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;
134 int8_t mem_id = KFD_XCP_MEM_ID(adev, abo->xcp_id);
136 if (adev->gmc.mem_partitions && mem_id >= 0) {
137 places[c].fpfn = adev->gmc.mem_partitions[mem_id].range.fpfn;
139 * memory partition range lpfn is inclusive start + size - 1
140 * TTM place lpfn is exclusive start + size
142 places[c].lpfn = adev->gmc.mem_partitions[mem_id].range.lpfn + 1;
147 places[c].mem_type = TTM_PL_VRAM;
150 if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
151 places[c].lpfn = min_not_zero(places[c].lpfn, visible_pfn);
152 else if (adev->gmc.real_vram_size != adev->gmc.visible_vram_size)
153 places[c].flags |= TTM_PL_FLAG_TOPDOWN;
155 if (flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)
156 places[c].flags |= TTM_PL_FLAG_CONTIGUOUS;
160 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
164 abo->flags & AMDGPU_GEM_CREATE_PREEMPTIBLE ?
165 AMDGPU_PL_PREEMPT : TTM_PL_TT;
170 if (domain & AMDGPU_GEM_DOMAIN_CPU) {
173 places[c].mem_type = TTM_PL_SYSTEM;
178 if (domain & AMDGPU_GEM_DOMAIN_GDS) {
181 places[c].mem_type = AMDGPU_PL_GDS;
186 if (domain & AMDGPU_GEM_DOMAIN_GWS) {
189 places[c].mem_type = AMDGPU_PL_GWS;
194 if (domain & AMDGPU_GEM_DOMAIN_OA) {
197 places[c].mem_type = AMDGPU_PL_OA;
205 places[c].mem_type = TTM_PL_SYSTEM;
210 BUG_ON(c > AMDGPU_BO_MAX_PLACEMENTS);
212 placement->num_placement = c;
213 placement->placement = places;
215 placement->num_busy_placement = c;
216 placement->busy_placement = places;
220 * amdgpu_bo_create_reserved - create reserved BO for kernel use
222 * @adev: amdgpu device object
223 * @size: size for the new BO
224 * @align: alignment for the new BO
225 * @domain: where to place it
226 * @bo_ptr: used to initialize BOs in structures
227 * @gpu_addr: GPU addr of the pinned BO
228 * @cpu_addr: optional CPU address mapping
230 * Allocates and pins a BO for kernel internal use, and returns it still
233 * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
236 * 0 on success, negative error code otherwise.
238 int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
239 unsigned long size, int align,
240 u32 domain, struct amdgpu_bo **bo_ptr,
241 u64 *gpu_addr, void **cpu_addr)
243 struct amdgpu_bo_param bp;
248 amdgpu_bo_unref(bo_ptr);
252 memset(&bp, 0, sizeof(bp));
254 bp.byte_align = align;
256 bp.flags = cpu_addr ? AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED
257 : AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
258 bp.flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
259 bp.type = ttm_bo_type_kernel;
261 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
264 r = amdgpu_bo_create(adev, &bp, bo_ptr);
266 dev_err(adev->dev, "(%d) failed to allocate kernel bo\n",
273 r = amdgpu_bo_reserve(*bo_ptr, false);
275 dev_err(adev->dev, "(%d) failed to reserve kernel bo\n", r);
279 r = amdgpu_bo_pin(*bo_ptr, domain);
281 dev_err(adev->dev, "(%d) kernel bo pin failed\n", r);
282 goto error_unreserve;
285 r = amdgpu_ttm_alloc_gart(&(*bo_ptr)->tbo);
287 dev_err(adev->dev, "%p bind failed\n", *bo_ptr);
292 *gpu_addr = amdgpu_bo_gpu_offset(*bo_ptr);
295 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
297 dev_err(adev->dev, "(%d) kernel bo map failed\n", r);
305 amdgpu_bo_unpin(*bo_ptr);
307 amdgpu_bo_unreserve(*bo_ptr);
311 amdgpu_bo_unref(bo_ptr);
317 * amdgpu_bo_create_kernel - create BO for kernel use
319 * @adev: amdgpu device object
320 * @size: size for the new BO
321 * @align: alignment for the new BO
322 * @domain: where to place it
323 * @bo_ptr: used to initialize BOs in structures
324 * @gpu_addr: GPU addr of the pinned BO
325 * @cpu_addr: optional CPU address mapping
327 * Allocates and pins a BO for kernel internal use.
329 * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
332 * 0 on success, negative error code otherwise.
334 int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
335 unsigned long size, int align,
336 u32 domain, struct amdgpu_bo **bo_ptr,
337 u64 *gpu_addr, void **cpu_addr)
341 r = amdgpu_bo_create_reserved(adev, size, align, domain, bo_ptr,
348 amdgpu_bo_unreserve(*bo_ptr);
354 * amdgpu_bo_create_kernel_at - create BO for kernel use at specific location
356 * @adev: amdgpu device object
357 * @offset: offset of the BO
358 * @size: size of the BO
359 * @bo_ptr: used to initialize BOs in structures
360 * @cpu_addr: optional CPU address mapping
362 * Creates a kernel BO at a specific offset in VRAM.
365 * 0 on success, negative error code otherwise.
