Am 12.04.19 um 09:13 schrieb wentalou:
shadow was added into shadow_list by amdgpu_bo_create_shadow.
meanwhile, shadow->tbo.mem was not fully configured.
tbo.mem would be fully configured by amdgpu_vm_sdma_map_table until calling
amdgpu_vm_clear_bo.
If sriov TDR occurred between amdgpu_bo_create_shadow and
amdgpu_vm_sdma_map_table,
amdgpu_device_recover_vram would deal with shadow without tbo.mem.start.
Change-Id: I1a6a69587d6c689d0a357dd495ee44833d0f0790
Signed-off-by: Wentao Lou <[email protected]>
Reviewed-by: Christian König <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 3785195..be88d06 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3184,6 +3184,7 @@ static int amdgpu_device_recover_vram(struct
amdgpu_device *adev)
/* No need to recover an evicted BO */
if (shadow->tbo.mem.mem_type != TTM_PL_TT ||
+ shadow->tbo.mem.start == AMDGPU_BO_INVALID_OFFSET ||
shadow->parent->tbo.mem.mem_type != TTM_PL_VRAM)
continue;
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