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 static int amdgpu_gem_vm_check(void *param, struct amdgpu_bo *bo)
144 /* if anything is swapped out don't swap it in here,
145 just abort and wait for the next CS */
146 if (!amdgpu_bo_gpu_accessible(bo))
149 if (bo->shadow && !amdgpu_bo_gpu_accessible(bo->shadow))
155 static bool amdgpu_gem_vm_ready(struct amdgpu_device *adev,
156 struct amdgpu_vm *vm,
157 struct list_head *list)
159 struct ttm_validate_buffer *entry;
161 list_for_each_entry(entry, list, head) {
162 struct amdgpu_bo *bo =
163 container_of(entry->bo, struct amdgpu_bo, tbo);
164 if (amdgpu_gem_vm_check(NULL, bo))
168 return !amdgpu_vm_validate_pt_bos(adev, vm, amdgpu_gem_vm_check, NULL);
171 void amdgpu_gem_object_close(struct drm_gem_object *obj,
172 struct drm_file *file_priv)
174 struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
175 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
176 struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
177 struct amdgpu_vm *vm = &fpriv->vm;
179 struct amdgpu_bo_list_entry vm_pd;
180 struct list_head list;
181 struct ttm_validate_buffer tv;
182 struct ww_acquire_ctx ticket;
183 struct amdgpu_bo_va *bo_va;
186 INIT_LIST_HEAD(&list);
190 list_add(&tv.head, &list);
192 amdgpu_vm_get_pd_bo(vm, &list, &vm_pd);
194 r = ttm_eu_reserve_buffers(&ticket, &list, false, NULL);
196 dev_err(adev->dev, "leaking bo va because "
197 "we fail to reserve bo (%d)\n", r);
200 bo_va = amdgpu_vm_bo_find(vm, bo);
201 if (bo_va && --bo_va->ref_count == 0) {
202 amdgpu_vm_bo_rmv(adev, bo_va);
204 if (amdgpu_gem_vm_ready(adev, vm, &list)) {
205 struct dma_fence *fence = NULL;
207 r = amdgpu_vm_clear_freed(adev, vm, &fence);
209 dev_err(adev->dev, "failed to clear page "
210 "tables on GEM object close (%d)\n", r);
214 amdgpu_bo_fence(bo, fence, true);
215 dma_fence_put(fence);
219 ttm_eu_backoff_reservation(&ticket, &list);
225 int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
226 struct drm_file *filp)
228 struct amdgpu_device *adev = dev->dev_private;
229 union drm_amdgpu_gem_create *args = data;
230 uint64_t size = args->in.bo_size;
231 struct drm_gem_object *gobj;
236 /* reject invalid gem flags */
237 if (args->in.domain_flags & ~(AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
238 AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
239 AMDGPU_GEM_CREATE_CPU_GTT_USWC |
240 AMDGPU_GEM_CREATE_VRAM_CLEARED|
241 AMDGPU_GEM_CREATE_SHADOW |
242 AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS))
245 /* reject invalid gem domains */
246 if (args->in.domains & ~(AMDGPU_GEM_DOMAIN_CPU |
247 AMDGPU_GEM_DOMAIN_GTT |
248 AMDGPU_GEM_DOMAIN_VRAM |
249 AMDGPU_GEM_DOMAIN_GDS |
250 AMDGPU_GEM_DOMAIN_GWS |
251 AMDGPU_GEM_DOMAIN_OA))
254 /* create a gem object to contain this object in */
255 if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS |
256 AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
258 if (args->in.domains == AMDGPU_GEM_DOMAIN_GDS)
259 size = size << AMDGPU_GDS_SHIFT;
260 else if (args->in.domains == AMDGPU_GEM_DOMAIN_GWS)
261 size = size << AMDGPU_GWS_SHIFT;
262 else if (args->in.domains == AMDGPU_GEM_DOMAIN_OA)
263 size = size << AMDGPU_OA_SHIFT;
267 size = roundup(size, PAGE_SIZE);
