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/drm_drv.h>
37 #include <drm/amdgpu_drm.h>
38 #include <drm/drm_cache.h>
40 #include "amdgpu_trace.h"
41 #include "amdgpu_amdkfd.h"
46 * This defines the interfaces to operate on an &amdgpu_bo buffer object which
47 * represents memory used by driver (VRAM, system memory, etc.). The driver
48 * provides DRM/GEM APIs to userspace. DRM/GEM APIs then use these interfaces
49 * to create/destroy/set buffer object which are then managed by the kernel TTM
51 * The interfaces are also used internally by kernel clients, including gfx,
52 * uvd, etc. for kernel managed allocations used by the GPU.
56 static void amdgpu_bo_destroy(struct ttm_buffer_object *tbo)
58 struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
62 if (bo->tbo.base.import_attach)
63 drm_prime_gem_destroy(&bo->tbo.base, bo->tbo.sg);
64 drm_gem_object_release(&bo->tbo.base);
65 amdgpu_bo_unref(&bo->parent);
69 static void amdgpu_bo_user_destroy(struct ttm_buffer_object *tbo)
71 struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
72 struct amdgpu_bo_user *ubo;
74 ubo = to_amdgpu_bo_user(bo);
76 amdgpu_bo_destroy(tbo);
79 static void amdgpu_bo_vm_destroy(struct ttm_buffer_object *tbo)
81 struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
82 struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
83 struct amdgpu_bo_vm *vmbo;
85 vmbo = to_amdgpu_bo_vm(bo);
86 /* in case amdgpu_device_recover_vram got NULL of bo->parent */
87 if (!list_empty(&vmbo->shadow_list)) {
88 mutex_lock(&adev->shadow_list_lock);
89 list_del_init(&vmbo->shadow_list);
90 mutex_unlock(&adev->shadow_list_lock);
93 amdgpu_bo_destroy(tbo);
97 * amdgpu_bo_is_amdgpu_bo - check if the buffer object is an &amdgpu_bo
98 * @bo: buffer object to be checked
100 * Uses destroy function associated with the object to determine if this is
104 * true if the object belongs to &amdgpu_bo, false if not.
106 bool amdgpu_bo_is_amdgpu_bo(struct ttm_buffer_object *bo)
108 if (bo->destroy == &amdgpu_bo_destroy ||
109 bo->destroy == &amdgpu_bo_user_destroy ||
110 bo->destroy == &amdgpu_bo_vm_destroy)
117 * amdgpu_bo_placement_from_domain - set buffer's placement
118 * @abo: &amdgpu_bo buffer object whose placement is to be set
119 * @domain: requested domain
121 * Sets buffer's placement according to requested domain and the buffer's
124 void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain)
126 struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
127 struct ttm_placement *placement = &abo->placement;
128 struct ttm_place *places = abo->placements;
129 u64 flags = abo->flags;
132 if (domain & AMDGPU_GEM_DOMAIN_VRAM) {
133 unsigned visible_pfn = adev->gmc.visible_vram_size >> PAGE_SHIFT;
137 places[c].mem_type = TTM_PL_VRAM;
140 if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
141 places[c].lpfn = visible_pfn;
142 else if (adev->gmc.real_vram_size != adev->gmc.visible_vram_size)
143 places[c].flags |= TTM_PL_FLAG_TOPDOWN;
145 if (flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)
146 places[c].flags |= TTM_PL_FLAG_CONTIGUOUS;
150 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
154 abo->flags & AMDGPU_GEM_CREATE_PREEMPTIBLE ?
155 AMDGPU_PL_PREEMPT : TTM_PL_TT;
160 if (domain & AMDGPU_GEM_DOMAIN_CPU) {
163 places[c].mem_type = TTM_PL_SYSTEM;
168 if (domain & AMDGPU_GEM_DOMAIN_GDS) {
171 places[c].mem_type = AMDGPU_PL_GDS;
176 if (domain & AMDGPU_GEM_DOMAIN_GWS) {
179 places[c].mem_type = AMDGPU_PL_GWS;
184 if (domain & AMDGPU_GEM_DOMAIN_OA) {
187 places[c].mem_type = AMDGPU_PL_OA;
195 places[c].mem_type = TTM_PL_SYSTEM;
200 BUG_ON(c > AMDGPU_BO_MAX_PLACEMENTS);
202 placement->num_placement = c;
203 placement->placement = places;
205 placement->num_busy_placement = c;
206 placement->busy_placement = places;
210 * amdgpu_bo_create_reserved - create reserved BO for kernel use
212 * @adev: amdgpu device object
213 * @size: size for the new BO
214 * @align: alignment for the new BO
215 * @domain: where to place it
216 * @bo_ptr: used to initialize BOs in structures
217 * @gpu_addr: GPU addr of the pinned BO
218 * @cpu_addr: optional CPU address mapping
220 * Allocates and pins a BO for kernel internal use, and returns it still
223 * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
226 * 0 on success, negative error code otherwise.
