On Wed, Aug 24, 2016 at 8:35 AM, Guodong Xu <guodong.xu@xxxxxxxxxx> 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/
>
> Increase the default CMA size to 128 MB.
>
> cc: Rob Herring <rob.herring@xxxxxxxxxx>
> cc: Fathi Boudra <fathi.boudra@xxxxxxxxxx>
> cc: John Stultz <john.stultz@xxxxxxxxxx>
> cc: Xinliang Liu <xinliang.liu@xxxxxxxxxx>
> Signed-off-by: Guodong Xu <guodong.xu@xxxxxxxxxx>
> ---
> 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@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@xxxxxxxxxx>
Rob
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