2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
24 * Authors: Dave Airlie
28 #include <linux/ktime.h>
29 #include <linux/pagemap.h>
31 #include <drm/amdgpu_drm.h>
34 void amdgpu_gem_object_free(struct drm_gem_object
*gobj
)
36 struct amdgpu_bo
*robj
= gem_to_amdgpu_bo(gobj
);
39 if (robj
->gem_base
.import_attach
)
40 drm_prime_gem_destroy(&robj
->gem_base
, robj
->tbo
.sg
);
41 amdgpu_mn_unregister(robj
);
42 amdgpu_bo_unref(&robj
);
46 int amdgpu_gem_object_create(struct amdgpu_device
*adev
, unsigned long size
,
47 int alignment
, u32 initial_domain
,
48 u64 flags
, bool kernel
,
49 struct drm_gem_object
**obj
)
51 struct amdgpu_bo
*robj
;
52 unsigned long max_size
;
56 /* At least align on page size */
57 if (alignment
< PAGE_SIZE
) {
58 alignment
= PAGE_SIZE
;
61 if (!(initial_domain
& (AMDGPU_GEM_DOMAIN_GDS
| AMDGPU_GEM_DOMAIN_GWS
| AMDGPU_GEM_DOMAIN_OA
))) {
62 /* Maximum bo size is the unpinned gtt size since we use the gtt to
63 * handle vram to system pool migrations.
65 max_size
= adev
->mc
.gtt_size
- adev
->gart_pin_size
;
66 if (size
> max_size
) {
67 DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n",
68 size
>> 20, max_size
>> 20);
73 r
= amdgpu_bo_create(adev
, size
, alignment
, kernel
, initial_domain
,
74 flags
, NULL
, NULL
, &robj
);
76 if (r
!= -ERESTARTSYS
) {
77 if (initial_domain
== AMDGPU_GEM_DOMAIN_VRAM
) {
78 initial_domain
|= AMDGPU_GEM_DOMAIN_GTT
;
81 DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
82 size
, initial_domain
, alignment
, r
);
86 *obj
= &robj
->gem_base
;
91 void amdgpu_gem_force_release(struct amdgpu_device
*adev
)
93 struct drm_device
*ddev
= adev
->ddev
;
94 struct drm_file
*file
;
96 mutex_lock(&ddev
->filelist_mutex
);
98 list_for_each_entry(file
, &ddev
->filelist
, lhead
) {
99 struct drm_gem_object
*gobj
;
102 WARN_ONCE(1, "Still active user space clients!\n");
103 spin_lock(&file
->table_lock
);
104 idr_for_each_entry(&file
->object_idr
, gobj
, handle
) {
105 WARN_ONCE(1, "And also active allocations!\n");
106 drm_gem_object_unreference_unlocked(gobj
);
108 idr_destroy(&file
->object_idr
);
109 spin_unlock(&file
->table_lock
);
112 mutex_unlock(&ddev
->filelist_mutex
);
116 * Call from drm_gem_handle_create which appear in both new and open ioctl
119 int amdgpu_gem_object_open(struct drm_gem_object
*obj
,
120 struct drm_file
*file_priv
)
122 struct amdgpu_bo
*abo
= gem_to_amdgpu_bo(obj
);
123 struct amdgpu_device
*adev
= amdgpu_ttm_adev(abo
->tbo
.bdev
);
124 struct amdgpu_fpriv
*fpriv
= file_priv
->driver_priv
;
125 struct amdgpu_vm
*vm
= &fpriv
->vm
;
126 struct amdgpu_bo_va
*bo_va
;
128 r
= amdgpu_bo_reserve(abo
, false);
132 bo_va
= amdgpu_vm_bo_find(vm
, abo
);
134 bo_va
= amdgpu_vm_bo_add(adev
, vm
, abo
);
138 amdgpu_bo_unreserve(abo
);
142 void amdgpu_gem_object_close(struct drm_gem_object
*obj
,
143 struct drm_file
*file_priv
)
145 struct amdgpu_bo
*bo
= gem_to_amdgpu_bo(obj
);
146 struct amdgpu_device
*adev
= amdgpu_ttm_adev(bo
->tbo
.bdev
);
147 struct amdgpu_fpriv
*fpriv
= file_priv
