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 int visible_pfn = adev->gmc.visible_vram_size >> PAGE_SHIFT;
135 if (adev->gmc.mem_partitions && abo->mem_id >= 0) {
136 places[c].fpfn = adev->gmc.mem_partitions[abo->mem_id].range.fpfn;
138 * memory partition range lpfn is inclusive start + size - 1
139 * TTM place lpfn is exclusive start + size
141 places[c].lpfn = adev->gmc.mem_partitions[abo->mem_id].range.lpfn + 1;
146 places[c].mem_type = TTM_PL_VRAM;
149 if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
150 places[c].lpfn = min_not_zero(places[c].lpfn, visible_pfn);
151 else if (adev->gmc.real_vram_size != adev->gmc.visible_vram_size)
152 places[c].flags |= TTM_PL_FLAG_TOPDOWN;
154 if (flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)
155 places[c].flags |= TTM_PL_FLAG_CONTIGUOUS;
159 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
163 abo->flags & AMDGPU_GEM_CREATE_PREEMPTIBLE ?
164 AMDGPU_PL_PREEMPT : TTM_PL_TT;
169 if (domain & AMDGPU_GEM_DOMAIN_CPU) {
172 places[c].mem_type = TTM_PL_SYSTEM;
177 if (domain & AMDGPU_GEM_DOMAIN_GDS) {
180 places[c].mem_type = AMDGPU_PL_GDS;
185 if (domain & AMDGPU_GEM_DOMAIN_GWS) {
188 places[c].mem_type = AMDGPU_PL_GWS;
193 if (domain & AMDGPU_GEM_DOMAIN_OA) {
196 places[c].mem_type = AMDGPU_PL_OA;
204 places[c].mem_type = TTM_PL_SYSTEM;
209 BUG_ON(c > AMDGPU_BO_MAX_PLACEMENTS);
211 placement->num_placement = c;
212 placement->placement = places;
214 placement->num_busy_placement = c;
215 placement->busy_placement = places;
219 * amdgpu_bo_create_reserved - create reserved BO for kernel use
221 * @adev: amdgpu device object
222 * @size: size for the new BO
223 * @align: alignment for the new BO
224 * @domain: where to place it
225 * @bo_ptr: used to initialize BOs in structures
226 * @gpu_addr: GPU addr of the pinned BO
227 * @cpu_addr: optional CPU address mapping
229 * Allocates and pins a BO for kernel internal use, and returns it still
232 * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
235 * 0 on success, negative error code otherwise.
237 int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
238 unsigned long size, int align,
239 u32 domain, struct amdgpu_bo **bo_ptr,
240 u64 *gpu_addr, void **cpu_addr)
242 struct amdgpu_bo_param bp;
247 amdgpu_bo_unref(bo_ptr);
251 memset(&bp, 0, sizeof(bp));
253 bp.byte_align = align;
255 bp.flags = cpu_addr ? AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED
256 : AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
257 bp.flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
258 bp.type = ttm_bo_type_kernel;
260 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
263 r = amdgpu_bo_create(adev, &bp, bo_ptr);
265 dev_err(adev->dev, "(%d) failed to allocate kernel bo\n",
272 r = amdgpu_bo_reserve(*bo_ptr, false);
274 dev_err(adev->dev, "(%d) failed to reserve kernel bo\n", r);
278 r = amdgpu_bo_pin(*bo_ptr, domain);
280 dev_err(adev->dev, "(%d) kernel bo pin failed\n", r);
281 goto error_unreserve;
284 r = amdgpu_ttm_alloc_gart(&(*bo_ptr)->tbo);
286 dev_err(adev->dev, "%p bind failed\n", *bo_ptr);
291 *gpu_addr = amdgpu_bo_gpu_offset(*bo_ptr);
294 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
296 dev_err(adev->dev, "(%d) kernel bo map failed\n", r);
304 amdgpu_bo_unpin(*bo_ptr);
306 amdgpu_bo_unreserve(*bo_ptr);
310 amdgpu_bo_unref(bo_ptr);
316 * amdgpu_bo_create_kernel - create BO for kernel use
318 * @adev: amdgpu device object
319 * @size: size for the new BO
320 * @align: alignment for the new BO
321 * @domain: where to place it
322 * @bo_ptr: used to initialize BOs in structures
323 * @gpu_addr: GPU addr of the pinned BO
324 * @cpu_addr: optional CPU address mapping
326 * Allocates and pins a BO for kernel internal use.
328 * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
331 * 0 on success, negative error code otherwise.
333 int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
334 unsigned long size, int align,
335 u32 domain, struct amdgpu_bo **bo_ptr,
336 u64 *gpu_addr, void **cpu_addr)
340 r = amdgpu_bo_create_reserved(adev, size, align, domain, bo_ptr,
347 amdgpu_bo_unreserve(*bo_ptr);
353 * amdgpu_bo_create_kernel_at - create BO for kernel use at specific location
355 * @adev: amdgpu device object
356 * @offset: offset of the BO
357 * @size: size of the BO
358 * @bo_ptr: used to initialize BOs in structures
359 * @cpu_addr: optional CPU address mapping
361 * Creates a kernel BO at a specific offset in VRAM.
364 * 0 on success, negative error code otherwise.
366 int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,
367 uint64_t offset, uint64_t size,
368 struct amdgpu_bo **bo_ptr, void **cpu_addr)
370 struct ttm_operation_ctx ctx = { false, false };
375 size = ALIGN(size, PAGE_SIZE);
377 r = amdgpu_bo_create_reserved(adev, size, PAGE_SIZE,
378 AMDGPU_GEM_DOMAIN_VRAM, bo_ptr, NULL,
383 if ((*bo_ptr) == NULL)
387 * Remove the original mem node and create a new one at the request
391 amdgpu_bo_kunmap(*bo_ptr);
393 ttm_resource_free(&(*bo_ptr)->tbo, &(*bo_ptr)->tbo.resource);
395 for (i = 0; i < (*bo_ptr)->placement.num_placement; ++i) {
396 (*bo_ptr)->placements[i].fpfn = offset >> PAGE_SHIFT;
397 (*bo_ptr)->placements[i].lpfn = (offset + size) >> PAGE_SHIFT;
399 r = ttm_bo_mem_space(&(*bo_ptr)->tbo, &(*bo_ptr)->placement,
400 &(*bo_ptr)->tbo.resource, &ctx);
405 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
410 amdgpu_bo_unreserve(*bo_ptr);
414 amdgpu_bo_unreserve(*bo_ptr);
415 amdgpu_bo_unref(bo_ptr);
420 * amdgpu_bo_free_kernel - free BO for kernel use
422 * @bo: amdgpu BO to free
423 * @gpu_addr: pointer to where the BO's GPU memory space address was stored
424 * @cpu_addr: pointer to where the BO's CPU memory space address was stored
426 * unmaps and unpin a BO for kernel internal use.
428 void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
434 WARN_ON(amdgpu_ttm_adev((*bo)->tbo.bdev)->in_suspend);
436 if (likely(amdgpu_bo_reserve(*bo, true) == 0)) {
438 amdgpu_bo_kunmap(*bo);
440 amdgpu_bo_unpin(*bo);
441 amdgpu_bo_unreserve(*bo);
452 /* Validate bo size is bit bigger then the request domain */
453 static bool amdgpu_bo_validate_size(struct amdgpu_device *adev,
454 unsigned long size, u32 domain)
456 struct ttm_resource_manager *man = NULL;
459 * If GTT is part of requested domains the check must succeed to
460 * allow fall back to GTT.
462 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
463 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT);
465 if (man && size < man->size)
468 WARN_ON_ONCE("GTT domain requested but GTT mem manager uninitialized");
470 } else if (domain & AMDGPU_GEM_DOMAIN_VRAM) {
471 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
473 if (man && size < man->size)
478 /* TODO add more domains checks, such as AMDGPU_GEM_DOMAIN_CPU */
483 DRM_DEBUG("BO size %lu > total memory in domain: %llu\n", size,
488 bool amdgpu_bo_support_uswc(u64 bo_flags)
492 /* XXX: Write-combined CPU mappings of GTT seem broken on 32-bit
493 * See https://bugs.freedesktop.org/show_bug.cgi?id=84627
496 #elif defined(CONFIG_X86) && !defined(CONFIG_X86_PAT)
497 /* Don't try to enable write-combining when it can't work, or things
499 * See https://bugs.freedesktop.org/show_bug.cgi?id=88758
502 #ifndef CONFIG_COMPILE_TEST
503 #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \
504 thanks to write-combining
507 if (bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)
508 DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for "
509 "better performance thanks to write-combining\n");
512 /* For architectures that don't support WC memory,
513 * mask out the WC flag from the BO
515 if (!drm_arch_can_wc_memory())
523 * amdgpu_bo_create - create an &amdgpu_bo buffer object
524 * @adev: amdgpu device object
525 * @bp: parameters to be used for the buffer object
526 * @bo_ptr: pointer to the buffer object pointer
528 * Creates an &amdgpu_bo buffer object.
531 * 0 for success or a negative error code on failure.
