| /kernel/linux/linux-5.10/kernel/sched/ |
| D | sched_avg.c | 1 // 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/ |
| D | cpumap.c | 1 // 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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| D | cputopo.c | 1 // 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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| D | thread-stack.c | 1 // 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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| /kernel/linux/linux-4.19/tools/perf/util/ |
| D | cpumap.c | 1 // SPDX-License-Identifier: GPL-2.0
33 cpus->map[i] = i; in cpu_map__default_new()
35 cpus->nr = nr_cpus; in cpu_map__default_new()
36 refcount_set(&cpus->refcnt, 1); in cpu_map__default_new()
48 cpus->nr = nr_cpus; in cpu_map__trim_new()
49 memcpy(cpus->map, tmp_cpus, payload_size); in cpu_map__trim_new()
50 refcount_set(&cpus->refcnt, 1); in cpu_map__trim_new()
62 int n, cpu, prev; in cpu_map__read() local
66 prev = -1; in cpu_map__read()
68 n = fscanf(file, "%u%c", &cpu, &sep); in cpu_map__read()
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| /kernel/linux/linux-4.19/arch/mips/sgi-ip27/ |
| D | ip27-nmi.c | 1 // SPDX-License-Identifier: GPL-2.0
20 #define CNODEID_NONE (cnodeid_t)-1
41 if (nmi_addr->call_addr) in install_cpu_nmi_handler()
43 nmi_addr->magic = NMI_MAGIC; in install_cpu_nmi_handler()
44 nmi_addr->call_addr = (void *)nmi_dump; in install_cpu_nmi_handler()
45 nmi_addr->call_addr_c = in install_cpu_nmi_handler()
46 (void *)(~((unsigned long)(nmi_addr->call_addr))); in install_cpu_nmi_handler()
47 nmi_addr->call_parm = 0; in install_cpu_nmi_handler()
51 * Copy the cpu registers which have been saved in the IP27prom format
57 struct reg_struct *nr; in nmi_cpu_eframe_save() local
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| /kernel/linux/linux-5.10/arch/mips/sgi-ip27/ |
| D | ip27-nmi.c | 1 // 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/arch/powerpc/platforms/85xx/ |
| D | smp.c | 1 // 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>
59 qoriq_pm_ops->freeze_time_base(true); in mpc85xx_give_timebase()
62 * e5500/e6500 have a workaround for erratum A-006958 in place in mpc85xx_give_timebase()
63 * that will reread the timebase until TBL is non-zero. in mpc85xx_give_timebase()
67 * TBL is non-zero, we ensure that TB does not change. We don't in mpc85xx_give_timebase()
92 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-4.19/arch/powerpc/platforms/85xx/ |
| D | smp.c | 5 * Copyright 2006-2008, 2011-2012, 2015 Freescale Semiconductor Inc.
21 #include <linux/cpu.h>
30 #include <asm/code-patching.h>
63 qoriq_pm_ops->freeze_time_base(true); in mpc85xx_give_timebase()
66 * e5500/e6500 have a workaround for erratum A-006958 in place in mpc85xx_give_timebase()
67 * that will reread the timebase until TBL is non-zero. in mpc85xx_give_timebase()
71 * TBL is non-zero, we ensure that TB does not change. We don't in mpc85xx_give_timebase()
96 qoriq_pm_ops->freeze_time_base(false); in mpc85xx_give_timebase()
121 unsigned int cpu = smp_processor_id(); in smp_85xx_mach_cpu_die() local
125 /* mask all irqs to prevent cpu wakeup */ in smp_85xx_mach_cpu_die()
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/powerpc/ |
| D | ibm,powerpc-cpu-features.txt | 3 (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/Documentation/devicetree/bindings/powerpc/ |
| D | ibm,powerpc-cpu-features.txt | 3 (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/powernv/ |
| D | smp.c | 1 // 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-4.19/arch/powerpc/platforms/powernv/ |
| D | smp.c | 21 #include <linux/cpu.h>
35 #include <asm/code-patching.h>
38 #include <asm/ppc-opcode.h>
53 static void pnv_smp_setup_cpu(int cpu) in pnv_smp_setup_cpu() argument
64 else if (cpu != boot_cpuid) in pnv_smp_setup_cpu()
68 static int pnv_smp_kick_cpu(int nr) in pnv_smp_kick_cpu() argument
76 if (nr < 0 || nr >= nr_cpu_ids) in pnv_smp_kick_cpu()
77 return -EINVAL; in pnv_smp_kick_cpu()
79 pcpu = get_hard_smp_processor_id(nr); in pnv_smp_kick_cpu()
82 * kick the CPU via the PACA in pnv_smp_kick_cpu()
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| /kernel/linux/linux-5.10/tools/perf/tests/ |
| D | cpumap.c | 1 // 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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| /kernel/linux/linux-4.19/tools/testing/selftests/vm/ |
| D | userfaultfd.c | 7 * the COPYING file in the top-level directory.