228 int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
229 unsigned long size, int align,
230 u32 domain, struct amdgpu_bo **bo_ptr,
231 u64 *gpu_addr, void **cpu_addr)
233 struct amdgpu_bo_param bp;
238 amdgpu_bo_unref(bo_ptr);
242 memset(&bp, 0, sizeof(bp));
244 bp.byte_align = align;
246 bp.flags = cpu_addr ? AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED
247 : AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
248 bp.flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
249 bp.type = ttm_bo_type_kernel;
251 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
254 r = amdgpu_bo_create(adev, &bp, bo_ptr);
256 dev_err(adev->dev, "(%d) failed to allocate kernel bo\n",
263 r = amdgpu_bo_reserve(*bo_ptr, false);
265 dev_err(adev->dev, "(%d) failed to reserve kernel bo\n", r);
269 r = amdgpu_bo_pin(*bo_ptr, domain);
271 dev_err(adev->dev, "(%d) kernel bo pin failed\n", r);
272 goto error_unreserve;
275 r = amdgpu_ttm_alloc_gart(&(*bo_ptr)->tbo);
277 dev_err(adev->dev, "%p bind failed\n", *bo_ptr);
282 *gpu_addr = amdgpu_bo_gpu_offset(*bo_ptr);
285 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
287 dev_err(adev->dev, "(%d) kernel bo map failed\n", r);
295 amdgpu_bo_unpin(*bo_ptr);
297 amdgpu_bo_unreserve(*bo_ptr);
301 amdgpu_bo_unref(bo_ptr);
307 * amdgpu_bo_create_kernel - create BO for kernel use
309 * @adev: amdgpu device object
310 * @size: size for the new BO
311 * @align: alignment for the new BO
312 * @domain: where to place it
313 * @bo_ptr: used to initialize BOs in structures
314 * @gpu_addr: GPU addr of the pinned BO
315 * @cpu_addr: optional CPU address mapping
317 * Allocates and pins a BO for kernel internal use.
319 * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
322 * 0 on success, negative error code otherwise.
324 int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
325 unsigned long size, int align,
326 u32 domain, struct amdgpu_bo **bo_ptr,
327 u64 *gpu_addr, void **cpu_addr)
331 r = amdgpu_bo_create_reserved(adev, size, align, domain, bo_ptr,
338 amdgpu_bo_unreserve(*bo_ptr);
344 * amdgpu_bo_create_kernel_at - create BO for kernel use at specific location
346 * @adev: amdgpu device object
347 * @offset: offset of the BO
348 * @size: size of the BO
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 VRAM.
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,
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,
369 AMDGPU_GEM_DOMAIN_VRAM, bo_ptr, NULL,
374 if ((*bo_ptr) == NULL)
378 * Remove the original mem node and create a new one at the request
382 amdgpu_bo_kunmap(*bo_ptr);
384 ttm_resource_free(&(*bo_ptr)->tbo, &(*bo_ptr)->tbo.resource);
386 for (i = 0; i < (*bo_ptr)->placement.num_placement; ++i) {
387 (*bo_ptr)->placements[i].fpfn = offset >> PAGE_SHIFT;
388 (*bo_ptr)->placements[i].lpfn = (offset + size) >> PAGE_SHIFT;
390 r = ttm_bo_mem_space(&(*bo_ptr)->tbo, &(*bo_ptr)->placement,
391 &(*bo_ptr)->tbo.resource, &ctx);
396 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
401 amdgpu_bo_unreserve(*bo_ptr);
405 amdgpu_bo_unreserve(*bo_ptr);
406 amdgpu_bo_unref(bo_ptr);
411 * amdgpu_bo_free_kernel - free BO for kernel use
413 * @bo: amdgpu BO to free
414 * @gpu_addr: pointer to where the BO's GPU memory space address was stored
415 * @cpu_addr: pointer to where the BO's CPU memory space address was stored
417 * unmaps and unpin a BO for kernel internal use.
419 void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
425 WARN_ON(amdgpu_ttm_adev((*bo)->tbo.bdev)->in_suspend);
427 if (likely(amdgpu_bo_reserve(*bo, true) == 0)) {
429 amdgpu_bo_kunmap(*bo);
431 amdgpu_bo_unpin(*bo);
432 amdgpu_bo_unreserve(*bo);
443 /* Validate bo size is bit bigger then the request domain */
444 static bool amdgpu_bo_validate_size(struct amdgpu_device *adev,
445 unsigned long size, u32 domain)
447 struct ttm_resource_manager *man = NULL;
450 * If GTT is part of requested domains the check must succeed to
451 * allow fall back to GTT.
453 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
454 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT);
456 if (man && size < man->size)
459 WARN_ON_ONCE("GTT domain requested but GTT mem manager uninitialized");
461 } else if (domain & AMDGPU_GEM_DOMAIN_VRAM) {
462 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
464 if (man && size < man->size)
469 /* TODO add more domains checks, such as AMDGPU_GEM_DOMAIN_CPU */
474 DRM_DEBUG("BO size %lu > total memory in domain: %llu\n", size,
479 bool amdgpu_bo_support_uswc(u64 bo_flags)
483 /* XXX: Write-combined CPU mappings of GTT seem broken on 32-bit
484 * See https://bugs.freedesktop.org/show_bug.cgi?id=84627
487 #elif defined(CONFIG_X86) && !defined(CONFIG_X86_PAT)
488 /* Don't try to enable write-combining when it can't work, or things
490 * See https://bugs.freedesktop.org/show_bug.cgi?id=88758
493 #ifndef CONFIG_COMPILE_TEST
494 #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \
495 thanks to write-combining
498 if (bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)
499 DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for "
500 "better performance thanks to write-combining\n");
503 /* For architectures that don't support WC memory,
504 * mask out the WC flag from the BO
506 if (!drm_arch_can_wc_memory())
514 * amdgpu_bo_create - create an &amdgpu_bo buffer object
515 * @adev: amdgpu device object
516 * @bp: parameters to be used for the buffer object
517 * @bo_ptr: pointer to the buffer object pointer
519 * Creates an &amdgpu_bo buffer object.
