diff options
| author | Monk Liu <Monk.Liu@amd.com> | 2017-01-23 05:49:33 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-03-30 06:52:40 +0300 |
| commit | ce137c04ff4bb7862a952e32d5200c301e620601 (patch) | |
| tree | d8901a2063274fded4040c711756556e93581637 /drivers/gpu/drm/amd/amdgpu/vi.c | |
| parent | cbabc8b343953e7bc6d70b5a22aaebbd73ae9934 (diff) | |
| download | linux-ce137c04ff4bb7862a952e32d5200c301e620601.tar.xz | |
drm/amdgpu:cg & pg shouldn't active on VF device
CG & PG function changes engine clock/gating, which is
not appropriate for VF device, because one vf doesn't know
the whole picture of engine's overall workload.
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/vi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index 4a785d6acfb9..7fa314c217c9 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -1391,6 +1391,9 @@ static int vi_common_set_clockgating_state(void *handle, { struct amdgpu_device *adev = (struct amdgpu_device *)handle; + if (amdgpu_sriov_vf(adev)) + return 0; + switch (adev->asic_type) { case CHIP_FIJI: vi_update_bif_medium_grain_light_sleep(adev, @@ -1435,6 +1438,9 @@ static void vi_common_get_clockgating_state(void *handle, u32 *flags) struct amdgpu_device *adev = (struct amdgpu_device *)handle; int data; + if (amdgpu_sriov_vf(adev)) + *flags = 0; + /* AMD_CG_SUPPORT_BIF_LS */ data = RREG32_PCIE(ixPCIE_CNTL2); if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK) |