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 if (!error
->ring
[ring
].valid
)
245 err_printf(m
, "%s command stream:\n", ring_str(ring
));
246 err_printf(m
, " HEAD: 0x%08x\n", error
->head
[ring
]);
247 err_printf(m
, " TAIL: 0x%08x\n", error
->tail
[ring
]);
248 err_printf(m
, " CTL: 0x%08x\n", error
->ctl
[ring
]);
249 err_printf(m
, " ACTHD: 0x%08x\n", error
->acthd
[ring
]);
250 err_printf(m
, " IPEIR: 0x%08x\n", error
->ipeir
[ring
]);
251 err_printf(m
, " IPEHR: 0x%08x\n", error
->ipehr
[ring
]);
252 err_printf(m
, " INSTDONE: 0x%08x\n", error
->instdone
[ring
]);
253 if (INTEL_INFO(dev
)->gen
>= 4) {
254 err_printf(m
, " BBADDR: 0x%08llx\n", error
->bbaddr
[ring
]);
255 err_printf(m
, " BB_STATE: 0x%08x\n", error
->bbstate
[ring
]);
256 err_printf(m
, " INSTPS: 0x%08x\n", error
->instps
[ring
]);
258 err_printf(m
, " INSTPM: 0x%08x\n", error
->instpm
[ring
]);
259 err_printf(m
, " FADDR: 0x%08x\n", error
->faddr
[ring
]);
260 if (INTEL_INFO(dev
)->gen
>= 6) {
261 err_printf(m
, " RC PSMI: 0x%08x\n", error
->rc_psmi
[ring
]);
262 err_printf(m
, " FAULT_REG: 0x%08x\n", error
->fault_reg
[ring
]);
263 err_printf(m
, " SYNC_0: 0x%08x [last synced 0x%08x]\n",
264 error
->semaphore_mboxes
[ring
][0],
265 error
->semaphore_seqno
[ring
][0]);
266 err_printf(m
, " SYNC_1: 0x%08x [last synced 0x%08x]\n",
267 error
->semaphore_mboxes
[ring
][1],
268 error
->semaphore_seqno
[ring
][1]);
269 if (HAS_VEBOX(dev
)) {
270 err_printf(m
, " SYNC_2: 0x%08x [last synced 0x%08x]\n",
271 error
->semaphore_mboxes
[ring
][2],
272 error
->semaphore_seqno
[ring
][2]);
275 err_printf(m
, " seqno: 0x%08x\n", error
->seqno
[ring
]);
276 err_printf(m
, " waiting: %s\n", yesno(error
->waiting
[ring
]));
277 err_printf(m
, " ring->head: 0x%08x\n", error
->cpu_ring_head
[ring
]);
278 err_printf(m
, " ring->tail: 0x%08x\n", error
->cpu_ring_tail
[ring
]);
279 err_printf(m
, " hangcheck: %s [%d]\n",
280 hangcheck_action_to_str(error
->hangcheck_action
[ring
]),
281 error
->hangcheck_score
[ring
]);
284 void i915_error_printf(struct drm_i915_error_state_buf
*e
, const char *f
, ...)
289 i915_error_vprintf(e
, f
, args
);
293 int i915_error_state_to_str(struct drm_i915_error_state_buf
*m
,
294 const struct i915_error_state_file_priv
*error_priv
)
296 struct drm_device
*dev
= error_priv
->dev
;
297 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
298 struct drm_i915_error_state
*error
= error_priv
->error
;
299 int i
, j
, page
, offset
, elt
;
302 err_printf(m
, "no error state collected\n");
306 err_printf(m
, "Time: %ld s %ld us\n", error
->time
.tv_sec
,
307 error
->time
.tv_usec
);
308 err_printf(m
, "Kernel: " UTS_RELEASE
"\n");
309 err_printf(m
, "PCI ID: 0x%04x\n", dev
->pdev
->device
);
310 err_printf(m
, "EIR: 0x%08x\n", error
->eir
);
311 err_printf(m
, "IER: 0x%08x\n", error
->ier
);
312 err_printf(m
, "PGTBL_ER: 0x%08x\n", error
->pgtbl_er
);
