_for_each_entry(intel_encoder, &mode_config->encoder_list, base.head) |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 2516 | if (dev_priv->hpd_stats[intel_encoder->hpd_pin].hpd_mark == HPD_ENABLED) |
| 2517 | mask |= hpd_ibx[intel_encoder->hpd_pin]; |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 2518 | } else { |
Egbert Eich | 995e6b3 | 2013-04-16 13:36:56 +0200 | [diff] [blame] | 2519 | mask &= ~SDE_HOTPLUG_MASK_CPT; |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 2520 | list_for_each_entry(intel_encoder, &mode_config->encoder_list, base.head) |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 2521 | if (dev_priv->hpd_stats[intel_encoder->hpd_pin].hpd_mark == HPD_ENABLED) |
| 2522 | mask |= hpd_cpt[intel_encoder->hpd_pin]; |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 2523 | } |
| 2524 | |
| 2525 | I915_WRITE(SDEIMR, ~mask); |
| 2526 | |
| 2527 | /* |
| 2528 | * Enable digital hotplug on the PCH, and configure the DP short pulse |
| 2529 | * duration to 2ms (which is the minimum in the Display Port spec) |
| 2530 | * |
| 2531 | * This register is the same on all known PCH chips. |
| 2532 | */ |
Keith Packard | 7fe0b97 | 2011-09-19 13:31:02 -0700 | [diff] [blame] | 2533 | hotplug = I915_READ(PCH_PORT_HOTPLUG); |
| 2534 | hotplug &= ~(PORTD_PULSE_DURATION_MASK|PORTC_PULSE_DURATION_MASK|PORTB_PULSE_DURATION_MASK); |
| 2535 | hotplug |= PORTD_HOTPLUG_ENABLE | PORTD_PULSE_DURATION_2ms; |
| 2536 | hotplug |= PORTC_HOTPLUG_ENABLE | PORTC_PULSE_DURATION_2ms; |
| 2537 | hotplug |= PORTB_HOTPLUG_ENABLE | PORTB_PULSE_DURATION_2ms; |
| 2538 | I915_WRITE(PCH_PORT_HOTPLUG, hotplug); |
| 2539 | } |
| 2540 | |
Paulo Zanoni | d46da43 | 2013-02-08 17:35:15 -0200 | [diff] [blame] | 2541 | static void ibx_irq_postinstall(struct drm_device *dev) |
| 2542 | { |
| 2543 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 2544 | u32 mask; |
Paulo Zanoni | d46da43 | 2013-02-08 17:35:15 -0200 | [diff] [blame] | 2545 | |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 2546 | if (HAS_PCH_IBX(dev)) { |
| 2547 | mask = SDE_GMBUS | SDE_AUX_MASK | SDE_TRANSB_FIFO_UNDER | |
Paulo Zanoni | de032bf | 2013-04-12 17:57:58 -0300 | [diff] [blame] | 2548 | SDE_TRANSA_FIFO_UNDER | SDE_POISON; |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 2549 | } else { |
| 2550 | mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT | SDE_ERROR_CPT; |
| 2551 | |
| 2552 | I915_WRITE(SERR_INT, I915_READ(SERR_INT)); |
| 2553 | } |
Ben Widawsky | ab5c608 | 2013-04-05 13:12:41 -0700 | [diff] [blame] | 2554 | |
| 2555 | if (HAS_PCH_NOP(dev)) |
| 2556 | return; |
| 2557 | |
Paulo Zanoni | d46da43 | 2013-02-08 17:35:15 -0200 | [diff] [blame] | 2558 | I915_WRITE(SDEIIR, I915_READ(SDEIIR)); |
| 2559 | I915_WRITE(SDEIMR, ~mask); |
Paulo Zanoni | d46da43 | 2013-02-08 17:35:15 -0200 | [diff] [blame] | 2560 | } |
| 2561 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2562 | static int ironlake_irq_postinstall(struct drm_device *dev) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2563 | { |
| 2564 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2565 | /* enable kind of interrupts always enabled */ |
Jesse Barnes | 013d5aa | 2010-01-29 11:18:31 -0800 | [diff] [blame] | 2566 | u32 display_mask = DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT | |
Daniel Vetter | ce99c25 | 2012-12-01 13:53:47 +0100 | [diff] [blame] | 2567 | DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE | |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 2568 | DE_AUX_CHANNEL_A | DE_PIPEB_FIFO_UNDERRUN | |
Paulo Zanoni | de032bf | 2013-04-12 17:57:58 -0300 | [diff] [blame] | 2569 | DE_PIPEA_FIFO_UNDERRUN | DE_POISON; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2570 | u32 render_irqs; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2571 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2572 | dev_priv->irq_mask = ~display_mask; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2573 | |
| 2574 | /* should always can generate irq */ |
| 2575 | I915_WRITE(DEIIR, I915_READ(DEIIR)); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2576 | I915_WRITE(DEIMR, dev_priv->irq_mask); |
| 2577 | I915_WRITE(DEIER, display_mask | DE_PIPEA_VBLANK | DE_PIPEB_VBLANK); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 2578 | POSTING_READ(DEIER); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2579 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2580 | dev_priv->gt_irq_mask = ~0; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2581 | |
| 2582 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2583 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 2584 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2585 | if (IS_GEN6(dev)) |
| 2586 | render_irqs = |
| 2587 | GT_USER_INTERRUPT | |
Ben Widawsky | e2a1e2f | 2012-03-29 19:11:26 -0700 | [diff] [blame] | 2588 | GEN6_BSD_USER_INTERRUPT | |
| 2589 | GEN6_BLITTER_USER_INTERRUPT; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2590 | else |
| 2591 | render_irqs = |
Chris Wilson | 88f23b8 | 2010-12-05 15:08:31 +0000 | [diff] [blame] | 2592 | GT_USER_INTERRUPT | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 2593 | GT_PIPE_NOTIFY | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2594 | GT_BSD_USER_INTERRUPT; |
| 2595 | I915_WRITE(GTIER, render_irqs); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 2596 | POSTING_READ(GTIER); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2597 | |
Paulo Zanoni | d46da43 | 2013-02-08 17:35:15 -0200 | [diff] [blame] | 2598 | ibx_irq_postinstall(dev); |
Keith Packard | 7fe0b97 | 2011-09-19 13:31:02 -0700 | [diff] [blame] | 2599 | |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 2600 | if (IS_IRONLAKE_M(dev)) { |
| 2601 | /* Clear & enable PCU event interrupts */ |
| 2602 | I915_WRITE(DEIIR, DE_PCU_EVENT); |
| 2603 | I915_WRITE(DEIER, I915_READ(DEIER) | DE_PCU_EVENT); |
| 2604 | ironlake_enable_display_irq(dev_priv, DE_PCU_EVENT); |
| 2605 | } |
| 2606 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2607 | return 0; |
| 2608 | } |
| 2609 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2610 | static int ivybridge_irq_postinstall(struct drm_device *dev) |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2611 | { |
| 2612 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2613 | /* enable kind of interrupts always enabled */ |
Chris Wilson | b615b57 | 2012-05-02 09:52:12 +0100 | [diff] [blame] | 2614 | u32 display_mask = |
| 2615 | DE_MASTER_IRQ_CONTROL | DE_GSE_IVB | DE_PCH_EVENT_IVB | |
| 2616 | DE_PLANEC_FLIP_DONE_IVB | |
| 2617 | DE_PLANEB_FLIP_DONE_IVB | |
Daniel Vetter | ce99c25 | 2012-12-01 13:53:47 +0100 | [diff] [blame] | 2618 | DE_PLANEA_FLIP_DONE_IVB | |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 2619 | DE_AUX_CHANNEL_A_IVB | |
