[PATCH 2/2] arm64: Pass RAM boundary and enable-dcache flag to purgatory

Pratyush Anand panand at redhat.com
Wed Nov 23 00:17:09 PST 2016


Hi Simon,

Thanks for your review comment.

On Wed, Nov 23, 2016 at 1:38 PM, Simon Horman <horms at verge.net.au> wrote:
> On Wed, Nov 23, 2016 at 07:41:52AM +0530, Pratyush Anand wrote:
>>
>>
>> On Wednesday 23 November 2016 07:33 AM, Dave Young wrote:
>> >>Although this is very unlikely that a hardware will support only 16K page
>> >>> sizes, however it is possible. Therefore, its better to keep it disabled by
>> >>> default.
>> >If it is *unlikely* it could be better to make it as default and add a
>> >--disable-dcache instead.
>> >
>>
>> I think, I can do that.
>
> Can this be detected at run-time?



Thats doable. OK, so if everyone agrees then I can send a V2 where
neither --enable-dcache nor --disable-dcache will be used. It will
enable dcache if 4K/64K page is supported and will do nothing
otherwise.

~Pratyush



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