2 * Copyright 2009 Jerome Glisse.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
16 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
17 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
18 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
19 * USE OR OTHER DEALINGS IN THE SOFTWARE.
21 * The above copyright notice and this permission notice (including the
22 * next paragraph) shall be included in all copies or substantial portions
29 * Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
32 #include <linux/list.h>
33 #include <linux/slab.h>
34 #include <linux/dma-buf.h>
36 #include <drm/amdgpu_drm.h>
37 #include <drm/drm_cache.h>
39 #include "amdgpu_trace.h"
40 #include "amdgpu_amdkfd.h"
45 * This defines the interfaces to operate on an &amdgpu_bo buffer object which
46 * represents memory used by driver (VRAM, system memory, etc.). The driver
47 * provides DRM/GEM APIs to userspace. DRM/GEM APIs then use these interfaces
48 * to create/destroy/set buffer object which are then managed by the kernel TTM
50 * The interfaces are also used internally by kernel clients, including gfx,
51 * uvd, etc. for kernel managed allocations used by the GPU.
55 static void amdgpu_bo_destroy(struct ttm_buffer_object *tbo)
57 struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
61 if (bo->tbo.base.import_attach)
62 drm_prime_gem_destroy(&bo->tbo.base, bo->tbo.sg);
63 drm_gem_object_release(&bo->tbo.base);
64 amdgpu_bo_unref(&bo->parent);
68 static void amdgpu_bo_user_destroy(struct ttm_buffer_object *tbo)
70 struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
71 struct amdgpu_bo_user *ubo;
73 ubo = to_amdgpu_bo_user(bo);
75 amdgpu_bo_destroy(tbo);
78 static void amdgpu_bo_vm_destroy(struct ttm_buffer_object *tbo)
80 struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
81 struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
82 struct amdgpu_bo_vm *vmbo;
84 vmbo = to_amdgpu_bo_vm(bo);
85 /* in case amdgpu_device_recover_vram got NULL of bo->parent */
86 if (!list_empty(&vmbo->shadow_list)) {
87 mutex_lock(&adev->shadow_list_lock);
88 list_del_init(&vmbo->shadow_list);
89 mutex_unlock(&adev->shadow_list_lock);
92 amdgpu_bo_destroy(tbo);
96 * amdgpu_bo_is_amdgpu_bo - check if the buffer object is an &amdgpu_bo
97 * @bo: buffer object to be checked
99 * Uses destroy function associated with the object to determine if this is
103 * true if the object belongs to &amdgpu_bo, false if not.
105 bool amdgpu_bo_is_amdgpu_bo(struct ttm_buffer_object *bo)
107 if (bo->destroy == &amdgpu_bo_destroy ||
108 bo->destroy == &amdgpu_bo_user_destroy ||
109 bo->destroy == &amdgpu_bo_vm_destroy)
116 * amdgpu_bo_placement_from_domain - set buffer's placement
117 * @abo: &amdgpu_bo buffer object whose placement is to be set
118 * @domain: requested domain
120 * Sets buffer's placement according to requested domain and the buffer's
123 void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain)
125 struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
126 struct ttm_placement *placement = &abo->placement;
127 struct ttm_place *places = abo->placements;
128 u64 flags = abo->flags;
131 if (domain & AMDGPU_GEM_DOMAIN_VRAM) {
132 unsigned visible_pfn = adev->gmc.visible_vram_size >> PAGE_SHIFT;
136 places[c].mem_type = TTM_PL_VRAM;
139 if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
140 places[c].lpfn = visible_pfn;
142 places[c].flags |= TTM_PL_FLAG_TOPDOWN;
144 if (flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)
145 places[c].flags |= TTM_PL_FLAG_CONTIGUOUS;
149 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
153 abo->flags & AMDGPU_GEM_CREATE_PREEMPTIBLE ?
154 AMDGPU_PL_PREEMPT : TTM_PL_TT;
159 if (domain & AMDGPU_GEM_DOMAIN_CPU) {
162 places[c].mem_type = TTM_PL_SYSTEM;
167 if (domain & AMDGPU_GEM_DOMAIN_GDS) {
170 places[c].mem_type = AMDGPU_PL_GDS;
175 if (domain & AMDGPU_GEM_DOMAIN_GWS) {
178 places[c].mem_type = AMDGPU_PL_GWS;
183 if (domain & AMDGPU_GEM_DOMAIN_OA) {
186 places[c].mem_type = AMDGPU_PL_OA;
194 places[c].mem_type = TTM_PL_SYSTEM;
199 BUG_ON(c >= AMDGPU_BO_MAX_PLACEMENTS);
201 placement->num_placement = c;
202 placement->placement = places;
204 placement->num_busy_placement = c;
205 placement->busy_placement = places;
209 * amdgpu_bo_create_reserved - create reserved BO for kernel use
211 * @adev: amdgpu device object
212 * @size: size for the new BO
213 * @align: alignment for the new BO
214 * @domain: where to place it
215 * @bo_ptr: used to initialize BOs in structures
216 * @gpu_addr: GPU addr of the pinned BO
217 * @cpu_addr: optional CPU address mapping
219 * Allocates and pins a BO for kernel internal use, and returns it still
222 * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
225 * 0 on success, negative error code otherwise.
