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drm/amdgpu: add interface to enable/disable mmhub pg on raven

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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>
This commit is contained in:
Hawking Zhang 2017-06-16 21:31:43 +08:00 committed by Alex Deucher
parent 2fcd43cef6
commit a95890b45f
2 changed files with 50 additions and 0 deletions
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48
drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
View file

@ -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)) {

2
drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.h
View file

@ -33,6 +33,8 @@ int mmhub_v1_0_set_clockgating(struct amdgpu_device *adev,
enum amd_clockgating_state state);
void mmhub_v1_0_get_clockgating(struct amdgpu_device *adev, u32 *flags);
void mmhub_v1_0_initialize_power_gating(struct amdgpu_device *adev);
void mmhub_v1_0_update_power_gating(struct amdgpu_device *adev,
bool enable);
extern const struct amd_ip_funcs mmhub_v1_0_ip_funcs;
extern const struct amdgpu_ip_block_version mmhub_v1_0_ip_block;