Commit | Line | Data |
---|---|---|
84734a04 MK |
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 | ||
84734a04 MK |
33 | static const char *ring_str(int ring) |
34 | { | |
35 | switch (ring) { | |
36 | case RCS: return "render"; | |
37 | case VCS: return "bsd"; | |
38 | case BCS: return "blt"; | |
39 | case VECS: return "vebox"; | |
845f74a7 | 40 | case VCS2: return "bsd2"; |
84734a04 MK |
41 | default: return ""; |
42 | } | |
43 | } | |
44 | ||
45 | static const char *pin_flag(int pinned) | |
46 | { | |
47 | if (pinned > 0) | |
48 | return " P"; | |
49 | else if (pinned < 0) | |
50 | return " p"; | |
51 | else | |
52 | return ""; | |
53 | } | |
54 | ||
55 | static const char *tiling_flag(int tiling) | |
56 | { | |
57 | switch (tiling) { | |
58 | default: | |
59 | case I915_TILING_NONE: return ""; | |
60 | case I915_TILING_X: return " X"; | |
61 | case I915_TILING_Y: return " Y"; | |
62 | } | |
63 | } | |
64 | ||
65 | static const char *dirty_flag(int dirty) | |
66 | { | |
67 | return dirty ? " dirty" : ""; | |
68 | } | |
69 | ||
70 | static const char *purgeable_flag(int purgeable) | |
71 | { | |
72 | return purgeable ? " purgeable" : ""; | |
73 | } | |
74 | ||
75 | static bool __i915_error_ok(struct drm_i915_error_state_buf *e) | |
76 | { | |
77 | ||
78 | if (!e->err && WARN(e->bytes > (e->size - 1), "overflow")) { | |
79 | e->err = -ENOSPC; | |
80 | return false; | |
81 | } | |
82 | ||
83 | if (e->bytes == e->size - 1 || e->err) | |
84 | return false; | |
85 | ||
86 | return true; | |
87 | } | |
88 | ||
89 | static bool __i915_error_seek(struct drm_i915_error_state_buf *e, | |
90 | unsigned len) | |
91 | { | |
92 | if (e->pos + len <= e->start) { | |
93 | e->pos += len; | |
94 | return false; | |
95 | } | |
96 | ||
97 | /* First vsnprintf needs to fit in its entirety for memmove */ | |
98 | if (len >= e->size) { | |
99 | e->err = -EIO; | |
100 | return false; | |
101 | } | |
102 | ||
103 | return true; | |
104 | } | |
105 | ||
106 | static void __i915_error_advance(struct drm_i915_error_state_buf *e, | |
107 | unsigned len) | |
108 | { | |
109 | /* If this is first printf in this window, adjust it so that | |
110 | * start position matches start of the buffer | |
111 | */ | |
112 | ||
113 | if (e->pos < e->start) { | |
114 | const size_t off = e->start - e->pos; | |
115 | ||
116 | /* Should not happen but be paranoid */ | |
117 | if (off > len || e->bytes) { | |
118 | e->err = -EIO; | |
119 | return; | |
120 | } | |
121 | ||
122 | memmove(e->buf, e->buf + off, len - off); | |
123 | e->bytes = len - off; | |
124 | e->pos = e->start; | |
125 | return; | |
126 | } | |
127 | ||
128 | e->bytes += len; | |
129 | e->pos += len; | |
130 | } | |
131 | ||
132 | static void i915_error_vprintf(struct drm_i915_error_state_buf *e, | |
133 | const char *f, va_list args) | |
134 | { | |
135 | unsigned len; | |
136 | ||
137 | if (!__i915_error_ok(e)) | |
138 | return; | |
139 | ||
140 | /* Seek the first printf which is hits start position */ | |
141 | if (e->pos < e->start) { | |
e29bb4eb CW |
142 | va_list tmp; |
143 | ||
144 | va_copy(tmp, args); | |
1d2cb9a5 MK |
145 | len = vsnprintf(NULL, 0, f, tmp); |
146 | va_end(tmp); | |
147 | ||
148 | if (!__i915_error_seek(e, len)) | |
84734a04 MK |
149 | return; |
150 | } | |
151 | ||
152 | len = vsnprintf(e->buf + e->bytes, e->size - e->bytes, f, args); | |
153 | if (len >= e->size - e->bytes) | |
154 | len = e->size - e->bytes - 1; | |
155 | ||
156 | __i915_error_advance(e, len); | |
157 | } | |
158 | ||
159 | static void i915_error_puts(struct drm_i915_error_state_buf *e, | |
160 | const char *str) | |
161 | { | |
162 | unsigned len; | |
163 | ||
164 | if (!__i915_error_ok(e)) | |
165 | return; | |
166 | ||
167 | len = strlen(str); | |
168 | ||
169 | /* Seek the first printf which is hits start position */ | |
170 | if (e->pos < e->start) { | |
171 | if (!__i915_error_seek(e, len)) | |
172 | return; | |
173 | } | |
174 | ||
175 | if (len >= e->size - e->bytes) | |
176 | len = e->size - e->bytes - 1; | |
177 | memcpy(e->buf + e->bytes, str, len); | |
178 | ||
179 | __i915_error_advance(e, len); | |
180 | } | |
181 | ||
182 | #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__) | |
183 | #define err_puts(e, s) i915_error_puts(e, s) | |
184 | ||
185 | static void print_error_buffers(struct drm_i915_error_state_buf *m, | |
186 | const char *name, | |
187 | struct drm_i915_error_buffer *err, | |
188 | int count) | |
189 | { | |
b4716185 CW |
190 | int i; |
191 | ||
3a448734 | 192 | err_printf(m, " %s [%d]:\n", name, count); |
84734a04 MK |
193 | |
194 | while (count--) { | |
e1f12325 MT |
195 | err_printf(m, " %08x_%08x %8u %02x %02x [ ", |
196 | upper_32_bits(err->gtt_offset), | |
197 | lower_32_bits(err->gtt_offset), | |
84734a04 MK |
198 | err->size, |
199 | err->read_domains, | |
b4716185 CW |
200 | err->write_domain); |
201 | for (i = 0; i < I915_NUM_RINGS; i++) | |
202 | err_printf(m, "%02x ", err->rseqno[i]); | |
203 | ||
204 | err_printf(m, "] %02x", err->wseqno); | |
84734a04 MK |
205 | err_puts(m, pin_flag(err->pinned)); |
206 | err_puts(m, tiling_flag(err->tiling)); | |
207 | err_puts(m, dirty_flag(err->dirty)); | |
208 | err_puts(m, purgeable_flag(err->purgeable)); | |
5cc9ed4b | 209 | err_puts(m, err->userptr ? " userptr" : ""); |
84734a04 MK |
210 | err_puts(m, err->ring != -1 ? " " : ""); |
211 | err_puts(m, ring_str(err->ring)); | |
0a4cd7c8 | 212 | err_puts(m, i915_cache_level_str(m->i915, err->cache_level)); |
84734a04 MK |
213 | |
214 | if (err->name) | |
215 | err_printf(m, " (name: %d)", err->name); | |
216 | if (err->fence_reg != I915_FENCE_REG_NONE) | |
217 | err_printf(m, " (fence: %d)", err->fence_reg); | |
218 | ||
219 | err_puts(m, "\n"); | |
220 | err++; | |
221 | } | |
222 | } | |
223 | ||
da661464 MK |
224 | static const char *hangcheck_action_to_str(enum intel_ring_hangcheck_action a) |
225 | { | |
226 | switch (a) { | |
227 | case HANGCHECK_IDLE: | |
228 | return "idle"; | |
229 | case HANGCHECK_WAIT: | |
230 | return "wait"; | |
231 | case HANGCHECK_ACTIVE: | |
232 | return "active"; | |
f260fe7b MK |
233 | case HANGCHECK_ACTIVE_LOOP: |
234 | return "active (loop)"; | |
da661464 MK |
235 | case HANGCHECK_KICK: |
236 | return "kick"; | |
237 | case HANGCHECK_HUNG: | |
238 | return "hung"; | |
239 | } | |
240 | ||
241 | return "unknown"; | |
242 | } | |
243 | ||
84734a04 MK |
244 | static void i915_ring_error_state(struct drm_i915_error_state_buf *m, |
245 | struct drm_device *dev, | |
77c1aa84 DV |
246 | struct drm_i915_error_state *error, |
247 | int ring_idx) | |
84734a04 | 248 | { |
77c1aa84 DV |
249 | struct drm_i915_error_ring *ring = &error->ring[ring_idx]; |
250 | ||
362b8af7 | 251 | if (!ring->valid) |
372fbb8e CW |
252 | return; |
253 | ||