367 int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,
368 uint64_t offset, uint64_t size,
369 struct amdgpu_bo **bo_ptr, void **cpu_addr)
371 struct ttm_operation_ctx ctx = { false, false };
376 size = ALIGN(size, PAGE_SIZE);
378 r = amdgpu_bo_create_reserved(adev, size, PAGE_SIZE,
379 AMDGPU_GEM_DOMAIN_VRAM, bo_ptr, NULL,
384 if ((*bo_ptr) == NULL)
388 * Remove the original mem node and create a new one at the request
392 amdgpu_bo_kunmap(*bo_ptr);
394 ttm_resource_free(&(*bo_ptr)->tbo, &(*bo_ptr)->tbo.resource);
396 for (i = 0; i < (*bo_ptr)->placement.num_placement; ++i) {
397 (*bo_ptr)->placements[i].fpfn = offset >> PAGE_SHIFT;
398 (*bo_ptr)->placements[i].lpfn = (offset + size) >> PAGE_SHIFT;
400 r = ttm_bo_mem_space(&(*bo_ptr)->tbo, &(*bo_ptr)->placement,
401 &(*bo_ptr)->tbo.resource, &ctx);
406 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
411 amdgpu_bo_unreserve(*bo_ptr);
415 amdgpu_bo_unreserve(*bo_ptr);
416 amdgpu_bo_unref(bo_ptr);
421 * amdgpu_bo_free_kernel - free BO for kernel use
423 * @bo: amdgpu BO to free
424 * @gpu_addr: pointer to where the BO's GPU memory space address was stored
425 * @cpu_addr: pointer to where the BO's CPU memory space address was stored
427 * unmaps and unpin a BO for kernel internal use.
429 void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
435 WARN_ON(amdgpu_ttm_adev((*bo)->tbo.bdev)->in_suspend);
437 if (likely(amdgpu_bo_reserve(*bo, true) == 0)) {
439 amdgpu_bo_kunmap(*bo);
441 amdgpu_bo_unpin(*bo);
442 amdgpu_bo_unreserve(*bo);
453 /* Validate bo size is bit bigger then the request domain */
454 static bool amdgpu_bo_validate_size(struct amdgpu_device *adev,
455 unsigned long size, u32 domain)
457 struct ttm_resource_manager *man = NULL;
460 * If GTT is part of requested domains the check must succeed to
461 * allow fall back to GTT.
463 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
464 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT);
466 if (man && size < man->size)
469 WARN_ON_ONCE("GTT domain requested but GTT mem manager uninitialized");
471 } else if (domain & AMDGPU_GEM_DOMAIN_VRAM) {
472 man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
474 if (man && size < man->size)
479 /* TODO add more domains checks, such as AMDGPU_GEM_DOMAIN_CPU */
484 DRM_DEBUG("BO size %lu > total memory in domain: %llu\n", size,
489 bool amdgpu_bo_support_uswc(u64 bo_flags)
493 /* XXX: Write-combined CPU mappings of GTT seem broken on 32-bit
494 * See https://bugs.freedesktop.org/show_bug.cgi?id=84627
497 #elif defined(CONFIG_X86) && !defined(CONFIG_X86_PAT)
498 /* Don't try to enable write-combining when it can't work, or things
500 * See https://bugs.freedesktop.org/show_bug.cgi?id=88758
503 #ifndef CONFIG_COMPILE_TEST
504 #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \
505 thanks to write-combining
508 if (bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)
509 DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for "
510 "better performance thanks to write-combining\n");
513 /* For architectures that don't support WC memory,
514 * mask out the WC flag from the BO
516 if (!drm_arch_can_wc_memory())
524 * amdgpu_bo_create - create an &amdgpu_bo buffer object
525 * @adev: amdgpu device object
526 * @bp: parameters to be used for the buffer object
527 * @bo_ptr: pointer to the buffer object pointer
529 * Creates an &amdgpu_bo buffer object.
532 * 0 for success or a negative error code on failure.
