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 *shadow_bo = ttm_to_amdgpu_bo(tbo), *bo;
83 struct amdgpu_bo_vm *vmbo;
85 bo = shadow_bo->parent;
86 vmbo = to_amdgpu_bo_vm(bo);
87 /* in case amdgpu_device_recover_vram got NULL of bo->parent */
88 if (!list_empty(&vmbo->shadow_list)) {
89 mutex_lock(&adev->shadow_list_lock);
90 list_del_init(&vmbo->shadow_list);
91 mutex_unlock(&adev->shadow_list_lock);
94 amdgpu_bo_destroy(tbo);
98 * amdgpu_bo_is_amdgpu_bo - check if the buffer object is an &amdgpu_bo
99 * @bo: buffer object to be checked
101 * Uses destroy function associated with the object to determine if this is
105 * true if the object belongs to &amdgpu_bo, false if not.
107 bool amdgpu_bo_is_amdgpu_bo(struct ttm_buffer_object *bo)
109 if (bo->destroy == &amdgpu_bo_destroy ||
110 bo->destroy == &amdgpu_bo_user_destroy ||
111 bo->destroy == &amdgpu_bo_vm_destroy)
118 * amdgpu_bo_placement_from_domain - set buffer's placement
119 * @abo: &amdgpu_bo buffer object whose placement is to be set
120 * @domain: requested domain
122 * Sets buffer's placement according to requested domain and the buffer's
125 void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain)
127 struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
128 struct ttm_placement *placement = &abo->placement;
129 struct ttm_place *places = abo->placements;
130 u64 flags = abo->flags;
133 if (domain & AMDGPU_GEM_DOMAIN_VRAM) {
134 unsigned visible_pfn = adev->gmc.visible_vram_size >> PAGE_SHIFT;
138 places[c].mem_type = TTM_PL_VRAM;
141 if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
142 places[c].lpfn = visible_pfn;
143 else if (adev->gmc.real_vram_size != adev->gmc.visible_vram_size)
144 places[c].flags |= TTM_PL_FLAG_TOPDOWN;
146 if (flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)
147 places[c].flags |= TTM_PL_FLAG_CONTIGUOUS;
151 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
155 abo->flags & AMDGPU_GEM_CREATE_PREEMPTIBLE ?
156 AMDGPU_PL_PREEMPT : TTM_PL_TT;
161 if (domain & AMDGPU_GEM_DOMAIN_CPU) {
164 places[c].mem_type = TTM_PL_SYSTEM;
169 if (domain & AMDGPU_GEM_DOMAIN_GDS) {
172 places[c].mem_type = AMDGPU_PL_GDS;
177 if (domain & AMDGPU_GEM_DOMAIN_GWS) {
180 places[c].mem_type = AMDGPU_PL_GWS;
185 if (domain & AMDGPU_GEM_DOMAIN_OA) {
188 places[c].mem_type = AMDGPU_PL_OA;
196 places[c].mem_type = TTM_PL_SYSTEM;
201 BUG_ON(c > AMDGPU_BO_MAX_PLACEMENTS);
203 placement->num_placement = c;
204 placement->placement = places;
206 placement->num_busy_placement = c;
207 placement->busy_placement = places;
211 * amdgpu_bo_create_reserved - create reserved BO for kernel use
213 * @adev: amdgpu device object
214 * @size: size for the new BO
215 * @align: alignment for the new BO
216 * @domain: where to place it
217 * @bo_ptr: used to initialize BOs in structures
218 * @gpu_addr: GPU addr of the pinned BO
219 * @cpu_addr: optional CPU address mapping
221 * Allocates and pins a BO for kernel internal use, and returns it still
224 * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
227 * 0 on success, negative error code otherwise.
229 int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
230 unsigned long size, int align,
231 u32 domain, struct amdgpu_bo **bo_ptr,
232 u64 *gpu_addr, void **cpu_addr)
234 struct amdgpu_bo_param bp;
239 amdgpu_bo_unref(bo_ptr);
243 memset(&bp, 0, sizeof(bp));
245 bp.byte_align = align;
247 bp.flags = cpu_addr ? AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED
248 : AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
249 bp.flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
250 bp.type = ttm_bo_type_kernel;
252 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
255 r = amdgpu_bo_create(adev, &bp, bo_ptr);
257 dev_err(adev->dev, "(%d) failed to allocate kernel bo\n",
264 r = amdgpu_bo_reserve(*bo_ptr, false);
266 dev_err(adev->dev, "(%d) failed to reserve kernel bo\n", r);
270 r = amdgpu_bo_pin(*bo_ptr, domain);
272 dev_err(adev->dev, "(%d) kernel bo pin failed\n", r);
273 goto error_unreserve;
276 r = amdgpu_ttm_alloc_gart(&(*bo_ptr)->tbo);
278 dev_err(adev->dev, "%p bind failed\n", *bo_ptr);
283 *gpu_addr = amdgpu_bo_gpu_offset(*bo_ptr);
286 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
288 dev_err(adev->dev, "(%d) kernel bo map failed\n", r);
296 amdgpu_bo_unpin(*bo_ptr);
298 amdgpu_bo_unreserve(*bo_ptr);
302 amdgpu_bo_unref(bo_ptr);
308 * amdgpu_bo_create_kernel - create BO for kernel use
310 * @adev: amdgpu device object
311 * @size: size for the new BO
312 * @align: alignment for the new BO
313 * @domain: where to place it
314 * @bo_ptr: used to initialize BOs in structures
315 * @gpu_addr: GPU addr of the pinned BO
316 * @cpu_addr: optional CPU address mapping
318 * Allocates and pins a BO for kernel internal use.
