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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include "drmP.h" |
| 34 | #include "drm.h" |
| 35 | #include "i915_drm.h" |
| 36 | #include "i915_drv.h" |
Chris Wilson | 1c5d22f | 2009-08-25 11:15:50 +0100 | [diff] [blame] | 37 | #include "i915_trace.h" |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 38 | #include "intel_drv.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 40 | /* For display hotplug interrupt */ |
Chris Wilson | 995b676 | 2010-08-20 13:23:26 +0100 | [diff] [blame] | 41 | static void |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 42 | ironlake_enable_display_irq(drm_i915_private_t *dev_priv, u32 mask) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 43 | { |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 44 | if ((dev_priv->irq_mask & mask) != 0) { |
| 45 | dev_priv->irq_mask &= ~mask; |
| 46 | I915_WRITE(DEIMR, dev_priv->irq_mask); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 47 | POSTING_READ(DEIMR); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 48 | } |
| 49 | } |
| 50 | |
| 51 | static inline void |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 52 | ironlake_disable_display_irq(drm_i915_private_t *dev_priv, u32 mask) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 53 | { |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 54 | if ((dev_priv->irq_mask & mask) != mask) { |
| 55 | dev_priv->irq_mask |= mask; |
| 56 | I915_WRITE(DEIMR, dev_priv->irq_mask); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 57 | POSTING_READ(DEIMR); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 58 | } |
| 59 | } |
| 60 | |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 61 | void |
| 62 | i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask) |
| 63 | { |
| 64 | if ((dev_priv->pipestat[pipe] & mask) != mask) { |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 65 | u32 reg = PIPESTAT(pipe); |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 66 | |
| 67 | dev_priv->pipestat[pipe] |= mask; |
| 68 | /* Enable the interrupt, clear any pending status */ |
| 69 | I915_WRITE(reg, dev_priv->pipestat[pipe] | (mask >> 16)); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 70 | POSTING_READ(reg); |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 71 | } |
| 72 | } |
| 73 | |
| 74 | void |
| 75 | i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask) |
| 76 | { |
| 77 | if ((dev_priv->pipestat[pipe] & mask) != 0) { |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 78 | u32 reg = PIPESTAT(pipe); |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 79 | |
| 80 | dev_priv->pipestat[pipe] &= ~mask; |
| 81 | I915_WRITE(reg, dev_priv->pipestat[pipe]); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 82 | POSTING_READ(reg); |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 83 | } |
| 84 | } |
| 85 | |
=?utf-8?q?Michel_D=C3=A4nzer?= | a6b54f3 | 2006-10-24 23:37:43 +1000 | [diff] [blame] | 86 | /** |
Zhao Yakui | 01c6688 | 2009-10-28 05:10:00 +0000 | [diff] [blame] | 87 | * intel_enable_asle - enable ASLE interrupt for OpRegion |
| 88 | */ |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 89 | void intel_enable_asle(struct drm_device *dev) |
Zhao Yakui | 01c6688 | 2009-10-28 05:10:00 +0000 | [diff] [blame] | 90 | { |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 91 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 92 | unsigned long irqflags; |
| 93 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 94 | /* FIXME: opregion/asle for VLV */ |
| 95 | if (IS_VALLEYVIEW(dev)) |
| 96 | return; |
| 97 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 98 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Zhao Yakui | 01c6688 | 2009-10-28 05:10:00 +0000 | [diff] [blame] | 99 | |
Eric Anholt | c619eed | 2010-01-28 16:45:52 -0800 | [diff] [blame] | 100 | if (HAS_PCH_SPLIT(dev)) |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 101 | ironlake_enable_display_irq(dev_priv, DE_GSE); |
Zhao Yakui | edcb49c | 2010-04-07 17:11:21 +0800 | [diff] [blame] | 102 | else { |
Zhao Yakui | 01c6688 | 2009-10-28 05:10:00 +0000 | [diff] [blame] | 103 | i915_enable_pipestat(dev_priv, 1, |
Jesse Barnes | d874bcf | 2010-06-30 13:16:00 -0700 | [diff] [blame] | 104 | PIPE_LEGACY_BLC_EVENT_ENABLE); |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 105 | if (INTEL_INFO(dev)->gen >= 4) |
Zhao Yakui | edcb49c | 2010-04-07 17:11:21 +0800 | [diff] [blame] | 106 | i915_enable_pipestat(dev_priv, 0, |
Jesse Barnes | d874bcf | 2010-06-30 13:16:00 -0700 | [diff] [blame] | 107 | PIPE_LEGACY_BLC_EVENT_ENABLE); |
Zhao Yakui | edcb49c | 2010-04-07 17:11:21 +0800 | [diff] [blame] | 108 | } |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 109 | |
| 110 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
Zhao Yakui | 01c6688 | 2009-10-28 05:10:00 +0000 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | /** |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 114 | * i915_pipe_enabled - check if a pipe is enabled |
| 115 | * @dev: DRM device |
| 116 | * @pipe: pipe to check |
| 117 | * |
| 118 | * Reading certain registers when the pipe is disabled can hang the chip. |
| 119 | * Use this routine to make sure the PLL is running and the pipe is active |
| 120 | * before reading such registers if unsure. |
| 121 | */ |
| 122 | static int |
| 123 | i915_pipe_enabled(struct drm_device *dev, int pipe) |
| 124 | { |
| 125 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 126 | return I915_READ(PIPECONF(pipe)) & PIPECONF_ENABLE; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 127 | } |
| 128 | |
Keith Packard | 42f52ef | 2008-10-18 19:39:29 -0700 | [diff] [blame] | 129 | /* Called from drm generic code, passed a 'crtc', which |
| 130 | * we use as a pipe index |
| 131 | */ |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 132 | static u32 i915_get_vblank_counter(struct drm_device *dev, int pipe) |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 133 | { |
| 134 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 135 | unsigned long high_frame; |
| 136 | unsigned long low_frame; |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 137 | u32 high1, high2, low; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 138 | |
| 139 | if (!i915_pipe_enabled(dev, pipe)) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 140 | DRM_DEBUG_DRIVER("trying to get vblank count for disabled " |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 141 | "pipe %c\n", pipe_name(pipe)); |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 142 | return 0; |
| 143 | } |
| 144 | |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 145 | high_frame = PIPEFRAME(pipe); |
| 146 | low_frame = PIPEFRAMEPIXEL(pipe); |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 147 | |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 148 | /* |
| 149 | * High & low register fields aren't synchronized, so make sure |
| 150 | * we get a low value that's stable across two reads of the high |
| 151 | * register. |
| 152 | */ |
| 153 | do { |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 154 | high1 = I915_READ(high_frame) & PIPE_FRAME_HIGH_MASK; |
| 155 | low = I915_READ(low_frame) & PIPE_FRAME_LOW_MASK; |
| 156 | high2 = I915_READ(high_frame) & PIPE_FRAME_HIGH_MASK; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 157 | } while (high1 != high2); |
| 158 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 159 | high1 >>= PIPE_FRAME_HIGH_SHIFT; |
| 160 | low >>= PIPE_FRAME_LOW_SHIFT; |
| 161 | return (high1 << 8) | low; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 162 | } |
| 163 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 164 | static u32 gm45_get_vblank_counter(struct drm_device *dev, int pipe) |
Jesse Barnes | 9880b7a | 2009-02-06 10:22:41 -0800 | [diff] [blame] | 165 | { |
| 166 | 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] | 167 | int reg = PIPE_FRMCOUNT_GM45(pipe); |
Jesse Barnes | 9880b7a | 2009-02-06 10:22:41 -0800 | [diff] [blame] | 168 | |
| 169 | if (!i915_pipe_enabled(dev, pipe)) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 170 | DRM_DEBUG_DRIVER("trying to get vblank count for disabled " |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 171 | "pipe %c\n", pipe_name(pipe)); |
Jesse Barnes | 9880b7a | 2009-02-06 10:22:41 -0800 | [diff] [blame] | 172 | return 0; |
| 173 | } |
| 174 | |
| 175 | return I915_READ(reg); |
| 176 | } |
| 177 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 178 | static int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe, |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 179 | int *vpos, int *hpos) |
| 180 | { |
| 181 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 182 | u32 vbl = 0, position = 0; |
| 183 | int vbl_start, vbl_end, htotal, vtotal; |
| 184 | bool in_vbl = true; |
| 185 | int ret = 0; |
| 186 | |
| 187 | if (!i915_pipe_enabled(dev, pipe)) { |
| 188 | DRM_DEBUG_DRIVER("trying to get scanoutpos for disabled " |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 189 | "pipe %c\n", pipe_name(pipe)); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 190 | return 0; |
| 191 | } |
| 192 | |
| 193 | /* Get vtotal. */ |
| 194 | vtotal = 1 + ((I915_READ(VTOTAL(pipe)) >> 16) & 0x1fff); |
| 195 | |
| 196 | if (INTEL_INFO(dev)->gen >= 4) { |
| 197 | /* No obvious pixelcount register. Only query vertical |
| 198 | * scanout position from Display scan line register. |
| 199 | */ |
| 200 | position = I915_READ(PIPEDSL(pipe)); |
| 201 | |
| 202 | /* Decode into vertical scanout position. Don't have |
| 203 | * horizontal scanout position. |
| 204 | */ |
| 205 | *vpos = position & 0x1fff; |
| 206 | *hpos = 0; |
| 207 | } else { |
| 208 | /* Have access to pixelcount since start of frame. |
| 209 | * We can split this into vertical and horizontal |
| 210 | * scanout position. |
| 211 | */ |
| 212 | position = (I915_READ(PIPEFRAMEPIXEL(pipe)) & PIPE_PIXEL_MASK) >> PIPE_PIXEL_SHIFT; |
| 213 | |
| 214 | htotal = 1 + ((I915_READ(HTOTAL(pipe)) >> 16) & 0x1fff); |
| 215 | *vpos = position / htotal; |
| 216 | *hpos = position - (*vpos * htotal); |
| 217 | } |
| 218 | |
| 219 | /* Query vblank area. */ |
| 220 | vbl = I915_READ(VBLANK(pipe)); |
| 221 | |
| 222 | /* Test position against vblank region. */ |
| 223 | vbl_start = vbl & 0x1fff; |
| 224 | vbl_end = (vbl >> 16) & 0x1fff; |
| 225 | |
| 226 | if ((*vpos < vbl_start) || (*vpos > vbl_end)) |
| 227 | in_vbl = false; |
| 228 | |
| 229 | /* Inside "upper part" of vblank area? Apply corrective offset: */ |
| 230 | if (in_vbl && (*vpos >= vbl_start)) |
| 231 | *vpos = *vpos - vtotal; |
| 232 | |
| 233 | /* Readouts valid? */ |
| 234 | if (vbl > 0) |
| 235 | ret |= DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE; |
| 236 | |
| 237 | /* In vblank? */ |
| 238 | if (in_vbl) |
| 239 | ret |= DRM_SCANOUTPOS_INVBL; |
| 240 | |
| 241 | return ret; |
| 242 | } |
| 243 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 244 | static int i915_get_vblank_timestamp(struct drm_device *dev, int pipe, |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 245 | int *max_error, |
| 246 | struct timeval *vblank_time, |
| 247 | unsigned flags) |
| 248 | { |
Chris Wilson | 4041b85 | 2011-01-22 10:07:56 +0000 | [diff] [blame] | 249 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 250 | struct drm_crtc *crtc; |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 251 | |
Chris Wilson | 4041b85 | 2011-01-22 10:07:56 +0000 | [diff] [blame] | 252 | if (pipe < 0 || pipe >= dev_priv->num_pipe) { |
| 253 | DRM_ERROR("Invalid crtc %d\n", pipe); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 254 | return -EINVAL; |
| 255 | } |
| 256 | |
| 257 | /* Get drm_crtc to timestamp: */ |
Chris Wilson | 4041b85 | 2011-01-22 10:07:56 +0000 | [diff] [blame] | 258 | crtc = intel_get_crtc_for_pipe(dev, pipe); |
| 259 | if (crtc == NULL) { |
| 260 | DRM_ERROR("Invalid crtc %d\n", pipe); |
| 261 | return -EINVAL; |
| 262 | } |
| 263 | |
| 264 | if (!crtc->enabled) { |
| 265 | DRM_DEBUG_KMS("crtc %d is disabled\n", pipe); |
| 266 | return -EBUSY; |
| 267 | } |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 268 | |
| 269 | /* Helper routine in DRM core does all the work: */ |
Chris Wilson | 4041b85 | 2011-01-22 10:07:56 +0000 | [diff] [blame] | 270 | return drm_calc_vbltimestamp_from_scanoutpos(dev, pipe, max_error, |
| 271 | vblank_time, flags, |
| 272 | crtc); |
Mario Kleiner | 0af7e4d | 2010-12-08 04:07:19 +0100 | [diff] [blame] | 273 | } |
| 274 | |
Jesse Barnes | 5ca5828 | 2009-03-31 14:11:15 -0700 | [diff] [blame] | 275 | /* |
| 276 | * Handle hotplug events outside the interrupt handler proper. |
| 277 | */ |
| 278 | static void i915_hotplug_work_func(struct work_struct *work) |
| 279 | { |
| 280 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, |
| 281 | hotplug_work); |
| 282 | struct drm_device *dev = dev_priv->dev; |
Keith Packard | c31c4ba | 2009-05-06 11:48:58 -0700 | [diff] [blame] | 283 | struct drm_mode_config *mode_config = &dev->mode_config; |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 284 | struct intel_encoder *encoder; |
Jesse Barnes | 5ca5828 | 2009-03-31 14:11:15 -0700 | [diff] [blame] | 285 | |
Keith Packard | a65e34c | 2011-07-25 10:04:56 -0700 | [diff] [blame] | 286 | mutex_lock(&mode_config->mutex); |
Jesse Barnes | e67189ab | 2011-02-11 14:44:51 -0800 | [diff] [blame] | 287 | DRM_DEBUG_KMS("running encoder hotplug functions\n"); |
| 288 | |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 289 | list_for_each_entry(encoder, &mode_config->encoder_list, base.head) |
| 290 | if (encoder->hot_plug) |
| 291 | encoder->hot_plug(encoder); |
| 292 | |
Keith Packard | 40ee338 | 2011-07-28 15:31:19 -0700 | [diff] [blame] | 293 | mutex_unlock(&mode_config->mutex); |
| 294 | |
Jesse Barnes | 5ca5828 | 2009-03-31 14:11:15 -0700 | [diff] [blame] | 295 | /* Just fire off a uevent and let userspace tell us what to do */ |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 296 | drm_helper_hpd_irq_event(dev); |
Jesse Barnes | 5ca5828 | 2009-03-31 14:11:15 -0700 | [diff] [blame] | 297 | } |
| 298 | |
Daniel Vetter | 9270388 | 2012-08-09 16:46:01 +0200 | [diff] [blame] | 299 | /* defined intel_pm.c */ |
| 300 | extern spinlock_t mchdev_lock; |
| 301 | |
Daniel Vetter | 73edd18f | 2012-08-08 23:35:37 +0200 | [diff] [blame] | 302 | static void ironlake_handle_rps_change(struct drm_device *dev) |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 303 | { |
| 304 | drm_i915_private_t *dev_priv = dev->dev_private; |
Matthew Garrett | b5b72e8 | 2010-02-02 18:30:47 +0000 | [diff] [blame] | 305 | u32 busy_up, busy_down, max_avg, min_avg; |
Daniel Vetter | 9270388 | 2012-08-09 16:46:01 +0200 | [diff] [blame] | 306 | u8 new_delay; |
| 307 | unsigned long flags; |
| 308 | |
| 309 | spin_lock_irqsave(&mchdev_lock, flags); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 310 | |
Daniel Vetter | 73edd18f | 2012-08-08 23:35:37 +0200 | [diff] [blame] | 311 | I915_WRITE16(MEMINTRSTS, I915_READ(MEMINTRSTS)); |
| 312 | |
Daniel Vetter | 20e4d40 | 2012-08-08 23:35:39 +0200 | [diff] [blame] | 313 | new_delay = dev_priv->ips.cur_delay; |
Daniel Vetter | 9270388 | 2012-08-09 16:46:01 +0200 | [diff] [blame] | 314 | |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 315 | I915_WRITE16(MEMINTRSTS, MEMINT_EVAL_CHG); |
Matthew Garrett | b5b72e8 | 2010-02-02 18:30:47 +0000 | [diff] [blame] | 316 | busy_up = I915_READ(RCPREVBSYTUPAVG); |
| 317 | busy_down = I915_READ(RCPREVBSYTDNAVG); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 318 | max_avg = I915_READ(RCBMAXAVG); |
| 319 | min_avg = I915_READ(RCBMINAVG); |
| 320 | |
| 321 | /* Handle RCS change request from hw */ |
Matthew Garrett | b5b72e8 | 2010-02-02 18:30:47 +0000 | [diff] [blame] | 322 | if (busy_up > max_avg) { |
Daniel Vetter | 20e4d40 | 2012-08-08 23:35:39 +0200 | [diff] [blame] | 323 | if (dev_priv->ips.cur_delay != dev_priv->ips.max_delay) |
| 324 | new_delay = dev_priv->ips.cur_delay - 1; |
| 325 | if (new_delay < dev_priv->ips.max_delay) |
| 326 | new_delay = dev_priv->ips.max_delay; |
Matthew Garrett | b5b72e8 | 2010-02-02 18:30:47 +0000 | [diff] [blame] | 327 | } else if (busy_down < min_avg) { |
Daniel Vetter | 20e4d40 | 2012-08-08 23:35:39 +0200 | [diff] [blame] | 328 | if (dev_priv->ips.cur_delay != dev_priv->ips.min_delay) |
| 329 | new_delay = dev_priv->ips.cur_delay + 1; |
| 330 | if (new_delay > dev_priv->ips.min_delay) |
| 331 | new_delay = dev_priv->ips.min_delay; |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 332 | } |
| 333 | |
Jesse Barnes | 7648fa9 | 2010-05-20 14:28:11 -0700 | [diff] [blame] | 334 | if (ironlake_set_drps(dev, new_delay)) |
Daniel Vetter | 20e4d40 | 2012-08-08 23:35:39 +0200 | [diff] [blame] | 335 | dev_priv->ips.cur_delay = new_delay; |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 336 | |
Daniel Vetter | 9270388 | 2012-08-09 16:46:01 +0200 | [diff] [blame] | 337 | spin_unlock_irqrestore(&mchdev_lock, flags); |
| 338 | |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 339 | return; |
| 340 | } |
| 341 | |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 342 | static void notify_ring(struct drm_device *dev, |
| 343 | struct intel_ring_buffer *ring) |
| 344 | { |
| 345 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 9862e60 | 2011-01-04 22:22:17 +0000 | [diff] [blame] | 346 | |
Chris Wilson | 475553d | 2011-01-20 09:52:56 +0000 | [diff] [blame] | 347 | if (ring->obj == NULL) |
| 348 | return; |
| 349 | |
Chris Wilson | b2eadbc | 2012-08-09 10:58:30 +0100 | [diff] [blame] | 350 | trace_i915_gem_request_complete(ring, ring->get_seqno(ring, false)); |
Chris Wilson | 9862e60 | 2011-01-04 22:22:17 +0000 | [diff] [blame] | 351 | |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 352 | wake_up_all(&ring->irq_queue); |
Ben Widawsky | 3e0dc6b | 2011-06-29 10:26:42 -0700 | [diff] [blame] | 353 | if (i915_enable_hangcheck) { |
| 354 | dev_priv->hangcheck_count = 0; |
| 355 | mod_timer(&dev_priv->hangcheck_timer, |
Chris Wilson | cecc21f | 2012-10-05 17:02:56 +0100 | [diff] [blame] | 356 | round_jiffies_up(jiffies + DRM_I915_HANGCHECK_JIFFIES)); |