533 int amdgpu_bo_create(struct amdgpu_device *adev,
534 struct amdgpu_bo_param *bp,
535 struct amdgpu_bo **bo_ptr)
537 struct ttm_operation_ctx ctx = {
538 .interruptible = (bp->type != ttm_bo_type_kernel),
539 .no_wait_gpu = bp->no_wait_gpu,
540 /* We opt to avoid OOM on system pages allocations */
541 .gfp_retry_mayfail = true,
542 .allow_res_evict = bp->type != ttm_bo_type_kernel,
545 struct amdgpu_bo *bo;
546 unsigned long page_align, size = bp->size;
549 /* Note that GDS/GWS/OA allocates 1 page per byte/resource. */
550 if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
551 /* GWS and OA don't need any alignment. */
552 page_align = bp->byte_align;
555 } else if (bp->domain & AMDGPU_GEM_DOMAIN_GDS) {
556 /* Both size and alignment must be a multiple of 4. */
557 page_align = ALIGN(bp->byte_align, 4);
558 size = ALIGN(size, 4) << PAGE_SHIFT;
560 /* Memory should be aligned at least to a page size. */
561 page_align = ALIGN(bp->byte_align, PAGE_SIZE) >> PAGE_SHIFT;
562 size = ALIGN(size, PAGE_SIZE);
565 if (!amdgpu_bo_validate_size(adev, size, bp->domain))
568 BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo));
571 bo = kvzalloc(bp->bo_ptr_size, GFP_KERNEL);
574 drm_gem_private_object_init(adev_to_drm(adev), &bo->tbo.base, size);
576 bo->preferred_domains = bp->preferred_domain ? bp->preferred_domain :
578 bo->allowed_domains = bo->preferred_domains;
579 if (bp->type != ttm_bo_type_kernel &&
580 !(bp->flags & AMDGPU_GEM_CREATE_DISCARDABLE) &&
581 bo->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
582 bo->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
584 bo->flags = bp->flags;
586 /* bo->mem_id -1 means any partition */
587 bo->mem_id = bp->mem_id_plus1 - 1;
589 if (!amdgpu_bo_support_uswc(bo->flags))
590 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
592 if (adev->ras_enabled)
593 bo->flags |= AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE;
595 bo->tbo.bdev = &adev->mman.bdev;
596 if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA |
597 AMDGPU_GEM_DOMAIN_GDS))
598 amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_CPU);
600 amdgpu_bo_placement_from_domain(bo, bp->domain);
601 if (bp->type == ttm_bo_type_kernel)
602 bo->tbo.priority = 1;
605 bp->destroy = &amdgpu_bo_destroy;
607 r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, bp->type,
608 &bo->placement, page_align, &ctx, NULL,
609 bp->resv, bp->destroy);
610 if (unlikely(r != 0))
613 if (!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
614 bo->tbo.resource->mem_type == TTM_PL_VRAM &&
615 amdgpu_bo_in_cpu_visible_vram(bo))
616 amdgpu_cs_report_moved_bytes(adev, ctx.bytes_moved,
619 amdgpu_cs_report_moved_bytes(adev, ctx.bytes_moved, 0);
621 if (bp->flags & AMDGPU_GEM_CREATE_VRAM_CLEARED &&
622 bo->tbo.resource->mem_type == TTM_PL_VRAM) {
623 struct dma_fence *fence;
625 r = amdgpu_fill_buffer(bo, 0, bo->tbo.base.resv, &fence);
629 dma_resv_add_fence(bo->tbo.base.resv, fence,
630 DMA_RESV_USAGE_KERNEL);
631 dma_fence_put(fence);
634 amdgpu_bo_unreserve(bo);
637 trace_amdgpu_bo_create(bo);
639 /* Treat CPU_ACCESS_REQUIRED only as a hint if given by UMD */
640 if (bp->type == ttm_bo_type_device)
641 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
647 dma_resv_unlock(bo->tbo.base.resv);
648 amdgpu_bo_unref(&bo);
653 * amdgpu_bo_create_user - create an &amdgpu_bo_user buffer object
654 * @adev: amdgpu device object
655 * @bp: parameters to be used for the buffer object
656 * @ubo_ptr: pointer to the buffer object pointer
658 * Create a BO to be used by user application;
661 * 0 for success or a negative error code on failure.
664 int amdgpu_bo_create_user(struct amdgpu_device *adev,
665 struct amdgpu_bo_param *bp,
666 struct amdgpu_bo_user **ubo_ptr)
668 struct amdgpu_bo *bo_ptr;
671 bp->bo_ptr_size = sizeof(struct amdgpu_bo_user);
672 bp->destroy = &amdgpu_bo_user_destroy;
673 r = amdgpu_bo_create(adev, bp, &bo_ptr);
677 *ubo_ptr = to_amdgpu_bo_user(bo_ptr);
682 * amdgpu_bo_create_vm - create an &amdgpu_bo_vm buffer object
683 * @adev: amdgpu device object
684 * @bp: parameters to be used for the buffer object
685 * @vmbo_ptr: pointer to the buffer object pointer
687 * Create a BO to be for GPUVM.
690 * 0 for success or a negative error code on failure.
693 int amdgpu_bo_create_vm(struct amdgpu_device *adev,
694 struct amdgpu_bo_param *bp,
695 struct amdgpu_bo_vm **vmbo_ptr)
697 struct amdgpu_bo *bo_ptr;
700 /* bo_ptr_size will be determined by the caller and it depends on
701 * num of amdgpu_vm_pt entries.
703 BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo_vm));
704 r = amdgpu_bo_create(adev, bp, &bo_ptr);
708 *vmbo_ptr = to_amdgpu_bo_vm(bo_ptr);
709 INIT_LIST_HEAD(&(*vmbo_ptr)->shadow_list);
710 /* Set destroy callback to amdgpu_bo_vm_destroy after vmbo->shadow_list
713 bo_ptr->tbo.destroy = &amdgpu_bo_vm_destroy;
718 * amdgpu_bo_add_to_shadow_list - add a BO to the shadow list
720 * @vmbo: BO that will be inserted into the shadow list
722 * Insert a BO to the shadow list.