320 * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
323 * 0 on success, negative error code otherwise.
325 int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
326 unsigned long size, int align,
327 u32 domain, struct amdgpu_bo **bo_ptr,
328 u64 *gpu_addr, void **cpu_addr)
332 r = amdgpu_bo_create_reserved(adev, size, align, domain, bo_ptr,
339 amdgpu_bo_unreserve(*bo_ptr);
345 * amdgpu_bo_create_kernel_at - create BO for kernel use at specific location
347 * @adev: amdgpu device object
348 * @offset: offset of the BO
349 * @size: size of the BO
350 * @bo_ptr: used to initialize BOs in structures
351 * @cpu_addr: optional CPU address mapping
353 * Creates a kernel BO at a specific offset in VRAM.
356 * 0 on success, negative error code otherwise.
358 int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,
359 uint64_t offset, uint64_t size,
360 struct amdgpu_bo **bo_ptr, void **cpu_addr)
362 struct ttm_operation_ctx ctx = { false, false };
367 size = ALIGN(size, PAGE_SIZE);
369 r = amdgpu_bo_create_reserved(adev, size, PAGE_SIZE,
370 AMDGPU_GEM_DOMAIN_VRAM, bo_ptr, NULL,
375 if ((*bo_ptr) == NULL)
379 * Remove the original mem node and create a new one at the request
383 amdgpu_bo_kunmap(*bo_ptr);
385 ttm_resource_free(&(*bo_ptr)->tbo, &(*bo_ptr)->tbo.resource);
387 for (i = 0; i < (*bo_ptr)->placement.num_placement; ++i) {
388 (*bo_ptr)->placements[i].fpfn = offset >> PAGE_SHIFT;
389 (*bo_ptr)->placements[i].lpfn = (offset + size) >> PAGE_SHIFT;
391 r = ttm_bo_mem_space(&(*bo_ptr)->tbo, &(*bo_ptr)->placement,
392 &(*bo_ptr)->tbo.resource, &ctx);
397 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
402 amdgpu_bo_unreserve(*bo_ptr);
406 amdgpu_bo_unreserve(*bo_ptr);
407 amdgpu_bo_unref(bo_ptr);
412 * amdgpu_bo_free_kernel - free BO for kernel use
414 * @bo: amdgpu BO to free
415 * @gpu_addr: pointer to where the BO's GPU memory space address was stored
416 * @cpu_addr: pointer to where the BO's CPU memory space address was stored
418 * unmaps and unpin a BO for kernel internal use.
420 void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
426 WARN_ON(amdgpu_ttm_adev((*bo)->tbo.bdev)->in_suspend);
428 if (likely(amdgpu_bo_reserve(*bo, true) == 0)) {
430 amdgpu_bo_kunmap(*bo);
432 amdgpu_bo_unpin(*bo);
433 amdgpu_bo_unreserve(*bo);
444 /* Validate bo size is bit bigger then the request domain */
445 static bool amdgpu_bo_validate_size(struct amdgpu_device *adev,
446 unsigned long size, u32 domain)
448 struct ttm_resource_manager *man = NULL;
451 * If GTT is part of requested domains the check must succeed to
452 * allow fall back to GTT.
454 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
455 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT);
457 if (man && size < man->size)
460 WARN_ON_ONCE("GTT domain requested but GTT mem manager uninitialized");
462 } else if (domain & AMDGPU_GEM_DOMAIN_VRAM) {
463 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
465 if (man && size < man->size)
470 /* TODO add more domains checks, such as AMDGPU_GEM_DOMAIN_CPU */
475 DRM_DEBUG("BO size %lu > total memory in domain: %llu\n", size,
480 bool amdgpu_bo_support_uswc(u64 bo_flags)
484 /* XXX: Write-combined CPU mappings of GTT seem broken on 32-bit
485 * See https://bugs.freedesktop.org/show_bug.cgi?id=84627
488 #elif defined(CONFIG_X86) && !defined(CONFIG_X86_PAT)
489 /* Don't try to enable write-combining when it can't work, or things
491 * See https://bugs.freedesktop.org/show_bug.cgi?id=88758
494 #ifndef CONFIG_COMPILE_TEST
495 #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \
496 thanks to write-combining
499 if (bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)
500 DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for "
501 "better performance thanks to write-combining\n");
504 /* For architectures that don't support WC memory,
505 * mask out the WC flag from the BO
507 if (!drm_arch_can_wc_memory())
515 * amdgpu_bo_create - create an &amdgpu_bo buffer object
516 * @adev: amdgpu device object
517 * @bp: parameters to be used for the buffer object
518 * @bo_ptr: pointer to the buffer object pointer
520 * Creates an &amdgpu_bo buffer object.
523 * 0 for success or a negative error code on failure.