313 err_printf(m
, "FORCEWAKE: 0x%08x\n", error
->forcewake
);
314 err_printf(m
, "DERRMR: 0x%08x\n", error
->derrmr
);
315 err_printf(m
, "CCID: 0x%08x\n", error
->ccid
);
316 err_printf(m
, "Missed interrupts: 0x%08lx\n", dev_priv
->gpu_error
.missed_irq_rings
);
318 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++)
319 err_printf(m
, " fence[%d] = %08llx\n", i
, error
->fence
[i
]);
321 for (i
= 0; i
< ARRAY_SIZE(error
->extra_instdone
); i
++)
322 err_printf(m
, " INSTDONE_%d: 0x%08x\n", i
,
323 error
->extra_instdone
[i
]);
325 if (INTEL_INFO(dev
)->gen
>= 6) {
326 err_printf(m
, "ERROR: 0x%08x\n", error
->error
);
327 err_printf(m
, "DONE_REG: 0x%08x\n", error
->done_reg
);
330 if (INTEL_INFO(dev
)->gen
== 7)
331 err_printf(m
, "ERR_INT: 0x%08x\n", error
->err_int
);
333 for (i
= 0; i
< ARRAY_SIZE(error
->ring
); i
++)
334 i915_ring_error_state(m
, dev
, error
, i
);
336 if (error
->active_bo
)
337 print_error_buffers(m
, "Active",
339 error
->active_bo_count
[0]);
341 if (error
->pinned_bo
)
342 print_error_buffers(m
, "Pinned",
344 error
->pinned_bo_count
[0]);
346 for (i
= 0; i
< ARRAY_SIZE(error
->ring
); i
++) {
347 struct drm_i915_error_object
*obj
;
349 if ((obj
= error
->ring
[i
].batchbuffer
)) {
350 err_printf(m
, "%s --- gtt_offset = 0x%08x\n",
351 dev_priv
->ring
[i
].name
,
354 for (page
= 0; page
< obj
->page_count
; page
++) {
355 for (elt
= 0; elt
< PAGE_SIZE
/4; elt
++) {
356 err_printf(m
, "%08x : %08x\n", offset
,
357 obj
->pages
[page
][elt
]);
363 if (error
->ring
[i
].num_requests
) {
364 err_printf(m
, "%s --- %d requests\n",
365 dev_priv
->ring
[i
].name
,
366 error
->ring
[i
].num_requests
);
367 for (j
= 0; j
< error
->ring
[i
].num_requests
; j
++) {
368 err_printf(m
, " seqno 0x%08x, emitted %ld, tail 0x%08x\n",
369 error
->ring
[i
].requests
[j
].seqno
,
370 error
->ring
[i
].requests
[j
].jiffies
,
371 error
->ring
[i
].requests
[j
].tail
);
375 if ((obj
= error
->ring
[i
].ringbuffer
)) {
376 err_printf(m
, "%s --- ringbuffer = 0x%08x\n",
377 dev_priv
->ring
[i
].name
,
380 for (page
= 0; page
< obj
->page_count
; page
++) {
381 for (elt
= 0; elt
< PAGE_SIZE
/4; elt
++) {
382 err_printf(m
, "%08x : %08x\n",
384 obj
->pages
[page
][elt
]);
390 if ((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
;
672 acthd
>= i915_gem_obj_ggtt_offset(obj
) &&
673 acthd
< i915_gem_obj_ggtt_offset(obj
) + obj
->base
.size
)
674 return i915_error_object_create(dev_priv
, obj
);
677 seqno
= ring
->get_seqno(ring
, false);
678 list_for_each_entry(vm
, &dev_priv
->vm_list
, global_link
) {
679 list_for_each_entry(vma
, &vm
->active_list
, mm_list
) {
681 if (obj
->ring
!= ring
)
684 if (i915_seqno_passed(seqno
, obj
->last_read_seqno
))
687 if ((obj
->base
.read_domains
& I915_GEM_DOMAIN_COMMAND
) == 0)
690 /* We need to copy these to an anonymous buffer as the simplest
691 * method to avoid being overwritten by userspace.