->driver_priv
;
148 struct amdgpu_vm
*vm
= &fpriv
->vm
;
150 struct amdgpu_bo_list_entry vm_pd
;
151 struct list_head list
, duplicates
;
152 struct ttm_validate_buffer tv
;
153 struct ww_acquire_ctx ticket
;
154 struct amdgpu_bo_va
*bo_va
;
157 INIT_LIST_HEAD(&list
);
158 INIT_LIST_HEAD(&duplicates
);
162 list_add(&tv
.head
, &list
);
164 amdgpu_vm_get_pd_bo(vm
, &list
, &vm_pd
);
166 r
= ttm_eu_reserve_buffers(&ticket
, &list
, false, &duplicates
);
168 dev_err(adev
->dev
, "leaking bo va because "
169 "we fail to reserve bo (%d)\n", r
);
172 bo_va
= amdgpu_vm_bo_find(vm
, bo
);
174 if (--bo_va
->ref_count
== 0) {
175 amdgpu_vm_bo_rmv(adev
, bo_va
);
178 ttm_eu_backoff_reservation(&ticket
, &list
);
181 static int amdgpu_gem_handle_lockup(struct amdgpu_device
*adev
, int r
)
184 r
= amdgpu_gpu_reset(adev
);
194 int amdgpu_gem_create_ioctl(struct drm_device
*dev
, void *data
,
195 struct drm_file
*filp
)
197 struct amdgpu_device
*adev
= dev
->dev_private
;
198 union drm_amdgpu_gem_create
*args
= data
;
199 uint64_t size
= args
->in
.bo_size
;
200 struct drm_gem_object
*gobj
;
205 /* create a gem object to contain this object in */
206 if (args
->in
.domains
& (AMDGPU_GEM_DOMAIN_GDS
|
207 AMDGPU_GEM_DOMAIN_GWS
| AMDGPU_GEM_DOMAIN_OA
)) {
209 if (args
->in
.domains
== AMDGPU_GEM_DOMAIN_GDS
)
210 size
= size
<< AMDGPU_GDS_SHIFT
;
211 else if (args
->in
.domains
== AMDGPU_GEM_DOMAIN_GWS
)
212 size
= size
<< AMDGPU_GWS_SHIFT
;
213 else if (args
->in
.domains
== AMDGPU_GEM_DOMAIN_OA
)
214 size
= size
<< AMDGPU_OA_SHIFT
;
220 size
= roundup(size
, PAGE_SIZE
);
222 r
= amdgpu_gem_object_create(adev
, size
, args
->in
.alignment
,
223 (u32
)(0xffffffff & args
->in
.domains
),
224 args
->in
.domain_flags
,
229 r
= drm_gem_handle_create(filp
, gobj
, &handle
);
230 /* drop reference from allocate - handle holds it now */
231 drm_gem_object_unreference_unlocked(gobj
);
235 memset(args
, 0, sizeof(*args
));
236 args
->out
.handle
= handle
;
240 r
= amdgpu_gem_handle_lockup(adev
, r
);
244 int amdgpu_gem_userptr_ioctl(struct drm_device
*dev
, void *data
,
245 struct drm_file
*filp
)
247 struct amdgpu_device
*adev
= dev
->dev_private
;
248 struct drm_amdgpu_gem_userptr
*args
= data
;
249 struct drm_gem_object
*gobj
;
250 struct amdgpu_bo
*bo
;
254 if (offset_in_page(args
->addr
| args
->size
))
257 /* reject unknown flag values */
258 if (args
->flags
& ~(AMDGPU_GEM_USERPTR_READONLY
|
259 AMDGPU_GEM_USERPTR_ANONONLY
| AMDGPU_GEM_USERPTR_VALIDATE
|
260 AMDGPU_GEM_USERPTR_REGISTER
))
263 if (!(args
->flags
& AMDGPU_GEM_USERPTR_READONLY
) &&
264 !(args
->flags
& AMDGPU_GEM_USERPTR_REGISTER
)) {
266 /* if we want to write to it we must install a MMU notifier */
270 /* create a gem object to contain this object in */
271 r
= amdgpu_gem_object_create(adev
, args
->size
, 0,
272 AMDGPU_GEM_DOMAIN_CPU
, 0,
277 bo
= gem_to_amdgpu_bo(gobj
);
278 bo
->prefered_domains
= AMDGPU_GEM_DOMAIN_GTT
;
279 bo
->allowed_domains
= AMDGPU_GEM_DOMAIN_GTT
;
280 r
= amdgpu_ttm_tt_set_userptr(bo
->tbo
.ttm
