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/linux/drivers/cpufreq/
H A Dintel_pstate.c21 #include <linux/cpu.h>
33 #include <asm/cpu.h>
100 * to account for cpu idle period
136 * Stores the per cpu model P state limits and current P state.
191 * struct cpudata - Per CPU instance data storage
192 * @cpu: CPU number for this instance data
198 * @pstate: Stores P state limits for this CPU
199 * @vid: Stores VID limits for this CPU
221 * @sched_flags: Store scheduler flags for possible cross CPU update
224 * @pd_registered: Set when a perf domain is registered for this CPU.
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/linux/arch/arm/boot/dts/intel/axm/
H A Daxm5516-cpus.dtsi13 cpu-map {
16 cpu = <&CPU0>;
19 cpu = <&CPU1>;
22 cpu = <&CPU2>;
25 cpu = <&CPU3>;
30 cpu = <&CPU4>;
33 cpu = <&CPU5>;
36 cpu = <&CPU6>;
39 cpu = <&CPU7>;
44 cpu = <&CPU8>;
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/linux/arch/arm/mach-meson/
H A Dplatsmp.c38 static struct reset_control *meson_smp_get_core_reset(int cpu) in meson_smp_get_core_reset() argument
40 struct device_node *np = of_get_cpu_node(cpu, 0); in meson_smp_get_core_reset()
45 static void meson_smp_set_cpu_ctrl(int cpu, bool on_off) in meson_smp_set_cpu_ctrl() argument
50 val |= BIT(cpu); in meson_smp_set_cpu_ctrl()
52 val &= ~BIT(cpu); in meson_smp_set_cpu_ctrl()
116 static void meson_smp_begin_secondary_boot(unsigned int cpu) in meson_smp_begin_secondary_boot() argument
119 * Set the entry point before powering on the CPU through the SCU. This in meson_smp_begin_secondary_boot()
120 * is needed if the CPU is in "warm" state (= after rebooting the in meson_smp_begin_secondary_boot()
121 * system without power-cycling, or when taking the CPU offline and in meson_smp_begin_secondary_boot()
125 sram_base + MESON_SMP_SRAM_CPU_CTRL_ADDR_REG(cpu)); in meson_smp_begin_secondary_boot()
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/linux/drivers/base/
H A Darch_topology.c3 * Arch specific cpu topology information
12 #include <linux/cpu.h>
74 int cpu; in topology_set_scale_freq_source() local
85 for_each_cpu(cpu, cpus) { in topology_set_scale_freq_source()
86 sfd = rcu_dereference(*per_cpu_ptr(&sft_data, cpu)); in topology_set_scale_freq_source()
90 rcu_assign_pointer(per_cpu(sft_data, cpu), data); in topology_set_scale_freq_source()
91 cpumask_set_cpu(cpu, &scale_freq_counters_mask); in topology_set_scale_freq_source()
105 int cpu; in topology_clear_scale_freq_source() local
109 for_each_cpu(cpu, cpus) { in topology_clear_scale_freq_source()
110 sfd = rcu_dereference(*per_cpu_ptr(&sft_data, cpu)); in topology_clear_scale_freq_source()
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H A Dcacheinfo.c5 * Based on arch/x86/kernel/cpu/intel_cacheinfo.c
15 #include <linux/cpu.h>
24 /* pointer to per cpu cacheinfo */
26 #define ci_cacheinfo(cpu) (&per_cpu(ci_cpu_cacheinfo, cpu)) argument
27 #define cache_leaves(cpu) (ci_cacheinfo(cpu)->num_leaves) argument
28 #define per_cpu_cacheinfo(cpu) (ci_cacheinfo(cpu)->info_list) argument
29 #define per_cpu_cacheinfo_idx(cpu, idx) \ argument
30 (per_cpu_cacheinfo(cpu) + (idx))
35 struct cpu_cacheinfo *get_cpu_cacheinfo(unsigned int cpu) in get_cpu_cacheinfo() argument
37 return ci_cacheinfo(cpu); in get_cpu_cacheinfo()
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/linux/arch/arm64/kernel/
H A Dsmp.c23 #include <linux/cpu.h>
42 #include <asm/cpu.h>
82 static void ipi_setup(int cpu);
85 static void ipi_teardown(int cpu);
86 static int op_cpu_kill(unsigned int cpu);
88 static inline int op_cpu_kill(unsigned int cpu) in op_cpu_kill() argument
96 * Boot a secondary CPU, and assign it the specified idle task.
