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    Subject[PATCH 1/3] sh: Accessor functions for the sh_pmu state
    Date
    Introduce some accessor functions for getting at the name and number of
    counters of the current sh_pmu instance.

    Signed-off-by: Matt Fleming <matt@console-pimps.org>
    ---
    arch/sh/include/asm/perf_event.h | 2 ++
    arch/sh/kernel/perf_event.c | 13 +++++++++++++
    2 files changed, 15 insertions(+), 0 deletions(-)

    diff --git a/arch/sh/include/asm/perf_event.h b/arch/sh/include/asm/perf_event.h
    index 3d0c9f3..5b7fa84 100644
    --- a/arch/sh/include/asm/perf_event.h
    +++ b/arch/sh/include/asm/perf_event.h
    @@ -25,6 +25,8 @@ struct sh_pmu {
    extern int register_sh_pmu(struct sh_pmu *);
    extern int reserve_pmc_hardware(void);
    extern void release_pmc_hardware(void);
    +extern int sh_pmu_num_events(void);
    +extern const char *sh_pmu_name(void);

    static inline void set_perf_event_pending(void)
    {
    diff --git a/arch/sh/kernel/perf_event.c b/arch/sh/kernel/perf_event.c
    index 7a3dc35..086f788 100644
    --- a/arch/sh/kernel/perf_event.c
    +++ b/arch/sh/kernel/perf_event.c
    @@ -60,6 +60,19 @@ static inline int sh_pmu_initialized(void)
    }

    /*
    + * Return the number of events for the current sh_pmu.
    + */
    +int sh_pmu_num_events(void)
    +{
    + return sh_pmu->num_events;
    +}
    +
    +const char *sh_pmu_name(void)
    +{
    + return sh_pmu->name;
    +}
    +
    +/*
    * Release the PMU if this is the last perf_event.
    */
    static void hw_perf_event_destroy(struct perf_event *event)
    --
    1.7.2.1


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