Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2008 Intel Corporation |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 21 | * IN THE SOFTWARE. |
| 22 | * |
| 23 | * Authors: |
| 24 | * Eric Anholt <eric@anholt.net> |
| 25 | * Keith Packard <keithp@keithp.com> |
| 26 | * Mika Kuoppala <mika.kuoppala@intel.com> |
| 27 | * |
| 28 | */ |
| 29 | |
| 30 | #include <generated/utsrelease.h> |
| 31 | #include "i915_drv.h" |
| 32 | |
| 33 | static const char *yesno(int v) |
| 34 | { |
| 35 | return v ? "yes" : "no"; |
| 36 | } |
| 37 | |
| 38 | static const char *ring_str(int ring) |
| 39 | { |
| 40 | switch (ring) { |
| 41 | case RCS: return "render"; |
| 42 | case VCS: return "bsd"; |
| 43 | case BCS: return "blt"; |
| 44 | case VECS: return "vebox"; |
Zhao Yakui | 845f74a | 2014-04-17 10:37:37 +0800 | [diff] [blame] | 45 | case VCS2: return "bsd2"; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 46 | default: return ""; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | static const char *pin_flag(int pinned) |
| 51 | { |
| 52 | if (pinned > 0) |
| 53 | return " P"; |
| 54 | else if (pinned < 0) |
| 55 | return " p"; |
| 56 | else |
| 57 | return ""; |
| 58 | } |
| 59 | |
| 60 | static const char *tiling_flag(int tiling) |
| 61 | { |
| 62 | switch (tiling) { |
| 63 | default: |
| 64 | case I915_TILING_NONE: return ""; |
| 65 | case I915_TILING_X: return " X"; |
| 66 | case I915_TILING_Y: return " Y"; |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | static const char *dirty_flag(int dirty) |
| 71 | { |
| 72 | return dirty ? " dirty" : ""; |
| 73 | } |
| 74 | |
| 75 | static const char *purgeable_flag(int purgeable) |
| 76 | { |
| 77 | return purgeable ? " purgeable" : ""; |
| 78 | } |
| 79 | |
| 80 | static bool __i915_error_ok(struct drm_i915_error_state_buf *e) |
| 81 | { |
| 82 | |
| 83 | if (!e->err && WARN(e->bytes > (e->size - 1), "overflow")) { |
| 84 | e->err = -ENOSPC; |
| 85 | return false; |
| 86 | } |
| 87 | |
| 88 | if (e->bytes == e->size - 1 || e->err) |
| 89 | return false; |
| 90 | |
| 91 | return true; |
| 92 | } |
| 93 | |
| 94 | static bool __i915_error_seek(struct drm_i915_error_state_buf *e, |
| 95 | unsigned len) |
| 96 | { |
| 97 | if (e->pos + len <= e->start) { |
| 98 | e->pos += len; |
| 99 | return false; |
| 100 | } |
| 101 | |
| 102 | /* First vsnprintf needs to fit in its entirety for memmove */ |
| 103 | if (len >= e->size) { |
| 104 | e->err = -EIO; |
| 105 | return false; |
| 106 | } |
| 107 | |
| 108 | return true; |
| 109 | } |
| 110 | |
| 111 | static void __i915_error_advance(struct drm_i915_error_state_buf *e, |
| 112 | unsigned len) |
| 113 | { |
| 114 | /* If this is first printf in this window, adjust it so that |
| 115 | * start position matches start of the buffer |
| 116 | */ |
| 117 | |
| 118 | if (e->pos < e->start) { |
| 119 | const size_t off = e->start - e->pos; |
| 120 | |
| 121 | /* Should not happen but be paranoid */ |
| 122 | if (off > len || e->bytes) { |
| 123 | e->err = -EIO; |
| 124 | return; |
| 125 | } |
| 126 | |
| 127 | memmove(e->buf, e->buf + off, len - off); |
| 128 | e->bytes = len - off; |
| 129 | e->pos = e->start; |
| 130 | return; |
| 131 | } |
| 132 | |
| 133 | e->bytes += len; |
| 134 | e->pos += len; |
| 135 | } |
| 136 | |
| 137 | static void i915_error_vprintf(struct drm_i915_error_state_buf *e, |
| 138 | const char *f, va_list args) |
| 139 | { |
| 140 | unsigned len; |
| 141 | |
| 142 | if (!__i915_error_ok(e)) |
| 143 | return; |
| 144 | |
| 145 | /* Seek the first printf which is hits start position */ |
| 146 | if (e->pos < e->start) { |
Chris Wilson | e29bb4e | 2013-09-20 10:20:59 +0100 | [diff] [blame] | 147 | va_list tmp; |
| 148 | |
| 149 | va_copy(tmp, args); |
Mika Kuoppala | 1d2cb9a | 2014-02-07 17:40:50 +0200 | [diff] [blame] | 150 | len = vsnprintf(NULL, 0, f, tmp); |
| 151 | va_end(tmp); |
| 152 | |
| 153 | if (!__i915_error_seek(e, len)) |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 154 | return; |
| 155 | } |
| 156 | |
| 157 | len = vsnprintf(e->buf + e->bytes, e->size - e->bytes, f, args); |
| 158 | if (len >= e->size - e->bytes) |
| 159 | len = e->size - e->bytes - 1; |
| 160 | |
| 161 | __i915_error_advance(e, len); |
| 162 | } |
| 163 | |
| 164 | static void i915_error_puts(struct drm_i915_error_state_buf *e, |
| 165 | const char *str) |
| 166 | { |
| 167 | unsigned len; |
| 168 | |
| 169 | if (!__i915_error_ok(e)) |
| 170 | return; |
| 171 | |
| 172 | len = strlen(str); |
| 173 | |
| 174 | /* Seek the first printf which is hits start position */ |
| 175 | if (e->pos < e->start) { |
| 176 | if (!__i915_error_seek(e, len)) |
| 177 | return; |
| 178 | } |
| 179 | |
| 180 | if (len >= e->size - e->bytes) |
| 181 | len = e->size - e->bytes - 1; |
| 182 | memcpy(e->buf + e->bytes, str, len); |
| 183 | |
| 184 | __i915_error_advance(e, len); |
| 185 | } |
| 186 | |
| 187 | #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__) |
| 188 | #define err_puts(e, s) i915_error_puts(e, s) |
| 189 | |
| 190 | static void print_error_buffers(struct drm_i915_error_state_buf *m, |
| 191 | const char *name, |
| 192 | struct drm_i915_error_buffer *err, |
| 193 | int count) |
| 194 | { |
| 195 | err_printf(m, "%s [%d]:\n", name, count); |
| 196 | |
| 197 | while (count--) { |
| 198 | err_printf(m, " %08x %8u %02x %02x %x %x", |
| 199 | err->gtt_offset, |
| 200 | err->size, |
| 201 | err->read_domains, |
| 202 | err->write_domain, |
| 203 | err->rseqno, err->wseqno); |
| 204 | err_puts(m, pin_flag(err->pinned)); |
| 205 | err_puts(m, tiling_flag(err->tiling)); |
| 206 | err_puts(m, dirty_flag(err->dirty)); |
| 207 | err_puts(m, purgeable_flag(err->purgeable)); |
Chris Wilson | 5cc9ed4 | 2014-05-16 14:22:37 +0100 | [diff] [blame] | 208 | err_puts(m, err->userptr ? " userptr" : ""); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 209 | err_puts(m, err->ring != -1 ? " " : ""); |
| 210 | err_puts(m, ring_str(err->ring)); |
| 211 | err_puts(m, i915_cache_level_str(err->cache_level)); |
| 212 | |
| 213 | if (err->name) |
| 214 | err_printf(m, " (name: %d)", err->name); |
| 215 | if (err->fence_reg != I915_FENCE_REG_NONE) |
| 216 | err_printf(m, " (fence: %d)", err->fence_reg); |
| 217 | |
| 218 | err_puts(m, "\n"); |
| 219 | err++; |
| 220 | } |
| 221 | } |
| 222 | |
Mika Kuoppala | da66146 | 2013-09-06 16:03:28 +0300 | [diff] [blame] | 223 | static const char *hangcheck_action_to_str(enum intel_ring_hangcheck_action a) |
| 224 | { |
| 225 | switch (a) { |
| 226 | case HANGCHECK_IDLE: |
| 227 | return "idle"; |
| 228 | case HANGCHECK_WAIT: |
| 229 | return "wait"; |
| 230 | case HANGCHECK_ACTIVE: |
| 231 | return "active"; |
| 232 | case HANGCHECK_KICK: |
| 233 | return "kick"; |
| 234 | case HANGCHECK_HUNG: |
| 235 | return "hung"; |
| 236 | } |
| 237 | |
| 238 | return "unknown"; |
| 239 | } |
| 240 | |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 241 | static void i915_ring_error_state(struct drm_i915_error_state_buf *m, |
| 242 | struct drm_device *dev, |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 243 | struct drm_i915_error_ring *ring) |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 244 | { |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 245 | if (!ring->valid) |
