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Subject[PATCH 21/57] perf c2c report: Add offset dimension key
Date
Adding cacheline offset dimension key support.
It displays cacheline offset as hex number.

Link: http://lkml.kernel.org/n/tip-m0424ye98lqveg5nopto8qww@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-c2c.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 335c0fd30757..7c52481ec36b 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -300,6 +300,32 @@ static int dcacheline_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
return snprintf(hpp->buf, hpp->size, "%*s", width, hex_str(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);
+
+ if (he->mem_info)
+ addr = cl_offset(he->mem_info->daddr.al_addr);
+
+ return snprintf(hpp->buf, hpp->size, "%*s", width, hex_str(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] = { \
@@ -343,8 +369,17 @@ 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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