724 void amdgpu_bo_add_to_shadow_list(struct amdgpu_bo_vm *vmbo)
726 struct amdgpu_device *adev = amdgpu_ttm_adev(vmbo->bo.tbo.bdev);
728 mutex_lock(&adev->shadow_list_lock);
729 list_add_tail(&vmbo->shadow_list, &adev->shadow_list);
730 mutex_unlock(&adev->shadow_list_lock);
734 * amdgpu_bo_restore_shadow - restore an &amdgpu_bo shadow
736 * @shadow: &amdgpu_bo shadow to be restored
737 * @fence: dma_fence associated with the operation
739 * Copies a buffer object's shadow content back to the object.
740 * This is used for recovering a buffer from its shadow in case of a gpu
741 * reset where vram context may be lost.
744 * 0 for success or a negative error code on failure.
746 int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow, struct dma_fence **fence)
749 struct amdgpu_device *adev = amdgpu_ttm_adev(shadow->tbo.bdev);
750 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
751 uint64_t shadow_addr, parent_addr;
753 shadow_addr = amdgpu_bo_gpu_offset(shadow);
754 parent_addr = amdgpu_bo_gpu_offset(shadow->parent);
756 return amdgpu_copy_buffer(ring, shadow_addr, parent_addr,
757 amdgpu_bo_size(shadow), NULL, fence,
762 * amdgpu_bo_kmap - map an &amdgpu_bo buffer object
763 * @bo: &amdgpu_bo buffer object to be mapped
764 * @ptr: kernel virtual address to be returned
766 * Calls ttm_bo_kmap() to set up the kernel virtual mapping; calls
767 * amdgpu_bo_kptr() to get the kernel virtual address.
770 * 0 for success or a negative error code on failure.
772 int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr)
777 if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
780 r = dma_resv_wait_timeout(bo->tbo.base.resv, DMA_RESV_USAGE_KERNEL,
781 false, MAX_SCHEDULE_TIMEOUT);
785 kptr = amdgpu_bo_kptr(bo);
792 r = ttm_bo_kmap(&bo->tbo, 0, PFN_UP(bo->tbo.base.size), &bo->kmap);
797 *ptr = amdgpu_bo_kptr(bo);
803 * amdgpu_bo_kptr - returns a kernel virtual address of the buffer object
804 * @bo: &amdgpu_bo buffer object
806 * Calls ttm_kmap_obj_virtual() to get the kernel virtual address
809 * the virtual address of a buffer object area.
811 void *amdgpu_bo_kptr(struct amdgpu_bo *bo)
815 return ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
819 * amdgpu_bo_kunmap - unmap an &amdgpu_bo buffer object
820 * @bo: &amdgpu_bo buffer object to be unmapped
822 * Unmaps a kernel map set up by amdgpu_bo_kmap().
824 void amdgpu_bo_kunmap(struct amdgpu_bo *bo)
827 ttm_bo_kunmap(&bo->kmap);
831 * amdgpu_bo_ref - reference an &amdgpu_bo buffer object
832 * @bo: &amdgpu_bo buffer object
834 * References the contained &ttm_buffer_object.
837 * a refcounted pointer to the &amdgpu_bo buffer object.
839 struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo)
844 ttm_bo_get(&bo->tbo);
849 * amdgpu_bo_unref - unreference an &amdgpu_bo buffer object
850 * @bo: &amdgpu_bo buffer object
852 * Unreferences the contained &ttm_buffer_object and clear the pointer
854 void amdgpu_bo_unref(struct amdgpu_bo **bo)
856 struct ttm_buffer_object *tbo;
867 * amdgpu_bo_pin_restricted - pin an &amdgpu_bo buffer object
868 * @bo: &amdgpu_bo buffer object to be pinned
869 * @domain: domain to be pinned to
870 * @min_offset: the start of requested address range
871 * @max_offset: the end of requested address range
873 * Pins the buffer object according to requested domain and address range. If
874 * the memory is unbound gart memory, binds the pages into gart table. Adjusts
875 * pin_count and pin_size accordingly.
877 * Pinning means to lock pages in memory along with keeping them at a fixed
878 * offset. It is required when a buffer can not be moved, for example, when
879 * a display buffer is being scanned out.
881 * Compared with amdgpu_bo_pin(), this function gives more flexibility on
882 * where to pin a buffer if there are specific restrictions on where a buffer
886 * 0 for success or a negative error code on failure.
888 int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
889 u64 min_offset, u64 max_offset)
891 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
892 struct ttm_operation_ctx ctx = { false, false };
895 if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm))
898 if (WARN_ON_ONCE(min_offset > max_offset))
901 /* Check domain to be pinned to against preferred domains */
902 if (bo->preferred_domains & domain)
903 domain = bo->preferred_domains & domain;
905 /* A shared bo cannot be migrated to VRAM */
906 if (bo->tbo.base.import_attach) {
907 if (domain & AMDGPU_GEM_DOMAIN_GTT)
908 domain = AMDGPU_GEM_DOMAIN_GTT;
913 if (bo->tbo.pin_count) {
914 uint32_t mem_type = bo->tbo.resource->mem_type;
915 uint32_t mem_flags = bo->tbo.resource->placement;
917 if (!(domain & amdgpu_mem_type_to_domain(mem_type)))
920 if ((mem_type == TTM_PL_VRAM) &&
921 (bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) &&
922 !(mem_flags & TTM_PL_FLAG_CONTIGUOUS))
925 ttm_bo_pin(&bo->tbo);
927 if (max_offset != 0) {
928 u64 domain_start = amdgpu_ttm_domain_start(adev,
930 WARN_ON_ONCE(max_offset <
931 (amdgpu_bo_gpu_offset(bo) - domain_start));
937 /* This assumes only APU display buffers are pinned with (VRAM|GTT).