522 * 0 for success or a negative error code on failure.
524 int amdgpu_bo_create(struct amdgpu_device *adev,
525 struct amdgpu_bo_param *bp,
526 struct amdgpu_bo **bo_ptr)
528 struct ttm_operation_ctx ctx = {
529 .interruptible = (bp->type != ttm_bo_type_kernel),
530 .no_wait_gpu = bp->no_wait_gpu,
531 /* We opt to avoid OOM on system pages allocations */
532 .gfp_retry_mayfail = true,
533 .allow_res_evict = bp->type != ttm_bo_type_kernel,
536 struct amdgpu_bo *bo;
537 unsigned long page_align, size = bp->size;
540 /* Note that GDS/GWS/OA allocates 1 page per byte/resource. */
541 if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
542 /* GWS and OA don't need any alignment. */
543 page_align = bp->byte_align;
546 } else if (bp->domain & AMDGPU_GEM_DOMAIN_GDS) {
547 /* Both size and alignment must be a multiple of 4. */
548 page_align = ALIGN(bp->byte_align, 4);
549 size = ALIGN(size, 4) << PAGE_SHIFT;
551 /* Memory should be aligned at least to a page size. */
552 page_align = ALIGN(bp->byte_align, PAGE_SIZE) >> PAGE_SHIFT;
553 size = ALIGN(size, PAGE_SIZE);
556 if (!amdgpu_bo_validate_size(adev, size, bp->domain))
559 BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo));
562 bo = kvzalloc(bp->bo_ptr_size, GFP_KERNEL);
565 drm_gem_private_object_init(adev_to_drm(adev), &bo->tbo.base, size);
567 bo->preferred_domains = bp->preferred_domain ? bp->preferred_domain :
569 bo->allowed_domains = bo->preferred_domains;
570 if (bp->type != ttm_bo_type_kernel &&
571 !(bp->flags & AMDGPU_GEM_CREATE_DISCARDABLE) &&
572 bo->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
573 bo->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
575 bo->flags = bp->flags;
577 if (!amdgpu_bo_support_uswc(bo->flags))
578 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
580 if (adev->ras_enabled)
581 bo->flags |= AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE;
583 bo->tbo.bdev = &adev->mman.bdev;
584 if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA |
585 AMDGPU_GEM_DOMAIN_GDS))
586 amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_CPU);
588 amdgpu_bo_placement_from_domain(bo, bp->domain);
589 if (bp->type == ttm_bo_type_kernel)
590 bo->tbo.priority = 1;
593 bp->destroy = &amdgpu_bo_destroy;
595 r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, bp->type,
596 &bo->placement, page_align, &ctx, NULL,
597 bp->resv, bp->destroy);
598 if (unlikely(r != 0))
601 if (!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
602 bo->tbo.resource->mem_type == TTM_PL_VRAM &&
603 amdgpu_bo_in_cpu_visible_vram(bo))
604 amdgpu_cs_report_moved_bytes(adev, ctx.bytes_moved,
607 amdgpu_cs_report_moved_bytes(adev, ctx.bytes_moved, 0);
609 if (bp->flags & AMDGPU_GEM_CREATE_VRAM_CLEARED &&
610 bo->tbo.resource->mem_type == TTM_PL_VRAM) {
611 struct dma_fence *fence;
613 r = amdgpu_fill_buffer(bo, 0, bo->tbo.base.resv, &fence);
617 dma_resv_add_fence(bo->tbo.base.resv, fence,
618 DMA_RESV_USAGE_KERNEL);
619 dma_fence_put(fence);
622 amdgpu_bo_unreserve(bo);
625 trace_amdgpu_bo_create(bo);
627 /* Treat CPU_ACCESS_REQUIRED only as a hint if given by UMD */
628 if (bp->type == ttm_bo_type_device)
629 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
635 dma_resv_unlock(bo->tbo.base.resv);
636 amdgpu_bo_unref(&bo);
641 * amdgpu_bo_create_user - create an &amdgpu_bo_user buffer object
642 * @adev: amdgpu device object
643 * @bp: parameters to be used for the buffer object
644 * @ubo_ptr: pointer to the buffer object pointer
646 * Create a BO to be used by user application;
649 * 0 for success or a negative error code on failure.
652 int amdgpu_bo_create_user(struct amdgpu_device *adev,
653 struct amdgpu_bo_param *bp,
654 struct amdgpu_bo_user **ubo_ptr)
656 struct amdgpu_bo *bo_ptr;
659 bp->bo_ptr_size = sizeof(struct amdgpu_bo_user);
660 bp->destroy = &amdgpu_bo_user_destroy;
661 r = amdgpu_bo_create(adev, bp, &bo_ptr);
665 *ubo_ptr = to_amdgpu_bo_user(bo_ptr);
670 * amdgpu_bo_create_vm - create an &amdgpu_bo_vm buffer object
671 * @adev: amdgpu device object
672 * @bp: parameters to be used for the buffer object
673 * @vmbo_ptr: pointer to the buffer object pointer
675 * Create a BO to be for GPUVM.
678 * 0 for success or a negative error code on failure.
