From 53436e69654eed1b6cd14b27761ef312bc674c53 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 8 Aug 2019 00:47:49 -0500 Subject: [PATCH 1/2] drm/amdgpu/powerplay/smu7: enable mclk switching if monitors are synced If DC has synced the displays, we can enable mclk switching to save power. Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c index 487aeee1cf8a..b107a78da714 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c @@ -2956,9 +2956,10 @@ static int smu7_apply_state_adjust_rules(struct pp_hwmgr *hwmgr, if (hwmgr->display_config->num_display == 0) disable_mclk_switching = false; else - disable_mclk_switching = ((1 < hwmgr->display_config->num_display) || - disable_mclk_switching_for_frame_lock || - smu7_vblank_too_short(hwmgr, hwmgr->display_config->min_vblank_time)); + disable_mclk_switching = ((1 < hwmgr->display_config->num_display) && + !hwmgr->display_config->multi_monitor_in_sync) || + disable_mclk_switching_for_frame_lock || + smu7_vblank_too_short(hwmgr, hwmgr->display_config->min_vblank_time); sclk = smu7_ps->performance_levels[0].engine_clock; mclk = smu7_ps->performance_levels[0].memory_clock; -- 2.20.1