77c1aa84 | 254 | err_printf(m, "%s command stream:\n", ring_str(ring_idx)); |
94f8cf10 CW |
255 | err_printf(m, " START: 0x%08x\n", ring->start); |
256 | err_printf(m, " HEAD: 0x%08x\n", ring->head); | |
257 | err_printf(m, " TAIL: 0x%08x\n", ring->tail); | |
258 | err_printf(m, " CTL: 0x%08x\n", ring->ctl); | |
259 | err_printf(m, " HWS: 0x%08x\n", ring->hws); | |
e3243d16 | 260 | err_printf(m, " ACTHD: 0x%08x %08x\n", (u32)(ring->acthd>>32), (u32)ring->acthd); |
362b8af7 BW |
261 | err_printf(m, " IPEIR: 0x%08x\n", ring->ipeir); |
262 | err_printf(m, " IPEHR: 0x%08x\n", ring->ipehr); | |
263 | err_printf(m, " INSTDONE: 0x%08x\n", ring->instdone); | |
3dda20a9 | 264 | if (INTEL_INFO(dev)->gen >= 4) { |
e3243d16 | 265 | err_printf(m, " BBADDR: 0x%08x %08x\n", (u32)(ring->bbaddr>>32), (u32)ring->bbaddr); |
362b8af7 BW |
266 | err_printf(m, " BB_STATE: 0x%08x\n", ring->bbstate); |
267 | err_printf(m, " INSTPS: 0x%08x\n", ring->instps); | |
3dda20a9 | 268 | } |
362b8af7 | 269 | err_printf(m, " INSTPM: 0x%08x\n", ring->instpm); |
13ffadd1 BW |
270 | err_printf(m, " FADDR: 0x%08x %08x\n", upper_32_bits(ring->faddr), |
271 | lower_32_bits(ring->faddr)); | |
84734a04 | 272 | if (INTEL_INFO(dev)->gen >= 6) { |
362b8af7 BW |
273 | err_printf(m, " RC PSMI: 0x%08x\n", ring->rc_psmi); |
274 | err_printf(m, " FAULT_REG: 0x%08x\n", ring->fault_reg); | |
84734a04 | 275 | err_printf(m, " SYNC_0: 0x%08x [last synced 0x%08x]\n", |
362b8af7 BW |
276 | ring->semaphore_mboxes[0], |
277 | ring->semaphore_seqno[0]); | |
84734a04 | 278 | err_printf(m, " SYNC_1: 0x%08x [last synced 0x%08x]\n", |
362b8af7 BW |
279 | ring->semaphore_mboxes[1], |
280 | ring->semaphore_seqno[1]); | |
4e5aabfd BW |
281 | if (HAS_VEBOX(dev)) { |
282 | err_printf(m, " SYNC_2: 0x%08x [last synced 0x%08x]\n", | |
362b8af7 BW |
283 | ring->semaphore_mboxes[2], |
284 | ring->semaphore_seqno[2]); | |
4e5aabfd | 285 | } |
84734a04 | 286 | } |
6c7a01ec BW |
287 | if (USES_PPGTT(dev)) { |
288 | err_printf(m, " GFX_MODE: 0x%08x\n", ring->vm_info.gfx_mode); | |
289 | ||
290 | if (INTEL_INFO(dev)->gen >= 8) { | |
291 | int i; | |
292 | for (i = 0; i < 4; i++) | |
293 | err_printf(m, " PDP%d: 0x%016llx\n", | |
294 | i, ring->vm_info.pdp[i]); | |
295 | } else { | |
296 | err_printf(m, " PP_DIR_BASE: 0x%08x\n", | |
297 | ring->vm_info.pp_dir_base); | |
298 | } | |
299 | } | |
362b8af7 BW |
300 | err_printf(m, " seqno: 0x%08x\n", ring->seqno); |
301 | err_printf(m, " waiting: %s\n", yesno(ring->waiting)); | |
302 | err_printf(m, " ring->head: 0x%08x\n", ring->cpu_ring_head); | |
303 | err_printf(m, " ring->tail: 0x%08x\n", ring->cpu_ring_tail); | |
da661464 | 304 | err_printf(m, " hangcheck: %s [%d]\n", |
362b8af7 BW |
305 | hangcheck_action_to_str(ring->hangcheck_action), |
306 | ring->hangcheck_score); | |
84734a04 MK |
307 | } |
308 | ||
309 | void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...) | |
310 | { | |
311 | va_list args; | |
312 | ||
313 | va_start(args, f); | |
314 | i915_error_vprintf(e, f, args); | |
315 | va_end(args); | |
316 | } | |
317 | ||
ab0e7ff9 CW |
318 | static void print_error_obj(struct drm_i915_error_state_buf *m, |
319 | struct drm_i915_error_object *obj) | |
320 | { | |
321 | int page, offset, elt; | |
322 | ||
323 | for (page = offset = 0; page < obj->page_count; page++) { | |
324 | for (elt = 0; elt < PAGE_SIZE/4; elt++) { | |
325 | err_printf(m, "%08x : %08x\n", offset, | |
326 | obj->pages[page][elt]); | |
327 | offset += 4; | |
328 | } | |
329 | } | |
330 | } | |
331 | ||
84734a04 MK |
332 | int i915_error_state_to_str(struct drm_i915_error_state_buf *m, |
333 | const struct i915_error_state_file_priv *error_priv) | |
334 | { | |
335 | struct drm_device *dev = error_priv->dev; | |
50227e1c | 336 | struct drm_i915_private *dev_priv = dev->dev_private; |
84734a04 | 337 | struct drm_i915_error_state *error = error_priv->error; |
0ca36d78 | 338 | struct drm_i915_error_object *obj; |
ab0e7ff9 CW |
339 | int i, j, offset, elt; |
340 | int max_hangcheck_score; | |
84734a04 MK |
341 | |
342 | if (!error) { | |
343 | err_printf(m, "no error state collected\n"); | |
344 | goto out; | |
345 | } | |
346 | ||
cb383002 | 347 | err_printf(m, "%s\n", error->error_msg); |
84734a04 MK |
348 | err_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec, |
349 | error->time.tv_usec); | |
350 | err_printf(m, "Kernel: " UTS_RELEASE "\n"); | |
ab0e7ff9 CW |
351 | max_hangcheck_score = 0; |
352 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { | |
353 | if (error->ring[i].hangcheck_score > max_hangcheck_score) | |
354 | max_hangcheck_score = error->ring[i].hangcheck_score; | |
355 | } | |
356 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { | |
357 | if (error->ring[i].hangcheck_score == max_hangcheck_score && | |
358 | error->ring[i].pid != -1) { | |
359 | err_printf(m, "Active process (on ring %s): %s [%d]\n", | |
360 | ring_str(i), | |
361 | error->ring[i].comm, | |
362 | error->ring[i].pid); | |
363 | } | |
364 | } | |
48b031e3 | 365 | err_printf(m, "Reset count: %u\n", error->reset_count); |
62d5d69b | 366 | err_printf(m, "Suspend count: %u\n", error->suspend_count); |
ffbab09b | 367 | err_printf(m, "PCI ID: 0x%04x\n", dev->pdev->device); |
eb5be9d0 | 368 | err_printf(m, "IOMMU enabled?: %d\n", error->iommu); |
0ac7655c MK |
369 | |
370 | if (HAS_CSR(dev)) { | |
371 | struct intel_csr *csr = &dev_priv->csr; | |
372 | ||
373 | err_printf(m, "DMC loaded: %s\n", | |
374 | yesno(csr->dmc_payload != NULL)); | |
375 | err_printf(m, "DMC fw version: %d.%d\n", | |
376 | CSR_VERSION_MAJOR(csr->version), | |
377 | CSR_VERSION_MINOR(csr->version)); | |
378 | } | |
379 | ||
84734a04 MK |
380 | err_printf(m, "EIR: 0x%08x\n", error->eir); |
381 | err_printf(m, "IER: 0x%08x\n", error->ier); | |
885ea5a8 RV |
382 | if (INTEL_INFO(dev)->gen >= 8) { |
383 | for (i = 0; i < 4; i++) | |
384 | err_printf(m, "GTIER gt %d: 0x%08x\n", i, | |
385 | error->gtier[i]); | |
386 | } else if (HAS_PCH_SPLIT(dev) || IS_VALLEYVIEW(dev)) | |
387 | err_printf(m, "GTIER: 0x%08x\n", error->gtier[0]); | |
84734a04 MK |
388 | err_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er); |
389 | err_printf(m, "FORCEWAKE: 0x%08x\n", error->forcewake); | |
390 | err_printf(m, "DERRMR: 0x%08x\n", error->derrmr); | |
391 | err_printf(m, "CCID: 0x%08x\n", error->ccid); | |
094f9a54 | 392 | err_printf(m, "Missed interrupts: 0x%08lx\n", dev_priv->gpu_error.missed_irq_rings); |
84734a04 MK |
393 | |
394 | for (i = 0; i < dev_priv->num_fence_regs; i++) | |
395 | err_printf(m, " fence[%d] = %08llx\n", i, error->fence[i]); | |
396 | ||
397 | for (i = 0; i < ARRAY_SIZE(error->extra_instdone); i++) | |
398 | err_printf(m, " INSTDONE_%d: 0x%08x\n", i, | |
399 | error->extra_instdone[i]); | |
400 | ||
401 | if (INTEL_INFO(dev)->gen >= 6) { | |
