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]);
247 err_printf(m
, " seqno: 0x%08x\n", error
->seqno
[ring
]);
248 err_printf(m
, " waiting: %s\n", yesno(error
->waiting
[ring
]));
249 err_printf(m
, " ring->head: 0x%08x\n", error
->cpu_ring_head
[ring
]);
250 err_printf(m
, " ring->tail: 0x%08x\n", error
->cpu_ring_tail
[ring
]);
253 void i915_error_printf(struct drm_i915_error_state_buf
*e
, const char *f
, ...)
258 i915_error_vprintf(e
, f
, args
);
262 int i915_error_state_to_str(struct drm_i915_error_state_buf
*m
,
263 const struct i915_error_state_file_priv
*error_priv
)
265 struct drm_device
*dev
= error_priv
->dev
;
266 drm_i915_private_t
*dev_priv
= dev
->dev_private
;
267 struct drm_i915_error_state
*error
= error_priv
->error
;
268 struct intel_ring_buffer
*ring
;
269 int i
, j
, page
, offset
, elt
;
272 err_printf(m
, "no error state collected\n");
276 err_printf(m
, "Time: %ld s %ld us\n", error
->time
.tv_sec
,
277 error
->time
.tv_usec
);
278 err_printf(m
, "Kernel: " UTS_RELEASE
"\n");
279 err_printf(m
, "PCI ID: 0x%04x\n", dev
->pci_device
);
280 err_printf(m
, "EIR: 0x%08x\n", error
->eir
);
281 err_printf(m
, "IER: 0x%08x\n", error
->ier
);
282 err_printf(m
, "PGTBL_ER: 0x%08x\n", error
->pgtbl_er
);
283 err_printf(m
, "FORCEWAKE: 0x%08x\n", error
->forcewake
);
284 err_printf(m
, "DERRMR: 0x%08x\n", error
->derrmr
);
285 err_printf(m
, "CCID: 0x%08x\n", error
->ccid
);
287 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++)
288 err_printf(m
, " fence[%d] = %08llx\n", i
, error
->fence
[i
]);
290 for (i
= 0; i
< ARRAY_SIZE(error
->extra_instdone
); i
++)
291 err_printf(m
, " INSTDONE_%d: 0x%08x\n", i
,
292 error
->extra_instdone
[i
]);
294 if (INTEL_INFO(dev
)->gen
>= 6) {
295 err_printf(m
, "ERROR: 0x%08x\n", error
->error
);
296 err_printf(m
, "DONE_REG: 0x%08x\n", error
->done_reg
);
299 if (INTEL_INFO(dev
)->gen
== 7)
300 err_printf(m
, "ERR_INT: 0x%08x\n", error
->err_int
);
302 for_each_ring(ring
, dev_priv
, i
)
303 i915_ring_error_state(m
, dev
, error
, i
);
305 if (error
->active_bo
)
306 print_error_buffers(m
, "Active",
308 error
->active_bo_count
);
310 if (error
->pinned_bo
)
311 print_error_buffers(m
, "Pinned",
313 error
->pinned_bo_count
);
315 for (i
= 0; i
< ARRAY_SIZE(error
->ring
); i
++) {
316 struct drm_i915_error_object
*obj
;
318 if ((obj
= error
->ring
[i
].batchbuffer
)) {
319 err_printf(m
, "%s --- gtt_offset = 0x%08x\n",
320 dev_priv
->ring
[i
].name
,
323 for (page
= 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
]);
332 if (error
->ring
[i
].num_requests
) {
333 err_printf(m
, "%s --- %d requests\n",
334 dev_priv
->ring
[i
].name
,
335 error
->ring
[i
].num_requests
);
336 for (j
= 0; j
< error
->ring
[i
].num_requests
; j
++) {
337 err_printf(m
, " seqno 0x%08x, emitted %ld, tail 0x%08x\n",
338 error
->ring
[i
].requests
[j
].seqno
,
339 error
->ring
[i
].requests