534 int amdgpu_bo_create(struct amdgpu_device *adev,
535 struct amdgpu_bo_param *bp,
536 struct amdgpu_bo **bo_ptr)
538 struct ttm_operation_ctx ctx = {
539 .interruptible = (bp->type != ttm_bo_type_kernel),
540 .no_wait_gpu = bp->no_wait_gpu,
541 /* We opt to avoid OOM on system pages allocations */
542 .gfp_retry_mayfail = true,
543 .allow_res_evict = bp->type != ttm_bo_type_kernel,
546 struct amdgpu_bo *bo;
547 unsigned long page_align, size = bp->size;
550 /* Note that GDS/GWS/OA allocates 1 page per byte/resource. */
551 if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
552 /* GWS and OA don't need any alignment. */
553 page_align = bp->byte_align;
556 } else if (bp->domain & AMDGPU_GEM_DOMAIN_GDS) {
557 /* Both size and alignment must be a multiple of 4. */
558 page_align = ALIGN(bp->byte_align, 4);
559 size = ALIGN(size, 4) << PAGE_SHIFT;
561 /* Memory should be aligned at least to a page size. */
562 page_align = ALIGN(bp->byte_align, PAGE_SIZE) >> PAGE_SHIFT;
563 size = ALIGN(size, PAGE_SIZE);
566 if (!amdgpu_bo_validate_size(adev, size, bp->domain))
569 BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo));
572 bo = kvzalloc(bp->bo_ptr_size, GFP_KERNEL);
575 drm_gem_private_object_init(adev_to_drm(adev), &bo->tbo.base, size);
577 bo->preferred_domains = bp->preferred_domain ? bp->preferred_domain :
579 bo->allowed_domains = bo->preferred_domains;
580 if (bp->type != ttm_bo_type_kernel &&
581 !(bp->flags & AMDGPU_GEM_CREATE_DISCARDABLE) &&
582 bo->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
583 bo->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
585 bo->flags = bp->flags;
587 if (adev->gmc.mem_partitions)
588 /* For GPUs with spatial partitioning, bo->xcp_id=-1 means any partition */
589 bo->xcp_id = bp->xcp_id_plus1 - 1;
591 /* For GPUs without spatial partitioning */
594 if (!amdgpu_bo_support_uswc(bo->flags))
595 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
597 if (adev->ras_enabled)
598 bo->flags |= AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE;
600 bo->tbo.bdev = &adev->mman.bdev;
601 if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA |
602 AMDGPU_GEM_DOMAIN_GDS))
603 amdgpu_bo_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_CPU);
605 amdgpu_bo_placement_from_domain(bo, bp->domain);
606 if (bp->type == ttm_bo_type_kernel)
607 bo->tbo.priority = 1;
610 bp->destroy = &amdgpu_bo_destroy;
612 r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, bp->type,
613 &bo->placement, page_align, &ctx, NULL,
614 bp->resv, bp->destroy);
615 if (unlikely(r != 0))
618 if (!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
619 bo->tbo.resource->mem_type == TTM_PL_VRAM &&
620 amdgpu_bo_in_cpu_visible_vram(bo))
621 amdgpu_cs_report_moved_bytes(adev, ctx.bytes_moved,
624 amdgpu_cs_report_moved_bytes(adev, ctx.bytes_moved, 0);
626 if (bp->flags & AMDGPU_GEM_CREATE_VRAM_CLEARED &&
627 bo->tbo.resource->mem_type == TTM_PL_VRAM) {
628 struct dma_fence *fence;
630 r = amdgpu_fill_buffer(bo, 0, bo->tbo.base.resv, &fence, true);
634 dma_resv_add_fence(bo->tbo.base.resv, fence,
635 DMA_RESV_USAGE_KERNEL);
636 dma_fence_put(fence);
639 amdgpu_bo_unreserve(bo);
642 trace_amdgpu_bo_create(bo);
644 /* Treat CPU_ACCESS_REQUIRED only as a hint if given by UMD */
645 if (bp->type == ttm_bo_type_device)
646 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
652 dma_resv_unlock(bo->tbo.base.resv);
653 amdgpu_bo_unref(&bo);
658 * amdgpu_bo_create_user - create an &amdgpu_bo_user buffer object
659 * @adev: amdgpu device object
660 * @bp: parameters to be used for the buffer object
661 * @ubo_ptr: pointer to the buffer object pointer
663 * Create a BO to be used by user application;
666 * 0 for success or a negative error code on failure.
669 int amdgpu_bo_create_user(struct amdgpu_device *adev,
670 struct amdgpu_bo_param *bp,
671 struct amdgpu_bo_user **ubo_ptr)
673 struct amdgpu_bo *bo_ptr;
676 bp->bo_ptr_size = sizeof(struct amdgpu_bo_user);
677 bp->destroy = &amdgpu_bo_user_destroy;
678 r = amdgpu_bo_create(adev, bp, &bo_ptr);
682 *ubo_ptr = to_amdgpu_bo_user(bo_ptr);
687 * amdgpu_bo_create_vm - create an &amdgpu_bo_vm buffer object
688 * @adev: amdgpu device object
689 * @bp: parameters to be used for the buffer object
690 * @vmbo_ptr: pointer to the buffer object pointer
692 * Create a BO to be for GPUVM.
695 * 0 for success or a negative error code on failure.
698 int amdgpu_bo_create_vm(struct amdgpu_device *adev,
699 struct amdgpu_bo_param *bp,
700 struct amdgpu_bo_vm **vmbo_ptr)
702 struct amdgpu_bo *bo_ptr;
705 /* bo_ptr_size will be determined by the caller and it depends on
706 * num of amdgpu_vm_pt entries.
708 BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo_vm));
709 r = amdgpu_bo_create(adev, bp, &bo_ptr);
713 *vmbo_ptr = to_amdgpu_bo_vm(bo_ptr);
714 INIT_LIST_HEAD(&(*vmbo_ptr)->shadow_list);
715 /* Set destroy callback to amdgpu_bo_vm_destroy after vmbo->shadow_list
718 bo_ptr->tbo.destroy = &amdgpu_bo_vm_destroy;
723 * amdgpu_bo_add_to_shadow_list - add a BO to the shadow list
725 * @vmbo: BO that will be inserted into the shadow list
727 * Insert a BO to the shadow list.
