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drm/amdgpu: Fix vram recover doesn't work after whole GPU reset (v2)

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v1: Vmbo->shadow is used to back vram bo up when vram lost. So that we
should set shadow as vmbo->shadow to recover vmbo->bo
v2: Modify if(vmbo->shadow) shadow = vmbo->shadow as if(!vmbo->shadow)
continue;

Fixes: e18aaea733 ("drm/amdgpu: move shadow_list to amdgpu_bo_vm")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Lin.Cao <lincao12@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Lin.Cao 2023-05-08 17:28:41 +08:00 committed by Alex Deucher
parent 720b47229a
commit 6c032c37ac
1 changed files with 5 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -4512,7 +4512,11 @@ static int amdgpu_device_recover_vram(struct amdgpu_device *adev)
dev_info(adev->dev, "recover vram bo from shadow start\n"); dev_info(adev->dev, "recover vram bo from shadow start\n");
mutex_lock(&adev->shadow_list_lock); mutex_lock(&adev->shadow_list_lock);
list_for_each_entry(vmbo, &adev->shadow_list, shadow_list) { list_for_each_entry(vmbo, &adev->shadow_list, shadow_list) {
shadow = &vmbo->bo; /* If vm is compute context or adev is APU, shadow will be NULL */
if (!vmbo->shadow)
continue;
shadow = vmbo->shadow;
/* No need to recover an evicted BO */ /* No need to recover an evicted BO */
if (shadow->tbo.resource->mem_type != TTM_PL_TT || if (shadow->tbo.resource->mem_type != TTM_PL_TT ||
shadow->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET || shadow->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET ||