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
) {
146 len
= vsnprintf(NULL
, 0, f
, args
);
147 if (!__i915_error_seek(e
, len
))
151 len
= vsnprintf(e
->buf
+ e
->bytes
, e
->size
- e
->bytes
, f
, args
);
152 if (len
>= e
->size
- e
->bytes
)
153 len
= e
->size
- e
->bytes
- 1;
155 __i915_error_advance(e
, len
);
158 static void i915_error_puts(struct drm_i915_error_state_buf
*e
,
163 if (!__i915_error_ok(e
))
168 /* Seek the first printf which is hits start position */
169 if (e
->pos
< e
->start
) {
170 if (!__i915_error_seek(e
, len
))
174 if (len
>= e
->size
- e
->bytes
)
175 len
= e
->size
- e
->bytes
- 1;
176 memcpy(e
->buf
+ e
->bytes
, str
, len
);
178 __i915_error_advance(e
, len
);
181 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
182 #define err_puts(e, s) i915_error_puts(e, s)
184 static void print_error_buffers(struct drm_i915_error_state_buf
*m
,
186 struct drm_i915_error_buffer
*err
,
189 err_printf(m
, "%s [%d]:\n", name
, count
);
192 err_printf(m
, " %08x %8u %02x %02x %x %x",
197 err
->rseqno
, err
->wseqno
);
198 err_puts(m
, pin_flag(err
->pinned
));
199 err_puts(m
, tiling_flag(err
->tiling
));
200 err_puts(m
, dirty_flag(err
->dirty
));
201 err_puts(m
, purgeable_flag(err
->purgeable
));
202 err_puts(m
, err
->ring
!= -1 ? " " : "");
203 err_puts(m
, ring_str(err
->ring
));
204 err_puts(m
, i915_cache_level_str(err
->cache_level
));
207 err_printf(m
, " (name: %d)", err
->name
);
208 if (err
->fence_reg
!= I915_FENCE_REG_NONE
)
209 err_printf(m
, " (fence: %d)", err
->fence_reg
);
216 static void i915_ring_error_state(struct drm_i915_error_state_buf
*m
,
217 struct drm_device
*dev
,
218 struct drm_i915_error_state
*error
,
221 BUG_ON(ring
>= I915_NUM_RINGS
); /* shut up confused gcc */
222 err_printf(m
, "%s command stream:\n", ring_str(ring
));
223 err_printf(m
, " HEAD: 0x%08x\n", error
->head
[ring
]);
224 err_printf(m
, " TAIL: 0x%08x\n", error
->tail
[ring
]);
225 err_printf(m
, " CTL: 0x%08x\n", error
->ctl
[ring
]);
226 err_printf(m
, " ACTHD: 0x%08x\n", error
->acthd
[ring
]);
227 err_printf(m
, " IPEIR: 0x%08x\n", error
->ipeir
[ring
]);
228 err_printf(m
, " IPEHR: 0x%08x\n", error
->ipehr
[ring
]);
229 err_printf(m
, " INSTDONE: 0x%08x\n", error
->instdone
[ring
]);
230 if (ring
== RCS
&& INTEL_INFO(dev
)->gen
>= 4)
231 err_printf(m
, " BBADDR: 0x%08llx\n", error
->bbaddr
);
233 if (INTEL_INFO(dev
)->gen
>= 4)
234 err_printf(m
, " INSTPS: 0x%08x\n", error
->instps
[ring
]);
235 err_printf(m
, " INSTPM: 0x%08x\n", error
->instpm
[ring
]);
236 err_printf(m
, " FADDR: 0x%08x\n", error
->faddr
[ring
]);
237 if (INTEL_INFO(dev
)->gen
>= 6) {
238 err_printf(m
, " RC PSMI: 0x%08x\n", error
->rc_psmi
[ring
]);
239 err_printf(m
, " FAULT_REG: 0x%08x\n", error
->fault_reg
[ring
]);
240 err_printf(m
, " SYNC_0: 0x%08x [last synced 0x%08x]\n",
241 error
->semaphore_mboxes
[ring
][0],
242 error
->semaphore_seqno
[ring
][0]);
243 err_printf(m
, " SYNC_1: 0x%08x [last synced 0x%08x]\n",
244 error
->semaphore_mboxes
[ring
][1],
245 error
->semaphore_seqno
[ring
][1]);
246 if (HAS_VEBOX(dev
)) {
247 err_printf(m
, " SYNC_2: 0x%08x [last synced 0x%08x]\n",
248 error
->semaphore_mboxes
[ring
][2],
249 error
->semaphore_seqno
[ring
][2]);
252 err_printf(m
, " seqno: 0x%08x\n", error
->seqno
[ring
]);
253 err_printf(m
, " waiting: %s\n", yesno(error
->waiting
[ring
]));
254 err_printf(m
, " ring->head: 0x%08x\n", error
->cpu_ring_head
[ring
]);
255 err_printf(m
, " ring->tail: 0x%08x\n", error
->cpu_ring_tail
[ring
]);
258 void i915_error_printf(struct drm_i915_error_state_buf
*e
, const char *f
, ...)