525 int amdgpu_bo_create(struct amdgpu_device *adev,
526 struct amdgpu_bo_param *bp,
527 struct amdgpu_bo **bo_ptr)
529 struct ttm_operation_ctx ctx = {
530 .interruptible = (bp->type != ttm_bo_type_kernel),
531 .no_wait_gpu = bp->no_wait_gpu,
532 /* We opt to avoid OOM on system pages allocations */
533 .gfp_retry_mayfail = true,
534 .allow_res_evict = bp->type != ttm_bo_type_kernel,
537 struct amdgpu_bo *bo;
538 unsigned long page_align, size = bp->size;
541 /* Note that GDS/GWS/OA allocates 1 page per byte/resource. */
542 if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
543 /* GWS and OA don't need any alignment. */
544 page_align = bp->byte_align;
547 } else if (bp->domain & AMDGPU_GEM_DOMAIN_GDS) {
548 /* Both size and alignment must be a multiple of 4. */
549 page_align = ALIGN(bp->byte_align, 4);
550 size = ALIGN(size, 4) << PAGE_SHIFT;
552 /* Memory should be aligned at least to a page size. */
553 page_align = ALIGN(bp->byte_align, PAGE_SIZE) >> PAGE_SHIFT;
554 size = ALIGN(size, PAGE_SIZE);
557 if (!amdgpu_bo_validate_size(adev, size, bp->domain))
560 BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo));
563 bo = kvzalloc(bp->bo_ptr_size, GFP_KERNEL);
566 drm_gem_private_object_init(adev_to_drm(adev), &bo->tbo.base, size);
568 bo->preferred_domains = bp->preferred_domain ? bp->preferred_domain :
570 bo->allowed_domains = bo->preferred_domains;
571 if (bp->type != ttm_bo_type_kernel &&
572 !(bp->flags & AMDGPU_GEM_CREATE_DISCARDABLE) &&
573 bo->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
574 bo->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
576 bo->flags = bp->flags;
578 if (!amdgpu_bo_support_uswc(bo->flags))
579 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
581 if (adev->ras_enabled)
582 bo->flags |= AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE;
584 bo->tbo.bdev = &adev->mman.bdev;
585 if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA |
586 AMDGPU_GEM_DOMAIN_GDS))
587 amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_CPU);
589 amdgpu_bo_placement_from_domain(bo, bp->domain);
590 if (bp->type == ttm_bo_type_kernel)
591 bo->tbo.priority = 1;
594 bp->destroy = &amdgpu_bo_destroy;
596 r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, bp->type,
597 &bo->placement, page_align, &ctx, NULL,
598 bp->resv, bp->destroy);
599 if (unlikely(r != 0))
602 if (!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
603 bo->tbo.resource->mem_type == TTM_PL_VRAM &&
604 amdgpu_bo_in_cpu_visible_vram(bo))
605 amdgpu_cs_report_moved_bytes(adev, ctx.bytes_moved,
608 amdgpu_cs_report_moved_bytes(adev, ctx.bytes_moved, 0);
610 if (bp->flags & AMDGPU_GEM_CREATE_VRAM_CLEARED &&
611 bo->tbo.resource->mem_type == TTM_PL_VRAM) {
612 struct dma_fence *fence;
614 r = amdgpu_fill_buffer(bo, 0, bo->tbo.base.resv, &fence);
618 dma_resv_add_fence(bo->tbo.base.resv, fence,
619 DMA_RESV_USAGE_KERNEL);
620 dma_fence_put(fence);
623 amdgpu_bo_unreserve(bo);
626 trace_amdgpu_bo_create(bo);
628 /* Treat CPU_ACCESS_REQUIRED only as a hint if given by UMD */
629 if (bp->type == ttm_bo_type_device)
630 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
636 dma_resv_unlock(bo->tbo.base.resv);
637 amdgpu_bo_unref(&bo);
642 * amdgpu_bo_create_user - create an &amdgpu_bo_user buffer object
643 * @adev: amdgpu device object
644 * @bp: parameters to be used for the buffer object
645 * @ubo_ptr: pointer to the buffer object pointer
647 * Create a BO to be used by user application;
650 * 0 for success or a negative error code on failure.
653 int amdgpu_bo_create_user(struct amdgpu_device *adev,
654 struct amdgpu_bo_param *bp,
655 struct amdgpu_bo_user **ubo_ptr)
657 struct amdgpu_bo *bo_ptr;
660 bp->bo_ptr_size = sizeof(struct amdgpu_bo_user);
661 bp->destroy = &amdgpu_bo_user_destroy;
662 r = amdgpu_bo_create(adev, bp, &bo_ptr);
666 *ubo_ptr = to_amdgpu_bo_user(bo_ptr);
671 * amdgpu_bo_create_vm - create an &amdgpu_bo_vm buffer object
672 * @adev: amdgpu device object
673 * @bp: parameters to be used for the buffer object
674 * @vmbo_ptr: pointer to the buffer object pointer
676 * Create a BO to be for GPUVM.
679 * 0 for success or a negative error code on failure.
682 int amdgpu_bo_create_vm(struct amdgpu_device *adev,
683 struct amdgpu_bo_param *bp,
684 struct amdgpu_bo_vm **vmbo_ptr)
686 struct amdgpu_bo *bo_ptr;
689 /* bo_ptr_size will be determined by the caller and it depends on
690 * num of amdgpu_vm_pt entries.