97 * This also gives us the initial stack to use for this CPU.
99 static int boot_secondary(unsigned int cpu, struct task_struct *idle) in boot_secondary() argument
101 const struct cpu_operations *ops = get_cpu_ops(cpu); in boot_secondary()
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/linux/arch/arm64/boot/dts/cavium/
H A Dthunder-88xx.dtsi65 cpu@0 {
66 device_type = "cpu";
71 cpu@1 {
72 device_type = "cpu";
77 cpu@2 {
78 device_type = "cpu";
83 cpu@3 {
84 device_type = "cpu";
89 cpu@4 {
90 device_type = "cpu";
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/linux/tools/perf/pmu-events/arch/s390/cf_z16/
H A Dcrypto6.json3 "Unit": "CPU-M-CF",
7 …counter counts the total number of the pseudorandom-number-generation functions issued by the CPU."
10 "Unit": "CPU-M-CF",
14 …al number of CPU cycles when the DEA/AES/SHA coprocessor is busy performing the pseudorandom- numb…
17 "Unit": "CPU-M-CF",
21 …that are issued by the CPU and are blocked because the DEA/AES/SHA coprocessor is busy performing …
24 "Unit": "CPU-M-CF",
28 …CPU cycles blocked for the pseudorandom-number-generation functions issued by the CPU because the …
31 "Unit": "CPU-M-CF",
35 …"PublicDescription": "This counter counts the total number of the SHA functions issued by the CPU."
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/linux/tools/perf/pmu-events/arch/s390/cf_z15/
H A Dcrypto6.json3 "Unit": "CPU-M-CF",
7 …counter counts the total number of the pseudorandom-number-generation functions issued by the CPU."
10 "Unit": "CPU-M-CF",
14 …al number of CPU cycles when the DEA/AES/SHA coprocessor is busy performing the pseudorandom- numb…
17 "Unit": "CPU-M-CF",
21 …that are issued by the CPU and are blocked because the DEA/AES/SHA coprocessor is busy performing …
24 "Unit": "CPU-M-CF",
28 …CPU cycles blocked for the pseudorandom-number-generation functions issued by the CPU because the …
31 "Unit": "CPU-M-CF",
35 …"PublicDescription": "This counter counts the total number of the SHA functions issued by the CPU."
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/linux/tools/perf/pmu-events/arch/s390/cf_z17/
H A Dcrypto6.json3 "Unit": "CPU-M-CF",
7 …counter counts the total number of the pseudorandom-number-generation functions issued by the CPU."
10 "Unit": "CPU-M-CF",
14 …al number of CPU cycles when the DEA/AES/SHA coprocessor is busy performing the pseudorandom- numb…
17 "Unit": "CPU-M-CF",
21 …that are issued by the CPU and are blocked because the DEA/AES/SHA coprocessor is busy performing …
24 "Unit": "CPU-M-CF",
28 …CPU cycles blocked for the pseudorandom-number-generation functions issued by the CPU because the …
31 "Unit": "CPU-M-CF",
35 …"PublicDescription": "This counter counts the total number of the SHA functions issued by the CPU."