263 i915_error_vprintf(e
, f
, args
);
267 int i915_error_state_to_str(struct drm_i915_error_state_buf
*m
,
268 const struct i915_error_state_file_priv
*error_priv
)
270 struct drm_device
*dev
= error_priv
->dev
;
271 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
272 struct drm_i915_error_state
*error
= error_priv
->error
;
273 struct intel_ring_buffer
*ring
;
274 int i
, j
, page
, offset
, elt
;
277 err_printf(m
, "no error state collected\n");
281 err_printf(m
, "Time: %ld s %ld us\n", error
->time
.tv_sec
,
282 error
->time
.tv_usec
);
283 err_printf(m
, "Kernel: " UTS_RELEASE
"\n");
284 err_printf(m
, "PCI ID: 0x%04x\n", dev
->pci_device
);
285 err_printf(m
, "EIR: 0x%08x\n", error
->eir
);
286 err_printf(m
, "IER: 0x%08x\n", error
->ier
);
287 err_printf(m
, "PGTBL_ER: 0x%08x\n", error
->pgtbl_er
);
288 err_printf(m
, "FORCEWAKE: 0x%08x\n", error
->forcewake
);
289 err_printf(m
, "DERRMR: 0x%08x\n", error
->derrmr
);
290 err_printf(m
, "CCID: 0x%08x\n", error
->ccid
);
292 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++)
293 err_printf(m
, " fence[%d] = %08llx\n", i
, error
->fence
[i
]);
295 for (i
= 0; i
< ARRAY_SIZE(error
->extra_instdone
); i
++)
296 err_printf(m
, " INSTDONE_%d: 0x%08x\n", i
,
297 error
->extra_instdone
[i
]);
299 if (INTEL_INFO(dev
)->gen
>= 6) {
300 err_printf(m
, "ERROR: 0x%08x\n", error
->error
);
301 err_printf(m
, "DONE_REG: 0x%08x\n", error
->done_reg
);
304 if (INTEL_INFO(dev
)->gen
== 7)
305 err_printf(m
, "ERR_INT: 0x%08x\n", error
->err_int
);
307 for_each_ring(ring
, dev_priv
, i
)
308 i915_ring_error_state(m
, dev
, error
, i
);
310 if (error
->active_bo
)
311 print_error_buffers(m
, "Active",
313 error
->active_bo_count
[0]);
315 if (error
->pinned_bo
)
316 print_error_buffers(m
, "Pinned",
318 error
->pinned_bo_count
[0]);
320 for (i
= 0; i
< ARRAY_SIZE(error
->ring
); i
++) {
321 struct drm_i915_error_object
*obj
;
323 if ((obj
= error
->ring
[i
].batchbuffer
)) {
324 err_printf(m
, "%s --- gtt_offset = 0x%08x\n",
325 dev_priv
->ring
[i
].name
,
328 for (page
= 0; page
< obj
->page_count
; page
++) {
329 for (elt
= 0; elt
< PAGE_SIZE
/4; elt
++) {
330 err_printf(m
, "%08x : %08x\n", offset
,
331 obj
->pages
[page
][elt
]);
337 if (error
->ring
[i
].num_requests
) {
338 err_printf(m
, "%s --- %d requests\n",
339 dev_priv
->ring
[i
].name
,
340 error
->ring
[i
].num_requests
);
341 for (j
= 0; j
< error
->ring
[i
].num_requests
; j
++) {
342 err_printf(m
, " seqno 0x%08x, emitted %ld, tail 0x%08x\n",
343 error
->ring
[i
].requests
[j
].seqno
,
344 error
->ring
[i
].requests
[j
].jiffies
,
345 error
->ring
[i
].requests
[j
].tail
);
349 if ((obj
= error
->ring
[i
].ringbuffer
)) {
350 err_printf(m
, "%s --- ringbuffer = 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",
358 obj
->pages
[page
][elt
]);
364 obj
= error
->ring
[i
].ctx
;
366 err_printf(m
, "%s --- HW Context = 0x%08x\n",
367 dev_priv
->ring
[i
].name
,
370 for (elt
= 0; elt
< PAGE_SIZE
/16; elt
+= 4) {
371 err_printf(m
, "[%04x] %08x %08x %08x %08x\n",
374 obj
->pages
[0][elt
+1],
375 obj
->pages
[0][elt
+2],
376 obj
->pages
[0][elt
+3]);
383 intel_overlay_print_error_state(m
, error
->overlay
);
386 intel_display_print_error_state(m
, dev
, error
->display
);
389 if (m
->bytes
== 0 && m
->err
)
395 int i915_error_state_buf_init(struct drm_i915_error_state_buf
*ebuf
,
396 size_t count
, loff_t pos
)
398 memset(ebuf
, 0, sizeof(*ebuf
));
400 /* We need to have enough room to store any i915_error_state printf
401 * so that we can move it to start position.
