From: Huang Rui <ray.huang@amd.com>
Date: Fri, 2 Mar 2018 15:18:54 +0800
Subject: drm/amd/powerplay: enable/disable gfxoff through smu
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Git-commit: 775b0c11e27fce7d204d2911220fd7eebcc074d0
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -222,10 +222,19 @@ static int pp_set_powergating_state(void
{
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;