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/linux/tools/perf/tests/
H A Dtopology.c72 struct perf_cpu cpu; in check_cpu_topology() local
83 * cpu is a NULL pointer. in check_cpu_topology()
85 * CPU 0 is on core_id 0 and physical_package_id 6 in check_cpu_topology()
86 * CPU 1 is on core_id 1 and physical_package_id 3 in check_cpu_topology()
89 * dependent and might have higher numbers than the CPU id. in check_cpu_topology()
101 if (!env->cpu && strncmp(env->arch, "s390", 4) && strncmp(env->arch, "aarch64", 7)) in check_cpu_topology()
108 * test if physical_package_id returns -1 for cpu from perf_cpu_map. in check_cpu_topology()
115 TEST_ASSERT_VAL("Session header CPU map not set", env->cpu); in check_cpu_topology()
118 cpu.cpu = i; in check_cpu_topology()
119 if (!perf_cpu_map__has(map, cpu)) in check_cpu_topology()
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/linux/arch/arm/mach-tegra/
H A Dplatsmp.c36 static void tegra_secondary_init(unsigned int cpu) in tegra_secondary_init() argument
38 cpumask_set_cpu(cpu, &tegra_cpu_init_mask); in tegra_secondary_init()
42 static int tegra20_boot_secondary(unsigned int cpu, struct task_struct *idle) in tegra20_boot_secondary() argument
44 cpu = cpu_logical_map(cpu); in tegra20_boot_secondary()
47 * Force the CPU into reset. The CPU must remain in reset when in tegra20_boot_secondary()
49 * flow controller to stop driving reset if the CPU has been in tegra20_boot_secondary()
51 * effect on first boot of the CPU since it should already be in tegra20_boot_secondary()
54 tegra_put_cpu_in_reset(cpu); in tegra20_boot_secondary()
57 * Unhalt the CPU. If the flow controller was used to in tegra20_boot_secondary()
58 * power-gate the CPU this will cause the flow controller to in tegra20_boot_secondary()
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/linux/include/linux/
H A Dcpumask.h7 * set of CPUs in a system, one bit position per CPU number. In general,
84 * cpu_possible_mask- has bit 'cpu' set iff cpu is populatable
85 * cpu_present_mask - has bit 'cpu' set iff cpu is populated
86 * cpu_enabled_mask - has bit 'cpu' set iff cpu can be brought online
87 * cpu_online_mask - has bit 'cpu' set iff cpu available to scheduler
88 * cpu_active_mask - has bit 'cpu' set iff cpu available to migration
92 * The cpu_possible_mask is fixed at boot time, as the set of CPU IDs
108 * assumption that their single CPU is online. The UP
114 * only one CPU.
135 static __always_inline void cpu_max_bits_warn(unsigned int cpu, unsigned int bits) in cpu_max_bits_warn() argument
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/linux/tools/testing/selftests/cpu-hotplug/
H A Dcpu-on-off-test.sh27 if ! ls $SYSFS/devices/system/cpu/cpu* > /dev/null 2>&1; then
28 echo $msg cpu hotplug is not supported >&2
32 echo "CPU online/offline summary:"
33 online_cpus=`cat $SYSFS/devices/system/cpu/online`
37 echo "$msg: since there is only one cpu: $online_cpus"
41 present_cpus=`cat $SYSFS/devices/system/cpu/present`
47 offline_cpus=`cat $SYSFS/devices/system/cpu/offline`
63 for cpu in $SYSFS/devices/system/cpu/cpu*; do
64 if [ -f $cpu/online ] && grep -q $state $cpu/online; then
65 echo ${cpu##/*/cpu}
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/linux/arch/powerpc/kernel/
H A Dsmp.c29 #include <linux/cpu.h>
76 /* State of each CPU during hotplug phases */
117 * On big-cores system, thread_group_l1_cache_map for each CPU corresponds to
123 * On some big-cores system, thread_group_l2_cache_map for each CPU
130 * On P10, thread_group_l3_cache_map for each CPU is equal to the
144 * Returns 1 if the specified cpu should be brought up during boot.
278 void smp_muxed_ipi_set_message(int cpu, int msg) in smp_muxed_ipi_set_message() argument
280 struct cpu_messages *info = &per_cpu(ipi_message, cpu); in smp_muxed_ipi_set_message()
290 void smp_muxed_ipi_message_pass(int cpu, int msg) in smp_muxed_ipi_message_pass() argument
292 smp_muxed_ipi_set_message(cpu, msg); in smp_muxed_ipi_message_pass()
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/linux/arch/s390/kernel/
H A Dsmp.c13 * The code outside of smp.c uses logical cpu numbers, only smp.c does
14 * the translation of logical to physical cpu ids. All new code that
15 * operates on physical cpu numbers needs to go into smp.c.
