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| author |   wentalou <Wentao.Lou@amd.com> | 2019-04-12 15:01:14 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-04-12 11:23:49 -0500 |
| commit | b575f10dbd6f84c2c8744ff1f486bfae1e4f6f38 (patch) | |
| tree | c3e51882cb2c7ca80ffb577b6a02173f9f413757 /drivers/gpu | |
| parent | drm/amd/display: extending AUX SW Timeout (diff) | |
| download | linux-dev-b575f10dbd6f84c2c8744ff1f486bfae1e4f6f38.tar.xz linux-dev-b575f10dbd6f84c2c8744ff1f486bfae1e4f6f38.zip | |
drm/amdgpu: shadow in shadow_list without tbo.mem.start cause page fault in sriov TDR
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.
Signed-off-by: Wentao Lou <Wentao.Lou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 5d8b30fd4534..79fb302fb954 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3165,6 +3165,7 @@ 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; |