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....@amd.com>
Reviewed-by: Leo Liu <leo....@amd.com>
Reviewed-by: Christian K├Ânig <christian.koe...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index 9d037cb..f3c459b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -299,12 +299,15 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 
        cancel_delayed_work_sync(&adev->uvd.idle_work);
 
-       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;
+       }
 
        size = amdgpu_bo_size(adev->uvd.vcpu_bo);
        ptr = adev->uvd.cpu_addr;
-- 
2.7.4

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Reply via email to