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Date: Sat, 18 Dec 2021 13:20:12 -0800
From: Yury Norov <yury.norov@...il.com>
To: linux-kernel@...r.kernel.org, Yury Norov <yury.norov@...il.com>,
"James E.J. Bottomley" <jejb@...ux.ibm.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
Michał Mirosław <mirq-linux@...e.qmqm.pl>,
"Paul E. McKenney" <paulmck@...nel.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Alexey Klimov <aklimov@...hat.com>,
Amitkumar Karwar <amitkarwar@...il.com>,
Andi Kleen <ak@...ux.intel.com>, Andrew Lunn <andrew@...n.ch>,
Andrew Morton <akpm@...ux-foundation.org>,
Andy Gross <agross@...nel.org>,
Andy Lutomirski <luto@...nel.org>,
Andy Shevchenko <andy@...radead.org>,
Anup Patel <anup.patel@....com>,
Ard Biesheuvel <ardb@...nel.org>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Arnd Bergmann <arnd@...db.de>, Borislav Petkov <bp@...en8.de>,
Catalin Marinas <catalin.marinas@....com>,
Christoph Hellwig <hch@....de>,
Christoph Lameter <cl@...ux.com>,
Daniel Vetter <daniel@...ll.ch>,
Dave Hansen <dave.hansen@...ux.intel.com>,
David Airlie <airlied@...ux.ie>,
David Laight <David.Laight@...LAB.COM>,
Dennis Zhou <dennis@...nel.org>,
Emil Renner Berthing <kernel@...il.dk>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
Geetha sowjanya <gakula@...vell.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Guo Ren <guoren@...nel.org>,
Hans de Goede <hdegoede@...hat.com>,
Heiko Carstens <hca@...ux.ibm.com>,
Ian Rogers <irogers@...gle.com>,
Ingo Molnar <mingo@...hat.com>,
Jakub Kicinski <kuba@...nel.org>,
Jason Wessel <jason.wessel@...driver.com>,
Jens Axboe <axboe@...com>, Jiri Olsa <jolsa@...hat.com>,
Joe Perches <joe@...ches.com>,
Jonathan Cameron <jic23@...nel.org>,
Juri Lelli <juri.lelli@...hat.com>,
Kees Cook <keescook@...omium.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Lee Jones <lee.jones@...aro.org>,
Marc Zyngier <maz@...nel.org>, Marcin Wojtas <mw@...ihalf.com>,
Mark Gross <markgross@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Matti Vaittinen <mazziesaccount@...il.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Mel Gorman <mgorman@...e.de>,
Michael Ellerman <mpe@...erman.id.au>,
Mike Marciniszyn <mike.marciniszyn@...nelisnetworks.com>,
Nicholas Piggin <npiggin@...il.com>,
Palmer Dabbelt <palmer@...belt.com>,
Peter Zijlstra <peterz@...radead.org>,
Petr Mladek <pmladek@...e.com>,
Randy Dunlap <rdunlap@...radead.org>,
Rasmus Villemoes <linux@...musvillemoes.dk>,
Russell King <linux@...linux.org.uk>,
Saeed Mahameed <saeedm@...dia.com>,
Sagi Grimberg <sagi@...mberg.me>,
Sergey Senozhatsky <senozhatsky@...omium.org>,
Solomon Peachy <pizza@...ftnet.org>,
Stephen Boyd <sboyd@...nel.org>,
Stephen Rothwell <sfr@...b.auug.org.au>,
Steven Rostedt <rostedt@...dmis.org>,
Subbaraya Sundeep <sbhatta@...vell.com>,
Sudeep Holla <sudeep.holla@....com>,
Sunil Goutham <sgoutham@...vell.com>,
Tariq Toukan <tariqt@...dia.com>, Tejun Heo <tj@...nel.org>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Thomas Gleixner <tglx@...utronix.de>,
Ulf Hansson <ulf.hansson@...aro.org>,
Vincent Guittot <vincent.guittot@...aro.org>,
Vineet Gupta <vgupta@...nel.org>,
Viresh Kumar <viresh.kumar@...aro.org>,
Vivien Didelot <vivien.didelot@...il.com>,
Vlastimil Babka <vbabka@...e.cz>,
Will Deacon <will@...nel.org>,
bcm-kernel-feedback-list@...adcom.com, kvm@...r.kernel.org,
linux-alpha@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-crypto@...r.kernel.org, linux-csky@...r.kernel.org,
linux-ia64@...r.kernel.org, linux-mips@...r.kernel.org,
linux-mm@...ck.org, linux-perf-users@...r.kernel.org,
linux-riscv@...ts.infradead.org, linux-s390@...r.kernel.org,
linux-snps-arc@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 16/17] 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..e8ae9a85d555 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 (num > (int)nbits || num < 0)
+ 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 6ae58406f4fc..015ee1321c7c 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"),
--
2.30.2
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