Ben Widawsky | 3e0dc6b | 2011-06-29 10:26:42 -0700 | [diff] [blame] | 357 | } |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 358 | } |
| 359 | |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 360 | static void gen6_pm_rps_work(struct work_struct *work) |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 361 | { |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 362 | 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] | 363 | rps.work); |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 364 | u32 pm_iir, pm_imr; |
Chris Wilson | 7b9e0ae | 2012-04-28 08:56:39 +0100 | [diff] [blame] | 365 | u8 new_delay; |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 366 | |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 367 | spin_lock_irq(&dev_priv->rps.lock); |
| 368 | pm_iir = dev_priv->rps.pm_iir; |
| 369 | dev_priv->rps.pm_iir = 0; |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 370 | pm_imr = I915_READ(GEN6_PMIMR); |
Daniel Vetter | a9e2641 | 2011-09-08 14:00:21 +0200 | [diff] [blame] | 371 | I915_WRITE(GEN6_PMIMR, 0); |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 372 | spin_unlock_irq(&dev_priv->rps.lock); |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 373 | |
Chris Wilson | 7b9e0ae | 2012-04-28 08:56:39 +0100 | [diff] [blame] | 374 | if ((pm_iir & GEN6_PM_DEFERRED_EVENTS) == 0) |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 375 | return; |
| 376 | |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 377 | mutex_lock(&dev_priv->dev->struct_mutex); |
Chris Wilson | 7b9e0ae | 2012-04-28 08:56:39 +0100 | [diff] [blame] | 378 | |
| 379 | if (pm_iir & GEN6_PM_RP_UP_THRESHOLD) |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 380 | new_delay = dev_priv->rps.cur_delay + 1; |
Chris Wilson | 7b9e0ae | 2012-04-28 08:56:39 +0100 | [diff] [blame] | 381 | else |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 382 | new_delay = dev_priv->rps.cur_delay - 1; |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 383 | |
Ben Widawsky | 7924963 | 2012-09-07 19:43:42 -0700 | [diff] [blame] | 384 | /* sysfs frequency interfaces may have snuck in while servicing the |
| 385 | * interrupt |
| 386 | */ |
| 387 | if (!(new_delay > dev_priv->rps.max_delay || |
| 388 | new_delay < dev_priv->rps.min_delay)) { |
| 389 | gen6_set_rps(dev_priv->dev, new_delay); |
| 390 | } |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 391 | |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 392 | mutex_unlock(&dev_priv->dev->struct_mutex); |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 393 | } |
| 394 | |
Ben Widawsky | e368919 | 2012-05-25 16:56:22 -0700 | [diff] [blame] | 395 | |
| 396 | /** |
| 397 | * ivybridge_parity_work - Workqueue called when a parity error interrupt |
| 398 | * occurred. |
| 399 | * @work: workqueue struct |
| 400 | * |
| 401 | * Doesn't actually do anything except notify userspace. As a consequence of |
| 402 | * this event, userspace should try to remap the bad rows since statistically |
| 403 | * it is likely the same row is more likely to go bad again. |
| 404 | */ |
| 405 | static void ivybridge_parity_work(struct work_struct *work) |
| 406 | { |
| 407 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, |
| 408 | parity_error_work); |
| 409 | u32 error_status, row, bank, subbank; |
| 410 | char *parity_event[5]; |
| 411 | uint32_t misccpctl; |
| 412 | unsigned long flags; |
| 413 | |
| 414 | /* We must turn off DOP level clock gating to access the L3 registers. |
| 415 | * In order to prevent a get/put style interface, acquire struct mutex |
| 416 | * any time we access those registers. |
| 417 | */ |
| 418 | mutex_lock(&dev_priv->dev->struct_mutex); |
| 419 | |
| 420 | misccpctl = I915_READ(GEN7_MISCCPCTL); |
| 421 | I915_WRITE(GEN7_MISCCPCTL, misccpctl & ~GEN7_DOP_CLOCK_GATE_ENABLE); |
| 422 | POSTING_READ(GEN7_MISCCPCTL); |
| 423 | |
| 424 | error_status = I915_READ(GEN7_L3CDERRST1); |
| 425 | row = GEN7_PARITY_ERROR_ROW(error_status); |
| 426 | bank = GEN7_PARITY_ERROR_BANK(error_status); |
| 427 | subbank = GEN7_PARITY_ERROR_SUBBANK(error_status); |
| 428 | |
| 429 | I915_WRITE(GEN7_L3CDERRST1, GEN7_PARITY_ERROR_VALID | |
| 430 | GEN7_L3CDERRST1_ENABLE); |
| 431 | POSTING_READ(GEN7_L3CDERRST1); |
| 432 | |
| 433 | I915_WRITE(GEN7_MISCCPCTL, misccpctl); |
| 434 | |
| 435 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
| 436 | dev_priv->gt_irq_mask &= ~GT_GEN7_L3_PARITY_ERROR_INTERRUPT; |
| 437 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 438 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
| 439 | |
| 440 | mutex_unlock(&dev_priv->dev->struct_mutex); |
| 441 | |
| 442 | parity_event[0] = "L3_PARITY_ERROR=1"; |
| 443 | parity_event[1] = kasprintf(GFP_KERNEL, "ROW=%d", row); |
| 444 | parity_event[2] = kasprintf(GFP_KERNEL, "BANK=%d", bank); |
| 445 | parity_event[3] = kasprintf(GFP_KERNEL, "SUBBANK=%d", subbank); |
| 446 | parity_event[4] = NULL; |
| 447 | |
| 448 | kobject_uevent_env(&dev_priv->dev->primary->kdev.kobj, |
| 449 | KOBJ_CHANGE, parity_event); |
| 450 | |
| 451 | DRM_DEBUG("Parity error: Row = %d, Bank = %d, Sub bank = %d.\n", |
| 452 | row, bank, subbank); |
| 453 | |
| 454 | kfree(parity_event[3]); |
| 455 | kfree(parity_event[2]); |
| 456 | kfree(parity_event[1]); |
| 457 | } |
| 458 | |
Daniel Vetter | d2ba847 | 2012-05-31 14:57:41 +0200 | [diff] [blame] | 459 | static void ivybridge_handle_parity_error(struct drm_device *dev) |
Ben Widawsky | e368919 | 2012-05-25 16:56:22 -0700 | [diff] [blame] | 460 | { |
| 461 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 462 | unsigned long flags; |
| 463 | |
Ben Widawsky | e1ef7cc | 2012-07-24 20:47:31 -0700 | [diff] [blame] | 464 | if (!HAS_L3_GPU_CACHE(dev)) |
Ben Widawsky | e368919 | 2012-05-25 16:56:22 -0700 | [diff] [blame] | 465 | return; |
| 466 | |
| 467 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
| 468 | dev_priv->gt_irq_mask |= GT_GEN7_L3_PARITY_ERROR_INTERRUPT; |
| 469 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 470 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
| 471 | |
| 472 | queue_work(dev_priv->wq, &dev_priv->parity_error_work); |
| 473 | } |
| 474 | |
Daniel Vetter | e7b4c6b | 2012-03-30 20:24:35 +0200 | [diff] [blame] | 475 | static void snb_gt_irq_handler(struct drm_device *dev, |
| 476 | struct drm_i915_private *dev_priv, |
| 477 | u32 gt_iir) |
| 478 | { |
| 479 | |
| 480 | if (gt_iir & (GEN6_RENDER_USER_INTERRUPT | |
| 481 | GEN6_RENDER_PIPE_CONTROL_NOTIFY_INTERRUPT)) |
| 482 | notify_ring(dev, &dev_priv->ring[RCS]); |
| 483 | if (gt_iir & GEN6_BSD_USER_INTERRUPT) |
| 484 | notify_ring(dev, &dev_priv->ring[VCS]); |
| 485 | if (gt_iir & GEN6_BLITTER_USER_INTERRUPT) |
| 486 | notify_ring(dev, &dev_priv->ring[BCS]); |
| 487 | |
| 488 | if (gt_iir & (GT_GEN6_BLT_CS_ERROR_INTERRUPT | |
| 489 | GT_GEN6_BSD_CS_ERROR_INTERRUPT | |
| 490 | GT_RENDER_CS_ERROR_INTERRUPT)) { |
| 491 | DRM_ERROR("GT error interrupt 0x%08x\n", gt_iir); |
| 492 | i915_handle_error(dev, false); |
| 493 | } |
Ben Widawsky | e368919 | 2012-05-25 16:56:22 -0700 | [diff] [blame] | 494 | |
| 495 | if (gt_iir & GT_GEN7_L3_PARITY_ERROR_INTERRUPT) |
| 496 | ivybridge_handle_parity_error(dev); |
Daniel Vetter | e7b4c6b | 2012-03-30 20:24:35 +0200 | [diff] [blame] | 497 | } |
| 498 | |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 499 | static void gen6_queue_rps_work(struct drm_i915_private *dev_priv, |
| 500 | u32 pm_iir) |
| 501 | { |
| 502 | unsigned long flags; |
| 503 | |
| 504 | /* |
| 505 | * IIR bits should never already be set because IMR should |
| 506 | * prevent an interrupt from being shown in IIR. The warning |
| 507 | * displays a case where we've unsafely cleared |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 508 | * dev_priv->rps.pm_iir. Although missing an interrupt of the same |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 509 | * type is not a problem, it displays a problem in the logic. |
| 510 | * |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 511 | * The mask bit in IMR is cleared by dev_priv->rps.work. |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 512 | */ |
| 513 | |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 514 | spin_lock_irqsave(&dev_priv->rps.lock, flags); |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 515 | dev_priv->rps.pm_iir |= pm_iir; |
| 516 | I915_WRITE(GEN6_PMIMR, dev_priv->rps.pm_iir); |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 517 | POSTING_READ(GEN6_PMIMR); |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 518 | spin_unlock_irqrestore(&dev_priv->rps.lock, flags); |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 519 | |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 520 | queue_work(dev_priv->wq, &dev_priv->rps.work); |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 521 | } |
| 522 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 523 | static irqreturn_t valleyview_irq_handler(int irq, void *arg) |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 524 | { |
| 525 | struct drm_device *dev = (struct drm_device *) arg; |
| 526 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 527 | u32 iir, gt_iir, pm_iir; |
| 528 | irqreturn_t ret = IRQ_NONE; |
| 529 | unsigned long irqflags; |
| 530 | int pipe; |
| 531 | u32 pipe_stats[I915_MAX_PIPES]; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 532 | bool blc_event; |
| 533 | |
| 534 | atomic_inc(&dev_priv->irq_received); |
| 535 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 536 | while (true) { |
| 537 | iir = I915_READ(VLV_IIR); |
| 538 | gt_iir = I915_READ(GTIIR); |
| 539 | pm_iir = I915_READ(GEN6_PMIIR); |
| 540 | |
| 541 | if (gt_iir == 0 && pm_iir == 0 && iir == 0) |
| 542 | goto out; |
| 543 | |
| 544 | ret = IRQ_HANDLED; |
| 545 | |
Daniel Vetter | e7b4c6b | 2012-03-30 20:24:35 +0200 | [diff] [blame] | 546 | snb_gt_irq_handler(dev, dev_priv, gt_iir); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 547 | |
| 548 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 549 | for_each_pipe(pipe) { |
| 550 | int reg = PIPESTAT(pipe); |
| 551 | pipe_stats[pipe] = I915_READ(reg); |
| 552 | |
| 553 | /* |
| 554 | * Clear the PIPE*STAT regs before the IIR |
| 555 | */ |
| 556 | if (pipe_stats[pipe] & 0x8000ffff) { |
| 557 | if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS) |
| 558 | DRM_DEBUG_DRIVER("pipe %c underrun\n", |
| 559 | pipe_name(pipe)); |
| 560 | I915_WRITE(reg, pipe_stats[pipe]); |
| 561 | } |
| 562 | } |
| 563 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 564 | |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 565 | for_each_pipe(pipe) { |
| 566 | if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS) |
| 567 | drm_handle_vblank(dev, pipe); |
| 568 | |
| 569 | if (pipe_stats[pipe] & PLANE_FLIPDONE_INT_STATUS_VLV) { |
| 570 | intel_prepare_page_flip(dev, pipe); |
| 571 | intel_finish_page_flip(dev, pipe); |
| 572 | } |
| 573 | } |
| 574 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 575 | /* Consume port. Then clear IIR or we'll miss events */ |
| 576 | if (iir & I915_DISPLAY_PORT_INTERRUPT) { |
| 577 | u32 hotplug_status = I915_READ(PORT_HOTPLUG_STAT); |
| 578 | |
| 579 | DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n", |
| 580 | hotplug_status); |
| 581 | if (hotplug_status & dev_priv->hotplug_supported_mask) |
| 582 | queue_work(dev_priv->wq, |
| 583 | &dev_priv->hotplug_work); |
| 584 | |
| 585 | I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status); |
| 586 | I915_READ(PORT_HOTPLUG_STAT); |
| 587 | } |
| 588 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 589 | if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS) |
| 590 | blc_event = true; |
| 591 | |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 592 | if (pm_iir & GEN6_PM_DEFERRED_EVENTS) |
| 593 | gen6_queue_rps_work(dev_priv, pm_iir); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 594 | |
| 595 | I915_WRITE(GTIIR, gt_iir); |
| 596 | I915_WRITE(GEN6_PMIIR, pm_iir); |
| 597 | I915_WRITE(VLV_IIR, iir); |
| 598 | } |
| 599 | |
| 600 | out: |
| 601 | return ret; |
| 602 | } |
| 603 | |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 604 | static void ibx_irq_handler(struct drm_device *dev, u32 pch_iir) |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 605 | { |
| 606 | 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] | 607 | int pipe; |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 608 | |
Daniel Vetter | 76e4383 | 2012-10-12 20:14:05 +0200 | [diff] [blame^] | 609 | if (pch_iir & SDE_HOTPLUG_MASK) |
| 610 | queue_work(dev_priv->wq, &dev_priv->hotplug_work); |
| 611 | |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 612 | if (pch_iir & SDE_AUDIO_POWER_MASK) |
| 613 | DRM_DEBUG_DRIVER("PCH audio power change on port %d\n", |
| 614 | (pch_iir & SDE_AUDIO_POWER_MASK) >> |
| 615 | SDE_AUDIO_POWER_SHIFT); |
| 616 | |
| 617 | if (pch_iir & SDE_GMBUS) |
| 618 | DRM_DEBUG_DRIVER("PCH GMBUS interrupt\n"); |
| 619 | |
| 620 | if (pch_iir & SDE_AUDIO_HDCP_MASK) |
| 621 | DRM_DEBUG_DRIVER("PCH HDCP audio interrupt\n"); |
| 622 | |
| 623 | if (pch_iir & SDE_AUDIO_TRANS_MASK) |
| 624 | DRM_DEBUG_DRIVER("PCH transcoder audio interrupt\n"); |
| 625 | |
| 626 | if (pch_iir & SDE_POISON) |
| 627 | DRM_ERROR("PCH poison interrupt\n"); |
| 628 | |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 629 | if (pch_iir & SDE_FDI_MASK) |
| 630 | for_each_pipe(pipe) |
| 631 | DRM_DEBUG_DRIVER(" pipe %c FDI IIR: 0x%08x\n", |
| 632 | pipe_name(pipe), |
| 633 | I915_READ(FDI_RX_IIR(pipe))); |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 634 | |
| 635 | if (pch_iir & (SDE_TRANSB_CRC_DONE | SDE_TRANSA_CRC_DONE)) |
| 636 | DRM_DEBUG_DRIVER("PCH transcoder CRC done interrupt\n"); |
| 637 | |
| 638 | if (pch_iir & (SDE_TRANSB_CRC_ERR | SDE_TRANSA_CRC_ERR)) |
| 639 | DRM_DEBUG_DRIVER("PCH transcoder CRC error interrupt\n"); |
| 640 | |
| 641 | if (pch_iir & SDE_TRANSB_FIFO_UNDER) |
| 642 | DRM_DEBUG_DRIVER("PCH transcoder B underrun interrupt\n"); |
| 643 | if (pch_iir & SDE_TRANSA_FIFO_UNDER) |
| 644 | DRM_DEBUG_DRIVER("PCH transcoder A underrun interrupt\n"); |
| 645 | } |
| 646 | |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 647 | static void cpt_irq_handler(struct drm_device *dev, u32 pch_iir) |
| 648 | { |
| 649 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 650 | int pipe; |
| 651 | |
Daniel Vetter | 76e4383 | 2012-10-12 20:14:05 +0200 | [diff] [blame^] | 652 | if (pch_iir & SDE_HOTPLUG_MASK_CPT) |
| 653 | queue_work(dev_priv->wq, &dev_priv->hotplug_work); |
| 654 | |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 655 | if (pch_iir & SDE_AUDIO_POWER_MASK_CPT) |
| 656 | DRM_DEBUG_DRIVER("PCH audio power change on port %d\n", |
| 657 | (pch_iir & SDE_AUDIO_POWER_MASK_CPT) >> |
| 658 | SDE_AUDIO_POWER_SHIFT_CPT); |
| 659 | |
| 660 | if (pch_iir & SDE_AUX_MASK_CPT) |
| 661 | DRM_DEBUG_DRIVER("AUX channel interrupt\n"); |
| 662 | |
| 663 | if (pch_iir & SDE_GMBUS_CPT) |
| 664 | DRM_DEBUG_DRIVER("PCH GMBUS interrupt\n"); |
| 665 | |
| 666 | if (pch_iir & SDE_AUDIO_CP_REQ_CPT) |
| 667 | DRM_DEBUG_DRIVER("Audio CP request interrupt\n"); |
| 668 | |
| 669 | if (pch_iir & SDE_AUDIO_CP_CHG_CPT) |
| 670 | DRM_DEBUG_DRIVER("Audio CP change interrupt\n"); |
| 671 | |
| 672 | if (pch_iir & SDE_FDI_MASK_CPT) |
| 673 | for_each_pipe(pipe) |
| 674 | DRM_DEBUG_DRIVER(" pipe %c FDI IIR: 0x%08x\n", |
| 675 | pipe_name(pipe), |
| 676 | I915_READ(FDI_RX_IIR(pipe))); |
| 677 | } |
| 678 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 679 | static irqreturn_t ivybridge_irq_handler(int irq, void *arg) |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 680 | { |
| 681 | struct drm_device *dev = (struct drm_device *) arg; |
| 682 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 683 | u32 de_iir, gt_iir, de_ier, pm_iir; |
| 684 | irqreturn_t ret = IRQ_NONE; |
| 685 | int i; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 686 | |
| 687 | atomic_inc(&dev_priv->irq_received); |
| 688 | |
| 689 | /* disable master interrupt before clearing iir */ |
| 690 | de_ier = I915_READ(DEIER); |
| 691 | I915_WRITE(DEIER, de_ier & ~DE_MASTER_IRQ_CONTROL); |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 692 | |
| 693 | gt_iir = I915_READ(GTIIR); |
| 694 | if (gt_iir) { |
| 695 | snb_gt_irq_handler(dev, dev_priv, gt_iir); |
| 696 | I915_WRITE(GTIIR, gt_iir); |
| 697 | ret = IRQ_HANDLED; |
| 698 | } |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 699 | |
| 700 | de_iir = I915_READ(DEIIR); |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 701 | if (de_iir) { |
| 702 | if (de_iir & DE_GSE_IVB) |
| 703 | intel_opregion_gse_intr(dev); |
| 704 | |
| 705 | for (i = 0; i < 3; i++) { |
| 706 | if (de_iir & (DE_PLANEA_FLIP_DONE_IVB << (5 * i))) { |
| 707 | intel_prepare_page_flip(dev, i); |
| 708 | intel_finish_page_flip_plane(dev, i); |
| 709 | } |
| 710 | if (de_iir & (DE_PIPEA_VBLANK_IVB << (5 * i))) |
| 711 | drm_handle_vblank(dev, i); |
| 712 | } |
| 713 | |
| 714 | /* check event from PCH */ |
| 715 | if (de_iir & DE_PCH_EVENT_IVB) { |
| 716 | u32 pch_iir = I915_READ(SDEIIR); |
| 717 | |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 718 | cpt_irq_handler(dev, pch_iir); |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 719 | |
| 720 | /* clear PCH hotplug event before clear CPU irq */ |
| 721 | I915_WRITE(SDEIIR, pch_iir); |
| 722 | } |
| 723 | |
| 724 | I915_WRITE(DEIIR, de_iir); |
| 725 | ret = IRQ_HANDLED; |
| 726 | } |
| 727 | |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 728 | pm_iir = I915_READ(GEN6_PMIIR); |
Chris Wilson | 0e43406 | 2012-05-09 21:45:44 +0100 | [diff] [blame] | 729 | if (pm_iir) { |
| 730 | if (pm_iir & GEN6_PM_DEFERRED_EVENTS) |
| 731 | gen6_queue_rps_work(dev_priv, pm_iir); |
| 732 | I915_WRITE(GEN6_PMIIR, pm_iir); |
| 733 | ret = IRQ_HANDLED; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 734 | } |
| 735 | |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 736 | I915_WRITE(DEIER, de_ier); |
| 737 | POSTING_READ(DEIER); |
| 738 | |
| 739 | return ret; |
| 740 | } |
| 741 | |
Daniel Vetter | e7b4c6b | 2012-03-30 20:24:35 +0200 | [diff] [blame] | 742 | static void ilk_gt_irq_handler(struct drm_device *dev, |