| 2620 | DE_ERR_INT_IVB; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2621 | u32 render_irqs; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2622 | |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2623 | dev_priv->irq_mask = ~display_mask; |
| 2624 | |
| 2625 | /* should always can generate irq */ |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 2626 | I915_WRITE(GEN7_ERR_INT, I915_READ(GEN7_ERR_INT)); |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2627 | I915_WRITE(DEIIR, I915_READ(DEIIR)); |
| 2628 | I915_WRITE(DEIMR, dev_priv->irq_mask); |
Chris Wilson | b615b57 | 2012-05-02 09:52:12 +0100 | [diff] [blame] | 2629 | I915_WRITE(DEIER, |
| 2630 | display_mask | |
| 2631 | DE_PIPEC_VBLANK_IVB | |
| 2632 | DE_PIPEB_VBLANK_IVB | |
| 2633 | DE_PIPEA_VBLANK_IVB); |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2634 | POSTING_READ(DEIER); |
| 2635 | |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 2636 | dev_priv->gt_irq_mask = ~GT_GEN7_L3_PARITY_ERROR_INTERRUPT; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2637 | |
| 2638 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
| 2639 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 2640 | |
Ben Widawsky | e2a1e2f | 2012-03-29 19:11:26 -0700 | [diff] [blame] | 2641 | render_irqs = GT_USER_INTERRUPT | GEN6_BSD_USER_INTERRUPT | |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 2642 | GEN6_BLITTER_USER_INTERRUPT | GT_GEN7_L3_PARITY_ERROR_INTERRUPT; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2643 | I915_WRITE(GTIER, render_irqs); |
| 2644 | POSTING_READ(GTIER); |
| 2645 | |
Paulo Zanoni | d46da43 | 2013-02-08 17:35:15 -0200 | [diff] [blame] | 2646 | ibx_irq_postinstall(dev); |
Keith Packard | 7fe0b97 | 2011-09-19 13:31:02 -0700 | [diff] [blame] | 2647 | |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 2648 | return 0; |
| 2649 | } |
| 2650 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2651 | static int valleyview_irq_postinstall(struct drm_device *dev) |
| 2652 | { |
| 2653 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2654 | u32 enable_mask; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2655 | u32 pipestat_enable = PLANE_FLIP_DONE_INT_EN_VLV; |
Jesse Barnes | 3bcedbe | 2012-09-19 13:29:01 -0700 | [diff] [blame] | 2656 | u32 render_irqs; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2657 | |
| 2658 | enable_mask = I915_DISPLAY_PORT_INTERRUPT; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2659 | enable_mask |= I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 2660 | I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT | |
| 2661 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2662 | I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT; |
| 2663 | |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2664 | /* |
| 2665 | *Leave vblank interrupts masked initially. enable/disable will |
| 2666 | * toggle them based on usage. |
| 2667 | */ |
| 2668 | dev_priv->irq_mask = (~enable_mask) | |
| 2669 | I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT | |
| 2670 | I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2671 | |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 2672 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 2673 | POSTING_READ(PORT_HOTPLUG_EN); |
| 2674 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2675 | I915_WRITE(VLV_IMR, dev_priv->irq_mask); |
| 2676 | I915_WRITE(VLV_IER, enable_mask); |
| 2677 | I915_WRITE(VLV_IIR, 0xffffffff); |
| 2678 | I915_WRITE(PIPESTAT(0), 0xffff); |
| 2679 | I915_WRITE(PIPESTAT(1), 0xffff); |
| 2680 | POSTING_READ(VLV_IER); |
| 2681 | |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2682 | i915_enable_pipestat(dev_priv, 0, pipestat_enable); |
Daniel Vetter | 515ac2b | 2012-12-01 13:53:44 +0100 | [diff] [blame] | 2683 | i915_enable_pipestat(dev_priv, 0, PIPE_GMBUS_EVENT_ENABLE); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2684 | i915_enable_pipestat(dev_priv, 1, pipestat_enable); |
| 2685 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2686 | I915_WRITE(VLV_IIR, 0xffffffff); |
| 2687 | I915_WRITE(VLV_IIR, 0xffffffff); |
| 2688 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2689 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 2690 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
Jesse Barnes | 3bcedbe | 2012-09-19 13:29:01 -0700 | [diff] [blame] | 2691 | |
| 2692 | render_irqs = GT_USER_INTERRUPT | GEN6_BSD_USER_INTERRUPT | |
| 2693 | GEN6_BLITTER_USER_INTERRUPT; |
| 2694 | I915_WRITE(GTIER, render_irqs); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2695 | POSTING_READ(GTIER); |
| 2696 | |
| 2697 | /* ack & enable invalid PTE error interrupts */ |
| 2698 | #if 0 /* FIXME: add support to irq handler for checking these bits */ |
| 2699 | I915_WRITE(DPINVGTT, DPINVGTT_STATUS_MASK); |
| 2700 | I915_WRITE(DPINVGTT, DPINVGTT_EN_MASK); |
| 2701 | #endif |
| 2702 | |
| 2703 | I915_WRITE(VLV_MASTER_IER, MASTER_INTERRUPT_ENABLE); |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 2704 | |
| 2705 | return 0; |
| 2706 | } |
| 2707 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2708 | static void valleyview_irq_uninstall(struct drm_device *dev) |
| 2709 | { |
| 2710 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2711 | int pipe; |
| 2712 | |
| 2713 | if (!dev_priv) |
| 2714 | return; |
| 2715 | |
Egbert Eich | ac4c16c | 2013-04-16 13:36:58 +0200 | [diff] [blame] | 2716 | del_timer_sync(&dev_priv->hotplug_reenable_timer); |
| 2717 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2718 | for_each_pipe(pipe) |
| 2719 | I915_WRITE(PIPESTAT(pipe), 0xffff); |
| 2720 | |
| 2721 | I915_WRITE(HWSTAM, 0xffffffff); |
| 2722 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 2723 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
| 2724 | for_each_pipe(pipe) |
| 2725 | I915_WRITE(PIPESTAT(pipe), 0xffff); |
| 2726 | I915_WRITE(VLV_IIR, 0xffffffff); |
| 2727 | I915_WRITE(VLV_IMR, 0xffffffff); |
| 2728 | I915_WRITE(VLV_IER, 0x0); |
| 2729 | POSTING_READ(VLV_IER); |
| 2730 | } |
| 2731 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2732 | static void ironlake_irq_uninstall(struct drm_device *dev) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2733 | { |
| 2734 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Jesse Barnes | 4697995 | 2011-04-07 13:53:55 -0700 | [diff] [blame] | 2735 | |
| 2736 | if (!dev_priv) |
| 2737 | return; |
| 2738 | |
Egbert Eich | ac4c16c | 2013-04-16 13:36:58 +0200 | [diff] [blame] | 2739 | del_timer_sync(&dev_priv->hotplug_reenable_timer); |
| 2740 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2741 | I915_WRITE(HWSTAM, 0xffffffff); |
| 2742 | |
| 2743 | I915_WRITE(DEIMR, 0xffffffff); |
| 2744 | I915_WRITE(DEIER, 0x0); |