402 | err_printf(m, "ERROR: 0x%08x\n", error->error); | |
6c826f34 MK |
403 | |
404 | if (INTEL_INFO(dev)->gen >= 8) | |
405 | err_printf(m, "FAULT_TLB_DATA: 0x%08x 0x%08x\n", | |
406 | error->fault_data1, error->fault_data0); | |
407 | ||
84734a04 MK |
408 | err_printf(m, "DONE_REG: 0x%08x\n", error->done_reg); |
409 | } | |
410 | ||
411 | if (INTEL_INFO(dev)->gen == 7) | |
412 | err_printf(m, "ERR_INT: 0x%08x\n", error->err_int); | |
413 | ||
77c1aa84 DV |
414 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) |
415 | i915_ring_error_state(m, dev, error, i); | |
84734a04 | 416 | |
3a448734 CW |
417 | for (i = 0; i < error->vm_count; i++) { |
418 | err_printf(m, "vm[%d]\n", i); | |
419 | ||
84734a04 | 420 | print_error_buffers(m, "Active", |
3a448734 CW |
421 | error->active_bo[i], |
422 | error->active_bo_count[i]); | |
84734a04 | 423 | |
84734a04 | 424 | print_error_buffers(m, "Pinned", |
3a448734 CW |
425 | error->pinned_bo[i], |
426 | error->pinned_bo_count[i]); | |
427 | } | |
84734a04 MK |
428 | |
429 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { | |
ab0e7ff9 CW |
430 | obj = error->ring[i].batchbuffer; |
431 | if (obj) { | |
432 | err_puts(m, dev_priv->ring[i].name); | |
433 | if (error->ring[i].pid != -1) | |
434 | err_printf(m, " (submitted by %s [%d])", | |
435 | error->ring[i].comm, | |
436 | error->ring[i].pid); | |
e1f12325 MT |
437 | err_printf(m, " --- gtt_offset = 0x%08x %08x\n", |
438 | upper_32_bits(obj->gtt_offset), | |
439 | lower_32_bits(obj->gtt_offset)); | |
ab0e7ff9 CW |
440 | print_error_obj(m, obj); |
441 | } | |
442 | ||
443 | obj = error->ring[i].wa_batchbuffer; | |
444 | if (obj) { | |
445 | err_printf(m, "%s (w/a) --- gtt_offset = 0x%08x\n", | |
e1f12325 MT |
446 | dev_priv->ring[i].name, |
447 | lower_32_bits(obj->gtt_offset)); | |
ab0e7ff9 | 448 | print_error_obj(m, obj); |
84734a04 MK |
449 | } |
450 | ||
451 | if (error->ring[i].num_requests) { | |
452 | err_printf(m, "%s --- %d requests\n", | |
453 | dev_priv->ring[i].name, | |
454 | error->ring[i].num_requests); | |
455 | for (j = 0; j < error->ring[i].num_requests; j++) { | |
456 | err_printf(m, " seqno 0x%08x, emitted %ld, tail 0x%08x\n", | |
457 | error->ring[i].requests[j].seqno, | |
458 | error->ring[i].requests[j].jiffies, | |
459 | error->ring[i].requests[j].tail); | |
460 | } | |
461 | } | |
462 | ||
463 | if ((obj = error->ring[i].ringbuffer)) { | |
464 | err_printf(m, "%s --- ringbuffer = 0x%08x\n", | |
465 | dev_priv->ring[i].name, | |
e1f12325 | 466 | lower_32_bits(obj->gtt_offset)); |
ab0e7ff9 | 467 | print_error_obj(m, obj); |
84734a04 MK |
468 | } |
469 | ||
362b8af7 | 470 | if ((obj = error->ring[i].hws_page)) { |
3a5a0393 JB |
471 | u64 hws_offset = obj->gtt_offset; |
472 | u32 *hws_page = &obj->pages[0][0]; | |
473 | ||
474 | if (i915.enable_execlists) { | |
475 | hws_offset += LRC_PPHWSP_PN * PAGE_SIZE; | |
476 | hws_page = &obj->pages[LRC_PPHWSP_PN][0]; | |
477 | } | |
d1675198 | 478 | err_printf(m, "%s --- HW Status = 0x%08llx\n", |
3a5a0393 | 479 | dev_priv->ring[i].name, hws_offset); |
f3ce3821 CW |
480 | offset = 0; |
481 | for (elt = 0; elt < PAGE_SIZE/16; elt += 4) { | |
482 | err_printf(m, "[%04x] %08x %08x %08x %08x\n", | |
483 | offset, | |
3a5a0393 JB |
484 | hws_page[elt], |
485 | hws_page[elt+1], | |
486 | hws_page[elt+2], | |
487 | hws_page[elt+3]); | |
f3ce3821 CW |
488 | offset += 16; |
489 | } | |
490 | } | |
491 | ||
372fbb8e | 492 | if ((obj = error->ring[i].ctx)) { |
84734a04 MK |
493 | err_printf(m, "%s --- HW Context = 0x%08x\n", |
494 | dev_priv->ring[i].name, | |
e1f12325 | 495 | lower_32_bits(obj->gtt_offset)); |
17d36749 | 496 | print_error_obj(m, obj); |
84734a04 MK |
497 | } |
498 | } | |
499 | ||
0ca36d78 | 500 | if ((obj = error->semaphore_obj)) { |
e1f12325 MT |
501 | err_printf(m, "Semaphore page = 0x%08x\n", |
502 | lower_32_bits(obj->gtt_offset)); | |
0ca36d78 BW |
503 | for (elt = 0; elt < PAGE_SIZE/16; elt += 4) { |
504 | err_printf(m, "[%04x] %08x %08x %08x %08x\n", | |
505 | elt * 4, | |
506 | obj->pages[0][elt], | |
507 | obj->pages[0][elt+1], | |
508 | obj->pages[0][elt+2], | |
509 | obj->pages[0][elt+3]); | |
510 | } | |
511 | } | |
512 | ||
84734a04 MK |
513 | if (error->overlay) |
514 | intel_overlay_print_error_state(m, error->overlay); | |
515 | ||
516 | if (error->display) | |
517 | intel_display_print_error_state(m, dev, error->display); | |
518 | ||
519 | out: | |
520 | if (m->bytes == 0 && m->err) | |
521 | return m->err; | |
522 | ||
523 | return 0; | |
524 | } | |
525 | ||
526 | int i915_error_state_buf_init(struct drm_i915_error_state_buf *ebuf, | |
0a4cd7c8 | 527 | struct drm_i915_private *i915, |
84734a04 MK |
528 | size_t count, loff_t pos) |
529 | { | |
530 | memset(ebuf, 0, sizeof(*ebuf)); | |
0a4cd7c8 | 531 | ebuf->i915 = i915; |
84734a04 MK |
532 | |
533 | /* We need to have enough room to store any i915_error_state printf | |
534 | * so that we can move it to start position. | |
535 | */ | |
536 | ebuf->size = count + 1 > PAGE_SIZE ? count + 1 : PAGE_SIZE; | |
537 | ebuf->buf = kmalloc(ebuf->size, | |
538 | GFP_TEMPORARY | __GFP_NORETRY | __GFP_NOWARN); | |
539 | ||
540 | if (ebuf->buf == NULL) { | |
541 | ebuf->size = PAGE_SIZE; | |
542 | ebuf->buf = kmalloc(ebuf->size, GFP_TEMPORARY); | |
543 | } | |
544 | ||
545 | if (ebuf->buf == NULL) { | |
546 | ebuf->size = 128; | |
547 | ebuf->buf = kmalloc(ebuf->size, GFP_TEMPORARY); | |
548 | } | |
549 | ||
550 | if (ebuf->buf == NULL) | |
551 | return -ENOMEM; | |
552 | ||
553 | ebuf->start = pos; | |
554 | ||
555 | return 0; | |
556 | } | |
557 | ||
558 | static void i915_error_object_free(struct drm_i915_error_object *obj) | |
559 | { | |
560 | int page; | |
561 | ||
562 | if (obj == NULL) | |
563 | return; | |
564 | ||
565 | for (page = 0; page < obj->page_count; page++) | |
566 | kfree(obj->pages[page]); | |
567 | ||
568 | kfree(obj); | |
569 | } | |
570 | ||
571 | static void i915_error_state_free(struct kref *error_ref) | |
572 | { | |
573 | struct drm_i915_error_state *error = container_of(error_ref, | |
574 | typeof(*error), ref); | |
575 | int i; | |
576 | ||
577 | for (i = 0; i < ARRAY_SIZE(error->ring); i++) { | |
578 | i915_error_object_free(error->ring[i].batchbuffer); | |
b3da4a62 | 579 | i915_error_object_free(error->ring[i].wa_batchbuffer); |
84734a04 | 580 | i915_error_object_free(error->ring[i].ringbuffer); |
362b8af7 | 581 | i915_error_object_free(error->ring[i].hws_page); |
84734a04 MK |
582 | i915_error_object_free(error->ring[i].ctx); |
583 | kfree(error->ring[i].requests); | |
584 | } | |
585 | ||
0ca36d78 | 586 | i915_error_object_free(error->semaphore_obj); |
0b37a9a9 MT |
587 | |
588 | for (i = 0; i < error->vm_count; i++) | |
589 | kfree(error->active_bo[i]); | |
590 | ||
84734a04 | 591 | kfree(error->active_bo); |