| 743 | struct drm_i915_private *dev_priv, |
| 744 | u32 gt_iir) |
| 745 | { |
| 746 | if (gt_iir & (GT_USER_INTERRUPT | GT_PIPE_NOTIFY)) |
| 747 | notify_ring(dev, &dev_priv->ring[RCS]); |
| 748 | if (gt_iir & GT_BSD_USER_INTERRUPT) |
| 749 | notify_ring(dev, &dev_priv->ring[VCS]); |
| 750 | } |
| 751 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 752 | static irqreturn_t ironlake_irq_handler(int irq, void *arg) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 753 | { |
Jesse Barnes | 4697995 | 2011-04-07 13:53:55 -0700 | [diff] [blame] | 754 | struct drm_device *dev = (struct drm_device *) arg; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 755 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 756 | int ret = IRQ_NONE; |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 757 | u32 de_iir, gt_iir, de_ier, pch_iir, pm_iir; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 758 | |
Jesse Barnes | 4697995 | 2011-04-07 13:53:55 -0700 | [diff] [blame] | 759 | atomic_inc(&dev_priv->irq_received); |
| 760 | |
Zou, Nanhai | 2d109a8 | 2009-11-06 02:13:01 +0000 | [diff] [blame] | 761 | /* disable master interrupt before clearing iir */ |
| 762 | de_ier = I915_READ(DEIER); |
| 763 | I915_WRITE(DEIER, de_ier & ~DE_MASTER_IRQ_CONTROL); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 764 | POSTING_READ(DEIER); |
Zou, Nanhai | 2d109a8 | 2009-11-06 02:13:01 +0000 | [diff] [blame] | 765 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 766 | de_iir = I915_READ(DEIIR); |
| 767 | gt_iir = I915_READ(GTIIR); |
Zhenyu Wang | c650156 | 2009-11-03 18:57:21 +0000 | [diff] [blame] | 768 | pch_iir = I915_READ(SDEIIR); |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 769 | pm_iir = I915_READ(GEN6_PMIIR); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 770 | |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 771 | if (de_iir == 0 && gt_iir == 0 && pch_iir == 0 && |
| 772 | (!IS_GEN6(dev) || pm_iir == 0)) |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 773 | goto done; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 774 | |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 775 | ret = IRQ_HANDLED; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 776 | |
Daniel Vetter | e7b4c6b | 2012-03-30 20:24:35 +0200 | [diff] [blame] | 777 | if (IS_GEN5(dev)) |
| 778 | ilk_gt_irq_handler(dev, dev_priv, gt_iir); |
| 779 | else |
| 780 | snb_gt_irq_handler(dev, dev_priv, gt_iir); |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 781 | |
| 782 | if (de_iir & DE_GSE) |
Chris Wilson | 3b61796 | 2010-08-24 09:02:58 +0100 | [diff] [blame] | 783 | intel_opregion_gse_intr(dev); |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 784 | |
Zhenyu Wang | f072d2e | 2010-02-09 09:46:19 +0800 | [diff] [blame] | 785 | if (de_iir & DE_PLANEA_FLIP_DONE) { |
Jesse Barnes | 013d5aa | 2010-01-29 11:18:31 -0800 | [diff] [blame] | 786 | intel_prepare_page_flip(dev, 0); |
Chris Wilson | 2bbda38 | 2010-09-02 17:59:39 +0100 | [diff] [blame] | 787 | intel_finish_page_flip_plane(dev, 0); |
Jesse Barnes | 013d5aa | 2010-01-29 11:18:31 -0800 | [diff] [blame] | 788 | } |
| 789 | |
Zhenyu Wang | f072d2e | 2010-02-09 09:46:19 +0800 | [diff] [blame] | 790 | if (de_iir & DE_PLANEB_FLIP_DONE) { |
| 791 | intel_prepare_page_flip(dev, 1); |
Chris Wilson | 2bbda38 | 2010-09-02 17:59:39 +0100 | [diff] [blame] | 792 | intel_finish_page_flip_plane(dev, 1); |
Jesse Barnes | 013d5aa | 2010-01-29 11:18:31 -0800 | [diff] [blame] | 793 | } |
Li Peng | c062df6 | 2010-01-23 00:12:58 +0800 | [diff] [blame] | 794 | |
Zhenyu Wang | f072d2e | 2010-02-09 09:46:19 +0800 | [diff] [blame] | 795 | if (de_iir & DE_PIPEA_VBLANK) |
| 796 | drm_handle_vblank(dev, 0); |
| 797 | |
| 798 | if (de_iir & DE_PIPEB_VBLANK) |
| 799 | drm_handle_vblank(dev, 1); |
| 800 | |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 801 | /* check event from PCH */ |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 802 | if (de_iir & DE_PCH_EVENT) { |
Adam Jackson | 23e81d6 | 2012-06-06 15:45:44 -0400 | [diff] [blame] | 803 | if (HAS_PCH_CPT(dev)) |
| 804 | cpt_irq_handler(dev, pch_iir); |
| 805 | else |
| 806 | ibx_irq_handler(dev, pch_iir); |
Jesse Barnes | 776ad80 | 2011-01-04 15:09:39 -0800 | [diff] [blame] | 807 | } |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 808 | |
Daniel Vetter | 73edd18f | 2012-08-08 23:35:37 +0200 | [diff] [blame] | 809 | if (IS_GEN5(dev) && de_iir & DE_PCU_EVENT) |
| 810 | ironlake_handle_rps_change(dev); |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 811 | |
Chris Wilson | fc6826d | 2012-04-15 11:56:03 +0100 | [diff] [blame] | 812 | if (IS_GEN6(dev) && pm_iir & GEN6_PM_DEFERRED_EVENTS) |
| 813 | gen6_queue_rps_work(dev_priv, pm_iir); |
Jesse Barnes | 3b8d8d9 | 2010-12-17 14:19:02 -0800 | [diff] [blame] | 814 | |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 815 | /* should clear PCH hotplug event before clear CPU irq */ |
| 816 | I915_WRITE(SDEIIR, pch_iir); |
| 817 | I915_WRITE(GTIIR, gt_iir); |
| 818 | I915_WRITE(DEIIR, de_iir); |
Ben Widawsky | 4912d04 | 2011-04-25 11:25:20 -0700 | [diff] [blame] | 819 | I915_WRITE(GEN6_PMIIR, pm_iir); |
Zou Nan hai | c7c8510 | 2010-01-15 10:29:06 +0800 | [diff] [blame] | 820 | |
| 821 | done: |
Zou, Nanhai | 2d109a8 | 2009-11-06 02:13:01 +0000 | [diff] [blame] | 822 | I915_WRITE(DEIER, de_ier); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 823 | POSTING_READ(DEIER); |
Zou, Nanhai | 2d109a8 | 2009-11-06 02:13:01 +0000 | [diff] [blame] | 824 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 825 | return ret; |
| 826 | } |
| 827 | |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 828 | /** |
| 829 | * i915_error_work_func - do process context error handling work |
| 830 | * @work: work struct |
| 831 | * |
| 832 | * Fire an error uevent so userspace can see that a hang or error |
| 833 | * was detected. |
| 834 | */ |
| 835 | static void i915_error_work_func(struct work_struct *work) |
| 836 | { |
| 837 | drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, |
| 838 | error_work); |
| 839 | struct drm_device *dev = dev_priv->dev; |
Ben Gamari | f316a42 | 2009-09-14 17:48:46 -0400 | [diff] [blame] | 840 | char *error_event[] = { "ERROR=1", NULL }; |
| 841 | char *reset_event[] = { "RESET=1", NULL }; |
| 842 | char *reset_done_event[] = { "ERROR=0", NULL }; |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 843 | |
Ben Gamari | f316a42 | 2009-09-14 17:48:46 -0400 | [diff] [blame] | 844 | kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, error_event); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 845 | |
Ben Gamari | ba1234d | 2009-09-14 17:48:47 -0400 | [diff] [blame] | 846 | if (atomic_read(&dev_priv->mm.wedged)) { |
Chris Wilson | f803aa5 | 2010-09-19 12:38:26 +0100 | [diff] [blame] | 847 | DRM_DEBUG_DRIVER("resetting chip\n"); |
| 848 | kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, reset_event); |
Daniel Vetter | d4b8bb2 | 2012-04-27 15:17:44 +0200 | [diff] [blame] | 849 | if (!i915_reset(dev)) { |
Chris Wilson | f803aa5 | 2010-09-19 12:38:26 +0100 | [diff] [blame] | 850 | atomic_set(&dev_priv->mm.wedged, 0); |
| 851 | kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, reset_done_event); |
Ben Gamari | f316a42 | 2009-09-14 17:48:46 -0400 | [diff] [blame] | 852 | } |
Chris Wilson | 30dbf0c | 2010-09-25 10:19:17 +0100 | [diff] [blame] | 853 | complete_all(&dev_priv->error_completion); |
Ben Gamari | f316a42 | 2009-09-14 17:48:46 -0400 | [diff] [blame] | 854 | } |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 855 | } |
| 856 | |
Daniel Vetter | 85f9e50 | 2012-08-31 21:42:26 +0200 | [diff] [blame] | 857 | /* NB: please notice the memset */ |
| 858 | static void i915_get_extra_instdone(struct drm_device *dev, |
| 859 | uint32_t *instdone) |
| 860 | { |
| 861 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 862 | memset(instdone, 0, sizeof(*instdone) * I915_NUM_INSTDONE_REG); |
| 863 | |
| 864 | switch(INTEL_INFO(dev)->gen) { |
| 865 | case 2: |
| 866 | case 3: |
| 867 | instdone[0] = I915_READ(INSTDONE); |
| 868 | break; |
| 869 | case 4: |
| 870 | case 5: |
| 871 | case 6: |
| 872 | instdone[0] = I915_READ(INSTDONE_I965); |
| 873 | instdone[1] = I915_READ(INSTDONE1); |
| 874 | break; |
| 875 | default: |
| 876 | WARN_ONCE(1, "Unsupported platform\n"); |
| 877 | case 7: |
| 878 | instdone[0] = I915_READ(GEN7_INSTDONE_1); |
| 879 | instdone[1] = I915_READ(GEN7_SC_INSTDONE); |
| 880 | instdone[2] = I915_READ(GEN7_SAMPLER_INSTDONE); |
| 881 | instdone[3] = I915_READ(GEN7_ROW_INSTDONE); |
| 882 | break; |
| 883 | } |
| 884 | } |
| 885 | |
Chris Wilson | 3bd3c93 | 2010-08-19 08:19:30 +0100 | [diff] [blame] | 886 | #ifdef CONFIG_DEBUG_FS |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 887 | static struct drm_i915_error_object * |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 888 | i915_error_object_create(struct drm_i915_private *dev_priv, |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 889 | struct drm_i915_gem_object *src) |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 890 | { |
| 891 | struct drm_i915_error_object *dst; |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 892 | int i, count; |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 893 | u32 reloc_offset; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 894 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 895 | if (src == NULL || src->pages == NULL) |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 896 | return NULL; |
| 897 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 898 | count = src->base.size / PAGE_SIZE; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 899 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 900 | dst = kmalloc(sizeof(*dst) + count * sizeof(u32 *), GFP_ATOMIC); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 901 | if (dst == NULL) |
| 902 | return NULL; |
| 903 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 904 | reloc_offset = src->gtt_offset; |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 905 | for (i = 0; i < count; i++) { |
Andrew Morton | 788885a | 2010-05-11 14:07:05 -0700 | [diff] [blame] | 906 | unsigned long flags; |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 907 | void *d; |
Andrew Morton | 788885a | 2010-05-11 14:07:05 -0700 | [diff] [blame] | 908 | |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 909 | d = kmalloc(PAGE_SIZE, GFP_ATOMIC); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 910 | if (d == NULL) |
| 911 | goto unwind; |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 912 | |
Andrew Morton | 788885a | 2010-05-11 14:07:05 -0700 | [diff] [blame] | 913 | local_irq_save(flags); |
Daniel Vetter | 74898d7 | 2012-02-15 23:50:22 +0100 | [diff] [blame] | 914 | if (reloc_offset < dev_priv->mm.gtt_mappable_end && |
| 915 | src->has_global_gtt_mapping) { |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 916 | void __iomem *s; |
| 917 | |
| 918 | /* Simply ignore tiling or any overlapping fence. |
| 919 | * It's part of the error state, and this hopefully |
| 920 | * captures what the GPU read. |
| 921 | */ |
| 922 | |
| 923 | s = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping, |
| 924 | reloc_offset); |
| 925 | memcpy_fromio(d, s, PAGE_SIZE); |
| 926 | io_mapping_unmap_atomic(s); |
| 927 | } else { |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 928 | struct page *page; |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 929 | void *s; |
| 930 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 931 | page = i915_gem_object_get_page(src, i); |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 932 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 933 | drm_clflush_pages(&page, 1); |
| 934 | |
| 935 | s = kmap_atomic(page); |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 936 | memcpy(d, s, PAGE_SIZE); |
| 937 | kunmap_atomic(s); |
| 938 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 939 | drm_clflush_pages(&page, 1); |
Chris Wilson | 172975aa | 2011-12-14 13:57:25 +0100 | [diff] [blame] | 940 | } |
Andrew Morton | 788885a | 2010-05-11 14:07:05 -0700 | [diff] [blame] | 941 | local_irq_restore(flags); |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 942 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 943 | dst->pages[i] = d; |
Chris Wilson | e56660d | 2010-08-07 11:01:26 +0100 | [diff] [blame] | 944 | |
| 945 | reloc_offset += PAGE_SIZE; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 946 | } |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 947 | dst->page_count = count; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 948 | dst->gtt_offset = src->gtt_offset; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 949 | |
| 950 | return dst; |
| 951 | |
| 952 | unwind: |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 953 | while (i--) |
| 954 | kfree(dst->pages[i]); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 955 | kfree(dst); |
| 956 | return NULL; |
| 957 | } |
| 958 | |
| 959 | static void |
| 960 | i915_error_object_free(struct drm_i915_error_object *obj) |
| 961 | { |
| 962 | int page; |
| 963 | |
| 964 | if (obj == NULL) |
| 965 | return; |
| 966 | |
| 967 | for (page = 0; page < obj->page_count; page++) |
| 968 | kfree(obj->pages[page]); |
| 969 | |
| 970 | kfree(obj); |
| 971 | } |
| 972 | |
Daniel Vetter | 742cbee | 2012-04-27 15:17:39 +0200 | [diff] [blame] | 973 | void |
| 974 | i915_error_state_free(struct kref *error_ref) |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 975 | { |
Daniel Vetter | 742cbee | 2012-04-27 15:17:39 +0200 | [diff] [blame] | 976 | struct drm_i915_error_state *error = container_of(error_ref, |
| 977 | typeof(*error), ref); |
Chris Wilson | e2f973d | 2011-01-27 19:15:11 +0000 | [diff] [blame] | 978 | int i; |
| 979 | |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 980 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { |
| 981 | i915_error_object_free(error->ring[i].batchbuffer); |
| 982 | i915_error_object_free(error->ring[i].ringbuffer); |
| 983 | kfree(error->ring[i].requests); |
| 984 | } |
Chris Wilson | e2f973d | 2011-01-27 19:15:11 +0000 | [diff] [blame] | 985 | |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 986 | kfree(error->active_bo); |
Chris Wilson | 6ef3d42 | 2010-08-04 20:26:07 +0100 | [diff] [blame] | 987 | kfree(error->overlay); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 988 | kfree(error); |
| 989 | } |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 990 | static void capture_bo(struct drm_i915_error_buffer *err, |
| 991 | struct drm_i915_gem_object *obj) |
| 992 | { |
| 993 | err->size = obj->base.size; |
| 994 | err->name = obj->base.name; |
Chris Wilson | 0201f1e | 2012-07-20 12:41:01 +0100 | [diff] [blame] | 995 | err->rseqno = obj->last_read_seqno; |
| 996 | err->wseqno = obj->last_write_seqno; |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 997 | err->gtt_offset = obj->gtt_offset; |
| 998 | err->read_domains = obj->base.read_domains; |
| 999 | err->write_domain = obj->base.write_domain; |
| 1000 | err->fence_reg = obj->fence_reg; |
| 1001 | err->pinned = 0; |
| 1002 | if (obj->pin_count > 0) |
| 1003 | err->pinned = 1; |
| 1004 | if (obj->user_pin_count > 0) |
| 1005 | err->pinned = -1; |
| 1006 | err->tiling = obj->tiling_mode; |
| 1007 | err->dirty = obj->dirty; |
| 1008 | err->purgeable = obj->madv != I915_MADV_WILLNEED; |
| 1009 | err->ring = obj->ring ? obj->ring->id : -1; |
| 1010 | err->cache_level = obj->cache_level; |
| 1011 | } |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1012 | |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1013 | static u32 capture_active_bo(struct drm_i915_error_buffer *err, |
| 1014 | int count, struct list_head *head) |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1015 | { |
| 1016 | struct drm_i915_gem_object *obj; |
| 1017 | int i = 0; |
| 1018 | |
| 1019 | list_for_each_entry(obj, head, mm_list) { |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1020 | capture_bo(err++, obj); |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1021 | if (++i == count) |
| 1022 | break; |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1023 | } |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1024 | |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1025 | return i; |
| 1026 | } |
| 1027 | |
| 1028 | static u32 capture_pinned_bo(struct drm_i915_error_buffer *err, |
| 1029 | int count, struct list_head *head) |
| 1030 | { |
| 1031 | struct drm_i915_gem_object *obj; |
| 1032 | int i = 0; |
| 1033 | |
| 1034 | list_for_each_entry(obj, head, gtt_list) { |
| 1035 | if (obj->pin_count == 0) |
| 1036 | continue; |
| 1037 | |
| 1038 | capture_bo(err++, obj); |
| 1039 | if (++i == count) |
| 1040 | break; |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1041 | } |
| 1042 | |
| 1043 | return i; |
| 1044 | } |
| 1045 | |
Chris Wilson | 748ebc6 | 2010-10-24 10:28:47 +0100 | [diff] [blame] | 1046 | static void i915_gem_record_fences(struct drm_device *dev, |
| 1047 | struct drm_i915_error_state *error) |
| 1048 | { |
| 1049 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1050 | int i; |
| 1051 | |
| 1052 | /* Fences */ |
| 1053 | switch (INTEL_INFO(dev)->gen) { |
Daniel Vetter | 775d17b | 2011-10-09 21:52:01 +0200 | [diff] [blame] | 1054 | case 7: |
Chris Wilson | 748ebc6 | 2010-10-24 10:28:47 +0100 | [diff] [blame] | 1055 | case 6: |
| 1056 | for (i = 0; i < 16; i++) |
| 1057 | error->fence[i] = I915_READ64(FENCE_REG_SANDYBRIDGE_0 + (i * 8)); |
| 1058 | break; |
| 1059 | case 5: |
| 1060 | case 4: |
| 1061 | for (i = 0; i < 16; i++) |
| 1062 | error->fence[i] = I915_READ64(FENCE_REG_965_0 + (i * 8)); |
| 1063 | break; |
| 1064 | case 3: |
| 1065 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
| 1066 | for (i = 0; i < 8; i++) |
| 1067 | error->fence[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4)); |
| 1068 | case 2: |
| 1069 | for (i = 0; i < 8; i++) |
| 1070 | error->fence[i] = I915_READ(FENCE_REG_830_0 + (i * 4)); |
| 1071 | break; |
| 1072 | |
| 1073 | } |
| 1074 | } |
| 1075 | |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1076 | static struct drm_i915_error_object * |