681 int amdgpu_bo_create_vm(struct amdgpu_device *adev,
682 struct amdgpu_bo_param *bp,
683 struct amdgpu_bo_vm **vmbo_ptr)
685 struct amdgpu_bo *bo_ptr;
688 /* bo_ptr_size will be determined by the caller and it depends on
689 * num of amdgpu_vm_pt entries.
691 BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo_vm));
692 r = amdgpu_bo_create(adev, bp, &bo_ptr);
696 *vmbo_ptr = to_amdgpu_bo_vm(bo_ptr);
697 INIT_LIST_HEAD(&(*vmbo_ptr)->shadow_list);
698 /* Set destroy callback to amdgpu_bo_vm_destroy after vmbo->shadow_list
701 bo_ptr->tbo.destroy = &amdgpu_bo_vm_destroy;
706 * amdgpu_bo_add_to_shadow_list - add a BO to the shadow list
708 * @vmbo: BO that will be inserted into the shadow list
710 * Insert a BO to the shadow list.
712 void amdgpu_bo_add_to_shadow_list(struct amdgpu_bo_vm *vmbo)
714 struct amdgpu_device *adev = amdgpu_ttm_adev(vmbo->bo.tbo.bdev);
716 mutex_lock(&adev->shadow_list_lock);
717 list_add_tail(&vmbo->shadow_list, &adev->shadow_list);
718 mutex_unlock(&adev->shadow_list_lock);
722 * amdgpu_bo_restore_shadow - restore an &amdgpu_bo shadow
724 * @shadow: &amdgpu_bo shadow to be restored
725 * @fence: dma_fence associated with the operation
727 * Copies a buffer object's shadow content back to the object.
728 * This is used for recovering a buffer from its shadow in case of a gpu
729 * reset where vram context may be lost.
732 * 0 for success or a negative error code on failure.
734 int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow, struct dma_fence **fence)
737 struct amdgpu_device *adev = amdgpu_ttm_adev(shadow->tbo.bdev);
738 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
739 uint64_t shadow_addr, parent_addr;
741 shadow_addr = amdgpu_bo_gpu_offset(shadow);
742 parent_addr = amdgpu_bo_gpu_offset(shadow->parent);
744 return amdgpu_copy_buffer(ring, shadow_addr, parent_addr,
745 amdgpu_bo_size(shadow), NULL, fence,
750 * amdgpu_bo_kmap - map an &amdgpu_bo buffer object
751 * @bo: &amdgpu_bo buffer object to be mapped
752 * @ptr: kernel virtual address to be returned
754 * Calls ttm_bo_kmap() to set up the kernel virtual mapping; calls
755 * amdgpu_bo_kptr() to get the kernel virtual address.
758 * 0 for success or a negative error code on failure.
760 int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr)
765 if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
768 r = dma_resv_wait_timeout(bo->tbo.base.resv, DMA_RESV_USAGE_KERNEL,
769 false, MAX_SCHEDULE_TIMEOUT);
773 kptr = amdgpu_bo_kptr(bo);
780 r = ttm_bo_kmap(&bo->tbo, 0, PFN_UP(bo->tbo.base.size), &bo->kmap);
785 *ptr = amdgpu_bo_kptr(bo);
791 * amdgpu_bo_kptr - returns a kernel virtual address of the buffer object
792 * @bo: &amdgpu_bo buffer object
794 * Calls ttm_kmap_obj_virtual() to get the kernel virtual address
797 * the virtual address of a buffer object area.
799 void *amdgpu_bo_kptr(struct amdgpu_bo *bo)
803 return ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
807 * amdgpu_bo_kunmap - unmap an &amdgpu_bo buffer object
808 * @bo: &amdgpu_bo buffer object to be unmapped
810 * Unmaps a kernel map set up by amdgpu_bo_kmap().
812 void amdgpu_bo_kunmap(struct amdgpu_bo *bo)
815 ttm_bo_kunmap(&bo->kmap);
819 * amdgpu_bo_ref - reference an &amdgpu_bo buffer object
820 * @bo: &amdgpu_bo buffer object
822 * References the contained &ttm_buffer_object.
825 * a refcounted pointer to the &amdgpu_bo buffer object.
827 struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo)
832 ttm_bo_get(&bo->tbo);
837 * amdgpu_bo_unref - unreference an &amdgpu_bo buffer object
838 * @bo: &amdgpu_bo buffer object
840 * Unreferences the contained &ttm_buffer_object and clear the pointer
842 void amdgpu_bo_unref(struct amdgpu_bo **bo)
844 struct ttm_buffer_object *tbo;
855 * amdgpu_bo_pin_restricted - pin an &amdgpu_bo buffer object
856 * @bo: &amdgpu_bo buffer object to be pinned
857 * @domain: domain to be pinned to
858 * @min_offset: the start of requested address range
859 * @max_offset: the end of requested address range
861 * Pins the buffer object according to requested domain and address range. If
862 * the memory is unbound gart memory, binds the pages into gart table. Adjusts
863 * pin_count and pin_size accordingly.
865 * Pinning means to lock pages in memory along with keeping them at a fixed
866 * offset. It is required when a buffer can not be moved, for example, when
867 * a display buffer is being scanned out.
869 * Compared with amdgpu_bo_pin(), this function gives more flexibility on
870 * where to pin a buffer if there are specific restrictions on where a buffer
874 * 0 for success or a negative error code on failure.