| 2745 | I915_WRITE(DEIIR, I915_READ(DEIIR)); |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 2746 | if (IS_GEN7(dev)) |
| 2747 | I915_WRITE(GEN7_ERR_INT, I915_READ(GEN7_ERR_INT)); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2748 | |
| 2749 | I915_WRITE(GTIMR, 0xffffffff); |
| 2750 | I915_WRITE(GTIER, 0x0); |
| 2751 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
Keith Packard | 192aac1f | 2011-09-20 10:12:44 -0700 | [diff] [blame] | 2752 | |
Ben Widawsky | ab5c608 | 2013-04-05 13:12:41 -0700 | [diff] [blame] | 2753 | if (HAS_PCH_NOP(dev)) |
| 2754 | return; |
| 2755 | |
Keith Packard | 192aac1f | 2011-09-20 10:12:44 -0700 | [diff] [blame] | 2756 | I915_WRITE(SDEIMR, 0xffffffff); |
| 2757 | I915_WRITE(SDEIER, 0x0); |
| 2758 | I915_WRITE(SDEIIR, I915_READ(SDEIIR)); |
Paulo Zanoni | 8664281 | 2013-04-12 17:57:57 -0300 | [diff] [blame] | 2759 | if (HAS_PCH_CPT(dev) || HAS_PCH_LPT(dev)) |
| 2760 | I915_WRITE(SERR_INT, I915_READ(SERR_INT)); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2761 | } |
| 2762 | |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2763 | static void i8xx_irq_preinstall(struct drm_device * dev) |
| 2764 | { |
| 2765 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2766 | int pipe; |
| 2767 | |
| 2768 | atomic_set(&dev_priv->irq_received, 0); |
| 2769 | |
| 2770 | for_each_pipe(pipe) |
| 2771 | I915_WRITE(PIPESTAT(pipe), 0); |
| 2772 | I915_WRITE16(IMR, 0xffff); |
| 2773 | I915_WRITE16(IER, 0x0); |
| 2774 | POSTING_READ16(IER); |
| 2775 | } |
| 2776 | |
| 2777 | static int i8xx_irq_postinstall(struct drm_device *dev) |
| 2778 | { |
| 2779 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2780 | |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2781 | I915_WRITE16(EMR, |
| 2782 | ~(I915_ERROR_PAGE_TABLE | I915_ERROR_MEMORY_REFRESH)); |
| 2783 | |
| 2784 | /* Unmask the interrupts that we always want on. */ |
| 2785 | dev_priv->irq_mask = |
| 2786 | ~(I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 2787 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
| 2788 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 2789 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT | |
| 2790 | I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT); |
| 2791 | I915_WRITE16(IMR, dev_priv->irq_mask); |
| 2792 | |
| 2793 | I915_WRITE16(IER, |
| 2794 | I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 2795 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
| 2796 | I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT | |
| 2797 | I915_USER_INTERRUPT); |
| 2798 | POSTING_READ16(IER); |
| 2799 | |
| 2800 | return 0; |
| 2801 | } |
| 2802 | |
Ville Syrjälä | 90a72f8 | 2013-02-19 23:16:44 +0200 | [diff] [blame] | 2803 | /* |
| 2804 | * Returns true when a page flip has completed. |
| 2805 | */ |
| 2806 | static bool i8xx_handle_vblank(struct drm_device *dev, |
| 2807 | int pipe, u16 iir) |
| 2808 | { |
| 2809 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 2810 | u16 flip_pending = DISPLAY_PLANE_FLIP_PENDING(pipe); |
| 2811 | |
| 2812 | if (!drm_handle_vblank(dev, pipe)) |
| 2813 | return false; |
| 2814 | |
| 2815 | if ((iir & flip_pending) == 0) |
| 2816 | return false; |
| 2817 | |
| 2818 | intel_prepare_page_flip(dev, pipe); |
| 2819 | |
| 2820 | /* We detect FlipDone by looking for the change in PendingFlip from '1' |
| 2821 | * to '0' on the following vblank, i.e. IIR has the Pendingflip |
| 2822 | * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence |
| 2823 | * the flip is completed (no longer pending). Since this doesn't raise |
| 2824 | * an interrupt per se, we watch for the change at vblank. |
| 2825 | */ |
| 2826 | if (I915_READ16(ISR) & flip_pending) |
| 2827 | return false; |
| 2828 | |
| 2829 | intel_finish_page_flip(dev, pipe); |
| 2830 | |
| 2831 | return true; |
| 2832 | } |
| 2833 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 2834 | static irqreturn_t i8xx_irq_handler(int irq, void *arg) |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2835 | { |
| 2836 | struct drm_device *dev = (struct drm_device *) arg; |
| 2837 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2838 | u16 iir, new_iir; |
| 2839 | u32 pipe_stats[2]; |
| 2840 | unsigned long irqflags; |
| 2841 | int irq_received; |
| 2842 | int pipe; |
| 2843 | u16 flip_mask = |
| 2844 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 2845 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT; |
| 2846 | |
| 2847 | atomic_inc(&dev_priv->irq_received); |
| 2848 | |
| 2849 | iir = I915_READ16(IIR); |
| 2850 | if (iir == 0) |
| 2851 | return IRQ_NONE; |
| 2852 | |
| 2853 | while (iir & ~flip_mask) { |
| 2854 | /* Can't rely on pipestat interrupt bit in iir as it might |
| 2855 | * have been cleared after the pipestat interrupt was received. |
| 2856 | * It doesn't set the bit in iir again, but it still produces |
| 2857 | * interrupts (for non-MSI). |
| 2858 | */ |
| 2859 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 2860 | if (iir & I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT) |
| 2861 | i915_handle_error(dev, false); |
| 2862 | |
| 2863 | for_each_pipe(pipe) { |
| 2864 | int reg = PIPESTAT(pipe); |
| 2865 | pipe_stats[pipe] = I915_READ(reg); |
| 2866 | |
| 2867 | /* |
| 2868 | * Clear the PIPE*STAT regs before the IIR |
| 2869 | */ |
| 2870 | if (pipe_stats[pipe] & 0x8000ffff) { |
| 2871 | if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS) |
| 2872 | DRM_DEBUG_DRIVER("pipe %c underrun\n", |
| 2873 | pipe_name(pipe)); |
| 2874 | I915_WRITE(reg, pipe_stats[pipe]); |
| 2875 | irq_received = 1; |
| 2876 | } |
| 2877 | } |
| 2878 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 2879 | |
| 2880 | I915_WRITE16(IIR, iir & ~flip_mask); |
| 2881 | new_iir = I915_READ16(IIR); /* Flush posted writes */ |
| 2882 | |
Daniel Vetter | d05c617 | 2012-04-26 23:28:09 +0200 | [diff] [blame] | 2883 | i915_update_dri1_breadcrumb(dev); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2884 | |
| 2885 | if (iir & I915_USER_INTERRUPT) |
| 2886 | notify_ring(dev, &dev_priv->ring[RCS]); |
| 2887 | |
| 2888 | if (pipe_stats[0] & PIPE_VBLANK_INTERRUPT_STATUS && |
Ville Syrjälä | 90a72f8 | 2013-02-19 23:16:44 +0200 | [diff] [blame] | 2889 | i8xx_handle_vblank(dev, 0, iir)) |
| 2890 | flip_mask &= ~DISPLAY_PLANE_FLIP_PENDING(0); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2891 | |
| 2892 | if (pipe_stats[1] & PIPE_VBLANK_INTERRUPT_STATUS && |
Ville Syrjälä | 90a72f8 | 2013-02-19 23:16:44 +0200 | [diff] [blame] | 2893 | i8xx_handle_vblank(dev, 1, iir)) |
| 2894 | flip_mask &= ~DISPLAY_PLANE_FLIP_PENDING(1); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2895 | |
| 2896 | iir = new_iir; |
| 2897 | } |
| 2898 | |
| 2899 | return IRQ_HANDLED; |
| 2900 | } |
| 2901 | |
| 2902 | static void i8xx_irq_uninstall(struct drm_device * dev) |
