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From 587d2958f74bb968a544886953c86fc1403955e8 Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Mon, 6 May 2019 16:45:13 +0800
Subject: [PATCH 1943/2940] drm/amd/powerplay: avoid repeat AVFS
enablement/disablement
No need to enable or disable AVFS if it's already in wanted
state.
Change-Id: I862c0c3d642e6a0dc7bb34e04c5a59f17b6b8deb
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index 383d1f503181..ceeb8484cf13 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -2364,6 +2364,10 @@ static int vega10_avfs_enable(struct pp_hwmgr *hwmgr, bool enable)
struct vega10_hwmgr *data = hwmgr->backend;
if (data->smu_features[GNLD_AVFS].supported) {
+ /* Already enabled or disabled */
+ if (!(enable ^ data->smu_features[GNLD_AVFS].enabled))
+ return 0;
+
if (enable) {
PP_ASSERT_WITH_CODE(!vega10_enable_smc_features(hwmgr,
true,
--
2.17.1
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