403 ebuf
->size
= count
+ 1 > PAGE_SIZE
? count
+ 1 : PAGE_SIZE
;
404 ebuf
->buf
= kmalloc(ebuf
->size
,
405 GFP_TEMPORARY
| __GFP_NORETRY
| __GFP_NOWARN
);
407 if (ebuf
->buf
== NULL
) {
408 ebuf
->size
= PAGE_SIZE
;
409 ebuf
->buf
= kmalloc(ebuf
->size
, GFP_TEMPORARY
);
412 if (ebuf
->buf
== NULL
) {
414 ebuf
->buf
= kmalloc(ebuf
->size
, GFP_TEMPORARY
);
417 if (ebuf
->buf
== NULL
)
425 static void i915_error_object_free(struct drm_i915_error_object
*obj
)
432 for (page
= 0; page
< obj
->page_count
; page
++)
433 kfree(obj
->pages
[page
]);
438 static void i915_error_state_free(struct kref
*error_ref
)
440 struct drm_i915_error_state
*error
= container_of(error_ref
,
441 typeof(*error
), ref
);
444 for (i
= 0; i
< ARRAY_SIZE(error
->ring
); i
++) {
445 i915_error_object_free(error
->ring
[i
].batchbuffer
);
446 i915_error_object_free(error
->ring
[i
].ringbuffer
);
447 i915_error_object_free(error
->ring
[i
].ctx
);
448 kfree(error
->ring
[i
].requests
);
451 kfree(error
->active_bo
);
452 kfree(error
->overlay
);
453 kfree(error
->display
);
457 static struct drm_i915_error_object
*
458 i915_error_object_create_sized(struct drm_i915_private
*dev_priv
,
459 struct drm_i915_gem_object
*src
,
462 struct drm_i915_error_object
*dst
;
466 if (src
== NULL
|| src
->pages
== NULL
)
469 dst
= kmalloc(sizeof(*dst
) + num_pages
* sizeof(u32
*), GFP_ATOMIC
);
473 reloc_offset
= dst
->gtt_offset
= i915_gem_obj_ggtt_offset(src
);
474 for (i
= 0; i
< num_pages
; i
++) {
478 d
= kmalloc(PAGE_SIZE
, GFP_ATOMIC
);
482 local_irq_save(flags
);
483 if (reloc_offset
< dev_priv
->gtt
.mappable_end
&&
484 src
->has_global_gtt_mapping
) {
487 /* Simply ignore tiling or any overlapping fence.
488 * It's part of the error state, and this hopefully
489 * captures what the GPU read.
