uvd failed to resume during suspend

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This diff:

diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c 
b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
index 71299c67c517..d4a6b97d20e7 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
@@ -566,7 +566,7 @@ static int uvd_v6_0_suspend(void *handle)
                 return r;

         /* Skip this for APU for now */
-       if (!(adev->flags & AMD_IS_APU))
+//     if (!(adev->flags & AMD_IS_APU))
                 r = amdgpu_uvd_suspend(adev);

         return r;
@@ -578,11 +578,11 @@ static int uvd_v6_0_resume(void *handle)
         struct amdgpu_device *adev = (struct amdgpu_device *)handle;

         /* Skip this for APU for now */
-       if (!(adev->flags & AMD_IS_APU)) {
+//     if (!(adev->flags & AMD_IS_APU)) {
                 r = amdgpu_uvd_resume(adev);
                 if (r)
                         return r;
-       }
+//     }
         return uvd_v6_0_hw_init(adev);
  }


Seems to fix it on my Carrizo.  I'm hesitant to propose this as a patch 
because I don't know why it was skipped in the first place.

Tom

On 23/10/17 09:54 AM, Tom St Denis wrote:
> On 23/10/17 09:27 AM, Tom St Denis wrote:
>> Doing a suspend during playback results in the uvd not resuming when 
>> waking up with drm-next as the kernel.
> 
> Trying with cg_mask=pg_mask=0 It hangs on decode start.  I've attached 
> the readout of the ring which looks normal.
> 
> Initially I thought maybe it's a PG related issue with suspend/resume 
> but since I can't reliably playback with PG/CG disabled I can't test 
> this theory.
> 
> Tom
> 
> 
> _______________________________________________
> amd-gfx mailing list
> amd-gfx at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
> 



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