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 4/7] perf mem: Clean up perf_mem_event__supported()
Date: Wed, 13 Dec 2023 11:51:51 -0800 [thread overview]
Message-ID: <20231213195154.1085945-5-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>
For some ARCHs, e.g., ARM and AMD, to get the availability of the
mem-events, perf checks the existence of a specific PMU. For the other
ARCHs, e.g., Intel and Power, perf has to check the existence of some
specific events.
The current perf only iterates the mem-events-supported PMUs. It's not
required to check the existence of a specific PMU anymore.
Rename sysfs_name to event_name, which stores the specific mem-events.
Perf only needs to check those events for the availability of the
mem-events.
Rename perf_mem_event__supported to perf_pmu__mem_events_supported.
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---
tools/perf/arch/arm64/util/mem-events.c | 8 ++++----
tools/perf/arch/powerpc/util/mem-events.c | 8 ++++----
tools/perf/arch/x86/util/mem-events.c | 20 ++++++++++----------
tools/perf/util/mem-events.c | 22 ++++++++++++----------
tools/perf/util/mem-events.h | 2 +-
5 files changed, 31 insertions(+), 29 deletions(-)
diff --git a/tools/perf/arch/arm64/util/mem-events.c b/tools/perf/arch/arm64/util/mem-events.c
index 96460c46640a..9f8da7937255 100644
--- a/tools/perf/arch/arm64/util/mem-events.c
+++ b/tools/perf/arch/arm64/util/mem-events.c
@@ -3,10 +3,10 @@
#include "util/mem-events.h"
#include "mem-events.h"
-#define E(t, n, s, l, a) { .tag = t, .name = n, .sysfs_name = s, .ldlat = l, .aux_event = a }
+#define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat = l, .aux_event = a }
struct perf_mem_event perf_mem_events_arm[PERF_MEM_EVENTS__MAX] = {
- E("spe-load", "%s/ts_enable=1,pa_enable=1,load_filter=1,store_filter=0,min_latency=%u/", "arm_spe_0", true, 0),
- E("spe-store", "%s/ts_enable=1,pa_enable=1,load_filter=0,store_filter=1/", "arm_spe_0", false, 0),
- E("spe-ldst", "%s/ts_enable=1,pa_enable=1,load_filter=1,store_filter=1,min_latency=%u/", "arm_spe_0", true, 0),
+ E("spe-load", "%s/ts_enable=1,pa_enable=1,load_filter=1,store_filter=0,min_latency=%u/", NULL, true, 0),
+ E("spe-store", "%s/ts_enable=1,pa_enable=1,load_filter=0,store_filter=1/", NULL, false, 0),
+ E("spe-ldst", "%s/ts_enable=1,pa_enable=1,load_filter=1,store_filter=1,min_latency=%u/", NULL, true, 0),
};
diff --git a/tools/perf/arch/powerpc/util/mem-events.c b/tools/perf/arch/powerpc/util/mem-events.c
index b7883e38950f..72a6ac2b52f5 100644
--- a/tools/perf/arch/powerpc/util/mem-events.c
+++ b/tools/perf/arch/powerpc/util/mem-events.c
@@ -2,10 +2,10 @@
#include "map_symbol.h"
#include "mem-events.h"
-#define E(t, n, s, l, a) { .tag = t, .name = n, .sysfs_name = s, .ldlat = l, .aux_event = a }
+#define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat = l, .aux_event = a }
struct perf_mem_event perf_mem_events_power[PERF_MEM_EVENTS__MAX] = {
- E("ldlat-loads", "%s/mem-loads/", "cpu/events/mem-loads", false, 0),
- E("ldlat-stores", "%s/mem-stores/", "cpu/events/mem-stores", false, 0),
- E(NULL, NULL, NULL, false, 0),
+ E("ldlat-loads", "%s/mem-loads/", "mem-loads", false, 0),
+ E("ldlat-stores", "%s/mem-stores/", "mem-stores", false, 0),
+ E(NULL, NULL, NULL, false, 0),
};
diff --git a/tools/perf/arch/x86/util/mem-events.c b/tools/perf/arch/x86/util/mem-events.c
index f0e66a0151a0..b776d849fc64 100644
--- a/tools/perf/arch/x86/util/mem-events.c
+++ b/tools/perf/arch/x86/util/mem-events.c
@@ -9,24 +9,24 @@
#define MEM_LOADS_AUX 0x8203
-#define E(t, n, s, l, a) { .tag = t, .name = n, .sysfs_name = s, .ldlat = l, .aux_event = a }
+#define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat = l, .aux_event = a }
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", true, 0),
- E("ldlat-stores", "%s/mem-stores/P", "%s/events/mem-stores", false, 0),
- E(NULL, NULL, NULL, false, 0),
+ E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "mem-loads", true, 0),
+ E("ldlat-stores", "%s/mem-stores/P", "mem-stores", false, 0),
+ E(NULL, NULL, NULL, false, 0),
};