492 s
= io_mapping_map_atomic_wc(dev_priv
->gtt
.mappable
,
494 memcpy_fromio(d
, s
, PAGE_SIZE
);
495 io_mapping_unmap_atomic(s
);
496 } else if (src
->stolen
) {
497 unsigned long offset
;
499 offset
= dev_priv
->mm
.stolen_base
;
500 offset
+= src
->stolen
->start
;
501 offset
+= i
<< PAGE_SHIFT
;
503 memcpy_fromio(d
, (void __iomem
*) offset
, PAGE_SIZE
);
508 page
= i915_gem_object_get_page(src
, i
);
510 drm_clflush_pages(&page
, 1);
512 s
= kmap_atomic(page
);
513 memcpy(d
, s
, PAGE_SIZE
);
516 drm_clflush_pages(&page
, 1);
518 local_irq_restore(flags
);
522 reloc_offset
+= PAGE_SIZE
;
524 dst
->page_count
= num_pages
;
530 kfree(dst
->pages
[i
]);
534 #define i915_error_object_create(dev_priv, src) \
535 i915_error_object_create_sized((dev_priv), (src), \
536 (src)->base.size>>PAGE_SHIFT)
538 static void capture_bo(struct drm_i915_error_buffer
*err
,
539 struct drm_i915_gem_object
*obj
)
541 err
->size
= obj
->base
.size
;
542 err
->name
= obj
->base
.name
;
543 err
->rseqno
= obj
->last_read_seqno
;
544 err
->wseqno
= obj
->last_write_seqno
;
545 err
->gtt_offset
= i915_gem_obj_ggtt_offset(obj
);
546 err
->read_domains
= obj
->base
.read_domains
;
547 err
->write_domain
= obj
->base
.write_domain
;
548 err
->fence_reg
= obj
->fence_reg
;
550 if (obj
->pin_count
> 0)
552 if (obj
->user_pin_count
> 0)
554 err
->tiling
= obj
->tiling_mode
;
555 err
->dirty
= obj
->dirty
;
556 err
->purgeable
= obj
->madv
!= I915_MADV_WILLNEED
;
557 err
->ring
= obj
->ring
? obj
->ring
->id
: -1;
558 err
->cache_level
= obj
->cache_level
;
561 static u32
capture_active_bo(struct drm_i915_error_buffer
*err
,
562 int count
, struct list_head
*head
)
564 struct i915_vma
*vma
;
567 list_for_each_entry(vma
, head
, mm_list
) {
568 capture_bo(err
++, vma
->obj
);
576 static u32
capture_pinned_bo(struct drm_i915_error_buffer
*err
,
577 int count
, struct list_head
*head
)
579 struct drm_i915_gem_object
*obj
;
582 list_for_each_entry(obj
, head
, global_list
) {
583 if (obj
->pin_count
== 0)
586 capture_bo(err
++, obj
);
594 static void i915_gem_record_fences(struct drm_device
*dev
,
595 struct drm_i915_error_state
*error
)
597 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
601 switch (INTEL_INFO(dev
)->gen
) {
604 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++)
605 error
->fence
[i
] = I915_READ64(FENCE_REG_SANDYBRIDGE_0
+ (i
* 8));
609 for (i
= 0; i
< 16; i
++)
610 error
->fence
[i
] = I915_READ64(FENCE_REG_965_0
+ (i
* 8));
613 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
))
614 for (i
= 0; i
< 8; i
++)
615 error
->fence
[i
+8] = I915_READ(FENCE_REG_945_8
+ (i
* 4));
617 for (i
= 0; i
< 8; i
++)
618 error
->fence
[i
] = I915_READ(FENCE_REG_830_0
+ (i
* 4));
626 static struct drm_i915_error_object
*
627 i915_error_first_batchbuffer(struct drm_i915_private
*dev_priv
,
628 struct intel_ring_buffer
*ring
)
630 struct i915_address_space
*vm
;
631 struct i915_vma
*vma
;
632 struct drm_i915_gem_object
*obj
;
635 if (!ring
->get_seqno
)
638 if (HAS_BROKEN_CS_TLB(dev_priv
->dev
)) {
639 u32 acthd
= I915_READ(ACTHD
);
641 if (WARN_ON(ring
->id
!= RCS
))
644 obj
= ring
->scratch
.obj
;
645 if (acthd
>= i915_gem_obj_ggtt_offset(obj
) &&
646 acthd
< i915_gem_obj_ggtt_offset(obj
) + obj
->base
.size
)
647 return i915_error_object_create(dev_priv
, obj
);
650 seqno
= ring
->get_seqno(ring
, false);
651 list_for_each_entry(vm
, &dev_priv
->vm_list
, global_link
) {
652 list_for_each_entry(vma
, &vm
->active_list
, mm_list
) {
654 if (obj
->ring
!= ring
)
657 if (i915_seqno_passed(seqno
, obj
->last_read_seqno
))
660 if ((obj
->base
.read_domains
& I915_GEM_DOMAIN_COMMAND
) == 0)
663 /* We need to copy these to an anonymous buffer as the simplest
664 * method to avoid being overwritten by userspace.
