From 3fded222f4bf7f4c56ef4854872a39a4de08f7a8 Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Fri, 27 Jul 2018 17:00:02 +0800 Subject: [PATCH] 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 Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 2 ++ 1 file changed, 2 insertions(+) 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