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/kernel/linux/linux-5.10/kernel/sched/
Dsched_avg.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2012, 2015-2021, The Linux Foundation. All rights reserved.
21 static DEFINE_PER_CPU(u64, nr);
43 int cpu; in sched_get_nr_running_avg() local
45 u64 period = curr_time - last_get_time; in sched_get_nr_running_avg()
52 for_each_possible_cpu(cpu) { in sched_get_nr_running_avg()
56 spin_lock_irqsave(&per_cpu(nr_lock, cpu), flags); in sched_get_nr_running_avg()
58 diff = curr_time - per_cpu(last_time, cpu); in sched_get_nr_running_avg()
61 tmp_nr = per_cpu(nr_prod_sum, cpu); in sched_get_nr_running_avg()
62 tmp_nr += per_cpu(nr, cpu) * diff; in sched_get_nr_running_avg()
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/kernel/linux/linux-5.10/tools/perf/util/
Dcpumap.c1 // SPDX-License-Identifier: GPL-2.0
25 map = perf_cpu_map__empty_new(cpus->nr); in cpu_map__from_entries()
29 for (i = 0; i < cpus->nr; i++) { in cpu_map__from_entries()
31 * Special treatment for -1, which is not real cpu number, in cpu_map__from_entries()
32 * and we need to use (int) -1 to initialize map[i], in cpu_map__from_entries()
35 if (cpus->cpu[i] == (u16) -1) in cpu_map__from_entries()
36 map->map[i] = -1; in cpu_map__from_entries()
38 map->map[i] = (int) cpus->cpu[i]; in cpu_map__from_entries()
48 int nr, nbits = mask->nr * mask->long_size * BITS_PER_BYTE; in cpu_map__from_mask() local
50 nr = bitmap_weight(mask->mask, nbits); in cpu_map__from_mask()
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Dcputopo.c1 // SPDX-License-Identifier: GPL-2.0
17 "%s/devices/system/cpu/cpu%d/topology/core_siblings_list"
19 "%s/devices/system/cpu/cpu%d/topology/die_cpus_list"
21 "%s/devices/system/cpu/cpu%d/topology/thread_siblings_list"
23 "%s/devices/system/cpu/cpu%d/topology/core_cpus_list"
31 static int build_cpu_topology(struct cpu_topology *tp, int cpu) in build_cpu_topology() argument
39 int ret = -1; in build_cpu_topology()
42 sysfs__mountpoint(), cpu); in build_cpu_topology()
56 for (i = 0; i < tp->core_sib; i++) { in build_cpu_topology()
57 if (!strcmp(buf, tp->core_siblings[i])) in build_cpu_topology()
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Dthread-stack.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * thread-stack.c: Synthesize a thread's stack using call / return events
21 #include "call-path.h"
22 #include "thread-stack.h"
40 * struct thread_stack_entry - thread stack entry.
47 * @db_id: id used for db-export
68 * struct thread_stack - thread stack constructed from 'call' and 'return'
110 * perf_session__register_idle_thread(). The idle task is really 1 task per cpu,
111 * and therefore requires a stack for each cpu.