227 int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
228 unsigned long size, int align,
229 u32 domain, struct amdgpu_bo **bo_ptr,
230 u64 *gpu_addr, void **cpu_addr)
232 struct amdgpu_bo_param bp;
237 amdgpu_bo_unref(bo_ptr);
241 memset(&bp, 0, sizeof(bp));
243 bp.byte_align = align;
245 bp.flags = cpu_addr ? AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED
246 : AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
247 bp.flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
248 bp.type = ttm_bo_type_kernel;
250 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
253 r = amdgpu_bo_create(adev, &bp, bo_ptr);
255 dev_err(adev->dev, "(%d) failed to allocate kernel bo\n",
262 r = amdgpu_bo_reserve(*bo_ptr, false);
264 dev_err(adev->dev, "(%d) failed to reserve kernel bo\n", r);
268 r = amdgpu_bo_pin(*bo_ptr, domain);
270 dev_err(adev->dev, "(%d) kernel bo pin failed\n", r);
271 goto error_unreserve;
274 r = amdgpu_ttm_alloc_gart(&(*bo_ptr)->tbo);
276 dev_err(adev->dev, "%p bind failed\n", *bo_ptr);
281 *gpu_addr = amdgpu_bo_gpu_offset(*bo_ptr);
284 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
286 dev_err(adev->dev, "(%d) kernel bo map failed\n", r);
294 amdgpu_bo_unpin(*bo_ptr);
296 amdgpu_bo_unreserve(*bo_ptr);
300 amdgpu_bo_unref(bo_ptr);
306 * amdgpu_bo_create_kernel - create BO for kernel use
308 * @adev: amdgpu device object
309 * @size: size for the new BO
310 * @align: alignment for the new BO
311 * @domain: where to place it
312 * @bo_ptr: used to initialize BOs in structures
313 * @gpu_addr: GPU addr of the pinned BO
314 * @cpu_addr: optional CPU address mapping
316 * Allocates and pins a BO for kernel internal use.
318 * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
321 * 0 on success, negative error code otherwise.
323 int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
324 unsigned long size, int align,
325 u32 domain, struct amdgpu_bo **bo_ptr,
326 u64 *gpu_addr, void **cpu_addr)
330 r = amdgpu_bo_create_reserved(adev, size, align, domain, bo_ptr,
337 amdgpu_bo_unreserve(*bo_ptr);
343 * amdgpu_bo_create_kernel_at - create BO for kernel use at specific location
345 * @adev: amdgpu device object
346 * @offset: offset of the BO
347 * @size: size of the BO
348 * @domain: where to place it
349 * @bo_ptr: used to initialize BOs in structures
350 * @cpu_addr: optional CPU address mapping
352 * Creates a kernel BO at a specific offset in the address space of the domain.
355 * 0 on success, negative error code otherwise.
357 int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,
358 uint64_t offset, uint64_t size, uint32_t domain,
359 struct amdgpu_bo **bo_ptr, void **cpu_addr)
361 struct ttm_operation_ctx ctx = { false, false };
366 size = ALIGN(size, PAGE_SIZE);
368 r = amdgpu_bo_create_reserved(adev, size, PAGE_SIZE, domain, bo_ptr,
373 if ((*bo_ptr) == NULL)
377 * Remove the original mem node and create a new one at the request
381 amdgpu_bo_kunmap(*bo_ptr);
383 ttm_resource_free(&(*bo_ptr)->tbo, &(*bo_ptr)->tbo.resource);
385 for (i = 0; i < (*bo_ptr)->placement.num_placement; ++i) {
386 (*bo_ptr)->placements[i].fpfn = offset >> PAGE_SHIFT;
387 (*bo_ptr)->placements[i].lpfn = (offset + size) >> PAGE_SHIFT;
389 r = ttm_bo_mem_space(&(*bo_ptr)->tbo, &(*bo_ptr)->placement,
390 &(*bo_ptr)->tbo.resource, &ctx);
395 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
400 amdgpu_bo_unreserve(*bo_ptr);
404 amdgpu_bo_unreserve(*bo_ptr);
405 amdgpu_bo_unref(bo_ptr);
410 * amdgpu_bo_free_kernel - free BO for kernel use
412 * @bo: amdgpu BO to free
413 * @gpu_addr: pointer to where the BO's GPU memory space address was stored
414 * @cpu_addr: pointer to where the BO's CPU memory space address was stored
416 * unmaps and unpin a BO for kernel internal use.
418 void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
424 if (likely(amdgpu_bo_reserve(*bo, true) == 0)) {
426 amdgpu_bo_kunmap(*bo);
428 amdgpu_bo_unpin(*bo);
429 amdgpu_bo_unreserve(*bo);
440 /* Validate bo size is bit bigger then the request domain */
441 static bool amdgpu_bo_validate_size(struct amdgpu_device *adev,
442 unsigned long size, u32 domain)
444 struct ttm_resource_manager *man = NULL;
447 * If GTT is part of requested domains the check must succeed to
448 * allow fall back to GTT
450 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
451 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT);
453 if (size < (man->size << PAGE_SHIFT))
459 if (domain & AMDGPU_GEM_DOMAIN_VRAM) {
460 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
462 if (size < (man->size << PAGE_SHIFT))
469 /* TODO add more domains checks, such as AMDGPU_GEM_DOMAIN_CPU */
473 DRM_DEBUG("BO size %lu > total memory in domain: %llu\n", size,
474 man->size << PAGE_SHIFT);
478 bool amdgpu_bo_support_uswc(u64 bo_flags)
482 /* XXX: Write-combined CPU mappings of GTT seem broken on 32-bit
483 * See https://bugs.freedesktop.org/show_bug.cgi?id=84627
486 #elif defined(CONFIG_X86) && !defined(CONFIG_X86_PAT)
487 /* Don't try to enable write-combining when it can't work, or things
489 * See https://bugs.freedesktop.org/show_bug.cgi?id=88758
492 #ifndef CONFIG_COMPILE_TEST
493 #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \
494 thanks to write-combining
497 if (bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)
498 DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for "
499 "better performance thanks to write-combining\n");
502 /* For architectures that don't support WC memory,
503 * mask out the WC flag from the BO
505 if (!drm_arch_can_wc_memory())
513 * amdgpu_bo_create - create an &amdgpu_bo buffer object
514 * @adev: amdgpu device object
515 * @bp: parameters to be used for the buffer object
516 * @bo_ptr: pointer to the buffer object pointer
518 * Creates an &amdgpu_bo buffer object.
