diff options
37 files changed, 265 insertions, 227 deletions
diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c index f5aafdec7f50..c25bc1528b96 100644 --- a/tools/perf/arch/arm/util/cs-etm.c +++ b/tools/perf/arch/arm/util/cs-etm.c @@ -156,7 +156,7 @@ static int cs_etm_set_option(struct auxtrace_record *itr, { int i, err = -EINVAL; struct perf_cpu_map *event_cpus = evsel->evlist->cpus; - struct perf_cpu_map *online_cpus = cpu_map__new(NULL); + struct perf_cpu_map *online_cpus = perf_cpu_map__new(NULL); /* Set option of each CPU we have */ for (i = 0; i < cpu__max_cpu(); i++) { @@ -490,7 +490,7 @@ cs_etm_info_priv_size(struct auxtrace_record *itr __maybe_unused, int i; int etmv3 = 0, etmv4 = 0; struct perf_cpu_map *event_cpus = evlist->cpus; - struct perf_cpu_map *online_cpus = cpu_map__new(NULL); + struct perf_cpu_map *online_cpus = perf_cpu_map__new(NULL); /* cpu map is not empty, we have specific CPUs to work with */ if (!cpu_map__empty(event_cpus)) { @@ -637,7 +637,7 @@ static int cs_etm_info_fill(struct auxtrace_record *itr, u64 nr_cpu, type; struct perf_cpu_map *cpu_map; struct perf_cpu_map *event_cpus = session->evlist->cpus; - struct perf_cpu_map *online_cpus = cpu_map__new(NULL); + struct perf_cpu_map *online_cpus = perf_cpu_map__new(NULL); struct cs_etm_recording *ptr = container_of(itr, struct cs_etm_recording, itr); struct perf_pmu *cs_etm_pmu = ptr->cs_etm_pmu; diff --git a/tools/perf/arch/x86/tests/perf-time-to-tsc.c b/tools/perf/arch/x86/tests/perf-time-to-tsc.c index 07129e007eb0..261bdd680651 100644 --- a/tools/perf/arch/x86/tests/perf-time-to-tsc.c +++ b/tools/perf/arch/x86/tests/perf-time-to-tsc.c @@ -5,6 +5,7 @@ #include <unistd.h> #include <linux/types.h> #include <sys/prctl.h> +#include <perf/cpumap.h> #include "parse-events.h" #include "evlist.h" @@ -65,7 +66,7 @@ int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest __maybe threads = thread_map__new(-1, getpid(), UINT_MAX); CHECK_NOT_NULL__(threads); - cpus = cpu_map__new(NULL); + cpus = perf_cpu_map__new(NULL); CHECK_NOT_NULL__(cpus); evlist = evlist__new(); diff --git a/tools/perf/bench/epoll-ctl.c b/tools/perf/bench/epoll-ctl.c index 1fd724f1d48b..84658d45f349 100644 --- a/tools/perf/bench/epoll-ctl.c +++ b/tools/perf/bench/epoll-ctl.c @@ -20,6 +20,7 @@ #include <sys/resource.h> #include <sys/epoll.h> #include <sys/eventfd.h> +#include <perf/cpumap.h> #include "../util/stat.h" #include <subcmd/parse-options.h> @@ -315,7 +316,7 @@ int bench_epoll_ctl(int argc, const char **argv) act.sa_sigaction = toggle_done; sigaction(SIGINT, &act, NULL); - cpu = cpu_map__new(NULL); + cpu = perf_cpu_map__new(NULL); if (!cpu) goto errmem; diff --git a/tools/perf/bench/epoll-wait.c b/tools/perf/bench/epoll-wait.c index 79a254fff2d1..c27a65639cfb 100644 --- a/tools/perf/bench/epoll-wait.c +++ b/tools/perf/bench/epoll-wait.c @@ -75,6 +75,7 @@ #include <sys/epoll.h> #include <sys/eventfd.h> #include <sys/types.h> +#include <perf/cpumap.h> #include "../util/stat.h" #include <subcmd/parse-options.h> @@ -429,7 +430,7 @@ int bench_epoll_wait(int argc, const char **argv) act.sa_sigaction = toggle_done; sigaction(SIGINT, &act, NULL); - cpu = cpu_map__new(NULL); + cpu = perf_cpu_map__new(NULL); if (!cpu) goto errmem; diff --git a/tools/perf/bench/futex-hash.c b/tools/perf/bench/futex-hash.c index b4fea8e3a368..80e138904c66 100644 --- a/tools/perf/bench/futex-hash.c +++ b/tools/perf/bench/futex-hash.c @@ -20,6 +20,7 @@ #include <linux/kernel.h> #include <linux/zalloc.h> #include <sys/time.h> +#include <perf/cpumap.h> #include "../util/stat.h" #include <subcmd/parse-options.h> @@ -132,7 +133,7 @@ int bench_futex_hash(int argc, const char **argv) exit(EXIT_FAILURE); } - cpu = cpu_map__new(NULL); + cpu = perf_cpu_map__new(NULL); if (!cpu) goto errmem; diff --git a/tools/perf/bench/futex-lock-pi.c b/tools/perf/bench/futex-lock-pi.c index 596769924709..c5d6d0abbaa9 100644 --- a/tools/perf/bench/futex-lock-pi.c +++ b/tools/perf/bench/futex-lock-pi.c @@ -14,6 +14,7 @@ #include <linux/kernel.h> #include <linux/zalloc.h> #include <errno.h> +#include <perf/cpumap.h> #include "bench.h" #include "futex.h" #include "cpumap.h" @@ -156,7 +157,7 @@ int bench_futex_lock_pi(int argc, const char **argv) if (argc) goto err; - cpu = cpu_map__new(NULL); + cpu = perf_cpu_map__new(NULL); if (!cpu) err(EXIT_FAILURE, "calloc"); diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c index 1fd32a4f9c14..75d3418c1a88 100644 --- a/tools/perf/bench/futex-requeue.c +++ b/tools/perf/bench/futex-requeue.c @@ -20,6 +20,7 @@ #include <linux/kernel.h> #include <linux/time64.h> #include <errno.h> +#include <perf/cpumap.h> #include "bench.h" #include "futex.h" #include "cpumap.h" @@ -123,7 +124,7 @@ int bench_futex_requeue(int argc, const char **argv) if (argc) goto err; - cpu = cpu_map__new(NULL); + cpu = perf_cpu_map__new(NULL); if (!cpu) err(EXIT_FAILURE, "cpu_map__new"); diff --git a/tools/perf/bench/futex-wake-parallel.c b/tools/perf/bench/futex-wake-parallel.c index 884c73e5bd1b..163fe16c275a 100644 --- a/tools/perf/bench/futex-wake-parallel.c +++ b/tools/perf/bench/futex-wake-parallel.c @@ -237,7 +237,7 @@ int bench_futex_wake_parallel(int argc, const char **argv) act.sa_sigaction = toggle_done; sigaction(SIGINT, &act, NULL); - cpu = cpu_map__new(NULL); + cpu = perf_cpu_map__new(NULL); if (!cpu) err(EXIT_FAILURE, "calloc"); diff --git a/tools/perf/bench/futex-wake.c b/tools/perf/bench/futex-wake.c index 2288fa8412ff..77dcdc13618a 100644 --- a/tools/perf/bench/futex-wake.c +++ b/tools/perf/bench/futex-wake.c @@ -20,6 +20,7 @@ #include <linux/kernel.h> #include <linux/time64.h> #include <errno.h> +#include <perf/cpumap.h> #include "bench.h" #include "futex.h" #include "cpumap.h" @@ -131,7 +132,7 @@ int bench_futex_wake(int argc, const char **argv) exit(EXIT_FAILURE); } - cpu = cpu_map__new(NULL); + cpu = perf_cpu_map__new(NULL); if (!cpu) err(EXIT_FAILURE, "calloc"); diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c index 6943352b8d94..77989254fdd8 100644 --- a/tools/perf/builtin-ftrace.c +++ b/tools/perf/builtin-ftrace.c @@ -202,7 +202,7 @@ static int set_tracing_cpu(struct perf_ftrace *ftrace) static int reset_tracing_cpu(void) { - struct perf_cpu_map *cpumap = cpu_map__new(NULL); + struct perf_cpu_map *cpumap = perf_cpu_map__new(NULL); int ret; ret = set_tracing_cpumask(cpumap); diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index 