From 5af50b0b1c200d31f6798a9ddd18aa706c868306 Mon Sep 17 00:00:00 2001 From: Bindu Ramamurthy Date: Tue, 16 Mar 2021 17:08:47 -0400 Subject: [PATCH] drm/amd/display: Allow idle optimization based on vblank. [Why] idle optimization was being disabled after commit. [How] check vblank count for display off and enable idle optimization based on this count. Also,check added to ensure vblank count does not decrement, when count reaches 0. Reviewed-by: Kenneth Feng Signed-off-by: Bindu Ramamurthy Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 81565e73c5c1..01aa9c938b34 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1013,7 +1013,7 @@ static void event_mall_stutter(struct work_struct *work) if (vblank_work->enable) dm->active_vblank_irq_count++; - else + else if(dm->active_vblank_irq_count) dm->active_vblank_irq_count--; dc_allow_idle_optimizations(dm->dc, dm->active_vblank_irq_count == 0); @@ -8678,9 +8678,14 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) dm_enable_per_frame_crtc_master_sync(dc_state); mutex_lock(&dm->dc_lock); WARN_ON(!dc_commit_state(dm->dc, dc_state)); +#if defined(CONFIG_DRM_AMD_DC_DCN) + /* Allow idle optimization when vblank count is 0 for display off */ + if (dm->active_vblank_irq_count == 0) + dc_allow_idle_optimizations(dm->dc,true); +#endif mutex_unlock(&dm->dc_lock); } - + for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); -- 2.39.5