[tip:perf/core] perf/x86-ibs: Enable ibs op micro-ops counting mode

From: tip-bot for Robert Richter
Date: Wed May 09 2012 - 10:31:47 EST

Commit-ID: 7bf352384fda3f678a283928c6c5b2cd9da877e4
Gitweb: http://git.kernel.org/tip/7bf352384fda3f678a283928c6c5b2cd9da877e4
Author: Robert Richter <robert.richter@xxxxxxx>
AuthorDate: Mon, 2 Apr 2012 20:19:09 +0200
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 9 May 2012 15:23:12 +0200

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@xxxxxxx>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1333390758-10893-4-git-send-email-robert.richter@xxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
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 2317228..ebf169f 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);
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/