From: kan.liang@linux.intel.com
To: acme@kernel.org, irogers@google.com, peterz@infradead.org,
mingo@redhat.com, namhyung@kernel.org, jolsa@kernel.org,
adrian.hunter@intel.com, john.g.garry@oracle.com,
will@kernel.org, james.clark@arm.com, mike.leach@linaro.org,
leo.yan@linaro.org, yuhaixin.yhx@linux.alibaba.com,
renyu.zj@linux.alibaba.com, tmricht@linux.ibm.com,
ravi.bangoria@amd.com, atrajeev@linux.vnet.ibm.com,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Kan Liang <kan.liang@linux.intel.com>
Subject: [PATCH V3 1/7] perf mem: Add mem_events into the supported perf_pmu
Date: Wed, 13 Dec 2023 11:51:48 -0800 [thread overview]
Message-ID: <20231213195154.1085945-2-kan.liang@linux.intel.com> (raw)
In-Reply-To: <20231213195154.1085945-1-kan.liang@linux.intel.com>
From: Kan Liang <kan.liang@linux.intel.com>
With the mem_events, perf doesn't need to read sysfs for each PMU to
find the mem-events-supported PMU. The patch also makes it possible to
clean up the related __weak functions later.
The patch is only to add the mem_events into the perf_pmu for all ARCHs.
It will be used in the later cleanup patches.
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ravi Bangoria <ravi.bangoria@amd.com>
Suggested-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---
tools/perf/arch/arm/util/pmu.c | 3 +++
tools/perf/arch/arm64/util/mem-events.c | 7 ++++---
tools/perf/arch/arm64/util/mem-events.h | 7 +++++++
tools/perf/arch/s390/util/pmu.c | 3 +++
tools/perf/arch/x86/util/mem-events.c | 4 ++--
tools/perf/arch/x86/util/mem-events.h | 9 +++++++++
tools/perf/arch/x86/util/pmu.c | 7 +++++++
tools/perf/util/mem-events.c | 2 +-
tools/perf/util/mem-events.h | 1 +
tools/perf/util/pmu.c | 4 +++-
tools/perf/util/pmu.h | 7 +++++++
11 files changed, 47 insertions(+), 7 deletions(-)
create mode 100644 tools/perf/arch/arm64/util/mem-events.h
create mode 100644 tools/perf/arch/x86/util/mem-events.h
diff --git a/tools/perf/arch/arm/util/pmu.c b/tools/perf/arch/arm/util/pmu.c
index 7f3af3b97f3b..8b7cb68ba1a8 100644
--- a/tools/perf/arch/arm/util/pmu.c
+++ b/tools/perf/arch/arm/util/pmu.c
@@ -13,6 +13,7 @@
#include "hisi-ptt.h"
#include "../../../util/pmu.h"
#include "../../../util/cs-etm.h"
+#include "../../arm64/util/mem-events.h"
void perf_pmu__arch_init(struct perf_pmu *pmu __maybe_unused)
{
@@ -26,6 +27,8 @@ void perf_pmu__arch_init(struct perf_pmu *pmu __maybe_unused)
pmu->selectable = true;
pmu->is_uncore = false;
pmu->perf_event_attr_init_default = arm_spe_pmu_default_config;
+ if (!strcmp(pmu->name, "arm_spe_0"))
+ pmu->mem_events = perf_mem_events_arm;
} else if (strstarts(pmu->name, HISI_PTT_PMU_NAME)) {
pmu->selectable = true;
#endif
diff --git a/tools/perf/arch/arm64/util/mem-events.c b/tools/perf/arch/arm64/util/mem-events.c
index 3bcc5c7035c2..edf8207f7812 100644
--- a/tools/perf/arch/arm64/util/mem-events.c
+++ b/tools/perf/arch/arm64/util/mem-events.c
@@ -1,10 +1,11 @@
// SPDX-License-Identifier: GPL-2.0
-#include "map_symbol.h"
+#include "util/map_symbol.h"
+#include "util/mem-events.h"
#include "mem-events.h"
#define E(t, n, s) { .tag = t, .name = n, .sysfs_name = s }
-static struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = {
+struct perf_mem_event perf_mem_events_arm[PERF_MEM_EVENTS__MAX] = {
E("spe-load", "arm_spe_0/ts_enable=1,pa_enable=1,load_filter=1,store_filter=0,min_latency=%u/", "arm_spe_0"),
