On 24 August 2016 at 23:10, Rob Herring <robh+dt@xxxxxxxxxx> wrote:
> 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.
>
Got it. I will fix and resend.
> Acked-by: Rob Herring <robh@xxxxxxxxxx>
>
Thanks.
-Guodong
> Rob
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