, args
->addr
, args
->flags
);
284 if (args
->flags
& AMDGPU_GEM_USERPTR_REGISTER
) {
285 r
= amdgpu_mn_register(bo
, args
->addr
);
290 if (args
->flags
& AMDGPU_GEM_USERPTR_VALIDATE
) {
291 down_read(¤t
->mm
->mmap_sem
);
293 r
= amdgpu_ttm_tt_get_user_pages(bo
->tbo
.ttm
,
296 goto unlock_mmap_sem
;
298 r
= amdgpu_bo_reserve(bo
, true);
302 amdgpu_ttm_placement_from_domain(bo
, AMDGPU_GEM_DOMAIN_GTT
);
303 r
= ttm_bo_validate(&bo
->tbo
, &bo
->placement
, true, false);
304 amdgpu_bo_unreserve(bo
);
308 up_read(¤t
->mm
->mmap_sem
);
311 r
= drm_gem_handle_create(filp
, gobj
, &handle
);
312 /* drop reference from allocate - handle holds it now */
313 drm_gem_object_unreference_unlocked(gobj
);
317 args
->handle
= handle
;
321 release_pages(bo
->tbo
.ttm
->pages
, bo
->tbo
.ttm
->num_pages
, false);
324 up_read(¤t
->mm
->mmap_sem
);
327 drm_gem_object_unreference_unlocked(gobj
);
330 r
= amdgpu_gem_handle_lockup(adev
, r
);
335 int amdgpu_mode_dumb_mmap(struct drm_file
*filp
,
336 struct drm_device
*dev
,
337 uint32_t handle
, uint64_t *offset_p
)
339 struct drm_gem_object
*gobj
;
340 struct amdgpu_bo
*robj
;
342 gobj
= drm_gem_object_lookup(filp
, handle
);
346 robj
= gem_to_amdgpu_bo(gobj
);
347 if (amdgpu_ttm_tt_get_usermm(robj
->tbo
.ttm
) ||
348 (robj
->flags
& AMDGPU_GEM_CREATE_NO_CPU_ACCESS
)) {
349 drm_gem_object_unreference_unlocked(gobj
);
352 *offset_p
= amdgpu_bo_mmap_offset(robj
);
353 drm_gem_object_unreference_unlocked(gobj
);
357 int amdgpu_gem_mmap_ioctl(struct drm_device
*dev
, void *data
,
358 struct drm_file
*filp
)
360 union drm_amdgpu_gem_mmap
*args
= data
;
361 uint32_t handle
= args
->in
.handle
;
362 memset(args
, 0, sizeof(*args
));
363 return amdgpu_mode_dumb_mmap(filp
, dev
, handle
, &args
->out
.addr_ptr
);
367 * amdgpu_gem_timeout - calculate jiffies timeout from absolute value
369 * @timeout_ns: timeout in ns
371 * Calculate the timeout in jiffies from an absolute timeout in ns.
373 unsigned long amdgpu_gem_timeout(uint64_t timeout_ns
)
375 unsigned long timeout_jiffies
;
378 /* clamp timeout if it's to large */
379 if (((int64_t)timeout_ns
) < 0)
380 return MAX_SCHEDULE_TIMEOUT
;
382 timeout
= ktime_sub(ns_to_ktime(timeout_ns
), ktime_get());
383 if (ktime_to_ns(timeout
) < 0)
386 timeout_jiffies
= nsecs_to_jiffies(ktime_to_ns(timeout
));
387 /* clamp timeout to avoid unsigned-> signed overflow */
388 if (timeout_jiffies
> MAX_SCHEDULE_TIMEOUT
)
389 return MAX_SCHEDULE_TIMEOUT
- 1;
391 return timeout_jiffies
;
394 int amdgpu_gem_wait_idle_ioctl(struct drm_device
*dev
, void *data
,
395 struct drm_file
*filp
)
397 struct amdgpu_device
*adev
= dev
->dev_private
;
398 union drm_amdgpu_gem_wait_idle
*args
= data
;
399 struct drm_gem_object
*gobj
;
400 struct amdgpu_bo
*robj
;
401 uint32_t handle
= args
->in
.handle
;
402 unsigned long timeout
= amdgpu_gem_timeout(args
->in
.timeout
);
406 gobj
= drm_gem_object_lookup(filp
, handle
);
410 robj
= gem_to_amdgpu_bo(gobj
);
411 ret
= reservation_object_wait_timeout_rcu(robj
->tbo
.resv
, true, true,