| 2903 | { |
| 2904 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2905 | int pipe; |
| 2906 | |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2907 | for_each_pipe(pipe) { |
| 2908 | /* Clear enable bits; then clear status bits */ |
| 2909 | I915_WRITE(PIPESTAT(pipe), 0); |
| 2910 | I915_WRITE(PIPESTAT(pipe), I915_READ(PIPESTAT(pipe))); |
| 2911 | } |
| 2912 | I915_WRITE16(IMR, 0xffff); |
| 2913 | I915_WRITE16(IER, 0x0); |
| 2914 | I915_WRITE16(IIR, I915_READ16(IIR)); |
| 2915 | } |
| 2916 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2917 | static void i915_irq_preinstall(struct drm_device * dev) |
| 2918 | { |
| 2919 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2920 | int pipe; |
| 2921 | |
| 2922 | atomic_set(&dev_priv->irq_received, 0); |
| 2923 | |
| 2924 | if (I915_HAS_HOTPLUG(dev)) { |
| 2925 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 2926 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
| 2927 | } |
| 2928 | |
Chris Wilson | 00d98eb | 2012-04-24 22:59:48 +0100 | [diff] [blame] | 2929 | I915_WRITE16(HWSTAM, 0xeffe); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2930 | for_each_pipe(pipe) |
| 2931 | I915_WRITE(PIPESTAT(pipe), 0); |
| 2932 | I915_WRITE(IMR, 0xffffffff); |
| 2933 | I915_WRITE(IER, 0x0); |
| 2934 | POSTING_READ(IER); |
| 2935 | } |
| 2936 | |
| 2937 | static int i915_irq_postinstall(struct drm_device *dev) |
| 2938 | { |
| 2939 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2940 | u32 enable_mask; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2941 | |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2942 | I915_WRITE(EMR, ~(I915_ERROR_PAGE_TABLE | I915_ERROR_MEMORY_REFRESH)); |
| 2943 | |
| 2944 | /* Unmask the interrupts that we always want on. */ |
| 2945 | dev_priv->irq_mask = |
| 2946 | ~(I915_ASLE_INTERRUPT | |
| 2947 | I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 2948 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
| 2949 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 2950 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT | |
| 2951 | I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT); |
| 2952 | |
| 2953 | enable_mask = |
| 2954 | I915_ASLE_INTERRUPT | |
| 2955 | I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 2956 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
| 2957 | I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT | |
| 2958 | I915_USER_INTERRUPT; |
| 2959 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2960 | if (I915_HAS_HOTPLUG(dev)) { |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 2961 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 2962 | POSTING_READ(PORT_HOTPLUG_EN); |
| 2963 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2964 | /* Enable in IER... */ |
| 2965 | enable_mask |= I915_DISPLAY_PORT_INTERRUPT; |
| 2966 | /* and unmask in IMR */ |
| 2967 | dev_priv->irq_mask &= ~I915_DISPLAY_PORT_INTERRUPT; |
| 2968 | } |
| 2969 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2970 | I915_WRITE(IMR, dev_priv->irq_mask); |
| 2971 | I915_WRITE(IER, enable_mask); |
| 2972 | POSTING_READ(IER); |
| 2973 | |
Jani Nikula | f49e38d | 2013-04-29 13:02:54 +0300 | [diff] [blame] | 2974 | i915_enable_asle_pipestat(dev); |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 2975 | |
| 2976 | return 0; |
| 2977 | } |
| 2978 | |
Ville Syrjälä | 90a72f8 | 2013-02-19 23:16:44 +0200 | [diff] [blame] | 2979 | /* |
| 2980 | * Returns true when a page flip has completed. |
| 2981 | */ |
| 2982 | static bool i915_handle_vblank(struct drm_device *dev, |
| 2983 | int plane, int pipe, u32 iir) |
| 2984 | { |
| 2985 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 2986 | u32 flip_pending = DISPLAY_PLANE_FLIP_PENDING(plane); |
| 2987 | |
| 2988 | if (!drm_handle_vblank(dev, pipe)) |
| 2989 | return false; |
| 2990 | |
| 2991 | if ((iir & flip_pending) == 0) |
| 2992 | return false; |
| 2993 | |
| 2994 | intel_prepare_page_flip(dev, plane); |
| 2995 | |
| 2996 | /* We detect FlipDone by looking for the change in PendingFlip from '1' |
| 2997 | * to '0' on the following vblank, i.e. IIR has the Pendingflip |
| 2998 | * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence |
| 2999 | * the flip is completed (no longer pending). Since this doesn't raise |
| 3000 | * an interrupt per se, we watch for the change at vblank. |
| 3001 | */ |
| 3002 | if (I915_READ(ISR) & flip_pending) |
| 3003 | return false; |
| 3004 | |
| 3005 | intel_finish_page_flip(dev, pipe); |
| 3006 | |
| 3007 | return true; |
| 3008 | } |
| 3009 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 3010 | static irqreturn_t i915_irq_handler(int irq, void *arg) |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3011 | { |
| 3012 | struct drm_device *dev = (struct drm_device *) arg; |
| 3013 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Chris Wilson | 8291ee9 | 2012-04-24 22:59:47 +0100 | [diff] [blame] | 3014 | u32 iir, new_iir, pipe_stats[I915_MAX_PIPES]; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3015 | unsigned long irqflags; |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 3016 | u32 flip_mask = |
| 3017 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 3018 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT; |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 3019 | int pipe, ret = IRQ_NONE; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3020 | |
| 3021 | atomic_inc(&dev_priv->irq_received); |
| 3022 | |
| 3023 | iir = I915_READ(IIR); |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 3024 | do { |
| 3025 | bool irq_received = (iir & ~flip_mask) != 0; |
Chris Wilson | 8291ee9 | 2012-04-24 22:59:47 +0100 | [diff] [blame] | 3026 | bool blc_event = false; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3027 | |
| 3028 | /* Can't rely on pipestat interrupt bit in iir as it might |
| 3029 | * have been cleared after the pipestat interrupt was received. |
| 3030 | * It doesn't set the bit in iir again, but it still produces |
| 3031 | * interrupts (for non-MSI). |
| 3032 | */ |
| 3033 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 3034 | if (iir & I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT) |
| 3035 | i915_handle_error(dev, false); |
| 3036 | |
| 3037 | for_each_pipe(pipe) { |
| 3038 | int reg = PIPESTAT(pipe); |
| 3039 | pipe_stats[pipe] = I915_READ(reg); |
| 3040 | |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 3041 | /* Clear the PIPE*STAT regs before the IIR */ |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3042 | if (pipe_stats[pipe] & 0x8000ffff) { |
| 3043 | if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS) |
| 3044 | DRM_DEBUG_DRIVER("pipe %c underrun\n", |
| 3045 | pipe_name(pipe)); |