693 return i915_error_object_create(dev_priv
, obj
);
700 static void i915_record_ring_state(struct drm_device
*dev
,
701 struct drm_i915_error_state
*error
,
702 struct intel_ring_buffer
*ring
)
704 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
706 if (INTEL_INFO(dev
)->gen
>= 6) {
707 error
->rc_psmi
[ring
->id
] = I915_READ(ring
->mmio_base
+ 0x50);
708 error
->fault_reg
[ring
->id
] = I915_READ(RING_FAULT_REG(ring
));
709 error
->semaphore_mboxes
[ring
->id
][0]
710 = I915_READ(RING_SYNC_0(ring
->mmio_base
));
711 error
->semaphore_mboxes
[ring
->id
][1]
712 = I915_READ(RING_SYNC_1(ring
->mmio_base
));
713 error
->semaphore_seqno
[ring
->id
][0] = ring
->sync_seqno
[0];
714 error
->semaphore_seqno
[ring
->id
][1] = ring
->sync_seqno
[1];
717 if (HAS_VEBOX(dev
)) {
718 error
->semaphore_mboxes
[ring
->id
][2] =
719 I915_READ(RING_SYNC_2(ring
->mmio_base
));
720 error
->semaphore_seqno
[ring
->id
][2] = ring
->sync_seqno
[2];
723 if (INTEL_INFO(dev
)->gen
>= 4) {
724 error
->faddr
[ring
->id
] = I915_READ(RING_DMA_FADD(ring
->mmio_base
));
725 error
->ipeir
[ring
->id
] = I915_READ(RING_IPEIR(ring
->mmio_base
));
726 error
->ipehr
[ring
->id
] = I915_READ(RING_IPEHR(ring
->mmio_base
));
727 error
->instdone
[ring
->id
] = I915_READ(RING_INSTDONE(ring
->mmio_base
));
728 error
->instps
[ring
->id
] = I915_READ(RING_INSTPS(ring
->mmio_base
));
729 error
->bbaddr
[ring
->id
] = I915_READ(RING_BBADDR(ring
->mmio_base
));
730 if (INTEL_INFO(dev
)->gen
>= 8)
731 error
->bbaddr
[ring
->id
] |= (u64
) I915_READ(RING_BBADDR_UDW(ring
->mmio_base
)) << 32;
732 error
->bbstate
[ring
->id
] = I915_READ(RING_BBSTATE(ring
->mmio_base
));
734 error
->faddr
[ring
->id
] = I915_READ(DMA_FADD_I8XX
);
735 error
->ipeir
[ring
->id
] = I915_READ(IPEIR
);
736 error
->ipehr
[ring
->id
] = I915_READ(IPEHR
);
737 error
->instdone
[ring
->id
] = I915_READ(INSTDONE
);
740 error
->waiting
[ring
->id
] = waitqueue_active(&ring
->irq_queue
);
741 error
->instpm
[ring
->id
] = I915_READ(RING_INSTPM(ring
->mmio_base
));
742 error
->seqno
[ring
->id
] = ring
->get_seqno(ring
, false);
743 error
->acthd
[ring
->id
] = intel_ring_get_active_head(ring
);
744 error
->head
[ring
->id
] = I915_READ_HEAD(ring
);
745 error
->tail
[ring
->id
] = I915_READ_TAIL(ring
);
746 error
->ctl
[ring
->id
] = I915_READ_CTL(ring
);
748 error
->cpu_ring_head
[ring
->id
] = ring
->head
;
749 error
->cpu_ring_tail
[ring
->id
] = ring
->tail
;
751 error
->hangcheck_score
[ring
->id
] = ring
->hangcheck
.score
;
752 error
->hangcheck_action
[ring
->id
] = ring
->hangcheck
.action
;
756 static void i915_gem_record_active_context(struct intel_ring_buffer
*ring
,
757 struct drm_i915_error_state
*error
,
758 struct drm_i915_error_ring
*ering
)
760 struct drm_i915_private
*dev_priv
= ring
->dev
->dev_private
;
761 struct drm_i915_gem_object
*obj
;
763 /* Currently render ring is the only HW context user */
764 if (ring
->id
!= RCS
|| !error
->ccid
)
767 list_for_each_entry(obj
, &dev_priv
->mm
.bound_list
, global_list
) {
768 if ((error
->ccid
& PAGE_MASK
) == i915_gem_obj_ggtt_offset(obj
)) {
769 ering
->ctx
= i915_error_object_create_sized(dev_priv
,
776 static void i915_gem_record_rings(struct drm_device
*dev
,
777 struct drm_i915_error_state
*error
)
779 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
780 struct drm_i915_gem_request
*request
;
783 for (i
= 0; i
< I915_NUM_RINGS
; i
++) {
784 struct intel_ring_buffer
*ring
= &dev_priv
->ring
[i
];
786 if (ring
->dev
== NULL
)
789 error
->ring
[i
].valid
= true;
791 i915_record_ring_state(dev
, error
, ring
);
793 error
->ring
[i
].batchbuffer
=
794 i915_error_first_batchbuffer(dev_priv
, ring
);
796 error
->ring
[i
].ringbuffer
=