938 * See function amdgpu_display_supported_domains()
940 domain = amdgpu_bo_get_preferred_domain(adev, domain);
942 if (bo->tbo.base.import_attach)
943 dma_buf_pin(bo->tbo.base.import_attach);
945 /* force to pin into visible video ram */
946 if (!(bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS))
947 bo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
948 amdgpu_bo_placement_from_domain(bo, domain);
949 for (i = 0; i < bo->placement.num_placement; i++) {
950 unsigned int fpfn, lpfn;
952 fpfn = min_offset >> PAGE_SHIFT;
953 lpfn = max_offset >> PAGE_SHIFT;
955 if (fpfn > bo->placements[i].fpfn)
956 bo->placements[i].fpfn = fpfn;
957 if (!bo->placements[i].lpfn ||
958 (lpfn && lpfn < bo->placements[i].lpfn))
959 bo->placements[i].lpfn = lpfn;
962 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
964 dev_err(adev->dev, "%p pin failed\n", bo);
968 ttm_bo_pin(&bo->tbo);
970 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
971 if (domain == AMDGPU_GEM_DOMAIN_VRAM) {
972 atomic64_add(amdgpu_bo_size(bo), &adev->vram_pin_size);
973 atomic64_add(amdgpu_vram_mgr_bo_visible_size(bo),
974 &adev->visible_pin_size);
975 } else if (domain == AMDGPU_GEM_DOMAIN_GTT) {
976 atomic64_add(amdgpu_bo_size(bo), &adev->gart_pin_size);
984 * amdgpu_bo_pin - pin an &amdgpu_bo buffer object
985 * @bo: &amdgpu_bo buffer object to be pinned
986 * @domain: domain to be pinned to
988 * A simple wrapper to amdgpu_bo_pin_restricted().
989 * Provides a simpler API for buffers that do not have any strict restrictions
990 * on where a buffer must be located.
993 * 0 for success or a negative error code on failure.
995 int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain)
997 bo->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
998 return amdgpu_bo_pin_restricted(bo, domain, 0, 0);
1002 * amdgpu_bo_unpin - unpin an &amdgpu_bo buffer object
1003 * @bo: &amdgpu_bo buffer object to be unpinned
1005 * Decreases the pin_count, and clears the flags if pin_count reaches 0.
1006 * Changes placement and pin size accordingly.
1009 * 0 for success or a negative error code on failure.
1011 void amdgpu_bo_unpin(struct amdgpu_bo *bo)
1013 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1015 ttm_bo_unpin(&bo->tbo);
1016 if (bo->tbo.pin_count)
1019 if (bo->tbo.base.import_attach)
1020 dma_buf_unpin(bo->tbo.base.import_attach);
1022 if (bo->tbo.resource->mem_type == TTM_PL_VRAM) {
1023 atomic64_sub(amdgpu_bo_size(bo), &adev->vram_pin_size);
1024 atomic64_sub(amdgpu_vram_mgr_bo_visible_size(bo),
1025 &adev->visible_pin_size);
1026 } else if (bo->tbo.resource->mem_type == TTM_PL_TT) {
1027 atomic64_sub(amdgpu_bo_size(bo), &adev->gart_pin_size);
1031 static const char * const amdgpu_vram_names[] = {
1048 * amdgpu_bo_init - initialize memory manager
1049 * @adev: amdgpu device object
1051 * Calls amdgpu_ttm_init() to initialize amdgpu memory manager.
1054 * 0 for success or a negative error code on failure.
1056 int amdgpu_bo_init(struct amdgpu_device *adev)
1058 /* On A+A platform, VRAM can be mapped as WB */
1059 if (!adev->gmc.xgmi.connected_to_cpu && !adev->gmc.is_app_apu) {
1060 /* reserve PAT memory space to WC for VRAM */
1061 int r = arch_io_reserve_memtype_wc(adev->gmc.aper_base,
1062 adev->gmc.aper_size);
1065 DRM_ERROR("Unable to set WC memtype for the aperture base\n");
1069 /* Add an MTRR for the VRAM */
1070 adev->gmc.vram_mtrr = arch_phys_wc_add(adev->gmc.aper_base,
1071 adev->gmc.aper_size);
1074 DRM_INFO("Detected VRAM RAM=%lluM, BAR=%lluM\n",
1075 adev->gmc.mc_vram_size >> 20,
1076 (unsigned long long)adev->gmc.aper_size >> 20);
1077 DRM_INFO("RAM width %dbits %s\n",
1078 adev->gmc.vram_width, amdgpu_vram_names[adev->gmc.vram_type]);
1079 return amdgpu_ttm_init(adev);
1083 * amdgpu_bo_fini - tear down memory manager
1084 * @adev: amdgpu device object
1086 * Reverses amdgpu_bo_init() to tear down memory manager.
