[PATCH] arm64: dts: hikey: extend default cma size to 128MB
From: robh+dt@kernel.org (Rob Herring)
Date: 2016-08-24 15:21:16
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linux-devicetree, lkml
On Wed, Aug 24, 2016 at 8:35 AM, Guodong Xu [off-list ref] wrote:
To support display in Debian on HiKey, cma heap is used to allocate graphic buffers. The default size of CMA is 16 MB which is not enought.
s/enought/enough/
quoted hunk ↗ jump to hunk
Increase the default CMA size to 128 MB. cc: Rob Herring <redacted> cc: Fathi Boudra <redacted> cc: John Stultz <redacted> cc: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Guodong Xu <redacted> --- arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+)diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts index 4a51058..abb3434 100644 --- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts +++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts@@ -45,6 +45,20 @@ <0x00000000 0x22000000 0x00000000 0x1c000000>; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + /* global autoconfigured region for contiguous allocations */ + linux,cma { + compatible = "shared-dma-pool"; + reusable; + size = <0x00000000 0x08000000>; + linux,cma-default; + }; + }; + pstore: pstore at 0x21f00000 {
So what is upstream (as of 4.8) for ramoops also uses reserved-memory, so you should separately fix this. Acked-by: Rob Herring <robh@kernel.org> Rob