876 int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
877 u64 min_offset, u64 max_offset)
879 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
880 struct ttm_operation_ctx ctx = { false, false };
883 if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm))
886 if (WARN_ON_ONCE(min_offset > max_offset))
889 /* Check domain to be pinned to against preferred domains */
890 if (bo->preferred_domains & domain)
891 domain = bo->preferred_domains & domain;
893 /* A shared bo cannot be migrated to VRAM */
894 if (bo->tbo.base.import_attach) {
895 if (domain & AMDGPU_GEM_DOMAIN_GTT)
896 domain = AMDGPU_GEM_DOMAIN_GTT;
901 if (bo->tbo.pin_count) {
902 uint32_t mem_type = bo->tbo.resource->mem_type;
903 uint32_t mem_flags = bo->tbo.resource->placement;
905 if (!(domain & amdgpu_mem_type_to_domain(mem_type)))
908 if ((mem_type == TTM_PL_VRAM) &&
909 (bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) &&
910 !(mem_flags & TTM_PL_FLAG_CONTIGUOUS))
913 ttm_bo_pin(&bo->tbo);
915 if (max_offset != 0) {
916 u64 domain_start = amdgpu_ttm_domain_start(adev,
918 WARN_ON_ONCE(max_offset <
919 (amdgpu_bo_gpu_offset(bo) - domain_start));
925 /* This assumes only APU display buffers are pinned with (VRAM|GTT).
926 * See function amdgpu_display_supported_domains()
928 domain = amdgpu_bo_get_preferred_domain(adev, domain);
930 if (bo->tbo.base.import_attach)
931 dma_buf_pin(bo->tbo.base.import_attach);
933 /* force to pin into visible video ram */
934 if (!(bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS))
935 bo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
936 amdgpu_bo_placement_from_domain(bo, domain);
937 for (i = 0; i < bo->placement.num_placement; i++) {
940 fpfn = min_offset >> PAGE_SHIFT;
941 lpfn = max_offset >> PAGE_SHIFT;
943 if (fpfn > bo->placements[i].fpfn)
944 bo->placements[i].fpfn = fpfn;
945 if (!bo->placements[i].lpfn ||
946 (lpfn && lpfn < bo->placements[i].lpfn))
947 bo->placements[i].lpfn = lpfn;
950 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
952 dev_err(adev->dev, "%p pin failed\n", bo);
956 ttm_bo_pin(&bo->tbo);
958 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
959 if (domain == AMDGPU_GEM_DOMAIN_VRAM) {
960 atomic64_add(amdgpu_bo_size(bo), &adev->vram_pin_size);
961 atomic64_add(amdgpu_vram_mgr_bo_visible_size(bo),
962 &adev->visible_pin_size);
963 } else if (domain == AMDGPU_GEM_DOMAIN_GTT) {
964 atomic64_add(amdgpu_bo_size(bo), &adev->gart_pin_size);
972 * amdgpu_bo_pin - pin an &amdgpu_bo buffer object
973 * @bo: &amdgpu_bo buffer object to be pinned
974 * @domain: domain to be pinned to
976 * A simple wrapper to amdgpu_bo_pin_restricted().
977 * Provides a simpler API for buffers that do not have any strict restrictions
978 * on where a buffer must be located.
981 * 0 for success or a negative error code on failure.
983 int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain)
985 bo->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
986 return amdgpu_bo_pin_restricted(bo, domain, 0, 0);
990 * amdgpu_bo_unpin - unpin an &amdgpu_bo buffer object
991 * @bo: &amdgpu_bo buffer object to be unpinned
993 * Decreases the pin_count, and clears the flags if pin_count reaches 0.
994 * Changes placement and pin size accordingly.
997 * 0 for success or a negative error code on failure.
999 void amdgpu_bo_unpin(struct amdgpu_bo *bo)
1001 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1003 ttm_bo_unpin(&bo->tbo);
1004 if (bo->tbo.pin_count)
1007 if (bo->tbo.base.import_attach)
1008 dma_buf_unpin(bo->tbo.base.import_attach);
1010 if (bo->tbo.resource->mem_type == TTM_PL_VRAM) {
1011 atomic64_sub(amdgpu_bo_size(bo), &adev->vram_pin_size);
1012 atomic64_sub(amdgpu_vram_mgr_bo_visible_size(bo),
1013 &adev->visible_pin_size);
1014 } else if (bo->tbo.resource->mem_type == TTM_PL_TT) {
1015 atomic64_sub(amdgpu_bo_size(bo), &adev->gart_pin_size);
1019 static const char *amdgpu_vram_names[] = {
1036 * amdgpu_bo_init - initialize memory manager
1037 * @adev: amdgpu device object
1039 * Calls amdgpu_ttm_init() to initialize amdgpu memory manager.
1042 * 0 for success or a negative error code on failure.