| 1077 | i915_error_first_batchbuffer(struct drm_i915_private *dev_priv, |
| 1078 | struct intel_ring_buffer *ring) |
| 1079 | { |
| 1080 | struct drm_i915_gem_object *obj; |
| 1081 | u32 seqno; |
| 1082 | |
| 1083 | if (!ring->get_seqno) |
| 1084 | return NULL; |
| 1085 | |
Chris Wilson | b2eadbc | 2012-08-09 10:58:30 +0100 | [diff] [blame] | 1086 | seqno = ring->get_seqno(ring, false); |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1087 | list_for_each_entry(obj, &dev_priv->mm.active_list, mm_list) { |
| 1088 | if (obj->ring != ring) |
| 1089 | continue; |
| 1090 | |
Chris Wilson | 0201f1e | 2012-07-20 12:41:01 +0100 | [diff] [blame] | 1091 | if (i915_seqno_passed(seqno, obj->last_read_seqno)) |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1092 | continue; |
| 1093 | |
| 1094 | if ((obj->base.read_domains & I915_GEM_DOMAIN_COMMAND) == 0) |
| 1095 | continue; |
| 1096 | |
| 1097 | /* We need to copy these to an anonymous buffer as the simplest |
| 1098 | * method to avoid being overwritten by userspace. |
| 1099 | */ |
| 1100 | return i915_error_object_create(dev_priv, obj); |
| 1101 | } |
| 1102 | |
| 1103 | return NULL; |
| 1104 | } |
| 1105 | |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1106 | static void i915_record_ring_state(struct drm_device *dev, |
| 1107 | struct drm_i915_error_state *error, |
| 1108 | struct intel_ring_buffer *ring) |
| 1109 | { |
| 1110 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1111 | |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1112 | if (INTEL_INFO(dev)->gen >= 6) { |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1113 | error->rc_psmi[ring->id] = I915_READ(ring->mmio_base + 0x50); |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1114 | error->fault_reg[ring->id] = I915_READ(RING_FAULT_REG(ring)); |
Daniel Vetter | 7e3b873 | 2012-02-01 22:26:45 +0100 | [diff] [blame] | 1115 | error->semaphore_mboxes[ring->id][0] |
| 1116 | = I915_READ(RING_SYNC_0(ring->mmio_base)); |
| 1117 | error->semaphore_mboxes[ring->id][1] |
| 1118 | = I915_READ(RING_SYNC_1(ring->mmio_base)); |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1119 | } |
Daniel Vetter | c1cd90e | 2011-12-14 13:57:02 +0100 | [diff] [blame] | 1120 | |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1121 | if (INTEL_INFO(dev)->gen >= 4) { |
Daniel Vetter | 9d2f41f | 2012-04-02 21:41:45 +0200 | [diff] [blame] | 1122 | error->faddr[ring->id] = I915_READ(RING_DMA_FADD(ring->mmio_base)); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1123 | error->ipeir[ring->id] = I915_READ(RING_IPEIR(ring->mmio_base)); |
| 1124 | error->ipehr[ring->id] = I915_READ(RING_IPEHR(ring->mmio_base)); |
| 1125 | error->instdone[ring->id] = I915_READ(RING_INSTDONE(ring->mmio_base)); |
Daniel Vetter | c1cd90e | 2011-12-14 13:57:02 +0100 | [diff] [blame] | 1126 | error->instps[ring->id] = I915_READ(RING_INSTPS(ring->mmio_base)); |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1127 | if (ring->id == RCS) |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1128 | error->bbaddr = I915_READ64(BB_ADDR); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1129 | } else { |
Daniel Vetter | 9d2f41f | 2012-04-02 21:41:45 +0200 | [diff] [blame] | 1130 | error->faddr[ring->id] = I915_READ(DMA_FADD_I8XX); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1131 | error->ipeir[ring->id] = I915_READ(IPEIR); |
| 1132 | error->ipehr[ring->id] = I915_READ(IPEHR); |
| 1133 | error->instdone[ring->id] = I915_READ(INSTDONE); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1134 | } |
| 1135 | |
Ben Widawsky | 9574b3f | 2012-04-26 16:03:01 -0700 | [diff] [blame] | 1136 | error->waiting[ring->id] = waitqueue_active(&ring->irq_queue); |
Daniel Vetter | c1cd90e | 2011-12-14 13:57:02 +0100 | [diff] [blame] | 1137 | error->instpm[ring->id] = I915_READ(RING_INSTPM(ring->mmio_base)); |
Chris Wilson | b2eadbc | 2012-08-09 10:58:30 +0100 | [diff] [blame] | 1138 | error->seqno[ring->id] = ring->get_seqno(ring, false); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1139 | error->acthd[ring->id] = intel_ring_get_active_head(ring); |
Daniel Vetter | c1cd90e | 2011-12-14 13:57:02 +0100 | [diff] [blame] | 1140 | error->head[ring->id] = I915_READ_HEAD(ring); |
| 1141 | error->tail[ring->id] = I915_READ_TAIL(ring); |
Daniel Vetter | 7e3b873 | 2012-02-01 22:26:45 +0100 | [diff] [blame] | 1142 | |
| 1143 | error->cpu_ring_head[ring->id] = ring->head; |
| 1144 | error->cpu_ring_tail[ring->id] = ring->tail; |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1145 | } |
| 1146 | |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1147 | static void i915_gem_record_rings(struct drm_device *dev, |
| 1148 | struct drm_i915_error_state *error) |
| 1149 | { |
| 1150 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1151 | struct intel_ring_buffer *ring; |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1152 | struct drm_i915_gem_request *request; |
| 1153 | int i, count; |
| 1154 | |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1155 | for_each_ring(ring, dev_priv, i) { |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1156 | i915_record_ring_state(dev, error, ring); |
| 1157 | |
| 1158 | error->ring[i].batchbuffer = |
| 1159 | i915_error_first_batchbuffer(dev_priv, ring); |
| 1160 | |
| 1161 | error->ring[i].ringbuffer = |
| 1162 | i915_error_object_create(dev_priv, ring->obj); |
| 1163 | |
| 1164 | count = 0; |
| 1165 | list_for_each_entry(request, &ring->request_list, list) |
| 1166 | count++; |
| 1167 | |
| 1168 | error->ring[i].num_requests = count; |
| 1169 | error->ring[i].requests = |
| 1170 | kmalloc(count*sizeof(struct drm_i915_error_request), |
| 1171 | GFP_ATOMIC); |
| 1172 | if (error->ring[i].requests == NULL) { |
| 1173 | error->ring[i].num_requests = 0; |
| 1174 | continue; |
| 1175 | } |
| 1176 | |
| 1177 | count = 0; |
| 1178 | list_for_each_entry(request, &ring->request_list, list) { |
| 1179 | struct drm_i915_error_request *erq; |
| 1180 | |
| 1181 | erq = &error->ring[i].requests[count++]; |
| 1182 | erq->seqno = request->seqno; |
| 1183 | erq->jiffies = request->emitted_jiffies; |
Chris Wilson | ee4f42b | 2012-02-15 11:25:38 +0000 | [diff] [blame] | 1184 | erq->tail = request->tail; |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1185 | } |
| 1186 | } |
| 1187 | } |
| 1188 | |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1189 | /** |
| 1190 | * i915_capture_error_state - capture an error record for later analysis |
| 1191 | * @dev: drm device |
| 1192 | * |
| 1193 | * Should be called when an error is detected (either a hang or an error |
| 1194 | * interrupt) to capture error state from the time of the error. Fills |
| 1195 | * out a structure which becomes available in debugfs for user level tools |
| 1196 | * to pick up. |
| 1197 | */ |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1198 | static void i915_capture_error_state(struct drm_device *dev) |
| 1199 | { |
| 1200 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1201 | struct drm_i915_gem_object *obj; |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1202 | struct drm_i915_error_state *error; |
| 1203 | unsigned long flags; |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1204 | int i, pipe; |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1205 | |
| 1206 | spin_lock_irqsave(&dev_priv->error_lock, flags); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1207 | error = dev_priv->first_error; |
| 1208 | spin_unlock_irqrestore(&dev_priv->error_lock, flags); |
| 1209 | if (error) |
| 1210 | return; |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1211 | |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1212 | /* Account for pipe specific data like PIPE*STAT */ |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1213 | error = kzalloc(sizeof(*error), GFP_ATOMIC); |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1214 | if (!error) { |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1215 | DRM_DEBUG_DRIVER("out of memory, not capturing error state\n"); |
| 1216 | return; |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1217 | } |
| 1218 | |
Chris Wilson | b6f7833 | 2011-02-01 14:15:55 +0000 | [diff] [blame] | 1219 | DRM_INFO("capturing error event; look for more information in /debug/dri/%d/i915_error_state\n", |
| 1220 | dev->primary->index); |
Chris Wilson | 2fa772f | 2010-10-01 13:23:27 +0100 | [diff] [blame] | 1221 | |
Daniel Vetter | 742cbee | 2012-04-27 15:17:39 +0200 | [diff] [blame] | 1222 | kref_init(&error->ref); |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1223 | error->eir = I915_READ(EIR); |
| 1224 | error->pgtbl_er = I915_READ(PGTBL_ER); |
Ben Widawsky | b9a3906 | 2012-06-04 14:42:52 -0700 | [diff] [blame] | 1225 | error->ccid = I915_READ(CCID); |
Ben Widawsky | be998e2 | 2012-04-26 16:03:00 -0700 | [diff] [blame] | 1226 | |
| 1227 | if (HAS_PCH_SPLIT(dev)) |
| 1228 | error->ier = I915_READ(DEIER) | I915_READ(GTIER); |
| 1229 | else if (IS_VALLEYVIEW(dev)) |
| 1230 | error->ier = I915_READ(GTIER) | I915_READ(VLV_IER); |
| 1231 | else if (IS_GEN2(dev)) |
| 1232 | error->ier = I915_READ16(IER); |
| 1233 | else |
| 1234 | error->ier = I915_READ(IER); |
| 1235 | |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1236 | for_each_pipe(pipe) |
| 1237 | error->pipestat[pipe] = I915_READ(PIPESTAT(pipe)); |
Daniel Vetter | d27b1e0 | 2011-12-14 13:57:01 +0100 | [diff] [blame] | 1238 | |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1239 | if (INTEL_INFO(dev)->gen >= 6) { |
Chris Wilson | f406839 | 2010-10-27 20:36:41 +0100 | [diff] [blame] | 1240 | error->error = I915_READ(ERROR_GEN6); |
Daniel Vetter | 33f3f51 | 2011-12-14 13:57:39 +0100 | [diff] [blame] | 1241 | error->done_reg = I915_READ(DONE_REG); |
| 1242 | } |
Chris Wilson | add354d | 2010-10-29 19:00:51 +0100 | [diff] [blame] | 1243 | |
Ben Widawsky | 71e172e | 2012-08-20 16:15:13 -0700 | [diff] [blame] | 1244 | if (INTEL_INFO(dev)->gen == 7) |
| 1245 | error->err_int = I915_READ(GEN7_ERR_INT); |
| 1246 | |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1247 | i915_get_extra_instdone(dev, error->extra_instdone); |
| 1248 | |
Chris Wilson | 748ebc6 | 2010-10-24 10:28:47 +0100 | [diff] [blame] | 1249 | i915_gem_record_fences(dev, error); |
Chris Wilson | 52d39a2 | 2012-02-15 11:25:37 +0000 | [diff] [blame] | 1250 | i915_gem_record_rings(dev, error); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1251 | |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1252 | /* Record buffers on the active and pinned lists. */ |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1253 | error->active_bo = NULL; |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1254 | error->pinned_bo = NULL; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1255 | |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1256 | i = 0; |
| 1257 | list_for_each_entry(obj, &dev_priv->mm.active_list, mm_list) |
| 1258 | i++; |
| 1259 | error->active_bo_count = i; |
Chris Wilson | 6c085a7 | 2012-08-20 11:40:46 +0200 | [diff] [blame] | 1260 | list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1261 | if (obj->pin_count) |
| 1262 | i++; |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1263 | error->pinned_bo_count = i - error->active_bo_count; |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1264 | |
Chris Wilson | 8e934db | 2011-01-24 12:34:00 +0000 | [diff] [blame] | 1265 | error->active_bo = NULL; |
| 1266 | error->pinned_bo = NULL; |
Chris Wilson | bcfb2e2 | 2011-01-07 21:06:07 +0000 | [diff] [blame] | 1267 | if (i) { |
| 1268 | error->active_bo = kmalloc(sizeof(*error->active_bo)*i, |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1269 | GFP_ATOMIC); |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1270 | if (error->active_bo) |
| 1271 | error->pinned_bo = |
| 1272 | error->active_bo + error->active_bo_count; |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1273 | } |
| 1274 | |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1275 | if (error->active_bo) |
| 1276 | error->active_bo_count = |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1277 | capture_active_bo(error->active_bo, |
| 1278 | error->active_bo_count, |
| 1279 | &dev_priv->mm.active_list); |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1280 | |
| 1281 | if (error->pinned_bo) |
| 1282 | error->pinned_bo_count = |
Chris Wilson | 1b50247 | 2012-04-24 15:47:30 +0100 | [diff] [blame] | 1283 | capture_pinned_bo(error->pinned_bo, |
| 1284 | error->pinned_bo_count, |
Chris Wilson | 6c085a7 | 2012-08-20 11:40:46 +0200 | [diff] [blame] | 1285 | &dev_priv->mm.bound_list); |
Chris Wilson | c724e8a | 2010-11-22 08:07:02 +0000 | [diff] [blame] | 1286 | |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1287 | do_gettimeofday(&error->time); |
| 1288 | |
Chris Wilson | 6ef3d42 | 2010-08-04 20:26:07 +0100 | [diff] [blame] | 1289 | error->overlay = intel_overlay_capture_error_state(dev); |
Chris Wilson | c4a1d9e | 2010-11-21 13:12:35 +0000 | [diff] [blame] | 1290 | error->display = intel_display_capture_error_state(dev); |
Chris Wilson | 6ef3d42 | 2010-08-04 20:26:07 +0100 | [diff] [blame] | 1291 | |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1292 | spin_lock_irqsave(&dev_priv->error_lock, flags); |
| 1293 | if (dev_priv->first_error == NULL) { |
| 1294 | dev_priv->first_error = error; |
| 1295 | error = NULL; |
| 1296 | } |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1297 | spin_unlock_irqrestore(&dev_priv->error_lock, flags); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1298 | |
| 1299 | if (error) |
Daniel Vetter | 742cbee | 2012-04-27 15:17:39 +0200 | [diff] [blame] | 1300 | i915_error_state_free(&error->ref); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1301 | } |
| 1302 | |
| 1303 | void i915_destroy_error_state(struct drm_device *dev) |
| 1304 | { |
| 1305 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1306 | struct drm_i915_error_state *error; |
Ben Widawsky | 6dc0e81 | 2012-01-23 15:30:02 -0800 | [diff] [blame] | 1307 | unsigned long flags; |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1308 | |
Ben Widawsky | 6dc0e81 | 2012-01-23 15:30:02 -0800 | [diff] [blame] | 1309 | spin_lock_irqsave(&dev_priv->error_lock, flags); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1310 | error = dev_priv->first_error; |
| 1311 | dev_priv->first_error = NULL; |
Ben Widawsky | 6dc0e81 | 2012-01-23 15:30:02 -0800 | [diff] [blame] | 1312 | spin_unlock_irqrestore(&dev_priv->error_lock, flags); |
Chris Wilson | 9df3079 | 2010-02-18 10:24:56 +0000 | [diff] [blame] | 1313 | |
| 1314 | if (error) |
Daniel Vetter | 742cbee | 2012-04-27 15:17:39 +0200 | [diff] [blame] | 1315 | kref_put(&error->ref, i915_error_state_free); |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1316 | } |
Chris Wilson | 3bd3c93 | 2010-08-19 08:19:30 +0100 | [diff] [blame] | 1317 | #else |
| 1318 | #define i915_capture_error_state(x) |
| 1319 | #endif |
Jesse Barnes | 63eeaf3 | 2009-06-18 16:56:52 -0700 | [diff] [blame] | 1320 | |
Chris Wilson | 35aed2e | 2010-05-27 13:18:12 +0100 | [diff] [blame] | 1321 | static void i915_report_and_clear_eir(struct drm_device *dev) |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1322 | { |
| 1323 | struct drm_i915_private *dev_priv = dev->dev_private; |
Ben Widawsky | bd9854f | 2012-08-23 15:18:09 -0700 | [diff] [blame] | 1324 | uint32_t instdone[I915_NUM_INSTDONE_REG]; |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1325 | u32 eir = I915_READ(EIR); |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1326 | int pipe, i; |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1327 | |
Chris Wilson | 35aed2e | 2010-05-27 13:18:12 +0100 | [diff] [blame] | 1328 | if (!eir) |
| 1329 | return; |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1330 | |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1331 | pr_err("render error detected, EIR: 0x%08x\n", eir); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1332 | |
Ben Widawsky | bd9854f | 2012-08-23 15:18:09 -0700 | [diff] [blame] | 1333 | i915_get_extra_instdone(dev, instdone); |
| 1334 | |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1335 | if (IS_G4X(dev)) { |
| 1336 | if (eir & (GM45_ERROR_MEM_PRIV | GM45_ERROR_CP_PRIV)) { |
| 1337 | u32 ipeir = I915_READ(IPEIR_I965); |
| 1338 | |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1339 | pr_err(" IPEIR: 0x%08x\n", I915_READ(IPEIR_I965)); |
| 1340 | pr_err(" IPEHR: 0x%08x\n", I915_READ(IPEHR_I965)); |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1341 | for (i = 0; i < ARRAY_SIZE(instdone); i++) |
| 1342 | pr_err(" INSTDONE_%d: 0x%08x\n", i, instdone[i]); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1343 | pr_err(" INSTPS: 0x%08x\n", I915_READ(INSTPS)); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1344 | pr_err(" ACTHD: 0x%08x\n", I915_READ(ACTHD_I965)); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1345 | I915_WRITE(IPEIR_I965, ipeir); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1346 | POSTING_READ(IPEIR_I965); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1347 | } |
| 1348 | if (eir & GM45_ERROR_PAGE_TABLE) { |
| 1349 | u32 pgtbl_err = I915_READ(PGTBL_ER); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1350 | pr_err("page table error\n"); |
| 1351 | pr_err(" PGTBL_ER: 0x%08x\n", pgtbl_err); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1352 | I915_WRITE(PGTBL_ER, pgtbl_err); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1353 | POSTING_READ(PGTBL_ER); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1354 | } |
| 1355 | } |
| 1356 | |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 1357 | if (!IS_GEN2(dev)) { |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1358 | if (eir & I915_ERROR_PAGE_TABLE) { |
| 1359 | u32 pgtbl_err = I915_READ(PGTBL_ER); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1360 | pr_err("page table error\n"); |
| 1361 | pr_err(" PGTBL_ER: 0x%08x\n", pgtbl_err); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1362 | I915_WRITE(PGTBL_ER, pgtbl_err); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1363 | POSTING_READ(PGTBL_ER); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1364 | } |
