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    Subject[tip:perf/core] perf/x86-ibs: Enable ibs op micro-ops counting mode
    Commit-ID:  7bf352384fda3f678a283928c6c5b2cd9da877e4
    Gitweb: http://git.kernel.org/tip/7bf352384fda3f678a283928c6c5b2cd9da877e4
    Author: Robert Richter <robert.richter@amd.com>
    AuthorDate: Mon, 2 Apr 2012 20:19:09 +0200
    Committer: Ingo Molnar <mingo@kernel.org>
    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@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>
    ---
    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);

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