729 void amdgpu_bo_add_to_shadow_list(struct amdgpu_bo_vm *vmbo)
731 struct amdgpu_device *adev = amdgpu_ttm_adev(vmbo->bo.tbo.bdev);
733 mutex_lock(&adev->shadow_list_lock);
734 list_add_tail(&vmbo->shadow_list, &adev->shadow_list);
735 mutex_unlock(&adev->shadow_list_lock);
739 * amdgpu_bo_restore_shadow - restore an &amdgpu_bo shadow
741 * @shadow: &amdgpu_bo shadow to be restored
742 * @fence: dma_fence associated with the operation
744 * Copies a buffer object's shadow content back to the object.
745 * This is used for recovering a buffer from its shadow in case of a gpu
746 * reset where vram context may be lost.
749 * 0 for success or a negative error code on failure.
751 int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow, struct dma_fence **fence)
754 struct amdgpu_device *adev = amdgpu_ttm_adev(shadow->tbo.bdev);
755 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
756 uint64_t shadow_addr, parent_addr;
758 shadow_addr = amdgpu_bo_gpu_offset(shadow);
759 parent_addr = amdgpu_bo_gpu_offset(shadow->parent);
761 return amdgpu_copy_buffer(ring, shadow_addr, parent_addr,
762 amdgpu_bo_size(shadow), NULL, fence,
767 * amdgpu_bo_kmap - map an &amdgpu_bo buffer object
768 * @bo: &amdgpu_bo buffer object to be mapped
769 * @ptr: kernel virtual address to be returned
771 * Calls ttm_bo_kmap() to set up the kernel virtual mapping; calls
772 * amdgpu_bo_kptr() to get the kernel virtual address.
775 * 0 for success or a negative error code on failure.
777 int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr)
782 if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
785 r = dma_resv_wait_timeout(bo->tbo.base.resv, DMA_RESV_USAGE_KERNEL,
786 false, MAX_SCHEDULE_TIMEOUT);
790 kptr = amdgpu_bo_kptr(bo);
797 r = ttm_bo_kmap(&bo->tbo, 0, PFN_UP(bo->tbo.base.size), &bo->kmap);
802 *ptr = amdgpu_bo_kptr(bo);
808 * amdgpu_bo_kptr - returns a kernel virtual address of the buffer object
809 * @bo: &amdgpu_bo buffer object
811 * Calls ttm_kmap_obj_virtual() to get the kernel virtual address
814 * the virtual address of a buffer object area.
816 void *amdgpu_bo_kptr(struct amdgpu_bo *bo)
820 return ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
824 * amdgpu_bo_kunmap - unmap an &amdgpu_bo buffer object
825 * @bo: &amdgpu_bo buffer object to be unmapped
827 * Unmaps a kernel map set up by amdgpu_bo_kmap().
829 void amdgpu_bo_kunmap(struct amdgpu_bo *bo)
832 ttm_bo_kunmap(&bo->kmap);
836 * amdgpu_bo_ref - reference an &amdgpu_bo buffer object
837 * @bo: &amdgpu_bo buffer object
839 * References the contained &ttm_buffer_object.
842 * a refcounted pointer to the &amdgpu_bo buffer object.
844 struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo)
849 ttm_bo_get(&bo->tbo);
854 * amdgpu_bo_unref - unreference an &amdgpu_bo buffer object
855 * @bo: &amdgpu_bo buffer object
857 * Unreferences the contained &ttm_buffer_object and clear the pointer
859 void amdgpu_bo_unref(struct amdgpu_bo **bo)
861 struct ttm_buffer_object *tbo;
872 * amdgpu_bo_pin_restricted - pin an &amdgpu_bo buffer object
873 * @bo: &amdgpu_bo buffer object to be pinned
874 * @domain: domain to be pinned to
875 * @min_offset: the start of requested address range
876 * @max_offset: the end of requested address range
878 * Pins the buffer object according to requested domain and address range. If
879 * the memory is unbound gart memory, binds the pages into gart table. Adjusts
880 * pin_count and pin_size accordingly.
882 * Pinning means to lock pages in memory along with keeping them at a fixed
883 * offset. It is required when a buffer can not be moved, for example, when
884 * a display buffer is being scanned out.
886 * Compared with amdgpu_bo_pin(), this function gives more flexibility on
887 * where to pin a buffer if there are specific restrictions on where a buffer
891 * 0 for success or a negative error code on failure.
893 int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
894 u64 min_offset, u64 max_offset)
896 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
897 struct ttm_operation_ctx ctx = { false, false };
900 if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm))
903 if (WARN_ON_ONCE(min_offset > max_offset))
906 /* Check domain to be pinned to against preferred domains */
907 if (bo->preferred_domains & domain)
908 domain = bo->preferred_domains & domain;
910 /* A shared bo cannot be migrated to VRAM */
911 if (bo->tbo.base.import_attach) {
912 if (domain & AMDGPU_GEM_DOMAIN_GTT)
913 domain = AMDGPU_GEM_DOMAIN_GTT;
918 if (bo->tbo.pin_count) {
919 uint32_t mem_type = bo->tbo.resource->mem_type;
920 uint32_t mem_flags = bo->tbo.resource->placement;
922 if (!(domain & amdgpu_mem_type_to_domain(mem_type)))
925 if ((mem_type == TTM_PL_VRAM) &&
926 (bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) &&
927 !(mem_flags & TTM_PL_FLAG_CONTIGUOUS))
930 ttm_bo_pin(&bo->tbo);
932 if (max_offset != 0) {
933 u64 domain_start = amdgpu_ttm_domain_start(adev,
935 WARN_ON_ONCE(max_offset <
936 (amdgpu_bo_gpu_offset(bo) - domain_start));
942 /* This assumes only APU display buffers are pinned with (VRAM|GTT).