692 BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo_vm));
693 r = amdgpu_bo_create(adev, bp, &bo_ptr);
697 *vmbo_ptr = to_amdgpu_bo_vm(bo_ptr);
702 * amdgpu_bo_add_to_shadow_list - add a BO to the shadow list
704 * @vmbo: BO that will be inserted into the shadow list
706 * Insert a BO to the shadow list.
708 void amdgpu_bo_add_to_shadow_list(struct amdgpu_bo_vm *vmbo)
710 struct amdgpu_device *adev = amdgpu_ttm_adev(vmbo->bo.tbo.bdev);
712 mutex_lock(&adev->shadow_list_lock);
713 list_add_tail(&vmbo->shadow_list, &adev->shadow_list);
714 vmbo->shadow->parent = amdgpu_bo_ref(&vmbo->bo);
715 vmbo->shadow->tbo.destroy = &amdgpu_bo_vm_destroy;
716 mutex_unlock(&adev->shadow_list_lock);
720 * amdgpu_bo_restore_shadow - restore an &amdgpu_bo shadow
722 * @shadow: &amdgpu_bo shadow to be restored
723 * @fence: dma_fence associated with the operation
725 * Copies a buffer object's shadow content back to the object.
726 * This is used for recovering a buffer from its shadow in case of a gpu
727 * reset where vram context may be lost.
730 * 0 for success or a negative error code on failure.
732 int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow, struct dma_fence **fence)
735 struct amdgpu_device *adev = amdgpu_ttm_adev(shadow->tbo.bdev);
736 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
737 uint64_t shadow_addr, parent_addr;
739 shadow_addr = amdgpu_bo_gpu_offset(shadow);
740 parent_addr = amdgpu_bo_gpu_offset(shadow->parent);
742 return amdgpu_copy_buffer(ring, shadow_addr, parent_addr,
743 amdgpu_bo_size(shadow), NULL, fence,
748 * amdgpu_bo_kmap - map an &amdgpu_bo buffer object
749 * @bo: &amdgpu_bo buffer object to be mapped
750 * @ptr: kernel virtual address to be returned
752 * Calls ttm_bo_kmap() to set up the kernel virtual mapping; calls
753 * amdgpu_bo_kptr() to get the kernel virtual address.
756 * 0 for success or a negative error code on failure.
758 int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr)
763 if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
766 r = dma_resv_wait_timeout(bo->tbo.base.resv, DMA_RESV_USAGE_KERNEL,
767 false, MAX_SCHEDULE_TIMEOUT);
771 kptr = amdgpu_bo_kptr(bo);
778 r = ttm_bo_kmap(&bo->tbo, 0, PFN_UP(bo->tbo.base.size), &bo->kmap);
783 *ptr = amdgpu_bo_kptr(bo);
789 * amdgpu_bo_kptr - returns a kernel virtual address of the buffer object
790 * @bo: &amdgpu_bo buffer object
792 * Calls ttm_kmap_obj_virtual() to get the kernel virtual address
795 * the virtual address of a buffer object area.
797 void *amdgpu_bo_kptr(struct amdgpu_bo *bo)
801 return ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
805 * amdgpu_bo_kunmap - unmap an &amdgpu_bo buffer object
806 * @bo: &amdgpu_bo buffer object to be unmapped
808 * Unmaps a kernel map set up by amdgpu_bo_kmap().
810 void amdgpu_bo_kunmap(struct amdgpu_bo *bo)
813 ttm_bo_kunmap(&bo->kmap);
817 * amdgpu_bo_ref - reference an &amdgpu_bo buffer object
818 * @bo: &amdgpu_bo buffer object
820 * References the contained &ttm_buffer_object.
823 * a refcounted pointer to the &amdgpu_bo buffer object.
825 struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo)
830 ttm_bo_get(&bo->tbo);
835 * amdgpu_bo_unref - unreference an &amdgpu_bo buffer object
836 * @bo: &amdgpu_bo buffer object
838 * Unreferences the contained &ttm_buffer_object and clear the pointer
840 void amdgpu_bo_unref(struct amdgpu_bo **bo)
842 struct ttm_buffer_object *tbo;
853 * amdgpu_bo_pin_restricted - pin an &amdgpu_bo buffer object
854 * @bo: &amdgpu_bo buffer object to be pinned
855 * @domain: domain to be pinned to
856 * @min_offset: the start of requested address range
857 * @max_offset: the end of requested address range
859 * Pins the buffer object according to requested domain and address range. If
860 * the memory is unbound gart memory, binds the pages into gart table. Adjusts
861 * pin_count and pin_size accordingly.
863 * Pinning means to lock pages in memory along with keeping them at a fixed
864 * offset. It is required when a buffer can not be moved, for example, when
865 * a display buffer is being scanned out.
867 * Compared with amdgpu_bo_pin(), this function gives more flexibility on
868 * where to pin a buffer if there are specific restrictions on where a buffer
872 * 0 for success or a negative error code on failure.
