From 4fac4fcf4500bce515b0f32195e7bb86aa0246c6 Mon Sep 17 00:00:00 2001 From: Lang Yu Date: Tue, 31 May 2022 09:19:43 +0800 Subject: drm/amdkfd: add pinned BOs to kfd_bo_list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The kfd_bo_list is used to restore process BOs after evictions. As page tables could be destroyed during evictions, we should also update pinned BOs' page tables during restoring to make sure they are valid. So for pinned BOs, 1, Validate them and update their page tables. 2, Don't add eviction fence for them. v2: - Don't handle pinned ones specially in BO validation.(Felix) Signed-off-by: Lang Yu Acked-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index 67abf8dcd30a..6b6d46e29e6e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -1918,9 +1918,6 @@ int amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel(struct amdgpu_device *adev, return -EINVAL; } - /* delete kgd_mem from kfd_bo_list to avoid re-validating - * this BO in BO's restoring after eviction. - */ mutex_lock(&mem->process_info->lock); ret = amdgpu_bo_reserve(bo, true); @@ -1943,7 +1940,6 @@ int amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel(struct amdgpu_device *adev, amdgpu_amdkfd_remove_eviction_fence( bo, mem->process_info->eviction_fence); - list_del_init(&mem->validate_list.head); if (size) *size = amdgpu_bo_size(bo); @@ -2512,12 +2508,15 @@ int amdgpu_amdkfd_gpuvm_restore_process_bos(void *info, struct dma_fence **ef) process_info->eviction_fence = new_fence; *ef = dma_fence_get(&new_fence->base); - /* Attach new eviction fence to all BOs */ + /* Attach new eviction fence to all BOs except pinned ones */ list_for_each_entry(mem, &process_info->kfd_bo_list, - validate_list.head) + validate_list.head) { + if (mem->bo->tbo.pin_count) + continue; + amdgpu_bo_fence(mem->bo, &process_info->eviction_fence->base, true); - + } /* Attach eviction fence to PD / PT BOs */ list_for_each_entry(peer_vm, &process_info->vm_list_head, vm_list_node) { -- cgit v1.2.3