414 /* ret == 0 means not signaled,
415 * ret > 0 means signaled
416 * ret < 0 means interrupted before timeout
419 memset(args
, 0, sizeof(*args
));
420 args
->out
.status
= (ret
== 0);
424 drm_gem_object_unreference_unlocked(gobj
);
425 r
= amdgpu_gem_handle_lockup(adev
, r
);
429 int amdgpu_gem_metadata_ioctl(struct drm_device
*dev
, void *data
,
430 struct drm_file
*filp
)
432 struct drm_amdgpu_gem_metadata
*args
= data
;
433 struct drm_gem_object
*gobj
;
434 struct amdgpu_bo
*robj
;
437 DRM_DEBUG("%d \n", args
->handle
);
438 gobj
= drm_gem_object_lookup(filp
, args
->handle
);
441 robj
= gem_to_amdgpu_bo(gobj
);
443 r
= amdgpu_bo_reserve(robj
, false);
444 if (unlikely(r
!= 0))
447 if (args
->op
== AMDGPU_GEM_METADATA_OP_GET_METADATA
) {
448 amdgpu_bo_get_tiling_flags(robj
, &args
->data
.tiling_info
);
449 r
= amdgpu_bo_get_metadata(robj
, args
->data
.data
,
450 sizeof(args
->data
.data
),
451 &args
->data
.data_size_bytes
,
453 } else if (args
->op
== AMDGPU_GEM_METADATA_OP_SET_METADATA
) {
454 if (args
->data
.data_size_bytes
> sizeof(args
->data
.data
)) {
458 r
= amdgpu_bo_set_tiling_flags(robj
, args
->data
.tiling_info
);
460 r
= amdgpu_bo_set_metadata(robj
, args
->data
.data
,
461 args
->data
.data_size_bytes
,
466 amdgpu_bo_unreserve(robj
);
468 drm_gem_object_unreference_unlocked(gobj
);
472 static int amdgpu_gem_va_check(void *param
, struct amdgpu_bo
*bo
)
474 /* if anything is swapped out don't swap it in here,
475 just abort and wait for the next CS */
476 if (!amdgpu_bo_gpu_accessible(bo
))
479 if (bo
->shadow
&& !amdgpu_bo_gpu_accessible(bo
->shadow
))
486 * amdgpu_gem_va_update_vm -update the bo_va in its VM
488 * @adev: amdgpu_device pointer
489 * @bo_va: bo_va to update
490 * @list: validation list
491 * @operation: map or unmap
493 * Update the bo_va directly after setting its address. Errors are not
494 * vital here, so they are not reported back to userspace.
496 static void amdgpu_gem_va_update_vm(struct amdgpu_device
*adev
,
497 struct amdgpu_bo_va
*bo_va
,
498 struct list_head
*list
,
501 struct ttm_validate_buffer
*entry
;
502 int r
= -ERESTARTSYS
;
504 list_for_each_entry(entry
, list
, head
) {
505 struct amdgpu_bo
*bo
=
506 container_of(entry
->bo
, struct amdgpu_bo
, tbo
);
507 if (amdgpu_gem_va_check(NULL
, bo
))
511 r
= amdgpu_vm_validate_pt_bos(adev
, bo_va
->vm
, amdgpu_gem_va_check
,
516 r
= amdgpu_vm_update_page_directory(adev
, bo_va
->vm
);
520 r
= amdgpu_vm_clear_freed(adev
, bo_va
->vm
);
524 if (operation
== AMDGPU_VA_OP_MAP
)
525 r
= amdgpu_vm_bo_update(adev
, bo_va
, false);
528 if (r
&& r
!= -ERESTARTSYS
)
529 DRM_ERROR("Couldn't update BO_VA (%d)\n", r
);
532 int amdgpu_gem_va_ioctl(struct drm_device
*dev
, void *data
,
533 struct drm_file
*filp
)
535 struct drm_amdgpu_gem_va
*args
= data
;
536 struct drm_gem_object
*gobj
;
537 struct amdgpu_device
*adev
= dev
->dev_private
;
538 struct amdgpu_fpriv
*fpriv
= filp
->driver_priv
;
539 struct amdgpu_bo
*abo
;
540 struct amdgpu_bo_va
*bo_va
;
541 struct amdgpu_bo_list_entry vm_pd
