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| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2017-06-16 21:31:43 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-06-29 12:43:45 -0400 |
| commit | a95890b45fcf982b34a0357793499ed44f15ddd9 (patch) | |
| tree | a4b41170775ed0d9c3df32cd2cc65657791c4337 /drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | |
| parent | 2fcd43cef6e28ca546376af07c0454dc72b593f9 (diff) | |
| download | lwn-a95890b45fcf982b34a0357793499ed44f15ddd9.tar.gz lwn-a95890b45fcf982b34a0357793499ed44f15ddd9.zip | |
drm/amdgpu: add interface to enable/disable mmhub pg on raven
Signed-off-by: Hawking Zhang <Hawking.Zhang@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/mmhub_v1_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c index 8447ce74304f..c885c0d9344b 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c @@ -414,6 +414,54 @@ void mmhub_v1_0_initialize_power_gating(struct amdgpu_device *adev) WREG32_SOC15(MMHUB, 0, mmPCTL1_MISC, pctl1_misc); } +void mmhub_v1_0_update_power_gating(struct amdgpu_device *adev, + bool enable) +{ + uint32_t pctl0_reng_execute = 0; + uint32_t pctl1_reng_execute = 0; + + if (amdgpu_sriov_vf(adev)) + return; + + pctl0_reng_execute = RREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_EXECUTE); + pctl1_reng_execute = RREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_EXECUTE); + + if (enable) { + pctl0_reng_execute = REG_SET_FIELD(pctl0_reng_execute, + PCTL0_RENG_EXECUTE, + RENG_EXECUTE_ON_PWR_UP, 1); + pctl0_reng_execute = REG_SET_FIELD(pctl0_reng_execute, + PCTL0_RENG_EXECUTE, + RENG_EXECUTE_ON_REG_UPDATE, 1); + WREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_EXECUTE, pctl0_reng_execute); + + pctl1_reng_execute = REG_SET_FIELD(pctl1_reng_execute, + PCTL1_RENG_EXECUTE, + RENG_EXECUTE_ON_PWR_UP, 1); + pctl1_reng_execute = REG_SET_FIELD(pctl1_reng_execute, + PCTL1_RENG_EXECUTE, + RENG_EXECUTE_ON_REG_UPDATE, 1); + WREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_EXECUTE, pctl1_reng_execute); + + } else { + pctl0_reng_execute = REG_SET_FIELD(pctl0_reng_execute, + PCTL0_RENG_EXECUTE, + RENG_EXECUTE_ON_PWR_UP, 0); + pctl0_reng_execute = REG_SET_FIELD(pctl0_reng_execute, + PCTL0_RENG_EXECUTE, + RENG_EXECUTE_ON_REG_UPDATE, 0); + WREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_EXECUTE, pctl0_reng_execute); + + pctl1_reng_execute = REG_SET_FIELD(pctl1_reng_execute, + PCTL1_RENG_EXECUTE, + RENG_EXECUTE_ON_PWR_UP, 0); + pctl1_reng_execute = REG_SET_FIELD(pctl1_reng_execute, + PCTL1_RENG_EXECUTE, + RENG_EXECUTE_ON_REG_UPDATE, 0); + WREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_EXECUTE, pctl1_reng_execute); + } +} + int mmhub_v1_0_gart_enable(struct amdgpu_device *adev) { if (amdgpu_sriov_vf(adev)) { |