Commit 5af50b0b authored by Bindu Ramamurthy's avatar Bindu Ramamurthy Committed by Alex Deucher
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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: default avatarKenneth Feng <kenneth.feng@amd.com>
Signed-off-by: default avatarBindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 5bf314ab

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+7 −2
Original line number Diff line number Diff line
@@ -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);
@@ -8678,6 +8678,11 @@ 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);

	}