1088 void amdgpu_bo_fini(struct amdgpu_device *adev)
1092 amdgpu_ttm_fini(adev);
1094 if (drm_dev_enter(adev_to_drm(adev), &idx)) {
1095 if (!adev->gmc.xgmi.connected_to_cpu && !adev->gmc.is_app_apu) {
1096 arch_phys_wc_del(adev->gmc.vram_mtrr);
1097 arch_io_free_memtype_wc(adev->gmc.aper_base, adev->gmc.aper_size);
1104 * amdgpu_bo_set_tiling_flags - set tiling flags
1105 * @bo: &amdgpu_bo buffer object
1106 * @tiling_flags: new flags
1108 * Sets buffer object's tiling flags with the new one. Used by GEM ioctl or
1109 * kernel driver to set the tiling flags on a buffer.
1112 * 0 for success or a negative error code on failure.
1114 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags)
1116 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1117 struct amdgpu_bo_user *ubo;
1119 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1120 if (adev->family <= AMDGPU_FAMILY_CZ &&
1121 AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT) > 6)
1124 ubo = to_amdgpu_bo_user(bo);
1125 ubo->tiling_flags = tiling_flags;
1130 * amdgpu_bo_get_tiling_flags - get tiling flags
1131 * @bo: &amdgpu_bo buffer object
1132 * @tiling_flags: returned flags
1134 * Gets buffer object's tiling flags. Used by GEM ioctl or kernel driver to
1135 * set the tiling flags on a buffer.
1137 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags)
1139 struct amdgpu_bo_user *ubo;
1141 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1142 dma_resv_assert_held(bo->tbo.base.resv);
1143 ubo = to_amdgpu_bo_user(bo);
1146 *tiling_flags = ubo->tiling_flags;
1150 * amdgpu_bo_set_metadata - set metadata
1151 * @bo: &amdgpu_bo buffer object
1152 * @metadata: new metadata
1153 * @metadata_size: size of the new metadata
1154 * @flags: flags of the new metadata
1156 * Sets buffer object's metadata, its size and flags.
1157 * Used via GEM ioctl.
1160 * 0 for success or a negative error code on failure.
1162 int amdgpu_bo_set_metadata(struct amdgpu_bo *bo, void *metadata,
1163 u32 metadata_size, uint64_t flags)
1165 struct amdgpu_bo_user *ubo;
1168 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1169 ubo = to_amdgpu_bo_user(bo);
1170 if (!metadata_size) {
1171 if (ubo->metadata_size) {
1172 kfree(ubo->metadata);
1173 ubo->metadata = NULL;
1174 ubo->metadata_size = 0;
1179 if (metadata == NULL)
1182 buffer = kmemdup(metadata, metadata_size, GFP_KERNEL);
1186 kfree(ubo->metadata);
1187 ubo->metadata_flags = flags;
1188 ubo->metadata = buffer;
1189 ubo->metadata_size = metadata_size;
1195 * amdgpu_bo_get_metadata - get metadata
1196 * @bo: &amdgpu_bo buffer object
1197 * @buffer: returned metadata
1198 * @buffer_size: size of the buffer
1199 * @metadata_size: size of the returned metadata
1200 * @flags: flags of the returned metadata
1202 * Gets buffer object's metadata, its size and flags. buffer_size shall not be
1203 * less than metadata_size.
1204 * Used via GEM ioctl.
1207 * 0 for success or a negative error code on failure.
1209 int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer,
1210 size_t buffer_size, uint32_t *metadata_size,
1213 struct amdgpu_bo_user *ubo;
1215 if (!buffer && !metadata_size)
1218 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1219 ubo = to_amdgpu_bo_user(bo);
1221 *metadata_size = ubo->metadata_size;
1224 if (buffer_size < ubo->metadata_size)
1227 if (ubo->metadata_size)
1228 memcpy(buffer, ubo->metadata, ubo->metadata_size);
1232 *flags = ubo->metadata_flags;
1238 * amdgpu_bo_move_notify - notification about a memory move
1239 * @bo: pointer to a buffer object
1240 * @evict: if this move is evicting the buffer from the graphics address space
1241 * @new_mem: new information of the bufer object
1243 * Marks the corresponding &amdgpu_bo buffer object as invalid, also performs
1245 * TTM driver callback which is called when ttm moves a buffer.