[j
].jiffies
,
340 error
->ring
[i
].requests
[j
].tail
);
344 if ((obj
= error
->ring
[i
].ringbuffer
)) {
345 err_printf(m
, "%s --- ringbuffer = 0x%08x\n",
346 dev_priv
->ring
[i
].name
,
349 for (page
= 0; page
< obj
->page_count
; page
++) {
350 for (elt
= 0; elt
< PAGE_SIZE
/4; elt
++) {
351 err_printf(m
, "%08x : %08x\n",
353 obj
->pages
[page
][elt
]);
359 obj
= error
->ring
[i
].ctx
;
361 err_printf(m
, "%s --- HW Context = 0x%08x\n",
362 dev_priv
->ring
[i
].name
,
365 for (elt
= 0; elt
< PAGE_SIZE
/16; elt
+= 4) {
366 err_printf(m
, "[%04x] %08x %08x %08x %08x\n",
369 obj
->pages
[0][elt
+1],
370 obj
->pages
[0][elt
+2],
371 obj
->pages
[0][elt
+3]);
378 intel_overlay_print_error_state(m
, error
->overlay
);
381 intel_display_print_error_state(m
, dev
, error
->display
);
384 if (m
->bytes
== 0 && m
->err
)
390 int i915_error_state_buf_init(struct drm_i915_error_state_buf
*ebuf
,
391 size_t count
, loff_t pos
)
393 memset(ebuf
, 0, sizeof(*ebuf
));
395 /* We need to have enough room to store any i915_error_state printf
396 * so that we can move it to start position.
398 ebuf
->size
= count
+ 1 > PAGE_SIZE
? count
+ 1 : PAGE_SIZE
;
399 ebuf
->buf
= kmalloc(ebuf
->size
,
400 GFP_TEMPORARY
| __GFP_NORETRY
| __GFP_NOWARN
);
402 if (ebuf
->buf
== NULL
) {
403 ebuf
->size
= PAGE_SIZE
;
404 ebuf
->buf
= kmalloc(ebuf
->size
, GFP_TEMPORARY
);
407 if (ebuf
->buf
== NULL
) {
409 ebuf
->buf
= kmalloc(ebuf
->size
, GFP_TEMPORARY
);
412 if (ebuf
->buf
== NULL
)
420 static void i915_error_object_free(struct drm_i915_error_object
*obj
)
427 for (page
= 0; page
< obj
->page_count
; page
++)
428 kfree(obj
->pages
[page
]);
433 static void i915_error_state_free(struct kref
*error_ref
)
435 struct drm_i915_error_state
*error
= container_of(error_ref
,
436 typeof(*error
), ref
);
439 for (i
= 0; i
< ARRAY_SIZE(error
->ring
); i
++) {
440 i915_error_object_free(error
->ring
[i
].batchbuffer
);
441 i915_error_object_free(error
->ring
[i
].ringbuffer
);
442 i915_error_object_free(error
->ring
[i
].ctx
);
443 kfree(error
->ring
[i
].requests
);
446 kfree(error
->active_bo
);
447 kfree(error
->overlay
);
448 kfree(error
->display
);
452 static struct drm_i915_error_object
*
453 i915_error_object_create_sized(struct drm_i915_private
*dev_priv
,
454 struct drm_i915_gem_object
*src
,
457 struct drm_i915_error_object
*dst
;
461 if (src
== NULL
|| src
->pages
== NULL
)
464 dst
= kmalloc(sizeof(*dst
) + num_pages
* sizeof(u32
*), GFP_ATOMIC
);
468 reloc_offset
= dst
->gtt_offset
= i915_gem_obj_ggtt_offset(src
);
469 for (i
= 0; i
< num_pages
; i
++) {
473 d
= kmalloc(PAGE_SIZE
, GFP_ATOMIC
);
477 local_irq_save(flags
);
478 if (reloc_offset
< dev_priv
->gtt
.mappable_end
&&
479 src
->has_global_gtt_mapping
) {
482 /* Simply ignore tiling or any overlapping fence.
483 * It's part of the error state, and this hopefully
484 * captures what the GPU read.
