From: "David (Ming Qiang) Wu" David.Wu3@amd.com
[ Upstream commit fa1f1cc09d588a90c8ce3f507c47df257461d148 ]
err_event_athub will corrupt VCPU buffer and not good to be restored in amdgpu_vcn_resume() and in this case the VCPU buffer needs to be cleared for VCN firmware to work properly.
Acked-by: Leo Liu leo.liu@amd.com Signed-off-by: David (Ming Qiang) Wu David.Wu3@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index ae455aab5d29d..7e54abca45206 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -292,8 +292,15 @@ int amdgpu_vcn_suspend(struct amdgpu_device *adev) void *ptr; int i, idx;
+ bool in_ras_intr = amdgpu_ras_intr_triggered(); + cancel_delayed_work_sync(&adev->vcn.idle_work);
+ /* err_event_athub will corrupt VCPU buffer, so we need to + * restore fw data and clear buffer in amdgpu_vcn_resume() */ + if (in_ras_intr) + return 0; + for (i = 0; i < adev->vcn.num_vcn_inst; ++i) { if (adev->vcn.harvest_config & (1 << i)) continue;