| 1365 | } |
| 1366 | |
| 1367 | if (eir & I915_ERROR_MEMORY_REFRESH) { |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1368 | pr_err("memory refresh error:\n"); |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1369 | for_each_pipe(pipe) |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1370 | pr_err("pipe %c stat: 0x%08x\n", |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1371 | pipe_name(pipe), I915_READ(PIPESTAT(pipe))); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1372 | /* pipestat has already been acked */ |
| 1373 | } |
| 1374 | if (eir & I915_ERROR_INSTRUCTION) { |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1375 | pr_err("instruction error\n"); |
| 1376 | pr_err(" INSTPM: 0x%08x\n", I915_READ(INSTPM)); |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1377 | for (i = 0; i < ARRAY_SIZE(instdone); i++) |
| 1378 | pr_err(" INSTDONE_%d: 0x%08x\n", i, instdone[i]); |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 1379 | if (INTEL_INFO(dev)->gen < 4) { |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1380 | u32 ipeir = I915_READ(IPEIR); |
| 1381 | |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1382 | pr_err(" IPEIR: 0x%08x\n", I915_READ(IPEIR)); |
| 1383 | pr_err(" IPEHR: 0x%08x\n", I915_READ(IPEHR)); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1384 | pr_err(" ACTHD: 0x%08x\n", I915_READ(ACTHD)); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1385 | I915_WRITE(IPEIR, ipeir); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1386 | POSTING_READ(IPEIR); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1387 | } else { |
| 1388 | u32 ipeir = I915_READ(IPEIR_I965); |
| 1389 | |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1390 | pr_err(" IPEIR: 0x%08x\n", I915_READ(IPEIR_I965)); |
| 1391 | pr_err(" IPEHR: 0x%08x\n", I915_READ(IPEHR_I965)); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1392 | pr_err(" INSTPS: 0x%08x\n", I915_READ(INSTPS)); |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 1393 | pr_err(" ACTHD: 0x%08x\n", I915_READ(ACTHD_I965)); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1394 | I915_WRITE(IPEIR_I965, ipeir); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1395 | POSTING_READ(IPEIR_I965); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1396 | } |
| 1397 | } |
| 1398 | |
| 1399 | I915_WRITE(EIR, eir); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1400 | POSTING_READ(EIR); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1401 | eir = I915_READ(EIR); |
| 1402 | if (eir) { |
| 1403 | /* |
| 1404 | * some errors might have become stuck, |
| 1405 | * mask them. |
| 1406 | */ |
| 1407 | DRM_ERROR("EIR stuck: 0x%08x, masking\n", eir); |
| 1408 | I915_WRITE(EMR, I915_READ(EMR) | eir); |
| 1409 | I915_WRITE(IIR, I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT); |
| 1410 | } |
Chris Wilson | 35aed2e | 2010-05-27 13:18:12 +0100 | [diff] [blame] | 1411 | } |
| 1412 | |
| 1413 | /** |
| 1414 | * i915_handle_error - handle an error interrupt |
| 1415 | * @dev: drm device |
| 1416 | * |
| 1417 | * Do some basic checking of regsiter state at error interrupt time and |
| 1418 | * dump it to the syslog. Also call i915_capture_error_state() to make |
| 1419 | * sure we get a record and make it available in debugfs. Fire a uevent |
| 1420 | * so userspace knows something bad happened (should trigger collection |
| 1421 | * of a ring dump etc.). |
| 1422 | */ |
Chris Wilson | 527f9e9 | 2010-11-11 01:16:58 +0000 | [diff] [blame] | 1423 | void i915_handle_error(struct drm_device *dev, bool wedged) |
Chris Wilson | 35aed2e | 2010-05-27 13:18:12 +0100 | [diff] [blame] | 1424 | { |
| 1425 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1426 | struct intel_ring_buffer *ring; |
| 1427 | int i; |
Chris Wilson | 35aed2e | 2010-05-27 13:18:12 +0100 | [diff] [blame] | 1428 | |
| 1429 | i915_capture_error_state(dev); |
| 1430 | i915_report_and_clear_eir(dev); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1431 | |
Ben Gamari | ba1234d | 2009-09-14 17:48:47 -0400 | [diff] [blame] | 1432 | if (wedged) { |
Chris Wilson | 30dbf0c | 2010-09-25 10:19:17 +0100 | [diff] [blame] | 1433 | INIT_COMPLETION(dev_priv->error_completion); |
Ben Gamari | ba1234d | 2009-09-14 17:48:47 -0400 | [diff] [blame] | 1434 | atomic_set(&dev_priv->mm.wedged, 1); |
| 1435 | |
Ben Gamari | 11ed50e | 2009-09-14 17:48:45 -0400 | [diff] [blame] | 1436 | /* |
| 1437 | * Wakeup waiting processes so they don't hang |
| 1438 | */ |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1439 | for_each_ring(ring, dev_priv, i) |
| 1440 | wake_up_all(&ring->irq_queue); |
Ben Gamari | 11ed50e | 2009-09-14 17:48:45 -0400 | [diff] [blame] | 1441 | } |
| 1442 | |
Eric Anholt | 9c9fe1f | 2009-08-03 16:09:16 -0700 | [diff] [blame] | 1443 | queue_work(dev_priv->wq, &dev_priv->error_work); |
Jesse Barnes | 8a90523 | 2009-07-11 16:48:03 -0400 | [diff] [blame] | 1444 | } |
| 1445 | |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 1446 | static void i915_pageflip_stall_check(struct drm_device *dev, int pipe) |
| 1447 | { |
| 1448 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 1449 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; |
| 1450 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1451 | struct drm_i915_gem_object *obj; |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 1452 | struct intel_unpin_work *work; |
| 1453 | unsigned long flags; |
| 1454 | bool stall_detected; |
| 1455 | |
| 1456 | /* Ignore early vblank irqs */ |
| 1457 | if (intel_crtc == NULL) |
| 1458 | return; |
| 1459 | |
| 1460 | spin_lock_irqsave(&dev->event_lock, flags); |
| 1461 | work = intel_crtc->unpin_work; |
| 1462 | |
| 1463 | if (work == NULL || work->pending || !work->enable_stall_check) { |
| 1464 | /* Either the pending flip IRQ arrived, or we're too early. Don't check */ |
| 1465 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 1466 | return; |
| 1467 | } |
| 1468 | |
| 1469 | /* 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] | 1470 | obj = work->pending_flip_obj; |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 1471 | if (INTEL_INFO(dev)->gen >= 4) { |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1472 | int dspsurf = DSPSURF(intel_crtc->plane); |
Armin Reese | 446f254 | 2012-03-30 16:20:16 -0700 | [diff] [blame] | 1473 | stall_detected = I915_HI_DISPBASE(I915_READ(dspsurf)) == |
| 1474 | obj->gtt_offset; |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 1475 | } else { |
Jesse Barnes | 9db4a9c | 2011-02-07 12:26:52 -0800 | [diff] [blame] | 1476 | int dspaddr = DSPADDR(intel_crtc->plane); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1477 | stall_detected = I915_READ(dspaddr) == (obj->gtt_offset + |
Ville Syrjälä | 01f2c77 | 2011-12-20 00:06:49 +0200 | [diff] [blame] | 1478 | crtc->y * crtc->fb->pitches[0] + |
Simon Farnsworth | 4e5359c | 2010-09-01 17:47:52 +0100 | [diff] [blame] | 1479 | crtc->x * crtc->fb->bits_per_pixel/8); |
| 1480 | } |
| 1481 | |
| 1482 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 1483 | |
| 1484 | if (stall_detected) { |
| 1485 | DRM_DEBUG_DRIVER("Pageflip stall detected\n"); |
| 1486 | intel_prepare_page_flip(dev, intel_crtc->plane); |
| 1487 | } |
| 1488 | } |
| 1489 | |
Keith Packard | 42f52ef | 2008-10-18 19:39:29 -0700 | [diff] [blame] | 1490 | /* Called from drm generic code, passed 'crtc' which |
| 1491 | * we use as a pipe index |
| 1492 | */ |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 1493 | static int i915_enable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 1494 | { |
| 1495 | 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] | 1496 | unsigned long irqflags; |
Jesse Barnes | 71e0ffa | 2009-01-08 10:42:15 -0800 | [diff] [blame] | 1497 | |
Chris Wilson | 5eddb70 | 2010-09-11 13:48:45 +0100 | [diff] [blame] | 1498 | if (!i915_pipe_enabled(dev, pipe)) |
Jesse Barnes | 71e0ffa | 2009-01-08 10:42:15 -0800 | [diff] [blame] | 1499 | return -EINVAL; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 1500 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1501 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Jesse Barnes | f796cf8 | 2011-04-07 13:58:17 -0700 | [diff] [blame] | 1502 | if (INTEL_INFO(dev)->gen >= 4) |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 1503 | i915_enable_pipestat(dev_priv, pipe, |
| 1504 | PIPE_START_VBLANK_INTERRUPT_ENABLE); |
Keith Packard | e9d21d7 | 2008-10-16 11:31:38 -0700 | [diff] [blame] | 1505 | else |
Keith Packard | 7c46358 | 2008-11-04 02:03:27 -0800 | [diff] [blame] | 1506 | i915_enable_pipestat(dev_priv, pipe, |
| 1507 | PIPE_VBLANK_INTERRUPT_ENABLE); |
Chris Wilson | 8692d00e | 2011-02-05 10:08:21 +0000 | [diff] [blame] | 1508 | |
| 1509 | /* maintain vblank delivery even in deep C-states */ |
| 1510 | if (dev_priv->info->gen == 3) |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 1511 | I915_WRITE(INSTPM, _MASKED_BIT_DISABLE(INSTPM_AGPBUSY_DIS)); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1512 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
Chris Wilson | 8692d00e | 2011-02-05 10:08:21 +0000 | [diff] [blame] | 1513 | |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 1514 | return 0; |
| 1515 | } |
| 1516 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 1517 | static int ironlake_enable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | f796cf8 | 2011-04-07 13:58:17 -0700 | [diff] [blame] | 1518 | { |
| 1519 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1520 | unsigned long irqflags; |
| 1521 | |
| 1522 | if (!i915_pipe_enabled(dev, pipe)) |
| 1523 | return -EINVAL; |
| 1524 | |
| 1525 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 1526 | ironlake_enable_display_irq(dev_priv, (pipe == 0) ? |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1527 | DE_PIPEA_VBLANK : DE_PIPEB_VBLANK); |
Jesse Barnes | f796cf8 | 2011-04-07 13:58:17 -0700 | [diff] [blame] | 1528 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 1529 | |
| 1530 | return 0; |
| 1531 | } |
| 1532 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 1533 | static int ivybridge_enable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1534 | { |
| 1535 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1536 | unsigned long irqflags; |
| 1537 | |
| 1538 | if (!i915_pipe_enabled(dev, pipe)) |
| 1539 | return -EINVAL; |
| 1540 | |
| 1541 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Chris Wilson | b615b57 | 2012-05-02 09:52:12 +0100 | [diff] [blame] | 1542 | ironlake_enable_display_irq(dev_priv, |
| 1543 | DE_PIPEA_VBLANK_IVB << (5 * pipe)); |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1544 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 1545 | |
| 1546 | return 0; |
| 1547 | } |
| 1548 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1549 | static int valleyview_enable_vblank(struct drm_device *dev, int pipe) |
| 1550 | { |
| 1551 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1552 | unsigned long irqflags; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1553 | u32 imr; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1554 | |
| 1555 | if (!i915_pipe_enabled(dev, pipe)) |
| 1556 | return -EINVAL; |
| 1557 | |
| 1558 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1559 | imr = I915_READ(VLV_IMR); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1560 | if (pipe == 0) |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1561 | imr &= ~I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1562 | else |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1563 | imr &= ~I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1564 | I915_WRITE(VLV_IMR, imr); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1565 | i915_enable_pipestat(dev_priv, pipe, |
| 1566 | PIPE_START_VBLANK_INTERRUPT_ENABLE); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1567 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 1568 | |
| 1569 | return 0; |
| 1570 | } |
| 1571 | |
Keith Packard | 42f52ef | 2008-10-18 19:39:29 -0700 | [diff] [blame] | 1572 | /* Called from drm generic code, passed 'crtc' which |
| 1573 | * we use as a pipe index |
| 1574 | */ |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 1575 | static void i915_disable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 1576 | { |
| 1577 | 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] | 1578 | unsigned long irqflags; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 1579 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1580 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Chris Wilson | 8692d00e | 2011-02-05 10:08:21 +0000 | [diff] [blame] | 1581 | if (dev_priv->info->gen == 3) |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 1582 | I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_AGPBUSY_DIS)); |
Chris Wilson | 8692d00e | 2011-02-05 10:08:21 +0000 | [diff] [blame] | 1583 | |
Jesse Barnes | f796cf8 | 2011-04-07 13:58:17 -0700 | [diff] [blame] | 1584 | i915_disable_pipestat(dev_priv, pipe, |
| 1585 | PIPE_VBLANK_INTERRUPT_ENABLE | |
| 1586 | PIPE_START_VBLANK_INTERRUPT_ENABLE); |
| 1587 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 1588 | } |
| 1589 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 1590 | static void ironlake_disable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | f796cf8 | 2011-04-07 13:58:17 -0700 | [diff] [blame] | 1591 | { |
| 1592 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1593 | unsigned long irqflags; |
| 1594 | |
| 1595 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 1596 | ironlake_disable_display_irq(dev_priv, (pipe == 0) ? |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1597 | DE_PIPEA_VBLANK : DE_PIPEB_VBLANK); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1598 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 1599 | } |
| 1600 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 1601 | static void ivybridge_disable_vblank(struct drm_device *dev, int pipe) |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1602 | { |
| 1603 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1604 | unsigned long irqflags; |
| 1605 | |
| 1606 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Chris Wilson | b615b57 | 2012-05-02 09:52:12 +0100 | [diff] [blame] | 1607 | ironlake_disable_display_irq(dev_priv, |
| 1608 | DE_PIPEA_VBLANK_IVB << (pipe * 5)); |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1609 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 1610 | } |
| 1611 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1612 | static void valleyview_disable_vblank(struct drm_device *dev, int pipe) |
| 1613 | { |
| 1614 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1615 | unsigned long irqflags; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1616 | u32 imr; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1617 | |
| 1618 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1619 | i915_disable_pipestat(dev_priv, pipe, |
| 1620 | PIPE_START_VBLANK_INTERRUPT_ENABLE); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1621 | imr = I915_READ(VLV_IMR); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1622 | if (pipe == 0) |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1623 | imr |= I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1624 | else |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1625 | imr |= I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1626 | I915_WRITE(VLV_IMR, imr); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1627 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 1628 | } |
| 1629 | |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 1630 | static u32 |
| 1631 | ring_last_seqno(struct intel_ring_buffer *ring) |
Zou Nan hai | 852835f | 2010-05-21 09:08:56 +0800 | [diff] [blame] | 1632 | { |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 1633 | return list_entry(ring->request_list.prev, |
| 1634 | struct drm_i915_gem_request, list)->seqno; |
| 1635 | } |
| 1636 | |
| 1637 | static bool i915_hangcheck_ring_idle(struct intel_ring_buffer *ring, bool *err) |
| 1638 | { |
| 1639 | if (list_empty(&ring->request_list) || |
Chris Wilson | b2eadbc | 2012-08-09 10:58:30 +0100 | [diff] [blame] | 1640 | i915_seqno_passed(ring->get_seqno(ring, false), |
| 1641 | ring_last_seqno(ring))) { |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 1642 | /* Issue a wake-up to catch stuck h/w. */ |
Ben Widawsky | 9574b3f | 2012-04-26 16:03:01 -0700 | [diff] [blame] | 1643 | if (waitqueue_active(&ring->irq_queue)) { |
| 1644 | DRM_ERROR("Hangcheck timer elapsed... %s idle\n", |
| 1645 | ring->name); |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 1646 | wake_up_all(&ring->irq_queue); |
| 1647 | *err = true; |
| 1648 | } |
| 1649 | return true; |
| 1650 | } |
| 1651 | return false; |
Ben Gamari | f65d942 | 2009-09-14 17:48:44 -0400 | [diff] [blame] | 1652 | } |
| 1653 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1654 | static bool kick_ring(struct intel_ring_buffer *ring) |
| 1655 | { |
| 1656 | struct drm_device *dev = ring->dev; |
| 1657 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1658 | u32 tmp = I915_READ_CTL(ring); |
| 1659 | if (tmp & RING_WAIT) { |
| 1660 | DRM_ERROR("Kicking stuck wait on %s\n", |
| 1661 | ring->name); |
| 1662 | I915_WRITE_CTL(ring, tmp); |
| 1663 | return true; |
| 1664 | } |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1665 | return false; |
| 1666 | } |
| 1667 | |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 1668 | static bool i915_hangcheck_hung(struct drm_device *dev) |
| 1669 | { |
| 1670 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 1671 | |
| 1672 | if (dev_priv->hangcheck_count++ > 1) { |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1673 | bool hung = true; |
| 1674 | |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 1675 | DRM_ERROR("Hangcheck timer elapsed... GPU hung\n"); |
| 1676 | i915_handle_error(dev, true); |
| 1677 | |
| 1678 | if (!IS_GEN2(dev)) { |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1679 | struct intel_ring_buffer *ring; |
| 1680 | int i; |
| 1681 | |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 1682 | /* Is the chip hanging on a WAIT_FOR_EVENT? |