521 * 0 for success or a negative error code on failure.
523 int amdgpu_bo_create(struct amdgpu_device *adev,
524 struct amdgpu_bo_param *bp,
525 struct amdgpu_bo **bo_ptr)
527 struct ttm_operation_ctx ctx = {
528 .interruptible = (bp->type != ttm_bo_type_kernel),
529 .no_wait_gpu = bp->no_wait_gpu,
530 /* We opt to avoid OOM on system pages allocations */
531 .gfp_retry_mayfail = true,
532 .allow_res_evict = bp->type != ttm_bo_type_kernel,
535 struct amdgpu_bo *bo;
536 unsigned long page_align, size = bp->size;
539 /* Note that GDS/GWS/OA allocates 1 page per byte/resource. */
540 if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
541 /* GWS and OA don't need any alignment. */
542 page_align = bp->byte_align;
544 } else if (bp->domain & AMDGPU_GEM_DOMAIN_GDS) {
545 /* Both size and alignment must be a multiple of 4. */
546 page_align = ALIGN(bp->byte_align, 4);
547 size = ALIGN(size, 4) << PAGE_SHIFT;
549 /* Memory should be aligned at least to a page size. */
550 page_align = ALIGN(bp->byte_align, PAGE_SIZE) >> PAGE_SHIFT;
551 size = ALIGN(size, PAGE_SIZE);
554 if (!amdgpu_bo_validate_size(adev, size, bp->domain))
557 BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo));
560 bo = kvzalloc(bp->bo_ptr_size, GFP_KERNEL);
563 drm_gem_private_object_init(adev_to_drm(adev), &bo->tbo.base, size);
565 bo->preferred_domains = bp->preferred_domain ? bp->preferred_domain :
567 bo->allowed_domains = bo->preferred_domains;
568 if (bp->type != ttm_bo_type_kernel &&
569 bo->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
570 bo->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
572 bo->flags = bp->flags;
574 if (!amdgpu_bo_support_uswc(bo->flags))
575 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
577 bo->tbo.bdev = &adev->mman.bdev;
578 if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA |
579 AMDGPU_GEM_DOMAIN_GDS))
580 amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_CPU);
582 amdgpu_bo_placement_from_domain(bo, bp->domain);
583 if (bp->type == ttm_bo_type_kernel)
584 bo->tbo.priority = 1;
587 bp->destroy = &amdgpu_bo_destroy;
589 r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, bp->type,
590 &bo->placement, page_align, &ctx, NULL,
591 bp->resv, bp->destroy);
592 if (unlikely(r != 0))
595 if (!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
596 bo->tbo.resource->mem_type == TTM_PL_VRAM &&
597 bo->tbo.resource->start < adev->gmc.visible_vram_size >> PAGE_SHIFT)
598 amdgpu_cs_report_moved_bytes(adev, ctx.bytes_moved,
601 amdgpu_cs_report_moved_bytes(adev, ctx.bytes_moved, 0);
603 if (bp->flags & AMDGPU_GEM_CREATE_VRAM_CLEARED &&
604 bo->tbo.resource->mem_type == TTM_PL_VRAM) {
605 struct dma_fence *fence;
607 r = amdgpu_fill_buffer(bo, 0, bo->tbo.base.resv, &fence);
611 amdgpu_bo_fence(bo, fence, false);
612 dma_fence_put(bo->tbo.moving);
613 bo->tbo.moving = dma_fence_get(fence);
614 dma_fence_put(fence);
617 amdgpu_bo_unreserve(bo);
620 trace_amdgpu_bo_create(bo);
622 /* Treat CPU_ACCESS_REQUIRED only as a hint if given by UMD */
623 if (bp->type == ttm_bo_type_device)
624 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
630 dma_resv_unlock(bo->tbo.base.resv);
631 amdgpu_bo_unref(&bo);
636 * amdgpu_bo_create_user - create an &amdgpu_bo_user buffer object
637 * @adev: amdgpu device object
638 * @bp: parameters to be used for the buffer object
639 * @ubo_ptr: pointer to the buffer object pointer
641 * Create a BO to be used by user application;
644 * 0 for success or a negative error code on failure.
647 int amdgpu_bo_create_user(struct amdgpu_device *adev,
648 struct amdgpu_bo_param *bp,
649 struct amdgpu_bo_user **ubo_ptr)
651 struct amdgpu_bo *bo_ptr;
654 bp->bo_ptr_size = sizeof(struct amdgpu_bo_user);
655 bp->destroy = &amdgpu_bo_user_destroy;
656 r = amdgpu_bo_create(adev, bp, &bo_ptr);
660 *ubo_ptr = to_amdgpu_bo_user(bo_ptr);
665 * amdgpu_bo_create_vm - create an &amdgpu_bo_vm buffer object
666 * @adev: amdgpu device object
667 * @bp: parameters to be used for the buffer object
668 * @vmbo_ptr: pointer to the buffer object pointer
670 * Create a BO to be for GPUVM.