Chris Wilson | 372fbb8 | 2014-01-27 13:52:34 +0000 | [diff] [blame] | 246 | return; |
| 247 | |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 248 | err_printf(m, " HEAD: 0x%08x\n", ring->head); |
| 249 | err_printf(m, " TAIL: 0x%08x\n", ring->tail); |
| 250 | err_printf(m, " CTL: 0x%08x\n", ring->ctl); |
| 251 | err_printf(m, " HWS: 0x%08x\n", ring->hws); |
Chris Wilson | e3243d1 | 2014-03-21 12:05:47 +0000 | [diff] [blame] | 252 | err_printf(m, " ACTHD: 0x%08x %08x\n", (u32)(ring->acthd>>32), (u32)ring->acthd); |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 253 | err_printf(m, " IPEIR: 0x%08x\n", ring->ipeir); |
| 254 | err_printf(m, " IPEHR: 0x%08x\n", ring->ipehr); |
| 255 | err_printf(m, " INSTDONE: 0x%08x\n", ring->instdone); |
Ville Syrjälä | 3dda20a | 2013-12-10 21:44:43 +0200 | [diff] [blame] | 256 | if (INTEL_INFO(dev)->gen >= 4) { |
Chris Wilson | e3243d1 | 2014-03-21 12:05:47 +0000 | [diff] [blame] | 257 | err_printf(m, " BBADDR: 0x%08x %08x\n", (u32)(ring->bbaddr>>32), (u32)ring->bbaddr); |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 258 | err_printf(m, " BB_STATE: 0x%08x\n", ring->bbstate); |
| 259 | err_printf(m, " INSTPS: 0x%08x\n", ring->instps); |
Ville Syrjälä | 3dda20a | 2013-12-10 21:44:43 +0200 | [diff] [blame] | 260 | } |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 261 | err_printf(m, " INSTPM: 0x%08x\n", ring->instpm); |
Ben Widawsky | 13ffadd | 2014-04-01 16:31:07 -0700 | [diff] [blame] | 262 | err_printf(m, " FADDR: 0x%08x %08x\n", upper_32_bits(ring->faddr), |
| 263 | lower_32_bits(ring->faddr)); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 264 | if (INTEL_INFO(dev)->gen >= 6) { |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 265 | err_printf(m, " RC PSMI: 0x%08x\n", ring->rc_psmi); |
| 266 | err_printf(m, " FAULT_REG: 0x%08x\n", ring->fault_reg); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 267 | err_printf(m, " SYNC_0: 0x%08x [last synced 0x%08x]\n", |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 268 | ring->semaphore_mboxes[0], |
| 269 | ring->semaphore_seqno[0]); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 270 | err_printf(m, " SYNC_1: 0x%08x [last synced 0x%08x]\n", |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 271 | ring->semaphore_mboxes[1], |
| 272 | ring->semaphore_seqno[1]); |
Ben Widawsky | 4e5aabf | 2013-08-12 16:53:04 -0700 | [diff] [blame] | 273 | if (HAS_VEBOX(dev)) { |
| 274 | err_printf(m, " SYNC_2: 0x%08x [last synced 0x%08x]\n", |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 275 | ring->semaphore_mboxes[2], |
| 276 | ring->semaphore_seqno[2]); |
Ben Widawsky | 4e5aabf | 2013-08-12 16:53:04 -0700 | [diff] [blame] | 277 | } |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 278 | } |
Ben Widawsky | 6c7a01e | 2014-01-30 00:19:40 -0800 | [diff] [blame] | 279 | if (USES_PPGTT(dev)) { |
| 280 | err_printf(m, " GFX_MODE: 0x%08x\n", ring->vm_info.gfx_mode); |
| 281 | |
| 282 | if (INTEL_INFO(dev)->gen >= 8) { |
| 283 | int i; |
| 284 | for (i = 0; i < 4; i++) |
| 285 | err_printf(m, " PDP%d: 0x%016llx\n", |
| 286 | i, ring->vm_info.pdp[i]); |
| 287 | } else { |
| 288 | err_printf(m, " PP_DIR_BASE: 0x%08x\n", |
| 289 | ring->vm_info.pp_dir_base); |
| 290 | } |
| 291 | } |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 292 | err_printf(m, " seqno: 0x%08x\n", ring->seqno); |
| 293 | err_printf(m, " waiting: %s\n", yesno(ring->waiting)); |
| 294 | err_printf(m, " ring->head: 0x%08x\n", ring->cpu_ring_head); |
| 295 | err_printf(m, " ring->tail: 0x%08x\n", ring->cpu_ring_tail); |
Mika Kuoppala | da66146 | 2013-09-06 16:03:28 +0300 | [diff] [blame] | 296 | err_printf(m, " hangcheck: %s [%d]\n", |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 297 | hangcheck_action_to_str(ring->hangcheck_action), |
| 298 | ring->hangcheck_score); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 299 | } |
| 300 | |
| 301 | void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...) |
| 302 | { |
| 303 | va_list args; |
| 304 | |
| 305 | va_start(args, f); |
| 306 | i915_error_vprintf(e, f, args); |
| 307 | va_end(args); |
| 308 | } |
| 309 | |
Chris Wilson | ab0e7ff | 2014-02-25 17:11:24 +0200 | [diff] [blame] | 310 | static void print_error_obj(struct drm_i915_error_state_buf *m, |
| 311 | struct drm_i915_error_object *obj) |
| 312 | { |
| 313 | int page, offset, elt; |
| 314 | |
| 315 | for (page = offset = 0; page < obj->page_count; page++) { |
| 316 | for (elt = 0; elt < PAGE_SIZE/4; elt++) { |
| 317 | err_printf(m, "%08x : %08x\n", offset, |
| 318 | obj->pages[page][elt]); |
| 319 | offset += 4; |
| 320 | } |
| 321 | } |
| 322 | } |
| 323 | |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 324 | int i915_error_state_to_str(struct drm_i915_error_state_buf *m, |
| 325 | const struct i915_error_state_file_priv *error_priv) |
| 326 | { |
| 327 | struct drm_device *dev = error_priv->dev; |
Jani Nikula | 50227e1 | 2014-03-31 14:27:21 +0300 | [diff] [blame] | 328 | struct drm_i915_private *dev_priv = dev->dev_private; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 329 | struct drm_i915_error_state *error = error_priv->error; |
Chris Wilson | ab0e7ff | 2014-02-25 17:11:24 +0200 | [diff] [blame] | 330 | int i, j, offset, elt; |
| 331 | int max_hangcheck_score; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 332 | |
| 333 | if (!error) { |
| 334 | err_printf(m, "no error state collected\n"); |
| 335 | goto out; |
| 336 | } |
| 337 | |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 338 | err_printf(m, "%s\n", error->error_msg); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 339 | err_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec, |
| 340 | error->time.tv_usec); |
| 341 | err_printf(m, "Kernel: " UTS_RELEASE "\n"); |
Chris Wilson | ab0e7ff | 2014-02-25 17:11:24 +0200 | [diff] [blame] | 342 | max_hangcheck_score = 0; |
| 343 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { |
| 344 | if (error->ring[i].hangcheck_score > max_hangcheck_score) |
| 345 | max_hangcheck_score = error->ring[i].hangcheck_score; |
| 346 | } |
| 347 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { |
| 348 | if (error->ring[i].hangcheck_score == max_hangcheck_score && |
| 349 | error->ring[i].pid != -1) { |
| 350 | err_printf(m, "Active process (on ring %s): %s [%d]\n", |
| 351 | ring_str(i), |
| 352 | error->ring[i].comm, |
| 353 | error->ring[i].pid); |
| 354 | } |
| 355 | } |
Mika Kuoppala | 48b031e | 2014-02-25 17:11:27 +0200 | [diff] [blame] | 356 | err_printf(m, "Reset count: %u\n", error->reset_count); |
Mika Kuoppala | 62d5d69 | 2014-02-25 17:11:28 +0200 | [diff] [blame] | 357 | err_printf(m, "Suspend count: %u\n", error->suspend_count); |
Ville Syrjälä | ffbab09b | 2013-10-04 14:53:40 +0300 | [diff] [blame] | 358 | err_printf(m, "PCI ID: 0x%04x\n", dev->pdev->device); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 359 | err_printf(m, "EIR: 0x%08x\n", error->eir); |
| 360 | err_printf(m, "IER: 0x%08x\n", error->ier); |
