[PATCH 03/12] perf/x86-ibs: Enable ibs op micro-ops counting mode

From: Robert Richter
Date: Mon Apr 02 2012 - 14:22:53 EST


Allow enabling ibs op micro-ops counting mode.

Signed-off-by: Robert Richter <robert.richter@xxxxxxx>
---
arch/x86/kernel/cpu/perf_event_amd_ibs.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_amd_ibs.c b/arch/x86/kernel/cpu/perf_event_amd_ibs.c
index 74b663c..6f00ee3 100644
--- a/arch/x86/kernel/cpu/perf_event_amd_ibs.c
+++ b/arch/x86/kernel/cpu/perf_event_amd_ibs.c
@@ -468,6 +468,8 @@ static __init int perf_event_ibs_init(void)
return -ENODEV; /* ibs not supported by the cpu */

perf_ibs_pmu_init(&perf_ibs_fetch, "ibs_fetch");
+ if (ibs_caps & IBS_CAPS_OPCNT)
+ perf_ibs_op.config_mask |= IBS_OP_CNT_CTL;
perf_ibs_pmu_init(&perf_ibs_op, "ibs_op");
register_nmi_handler(NMI_LOCAL, &perf_ibs_nmi_handler, 0, "perf_ibs");
printk(KERN_INFO "perf: AMD IBS detected (0x%08x)\n", ibs_caps);
--
1.7.8.4


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