115 return !(thread->tid || thread->pid_); in thread_stack__per_cpu()
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Dstat-display.c27 if (config->csv_output) { in print_running()
28 fprintf(config->output, "%s%" PRIu64 "%s%.2f", in print_running()
29 config->csv_sep, in print_running()
31 config->csv_sep, in print_running()
34 fprintf(config->output, " (%.2f%%)", 100.0 * run / ena); in print_running()
43 if (config->csv_output) in print_noise_pct()
44 fprintf(config->output, "%s%.2f%%", config->csv_sep, pct); in print_noise_pct()
46 fprintf(config->output, " ( +-%6.2f%% )", pct); in print_noise_pct()
54 if (config->run_count == 1) in print_noise()
57 ps = evsel->stats; in print_noise()
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/kernel/linux/linux-5.10/arch/mips/sgi-ip27/
Dip27-nmi.c1 // SPDX-License-Identifier: GPL-2.0
42 if (nmi_addr->call_addr) in install_cpu_nmi_handler()
44 nmi_addr->magic = NMI_MAGIC; in install_cpu_nmi_handler()
45 nmi_addr->call_addr = (void *)nmi_dump; in install_cpu_nmi_handler()
46 nmi_addr->call_addr_c = in install_cpu_nmi_handler()
47 (void *)(~((unsigned long)(nmi_addr->call_addr))); in install_cpu_nmi_handler()
48 nmi_addr->call_parm = 0; in install_cpu_nmi_handler()
52 * Copy the cpu registers which have been saved in the IP27prom format
58 struct reg_struct *nr; in nmi_cpu_eframe_save() local
61 /* Get the pointer to the current cpu's register set. */ in nmi_cpu_eframe_save()
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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/powerpc/
Dibm,powerpc-cpu-features.txt3 (skiboot/doc/device-tree/ibm,powerpc-cpu-features/binding.txt)
9 ibm,powerpc-cpu-features binding
12 This device tree binding describes CPU features available to software, with
19 /cpus/ibm,powerpc-cpu-features node binding
20 -------------------------------------------
22 Node: ibm,powerpc-cpu-features
24 Description: Container of CPU feature nodes.
26 The node name must be "ibm,powerpc-cpu-features".
35 - compatible
38 Definition: "ibm,powerpc-cpu-features"
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/kernel/linux/linux-5.10/arch/powerpc/platforms/85xx/
Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright 2006-2008, 2011-2012, 2015 Freescale Semiconductor Inc.
17 #include <linux/cpu.h>
26 #include <asm/code-patching.h>
58 qoriq_pm_ops->freeze_time_base(true); in mpc85xx_give_timebase()
61 * e5500/e6500 have a workaround for erratum A-006958 in place in mpc85xx_give_timebase()
62 * that will reread the timebase until TBL is non-zero. in mpc85xx_give_timebase()
66 * TBL is non-zero, we ensure that TB does not change. We don't in mpc85xx_give_timebase()
91 qoriq_pm_ops->freeze_time_base(false); in mpc85xx_give_timebase()
117 unsigned int cpu = smp_processor_id(); in smp_85xx_cpu_offline_self() local
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/kernel/linux/linux-5.10/arch/powerpc/platforms/powernv/
Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
17 #include <linux/cpu.h>
31 #include <asm/code-patching.h>
34 #include <asm/ppc-opcode.h>
49 static void pnv_smp_setup_cpu(int cpu) in pnv_smp_setup_cpu() argument
60 else if (cpu != boot_cpuid) in pnv_smp_setup_cpu()
64 static int pnv_smp_kick_cpu(int nr) in pnv_smp_kick_cpu() argument
72 if (nr < 0 || nr >= nr_cpu_ids) in pnv_smp_kick_cpu()
73 return -EINVAL; in pnv_smp_kick_cpu()
75 pcpu = get_hard_smp_processor_id(nr); in pnv_smp_kick_cpu()
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/kernel/linux/linux-5.10/tools/perf/tests/
Dcpumap.c1 // SPDX-License-Identifier: GPL-2.0
6 #include "util/synthetic-events.h"
19 struct perf_record_cpu_map *map_event = &event->cpu_map; in process_event_mask()
25 data = &map_event->data; in process_event_mask()
27 TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__MASK); in process_event_mask()
29 mask = (struct perf_record_record_cpu_map *)data->data; in process_event_mask()
31 TEST_ASSERT_VAL("wrong nr", mask->nr == 1); in process_event_mask()
34 TEST_ASSERT_VAL("wrong cpu", test_bit(i, mask->mask)); in process_event_mask()
38 TEST_ASSERT_VAL("wrong nr", map->nr == 20); in process_event_mask()
41 TEST_ASSERT_VAL("wrong cpu", map->map[i] == i); in process_event_mask()
