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Message-Id: <20231129060211.1890454-7-irogers@google.com>
Date: Tue, 28 Nov 2023 22:02:03 -0800
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Suzuki K Poulose <suzuki.poulose@....com>,
Mike Leach <mike.leach@...aro.org>,
James Clark <james.clark@....com>,
Leo Yan <leo.yan@...aro.org>,
John Garry <john.g.garry@...cle.com>,
Will Deacon <will@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Darren Hart <dvhart@...radead.org>,
Davidlohr Bueso <dave@...olabs.net>,
"André Almeida" <andrealmeid@...lia.com>,
Kan Liang <kan.liang@...ux.intel.com>,
K Prateek Nayak <kprateek.nayak@....com>,
Sean Christopherson <seanjc@...gle.com>,
Paolo Bonzini <pbonzini@...hat.com>,
Kajol Jain <kjain@...ux.ibm.com>,
Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
Andrew Jones <ajones@...tanamicro.com>,
Alexandre Ghiti <alexghiti@...osinc.com>,
Atish Patra <atishp@...osinc.com>,
"Steinar H. Gunderson" <sesse@...gle.com>,
Yang Jihong <yangjihong1@...wei.com>,
Yang Li <yang.lee@...ux.alibaba.com>,
Changbin Du <changbin.du@...wei.com>,
Sandipan Das <sandipan.das@....com>,
Ravi Bangoria <ravi.bangoria@....com>,
Paran Lee <p4ranlee@...il.com>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Huacai Chen <chenhuacai@...nel.org>,
Yanteng Si <siyanteng@...ngson.cn>,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
bpf@...r.kernel.org
Subject: [PATCH v1 06/14] libperf cpumap: Add any, empty and min helpers
Additional helpers to better replace
perf_cpu_map__has_any_cpu_or_is_empty.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/lib/perf/cpumap.c | 27 +++++++++++++++++++++++++++
tools/lib/perf/include/perf/cpumap.h | 16 ++++++++++++++++
tools/lib/perf/libperf.map | 4 ++++
3 files changed, 47 insertions(+)
diff --git a/tools/lib/perf/cpumap.c b/tools/lib/perf/cpumap.c
index 49fc98e16514..7403819da8fd 100644
--- a/tools/lib/perf/cpumap.c
+++ b/tools/lib/perf/cpumap.c
@@ -316,6 +316,19 @@ bool perf_cpu_map__has_any_cpu_or_is_empty(const struct perf_cpu_map *map)
return map ? __perf_cpu_map__cpu(map, 0).cpu == -1 : true;
}
+bool perf_cpu_map__is_any_cpu_or_is_empty(const struct perf_cpu_map *map)
+{
+ if (!map)
+ return true;
+
+ return __perf_cpu_map__nr(map) == 1 && __perf_cpu_map__cpu(map, 0).cpu == -1;
+}
+
+bool perf_cpu_map__is_empty(const struct perf_cpu_map *map)
+{
+ return map == NULL;
+}
+
int perf_cpu_map__idx(const struct perf_cpu_map *cpus, struct perf_cpu cpu)
{
int low, high;
@@ -372,6 +385,20 @@ bool perf_cpu_map__has_any_cpu(const struct perf_cpu_map *map)
return map && __perf_cpu_map__cpu(map, 0).cpu == -1;
}
+struct perf_cpu perf_cpu_map__min(const struct perf_cpu_map *map)
+{
+ struct perf_cpu cpu, result = {
+ .cpu = -1
+ };
+ int idx;
+
+ perf_cpu_map__for_each_cpu_skip_any(cpu, idx, map) {
+ result = cpu;
+ break;
+ }
+ return result;
+}
+
struct perf_cpu perf_cpu_map__max(const struct perf_cpu_map *map)
{
struct perf_cpu result = {
diff --git a/tools/lib/perf/include/perf/cpumap.h b/tools/lib/perf/include/perf/cpumap.h
index dbe0a7352b64..523e4348fc96 100644
--- a/tools/lib/perf/include/perf/cpumap.h
+++ b/tools/lib/perf/include/perf/cpumap.h
@@ -50,6 +50,22 @@ LIBPERF_API int perf_cpu_map__nr(const struct perf_cpu_map *cpus);
* perf_cpu_map__has_any_cpu_or_is_empty - is map either empty or has the "any CPU"/dummy value.
*/
LIBPERF_API bool perf_cpu_map__has_any_cpu_or_is_empty(const struct perf_cpu_map *map);
+/**
+ * perf_cpu_map__is_any_cpu_or_is_empty - is map either empty or the "any CPU"/dummy value.
+ */
+LIBPERF_API bool perf_cpu_map__is_any_cpu_or_is_empty(const struct perf_cpu_map *map);
+/**
+ * perf_cpu_map__is_empty - does the map contain no values and it doesn't
+ * contain the special "any CPU"/dummy value.
+ */
+LIBPERF_API bool perf_cpu_map__is_empty(const struct perf_cpu_map *map);
+/**
+ * perf_cpu_map__min - the minimum CPU value or -1 if empty or just the "any CPU"/dummy value.
+ */
+LIBPERF_API struct perf_cpu perf_cpu_map__min(const struct perf_cpu_map *map);
+/**
+ * perf_cpu_map__max - the maximum CPU value or -1 if empty or just the "any CPU"/dummy value.
+ */
LIBPERF_API struct perf_cpu perf_cpu_map__max(const struct perf_cpu_map *map);
LIBPERF_API bool perf_cpu_map__has(const struct perf_cpu_map *map, struct perf_cpu cpu);
LIBPERF_API bool perf_cpu_map__equal(const struct perf_cpu_map *lhs,
diff --git a/tools/lib/perf/libperf.map b/tools/lib/perf/libperf.map
index 10b3f3722642..2aa79b696032 100644
--- a/tools/lib/perf/libperf.map
+++ b/tools/lib/perf/libperf.map
@@ -10,6 +10,10 @@ LIBPERF_0.0.1 {
perf_cpu_map__nr;
perf_cpu_map__cpu;
perf_cpu_map__has_any_cpu_or_is_empty;
+ perf_cpu_map__is_any_cpu_or_is_empty;
+ perf_cpu_map__is_empty;
+ perf_cpu_map__has_any_cpu;
+ perf_cpu_map__min;
perf_cpu_map__max;
perf_cpu_map__has;
perf_thread_map__new_array;
--
2.43.0.rc1.413.gea7ed67945-goog
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