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drm/amd/powerplay: enable/disable gfxoff through smu 

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Huang Rui 2018-03-02 15:18:54 +08:00 committed by Alex Deucher
parent 9c82214160
commit 775b0c11e2
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/amd/powerplay/amd_powerplay.c
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@ -222,10 +222,19 @@ static int pp_set_powergating_state(void *handle,
{
struct amdgpu_device *adev = handle;
struct pp_hwmgr *hwmgr = adev->powerplay.pp_handle;
int ret;
if (!hwmgr || !hwmgr->pm_en)
return 0;
if (hwmgr->hwmgr_func->gfx_off_control) {
/* Enable/disable GFX off through SMU */
ret = hwmgr->hwmgr_func->gfx_off_control(hwmgr,
state == AMD_PG_STATE_GATE);
if (ret)
pr_err("gfx off control failed!\n");
}
if (hwmgr->hwmgr_func->enable_per_cu_power_gating == NULL) {
pr_info("%s was not implemented.\n", __func__);
return 0;