2 * Copyright (c) 2008 Intel Corporation
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:
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
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
24 * Eric Anholt <eric@anholt.net>
25 * Keith Packard <keithp@keithp.com>
26 * Mika Kuoppala <mika.kuoppala@intel.com>
30 #include <generated/utsrelease.h>
33 static const char *yesno(int v
)
35 return v
? "yes" : "no";
38 static const char *ring_str(int ring
)
41 case RCS
: return "render";
42 case VCS
: return "bsd";
43 case BCS
: return "blt";
44 case VECS
: return "vebox";
49 static const char *pin_flag(int pinned
)
59 static const char *tiling_flag(int tiling
)
63 case I915_TILING_NONE
: return "";
64 case I915_TILING_X
: return " X";
65 case I915_TILING_Y
: return " Y";
69 static const char *dirty_flag(int dirty
)
71 return dirty
? " dirty" : "";
74 static const char *purgeable_flag(int purgeable
)
76 return purgeable
? " purgeable" : "";
79 static bool __i915_error_ok(struct drm_i915_error_state_buf
*e
)
82 if (!e
->err
&& WARN(e
->bytes
> (e
->size
- 1), "overflow")) {
87 if (e
->bytes
== e
->size
- 1 || e
->err
)
93 static bool __i915_error_seek(struct drm_i915_error_state_buf
*e
,
96 if (e
->pos
+ len
<= e
->start
) {
101 /* First vsnprintf needs to fit in its entirety for memmove */
102 if (len
>= e
->size
) {
110 static void __i915_error_advance(struct drm_i915_error_state_buf
*e
,
113 /* If this is first printf in this window, adjust it so that
114 * start position matches start of the buffer
117 if (e
->pos
< e
->start
) {
118 const size_t off
= e
->start
- e
->pos
;
120 /* Should not happen but be paranoid */
121 if (off
> len
|| e
->bytes
) {
126 memmove(e
->buf
, e
->buf
+ off
, len
- off
);
127 e
->bytes
= len
- off
;
136 static void i915_error_vprintf(struct drm_i915_error_state_buf
*e
,
137 const char *f
, va_list args
)
141 if (!__i915_error_ok(e
))
144 /* Seek the first printf which is hits start position */
145 if (e
->pos
< e
->start
) {
149 if (!__i915_error_seek(e
, vsnprintf(NULL
, 0, f
, tmp
)))
153 len
= vsnprintf(e
->buf
+ e
->bytes
, e
->size
- e
->bytes
, f
, args
);
154 if (len
>= e
->size
- e
->bytes
)
155 len
= e
->size
- e
->bytes
- 1;
157 __i915_error_advance(e
, len
);
160 static void i915_error_puts(struct drm_i915_error_state_buf
*e
,
165 if (!__i915_error_ok(e
))
170 /* Seek the first printf which is hits start position */
171 if (e
->pos
< e
->start
) {
172 if (!__i915_error_seek(e
, len
))
176 if (len
>= e
->size
- e
->bytes
)
177 len
= e
->size
- e
->bytes
- 1;
178 memcpy(e
->buf
+ e
->bytes
, str
, len
);
180 __i915_error_advance(e
, len
);
183 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
184 #define err_puts(e, s) i915_error_puts(e, s)
186 static void print_error_buffers(struct drm_i915_error_state_buf
*m
,
188 struct drm_i915_error_buffer
*err
,
191 err_printf(m
, "%s [%d]:\n", name
, count
);
194 err_printf(m
, " %08x %8u %02x %02x %x %x",