874 int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
875 u64 min_offset, u64 max_offset)
877 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
878 struct ttm_operation_ctx ctx = { false, false };
881 if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm))
884 if (WARN_ON_ONCE(min_offset > max_offset))
887 /* Check domain to be pinned to against preferred domains */
888 if (bo->preferred_domains & domain)
889 domain = bo->preferred_domains & domain;
891 /* A shared bo cannot be migrated to VRAM */
892 if (bo->tbo.base.import_attach) {
893 if (domain & AMDGPU_GEM_DOMAIN_GTT)
894 domain = AMDGPU_GEM_DOMAIN_GTT;
899 if (bo->tbo.pin_count) {
900 uint32_t mem_type = bo->tbo.resource->mem_type;
901 uint32_t mem_flags = bo->tbo.resource->placement;
903 if (!(domain & amdgpu_mem_type_to_domain(mem_type)))
906 if ((mem_type == TTM_PL_VRAM) &&
907 (bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) &&
908 !(mem_flags & TTM_PL_FLAG_CONTIGUOUS))
911 ttm_bo_pin(&bo->tbo);
913 if (max_offset != 0) {
914 u64 domain_start = amdgpu_ttm_domain_start(adev,
916 WARN_ON_ONCE(max_offset <
917 (amdgpu_bo_gpu_offset(bo) - domain_start));
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_domain(adev, domain);
928 if (bo->tbo.base.import_attach)
929 dma_buf_pin(bo->tbo.base.import_attach);
931 /* force to pin into visible video ram */
932 if (!(bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS))
933 bo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
934 amdgpu_bo_placement_from_domain(bo, domain);
935 for (i = 0; i < bo->placement.num_placement; i++) {
938 fpfn = min_offset >> PAGE_SHIFT;
939 lpfn = max_offset >> PAGE_SHIFT;
941 if (fpfn > bo->placements[i].fpfn)
942 bo->placements[i].fpfn = fpfn;
943 if (!bo->placements[i].lpfn ||
944 (lpfn && lpfn < bo->placements[i].lpfn))
945 bo->placements[i].lpfn = lpfn;
948 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
950 dev_err(adev->dev, "%p pin failed\n", bo);
954 ttm_bo_pin(&bo->tbo);
956 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
957 if (domain == AMDGPU_GEM_DOMAIN_VRAM) {
958 atomic64_add(amdgpu_bo_size(bo), &adev->vram_pin_size);
959 atomic64_add(amdgpu_vram_mgr_bo_visible_size(bo),
960 &adev->visible_pin_size);
961 } else if (domain == AMDGPU_GEM_DOMAIN_GTT) {
962 atomic64_add(amdgpu_bo_size(bo), &adev->gart_pin_size);
970 * amdgpu_bo_pin - pin an &amdgpu_bo buffer object
971 * @bo: &amdgpu_bo buffer object to be pinned
972 * @domain: domain to be pinned to
974 * A simple wrapper to amdgpu_bo_pin_restricted().
975 * Provides a simpler API for buffers that do not have any strict restrictions
976 * on where a buffer must be located.
979 * 0 for success or a negative error code on failure.
981 int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain)
983 bo->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
984 return amdgpu_bo_pin_restricted(bo, domain, 0, 0);
988 * amdgpu_bo_unpin - unpin an &amdgpu_bo buffer object
989 * @bo: &amdgpu_bo buffer object to be unpinned
991 * Decreases the pin_count, and clears the flags if pin_count reaches 0.
992 * Changes placement and pin size accordingly.
995 * 0 for success or a negative error code on failure.
997 void amdgpu_bo_unpin(struct amdgpu_bo *bo)
999 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1001 ttm_bo_unpin(&bo->tbo);
1002 if (bo->tbo.pin_count)
1005 if (bo->tbo.base.import_attach)
1006 dma_buf_unpin(bo->tbo.base.import_attach);
1008 if (bo->tbo.resource->mem_type == TTM_PL_VRAM) {
1009 atomic64_sub(amdgpu_bo_size(bo), &adev->vram_pin_size);
1010 atomic64_sub(amdgpu_vram_mgr_bo_visible_size(bo),
1011 &adev->visible_pin_size);
1012 } else if (bo->tbo.resource->mem_type == TTM_PL_TT) {
1013 atomic64_sub(amdgpu_bo_size(bo), &adev->gart_pin_size);
1017 static const char *amdgpu_vram_names[] = {
1034 * amdgpu_bo_init - initialize memory manager
1035 * @adev: amdgpu device object
1037 * Calls amdgpu_ttm_init() to initialize amdgpu memory manager.
1040 * 0 for success or a negative error code on failure.
1042 int amdgpu_bo_init(struct amdgpu_device *adev)
1044 /* On A+A platform, VRAM can be mapped as WB */
1045 if (!adev->gmc.xgmi.connected_to_cpu) {
1046 /* reserve PAT memory space to WC for VRAM */
1047 int r = arch_io_reserve_memtype_wc(adev->gmc.aper_base,
1048 adev->gmc.aper_size);
1051 DRM_ERROR("Unable to set WC memtype for the aperture base\n");
1055 /* Add an MTRR for the VRAM */
1056 adev->gmc.vram_mtrr = arch_phys_wc_add(adev->gmc.aper_base,
1057 adev->gmc.aper_size);
1060 DRM_INFO("Detected VRAM RAM=%lluM, BAR=%lluM\n",
1061 adev->gmc.mc_vram_size >> 20,
1062 (unsigned long long)adev->gmc.aper_size >> 20);
1063 DRM_INFO("RAM width %dbits %s\n",
1064 adev->gmc.vram_width, amdgpu_vram_names[adev->gmc.vram_type]);
1065 return amdgpu_ttm_init(adev);
1069 * amdgpu_bo_fini - tear down memory manager
1070 * @adev: amdgpu device object
1072 * Reverses amdgpu_bo_init() to tear down memory manager.