269 r = amdgpu_gem_object_create(adev, size, args->in.alignment,
270 (u32)(0xffffffff & args->in.domains),
271 args->in.domain_flags,
276 r = drm_gem_handle_create(filp, gobj, &handle);
277 /* drop reference from allocate - handle holds it now */
278 drm_gem_object_unreference_unlocked(gobj);
282 memset(args, 0, sizeof(*args));
283 args->out.handle = handle;
287 int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data,
288 struct drm_file *filp)
290 struct amdgpu_device *adev = dev->dev_private;
291 struct drm_amdgpu_gem_userptr *args = data;
292 struct drm_gem_object *gobj;
293 struct amdgpu_bo *bo;
297 if (offset_in_page(args->addr | args->size))
300 /* reject unknown flag values */
301 if (args->flags & ~(AMDGPU_GEM_USERPTR_READONLY |
302 AMDGPU_GEM_USERPTR_ANONONLY | AMDGPU_GEM_USERPTR_VALIDATE |
303 AMDGPU_GEM_USERPTR_REGISTER))
306 if (!(args->flags & AMDGPU_GEM_USERPTR_READONLY) &&
307 !(args->flags & AMDGPU_GEM_USERPTR_REGISTER)) {
309 /* if we want to write to it we must install a MMU notifier */
313 /* create a gem object to contain this object in */
314 r = amdgpu_gem_object_create(adev, args->size, 0,
315 AMDGPU_GEM_DOMAIN_CPU, 0,
320 bo = gem_to_amdgpu_bo(gobj);
321 bo->prefered_domains = AMDGPU_GEM_DOMAIN_GTT;
322 bo->allowed_domains = AMDGPU_GEM_DOMAIN_GTT;
323 r = amdgpu_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags);
327 if (args->flags & AMDGPU_GEM_USERPTR_REGISTER) {
328 r = amdgpu_mn_register(bo, args->addr);
333 if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) {
334 down_read(¤t->mm->mmap_sem);
336 r = amdgpu_ttm_tt_get_user_pages(bo->tbo.ttm,
339 goto unlock_mmap_sem;
341 r = amdgpu_bo_reserve(bo, true);
345 amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_GTT);
346 r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
347 amdgpu_bo_unreserve(bo);
351 up_read(¤t->mm->mmap_sem);
354 r = drm_gem_handle_create(filp, gobj, &handle);
355 /* drop reference from allocate - handle holds it now */
356 drm_gem_object_unreference_unlocked(gobj);
360 args->handle = handle;
364 release_pages(bo->tbo.ttm->pages, bo->tbo.ttm->num_pages, false);
367 up_read(¤t->mm->mmap_sem);
370 drm_gem_object_unreference_unlocked(gobj);
375 int amdgpu_mode_dumb_mmap(struct drm_file *filp,
376 struct drm_device *dev,
377 uint32_t handle, uint64_t *offset_p)
379 struct drm_gem_object *gobj;
380 struct amdgpu_bo *robj;
382 gobj = drm_gem_object_lookup(filp, handle);
386 robj = gem_to_amdgpu_bo(gobj);
387 if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm) ||
388 (robj->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)) {
389 drm_gem_object_unreference_unlocked(gobj);
392 *offset_p = amdgpu_bo_mmap_offset(robj);
393 drm_gem_object_unreference_unlocked(gobj);
397 int amdgpu_gem_mmap_ioctl(struct drm_device *dev, void *data,
398 struct drm_file *filp)
400 union drm_amdgpu_gem_mmap *args = data;
401 uint32_t handle = args->in.handle;
402 memset(args, 0, sizeof(*args));
403 return amdgpu_mode_dumb_mmap(filp, dev, handle, &args->out.addr_ptr);
407 * amdgpu_gem_timeout - calculate jiffies timeout from absolute value
409 * @timeout_ns: timeout in ns
411 * Calculate the timeout in jiffies from an absolute timeout in ns.