199 err
->rseqno
, err
->wseqno
);
200 err_puts(m
, pin_flag(err
->pinned
));
201 err_puts(m
, tiling_flag(err
->tiling
));
202 err_puts(m
, dirty_flag(err
->dirty
));
203 err_puts(m
, purgeable_flag(err
->purgeable
));
204 err_puts(m
, err
->ring
!= -1 ? " " : "");
205 err_puts(m
, ring_str(err
->ring
));
206 err_puts(m
, i915_cache_level_str(err
->cache_level
));
209 err_printf(m
, " (name: %d)", err
->name
);
210 if (err
->fence_reg
!= I915_FENCE_REG_NONE
)
211 err_printf(m
, " (fence: %d)", err
->fence_reg
);
218 static const char *hangcheck_action_to_str(enum intel_ring_hangcheck_action a
)
225 case HANGCHECK_ACTIVE
:
236 static void i915_ring_error_state(struct drm_i915_error_state_buf
*m
,
237 struct drm_device
*dev
,
238 struct drm_i915_error_state
*error
,
241 BUG_ON(ring
>= I915_NUM_RINGS
); /* shut up confused gcc */
242 err_printf(m
, "%s command stream:\n", ring_str(ring
));
243 err_printf(m
, " HEAD: 0x%08x\n", error
->head
[ring
]);
244 err_printf(m
, " TAIL: 0x%08x\n", error
->tail
[ring
]);
245 err_printf(m
, " CTL: 0x%08x\n", error
->ctl
[ring
]);
246 err_printf(m
, " ACTHD: 0x%08x\n", error
->acthd
[ring
]);
247 err_printf(m
, " IPEIR: 0x%08x\n", error
->ipeir
[ring
]);
248 err_printf(m
, " IPEHR: 0x%08x\n", error
->ipehr
[ring
]);
249 err_printf(m
, " INSTDONE: 0x%08x\n", error
->instdone
[ring
]);
250 if (ring
== RCS
&& INTEL_INFO(dev
)->gen
>= 4)
251 err_printf(m
, " BBADDR: 0x%08llx\n", error
->bbaddr
);
252 if (INTEL_INFO(dev
)->gen
>= 4)
253 err_printf(m
, " BB_STATE: 0x%08x\n", error
->bbstate
[ring
]);
254 if (INTEL_INFO(dev
)->gen
>= 4)
255 err_printf(m
, " INSTPS: 0x%08x\n", error
->instps
[ring
]);
256 err_printf(m
, " INSTPM: 0x%08x\n", error
->instpm
[ring
]);
257 err_printf(m
, " FADDR: 0x%08x\n", error
->faddr
[ring
]);
258 if (INTEL_INFO(dev
)->gen
>= 6) {
259 err_printf(m
, " RC PSMI: 0x%08x\n", error
->rc_psmi
[ring
]);
260 err_printf(m
, " FAULT_REG: 0x%08x\n", error
->fault_reg
[ring
]);
261 err_printf(m
, " SYNC_0: 0x%08x [last synced 0x%08x]\n",
262 error
->semaphore_mboxes
[ring
][0],
263 error
->semaphore_seqno
[ring
][0]);
264 err_printf(m
, " SYNC_1: 0x%08x [last synced 0x%08x]\n",
265 error
->semaphore_mboxes
[ring
][1],
266 error
->semaphore_seqno
[ring
][1]);
267 if (HAS_VEBOX(dev
)) {
268 err_printf(m
, " SYNC_2: 0x%08x [last synced 0x%08x]\n",
269 error
->semaphore_mboxes
[ring
][2],
270 error
->semaphore_seqno
[ring
][2]);
273 err_printf(m
, " seqno: 0x%08x\n", error
->seqno
[ring
]);
274 err_printf(m
, " waiting: %s\n", yesno(error
->waiting
[ring
]));
275 err_printf(m
, " ring->head: 0x%08x\n", error
->cpu_ring_head
[ring
]);
276 err_printf(m
, " ring->tail: 0x%08x\n", error
->cpu_ring_tail
[ring
]);
277 err_printf(m
, " hangcheck: %s [%d]\n",
278 hangcheck_action_to_str(error
->hangcheck_action
[ring
]),
279 error
->hangcheck_score
[ring
]);
282 void i915_error_printf(struct drm_i915_error_state_buf
*e
, const char *f
, ...)