673 * 0 for success or a negative error code on failure.
676 int amdgpu_bo_create_vm(struct amdgpu_device *adev,
677 struct amdgpu_bo_param *bp,
678 struct amdgpu_bo_vm **vmbo_ptr)
680 struct amdgpu_bo *bo_ptr;
683 /* bo_ptr_size will be determined by the caller and it depends on
684 * num of amdgpu_vm_pt entries.
686 BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo_vm));
687 bp->destroy = &amdgpu_bo_vm_destroy;
688 r = amdgpu_bo_create(adev, bp, &bo_ptr);
692 *vmbo_ptr = to_amdgpu_bo_vm(bo_ptr);
693 INIT_LIST_HEAD(&(*vmbo_ptr)->shadow_list);
698 * amdgpu_bo_validate - validate an &amdgpu_bo buffer object
699 * @bo: pointer to the buffer object
701 * Sets placement according to domain; and changes placement and caching
702 * policy of the buffer object according to the placement.
703 * This is used for validating shadow bos. It calls ttm_bo_validate() to
704 * make sure the buffer is resident where it needs to be.
707 * 0 for success or a negative error code on failure.
709 int amdgpu_bo_validate(struct amdgpu_bo *bo)
711 struct ttm_operation_ctx ctx = { false, false };
715 if (bo->tbo.pin_count)
718 domain = bo->preferred_domains;
721 amdgpu_bo_placement_from_domain(bo, domain);
722 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
723 if (unlikely(r == -ENOMEM) && domain != bo->allowed_domains) {
724 domain = bo->allowed_domains;
732 * amdgpu_bo_add_to_shadow_list - add a BO to the shadow list
734 * @bo: BO that will be inserted into the shadow list
736 * Insert a BO to the shadow list.
738 void amdgpu_bo_add_to_shadow_list(struct amdgpu_bo_vm *vmbo)
740 struct amdgpu_device *adev = amdgpu_ttm_adev(vmbo->bo.tbo.bdev);
742 mutex_lock(&adev->shadow_list_lock);
743 list_add_tail(&vmbo->shadow_list, &adev->shadow_list);
744 mutex_unlock(&adev->shadow_list_lock);
748 * amdgpu_bo_restore_shadow - restore an &amdgpu_bo shadow
750 * @shadow: &amdgpu_bo shadow to be restored
751 * @fence: dma_fence associated with the operation
753 * Copies a buffer object's shadow content back to the object.
754 * This is used for recovering a buffer from its shadow in case of a gpu
755 * reset where vram context may be lost.
758 * 0 for success or a negative error code on failure.
760 int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow, struct dma_fence **fence)
763 struct amdgpu_device *adev = amdgpu_ttm_adev(shadow->tbo.bdev);
764 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
765 uint64_t shadow_addr, parent_addr;
767 shadow_addr = amdgpu_bo_gpu_offset(shadow);
768 parent_addr = amdgpu_bo_gpu_offset(shadow->parent);
770 return amdgpu_copy_buffer(ring, shadow_addr, parent_addr,
771 amdgpu_bo_size(shadow), NULL, fence,
776 * amdgpu_bo_kmap - map an &amdgpu_bo buffer object
777 * @bo: &amdgpu_bo buffer object to be mapped
778 * @ptr: kernel virtual address to be returned
780 * Calls ttm_bo_kmap() to set up the kernel virtual mapping; calls
781 * amdgpu_bo_kptr() to get the kernel virtual address.
784 * 0 for success or a negative error code on failure.
786 int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr)
791 if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
794 kptr = amdgpu_bo_kptr(bo);
801 r = dma_resv_wait_timeout(bo->tbo.base.resv, false, false,
802 MAX_SCHEDULE_TIMEOUT);
806 r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.resource->num_pages, &bo->kmap);
811 *ptr = amdgpu_bo_kptr(bo);
817 * amdgpu_bo_kptr - returns a kernel virtual address of the buffer object
818 * @bo: &amdgpu_bo buffer object
820 * Calls ttm_kmap_obj_virtual() to get the kernel virtual address
823 * the virtual address of a buffer object area.
825 void *amdgpu_bo_kptr(struct amdgpu_bo *bo)
829 return ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
833 * amdgpu_bo_kunmap - unmap an &amdgpu_bo buffer object
834 * @bo: &amdgpu_bo buffer object to be unmapped
836 * Unmaps a kernel map set up by amdgpu_bo_kmap().
838 void amdgpu_bo_kunmap(struct amdgpu_bo *bo)
841 ttm_bo_kunmap(&bo->kmap);
845 * amdgpu_bo_ref - reference an &amdgpu_bo buffer object
846 * @bo: &amdgpu_bo buffer object
848 * References the contained &ttm_buffer_object.
851 * a refcounted pointer to the &amdgpu_bo buffer object.
