From 587d2958f74bb968a544886953c86fc1403955e8 Mon Sep 17 00:00:00 2001 From: Evan Quan 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 Acked-by: Alex Deucher --- 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