287 i915_error_vprintf(e
, f
, args
);
291 int i915_error_state_to_str(struct drm_i915_error_state_buf
*m
,
292 const struct i915_error_state_file_priv
*error_priv
)
294 struct drm_device
*dev
= error_priv
->dev
;
295 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
296 struct drm_i915_error_state
*error
= error_priv
->error
;
297 struct intel_ring_buffer
*ring
;
298 int i
, j
, page
, offset
, elt
;
301 err_printf(m
, "no error state collected\n");
305 err_printf(m
, "Time: %ld s %ld us\n", error
->time
.tv_sec
,
306 error
->time
.tv_usec
);
307 err_printf(m
, "Kernel: " UTS_RELEASE
"\n");
308 err_printf(m
, "PCI ID: 0x%04x\n", dev
->pdev
->device
);
309 err_printf(m
, "EIR: 0x%08x\n", error
->eir
);
310 err_printf(m
, "IER: 0x%08x\n", error
->ier
);
311 err_printf(m
, "PGTBL_ER: 0x%08x\n", error
->pgtbl_er
);
312 err_printf(m
, "FORCEWAKE: 0x%08x\n", error
->forcewake
);
313 err_printf(m
, "DERRMR: 0x%08x\n", error
->derrmr
);
314 err_printf(m
, "CCID: 0x%08x\n", error
->ccid
);
315 err_printf(m
, "Missed interrupts: 0x%08lx\n", dev_priv
->gpu_error
.missed_irq_rings
);
317 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++)
318 err_printf(m
, " fence[%d] = %08llx\n", i
, error
->fence
[i
]);
320 for (i
= 0; i
< ARRAY_SIZE(error
->extra_instdone
); i
++)
321 err_printf(m
, " INSTDONE_%d: 0x%08x\n", i
,
322 error
->extra_instdone
[i
]);
324 if (INTEL_INFO(dev
)->gen
>= 6) {
325 err_printf(m
, "ERROR: 0x%08x\n", error
->error
);
326 err_printf(m
, "DONE_REG: 0x%08x\n", error
->done_reg
);
329 if (INTEL_INFO(dev
)->gen
== 7)
330 err_printf(m
, "ERR_INT: 0x%08x\n", error
->err_int
);
332 for_each_ring(ring
, dev_priv
, i
)
333 i915_ring_error_state(m
, dev
, error
, i
);
335 if (error
->active_bo
)
336 print_error_buffers(m
, "Active",
338 error
->active_bo_count
[0]);
340 if (error
->pinned_bo
)
341 print_error_buffers(m
, "Pinned",
343 error
->pinned_bo_count
[0]);
345 for (i
= 0; i
< ARRAY_SIZE(error
->ring
); i
++) {
346 struct drm_i915_error_object
*obj
;
348 if ((obj
= error
->ring
[i
].batchbuffer
)) {
349 err_printf(m
, "%s --- gtt_offset = 0x%08x\n",
350 dev_priv
->ring
[i
].name
,
353 for (page
= 0; page
< obj
->page_count
; page
++) {
354 for (elt
= 0; elt
< PAGE_SIZE
/4; elt
++) {
355 err_printf(m
, "%08x : %08x\n", offset
,
356 obj
->pages
[page
][elt
]);
362 if (error
->ring
[i
].num_requests
) {
363 err_printf(m
, "%s --- %d requests\n",
364 dev_priv
->ring
[i
].name
,
365 error
->ring
[i
].num_requests
);
366 for (j
= 0; j
< error
->ring
[i
].num_requests
; j
++) {
367 err_printf(m
, " seqno 0x%08x, emitted %ld, tail 0x%08x\n",
368 error
->ring
[i
].requests
[j
].seqno
,
369 error
->ring
[i
].requests
[j
].jiffies
,
370 error
->ring
[i
].requests
[j
].tail
);
374 if ((obj
= error
->ring
[i
].ringbuffer
)) {
375 err_printf(m
, "%s --- ringbuffer = 0x%08x\n",
376 dev_priv
->ring
[i
].name
,
379 for (page
= 0; page
< obj
->page_count
; page
++) {
380 for (elt
= 0; elt
< PAGE_SIZE
/4; elt
++) {
381 err_printf(m
, "%08x : %08x\n",
383 obj
->pages
[page
][elt
]);
389 obj
= error
->ring
[i
].ctx
;
391 err_printf(m
, "%s --- HW Context = 0x%08x\n",
392 dev_priv
->ring
[i
].name
,
395 for (elt
= 0; elt
< PAGE_SIZE
/16; elt
+= 4) {
396 err_printf(m
, "[%04x] %08x %08x %08x %08x\n",
399 obj
->pages
[0][elt
+1],
400 obj
->pages
[0][elt
+2],
401 obj
->pages
[0][elt
+3]);
408 intel_overlay_print_error_state(m
, error
->overlay
);
411 intel_display_print_error_state(m
, dev
, error
->display
);
414 if (m
->bytes
== 0 && m
->err
)
420 int i915_error_state_buf_init(struct drm_i915_error_state_buf
*ebuf
,
421 size_t count
, loff_t pos
)
423 memset(ebuf
, 0, sizeof(*ebuf
));
425 /* We need to have enough room to store any i915_error_state printf
426 * so that we can move it to start position.
