From ced1ba9761693ec310c33edf47c63b062a09be4a Mon Sep 17 00:00:00 2001 From: Prike Liang Date: Mon, 13 Apr 2020 21:41:14 +0800 Subject: [PATCH] drm/amdgpu: fix the hw hang during perform system reboot and reset The system reboot failed as some IP blocks enter power gate before perform hw resource destory. Meanwhile use unify interface to set device CGPG to ungate state can simplify the amdgpu poweroff or reset ungate guard. Fixes: 487eca11a321ef ("drm/amdgpu: fix gfx hang during suspend with video playback (v2)") Signed-off-by: Prike Liang Tested-by: Mengbing Wang Tested-by: Paul Menzel Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 9f1377c16090..706f93d26136 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2427,6 +2427,8 @@ static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev) { int i, r; + amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE); + amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE); for (i = adev->num_ip_blocks - 1; i >= 0; i--) { if (!adev->ip_blocks[i].status.valid) -- 2.11.0