13 * There are three threads running per CPU:
15 * 1) one per-CPU thread takes a per-page pthread_mutex in a random
17 * area_src), and increments a per-page counter in the same page,
20 * 2) another per-CPU thread handles the userfaults generated by
24 * 3) one last per-CPU thread transfers the memory in the background
26 * 2). Each cpu thread takes cares of transferring a portion of the
34 * per-CPU threads 1 by triggering userfaults inside
47 * # 10MiB-~6GiB 999 bounces, continue forever unless an error triggers
108 * to avoid non alignment faults on non-x86 archs.
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| /kernel/linux/linux-4.19/arch/powerpc/platforms/pseries/ |
| D | smp.c | 26 #include <linux/cpu.h>
47 #include <asm/code-patching.h>
54 * The Primary thread of each non-boot processor was started from the OF client
59 /* Query where a cpu is now. Return codes #defined in plpar_wrappers.h */
63 int qcss_tok = rtas_token("query-cpu-stopped-state"); in smp_query_cpu_stopped()
67 "Firmware doesn't support query-cpu-stopped-state\n"); in smp_query_cpu_stopped()
74 "RTAS query-cpu-stopped-state failed: %i\n", status); in smp_query_cpu_stopped()
82 * smp_startup_cpu() - start the given cpu
89 * 0 - failure
90 * 1 - success
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| /kernel/linux/linux-5.10/tools/testing/selftests/vm/ |
| D | userfaultfd.c | 1 // 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
80 /* Whether to test uffd write-protection */
94 int cpu; member
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| /kernel/linux/linux-5.10/arch/powerpc/platforms/86xx/ |
| D | mpc86xx_smp.c | 1 // 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/ |
| D | cpumap.c | 1 // 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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| D | evsel.c | 1 // 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-4.19/tools/perf/tests/ |
| D | cpumap.c | 1 // SPDX-License-Identifier: GPL-2.0
17 struct cpu_map_event *map_event = &event->cpu_map; in process_event_mask()
23 data = &map_event->data; in process_event_mask()
25 TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__MASK); in process_event_mask()
27 mask = (struct cpu_map_mask *)data->data; in process_event_mask()
29 TEST_ASSERT_VAL("wrong nr", mask->nr == 1); in process_event_mask()
32 TEST_ASSERT_VAL("wrong cpu", test_bit(i, mask->mask)); in process_event_mask()
36 TEST_ASSERT_VAL("wrong nr", map->nr == 20); in process_event_mask()
39 TEST_ASSERT_VAL("wrong cpu", map->map[i] == i); in process_event_mask()
51 struct cpu_map_event *map_event = &event->cpu_map; in process_event_cpus()
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| /kernel/linux/linux-4.19/arch/powerpc/platforms/86xx/ |
| D | mpc86xx_smp.c | 18 #include <asm/code-patching.h>
21 #include <asm/pci-bridge.h>
38 smp_86xx_release_core(int nr) in smp_86xx_release_core() argument
43 if (nr < 0 || nr >= NR_CPUS) in smp_86xx_release_core()
47 * Startup Core #nr. in smp_86xx_release_core()
52 pcr |= 1 << (nr + 24); in smp_86xx_release_core()
60 smp_86xx_kick_cpu(int nr) in smp_86xx_kick_cpu() argument
67 if (nr < 0 || nr >= NR_CPUS) in smp_86xx_kick_cpu()
68 return -ENOENT; in smp_86xx_kick_cpu()
70 pr_debug("smp_86xx_kick_cpu: kick CPU #%d\n", nr); in smp_86xx_kick_cpu()
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| /kernel/linux/linux-4.19/arch/powerpc/include/asm/ |
| D | smp.h | 2 * smp.h: PowerPC-specific SMP code.
8 * Copyright (C) 1996-2001 Cort Dougan <cort@fsmlabs.com>
37 extern int cpu_to_chip_id(int cpu);
42 void (*message_pass)(int cpu, int msg);
44 void (*cause_ipi)(int cpu);
46 int (*cause_nmi_ipi)(int cpu);
48 int (*kick_cpu)(int nr);
49 int (*prepare_cpu)(int nr);
50 void (*setup_cpu)(int nr);
55 void (*cpu_die)(unsigned int nr);
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| /kernel/linux/linux-5.10/arch/powerpc/include/asm/ |
| D | smp.h | 1 /* 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-4.19/tools/perf/Documentation/ |
| D | perf.data-file-format.txt | 5 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
62 uint32_t nr;
63 struct perf_header_string strings[nr]; /* variable length records */
86 char filename[header.size - offsetof(struct build_id_event, filename)];
92 (uname -n)
97 (uname -r)
107 A perf_header_string with the CPU architecture (uname -m)
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