| 3046 | I915_WRITE(reg, pipe_stats[pipe]); |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 3047 | irq_received = true; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3048 | } |
| 3049 | } |
| 3050 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 3051 | |
| 3052 | if (!irq_received) |
| 3053 | break; |
| 3054 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3055 | /* Consume port. Then clear IIR or we'll miss events */ |
| 3056 | if ((I915_HAS_HOTPLUG(dev)) && |
| 3057 | (iir & I915_DISPLAY_PORT_INTERRUPT)) { |
| 3058 | u32 hotplug_status = I915_READ(PORT_HOTPLUG_STAT); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 3059 | u32 hotplug_trigger = hotplug_status & HOTPLUG_INT_STATUS_I915; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3060 | |
| 3061 | DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n", |
| 3062 | hotplug_status); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 3063 | if (hotplug_trigger) { |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 3064 | if (hotplug_irq_storm_detect(dev, hotplug_trigger, hpd_status_i915)) |
| 3065 | i915_hpd_irq_setup(dev); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3066 | queue_work(dev_priv->wq, |
| 3067 | &dev_priv->hotplug_work); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 3068 | } |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3069 | I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status); |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 3070 | POSTING_READ(PORT_HOTPLUG_STAT); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3071 | } |
| 3072 | |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 3073 | I915_WRITE(IIR, iir & ~flip_mask); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3074 | new_iir = I915_READ(IIR); /* Flush posted writes */ |
| 3075 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3076 | if (iir & I915_USER_INTERRUPT) |
| 3077 | notify_ring(dev, &dev_priv->ring[RCS]); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3078 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3079 | for_each_pipe(pipe) { |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 3080 | int plane = pipe; |
| 3081 | if (IS_MOBILE(dev)) |
| 3082 | plane = !plane; |
Ville Syrjälä | 5e2032d | 2013-02-19 15:16:38 +0200 | [diff] [blame] | 3083 | |
Ville Syrjälä | 90a72f8 | 2013-02-19 23:16:44 +0200 | [diff] [blame] | 3084 | if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS && |
| 3085 | i915_handle_vblank(dev, plane, pipe, iir)) |
| 3086 | flip_mask &= ~DISPLAY_PLANE_FLIP_PENDING(plane); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3087 | |
| 3088 | if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS) |
| 3089 | blc_event = true; |
| 3090 | } |
| 3091 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3092 | if (blc_event || (iir & I915_ASLE_INTERRUPT)) |
| 3093 | intel_opregion_asle_intr(dev); |
| 3094 | |
| 3095 | /* With MSI, interrupts are only generated when iir |
| 3096 | * transitions from zero to nonzero. If another bit got |
| 3097 | * set while we were handling the existing iir bits, then |
| 3098 | * we would never get another interrupt. |
| 3099 | * |
| 3100 | * This is fine on non-MSI as well, as if we hit this path |
| 3101 | * we avoid exiting the interrupt handler only to generate |
| 3102 | * another one. |
| 3103 | * |
| 3104 | * Note that for MSI this could cause a stray interrupt report |
| 3105 | * if an interrupt landed in the time between writing IIR and |
| 3106 | * the posting read. This should be rare enough to never |
| 3107 | * trigger the 99% of 100,000 interrupts test for disabling |
| 3108 | * stray interrupts. |
| 3109 | */ |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 3110 | ret = IRQ_HANDLED; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3111 | iir = new_iir; |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 3112 | } while (iir & ~flip_mask); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3113 | |
Daniel Vetter | d05c617 | 2012-04-26 23:28:09 +0200 | [diff] [blame] | 3114 | i915_update_dri1_breadcrumb(dev); |
Chris Wilson | 8291ee9 | 2012-04-24 22:59:47 +0100 | [diff] [blame] | 3115 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3116 | return ret; |
| 3117 | } |
| 3118 | |
| 3119 | static void i915_irq_uninstall(struct drm_device * dev) |
| 3120 | { |
| 3121 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 3122 | int pipe; |
| 3123 | |
Egbert Eich | ac4c16c | 2013-04-16 13:36:58 +0200 | [diff] [blame] | 3124 | del_timer_sync(&dev_priv->hotplug_reenable_timer); |
| 3125 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3126 | if (I915_HAS_HOTPLUG(dev)) { |
| 3127 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 3128 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
| 3129 | } |
| 3130 | |
Chris Wilson | 00d98eb | 2012-04-24 22:59:48 +0100 | [diff] [blame] | 3131 | I915_WRITE16(HWSTAM, 0xffff); |
Chris Wilson | 55b3975 | 2012-04-24 22:59:49 +0100 | [diff] [blame] | 3132 | for_each_pipe(pipe) { |
| 3133 | /* Clear enable bits; then clear status bits */ |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3134 | I915_WRITE(PIPESTAT(pipe), 0); |
Chris Wilson | 55b3975 | 2012-04-24 22:59:49 +0100 | [diff] [blame] | 3135 | I915_WRITE(PIPESTAT(pipe), I915_READ(PIPESTAT(pipe))); |
| 3136 | } |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3137 | I915_WRITE(IMR, 0xffffffff); |
| 3138 | I915_WRITE(IER, 0x0); |
| 3139 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3140 | I915_WRITE(IIR, I915_READ(IIR)); |
| 3141 | } |
| 3142 | |
| 3143 | static void i965_irq_preinstall(struct drm_device * dev) |
| 3144 | { |
| 3145 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 3146 | int pipe; |
| 3147 | |
| 3148 | atomic_set(&dev_priv->irq_received, 0); |
| 3149 | |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 3150 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 3151 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3152 | |
| 3153 | I915_WRITE(HWSTAM, 0xeffe); |
| 3154 | for_each_pipe(pipe) |
| 3155 | I915_WRITE(PIPESTAT(pipe), 0); |
| 3156 | I915_WRITE(IMR, 0xffffffff); |
| 3157 | I915_WRITE(IER, 0x0); |
| 3158 | POSTING_READ(IER); |
| 3159 | } |
| 3160 | |
| 3161 | static int i965_irq_postinstall(struct drm_device *dev) |
| 3162 | { |
| 3163 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Chris Wilson | bbba0a9 | 2012-04-24 22:59:51 +0100 | [diff] [blame] | 3164 | u32 enable_mask; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3165 | u32 error_mask; |
| 3166 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3167 | /* Unmask the interrupts that we always want on. */ |
Chris Wilson | bbba0a9 | 2012-04-24 22:59:51 +0100 | [diff] [blame] | 3168 | dev_priv->irq_mask = ~(I915_ASLE_INTERRUPT | |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 3169 | I915_DISPLAY_PORT_INTERRUPT | |