0b37a9a9 MT |
592 | kfree(error->active_bo_count); |
593 | kfree(error->pinned_bo); | |
594 | kfree(error->pinned_bo_count); | |
84734a04 MK |
595 | kfree(error->overlay); |
596 | kfree(error->display); | |
597 | kfree(error); | |
598 | } | |
599 | ||
600 | static struct drm_i915_error_object * | |
8ae62dc6 CW |
601 | i915_error_object_create(struct drm_i915_private *dev_priv, |
602 | struct drm_i915_gem_object *src, | |
603 | struct i915_address_space *vm) | |
84734a04 MK |
604 | { |
605 | struct drm_i915_error_object *dst; | |
aff43766 | 606 | struct i915_vma *vma = NULL; |
8ae62dc6 | 607 | int num_pages; |
b3c3f5e6 CW |
608 | bool use_ggtt; |
609 | int i = 0; | |
e1f12325 | 610 | u64 reloc_offset; |
84734a04 MK |
611 | |
612 | if (src == NULL || src->pages == NULL) | |
613 | return NULL; | |
614 | ||
8ae62dc6 CW |
615 | num_pages = src->base.size >> PAGE_SHIFT; |
616 | ||
84734a04 MK |
617 | dst = kmalloc(sizeof(*dst) + num_pages * sizeof(u32 *), GFP_ATOMIC); |
618 | if (dst == NULL) | |
619 | return NULL; | |
620 | ||
87a01e82 CW |
621 | if (i915_gem_obj_bound(src, vm)) |
622 | dst->gtt_offset = i915_gem_obj_offset(src, vm); | |
623 | else | |
624 | dst->gtt_offset = -1; | |
b3c3f5e6 CW |
625 | |
626 | reloc_offset = dst->gtt_offset; | |
aff43766 TU |
627 | if (i915_is_ggtt(vm)) |
628 | vma = i915_gem_obj_to_ggtt(src); | |
b3c3f5e6 | 629 | use_ggtt = (src->cache_level == I915_CACHE_NONE && |
aff43766 TU |
630 | vma && (vma->bound & GLOBAL_BIND) && |
631 | reloc_offset + num_pages * PAGE_SIZE <= dev_priv->gtt.mappable_end); | |
b3c3f5e6 CW |
632 | |
633 | /* Cannot access stolen address directly, try to use the aperture */ | |
634 | if (src->stolen) { | |
635 | use_ggtt = true; | |
636 | ||
aff43766 | 637 | if (!(vma && vma->bound & GLOBAL_BIND)) |
b3c3f5e6 CW |
638 | goto unwind; |
639 | ||
640 | reloc_offset = i915_gem_obj_ggtt_offset(src); | |
641 | if (reloc_offset + num_pages * PAGE_SIZE > dev_priv->gtt.mappable_end) | |
642 | goto unwind; | |
643 | } | |
644 | ||
645 | /* Cannot access snooped pages through the aperture */ | |
646 | if (use_ggtt && src->cache_level != I915_CACHE_NONE && !HAS_LLC(dev_priv->dev)) | |
647 | goto unwind; | |
648 | ||
649 | dst->page_count = num_pages; | |
650 | while (num_pages--) { | |
84734a04 MK |
651 | unsigned long flags; |
652 | void *d; | |
653 | ||
654 | d = kmalloc(PAGE_SIZE, GFP_ATOMIC); | |
655 | if (d == NULL) | |
656 | goto unwind; | |
657 | ||
658 | local_irq_save(flags); | |
b3c3f5e6 | 659 | if (use_ggtt) { |
84734a04 MK |
660 | void __iomem *s; |
661 | ||
662 | /* Simply ignore tiling or any overlapping fence. | |
663 | * It's part of the error state, and this hopefully | |
664 | * captures what the GPU read. | |
665 | */ | |
666 | ||
667 | s = io_mapping_map_atomic_wc(dev_priv->gtt.mappable, | |
668 | reloc_offset); | |
669 | memcpy_fromio(d, s, PAGE_SIZE); | |
670 | io_mapping_unmap_atomic(s); | |
84734a04 MK |
671 | } else { |
672 | struct page *page; | |
673 | void *s; | |
674 | ||
675 | page = i915_gem_object_get_page(src, i); | |
676 | ||
677 | drm_clflush_pages(&page, 1); | |
678 | ||
679 | s = kmap_atomic(page); | |
680 | memcpy(d, s, PAGE_SIZE); | |
681 | kunmap_atomic(s); | |
682 | ||
683 | drm_clflush_pages(&page, 1); | |
684 | } | |
685 | local_irq_restore(flags); | |
686 | ||
b3c3f5e6 | 687 | dst->pages[i++] = d; |
84734a04 MK |
688 | reloc_offset += PAGE_SIZE; |
689 | } | |
84734a04 MK |
690 | |
691 | return dst; | |
692 | ||
693 | unwind: | |
694 | while (i--) | |
695 | kfree(dst->pages[i]); | |
696 | kfree(dst); | |
697 | return NULL; | |
698 | } | |
a7b91078 | 699 | #define i915_error_ggtt_object_create(dev_priv, src) \ |
8ae62dc6 | 700 | i915_error_object_create((dev_priv), (src), &(dev_priv)->gtt.base) |
84734a04 MK |
701 | |
702 | static void capture_bo(struct drm_i915_error_buffer *err, | |
3a448734 | 703 | struct i915_vma *vma) |
84734a04 | 704 | { |
3a448734 | 705 | struct drm_i915_gem_object *obj = vma->obj; |
b4716185 | 706 | int i; |
3a448734 | 707 | |
84734a04 MK |
708 | err->size = obj->base.size; |
709 | err->name = obj->base.name; | |
b4716185 CW |
710 | for (i = 0; i < I915_NUM_RINGS; i++) |
711 | err->rseqno[i] = i915_gem_request_get_seqno(obj->last_read_req[i]); | |
97b2a6a1 | 712 | err->wseqno = i915_gem_request_get_seqno(obj->last_write_req); |
3a448734 | 713 | err->gtt_offset = vma->node.start; |
84734a04 MK |
714 | err->read_domains = obj->base.read_domains; |
715 | err->write_domain = obj->base.write_domain; | |
716 | err->fence_reg = obj->fence_reg; | |
717 | err->pinned = 0; | |
d7f46fc4 | 718 | if (i915_gem_obj_is_pinned(obj)) |
84734a04 | 719 | err->pinned = 1; |
84734a04 MK |
720 | err->tiling = obj->tiling_mode; |
721 | err->dirty = obj->dirty; | |
722 | err->purgeable = obj->madv != I915_MADV_WILLNEED; | |
5cc9ed4b | 723 | err->userptr = obj->userptr.mm != NULL; |
b4716185 CW |
724 | err->ring = obj->last_write_req ? |
725 | i915_gem_request_get_ring(obj->last_write_req)->id : -1; | |
84734a04 MK |
726 | err->cache_level = obj->cache_level; |
727 | } | |
728 | ||
729 | static u32 capture_active_bo(struct drm_i915_error_buffer *err, | |
730 | int count, struct list_head *head) | |
731 | { | |
ca191b13 | 732 | struct i915_vma *vma; |
84734a04 MK |
733 | int i = 0; |
734 | ||
ca191b13 | 735 | list_for_each_entry(vma, head, mm_list) { |
3a448734 | 736 | capture_bo(err++, vma); |
84734a04 MK |
737 | if (++i == count) |
738 | break; | |
739 | } | |
740 | ||
741 | return i; | |
742 | } | |
743 | ||
744 | static u32 capture_pinned_bo(struct drm_i915_error_buffer *err, | |
3a448734 CW |
745 | int count, struct list_head *head, |
746 | struct i915_address_space *vm) | |
84734a04 MK |
747 | { |
748 | struct drm_i915_gem_object *obj; | |
3a448734 CW |
749 | struct drm_i915_error_buffer * const first = err; |
750 | struct drm_i915_error_buffer * const last = err + count; | |
84734a04 MK |
751 | |
752 | list_for_each_entry(obj, head, global_list) { | |
3a448734 | 753 | struct i915_vma *vma; |
84734a04 | 754 | |
3a448734 | 755 | if (err == last) |
84734a04 | 756 | break; |
3a448734 CW |
757 | |
758 | list_for_each_entry(vma, &obj->vma_list, vma_link) | |
fe14d5f4 | 759 | if (vma->vm == vm && vma->pin_count > 0) |
3a448734 | 760 | capture_bo(err++, vma); |
84734a04 MK |
761 | } |
762 | ||
3a448734 | 763 | return err - first; |
84734a04 MK |
764 | } |
765 | ||
011cf577 BW |
766 | /* Generate a semi-unique error code. The code is not meant to have meaning, The |
767 | * code's only purpose is to try to prevent false duplicated bug reports by | |
768 | * grossly estimating a GPU error state. | |
769 | * | |
770 | * TODO Ideally, hashing the batchbuffer would be a very nice way to determine | |
771 | * the hang if we could strip the GTT offset information from it. | |