428 ebuf
->size
= count
+ 1 > PAGE_SIZE
? count
+ 1 : PAGE_SIZE
;
429 ebuf
->buf
= kmalloc(ebuf
->size
,
430 GFP_TEMPORARY
| __GFP_NORETRY
| __GFP_NOWARN
);
432 if (ebuf
->buf
== NULL
) {
433 ebuf
->size
= PAGE_SIZE
;
434 ebuf
->buf
= kmalloc(ebuf
->size
, GFP_TEMPORARY
);
437 if (ebuf
->buf
== NULL
) {
439 ebuf
->buf
= kmalloc(ebuf
->size
, GFP_TEMPORARY
);
442 if (ebuf
->buf
== NULL
)
450 static void i915_error_object_free(struct drm_i915_error_object
*obj
)
457 for (page
= 0; page
< obj
->page_count
; page
++)
458 kfree(obj
->pages
[page
]);
463 static void i915_error_state_free(struct kref
*error_ref
)
465 struct drm_i915_error_state
*error
= container_of(error_ref
,
466 typeof(*error
), ref
);
469 for (i
= 0; i
< ARRAY_SIZE(error
->ring
); i
++) {
470 i915_error_object_free(error
->ring
[i
].batchbuffer
);
471 i915_error_object_free(error
->ring
[i
].ringbuffer
);
472 i915_error_object_free(error
->ring
[i
].ctx
);
473 kfree(error
->ring
[i
].requests
);
476 kfree(error
->active_bo
);
477 kfree(error
->overlay
);
478 kfree(error
->display
);
482 static struct drm_i915_error_object
*
483 i915_error_object_create_sized(struct drm_i915_private
*dev_priv
,
484 struct drm_i915_gem_object
*src
,
487 struct drm_i915_error_object
*dst
;
491 if (src
== NULL
|| src
->pages
== NULL
)
494 dst
= kmalloc(sizeof(*dst
) + num_pages
* sizeof(u32
*), GFP_ATOMIC
);
498 reloc_offset
= dst
->gtt_offset
= i915_gem_obj_ggtt_offset(src
);
499 for (i
= 0; i
< num_pages
; i
++) {
503 d
= kmalloc(PAGE_SIZE
, GFP_ATOMIC
);
507 local_irq_save(flags
);
508 if (reloc_offset
< dev_priv
->gtt
.mappable_end
&&
509 src
->has_global_gtt_mapping
) {
512 /* Simply ignore tiling or any overlapping fence.
513 * It's part of the error state, and this hopefully
514 * captures what the GPU read.
517 s
= io_mapping_map_atomic_wc(dev_priv
->gtt
.mappable
,
519 memcpy_fromio(d
, s
, PAGE_SIZE
);
520 io_mapping_unmap_atomic(s
);
521 } else if (src
->stolen
) {
522 unsigned long offset
;
524 offset
= dev_priv
->mm
.stolen_base
;
525 offset
+= src
->stolen
->start
;
526 offset
+= i
<< PAGE_SHIFT
;
528 memcpy_fromio(d
, (void __iomem
*) offset
, PAGE_SIZE
);
533 page
= i915_gem_object_get_page(src
, i
);
535 drm_clflush_pages(&page
, 1);
537 s
= kmap_atomic(page
);
538 memcpy(d
, s
, PAGE_SIZE
);
541 drm_clflush_pages(&page
, 1);
543 local_irq_restore(flags
);
547 reloc_offset
+= PAGE_SIZE
;
549 dst
->page_count
= num_pages
;
555 kfree(dst
->pages
[i
]);
559 #define i915_error_object_create(dev_priv, src) \
560 i915_error_object_create_sized((dev_priv), (src), \
561 (src)->base.size>>PAGE_SHIFT)
563 static void capture_bo(struct drm_i915_error_buffer
*err
,
564 struct drm_i915_gem_object
*obj
)
566 err
->size
= obj
->base
.size
;
567 err
->name
= obj
->base
.name
;