413 unsigned long amdgpu_gem_timeout(uint64_t timeout_ns)
415 unsigned long timeout_jiffies;
418 /* clamp timeout if it's to large */
419 if (((int64_t)timeout_ns) < 0)
420 return MAX_SCHEDULE_TIMEOUT;
422 timeout = ktime_sub(ns_to_ktime(timeout_ns), ktime_get());
423 if (ktime_to_ns(timeout) < 0)
426 timeout_jiffies = nsecs_to_jiffies(ktime_to_ns(timeout));
427 /* clamp timeout to avoid unsigned-> signed overflow */
428 if (timeout_jiffies > MAX_SCHEDULE_TIMEOUT )
429 return MAX_SCHEDULE_TIMEOUT - 1;
431 return timeout_jiffies;
434 int amdgpu_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
435 struct drm_file *filp)
437 union drm_amdgpu_gem_wait_idle *args = data;
438 struct drm_gem_object *gobj;
439 struct amdgpu_bo *robj;
440 uint32_t handle = args->in.handle;
441 unsigned long timeout = amdgpu_gem_timeout(args->in.timeout);
445 gobj = drm_gem_object_lookup(filp, handle);
449 robj = gem_to_amdgpu_bo(gobj);
450 ret = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true,
453 /* ret == 0 means not signaled,
454 * ret > 0 means signaled
455 * ret < 0 means interrupted before timeout
458 memset(args, 0, sizeof(*args));
459 args->out.status = (ret == 0);
463 drm_gem_object_unreference_unlocked(gobj);
467 int amdgpu_gem_metadata_ioctl(struct drm_device *dev, void *data,
468 struct drm_file *filp)
470 struct drm_amdgpu_gem_metadata *args = data;
471 struct drm_gem_object *gobj;
472 struct amdgpu_bo *robj;
475 DRM_DEBUG("%d \n", args->handle);
476 gobj = drm_gem_object_lookup(filp, args->handle);
479 robj = gem_to_amdgpu_bo(gobj);
481 r = amdgpu_bo_reserve(robj, false);
482 if (unlikely(r != 0))
485 if (args->op == AMDGPU_GEM_METADATA_OP_GET_METADATA) {
486 amdgpu_bo_get_tiling_flags(robj, &args->data.tiling_info);
487 r = amdgpu_bo_get_metadata(robj, args->data.data,
488 sizeof(args->data.data),
489 &args->data.data_size_bytes,
491 } else if (args->op == AMDGPU_GEM_METADATA_OP_SET_METADATA) {
492 if (args->data.data_size_bytes > sizeof(args->data.data)) {
496 r = amdgpu_bo_set_tiling_flags(robj, args->data.tiling_info);
498 r = amdgpu_bo_set_metadata(robj, args->data.data,
499 args->data.data_size_bytes,
504 amdgpu_bo_unreserve(robj);
506 drm_gem_object_unreference_unlocked(gobj);
511 * amdgpu_gem_va_update_vm -update the bo_va in its VM
513 * @adev: amdgpu_device pointer
515 * @bo_va: bo_va to update
516 * @list: validation list
517 * @operation: map, unmap or clear
519 * Update the bo_va directly after setting its address. Errors are not
520 * vital here, so they are not reported back to userspace.