487 s
= io_mapping_map_atomic_wc(dev_priv
->gtt
.mappable
,
489 memcpy_fromio(d
, s
, PAGE_SIZE
);
490 io_mapping_unmap_atomic(s
);
491 } else if (src
->stolen
) {
492 unsigned long offset
;
494 offset
= dev_priv
->mm
.stolen_base
;
495 offset
+= src
->stolen
->start
;
496 offset
+= i
<< PAGE_SHIFT
;
498 memcpy_fromio(d
, (void __iomem
*) offset
, PAGE_SIZE
);
503 page
= i915_gem_object_get_page(src
, i
);
505 drm_clflush_pages(&page
, 1);
507 s
= kmap_atomic(page
);
508 memcpy(d
, s
, PAGE_SIZE
);
511 drm_clflush_pages(&page
, 1);
513 local_irq_restore(flags
);
517 reloc_offset
+= PAGE_SIZE
;
519 dst
->page_count
= num_pages
;
525 kfree(dst
->pages
[i
]);
529 #define i915_error_object_create(dev_priv, src) \
530 i915_error_object_create_sized((dev_priv), (src), \
531 (src)->base.size>>PAGE_SHIFT)
533 static void capture_bo(struct drm_i915_error_buffer
*err
,
534 struct drm_i915_gem_object
*obj
)
536 err
->size
= obj
->base
.size
;
537 err
->name
= obj
->base
.name
;
538 err
->rseqno
= obj
->last_read_seqno
;
539 err
->wseqno
= obj
->last_write_seqno
;
540 err
->gtt_offset
= i915_gem_obj_ggtt_offset(obj
);
541 err
->read_domains
= obj
->base
.read_domains
;
542 err
->write_domain
= obj
->base
.write_domain
;
543 err
->fence_reg
= obj
->fence_reg
;
545 if (obj
->pin_count
> 0)
547 if (obj
->user_pin_count
> 0)
549 err
->tiling
= obj
->tiling_mode
;
550 err
->dirty
= obj
->dirty
;
551 err
->purgeable
= obj
->madv
!= I915_MADV_WILLNEED
;
552 err
->ring
= obj
->ring
? obj
->ring
->id
: -1;
553 err
->cache_level
= obj
->cache_level
;
556 static u32
capture_active_bo(struct drm_i915_error_buffer
*err
,
557 int count
, struct list_head
*head
)
559 struct drm_i915_gem_object
*obj
;
562 list_for_each_entry(obj
, head
, mm_list
) {
563 capture_bo(err
++, obj
);
571 static u32
capture_pinned_bo(struct drm_i915_error_buffer
*err
,
572 int count
, struct list_head
*head
)
574 struct drm_i915_gem_object
*obj
;
577 list_for_each_entry(obj
, head
, global_list
) {
578 if (obj
->pin_count
== 0)
581 capture_bo(err
++, obj
);
589 static void i915_gem_record_fences(struct drm_device
*dev
,
590 struct drm_i915_error_state
*error
)
592 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
596 switch (INTEL_INFO(dev
)->gen
) {
599 for (i
= 0; i
< dev_priv
->num_fence_regs
; i
++)
600 error
->fence
[i
] = I915_READ64(FENCE_REG_SANDYBRIDGE_0
+ (i
* 8));
604 for (i
= 0; i
< 16; i
++)
605 error
->fence
[i
] = I915_READ64(FENCE_REG_965_0
+ (i
* 8));
608 if (IS_I945G(dev
) || IS_I945GM(dev
) || IS_G33(dev
))
609 for (i
= 0; i
< 8; i
++)
610 error
->fence
[i
+8] = I915_READ(FENCE_REG_945_8
+ (i
* 4));
612 for (i
= 0; i
< 8; i
++)
613 error
->fence
[i
] = I915_READ(FENCE_REG_830_0
+ (i
* 4));
621 static struct drm_i915_error_object
*
622 i915_error_first_batchbuffer(struct drm_i915_private
*dev_priv
,
623 struct intel_ring_buffer
*ring
)
625 struct drm_i915_gem_object
*obj
;
628 if (!ring
->get_seqno
)
631 if (HAS_BROKEN_CS_TLB(dev_priv
->dev
)) {
632 u32 acthd
= I915_READ(ACTHD
);
634 if (WARN_ON(ring
->id
!= RCS
))
638 if (acthd
>= i915_gem_obj_ggtt_offset(obj
) &&
639 acthd
< i915_gem_obj_ggtt_offset(obj
) + obj
->base
.size
)
640 return i915_error_object_create(dev_priv
, obj
);
643 seqno
= ring
->get_seqno(ring
, false);
644 list_for_each_entry(obj
, &dev_priv
->mm
.active_list
, mm_list
) {
645 if (obj
->ring
!= ring
)
648 if (i915_seqno_passed(seqno
, obj
->last_read_seqno
))
651 if ((obj
->base
.read_domains
& I915_GEM_DOMAIN_COMMAND
) == 0)
654 /* We need to copy these to an anonymous buffer as the simplest
655 * method to avoid being overwritten by userspace.
