Re: failure notice

[Brian Inglis <Brian.Inglis@SystematicSw.ab.ca>]

On 2018-04-13 21:10, Jeffrey Walton wrote:
>> On Fri, Apr 13, 2018 at 8:36 PM, Jeffrey Walton <noloader@gmail.com> wrote:
>>> On Fri, Apr 13, 2018 at 7:51 AM, Corinna Vinschen
>>> <corinna-cygwin@cygwin.com> wrote:
>>>> On Apr 12 23:01, Jeffrey Walton wrote:
>>>>> Hi Everyone,
>>>>>
>>>>> I'm working on an AMD A6-9220 and seeing unusual results from
>>>>> /proc/cpuinfo. I think this may be an issue with the latest Cygwin. It
>>>>> may be present in earlier versions, too.
>>>>>
>>>>> Russinovich's coreinfo is shown below
>>>>> (https://docs.microsoft.com/en-us/sysinternals/downloads/coreinfo).
>>>>> Notice /proc/cpuinfo is missing aesni, pclmul, rdrand, SSE4.1, SSE4.2,
>>>>> AVX, etc.
>>>>
>>>> Note that, in theory, cpuinfo has to be extended for each new CPU
>>>> generation.  That's a lot of work for marginal gain (Cygwin's not a real
>>>> kernel) so I'm doing this only very seldomly.
>>>>
>>>> Patches welcome, of course!
>>>
>>> Thanks Corinna. I think I found the file of interest at fhandler_proc.cc.
>>>
>>> Whitespace is a bit off. It is a mix of tabs and space:
>>>
>>>       if (features1 & (1 << 0))
>>>     print (" fpu");
>>>       if (features1 & (1 << 1))
>>>     print (" vme");
>>>
>>> Should I perform a whitespace check-in before things begin? Or can you
>>> knock it out?
>>
>> The attachment is pp 572-74 from AMD's Programmer's Guide, Volume 3,
>> General-Purpose and System Instructions (December 2017)
>> (https://support.amd.com/TechDocs/24594.pdf). I believe it has the all
>> the necessary information.
>>
>> Are there any objections to using it?
> Any ideas how to get this through? It is a three page PDF extracted from the
> AMD manual. It has the necessary information for the CPUID updates.
Just include the link to Appendix D section 2 from the ToC:
https://support.amd.com/TechDocs/24594.pdf#G14.931059

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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