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Date: Thu, 20 May 2021 15:00:37 +0800
From: Jin Yao <yao.jin@...ux.intel.com>
To: acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
mingo@...hat.com, alexander.shishkin@...ux.intel.com
Cc: Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
kan.liang@...el.com, yao.jin@...el.com,
Jin Yao <yao.jin@...ux.intel.com>
Subject: [PATCH v1 2/5] perf tools: Support pmu name in perf_mem_events__name
The perf_mem_events__name assumes the pmu is "cpu" but
it's not true for hybrid platform. For example, for Alderlake,
one pmu is "cpu_core".
We introduce a new parameter 'pmu_name' in perf_mem_events__name
to let the caller specify a pmu name.
Signed-off-by: Jin Yao <yao.jin@...ux.intel.com>
---
tools/perf/arch/arm64/util/mem-events.c | 2 +-
tools/perf/arch/powerpc/util/mem-events.c | 2 +-
tools/perf/arch/x86/util/mem-events.c | 28 ++++++++++++++---------
tools/perf/builtin-c2c.c | 4 ++--
tools/perf/builtin-mem.c | 4 ++--
tools/perf/util/mem-events.c | 4 ++--
tools/perf/util/mem-events.h | 2 +-
7 files changed, 26 insertions(+), 20 deletions(-)
diff --git a/tools/perf/arch/arm64/util/mem-events.c b/tools/perf/arch/arm64/util/mem-events.c
index 2a2497372671..be41721b9aa1 100644
--- a/tools/perf/arch/arm64/util/mem-events.c
+++ b/tools/perf/arch/arm64/util/mem-events.c
@@ -20,7 +20,7 @@ struct perf_mem_event *perf_mem_events__ptr(int i)
return &perf_mem_events[i];
}
-char *perf_mem_events__name(int i)
+char *perf_mem_events__name(int i, char *pmu_name __maybe_unused)
{
struct perf_mem_event *e = perf_mem_events__ptr(i);
diff --git a/tools/perf/arch/powerpc/util/mem-events.c b/tools/perf/arch/powerpc/util/mem-events.c
index 07fb5e049488..4120fafe0be4 100644
--- a/tools/perf/arch/powerpc/util/mem-events.c
+++ b/tools/perf/arch/powerpc/util/mem-events.c
@@ -3,7 +3,7 @@
#include "mem-events.h"
/* PowerPC does not support 'ldlat' parameter. */
-char *perf_mem_events__name(int i)
+char *perf_mem_events__name(int i, char *pmu_name __maybe_unused)
{
if (i == PERF_MEM_EVENTS__LOAD)
return (char *) "cpu/mem-loads/";
diff --git a/tools/perf/arch/x86/util/mem-events.c b/tools/perf/arch/x86/util/mem-events.c
index e79232e3f2a0..e50f9e3a695b 100644
--- a/tools/perf/arch/x86/util/mem-events.c
+++ b/tools/perf/arch/x86/util/mem-events.c
@@ -4,10 +4,10 @@
#include "mem-events.h"
static char mem_loads_name[100];
-static bool mem_loads_name__init;
+static char mem_stores_name[100];
#define MEM_LOADS_AUX 0x8203
-#define MEM_LOADS_AUX_NAME "{cpu/mem-loads-aux/,cpu/mem-loads,ldlat=%u/pp}:S"
+#define MEM_LOADS_AUX_NAME "{%s/mem-loads-aux/,%s/mem-loads,ldlat=%u/}:P"
bool is_mem_loads_aux_event(struct evsel *leader)
{
@@ -22,28 +22,34 @@ bool is_mem_loads_aux_event(struct evsel *leader)
return leader->core.attr.config == MEM_LOADS_AUX;
}
-char *perf_mem_events__name(int i)
+char *perf_mem_events__name(int i, char *pmu_name)
{
struct perf_mem_event *e = perf_mem_events__ptr(i);
if (!e)
return NULL;
- if (i == PERF_MEM_EVENTS__LOAD) {
- if (mem_loads_name__init)
- return mem_loads_name;
-
- mem_loads_name__init = true;
+ if (!pmu_name)
+ pmu_name = (char *)"cpu";
- if (pmu_have_event("cpu", "mem-loads-aux")) {
+ if (i == PERF_MEM_EVENTS__LOAD) {
+ if (pmu_have_event(pmu_name, "mem-loads-aux")) {
scnprintf(mem_loads_name, sizeof(mem_loads_name),
- MEM_LOADS_AUX_NAME, perf_mem_events__loads_ldlat);
+ MEM_LOADS_AUX_NAME, pmu_name, pmu_name,
+ perf_mem_events__loads_ldlat);
} else {
scnprintf(mem_loads_name, sizeof(mem_loads_name),
- e->name, perf_mem_events__loads_ldlat);
+ e->name, pmu_name,
+ perf_mem_events__loads_ldlat);
}
return mem_loads_name;
}
+ if (i == PERF_MEM_EVENTS__STORE) {
+ scnprintf(mem_stores_name, sizeof(mem_stores_name),
+ e->name, pmu_name);
+ return mem_stores_name;
+ }
+
return (char *)e->name;
}
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index e3b9d63077ef..a4fd375acdd1 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2971,13 +2971,13 @@ static int perf_c2c__record(int argc, const char **argv)
if (!e->supported) {
pr_err("failed: event '%s' not supported\n",
- perf_mem_events__name(j));
+ perf_mem_events__name(j, NULL));
free(rec_argv);
return -1;
}
rec_argv[i++] = "-e";
- rec_argv[i++] = perf_mem_events__name(j);
+ rec_argv[i++] = perf_mem_events__name(j, NULL);
}
if (all_user)
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index cdd2b9f643f6..03795bf49d51 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -135,13 +135,13 @@ static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
if (!e->supported) {
pr_err("failed: event '%s' not supported\n",
- perf_mem_events__name(j));
+ perf_mem_events__name(j, NULL));
free(rec_argv);
return -1;
}
rec_argv[i++] = "-e";
- rec_argv[i++] = perf_mem_events__name(j);
+ rec_argv[i++] = perf_mem_events__name(j, NULL);
}
if (all_user)
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index f93a852ad838..c736eaded06c 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -37,7 +37,7 @@ struct perf_mem_event * __weak perf_mem_events__ptr(int i)
return &perf_mem_events[i];
}
-char * __weak perf_mem_events__name(int i)
+char * __weak perf_mem_events__name(int i, char *pmu_name __maybe_unused)
{
struct perf_mem_event *e = perf_mem_events__ptr(i);
@@ -141,7 +141,7 @@ void perf_mem_events__list(void)
fprintf(stderr, "%-13s%-*s%s\n",
e->tag ?: "",
verbose > 0 ? 25 : 0,
- verbose > 0 ? perf_mem_events__name(j) : "",
+ verbose > 0 ? perf_mem_events__name(j, NULL) : "",
e->supported ? ": available" : "");
}
}
diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index cacdebd65b8a..a3fa19093fd2 100644
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -38,7 +38,7 @@ extern unsigned int perf_mem_events__loads_ldlat;
int perf_mem_events__parse(const char *str);
int perf_mem_events__init(void);
-char *perf_mem_events__name(int i);
+char *perf_mem_events__name(int i, char *pmu_name);
struct perf_mem_event *perf_mem_events__ptr(int i);
bool is_mem_loads_aux_event(struct evsel *leader);
--
2.17.1
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