1044 int amdgpu_bo_init(struct amdgpu_device *adev)
1046 /* On A+A platform, VRAM can be mapped as WB */
1047 if (!adev->gmc.xgmi.connected_to_cpu) {
1048 /* reserve PAT memory space to WC for VRAM */
1049 int r = arch_io_reserve_memtype_wc(adev->gmc.aper_base,
1050 adev->gmc.aper_size);
1053 DRM_ERROR("Unable to set WC memtype for the aperture base\n");
1057 /* Add an MTRR for the VRAM */
1058 adev->gmc.vram_mtrr = arch_phys_wc_add(adev->gmc.aper_base,
1059 adev->gmc.aper_size);
1062 DRM_INFO("Detected VRAM RAM=%lluM, BAR=%lluM\n",
1063 adev->gmc.mc_vram_size >> 20,
1064 (unsigned long long)adev->gmc.aper_size >> 20);
1065 DRM_INFO("RAM width %dbits %s\n",
1066 adev->gmc.vram_width, amdgpu_vram_names[adev->gmc.vram_type]);
1067 return amdgpu_ttm_init(adev);
1071 * amdgpu_bo_fini - tear down memory manager
1072 * @adev: amdgpu device object
1074 * Reverses amdgpu_bo_init() to tear down memory manager.
1076 void amdgpu_bo_fini(struct amdgpu_device *adev)
1080 amdgpu_ttm_fini(adev);
1082 if (drm_dev_enter(adev_to_drm(adev), &idx)) {
1084 if (!adev->gmc.xgmi.connected_to_cpu) {
1085 arch_phys_wc_del(adev->gmc.vram_mtrr);
1086 arch_io_free_memtype_wc(adev->gmc.aper_base, adev->gmc.aper_size);
1093 * amdgpu_bo_set_tiling_flags - set tiling flags
1094 * @bo: &amdgpu_bo buffer object
1095 * @tiling_flags: new flags
1097 * Sets buffer object's tiling flags with the new one. Used by GEM ioctl or
1098 * kernel driver to set the tiling flags on a buffer.
1101 * 0 for success or a negative error code on failure.
1103 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags)
1105 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1106 struct amdgpu_bo_user *ubo;
1108 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1109 if (adev->family <= AMDGPU_FAMILY_CZ &&
1110 AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT) > 6)
1113 ubo = to_amdgpu_bo_user(bo);
1114 ubo->tiling_flags = tiling_flags;
1119 * amdgpu_bo_get_tiling_flags - get tiling flags
1120 * @bo: &amdgpu_bo buffer object
1121 * @tiling_flags: returned flags
1123 * Gets buffer object's tiling flags. Used by GEM ioctl or kernel driver to
1124 * set the tiling flags on a buffer.
1126 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags)
1128 struct amdgpu_bo_user *ubo;
1130 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1131 dma_resv_assert_held(bo->tbo.base.resv);
1132 ubo = to_amdgpu_bo_user(bo);
1135 *tiling_flags = ubo->tiling_flags;
1139 * amdgpu_bo_set_metadata - set metadata
1140 * @bo: &amdgpu_bo buffer object
1141 * @metadata: new metadata
1142 * @metadata_size: size of the new metadata
1143 * @flags: flags of the new metadata
1145 * Sets buffer object's metadata, its size and flags.
1146 * Used via GEM ioctl.
1149 * 0 for success or a negative error code on failure.
1151 int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata,
1152 uint32_t metadata_size, uint64_t flags)
1154 struct amdgpu_bo_user *ubo;
1157 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1158 ubo = to_amdgpu_bo_user(bo);
1159 if (!metadata_size) {
1160 if (ubo->metadata_size) {
1161 kfree(ubo->metadata);
1162 ubo->metadata = NULL;
1163 ubo->metadata_size = 0;
1168 if (metadata == NULL)
1171 buffer = kmemdup(metadata, metadata_size, GFP_KERNEL);
1175 kfree(ubo->metadata);
1176 ubo->metadata_flags = flags;
1177 ubo->metadata = buffer;
1178 ubo->metadata_size = metadata_size;
1184 * amdgpu_bo_get_metadata - get metadata
1185 * @bo: &amdgpu_bo buffer object
1186 * @buffer: returned metadata
1187 * @buffer_size: size of the buffer
1188 * @metadata_size: size of the returned metadata
1189 * @flags: flags of the returned metadata
1191 * Gets buffer object's metadata, its size and flags. buffer_size shall not be
1192 * less than metadata_size.
1193 * Used via GEM ioctl.
1196 * 0 for success or a negative error code on failure.
1198 int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer,
1199 size_t buffer_size, uint32_t *metadata_size,
1202 struct amdgpu_bo_user *ubo;
1204 if (!buffer && !metadata_size)
1207 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1208 ubo = to_amdgpu_bo_user(bo);
1210 *metadata_size = ubo->metadata_size;
1213 if (buffer_size < ubo->metadata_size)
1216 if (ubo->metadata_size)
1217 memcpy(buffer, ubo->metadata, ubo->metadata_size);
1221 *flags = ubo->metadata_flags;
1227 * amdgpu_bo_move_notify - notification about a memory move
1228 * @bo: pointer to a buffer object
1229 * @evict: if this move is evicting the buffer from the graphics address space
1230 * @new_mem: new information of the bufer object
1232 * Marks the corresponding &amdgpu_bo buffer object as invalid, also performs
1234 * TTM driver callback which is called when ttm moves a buffer.
