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drm/amdgpu:Always save uvd vcpu_bo in VM Mode 

commit f8bee6135e upstream.

When UVD is in VM mode, there is not uvd handle exchanged,
uvd.handles are always 0. So vcpu_bo always need save,
Otherwise amdgpu driver will fail during suspend/resume.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105021
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
James Zhu 2018-03-06 14:52:35 -05:00 committed by Greg Kroah-Hartman
parent 783fd8eb86
commit 6c6f1e60b5
1 changed files with 8 additions and 5 deletions
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13
drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
View File

@ -293,12 +293,15 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
if (adev->uvd.vcpu_bo == NULL)
return 0;
for (i = 0; i < adev->uvd.max_handles; ++i)
if (atomic_read(&adev->uvd.handles[i]))
break;
/* only valid for physical mode */
if (adev->asic_type < CHIP_POLARIS10) {
for (i = 0; i < adev->uvd.max_handles; ++i)
if (atomic_read(&adev->uvd.handles[i]))
break;
if (i == adev->uvd.max_handles)
return 0;
if (i == adev->uvd.max_handles)
return 0;
}
cancel_delayed_work_sync(&adev->uvd.idle_work);