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authorRobert Richter <robert.richter@amd.com>2012-04-02 20:19:09 +0200
committerIngo Molnar <mingo@kernel.org>2012-05-09 15:23:12 +0200
commit7bf352384fda3f678a283928c6c5b2cd9da877e4 (patch)
tree8a091d349a1852e4e8179f1102673ee93ee5118a
parentfd0d000b2c34aa43d4e92dcf0dfaeda7e123008a (diff)
downloadlinux-7bf352384fda3f678a283928c6c5b2cd9da877e4.tar.bz2
perf/x86-ibs: Enable ibs op micro-ops counting mode
Allow enabling ibs op micro-ops counting mode. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-4-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rw-r--r--arch/x86/kernel/cpu/perf_event_amd_ibs.c2
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 2317228b5299..ebf169fe40ef 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);