Chris Wilson | bbba0a9 | 2012-04-24 22:59:51 +0100 | [diff] [blame] | 3170 | I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 3171 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
| 3172 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 3173 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT | |
| 3174 | I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT); |
| 3175 | |
| 3176 | enable_mask = ~dev_priv->irq_mask; |
Ville Syrjälä | 21ad833 | 2013-02-19 15:16:39 +0200 | [diff] [blame] | 3177 | enable_mask &= ~(I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 3178 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT); |
Chris Wilson | bbba0a9 | 2012-04-24 22:59:51 +0100 | [diff] [blame] | 3179 | enable_mask |= I915_USER_INTERRUPT; |
| 3180 | |
| 3181 | if (IS_G4X(dev)) |
| 3182 | enable_mask |= I915_BSD_USER_INTERRUPT; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3183 | |
Daniel Vetter | 515ac2b | 2012-12-01 13:53:44 +0100 | [diff] [blame] | 3184 | i915_enable_pipestat(dev_priv, 0, PIPE_GMBUS_EVENT_ENABLE); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3185 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3186 | /* |
| 3187 | * Enable some error detection, note the instruction error mask |
| 3188 | * bit is reserved, so we leave it masked. |
| 3189 | */ |
| 3190 | if (IS_G4X(dev)) { |
| 3191 | error_mask = ~(GM45_ERROR_PAGE_TABLE | |
| 3192 | GM45_ERROR_MEM_PRIV | |
| 3193 | GM45_ERROR_CP_PRIV | |
| 3194 | I915_ERROR_MEMORY_REFRESH); |
| 3195 | } else { |
| 3196 | error_mask = ~(I915_ERROR_PAGE_TABLE | |
| 3197 | I915_ERROR_MEMORY_REFRESH); |
| 3198 | } |
| 3199 | I915_WRITE(EMR, error_mask); |
| 3200 | |
| 3201 | I915_WRITE(IMR, dev_priv->irq_mask); |
| 3202 | I915_WRITE(IER, enable_mask); |
| 3203 | POSTING_READ(IER); |
| 3204 | |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 3205 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 3206 | POSTING_READ(PORT_HOTPLUG_EN); |
| 3207 | |
Jani Nikula | f49e38d | 2013-04-29 13:02:54 +0300 | [diff] [blame] | 3208 | i915_enable_asle_pipestat(dev); |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 3209 | |
| 3210 | return 0; |
| 3211 | } |
| 3212 | |
Egbert Eich | bac56d5 | 2013-02-25 12:06:51 -0500 | [diff] [blame] | 3213 | static void i915_hpd_irq_setup(struct drm_device *dev) |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 3214 | { |
| 3215 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Egbert Eich | e5868a3 | 2013-02-28 04:17:12 -0500 | [diff] [blame] | 3216 | struct drm_mode_config *mode_config = &dev->mode_config; |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 3217 | struct intel_encoder *intel_encoder; |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 3218 | u32 hotplug_en; |
| 3219 | |
Egbert Eich | bac56d5 | 2013-02-25 12:06:51 -0500 | [diff] [blame] | 3220 | if (I915_HAS_HOTPLUG(dev)) { |
| 3221 | hotplug_en = I915_READ(PORT_HOTPLUG_EN); |
| 3222 | hotplug_en &= ~HOTPLUG_INT_EN_MASK; |
| 3223 | /* Note HDMI and DP share hotplug bits */ |
Egbert Eich | e5868a3 | 2013-02-28 04:17:12 -0500 | [diff] [blame] | 3224 | /* enable bits are the same for all generations */ |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 3225 | list_for_each_entry(intel_encoder, &mode_config->encoder_list, base.head) |
| 3226 | if (dev_priv->hpd_stats[intel_encoder->hpd_pin].hpd_mark == HPD_ENABLED) |
| 3227 | hotplug_en |= hpd_mask_i915[intel_encoder->hpd_pin]; |
Egbert Eich | bac56d5 | 2013-02-25 12:06:51 -0500 | [diff] [blame] | 3228 | /* Programming the CRT detection parameters tends |
| 3229 | to generate a spurious hotplug event about three |
| 3230 | seconds later. So just do it once. |
| 3231 | */ |
| 3232 | if (IS_G4X(dev)) |
| 3233 | hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64; |
Daniel Vetter | 85fc95b | 2013-03-27 15:47:11 +0100 | [diff] [blame] | 3234 | hotplug_en &= ~CRT_HOTPLUG_VOLTAGE_COMPARE_MASK; |
Egbert Eich | bac56d5 | 2013-02-25 12:06:51 -0500 | [diff] [blame] | 3235 | hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3236 | |
Egbert Eich | bac56d5 | 2013-02-25 12:06:51 -0500 | [diff] [blame] | 3237 | /* Ignore TV since it's buggy */ |
| 3238 | I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); |
| 3239 | } |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3240 | } |
| 3241 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 3242 | static irqreturn_t i965_irq_handler(int irq, void *arg) |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3243 | { |
| 3244 | struct drm_device *dev = (struct drm_device *) arg; |
| 3245 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3246 | u32 iir, new_iir; |
| 3247 | u32 pipe_stats[I915_MAX_PIPES]; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3248 | unsigned long irqflags; |
| 3249 | int irq_received; |
| 3250 | int ret = IRQ_NONE, pipe; |
Ville Syrjälä | 21ad833 | 2013-02-19 15:16:39 +0200 | [diff] [blame] | 3251 | u32 flip_mask = |
| 3252 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 3253 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3254 | |
| 3255 | atomic_inc(&dev_priv->irq_received); |
| 3256 | |
| 3257 | iir = I915_READ(IIR); |
| 3258 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3259 | for (;;) { |
Chris Wilson | 2c8ba29 | 2012-04-24 22:59:46 +0100 | [diff] [blame] | 3260 | bool blc_event = false; |
| 3261 | |
Ville Syrjälä | 21ad833 | 2013-02-19 15:16:39 +0200 | [diff] [blame] | 3262 | irq_received = (iir & ~flip_mask) != 0; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3263 | |
| 3264 | /* Can't rely on pipestat interrupt bit in iir as it might |
| 3265 | * have been cleared after the pipestat interrupt was received. |
| 3266 | * It doesn't set the bit in iir again, but it still produces |
| 3267 | * interrupts (for non-MSI). |
| 3268 | */ |
| 3269 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 3270 | if (iir & I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT) |
| 3271 | i915_handle_error(dev, false); |
| 3272 | |
| 3273 | for_each_pipe(pipe) { |
| 3274 | int reg = PIPESTAT(pipe); |
| 3275 | pipe_stats[pipe] = I915_READ(reg); |
| 3276 | |
| 3277 | /* |
| 3278 | * Clear the PIPE*STAT regs before the IIR |
| 3279 | */ |
| 3280 | if (pipe_stats[pipe] & 0x8000ffff) { |
| 3281 | if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS) |
| 3282 | DRM_DEBUG_DRIVER("pipe %c underrun\n", |
| 3283 | pipe_name(pipe)); |
| 3284 | I915_WRITE(reg, pipe_stats[pipe]); |
| 3285 | irq_received = 1; |
| 3286 | } |
| 3287 | } |
| 3288 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 3289 | |
| 3290 | if (!irq_received) |
| 3291 | break; |
| 3292 | |
| 3293 | ret = IRQ_HANDLED; |
| 3294 | |
