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From 064d9810afc54c7b41e3bc084f95a0e2bbce3d9e Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Fri, 2 Mar 2018 15:18:54 +0800
Subject: [PATCH 4043/4131] drm/amd/powerplay: enable/disable gfxoff through
smu
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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>
---
drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 7172ad7..2588d02 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -187,10 +187,19 @@ 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;
--
2.7.4
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