[PATCHv4 5/5] arm64: cpuinfo: print info for all CPUs

Christopher Covington cov at codeaurora.org
Fri Jul 18 13:24:34 PDT 2014

On 07/18/2014 12:41 PM, Mark Rutland wrote:
> On Fri, Jul 18, 2014 at 05:18:27PM +0100, Peter Maydell wrote:
>> On 18 July 2014 16:58, Mark Rutland <mark.rutland at arm.com> wrote:
>>> On Fri, Jul 18, 2014 at 04:52:37PM +0100, Peter Maydell wrote:
>>>> Comments in the kernel sources aren't going to guide
>>>> anybody except kernel developers.
>>> That's not entirely true, some people skim the kernel sources to figure
>>> out how they're meant to use syscalls and such (though admitedly this
>>> isn't all that common).
>> Every time anybody has to do that it means you've failed to document
>> something...
> ...and in this case, the thing to document is the hwcaps.
>>>> I was expecting from this commit message that you were going to emit
>>>> actual comments in /proc/cpuinfo...
>>> I don't think that's a good idea, and I can only see that reading when I
>>> squint quite hard. ;)
>> You have to admit it would put the documentation right where
>> the people looking at cpuinfo can find it :-)
> Sure :)
>> How about a patch to Documentation/filesystems/proc.txt ?
> Currently there seems to be a single relevant line, and it doesn't seem
> to be up-to-date for SMP:
> 	cpuinfo     Info about the CPU
> It might make sense to have something under Documentation/arm64, but I
> don't know what precisely.

If you're looking to communicate information to users I would highly recommend
including an update to the Linux man page.




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