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    Subject[PATCH 14/52] perf c2c report: Add 'offset' dimension key
    Date
    From: Jiri Olsa <jolsa@kernel.org>

    It displays cacheline offset as hex number.

    Signed-off-by: Jiri Olsa <jolsa@kernel.org>
    Cc: Andi Kleen <andi@firstfloor.org>
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Don Zickus <dzickus@redhat.com>
    Cc: Joe Mario <jmario@redhat.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Link: http://lkml.kernel.org/n/tip-m0424ye98lqveg5nopto8qww@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    ---
    tools/perf/builtin-c2c.c | 36 ++++++++++++++++++++++++++++++++++++
    1 file changed, 36 insertions(+)

    diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
    index 3a3e67f6e772..01d541fd7022 100644
    --- a/tools/perf/builtin-c2c.c
    +++ b/tools/perf/builtin-c2c.c
    @@ -301,6 +301,33 @@ static int dcacheline_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
    return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
    }

    +static int offset_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
    + struct hist_entry *he)
    +{
    + uint64_t addr = 0;
    + int width = c2c_width(fmt, hpp, he->hists);
    + char buf[20];
    +
    + if (he->mem_info)
    + addr = cl_offset(he->mem_info->daddr.al_addr);
    +
    + return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
    +}
    +
    +static int64_t
    +offset_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
    + struct hist_entry *left, struct hist_entry *right)
    +{
    + uint64_t l = 0, r = 0;
    +
    + if (left->mem_info)
    + l = cl_offset(left->mem_info->daddr.addr);
    + if (right->mem_info)
    + r = cl_offset(right->mem_info->daddr.addr);
    +
    + return (int64_t)(r - l);
    +}
    +
    #define HEADER_LOW(__h) \
    { \
    .line[1] = { \
    @@ -344,8 +371,17 @@ static struct c2c_dimension dim_dcacheline = {
    .width = 18,
    };

    +static struct c2c_dimension dim_offset = {
    + .header = HEADER_BOTH("Data address", "Offset"),
    + .name = "offset",
    + .cmp = offset_cmp,
    + .entry = offset_entry,
    + .width = 18,
    +};
    +
    static struct c2c_dimension *dimensions[] = {
    &dim_dcacheline,
    + &dim_offset,
    NULL,
    };

    --
    2.7.4
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