tree 333bf2174ef2dd9921e93b96475a8b96bfec27ec
parent 694d0d0bb2030d2e36df73e2d23d5770511dbc8d
author Pawel Moll <pawel.moll@arm.com> 1470152737 +0100
committer Pawel Moll <pawel.moll@arm.com> 1471427337 +0100

bus: arm-ccn: Fix PMU handling of MN

The "Miscellaneous Node" fell through cracks of node initialisation,
as its ID is shared with HN-I.

This patch treats MN as a special case (which it is), adding separate
validation check for it and pre-defining the node ID in relevant events
descriptions. That way one can simply run:

	# perf stat -a -e ccn/mn_ecbarrier/ <workload>

Additionally, direction in the MN pseudo-events XP watchpoint
definitions is corrected to be "TX" (1) as they are defined from the
crosspoint point of view (thus barriers are transmitted from XP to MN).

Cc: stable@vger.kernel.org # 3.17+
Signed-off-by: Pawel Moll <pawel.moll@arm.com>