657 return i915_error_object_create(dev_priv
, obj
);
663 static void i915_record_ring_state(struct drm_device
*dev
,
664 struct drm_i915_error_state
*error
,
665 struct intel_ring_buffer
*ring
)
667 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
669 if (INTEL_INFO(dev
)->gen
>= 6) {
670 error
->rc_psmi
[ring
->id
] = I915_READ(ring
->mmio_base
+ 0x50);
671 error
->fault_reg
[ring
->id
] = I915_READ(RING_FAULT_REG(ring
));
672 error
->semaphore_mboxes
[ring
->id
][0]
673 = I915_READ(RING_SYNC_0(ring
->mmio_base
));
674 error
->semaphore_mboxes
[ring
->id
][1]
675 = I915_READ(RING_SYNC_1(ring
->mmio_base
));
676 error
->semaphore_seqno
[ring
->id
][0] = ring
->sync_seqno
[0];
677 error
->semaphore_seqno
[ring
->id
][1] = ring
->sync_seqno
[1];
680 if (INTEL_INFO(dev
)->gen
>= 4) {
681 error
->faddr
[ring
->id
] = I915_READ(RING_DMA_FADD(ring
->mmio_base
));
682 error
->ipeir
[ring
->id
] = I915_READ(RING_IPEIR(ring
->mmio_base
));
683 error
->ipehr
[ring
->id
] = I915_READ(RING_IPEHR(ring
->mmio_base
));
684 error
->instdone
[ring
->id
] = I915_READ(RING_INSTDONE(ring
->mmio_base
));
685 error
->instps
[ring
->id
] = I915_READ(RING_INSTPS(ring
->mmio_base
));
687 error
->bbaddr
= I915_READ64(BB_ADDR
);
689 error
->faddr
[ring
->id
] = I915_READ(DMA_FADD_I8XX
);
690 error
->ipeir
[ring
->id
] = I915_READ(IPEIR
);
691 error
->ipehr
[ring
->id
] = I915_READ(IPEHR
);
692 error
->instdone
[ring
->id
] = I915_READ(INSTDONE
);
695 error
->waiting
[ring
->id
] = waitqueue_active(&ring
->irq_queue
);
696 error
->instpm
[ring
->id
] = I915_READ(RING_INSTPM(ring
->mmio_base
));
697 error
->seqno
[ring
->id
] = ring
->get_seqno(ring
, false);
698 error
->acthd
[ring
->id
] = intel_ring_get_active_head(ring
);
699 error
->head
[ring
->id
] = I915_READ_HEAD(ring
);
700 error
->tail
[ring
->id
] = I915_READ_TAIL(ring
);
701 error
->ctl
[ring
->id
] = I915_READ_CTL(ring
);
703 error
->cpu_ring_head
[ring
->id
] = ring
->head
;
704 error
->cpu_ring_tail
[ring
->id
] = ring
->tail
;
708 static void i915_gem_record_active_context(struct intel_ring_buffer
*ring
,
709 struct drm_i915_error_state
*error
,
710 struct drm_i915_error_ring
*ering
)
712 struct drm_i915_private
*dev_priv
= ring
->dev
->dev_private
;
713 struct drm_i915_gem_object
*obj
;
715 /* Currently render ring is the only HW context user */
716 if (ring
->id
!= RCS
|| !error
->ccid
)
719 list_for_each_entry(obj
, &dev_priv
->mm
.bound_list
, global_list
) {
720 if ((error
->ccid
& PAGE_MASK
) == i915_gem_obj_ggtt_offset(obj
)) {
721 ering
->ctx
= i915_error_object_create_sized(dev_priv
,
728 static void i915_gem_record_rings(struct drm_device
*dev
,
729 struct drm_i915_error_state
*error
)
731 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
732 struct intel_ring_buffer
*ring
;
733 struct drm_i915_gem_request
*request
;
736 for_each_ring(ring
, dev_priv
, i
) {
737 i915_record_ring_state(dev
, error
, ring
);
739 error
->ring
[i
].batchbuffer
=
740 i915_error_first_batchbuffer(dev_priv
, ring
);
742 error
->ring
[i
].ringbuffer