1236 void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
1238 struct ttm_resource *new_mem)
1240 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1241 struct amdgpu_bo *abo;
1242 struct ttm_resource *old_mem = bo->resource;
1244 if (!amdgpu_bo_is_amdgpu_bo(bo))
1247 abo = ttm_to_amdgpu_bo(bo);
1248 amdgpu_vm_bo_invalidate(adev, abo, evict);
1250 amdgpu_bo_kunmap(abo);
1252 if (abo->tbo.base.dma_buf && !abo->tbo.base.import_attach &&
1253 bo->resource->mem_type != TTM_PL_SYSTEM)
1254 dma_buf_move_notify(abo->tbo.base.dma_buf);
1256 /* remember the eviction */
1258 atomic64_inc(&adev->num_evictions);
1260 /* update statistics */
1264 /* move_notify is called before move happens */
1265 trace_amdgpu_bo_move(abo, new_mem->mem_type, old_mem->mem_type);
1268 void amdgpu_bo_get_memory(struct amdgpu_bo *bo,
1269 struct amdgpu_mem_stats *stats)
1271 unsigned int domain;
1272 uint64_t size = amdgpu_bo_size(bo);
1274 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
1276 case AMDGPU_GEM_DOMAIN_VRAM:
1277 stats->vram += size;
1278 if (amdgpu_bo_in_cpu_visible_vram(bo))
1279 stats->visible_vram += size;
1281 case AMDGPU_GEM_DOMAIN_GTT:
1284 case AMDGPU_GEM_DOMAIN_CPU:
1290 if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) {
1291 stats->requested_vram += size;
1292 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
1293 stats->requested_visible_vram += size;
1295 if (domain != AMDGPU_GEM_DOMAIN_VRAM) {
1296 stats->evicted_vram += size;
1297 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
1298 stats->evicted_visible_vram += size;
1300 } else if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_GTT) {
1301 stats->requested_gtt += size;
1306 * amdgpu_bo_release_notify - notification about a BO being released
1307 * @bo: pointer to a buffer object
1309 * Wipes VRAM buffers whose contents should not be leaked before the
1310 * memory is released.
1312 void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
1314 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1315 struct dma_fence *fence = NULL;
1316 struct amdgpu_bo *abo;
1319 if (!amdgpu_bo_is_amdgpu_bo(bo))
1322 abo = ttm_to_amdgpu_bo(bo);
1325 amdgpu_amdkfd_release_notify(abo);
1327 /* We only remove the fence if the resv has individualized. */
1328 WARN_ON_ONCE(bo->type == ttm_bo_type_kernel
1329 && bo->base.resv != &bo->base._resv);
1330 if (bo->base.resv == &bo->base._resv)
1331 amdgpu_amdkfd_remove_fence_on_pt_pd_bos(abo);
1333 if (!bo->resource || bo->resource->mem_type != TTM_PL_VRAM ||
1334 !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE) ||
1335 adev->in_suspend || drm_dev_is_unplugged(adev_to_drm(adev)))
1338 if (WARN_ON_ONCE(!dma_resv_trylock(bo->base.resv)))
1341 r = amdgpu_fill_buffer(abo, AMDGPU_POISON, bo->base.resv, &fence);
1343 amdgpu_bo_fence(abo, fence, false);
1344 dma_fence_put(fence);
1347 dma_resv_unlock(bo->base.resv);
1351 * amdgpu_bo_fault_reserve_notify - notification about a memory fault
1352 * @bo: pointer to a buffer object
1354 * Notifies the driver we are taking a fault on this BO and have reserved it,
1355 * also performs bookkeeping.
1356 * TTM driver callback for dealing with vm faults.
1359 * 0 for success or a negative error code on failure.
1361 vm_fault_t amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
1363 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1364 struct ttm_operation_ctx ctx = { false, false };
1365 struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo);
1368 /* Remember that this BO was accessed by the CPU */
1369 abo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
1371 if (bo->resource->mem_type != TTM_PL_VRAM)
1374 if (amdgpu_bo_in_cpu_visible_vram(abo))
1377 /* Can't move a pinned BO to visible VRAM */
1378 if (abo->tbo.pin_count > 0)
1379 return VM_FAULT_SIGBUS;
1381 /* hurrah the memory is not visible ! */
1382 atomic64_inc(&adev->num_vram_cpu_page_faults);
1383 amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM |
1384 AMDGPU_GEM_DOMAIN_GTT);
1386 /* Avoid costly evictions; only set GTT as a busy placement */
1387 abo->placement.num_busy_placement = 1;
1388 abo->placement.busy_placement = &abo->placements[1];
1390 r = ttm_bo_validate(bo, &abo->placement, &ctx);
1391 if (unlikely(r == -EBUSY || r == -ERESTARTSYS))
1392 return VM_FAULT_NOPAGE;
1393 else if (unlikely(r))
1394 return VM_FAULT_SIGBUS;
1396 /* this should never happen */
1397 if (bo->resource->mem_type == TTM_PL_VRAM &&
1398 !amdgpu_bo_in_cpu_visible_vram(abo))
1399 return VM_FAULT_SIGBUS;
1401 ttm_bo_move_to_lru_tail_unlocked(bo);
1406 * amdgpu_bo_fence - add fence to buffer object
1408 * @bo: buffer object in question
1409 * @fence: fence to add
1410 * @shared: true if fence should be added shared
1413 void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence,
1416 struct dma_resv *resv = bo->tbo.base.resv;
1419 r = dma_resv_reserve_fences(resv, 1);
1421 /* As last resort on OOM we block for the fence */
1422 dma_fence_wait(fence, false);
1426 dma_resv_add_fence(resv, fence, shared ? DMA_RESV_USAGE_READ :
1427 DMA_RESV_USAGE_WRITE);
1431 * amdgpu_bo_sync_wait_resv - Wait for BO reservation fences
1433 * @adev: amdgpu device pointer
1434 * @resv: reservation object to sync to
1435 * @sync_mode: synchronization mode
1436 * @owner: fence owner
1437 * @intr: Whether the wait is interruptible
1439 * Extract the fences from the reservation object and waits for them to finish.