568 err
->rseqno
= obj
->last_read_seqno
;
569 err
->wseqno
= obj
->last_write_seqno
;
570 err
->gtt_offset
= i915_gem_obj_ggtt_offset(obj
);
571 err
->read_domains
= obj
->base
.read_domains
;
572 err
->write_domain
= obj
->base
.write_domain
;
573 err
->fence_reg
= obj
->fence_reg
;
575 if (obj
->pin_count
> 0)
577 if (obj
->user_pin_count
> 0)
579 err
->tiling
= obj
->tiling_mode
;
580 err
->dirty
= obj
->dirty
;
581 err
->purgeable
= obj
->madv
!= I915_MADV_WILLNEED
;
582 err
->ring
= obj
->ring
? obj
->ring
->id
: -1;
583 err
->cache_level
= obj
->cache_level
;
586 static u32
capture_active_bo(struct drm_i915_error_buffer
*err
,
587 int count
, struct list_head
*head
)
589 struct i915_vma
*vma
;
592 list_for_each_entry(vma
, head
, mm_list
) {
593 capture_bo(err
++, vma
->obj
);
601 static u32
capture_pinned_bo(struct drm_i915_error_buffer
*err
,
602 int count
, struct list_head
*head
)
604 struct drm_i915_gem_object
*obj
;
607 list_for_each_entry(obj
, head
, global_list
) {
608 if (obj
->pin_count
== 0)
611 capture_bo(err
++, obj
);
619 static void i915_gem_record_fences(struct drm_device
*dev
,
620 struct drm_i915_error_state
*error
)
622 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
626 switch (INTEL_INFO(dev
)->gen
) {
630 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++)
631 error
->fence
[i
] = I915_READ64(FENCE_REG_SANDYBRIDGE_0
+ (i
* 8));
635 for (i
= 0; i
< 16; i
++)
636 error
->fence
[i
] = I915_READ64(FENCE_REG_965_0
+ (i
* 8));
639 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
))
640 for (i
= 0; i
< 8; i
++)
641 error
->fence
[i
+8] = I915_READ(FENCE_REG_945_8
+ (i
* 4));
643 for (i
= 0; i
< 8; i
++)
644 error
->fence
[i
] = I915_READ(FENCE_REG_830_0
+ (i
* 4));
652 static struct drm_i915_error_object
*
653 i915_error_first_batchbuffer(struct drm_i915_private
*dev_priv
,
654 struct intel_ring_buffer
*ring
)
656 struct i915_address_space
*vm
;
657 struct i915_vma
*vma
;
658 struct drm_i915_gem_object
*obj
;
661 if (!ring
->get_seqno
)
664 if (HAS_BROKEN_CS_TLB(dev_priv
->dev
)) {
665 u32 acthd
= I915_READ(ACTHD
);
667 if (WARN_ON(ring
->id
!= RCS
))
670 obj
= ring
->scratch
.obj
;
671 if (acthd
>= i915_gem_obj_ggtt_offset(obj
) &&
672 acthd
< i915_gem_obj_ggtt_offset(obj
) + obj
->base
.size
)
673 return i915_error_object_create(dev_priv
, obj
);
676 seqno
= ring
->get_seqno(ring
, false);
677 list_for_each_entry(vm
, &dev_priv
->vm_list
, global_link
) {
678 list_for_each_entry(vma
, &vm
->active_list
, mm_list
) {
680 if (obj
->ring
!= ring
)
683 if (i915_seqno_passed(seqno
, obj
->last_read_seqno
))
686 if ((obj
->base
.read_domains
& I915_GEM_DOMAIN_COMMAND
) == 0)
689 /* We need to copy these to an anonymous buffer as the simplest
690 * method to avoid being overwritten by userspace.
