[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20220210224933.379149-49-yury.norov@gmail.com>
Date: Thu, 10 Feb 2022 14:49:32 -0800
From: Yury Norov <yury.norov@...il.com>
To: Yury Norov <yury.norov@...il.com>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Rasmus Villemoes <linux@...musvillemoes.dk>,
Andrew Morton <akpm@...ux-foundation.org>,
Michał Mirosław <mirq-linux@...e.qmqm.pl>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Peter Zijlstra <peterz@...radead.org>,
David Laight <David.Laight@...lab.com>,
Joe Perches <joe@...ches.com>, Dennis Zhou <dennis@...nel.org>,
Emil Renner Berthing <kernel@...il.dk>,
Nicholas Piggin <npiggin@...il.com>,
Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
Alexey Klimov <aklimov@...hat.com>,
linux-kernel@...r.kernel.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@...hat.com>,
Namhyung Kim <namhyung@...nel.org>,
Jin Yao <yao.jin@...ux.intel.com>,
John Garry <john.garry@...wei.com>,
Ian Rogers <irogers@...gle.com>,
Kan Liang <kan.liang@...ux.intel.com>,
linux-perf-users@...r.kernel.org
Subject: [PATCH 48/49] tools: bitmap: sync bitmap_weight
Pull bitmap_weight_{cmp,eq,gt,ge,lt,le} from mother kernel and
use where applicable.
Signed-off-by: Yury Norov <yury.norov@...il.com>
---
tools/include/linux/bitmap.h | 44 ++++++++++++++++++++++++++++++++++++
tools/lib/bitmap.c | 20 ++++++++++++++++
tools/perf/util/pmu.c | 2 +-
3 files changed, 65 insertions(+), 1 deletion(-)
diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h
index ea97804d04d4..29bf54996a84 100644
--- a/tools/include/linux/bitmap.h
+++ b/tools/include/linux/bitmap.h
@@ -12,6 +12,8 @@
unsigned long name[BITS_TO_LONGS(bits)]
int __bitmap_weight(const unsigned long *bitmap, int bits);
+int __bitmap_weight_cmp(const unsigned long *bitmap, unsigned int bits,
+ unsigned int num);
void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1,
const unsigned long *bitmap2, int bits);
int __bitmap_and(unsigned long *dst, const unsigned long *bitmap1,
@@ -68,6 +70,48 @@ static inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
return __bitmap_weight(src, nbits);
}
+static __always_inline
+int bitmap_weight_cmp(const unsigned long *src, unsigned int nbits, int num)
+{
+ if ((unsigned int)num > nbits)
+ return -num;
+
+ if (small_const_nbits(nbits))
+ return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits)) - num;
+
+ return __bitmap_weight_cmp(src, nbits, num);
+}
+
+static __always_inline
+bool bitmap_weight_eq(const unsigned long *src, unsigned int nbits, int num)
+{
+ return bitmap_weight_cmp(src, nbits, num) == 0;
+}
+
+static __always_inline
+bool bitmap_weight_gt(const unsigned long *src, unsigned int nbits, int num)
+{
+ return bitmap_weight_cmp(src, nbits, num) > 0;
+}
+
+static __always_inline
+bool bitmap_weight_ge(const unsigned long *src, unsigned int nbits, int num)
+{
+ return bitmap_weight_cmp(src, nbits, num - 1) > 0;
+}
+
+static __always_inline
+bool bitmap_weight_lt(const unsigned long *src, unsigned int nbits, int num)
+{
+ return bitmap_weight_cmp(src, nbits, num - 1) <= 0;
+}
+
+static __always_inline
+bool bitmap_weight_le(const unsigned long *src, unsigned int nbits, int num)
+{
+ return bitmap_weight_cmp(src, nbits, num) <= 0;
+}
+
static inline void bitmap_or(unsigned long *dst, const unsigned long *src1,
const unsigned long *src2, unsigned int nbits)
{
diff --git a/tools/lib/bitmap.c b/tools/lib/bitmap.c
index db466ef7be9d..06e58fee8523 100644
--- a/tools/lib/bitmap.c
+++ b/tools/lib/bitmap.c
@@ -18,6 +18,26 @@ int __bitmap_weight(const unsigned long *bitmap, int bits)
return w;
}
+int __bitmap_weight_cmp(const unsigned long *bitmap, unsigned int bits, int num)
+{
+ unsigned int k, w, lim = bits / BITS_PER_LONG;
+
+ for (k = 0, w = 0; k < lim; k++) {
+ if (w + bits - k * BITS_PER_LONG < num)
+ goto out;
+
+ w += hweight_long(bitmap[k]);
+
+ if (w > num)
+ goto out;
+ }
+
+ if (bits % BITS_PER_LONG)
+ w += hweight_long(bitmap[k] & BITMAP_LAST_WORD_MASK(bits));
+out:
+ return w - num;
+}
+
void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1,
const unsigned long *bitmap2, int bits)
{
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 8dfbba15aeb8..2c26cdd7f9b0 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1314,7 +1314,7 @@ static int pmu_config_term(const char *pmu_name,
*/
if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM) {
if (term->no_value &&
- bitmap_weight(format->bits, PERF_PMU_FORMAT_BITS) > 1) {
+ bitmap_weight_gt(format->bits, PERF_PMU_FORMAT_BITS, 1)) {
if (err) {
parse_events_error__handle(err, term->err_val,
strdup("no value assigned for term"),
--
2.32.0
Powered by blists - more mailing lists