| 1683 | * If so we can simply poke the RB_WAIT bit |
| 1684 | * and break the hang. This should work on |
| 1685 | * all but the second generation chipsets. |
| 1686 | */ |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1687 | for_each_ring(ring, dev_priv, i) |
| 1688 | hung &= !kick_ring(ring); |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 1689 | } |
| 1690 | |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1691 | return hung; |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 1692 | } |
| 1693 | |
| 1694 | return false; |
| 1695 | } |
| 1696 | |
Ben Gamari | f65d942 | 2009-09-14 17:48:44 -0400 | [diff] [blame] | 1697 | /** |
| 1698 | * This is called when the chip hasn't reported back with completed |
| 1699 | * batchbuffers in a long time. The first time this is called we simply record |
| 1700 | * ACTHD. If ACTHD hasn't changed by the time the hangcheck timer elapses |
| 1701 | * again, we assume the chip is wedged and try to fix it. |
| 1702 | */ |
| 1703 | void i915_hangcheck_elapsed(unsigned long data) |
| 1704 | { |
| 1705 | struct drm_device *dev = (struct drm_device *)data; |
| 1706 | drm_i915_private_t *dev_priv = dev->dev_private; |
Ben Widawsky | bd9854f | 2012-08-23 15:18:09 -0700 | [diff] [blame] | 1707 | uint32_t acthd[I915_NUM_RINGS], instdone[I915_NUM_INSTDONE_REG]; |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1708 | struct intel_ring_buffer *ring; |
| 1709 | bool err = false, idle; |
| 1710 | int i; |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 1711 | |
Ben Widawsky | 3e0dc6b | 2011-06-29 10:26:42 -0700 | [diff] [blame] | 1712 | if (!i915_enable_hangcheck) |
| 1713 | return; |
| 1714 | |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1715 | memset(acthd, 0, sizeof(acthd)); |
| 1716 | idle = true; |
| 1717 | for_each_ring(ring, dev_priv, i) { |
| 1718 | idle &= i915_hangcheck_ring_idle(ring, &err); |
| 1719 | acthd[i] = intel_ring_get_active_head(ring); |
| 1720 | } |
| 1721 | |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 1722 | /* If all work is done then ACTHD clearly hasn't advanced. */ |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1723 | if (idle) { |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 1724 | if (err) { |
| 1725 | if (i915_hangcheck_hung(dev)) |
| 1726 | return; |
| 1727 | |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 1728 | goto repeat; |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 1729 | } |
| 1730 | |
| 1731 | dev_priv->hangcheck_count = 0; |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 1732 | return; |
| 1733 | } |
Eric Anholt | b9201c1 | 2010-01-08 14:25:16 -0800 | [diff] [blame] | 1734 | |
Ben Widawsky | bd9854f | 2012-08-23 15:18:09 -0700 | [diff] [blame] | 1735 | i915_get_extra_instdone(dev, instdone); |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1736 | if (memcmp(dev_priv->last_acthd, acthd, sizeof(acthd)) == 0 && |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1737 | memcmp(dev_priv->prev_instdone, instdone, sizeof(instdone)) == 0) { |
Chris Wilson | d1e61e7 | 2012-04-10 17:00:41 +0100 | [diff] [blame] | 1738 | if (i915_hangcheck_hung(dev)) |
Chris Wilson | cbb465e | 2010-06-06 12:16:24 +0100 | [diff] [blame] | 1739 | return; |
Chris Wilson | cbb465e | 2010-06-06 12:16:24 +0100 | [diff] [blame] | 1740 | } else { |
| 1741 | dev_priv->hangcheck_count = 0; |
| 1742 | |
Chris Wilson | b451951 | 2012-05-11 14:29:30 +0100 | [diff] [blame] | 1743 | memcpy(dev_priv->last_acthd, acthd, sizeof(acthd)); |
Ben Widawsky | 050ee91 | 2012-08-22 11:32:15 -0700 | [diff] [blame] | 1744 | memcpy(dev_priv->prev_instdone, instdone, sizeof(instdone)); |
Chris Wilson | cbb465e | 2010-06-06 12:16:24 +0100 | [diff] [blame] | 1745 | } |
Ben Gamari | f65d942 | 2009-09-14 17:48:44 -0400 | [diff] [blame] | 1746 | |
Chris Wilson | 893eead | 2010-10-27 14:44:35 +0100 | [diff] [blame] | 1747 | repeat: |
Ben Gamari | f65d942 | 2009-09-14 17:48:44 -0400 | [diff] [blame] | 1748 | /* Reset timer case chip hangs without another request being added */ |
Chris Wilson | b3b079d | 2010-09-13 23:44:34 +0100 | [diff] [blame] | 1749 | mod_timer(&dev_priv->hangcheck_timer, |
Chris Wilson | cecc21f | 2012-10-05 17:02:56 +0100 | [diff] [blame] | 1750 | round_jiffies_up(jiffies + DRM_I915_HANGCHECK_JIFFIES)); |
Ben Gamari | f65d942 | 2009-09-14 17:48:44 -0400 | [diff] [blame] | 1751 | } |
| 1752 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1753 | /* drm_dma.h hooks |
| 1754 | */ |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 1755 | static void ironlake_irq_preinstall(struct drm_device *dev) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1756 | { |
| 1757 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1758 | |
Jesse Barnes | 4697995 | 2011-04-07 13:53:55 -0700 | [diff] [blame] | 1759 | atomic_set(&dev_priv->irq_received, 0); |
| 1760 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1761 | I915_WRITE(HWSTAM, 0xeffe); |
Daniel Vetter | bdfcdb6 | 2012-01-05 01:05:26 +0100 | [diff] [blame] | 1762 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1763 | /* XXX hotplug from PCH */ |
| 1764 | |
| 1765 | I915_WRITE(DEIMR, 0xffffffff); |
| 1766 | I915_WRITE(DEIER, 0x0); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1767 | POSTING_READ(DEIER); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1768 | |
| 1769 | /* and GT */ |
| 1770 | I915_WRITE(GTIMR, 0xffffffff); |
| 1771 | I915_WRITE(GTIER, 0x0); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1772 | POSTING_READ(GTIER); |
Zhenyu Wang | c650156 | 2009-11-03 18:57:21 +0000 | [diff] [blame] | 1773 | |
| 1774 | /* south display irq */ |
| 1775 | I915_WRITE(SDEIMR, 0xffffffff); |
| 1776 | I915_WRITE(SDEIER, 0x0); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1777 | POSTING_READ(SDEIER); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1778 | } |
| 1779 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1780 | static void valleyview_irq_preinstall(struct drm_device *dev) |
| 1781 | { |
| 1782 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1783 | int pipe; |
| 1784 | |
| 1785 | atomic_set(&dev_priv->irq_received, 0); |
| 1786 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1787 | /* VLV magic */ |
| 1788 | I915_WRITE(VLV_IMR, 0); |
| 1789 | I915_WRITE(RING_IMR(RENDER_RING_BASE), 0); |
| 1790 | I915_WRITE(RING_IMR(GEN6_BSD_RING_BASE), 0); |
| 1791 | I915_WRITE(RING_IMR(BLT_RING_BASE), 0); |
| 1792 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1793 | /* and GT */ |
| 1794 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
| 1795 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
| 1796 | I915_WRITE(GTIMR, 0xffffffff); |
| 1797 | I915_WRITE(GTIER, 0x0); |
| 1798 | POSTING_READ(GTIER); |
| 1799 | |
| 1800 | I915_WRITE(DPINVGTT, 0xff); |
| 1801 | |
| 1802 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 1803 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
| 1804 | for_each_pipe(pipe) |
| 1805 | I915_WRITE(PIPESTAT(pipe), 0xffff); |
| 1806 | I915_WRITE(VLV_IIR, 0xffffffff); |
| 1807 | I915_WRITE(VLV_IMR, 0xffffffff); |
| 1808 | I915_WRITE(VLV_IER, 0x0); |
| 1809 | POSTING_READ(VLV_IER); |
| 1810 | } |
| 1811 | |
Keith Packard | 7fe0b97 | 2011-09-19 13:31:02 -0700 | [diff] [blame] | 1812 | /* |
| 1813 | * Enable digital hotplug on the PCH, and configure the DP short pulse |
| 1814 | * duration to 2ms (which is the minimum in the Display Port spec) |
| 1815 | * |
| 1816 | * This register is the same on all known PCH chips. |
| 1817 | */ |
| 1818 | |
| 1819 | static void ironlake_enable_pch_hotplug(struct drm_device *dev) |
| 1820 | { |
| 1821 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1822 | u32 hotplug; |
| 1823 | |
| 1824 | hotplug = I915_READ(PCH_PORT_HOTPLUG); |
| 1825 | hotplug &= ~(PORTD_PULSE_DURATION_MASK|PORTC_PULSE_DURATION_MASK|PORTB_PULSE_DURATION_MASK); |
| 1826 | hotplug |= PORTD_HOTPLUG_ENABLE | PORTD_PULSE_DURATION_2ms; |
| 1827 | hotplug |= PORTC_HOTPLUG_ENABLE | PORTC_PULSE_DURATION_2ms; |
| 1828 | hotplug |= PORTB_HOTPLUG_ENABLE | PORTB_PULSE_DURATION_2ms; |
| 1829 | I915_WRITE(PCH_PORT_HOTPLUG, hotplug); |
| 1830 | } |
| 1831 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 1832 | static int ironlake_irq_postinstall(struct drm_device *dev) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1833 | { |
| 1834 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1835 | /* enable kind of interrupts always enabled */ |
Jesse Barnes | 013d5aa | 2010-01-29 11:18:31 -0800 | [diff] [blame] | 1836 | u32 display_mask = DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT | |
| 1837 | DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1838 | u32 render_irqs; |
Yuanhan Liu | 2d7b836 | 2010-10-08 10:21:06 +0100 | [diff] [blame] | 1839 | u32 hotplug_mask; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1840 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1841 | dev_priv->irq_mask = ~display_mask; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1842 | |
| 1843 | /* should always can generate irq */ |
| 1844 | I915_WRITE(DEIIR, I915_READ(DEIIR)); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1845 | I915_WRITE(DEIMR, dev_priv->irq_mask); |
| 1846 | I915_WRITE(DEIER, display_mask | DE_PIPEA_VBLANK | DE_PIPEB_VBLANK); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1847 | POSTING_READ(DEIER); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1848 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1849 | dev_priv->gt_irq_mask = ~0; |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1850 | |
| 1851 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1852 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1853 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1854 | if (IS_GEN6(dev)) |
| 1855 | render_irqs = |
| 1856 | GT_USER_INTERRUPT | |
Ben Widawsky | e2a1e2f | 2012-03-29 19:11:26 -0700 | [diff] [blame] | 1857 | GEN6_BSD_USER_INTERRUPT | |
| 1858 | GEN6_BLITTER_USER_INTERRUPT; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1859 | else |
| 1860 | render_irqs = |
Chris Wilson | 88f23b8 | 2010-12-05 15:08:31 +0000 | [diff] [blame] | 1861 | GT_USER_INTERRUPT | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 1862 | GT_PIPE_NOTIFY | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1863 | GT_BSD_USER_INTERRUPT; |
| 1864 | I915_WRITE(GTIER, render_irqs); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1865 | POSTING_READ(GTIER); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1866 | |
Yuanhan Liu | 2d7b836 | 2010-10-08 10:21:06 +0100 | [diff] [blame] | 1867 | if (HAS_PCH_CPT(dev)) { |
Chris Wilson | 9035a97 | 2011-02-16 09:36:05 +0000 | [diff] [blame] | 1868 | hotplug_mask = (SDE_CRT_HOTPLUG_CPT | |
| 1869 | SDE_PORTB_HOTPLUG_CPT | |
| 1870 | SDE_PORTC_HOTPLUG_CPT | |
| 1871 | SDE_PORTD_HOTPLUG_CPT); |
Yuanhan Liu | 2d7b836 | 2010-10-08 10:21:06 +0100 | [diff] [blame] | 1872 | } else { |
Chris Wilson | 9035a97 | 2011-02-16 09:36:05 +0000 | [diff] [blame] | 1873 | hotplug_mask = (SDE_CRT_HOTPLUG | |
| 1874 | SDE_PORTB_HOTPLUG | |
| 1875 | SDE_PORTC_HOTPLUG | |
| 1876 | SDE_PORTD_HOTPLUG | |
| 1877 | SDE_AUX_MASK); |
Yuanhan Liu | 2d7b836 | 2010-10-08 10:21:06 +0100 | [diff] [blame] | 1878 | } |
| 1879 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1880 | dev_priv->pch_irq_mask = ~hotplug_mask; |
Zhenyu Wang | c650156 | 2009-11-03 18:57:21 +0000 | [diff] [blame] | 1881 | |
| 1882 | I915_WRITE(SDEIIR, I915_READ(SDEIIR)); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1883 | I915_WRITE(SDEIMR, dev_priv->pch_irq_mask); |
| 1884 | I915_WRITE(SDEIER, hotplug_mask); |
Chris Wilson | 3143a2b | 2010-11-16 15:55:10 +0000 | [diff] [blame] | 1885 | POSTING_READ(SDEIER); |
Zhenyu Wang | c650156 | 2009-11-03 18:57:21 +0000 | [diff] [blame] | 1886 | |
Keith Packard | 7fe0b97 | 2011-09-19 13:31:02 -0700 | [diff] [blame] | 1887 | ironlake_enable_pch_hotplug(dev); |
| 1888 | |
Jesse Barnes | f97108d | 2010-01-29 11:27:07 -0800 | [diff] [blame] | 1889 | if (IS_IRONLAKE_M(dev)) { |
| 1890 | /* Clear & enable PCU event interrupts */ |
| 1891 | I915_WRITE(DEIIR, DE_PCU_EVENT); |
| 1892 | I915_WRITE(DEIER, I915_READ(DEIER) | DE_PCU_EVENT); |
| 1893 | ironlake_enable_display_irq(dev_priv, DE_PCU_EVENT); |
| 1894 | } |
| 1895 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 1896 | return 0; |
| 1897 | } |
| 1898 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 1899 | static int ivybridge_irq_postinstall(struct drm_device *dev) |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1900 | { |
| 1901 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 1902 | /* enable kind of interrupts always enabled */ |
Chris Wilson | b615b57 | 2012-05-02 09:52:12 +0100 | [diff] [blame] | 1903 | u32 display_mask = |
| 1904 | DE_MASTER_IRQ_CONTROL | DE_GSE_IVB | DE_PCH_EVENT_IVB | |
| 1905 | DE_PLANEC_FLIP_DONE_IVB | |
| 1906 | DE_PLANEB_FLIP_DONE_IVB | |
| 1907 | DE_PLANEA_FLIP_DONE_IVB; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1908 | u32 render_irqs; |
| 1909 | u32 hotplug_mask; |
| 1910 | |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1911 | dev_priv->irq_mask = ~display_mask; |
| 1912 | |
| 1913 | /* should always can generate irq */ |
| 1914 | I915_WRITE(DEIIR, I915_READ(DEIIR)); |
| 1915 | I915_WRITE(DEIMR, dev_priv->irq_mask); |
Chris Wilson | b615b57 | 2012-05-02 09:52:12 +0100 | [diff] [blame] | 1916 | I915_WRITE(DEIER, |
| 1917 | display_mask | |
| 1918 | DE_PIPEC_VBLANK_IVB | |
| 1919 | DE_PIPEB_VBLANK_IVB | |
| 1920 | DE_PIPEA_VBLANK_IVB); |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1921 | POSTING_READ(DEIER); |
| 1922 | |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 1923 | dev_priv->gt_irq_mask = ~GT_GEN7_L3_PARITY_ERROR_INTERRUPT; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1924 | |
| 1925 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
| 1926 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 1927 | |
Ben Widawsky | e2a1e2f | 2012-03-29 19:11:26 -0700 | [diff] [blame] | 1928 | render_irqs = GT_USER_INTERRUPT | GEN6_BSD_USER_INTERRUPT | |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 1929 | GEN6_BLITTER_USER_INTERRUPT | GT_GEN7_L3_PARITY_ERROR_INTERRUPT; |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1930 | I915_WRITE(GTIER, render_irqs); |
| 1931 | POSTING_READ(GTIER); |
| 1932 | |
| 1933 | hotplug_mask = (SDE_CRT_HOTPLUG_CPT | |
| 1934 | SDE_PORTB_HOTPLUG_CPT | |
| 1935 | SDE_PORTC_HOTPLUG_CPT | |
| 1936 | SDE_PORTD_HOTPLUG_CPT); |
| 1937 | dev_priv->pch_irq_mask = ~hotplug_mask; |
| 1938 | |
| 1939 | I915_WRITE(SDEIIR, I915_READ(SDEIIR)); |
| 1940 | I915_WRITE(SDEIMR, dev_priv->pch_irq_mask); |
| 1941 | I915_WRITE(SDEIER, hotplug_mask); |
| 1942 | POSTING_READ(SDEIER); |
| 1943 | |
Keith Packard | 7fe0b97 | 2011-09-19 13:31:02 -0700 | [diff] [blame] | 1944 | ironlake_enable_pch_hotplug(dev); |
| 1945 | |
Jesse Barnes | b1f14ad | 2011-04-06 12:13:38 -0700 | [diff] [blame] | 1946 | return 0; |
| 1947 | } |
| 1948 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1949 | static int valleyview_irq_postinstall(struct drm_device *dev) |
| 1950 | { |
| 1951 | 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] | 1952 | u32 enable_mask; |
| 1953 | u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1954 | u32 pipestat_enable = PLANE_FLIP_DONE_INT_EN_VLV; |
Jesse Barnes | 3bcedbe | 2012-09-19 13:29:01 -0700 | [diff] [blame] | 1955 | u32 render_irqs; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1956 | u16 msid; |
| 1957 | |
| 1958 | enable_mask = I915_DISPLAY_PORT_INTERRUPT; |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1959 | enable_mask |= I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 1960 | I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT | |
| 1961 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1962 | I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT; |
| 1963 | |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1964 | /* |
| 1965 | *Leave vblank interrupts masked initially. enable/disable will |
| 1966 | * toggle them based on usage. |
| 1967 | */ |
| 1968 | dev_priv->irq_mask = (~enable_mask) | |
| 1969 | I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT | |
| 1970 | I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT; |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1971 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1972 | dev_priv->pipestat[0] = 0; |
| 1973 | dev_priv->pipestat[1] = 0; |
| 1974 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1975 | /* Hack for broken MSIs on VLV */ |
| 1976 | pci_write_config_dword(dev_priv->dev->pdev, 0x94, 0xfee00000); |
| 1977 | pci_read_config_word(dev->pdev, 0x98, &msid); |
| 1978 | msid &= 0xff; /* mask out delivery bits */ |
| 1979 | msid |= (1<<14); |
| 1980 | pci_write_config_word(dev_priv->dev->pdev, 0x98, msid); |
| 1981 | |
| 1982 | I915_WRITE(VLV_IMR, dev_priv->irq_mask); |
| 1983 | I915_WRITE(VLV_IER, enable_mask); |
| 1984 | I915_WRITE(VLV_IIR, 0xffffffff); |
| 1985 | I915_WRITE(PIPESTAT(0), 0xffff); |
| 1986 | I915_WRITE(PIPESTAT(1), 0xffff); |
| 1987 | POSTING_READ(VLV_IER); |
| 1988 | |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1989 | i915_enable_pipestat(dev_priv, 0, pipestat_enable); |
| 1990 | i915_enable_pipestat(dev_priv, 1, pipestat_enable); |
| 1991 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1992 | I915_WRITE(VLV_IIR, 0xffffffff); |
| 1993 | I915_WRITE(VLV_IIR, 0xffffffff); |
| 1994 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 1995 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
Jesse Barnes | 31acc7f | 2012-06-20 10:53:11 -0700 | [diff] [blame] | 1996 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
Jesse Barnes | 3bcedbe | 2012-09-19 13:29:01 -0700 | [diff] [blame] | 1997 | |
| 1998 | render_irqs = GT_USER_INTERRUPT | GEN6_BSD_USER_INTERRUPT | |
| 1999 | GEN6_BLITTER_USER_INTERRUPT; |
| 2000 | I915_WRITE(GTIER, render_irqs); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2001 | POSTING_READ(GTIER); |
| 2002 | |
| 2003 | /* ack & enable invalid PTE error interrupts */ |
| 2004 | #if 0 /* FIXME: add support to irq handler for checking these bits */ |
| 2005 | I915_WRITE(DPINVGTT, DPINVGTT_STATUS_MASK); |
