On Wed, 21 Jun 2017, Andi Kleen wrote:
> I didn't add a generic flag for hops because it's not needed
> for Skylake.
When is that going to come?
> diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
> index b1c0b187acfe..7cfeb54e0b5a 100644
> --- a/include/uapi/linux/perf_event.h
> +++ b/include/uapi/linux/perf_event.h
> @@ -931,14 +931,20 @@ union perf_mem_data_src {
> mem_snoop:5, /* snoop mode */
> mem_lock:2, /* lock instr */
> mem_dtlb:7, /* tlb access */
> - mem_rsvd:31;
> + mem_lvl_num:4, /* memory hierarchy level number */
> + mem_remote:1, /* remote */
> + mem_snoopx:2, /* snoop mode, ext */
Is that extending snoopx another time?
The question really is, whether the 2 bits are going to be sufficient for a
while or are we going to add snoopx2 in a few month from now.
Thanks,
tglx
