Instead of attaching the eviction fence when a KFD BO is first mapped, attach it when it is allocated or imported. This in preparation to allow KFD BOs to be mapped using the render node API.
Signed-off-by: Felix Kuehling Felix.Kuehling@amd.com --- .../gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 62 +++++++++---------- 1 file changed, 31 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index d23fdebd2552..019e6e363fd2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -361,6 +361,23 @@ static int amdgpu_amdkfd_bo_validate(struct amdgpu_bo *bo, uint32_t domain, return ret; }
+static int amdgpu_amdkfd_bo_validate_and_fence(struct amdgpu_bo *bo, + uint32_t domain, + struct dma_fence *fence) +{ + int ret = amdgpu_bo_reserve(bo, false); + + if (ret) + return ret; + + ret = amdgpu_amdkfd_bo_validate(bo, domain, true); + if (!ret) + amdgpu_bo_fence(bo, fence, true); + amdgpu_bo_unreserve(bo); + + return ret; +} + static int amdgpu_amdkfd_validate_vm_bo(void *_unused, struct amdgpu_bo *bo) { return amdgpu_amdkfd_bo_validate(bo, bo->allowed_domains, false); @@ -1621,6 +1638,11 @@ int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu( } bo->allowed_domains = AMDGPU_GEM_DOMAIN_GTT; bo->preferred_domains = AMDGPU_GEM_DOMAIN_GTT; + } else { + ret = amdgpu_amdkfd_bo_validate_and_fence(bo, domain, + &avm->process_info->eviction_fence->base); + if (ret) + goto err_validate_bo; }
if (offset) @@ -1630,6 +1652,7 @@ int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
allocate_init_user_pages_failed: err_pin_bo: +err_validate_bo: remove_kgd_mem_from_kfd_bo_list(*mem, avm->process_info); drm_vma_node_revoke(&gobj->vma_node, drm_priv); err_node_allow: @@ -1699,10 +1722,6 @@ int amdgpu_amdkfd_gpuvm_free_memory_of_gpu( if (unlikely(ret)) return ret;
- /* The eviction fence should be removed by the last unmap. - * TODO: Log an error condition if the bo still has the eviction fence - * attached - */ amdgpu_amdkfd_remove_eviction_fence(mem->bo, process_info->eviction_fence); pr_debug("Release VA 0x%llx - 0x%llx\n", mem->va, @@ -1819,19 +1838,6 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( if (unlikely(ret)) goto out_unreserve;
- if (mem->mapped_to_gpu_memory == 0 && - !amdgpu_ttm_tt_get_usermm(bo->tbo.ttm)) { - /* Validate BO only once. The eviction fence gets added to BO - * the first time it is mapped. Validate will wait for all - * background evictions to complete. - */ - ret = amdgpu_amdkfd_bo_validate(bo, domain, true); - if (ret) { - pr_debug("Validate failed\n"); - goto out_unreserve; - } - } - list_for_each_entry(entry, &mem->attachments, list) { if (entry->bo_va->base.vm != avm || entry->is_mapped) continue; @@ -1858,10 +1864,6 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( mem->mapped_to_gpu_memory); }
- if (!amdgpu_ttm_tt_get_usermm(bo->tbo.ttm) && !bo->tbo.pin_count) - amdgpu_bo_fence(bo, - &avm->process_info->eviction_fence->base, - true); ret = unreserve_bo_and_vms(&ctx, false, false);
goto out; @@ -1878,7 +1880,6 @@ int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu( struct amdgpu_device *adev, struct kgd_mem *mem, void *drm_priv) { struct amdgpu_vm *avm = drm_priv_to_vm(drm_priv); - struct amdkfd_process_info *process_info = avm->process_info; unsigned long bo_size = mem->bo->tbo.base.size; struct kfd_mem_attachment *entry; struct bo_vm_reservation_context ctx; @@ -1919,15 +1920,6 @@ int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu( mem->mapped_to_gpu_memory); }
- /* If BO is unmapped from all VMs, unfence it. It can be evicted if - * required. - */ - if (mem->mapped_to_gpu_memory == 0 && - !amdgpu_ttm_tt_get_usermm(mem->bo->tbo.ttm) && - !mem->bo->tbo.pin_count) - amdgpu_amdkfd_remove_eviction_fence(mem->bo, - process_info->eviction_fence); - unreserve_out: unreserve_bo_and_vms(&ctx, false, false); out: @@ -2090,8 +2082,16 @@ int amdgpu_amdkfd_gpuvm_import_dmabuf(struct amdgpu_device *adev, amdgpu_sync_create(&(*mem)->sync); (*mem)->is_imported = true;
+ ret = amdgpu_amdkfd_bo_validate_and_fence(bo, (*mem)->domain, + &avm->process_info->eviction_fence->base); + if (ret) + goto err_remove_mem; + return 0;
+err_remove_mem: + remove_kgd_mem_from_kfd_bo_list(*mem, avm->process_info); + drm_vma_node_revoke(&obj->vma_node, drm_priv); err_free_mem: kfree(mem); err_put_obj: