[aarch64-port-dev ] RFR: 8079203: aarch64: need to cater for different partner implementations

[Jon Masters]

On 05/05/2015 10:57 AM, Andrew Haley wrote:
> On 05/05/2015 03:52 PM, Mark Rutland wrote:
>> We're looking into exposing such information to userspace in a more
>> structured manner at the moment, but we don't have an RFC just yet. I
>> take it that you would be interested when that appears?
> 
> You're not kidding.  This is something we need desperately, some time
> last year.  JIT compilers really are different to all other userspace
> programs in this regard: we really do need to know exact models,
> pipelines, and so on, in order to generate best code.  In some cases
> we even need to minor CPU versions to work around bugs.  We really
> don't want to have to parse /proc/cpuinfo.

I've got an action to get a Linaro card (development request) setup to
provide this info as an AUXVEC into userspace in some sane way. I'll
ping Mark and see what he has in mind before proceeding.

Jon.