797 i915_error_object_create(dev_priv
, ring
->obj
);
800 i915_gem_record_active_context(ring
, error
, &error
->ring
[i
]);
803 list_for_each_entry(request
, &ring
->request_list
, list
)
806 error
->ring
[i
].num_requests
= count
;
807 error
->ring
[i
].requests
=
808 kcalloc(count
, sizeof(*error
->ring
[i
].requests
),
810 if (error
->ring
[i
].requests
== NULL
) {
811 error
->ring
[i
].num_requests
= 0;
816 list_for_each_entry(request
, &ring
->request_list
, list
) {
817 struct drm_i915_error_request
*erq
;
819 erq
= &error
->ring
[i
].requests
[count
++];
820 erq
->seqno
= request
->seqno
;
821 erq
->jiffies
= request
->emitted_jiffies
;
822 erq
->tail
= request
->tail
;
827 /* FIXME: Since pin count/bound list is global, we duplicate what we capture per
830 static void i915_gem_capture_vm(struct drm_i915_private
*dev_priv
,
831 struct drm_i915_error_state
*error
,
832 struct i915_address_space
*vm
,
835 struct drm_i915_error_buffer
*active_bo
= NULL
, *pinned_bo
= NULL
;
836 struct drm_i915_gem_object
*obj
;
837 struct i915_vma
*vma
;
841 list_for_each_entry(vma
, &vm
->active_list
, mm_list
)
843 error
->active_bo_count
[ndx
] = i
;
844 list_for_each_entry(obj
, &dev_priv
->mm
.bound_list
, global_list
)
847 error
->pinned_bo_count
[ndx
] = i
- error
->active_bo_count
[ndx
];
850 active_bo
= kcalloc(i
, sizeof(*active_bo
), GFP_ATOMIC
);
852 pinned_bo
= active_bo
+ error
->active_bo_count
[ndx
];
856 error
->active_bo_count
[ndx
] =
857 capture_active_bo(active_bo
,
858 error
->active_bo_count
[ndx
],
862 error
->pinned_bo_count
[ndx
] =
863 capture_pinned_bo(pinned_bo
,
864 error
->pinned_bo_count
[ndx
],
865 &dev_priv
->mm
.bound_list
);
866 error
->active_bo
[ndx
] = active_bo
;
867 error
->pinned_bo
[ndx
] = pinned_bo
;
870 static void i915_gem_capture_buffers(struct drm_i915_private
*dev_priv
,
871 struct drm_i915_error_state
*error
)
873 struct i915_address_space
*vm
;
876 list_for_each_entry(vm
, &dev_priv
->vm_list
, global_link
)
879 if (WARN(cnt
> 1, "Multiple VMs not yet supported\n"))
882 vm
= &dev_priv
->gtt
.base
;
884 error
->active_bo
= kcalloc(cnt
, sizeof(*error
->active_bo
), GFP_ATOMIC
);
885 error
->pinned_bo
= kcalloc(cnt
, sizeof(*error
->pinned_bo
), GFP_ATOMIC
);
886 error
->active_bo_count
= kcalloc(cnt
, sizeof(*error
->active_bo_count
),
888 error
->pinned_bo_count
= kcalloc(cnt
, sizeof(*error
->pinned_bo_count
),
891 list_for_each_entry(vm
, &dev_priv
->vm_list
, global_link
)
892 i915_gem_capture_vm(dev_priv
, error
, vm
, i
++);
896 * i915_capture_error_state - capture an error record for later analysis
899 * Should be called when an error is detected (either a hang or an error
900 * interrupt) to capture error state from the time of the error. Fills
901 * out a structure which becomes available in debugfs for user level tools
904 void i915_capture_error_state(struct drm_device
*dev
)
906 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
907 struct drm_i915_error_state
*error
;
911 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
912 error
= dev_priv
->gpu_error
.first_error
;
913 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
917 /* Account for pipe specific data like PIPE*STAT */
918 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
920 DRM_DEBUG_DRIVER("out of memory, not capturing error state\n");
924 DRM_INFO("GPU crash dump saved to /sys/class/drm/card%d/error\n",
925 dev
->primary
->index
);
926 DRM_INFO("GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.\n");
927 DRM_INFO("Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel\n");
928 DRM_INFO("drm/i915 developers can then reassign to the right component if it's not a kernel issue.\n");