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Dopenat-syscall-all-cpus.c1 // SPDX-License-Identifier: GPL-2.0
25 int err = -1, fd, cpu; in test__openat_syscall_event_on_all_cpus() local
30 struct perf_thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); in test__openat_syscall_event_on_all_cpus()
36 return -1; in test__openat_syscall_event_on_all_cpus()
61 for (cpu = 0; cpu < cpus->nr; ++cpu) { in test__openat_syscall_event_on_all_cpus()
62 unsigned int ncalls = nr_openat_calls + cpu; in test__openat_syscall_event_on_all_cpus()
67 * a reasonable upper limit tho :-) in test__openat_syscall_event_on_all_cpus()
69 if (cpus->map[cpu] >= CPU_SETSIZE) { in test__openat_syscall_event_on_all_cpus()
70 pr_debug("Ignoring CPU %d\n", cpus->map[cpu]); in test__openat_syscall_event_on_all_cpus()
74 CPU_SET(cpus->map[cpu], &cpu_set); in test__openat_syscall_event_on_all_cpus()
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Dswitch-tracking.c1 // SPDX-License-Identifier: GPL-2.0
14 #include "parse-events.h"
72 union perf_event *event, const char *comm, int nr) in check_comm() argument
74 if (event->header.type == PERF_RECORD_COMM && in check_comm()
75 (pid_t)event->comm.pid == getpid() && in check_comm()
76 (pid_t)event->comm.tid == getpid() && in check_comm()
77 strcmp(event->comm.comm, comm) == 0) { in check_comm()
78 if (switch_tracking->comm_seen[nr]) { in check_comm()
80 return -1; in check_comm()
82 switch_tracking->comm_seen[nr] = 1; in check_comm()
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/kernel/linux/linux-5.10/tools/testing/selftests/vm/
Duserfaultfd.c1 // SPDX-License-Identifier: GPL-2.0-only
11 * There are three threads running per CPU:
13 * 1) one per-CPU thread takes a per-page pthread_mutex in a random
15 * area_src), and increments a per-page counter in the same page,
18 * 2) another per-CPU thread handles the userfaults generated by
22 * 3) one last per-CPU thread transfers the memory in the background
24 * 2). Each cpu thread takes cares of transferring a portion of the
32 * per-CPU threads 1 by triggering userfaults inside
81 /* Whether to test uffd write-protection */
95 int cpu; member
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/kernel/linux/linux-5.10/arch/powerpc/platforms/86xx/
Dmpc86xx_smp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
15 #include <asm/code-patching.h>
17 #include <asm/pci-bridge.h>
35 smp_86xx_release_core(int nr) in smp_86xx_release_core() argument
40 if (nr < 0 || nr >= NR_CPUS) in smp_86xx_release_core()
44 * Startup Core #nr. in smp_86xx_release_core()
49 pcr |= 1 << (nr + 24); in smp_86xx_release_core()
57 smp_86xx_kick_cpu(int nr) in smp_86xx_kick_cpu() argument
64 if (nr < 0 || nr >= NR_CPUS) in smp_86xx_kick_cpu()
65 return -ENOENT; in smp_86xx_kick_cpu()
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/kernel/linux/linux-5.10/tools/lib/perf/
Dcpumap.c1 // SPDX-License-Identifier: GPL-2.0-only
18 cpus->nr = 1; in perf_cpu_map__dummy_new()
19 cpus->map[0] = -1; in perf_cpu_map__dummy_new()
20 refcount_set(&cpus->refcnt, 1); in perf_cpu_map__dummy_new()
29 WARN_ONCE(refcount_read(&map->refcnt) != 0, in cpu_map__delete()
38 refcount_inc(&map->refcnt); in perf_cpu_map__get()
44 if (map && refcount_dec_and_test(&map->refcnt)) in perf_cpu_map__put()
62 cpus->map[i] = i; in cpu_map__default_new()
64 cpus->nr = nr_cpus; in cpu_map__default_new()
65 refcount_set(&cpus->refcnt, 1); in cpu_map__default_new()
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Devsel.c1 // SPDX-License-Identifier: GPL-2.0
21 INIT_LIST_HEAD(&evsel->node); in perf_evsel__init()
22 evsel->attr = *attr; in perf_evsel__init()
40 #define FD(e, x, y) (*(int *) xyarray__entry(e->fd, x, y))
44 evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int)); in perf_evsel__alloc_fd()
46 if (evsel->fd) { in perf_evsel__alloc_fd()
47 int cpu, thread; in perf_evsel__alloc_fd() local
48 for (cpu = 0; cpu < ncpus; cpu++) { in perf_evsel__alloc_fd()
50 FD(evsel, cpu, thread) = -1; in perf_evsel__alloc_fd()
55 return evsel->fd != NULL ? 0 : -ENOMEM; in perf_evsel__alloc_fd()
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/kernel/linux/linux-5.10/arch/powerpc/include/asm/
Dsmp.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * smp.h: PowerPC-specific SMP code.
