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31 lines
1 KiB
Diff
31 lines
1 KiB
Diff
From e259aaf9e4aba7232016683bd2084481ee191d62 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Fri, 21 Oct 2022 14:27:45 +0100
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Subject: [PATCH 659/697] drm/vc4: Increase number of overlay planes from 16 to
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48
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The HVS can accept an arbitrary number of planes, provided
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that the overall pixel read load is within limits, and
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the display list can fit into the dlist memory.
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Now that DRM will support 64 planes per device, increase
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the number of overlay planes from 16 to 48 so that the
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dlist complexity can be increased (eg 4x4 video wall on
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each of 3 displays).
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/vc4/vc4_plane.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/gpu/drm/vc4/vc4_plane.c
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+++ b/drivers/gpu/drm/vc4/vc4_plane.c
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@@ -2610,7 +2610,7 @@ struct drm_plane *vc4_plane_init(struct
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return plane;
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}
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-#define VC4_NUM_OVERLAY_PLANES 16
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+#define VC4_NUM_OVERLAY_PLANES 48
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int vc4_plane_create_additional_planes(struct drm_device *drm)
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{
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