1074 void amdgpu_bo_fini(struct amdgpu_device *adev)
1078 amdgpu_ttm_fini(adev);
1080 if (drm_dev_enter(adev_to_drm(adev), &idx)) {
1082 if (!adev->gmc.xgmi.connected_to_cpu) {
1083 arch_phys_wc_del(adev->gmc.vram_mtrr);
1084 arch_io_free_memtype_wc(adev->gmc.aper_base, adev->gmc.aper_size);
1091 * amdgpu_bo_set_tiling_flags - set tiling flags
1092 * @bo: &amdgpu_bo buffer object
1093 * @tiling_flags: new flags
1095 * Sets buffer object's tiling flags with the new one. Used by GEM ioctl or
1096 * kernel driver to set the tiling flags on a buffer.
1099 * 0 for success or a negative error code on failure.
1101 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags)
1103 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1104 struct amdgpu_bo_user *ubo;
1106 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1107 if (adev->family <= AMDGPU_FAMILY_CZ &&
1108 AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT) > 6)
1111 ubo = to_amdgpu_bo_user(bo);
1112 ubo->tiling_flags = tiling_flags;
1117 * amdgpu_bo_get_tiling_flags - get tiling flags
1118 * @bo: &amdgpu_bo buffer object
1119 * @tiling_flags: returned flags
1121 * Gets buffer object's tiling flags. Used by GEM ioctl or kernel driver to
1122 * set the tiling flags on a buffer.
1124 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags)
1126 struct amdgpu_bo_user *ubo;
1128 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1129 dma_resv_assert_held(bo->tbo.base.resv);
1130 ubo = to_amdgpu_bo_user(bo);
1133 *tiling_flags = ubo->tiling_flags;
1137 * amdgpu_bo_set_metadata - set metadata
1138 * @bo: &amdgpu_bo buffer object
1139 * @metadata: new metadata
1140 * @metadata_size: size of the new metadata
1141 * @flags: flags of the new metadata
1143 * Sets buffer object's metadata, its size and flags.
1144 * Used via GEM ioctl.
1147 * 0 for success or a negative error code on failure.
1149 int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata,
1150 uint32_t metadata_size, uint64_t flags)
1152 struct amdgpu_bo_user *ubo;
1155 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1156 ubo = to_amdgpu_bo_user(bo);
1157 if (!metadata_size) {
1158 if (ubo->metadata_size) {
1159 kfree(ubo->metadata);
1160 ubo->metadata = NULL;
1161 ubo->metadata_size = 0;
1166 if (metadata == NULL)
1169 buffer = kmemdup(metadata, metadata_size, GFP_KERNEL);
1173 kfree(ubo->metadata);
1174 ubo->metadata_flags = flags;
1175 ubo->metadata = buffer;
1176 ubo->metadata_size = metadata_size;
1182 * amdgpu_bo_get_metadata - get metadata
1183 * @bo: &amdgpu_bo buffer object
1184 * @buffer: returned metadata
1185 * @buffer_size: size of the buffer
1186 * @metadata_size: size of the returned metadata
1187 * @flags: flags of the returned metadata
1189 * Gets buffer object's metadata, its size and flags. buffer_size shall not be
1190 * less than metadata_size.
1191 * Used via GEM ioctl.
1194 * 0 for success or a negative error code on failure.
1196 int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer,
1197 size_t buffer_size, uint32_t *metadata_size,
1200 struct amdgpu_bo_user *ubo;
1202 if (!buffer && !metadata_size)
1205 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1206 ubo = to_amdgpu_bo_user(bo);
1208 *metadata_size = ubo->metadata_size;
1211 if (buffer_size < ubo->metadata_size)
1214 if (ubo->metadata_size)
1215 memcpy(buffer, ubo->metadata, ubo->metadata_size);
1219 *flags = ubo->metadata_flags;
1225 * amdgpu_bo_move_notify - notification about a memory move
1226 * @bo: pointer to a buffer object
1227 * @evict: if this move is evicting the buffer from the graphics address space
1228 * @new_mem: new information of the bufer object
1230 * Marks the corresponding &amdgpu_bo buffer object as invalid, also performs
1232 * TTM driver callback which is called when ttm moves a buffer.