| 3295 | /* Consume port. Then clear IIR or we'll miss events */ |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 3296 | if (iir & I915_DISPLAY_PORT_INTERRUPT) { |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3297 | u32 hotplug_status = I915_READ(PORT_HOTPLUG_STAT); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 3298 | u32 hotplug_trigger = hotplug_status & (IS_G4X(dev) ? |
| 3299 | HOTPLUG_INT_STATUS_G4X : |
| 3300 | HOTPLUG_INT_STATUS_I965); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3301 | |
| 3302 | DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n", |
| 3303 | hotplug_status); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 3304 | if (hotplug_trigger) { |
Egbert Eich | cd569ae | 2013-04-16 13:36:57 +0200 | [diff] [blame] | 3305 | if (hotplug_irq_storm_detect(dev, hotplug_trigger, |
| 3306 | IS_G4X(dev) ? hpd_status_gen4 : hpd_status_i965)) |
| 3307 | i915_hpd_irq_setup(dev); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3308 | queue_work(dev_priv->wq, |
| 3309 | &dev_priv->hotplug_work); |
Egbert Eich | b543fb0 | 2013-04-16 13:36:54 +0200 | [diff] [blame] | 3310 | } |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3311 | I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status); |
| 3312 | I915_READ(PORT_HOTPLUG_STAT); |
| 3313 | } |
| 3314 | |
Ville Syrjälä | 21ad833 | 2013-02-19 15:16:39 +0200 | [diff] [blame] | 3315 | I915_WRITE(IIR, iir & ~flip_mask); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3316 | new_iir = I915_READ(IIR); /* Flush posted writes */ |
| 3317 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3318 | if (iir & I915_USER_INTERRUPT) |
| 3319 | notify_ring(dev, &dev_priv->ring[RCS]); |
| 3320 | if (iir & I915_BSD_USER_INTERRUPT) |
| 3321 | notify_ring(dev, &dev_priv->ring[VCS]); |
| 3322 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3323 | for_each_pipe(pipe) { |
Chris Wilson | 2c8ba29 | 2012-04-24 22:59:46 +0100 | [diff] [blame] | 3324 | if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS && |
Ville Syrjälä | 90a72f8 | 2013-02-19 23:16:44 +0200 | [diff] [blame] | 3325 | i915_handle_vblank(dev, pipe, pipe, iir)) |
| 3326 | flip_mask &= ~DISPLAY_PLANE_FLIP_PENDING(pipe); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3327 | |
| 3328 | if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS) |
| 3329 | blc_event = true; |
| 3330 | } |
| 3331 | |
| 3332 | |
| 3333 | if (blc_event || (iir & I915_ASLE_INTERRUPT)) |
| 3334 | intel_opregion_asle_intr(dev); |
| 3335 | |
Daniel Vetter | 515ac2b | 2012-12-01 13:53:44 +0100 | [diff] [blame] | 3336 | if (pipe_stats[0] & PIPE_GMBUS_INTERRUPT_STATUS) |
| 3337 | gmbus_irq_handler(dev); |
| 3338 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3339 | /* With MSI, interrupts are only generated when iir |
| 3340 | * transitions from zero to nonzero. If another bit got |
| 3341 | * set while we were handling the existing iir bits, then |
| 3342 | * we would never get another interrupt. |
| 3343 | * |
| 3344 | * This is fine on non-MSI as well, as if we hit this path |
| 3345 | * we avoid exiting the interrupt handler only to generate |
| 3346 | * another one. |
| 3347 | * |
| 3348 | * Note that for MSI this could cause a stray interrupt report |
| 3349 | * if an interrupt landed in the time between writing IIR and |
| 3350 | * the posting read. This should be rare enough to never |
| 3351 | * trigger the 99% of 100,000 interrupts test for disabling |
| 3352 | * stray interrupts. |
| 3353 | */ |
| 3354 | iir = new_iir; |
| 3355 | } |
| 3356 | |
Daniel Vetter | d05c617 | 2012-04-26 23:28:09 +0200 | [diff] [blame] | 3357 | i915_update_dri1_breadcrumb(dev); |
Chris Wilson | 2c8ba29 | 2012-04-24 22:59:46 +0100 | [diff] [blame] | 3358 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3359 | return ret; |
| 3360 | } |
| 3361 | |
| 3362 | static void i965_irq_uninstall(struct drm_device * dev) |
| 3363 | { |
| 3364 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 3365 | int pipe; |
| 3366 | |
| 3367 | if (!dev_priv) |
| 3368 | return; |
| 3369 | |
Egbert Eich | ac4c16c | 2013-04-16 13:36:58 +0200 | [diff] [blame] | 3370 | del_timer_sync(&dev_priv->hotplug_reenable_timer); |
| 3371 | |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 3372 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 3373 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3374 | |
| 3375 | I915_WRITE(HWSTAM, 0xffffffff); |
| 3376 | for_each_pipe(pipe) |
| 3377 | I915_WRITE(PIPESTAT(pipe), 0); |
| 3378 | I915_WRITE(IMR, 0xffffffff); |
| 3379 | I915_WRITE(IER, 0x0); |
| 3380 | |
| 3381 | for_each_pipe(pipe) |
| 3382 | I915_WRITE(PIPESTAT(pipe), |
| 3383 | I915_READ(PIPESTAT(pipe)) & 0x8000ffff); |
| 3384 | I915_WRITE(IIR, I915_READ(IIR)); |
| 3385 | } |
| 3386 | |
Egbert Eich | ac4c16c | 2013-04-16 13:36:58 +0200 | [diff] [blame] | 3387 | static void i915_reenable_hotplug_timer_func(unsigned long data) |
| 3388 | { |
| 3389 | drm_i915_private_t *dev_priv = (drm_i915_private_t *)data; |
| 3390 | struct drm_device *dev = dev_priv->dev; |
| 3391 | struct drm_mode_config *mode_config = &dev->mode_config; |
| 3392 | unsigned long irqflags; |
| 3393 | int i; |
| 3394 | |
| 3395 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 3396 | for (i = (HPD_NONE + 1); i < HPD_NUM_PINS; i++) { |
| 3397 | struct drm_connector *connector; |
| 3398 | |
| 3399 | if (dev_priv->hpd_stats[i].hpd_mark != HPD_DISABLED) |
| 3400 | continue; |
| 3401 | |
| 3402 | dev_priv->hpd_stats[i].hpd_mark = HPD_ENABLED; |
| 3403 | |
| 3404 | list_for_each_entry(connector, &mode_config->connector_list, head) { |
| 3405 | struct intel_connector *intel_connector = to_intel_connector(connector); |
| 3406 | |
| 3407 | if (intel_connector->encoder->hpd_pin == i) { |
| 3408 | if (connector->polled != intel_connector->polled) |
| 3409 | DRM_DEBUG_DRIVER("Reenabling HPD on connector %s\n", |
| 3410 | drm_get_connector_name(connector)); |
| 3411 | connector->polled = intel_connector->polled; |
| 3412 | if (!connector->polled) |
| 3413 | connector->polled = DRM_CONNECTOR_POLL_HPD; |
| 3414 | } |
| 3415 | } |
| 3416 | } |
| 3417 | if (dev_priv->display.hpd_irq_setup) |
| 3418 | dev_priv->display.hpd_irq_setup(dev); |
| 3419 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 3420 | } |
| 3421 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 3422 | void intel_irq_init(struct drm_device *dev) |
| 3423 | { |
Chris Wilson | 8b2e326 | 2012-04-24 22:59:41 +0100 | [diff] [blame] | 3424 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 3425 | |
| 3426 | INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func); |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 3427 | INIT_WORK(&dev_priv->gpu_error.work, i915_error_work_func); |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 3428 | INIT_WORK(&dev_priv->rps.work, gen6_pm_rps_work); |