897d11c8ca2e..0d6b4c3b1a51 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -3183,7 +3183,7 @@ static int setup_map_cpus(struct perf_sched *sched) if (!sched->map.cpus_str) return 0; - map = cpu_map__new(sched->map.cpus_str); + map = perf_cpu_map__new(sched->map.cpus_str); if (!map) { pr_err("failed to get cpus map from %s\n", sched->map.cpus_str); return -1; @@ -3217,7 +3217,7 @@ static int setup_color_cpus(struct perf_sched *sched) if (!sched->map.color_cpus_str) return 0; - map = cpu_map__new(sched->map.color_cpus_str); + map = perf_cpu_map__new(sched->map.color_cpus_str); if (!map) { pr_err("failed to get thread map from %s\n", sched->map.color_cpus_str); return -1; diff --git a/tools/perf/lib/cpumap.c b/tools/perf/lib/cpumap.c index f3cfb4c71106..a5d4f7ff7174 100644 --- a/tools/perf/lib/cpumap.c +++ b/tools/perf/lib/cpumap.c @@ -5,6 +5,10 @@ #include <internal/cpumap.h> #include <asm/bug.h> #include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <ctype.h> +#include <limits.h> struct perf_cpu_map *perf_cpu_map__dummy_new(void) { @@ -40,3 +44,183 @@ void perf_cpu_map__put(struct perf_cpu_map *map) if (map && refcount_dec_and_test(&map->refcnt)) cpu_map__delete(map); } + +static struct perf_cpu_map *cpu_map__default_new(void) +{ + struct perf_cpu_map *cpus; + int nr_cpus; + + nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); + if (nr_cpus < 0) + return NULL; + + cpus = malloc(sizeof(*cpus) + nr_cpus * sizeof(int)); + if (cpus != NULL) { + int i; + + for (i = 0; i < nr_cpus; ++i) + cpus->map[i] = i; + + cpus->nr = nr_cpus; + refcount_set(&cpus->refcnt, 1); + } + + return cpus; +} + +static struct perf_cpu_map *cpu_map__trim_new(int nr_cpus, int *tmp_cpus) +{ + size_t payload_size = nr_cpus * sizeof(int); + struct perf_cpu_map *cpus = malloc(sizeof(*cpus) + payload_size); + + if (cpus != NULL) { + cpus->nr = nr_cpus; + memcpy(cpus->map, tmp_cpus, payload_size); + refcount_set(&cpus->refcnt, 1); + } + + return cpus; +} + +struct perf_cpu_map *perf_cpu_map__read(FILE *file) +{ + struct perf_cpu_map *cpus = NULL; + int nr_cpus = 0; + int *tmp_cpus = NULL, *tmp; + int max_entries = 0; + int n, cpu, prev; + char sep; + + sep = 0; + prev = -1; + for (;;) { + n = fscanf(file, "%u%c", &cpu, &sep); + if (n <= 0) + break; + if (prev >= 0) { + int new_max = nr_cpus + cpu - prev - 1; + + if (new_max >= max_entries) { + max_entries = new_max + MAX_NR_CPUS / 2; + tmp = realloc(tmp_cpus, max_entries * sizeof(int)); + if (tmp == NULL) + goto out_free_tmp; + tmp_cpus = tmp; + } + + while (++prev < cpu) + tmp_cpus[nr_cpus++] = prev; + } + if (nr_cpus == max_entries) { + max_entries += MAX_NR_CPUS; + tmp = realloc(tmp_cpus, max_entries * sizeof(int)); + if (tmp == NULL) + goto out_free_tmp; + tmp_cpus = tmp; + } + + tmp_cpus[nr_cpus++] = cpu; + if (n == 2 && sep == '-') + prev = cpu; + else + prev = -1; + if (n == 1 || sep == '\n') + break; + } + + if (nr_cpus > 0) + cpus = cpu_map__trim_new(nr_cpus, tmp_cpus); + else + cpus = cpu_map__default_new(); +out_free_tmp: + free(tmp_cpus); + return cpus; +} + +static struct perf_cpu_map *cpu_map__read_all_cpu_map(void) +{ + struct perf_cpu_map *cpus = NULL; + FILE *onlnf; + + onlnf = fopen("/sys/devices/system/cpu/online", "r"); + if (!onlnf) + return cpu_map__default_new(); + + cpus = perf_cpu_map__read(onlnf); + fclose(onlnf); + return cpus; +} + +struct perf_cpu_map *perf_cpu_map__new(const char *cpu_list) +{ + struct perf_cpu_map *cpus = NULL; + unsigned long start_cpu, end_cpu = 0; + char *p = NULL; + int i, nr_cpus = 0; + int *tmp_cpus = NULL, *tmp; + int max_entries = 0; + + if (!cpu_list) + return cpu_map__read_all_cpu_map(); + + /* + * must handle the case of empty cpumap to cover + * TOPOLOGY header for NUMA nodes with no CPU + * ( e.g., because of CPU hotplug) + */ + if (!isdigit(*cpu_list) && *cpu_list != '\0') + goto out; + + while (isdigit(*cpu_list)) { + p = NULL; + start_cpu = strtoul(cpu_list, &p, 0); + if (start_cpu >= INT_MAX + || (*p != '\0' && *p != ',' && *p != '-')) + goto invalid; + + if (*p == '-') { + cpu_list = ++p; + p = NULL; + end_cpu = strtoul(cpu_list, &p, 0); + + if (end_cpu >= INT_MAX || (*p != '\0' && *p != ',')) + goto invalid; + + if (end_cpu < start_cpu) + goto invalid; + } else { + end_cpu = start_cpu; + } + + for (; start_cpu <= end_cpu; start_cpu++) { + /* check for duplicates */ + for (i = 0; i < nr_cpus; i++) + if (tmp_cpus[i] == (int)start_cpu) + goto invalid; + + if (nr_cpus == max_entries) { + max_entries += MAX_NR_CPUS; + tmp = realloc(tmp_cpus, max_entries * sizeof(int)); + if (tmp == NULL) + goto invalid; + tmp_cpus = tmp; + } + tmp_cpus[nr_cpus++] = (int)start_cpu; + } + if (*p) + ++p; + + cpu_list = p; + } + + if (nr_cpus > 0) + cpus = cpu_map__trim_new(nr_cpus, tmp_cpus); + else if (*cpu_list != '\0') + cpus = cpu_map__default_new(); + else + cpus = perf_cpu_map__dummy_new(); +invalid: + free(tmp_cpus); +out: + return cpus; +} diff --git a/tools/perf/lib/include/internal/cpumap.h b/tools/perf/lib/include/internal/cpumap.h index 53ce95374b05..3306319f7df8 100644 --- a/tools/perf/lib/include/internal/cpumap.h +++ b/tools/perf/lib/include/internal/cpumap.h @@ -10,4 +10,8 @@ struct perf_cpu_map { int map[]; }; +#ifndef MAX_NR_CPUS +#define MAX_NR_CPUS 2048 +#endif + #endif /* __LIBPERF_INTERNAL_CPUMAP_H */ diff --git a/tools/perf/lib/include/perf/cpumap.h b/tools/perf/lib/include/perf/cpumap.h index e16c2515a499..b4a9283a5dfa 100644 --- a/tools/perf/lib/include/perf/cpumap.h +++ b/tools/perf/lib/include/perf/cpumap.h @@ -3,10 +3,13 @@ #define __LIBPERF_CPUMAP_H #include <perf/core.h> +#include <stdio.h> struct perf_cpu_map; LIBPERF_API struct perf_cpu_map *perf_cpu_map__dummy_new(void); +LIBPERF_API struct perf_cpu_map *perf_cpu_map__new(const char *cpu_list); +LIBPERF_API struct perf_cpu_map *perf_cpu_map__read(FILE *file); LIBPERF_API struct perf_cpu_map *perf_cpu_map__get(struct perf_cpu_map *map); LIBPERF_API void perf_cpu_map__put(struct perf_cpu_map *map); diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map index 168339f89a2e..e38473a8f32f 100644 --- a/tools/perf/lib/libperf.map +++ b/tools/perf/lib/libperf.map @@ -4,6 +4,8 @@ LIBPERF_0.0.1 { perf_cpu_map__dummy_new; perf_cpu_map__get; perf_cpu_map__put; + perf_cpu_map__new; + perf_cpu_map__read; perf_thread_map__new_dummy; perf_thread_map__set_pid; perf_thread_map__comm; diff --git a/tools/perf/tests/bitmap.c b/tools/perf/tests/bitmap.c index 95304d29092e..db2aadff3708 100644 --- a/tools/perf/tests/bitmap.c +++ b/tools/perf/tests/bitmap.