692 return i915_error_object_create(dev_priv
, obj
);
699 static void i915_record_ring_state(struct drm_device
*dev
,
700 struct drm_i915_error_state
*error
,
701 struct intel_ring_buffer
*ring
)
703 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
705 if (INTEL_INFO(dev
)->gen
>= 6) {
706 error
->rc_psmi
[ring
->id
] = I915_READ(ring
->mmio_base
+ 0x50);
707 error
->fault_reg
[ring
->id
] = I915_READ(RING_FAULT_REG(ring
));
708 error
->semaphore_mboxes
[ring
->id
][0]
709 = I915_READ(RING_SYNC_0(ring
->mmio_base
));
710 error
->semaphore_mboxes
[ring
->id
][1]
711 = I915_READ(RING_SYNC_1(ring
->mmio_base
));
712 error
->semaphore_seqno
[ring
->id
][0] = ring
->sync_seqno
[0];
713 error
->semaphore_seqno
[ring
->id
][1] = ring
->sync_seqno
[1];
716 if (HAS_VEBOX(dev
)) {
717 error
->semaphore_mboxes
[ring
->id
][2] =
718 I915_READ(RING_SYNC_2(ring
->mmio_base
));
719 error
->semaphore_seqno
[ring
->id
][2] = ring
->sync_seqno
[2];
722 if (INTEL_INFO(dev
)->gen
>= 4) {
723 error
->faddr
[ring
->id
] = I915_READ(RING_DMA_FADD(ring
->mmio_base
));
724 error
->ipeir
[ring
->id
] = I915_READ(RING_IPEIR(ring
->mmio_base
));
725 error
->ipehr
[ring
->id
] = I915_READ(RING_IPEHR(ring
->mmio_base
));
726 error
->instdone
[ring
->id
] = I915_READ(RING_INSTDONE(ring
->mmio_base
));
727 error
->instps
[ring
->id
] = I915_READ(RING_INSTPS(ring
->mmio_base
));
729 error
->bbaddr
= I915_READ64(BB_ADDR
);
730 error
->bbstate
[ring
->id
] = I915_READ(RING_BBSTATE(ring
->mmio_base
));
732 error
->faddr
[ring
->id
] = I915_READ(DMA_FADD_I8XX
);
733 error
->ipeir
[ring
->id
] = I915_READ(IPEIR
);
734 error
->ipehr
[ring
->id
] = I915_READ(IPEHR
);
735 error
->instdone
[ring
->id
] = I915_READ(INSTDONE
);
738 error
->waiting
[ring
->id
] = waitqueue_active(&ring
->irq_queue
);
739 error
->instpm
[ring
->id
] = I915_READ(RING_INSTPM(ring
->mmio_base
));
740 error
->seqno
[ring
->id
] = ring
->get_seqno(ring
, false);
741 error
->acthd
[ring
->id
] = intel_ring_get_active_head(ring
);
742 error
->head
[ring
->id
] = I915_READ_HEAD(ring
);
743 error
->tail
[ring
->id
] = I915_READ_TAIL(ring
);
744 error
->ctl
[ring
->id
] = I915_READ_CTL(ring
);
746 error
->cpu_ring_head
[ring
->id
] = ring
->head
;
747 error
->cpu_ring_tail
[ring
->id
] = ring
->tail
;
749 error
->hangcheck_score
[ring
->id
] = ring
->hangcheck
.score
;
750 error
->hangcheck_action
[ring
->id
] = ring
->hangcheck
.action
;
754 static void i915_gem_record_active_context(struct intel_ring_buffer
*ring
,
755 struct drm_i915_error_state
*error
,
756 struct drm_i915_error_ring
*ering
)
758 struct drm_i915_private
*dev_priv
= ring
->dev
->dev_private
;
759 struct drm_i915_gem_object
*obj
;
761 /* Currently render ring is the only HW context user */
762 if (ring
->id
!= RCS
|| !error
->ccid
)
765 list_for_each_entry(obj
, &dev_priv
->mm
.bound_list
, global_list
) {
766 if ((error
->ccid
& PAGE_MASK
) == i915_gem_obj_ggtt_offset(obj
)) {
767 ering
->ctx
= i915_error_object_create_sized(dev_priv
,
774 static void i915_gem_record_rings(struct drm_device
*dev
,
775 struct drm_i915_error_state
*error
)
777 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
778 struct intel_ring_buffer
*ring
;
779 struct drm_i915_gem_request
*request
;
782 for_each_ring(ring
, dev_priv
, i
) {
783 i915_record_ring_state(dev
, error
, ring
);
785 error
->ring
[i
].batchbuffer
=
786 i915_error_first_batchbuffer(dev_priv
, ring
);
788 error
->ring
[i
].ringbuffer
=
789 i915_error_object_create(dev_priv
, ring
->obj
);
792 i915_gem_record_active_context(ring
, error
, &error
->ring
[i
]);
795 list_for_each_entry(request
, &ring
->request_list