18 #define pr_fmt(fmt) "cpu: " fmt
33 #include <linux/cpu.h>
81 * Pointer to the pcpu area of the boot CPU. This is required when a restart
82 * interrupt is triggered on an offline CPU. For that case accessing percpu
158 /* Status stored condition code is equivalent to cpu not running. */ in pcpu_running()
163 * Find struct pcpu by cpu address.
167 int cpu; in pcpu_find_address() local
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/linux/tools/perf/pmu-events/arch/s390/cf_zec12/
H A Dcrypto.json3 "Unit": "CPU-M-CF",
7 …counter counts the total number of the pseudorandom-number-generation functions issued by the CPU."
10 "Unit": "CPU-M-CF",
14 …al number of CPU cycles when the DEA/AES/SHA coprocessor is busy performing the pseudorandom- numb…
17 "Unit": "CPU-M-CF",
21 …that are issued by the CPU and are blocked because the DEA/AES/SHA coprocessor is busy performing …
24 "Unit": "CPU-M-CF",
28 …CPU cycles blocked for the pseudorandom-number-generation functions issued by the CPU because the …
31 "Unit": "CPU-M-CF",
35 …"PublicDescription": "This counter counts the total number of the SHA functions issued by the CPU."
[all …]
/linux/tools/perf/pmu-events/arch/s390/cf_z196/
H A Dcrypto.json3 "Unit": "CPU-M-CF",
7 …counter counts the total number of the pseudorandom-number-generation functions issued by the CPU."
10 "Unit": "CPU-M-CF",
14 …al number of CPU cycles when the DEA/AES/SHA coprocessor is busy performing the pseudorandom- numb…
17 "Unit": "CPU-M-CF",
21 …that are issued by the CPU and are blocked because the DEA/AES/SHA coprocessor is busy performing …
24 "Unit": "CPU-M-CF",
28 …CPU cycles blocked for the pseudorandom-number-generation functions issued by the CPU because the …
31 "Unit": "CPU-M-CF",
35 …"PublicDescription": "This counter counts the total number of the SHA functions issued by the CPU."
[all …]
/linux/tools/perf/pmu-events/arch/s390/cf_z10/
H A Dcrypto.json3 "Unit": "CPU-M-CF",
7 …counter counts the total number of the pseudorandom-number-generation functions issued by the CPU."
10 "Unit": "CPU-M-CF",
14 …al number of CPU cycles when the DEA/AES/SHA coprocessor is busy performing the pseudorandom- numb…
17 "Unit": "CPU-M-CF",
21 …that are issued by the CPU and are blocked because the DEA/AES/SHA coprocessor is busy performing …
24 "Unit": "CPU-M-CF",
28 …CPU cycles blocked for the pseudorandom-number-generation functions issued by the CPU because the …
31 "Unit": "CPU-M-CF",
35 …"PublicDescription": "This counter counts the total number of the SHA functions issued by the CPU."
[all …]
/linux/tools/perf/pmu-events/arch/s390/cf_z14/
H A Dcrypto.json3 "Unit": "CPU-M-CF",
7 …counter counts the total number of the pseudorandom-number-generation functions issued by the CPU."
10 "Unit": "CPU-M-CF",
14 …al number of CPU cycles when the DEA/AES/SHA coprocessor is busy performing the pseudorandom- numb…
17 "Unit": "CPU-M-CF",
21 …that are issued by the CPU and are blocked because the DEA/AES/SHA coprocessor is busy performing …
24 "Unit": "CPU-M-CF",
28 …CPU cycles blocked for the pseudorandom-number-generation functions issued by the CPU because the …
31 "Unit": "CPU-M-CF",
35 …"PublicDescription": "This counter counts the total number of the SHA functions issued by the CPU."