772 | * | |
773 | * It's only a small step better than a random number in its current form. | |
774 | */ | |
775 | static uint32_t i915_error_generate_code(struct drm_i915_private *dev_priv, | |
cb383002 MK |
776 | struct drm_i915_error_state *error, |
777 | int *ring_id) | |
011cf577 BW |
778 | { |
779 | uint32_t error_code = 0; | |
780 | int i; | |
781 | ||
782 | /* IPEHR would be an ideal way to detect errors, as it's the gross | |
783 | * measure of "the command that hung." However, has some very common | |
784 | * synchronization commands which almost always appear in the case | |
785 | * strictly a client bug. Use instdone to differentiate those some. | |
786 | */ | |
cb383002 MK |
787 | for (i = 0; i < I915_NUM_RINGS; i++) { |
788 | if (error->ring[i].hangcheck_action == HANGCHECK_HUNG) { | |
789 | if (ring_id) | |
790 | *ring_id = i; | |
791 | ||
011cf577 | 792 | return error->ring[i].ipehr ^ error->ring[i].instdone; |
cb383002 MK |
793 | } |
794 | } | |
011cf577 BW |
795 | |
796 | return error_code; | |
797 | } | |
798 | ||
84734a04 MK |
799 | static void i915_gem_record_fences(struct drm_device *dev, |
800 | struct drm_i915_error_state *error) | |
801 | { | |
802 | struct drm_i915_private *dev_priv = dev->dev_private; | |
803 | int i; | |
804 | ||
ce38ab05 | 805 | if (IS_GEN3(dev) || IS_GEN2(dev)) { |
ce38ab05 | 806 | for (i = 0; i < dev_priv->num_fence_regs; i++) |
eecf613a VS |
807 | error->fence[i] = I915_READ(FENCE_REG(i)); |
808 | } else if (IS_GEN5(dev) || IS_GEN4(dev)) { | |
809 | for (i = 0; i < dev_priv->num_fence_regs; i++) | |
810 | error->fence[i] = I915_READ64(FENCE_REG_965_LO(i)); | |
811 | } else if (INTEL_INFO(dev)->gen >= 6) { | |
812 | for (i = 0; i < dev_priv->num_fence_regs; i++) | |
813 | error->fence[i] = I915_READ64(FENCE_REG_GEN6_LO(i)); | |
814 | } | |
84734a04 MK |
815 | } |
816 | ||
87f85ebc | 817 | |
0ca36d78 BW |
818 | static void gen8_record_semaphore_state(struct drm_i915_private *dev_priv, |
819 | struct drm_i915_error_state *error, | |
820 | struct intel_engine_cs *ring, | |
821 | struct drm_i915_error_ring *ering) | |
822 | { | |
b4558b46 | 823 | struct intel_engine_cs *to; |
0ca36d78 BW |
824 | int i; |
825 | ||
826 | if (!i915_semaphore_is_enabled(dev_priv->dev)) | |
827 | return; | |
828 | ||
829 | if (!error->semaphore_obj) | |
830 | error->semaphore_obj = | |
cc1df8a3 DV |
831 | i915_error_ggtt_object_create(dev_priv, |
832 | dev_priv->semaphore_obj); | |
0ca36d78 | 833 | |
b4558b46 RV |
834 | for_each_ring(to, dev_priv, i) { |
835 | int idx; | |
836 | u16 signal_offset; | |
837 | u32 *tmp; | |
0ca36d78 | 838 | |
b4558b46 RV |
839 | if (ring == to) |
840 | continue; | |
841 | ||
864c6181 RV |
842 | signal_offset = (GEN8_SIGNAL_OFFSET(ring, i) & (PAGE_SIZE - 1)) |
843 | / 4; | |
b4558b46 RV |
844 | tmp = error->semaphore_obj->pages[0]; |
845 | idx = intel_ring_sync_index(ring, to); | |
846 | ||
847 | ering->semaphore_mboxes[idx] = tmp[signal_offset]; | |
848 | ering->semaphore_seqno[idx] = ring->semaphore.sync_seqno[idx]; | |
0ca36d78 BW |
849 | } |
850 | } | |
851 | ||
87f85ebc BW |
852 | static void gen6_record_semaphore_state(struct drm_i915_private *dev_priv, |
853 | struct intel_engine_cs *ring, | |
854 | struct drm_i915_error_ring *ering) | |
855 | { | |
856 | ering->semaphore_mboxes[0] = I915_READ(RING_SYNC_0(ring->mmio_base)); | |
857 | ering->semaphore_mboxes[1] = I915_READ(RING_SYNC_1(ring->mmio_base)); | |
858 | ering->semaphore_seqno[0] = ring->semaphore.sync_seqno[0]; | |
859 | ering->semaphore_seqno[1] = ring->semaphore.sync_seqno[1]; | |
860 | ||
861 | if (HAS_VEBOX(dev_priv->dev)) { | |
862 | ering->semaphore_mboxes[2] = | |
863 | I915_READ(RING_SYNC_2(ring->mmio_base)); | |
864 | ering->semaphore_seqno[2] = ring->semaphore.sync_seqno[2]; | |
865 | } | |
866 | } | |
867 | ||
84734a04 | 868 | static void i915_record_ring_state(struct drm_device *dev, |
0ca36d78 | 869 | struct drm_i915_error_state *error, |
a4872ba6 | 870 | struct intel_engine_cs *ring, |
362b8af7 | 871 | struct drm_i915_error_ring *ering) |
84734a04 MK |
872 | { |
873 | struct drm_i915_private *dev_priv = dev->dev_private; | |
874 | ||
875 | if (INTEL_INFO(dev)->gen >= 6) { | |
3613cf1d | 876 | ering->rc_psmi = I915_READ(RING_PSMI_CTL(ring->mmio_base)); |
362b8af7 | 877 | ering->fault_reg = I915_READ(RING_FAULT_REG(ring)); |
0ca36d78 BW |
878 | if (INTEL_INFO(dev)->gen >= 8) |
879 | gen8_record_semaphore_state(dev_priv, error, ring, ering); | |
880 | else | |
881 | gen6_record_semaphore_state(dev_priv, ring, ering); | |
4e5aabfd BW |
882 | } |
883 | ||
84734a04 | 884 | if (INTEL_INFO(dev)->gen >= 4) { |
362b8af7 BW |
885 | ering->faddr = I915_READ(RING_DMA_FADD(ring->mmio_base)); |
886 | ering->ipeir = I915_READ(RING_IPEIR(ring->mmio_base)); | |
887 | ering->ipehr = I915_READ(RING_IPEHR(ring->mmio_base)); | |
888 | ering->instdone = I915_READ(RING_INSTDONE(ring->mmio_base)); | |
889 | ering->instps = I915_READ(RING_INSTPS(ring->mmio_base)); | |
890 | ering->bbaddr = I915_READ(RING_BBADDR(ring->mmio_base)); | |
13ffadd1 BW |
891 | if (INTEL_INFO(dev)->gen >= 8) { |
892 | ering->faddr |= (u64) I915_READ(RING_DMA_FADD_UDW(ring->mmio_base)) << 32; | |
362b8af7 | 893 | ering->bbaddr |= (u64) I915_READ(RING_BBADDR_UDW(ring->mmio_base)) << 32; |
13ffadd1 | 894 | } |
362b8af7 | 895 | ering->bbstate = I915_READ(RING_BBSTATE(ring->mmio_base)); |
84734a04 | 896 | } else { |
362b8af7 BW |
897 | ering->faddr = I915_READ(DMA_FADD_I8XX); |
898 | ering->ipeir = I915_READ(IPEIR); | |
899 | ering->ipehr = I915_READ(IPEHR); | |
bd93a50e | 900 | ering->instdone = I915_READ(GEN2_INSTDONE); |
84734a04 MK |
901 | } |
902 | ||
362b8af7 BW |
903 | ering->waiting = waitqueue_active(&ring->irq_queue); |
904 | ering->instpm = I915_READ(RING_INSTPM(ring->mmio_base)); | |
905 | ering->seqno = ring->get_seqno(ring, false); | |
906 | ering->acthd = intel_ring_get_active_head(ring); | |
94f8cf10 | 907 | ering->start = I915_READ_START(ring); |
362b8af7 BW |
908 | ering->head = I915_READ_HEAD(ring); |
909 | ering->tail = I915_READ_TAIL(ring); | |
910 | ering->ctl = I915_READ_CTL(ring); | |
84734a04 | 911 | |
f3ce3821 | 912 | if (I915_NEED_GFX_HWS(dev)) { |
f0f59a00 | 913 | i915_reg_t mmio; |
f3ce3821 CW |
914 | |
915 | if (IS_GEN7(dev)) { | |
916 | switch (ring->id) { | |
917 | default: | |
918 | case RCS: | |
919 | mmio = RENDER_HWS_PGA_GEN7; | |
920 | break; | |
921 | case BCS: | |
922 | mmio = BLT_HWS_PGA_GEN7; | |
923 | break; | |
924 | case VCS: | |
925 | mmio = BSD_HWS_PGA_GEN7; | |
926 | break; | |
927 | case VECS: | |
928 | mmio = VEBOX_HWS_PGA_GEN7; | |
929 | break; | |
930 | } | |
931 | } else if (IS_GEN6(ring->dev)) { | |
932 | mmio = RING_HWS_PGA_GEN6(ring->mmio_base); | |
933 | } else { | |
934 | /* XXX: gen8 returns to sanity */ | |
