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/linux-6.14.4/arch/mips/sgi-ip27/
Dip27-nmi.c1 // SPDX-License-Identifier: GPL-2.0
14 #include "ip27-common.h"
35 if (nmi_addr->call_addr) in install_cpu_nmi_handler()
37 nmi_addr->magic = NMI_MAGIC; in install_cpu_nmi_handler()
38 nmi_addr->call_addr = (void *)nmi_dump; in install_cpu_nmi_handler()
39 nmi_addr->call_addr_c = in install_cpu_nmi_handler()
40 (void *)(~((unsigned long)(nmi_addr->call_addr))); in install_cpu_nmi_handler()
41 nmi_addr->call_parm = 0; in install_cpu_nmi_handler()
45 * Copy the cpu registers which have been saved in the IP27prom format
51 struct reg_struct *nr; in nmi_cpu_eframe_save() local
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/linux-6.14.4/tools/perf/util/
Dcputopo.c1 // SPDX-License-Identifier: GPL-2.0
19 "%s/devices/system/cpu/cpu%d/topology/package_cpus_list"
21 "%s/devices/system/cpu/cpu%d/topology/core_siblings_list"
23 "%s/devices/system/cpu/cpu%d/topology/die_cpus_list"
25 "%s/devices/system/cpu/cpu%d/topology/core_cpus_list"
27 "%s/devices/system/cpu/cpu%d/topology/thread_siblings_list"
35 static int build_cpu_topology(struct cpu_topology *tp, int cpu) in build_cpu_topology() argument
43 int ret = -1; in build_cpu_topology()
46 sysfs__mountpoint(), cpu); in build_cpu_topology()
47 if (access(filename, F_OK) == -1) { in build_cpu_topology()
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Dcpumap.c1 // SPDX-License-Identifier: GPL-2.0
22 * CPU number.
34 return (data->mask32_data.long_size == 4) in perf_record_cpu_map_data__test_bit()
35 ? (bit_word32 < data->mask32_data.nr) && in perf_record_cpu_map_data__test_bit()
36 (data->mask32_data.mask[bit_word32] & bit_mask32) != 0 in perf_record_cpu_map_data__test_bit()
37 : (bit_word64 < data->mask64_data.nr) && in perf_record_cpu_map_data__test_bit()
38 (data->mask64_data.mask[bit_word64] & bit_mask64) != 0; in perf_record_cpu_map_data__test_bit()
41 /* Read ith mask value from data into the given 64-bit sized bitmap */
46 if (data->mask32_data.long_size == 4) in perf_record_cpu_map_data__read_one_mask()
47 bitmap[0] = data->mask32_data.mask[i]; in perf_record_cpu_map_data__read_one_mask()
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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.
123 new_sz = ts->sz + STACK_GROWTH; in thread_stack__grow()
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Dcpumap.h1 /* SPDX-License-Identifier: GPL-2.0 */
9 /** Identify where counts are aggregated, -1 implies not to aggregate. */
17 * /sys/devices/system/cpu/cpuX/topology/physical_package_id.
20 /** The die id as read from /sys/devices/system/cpu/cpuX/topology/die_id. */
22 /** The cluster id as read from /sys/devices/system/cpu/cpuX/topology/cluster_id */
24 /** The cache level as read from /sys/devices/system/cpu/cpuX/cache/indexY/level */
27 * The cache instance ID, which is the first CPU in the
28 * /sys/devices/system/cpu/cpuX/cache/indexY/shared_cpu_list
31 /** The core id as read from /sys/devices/system/cpu/cpuX/topology/core_id. */
33 /** CPU aggregation, note there is one CPU for each SMT thread. */
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/linux-6.14.4/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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/linux-6.14.4/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/text-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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/linux-6.14.4/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()
24 data = &map_event->data; in process_event_mask()
26 TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__MASK); in process_event_mask()
28 long_size = data->mask32_data.long_size; in process_event_mask()
32 TEST_ASSERT_VAL("wrong nr", data->mask32_data.nr == 1); in process_event_mask()
34 TEST_ASSERT_VAL("wrong cpu", perf_record_cpu_map_data__test_bit(0, data)); in process_event_mask()
35 TEST_ASSERT_VAL("wrong cpu", !perf_record_cpu_map_data__test_bit(1, data)); in process_event_mask()