| 2006 | I915_WRITE(DPINVGTT, DPINVGTT_EN_MASK); |
| 2007 | #endif |
| 2008 | |
| 2009 | I915_WRITE(VLV_MASTER_IER, MASTER_INTERRUPT_ENABLE); |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2010 | /* Note HDMI and DP share bits */ |
| 2011 | if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS) |
| 2012 | hotplug_en |= HDMIB_HOTPLUG_INT_EN; |
| 2013 | if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS) |
| 2014 | hotplug_en |= HDMIC_HOTPLUG_INT_EN; |
| 2015 | if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS) |
| 2016 | hotplug_en |= HDMID_HOTPLUG_INT_EN; |
Vijay Purushothaman | ae33cdcf | 2012-09-27 19:13:02 +0530 | [diff] [blame] | 2017 | if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS_I915) |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2018 | hotplug_en |= SDVOC_HOTPLUG_INT_EN; |
Vijay Purushothaman | ae33cdcf | 2012-09-27 19:13:02 +0530 | [diff] [blame] | 2019 | if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS_I915) |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2020 | hotplug_en |= SDVOB_HOTPLUG_INT_EN; |
| 2021 | if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) { |
| 2022 | hotplug_en |= CRT_HOTPLUG_INT_EN; |
| 2023 | hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50; |
| 2024 | } |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2025 | |
| 2026 | I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); |
| 2027 | |
| 2028 | return 0; |
| 2029 | } |
| 2030 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2031 | static void valleyview_irq_uninstall(struct drm_device *dev) |
| 2032 | { |
| 2033 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2034 | int pipe; |
| 2035 | |
| 2036 | if (!dev_priv) |
| 2037 | return; |
| 2038 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2039 | for_each_pipe(pipe) |
| 2040 | I915_WRITE(PIPESTAT(pipe), 0xffff); |
| 2041 | |
| 2042 | I915_WRITE(HWSTAM, 0xffffffff); |
| 2043 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 2044 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
| 2045 | for_each_pipe(pipe) |
| 2046 | I915_WRITE(PIPESTAT(pipe), 0xffff); |
| 2047 | I915_WRITE(VLV_IIR, 0xffffffff); |
| 2048 | I915_WRITE(VLV_IMR, 0xffffffff); |
| 2049 | I915_WRITE(VLV_IER, 0x0); |
| 2050 | POSTING_READ(VLV_IER); |
| 2051 | } |
| 2052 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2053 | static void ironlake_irq_uninstall(struct drm_device *dev) |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2054 | { |
| 2055 | 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] | 2056 | |
| 2057 | if (!dev_priv) |
| 2058 | return; |
| 2059 | |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2060 | I915_WRITE(HWSTAM, 0xffffffff); |
| 2061 | |
| 2062 | I915_WRITE(DEIMR, 0xffffffff); |
| 2063 | I915_WRITE(DEIER, 0x0); |
| 2064 | I915_WRITE(DEIIR, I915_READ(DEIIR)); |
| 2065 | |
| 2066 | I915_WRITE(GTIMR, 0xffffffff); |
| 2067 | I915_WRITE(GTIER, 0x0); |
| 2068 | I915_WRITE(GTIIR, I915_READ(GTIIR)); |
Keith Packard | 192aac1f | 2011-09-20 10:12:44 -0700 | [diff] [blame] | 2069 | |
| 2070 | I915_WRITE(SDEIMR, 0xffffffff); |
| 2071 | I915_WRITE(SDEIER, 0x0); |
| 2072 | I915_WRITE(SDEIIR, I915_READ(SDEIIR)); |
Zhenyu Wang | 036a4a7 | 2009-06-08 14:40:19 +0800 | [diff] [blame] | 2073 | } |
| 2074 | |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2075 | static void i8xx_irq_preinstall(struct drm_device * dev) |
| 2076 | { |
| 2077 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2078 | int pipe; |
| 2079 | |
| 2080 | atomic_set(&dev_priv->irq_received, 0); |
| 2081 | |
| 2082 | for_each_pipe(pipe) |
| 2083 | I915_WRITE(PIPESTAT(pipe), 0); |
| 2084 | I915_WRITE16(IMR, 0xffff); |
| 2085 | I915_WRITE16(IER, 0x0); |
| 2086 | POSTING_READ16(IER); |
| 2087 | } |
| 2088 | |
| 2089 | static int i8xx_irq_postinstall(struct drm_device *dev) |
| 2090 | { |
| 2091 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2092 | |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2093 | dev_priv->pipestat[0] = 0; |
| 2094 | dev_priv->pipestat[1] = 0; |
| 2095 | |
| 2096 | I915_WRITE16(EMR, |
| 2097 | ~(I915_ERROR_PAGE_TABLE | I915_ERROR_MEMORY_REFRESH)); |
| 2098 | |
| 2099 | /* Unmask the interrupts that we always want on. */ |
| 2100 | dev_priv->irq_mask = |
| 2101 | ~(I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 2102 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
| 2103 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 2104 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT | |
| 2105 | I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT); |
| 2106 | I915_WRITE16(IMR, dev_priv->irq_mask); |
| 2107 | |
| 2108 | I915_WRITE16(IER, |
| 2109 | I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 2110 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
| 2111 | I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT | |
| 2112 | I915_USER_INTERRUPT); |
| 2113 | POSTING_READ16(IER); |
| 2114 | |
| 2115 | return 0; |
| 2116 | } |
| 2117 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 2118 | static irqreturn_t i8xx_irq_handler(int irq, void *arg) |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2119 | { |
| 2120 | struct drm_device *dev = (struct drm_device *) arg; |
| 2121 | 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] | 2122 | u16 iir, new_iir; |
| 2123 | u32 pipe_stats[2]; |
| 2124 | unsigned long irqflags; |
| 2125 | int irq_received; |
| 2126 | int pipe; |
| 2127 | u16 flip_mask = |
| 2128 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 2129 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT; |
| 2130 | |
| 2131 | atomic_inc(&dev_priv->irq_received); |
| 2132 | |
| 2133 | iir = I915_READ16(IIR); |
| 2134 | if (iir == 0) |
| 2135 | return IRQ_NONE; |
| 2136 | |
| 2137 | while (iir & ~flip_mask) { |
| 2138 | /* Can't rely on pipestat interrupt bit in iir as it might |
| 2139 | * have been cleared after the pipestat interrupt was received. |
| 2140 | * It doesn't set the bit in iir again, but it still produces |
| 2141 | * interrupts (for non-MSI). |
| 2142 | */ |
| 2143 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 2144 | if (iir & I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT) |
| 2145 | i915_handle_error(dev, false); |
| 2146 | |
| 2147 | for_each_pipe(pipe) { |
| 2148 | int reg = PIPESTAT(pipe); |
| 2149 | pipe_stats[pipe] = I915_READ(reg); |
| 2150 | |
| 2151 | /* |
| 2152 | * Clear the PIPE*STAT regs before the IIR |
| 2153 | */ |
| 2154 | if (pipe_stats[pipe] & 0x8000ffff) { |
| 2155 | if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS) |
| 2156 | DRM_DEBUG_DRIVER("pipe %c underrun\n", |
| 2157 | pipe_name(pipe)); |
| 2158 | I915_WRITE(reg, pipe_stats[pipe]); |
| 2159 | irq_received = 1; |
| 2160 | } |
| 2161 | } |
| 2162 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 2163 | |
| 2164 | I915_WRITE16(IIR, iir & ~flip_mask); |
| 2165 | new_iir = I915_READ16(IIR); /* Flush posted writes */ |
| 2166 | |
Daniel Vetter | d05c617 | 2012-04-26 23:28:09 +0200 | [diff] [blame] | 2167 | i915_update_dri1_breadcrumb(dev); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2168 | |
| 2169 | if (iir & I915_USER_INTERRUPT) |
| 2170 | notify_ring(dev, &dev_priv->ring[RCS]); |
| 2171 | |
| 2172 | if (pipe_stats[0] & PIPE_VBLANK_INTERRUPT_STATUS && |
| 2173 | drm_handle_vblank(dev, 0)) { |
| 2174 | if (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT) { |
| 2175 | intel_prepare_page_flip(dev, 0); |
| 2176 | intel_finish_page_flip(dev, 0); |
| 2177 | flip_mask &= ~I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT; |
| 2178 | } |
| 2179 | } |
| 2180 | |
| 2181 | if (pipe_stats[1] & PIPE_VBLANK_INTERRUPT_STATUS && |
| 2182 | drm_handle_vblank(dev, 1)) { |
| 2183 | if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT) { |
| 2184 | intel_prepare_page_flip(dev, 1); |
| 2185 | intel_finish_page_flip(dev, 1); |
| 2186 | flip_mask &= ~I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT; |
| 2187 | } |
| 2188 | } |
| 2189 | |
| 2190 | iir = new_iir; |
| 2191 | } |
| 2192 | |
| 2193 | return IRQ_HANDLED; |
| 2194 | } |
| 2195 | |
| 2196 | static void i8xx_irq_uninstall(struct drm_device * dev) |
| 2197 | { |
| 2198 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2199 | int pipe; |
| 2200 | |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2201 | for_each_pipe(pipe) { |
| 2202 | /* Clear enable bits; then clear status bits */ |
| 2203 | I915_WRITE(PIPESTAT(pipe), 0); |
| 2204 | I915_WRITE(PIPESTAT(pipe), I915_READ(PIPESTAT(pipe))); |
| 2205 | } |
| 2206 | I915_WRITE16(IMR, 0xffff); |
| 2207 | I915_WRITE16(IER, 0x0); |
| 2208 | I915_WRITE16(IIR, I915_READ16(IIR)); |
| 2209 | } |
| 2210 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2211 | static void i915_irq_preinstall(struct drm_device * dev) |
| 2212 | { |
| 2213 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2214 | int pipe; |
| 2215 | |
| 2216 | atomic_set(&dev_priv->irq_received, 0); |
| 2217 | |
| 2218 | if (I915_HAS_HOTPLUG(dev)) { |
| 2219 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 2220 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
| 2221 | } |
| 2222 | |
Chris Wilson | 00d98eb | 2012-04-24 22:59:48 +0100 | [diff] [blame] | 2223 | I915_WRITE16(HWSTAM, 0xeffe); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2224 | for_each_pipe(pipe) |
| 2225 | I915_WRITE(PIPESTAT(pipe), 0); |
| 2226 | I915_WRITE(IMR, 0xffffffff); |
| 2227 | I915_WRITE(IER, 0x0); |
| 2228 | POSTING_READ(IER); |
| 2229 | } |
| 2230 | |
| 2231 | static int i915_irq_postinstall(struct drm_device *dev) |
| 2232 | { |
| 2233 | 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] | 2234 | u32 enable_mask; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2235 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2236 | dev_priv->pipestat[0] = 0; |
| 2237 | dev_priv->pipestat[1] = 0; |
| 2238 | |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2239 | I915_WRITE(EMR, ~(I915_ERROR_PAGE_TABLE | I915_ERROR_MEMORY_REFRESH)); |
| 2240 | |
| 2241 | /* Unmask the interrupts that we always want on. */ |
| 2242 | dev_priv->irq_mask = |
| 2243 | ~(I915_ASLE_INTERRUPT | |
| 2244 | I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 2245 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
| 2246 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 2247 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT | |
| 2248 | I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT); |
| 2249 | |
| 2250 | enable_mask = |
| 2251 | I915_ASLE_INTERRUPT | |
| 2252 | I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 2253 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
| 2254 | I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT | |
| 2255 | I915_USER_INTERRUPT; |
| 2256 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2257 | if (I915_HAS_HOTPLUG(dev)) { |
| 2258 | /* Enable in IER... */ |
| 2259 | enable_mask |= I915_DISPLAY_PORT_INTERRUPT; |
| 2260 | /* and unmask in IMR */ |
| 2261 | dev_priv->irq_mask &= ~I915_DISPLAY_PORT_INTERRUPT; |
| 2262 | } |
| 2263 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2264 | I915_WRITE(IMR, dev_priv->irq_mask); |
| 2265 | I915_WRITE(IER, enable_mask); |
| 2266 | POSTING_READ(IER); |
| 2267 | |
| 2268 | if (I915_HAS_HOTPLUG(dev)) { |
| 2269 | u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN); |
| 2270 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2271 | if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS) |
| 2272 | hotplug_en |= HDMIB_HOTPLUG_INT_EN; |
| 2273 | if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS) |
| 2274 | hotplug_en |= HDMIC_HOTPLUG_INT_EN; |
| 2275 | if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS) |
| 2276 | hotplug_en |= HDMID_HOTPLUG_INT_EN; |
Chris Wilson | 084b612 | 2012-05-11 18:01:33 +0100 | [diff] [blame] | 2277 | if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS_I915) |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2278 | hotplug_en |= SDVOC_HOTPLUG_INT_EN; |
Chris Wilson | 084b612 | 2012-05-11 18:01:33 +0100 | [diff] [blame] | 2279 | if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS_I915) |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2280 | hotplug_en |= SDVOB_HOTPLUG_INT_EN; |
| 2281 | if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) { |
| 2282 | hotplug_en |= CRT_HOTPLUG_INT_EN; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2283 | hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50; |
| 2284 | } |
| 2285 | |
| 2286 | /* Ignore TV since it's buggy */ |
| 2287 | |
| 2288 | I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); |
| 2289 | } |
| 2290 | |
| 2291 | intel_opregion_enable_asle(dev); |
| 2292 | |
| 2293 | return 0; |
| 2294 | } |
| 2295 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 2296 | static irqreturn_t i915_irq_handler(int irq, void *arg) |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2297 | { |
| 2298 | struct drm_device *dev = (struct drm_device *) arg; |
| 2299 | 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] | 2300 | u32 iir, new_iir, pipe_stats[I915_MAX_PIPES]; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2301 | unsigned long irqflags; |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2302 | u32 flip_mask = |
| 2303 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 2304 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT; |
| 2305 | u32 flip[2] = { |
| 2306 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT, |
| 2307 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT |
| 2308 | }; |
| 2309 | int pipe, ret = IRQ_NONE; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2310 | |
| 2311 | atomic_inc(&dev_priv->irq_received); |
| 2312 | |
| 2313 | iir = I915_READ(IIR); |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2314 | do { |
| 2315 | bool irq_received = (iir & ~flip_mask) != 0; |
Chris Wilson | 8291ee9 | 2012-04-24 22:59:47 +0100 | [diff] [blame] | 2316 | bool blc_event = false; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2317 | |
| 2318 | /* Can't rely on pipestat interrupt bit in iir as it might |
| 2319 | * have been cleared after the pipestat interrupt was received. |
| 2320 | * It doesn't set the bit in iir again, but it still produces |
| 2321 | * interrupts (for non-MSI). |
| 2322 | */ |
| 2323 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 2324 | if (iir & I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT) |
| 2325 | i915_handle_error(dev, false); |
| 2326 | |
| 2327 | for_each_pipe(pipe) { |
| 2328 | int reg = PIPESTAT(pipe); |
| 2329 | pipe_stats[pipe] = I915_READ(reg); |
| 2330 | |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2331 | /* Clear the PIPE*STAT regs before the IIR */ |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2332 | if (pipe_stats[pipe] & 0x8000ffff) { |
| 2333 | if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS) |
| 2334 | DRM_DEBUG_DRIVER("pipe %c underrun\n", |
| 2335 | pipe_name(pipe)); |
| 2336 | I915_WRITE(reg, pipe_stats[pipe]); |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2337 | irq_received = true; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2338 | } |
| 2339 | } |
| 2340 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 2341 | |
| 2342 | if (!irq_received) |
| 2343 | break; |
| 2344 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2345 | /* Consume port. Then clear IIR or we'll miss events */ |
| 2346 | if ((I915_HAS_HOTPLUG(dev)) && |
| 2347 | (iir & I915_DISPLAY_PORT_INTERRUPT)) { |
| 2348 | u32 hotplug_status = I915_READ(PORT_HOTPLUG_STAT); |
| 2349 | |
| 2350 | DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n", |
| 2351 | hotplug_status); |
| 2352 | if (hotplug_status & dev_priv->hotplug_supported_mask) |
| 2353 | queue_work(dev_priv->wq, |
| 2354 | &dev_priv->hotplug_work); |
| 2355 | |
| 2356 | I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status); |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2357 | POSTING_READ(PORT_HOTPLUG_STAT); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2358 | } |
| 2359 | |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2360 | I915_WRITE(IIR, iir & ~flip_mask); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2361 | new_iir = I915_READ(IIR); /* Flush posted writes */ |
| 2362 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2363 | if (iir & I915_USER_INTERRUPT) |
| 2364 | notify_ring(dev, &dev_priv->ring[RCS]); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2365 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2366 | for_each_pipe(pipe) { |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2367 | int plane = pipe; |
| 2368 | if (IS_MOBILE(dev)) |
| 2369 | plane = !plane; |
Chris Wilson | 8291ee9 | 2012-04-24 22:59:47 +0100 | [diff] [blame] | 2370 | if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS && |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2371 | drm_handle_vblank(dev, pipe)) { |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2372 | if (iir & flip[plane]) { |
| 2373 | intel_prepare_page_flip(dev, plane); |
| 2374 | intel_finish_page_flip(dev, pipe); |
| 2375 | flip_mask &= ~flip[plane]; |
| 2376 | } |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2377 | } |
| 2378 | |
| 2379 | if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS) |
| 2380 | blc_event = true; |
| 2381 | } |
| 2382 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2383 | if (blc_event || (iir & I915_ASLE_INTERRUPT)) |
| 2384 | intel_opregion_asle_intr(dev); |
| 2385 | |
| 2386 | /* With MSI, interrupts are only generated when iir |
| 2387 | * transitions from zero to nonzero. If another bit got |
| 2388 | * set while we were handling the existing iir bits, then |
| 2389 | * we would never get another interrupt. |
| 2390 | * |
| 2391 | * This is fine on non-MSI as well, as if we hit this path |
| 2392 | * we avoid exiting the interrupt handler only to generate |
| 2393 | * another one. |
| 2394 | * |
| 2395 | * Note that for MSI this could cause a stray interrupt report |
| 2396 | * if an interrupt landed in the time between writing IIR and |
| 2397 | * the posting read. This should be rare enough to never |
| 2398 | * trigger the 99% of 100,000 interrupts test for disabling |
