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drm/amd/display: Allow idle optimization based on vblank.

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[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 <kenneth.feng@amd.com>
Signed-off-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bindu Ramamurthy
2021-03-16 17:08:47 -04:00
committed by Alex Deucher
parent 5bf314abfb
commit 5af50b0b1c
1 changed files with 7 additions and 2 deletions
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9
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -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);