37 TEST_ASSERT_VAL("wrong cpu", perf_record_cpu_map_data__test_bit(i, data)); in process_event_mask()
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Dswitch-tracking.c1 // SPDX-License-Identifier: GPL-2.0
15 #include "parse-events.h"
75 union perf_event *event, const char *comm, int nr) in check_comm() argument
77 if (event->header.type == PERF_RECORD_COMM && in check_comm()
78 (pid_t)event->comm.pid == getpid() && in check_comm()
79 (pid_t)event->comm.tid == getpid() && in check_comm()
80 strcmp(event->comm.comm, comm) == 0) { in check_comm()
81 if (switch_tracking->comm_seen[nr]) { in check_comm()
83 return -1; in check_comm()
85 switch_tracking->comm_seen[nr] = 1; in check_comm()
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/linux-6.14.4/arch/powerpc/platforms/powernv/
Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
17 #include <linux/cpu.h>
31 #include <asm/text-patching.h>
34 #include <asm/ppc-opcode.h>
50 static void pnv_smp_setup_cpu(int cpu) in pnv_smp_setup_cpu() argument
61 else if (cpu != boot_cpuid) in pnv_smp_setup_cpu()
65 static int pnv_smp_kick_cpu(int nr) in pnv_smp_kick_cpu() argument
73 if (nr < 0 || nr >= nr_cpu_ids) in pnv_smp_kick_cpu()
74 return -EINVAL; in pnv_smp_kick_cpu()
76 pcpu = get_hard_smp_processor_id(nr); in pnv_smp_kick_cpu()
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/linux-6.14.4/arch/powerpc/platforms/86xx/
Dmpc86xx_smp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
15 #include <asm/text-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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/linux-6.14.4/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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/linux-6.14.4/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 <[email protected]>
35 extern int cpu_to_chip_id(int cpu);
45 void (*message_pass)(int cpu, int msg);
47 void (*cause_ipi)(int cpu);
49 int (*cause_nmi_ipi)(int cpu);
51 int (*kick_cpu)(int nr);
52 int (*prepare_cpu)(int nr);
53 void (*setup_cpu)(int nr);
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/linux-6.14.4/fs/bcachefs/
Drcu_pending.c1 // SPDX-License-Identifier: GPL-2.0
4 #include <linux/generic-radix-tree.h>
83 * We're using a radix tree like a vector - we're just pushing elements
88 size_t nr; member
102 int cpu; member
121 if (p->objs.nr) in __rcu_pending_has_pending()
124 static_array_for_each(p->lists, i) in __rcu_pending_has_pending()
125 if (i->head) in __rcu_pending_has_pending()
135 if (!l1->head) in rcu_pending_list_merge()
136 l1->head = l2->head; in rcu_pending_list_merge()
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/linux-6.14.4/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>
65 /* Must not be called with cpu hot plug lock */
71 /* serialize with cpu hotplug operations */ in disable_swap_slots_cache_lock()
111 static int alloc_swap_slot_cache(unsigned int cpu) in alloc_swap_slot_cache() argument
124 return -ENOMEM; in alloc_swap_slot_cache()
127 cache = &per_cpu(swp_slots, cpu); in alloc_swap_slot_cache()
128 if (cache->slots) { in alloc_swap_slot_cache()
137 if (!cache->lock_initialized) { in alloc_swap_slot_cache()
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/linux-6.14.4/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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/linux-6.14.4/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(unsigned long nr, volatile unsigned long *addr) in arch___set_bit() argument
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/linux-6.14.4/arch/sparc/kernel/
Dsmp_64.c1 // SPDX-License-Identifier: GPL-2.0
28 #include <linux/cpu.h>
63 { [0 ... NR_CPUS-1] = CPU_MASK_NONE };
66 [0 ... NR_CPUS-1] = CPU_MASK_NONE };
69 [0 ... NR_CPUS - 1] = CPU_MASK_NONE };
87 seq_printf(m, "CPU%d:\t\tonline\n", i); in smp_info()
96 "Cpu%dClkTck\t: %016lx\n", in smp_bogo()
127 current_thread_info()->new_child = 0; in smp_callin()
131 current->active_mm = &init_mm; in smp_callin()