=
743 i915_error_object_create(dev_priv
, ring
->obj
);
746 i915_gem_record_active_context(ring
, error
, &error
->ring
[i
]);
749 list_for_each_entry(request
, &ring
->request_list
, list
)
752 error
->ring
[i
].num_requests
= count
;
753 error
->ring
[i
].requests
=
754 kmalloc(count
*sizeof(struct drm_i915_error_request
),
756 if (error
->ring
[i
].requests
== NULL
) {
757 error
->ring
[i
].num_requests
= 0;
762 list_for_each_entry(request
, &ring
->request_list
, list
) {
763 struct drm_i915_error_request
*erq
;
765 erq
= &error
->ring
[i
].requests
[count
++];
766 erq
->seqno
= request
->seqno
;
767 erq
->jiffies
= request
->emitted_jiffies
;
768 erq
->tail
= request
->tail
;
773 static void i915_gem_capture_buffers(struct drm_i915_private
*dev_priv
,
774 struct drm_i915_error_state
*error
)
776 struct drm_i915_gem_object
*obj
;
780 list_for_each_entry(obj
, &dev_priv
->mm
.active_list
, mm_list
)
782 error
->active_bo_count
= i
;
783 list_for_each_entry(obj
, &dev_priv
->mm
.bound_list
, global_list
)
786 error
->pinned_bo_count
= i
- error
->active_bo_count
;
789 error
->active_bo
= kmalloc(sizeof(*error
->active_bo
)*i
,
791 if (error
->active_bo
)
793 error
->active_bo
+ error
->active_bo_count
;
796 if (error
->active_bo
)
797 error
->active_bo_count
=
798 capture_active_bo(error
->active_bo
,
799 error
->active_bo_count
,
800 &dev_priv
->mm
.active_list
);
802 if (error
->pinned_bo
)
803 error
->pinned_bo_count
=
804 capture_pinned_bo(error
->pinned_bo
,
805 error
->pinned_bo_count
,
806 &dev_priv
->mm
.bound_list
);
810 * i915_capture_error_state - capture an error record for later analysis
813 * Should be called when an error is detected (either a hang or an error
814 * interrupt) to capture error state from the time of the error. Fills
815 * out a structure which becomes available in debugfs for user level tools
818 void i915_capture_error_state(struct drm_device
*dev
)
820 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
821 struct drm_i915_error_state
*error
;
825 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
826 error
= dev_priv
->gpu_error
.first_error
;
827 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
831 /* Account for pipe specific data like PIPE*STAT */
832 error
= kzalloc(sizeof(*error
), GFP_ATOMIC
);
834 DRM_DEBUG_DRIVER("out of memory, not capturing error state\n");
838 DRM_INFO("capturing error event; look for more information in "
839 "/sys/class/drm/card%d/error\n", dev
->primary
->index
);
841 kref_init(&error
->ref
);
842 error
->eir
= I915_READ(EIR
);
843 error
->pgtbl_er
= I915_READ(PGTBL_ER
);
844 if (HAS_HW_CONTEXTS(dev
))
845 error
->ccid
= I915_READ(CCID
);
847 if (HAS_PCH_SPLIT(dev
))
848 error
->ier
= I915_READ(DEIER
) | I915_READ(GTIER
);
849 else if (IS_VALLEYVIEW(dev
))
850 error
->ier
= I915_READ(GTIER
) | I915_READ(VLV_IER
);
851 else if (IS_GEN2(dev
))
852 error
->ier
= I915_READ16(IER
);
854 error
->ier
= I915_READ(IER
);
856 if (INTEL_INFO(dev
)->gen
>= 6)
857 error
->derrmr
= I915_READ(DERRMR
);
859 if (IS_VALLEYVIEW(dev