9 * Copyright (C) 1996-2001 Cort Dougan <cort@fsmlabs.com>
33 extern int cpu_to_chip_id(int cpu);
38 void (*message_pass)(int cpu, int msg);
40 void (*cause_ipi)(int cpu);
42 int (*cause_nmi_ipi)(int cpu);
44 int (*kick_cpu)(int nr);
45 int (*prepare_cpu)(int nr);
46 void (*setup_cpu)(int nr);
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/kernel/linux/linux-5.10/tools/perf/Documentation/
Dperf.data-file-format.txt5 This document describes the on-disk perf.data format, generated by perf record
10 All fields are in native-endian of the machine that generated the perf.data.
14 format is described in "Pipe-mode data" section. The pipe data version can be
33 magic value is 64bit byte swapped compared the file is in non-native
61 uint32_t nr;
62 struct perf_header_string strings[nr]; /* variable length records */
85 char filename[header.size - offsetof(struct build_id_event, filename)];
91 (uname -n)
96 (uname -r)
106 A perf_header_string with the CPU architecture (uname -m)
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/kernel/linux/linux-5.10/arch/x86/include/asm/
Dbitops.h1 /* SPDX-License-Identifier: GPL-2.0 */
32 * These have to be done with inline assembly: that way the bit-setting
48 #define CONST_MASK_ADDR(nr, addr) WBYTE_ADDR((void *)(addr) + ((nr)>>3)) argument
49 #define CONST_MASK(nr) (1 << ((nr) & 7)) argument
52 arch_set_bit(long nr, volatile unsigned long *addr) in arch_set_bit() argument
54 if (__builtin_constant_p(nr)) { in arch_set_bit()
56 : CONST_MASK_ADDR(nr, addr) in arch_set_bit()
57 : "iq" (CONST_MASK(nr)) in arch_set_bit()
61 : : RLONG_ADDR(addr), "Ir" (nr) : "memory"); in arch_set_bit()
66 arch___set_bit(long nr, volatile unsigned long *addr) in arch___set_bit() argument
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/kernel/linux/linux-5.10/mm/
Dswap_slots.c1 // SPDX-License-Identifier: GPL-2.0
11 * it into local per cpu caches. This has the advantage
31 #include <linux/cpu.h>
68 /* Must not be called with cpu hot plug lock */
74 /* serialize with cpu hotplug operations */ in disable_swap_slots_cache_lock()
114 static int alloc_swap_slot_cache(unsigned int cpu) in alloc_swap_slot_cache() argument
127 return -ENOMEM; in alloc_swap_slot_cache()
133 return -ENOMEM; in alloc_swap_slot_cache()
137 cache = &per_cpu(swp_slots, cpu); in alloc_swap_slot_cache()
138 if (cache->slots || cache->slots_ret) { in alloc_swap_slot_cache()
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/kernel/linux/linux-5.10/include/xen/
Dxen-ops.h1 /* SPDX-License-Identifier: GPL-2.0 */
15 static inline uint32_t xen_vcpu_nr(int cpu) in xen_vcpu_nr() argument
17 return per_cpu(xen_vcpu_id, cpu); in xen_vcpu_nr()
35 void xen_setup_runstate_info(int cpu);
39 u64 xen_steal_clock(int cpu);
66 xen_pfn_t *pfn, int nr, int *err_ptr, pgprot_t prot,
70 xen_pfn_t *pfn, int nr, int *err_ptr, in xen_remap_pfn() argument