666 return i915_error_object_create(dev_priv
, obj
);
673 static void i915_record_ring_state(struct drm_device
*dev
,
674 struct drm_i915_error_state
*error
,
675 struct intel_ring_buffer
*ring
)
677 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
679 if (INTEL_INFO(dev
)->gen
>= 6) {
680 error
->rc_psmi
[ring
->id
] = I915_READ(ring
->mmio_base
+ 0x50);
681 error
->fault_reg
[ring
->id
] = I915_READ(RING_FAULT_REG(ring
));
682 error
->semaphore_mboxes
[ring
->id
][0]
683 = I915_READ(RING_SYNC_0(ring
->mmio_base
));
684 error
->semaphore_mboxes
[ring
->id
][1]
685 = I915_READ(RING_SYNC_1(ring
->mmio_base
));
686 error
->semaphore_seqno
[ring
->id
][0] = ring
->sync_seqno
[0];
687 error
->semaphore_seqno
[ring
->id
][1] = ring
->sync_seqno
[1];
690 if (HAS_VEBOX(dev
)) {
691 error
->semaphore_mboxes
[ring
->id
][2] =
692 I915_READ(RING_SYNC_2(ring
->mmio_base
));
693 error
->semaphore_seqno
[ring
->id
][2] = ring
->sync_seqno
[2];
696 if (INTEL_INFO(dev
)->gen
>= 4) {
697 error
->faddr
[ring
->id
] = I915_READ(RING_DMA_FADD(ring
->mmio_base
));
698 error
->ipeir
[ring
->id
] = I915_READ(RING_IPEIR(ring
->mmio_base
));
699 error
->ipehr
[ring
->id
] = I915_READ(RING_IPEHR(ring
->mmio_base
));
700 error
->instdone
[ring
->id
] = I915_READ(RING_INSTDONE(ring
->mmio_base
));
701 error
->instps
[ring
->id
] = I915_READ(RING_INSTPS(ring
->mmio_base
));
703 error
->bbaddr
= I915_READ64(BB_ADDR
);
705 error
->faddr
[ring
->id
] = I915_READ(DMA_FADD_I8XX
);
706 error
->ipeir
[ring
->id
] = I915_READ(IPEIR
);
707 error
->ipehr
[ring
->id
] = I915_READ(IPEHR
);
708 error
->instdone
[ring
->id
] = I915_READ(INSTDONE
);
711 error
->waiting
[ring
->id
] = waitqueue_active(&ring
->irq_queue
);
712 error
->instpm
[ring
->id
] = I915_READ(RING_INSTPM(ring
->mmio_base
));
713 error
->seqno
[ring
->id
] = ring
->get_seqno(ring
, false);
714 error
->acthd
[ring
->id
] = intel_ring_get_active_head(ring
);
715 error
->head
[ring
->id
] = I915_READ_HEAD(ring
);
716 error
->tail
[ring
->id
] = I915_READ_TAIL(ring
);
717 error
->ctl
[ring
->id
] = I915_READ_CTL(ring
);
719 error
->cpu_ring_head
[ring
->id
] = ring
->head
;
720 error
->cpu_ring_tail
[ring
->id
] = ring
->tail
;
724 static void i915_gem_record_active_context(struct intel_ring_buffer
*ring
,
725 struct drm_i915_error_state
*error
,
726 struct drm_i915_error_ring
*ering
)
728 struct drm_i915_private
*dev_priv
= ring
->dev
->dev_private
;
729 struct drm_i915_gem_object
*obj
;
731 /* Currently render ring is the only HW context user */
732 if (ring
->id
!= RCS
|| !error
->ccid
)
735 list_for_each_entry(obj
, &dev_priv
->mm
.bound_list
, global_list
) {
736 if ((error
->ccid
& PAGE_MASK
) == i915_gem_obj_ggtt_offset(obj
)) {
737 ering
->ctx
= i915_error_object_create_sized(dev_priv
,
744 static void i915_gem_record_rings(struct drm_device
*dev
,
745 struct drm_i915_error_state
*error
)
747 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
748 struct intel_ring_buffer
*ring
;
749 struct drm_i915_gem_request
*request
;
752 for_each_ring(ring
, dev_priv
, i
) {
753 i915_record_ring_state(dev
, error
, ring
);
755 error
->ring
[i
].batchbuffer
=
756 i915_error_first_batchbuffer(dev_priv
, ring
);
758 error
->ring
[i
].ringbuffer
=
759 i915_error_object_create(dev_priv
, ring
->obj
);
762 i915_gem_record_active_context(ring
, error
, &error
->ring
[i
]);
765 list_for_each_entry(request
, &ring
->request_list
, list
)
