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authorRex Zhu <[email protected]>2018-07-27 09:00:02 +0000
committerAlex Deucher <[email protected]>2018-08-27 16:09:53 +0000
commit3fded222f4bf7f4c56ef4854872a39a4de08f7a8 (patch)
tree44d0835e37d14d7227257ab58a5fa9e449091a85 /drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
parentdrm/amdgpu: Ctrl gfx off via amdgpu_gfx_off_ctrl (diff)
downloadkernel-3fded222f4bf7f4c56ef4854872a39a4de08f7a8.tar.gz
kernel-3fded222f4bf7f4c56ef4854872a39a4de08f7a8.zip
drm/amdgpu: Disable gfx off if VCN is busy
this patch is a workaround for the gpu hang at video begin/end time if gfx off is enabled. Reviewed-by: Hawking Zhang <[email protected]> Signed-off-by: Rex Zhu <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index fd654a4406db..76e59a6e8311 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -217,6 +217,7 @@ static void amdgpu_vcn_idle_work_handler(struct work_struct *work)
fences += amdgpu_fence_count_emitted(&adev->vcn.ring_jpeg);
if (fences == 0) {
+ amdgpu_gfx_off_ctrl(adev, true);
if (adev->pm.dpm_enabled)
amdgpu_dpm_enable_uvd(adev, false);
else
@@ -233,6 +234,7 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
if (set_clocks) {
+ amdgpu_gfx_off_ctrl(adev, false);
if (adev->pm.dpm_enabled)
amdgpu_dpm_enable_uvd(adev, true);
else