1234 void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
1236 struct ttm_resource *new_mem)
1238 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1239 struct amdgpu_bo *abo;
1240 struct ttm_resource *old_mem = bo->resource;
1242 if (!amdgpu_bo_is_amdgpu_bo(bo))
1245 abo = ttm_to_amdgpu_bo(bo);
1246 amdgpu_vm_bo_invalidate(adev, abo, evict);
1248 amdgpu_bo_kunmap(abo);
1250 if (abo->tbo.base.dma_buf && !abo->tbo.base.import_attach &&
1251 bo->resource->mem_type != TTM_PL_SYSTEM)
1252 dma_buf_move_notify(abo->tbo.base.dma_buf);
1254 /* remember the eviction */
1256 atomic64_inc(&adev->num_evictions);
1258 /* update statistics */
1262 /* move_notify is called before move happens */
1263 trace_amdgpu_bo_move(abo, new_mem->mem_type, old_mem->mem_type);
1266 void amdgpu_bo_get_memory(struct amdgpu_bo *bo,
1267 struct amdgpu_mem_stats *stats)
1269 unsigned int domain;
1270 uint64_t size = amdgpu_bo_size(bo);
1272 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
1274 case AMDGPU_GEM_DOMAIN_VRAM:
1275 stats->vram += size;
1276 if (amdgpu_bo_in_cpu_visible_vram(bo))
1277 stats->visible_vram += size;
1279 case AMDGPU_GEM_DOMAIN_GTT:
1282 case AMDGPU_GEM_DOMAIN_CPU:
1288 if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) {
1289 stats->requested_vram += size;
1290 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
1291 stats->requested_visible_vram += size;
1293 if (domain != AMDGPU_GEM_DOMAIN_VRAM) {
1294 stats->evicted_vram += size;
1295 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
1296 stats->evicted_visible_vram += size;
1298 } else if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_GTT) {
1299 stats->requested_gtt += size;
1304 * amdgpu_bo_release_notify - notification about a BO being released
1305 * @bo: pointer to a buffer object
1307 * Wipes VRAM buffers whose contents should not be leaked before the
1308 * memory is released.
1310 void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
1312 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1313 struct dma_fence *fence = NULL;
1314 struct amdgpu_bo *abo;
1317 if (!amdgpu_bo_is_amdgpu_bo(bo))
1320 abo = ttm_to_amdgpu_bo(bo);
1323 amdgpu_amdkfd_release_notify(abo);
1325 /* We only remove the fence if the resv has individualized. */
1326 WARN_ON_ONCE(bo->type == ttm_bo_type_kernel
1327 && bo->base.resv != &bo->base._resv);
1328 if (bo->base.resv == &bo->base._resv)
1329 amdgpu_amdkfd_remove_fence_on_pt_pd_bos(abo);
1331 if (!bo->resource || bo->resource->mem_type != TTM_PL_VRAM ||
1332 !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE) ||
1333 adev->in_suspend || drm_dev_is_unplugged(adev_to_drm(adev)))
1336 if (WARN_ON_ONCE(!dma_resv_trylock(bo->base.resv)))
1339 r = amdgpu_fill_buffer(abo, AMDGPU_POISON, bo->base.resv, &fence);
1341 amdgpu_bo_fence(abo, fence, false);
1342 dma_fence_put(fence);
1345 dma_resv_unlock(bo->base.resv);
1349 * amdgpu_bo_fault_reserve_notify - notification about a memory fault
1350 * @bo: pointer to a buffer object
1352 * Notifies the driver we are taking a fault on this BO and have reserved it,
1353 * also performs bookkeeping.
1354 * TTM driver callback for dealing with vm faults.
1357 * 0 for success or a negative error code on failure.
1359 vm_fault_t amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
1361 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1362 struct ttm_operation_ctx ctx = { false, false };
1363 struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo);
1366 /* Remember that this BO was accessed by the CPU */
1367 abo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
1369 if (bo->resource->mem_type != TTM_PL_VRAM)
1372 if (amdgpu_bo_in_cpu_visible_vram(abo))
1375 /* Can't move a pinned BO to visible VRAM */
1376 if (abo->tbo.pin_count > 0)
1377 return VM_FAULT_SIGBUS;
1379 /* hurrah the memory is not visible ! */
1380 atomic64_inc(&adev->num_vram_cpu_page_faults);
1381 amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM |
1382 AMDGPU_GEM_DOMAIN_GTT);
1384 /* Avoid costly evictions; only set GTT as a busy placement */
1385 abo->placement.num_busy_placement = 1;
1386 abo->placement.busy_placement = &abo->placements[1];
1388 r = ttm_bo_validate(bo, &abo->placement, &ctx);
1389 if (unlikely(r == -EBUSY || r == -ERESTARTSYS))
1390 return VM_FAULT_NOPAGE;
1391 else if (unlikely(r))
1392 return VM_FAULT_SIGBUS;
1394 /* this should never happen */
1395 if (bo->resource->mem_type == TTM_PL_VRAM &&
1396 !amdgpu_bo_in_cpu_visible_vram(abo))
1397 return VM_FAULT_SIGBUS;
1399 ttm_bo_move_to_lru_tail_unlocked(bo);
1404 * amdgpu_bo_fence - add fence to buffer object
1406 * @bo: buffer object in question
1407 * @fence: fence to add
1408 * @shared: true if fence should be added shared
1411 void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence,
1414 struct dma_resv *resv = bo->tbo.base.resv;
1417 r = dma_resv_reserve_fences(resv, 1);
1419 /* As last resort on OOM we block for the fence */
1420 dma_fence_wait(fence, false);
1424 dma_resv_add_fence(resv, fence, shared ? DMA_RESV_USAGE_READ :
1425 DMA_RESV_USAGE_WRITE);
1429 * amdgpu_bo_sync_wait_resv - Wait for BO reservation fences
1431 * @adev: amdgpu device pointer
1432 * @resv: reservation object to sync to
1433 * @sync_mode: synchronization mode
1434 * @owner: fence owner
1435 * @intr: Whether the wait is interruptible
1437 * Extract the fences from the reservation object and waits for them to finish.
