From bcd6eab837fc9db67292c1d071ce2d96bb9689be Mon Sep 17 00:00:00 2001 From: Evan Quan Date: Fri, 8 Sep 2017 13:09:50 +0800 Subject: drm/amdgpu: stop psp ring on suspend MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Otherwise, the ring will fail to create on next resume. Signed-off-by: Evan Quan Reviewed-by: Junwei Zhang Acked-by: Christian König Reviewed-by: Huang Rui Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index abd20819ba6b..0d530524ab21 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -455,6 +455,16 @@ static int psp_hw_fini(void *handle) static int psp_suspend(void *handle) { + int ret; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct psp_context *psp = &adev->psp; + + ret = psp_ring_stop(psp, PSP_RING_TYPE__KM); + if (ret) { + DRM_ERROR("PSP ring stop failed\n"); + return ret; + } + return 0; } -- cgit v1.2.3