853 struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo)
858 ttm_bo_get(&bo->tbo);
863 * amdgpu_bo_unref - unreference an &amdgpu_bo buffer object
864 * @bo: &amdgpu_bo buffer object
866 * Unreferences the contained &ttm_buffer_object and clear the pointer
868 void amdgpu_bo_unref(struct amdgpu_bo **bo)
870 struct ttm_buffer_object *tbo;
881 * amdgpu_bo_pin_restricted - pin an &amdgpu_bo buffer object
882 * @bo: &amdgpu_bo buffer object to be pinned
883 * @domain: domain to be pinned to
884 * @min_offset: the start of requested address range
885 * @max_offset: the end of requested address range
887 * Pins the buffer object according to requested domain and address range. If
888 * the memory is unbound gart memory, binds the pages into gart table. Adjusts
889 * pin_count and pin_size accordingly.
891 * Pinning means to lock pages in memory along with keeping them at a fixed
892 * offset. It is required when a buffer can not be moved, for example, when
893 * a display buffer is being scanned out.
895 * Compared with amdgpu_bo_pin(), this function gives more flexibility on
896 * where to pin a buffer if there are specific restrictions on where a buffer
900 * 0 for success or a negative error code on failure.
902 int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
903 u64 min_offset, u64 max_offset)
905 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
906 struct ttm_operation_ctx ctx = { false, false };
909 if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm))
912 if (WARN_ON_ONCE(min_offset > max_offset))
915 /* A shared bo cannot be migrated to VRAM */
916 if (bo->prime_shared_count || bo->tbo.base.import_attach) {
917 if (domain & AMDGPU_GEM_DOMAIN_GTT)
918 domain = AMDGPU_GEM_DOMAIN_GTT;
923 /* This assumes only APU display buffers are pinned with (VRAM|GTT).
924 * See function amdgpu_display_supported_domains()
926 domain = amdgpu_bo_get_preferred_pin_domain(adev, domain);
928 if (bo->tbo.pin_count) {
929 uint32_t mem_type = bo->tbo.resource->mem_type;
930 uint32_t mem_flags = bo->tbo.resource->placement;
932 if (!(domain & amdgpu_mem_type_to_domain(mem_type)))
935 if ((mem_type == TTM_PL_VRAM) &&
936 (bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) &&
937 !(mem_flags & TTM_PL_FLAG_CONTIGUOUS))
940 ttm_bo_pin(&bo->tbo);
942 if (max_offset != 0) {
943 u64 domain_start = amdgpu_ttm_domain_start(adev,
945 WARN_ON_ONCE(max_offset <
946 (amdgpu_bo_gpu_offset(bo) - domain_start));
952 if (bo->tbo.base.import_attach)
953 dma_buf_pin(bo->tbo.base.import_attach);
955 /* force to pin into visible video ram */
956 if (!(bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS))
957 bo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
958 amdgpu_bo_placement_from_domain(bo, domain);
959 for (i = 0; i < bo->placement.num_placement; i++) {
962 fpfn = min_offset >> PAGE_SHIFT;
963 lpfn = max_offset >> PAGE_SHIFT;
965 if (fpfn > bo->placements[i].fpfn)
966 bo->placements[i].fpfn = fpfn;
967 if (!bo->placements[i].lpfn ||
968 (lpfn && lpfn < bo->placements[i].lpfn))
969 bo->placements[i].lpfn = lpfn;
972 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
974 dev_err(adev->dev, "%p pin failed\n", bo);
978 ttm_bo_pin(&bo->tbo);
980 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
981 if (domain == AMDGPU_GEM_DOMAIN_VRAM) {
982 atomic64_add(amdgpu_bo_size(bo), &adev->vram_pin_size);
983 atomic64_add(amdgpu_vram_mgr_bo_visible_size(bo),
984 &adev->visible_pin_size);
985 } else if (domain == AMDGPU_GEM_DOMAIN_GTT) {
986 atomic64_add(amdgpu_bo_size(bo), &adev->gart_pin_size);
994 * amdgpu_bo_pin - pin an &amdgpu_bo buffer object
995 * @bo: &amdgpu_bo buffer object to be pinned
996 * @domain: domain to be pinned to
998 * A simple wrapper to amdgpu_bo_pin_restricted().
999 * Provides a simpler API for buffers that do not have any strict restrictions
1000 * on where a buffer must be located.
1003 * 0 for success or a negative error code on failure.
1005 int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain)
1007 bo->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
1008 return amdgpu_bo_pin_restricted(bo, domain, 0, 0);
1012 * amdgpu_bo_unpin - unpin an &amdgpu_bo buffer object
1013 * @bo: &amdgpu_bo buffer object to be unpinned
1015 * Decreases the pin_count, and clears the flags if pin_count reaches 0.
1016 * Changes placement and pin size accordingly.
1019 * 0 for success or a negative error code on failure.
1021 void amdgpu_bo_unpin(struct amdgpu_bo *bo)
1023 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1025 ttm_bo_unpin(&bo->tbo);
1026 if (bo->tbo.pin_count)
1029 if (bo->tbo.base.import_attach)
1030 dma_buf_unpin(bo->tbo.base.import_attach);
1032 if (bo->tbo.resource->mem_type == TTM_PL_VRAM) {
1033 atomic64_sub(amdgpu_bo_size(bo), &adev->vram_pin_size);
1034 atomic64_sub(amdgpu_vram_mgr_bo_visible_size(bo),
1035 &adev->visible_pin_size);
1036 } else if (bo->tbo.resource->mem_type == TTM_PL_TT) {
1037 atomic64_sub(amdgpu_bo_size(bo), &adev->gart_pin_size);
1042 * amdgpu_bo_evict_vram - evict VRAM buffers
1043 * @adev: amdgpu device object
1045 * Evicts all VRAM buffers on the lru list of the memory type.