522 static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev,
523 struct amdgpu_vm *vm,
524 struct amdgpu_bo_va *bo_va,
525 struct list_head *list,
528 int r = -ERESTARTSYS;
530 if (!amdgpu_gem_vm_ready(adev, vm, list))
533 r = amdgpu_vm_update_directories(adev, vm);
537 r = amdgpu_vm_clear_freed(adev, vm, NULL);
541 if (operation == AMDGPU_VA_OP_MAP ||
542 operation == AMDGPU_VA_OP_REPLACE)
543 r = amdgpu_vm_bo_update(adev, bo_va, false);
546 if (r && r != -ERESTARTSYS)
547 DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
550 int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
551 struct drm_file *filp)
553 const uint32_t valid_flags = AMDGPU_VM_DELAY_UPDATE |
554 AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_PAGE_WRITEABLE |
555 AMDGPU_VM_PAGE_EXECUTABLE | AMDGPU_VM_MTYPE_MASK;
556 const uint32_t prt_flags = AMDGPU_VM_DELAY_UPDATE |
559 struct drm_amdgpu_gem_va *args = data;
560 struct drm_gem_object *gobj;
561 struct amdgpu_device *adev = dev->dev_private;
562 struct amdgpu_fpriv *fpriv = filp->driver_priv;
563 struct amdgpu_bo *abo;
564 struct amdgpu_bo_va *bo_va;
565 struct amdgpu_bo_list_entry vm_pd;
566 struct ttm_validate_buffer tv;
567 struct ww_acquire_ctx ticket;
568 struct list_head list;
572 if (args->va_address < AMDGPU_VA_RESERVED_SIZE) {
573 dev_err(&dev->pdev->dev,
574 "va_address 0x%lX is in reserved area 0x%X\n",
575 (unsigned long)args->va_address,
576 AMDGPU_VA_RESERVED_SIZE);
580 if ((args->flags & ~valid_flags) && (args->flags & ~prt_flags)) {
581 dev_err(&dev->pdev->dev, "invalid flags combination 0x%08X\n",
586 switch (args->operation) {
587 case AMDGPU_VA_OP_MAP:
588 case AMDGPU_VA_OP_UNMAP:
589 case AMDGPU_VA_OP_CLEAR:
590 case AMDGPU_VA_OP_REPLACE:
593 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
597 if ((args->operation == AMDGPU_VA_OP_MAP) ||
598 (args->operation == AMDGPU_VA_OP_REPLACE)) {
599 if (amdgpu_kms_vram_lost(adev, fpriv))
603 INIT_LIST_HEAD(&list);
604 if ((args->operation != AMDGPU_VA_OP_CLEAR) &&
605 !(args->flags & AMDGPU_VM_PAGE_PRT)) {
606 gobj = drm_gem_object_lookup(filp, args->handle);
609 abo = gem_to_amdgpu_bo(gobj);
612 list_add(&tv.head, &list);
618 amdgpu_vm_get_pd_bo(&fpriv->vm, &list, &vm_pd);
620 r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL);
625 bo_va = amdgpu_vm_bo_find(&fpriv->vm, abo);
630 } else if (args->operation != AMDGPU_VA_OP_CLEAR) {
631 bo_va = fpriv->prt_va;
636 switch (args->operation) {
637 case AMDGPU_VA_OP_MAP:
638 r = amdgpu_vm_alloc_pts(adev, bo_va->vm, args->va_address,
643 va_flags = amdgpu_vm_get_pte_flags(adev, args->flags);
644 r = amdgpu_vm_bo_map(adev, bo_va, args->va_address,
645 args->offset_in_bo, args->map_size,
648 case AMDGPU_VA_OP_UNMAP:
649 r = amdgpu_vm_bo_unmap(adev, bo_va, args->va_address);
652 case AMDGPU_VA_OP_CLEAR:
653 r = amdgpu_vm_bo_clear_mappings(adev, &fpriv->vm,
657 case AMDGPU_VA_OP_REPLACE:
658 r = amdgpu_vm_alloc_pts(adev, bo_va->vm, args->va_address,
663 va_flags = amdgpu_vm_get_pte_flags(adev, args->flags);
664 r = amdgpu_vm_bo_replace_map(adev, bo_va, args->va_address,
665 args->offset_in_bo, args->map_size,
671 if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE) && !amdgpu_vm_debug)
672 amdgpu_gem_va_update_vm(adev, &fpriv->vm, bo_va, &list,
676 ttm_eu_backoff_reservation(&ticket, &list);
679 drm_gem_object_unreference_unlocked(gobj);
683 int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
684 struct drm_file *filp)
686 struct drm_amdgpu_gem_op *args = data;
687 struct drm_gem_object *gobj;
688 struct amdgpu_bo *robj;
691 gobj = drm_gem_object_lookup(filp, args->handle);
695 robj = gem_to_amdgpu_bo(gobj);
697 r = amdgpu_bo_reserve(robj, false);