768 error
->ring
[i
].num_requests
= count
;
769 error
->ring
[i
].requests
=
770 kmalloc(count
*sizeof(struct drm_i915_error_request
),
772 if (error
->ring
[i
].requests
== NULL
) {
773 error
->ring
[i
].num_requests
= 0;
778 list_for_each_entry(request
, &ring
->request_list
, list
) {
779 struct drm_i915_error_request
*erq
;
781 erq
= &error
->ring
[i
].requests
[count
++];
782 erq
->seqno
= request
->seqno
;
783 erq
->jiffies
= request
->emitted_jiffies
;
784 erq
->tail
= request
->tail
;
789 /* FIXME: Since pin count/bound list is global, we duplicate what we capture per
792 static void i915_gem_capture_vm(struct drm_i915_private
*dev_priv
,
793 struct drm_i915_error_state
*error
,
794 struct i915_address_space
*vm
,
797 struct drm_i915_error_buffer
*active_bo
= NULL
, *pinned_bo
= NULL
;
798 struct drm_i915_gem_object
*obj
;
799 struct i915_vma
*vma
;
803 list_for_each_entry(vma
, &vm
->active_list
, mm_list
)
805 error
->active_bo_count
[ndx
] = i
;
806 list_for_each_entry(obj
, &dev_priv
->mm
.bound_list
, global_list
)
809 error
->pinned_bo_count
[ndx
] = i
- error
->active_bo_count
[ndx
];
812 active_bo
= kmalloc(sizeof(*active_bo
)*i
, GFP_ATOMIC
);
814 pinned_bo
= active_bo
+ error
->active_bo_count
[ndx
];
818 error
->active_bo_count
[ndx
] =
819 capture_active_bo(active_bo
,
820 error
->active_bo_count
[ndx
],
824 error
->pinned_bo_count
[ndx
] =
825 capture_pinned_bo(pinned_bo
,
826 error
->pinned_bo_count
[ndx
],
827 &dev_priv
->mm
.bound_list
);
828 error
->active_bo
[ndx
] = active_bo
;
829 error
->pinned_bo
[ndx
] = pinned_bo
;
832 static void i915_gem_capture_buffers(struct drm_i915_private
*dev_priv
,
833 struct drm_i915_error_state
*error
)
835 struct i915_address_space
*vm
;
838 list_for_each_entry(vm
, &dev_priv
->vm_list
, global_link
)
841 if (WARN(cnt
> 1, "Multiple VMs not yet supported\n"))
844 vm
= &dev_priv
->gtt
.base
;
846 error
->active_bo
= kcalloc(cnt
, sizeof(*error
->active_bo
), GFP_ATOMIC
);
847 error
->pinned_bo
= kcalloc(cnt
, sizeof(*error
->pinned_bo
), GFP_ATOMIC
);
848 error
->active_bo_count
= kcalloc(cnt
, sizeof(*error
->active_bo_count
),
850 error
->pinned_bo_count
= kcalloc(cnt
, sizeof(*error
->pinned_bo_count
),
853 list_for_each_entry(vm
, &dev_priv
->vm_list
, global_link
)
854 i915_gem_capture_vm(dev_priv
, error
, vm
, i
++);
858 * i915_capture_error_state - capture an error record for later analysis
861 * Should be called when an error is detected (either a hang or an error
862 * interrupt) to capture error state from the time of the error. Fills
863 * out a structure which becomes available in debugfs for user level tools
866 void i915_capture_error_state(struct drm_device
*dev
)
868 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
869 struct drm_i915_error_state
*error
;
873 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
874 error
= dev_priv
->gpu_error
.first_error
;
875 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
879 /* Account for pipe specific data like PIPE*STAT */
880 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
882 DRM_DEBUG_DRIVER("out of memory, not capturing error state\n");
886 DRM_INFO("capturing error event; look for more information in "
887 "/sys/class/drm/card%d/error\n", dev
->primary
->index
);
889 kref_init(&error
->ref
);
890 error
->eir
= I915_READ(EIR
);
891 error
->pgtbl_er
= I915_READ(PGTBL_ER
);
892 if (HAS_HW_CONTEXTS(dev
))
893 error
->ccid
