From: Kajol Jain <kjain@linux.ibm.com>
To: mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, peterz@infradead.org,
mingo@redhat.com, acme@kernel.org, jolsa@kernel.org,
namhyung@kernel.org, ak@linux.intel.com
Cc: linux-perf-users@vger.kernel.org, maddy@linux.ibm.com,
atrajeev@linux.vnet.ibm.com, rnsastry@linux.ibm.com,
yao.jin@linux.intel.com, ast@kernel.org, daniel@iogearbox.net,
songliubraving@fb.com, kan.liang@linux.intel.com,
mark.rutland@arm.com, alexander.shishkin@linux.intel.com,
paulus@samba.org, kjain@linux.ibm.com
Subject: [PATCH v3 1/4] perf: Add comment about current state of PERF_MEM_LVL_* namespace and remove an extra line
Date: Wed, 6 Oct 2021 19:36:51 +0530 [thread overview]
Message-ID: <20211006140654.298352-2-kjain@linux.ibm.com> (raw)
In-Reply-To: <20211006140654.298352-1-kjain@linux.ibm.com>
Add a comment about PERF_MEM_LVL_* namespace being depricated
to some extent in favour of added PERF_MEM_{LVLNUM_,REMOTE_,SNOOPX_}
fields.
Remove an extra line present in perf_mem__lvl_scnprintf function.
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
---
include/uapi/linux/perf_event.h | 8 +++++++-
tools/include/uapi/linux/perf_event.h | 8 +++++++-
tools/perf/util/mem-events.c | 1 -
3 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index f92880a15645..e1701e9c7858 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -1241,7 +1241,13 @@ union perf_mem_data_src {
#define PERF_MEM_OP_EXEC 0x10 /* code (execution) */
#define PERF_MEM_OP_SHIFT 0
-/* memory hierarchy (memory level, hit or miss) */
+/*
+ * PERF_MEM_LVL_* namespace being depricated to some extent in the
+ * favour of newer composite PERF_MEM_{LVLNUM_,REMOTE_,SNOOPX_} fields.
+ * Supporting this namespace inorder to not break defined ABIs.
+ *
+ * memory hierarchy (memory level, hit or miss)
+ */
#define PERF_MEM_LVL_NA 0x01 /* not available */
#define PERF_MEM_LVL_HIT 0x02 /* hit level */
#define PERF_MEM_LVL_MISS 0x04 /* miss level */
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index f92880a15645..e1701e9c7858 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -1241,7 +1241,13 @@ union perf_mem_data_src {
#define PERF_MEM_OP_EXEC 0x10 /* code (execution) */
#define PERF_MEM_OP_SHIFT 0
-/* memory hierarchy (memory level, hit or miss) */
+/*
+ * PERF_MEM_LVL_* namespace being depricated to some extent in the
+ * favour of newer composite PERF_MEM_{LVLNUM_,REMOTE_,SNOOPX_} fields.
+ * Supporting this namespace inorder to not break defined ABIs.
+ *
+ * memory hierarchy (memory level, hit or miss)
+ */
#define PERF_MEM_LVL_NA 0x01 /* not available */
#define PERF_MEM_LVL_HIT 0x02 /* hit level */
#define PERF_MEM_LVL_MISS 0x04 /* miss level */
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index f0e75df72b80..ff7289e28192 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -320,7 +320,6 @@ int perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
/* already taken care of */
m &= ~(PERF_MEM_LVL_HIT|PERF_MEM_LVL_MISS);
-
if (mem_info && mem_info->data_src.mem_remote) {
strcat(out, "Remote ");
l += 7;
--
2.26.2
next prev parent reply other threads:[~2021-10-06 14:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-06 14:06 [PATCH v3 0/4] Add mem_hops field in perf_mem_data_src structure Kajol Jain
2021-10-06 14:06 ` Kajol Jain [this message]
2021-10-19 15:35 ` [tip: perf/core] perf: Add comment about current state of PERF_MEM_LVL_* namespace and remove an extra line tip-bot2 for Kajol Jain
2021-10-06 14:06 ` [PATCH v3 2/4] perf: Add mem_hops field in perf_mem_data_src structure Kajol Jain
2021-10-19 15:35 ` [tip: perf/core] " tip-bot2 for Kajol Jain
2021-10-06 14:06 ` [PATCH v3 3/4] tools/perf: " Kajol Jain
2021-10-19 15:35 ` [tip: perf/core] " tip-bot2 for Kajol Jain
2021-10-06 14:06 ` [PATCH v3 4/4] powerpc/perf: Fix data source encodings for L2.1 and L3.1 accesses Kajol Jain
2021-10-19 15:35 ` [tip: perf/core] " tip-bot2 for Kajol Jain
2021-10-07 6:49 ` [PATCH v3 0/4] Add mem_hops field in perf_mem_data_src structure Peter Zijlstra
2021-10-18 3:46 ` Michael Ellerman
2021-10-18 9:48 ` Peter Zijlstra
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