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/compiler.h> #include <linux/bitmap.h> +#include <perf/cpumap.h> #include "tests.h" #include "cpumap.h" #include "debug.h" @@ -9,7 +10,7 @@ static unsigned long *get_bitmap(const char *str, int nbits) { - struct perf_cpu_map *map = cpu_map__new(str); + struct perf_cpu_map *map = perf_cpu_map__new(str); unsigned long *bm = NULL; int i; diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c index 131bbeec62d2..bfaf22c2023c 100644 --- a/tools/perf/tests/code-reading.c +++ b/tools/perf/tests/code-reading.c @@ -8,6 +8,7 @@ #include <stdio.h> #include <string.h> #include <sys/param.h> +#include <perf/cpumap.h> #include "parse-events.h" #include "evlist.h" @@ -613,9 +614,9 @@ static int do_test_code_reading(bool try_kcore) goto out_put; } - cpus = cpu_map__new(NULL); + cpus = perf_cpu_map__new(NULL); if (!cpus) { - pr_debug("cpu_map__new failed\n"); + pr_debug("perf_cpu_map__new failed\n"); goto out_put; } diff --git a/tools/perf/tests/cpumap.c b/tools/perf/tests/cpumap.c index 6c921087b0fe..b71fe09a8087 100644 --- a/tools/perf/tests/cpumap.c +++ b/tools/perf/tests/cpumap.c @@ -5,6 +5,7 @@ #include "event.h" #include <string.h> #include <linux/bitops.h> +#include <perf/cpumap.h> #include "debug.h" struct machine; @@ -78,7 +79,7 @@ int test__cpu_map_synthesize(struct test *test __maybe_unused, int subtest __may struct perf_cpu_map *cpus; /* This one is better stores in mask. */ - cpus = cpu_map__new("0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19"); + cpus = perf_cpu_map__new("0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19"); TEST_ASSERT_VAL("failed to synthesize map", !perf_event__synthesize_cpu_map(NULL, cpus, process_event_mask, NULL)); @@ -86,7 +87,7 @@ int test__cpu_map_synthesize(struct test *test __maybe_unused, int subtest __may perf_cpu_map__put(cpus); /* This one is better stores in cpu values. */ - cpus = cpu_map__new("1,256"); + cpus = perf_cpu_map__new("1,256"); TEST_ASSERT_VAL("failed to synthesize map", !perf_event__synthesize_cpu_map(NULL, cpus, process_event_cpus, NULL)); @@ -97,7 +98,7 @@ int test__cpu_map_synthesize(struct test *test __maybe_unused, int subtest __may static int cpu_map_print(const char *str) { - struct perf_cpu_map *map = cpu_map__new(str); + struct perf_cpu_map *map = perf_cpu_map__new(str); char buf[100]; if (!map) diff --git a/tools/perf/tests/event-times.c b/tools/perf/tests/event-times.c index 165534f62036..00adba86403b 100644 --- a/tools/perf/tests/event-times.c +++ b/tools/perf/tests/event-times.c @@ -4,6 +4,7 @@ #include <inttypes.h> #include <string.h> #include <sys/wait.h> +#include <perf/cpumap.h> #include "tests.h" #include "evlist.h" #include "evsel.h" @@ -115,9 +116,9 @@ static int attach__cpu_disabled(struct evlist *evlist) pr_debug("attaching to CPU 0 as enabled\n"); - cpus = cpu_map__new("0"); + cpus = perf_cpu_map__new("0"); if (cpus == NULL) { - pr_debug("failed to call cpu_map__new\n"); + pr_debug("failed to call perf_cpu_map__new\n"); return -1; } @@ -144,9 +145,9 @@ static int attach__cpu_enabled(struct evlist *evlist) pr_debug("attaching to CPU 0 as enabled\n"); - cpus = cpu_map__new("0"); + cpus = perf_cpu_map__new("0"); if (cpus == NULL) { - pr_debug("failed to call cpu_map__new\n"); + pr_debug("failed to call perf_cpu_map__new\n"); return -1; } diff --git a/tools/perf/tests/event_update.c b/tools/perf/tests/event_update.c index 415d12e96834..2bc5145284c0 100644 --- a/tools/perf/tests/event_update.c +++ b/tools/perf/tests/event_update.