935 | mmio = RING_HWS_PGA(ring->mmio_base); | |
936 | } | |
937 | ||
362b8af7 | 938 | ering->hws = I915_READ(mmio); |
f3ce3821 CW |
939 | } |
940 | ||
362b8af7 BW |
941 | ering->hangcheck_score = ring->hangcheck.score; |
942 | ering->hangcheck_action = ring->hangcheck.action; | |
6c7a01ec BW |
943 | |
944 | if (USES_PPGTT(dev)) { | |
945 | int i; | |
946 | ||
947 | ering->vm_info.gfx_mode = I915_READ(RING_MODE_GEN7(ring)); | |
948 | ||
74745b09 RV |
949 | if (IS_GEN6(dev)) |
950 | ering->vm_info.pp_dir_base = | |
951 | I915_READ(RING_PP_DIR_BASE_READ(ring)); | |
952 | else if (IS_GEN7(dev)) | |
953 | ering->vm_info.pp_dir_base = | |
954 | I915_READ(RING_PP_DIR_BASE(ring)); | |
955 | else if (INTEL_INFO(dev)->gen >= 8) | |
6c7a01ec BW |
956 | for (i = 0; i < 4; i++) { |
957 | ering->vm_info.pdp[i] = | |
958 | I915_READ(GEN8_RING_PDP_UDW(ring, i)); | |
959 | ering->vm_info.pdp[i] <<= 32; | |
960 | ering->vm_info.pdp[i] |= | |
961 | I915_READ(GEN8_RING_PDP_LDW(ring, i)); | |
962 | } | |
6c7a01ec | 963 | } |
84734a04 MK |
964 | } |
965 | ||
966 | ||
a4872ba6 | 967 | static void i915_gem_record_active_context(struct intel_engine_cs *ring, |
84734a04 MK |
968 | struct drm_i915_error_state *error, |
969 | struct drm_i915_error_ring *ering) | |
970 | { | |
971 | struct drm_i915_private *dev_priv = ring->dev->dev_private; | |
972 | struct drm_i915_gem_object *obj; | |
973 | ||
974 | /* Currently render ring is the only HW context user */ | |
975 | if (ring->id != RCS || !error->ccid) | |
976 | return; | |
977 | ||
978 | list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) { | |
36362ad3 BW |
979 | if (!i915_gem_obj_ggtt_bound(obj)) |
980 | continue; | |
981 | ||
84734a04 | 982 | if ((error->ccid & PAGE_MASK) == i915_gem_obj_ggtt_offset(obj)) { |
17d36749 | 983 | ering->ctx = i915_error_ggtt_object_create(dev_priv, obj); |
84734a04 MK |
984 | break; |
985 | } | |
986 | } | |
987 | } | |
988 | ||
989 | static void i915_gem_record_rings(struct drm_device *dev, | |
990 | struct drm_i915_error_state *error) | |
991 | { | |
992 | struct drm_i915_private *dev_priv = dev->dev_private; | |
84734a04 MK |
993 | struct drm_i915_gem_request *request; |
994 | int i, count; | |
995 | ||
372fbb8e | 996 | for (i = 0; i < I915_NUM_RINGS; i++) { |
a4872ba6 | 997 | struct intel_engine_cs *ring = &dev_priv->ring[i]; |
9075e52f | 998 | struct intel_ringbuffer *rbuf; |
372fbb8e | 999 | |
eee73b46 CW |
1000 | error->ring[i].pid = -1; |
1001 | ||
372fbb8e CW |
1002 | if (ring->dev == NULL) |
1003 | continue; | |
1004 | ||
1005 | error->ring[i].valid = true; | |
1006 | ||
0ca36d78 | 1007 | i915_record_ring_state(dev, error, ring, &error->ring[i]); |
84734a04 | 1008 | |
ab0e7ff9 CW |
1009 | request = i915_gem_find_active_request(ring); |
1010 | if (request) { | |
ae6c4806 DV |
1011 | struct i915_address_space *vm; |
1012 | ||
1013 | vm = request->ctx && request->ctx->ppgtt ? | |
1014 | &request->ctx->ppgtt->base : | |
1015 | &dev_priv->gtt.base; | |
1016 | ||
ab0e7ff9 CW |
1017 | /* We need to copy these to an anonymous buffer |
1018 | * as the simplest method to avoid being overwritten | |
1019 | * by userspace. | |
1020 | */ | |
1021 | error->ring[i].batchbuffer = | |
1022 | i915_error_object_create(dev_priv, | |
1023 | request->batch_obj, | |
ae6c4806 | 1024 | vm); |
ab0e7ff9 | 1025 | |
8ae62dc6 | 1026 | if (HAS_BROKEN_CS_TLB(dev_priv->dev)) |
ab0e7ff9 CW |
1027 | error->ring[i].wa_batchbuffer = |
1028 | i915_error_ggtt_object_create(dev_priv, | |
1029 | ring->scratch.obj); | |
1030 | ||
071c92de | 1031 | if (request->pid) { |
ab0e7ff9 CW |
1032 | struct task_struct *task; |
1033 | ||
1034 | rcu_read_lock(); | |
071c92de | 1035 | task = pid_task(request->pid, PIDTYPE_PID); |
ab0e7ff9 CW |
1036 | if (task) { |
1037 | strcpy(error->ring[i].comm, task->comm); | |
1038 | error->ring[i].pid = task->pid; | |
1039 | } | |
1040 | rcu_read_unlock(); | |
1041 | } | |
1042 | } | |
84734a04 | 1043 | |
9075e52f OM |
1044 | if (i915.enable_execlists) { |
1045 | /* TODO: This is only a small fix to keep basic error | |
1046 | * capture working, but we need to add more information | |
1047 | * for it to be useful (e.g. dump the context being | |
1048 | * executed). | |
1049 | */ | |
1050 | if (request) | |
1051 | rbuf = request->ctx->engine[ring->id].ringbuf; | |
1052 | else | |
1053 | rbuf = ring->default_context->engine[ring->id].ringbuf; | |
1054 | } else | |
1055 | rbuf = ring->buffer; | |
1056 | ||
1057 | error->ring[i].cpu_ring_head = rbuf->head; | |
1058 | error->ring[i].cpu_ring_tail = rbuf->tail; | |
1059 | ||
84734a04 | 1060 | error->ring[i].ringbuffer = |
9075e52f | 1061 | i915_error_ggtt_object_create(dev_priv, rbuf->obj); |
84734a04 | 1062 | |
8ae62dc6 CW |
1063 | error->ring[i].hws_page = |
1064 | i915_error_ggtt_object_create(dev_priv, ring->status_page.obj); | |
84734a04 MK |
1065 | |
1066 | i915_gem_record_active_context(ring, error, &error->ring[i]); | |
1067 | ||
1068 | count = 0; | |
1069 | list_for_each_entry(request, &ring->request_list, list) | |
1070 | count++; | |
1071 | ||
1072 | error->ring[i].num_requests = count; | |
1073 | error->ring[i].requests = | |
a1e22653 | 1074 | kcalloc(count, sizeof(*error->ring[i].requests), |
84734a04 MK |
1075 | GFP_ATOMIC); |
1076 | if (error->ring[i].requests == NULL) { | |
1077 | error->ring[i].num_requests = 0; | |
1078 | continue; | |
1079 | } | |
1080 | ||
1081 | count = 0; | |
1082 | list_for_each_entry(request, &ring->request_list, list) { | |
1083 | struct drm_i915_error_request *erq; | |
1084 | ||
9c8e1bdb TE |
1085 | if (count >= error->ring[i].num_requests) { |
1086 | /* | |
1087 | * If the ring request list was changed in | |
1088 | * between the point where the error request | |
1089 | * list was created and dimensioned and this | |
1090 | * point then just exit early to avoid crashes. | |
1091 | * | |
1092 | * We don't need to communicate that the | |
1093 | * request list changed state during error | |
1094 | * state capture and that the error state is | |
1095 | * slightly incorrect as a consequence since we | |
1096 | * are typically only interested in the request | |
1097 | * list state at the point of error state | |
1098 | * capture, not in any changes happening during | |
1099 | * the capture. | |
1100 | */ | |
1101 | break; | |
1102 | } | |
1103 | ||
84734a04 MK |
1104 | erq = &error->ring[i].requests[count++]; |
1105 | erq->seqno = request->seqno; | |
1106 | erq->jiffies = request->emitted_jiffies; | |
72f95afa | 1107 | erq->tail = request->postfix; |
84734a04 MK |
1108 | } |
1109 | } | |
1110 | } | |
1111 | ||
95f5301d BW |
1112 | /* FIXME: Since pin count/bound list is global, we duplicate what we capture per |
1113 | * VM. | |
1114 | */ | |
1115 | static void i915_gem_capture_vm(struct drm_i915_private *dev_priv, | |
