Re: [PATCH 18/18] 2.6.17.9 perfmon2 patch for review: new x86_64 files

[Andi Kleen]

> I have a second thought on this. AMD has architected the performance counters.

Quote:
>>
Implementations are not required to support the performance
c o u n t e rs and the event-select registers, or the time-stamp
counter. The presence of these features can be determined by
<<

Also all code I've seen checked the family at least.


> Their specification is not part of a model specific documentation but
> part of the AMD64 architecure. 

The high level specification is, but not the actual counters for once.

> What I don't not quite understand with the K7, K8 terminology is the
> relation/dependencies with the AMD64 architecture specification.
AMD64 gives a high level register format, K7/K8 is the actual list 
of performance counters.

-Andi

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/