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/compiler.h> +#include <perf/cpumap.h> #include "evlist.h" #include "evsel.h" #include "machine.h" @@ -108,7 +109,7 @@ int test__event_update(struct test *test __maybe_unused, int subtest __maybe_unu TEST_ASSERT_VAL("failed to synthesize attr update name", !perf_event__synthesize_event_update_name(&tmp.tool, evsel, process_event_name)); - evsel->own_cpus = cpu_map__new("1,2,3"); + evsel->own_cpus = perf_cpu_map__new("1,2,3"); TEST_ASSERT_VAL("failed to synthesize attr update cpus", !perf_event__synthesize_event_update_cpus(&tmp.tool, evsel, process_event_cpus)); diff --git a/tools/perf/tests/keep-tracking.c b/tools/perf/tests/keep-tracking.c index 4fc7b3b4e153..46478ba1ed16 100644 --- a/tools/perf/tests/keep-tracking.c +++ b/tools/perf/tests/keep-tracking.c @@ -2,6 +2,7 @@ #include <linux/types.h> #include <unistd.h> #include <sys/prctl.h> +#include <perf/cpumap.h> #include "parse-events.h" #include "evlist.h" @@ -75,7 +76,7 @@ int test__keep_tracking(struct test *test __maybe_unused, int subtest __maybe_un threads = thread_map__new(-1, getpid(), UINT_MAX); CHECK_NOT_NULL__(threads); - cpus = cpu_map__new(NULL); + cpus = perf_cpu_map__new(NULL); CHECK_NOT_NULL__(cpus); evlist = evlist__new(); diff --git a/tools/perf/tests/mem2node.c b/tools/perf/tests/mem2node.c index 6fe2c1e7918b..5ec193f7968d 100644 --- a/tools/perf/tests/mem2node.c +++ b/tools/perf/tests/mem2node.c @@ -2,6 +2,7 @@ #include <linux/compiler.h> #include <linux/bitmap.h> #include <linux/zalloc.h> +#include <perf/cpumap.h> #include "cpumap.h" #include "mem2node.h" #include "tests.h" @@ -19,7 +20,7 @@ static struct node { static unsigned long *get_bitmap(const char *str, int nbits) { - struct perf_cpu_map *map = cpu_map__new(str); + struct perf_cpu_map *map = perf_cpu_map__new(str); unsigned long *bm = NULL; int i; diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c index 9d8eb43b12cb..aa792aebd7f0 100644 --- a/tools/perf/tests/mmap-basic.c +++ b/tools/perf/tests/mmap-basic.c @@ -3,6 +3,7 @@ #include <inttypes.h> /* For the CLR_() macros */ #include <pthread.h> +#include <perf/cpumap.h> #include "evlist.h" #include "evsel.h" @@ -46,7 +47,7 @@ int test__basic_mmap(struct test *test __maybe_unused, int subtest __maybe_unuse return -1; } - cpus = cpu_map__new(NULL); + cpus = perf_cpu_map__new(NULL); if (cpus == NULL) { pr_debug("cpu_map__new\n"); goto out_free_threads; diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c index 674b0fa035ec..d161b1a78703 100644 --- a/tools/perf/tests/openat-syscall-all-cpus.c +++ b/tools/perf/tests/openat-syscall-all-cpus.c @@ -33,7 +33,7 @@ int test__openat_syscall_event_on_all_cpus(struct test *test __maybe_unused, int