1442 * 0 on success, errno otherwise.
1444 int amdgpu_bo_sync_wait_resv(struct amdgpu_device *adev, struct dma_resv *resv,
1445 enum amdgpu_sync_mode sync_mode, void *owner,
1448 struct amdgpu_sync sync;
1451 amdgpu_sync_create(&sync);
1452 amdgpu_sync_resv(adev, &sync, resv, sync_mode, owner);
1453 r = amdgpu_sync_wait(&sync, intr);
1454 amdgpu_sync_free(&sync);
1459 * amdgpu_bo_sync_wait - Wrapper for amdgpu_bo_sync_wait_resv
1460 * @bo: buffer object to wait for
1461 * @owner: fence owner
1462 * @intr: Whether the wait is interruptible
1464 * Wrapper to wait for fences in a BO.
1466 * 0 on success, errno otherwise.
1468 int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr)
1470 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1472 return amdgpu_bo_sync_wait_resv(adev, bo->tbo.base.resv,
1473 AMDGPU_SYNC_NE_OWNER, owner, intr);
1477 * amdgpu_bo_gpu_offset - return GPU offset of bo
1478 * @bo: amdgpu object for which we query the offset
1480 * Note: object should either be pinned or reserved when calling this
1481 * function, it might be useful to add check for this for debugging.
1484 * current GPU offset of the object.
1486 u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
1488 WARN_ON_ONCE(bo->tbo.resource->mem_type == TTM_PL_SYSTEM);
1489 WARN_ON_ONCE(!dma_resv_is_locked(bo->tbo.base.resv) &&
1490 !bo->tbo.pin_count && bo->tbo.type != ttm_bo_type_kernel);
1491 WARN_ON_ONCE(bo->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET);
1492 WARN_ON_ONCE(bo->tbo.resource->mem_type == TTM_PL_VRAM &&
1493 !(bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS));
1495 return amdgpu_bo_gpu_offset_no_check(bo);
1499 * amdgpu_bo_gpu_offset_no_check - return GPU offset of bo
1500 * @bo: amdgpu object for which we query the offset
1503 * current GPU offset of the object without raising warnings.
1505 u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo)
1507 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1510 offset = (bo->tbo.resource->start << PAGE_SHIFT) +
1511 amdgpu_ttm_domain_start(adev, bo->tbo.resource->mem_type);
1513 return amdgpu_gmc_sign_extend(offset);
1517 * amdgpu_bo_get_preferred_domain - get preferred domain
1518 * @adev: amdgpu device object
1519 * @domain: allowed :ref:`memory domains <amdgpu_memory_domains>`
1522 * Which of the allowed domains is preferred for allocating the BO.
1524 uint32_t amdgpu_bo_get_preferred_domain(struct amdgpu_device *adev,
1527 if ((domain == (AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT)) &&
1528 ((adev->asic_type == CHIP_CARRIZO) || (adev->asic_type == CHIP_STONEY))) {
1529 domain = AMDGPU_GEM_DOMAIN_VRAM;
1530 if (adev->gmc.real_vram_size <= AMDGPU_SG_THRESHOLD)
1531 domain = AMDGPU_GEM_DOMAIN_GTT;
1536 #if defined(CONFIG_DEBUG_FS)
1537 #define amdgpu_bo_print_flag(m, bo, flag) \
1539 if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
1540 seq_printf((m), " " #flag); \
1545 * amdgpu_bo_print_info - print BO info in debugfs file
1547 * @id: Index or Id of the BO
1548 * @bo: Requested BO for printing info
1551 * Print BO information in debugfs file
1554 * Size of the BO in bytes.
1556 u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m)
1558 struct dma_buf_attachment *attachment;
1559 struct dma_buf *dma_buf;
1560 unsigned int domain;
1561 const char *placement;
1562 unsigned int pin_count;
1565 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
1567 case AMDGPU_GEM_DOMAIN_VRAM:
1570 case AMDGPU_GEM_DOMAIN_GTT:
1573 case AMDGPU_GEM_DOMAIN_CPU:
1579 size = amdgpu_bo_size(bo);
1580 seq_printf(m, "\t\t0x%08x: %12lld byte %s",
1581 id, size, placement);
1583 pin_count = READ_ONCE(bo->tbo.pin_count);
1585 seq_printf(m, " pin count %d", pin_count);
1587 dma_buf = READ_ONCE(bo->tbo.base.dma_buf);
1588 attachment = READ_ONCE(bo->tbo.base.import_attach);
1591 seq_printf(m, " imported from ino:%lu", file_inode(dma_buf->file)->i_ino);
1593 seq_printf(m, " exported as ino:%lu", file_inode(dma_buf->file)->i_ino);
1595 amdgpu_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
1596 amdgpu_bo_print_flag(m, bo, NO_CPU_ACCESS);
1597 amdgpu_bo_print_flag(m, bo, CPU_GTT_USWC);
1598 amdgpu_bo_print_flag(m, bo, VRAM_CLEARED);
1599 amdgpu_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
1600 amdgpu_bo_print_flag(m, bo, VM_ALWAYS_VALID);
1601 amdgpu_bo_print_flag(m, bo, EXPLICIT_SYNC);