Re: [PATCH v2] drm/amd/display: only fill dirty rectangles when PSR is enabled

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On 11/9/22 13:20, Hamza Mahfooz wrote:
Currently, we are calling fill_dc_dirty_rects() even if PSR isn't
supported by the relevant link in amdgpu_dm_commit_planes(), this is
undesirable especially because when drm.debug is enabled we are printing
messages in fill_dc_dirty_rects() that are only useful for debugging PSR
(and confusing otherwise). So, we can instead limit the filling of dirty
rectangles to only when PSR is enabled.

Signed-off-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>

Reviewed-by: Leo Li <sunpeng.li@xxxxxxx>
Thanks

---
v2: give a more concrete reason.
---
  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 ++++---
  1 file changed, 4 insertions(+), 3 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 66eb16fbe09f..956a6e494709 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7697,9 +7697,10 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
  		bundle->surface_updates[planes_count].plane_info =
  			&bundle->plane_infos[planes_count];
- fill_dc_dirty_rects(plane, old_plane_state, new_plane_state,
-				    new_crtc_state,
-				    &bundle->flip_addrs[planes_count]);
+		if (acrtc_state->stream->link->psr_settings.psr_feature_enabled)
+			fill_dc_dirty_rects(plane, old_plane_state,
+					    new_plane_state, new_crtc_state,
+					    &bundle->flip_addrs[planes_count]);
/*
  		 * Only allow immediate flips for fast updates that don't



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