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31 lines
972 B
Diff
31 lines
972 B
Diff
From 3edaa3875fbeb0b2effd77c62baabf2933efc6ef Mon Sep 17 00:00:00 2001
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From: Dom Cobley <popcornmix@gmail.com>
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Date: Fri, 13 Sep 2024 17:23:58 +0100
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Subject: [PATCH 1301/1350] dts: 2712: Reduce default cma usage on Pi5
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Significant cma shouldn't really be needed on Pi5 as the hardware
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blocks support iommu and can access system memory.
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We've migrated codec and camera support to system memory, and 3d
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has always (even on Pi4) used system memory.
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A large cma block causes issues with enabling NUMA on a low
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memory (2G) Pi5, as cma cannot span numa regions.
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Signed-off-by: Dom Cobley <popcornmix@gmail.com>
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---
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arch/arm/boot/dts/overlays/vc4-kms-v3d-pi5-overlay.dts | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi5-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi5-overlay.dts
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@@ -3,7 +3,7 @@
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#include "cma-overlay.dts"
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&frag0 {
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- size = <((320-4)*1024*1024)>;
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+ size = <(64*1024*1024)>;
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};
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/ {
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