E("spe-store", "arm_spe_0/ts_enable=1,pa_enable=1,load_filter=0,store_filter=1/", "arm_spe_0"),
E("spe-ldst", "arm_spe_0/ts_enable=1,pa_enable=1,load_filter=1,store_filter=1,min_latency=%u/", "arm_spe_0"),
@@ -17,7 +18,7 @@ struct perf_mem_event *perf_mem_events__ptr(int i)
if (i >= PERF_MEM_EVENTS__MAX)
return NULL;
- return &perf_mem_events[i];
+ return &perf_mem_events_arm[i];
}
const char *perf_mem_events__name(int i, const char *pmu_name __maybe_unused)
diff --git a/tools/perf/arch/arm64/util/mem-events.h b/tools/perf/arch/arm64/util/mem-events.h
new file mode 100644
index 000000000000..5fc50be4be38
--- /dev/null
+++ b/tools/perf/arch/arm64/util/mem-events.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ARM64_MEM_EVENTS_H
+#define _ARM64_MEM_EVENTS_H
+
+extern struct perf_mem_event perf_mem_events_arm[PERF_MEM_EVENTS__MAX];
+
+#endif /* _ARM64_MEM_EVENTS_H */
diff --git a/tools/perf/arch/s390/util/pmu.c b/tools/perf/arch/s390/util/pmu.c
index 886c30e001fa..225d7dc2379c 100644
--- a/tools/perf/arch/s390/util/pmu.c
+++ b/tools/perf/arch/s390/util/pmu.c
@@ -19,4 +19,7 @@ void perf_pmu__arch_init(struct perf_pmu *pmu)
!strcmp(pmu->name, S390_PMUPAI_EXT) ||
!strcmp(pmu->name, S390_PMUCPUM_CF))
pmu->selectable = true;
+
+ if (pmu->is_core)
+ pmu->mem_events = perf_mem_events;
}
diff --git a/tools/perf/arch/x86/util/mem-events.c b/tools/perf/arch/x86/util/mem-events.c
index 191b372f9a2d..2b81d229982c 100644
--- a/tools/perf/arch/x86/util/mem-events.c
+++ b/tools/perf/arch/x86/util/mem-events.c
@@ -16,13 +16,13 @@ static char mem_stores_name[100];
#define E(t, n, s) { .tag = t, .name = n, .sysfs_name = s }
-static struct perf_mem_event perf_mem_events_intel[PERF_MEM_EVENTS__MAX] = {
+struct perf_mem_event perf_mem_events_intel[PERF_MEM_EVENTS__MAX] = {
E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "%s/events/mem-loads"),
E("ldlat-stores", "%s/mem-stores/P", "%s/events/mem-stores"),
E(NULL, NULL, NULL),
};
-static struct perf_mem_event perf_mem_events_amd[PERF_MEM_EVENTS__MAX] = {
+struct perf_mem_event perf_mem_events_amd[PERF_MEM_EVENTS__MAX] = {
E(NULL, NULL, NULL),
E(NULL, NULL, NULL),
E("mem-ldst", "ibs_op//", "ibs_op"),
diff --git a/tools/perf/arch/x86/util/mem-events.h b/tools/perf/arch/x86/util/mem-events.h
new file mode 100644
index 000000000000..3959e427f482
--- /dev/null
+++ b/tools/perf/arch/x86/util/mem-events.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _X86_MEM_EVENTS_H
+#define _X86_MEM_EVENTS_H
+
+extern struct perf_mem_event perf_mem_events_intel[PERF_MEM_EVENTS__MAX];
+
+extern struct perf_mem_event perf_mem_events_amd[PERF_MEM_EVENTS__MAX];
+
+#endif /* _X86_MEM_EVENTS_H */
diff --git a/tools/perf/arch/x86/util/pmu.c b/tools/perf/arch/x86/util/pmu.c
index 469555ae9b3c..cd22e80e5657 100644
--- a/tools/perf/arch/x86/util/pmu.c
+++ b/tools/perf/arch/x86/util/pmu.c
@@ -15,6 +15,7 @@
#include "../../../util/pmu.h"
#include "../../../util/fncache.h"
#include "../../../util/pmus.h"
+#include "mem-events.h"
#include "env.h"
void perf_pmu__arch_init(struct perf_pmu *pmu __maybe_unused)
@@ -30,6 +31,12 @@ void perf_pmu__arch_init(struct perf_pmu *pmu __maybe_unused)
pmu->selectable = true;
}
#endif
+
+ if (x86__is_amd_cpu()) {
+ if (!strcmp(pmu->name, "ibs_op"))
+ pmu->mem_events = perf_mem_events_amd;
+ } else if (pmu->is_core)
+ pmu->mem_events = perf_mem_events_intel;
}
int perf_pmus__num_mem_pmus(void)
