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    Subject[PATCH 3/6] perf stat: Change metrics context calculation
    Date
    Changing metrics context calculation to allow more than
    2 types of context.

    Following patches will add support for the rest of the
    exclude_* bits so we need separate array element for
    all context combinations.

    Link: http://lkml.kernel.org/n/tip-6mj0tn8z60ozof19xd80y6pe@git.kernel.org
    Signed-off-by: Jiri Olsa <jolsa@kernel.org>
    ---
    tools/perf/builtin-stat.c | 17 +++++++++++------
    1 file changed, 11 insertions(+), 6 deletions(-)

    diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
    index 0b163ca4034f..0c748dda0692 100644
    --- a/tools/perf/builtin-stat.c
    +++ b/tools/perf/builtin-stat.c
    @@ -247,9 +247,13 @@ out_free:
    return -1;
    }

    -#define NUM_CTX 3
    +enum {
    + CTX_BIT_USER = 1 << 0,
    + CTX_BIT_KERNEL = 1 << 1,
    + CTX_BIT_MAX = 1 << 2,
    +};

    -enum { CTX_USER, CTX_KERNEL, CTX_ALL };
    +#define NUM_CTX CTX_BIT_MAX

    static struct stats runtime_nsecs_stats[MAX_NR_CPUS];
    static struct stats runtime_cycles_stats[NUM_CTX][MAX_NR_CPUS];
    @@ -269,12 +273,13 @@ static struct stats runtime_elision_stats[NUM_CTX][MAX_NR_CPUS];

    static int evsel_context(struct perf_evsel *evsel)
    {
    + int ctx = 0;
    +
    if (evsel->attr.exclude_kernel)
    - return CTX_USER;
    + ctx |= CTX_BIT_KERNEL;
    if (evsel->attr.exclude_user)
    - return CTX_KERNEL;
    - /* Handle hypervisor too? */
    - return CTX_ALL;
    + ctx |= CTX_BIT_USER;
    + return ctx;
    }

    static void perf_stat__reset_stats(struct perf_evlist *evlist)
    --
    1.9.3


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