1247 void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
1249 struct ttm_resource *new_mem)
1251 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1252 struct amdgpu_bo *abo;
1253 struct ttm_resource *old_mem = bo->resource;
1255 if (!amdgpu_bo_is_amdgpu_bo(bo))
1258 abo = ttm_to_amdgpu_bo(bo);
1259 amdgpu_vm_bo_invalidate(adev, abo, evict);
1261 amdgpu_bo_kunmap(abo);
1263 if (abo->tbo.base.dma_buf && !abo->tbo.base.import_attach &&
1264 bo->resource->mem_type != TTM_PL_SYSTEM)
1265 dma_buf_move_notify(abo->tbo.base.dma_buf);
1267 /* remember the eviction */
1269 atomic64_inc(&adev->num_evictions);
1271 /* update statistics */
1275 /* move_notify is called before move happens */
1276 trace_amdgpu_bo_move(abo, new_mem->mem_type, old_mem->mem_type);
1279 void amdgpu_bo_get_memory(struct amdgpu_bo *bo,
1280 struct amdgpu_mem_stats *stats)
1282 unsigned int domain;
1283 uint64_t size = amdgpu_bo_size(bo);
1285 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
1287 case AMDGPU_GEM_DOMAIN_VRAM:
1288 stats->vram += size;
1289 if (amdgpu_bo_in_cpu_visible_vram(bo))
1290 stats->visible_vram += size;
1292 case AMDGPU_GEM_DOMAIN_GTT:
1295 case AMDGPU_GEM_DOMAIN_CPU:
1301 if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) {
1302 stats->requested_vram += size;
1303 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
1304 stats->requested_visible_vram += size;
1306 if (domain != AMDGPU_GEM_DOMAIN_VRAM) {
1307 stats->evicted_vram += size;
1308 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
1309 stats->evicted_visible_vram += size;
1311 } else if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_GTT) {
1312 stats->requested_gtt += size;
1317 * amdgpu_bo_release_notify - notification about a BO being released
1318 * @bo: pointer to a buffer object
1320 * Wipes VRAM buffers whose contents should not be leaked before the
1321 * memory is released.
1323 void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
1325 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1326 struct dma_fence *fence = NULL;
1327 struct amdgpu_bo *abo;
1330 if (!amdgpu_bo_is_amdgpu_bo(bo))
1333 abo = ttm_to_amdgpu_bo(bo);
1336 amdgpu_amdkfd_release_notify(abo);
1338 /* We only remove the fence if the resv has individualized. */
1339 WARN_ON_ONCE(bo->type == ttm_bo_type_kernel
1340 && bo->base.resv != &bo->base._resv);
1341 if (bo->base.resv == &bo->base._resv)
1342 amdgpu_amdkfd_remove_fence_on_pt_pd_bos(abo);
1344 if (!bo->resource || bo->resource->mem_type != TTM_PL_VRAM ||
1345 !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE) ||
1346 adev->in_suspend || drm_dev_is_unplugged(adev_to_drm(adev)))
1349 if (WARN_ON_ONCE(!dma_resv_trylock(bo->base.resv)))
1352 r = amdgpu_fill_buffer(abo, AMDGPU_POISON, bo->base.resv, &fence);
1354 amdgpu_bo_fence(abo, fence, false);
1355 dma_fence_put(fence);
1358 dma_resv_unlock(bo->base.resv);
1362 * amdgpu_bo_fault_reserve_notify - notification about a memory fault
1363 * @bo: pointer to a buffer object
1365 * Notifies the driver we are taking a fault on this BO and have reserved it,
1366 * also performs bookkeeping.
1367 * TTM driver callback for dealing with vm faults.
1370 * 0 for success or a negative error code on failure.
1372 vm_fault_t amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
1374 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1375 struct ttm_operation_ctx ctx = { false, false };
1376 struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo);
1379 /* Remember that this BO was accessed by the CPU */
1380 abo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
1382 if (bo->resource->mem_type != TTM_PL_VRAM)
1385 if (amdgpu_bo_in_cpu_visible_vram(abo))
1388 /* Can't move a pinned BO to visible VRAM */
1389 if (abo->tbo.pin_count > 0)
1390 return VM_FAULT_SIGBUS;
1392 /* hurrah the memory is not visible ! */
1393 atomic64_inc(&adev->num_vram_cpu_page_faults);
1394 amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM |
1395 AMDGPU_GEM_DOMAIN_GTT);
1397 /* Avoid costly evictions; only set GTT as a busy placement */
1398 abo->placement.num_busy_placement = 1;
1399 abo->placement.busy_placement = &abo->placements[1];
1401 r = ttm_bo_validate(bo, &abo->placement, &ctx);
1402 if (unlikely(r == -EBUSY || r == -ERESTARTSYS))
1403 return VM_FAULT_NOPAGE;
1404 else if (unlikely(r))
1405 return VM_FAULT_SIGBUS;
1407 /* this should never happen */
1408 if (bo->resource->mem_type == TTM_PL_VRAM &&
1409 !amdgpu_bo_in_cpu_visible_vram(abo))
1410 return VM_FAULT_SIGBUS;
1412 ttm_bo_move_to_lru_tail_unlocked(bo);
1417 * amdgpu_bo_fence - add fence to buffer object
1419 * @bo: buffer object in question
1420 * @fence: fence to add
1421 * @shared: true if fence should be added shared
1424 void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence,
1427 struct dma_resv *resv = bo->tbo.base.resv;
1430 r = dma_resv_reserve_fences(resv, 1);
1432 /* As last resort on OOM we block for the fence */
1433 dma_fence_wait(fence, false);
1437 dma_resv_add_fence(resv, fence, shared ? DMA_RESV_USAGE_READ :
1438 DMA_RESV_USAGE_WRITE);
1442 * amdgpu_bo_sync_wait_resv - Wait for BO reservation fences
1444 * @adev: amdgpu device pointer
1445 * @resv: reservation object to sync to
1446 * @sync_mode: synchronization mode
1447 * @owner: fence owner
1448 * @intr: Whether the wait is interruptible
1450 * Extract the fences from the reservation object and waits for them to finish.