1116 | struct drm_i915_error_state *error, | |
1117 | struct i915_address_space *vm, | |
1118 | const int ndx) | |
84734a04 | 1119 | { |
95f5301d | 1120 | struct drm_i915_error_buffer *active_bo = NULL, *pinned_bo = NULL; |
84734a04 | 1121 | struct drm_i915_gem_object *obj; |
95f5301d | 1122 | struct i915_vma *vma; |
84734a04 MK |
1123 | int i; |
1124 | ||
1125 | i = 0; | |
ca191b13 | 1126 | list_for_each_entry(vma, &vm->active_list, mm_list) |
84734a04 | 1127 | i++; |
95f5301d | 1128 | error->active_bo_count[ndx] = i; |
3a448734 CW |
1129 | |
1130 | list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) { | |
1131 | list_for_each_entry(vma, &obj->vma_list, vma_link) | |
fe14d5f4 | 1132 | if (vma->vm == vm && vma->pin_count > 0) |
3a448734 | 1133 | i++; |
3a448734 | 1134 | } |
95f5301d | 1135 | error->pinned_bo_count[ndx] = i - error->active_bo_count[ndx]; |
84734a04 MK |
1136 | |
1137 | if (i) { | |
a1e22653 | 1138 | active_bo = kcalloc(i, sizeof(*active_bo), GFP_ATOMIC); |
95f5301d BW |
1139 | if (active_bo) |
1140 | pinned_bo = active_bo + error->active_bo_count[ndx]; | |
84734a04 MK |
1141 | } |
1142 | ||
95f5301d BW |
1143 | if (active_bo) |
1144 | error->active_bo_count[ndx] = | |
1145 | capture_active_bo(active_bo, | |
1146 | error->active_bo_count[ndx], | |
5cef07e1 | 1147 | &vm->active_list); |
84734a04 | 1148 | |
95f5301d BW |
1149 | if (pinned_bo) |
1150 | error->pinned_bo_count[ndx] = | |
1151 | capture_pinned_bo(pinned_bo, | |
1152 | error->pinned_bo_count[ndx], | |
3a448734 | 1153 | &dev_priv->mm.bound_list, vm); |
95f5301d BW |
1154 | error->active_bo[ndx] = active_bo; |
1155 | error->pinned_bo[ndx] = pinned_bo; | |
1156 | } | |
1157 | ||
1158 | static void i915_gem_capture_buffers(struct drm_i915_private *dev_priv, | |
1159 | struct drm_i915_error_state *error) | |
1160 | { | |
1161 | struct i915_address_space *vm; | |
1162 | int cnt = 0, i = 0; | |
1163 | ||
1164 | list_for_each_entry(vm, &dev_priv->vm_list, global_link) | |
1165 | cnt++; | |
1166 | ||
95f5301d BW |
1167 | error->active_bo = kcalloc(cnt, sizeof(*error->active_bo), GFP_ATOMIC); |
1168 | error->pinned_bo = kcalloc(cnt, sizeof(*error->pinned_bo), GFP_ATOMIC); | |
1169 | error->active_bo_count = kcalloc(cnt, sizeof(*error->active_bo_count), | |
1170 | GFP_ATOMIC); | |
1171 | error->pinned_bo_count = kcalloc(cnt, sizeof(*error->pinned_bo_count), | |
1172 | GFP_ATOMIC); | |
1173 | ||
3a448734 CW |
1174 | if (error->active_bo == NULL || |
1175 | error->pinned_bo == NULL || | |
1176 | error->active_bo_count == NULL || | |
1177 | error->pinned_bo_count == NULL) { | |
1178 | kfree(error->active_bo); | |
1179 | kfree(error->active_bo_count); | |
1180 | kfree(error->pinned_bo); | |
1181 | kfree(error->pinned_bo_count); | |
1182 | ||
1183 | error->active_bo = NULL; | |
1184 | error->active_bo_count = NULL; | |
1185 | error->pinned_bo = NULL; | |
1186 | error->pinned_bo_count = NULL; | |
1187 | } else { | |
1188 | list_for_each_entry(vm, &dev_priv->vm_list, global_link) | |
1189 | i915_gem_capture_vm(dev_priv, error, vm, i++); | |
1190 | ||
1191 | error->vm_count = cnt; | |
1192 | } | |
84734a04 MK |
1193 | } |
1194 | ||
1d762aad BW |
1195 | /* Capture all registers which don't fit into another category. */ |
1196 | static void i915_capture_reg_state(struct drm_i915_private *dev_priv, | |
1197 | struct drm_i915_error_state *error) | |
84734a04 | 1198 | { |
1d762aad | 1199 | struct drm_device *dev = dev_priv->dev; |
885ea5a8 | 1200 | int i; |
84734a04 | 1201 | |
654c90c6 BW |
1202 | /* General organization |
1203 | * 1. Registers specific to a single generation | |
1204 | * 2. Registers which belong to multiple generations | |
1205 | * 3. Feature specific registers. | |
1206 | * 4. Everything else | |
1207 | * Please try to follow the order. | |
1208 | */ | |
84734a04 | 1209 | |
654c90c6 BW |
1210 | /* 1: Registers specific to a single generation */ |
1211 | if (IS_VALLEYVIEW(dev)) { | |
885ea5a8 | 1212 | error->gtier[0] = I915_READ(GTIER); |
843db716 | 1213 | error->ier = I915_READ(VLV_IER); |
40181697 | 1214 | error->forcewake = I915_READ_FW(FORCEWAKE_VLV); |
654c90c6 | 1215 | } |
84734a04 | 1216 | |
654c90c6 BW |
1217 | if (IS_GEN7(dev)) |
1218 | error->err_int = I915_READ(GEN7_ERR_INT); | |
84734a04 | 1219 | |
6c826f34 MK |
1220 | if (INTEL_INFO(dev)->gen >= 8) { |
1221 | error->fault_data0 = I915_READ(GEN8_FAULT_TLB_DATA0); | |
1222 | error->fault_data1 = I915_READ(GEN8_FAULT_TLB_DATA1); | |
1223 | } | |
1224 | ||
91ec5d11 | 1225 | if (IS_GEN6(dev)) { |
40181697 | 1226 | error->forcewake = I915_READ_FW(FORCEWAKE); |
91ec5d11 BW |
1227 | error->gab_ctl = I915_READ(GAB_CTL); |
1228 | error->gfx_mode = I915_READ(GFX_MODE); | |
1229 | } | |
84734a04 | 1230 | |
654c90c6 BW |
1231 | /* 2: Registers which belong to multiple generations */ |
1232 | if (INTEL_INFO(dev)->gen >= 7) | |
40181697 | 1233 | error->forcewake = I915_READ_FW(FORCEWAKE_MT); |
84734a04 MK |
1234 | |
1235 | if (INTEL_INFO(dev)->gen >= 6) { | |
654c90c6 | 1236 | error->derrmr = I915_READ(DERRMR); |
84734a04 MK |
1237 | error->error = I915_READ(ERROR_GEN6); |
1238 | error->done_reg = I915_READ(DONE_REG); | |
1239 | } | |
1240 | ||
654c90c6 | 1241 | /* 3: Feature specific registers */ |
91ec5d11 BW |
1242 | if (IS_GEN6(dev) || IS_GEN7(dev)) { |
1243 | error->gam_ecochk = I915_READ(GAM_ECOCHK); | |
1244 | error->gac_eco = I915_READ(GAC_ECO_BITS); | |
1245 | } | |
1246 | ||
1247 | /* 4: Everything else */ | |
654c90c6 BW |
1248 | if (HAS_HW_CONTEXTS(dev)) |
1249 | error->ccid = I915_READ(CCID); | |
1250 | ||
885ea5a8 RV |
1251 | if (INTEL_INFO(dev)->gen >= 8) { |
1252 | error->ier = I915_READ(GEN8_DE_MISC_IER); | |
1253 | for (i = 0; i < 4; i++) | |
1254 | error->gtier[i] = I915_READ(GEN8_GT_IER(i)); | |
1255 | } else if (HAS_PCH_SPLIT(dev)) { | |
843db716 | 1256 | error->ier = I915_READ(DEIER); |
885ea5a8 | 1257 | error->gtier[0] = I915_READ(GTIER); |
843db716 RV |
1258 | } else if (IS_GEN2(dev)) { |
1259 | error->ier = I915_READ16(IER); | |
1260 | } else if (!IS_VALLEYVIEW(dev)) { | |
1261 | error->ier = I915_READ(IER); | |
654c90c6 | 1262 | } |
654c90c6 BW |
1263 | error->eir = I915_READ(EIR); |
1264 | error->pgtbl_er = I915_READ(PGTBL_ER); | |
84734a04 MK |
1265 | |
1266 | i915_get_extra_instdone(dev, error->extra_instdone); | |
1d762aad BW |
1267 | } |
1268 | ||
cb383002 | 1269 | static void i915_error_capture_msg(struct drm_device *dev, |
58174462 MK |
1270 | struct drm_i915_error_state *error, |
1271 | bool wedged, | |
1272 | const char *error_msg) | |
cb383002 MK |
1273 | { |
1274 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1275 | u32 ecode; | |
58174462 | 1276 | int ring_id = -1, len; |
cb383002 MK |
1277 | |
1278 | ecode = i915_error_generate_code(dev_priv, error, &ring_id); | |