struct perf_mem_event perf_mem_events_intel_aux[PERF_MEM_EVENTS__MAX] = {
- E("ldlat-loads", "{%s/mem-loads-aux/,%s/mem-loads,ldlat=%u/}:P", "%s/events/mem-loads", true, MEM_LOADS_AUX),
- E("ldlat-stores", "%s/mem-stores/P", "%s/events/mem-stores", false, 0),
- E(NULL, NULL, NULL, false, 0),
+ E("ldlat-loads", "{%s/mem-loads-aux/,%s/mem-loads,ldlat=%u/}:P", "mem-loads", true, MEM_LOADS_AUX),
+ E("ldlat-stores", "%s/mem-stores/P", "mem-stores", false, 0),
+ E(NULL, NULL, NULL, false, 0),
};
struct perf_mem_event perf_mem_events_amd[PERF_MEM_EVENTS__MAX] = {
- E(NULL, NULL, NULL, false, 0),
- E(NULL, NULL, NULL, false, 0),
- E("mem-ldst", "%s//", "ibs_op", false, 0),
+ E(NULL, NULL, NULL, false, 0),
+ E(NULL, NULL, NULL, false, 0),
+ E("mem-ldst", "%s//", NULL, false, 0),
};
bool is_mem_loads_aux_event(struct evsel *leader)
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index 51e53e33df03..32890848bb3d 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -17,12 +17,12 @@
unsigned int perf_mem_events__loads_ldlat = 30;
-#define E(t, n, s, l, a) { .tag = t, .name = n, .sysfs_name = s, .ldlat = l, .aux_event = a }
+#define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat = l, .aux_event = a }
struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = {
- E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "cpu/events/mem-loads", true, 0),
- E("ldlat-stores", "%s/mem-stores/P", "cpu/events/mem-stores", false, 0),
- E(NULL, NULL, NULL, false, 0),
+ E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "mem-loads", true, 0),
+ E("ldlat-stores", "%s/mem-stores/P", "mem-stores", false, 0),
+ E(NULL, NULL, NULL, false, 0),
};
#undef E
@@ -151,15 +151,17 @@ int perf_pmu__mem_events_parse(struct perf_pmu *pmu, const char *str)
return -1;
}
-static bool perf_mem_event__supported(const char *mnt, struct perf_pmu *pmu,
+static bool perf_pmu__mem_events_supported(const char *mnt, struct perf_pmu *pmu,
struct perf_mem_event *e)
{
- char sysfs_name[100];
char path[PATH_MAX];
struct stat st;
- scnprintf(sysfs_name, sizeof(sysfs_name), e->sysfs_name, pmu->name);
- scnprintf(path, PATH_MAX, "%s/devices/%s", mnt, sysfs_name);
+ if (!e->event_name)
+ return true;
+
+ scnprintf(path, PATH_MAX, "%s/devices/%s/events/%s", mnt, pmu->name, e->event_name);
+
return !stat(path, &st);
}
@@ -182,7 +184,7 @@ int perf_pmu__mem_events_init(struct perf_pmu *pmu)
if (!e->tag)
continue;
- e->supported |= perf_mem_event__supported(mnt, pmu, e);
+ e->supported |= perf_pmu__mem_events_supported(mnt, pmu, e);
if (e->supported)
found = true;
}
@@ -234,7 +236,7 @@ int perf_mem_events__record_args(const char **rec_argv, int *argv_nr,
} else {
const char *s = perf_pmu__mem_events_name(j, pmu);
- if (!perf_mem_event__supported(mnt, pmu, e))
+ if (!perf_pmu__mem_events_supported(mnt, pmu, e))
continue;
rec_argv[i++] = "-e";
diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index 79d342768d12..f817a507b106 100644
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -18,7 +18,7 @@ struct perf_mem_event {
u32 aux_event;
const char *tag;
const char *name;
- const char *sysfs_name;
+ const char *event_name;
};
struct mem_info {
--
2.35.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-12-13 19:53 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 ` [PATCH V3 1/7] perf mem: Add mem_events into the supported perf_pmu kan.liang
2023-12-19 8:48 ` 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 ` kan.liang [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20231213195154.1085945-5-kan.liang@linux.intel.com \
--to=kan.liang@linux.intel.com \
--cc=acme@kernel.org \
--cc=adrian.hunter@intel.com \
--cc=atrajeev@linux.vnet.ibm.com \
--cc=irogers@google.com \
--cc=james.clark@arm.com \
--cc=john.g.garry@oracle.com \
--cc=jolsa@kernel.org \
--cc=leo.yan@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=mike.leach@linaro.org \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=ravi.bangoria@amd.com \
--cc=renyu.zj@linux.alibaba.com \
--cc=tmricht@linux.ibm.com \
--cc=will@kernel.org \
--cc=yuhaixin.yhx@linux.alibaba.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).