Kajol Jain cb1c4aba05 perf: Add new macros for mem_hops field
Add new macros for mem_hops field which can be used to
represent remote-node, socket and board level details.

Currently the code had macro for HOPS_0, which corresponds
to data coming from another core but same node.
Add new macros for HOPS_1 to HOPS_3 to represent
remote-node, socket and board level data.

For ex: Encodings for mem_hops fields with L2 cache:

L2			- local L2
L2 | REMOTE | HOPS_0	- remote core, same node L2
L2 | REMOTE | HOPS_1	- remote node, same socket L2
L2 | REMOTE | HOPS_2	- remote socket, same board L2
L2 | REMOTE | HOPS_3	- remote board L2

Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211206091749.87585-2-kjain@linux.ibm.com
2021-12-16 21:31:44 +11:00
2021-11-21 13:47:39 -08:00

Linux kernel
============

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