))
860 error
->forcewake
= I915_READ(FORCEWAKE_VLV
);
861 else if (INTEL_INFO(dev
)->gen
>= 7)
862 error
->forcewake
= I915_READ(FORCEWAKE_MT
);
863 else if (INTEL_INFO(dev
)->gen
== 6)
864 error
->forcewake
= I915_READ(FORCEWAKE
);
866 if (!HAS_PCH_SPLIT(dev
))
868 error
->pipestat
[pipe
] = I915_READ(PIPESTAT(pipe
));
870 if (INTEL_INFO(dev
)->gen
>= 6) {
871 error
->error
= I915_READ(ERROR_GEN6
);
872 error
->done_reg
= I915_READ(DONE_REG
);
875 if (INTEL_INFO(dev
)->gen
== 7)
876 error
->err_int
= I915_READ(GEN7_ERR_INT
);
878 i915_get_extra_instdone(dev
, error
->extra_instdone
);
880 i915_gem_capture_buffers(dev_priv
, error
);
881 i915_gem_record_fences(dev
, error
);
882 i915_gem_record_rings(dev
, error
);
884 do_gettimeofday(&error
->time
);
886 error
->overlay
= intel_overlay_capture_error_state(dev
);
887 error
->display
= intel_display_capture_error_state(dev
);
889 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
890 if (dev_priv
->gpu_error
.first_error
== NULL
) {
891 dev_priv
->gpu_error
.first_error
= error
;
894 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
897 i915_error_state_free(&error
->ref
);
900 void i915_error_state_get(struct drm_device
*dev
,
901 struct i915_error_state_file_priv
*error_priv
)
903 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
906 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
907 error_priv
->error
= dev_priv
->gpu_error
.first_error
;
908 if (error_priv
->error
)
909 kref_get(&error_priv
->error
->ref
);
910 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
914 void i915_error_state_put(struct i915_error_state_file_priv
*error_priv
)
916 if (error_priv
->error
)
917 kref_put(&error_priv
->error
->ref
, i915_error_state_free
);
920 void i915_destroy_error_state(struct drm_device
*dev
)
922 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
923 struct drm_i915_error_state
*error
;
926 spin_lock_irqsave(&dev_priv
->gpu_error
.lock
, flags
);
927 error
= dev_priv
->gpu_error
.first_error
;
928 dev_priv
->gpu_error
.first_error
= NULL
;
929 spin_unlock_irqrestore(&dev_priv
->gpu_error
.lock
, flags
);
932 kref_put(&error
->ref
, i915_error_state_free
);
935 const char *i915_cache_level_str(int type
)
938 case I915_CACHE_NONE
: return " uncached";
939 case I915_CACHE_LLC
: return " snooped (LLC)";
940 case I915_CACHE_LLC_MLC
: return " snooped (LLC+MLC)";
945 /* NB: please notice the memset */
946 void i915_get_extra_instdone(struct drm_device
*dev
, uint32_t *instdone
)
948 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
949 memset(instdone
, 0, sizeof(*instdone
) * I915_NUM_INSTDONE_REG
);
951 switch (INTEL_INFO(dev
)->gen
) {
954 instdone
[0] = I915_READ(INSTDONE
);
959 instdone
[0] = I915_READ(INSTDONE_I965
);
960 instdone
[1] = I915_READ(INSTDONE1
);
963 WARN_ONCE(1, "Unsupported platform\n");
965 instdone
[0] = I915_READ(GEN7_INSTDONE_1
);
966 instdone
[1] = I915_READ(GEN7_SC_INSTDONE
);
967 instdone
[2] = I915_READ(GEN7_SAMPLER_INSTDONE
);
968 instdone
[3] = I915_READ(GEN7_ROW_INSTDONE
);