| 361 | err_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er); |
| 362 | err_printf(m, "FORCEWAKE: 0x%08x\n", error->forcewake); |
| 363 | err_printf(m, "DERRMR: 0x%08x\n", error->derrmr); |
| 364 | err_printf(m, "CCID: 0x%08x\n", error->ccid); |
Chris Wilson | 094f9a5 | 2013-09-25 17:34:55 +0100 | [diff] [blame] | 365 | err_printf(m, "Missed interrupts: 0x%08lx\n", dev_priv->gpu_error.missed_irq_rings); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 366 | |
| 367 | for (i = 0; i < dev_priv->num_fence_regs; i++) |
| 368 | err_printf(m, " fence[%d] = %08llx\n", i, error->fence[i]); |
| 369 | |
| 370 | for (i = 0; i < ARRAY_SIZE(error->extra_instdone); i++) |
| 371 | err_printf(m, " INSTDONE_%d: 0x%08x\n", i, |
| 372 | error->extra_instdone[i]); |
| 373 | |
| 374 | if (INTEL_INFO(dev)->gen >= 6) { |
| 375 | err_printf(m, "ERROR: 0x%08x\n", error->error); |
| 376 | err_printf(m, "DONE_REG: 0x%08x\n", error->done_reg); |
| 377 | } |
| 378 | |
| 379 | if (INTEL_INFO(dev)->gen == 7) |
| 380 | err_printf(m, "ERR_INT: 0x%08x\n", error->err_int); |
| 381 | |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 382 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { |
| 383 | err_printf(m, "%s command stream:\n", ring_str(i)); |
| 384 | i915_ring_error_state(m, dev, &error->ring[i]); |
| 385 | } |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 386 | |
| 387 | if (error->active_bo) |
| 388 | print_error_buffers(m, "Active", |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 389 | error->active_bo[0], |
| 390 | error->active_bo_count[0]); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 391 | |
| 392 | if (error->pinned_bo) |
| 393 | print_error_buffers(m, "Pinned", |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 394 | error->pinned_bo[0], |
| 395 | error->pinned_bo_count[0]); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 396 | |
| 397 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { |
| 398 | struct drm_i915_error_object *obj; |
| 399 | |
Chris Wilson | ab0e7ff | 2014-02-25 17:11:24 +0200 | [diff] [blame] | 400 | obj = error->ring[i].batchbuffer; |
| 401 | if (obj) { |
| 402 | err_puts(m, dev_priv->ring[i].name); |
| 403 | if (error->ring[i].pid != -1) |
| 404 | err_printf(m, " (submitted by %s [%d])", |
| 405 | error->ring[i].comm, |
| 406 | error->ring[i].pid); |
| 407 | err_printf(m, " --- gtt_offset = 0x%08x\n", |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 408 | obj->gtt_offset); |
Chris Wilson | ab0e7ff | 2014-02-25 17:11:24 +0200 | [diff] [blame] | 409 | print_error_obj(m, obj); |
| 410 | } |
| 411 | |
| 412 | obj = error->ring[i].wa_batchbuffer; |
| 413 | if (obj) { |
| 414 | err_printf(m, "%s (w/a) --- gtt_offset = 0x%08x\n", |
| 415 | dev_priv->ring[i].name, obj->gtt_offset); |
| 416 | print_error_obj(m, obj); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | if (error->ring[i].num_requests) { |
| 420 | err_printf(m, "%s --- %d requests\n", |
| 421 | dev_priv->ring[i].name, |
| 422 | error->ring[i].num_requests); |
| 423 | for (j = 0; j < error->ring[i].num_requests; j++) { |
| 424 | err_printf(m, " seqno 0x%08x, emitted %ld, tail 0x%08x\n", |
| 425 | error->ring[i].requests[j].seqno, |
| 426 | error->ring[i].requests[j].jiffies, |
| 427 | error->ring[i].requests[j].tail); |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | if ((obj = error->ring[i].ringbuffer)) { |
| 432 | err_printf(m, "%s --- ringbuffer = 0x%08x\n", |
| 433 | dev_priv->ring[i].name, |
| 434 | obj->gtt_offset); |
Chris Wilson | ab0e7ff | 2014-02-25 17:11:24 +0200 | [diff] [blame] | 435 | print_error_obj(m, obj); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 436 | } |
| 437 | |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 438 | if ((obj = error->ring[i].hws_page)) { |
Chris Wilson | f3ce382 | 2014-01-23 22:40:36 +0000 | [diff] [blame] | 439 | err_printf(m, "%s --- HW Status = 0x%08x\n", |
| 440 | dev_priv->ring[i].name, |
| 441 | obj->gtt_offset); |
| 442 | offset = 0; |
| 443 | for (elt = 0; elt < PAGE_SIZE/16; elt += 4) { |
| 444 | err_printf(m, "[%04x] %08x %08x %08x %08x\n", |
| 445 | offset, |
| 446 | obj->pages[0][elt], |
| 447 | obj->pages[0][elt+1], |
| 448 | obj->pages[0][elt+2], |
| 449 | obj->pages[0][elt+3]); |
| 450 | offset += 16; |
| 451 | } |
| 452 | } |
| 453 | |
Chris Wilson | 372fbb8 | 2014-01-27 13:52:34 +0000 | [diff] [blame] | 454 | if ((obj = error->ring[i].ctx)) { |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 455 | err_printf(m, "%s --- HW Context = 0x%08x\n", |
| 456 | dev_priv->ring[i].name, |
| 457 | obj->gtt_offset); |
Ben Widawsky | 17d3674 | 2014-04-05 14:55:53 -0700 | [diff] [blame] | 458 | print_error_obj(m, obj); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 459 | } |
| 460 | } |
| 461 | |
| 462 | if (error->overlay) |
| 463 | intel_overlay_print_error_state(m, error->overlay); |
| 464 | |
| 465 | if (error->display) |
| 466 | intel_display_print_error_state(m, dev, error->display); |
| 467 | |
| 468 | out: |
| 469 | if (m->bytes == 0 && m->err) |
| 470 | return m->err; |
| 471 | |
| 472 | return 0; |
| 473 | } |
| 474 | |
| 475 | int i915_error_state_buf_init(struct drm_i915_error_state_buf *ebuf, |
| 476 | size_t count, loff_t pos) |
| 477 | { |
| 478 | memset(ebuf, 0, sizeof(*ebuf)); |
| 479 | |
| 480 | /* We need to have enough room to store any i915_error_state printf |
| 481 | * so that we can move it to start position. |
| 482 | */ |
| 483 | ebuf->size = count + 1 > PAGE_SIZE ? count + 1 : PAGE_SIZE; |
| 484 | ebuf->buf = kmalloc(ebuf->size, |
| 485 | GFP_TEMPORARY | __GFP_NORETRY | __GFP_NOWARN); |
| 486 | |
| 487 | if (ebuf->buf == NULL) { |
| 488 | ebuf->size = PAGE_SIZE; |
| 489 | ebuf->buf = kmalloc(ebuf->size, GFP_TEMPORARY); |
| 490 | } |
| 491 | |
| 492 | if (ebuf->buf == NULL) { |
| 493 | ebuf->size = 128; |
| 494 | ebuf->buf = kmalloc(ebuf->size, GFP_TEMPORARY); |
| 495 | } |
| 496 | |
| 497 | if (ebuf->buf == NULL) |
| 498 | return -ENOMEM; |
| 499 | |
| 500 | ebuf->start = pos; |
| 501 | |
| 502 | return 0; |
| 503 | } |
| 504 | |
| 505 | static void i915_error_object_free(struct drm_i915_error_object *obj) |
| 506 | { |
| 507 | int page; |
| 508 | |
| 509 | if (obj == NULL) |
| 510 | return; |
| 511 | |
| 512 | for (page = 0; page < obj->page_count; page++) |
| 513 | kfree(obj->pages[page]); |
| 514 | |
| 515 | kfree(obj); |
| 516 | } |
| 517 | |
| 518 | static void i915_error_state_free(struct kref *error_ref) |
| 519 | { |
| 520 | struct drm_i915_error_state *error = container_of(error_ref, |
| 521 | typeof(*error), ref); |
| 522 | int i; |
| 523 | |
| 524 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { |
| 525 | i915_error_object_free(error->ring[i].batchbuffer); |
| 526 | i915_error_object_free(error->ring[i].ringbuffer); |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 527 | i915_error_object_free(error->ring[i].hws_page); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 528 | i915_error_object_free(error->ring[i].ctx); |
| 529 | kfree(error->ring[i].requests); |
| 530 | } |
| 531 | |
| 532 | kfree(error->active_bo); |
| 533 | kfree(error->overlay); |
| 534 | kfree(error->display); |