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index 3a2e3687878c..0a8f415f5efe 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -19,7 +19,7 @@ unsigned int perf_mem_events__loads_ldlat = 30;
#define E(t, n, s) { .tag = t, .name = n, .sysfs_name = s }
-static struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = {
+struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = {
E("ldlat-loads", "cpu/mem-loads,ldlat=%u/P", "cpu/events/mem-loads"),
E("ldlat-stores", "cpu/mem-stores/P", "cpu/events/mem-stores"),
E(NULL, NULL, NULL),
diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index b40ad6ea93fc..8c5694b2d0b0 100644
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -34,6 +34,7 @@ enum {
};
extern unsigned int perf_mem_events__loads_ldlat;
+extern struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX];
int perf_mem_events__parse(const char *str);
int perf_mem_events__init(void);
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 3c9609944a2f..3d4373b8ab63 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -986,8 +986,10 @@ static int pmu_max_precise(int dirfd, struct perf_pmu *pmu)
}
void __weak
-perf_pmu__arch_init(struct perf_pmu *pmu __maybe_unused)
+perf_pmu__arch_init(struct perf_pmu *pmu)
{
+ if (pmu->is_core)
+ pmu->mem_events = perf_mem_events;
}
struct perf_pmu *perf_pmu__lookup(struct list_head *pmus, int dirfd, const char *name)
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 424c3fee0949..e35d985206db 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -10,6 +10,8 @@
#include <stdio.h>
#include "parse-events.h"
#include "pmu-events/pmu-events.h"
+#include "map_symbol.h"
+#include "mem-events.h"
struct evsel_config_term;
struct perf_cpu_map;
@@ -162,6 +164,11 @@ struct perf_pmu {
*/
bool exclude_guest;
} missing_features;
+
+ /**
+ * @mem_events: List of the supported mem events
+ */
+ struct perf_mem_event *mem_events;
};
/** @perf_pmu__fake: A special global PMU used for testing. */
--
2.35.1
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next prev parent reply other threads:[~2023-12-13 19:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-13 19:51 [PATCH V3 0/7] Clean up perf mem kan.liang
2023-12-13 19:51 ` kan.liang [this message]
2023-12-19 8:48 ` [PATCH V3 1/7] perf mem: Add mem_events into the supported perf_pmu kajoljain
2023-12-13 19:51 ` [PATCH V3 2/7] perf mem: Clean up perf_mem_events__ptr() kan.liang
2024-01-16 13:22 ` kajoljain
2023-12-13 19:51 ` [PATCH V3 3/7] perf mem: Clean up perf_mem_events__name() kan.liang
2024-01-16 13:58 ` kajoljain
2023-12-13 19:51 ` [PATCH V3 4/7] perf mem: Clean up perf_mem_event__supported() kan.liang
2023-12-13 19:51 ` [PATCH V3 5/7] perf mem: Clean up is_mem_loads_aux_event() kan.liang
2023-12-13 19:51 ` [PATCH V3 6/7] perf mem: Clean up perf_mem_events__record_args() kan.liang
2023-12-13 19:51 ` [PATCH V3 7/7] perf mem: Clean up perf_pmus__num_mem_pmus() kan.liang
2023-12-16 3:29 ` [PATCH V3 0/7] Clean up perf mem Leo Yan
2023-12-19 9:26 ` kajoljain
2023-12-19 14:15 ` Liang, Kan
2024-01-02 20:08 ` Liang, Kan
2024-01-05 6:38 ` kajoljain
2024-01-05 14:38 ` Liang, Kan
2024-01-16 14:05 ` kajoljain
2024-01-16 16:37 ` Liang, Kan
2024-01-23 5:30 ` kajoljain
2024-01-23 5:56 ` Thomas Richter
2024-01-23 14:36 ` Liang, Kan
2024-01-07 4:08 ` Leo Yan
2024-01-09 14:01 ` Liang, Kan
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