From: Prike Liang Prike.Liang@amd.com
commit b2a7e9735ab2864330be9d00d7f38c961c28de5d upstream.
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 Prike.Liang@amd.com Tested-by: Mengbing Wang Mengbing.Wang@amd.com Tested-by: Paul Menzel pmenzel@molgen.mpg.de Acked-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2285,6 +2285,8 @@ static int amdgpu_device_ip_suspend_phas { 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)