| 535 | kfree(error); |
| 536 | } |
| 537 | |
| 538 | static struct drm_i915_error_object * |
| 539 | i915_error_object_create_sized(struct drm_i915_private *dev_priv, |
| 540 | struct drm_i915_gem_object *src, |
Ben Widawsky | a7b9107 | 2013-12-06 14:10:52 -0800 | [diff] [blame] | 541 | struct i915_address_space *vm, |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 542 | const int num_pages) |
| 543 | { |
| 544 | struct drm_i915_error_object *dst; |
| 545 | int i; |
| 546 | u32 reloc_offset; |
| 547 | |
| 548 | if (src == NULL || src->pages == NULL) |
| 549 | return NULL; |
| 550 | |
| 551 | dst = kmalloc(sizeof(*dst) + num_pages * sizeof(u32 *), GFP_ATOMIC); |
| 552 | if (dst == NULL) |
| 553 | return NULL; |
| 554 | |
Ben Widawsky | a7b9107 | 2013-12-06 14:10:52 -0800 | [diff] [blame] | 555 | reloc_offset = dst->gtt_offset = i915_gem_obj_offset(src, vm); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 556 | for (i = 0; i < num_pages; i++) { |
| 557 | unsigned long flags; |
| 558 | void *d; |
| 559 | |
| 560 | d = kmalloc(PAGE_SIZE, GFP_ATOMIC); |
| 561 | if (d == NULL) |
| 562 | goto unwind; |
| 563 | |
| 564 | local_irq_save(flags); |
Chris Wilson | 8b6124a | 2014-01-30 14:38:16 +0000 | [diff] [blame] | 565 | if (src->cache_level == I915_CACHE_NONE && |
| 566 | reloc_offset < dev_priv->gtt.mappable_end && |
Ben Widawsky | 496bfcb | 2013-12-06 14:10:53 -0800 | [diff] [blame] | 567 | src->has_global_gtt_mapping && |
| 568 | i915_is_ggtt(vm)) { |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 569 | void __iomem *s; |
| 570 | |
| 571 | /* Simply ignore tiling or any overlapping fence. |
| 572 | * It's part of the error state, and this hopefully |
| 573 | * captures what the GPU read. |
| 574 | */ |
| 575 | |
| 576 | s = io_mapping_map_atomic_wc(dev_priv->gtt.mappable, |
| 577 | reloc_offset); |
| 578 | memcpy_fromio(d, s, PAGE_SIZE); |
| 579 | io_mapping_unmap_atomic(s); |
| 580 | } else if (src->stolen) { |
| 581 | unsigned long offset; |
| 582 | |
| 583 | offset = dev_priv->mm.stolen_base; |
| 584 | offset += src->stolen->start; |
| 585 | offset += i << PAGE_SHIFT; |
| 586 | |
| 587 | memcpy_fromio(d, (void __iomem *) offset, PAGE_SIZE); |
| 588 | } else { |
| 589 | struct page *page; |
| 590 | void *s; |
| 591 | |
| 592 | page = i915_gem_object_get_page(src, i); |
| 593 | |
| 594 | drm_clflush_pages(&page, 1); |
| 595 | |
| 596 | s = kmap_atomic(page); |
| 597 | memcpy(d, s, PAGE_SIZE); |
| 598 | kunmap_atomic(s); |
| 599 | |
| 600 | drm_clflush_pages(&page, 1); |
| 601 | } |
| 602 | local_irq_restore(flags); |
| 603 | |
| 604 | dst->pages[i] = d; |
| 605 | |
| 606 | reloc_offset += PAGE_SIZE; |
| 607 | } |
| 608 | dst->page_count = num_pages; |
| 609 | |
| 610 | return dst; |
| 611 | |
| 612 | unwind: |
| 613 | while (i--) |
| 614 | kfree(dst->pages[i]); |
| 615 | kfree(dst); |
| 616 | return NULL; |
| 617 | } |
Ben Widawsky | a7b9107 | 2013-12-06 14:10:52 -0800 | [diff] [blame] | 618 | #define i915_error_object_create(dev_priv, src, vm) \ |
| 619 | i915_error_object_create_sized((dev_priv), (src), (vm), \ |
| 620 | (src)->base.size>>PAGE_SHIFT) |
| 621 | |
| 622 | #define i915_error_ggtt_object_create(dev_priv, src) \ |
| 623 | i915_error_object_create_sized((dev_priv), (src), &(dev_priv)->gtt.base, \ |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 624 | (src)->base.size>>PAGE_SHIFT) |
| 625 | |
| 626 | static void capture_bo(struct drm_i915_error_buffer *err, |
| 627 | struct drm_i915_gem_object *obj) |
| 628 | { |
| 629 | err->size = obj->base.size; |
| 630 | err->name = obj->base.name; |
| 631 | err->rseqno = obj->last_read_seqno; |
| 632 | err->wseqno = obj->last_write_seqno; |
| 633 | err->gtt_offset = i915_gem_obj_ggtt_offset(obj); |
| 634 | err->read_domains = obj->base.read_domains; |
| 635 | err->write_domain = obj->base.write_domain; |
| 636 | err->fence_reg = obj->fence_reg; |
| 637 | err->pinned = 0; |
Ben Widawsky | d7f46fc | 2013-12-06 14:10:55 -0800 | [diff] [blame] | 638 | if (i915_gem_obj_is_pinned(obj)) |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 639 | err->pinned = 1; |
| 640 | if (obj->user_pin_count > 0) |
| 641 | err->pinned = -1; |
| 642 | err->tiling = obj->tiling_mode; |
| 643 | err->dirty = obj->dirty; |
| 644 | err->purgeable = obj->madv != I915_MADV_WILLNEED; |
Chris Wilson | 5cc9ed4 | 2014-05-16 14:22:37 +0100 | [diff] [blame] | 645 | err->userptr = obj->userptr.mm != NULL; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 646 | err->ring = obj->ring ? obj->ring->id : -1; |
| 647 | err->cache_level = obj->cache_level; |
| 648 | } |
| 649 | |
| 650 | static u32 capture_active_bo(struct drm_i915_error_buffer *err, |
| 651 | int count, struct list_head *head) |
| 652 | { |
Ben Widawsky | ca191b1 | 2013-07-31 17:00:14 -0700 | [diff] [blame] | 653 | struct i915_vma *vma; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 654 | int i = 0; |
| 655 | |
Ben Widawsky | ca191b1 | 2013-07-31 17:00:14 -0700 | [diff] [blame] | 656 | list_for_each_entry(vma, head, mm_list) { |
| 657 | capture_bo(err++, vma->obj); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 658 | if (++i == count) |
| 659 | break; |
| 660 | } |
| 661 | |
| 662 | return i; |
| 663 | } |
| 664 | |
| 665 | static u32 capture_pinned_bo(struct drm_i915_error_buffer *err, |
| 666 | int count, struct list_head *head) |
| 667 | { |
| 668 | struct drm_i915_gem_object *obj; |
| 669 | int i = 0; |
| 670 | |
| 671 | list_for_each_entry(obj, head, global_list) { |
Ben Widawsky | d7f46fc | 2013-12-06 14:10:55 -0800 | [diff] [blame] | 672 | if (!i915_gem_obj_is_pinned(obj)) |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 673 | continue; |
| 674 | |
| 675 | capture_bo(err++, obj); |
| 676 | if (++i == count) |
| 677 | break; |
| 678 | } |
| 679 | |
| 680 | return i; |
| 681 | } |
| 682 | |
Ben Widawsky | 011cf57 | 2014-02-04 12:18:55 +0000 | [diff] [blame] | 683 | /* Generate a semi-unique error code. The code is not meant to have meaning, The |
| 684 | * code's only purpose is to try to prevent false duplicated bug reports by |
| 685 | * grossly estimating a GPU error state. |
| 686 | * |
| 687 | * TODO Ideally, hashing the batchbuffer would be a very nice way to determine |
| 688 | * the hang if we could strip the GTT offset information from it. |
| 689 | * |
| 690 | * It's only a small step better than a random number in its current form. |
| 691 | */ |
| 692 | static uint32_t i915_error_generate_code(struct drm_i915_private *dev_priv, |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 693 | struct drm_i915_error_state *error, |
| 694 | int *ring_id) |
Ben Widawsky | 011cf57 | 2014-02-04 12:18:55 +0000 | [diff] [blame] | 695 | { |
| 696 | uint32_t error_code = 0; |
| 697 | int i; |
| 698 | |
| 699 | /* IPEHR would be an ideal way to detect errors, as it's the gross |
| 700 | * measure of "the command that hung." However, has some very common |
| 701 | * synchronization commands which almost always appear in the case |
| 702 | * strictly a client bug. Use instdone to differentiate those some. |
| 703 | */ |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 704 | for (i = 0; i < I915_NUM_RINGS; i++) { |