943 * See function amdgpu_display_supported_domains()
945 domain = amdgpu_bo_get_preferred_domain(adev, domain);
947 if (bo->tbo.base.import_attach)
948 dma_buf_pin(bo->tbo.base.import_attach);
950 /* force to pin into visible video ram */
951 if (!(bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS))
952 bo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
953 amdgpu_bo_placement_from_domain(bo, domain);
954 for (i = 0; i < bo->placement.num_placement; i++) {
955 unsigned int fpfn, lpfn;
957 fpfn = min_offset >> PAGE_SHIFT;
958 lpfn = max_offset >> PAGE_SHIFT;
960 if (fpfn > bo->placements[i].fpfn)
961 bo->placements[i].fpfn = fpfn;
962 if (!bo->placements[i].lpfn ||
963 (lpfn && lpfn < bo->placements[i].lpfn))
964 bo->placements[i].lpfn = lpfn;
967 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
969 dev_err(adev->dev, "%p pin failed\n", bo);
973 ttm_bo_pin(&bo->tbo);
975 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
976 if (domain == AMDGPU_GEM_DOMAIN_VRAM) {
977 atomic64_add(amdgpu_bo_size(bo), &adev->vram_pin_size);
978 atomic64_add(amdgpu_vram_mgr_bo_visible_size(bo),
979 &adev->visible_pin_size);
980 } else if (domain == AMDGPU_GEM_DOMAIN_GTT) {
981 atomic64_add(amdgpu_bo_size(bo), &adev->gart_pin_size);
989 * amdgpu_bo_pin - pin an &amdgpu_bo buffer object
990 * @bo: &amdgpu_bo buffer object to be pinned
991 * @domain: domain to be pinned to
993 * A simple wrapper to amdgpu_bo_pin_restricted().
994 * Provides a simpler API for buffers that do not have any strict restrictions
995 * on where a buffer must be located.
998 * 0 for success or a negative error code on failure.
1000 int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain)
1002 bo->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
1003 return amdgpu_bo_pin_restricted(bo, domain, 0, 0);
1007 * amdgpu_bo_unpin - unpin an &amdgpu_bo buffer object
1008 * @bo: &amdgpu_bo buffer object to be unpinned
1010 * Decreases the pin_count, and clears the flags if pin_count reaches 0.
1011 * Changes placement and pin size accordingly.
1014 * 0 for success or a negative error code on failure.
1016 void amdgpu_bo_unpin(struct amdgpu_bo *bo)
1018 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1020 ttm_bo_unpin(&bo->tbo);
1021 if (bo->tbo.pin_count)
1024 if (bo->tbo.base.import_attach)
1025 dma_buf_unpin(bo->tbo.base.import_attach);
1027 if (bo->tbo.resource->mem_type == TTM_PL_VRAM) {
1028 atomic64_sub(amdgpu_bo_size(bo), &adev->vram_pin_size);
1029 atomic64_sub(amdgpu_vram_mgr_bo_visible_size(bo),
1030 &adev->visible_pin_size);
1031 } else if (bo->tbo.resource->mem_type == TTM_PL_TT) {
1032 atomic64_sub(amdgpu_bo_size(bo), &adev->gart_pin_size);
1036 static const char * const amdgpu_vram_names[] = {
1053 * amdgpu_bo_init - initialize memory manager
1054 * @adev: amdgpu device object
1056 * Calls amdgpu_ttm_init() to initialize amdgpu memory manager.
1059 * 0 for success or a negative error code on failure.
1061 int amdgpu_bo_init(struct amdgpu_device *adev)
1063 /* On A+A platform, VRAM can be mapped as WB */
1064 if (!adev->gmc.xgmi.connected_to_cpu && !adev->gmc.is_app_apu) {
1065 /* reserve PAT memory space to WC for VRAM */
1066 int r = arch_io_reserve_memtype_wc(adev->gmc.aper_base,
1067 adev->gmc.aper_size);
1070 DRM_ERROR("Unable to set WC memtype for the aperture base\n");
1074 /* Add an MTRR for the VRAM */
1075 adev->gmc.vram_mtrr = arch_phys_wc_add(adev->gmc.aper_base,
1076 adev->gmc.aper_size);
1079 DRM_INFO("Detected VRAM RAM=%lluM, BAR=%lluM\n",
1080 adev->gmc.mc_vram_size >> 20,
1081 (unsigned long long)adev->gmc.aper_size >> 20);
1082 DRM_INFO("RAM width %dbits %s\n",
1083 adev->gmc.vram_width, amdgpu_vram_names[adev->gmc.vram_type]);
1084 return amdgpu_ttm_init(adev);
1088 * amdgpu_bo_fini - tear down memory manager
1089 * @adev: amdgpu device object
1091 * Reverses amdgpu_bo_init() to tear down memory manager.