1046 * Mainly used for evicting vram at suspend time.
1049 * 0 for success or a negative error code on failure.
1051 int amdgpu_bo_evict_vram(struct amdgpu_device *adev)
1053 struct ttm_resource_manager *man;
1055 if (adev->in_s3 && (adev->flags & AMD_IS_APU)) {
1056 /* No need to evict vram on APUs for suspend to ram */
1060 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
1061 return ttm_resource_manager_evict_all(&adev->mman.bdev, man);
1064 static const char *amdgpu_vram_names[] = {
1079 * amdgpu_bo_init - initialize memory manager
1080 * @adev: amdgpu device object
1082 * Calls amdgpu_ttm_init() to initialize amdgpu memory manager.
1085 * 0 for success or a negative error code on failure.
1087 int amdgpu_bo_init(struct amdgpu_device *adev)
1089 /* On A+A platform, VRAM can be mapped as WB */
1090 if (!adev->gmc.xgmi.connected_to_cpu) {
1091 /* reserve PAT memory space to WC for VRAM */
1092 arch_io_reserve_memtype_wc(adev->gmc.aper_base,
1093 adev->gmc.aper_size);
1095 /* Add an MTRR for the VRAM */
1096 adev->gmc.vram_mtrr = arch_phys_wc_add(adev->gmc.aper_base,
1097 adev->gmc.aper_size);
1100 DRM_INFO("Detected VRAM RAM=%lluM, BAR=%lluM\n",
1101 adev->gmc.mc_vram_size >> 20,
1102 (unsigned long long)adev->gmc.aper_size >> 20);
1103 DRM_INFO("RAM width %dbits %s\n",
1104 adev->gmc.vram_width, amdgpu_vram_names[adev->gmc.vram_type]);
1105 return amdgpu_ttm_init(adev);
1109 * amdgpu_bo_fini - tear down memory manager
1110 * @adev: amdgpu device object
1112 * Reverses amdgpu_bo_init() to tear down memory manager.
1114 void amdgpu_bo_fini(struct amdgpu_device *adev)
1116 amdgpu_ttm_fini(adev);
1120 * amdgpu_bo_set_tiling_flags - set tiling flags
1121 * @bo: &amdgpu_bo buffer object
1122 * @tiling_flags: new flags
1124 * Sets buffer object's tiling flags with the new one. Used by GEM ioctl or
1125 * kernel driver to set the tiling flags on a buffer.
1128 * 0 for success or a negative error code on failure.
1130 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags)
1132 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1133 struct amdgpu_bo_user *ubo;
1135 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1136 if (adev->family <= AMDGPU_FAMILY_CZ &&
1137 AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT) > 6)
1140 ubo = to_amdgpu_bo_user(bo);
1141 ubo->tiling_flags = tiling_flags;
1146 * amdgpu_bo_get_tiling_flags - get tiling flags
1147 * @bo: &amdgpu_bo buffer object
1148 * @tiling_flags: returned flags
1150 * Gets buffer object's tiling flags. Used by GEM ioctl or kernel driver to
1151 * set the tiling flags on a buffer.
1153 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags)
1155 struct amdgpu_bo_user *ubo;
1157 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1158 dma_resv_assert_held(bo->tbo.base.resv);
1159 ubo = to_amdgpu_bo_user(bo);
1162 *tiling_flags = ubo->tiling_flags;
1166 * amdgpu_bo_set_metadata - set metadata
1167 * @bo: &amdgpu_bo buffer object
1168 * @metadata: new metadata
1169 * @metadata_size: size of the new metadata
1170 * @flags: flags of the new metadata
1172 * Sets buffer object's metadata, its size and flags.
1173 * Used via GEM ioctl.
1176 * 0 for success or a negative error code on failure.
1178 int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata,
1179 uint32_t metadata_size, uint64_t flags)
1181 struct amdgpu_bo_user *ubo;
1184 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1185 ubo = to_amdgpu_bo_user(bo);
1186 if (!metadata_size) {
1187 if (ubo->metadata_size) {
1188 kfree(ubo->metadata);
1189 ubo->metadata = NULL;
1190 ubo->metadata_size = 0;
1195 if (metadata == NULL)
1198 buffer = kmemdup(metadata, metadata_size, GFP_KERNEL);
1202 kfree(ubo->metadata);
1203 ubo->metadata_flags = flags;
1204 ubo->metadata = buffer;
1205 ubo->metadata_size = metadata_size;
1211 * amdgpu_bo_get_metadata - get metadata
1212 * @bo: &amdgpu_bo buffer object
1213 * @buffer: returned metadata
1214 * @buffer_size: size of the buffer
1215 * @metadata_size: size of the returned metadata
1216 * @flags: flags of the returned metadata
1218 * Gets buffer object's metadata, its size and flags. buffer_size shall not be
1219 * less than metadata_size.
1220 * Used via GEM ioctl.
1223 * 0 for success or a negative error code on failure.
1225 int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer,
1226 size_t buffer_size, uint32_t *metadata_size,
1229 struct amdgpu_bo_user *ubo;
1231 if (!buffer && !metadata_size)
1234 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1235 ubo = to_amdgpu_bo_user(bo);
1237 *metadata_size = ubo->metadata_size;
1240 if (buffer_size < ubo->metadata_size)
1243 if (ubo->metadata_size)
1244 memcpy(buffer, ubo->metadata, ubo->metadata_size);
1248 *flags = ubo->metadata_flags;
1254 * amdgpu_bo_move_notify - notification about a memory move
1255 * @bo: pointer to a buffer object
1256 * @evict: if this move is evicting the buffer from the graphics address space
1257 * @new_mem: new information of the bufer object
1259 * Marks the corresponding &amdgpu_bo buffer object as invalid, also performs
1261 * TTM driver callback which is called when ttm moves a buffer.