| 705 | if (error->ring[i].hangcheck_action == HANGCHECK_HUNG) { |
| 706 | if (ring_id) |
| 707 | *ring_id = i; |
| 708 | |
Ben Widawsky | 011cf57 | 2014-02-04 12:18:55 +0000 | [diff] [blame] | 709 | return error->ring[i].ipehr ^ error->ring[i].instdone; |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 710 | } |
| 711 | } |
Ben Widawsky | 011cf57 | 2014-02-04 12:18:55 +0000 | [diff] [blame] | 712 | |
| 713 | return error_code; |
| 714 | } |
| 715 | |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 716 | static void i915_gem_record_fences(struct drm_device *dev, |
| 717 | struct drm_i915_error_state *error) |
| 718 | { |
| 719 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 720 | int i; |
| 721 | |
| 722 | /* Fences */ |
| 723 | switch (INTEL_INFO(dev)->gen) { |
Ben Widawsky | 5ab3133 | 2013-11-02 21:07:03 -0700 | [diff] [blame] | 724 | case 8: |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 725 | case 7: |
| 726 | case 6: |
| 727 | for (i = 0; i < dev_priv->num_fence_regs; i++) |
| 728 | error->fence[i] = I915_READ64(FENCE_REG_SANDYBRIDGE_0 + (i * 8)); |
| 729 | break; |
| 730 | case 5: |
| 731 | case 4: |
| 732 | for (i = 0; i < 16; i++) |
| 733 | error->fence[i] = I915_READ64(FENCE_REG_965_0 + (i * 8)); |
| 734 | break; |
| 735 | case 3: |
| 736 | if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
| 737 | for (i = 0; i < 8; i++) |
| 738 | error->fence[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4)); |
| 739 | case 2: |
| 740 | for (i = 0; i < 8; i++) |
| 741 | error->fence[i] = I915_READ(FENCE_REG_830_0 + (i * 4)); |
| 742 | break; |
| 743 | |
| 744 | default: |
| 745 | BUG(); |
| 746 | } |
| 747 | } |
| 748 | |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 749 | static void i915_record_ring_state(struct drm_device *dev, |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 750 | struct intel_engine_cs *ring, |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 751 | struct drm_i915_error_ring *ering) |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 752 | { |
| 753 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 754 | |
| 755 | if (INTEL_INFO(dev)->gen >= 6) { |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 756 | ering->rc_psmi = I915_READ(ring->mmio_base + 0x50); |
| 757 | ering->fault_reg = I915_READ(RING_FAULT_REG(ring)); |
| 758 | ering->semaphore_mboxes[0] |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 759 | = I915_READ(RING_SYNC_0(ring->mmio_base)); |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 760 | ering->semaphore_mboxes[1] |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 761 | = I915_READ(RING_SYNC_1(ring->mmio_base)); |
Ben Widawsky | ebc348b | 2014-04-29 14:52:28 -0700 | [diff] [blame] | 762 | ering->semaphore_seqno[0] = ring->semaphore.sync_seqno[0]; |
| 763 | ering->semaphore_seqno[1] = ring->semaphore.sync_seqno[1]; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 764 | } |
| 765 | |
Ben Widawsky | 4e5aabf | 2013-08-12 16:53:04 -0700 | [diff] [blame] | 766 | if (HAS_VEBOX(dev)) { |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 767 | ering->semaphore_mboxes[2] = |
Ben Widawsky | 4e5aabf | 2013-08-12 16:53:04 -0700 | [diff] [blame] | 768 | I915_READ(RING_SYNC_2(ring->mmio_base)); |
Ben Widawsky | ebc348b | 2014-04-29 14:52:28 -0700 | [diff] [blame] | 769 | ering->semaphore_seqno[2] = ring->semaphore.sync_seqno[2]; |
Ben Widawsky | 4e5aabf | 2013-08-12 16:53:04 -0700 | [diff] [blame] | 770 | } |
| 771 | |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 772 | if (INTEL_INFO(dev)->gen >= 4) { |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 773 | ering->faddr = I915_READ(RING_DMA_FADD(ring->mmio_base)); |
| 774 | ering->ipeir = I915_READ(RING_IPEIR(ring->mmio_base)); |
| 775 | ering->ipehr = I915_READ(RING_IPEHR(ring->mmio_base)); |
| 776 | ering->instdone = I915_READ(RING_INSTDONE(ring->mmio_base)); |
| 777 | ering->instps = I915_READ(RING_INSTPS(ring->mmio_base)); |
| 778 | ering->bbaddr = I915_READ(RING_BBADDR(ring->mmio_base)); |
Ben Widawsky | 13ffadd | 2014-04-01 16:31:07 -0700 | [diff] [blame] | 779 | if (INTEL_INFO(dev)->gen >= 8) { |
| 780 | ering->faddr |= (u64) I915_READ(RING_DMA_FADD_UDW(ring->mmio_base)) << 32; |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 781 | ering->bbaddr |= (u64) I915_READ(RING_BBADDR_UDW(ring->mmio_base)) << 32; |
Ben Widawsky | 13ffadd | 2014-04-01 16:31:07 -0700 | [diff] [blame] | 782 | } |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 783 | ering->bbstate = I915_READ(RING_BBSTATE(ring->mmio_base)); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 784 | } else { |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 785 | ering->faddr = I915_READ(DMA_FADD_I8XX); |
| 786 | ering->ipeir = I915_READ(IPEIR); |
| 787 | ering->ipehr = I915_READ(IPEHR); |
| 788 | ering->instdone = I915_READ(INSTDONE); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 789 | } |
| 790 | |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 791 | ering->waiting = waitqueue_active(&ring->irq_queue); |
| 792 | ering->instpm = I915_READ(RING_INSTPM(ring->mmio_base)); |
| 793 | ering->seqno = ring->get_seqno(ring, false); |
| 794 | ering->acthd = intel_ring_get_active_head(ring); |
| 795 | ering->head = I915_READ_HEAD(ring); |
| 796 | ering->tail = I915_READ_TAIL(ring); |
| 797 | ering->ctl = I915_READ_CTL(ring); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 798 | |
Chris Wilson | f3ce382 | 2014-01-23 22:40:36 +0000 | [diff] [blame] | 799 | if (I915_NEED_GFX_HWS(dev)) { |
| 800 | int mmio; |
| 801 | |
| 802 | if (IS_GEN7(dev)) { |
| 803 | switch (ring->id) { |
| 804 | default: |
| 805 | case RCS: |
| 806 | mmio = RENDER_HWS_PGA_GEN7; |
| 807 | break; |
| 808 | case BCS: |
| 809 | mmio = BLT_HWS_PGA_GEN7; |
| 810 | break; |
| 811 | case VCS: |
| 812 | mmio = BSD_HWS_PGA_GEN7; |
| 813 | break; |
| 814 | case VECS: |
| 815 | mmio = VEBOX_HWS_PGA_GEN7; |
| 816 | break; |
| 817 | } |
| 818 | } else if (IS_GEN6(ring->dev)) { |
| 819 | mmio = RING_HWS_PGA_GEN6(ring->mmio_base); |
| 820 | } else { |
| 821 | /* XXX: gen8 returns to sanity */ |
| 822 | mmio = RING_HWS_PGA(ring->mmio_base); |
| 823 | } |
| 824 | |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 825 | ering->hws = I915_READ(mmio); |
Chris Wilson | f3ce382 | 2014-01-23 22:40:36 +0000 | [diff] [blame] | 826 | } |
| 827 | |
Oscar Mateo | ee1b1e5 | 2014-05-22 14:13:35 +0100 | [diff] [blame] | 828 | ering->cpu_ring_head = ring->buffer->head; |
| 829 | ering->cpu_ring_tail = ring->buffer->tail; |
Mika Kuoppala | da66146 | 2013-09-06 16:03:28 +0300 | [diff] [blame] | 830 | |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 831 | ering->hangcheck_score = ring->hangcheck.score; |
| 832 | ering->hangcheck_action = ring->hangcheck.action; |
Ben Widawsky | 6c7a01e | 2014-01-30 00:19:40 -0800 | [diff] [blame] | 833 | |
| 834 | if (USES_PPGTT(dev)) { |
| 835 | int i; |
| 836 | |
| 837 | ering->vm_info.gfx_mode = I915_READ(RING_MODE_GEN7(ring)); |
| 838 | |
| 839 | switch (INTEL_INFO(dev)->gen) { |
| 840 | case 8: |
| 841 | for (i = 0; i < 4; i++) { |