1093 void amdgpu_bo_fini(struct amdgpu_device *adev)
1097 amdgpu_ttm_fini(adev);
1099 if (drm_dev_enter(adev_to_drm(adev), &idx)) {
1100 if (!adev->gmc.xgmi.connected_to_cpu && !adev->gmc.is_app_apu) {
1101 arch_phys_wc_del(adev->gmc.vram_mtrr);
1102 arch_io_free_memtype_wc(adev->gmc.aper_base, adev->gmc.aper_size);
1109 * amdgpu_bo_set_tiling_flags - set tiling flags
1110 * @bo: &amdgpu_bo buffer object
1111 * @tiling_flags: new flags
1113 * Sets buffer object's tiling flags with the new one. Used by GEM ioctl or
1114 * kernel driver to set the tiling flags on a buffer.
1117 * 0 for success or a negative error code on failure.
1119 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags)
1121 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1122 struct amdgpu_bo_user *ubo;
1124 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1125 if (adev->family <= AMDGPU_FAMILY_CZ &&
1126 AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT) > 6)
1129 ubo = to_amdgpu_bo_user(bo);
1130 ubo->tiling_flags = tiling_flags;
1135 * amdgpu_bo_get_tiling_flags - get tiling flags
1136 * @bo: &amdgpu_bo buffer object
1137 * @tiling_flags: returned flags
1139 * Gets buffer object's tiling flags. Used by GEM ioctl or kernel driver to
1140 * set the tiling flags on a buffer.
1142 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags)
1144 struct amdgpu_bo_user *ubo;
1146 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1147 dma_resv_assert_held(bo->tbo.base.resv);
1148 ubo = to_amdgpu_bo_user(bo);
1151 *tiling_flags = ubo->tiling_flags;
1155 * amdgpu_bo_set_metadata - set metadata
1156 * @bo: &amdgpu_bo buffer object
1157 * @metadata: new metadata
1158 * @metadata_size: size of the new metadata
1159 * @flags: flags of the new metadata
1161 * Sets buffer object's metadata, its size and flags.
1162 * Used via GEM ioctl.
1165 * 0 for success or a negative error code on failure.
1167 int amdgpu_bo_set_metadata(struct amdgpu_bo *bo, void *metadata,
1168 u32 metadata_size, uint64_t flags)
1170 struct amdgpu_bo_user *ubo;
1173 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1174 ubo = to_amdgpu_bo_user(bo);
1175 if (!metadata_size) {
1176 if (ubo->metadata_size) {
1177 kfree(ubo->metadata);
1178 ubo->metadata = NULL;
1179 ubo->metadata_size = 0;
1184 if (metadata == NULL)
1187 buffer = kmemdup(metadata, metadata_size, GFP_KERNEL);
1191 kfree(ubo->metadata);
1192 ubo->metadata_flags = flags;
1193 ubo->metadata = buffer;
1194 ubo->metadata_size = metadata_size;
1200 * amdgpu_bo_get_metadata - get metadata
1201 * @bo: &amdgpu_bo buffer object
1202 * @buffer: returned metadata
1203 * @buffer_size: size of the buffer
1204 * @metadata_size: size of the returned metadata
1205 * @flags: flags of the returned metadata
1207 * Gets buffer object's metadata, its size and flags. buffer_size shall not be
1208 * less than metadata_size.
1209 * Used via GEM ioctl.
1212 * 0 for success or a negative error code on failure.
1214 int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer,
1215 size_t buffer_size, uint32_t *metadata_size,
1218 struct amdgpu_bo_user *ubo;
1220 if (!buffer && !metadata_size)
1223 BUG_ON(bo->tbo.type == ttm_bo_type_kernel);
1224 ubo = to_amdgpu_bo_user(bo);
1226 *metadata_size = ubo->metadata_size;
1229 if (buffer_size < ubo->metadata_size)
1232 if (ubo->metadata_size)
1233 memcpy(buffer, ubo->metadata, ubo->metadata_size);
1237 *flags = ubo->metadata_flags;
1243 * amdgpu_bo_move_notify - notification about a memory move
1244 * @bo: pointer to a buffer object
1245 * @evict: if this move is evicting the buffer from the graphics address space
1246 * @new_mem: new information of the bufer object
1248 * Marks the corresponding &amdgpu_bo buffer object as invalid, also performs
1250 * TTM driver callback which is called when ttm moves a buffer.