1263 void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
1265 struct ttm_resource *new_mem)
1267 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1268 struct amdgpu_bo *abo;
1269 struct ttm_resource *old_mem = bo->resource;
1271 if (!amdgpu_bo_is_amdgpu_bo(bo))
1274 abo = ttm_to_amdgpu_bo(bo);
1275 amdgpu_vm_bo_invalidate(adev, abo, evict);
1277 amdgpu_bo_kunmap(abo);
1279 if (abo->tbo.base.dma_buf && !abo->tbo.base.import_attach &&
1280 bo->resource->mem_type != TTM_PL_SYSTEM)
1281 dma_buf_move_notify(abo->tbo.base.dma_buf);
1283 /* remember the eviction */
1285 atomic64_inc(&adev->num_evictions);
1287 /* update statistics */
1291 /* move_notify is called before move happens */
1292 trace_amdgpu_bo_move(abo, new_mem->mem_type, old_mem->mem_type);
1295 void amdgpu_bo_get_memory(struct amdgpu_bo *bo, uint64_t *vram_mem,
1296 uint64_t *gtt_mem, uint64_t *cpu_mem)
1298 unsigned int domain;
1300 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
1302 case AMDGPU_GEM_DOMAIN_VRAM:
1303 *vram_mem += amdgpu_bo_size(bo);
1305 case AMDGPU_GEM_DOMAIN_GTT:
1306 *gtt_mem += amdgpu_bo_size(bo);
1308 case AMDGPU_GEM_DOMAIN_CPU:
1310 *cpu_mem += amdgpu_bo_size(bo);
1316 * amdgpu_bo_release_notify - notification about a BO being released
1317 * @bo: pointer to a buffer object
1319 * Wipes VRAM buffers whose contents should not be leaked before the
1320 * memory is released.
1322 void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
1324 struct dma_fence *fence = NULL;
1325 struct amdgpu_bo *abo;
1328 if (!amdgpu_bo_is_amdgpu_bo(bo))
1331 abo = ttm_to_amdgpu_bo(bo);
1334 amdgpu_amdkfd_unreserve_memory_limit(abo);
1336 /* We only remove the fence if the resv has individualized. */
1337 WARN_ON_ONCE(bo->type == ttm_bo_type_kernel
1338 && bo->base.resv != &bo->base._resv);
1339 if (bo->base.resv == &bo->base._resv)
1340 amdgpu_amdkfd_remove_fence_on_pt_pd_bos(abo);
1342 if (bo->resource->mem_type != TTM_PL_VRAM ||
1343 !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE))
1346 dma_resv_lock(bo->base.resv, NULL);
1348 r = amdgpu_fill_buffer(abo, AMDGPU_POISON, bo->base.resv, &fence);
1350 amdgpu_bo_fence(abo, fence, false);
1351 dma_fence_put(fence);
1354 dma_resv_unlock(bo->base.resv);
1358 * amdgpu_bo_fault_reserve_notify - notification about a memory fault
1359 * @bo: pointer to a buffer object
1361 * Notifies the driver we are taking a fault on this BO and have reserved it,
1362 * also performs bookkeeping.
1363 * TTM driver callback for dealing with vm faults.
1366 * 0 for success or a negative error code on failure.
1368 vm_fault_t amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
1370 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1371 struct ttm_operation_ctx ctx = { false, false };
1372 struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo);
1373 unsigned long offset;
1376 /* Remember that this BO was accessed by the CPU */
1377 abo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
1379 if (bo->resource->mem_type != TTM_PL_VRAM)
1382 offset = bo->resource->start << PAGE_SHIFT;
1383 if ((offset + bo->base.size) <= adev->gmc.visible_vram_size)
1386 /* Can't move a pinned BO to visible VRAM */
1387 if (abo->tbo.pin_count > 0)
1388 return VM_FAULT_SIGBUS;
1390 /* hurrah the memory is not visible ! */
1391 atomic64_inc(&adev->num_vram_cpu_page_faults);
1392 amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM |
1393 AMDGPU_GEM_DOMAIN_GTT);
1395 /* Avoid costly evictions; only set GTT as a busy placement */
1396 abo->placement.num_busy_placement = 1;
1397 abo->placement.busy_placement = &abo->placements[1];
1399 r = ttm_bo_validate(bo, &abo->placement, &ctx);
1400 if (unlikely(r == -EBUSY || r == -ERESTARTSYS))
1401 return VM_FAULT_NOPAGE;
1402 else if (unlikely(r))
1403 return VM_FAULT_SIGBUS;
1405 offset = bo->resource->start << PAGE_SHIFT;
1406 /* this should never happen */
1407 if (bo->resource->mem_type == TTM_PL_VRAM &&
1408 (offset + bo->base.size) > adev->gmc.visible_vram_size)
1409 return VM_FAULT_SIGBUS;
1411 ttm_bo_move_to_lru_tail_unlocked(bo);
1416 * amdgpu_bo_fence - add fence to buffer object
1418 * @bo: buffer object in question
1419 * @fence: fence to add
1420 * @shared: true if fence should be added shared
1423 void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence,
1426 struct dma_resv *resv = bo->tbo.base.resv;
1429 dma_resv_add_shared_fence(resv, fence);
1431 dma_resv_add_excl_fence(resv, fence);
1435 * amdgpu_bo_sync_wait_resv - Wait for BO reservation fences
1437 * @adev: amdgpu device pointer
1438 * @resv: reservation object to sync to
1439 * @sync_mode: synchronization mode
1440 * @owner: fence owner
1441 * @intr: Whether the wait is interruptible
1443 * Extract the fences from the reservation object and waits for them to finish.