return -1; } - cpus = cpu_map__new(NULL); + cpus = perf_cpu_map__new(NULL); if (cpus == NULL) { pr_debug("cpu_map__new\n"); goto out_thread_map_delete; diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c index dd07acced4af..9e0bbea15005 100644 --- a/tools/perf/tests/switch-tracking.c +++ b/tools/perf/tests/switch-tracking.c @@ -5,6 +5,7 @@ #include <time.h> #include <stdlib.h> #include <linux/zalloc.h> +#include <perf/cpumap.h> #include "parse-events.h" #include "evlist.h" @@ -341,9 +342,9 @@ int test__switch_tracking(struct test *test __maybe_unused, int subtest __maybe_ goto out_err; } - cpus = cpu_map__new(NULL); + cpus = perf_cpu_map__new(NULL); if (!cpus) { - pr_debug("cpu_map__new failed!\n"); + pr_debug("perf_cpu_map__new failed!\n"); goto out_err; } diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c index 1b57ded58d59..a4f9f5182b47 100644 --- a/tools/perf/tests/topology.c +++ b/tools/perf/tests/topology.c @@ -2,6 +2,7 @@ #include <string.h> #include <stdlib.h> #include <stdio.h> +#include <perf/cpumap.h> #include "tests.h" #include "util.h" #include "session.h" @@ -126,7 +127,7 @@ int test__session_topology(struct test *test __maybe_unused, int subtest __maybe if (session_write_header(path)) goto free_path; - map = cpu_map__new(NULL); + map = perf_cpu_map__new(NULL); if (map == NULL) { pr_debug("failed to get system cpumap\n"); goto free_path; diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c index 44082e5eabde..71d4d7b35a57 100644 --- a/tools/perf/util/cpumap.c +++ b/tools/perf/util/cpumap.c @@ -17,185 +17,6 @@ static int max_present_cpu_num; static int max_node_num; static int *cpunode_map; -static struct perf_cpu_map *cpu_map__default_new(void) -{ - struct perf_cpu_map *cpus; - int nr_cpus; - - nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); - if (nr_cpus < 0) - return NULL; - - cpus = malloc(sizeof(*cpus) + nr_cpus * sizeof(int)); - if (cpus != NULL) { - int i; - for (i = 0; i < nr_cpus; ++i) - cpus->map[i] = i; - - cpus->nr = nr_cpus; - refcount_set(&cpus->refcnt, 1); - } - - return cpus; -} - -static struct perf_cpu_map *cpu_map__trim_new(int nr_cpus, int *tmp_cpus) -{ - size_t payload_size = nr_cpus * sizeof(int); - struct perf_cpu_map *cpus = malloc(sizeof(*cpus) + payload_size); - - if (cpus != NULL) { - cpus->nr = nr_cpus; - memcpy(cpus->map, tmp_cpus, payload_size); - refcount_set(&cpus->refcnt, 1); - } - - return cpus; -} - -struct perf_cpu_map *cpu_map__read(FILE *file) -{ - struct perf_cpu_map *cpus = NULL; - int nr_cpus = 0; - int *tmp_cpus = NULL, *tmp; - int max_entries = 0; - int n, cpu, prev; - char sep; - - sep = 0; - prev = -1; - for (;;) { - n = fscanf(file, "%u%c", &cpu, &sep); - if (n <= 0) - break; - if (prev >= 0) { - int new_max = nr_cpus + cpu - prev - 1; - - if (new_max >= max_entries) { - max_entries = new_max + MAX_NR_CPUS / 2; - tmp = realloc(tmp_cpus, max_entries * sizeof(int)); - if (tmp == NULL) - goto out_free_tmp; - tmp_cpus = tmp; - } - - while (++prev < cpu) - tmp_cpus[nr_cpus++] = prev; - } - if (nr_cpus == max_entries) { - max_entries += MAX_NR_CPUS; - tmp = realloc(tmp_cpus, max_entries * sizeof(int)); - if (tmp == NULL) - goto out_free_tmp; - tmp_cpus = tmp; - |