= I915_READ(CCID
);
895 if (HAS_PCH_SPLIT(dev
))
896 error
->ier
= I915_READ(DEIER
) | I915_READ(GTIER
);
897 else if (IS_VALLEYVIEW(dev
))
898 error
->ier
= I915_READ(GTIER
) | I915_READ(VLV_IER
);
899 else if (IS_GEN2(dev
))
900 error
->ier
= I915_READ16(IER
);
902 error
->ier
= I915_READ(IER
);
904 if (INTEL_INFO(dev
)->gen
>= 6)
905 error
->derrmr
= I915_READ(DERRMR
);
907 if (IS_VALLEYVIEW(dev
))
908 error
->forcewake
= I915_READ(FORCEWAKE_VLV
);
909 else if (INTEL_INFO(dev
)->gen
>= 7)
910 error
->forcewake
= I915_READ(FORCEWAKE_MT
);
911 else if (INTEL_INFO(dev
)->gen
== 6)
912 error
->forcewake
= I915_READ(FORCEWAKE
);
914 if (!HAS_PCH_SPLIT(dev
))
916 error
->pipestat
[pipe
] = I915_READ(PIPESTAT(pipe
));
918 if (INTEL_INFO(dev
)->gen
>= 6) {
919 error
->error
= I915_READ(ERROR_GEN6
);
920 error
->done_reg
= I915_READ(DONE_REG
);
923 if (INTEL_INFO(dev
)->gen
== 7)
924 error
->err_int
= I915_READ(GEN7_ERR_INT
);
926 i915_get_extra_instdone(dev
, error
->extra_instdone
);
928 i915_gem_capture_buffers(dev_priv
, error
);
929 i915_gem_record_fences(dev
, error
);
930 i915_gem_record_rings(dev
, error
);
932 do_gettimeofday(&error
->time
);
934 error
->overlay
= intel_overlay_capture_error_state(dev
);
935 error
->display
= intel_display_capture_error_state(dev
);
937 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
938 if (dev_priv
->gpu_error
.first_error
== NULL
) {
939 dev_priv
->gpu_error
.first_error
= error
;
942 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
945 i915_error_state_free(&error
->ref
);
948 void i915_error_state_get(struct drm_device
*dev
,
949 struct i915_error_state_file_priv
*error_priv
)
951 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
954 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
955 error_priv
->error
= dev_priv
->gpu_error
.first_error
;
956 if (error_priv
->error
)
957 kref_get(&error_priv
->error
->ref
);
958 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
962 void i915_error_state_put(struct i915_error_state_file_priv
*error_priv
)
964 if (error_priv
->error
)
965 kref_put(&error_priv
->error
->ref
, i915_error_state_free
);
968 void i915_destroy_error_state(struct drm_device
*dev
)
970 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
971 struct drm_i915_error_state
*error
;
974 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
975 error
= dev_priv
->gpu_error
.first_error
;
976 dev_priv
->gpu_error
.first_error
= NULL
;
977 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
980 kref_put(&error
->ref
, i915_error_state_free
);
983 const char *i915_cache_level_str(int type
)
986 case I915_CACHE_NONE
: return " uncached";
987 case I915_CACHE_LLC
: return " snooped or LLC";
988 case I915_CACHE_L3_LLC
: return " L3+LLC";
993 /* NB: please notice the memset */
994 void i915_get_extra_instdone(struct drm_device
*dev
, uint32_t *instdone
)
996 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
997 memset(instdone
, 0, sizeof(*instdone
) * I915_NUM_INSTDONE_REG
);
999 switch (INTEL_INFO(dev
)->gen
) {
1002 instdone
[0] = I915_READ(INSTDONE
);
1007 instdone
[0] = I915_READ(INSTDONE_I965
);
1008 instdone
[1] = I915_READ(INSTDONE1
);
1011 WARN_ONCE(1, "Unsupported platform\n");
1013 instdone
[0] = I915_READ(GEN7_INSTDONE_1
);
1014 instdone
[1] = I915_READ(GEN7_SC_INSTDONE
);
1015 instdone
[2] = I915_READ(GEN7_SAMPLER_INSTDONE
);
1016 instdone
[3] = I915_READ(GEN7_ROW_INSTDONE
);