From 15024daf4e5b30888b8b950e3e5988f0bf39ee08 Mon Sep 17 00:00:00 2001 From: Philip Yang Date: Mon, 30 Nov 2020 16:02:00 -0500 Subject: [PATCH] drm/amdkfd: keep BOs in system memory if restore failed If vram is used up, display allocate vram evict the KFD BOs to system memory. KFD schedule restore work to restore BOs back to vram. If display BOs are pinned in vram, KFD restore work will keep retry, and may never success. If restore BO back to vram failed, keep the BO in system memory to prevent endless retry restore, and GPU mapping will update to system memory. Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index 1755386..7791d074 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -2043,6 +2043,8 @@ int amdgpu_amdkfd_gpuvm_restore_process_bos(void *info, struct dma_fence **ef) int ret = 0, i; struct list_head duplicate_save; struct amdgpu_sync sync_obj; + unsigned long failed_size = 0; + unsigned long total_size = 0; INIT_LIST_HEAD(&duplicate_save); INIT_LIST_HEAD(&ctx.list); @@ -2099,10 +2101,18 @@ int amdgpu_amdkfd_gpuvm_restore_process_bos(void *info, struct dma_fence **ef) uint32_t domain = mem->domain; struct kfd_bo_va_list *bo_va_entry; + total_size += amdgpu_bo_size(bo); + ret = amdgpu_amdkfd_bo_validate(bo, domain, false); if (ret) { - pr_debug("Memory eviction: Validate BOs failed. Try again\n"); - goto validate_map_fail; + pr_debug("Memory eviction: Validate BOs failed\n"); + failed_size += amdgpu_bo_size(bo); + ret = amdgpu_amdkfd_bo_validate(bo, + AMDGPU_GEM_DOMAIN_GTT, false); + if (ret) { + pr_debug("Memory eviction: Try again\n"); + goto validate_map_fail; + } } ret = amdgpu_sync_fence(&sync_obj, bo->tbo.moving); if (ret) { @@ -2122,6 +2132,9 @@ int amdgpu_amdkfd_gpuvm_restore_process_bos(void *info, struct dma_fence **ef) } } + if (failed_size) + pr_debug("0x%lx/0x%lx in system\n", failed_size, total_size); + /* Update page directories */ ret = process_update_pds(process_info, &sync_obj); if (ret) { -- 2.7.4