1252 void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
1254 struct ttm_resource *new_mem)
1256 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1257 struct amdgpu_bo *abo;
1258 struct ttm_resource *old_mem = bo->resource;
1260 if (!amdgpu_bo_is_amdgpu_bo(bo))
1263 abo = ttm_to_amdgpu_bo(bo);
1264 amdgpu_vm_bo_invalidate(adev, abo, evict);
1266 amdgpu_bo_kunmap(abo);
1268 if (abo->tbo.base.dma_buf && !abo->tbo.base.import_attach &&
1269 bo->resource->mem_type != TTM_PL_SYSTEM)
1270 dma_buf_move_notify(abo->tbo.base.dma_buf);
1272 /* remember the eviction */
1274 atomic64_inc(&adev->num_evictions);
1276 /* update statistics */
1280 /* move_notify is called before move happens */
1281 trace_amdgpu_bo_move(abo, new_mem->mem_type, old_mem->mem_type);
1284 void amdgpu_bo_get_memory(struct amdgpu_bo *bo,
1285 struct amdgpu_mem_stats *stats)
1287 unsigned int domain;
1288 uint64_t size = amdgpu_bo_size(bo);
1290 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
1292 case AMDGPU_GEM_DOMAIN_VRAM:
1293 stats->vram += size;
1294 if (amdgpu_bo_in_cpu_visible_vram(bo))
1295 stats->visible_vram += size;
1297 case AMDGPU_GEM_DOMAIN_GTT:
1300 case AMDGPU_GEM_DOMAIN_CPU:
1306 if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) {
1307 stats->requested_vram += size;
1308 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
1309 stats->requested_visible_vram += size;
1311 if (domain != AMDGPU_GEM_DOMAIN_VRAM) {
1312 stats->evicted_vram += size;
1313 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
1314 stats->evicted_visible_vram += size;
1316 } else if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_GTT) {
1317 stats->requested_gtt += size;
1322 * amdgpu_bo_release_notify - notification about a BO being released
1323 * @bo: pointer to a buffer object
1325 * Wipes VRAM buffers whose contents should not be leaked before the
1326 * memory is released.
1328 void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
1330 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1331 struct dma_fence *fence = NULL;
1332 struct amdgpu_bo *abo;
1335 if (!amdgpu_bo_is_amdgpu_bo(bo))
1338 abo = ttm_to_amdgpu_bo(bo);
1341 amdgpu_amdkfd_release_notify(abo);
1343 /* We only remove the fence if the resv has individualized. */
1344 WARN_ON_ONCE(bo->type == ttm_bo_type_kernel
1345 && bo->base.resv != &bo->base._resv);
1346 if (bo->base.resv == &bo->base._resv)
1347 amdgpu_amdkfd_remove_fence_on_pt_pd_bos(abo);
1349 if (!bo->resource || bo->resource->mem_type != TTM_PL_VRAM ||
1350 !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE) ||
1351 adev->in_suspend || drm_dev_is_unplugged(adev_to_drm(adev)))
1354 if (WARN_ON_ONCE(!dma_resv_trylock(bo->base.resv)))
1357 r = amdgpu_fill_buffer(abo, AMDGPU_POISON, bo->base.resv, &fence, true);
1359 amdgpu_bo_fence(abo, fence, false);
1360 dma_fence_put(fence);
1363 dma_resv_unlock(bo->base.resv);
1367 * amdgpu_bo_fault_reserve_notify - notification about a memory fault
1368 * @bo: pointer to a buffer object
1370 * Notifies the driver we are taking a fault on this BO and have reserved it,
1371 * also performs bookkeeping.
1372 * TTM driver callback for dealing with vm faults.
1375 * 0 for success or a negative error code on failure.
1377 vm_fault_t amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
1379 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
1380 struct ttm_operation_ctx ctx = { false, false };
1381 struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo);
1384 /* Remember that this BO was accessed by the CPU */
1385 abo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
1387 if (bo->resource->mem_type != TTM_PL_VRAM)
1390 if (amdgpu_bo_in_cpu_visible_vram(abo))
1393 /* Can't move a pinned BO to visible VRAM */
1394 if (abo->tbo.pin_count > 0)
1395 return VM_FAULT_SIGBUS;
1397 /* hurrah the memory is not visible ! */
1398 atomic64_inc(&adev->num_vram_cpu_page_faults);
1399 amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM |
1400 AMDGPU_GEM_DOMAIN_GTT);
1402 /* Avoid costly evictions; only set GTT as a busy placement */
1403 abo->placement.num_busy_placement = 1;
1404 abo->placement.busy_placement = &abo->placements[1];
1406 r = ttm_bo_validate(bo, &abo->placement, &ctx);
1407 if (unlikely(r == -EBUSY || r == -ERESTARTSYS))
1408 return VM_FAULT_NOPAGE;
1409 else if (unlikely(r))
1410 return VM_FAULT_SIGBUS;
1412 /* this should never happen */
1413 if (bo->resource->mem_type == TTM_PL_VRAM &&
1414 !amdgpu_bo_in_cpu_visible_vram(abo))
1415 return VM_FAULT_SIGBUS;
1417 ttm_bo_move_to_lru_tail_unlocked(bo);
1422 * amdgpu_bo_fence - add fence to buffer object
1424 * @bo: buffer object in question
1425 * @fence: fence to add
1426 * @shared: true if fence should be added shared
1429 void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence,
1432 struct dma_resv *resv = bo->tbo.base.resv;
1435 r = dma_resv_reserve_fences(resv, 1);
1437 /* As last resort on OOM we block for the fence */
1438 dma_fence_wait(fence, false);
1442 dma_resv_add_fence(resv, fence, shared ? DMA_RESV_USAGE_READ :
1443 DMA_RESV_USAGE_WRITE);
1447 * amdgpu_bo_sync_wait_resv - Wait for BO reservation fences
1449 * @adev: amdgpu device pointer
1450 * @resv: reservation object to sync to
1451 * @sync_mode: synchronization mode
1452 * @owner: fence owner
1453 * @intr: Whether the wait is interruptible
1455 * Extract the fences from the reservation object and waits for them to finish.
