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drm/amd/pp: Add gfx pg support in smu through set_powergating_by_smu 

gfx ip block can call set_powergating_by_smu to set gfx pg state if
necessary.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2018-06-14 13:07:19 +08:00 committed by Alex Deucher
parent b92c628712
commit 85f80cb3af
2 changed files with 21 additions and 14 deletions
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10
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
View File

@ -5606,14 +5606,12 @@ static int gfx_v8_0_late_init(void *handle)
static void gfx_v8_0_enable_gfx_static_mg_power_gating(struct amdgpu_device *adev,
bool enable)
{
if ((adev->asic_type == CHIP_POLARIS11) ||
if (((adev->asic_type == CHIP_POLARIS11) ||
(adev->asic_type == CHIP_POLARIS12) ||
(adev->asic_type == CHIP_VEGAM))
(adev->asic_type == CHIP_VEGAM)) &&
adev->powerplay.pp_funcs->set_powergating_by_smu)
/* Send msg to SMU via Powerplay */
amdgpu_device_ip_set_powergating_state(adev,
AMD_IP_BLOCK_TYPE_SMC,
enable ?
AMD_PG_STATE_GATE : AMD_PG_STATE_UNGATE);
amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, enable);
WREG32_FIELD(RLC_PG_CNTL, STATIC_PER_CU_PG_ENABLE, enable ? 1 : 0);
}

25
drivers/gpu/drm/amd/powerplay/amd_powerplay.c
View File

@ -236,14 +236,7 @@ static int pp_set_powergating_state(void *handle,
pr_err("gfx off control failed!\n");
}
if (hwmgr->hwmgr_func->powergate_gfx == NULL) {
pr_info("%s was not implemented.\n", __func__);
return 0;
}
/* Enable/disable GFX per cu powergating through SMU */
return hwmgr->hwmgr_func->powergate_gfx(hwmgr,
state == AMD_PG_STATE_GATE);
return 0;
}
@ -1184,6 +1177,21 @@ static int pp_dpm_powergate_mmhub(void *handle)
return hwmgr->hwmgr_func->powergate_mmhub(hwmgr);
}
static int pp_dpm_powergate_gfx(void *handle, bool gate)
{
struct pp_hwmgr *hwmgr = handle;
if (!hwmgr || !hwmgr->pm_en)
return 0;
if (hwmgr->hwmgr_func->powergate_gfx == NULL) {
pr_info("%s was not implemented.\n", __func__);
return 0;
}
return hwmgr->hwmgr_func->powergate_gfx(hwmgr, gate);
}
static int pp_set_powergating_by_smu(void *handle,
uint32_t block_type, bool gate)
{
@ -1201,6 +1209,7 @@ static int pp_set_powergating_by_smu(void *handle,
pp_dpm_powergate_mmhub(handle);
break;
case AMD_IP_BLOCK_TYPE_GFX:
ret = pp_dpm_powergate_gfx(handle, gate);
break;
default:
break;