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| author | Rex Zhu <Rex.Zhu@amd.com> | 2016-12-08 10:58:15 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-01-27 11:12:46 -0500 |
| commit | f6f534e2af5b518f522b5df244accf945a6207ec (patch) | |
| tree | fff9a1be97b6e3754f63d5705882ae3a6a94b292 /drivers/gpu/drm/amd/amdgpu/vi.c | |
| parent | e8a95b274d2f1a46dda12fa8e0cd2806df791701 (diff) | |
| download | op-kernel-dev-f6f534e2af5b518f522b5df244accf945a6207ec.zip op-kernel-dev-f6f534e2af5b518f522b5df244accf945a6207ec.tar.gz | |
drm/amdgpu: add drm light sleep support for Vi
v2: fix copy error.
Signed-off-by: Rex Zhu <Rex.Zhu@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 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index bb6eacb..fbb7d8b 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -1177,6 +1177,23 @@ static void vi_update_hdp_light_sleep(struct amdgpu_device *adev, WREG32(mmHDP_MEM_POWER_LS, data); } +static void vi_update_drm_light_sleep(struct amdgpu_device *adev, + bool enable) +{ + uint32_t temp, data; + + temp = data = RREG32(0x157a); + + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_DRM_LS)) + data |= 1; + else + data &= ~1; + + if (temp != data) + WREG32(0x157a, data); +} + + static void vi_update_rom_medium_grain_clock_gating(struct amdgpu_device *adev, bool enable) { @@ -1337,6 +1354,8 @@ static int vi_common_set_clockgating_state(void *handle, state == AMD_CG_STATE_GATE ? true : false); vi_update_hdp_light_sleep(adev, state == AMD_CG_STATE_GATE ? true : false); + vi_update_drm_light_sleep(adev, + state == AMD_CG_STATE_GATE ? true : false); break; case CHIP_TONGA: case CHIP_POLARIS10: |
