drm/vc4: Increase number of overlay planes from 16 to 48

The HVS can accept an arbitrary number of planes, provided that the overall pixel read load is within limits, and the display list can fit into the dlist memory. Now that DRM will support 64 planes per device, increase the number of overlay planes from 16 to 48 so that the dlist complexity can be increased (eg 4x4 video wall on each of 3 displays). Signed-off-by: Dave Stevenson <[email protected]>
raspberrypi · Aug 20, 2024 · acf67a5 · acf67a5
1 parent db0bc27
commit acf67a5
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
@@ -362,7 +362,7 @@ static int __drm_connector_init(struct drm_device *dev,
 	drm_object_attach_property(&connector->base,
 				   config->non_desktop_property,
 				   (connector_type != DRM_MODE_CONNECTOR_VIRTUAL &&
-				   connector_type != DRM_MODE_CONNECTOR_WRITEBACK) ? 0 : 1;
+				   connector_type != DRM_MODE_CONNECTOR_WRITEBACK) ? 0 : 1);
 	drm_object_attach_property(&connector->base,
 				   config->tile_property,
 				   0);

diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -2450,7 +2450,7 @@ struct drm_plane *vc4_plane_init(struct drm_device *dev,
 	return plane;
 }
 
-#define VC4_NUM_OVERLAY_PLANES	16
+#define VC4_NUM_OVERLAY_PLANES	48
 
 int vc4_plane_create_additional_planes(struct drm_device *drm)
 {