1440 * 0 on success, errno otherwise.
1442 int amdgpu_bo_sync_wait_resv(struct amdgpu_device *adev, struct dma_resv *resv,
1443 enum amdgpu_sync_mode sync_mode, void *owner,
1446 struct amdgpu_sync sync;
1449 amdgpu_sync_create(&sync);
1450 amdgpu_sync_resv(adev, &sync, resv, sync_mode, owner);
1451 r = amdgpu_sync_wait(&sync, intr);
1452 amdgpu_sync_free(&sync);
1457 * amdgpu_bo_sync_wait - Wrapper for amdgpu_bo_sync_wait_resv
1458 * @bo: buffer object to wait for
1459 * @owner: fence owner
1460 * @intr: Whether the wait is interruptible
1462 * Wrapper to wait for fences in a BO.
1464 * 0 on success, errno otherwise.
1466 int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr)
1468 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1470 return amdgpu_bo_sync_wait_resv(adev, bo->tbo.base.resv,
1471 AMDGPU_SYNC_NE_OWNER, owner, intr);
1475 * amdgpu_bo_gpu_offset - return GPU offset of bo
1476 * @bo: amdgpu object for which we query the offset
1478 * Note: object should either be pinned or reserved when calling this
1479 * function, it might be useful to add check for this for debugging.
1482 * current GPU offset of the object.
1484 u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
1486 WARN_ON_ONCE(bo->tbo.resource->mem_type == TTM_PL_SYSTEM);
1487 WARN_ON_ONCE(!dma_resv_is_locked(bo->tbo.base.resv) &&
1488 !bo->tbo.pin_count && bo->tbo.type != ttm_bo_type_kernel);
1489 WARN_ON_ONCE(bo->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET);
1490 WARN_ON_ONCE(bo->tbo.resource->mem_type == TTM_PL_VRAM &&
1491 !(bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS));
1493 return amdgpu_bo_gpu_offset_no_check(bo);
1497 * amdgpu_bo_gpu_offset_no_check - return GPU offset of bo
1498 * @bo: amdgpu object for which we query the offset
1501 * current GPU offset of the object without raising warnings.
1503 u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo)
1505 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1508 offset = (bo->tbo.resource->start << PAGE_SHIFT) +
1509 amdgpu_ttm_domain_start(adev, bo->tbo.resource->mem_type);
1511 return amdgpu_gmc_sign_extend(offset);
1515 * amdgpu_bo_get_preferred_domain - get preferred domain
1516 * @adev: amdgpu device object
1517 * @domain: allowed :ref:`memory domains <amdgpu_memory_domains>`
1520 * Which of the allowed domains is preferred for allocating the BO.
1522 uint32_t amdgpu_bo_get_preferred_domain(struct amdgpu_device *adev,
1525 if ((domain == (AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT)) &&
1526 ((adev->asic_type == CHIP_CARRIZO) || (adev->asic_type == CHIP_STONEY))) {
1527 domain = AMDGPU_GEM_DOMAIN_VRAM;
1528 if (adev->gmc.real_vram_size <= AMDGPU_SG_THRESHOLD)
1529 domain = AMDGPU_GEM_DOMAIN_GTT;
1534 #if defined(CONFIG_DEBUG_FS)
1535 #define amdgpu_bo_print_flag(m, bo, flag) \
1537 if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
1538 seq_printf((m), " " #flag); \
1543 * amdgpu_bo_print_info - print BO info in debugfs file
1545 * @id: Index or Id of the BO
1546 * @bo: Requested BO for printing info
1549 * Print BO information in debugfs file
1552 * Size of the BO in bytes.
1554 u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m)
1556 struct dma_buf_attachment *attachment;
1557 struct dma_buf *dma_buf;
1558 unsigned int domain;
1559 const char *placement;
1560 unsigned int pin_count;
1563 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
1565 case AMDGPU_GEM_DOMAIN_VRAM:
1568 case AMDGPU_GEM_DOMAIN_GTT:
1571 case AMDGPU_GEM_DOMAIN_CPU:
1577 size = amdgpu_bo_size(bo);
1578 seq_printf(m, "\t\t0x%08x: %12lld byte %s",
1579 id, size, placement);
1581 pin_count = READ_ONCE(bo->tbo.pin_count);
1583 seq_printf(m, " pin count %d", pin_count);
1585 dma_buf = READ_ONCE(bo->tbo.base.dma_buf);
1586 attachment = READ_ONCE(bo->tbo.base.import_attach);
1589 seq_printf(m, " imported from ino:%lu", file_inode(dma_buf->file)->i_ino);
1591 seq_printf(m, " exported as ino:%lu", file_inode(dma_buf->file)->i_ino);
1593 amdgpu_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
1594 amdgpu_bo_print_flag(m, bo, NO_CPU_ACCESS);
1595 amdgpu_bo_print_flag(m, bo, CPU_GTT_USWC);
1596 amdgpu_bo_print_flag(m, bo, VRAM_CLEARED);
1597 amdgpu_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
1598 amdgpu_bo_print_flag(m, bo, VM_ALWAYS_VALID);
1599 amdgpu_bo_print_flag(m, bo, EXPLICIT_SYNC);