| 842 | ering->vm_info.pdp[i] = |
| 843 | I915_READ(GEN8_RING_PDP_UDW(ring, i)); |
| 844 | ering->vm_info.pdp[i] <<= 32; |
| 845 | ering->vm_info.pdp[i] |= |
| 846 | I915_READ(GEN8_RING_PDP_LDW(ring, i)); |
| 847 | } |
| 848 | break; |
| 849 | case 7: |
Ben Widawsky | ae89f44 | 2014-03-14 23:01:58 -0700 | [diff] [blame] | 850 | ering->vm_info.pp_dir_base = |
| 851 | I915_READ(RING_PP_DIR_BASE(ring)); |
Ben Widawsky | 6c7a01e | 2014-01-30 00:19:40 -0800 | [diff] [blame] | 852 | break; |
| 853 | case 6: |
Ben Widawsky | ae89f44 | 2014-03-14 23:01:58 -0700 | [diff] [blame] | 854 | ering->vm_info.pp_dir_base = |
| 855 | I915_READ(RING_PP_DIR_BASE_READ(ring)); |
Ben Widawsky | 6c7a01e | 2014-01-30 00:19:40 -0800 | [diff] [blame] | 856 | break; |
| 857 | } |
| 858 | } |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 859 | } |
| 860 | |
| 861 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 862 | static void i915_gem_record_active_context(struct intel_engine_cs *ring, |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 863 | struct drm_i915_error_state *error, |
| 864 | struct drm_i915_error_ring *ering) |
| 865 | { |
| 866 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
| 867 | struct drm_i915_gem_object *obj; |
| 868 | |
| 869 | /* Currently render ring is the only HW context user */ |
| 870 | if (ring->id != RCS || !error->ccid) |
| 871 | return; |
| 872 | |
| 873 | list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) { |
| 874 | if ((error->ccid & PAGE_MASK) == i915_gem_obj_ggtt_offset(obj)) { |
Ben Widawsky | 17d3674 | 2014-04-05 14:55:53 -0700 | [diff] [blame] | 875 | ering->ctx = i915_error_ggtt_object_create(dev_priv, obj); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 876 | break; |
| 877 | } |
| 878 | } |
| 879 | } |
| 880 | |
| 881 | static void i915_gem_record_rings(struct drm_device *dev, |
| 882 | struct drm_i915_error_state *error) |
| 883 | { |
| 884 | struct drm_i915_private *dev_priv = dev->dev_private; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 885 | struct drm_i915_gem_request *request; |
| 886 | int i, count; |
| 887 | |
Chris Wilson | 372fbb8 | 2014-01-27 13:52:34 +0000 | [diff] [blame] | 888 | for (i = 0; i < I915_NUM_RINGS; i++) { |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 889 | struct intel_engine_cs *ring = &dev_priv->ring[i]; |
Chris Wilson | 372fbb8 | 2014-01-27 13:52:34 +0000 | [diff] [blame] | 890 | |
| 891 | if (ring->dev == NULL) |
| 892 | continue; |
| 893 | |
| 894 | error->ring[i].valid = true; |
| 895 | |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 896 | i915_record_ring_state(dev, ring, &error->ring[i]); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 897 | |
Chris Wilson | ab0e7ff | 2014-02-25 17:11:24 +0200 | [diff] [blame] | 898 | error->ring[i].pid = -1; |
| 899 | request = i915_gem_find_active_request(ring); |
| 900 | if (request) { |
| 901 | /* We need to copy these to an anonymous buffer |
| 902 | * as the simplest method to avoid being overwritten |
| 903 | * by userspace. |
| 904 | */ |
| 905 | error->ring[i].batchbuffer = |
| 906 | i915_error_object_create(dev_priv, |
| 907 | request->batch_obj, |
| 908 | request->ctx ? |
| 909 | request->ctx->vm : |
| 910 | &dev_priv->gtt.base); |
| 911 | |
| 912 | if (HAS_BROKEN_CS_TLB(dev_priv->dev) && |
| 913 | ring->scratch.obj) |
| 914 | error->ring[i].wa_batchbuffer = |
| 915 | i915_error_ggtt_object_create(dev_priv, |
| 916 | ring->scratch.obj); |
| 917 | |
| 918 | if (request->file_priv) { |
| 919 | struct task_struct *task; |
| 920 | |
| 921 | rcu_read_lock(); |
| 922 | task = pid_task(request->file_priv->file->pid, |
| 923 | PIDTYPE_PID); |
| 924 | if (task) { |
| 925 | strcpy(error->ring[i].comm, task->comm); |
| 926 | error->ring[i].pid = task->pid; |
| 927 | } |
| 928 | rcu_read_unlock(); |
| 929 | } |
| 930 | } |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 931 | |
| 932 | error->ring[i].ringbuffer = |
Oscar Mateo | ee1b1e5 | 2014-05-22 14:13:35 +0100 | [diff] [blame] | 933 | i915_error_ggtt_object_create(dev_priv, ring->buffer->obj); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 934 | |
Chris Wilson | f3ce382 | 2014-01-23 22:40:36 +0000 | [diff] [blame] | 935 | if (ring->status_page.obj) |
Ben Widawsky | 362b8af | 2014-01-30 00:19:38 -0800 | [diff] [blame] | 936 | error->ring[i].hws_page = |
Chris Wilson | f3ce382 | 2014-01-23 22:40:36 +0000 | [diff] [blame] | 937 | i915_error_ggtt_object_create(dev_priv, ring->status_page.obj); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 938 | |
| 939 | i915_gem_record_active_context(ring, error, &error->ring[i]); |
| 940 | |
| 941 | count = 0; |
| 942 | list_for_each_entry(request, &ring->request_list, list) |
| 943 | count++; |
| 944 | |
| 945 | error->ring[i].num_requests = count; |
| 946 | error->ring[i].requests = |
Daniel Vetter | a1e2265 | 2013-09-21 00:35:38 +0200 | [diff] [blame] | 947 | kcalloc(count, sizeof(*error->ring[i].requests), |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 948 | GFP_ATOMIC); |
| 949 | if (error->ring[i].requests == NULL) { |
| 950 | error->ring[i].num_requests = 0; |
| 951 | continue; |
| 952 | } |
| 953 | |
| 954 | count = 0; |
| 955 | list_for_each_entry(request, &ring->request_list, list) { |
| 956 | struct drm_i915_error_request *erq; |
| 957 | |
| 958 | erq = &error->ring[i].requests[count++]; |
| 959 | erq->seqno = request->seqno; |
| 960 | erq->jiffies = request->emitted_jiffies; |
| 961 | erq->tail = request->tail; |
| 962 | } |
| 963 | } |
| 964 | } |
| 965 | |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 966 | /* FIXME: Since pin count/bound list is global, we duplicate what we capture per |
| 967 | * VM. |
| 968 | */ |
| 969 | static void i915_gem_capture_vm(struct drm_i915_private *dev_priv, |
| 970 | struct drm_i915_error_state *error, |
| 971 | struct i915_address_space *vm, |
| 972 | const int ndx) |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 973 | { |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 974 | struct drm_i915_error_buffer *active_bo = NULL, *pinned_bo = NULL; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 975 | struct drm_i915_gem_object *obj; |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 976 | struct i915_vma *vma; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 977 | int i; |
| 978 | |
| 979 | i = 0; |
Ben Widawsky | ca191b1 | 2013-07-31 17:00:14 -0700 | [diff] [blame] | 980 | list_for_each_entry(vma, &vm->active_list, mm_list) |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 981 | i++; |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 982 | error->active_bo_count[ndx] = i; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 983 | list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) |
Ben Widawsky | d7f46fc | 2013-12-06 14:10:55 -0800 | [diff] [blame] | 984 | if (i915_gem_obj_is_pinned(obj)) |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 985 | i++; |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 986 | error->pinned_bo_count[ndx] = i - error->active_bo_count[ndx]; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 987 | |
| 988 | if (i) { |
