linux-kernel - [PATCH 20/57] perf c2c report: Add dcacheline dimension key

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Message-Id: <1474558645-19956-21-git-send-email-jolsa@kernel.org>
Date:   Thu, 22 Sep 2016 17:36:48 +0200
From:   Jiri Olsa <jolsa@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Don Zickus <dzickus@...hat.com>, Joe Mario <jmario@...hat.com>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Andi Kleen <andi@...stfloor.org>
Subject: [PATCH 20/57] perf c2c report: Add dcacheline dimension key

Adding dcacheline dimension key support. It
displays cacheline address as hex number.

Using c2c wrapper to standard 'dcacheline' object
to defined own header and simple (just address)
cacheline output.

Link: http://lkml.kernel.org/n/tip-j5enppr8e7h27nskqhgq33lu@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/builtin-c2c.c | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index cfa12930b77b..335c0fd30757 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1,5 +1,6 @@
 #include <linux/compiler.h>
 #include <linux/kernel.h>
+#include <linux/stringify.h>
 #include "util.h"
 #include "debug.h"
 #include "builtin.h"
@@ -7,6 +8,7 @@
 #include "mem-events.h"
 #include "session.h"
 #include "hist.h"
+#include "sort.h"
 #include "tool.h"
 #include "data.h"
 #include "sort.h"
@@ -271,6 +273,33 @@ static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 	return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
 }
 
+static char *hex_str(u64 val)
+{
+	static char buf[20];
+
+	snprintf(buf, 20, "0x%" PRIx64, val);
+	return buf;
+}
+
+static int64_t
+dcacheline_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+	       struct hist_entry *left, struct hist_entry *right)
+{
+	return sort__dcacheline_cmp(left, right);
+}
+
+static int dcacheline_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_address(he->mem_info->daddr.addr);
+
+	return snprintf(hpp->buf, hpp->size, "%*s", width, hex_str(addr));
+}
+
 #define HEADER_LOW(__h)			\
 	{				\
 		.line[1] = {		\
@@ -306,7 +335,16 @@ static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 		},			\
 	}
 
+static struct c2c_dimension dim_dcacheline = {
+	.header		= HEADER_LOW("Cacheline"),
+	.name		= "dcacheline",
+	.cmp		= dcacheline_cmp,
+	.entry		= dcacheline_entry,
+	.width		= 18,
+};
+
 static struct c2c_dimension *dimensions[] = {
+	&dim_dcacheline,
 	NULL,
 };
 
-- 
2.7.4