84 xen_pfn_t *gfn, int nr,
89 int nr, struct page **pages);
97 xen_pfn_t *gfn, int nr, in xen_xlate_remap_gfn_array() argument
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/kernel/linux/linux-5.10/drivers/macintosh/
Dwindfarm_smu_sat.c1 // SPDX-License-Identifier: GPL-2.0-only
29 int nr; member
60 /* TODO: Add the resulting partition to the device-tree */ in smu_sat_get_sdb_partition()
65 err = i2c_smbus_write_word_data(sat->i2c, 8, id << 8); in smu_sat_get_sdb_partition()
71 err = i2c_smbus_read_word_data(sat->i2c, 9); in smu_sat_get_sdb_partition()
89 err = i2c_smbus_read_i2c_block_data(sat->i2c, 0xa, 4, data); in smu_sat_get_sdb_partition()
119 err = i2c_smbus_read_i2c_block_data(sat->i2c, 0x3f, 16, sat->cache); in wf_sat_read_cache()
122 sat->last_read = jiffies; in wf_sat_read_cache()
129 16, 1, sat->cache, 16, false); in wf_sat_read_cache()
138 struct wf_sat *sat = sens->sat; in wf_sat_sensor_get()
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/kernel/linux/linux-5.10/include/linux/
Dsbitmap.h1 /* SPDX-License-Identifier: GPL-2.0-only */
6 * Copyright (C) 2013-2014 Jens Axboe
18 * struct sbitmap_word - Word in a &struct sbitmap.
37 * @swap_lock: Held while swapping word <-> cleared
43 * struct sbitmap - Scalable bitmap.
45 * A &struct sbitmap is spread over multiple cachelines to avoid ping-pong. This
74 * struct sbq_wait_state - Wait queue in a &struct sbitmap_queue.
89 * struct sbitmap_queue - Scalable bitmap with the added ability to wait on free
106 * This is per-cpu, which allows multiple users to stick to different
133 * @round_robin: Allocate bits in strict round-robin order.
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/kernel/linux/linux-5.10/arch/powerpc/platforms/cell/
Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
23 #include <linux/cpu.h>
39 #include <asm/code-patching.h>
51 * The Primary thread of each non-boot processor was started from the OF client
57 * smp_startup_cpu() - start the given cpu
64 * 0 - failure
65 * 1 - success
82 * If the RTAS start-cpu token does not exist then presume the in smp_startup_cpu()
83 * cpu is already spinning. in smp_startup_cpu()
85 start_cpu = rtas_token("start-cpu"); in smp_startup_cpu()
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/kernel/linux/build/test/moduletest/runtest/bin/cpuisolation_t/testcases/bin/
Dcpuisolation02.sh5 # SPDX-License-Identifier: GPL-2.0
16 # Description: check CPU lightweight isolation basic function
18 # Authors: liudanning - liudanning@h-partners.com
20 # History: Mar 24 2022 - init scripts
34 dir_name=/sys/devices/system/cpu/cpu0/core_ctl
37 cpu_total=$(cat /proc/cpuinfo | grep "processor"| wc -l)
38 cpu_total=$(( $cpu_total - 1 ))
41 touch cpu${i}_taskpid.txt
44 tst_res TINFO "Start to check CPU lightweight isolation basic function."
55 # check sh distributed on each CPU
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