929 DRM_INFO("The gpu crash dump is required to analyze gpu hangs, so please always attach it.\n");
931 kref_init(&error
->ref
);
932 error
->eir
= I915_READ(EIR
);
933 error
->pgtbl_er
= I915_READ(PGTBL_ER
);
934 if (HAS_HW_CONTEXTS(dev
))
935 error
->ccid
= I915_READ(CCID
);
937 if (HAS_PCH_SPLIT(dev
))
938 error
->ier
= I915_READ(DEIER
) | I915_READ(GTIER
);
939 else if (IS_VALLEYVIEW(dev
))
940 error
->ier
= I915_READ(GTIER
) | I915_READ(VLV_IER
);
941 else if (IS_GEN2(dev
))
942 error
->ier
= I915_READ16(IER
);
944 error
->ier
= I915_READ(IER
);
946 if (INTEL_INFO(dev
)->gen
>= 6)
947 error
->derrmr
= I915_READ(DERRMR
);
949 if (IS_VALLEYVIEW(dev
))
950 error
->forcewake
= I915_READ(FORCEWAKE_VLV
);
951 else if (INTEL_INFO(dev
)->gen
>= 7)
952 error
->forcewake
= I915_READ(FORCEWAKE_MT
);
953 else if (INTEL_INFO(dev
)->gen
== 6)
954 error
->forcewake
= I915_READ(FORCEWAKE
);
956 if (!HAS_PCH_SPLIT(dev
))
958 error
->pipestat
[pipe
] = I915_READ(PIPESTAT(pipe
));
960 if (INTEL_INFO(dev
)->gen
>= 6) {
961 error
->error
= I915_READ(ERROR_GEN6
);
962 error
->done_reg
= I915_READ(DONE_REG
);
965 if (INTEL_INFO(dev
)->gen
== 7)
966 error
->err_int
= I915_READ(GEN7_ERR_INT
);
968 i915_get_extra_instdone(dev
, error
->extra_instdone
);
970 i915_gem_capture_buffers(dev_priv
, error
);
971 i915_gem_record_fences(dev
, error
);
972 i915_gem_record_rings(dev
, error
);
974 do_gettimeofday(&error
->time
);
976 error
->overlay
= intel_overlay_capture_error_state(dev
);
977 error
->display
= intel_display_capture_error_state(dev
);
979 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
980 if (dev_priv
->gpu_error
.first_error
== NULL
) {
981 dev_priv
->gpu_error
.first_error
= error
;
984 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
987 i915_error_state_free(&error
->ref
);
990 void i915_error_state_get(struct drm_device
*dev
,
991 struct i915_error_state_file_priv
*error_priv
)
993 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
996 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
997 error_priv
->error
= dev_priv
->gpu_error
.first_error
;
998 if (error_priv
->error
)
999 kref_get(&error_priv
->error
->ref
);
1000 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
1004 void i915_error_state_put(struct i915_error_state_file_priv
*error_priv
)
1006 if (error_priv
->error
)
1007 kref_put(&error_priv
->error
->ref
, i915_error_state_free
);
1010 void i915_destroy_error_state(struct drm_device
*dev
)
1012 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1013 struct drm_i915_error_state
*error
;
1014 unsigned long flags
;
1016 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
1017 error
= dev_priv
->gpu_error
.first_error
;
1018 dev_priv
->gpu_error
.first_error
= NULL
;
1019 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
1022 kref_put(&error
->ref
, i915_error_state_free
);
1025 const char *i915_cache_level_str(int type
)
1028 case I915_CACHE_NONE
: return " uncached";
1029 case I915_CACHE_LLC
: return " snooped or LLC";
1030 case I915_CACHE_L3_LLC
: return " L3+LLC";
1031 case I915_CACHE_WT
: return " WT";
1036 /* NB: please notice the memset */
1037 void i915_get_extra_instdone(struct drm_device
*dev
, uint32_t *instdone
)
1039 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1040 memset(instdone
, 0, sizeof(*instdone
) * I915_NUM_INSTDONE_REG
);
1042 switch (INTEL_INFO(dev
)->gen
) {
1045 instdone
[0] = I915_READ(INSTDONE
);
1050 instdone
[0] = I915_READ(INSTDONE_I965
);
1051 instdone
[1] = I915_READ(INSTDONE1
);
1054 WARN_ONCE(1, "Unsupported platform\n");
1057 instdone
[0] = I915_READ(GEN7_INSTDONE_1
);
1058 instdone
[1] = I915_READ(GEN7_SC_INSTDONE
);
1059 instdone
[2] = I915_READ(GEN7_SAMPLER_INSTDONE
);
1060 instdone
[3] = I915_READ(GEN7_ROW_INSTDONE
);