1458 * 0 on success, errno otherwise.
1460 int amdgpu_bo_sync_wait_resv(struct amdgpu_device *adev, struct dma_resv *resv,
1461 enum amdgpu_sync_mode sync_mode, void *owner,
1464 struct amdgpu_sync sync;
1467 amdgpu_sync_create(&sync);
1468 amdgpu_sync_resv(adev, &sync, resv, sync_mode, owner);
1469 r = amdgpu_sync_wait(&sync, intr);
1470 amdgpu_sync_free(&sync);
1475 * amdgpu_bo_sync_wait - Wrapper for amdgpu_bo_sync_wait_resv
1476 * @bo: buffer object to wait for
1477 * @owner: fence owner
1478 * @intr: Whether the wait is interruptible
1480 * Wrapper to wait for fences in a BO.
1482 * 0 on success, errno otherwise.
1484 int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr)
1486 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1488 return amdgpu_bo_sync_wait_resv(adev, bo->tbo.base.resv,
1489 AMDGPU_SYNC_NE_OWNER, owner, intr);
1493 * amdgpu_bo_gpu_offset - return GPU offset of bo
1494 * @bo: amdgpu object for which we query the offset
1496 * Note: object should either be pinned or reserved when calling this
1497 * function, it might be useful to add check for this for debugging.
1500 * current GPU offset of the object.
1502 u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
1504 WARN_ON_ONCE(bo->tbo.resource->mem_type == TTM_PL_SYSTEM);
1505 WARN_ON_ONCE(!dma_resv_is_locked(bo->tbo.base.resv) &&
1506 !bo->tbo.pin_count && bo->tbo.type != ttm_bo_type_kernel);
1507 WARN_ON_ONCE(bo->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET);
1508 WARN_ON_ONCE(bo->tbo.resource->mem_type == TTM_PL_VRAM &&
1509 !(bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS));
1511 return amdgpu_bo_gpu_offset_no_check(bo);
1515 * amdgpu_bo_gpu_offset_no_check - return GPU offset of bo
1516 * @bo: amdgpu object for which we query the offset
1519 * current GPU offset of the object without raising warnings.
1521 u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo)
1523 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
1526 offset = (bo->tbo.resource->start << PAGE_SHIFT) +
1527 amdgpu_ttm_domain_start(adev, bo->tbo.resource->mem_type);
1529 return amdgpu_gmc_sign_extend(offset);
1533 * amdgpu_bo_get_preferred_domain - get preferred domain
1534 * @adev: amdgpu device object
1535 * @domain: allowed :ref:`memory domains <amdgpu_memory_domains>`
1538 * Which of the allowed domains is preferred for allocating the BO.
1540 uint32_t amdgpu_bo_get_preferred_domain(struct amdgpu_device *adev,
1543 if ((domain == (AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT)) &&
1544 ((adev->asic_type == CHIP_CARRIZO) || (adev->asic_type == CHIP_STONEY))) {
1545 domain = AMDGPU_GEM_DOMAIN_VRAM;
1546 if (adev->gmc.real_vram_size <= AMDGPU_SG_THRESHOLD)
1547 domain = AMDGPU_GEM_DOMAIN_GTT;
1552 #if defined(CONFIG_DEBUG_FS)
1553 #define amdgpu_bo_print_flag(m, bo, flag) \
1555 if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
1556 seq_printf((m), " " #flag); \
1561 * amdgpu_bo_print_info - print BO info in debugfs file
1563 * @id: Index or Id of the BO
1564 * @bo: Requested BO for printing info
1567 * Print BO information in debugfs file
1570 * Size of the BO in bytes.
1572 u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m)
1574 struct dma_buf_attachment *attachment;
1575 struct dma_buf *dma_buf;
1576 unsigned int domain;
1577 const char *placement;
1578 unsigned int pin_count;
1581 domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type);
1583 case AMDGPU_GEM_DOMAIN_VRAM:
1586 case AMDGPU_GEM_DOMAIN_GTT:
1589 case AMDGPU_GEM_DOMAIN_CPU:
1595 size = amdgpu_bo_size(bo);
1596 seq_printf(m, "\t\t0x%08x: %12lld byte %s",
1597 id, size, placement);
1599 pin_count = READ_ONCE(bo->tbo.pin_count);
1601 seq_printf(m, " pin count %d", pin_count);
1603 dma_buf = READ_ONCE(bo->tbo.base.dma_buf);
1604 attachment = READ_ONCE(bo->tbo.base.import_attach);
1607 seq_printf(m, " imported from ino:%lu", file_inode(dma_buf->file)->i_ino);
1609 seq_printf(m, " exported as ino:%lu", file_inode(dma_buf->file)->i_ino);
1611 amdgpu_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
1612 amdgpu_bo_print_flag(m, bo, NO_CPU_ACCESS);
1613 amdgpu_bo_print_flag(m, bo, CPU_GTT_USWC);
1614 amdgpu_bo_print_flag(m, bo, VRAM_CLEARED);
1615 amdgpu_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
1616 amdgpu_bo_print_flag(m, bo, VM_ALWAYS_VALID);
1617 amdgpu_bo_print_flag(m, bo, EXPLICIT_SYNC);