1453 * 0 on success, errno otherwise.
1455 int amdgpu_bo_sync_wait_resv(struct amdgpu_device *adev, struct dma_resv *resv,
1456 enum amdgpu_sync_mode sync_mode, void *owner,
1459 struct amdgpu_sync sync;
1462 amdgpu_sync_create(&sync);
1463 amdgpu_sync_resv(adev, &sync, resv, sync_mode, owner);
1464 r = amdgpu_sync_wait(&sync, intr);
1465 amdgpu_sync_free(&sync);
1470 * amdgpu_bo_sync_wait - Wrapper for amdgpu_bo_sync_wait_resv
1471 * @bo: buffer object to wait for
1472 * @owner: fence owner
1473 * @intr: Whether the wait is interruptible
1475 * Wrapper to wait for fences in a BO.
1477 * 0 on success, errno otherwise.
1479 int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr)
1481 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1483 return amdgpu_bo_sync_wait_resv(adev, bo->tbo.base.resv,
1484 AMDGPU_SYNC_NE_OWNER, owner, intr);
1488 * amdgpu_bo_gpu_offset - return GPU offset of bo
1489 * @bo: amdgpu object for which we query the offset
1491 * Note: object should either be pinned or reserved when calling this
1492 * function, it might be useful to add check for this for debugging.
1495 * current GPU offset of the object.
1497 u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
1499 WARN_ON_ONCE(bo->tbo.resource->mem_type == TTM_PL_SYSTEM);
1500 WARN_ON_ONCE(!dma_resv_is_locked(bo->tbo.base.resv) &&
1501 !bo->tbo.pin_count && bo->tbo.type != ttm_bo_type_kernel);
1502 WARN_ON_ONCE(bo->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET);
1503 WARN_ON_ONCE(bo->tbo.resource->mem_type == TTM_PL_VRAM &&
1504 !(bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS));
1506 return amdgpu_bo_gpu_offset_no_check(bo);
1510 * amdgpu_bo_gpu_offset_no_check - return GPU offset of bo
1511 * @bo: amdgpu object for which we query the offset
1514 * current GPU offset of the object without raising warnings.
1516 u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo)
1518 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1521 offset = (bo->tbo.resource->start << PAGE_SHIFT) +
1522 amdgpu_ttm_domain_start(adev, bo->tbo.resource->mem_type);
1524 return amdgpu_gmc_sign_extend(offset);
1528 * amdgpu_bo_get_preferred_domain - get preferred domain
1529 * @adev: amdgpu device object
1530 * @domain: allowed :ref:`memory domains <amdgpu_memory_domains>`
1533 * Which of the allowed domains is preferred for allocating the BO.
1535 uint32_t amdgpu_bo_get_preferred_domain(struct amdgpu_device *adev,
1538 if ((domain == (AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT)) &&
1539 ((adev->asic_type == CHIP_CARRIZO) || (adev->asic_type == CHIP_STONEY))) {
1540 domain = AMDGPU_GEM_DOMAIN_VRAM;
1541 if (adev->gmc.real_vram_size <= AMDGPU_SG_THRESHOLD)
1542 domain = AMDGPU_GEM_DOMAIN_GTT;
1547 #if defined(CONFIG_DEBUG_FS)
1548 #define amdgpu_bo_print_flag(m, bo, flag) \
1550 if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
1551 seq_printf((m), " " #flag); \
1556 * amdgpu_bo_print_info - print BO info in debugfs file
1558 * @id: Index or Id of the BO
1559 * @bo: Requested BO for printing info
1562 * Print BO information in debugfs file
1565 * Size of the BO in bytes.
1567 u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m)
1569 struct dma_buf_attachment *attachment;
1570 struct dma_buf *dma_buf;
1571 unsigned int domain;
1572 const char *placement;
1573 unsigned int pin_count;
1576 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
1578 case AMDGPU_GEM_DOMAIN_VRAM:
1581 case AMDGPU_GEM_DOMAIN_GTT:
1584 case AMDGPU_GEM_DOMAIN_CPU:
1590 size = amdgpu_bo_size(bo);
1591 seq_printf(m, "\t\t0x%08x: %12lld byte %s",
1592 id, size, placement);
1594 pin_count = READ_ONCE(bo->tbo.pin_count);
1596 seq_printf(m, " pin count %d", pin_count);
1598 dma_buf = READ_ONCE(bo->tbo.base.dma_buf);
1599 attachment = READ_ONCE(bo->tbo.base.import_attach);
1602 seq_printf(m, " imported from ino:%lu", file_inode(dma_buf->file)->i_ino);
1604 seq_printf(m, " exported as ino:%lu", file_inode(dma_buf->file)->i_ino);
1606 amdgpu_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
1607 amdgpu_bo_print_flag(m, bo, NO_CPU_ACCESS);
1608 amdgpu_bo_print_flag(m, bo, CPU_GTT_USWC);
1609 amdgpu_bo_print_flag(m, bo, VRAM_CLEARED);
1610 amdgpu_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
1611 amdgpu_bo_print_flag(m, bo, VM_ALWAYS_VALID);
1612 amdgpu_bo_print_flag(m, bo, EXPLICIT_SYNC);