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3fc661a98c
As usual these patches were extracted from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also alphabetically order sound-soc kernel packages. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
76 lines
2.0 KiB
Diff
76 lines
2.0 KiB
Diff
From 937dd48dd631d45dbee39853dcb1cd98220bb1e5 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Sun, 24 Apr 2016 17:28:15 +0100
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Subject: [PATCH 305/381] drm/vc4: Add DT parameters to control CMA usage
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Example: dtoverlay=vc4-kms-v3d,cma-128
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See: https://github.com/raspberrypi/linux/pull/1431
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/overlays/README | 8 +++--
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arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts | 36 ++++++++++++++++++++++
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2 files changed, 42 insertions(+), 2 deletions(-)
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -1023,8 +1023,12 @@ Name: vc4-kms-v3d
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Info: Enable Eric Anholt's DRM VC4 HDMI/HVS/V3D driver. Running startx or
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booting to GUI while this overlay is in use will cause interesting
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lockups.
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-Load: dtoverlay=vc4-kms-v3d
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-Params: <None>
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+Load: dtoverlay=vc4-kms-v3d,<param>
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+Params: cma-256 CMA is 256MB, 256MB-aligned (needs 1GB)
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+ cma-192 CMA is 192MB, 256MB-aligned (needs 1GB)
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+ cma-128 CMA is 128MB, 128MB-aligned
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+ cma-96 CMA is 96MB, 128MB-aligned
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+ cma-64 CMA is 64MB, 64MB-aligned
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Name: vga666
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--- a/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
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@@ -94,4 +94,40 @@
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bootargs = "cma=256M@256M";
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};
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};
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+
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+ fragment@5 {
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+ target-path = "/chosen";
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+ __dormant__ {
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+ bootargs = "cma=192M@256M";
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+ };
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+ };
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+
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+ fragment@6 {
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+ target-path = "/chosen";
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+ __dormant__ {
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+ bootargs = "cma=128M@128M";
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+ };
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+ };
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+
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+ fragment@7 {
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+ target-path = "/chosen";
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+ __dormant__ {
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+ bootargs = "cma=96M@128M";
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+ };
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+ };
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+
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+ fragment@8 {
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+ target-path = "/chosen";
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+ __dormant__ {
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+ bootargs = "cma=64M@64M";
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+ };
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+ };
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+
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+ __overrides__ {
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+ cma-256 = <0>,"+4-5-6-7-8";
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+ cma-192 = <0>,"-4+5-6-7-8";
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+ cma-128 = <0>,"-4-5+6-7-8";
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+ cma-96 = <0>,"-4-5-6+7-8";
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+ cma-64 = <0>,"-4-5-6-7+8";
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+ };
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};
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