Daniel Vetter | a1e2265 | 2013-09-21 00:35:38 +0200 | [diff] [blame] | 989 | active_bo = kcalloc(i, sizeof(*active_bo), GFP_ATOMIC); |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 990 | if (active_bo) |
| 991 | pinned_bo = active_bo + error->active_bo_count[ndx]; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 992 | } |
| 993 | |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 994 | if (active_bo) |
| 995 | error->active_bo_count[ndx] = |
| 996 | capture_active_bo(active_bo, |
| 997 | error->active_bo_count[ndx], |
Ben Widawsky | 5cef07e | 2013-07-16 16:50:08 -0700 | [diff] [blame] | 998 | &vm->active_list); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 999 | |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 1000 | if (pinned_bo) |
| 1001 | error->pinned_bo_count[ndx] = |
| 1002 | capture_pinned_bo(pinned_bo, |
| 1003 | error->pinned_bo_count[ndx], |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1004 | &dev_priv->mm.bound_list); |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 1005 | error->active_bo[ndx] = active_bo; |
| 1006 | error->pinned_bo[ndx] = pinned_bo; |
| 1007 | } |
| 1008 | |
| 1009 | static void i915_gem_capture_buffers(struct drm_i915_private *dev_priv, |
| 1010 | struct drm_i915_error_state *error) |
| 1011 | { |
| 1012 | struct i915_address_space *vm; |
| 1013 | int cnt = 0, i = 0; |
| 1014 | |
| 1015 | list_for_each_entry(vm, &dev_priv->vm_list, global_link) |
| 1016 | cnt++; |
| 1017 | |
Ben Widawsky | 95f5301 | 2013-07-31 17:00:15 -0700 | [diff] [blame] | 1018 | error->active_bo = kcalloc(cnt, sizeof(*error->active_bo), GFP_ATOMIC); |
| 1019 | error->pinned_bo = kcalloc(cnt, sizeof(*error->pinned_bo), GFP_ATOMIC); |
| 1020 | error->active_bo_count = kcalloc(cnt, sizeof(*error->active_bo_count), |
| 1021 | GFP_ATOMIC); |
| 1022 | error->pinned_bo_count = kcalloc(cnt, sizeof(*error->pinned_bo_count), |
| 1023 | GFP_ATOMIC); |
| 1024 | |
| 1025 | list_for_each_entry(vm, &dev_priv->vm_list, global_link) |
| 1026 | i915_gem_capture_vm(dev_priv, error, vm, i++); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1027 | } |
| 1028 | |
Ben Widawsky | 1d762aa | 2014-01-30 00:19:35 -0800 | [diff] [blame] | 1029 | /* Capture all registers which don't fit into another category. */ |
| 1030 | static void i915_capture_reg_state(struct drm_i915_private *dev_priv, |
| 1031 | struct drm_i915_error_state *error) |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1032 | { |
Ben Widawsky | 1d762aa | 2014-01-30 00:19:35 -0800 | [diff] [blame] | 1033 | struct drm_device *dev = dev_priv->dev; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1034 | |
Ben Widawsky | 654c90c | 2014-01-30 00:19:36 -0800 | [diff] [blame] | 1035 | /* General organization |
| 1036 | * 1. Registers specific to a single generation |
| 1037 | * 2. Registers which belong to multiple generations |
| 1038 | * 3. Feature specific registers. |
| 1039 | * 4. Everything else |
| 1040 | * Please try to follow the order. |
| 1041 | */ |
| 1042 | |
| 1043 | /* 1: Registers specific to a single generation */ |
| 1044 | if (IS_VALLEYVIEW(dev)) { |
| 1045 | error->ier = I915_READ(GTIER) | I915_READ(VLV_IER); |
| 1046 | error->forcewake = I915_READ(FORCEWAKE_VLV); |
| 1047 | } |
| 1048 | |
| 1049 | if (IS_GEN7(dev)) |
| 1050 | error->err_int = I915_READ(GEN7_ERR_INT); |
| 1051 | |
Ben Widawsky | 91ec5d1 | 2014-01-30 00:19:39 -0800 | [diff] [blame] | 1052 | if (IS_GEN6(dev)) { |
Ben Widawsky | 654c90c | 2014-01-30 00:19:36 -0800 | [diff] [blame] | 1053 | error->forcewake = I915_READ(FORCEWAKE); |
Ben Widawsky | 91ec5d1 | 2014-01-30 00:19:39 -0800 | [diff] [blame] | 1054 | error->gab_ctl = I915_READ(GAB_CTL); |
| 1055 | error->gfx_mode = I915_READ(GFX_MODE); |
| 1056 | } |
Ben Widawsky | 654c90c | 2014-01-30 00:19:36 -0800 | [diff] [blame] | 1057 | |
Ben Widawsky | 654c90c | 2014-01-30 00:19:36 -0800 | [diff] [blame] | 1058 | /* 2: Registers which belong to multiple generations */ |
| 1059 | if (INTEL_INFO(dev)->gen >= 7) |
| 1060 | error->forcewake = I915_READ(FORCEWAKE_MT); |
| 1061 | |
| 1062 | if (INTEL_INFO(dev)->gen >= 6) { |
| 1063 | error->derrmr = I915_READ(DERRMR); |
| 1064 | error->error = I915_READ(ERROR_GEN6); |
| 1065 | error->done_reg = I915_READ(DONE_REG); |
| 1066 | } |
| 1067 | |
| 1068 | /* 3: Feature specific registers */ |
Ben Widawsky | 91ec5d1 | 2014-01-30 00:19:39 -0800 | [diff] [blame] | 1069 | if (IS_GEN6(dev) || IS_GEN7(dev)) { |
| 1070 | error->gam_ecochk = I915_READ(GAM_ECOCHK); |
| 1071 | error->gac_eco = I915_READ(GAC_ECO_BITS); |
| 1072 | } |
| 1073 | |
| 1074 | /* 4: Everything else */ |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1075 | if (HAS_HW_CONTEXTS(dev)) |
| 1076 | error->ccid = I915_READ(CCID); |
| 1077 | |
| 1078 | if (HAS_PCH_SPLIT(dev)) |
| 1079 | error->ier = I915_READ(DEIER) | I915_READ(GTIER); |
Ben Widawsky | 654c90c | 2014-01-30 00:19:36 -0800 | [diff] [blame] | 1080 | else { |
Imre Deak | 51660e0 | 2014-04-14 20:24:31 +0300 | [diff] [blame] | 1081 | if (IS_GEN2(dev)) |
| 1082 | error->ier = I915_READ16(IER); |
| 1083 | else |
| 1084 | error->ier = I915_READ(IER); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1085 | } |
| 1086 | |
Ben Widawsky | 654c90c | 2014-01-30 00:19:36 -0800 | [diff] [blame] | 1087 | /* 4: Everything else */ |
| 1088 | error->eir = I915_READ(EIR); |
| 1089 | error->pgtbl_er = I915_READ(PGTBL_ER); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1090 | |
| 1091 | i915_get_extra_instdone(dev, error->extra_instdone); |
Ben Widawsky | 1d762aa | 2014-01-30 00:19:35 -0800 | [diff] [blame] | 1092 | } |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1093 | |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 1094 | static void i915_error_capture_msg(struct drm_device *dev, |
Mika Kuoppala | 5817446 | 2014-02-25 17:11:26 +0200 | [diff] [blame] | 1095 | struct drm_i915_error_state *error, |
| 1096 | bool wedged, |
| 1097 | const char *error_msg) |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 1098 | { |
| 1099 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1100 | u32 ecode; |
Mika Kuoppala | 5817446 | 2014-02-25 17:11:26 +0200 | [diff] [blame] | 1101 | int ring_id = -1, len; |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 1102 | |
| 1103 | ecode = i915_error_generate_code(dev_priv, error, &ring_id); |
| 1104 | |
Mika Kuoppala | 5817446 | 2014-02-25 17:11:26 +0200 | [diff] [blame] | 1105 | len = scnprintf(error->error_msg, sizeof(error->error_msg), |
| 1106 | "GPU HANG: ecode %d:0x%08x", ring_id, ecode); |
| 1107 | |
| 1108 | if (ring_id != -1 && error->ring[ring_id].pid != -1) |
| 1109 | len += scnprintf(error->error_msg + len, |
| 1110 | sizeof(error->error_msg) - len, |
| 1111 | ", in %s [%d]", |
| 1112 | error->ring[ring_id].comm, |
| 1113 | error->ring[ring_id].pid); |
| 1114 | |
| 1115 | scnprintf(error->error_msg + len, sizeof(error->error_msg) - len, |
| 1116 | ", reason: %s, action: %s", |
| 1117 | error_msg, |
| 1118 | wedged ? "reset" : "continue"); |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 1119 | } |
| 1120 | |
