* [PATCH] arm64: meson-g12a: Add CMA reserved memory
@ 2019-03-27 10:21 Neil Armstrong
2019-03-29 20:57 ` Kevin Hilman
0 siblings, 1 reply; 2+ messages in thread
From: Neil Armstrong @ 2019-03-27 10:21 UTC (permalink / raw)
To: khilman; +Cc: linux-amlogic, linux-kernel, linux-arm-kernel, Neil Armstrong
In order to handle Video Output and later on Video decoding,
add a reserved CMA pool with a similar 256MiB size as other SoCs.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
arch/arm64/boot/dts/amlogic/meson-g12a.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
index 8f6f72e9825c..58176b525004 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
@@ -82,6 +82,14 @@
reg = <0x0 0x05000000 0x0 0x300000>;
no-map;
};
+
+ linux,cma {
+ compatible = "shared-dma-pool";
+ reusable;
+ size = <0x0 0x10000000>;
+ alignment = <0x0 0x400000>;
+ linux,cma-default;
+ };
};
sm: secure-monitor {
--
2.21.0
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2019-03-29 20:57 ` Kevin Hilman
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