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drm/amdgpu/powerplay/smu7: enable mclk switching if monitors are synced

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If DC has synced the displays, we can enable mclk switching to
save power.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2019-08-08 00:47:49 -05:00
parent 951e15c2b5
commit bb6897f1c5
1 changed files with 4 additions and 3 deletions

7
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
View File

@ -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;