| 2399 | * stray interrupts. |
| 2400 | */ |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2401 | ret = IRQ_HANDLED; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2402 | iir = new_iir; |
Chris Wilson | 38bde18 | 2012-04-24 22:59:50 +0100 | [diff] [blame] | 2403 | } while (iir & ~flip_mask); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2404 | |
Daniel Vetter | d05c617 | 2012-04-26 23:28:09 +0200 | [diff] [blame] | 2405 | i915_update_dri1_breadcrumb(dev); |
Chris Wilson | 8291ee9 | 2012-04-24 22:59:47 +0100 | [diff] [blame] | 2406 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2407 | return ret; |
| 2408 | } |
| 2409 | |
| 2410 | static void i915_irq_uninstall(struct drm_device * dev) |
| 2411 | { |
| 2412 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2413 | int pipe; |
| 2414 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2415 | if (I915_HAS_HOTPLUG(dev)) { |
| 2416 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 2417 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
| 2418 | } |
| 2419 | |
Chris Wilson | 00d98eb | 2012-04-24 22:59:48 +0100 | [diff] [blame] | 2420 | I915_WRITE16(HWSTAM, 0xffff); |
Chris Wilson | 55b3975 | 2012-04-24 22:59:49 +0100 | [diff] [blame] | 2421 | for_each_pipe(pipe) { |
| 2422 | /* Clear enable bits; then clear status bits */ |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2423 | I915_WRITE(PIPESTAT(pipe), 0); |
Chris Wilson | 55b3975 | 2012-04-24 22:59:49 +0100 | [diff] [blame] | 2424 | I915_WRITE(PIPESTAT(pipe), I915_READ(PIPESTAT(pipe))); |
| 2425 | } |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2426 | I915_WRITE(IMR, 0xffffffff); |
| 2427 | I915_WRITE(IER, 0x0); |
| 2428 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2429 | I915_WRITE(IIR, I915_READ(IIR)); |
| 2430 | } |
| 2431 | |
| 2432 | static void i965_irq_preinstall(struct drm_device * dev) |
| 2433 | { |
| 2434 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2435 | int pipe; |
| 2436 | |
| 2437 | atomic_set(&dev_priv->irq_received, 0); |
| 2438 | |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 2439 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 2440 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2441 | |
| 2442 | I915_WRITE(HWSTAM, 0xeffe); |
| 2443 | for_each_pipe(pipe) |
| 2444 | I915_WRITE(PIPESTAT(pipe), 0); |
| 2445 | I915_WRITE(IMR, 0xffffffff); |
| 2446 | I915_WRITE(IER, 0x0); |
| 2447 | POSTING_READ(IER); |
| 2448 | } |
| 2449 | |
| 2450 | static int i965_irq_postinstall(struct drm_device *dev) |
| 2451 | { |
| 2452 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 2453 | u32 hotplug_en; |
Chris Wilson | bbba0a9 | 2012-04-24 22:59:51 +0100 | [diff] [blame] | 2454 | u32 enable_mask; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2455 | u32 error_mask; |
| 2456 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2457 | /* Unmask the interrupts that we always want on. */ |
Chris Wilson | bbba0a9 | 2012-04-24 22:59:51 +0100 | [diff] [blame] | 2458 | dev_priv->irq_mask = ~(I915_ASLE_INTERRUPT | |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 2459 | I915_DISPLAY_PORT_INTERRUPT | |
Chris Wilson | bbba0a9 | 2012-04-24 22:59:51 +0100 | [diff] [blame] | 2460 | I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | |
| 2461 | I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | |
| 2462 | I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT | |
| 2463 | I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT | |
| 2464 | I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT); |
| 2465 | |
| 2466 | enable_mask = ~dev_priv->irq_mask; |
| 2467 | enable_mask |= I915_USER_INTERRUPT; |
| 2468 | |
| 2469 | if (IS_G4X(dev)) |
| 2470 | enable_mask |= I915_BSD_USER_INTERRUPT; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2471 | |
| 2472 | dev_priv->pipestat[0] = 0; |
| 2473 | dev_priv->pipestat[1] = 0; |
| 2474 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2475 | /* |
| 2476 | * Enable some error detection, note the instruction error mask |
| 2477 | * bit is reserved, so we leave it masked. |
| 2478 | */ |
| 2479 | if (IS_G4X(dev)) { |
| 2480 | error_mask = ~(GM45_ERROR_PAGE_TABLE | |
| 2481 | GM45_ERROR_MEM_PRIV | |
| 2482 | GM45_ERROR_CP_PRIV | |
| 2483 | I915_ERROR_MEMORY_REFRESH); |
| 2484 | } else { |
| 2485 | error_mask = ~(I915_ERROR_PAGE_TABLE | |
| 2486 | I915_ERROR_MEMORY_REFRESH); |
| 2487 | } |
| 2488 | I915_WRITE(EMR, error_mask); |
| 2489 | |
| 2490 | I915_WRITE(IMR, dev_priv->irq_mask); |
| 2491 | I915_WRITE(IER, enable_mask); |
| 2492 | POSTING_READ(IER); |
| 2493 | |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 2494 | /* Note HDMI and DP share hotplug bits */ |
| 2495 | hotplug_en = 0; |
| 2496 | if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS) |
| 2497 | hotplug_en |= HDMIB_HOTPLUG_INT_EN; |
| 2498 | if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS) |
| 2499 | hotplug_en |= HDMIC_HOTPLUG_INT_EN; |
| 2500 | if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS) |
| 2501 | hotplug_en |= HDMID_HOTPLUG_INT_EN; |
Chris Wilson | 084b612 | 2012-05-11 18:01:33 +0100 | [diff] [blame] | 2502 | if (IS_G4X(dev)) { |
| 2503 | if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS_G4X) |
| 2504 | hotplug_en |= SDVOC_HOTPLUG_INT_EN; |
| 2505 | if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS_G4X) |
| 2506 | hotplug_en |= SDVOB_HOTPLUG_INT_EN; |
| 2507 | } else { |
| 2508 | if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS_I965) |
| 2509 | hotplug_en |= SDVOC_HOTPLUG_INT_EN; |
| 2510 | if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS_I965) |
| 2511 | hotplug_en |= SDVOB_HOTPLUG_INT_EN; |
| 2512 | } |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 2513 | if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) { |
| 2514 | hotplug_en |= CRT_HOTPLUG_INT_EN; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2515 | |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 2516 | /* Programming the CRT detection parameters tends |
| 2517 | to generate a spurious hotplug event about three |
| 2518 | seconds later. So just do it once. |
| 2519 | */ |
| 2520 | if (IS_G4X(dev)) |
| 2521 | hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64; |
| 2522 | hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2523 | } |
| 2524 | |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 2525 | /* Ignore TV since it's buggy */ |
| 2526 | |
| 2527 | I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); |
| 2528 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2529 | intel_opregion_enable_asle(dev); |
| 2530 | |
| 2531 | return 0; |
| 2532 | } |
| 2533 | |
Daniel Vetter | ff1f525 | 2012-10-02 15:10:55 +0200 | [diff] [blame] | 2534 | static irqreturn_t i965_irq_handler(int irq, void *arg) |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2535 | { |
| 2536 | struct drm_device *dev = (struct drm_device *) arg; |
| 2537 | 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] | 2538 | u32 iir, new_iir; |
| 2539 | u32 pipe_stats[I915_MAX_PIPES]; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2540 | unsigned long irqflags; |
| 2541 | int irq_received; |
| 2542 | int ret = IRQ_NONE, pipe; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2543 | |
| 2544 | atomic_inc(&dev_priv->irq_received); |
| 2545 | |
| 2546 | iir = I915_READ(IIR); |
| 2547 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2548 | for (;;) { |
Chris Wilson | 2c8ba29 | 2012-04-24 22:59:46 +0100 | [diff] [blame] | 2549 | bool blc_event = false; |
| 2550 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2551 | irq_received = iir != 0; |
| 2552 | |
| 2553 | /* Can't rely on pipestat interrupt bit in iir as it might |
| 2554 | * have been cleared after the pipestat interrupt was received. |
| 2555 | * It doesn't set the bit in iir again, but it still produces |
| 2556 | * interrupts (for non-MSI). |
| 2557 | */ |
| 2558 | spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
| 2559 | if (iir & I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT) |
| 2560 | i915_handle_error(dev, false); |
| 2561 | |
| 2562 | for_each_pipe(pipe) { |
| 2563 | int reg = PIPESTAT(pipe); |
| 2564 | pipe_stats[pipe] = I915_READ(reg); |
| 2565 | |
| 2566 | /* |
| 2567 | * Clear the PIPE*STAT regs before the IIR |
| 2568 | */ |
| 2569 | if (pipe_stats[pipe] & 0x8000ffff) { |
| 2570 | if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS) |
| 2571 | DRM_DEBUG_DRIVER("pipe %c underrun\n", |
| 2572 | pipe_name(pipe)); |
| 2573 | I915_WRITE(reg, pipe_stats[pipe]); |
| 2574 | irq_received = 1; |
| 2575 | } |
| 2576 | } |
| 2577 | spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); |
| 2578 | |
| 2579 | if (!irq_received) |
| 2580 | break; |
| 2581 | |
| 2582 | ret = IRQ_HANDLED; |
| 2583 | |
| 2584 | /* Consume port. Then clear IIR or we'll miss events */ |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 2585 | if (iir & I915_DISPLAY_PORT_INTERRUPT) { |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2586 | u32 hotplug_status = I915_READ(PORT_HOTPLUG_STAT); |
| 2587 | |
| 2588 | DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n", |
| 2589 | hotplug_status); |
| 2590 | if (hotplug_status & dev_priv->hotplug_supported_mask) |
| 2591 | queue_work(dev_priv->wq, |
| 2592 | &dev_priv->hotplug_work); |
| 2593 | |
| 2594 | I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status); |
| 2595 | I915_READ(PORT_HOTPLUG_STAT); |
| 2596 | } |
| 2597 | |
| 2598 | I915_WRITE(IIR, iir); |
| 2599 | new_iir = I915_READ(IIR); /* Flush posted writes */ |
| 2600 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2601 | if (iir & I915_USER_INTERRUPT) |
| 2602 | notify_ring(dev, &dev_priv->ring[RCS]); |
| 2603 | if (iir & I915_BSD_USER_INTERRUPT) |
| 2604 | notify_ring(dev, &dev_priv->ring[VCS]); |
| 2605 | |
Chris Wilson | 4f7d1e7 | 2012-04-24 22:59:45 +0100 | [diff] [blame] | 2606 | if (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT) |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2607 | intel_prepare_page_flip(dev, 0); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2608 | |
Chris Wilson | 4f7d1e7 | 2012-04-24 22:59:45 +0100 | [diff] [blame] | 2609 | if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT) |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2610 | intel_prepare_page_flip(dev, 1); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2611 | |
| 2612 | for_each_pipe(pipe) { |
Chris Wilson | 2c8ba29 | 2012-04-24 22:59:46 +0100 | [diff] [blame] | 2613 | if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS && |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2614 | drm_handle_vblank(dev, pipe)) { |
Chris Wilson | 4f7d1e7 | 2012-04-24 22:59:45 +0100 | [diff] [blame] | 2615 | i915_pageflip_stall_check(dev, pipe); |
| 2616 | intel_finish_page_flip(dev, pipe); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2617 | } |
| 2618 | |
| 2619 | if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS) |
| 2620 | blc_event = true; |
| 2621 | } |
| 2622 | |
| 2623 | |
| 2624 | if (blc_event || (iir & I915_ASLE_INTERRUPT)) |
| 2625 | intel_opregion_asle_intr(dev); |
| 2626 | |
| 2627 | /* With MSI, interrupts are only generated when iir |
| 2628 | * transitions from zero to nonzero. If another bit got |
| 2629 | * set while we were handling the existing iir bits, then |
| 2630 | * we would never get another interrupt. |
| 2631 | * |
| 2632 | * This is fine on non-MSI as well, as if we hit this path |
| 2633 | * we avoid exiting the interrupt handler only to generate |
| 2634 | * another one. |
| 2635 | * |
| 2636 | * Note that for MSI this could cause a stray interrupt report |
| 2637 | * if an interrupt landed in the time between writing IIR and |
| 2638 | * the posting read. This should be rare enough to never |
| 2639 | * trigger the 99% of 100,000 interrupts test for disabling |
| 2640 | * stray interrupts. |
| 2641 | */ |
| 2642 | iir = new_iir; |
| 2643 | } |
| 2644 | |
Daniel Vetter | d05c617 | 2012-04-26 23:28:09 +0200 | [diff] [blame] | 2645 | i915_update_dri1_breadcrumb(dev); |
Chris Wilson | 2c8ba29 | 2012-04-24 22:59:46 +0100 | [diff] [blame] | 2646 | |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2647 | return ret; |
| 2648 | } |
| 2649 | |
| 2650 | static void i965_irq_uninstall(struct drm_device * dev) |
| 2651 | { |
| 2652 | drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; |
| 2653 | int pipe; |
| 2654 | |
| 2655 | if (!dev_priv) |
| 2656 | return; |
| 2657 | |
Chris Wilson | adca473 | 2012-05-11 18:01:31 +0100 | [diff] [blame] | 2658 | I915_WRITE(PORT_HOTPLUG_EN, 0); |
| 2659 | I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2660 | |
| 2661 | I915_WRITE(HWSTAM, 0xffffffff); |
| 2662 | for_each_pipe(pipe) |
| 2663 | I915_WRITE(PIPESTAT(pipe), 0); |
| 2664 | I915_WRITE(IMR, 0xffffffff); |
| 2665 | I915_WRITE(IER, 0x0); |
| 2666 | |
| 2667 | for_each_pipe(pipe) |
| 2668 | I915_WRITE(PIPESTAT(pipe), |
| 2669 | I915_READ(PIPESTAT(pipe)) & 0x8000ffff); |
| 2670 | I915_WRITE(IIR, I915_READ(IIR)); |
| 2671 | } |
| 2672 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2673 | void intel_irq_init(struct drm_device *dev) |
| 2674 | { |
Chris Wilson | 8b2e326 | 2012-04-24 22:59:41 +0100 | [diff] [blame] | 2675 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 2676 | |
| 2677 | INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func); |
| 2678 | INIT_WORK(&dev_priv->error_work, i915_error_work_func); |
Daniel Vetter | c6a828d | 2012-08-08 23:35:35 +0200 | [diff] [blame] | 2679 | INIT_WORK(&dev_priv->rps.work, gen6_pm_rps_work); |
Daniel Vetter | 98fd81c | 2012-05-31 14:57:42 +0200 | [diff] [blame] | 2680 | INIT_WORK(&dev_priv->parity_error_work, ivybridge_parity_work); |
Chris Wilson | 8b2e326 | 2012-04-24 22:59:41 +0100 | [diff] [blame] | 2681 | |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2682 | dev->driver->get_vblank_counter = i915_get_vblank_counter; |
| 2683 | dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */ |
Eugeni Dodonov | 7d4e146 | 2012-05-09 15:37:09 -0300 | [diff] [blame] | 2684 | if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) { |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2685 | dev->max_vblank_count = 0xffffffff; /* full 32 bit counter */ |
| 2686 | dev->driver->get_vblank_counter = gm45_get_vblank_counter; |
| 2687 | } |
| 2688 | |
Keith Packard | c3613de | 2011-08-12 17:05:54 -0700 | [diff] [blame] | 2689 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
| 2690 | dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp; |
| 2691 | else |
| 2692 | dev->driver->get_vblank_timestamp = NULL; |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2693 | dev->driver->get_scanout_position = i915_get_crtc_scanoutpos; |
| 2694 | |
Jesse Barnes | 7e231dbe | 2012-03-28 13:39:38 -0700 | [diff] [blame] | 2695 | if (IS_VALLEYVIEW(dev)) { |
| 2696 | dev->driver->irq_handler = valleyview_irq_handler; |
| 2697 | dev->driver->irq_preinstall = valleyview_irq_preinstall; |
| 2698 | dev->driver->irq_postinstall = valleyview_irq_postinstall; |
| 2699 | dev->driver->irq_uninstall = valleyview_irq_uninstall; |
| 2700 | dev->driver->enable_vblank = valleyview_enable_vblank; |
| 2701 | dev->driver->disable_vblank = valleyview_disable_vblank; |
| 2702 | } else if (IS_IVYBRIDGE(dev)) { |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2703 | /* Share pre & uninstall handlers with ILK/SNB */ |
| 2704 | dev->driver->irq_handler = ivybridge_irq_handler; |
| 2705 | dev->driver->irq_preinstall = ironlake_irq_preinstall; |
| 2706 | dev->driver->irq_postinstall = ivybridge_irq_postinstall; |
| 2707 | dev->driver->irq_uninstall = ironlake_irq_uninstall; |
| 2708 | dev->driver->enable_vblank = ivybridge_enable_vblank; |
| 2709 | dev->driver->disable_vblank = ivybridge_disable_vblank; |
Eugeni Dodonov | 7d4e146 | 2012-05-09 15:37:09 -0300 | [diff] [blame] | 2710 | } else if (IS_HASWELL(dev)) { |
| 2711 | /* Share interrupts handling with IVB */ |
| 2712 | dev->driver->irq_handler = ivybridge_irq_handler; |
| 2713 | dev->driver->irq_preinstall = ironlake_irq_preinstall; |
| 2714 | dev->driver->irq_postinstall = ivybridge_irq_postinstall; |
| 2715 | dev->driver->irq_uninstall = ironlake_irq_uninstall; |
| 2716 | dev->driver->enable_vblank = ivybridge_enable_vblank; |
| 2717 | dev->driver->disable_vblank = ivybridge_disable_vblank; |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2718 | } else if (HAS_PCH_SPLIT(dev)) { |
| 2719 | dev->driver->irq_handler = ironlake_irq_handler; |
| 2720 | dev->driver->irq_preinstall = ironlake_irq_preinstall; |
| 2721 | dev->driver->irq_postinstall = ironlake_irq_postinstall; |
| 2722 | dev->driver->irq_uninstall = ironlake_irq_uninstall; |
| 2723 | dev->driver->enable_vblank = ironlake_enable_vblank; |
| 2724 | dev->driver->disable_vblank = ironlake_disable_vblank; |
| 2725 | } else { |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2726 | if (INTEL_INFO(dev)->gen == 2) { |
| 2727 | dev->driver->irq_preinstall = i8xx_irq_preinstall; |
| 2728 | dev->driver->irq_postinstall = i8xx_irq_postinstall; |
| 2729 | dev->driver->irq_handler = i8xx_irq_handler; |
| 2730 | dev->driver->irq_uninstall = i8xx_irq_uninstall; |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2731 | } else if (INTEL_INFO(dev)->gen == 3) { |
| 2732 | dev->driver->irq_preinstall = i915_irq_preinstall; |
| 2733 | dev->driver->irq_postinstall = i915_irq_postinstall; |
| 2734 | dev->driver->irq_uninstall = i915_irq_uninstall; |
| 2735 | dev->driver->irq_handler = i915_irq_handler; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2736 | } else { |
Chris Wilson | a266c7d | 2012-04-24 22:59:44 +0100 | [diff] [blame] | 2737 | dev->driver->irq_preinstall = i965_irq_preinstall; |
| 2738 | dev->driver->irq_postinstall = i965_irq_postinstall; |
| 2739 | dev->driver->irq_uninstall = i965_irq_uninstall; |
| 2740 | dev->driver->irq_handler = i965_irq_handler; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2741 | } |
Jesse Barnes | f71d4af | 2011-06-28 13:00:41 -0700 | [diff] [blame] | 2742 | dev->driver->enable_vblank = i915_enable_vblank; |
| 2743 | dev->driver->disable_vblank = i915_disable_vblank; |
| 2744 | } |
| 2745 | } |