[all …]
/linux/tools/perf/pmu-events/arch/s390/cf_z13/
H A Dcrypto.json3 "Unit": "CPU-M-CF",
7 …counter counts the total number of the pseudorandom-number-generation functions issued by the CPU."
10 "Unit": "CPU-M-CF",
14 …al number of CPU cycles when the DEA/AES/SHA coprocessor is busy performing the pseudorandom- numb…
17 "Unit": "CPU-M-CF",
21 …that are issued by the CPU and are blocked because the DEA/AES/SHA coprocessor is busy performing …
24 "Unit": "CPU-M-CF",
28 …CPU cycles blocked for the pseudorandom-number-generation functions issued by the CPU because the …
31 "Unit": "CPU-M-CF",
35 …"PublicDescription": "This counter counts the total number of the SHA functions issued by the CPU."
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/linux/arch/um/kernel/
H A Dsmp.c16 #include <linux/cpu.h>
32 void arch_smp_send_reschedule(int cpu) in arch_smp_send_reschedule() argument
34 os_send_ipi(cpu, UML_IPI_RES); in arch_smp_send_reschedule()
37 void arch_send_call_function_single_ipi(int cpu) in arch_send_call_function_single_ipi() argument
39 os_send_ipi(cpu, UML_IPI_CALL_SINGLE); in arch_send_call_function_single_ipi()
44 int cpu; in arch_send_call_function_ipi_mask() local
46 for_each_cpu(cpu, mask) in arch_send_call_function_ipi_mask()
47 os_send_ipi(cpu, UML_IPI_CALL); in arch_send_call_function_ipi_mask()
52 int cpu, me = smp_processor_id(); in smp_send_stop() local
54 for_each_online_cpu(cpu) { in smp_send_stop()
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/linux/arch/loongarch/kernel/
H A Dsmp.c12 #include <linux/cpu.h>
29 #include <asm/cpu.h>
45 /* Representing the threads (siblings) of each logical CPU */
49 /* Representing the last level cache shared map of each logical CPU */
53 /* Representing the core map of multi-core chips of each logical CPU */
61 * A logcal cpu mask containing only one VPE per core to
88 unsigned int cpu, i; in show_ipi_list() local
92 for_each_online_cpu(cpu) in show_ipi_list()
93 seq_put_decimal_ull_width(p, " ", per_cpu(irq_stat, cpu).ipi_irqs[i], 10); in show_ipi_list()
98 static inline void set_cpu_core_map(int cpu) in set_cpu_core_map() argument
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/linux/drivers/of/
H A Dcpu.c2 #include <linux/cpu.h>
7 * of_get_cpu_hwid - Get the hardware ID from a CPU device node
9 * @cpun: CPU number(logical index) for which device node is required
12 * Return: The hardware ID for the CPU node or ~0ULL if not found.
29 * arch_match_cpu_phys_id - Match the given logical CPU and physical id
31 * @cpu: logical cpu index of a core/thread
34 * CPU logical to physical index mapping is architecture specific.
36 * id to logical cpu index. phys_id provided here is usually values read
39 * Returns true if the physical identifier and the logical cpu index
42 bool __weak arch_match_cpu_phys_id(int cpu, u64 phys_id) in arch_match_cpu_phys_id() argument
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/linux/drivers/cpuidle/
H A Dcoupled.c11 #include <linux/cpu.h>
25 * sequencing restrictions (on Tegra 2, cpu 0 must be the last to
26 * power down), or due to HW bugs (on OMAP4460, a cpu powering up
27 * will corrupt the gic state unless the other cpu runs a work
28 * around). Each cpu has a power state that it can enter without
29 * coordinating with the other cpu (usually Wait For Interrupt, or
35 * This file implements a solution, where each cpu will wait in the
45 * each cpu will increment the ready counter, and continue once the
47 * cpu exits idle, the other cpus will decrement their counter and
50 * requested_state stores the deepest coupled idle state each cpu
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