diff options
| author | Huang Rui <ray.huang@amd.com> | 2018-06-01 14:41:04 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-06-13 13:45:21 -0500 |
| commit | 06b18f61ee78f8c69417c3a5e4f21ed678662315 (patch) | |
| tree | 03798c38b14c361d3f2bf2c9d8cbef50fc23bd5f /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | 387f49e5467244b7bcb4cad0946a5d0fcade5f92 (diff) | |
| download | linux-06b18f61ee78f8c69417c3a5e4f21ed678662315.tar.bz2 | |
drm/amdgpu: fix CG enabling hang with gfxoff enabled
After defer the execution of clockgating enabling, at that time, gfx already
enter into "off" state. Howerver, clockgating enabling will use MMIO to access
the gfx registers, then get the gfx hung.
So here we should move the gfx powergating and gfxoff enabling behavior at the
end of initialization behind clockgating.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 290e279abf0d..3317d1536f4f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1730,6 +1730,18 @@ static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev) } } } + + if (adev->powerplay.pp_feature & PP_GFXOFF_MASK) { + /* enable gfx powergating */ + amdgpu_device_ip_set_powergating_state(adev, + AMD_IP_BLOCK_TYPE_GFX, + AMD_PG_STATE_GATE); + /* enable gfxoff */ + amdgpu_device_ip_set_powergating_state(adev, + AMD_IP_BLOCK_TYPE_SMC, + AMD_PG_STATE_GATE); + } + return 0; } |