Daniel Vetter | a4da4fa | 2012-11-02 19:55:07 +0100 | [diff] [blame] | 3429 | INIT_WORK(&dev_priv->l3_parity.error_work, ivybridge_parity_work); |
Chris Wilson | 8b2e326 | 2012-04-24 22:59:41 +0100 | [diff] [blame] | 3430 | |
Daniel Vetter | 99584db | 2012-11-14 17:14:04 +0100 | [diff] [blame] | 3431 | setup_timer(&dev_priv->gpu_error.hangcheck_timer, |
| 3432 | i915_hangcheck_elapsed, |
Daniel Vetter | 61bac78 | 2012-12-01 21:03:21 +0100 | [diff] [blame] | 3433 | (unsigned long) dev); |
Egbert Eich | ac4c16c | 2013-04-16 13:36:58 +0200 | [diff] [blame] | 3434 | setup_timer(&dev_priv->hotplug_reenable_timer, i915_reenable_hotplug_timer_func, |
| 3435 | (unsigned long) dev_priv); |
Daniel Vetter | 61bac78 | 2012-12-01 21:03:21 +0100 | [diff] [blame] | 3436 | |
Tomas Janousek | 97a19a2 | 2012-12-08 13:48:13 +0100 | [diff] [blame] | 3437 | pm_qos_add_request(&dev_priv->pm_qos, PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); |
Daniel Vetter | 9ee32fea | 2012-12-01 13:53:48 +0100 | [diff] [blame] | 3438 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 3439 | dev->driver->get_vblank_counter = i915_get_vblank_counter; |
| 3440 | dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */ |
Eugeni Dodonov | 7d4e146 | 2012-05-09 15:37:09 -0300 | [diff] [blame] | 3441 | if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) { |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 3442 | dev->max_vblank_count = 0xffffffff; /* full 32 bit counter */ |
| 3443 | dev->driver->get_vblank_counter = gm45_get_vblank_counter; |
| 3444 | } |
| 3445 | |
Keith Packard | c3613de | 2011-08-12 17:05:54 -0700 | [diff] [blame] | 3446 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
| 3447 | dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp; |
| 3448 | else |
| 3449 | dev->driver->get_vblank_timestamp = NULL; |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 3450 | dev->driver->get_scanout_position = i915_get_crtc_scanoutpos; |
| 3451 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 3452 | if (IS_VALLEYVIEW(dev)) { |
| 3453 | dev->driver->irq_handler = valleyview_irq_handler; |
| 3454 | dev->driver->irq_preinstall = valleyview_irq_preinstall; |
| 3455 | dev->driver->irq_postinstall = valleyview_irq_postinstall; |
| 3456 | dev->driver->irq_uninstall = valleyview_irq_uninstall; |
| 3457 | dev->driver->enable_vblank = valleyview_enable_vblank; |
| 3458 | dev->driver->disable_vblank = valleyview_disable_vblank; |
Egbert Eich | fa00abe | 2013-02-25 12:06:48 -0500 | [diff] [blame] | 3459 | dev_priv->display.hpd_irq_setup = i915_hpd_irq_setup; |
Daniel Vetter | 4a06e20 | 2012-12-01 13:53:40 +0100 | [diff] [blame] | 3460 | } else if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 3461 | /* Share pre & uninstall handlers with ILK/SNB */ |
| 3462 | dev->driver->irq_handler = ivybridge_irq_handler; |
| 3463 | dev->driver->irq_preinstall = ironlake_irq_preinstall; |
| 3464 | dev->driver->irq_postinstall = ivybridge_irq_postinstall; |
| 3465 | dev->driver->irq_uninstall = ironlake_irq_uninstall; |
| 3466 | dev->driver->enable_vblank = ivybridge_enable_vblank; |
| 3467 | dev->driver->disable_vblank = ivybridge_disable_vblank; |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 3468 | dev_priv->display.hpd_irq_setup = ibx_hpd_irq_setup; |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 3469 | } else if (HAS_PCH_SPLIT(dev)) { |
| 3470 | dev->driver->irq_handler = ironlake_irq_handler; |
| 3471 | dev->driver->irq_preinstall = ironlake_irq_preinstall; |
| 3472 | dev->driver->irq_postinstall = ironlake_irq_postinstall; |
| 3473 | dev->driver->irq_uninstall = ironlake_irq_uninstall; |
| 3474 | dev->driver->enable_vblank = ironlake_enable_vblank; |
| 3475 | dev->driver->disable_vblank = ironlake_disable_vblank; |
Daniel Vetter | 82a28bc | 2013-03-27 15:55:01 +0100 | [diff] [blame] | 3476 | dev_priv->display.hpd_irq_setup = ibx_hpd_irq_setup; |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 3477 | } else { |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 3478 | if (INTEL_INFO(dev)->gen == 2) { |
| 3479 | dev->driver->irq_preinstall = i8xx_irq_preinstall; |
| 3480 | dev->driver->irq_postinstall = i8xx_irq_postinstall; |
| 3481 | dev->driver->irq_handler = i8xx_irq_handler; |
| 3482 | dev->driver->irq_uninstall = i8xx_irq_uninstall; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3483 | } else if (INTEL_INFO(dev)->gen == 3) { |
| 3484 | dev->driver->irq_preinstall = i915_irq_preinstall; |
| 3485 | dev->driver->irq_postinstall = i915_irq_postinstall; |
| 3486 | dev->driver->irq_uninstall = i915_irq_uninstall; |
| 3487 | dev->driver->irq_handler = i915_irq_handler; |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 3488 | dev_priv->display.hpd_irq_setup = i915_hpd_irq_setup; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 3489 | } else { |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 3490 | dev->driver->irq_preinstall = i965_irq_preinstall; |
| 3491 | dev->driver->irq_postinstall = i965_irq_postinstall; |
| 3492 | dev->driver->irq_uninstall = i965_irq_uninstall; |
| 3493 | dev->driver->irq_handler = i965_irq_handler; |
Egbert Eich | bac56d5 | 2013-02-25 12:06:51 -0500 | [diff] [blame] | 3494 | dev_priv->display.hpd_irq_setup = i915_hpd_irq_setup; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 3495 | } |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 3496 | dev->driver->enable_vblank = i915_enable_vblank; |
| 3497 | dev->driver->disable_vblank = i915_disable_vblank; |
| 3498 | } |
| 3499 | } |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 3500 | |
| 3501 | void intel_hpd_init(struct drm_device *dev) |
| 3502 | { |
| 3503 | struct drm_i915_private *dev_priv = dev->dev_private; |
Egbert Eich | 821450c | 2013-04-16 13:36:55 +0200 | [diff] [blame] | 3504 | struct drm_mode_config *mode_config = &dev->mode_config; |
| 3505 | struct drm_connector *connector; |
| 3506 | int i; |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 3507 | |
Egbert Eich | 821450c | 2013-04-16 13:36:55 +0200 | [diff] [blame] | 3508 | for (i = 1; i < HPD_NUM_PINS; i++) { |
| 3509 | dev_priv->hpd_stats[i].hpd_cnt = 0; |
| 3510 | dev_priv->hpd_stats[i].hpd_mark = HPD_ENABLED; |
| 3511 | } |
| 3512 | list_for_each_entry(connector, &mode_config->connector_list, head) { |
| 3513 | struct intel_connector *intel_connector = to_intel_connector(connector); |
| 3514 | connector->polled = intel_connector->polled; |
| 3515 | if (!connector->polled && I915_HAS_HOTPLUG(dev) && intel_connector->encoder->hpd_pin > HPD_NONE) |
| 3516 | connector->polled = DRM_CONNECTOR_POLL_HPD; |
| 3517 | } |
Daniel Vetter | 20afbda | 2012-12-11 14:05:07 +0100 | [diff] [blame] | 3518 | if (dev_priv->display.hpd_irq_setup) |
| 3519 | dev_priv->display.hpd_irq_setup(dev); |
| 3520 | } |