, list
)
798 error
->ring
[i
].num_requests
= count
;
799 error
->ring
[i
].requests
=
800 kcalloc(count
, sizeof(*error
->ring
[i
].requests
),
802 if (error
->ring
[i
].requests
== NULL
) {
803 error
->ring
[i
].num_requests
= 0;
808 list_for_each_entry(request
, &ring
->request_list
, list
) {
809 struct drm_i915_error_request
*erq
;
811 erq
= &error
->ring
[i
].requests
[count
++];
812 erq
->seqno
= request
->seqno
;
813 erq
->jiffies
= request
->emitted_jiffies
;
814 erq
->tail
= request
->tail
;
819 /* FIXME: Since pin count/bound list is global, we duplicate what we capture per
822 static void i915_gem_capture_vm(struct drm_i915_private
*dev_priv
,
823 struct drm_i915_error_state
*error
,
824 struct i915_address_space
*vm
,
827 struct drm_i915_error_buffer
*active_bo
= NULL
, *pinned_bo
= NULL
;
828 struct drm_i915_gem_object
*obj
;
829 struct i915_vma
*vma
;
833 list_for_each_entry(vma
, &vm
->active_list
, mm_list
)
835 error
->active_bo_count
[ndx
] = i
;
836 list_for_each_entry(obj
, &dev_priv
->mm
.bound_list
, global_list
)
839 error
->pinned_bo_count
[ndx
] = i
- error
->active_bo_count
[ndx
];
842 active_bo
= kcalloc(i
, sizeof(*active_bo
), GFP_ATOMIC
);
844 pinned_bo
= active_bo
+ error
->active_bo_count
[ndx
];
848 error
->active_bo_count
[ndx
] =
849 capture_active_bo(active_bo
,
850 error
->active_bo_count
[ndx
],
854 error
->pinned_bo_count
[ndx
] =
855 capture_pinned_bo(pinned_bo
,
856 error
->pinned_bo_count
[ndx
],
857 &dev_priv
->mm
.bound_list
);
858 error
->active_bo
[ndx
] = active_bo
;
859 error
->pinned_bo
[ndx
] = pinned_bo
;
862 static void i915_gem_capture_buffers(struct drm_i915_private
*dev_priv
,
863 struct drm_i915_error_state
*error
)
865 struct i915_address_space
*vm
;
868 list_for_each_entry(vm
, &dev_priv
->vm_list
, global_link
)
871 if (WARN(cnt
> 1, "Multiple VMs not yet supported\n"))
874 vm
= &dev_priv
->gtt
.base
;
876 error
->active_bo
= kcalloc(cnt
, sizeof(*error
->active_bo
), GFP_ATOMIC
);
877 error
->pinned_bo
= kcalloc(cnt
, sizeof(*error
->pinned_bo
), GFP_ATOMIC
);
878 error
->active_bo_count
= kcalloc(cnt
, sizeof(*error
->active_bo_count
),
880 error
->pinned_bo_count
= kcalloc(cnt
, sizeof(*error
->pinned_bo_count
),
883 list_for_each_entry(vm
, &dev_priv
->vm_list
, global_link
)
884 i915_gem_capture_vm(dev_priv
, error
, vm
, i
++);
888 * i915_capture_error_state - capture an error record for later analysis
891 * Should be called when an error is detected (either a hang or an error
892 * interrupt) to capture error state from the time of the error. Fills
893 * out a structure which becomes available in debugfs for user level tools
896 void i915_capture_error_state(struct drm_device
*dev
)
898 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
899 struct drm_i915_error_state
*error
;
903 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
904 error
= dev_priv
->gpu_error
.first_error
;
905 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
909 /* Account for pipe specific data like PIPE*STAT */
910 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
912 DRM_DEBUG_DRIVER("out of memory, not capturing error state\n");
916 DRM_INFO("GPU crash dump saved to /sys/class/drm/card%d/error\n",
917 dev
->primary
->index
);
918 DRM_INFO("GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.\n");
919 DRM_INFO("Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel\n");
920 DRM_INFO("drm/i915 developers can then reassign to the right component if it's not a kernel issue.\n");
921 DRM_INFO("The gpu crash dump is required to analyze gpu hangs, so please always attach it.\n");
923 kref_init(&error
->ref
);
