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powerpc/perf: Add restrictions to PMC5 in power9 DD1
authorMadhavan Srinivasan <maddy@linux.vnet.ibm.com>
Sun, 12 Feb 2017 17:03:15 +0000 (22:33 +0530)
committerSeth Forshee <seth.forshee@canonical.com>
Fri, 24 Feb 2017 13:23:34 +0000 (07:23 -0600)
commitd609ccb256d41b8b010a4b6559b60ea59eb0fc7f
tree3e28180ca244a75ccfad39ad341275eb38f99209tree
parentfab2999d22f3b85f952b7ae34903c6dd9434e266commit | diff
powerpc/perf: Add restrictions to PMC5 in power9 DD1

BugLink: http://bugs.launchpad.net/bugs/1667413
PMC5 on POWER9 DD1 may not provide right counts in all
sampling scenarios, hence use PM_INST_DISP event instead
in PMC2 or PMC3 in preference.

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
(cherry picked from commit linux-next 8d911904f3ce412b20874a9c95f82009dcbb007c)
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
arch/powerpc/perf/isa207-common.h diff | blob | blame | history
arch/powerpc/perf/power9-pmu.c diff | blob | blame | history
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