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authorMadhavan Srinivasan <maddy@linux.vnet.ibm.com>2017-11-22 10:45:38 +0530
committerMichael Ellerman <mpe@ellerman.id.au>2017-11-22 23:04:23 +1100
commitde34787f1096cce38e2590be0013b44418d14546 (patch)
tree2f322ae62f678870e62d0c9b01afa1005c87b3fa /arch
parent252eb55816a6f69ef9464cad303cdb3326cdc61d (diff)
downloadlinux-de34787f1096cce38e2590be0013b44418d14546.tar.bz2
powerpc/perf: Fix pmu_count to count only nest imc pmus
"pmu_count" in opal_imc_counters_probe() is intended to hold the number of successful nest imc pmu registerations. But current code also counts other imc units like core_imc and thread_imc. Patch add a check to count only nest imc pmus. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/powernv/opal-imc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c
index 21f6531fae20..b150f4deaccf 100644
--- a/arch/powerpc/platforms/powernv/opal-imc.c
+++ b/arch/powerpc/platforms/powernv/opal-imc.c
@@ -191,8 +191,10 @@ static int opal_imc_counters_probe(struct platform_device *pdev)
break;
}
- if (!imc_pmu_create(imc_dev, pmu_count, domain))
- pmu_count++;
+ if (!imc_pmu_create(imc_dev, pmu_count, domain)) {
+ if (domain == IMC_DOMAIN_NEST)
+ pmu_count++;
+ }
}
return 0;