linux-kernel - [PATCH V4 5/7] perf mem: Clean up is_mem_loads_aux

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Tue, 23 Jan 2024 10:50:34 -0800
From: kan.liang@...ux.intel.com
To: acme@...nel.org,
	namhyung@...nel.org,
	irogers@...gle.com,
	peterz@...radead.org,
	mingo@...hat.com,
	jolsa@...nel.org,
	adrian.hunter@...el.com,
	john.g.garry@...cle.com,
	will@...nel.org,
	james.clark@....com,
	mike.leach@...aro.org,
	leo.yan@...aro.org,
	yuhaixin.yhx@...ux.alibaba.com,
	renyu.zj@...ux.alibaba.com,
	tmricht@...ux.ibm.com,
	ravi.bangoria@....com,
	atrajeev@...ux.vnet.ibm.com,
	linux-kernel@...r.kernel.org,
	linux-perf-users@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc: Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH V4 5/7] perf mem: Clean up is_mem_loads_aux_event()

From: Kan Liang <kan.liang@...ux.intel.com>

The aux_event can be retrieved from the perf_pmu now. Implement a
generic support.

Reviewed-by: Ian Rogers <irogers@...gle.com>
Tested-by: Ravi Bangoria <ravi.bangoria@....com>
Tested-by: Leo Yan <leo.yan@...aro.org>
Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 tools/perf/arch/x86/util/mem-events.c | 23 ++++-------------------
 tools/perf/util/mem-events.c          | 14 ++++++++++++--
 2 files changed, 16 insertions(+), 21 deletions(-)

diff --git a/tools/perf/arch/x86/util/mem-events.c b/tools/perf/arch/x86/util/mem-events.c
index b776d849fc64..62df03e91c7e 100644
--- a/tools/perf/arch/x86/util/mem-events.c
+++ b/tools/perf/arch/x86/util/mem-events.c
@@ -1,11 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
-#include "util/pmu.h"
-#include "util/pmus.h"
-#include "util/env.h"
-#include "map_symbol.h"
-#include "mem-events.h"
 #include "linux/string.h"
-#include "env.h"
+#include "util/map_symbol.h"
+#include "util/mem-events.h"
+#include "mem-events.h"
+
 
 #define MEM_LOADS_AUX		0x8203
 
@@ -28,16 +26,3 @@ struct perf_mem_event perf_mem_events_amd[PERF_MEM_EVENTS__MAX] = {
 	E(NULL,		NULL,		NULL,	false,	0),
 	E("mem-ldst",	"%s//",		NULL,	false,	0),
 };
-
-bool is_mem_loads_aux_event(struct evsel *leader)
-{
-	struct perf_pmu *pmu = perf_pmus__find("cpu");
-
-	if (!pmu)
-		pmu = perf_pmus__find("cpu_core");
-
-	if (pmu && !perf_pmu__have_event(pmu, "mem-loads-aux"))
-		return false;
-
-	return leader->core.attr.config == MEM_LOADS_AUX;
-}
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index 32890848bb3d..7d7df3d0b2b9 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -107,9 +107,19 @@ static const char *perf_pmu__mem_events_name(int i, struct perf_pmu *pmu)
 	return NULL;
 }
 
-__weak bool is_mem_loads_aux_event(struct evsel *leader __maybe_unused)
+bool is_mem_loads_aux_event(struct evsel *leader)
 {
-	return false;
+	struct perf_pmu *pmu = leader->pmu;
+	struct perf_mem_event *e;
+
+	if (!pmu || !pmu->mem_events)
+		return false;
+
+	e = &pmu->mem_events[PERF_MEM_EVENTS__LOAD];
+	if (!e->aux_event)
+		return false;
+
+	return leader->core.attr.config == e->aux_event;
 }
 
 int perf_pmu__mem_events_parse(struct perf_pmu *pmu, const char *str)
-- 
2.35.1