diff options
| author | Le Ma <le.ma@amd.com> | 2019-10-25 16:50:53 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-10-30 11:06:51 -0400 |
| commit | 8baaadba735565056788559933ec25cf3bc49785 (patch) | |
| tree | 2ee0d26fbaa4b6fb8c69ab036619ff4f55b97e31 /drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | |
| parent | b4def3744ba811f5abc53750c71c52d71a2032b1 (diff) | |
| download | linux-8baaadba735565056788559933ec25cf3bc49785.tar.bz2 | |
drm/amdgpu: clear UVD VCPU buffer when err_event_athub generated
The err_event_athub error will mess up the buffer and cause UVD resume hang.
Signed-off-by: Le Ma <le.ma@amd.com>
Reviewed-by: Hawking Zhang <hawking.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c index b2c364b8695f..b4dd89af6f09 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c @@ -39,6 +39,8 @@ #include "cikd.h" #include "uvd/uvd_4_2_d.h" +#include "amdgpu_ras.h" + /* 1 second timeout */ #define UVD_IDLE_TIMEOUT msecs_to_jiffies(1000) @@ -372,7 +374,13 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev) if (!adev->uvd.inst[j].saved_bo) return -ENOMEM; - memcpy_fromio(adev->uvd.inst[j].saved_bo, ptr, size); + /* re-write 0 since err_event_athub will corrupt VCPU buffer */ + if (amdgpu_ras_intr_triggered()) { + DRM_WARN("UVD VCPU state may lost due to RAS ERREVENT_ATHUB_INTERRUPT\n"); + memset(adev->uvd.inst[j].saved_bo, 0, size); + } else { + memcpy_fromio(adev->uvd.inst[j].saved_bo, ptr, size); + } } return 0; } |