1446 * 0 on success, errno otherwise.
1448 int amdgpu_bo_sync_wait_resv(struct amdgpu_device *adev, struct dma_resv *resv,
1449 enum amdgpu_sync_mode sync_mode, void *owner,
1452 struct amdgpu_sync sync;
1455 amdgpu_sync_create(&sync);
1456 amdgpu_sync_resv(adev, &sync, resv, sync_mode, owner);
1457 r = amdgpu_sync_wait(&sync, intr);
1458 amdgpu_sync_free(&sync);
1463 * amdgpu_bo_sync_wait - Wrapper for amdgpu_bo_sync_wait_resv
1464 * @bo: buffer object to wait for
1465 * @owner: fence owner
1466 * @intr: Whether the wait is interruptible
1468 * Wrapper to wait for fences in a BO.
1470 * 0 on success, errno otherwise.
1472 int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr)
1474 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1476 return amdgpu_bo_sync_wait_resv(adev, bo->tbo.base.resv,
1477 AMDGPU_SYNC_NE_OWNER, owner, intr);
1481 * amdgpu_bo_gpu_offset - return GPU offset of bo
1482 * @bo: amdgpu object for which we query the offset
1484 * Note: object should either be pinned or reserved when calling this
1485 * function, it might be useful to add check for this for debugging.
1488 * current GPU offset of the object.
1490 u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
1492 WARN_ON_ONCE(bo->tbo.resource->mem_type == TTM_PL_SYSTEM);
1493 WARN_ON_ONCE(!dma_resv_is_locked(bo->tbo.base.resv) &&
1494 !bo->tbo.pin_count && bo->tbo.type != ttm_bo_type_kernel);
1495 WARN_ON_ONCE(bo->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET);
1496 WARN_ON_ONCE(bo->tbo.resource->mem_type == TTM_PL_VRAM &&
1497 !(bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS));
1499 return amdgpu_bo_gpu_offset_no_check(bo);
1503 * amdgpu_bo_gpu_offset_no_check - return GPU offset of bo
1504 * @bo: amdgpu object for which we query the offset
1507 * current GPU offset of the object without raising warnings.
1509 u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo)
1511 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1514 offset = (bo->tbo.resource->start << PAGE_SHIFT) +
1515 amdgpu_ttm_domain_start(adev, bo->tbo.resource->mem_type);
1517 return amdgpu_gmc_sign_extend(offset);
1521 * amdgpu_bo_get_preferred_pin_domain - get preferred domain for scanout
1522 * @adev: amdgpu device object
1523 * @domain: allowed :ref:`memory domains <amdgpu_memory_domains>`
1526 * Which of the allowed domains is preferred for pinning the BO for scanout.
1528 uint32_t amdgpu_bo_get_preferred_pin_domain(struct amdgpu_device *adev,
1531 if (domain == (AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT)) {
1532 domain = AMDGPU_GEM_DOMAIN_VRAM;
1533 if (adev->gmc.real_vram_size <= AMDGPU_SG_THRESHOLD)
1534 domain = AMDGPU_GEM_DOMAIN_GTT;
1539 #if defined(CONFIG_DEBUG_FS)
1540 #define amdgpu_bo_print_flag(m, bo, flag) \
1542 if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
1543 seq_printf((m), " " #flag); \
1548 * amdgpu_bo_print_info - print BO info in debugfs file
1550 * @id: Index or Id of the BO
1551 * @bo: Requested BO for printing info
1554 * Print BO information in debugfs file
1557 * Size of the BO in bytes.
1559 u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m)
1561 struct dma_buf_attachment *attachment;
1562 struct dma_buf *dma_buf;
1563 unsigned int domain;
1564 const char *placement;
1565 unsigned int pin_count;
1568 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
1570 case AMDGPU_GEM_DOMAIN_VRAM:
1573 case AMDGPU_GEM_DOMAIN_GTT:
1576 case AMDGPU_GEM_DOMAIN_CPU:
1582 size = amdgpu_bo_size(bo);
1583 seq_printf(m, "\t\t0x%08x: %12lld byte %s",
1584 id, size, placement);
1586 pin_count = READ_ONCE(bo->tbo.pin_count);
1588 seq_printf(m, " pin count %d", pin_count);
1590 dma_buf = READ_ONCE(bo->tbo.base.dma_buf);
1591 attachment = READ_ONCE(bo->tbo.base.import_attach);
1594 seq_printf(m, " imported from %p", dma_buf);
1596 seq_printf(m, " exported as %p", dma_buf);
1598 amdgpu_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
1599 amdgpu_bo_print_flag(m, bo, NO_CPU_ACCESS);
1600 amdgpu_bo_print_flag(m, bo, CPU_GTT_USWC);
1601 amdgpu_bo_print_flag(m, bo, VRAM_CLEARED);
1602 amdgpu_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
1603 amdgpu_bo_print_flag(m, bo, VM_ALWAYS_VALID);
1604 amdgpu_bo_print_flag(m, bo, EXPLICIT_SYNC);