133 /* inform the notifiers about the new cpu */ in smp_callin()
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/linux-6.14.4/include/xen/
Dxen-ops.h1 /* SPDX-License-Identifier: GPL-2.0 */
16 static inline uint32_t xen_vcpu_nr(int cpu) in xen_vcpu_nr() argument
18 return per_cpu(xen_vcpu_id, cpu); in xen_vcpu_nr()
36 void xen_setup_runstate_info(int cpu);
40 u64 xen_steal_clock(int cpu);
48 xen_pfn_t *pfn, int nr, int *err_ptr, pgprot_t prot,
52 xen_pfn_t *pfn, int nr, int *err_ptr, in xen_remap_pfn() argument
66 xen_pfn_t *gfn, int nr,
71 int nr, struct page **pages);
79 xen_pfn_t *gfn, int nr, in xen_xlate_remap_gfn_array() argument
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/linux-6.14.4/tools/testing/selftests/mm/
Duffd-stress.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
37 #include "uffd-common.h"
58 "./uffd-stress anon 100 99999\n\n"
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/linux-6.14.4/tools/testing/selftests/bpf/map_tests/
Dtask_storage_map.c1 // SPDX-License-Identifier: GPL-2.0
34 while (!ctx->start) in lookup_fn()
37 while (!ctx->stop && i++ < ctx->loop) in lookup_fn()
38 bpf_map_lookup_elem(ctx->map_fd, &ctx->pid_fd, &value); in lookup_fn()
42 static void abort_lookup(struct lookup_ctx *ctx, pthread_t *tids, unsigned int nr) in abort_lookup() argument
46 ctx->stop = true; in abort_lookup()
47 ctx->start = true; in abort_lookup()
48 for (i = 0; i < nr; i++) in abort_lookup()
55 unsigned int i, nr = 256, loop = 8192, cpu = 0; in test_task_storage_map_stress_lookup() local
65 nr = atoi(cfg); in test_task_storage_map_stress_lookup()
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/linux-6.14.4/tools/perf/scripts/python/
Dparallel-perf.py2 # SPDX-License-Identifier: GPL-2.0
5 # options --cpu and --time so that each job processes a different chunk
20 glb_prog_name = "parallel-perf.py"
88 return [ f"Non-empty error file {self.stderr_name}" ]
139 x = "0" * (10 - len(x)) + x
140 return x[:len(x) - 9] + "." + x[-9:]
150 max_len = len(str(cpus[-1]))
151 cpu_dir_fmt = f"cpu-%.{max_len}u"
154 for cpu in cpus:
155 if cpu >= 0:
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/linux-6.14.4/arch/powerpc/platforms/cell/
Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
23 #include <linux/cpu.h>
38 #include <asm/text-patching.h>
50 * The Primary thread of each non-boot processor was started from the OF client
56 * smp_startup_cpu() - start the given cpu
57 * @lcpu: Logical CPU ID of the CPU to be started.
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()
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/linux-6.14.4/arch/powerpc/platforms/pseries/
Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
22 #include <linux/cpu.h>
42 #include <asm/text-patching.h>
49 * The Primary thread of each non-boot processor was started from the OF client
54 /* Query where a cpu is now. Return codes #defined in plpar_wrappers.h */
62 "Firmware doesn't support query-cpu-stopped-state\n"); in smp_query_cpu_stopped()
69 "RTAS query-cpu-stopped-state failed: %i\n", status); in smp_query_cpu_stopped()
77 * smp_startup_cpu() - start the given cpu
84 * 0 - failure
85 * 1 - success
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/linux-6.14.4/tools/lib/perf/
Dcpumap.c1 // SPDX-License-Identifier: GPL-2.0-only
20 RC_CHK_ACCESS(map)->nr = nr_cpus; in perf_cpu_map__set_nr()
33 cpus->nr = nr_cpus; in perf_cpu_map__alloc()
34 refcount_set(&cpus->refcnt, 1); in perf_cpu_map__alloc()
44 RC_CHK_ACCESS(cpus)->map[0].cpu = -1; in perf_cpu_map__new_any_cpu()
89 …pr_warning("Number of online CPUs (%d) differs from the number configured (%d) the CPU map will on… in cpu_map__new_sysconf()
98 RC_CHK_ACCESS(cpus)->map[i].cpu = i; in cpu_map__new_sysconf()
110 if (sysfs__read_str("devices/system/cpu/online", &buf, &buf_len) >= 0) { in cpu_map__new_sysfs_online()
132 return cpu_a->cpu - cpu_b->cpu; in cmp_cpu()
137 return RC_CHK_ACCESS(cpus)->map[idx]; in __perf_cpu_map__cpu()
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