1279 | ||
58174462 | 1280 | len = scnprintf(error->error_msg, sizeof(error->error_msg), |
0b5492d6 MK |
1281 | "GPU HANG: ecode %d:%d:0x%08x", |
1282 | INTEL_INFO(dev)->gen, ring_id, ecode); | |
58174462 MK |
1283 | |
1284 | if (ring_id != -1 && error->ring[ring_id].pid != -1) | |
1285 | len += scnprintf(error->error_msg + len, | |
1286 | sizeof(error->error_msg) - len, | |
1287 | ", in %s [%d]", | |
1288 | error->ring[ring_id].comm, | |
1289 | error->ring[ring_id].pid); | |
1290 | ||
1291 | scnprintf(error->error_msg + len, sizeof(error->error_msg) - len, | |
1292 | ", reason: %s, action: %s", | |
1293 | error_msg, | |
1294 | wedged ? "reset" : "continue"); | |
cb383002 MK |
1295 | } |
1296 | ||
48b031e3 MK |
1297 | static void i915_capture_gen_state(struct drm_i915_private *dev_priv, |
1298 | struct drm_i915_error_state *error) | |
1299 | { | |
eb5be9d0 CW |
1300 | error->iommu = -1; |
1301 | #ifdef CONFIG_INTEL_IOMMU | |
1302 | error->iommu = intel_iommu_gfx_mapped; | |
1303 | #endif | |
48b031e3 | 1304 | error->reset_count = i915_reset_count(&dev_priv->gpu_error); |
62d5d69b | 1305 | error->suspend_count = dev_priv->suspend_count; |
48b031e3 MK |
1306 | } |
1307 | ||
1d762aad BW |
1308 | /** |
1309 | * i915_capture_error_state - capture an error record for later analysis | |
1310 | * @dev: drm device | |
1311 | * | |
1312 | * Should be called when an error is detected (either a hang or an error | |
1313 | * interrupt) to capture error state from the time of the error. Fills | |
1314 | * out a structure which becomes available in debugfs for user level tools | |
1315 | * to pick up. | |
1316 | */ | |
58174462 MK |
1317 | void i915_capture_error_state(struct drm_device *dev, bool wedged, |
1318 | const char *error_msg) | |
1d762aad | 1319 | { |
53a4c6b2 | 1320 | static bool warned; |
1d762aad BW |
1321 | struct drm_i915_private *dev_priv = dev->dev_private; |
1322 | struct drm_i915_error_state *error; | |
1323 | unsigned long flags; | |
1d762aad BW |
1324 | |
1325 | /* Account for pipe specific data like PIPE*STAT */ | |
1326 | error = kzalloc(sizeof(*error), GFP_ATOMIC); | |
1327 | if (!error) { | |
1328 | DRM_DEBUG_DRIVER("out of memory, not capturing error state\n"); | |
1329 | return; | |
1330 | } | |
1331 | ||
011cf577 BW |
1332 | kref_init(&error->ref); |
1333 | ||
48b031e3 | 1334 | i915_capture_gen_state(dev_priv, error); |
011cf577 BW |
1335 | i915_capture_reg_state(dev_priv, error); |
1336 | i915_gem_capture_buffers(dev_priv, error); | |
1337 | i915_gem_record_fences(dev, error); | |
1338 | i915_gem_record_rings(dev, error); | |
1d762aad | 1339 | |
84734a04 MK |
1340 | do_gettimeofday(&error->time); |
1341 | ||
1342 | error->overlay = intel_overlay_capture_error_state(dev); | |
1343 | error->display = intel_display_capture_error_state(dev); | |
1344 | ||
58174462 | 1345 | i915_error_capture_msg(dev, error, wedged, error_msg); |
cb383002 MK |
1346 | DRM_INFO("%s\n", error->error_msg); |
1347 | ||
84734a04 MK |
1348 | spin_lock_irqsave(&dev_priv->gpu_error.lock, flags); |
1349 | if (dev_priv->gpu_error.first_error == NULL) { | |
1350 | dev_priv->gpu_error.first_error = error; | |
1351 | error = NULL; | |
1352 | } | |
1353 | spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags); | |
1354 | ||
cb383002 | 1355 | if (error) { |
84734a04 | 1356 | i915_error_state_free(&error->ref); |
cb383002 MK |
1357 | return; |
1358 | } | |
1359 | ||
1360 | if (!warned) { | |
1361 | DRM_INFO("GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.\n"); | |
1362 | DRM_INFO("Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel\n"); | |
1363 | DRM_INFO("drm/i915 developers can then reassign to the right component if it's not a kernel issue.\n"); | |
1364 | DRM_INFO("The gpu crash dump is required to analyze gpu hangs, so please always attach it.\n"); | |
1365 | DRM_INFO("GPU crash dump saved to /sys/class/drm/card%d/error\n", dev->primary->index); | |
1366 | warned = true; | |
1367 | } | |
84734a04 MK |
1368 | } |
1369 | ||
1370 | void i915_error_state_get(struct drm_device *dev, | |
1371 | struct i915_error_state_file_priv *error_priv) | |
1372 | { | |
1373 | struct drm_i915_private *dev_priv = dev->dev_private; | |
84734a04 | 1374 | |
5b254c59 | 1375 | spin_lock_irq(&dev_priv->gpu_error.lock); |
84734a04 MK |
1376 | error_priv->error = dev_priv->gpu_error.first_error; |
1377 | if (error_priv->error) | |
1378 | kref_get(&error_priv->error->ref); | |
5b254c59 | 1379 | spin_unlock_irq(&dev_priv->gpu_error.lock); |
84734a04 MK |
1380 | |
1381 | } | |
1382 | ||
1383 | void i915_error_state_put(struct i915_error_state_file_priv *error_priv) | |
1384 | { | |
1385 | if (error_priv->error) | |
1386 | kref_put(&error_priv->error->ref, i915_error_state_free); | |
1387 | } | |
1388 | ||
1389 | void i915_destroy_error_state(struct drm_device *dev) | |
1390 | { | |
1391 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1392 | struct drm_i915_error_state *error; | |
84734a04 | 1393 | |
5b254c59 | 1394 | spin_lock_irq(&dev_priv->gpu_error.lock); |
84734a04 MK |
1395 | error = dev_priv->gpu_error.first_error; |
1396 | dev_priv->gpu_error.first_error = NULL; | |
5b254c59 | 1397 | spin_unlock_irq(&dev_priv->gpu_error.lock); |
84734a04 MK |
1398 | |
1399 | if (error) | |
1400 | kref_put(&error->ref, i915_error_state_free); | |
1401 | } | |
1402 | ||
0a4cd7c8 | 1403 | const char *i915_cache_level_str(struct drm_i915_private *i915, int type) |
84734a04 MK |
1404 | { |
1405 | switch (type) { | |
1406 | case I915_CACHE_NONE: return " uncached"; | |
0a4cd7c8 | 1407 | case I915_CACHE_LLC: return HAS_LLC(i915) ? " LLC" : " snooped"; |
350ec881 | 1408 | case I915_CACHE_L3_LLC: return " L3+LLC"; |
f56383cb | 1409 | case I915_CACHE_WT: return " WT"; |
84734a04 MK |
1410 | default: return ""; |
1411 | } | |
1412 | } | |
1413 | ||
1414 | /* NB: please notice the memset */ | |
1415 | void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone) | |
1416 | { | |
1417 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1418 | memset(instdone, 0, sizeof(*instdone) * I915_NUM_INSTDONE_REG); | |
1419 | ||
563f94f6 | 1420 | if (IS_GEN2(dev) || IS_GEN3(dev)) |
bd93a50e | 1421 | instdone[0] = I915_READ(GEN2_INSTDONE); |
563f94f6 | 1422 | else if (IS_GEN4(dev) || IS_GEN5(dev) || IS_GEN6(dev)) { |
f1d54348 | 1423 | instdone[0] = I915_READ(RING_INSTDONE(RENDER_RING_BASE)); |
13d70b81 | 1424 | instdone[1] = I915_READ(GEN4_INSTDONE1); |
563f94f6 | 1425 | } else if (INTEL_INFO(dev)->gen >= 7) { |
f1d54348 | 1426 | instdone[0] = I915_READ(RING_INSTDONE(RENDER_RING_BASE)); |
84734a04 MK |
1427 | instdone[1] = I915_READ(GEN7_SC_INSTDONE); |
1428 | instdone[2] = I915_READ(GEN7_SAMPLER_INSTDONE); | |
1429 | instdone[3] = I915_READ(GEN7_ROW_INSTDONE); | |
84734a04 MK |
1430 | } |
1431 | } |