Mika Kuoppala | 48b031e | 2014-02-25 17:11:27 +0200 | [diff] [blame] | 1121 | static void i915_capture_gen_state(struct drm_i915_private *dev_priv, |
| 1122 | struct drm_i915_error_state *error) |
| 1123 | { |
| 1124 | error->reset_count = i915_reset_count(&dev_priv->gpu_error); |
Mika Kuoppala | 62d5d69 | 2014-02-25 17:11:28 +0200 | [diff] [blame] | 1125 | error->suspend_count = dev_priv->suspend_count; |
Mika Kuoppala | 48b031e | 2014-02-25 17:11:27 +0200 | [diff] [blame] | 1126 | } |
| 1127 | |
Ben Widawsky | 1d762aa | 2014-01-30 00:19:35 -0800 | [diff] [blame] | 1128 | /** |
| 1129 | * i915_capture_error_state - capture an error record for later analysis |
| 1130 | * @dev: drm device |
| 1131 | * |
| 1132 | * Should be called when an error is detected (either a hang or an error |
| 1133 | * interrupt) to capture error state from the time of the error. Fills |
| 1134 | * out a structure which becomes available in debugfs for user level tools |
| 1135 | * to pick up. |
| 1136 | */ |
Mika Kuoppala | 5817446 | 2014-02-25 17:11:26 +0200 | [diff] [blame] | 1137 | void i915_capture_error_state(struct drm_device *dev, bool wedged, |
| 1138 | const char *error_msg) |
Ben Widawsky | 1d762aa | 2014-01-30 00:19:35 -0800 | [diff] [blame] | 1139 | { |
Chris Wilson | 53a4c6b | 2014-01-30 14:38:15 +0000 | [diff] [blame] | 1140 | static bool warned; |
Ben Widawsky | 1d762aa | 2014-01-30 00:19:35 -0800 | [diff] [blame] | 1141 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1142 | struct drm_i915_error_state *error; |
| 1143 | unsigned long flags; |
Ben Widawsky | 1d762aa | 2014-01-30 00:19:35 -0800 | [diff] [blame] | 1144 | |
| 1145 | /* Account for pipe specific data like PIPE*STAT */ |
| 1146 | error = kzalloc(sizeof(*error), GFP_ATOMIC); |
| 1147 | if (!error) { |
| 1148 | DRM_DEBUG_DRIVER("out of memory, not capturing error state\n"); |
| 1149 | return; |
| 1150 | } |
| 1151 | |
Ben Widawsky | 1d762aa | 2014-01-30 00:19:35 -0800 | [diff] [blame] | 1152 | kref_init(&error->ref); |
| 1153 | |
Mika Kuoppala | 48b031e | 2014-02-25 17:11:27 +0200 | [diff] [blame] | 1154 | i915_capture_gen_state(dev_priv, error); |
Ben Widawsky | 1d762aa | 2014-01-30 00:19:35 -0800 | [diff] [blame] | 1155 | i915_capture_reg_state(dev_priv, error); |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1156 | i915_gem_capture_buffers(dev_priv, error); |
| 1157 | i915_gem_record_fences(dev, error); |
| 1158 | i915_gem_record_rings(dev, error); |
| 1159 | |
| 1160 | do_gettimeofday(&error->time); |
| 1161 | |
| 1162 | error->overlay = intel_overlay_capture_error_state(dev); |
| 1163 | error->display = intel_display_capture_error_state(dev); |
| 1164 | |
Mika Kuoppala | 5817446 | 2014-02-25 17:11:26 +0200 | [diff] [blame] | 1165 | i915_error_capture_msg(dev, error, wedged, error_msg); |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 1166 | DRM_INFO("%s\n", error->error_msg); |
| 1167 | |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1168 | spin_lock_irqsave(&dev_priv->gpu_error.lock, flags); |
| 1169 | if (dev_priv->gpu_error.first_error == NULL) { |
| 1170 | dev_priv->gpu_error.first_error = error; |
| 1171 | error = NULL; |
| 1172 | } |
| 1173 | spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags); |
| 1174 | |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 1175 | if (error) { |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1176 | i915_error_state_free(&error->ref); |
Mika Kuoppala | cb38300 | 2014-02-25 17:11:25 +0200 | [diff] [blame] | 1177 | return; |
| 1178 | } |
| 1179 | |
| 1180 | if (!warned) { |
| 1181 | DRM_INFO("GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.\n"); |
| 1182 | DRM_INFO("Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel\n"); |
| 1183 | DRM_INFO("drm/i915 developers can then reassign to the right component if it's not a kernel issue.\n"); |
| 1184 | DRM_INFO("The gpu crash dump is required to analyze gpu hangs, so please always attach it.\n"); |
| 1185 | DRM_INFO("GPU crash dump saved to /sys/class/drm/card%d/error\n", dev->primary->index); |
| 1186 | warned = true; |
| 1187 | } |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1188 | } |
| 1189 | |
| 1190 | void i915_error_state_get(struct drm_device *dev, |
| 1191 | struct i915_error_state_file_priv *error_priv) |
| 1192 | { |
| 1193 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1194 | unsigned long flags; |
| 1195 | |
| 1196 | spin_lock_irqsave(&dev_priv->gpu_error.lock, flags); |
| 1197 | error_priv->error = dev_priv->gpu_error.first_error; |
| 1198 | if (error_priv->error) |
| 1199 | kref_get(&error_priv->error->ref); |
| 1200 | spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags); |
| 1201 | |
| 1202 | } |
| 1203 | |
| 1204 | void i915_error_state_put(struct i915_error_state_file_priv *error_priv) |
| 1205 | { |
| 1206 | if (error_priv->error) |
| 1207 | kref_put(&error_priv->error->ref, i915_error_state_free); |
| 1208 | } |
| 1209 | |
| 1210 | void i915_destroy_error_state(struct drm_device *dev) |
| 1211 | { |
| 1212 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1213 | struct drm_i915_error_state *error; |
| 1214 | unsigned long flags; |
| 1215 | |
| 1216 | spin_lock_irqsave(&dev_priv->gpu_error.lock, flags); |
| 1217 | error = dev_priv->gpu_error.first_error; |
| 1218 | dev_priv->gpu_error.first_error = NULL; |
| 1219 | spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags); |
| 1220 | |
| 1221 | if (error) |
| 1222 | kref_put(&error->ref, i915_error_state_free); |
| 1223 | } |
| 1224 | |
| 1225 | const char *i915_cache_level_str(int type) |
| 1226 | { |
| 1227 | switch (type) { |
| 1228 | case I915_CACHE_NONE: return " uncached"; |
Chris Wilson | 350ec88 | 2013-08-06 13:17:02 +0100 | [diff] [blame] | 1229 | case I915_CACHE_LLC: return " snooped or LLC"; |
| 1230 | case I915_CACHE_L3_LLC: return " L3+LLC"; |
Chris Wilson | f56383c | 2013-09-25 10:23:19 +0100 | [diff] [blame] | 1231 | case I915_CACHE_WT: return " WT"; |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1232 | default: return ""; |
| 1233 | } |
| 1234 | } |
| 1235 | |
| 1236 | /* NB: please notice the memset */ |
| 1237 | void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone) |
| 1238 | { |
| 1239 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1240 | memset(instdone, 0, sizeof(*instdone) * I915_NUM_INSTDONE_REG); |
| 1241 | |
| 1242 | switch (INTEL_INFO(dev)->gen) { |
| 1243 | case 2: |
| 1244 | case 3: |
| 1245 | instdone[0] = I915_READ(INSTDONE); |
| 1246 | break; |
| 1247 | case 4: |
| 1248 | case 5: |
| 1249 | case 6: |
| 1250 | instdone[0] = I915_READ(INSTDONE_I965); |
| 1251 | instdone[1] = I915_READ(INSTDONE1); |
| 1252 | break; |
| 1253 | default: |
| 1254 | WARN_ONCE(1, "Unsupported platform\n"); |
| 1255 | case 7: |
Ben Widawsky | d0582ed | 2013-11-02 21:07:15 -0700 | [diff] [blame] | 1256 | case 8: |
Mika Kuoppala | 84734a0 | 2013-07-12 16:50:57 +0300 | [diff] [blame] | 1257 | instdone[0] = I915_READ(GEN7_INSTDONE_1); |
| 1258 | instdone[1] = I915_READ(GEN7_SC_INSTDONE); |
| 1259 | instdone[2] = I915_READ(GEN7_SAMPLER_INSTDONE); |
| 1260 | instdone[3] = I915_READ(GEN7_ROW_INSTDONE); |
| 1261 | break; |
| 1262 | } |
| 1263 | } |