;
542 struct ttm_validate_buffer tv
;
543 struct ww_acquire_ctx ticket
;
544 struct list_head list
;
545 uint32_t invalid_flags
, va_flags
= 0;
548 if (!adev
->vm_manager
.enabled
)
551 if (args
->va_address
< AMDGPU_VA_RESERVED_SIZE
) {
552 dev_err(&dev
->pdev
->dev
,
553 "va_address 0x%lX is in reserved area 0x%X\n",
554 (unsigned long)args
->va_address
,
555 AMDGPU_VA_RESERVED_SIZE
);
559 invalid_flags
= ~(AMDGPU_VM_DELAY_UPDATE
| AMDGPU_VM_PAGE_READABLE
|
560 AMDGPU_VM_PAGE_WRITEABLE
| AMDGPU_VM_PAGE_EXECUTABLE
);
561 if ((args
->flags
& invalid_flags
)) {
562 dev_err(&dev
->pdev
->dev
, "invalid flags 0x%08X vs 0x%08X\n",
563 args
->flags
, invalid_flags
);
567 switch (args
->operation
) {
568 case AMDGPU_VA_OP_MAP
:
569 case AMDGPU_VA_OP_UNMAP
:
572 dev_err(&dev
->pdev
->dev
, "unsupported operation %d\n",
577 gobj
= drm_gem_object_lookup(filp
, args
->handle
);
580 abo
= gem_to_amdgpu_bo(gobj
);
581 INIT_LIST_HEAD(&list
);
584 list_add(&tv
.head
, &list
);
586 amdgpu_vm_get_pd_bo(&fpriv
->vm
, &list
, &vm_pd
);
588 r
= ttm_eu_reserve_buffers(&ticket
, &list
, true, NULL
);
590 drm_gem_object_unreference_unlocked(gobj
);
594 bo_va
= amdgpu_vm_bo_find(&fpriv
->vm
, abo
);
596 ttm_eu_backoff_reservation(&ticket
, &list
);
597 drm_gem_object_unreference_unlocked(gobj
);
601 switch (args
->operation
) {
602 case AMDGPU_VA_OP_MAP
:
603 if (args
->flags
& AMDGPU_VM_PAGE_READABLE
)
604 va_flags
|= AMDGPU_PTE_READABLE
;
605 if (args
->flags
& AMDGPU_VM_PAGE_WRITEABLE
)
606 va_flags
|= AMDGPU_PTE_WRITEABLE
;
607 if (args
->flags
& AMDGPU_VM_PAGE_EXECUTABLE
)
608 va_flags
|= AMDGPU_PTE_EXECUTABLE
;
609 r
= amdgpu_vm_bo_map(adev
, bo_va
, args
->va_address
,
610 args
->offset_in_bo
, args
->map_size
,
613 case AMDGPU_VA_OP_UNMAP
:
614 r
= amdgpu_vm_bo_unmap(adev
, bo_va
, args
->va_address
);
619 if (!r
&& !(args
->flags
& AMDGPU_VM_DELAY_UPDATE
) &&
621 amdgpu_gem_va_update_vm(adev
, bo_va
, &list
, args
->operation
);
622 ttm_eu_backoff_reservation(&ticket
, &list
);
624 drm_gem_object_unreference_unlocked(gobj
);
628 int amdgpu_gem_op_ioctl(struct drm_device
*dev
, void *data
,
629 struct drm_file
*filp
)
631 struct drm_amdgpu_gem_op
*args
= data
;
632 struct drm_gem_object
*gobj
;
633 struct amdgpu_bo
*robj
;
636 gobj
= drm_gem_object_lookup(filp
, args
->handle
);
640 robj
= gem_to_amdgpu_bo(gobj
);
642 r
= amdgpu_bo_reserve(robj
, false);
647 case AMDGPU_GEM_OP_GET_GEM_CREATE_INFO
: {
648 struct drm_amdgpu_gem_create_in info
;
649 void __user
*out
= (void __user
*)(long)args
->value
;
651 info
.bo_size
= robj
->gem_base
.size
;
652 info
.alignment
= robj
->tbo
.mem
.page_alignment
<< PAGE_SHIFT
;
653 info
.domains
= robj
->prefered_domains
;
654 info
.domain_flags
= robj
->flags
;
655 amdgpu_bo_unreserve(robj
);
656 if (copy_to_user(out
, &info
, sizeof(info
)))
660 case AMDGPU_GEM_OP_SET_PLACEMENT
:
661 if (amdgpu_ttm_tt_get_usermm(robj
->tbo
.ttm
)) {
663 amdgpu_bo_unreserve(robj
);
666 robj
->prefered_domains
= args
->value
& (AMDGPU_GEM_DOMAIN_VRAM
|
