diff options
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)) { |