Files
erofs-linux/tools/perf/tests/bitmap.c
T
Ian Rogers 71bc3ac8e8 perf cpumap: Use perf_cpu_map__for_each_cpu when possible
Rather than manually iterating the CPU map, use
perf_cpu_map__for_each_cpu(). When possible tidy local variables.

Reviewed-by: James Clark <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andrew Jones <[email protected]>
Cc: André Almeida <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Atish Patra <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Darren Hart <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: K Prateek Nayak <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Paran Lee <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Sandipan Das <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Steinar H. Gunderson <[email protected]>
Cc: Suzuki Poulouse <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Yang Jihong <[email protected]>
Cc: Yang Li <[email protected]>
Cc: Yanteng Si <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2024-03-21 10:41:28 -03:00

57 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/compiler.h>
#include <linux/bitmap.h>
#include <perf/cpumap.h>
#include <internal/cpumap.h>
#include "tests.h"
#include "debug.h"
#define NBITS 100
static unsigned long *get_bitmap(const char *str, int nbits)
{
struct perf_cpu_map *map = perf_cpu_map__new(str);
unsigned long *bm;
bm = bitmap_zalloc(nbits);
if (map && bm) {
int i;
struct perf_cpu cpu;
perf_cpu_map__for_each_cpu(cpu, i, map)
__set_bit(cpu.cpu, bm);
}
perf_cpu_map__put(map);
return bm;
}
static int test_bitmap(const char *str)
{
unsigned long *bm = get_bitmap(str, NBITS);
char buf[100];
int ret;
bitmap_scnprintf(bm, NBITS, buf, sizeof(buf));
pr_debug("bitmap: %s\n", buf);
ret = !strcmp(buf, str);
free(bm);
return ret;
}
static int test__bitmap_print(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
{
TEST_ASSERT_VAL("failed to convert map", test_bitmap("1"));
TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,5"));
TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3,5,7,9,11,13,15,17,19,21-40"));
TEST_ASSERT_VAL("failed to convert map", test_bitmap("2-5"));
TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3-6,8-10,24,35-37"));
TEST_ASSERT_VAL("failed to convert map", test_bitmap("1,3-6,8-10,24,35-37"));
TEST_ASSERT_VAL("failed to convert map", test_bitmap("1-10,12-20,22-30,32-40"));
return 0;
}
DEFINE_SUITE("Print bitmap", bitmap_print);