667 AMDGPU_GEM_DOMAIN_GTT
|
668 AMDGPU_GEM_DOMAIN_CPU
);
669 robj
->allowed_domains
= robj
->prefered_domains
;
670 if (robj
->allowed_domains
== AMDGPU_GEM_DOMAIN_VRAM
)
671 robj
->allowed_domains
|= AMDGPU_GEM_DOMAIN_GTT
;
673 amdgpu_bo_unreserve(robj
);
676 amdgpu_bo_unreserve(robj
);
681 drm_gem_object_unreference_unlocked(gobj
);
685 int amdgpu_mode_dumb_create(struct drm_file
*file_priv
,
686 struct drm_device
*dev
,
687 struct drm_mode_create_dumb
*args
)
689 struct amdgpu_device
*adev
= dev
->dev_private
;
690 struct drm_gem_object
*gobj
;
694 args
->pitch
= amdgpu_align_pitch(adev
, args
->width
,
695 DIV_ROUND_UP(args
->bpp
, 8), 0);
696 args
->size
= (u64
)args
->pitch
* args
->height
;
697 args
->size
= ALIGN(args
->size
, PAGE_SIZE
);
699 r
= amdgpu_gem_object_create(adev
, args
->size
, 0,
700 AMDGPU_GEM_DOMAIN_VRAM
,
701 AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED
,
707 r
= drm_gem_handle_create(file_priv
, gobj
, &handle
);
708 /* drop reference from allocate - handle holds it now */
709 drm_gem_object_unreference_unlocked(gobj
);
713 args
->handle
= handle
;
717 #if defined(CONFIG_DEBUG_FS)
718 static int amdgpu_debugfs_gem_bo_info(int id
, void *ptr
, void *data
)
720 struct drm_gem_object
*gobj
= ptr
;
721 struct amdgpu_bo
*bo
= gem_to_amdgpu_bo(gobj
);
722 struct seq_file
*m
= data
;
725 const char *placement
;
728 domain
= amdgpu_mem_type_to_domain(bo
->tbo
.mem
.mem_type
);
730 case AMDGPU_GEM_DOMAIN_VRAM
:
733 case AMDGPU_GEM_DOMAIN_GTT
:
736 case AMDGPU_GEM_DOMAIN_CPU
:
741 seq_printf(m
, "\t0x%08x: %12ld byte %s @ 0x%010Lx",
742 id
, amdgpu_bo_size(bo
), placement
,
743 amdgpu_bo_gpu_offset(bo
));
745 pin_count
= ACCESS_ONCE(bo
->pin_count
);
747 seq_printf(m
, " pin count %d", pin_count
);
753 static int amdgpu_debugfs_gem_info(struct seq_file
*m
, void *data
)
755 struct drm_info_node
*node
= (struct drm_info_node
*)m
->private;
756 struct drm_device
*dev
= node
->minor
->dev
;
757 struct drm_file
*file
;
760 r
= mutex_lock_interruptible(&dev
->filelist_mutex
);
764 list_for_each_entry(file
, &dev
->filelist
, lhead
) {
765 struct task_struct
*task
;
768 * Although we have a valid reference on file->pid, that does
769 * not guarantee that the task_struct who called get_pid() is
770 * still alive (e.g. get_pid(current) => fork() => exit()).
771 * Therefore, we need to protect this ->comm access using RCU.
774 task
= pid_task(file
->pid
, PIDTYPE_PID
);
775 seq_printf(m
, "pid %8d command %s:\n", pid_nr(file
->pid
),
776 task
? task
->comm
: "<unknown>");
779 spin_lock(&file
->table_lock
);
780 idr_for_each(&file
->object_idr
, amdgpu_debugfs_gem_bo_info
, m
);
781 spin_unlock(&file
->table_lock
);
784 mutex_unlock(&dev
->filelist_mutex
);
788 static const struct drm_info_list amdgpu_debugfs_gem_list
[] = {
789 {"amdgpu_gem_info", &amdgpu_debugfs_gem_info
, 0, NULL
},
793 int amdgpu_gem_debugfs_init(struct amdgpu_device
*adev
)
795 #if defined(CONFIG_DEBUG_FS)
796 return amdgpu_debugfs_add_files(adev
, amdgpu_debugfs_gem_list
, 1);