924 error
->eir
= I915_READ(EIR
);
925 error
->pgtbl_er
= I915_READ(PGTBL_ER
);
926 if (HAS_HW_CONTEXTS(dev
))
927 error
->ccid
= I915_READ(CCID
);
929 if (HAS_PCH_SPLIT(dev
))
930 error
->ier
= I915_READ(DEIER
) | I915_READ(GTIER
);
931 else if (IS_VALLEYVIEW(dev
))
932 error
->ier
= I915_READ(GTIER
) | I915_READ(VLV_IER
);
933 else if (IS_GEN2(dev
))
934 error
->ier
= I915_READ16(IER
);
936 error
->ier
= I915_READ(IER
);
938 if (INTEL_INFO(dev
)->gen
>= 6)
939 error
->derrmr
= I915_READ(DERRMR
);
941 if (IS_VALLEYVIEW(dev
))
942 error
->forcewake
= I915_READ(FORCEWAKE_VLV
);
943 else if (INTEL_INFO(dev
)->gen
>= 7)
944 error
->forcewake
= I915_READ(FORCEWAKE_MT
);
945 else if (INTEL_INFO(dev
)->gen
== 6)
946 error
->forcewake
= I915_READ(FORCEWAKE
);
948 if (!HAS_PCH_SPLIT(dev
))
950 error
->pipestat
[pipe
] = I915_READ(PIPESTAT(pipe
));
952 if (INTEL_INFO(dev
)->gen
>= 6) {
953 error
->error
= I915_READ(ERROR_GEN6
);
954 error
->done_reg
= I915_READ(DONE_REG
);
957 if (INTEL_INFO(dev
)->gen
== 7)
958 error
->err_int
= I915_READ(GEN7_ERR_INT
);
960 i915_get_extra_instdone(dev
, error
->extra_instdone
);
962 i915_gem_capture_buffers(dev_priv
, error
);
963 i915_gem_record_fences(dev
, error
);
964 i915_gem_record_rings(dev
, error
);
966 do_gettimeofday(&error
->time
);
968 error
->overlay
= intel_overlay_capture_error_state(dev
);
969 error
->display
= intel_display_capture_error_state(dev
);
971 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
972 if (dev_priv
->gpu_error
.first_error
== NULL
) {
973 dev_priv
->gpu_error
.first_error
= error
;
976 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
979 i915_error_state_free(&error
->ref
);
982 void i915_error_state_get(struct drm_device
*dev
,
983 struct i915_error_state_file_priv
*error_priv
)
985 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
988 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
989 error_priv
->error
= dev_priv
->gpu_error
.first_error
;
990 if (error_priv
->error
)
991 kref_get(&error_priv
->error
->ref
);
992 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
996 void i915_error_state_put(struct i915_error_state_file_priv
*error_priv
)
998 if (error_priv
->error
)
999 kref_put(&error_priv
->error
->ref
, i915_error_state_free
);
1002 void i915_destroy_error_state(struct drm_device
*dev
)
1004 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1005 struct drm_i915_error_state
*error
;
1006 unsigned long flags
;
1008 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
1009 error
= dev_priv
->gpu_error
.first_error
;
1010 dev_priv
->gpu_error
.first_error
= NULL
;
1011 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
1014 kref_put(&error
->ref
, i915_error_state_free
);
1017 const char *i915_cache_level_str(int type
)
1020 case I915_CACHE_NONE
: return " uncached";
1021 case I915_CACHE_LLC
: return " snooped or LLC";
1022 case I915_CACHE_L3_LLC
: return " L3+LLC";
1023 case I915_CACHE_WT
: return " WT";
1028 /* NB: please notice the memset */
1029 void i915_get_extra_instdone(struct drm_device
*dev
, uint32_t *instdone
)
1031 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1032 memset(instdone
, 0, sizeof(*instdone
) * I915_NUM_INSTDONE_REG
);
1034 switch (INTEL_INFO(dev
)->gen
) {
1037 instdone
[0] = I915_READ(INSTDONE
);
1042 instdone
[0] = I915_READ(INSTDONE_I965
);
1043 instdone
[1] = I915_READ(INSTDONE1
);
1046 WARN_ONCE(1, "Unsupported platform\n");
1049 instdone
[0] = I915_READ(GEN7_INSTDONE_1
);
1050 instdone
[1] = I915_READ(GEN7_SC_INSTDONE
);
1051 instdone
[2] = I915_READ(GEN7_SAMPLER_INSTDONE
);
1052 instdone
[3] = I915_READ(GEN7_ROW_INSTDONE
);