702 case AMDGPU_GEM_OP_GET_GEM_CREATE_INFO: {
703 struct drm_amdgpu_gem_create_in info;
704 void __user *out = (void __user *)(uintptr_t)args->value;
706 info.bo_size = robj->gem_base.size;
707 info.alignment = robj->tbo.mem.page_alignment << PAGE_SHIFT;
708 info.domains = robj->prefered_domains;
709 info.domain_flags = robj->flags;
710 amdgpu_bo_unreserve(robj);
711 if (copy_to_user(out, &info, sizeof(info)))
715 case AMDGPU_GEM_OP_SET_PLACEMENT:
716 if (robj->prime_shared_count && (args->value & AMDGPU_GEM_DOMAIN_VRAM)) {
718 amdgpu_bo_unreserve(robj);
721 if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm)) {
723 amdgpu_bo_unreserve(robj);
726 robj->prefered_domains = args->value & (AMDGPU_GEM_DOMAIN_VRAM |
727 AMDGPU_GEM_DOMAIN_GTT |
728 AMDGPU_GEM_DOMAIN_CPU);
729 robj->allowed_domains = robj->prefered_domains;
730 if (robj->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
731 robj->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
733 amdgpu_bo_unreserve(robj);
736 amdgpu_bo_unreserve(robj);
741 drm_gem_object_unreference_unlocked(gobj);
745 int amdgpu_mode_dumb_create(struct drm_file *file_priv,
746 struct drm_device *dev,
747 struct drm_mode_create_dumb *args)
749 struct amdgpu_device *adev = dev->dev_private;
750 struct drm_gem_object *gobj;
754 args->pitch = amdgpu_align_pitch(adev, args->width,
755 DIV_ROUND_UP(args->bpp, 8), 0);
756 args->size = (u64)args->pitch * args->height;
757 args->size = ALIGN(args->size, PAGE_SIZE);
759 r = amdgpu_gem_object_create(adev, args->size, 0,
760 AMDGPU_GEM_DOMAIN_VRAM,
761 AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
767 r = drm_gem_handle_create(file_priv, gobj, &handle);
768 /* drop reference from allocate - handle holds it now */
769 drm_gem_object_unreference_unlocked(gobj);
773 args->handle = handle;
777 #if defined(CONFIG_DEBUG_FS)
778 static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
780 struct drm_gem_object *gobj = ptr;
781 struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
782 struct seq_file *m = data;
785 const char *placement;
788 domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
790 case AMDGPU_GEM_DOMAIN_VRAM:
793 case AMDGPU_GEM_DOMAIN_GTT:
796 case AMDGPU_GEM_DOMAIN_CPU:
801 seq_printf(m, "\t0x%08x: %12ld byte %s @ 0x%010Lx",
802 id, amdgpu_bo_size(bo), placement,
803 amdgpu_bo_gpu_offset(bo));
805 pin_count = ACCESS_ONCE(bo->pin_count);
807 seq_printf(m, " pin count %d", pin_count);
813 static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data)
815 struct drm_info_node *node = (struct drm_info_node *)m->private;
816 struct drm_device *dev = node->minor->dev;
817 struct drm_file *file;
820 r = mutex_lock_interruptible(&dev->filelist_mutex);
824 list_for_each_entry(file, &dev->filelist, lhead) {
825 struct task_struct *task;
828 * Although we have a valid reference on file->pid, that does
829 * not guarantee that the task_struct who called get_pid() is
830 * still alive (e.g. get_pid(current) => fork() => exit()).
831 * Therefore, we need to protect this ->comm access using RCU.
834 task = pid_task(file->pid, PIDTYPE_PID);
835 seq_printf(m, "pid %8d command %s:\n", pid_nr(file->pid),
836 task ? task->comm : "<unknown>");
839 spin_lock(&file->table_lock);
840 idr_for_each(&file->object_idr, amdgpu_debugfs_gem_bo_info, m);
841 spin_unlock(&file->table_lock);
844 mutex_unlock(&dev->filelist_mutex);
848 static const struct drm_info_list amdgpu_debugfs_gem_list[] = {
849 {"amdgpu_gem_info", &amdgpu_debugfs_gem_info, 0, NULL},
853 int amdgpu_gem_debugfs_init(struct amdgpu_device *adev)
855 #if defined(CONFIG_DEBUG_FS)
856 return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_gem_list, 1);