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/linux/drivers/cpufreq/
H A D	intel_pstate.c	`21 #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. [all …]`
/linux/arch/arm/boot/dts/intel/axm/
H A D	axm5516-cpus.dtsi	`13 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>; [all …]`
/linux/arch/arm/mach-meson/
H A D	platsmp.c	38 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() [all …]
/linux/drivers/base/
H A D	arch_topology.c	3 * 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() [all …]
H A D	cacheinfo.c	5 * 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() [all …]
/linux/tools/perf/pmu-events/arch/s390/cf_z16/
H A D	crypto6.json	3 "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_z15/
H A D	crypto6.json	3 "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_z17/
H A D	crypto6.json	3 "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/tests/
H A D	topology.c	72 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() [all …]
/linux/arch/arm/mach-tegra/
H A D	platsmp.c	36 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() [all …]
/linux/tools/testing/selftests/cpu-hotplug/
H A D	cpu-on-off-test.sh	27 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} [all …]
/linux/include/linux/
H A D	cpumask.h	7 * 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 [all …]
/linux/arch/powerpc/kernel/
H A D	smp.c	29 #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() [all …]
/linux/tools/perf/pmu-events/arch/s390/cf_z14/
H A D	crypto.json	3 "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 D	crypto.json	3 "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 D	crypto.json	3 "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_zec12/
H A D	crypto.json	3 "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 D	crypto.json	3 "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/arch/s390/kernel/
H A D	smp.c	13 * 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 [all …]
/linux/arch/um/kernel/
H A D	smp.c	16 #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() [all …]
/linux/kernel/
H A D	cpu.c	2 /* CPU control. 16 #include <linux/cpu.h> 48 * struct cpuhp_cpu_state - Per cpu hotplug state storage 49 * @state: The current cpu state 51 * @fail: Current CPU hotplug callback state 57 * @node: Remote CPU node; for multi-instance, do a 63 * @done_up: Signal completion to the issuer of the task for cpu-up 64 * @done_down: Signal completion to the issuer of the task for cpu-down 128 int (single)(unsigned int cpu); 129 int (multi)(unsigned int cpu, 170 cpuhp_invoke_callback(unsigned int cpu,enum cpuhp_state state,bool bringup,struct hlist_node * node,struct hlist_node ** lastp) cpuhp_invoke_callback() argument 309 cpuhp_wait_for_sync_state(unsigned int cpu,enum cpuhp_sync_state state,enum cpuhp_sync_state next_state) cpuhp_wait_for_sync_state() argument 355 arch_cpuhp_cleanup_dead_cpu(unsigned int cpu) arch_cpuhp_cleanup_dead_cpu() argument 361 cpuhp_bp_sync_dead(unsigned int cpu) cpuhp_bp_sync_dead() argument 382 cpuhp_bp_sync_dead(unsigned int cpu) cpuhp_bp_sync_dead() argument 403 cpuhp_can_boot_ap(unsigned int cpu) cpuhp_can_boot_ap() argument 431 arch_cpuhp_cleanup_kick_cpu(unsigned int cpu) arch_cpuhp_cleanup_kick_cpu() argument 437 cpuhp_bp_sync_alive(unsigned int cpu) cpuhp_bp_sync_alive() argument 454 cpuhp_bp_sync_alive(unsigned int cpu) cpuhp_bp_sync_alive() argument 455 cpuhp_can_boot_ap(unsigned int cpu) cpuhp_can_boot_ap() argument 664 cpu_smt_thread_allowed(unsigned int cpu) cpu_smt_thread_allowed() argument 673 cpu_bootable(unsigned int cpu) cpu_bootable() argument 707 cpu_bootable(unsigned int cpu) cpu_bootable() argument 711 cpuhp_set_state(int cpu,struct cpuhp_cpu_state * st,enum cpuhp_state target) cpuhp_set_state() argument 729 cpuhp_reset_state(int cpu,struct cpuhp_cpu_state * st,enum cpuhp_state prev_state) cpuhp_reset_state() argument 778 cpuhp_kick_ap(int cpu,struct cpuhp_cpu_state * st,enum cpuhp_state target) cpuhp_kick_ap() argument 794 bringup_wait_for_ap_online(unsigned int cpu) bringup_wait_for_ap_online() argument 819 cpuhp_kick_ap_alive(unsigned int cpu) cpuhp_kick_ap_alive() argument 827 cpuhp_bringup_ap(unsigned int cpu) cpuhp_bringup_ap() argument 859 bringup_cpu(unsigned int cpu) bringup_cpu() argument 904 finish_cpu(unsigned int cpu) finish_cpu() argument 957 __cpuhp_invoke_callback_range(bool bringup,unsigned int cpu,struct cpuhp_cpu_state * st,enum cpuhp_state target,bool nofail) __cpuhp_invoke_callback_range() argument 988 cpuhp_invoke_callback_range(bool bringup,unsigned int cpu,struct cpuhp_cpu_state * st,enum cpuhp_state target) cpuhp_invoke_callback_range() argument 996 cpuhp_invoke_callback_range_nofail(bool bringup,unsigned int cpu,struct cpuhp_cpu_state * st,enum cpuhp_state target) cpuhp_invoke_callback_range_nofail() argument 1017 cpuhp_up_callbacks(unsigned int cpu,struct cpuhp_cpu_state * st,enum cpuhp_state target) cpuhp_up_callbacks() argument 1040 cpuhp_should_run(unsigned int cpu) cpuhp_should_run() argument 1061 cpuhp_thread_fun(unsigned int cpu) cpuhp_thread_fun() argument 1128 cpuhp_invoke_ap_callback(int cpu,enum cpuhp_state state,bool bringup,struct hlist_node * node) cpuhp_invoke_ap_callback() argument 1178 cpuhp_kick_ap_work(unsigned int cpu) cpuhp_kick_ap_work() argument 1208 int cpu; cpuhp_init_state() local 1226 arch_clear_mm_cpumask_cpu(cpu,mm) global() argument 1241 clear_tasks_mm_cpumask(int cpu) clear_tasks_mm_cpumask() argument 1275 int err, cpu = smp_processor_id(); take_cpu_down() local 1298 takedown_cpu(unsigned int cpu) takedown_cpu() argument 1376 cpuhp_down_callbacks(unsigned int cpu,struct cpuhp_cpu_state * st,enum cpuhp_state target) cpuhp_down_callbacks() argument 1399 _cpu_down(unsigned int cpu,int tasks_frozen,enum cpuhp_state target) _cpu_down() argument 1460 unsigned int cpu; global() member 1471 cpu_down_maps_locked(unsigned int cpu,enum cpuhp_state target) cpu_down_maps_locked() argument 1497 cpu_down(unsigned int cpu,enum cpuhp_state target) cpu_down() argument 1522 remove_cpu(unsigned int cpu) remove_cpu() argument 1536 unsigned int cpu; smp_shutdown_nonboot_cpus() local 1587 notify_cpu_starting(unsigned int cpu) notify_cpu_starting() argument 1627 _cpu_up(unsigned int cpu,int tasks_frozen,enum cpuhp_state target) _cpu_up() argument 1692 cpu_up(unsigned int cpu,enum cpuhp_state target) cpu_up() argument 1738 add_cpu(unsigned int cpu) add_cpu() argument 1778 unsigned int cpu; cpuhp_bringup_mask() local 1899 int cpu, error = 0; freeze_secondary_cpus() local 1965 int cpu, error; thaw_secondary_cpus() local 2300 cpuhp_store_callbacks(enum cpuhp_state state,const char * name,int (* startup)(unsigned int cpu),int (* teardown)(unsigned int cpu),bool multi_instance) cpuhp_store_callbacks() argument 2301 cpuhp_store_callbacks(enum cpuhp_state state,const char * name,int (* startup)(unsigned int cpu),int (* teardown)(unsigned int cpu),bool multi_instance) cpuhp_store_callbacks() argument 2345 cpuhp_issue_call(int cpu,enum cpuhp_state state,bool bringup,struct hlist_node * node) cpuhp_issue_call() argument 2388 int cpu; cpuhp_rollback_install() local 2409 int cpu; __cpuhp_state_add_instance_cpuslocked() local 2481 __cpuhp_setup_state_cpuslocked(enum cpuhp_state state,const char * name,bool invoke,int (* startup)(unsigned int cpu),int (* teardown)(unsigned int cpu),bool multi_instance) __cpuhp_setup_state_cpuslocked() argument 2482 __cpuhp_setup_state_cpuslocked(enum cpuhp_state state,const char * name,bool invoke,int (* startup)(unsigned int cpu),int (* teardown)(unsigned int cpu),bool multi_instance) __cpuhp_setup_state_cpuslocked() argument 2485 int cpu, ret = 0; __cpuhp_setup_state_cpuslocked() local 2540 __cpuhp_setup_state(enum cpuhp_state state,const char * name,bool invoke,int (* startup)(unsigned int cpu),int (* teardown)(unsigned int cpu),bool multi_instance) __cpuhp_setup_state() argument 2541 __cpuhp_setup_state(enum cpuhp_state state,const char * name,bool invoke,int (* startup)(unsigned int cpu),int (* teardown)(unsigned int cpu),bool multi_instance) __cpuhp_setup_state() argument 2558 int cpu; __cpuhp_state_remove_instance() local 2605 int cpu; __cpuhp_remove_state_cpuslocked() local 2649 cpuhp_offline_cpu_device(unsigned int cpu) cpuhp_offline_cpu_device() argument 2658 cpuhp_online_cpu_device(unsigned int cpu) cpuhp_online_cpu_device() argument 2669 int cpu, ret = 0; cpuhp_smt_disable() local 2707 topology_is_core_online(unsigned int cpu) topology_is_core_online() argument 2715 int cpu, ret = 0; cpuhp_smt_enable() local 3036 int cpu, ret; cpuhp_sysfs_init() local 3132 set_cpu_online(unsigned int cpu,bool online) set_cpu_online() argument 3157 set_cpu_possible(unsigned int cpu,bool possible) set_cpu_possible() argument 3173 int cpu = smp_processor_id(); boot_cpu_init() local [all...]
/linux/drivers/cpuidle/
H A D	coupled.c	11 #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 [all …]
/linux/arch/arm64/boot/dts/amd/
H A D	elba-16core.dtsi	`11 cpu-map { 13 core0 { cpu = <&cpu0>; }; 14 core1 { cpu = <&cpu1>; }; 15 core2 { cpu = <&cpu2>; }; 16 core3 { cpu = <&cpu3>; }; 20 core0 { cpu = <&cpu4>; }; 21 core1 { cpu = <&cpu5>; }; 22 core2 { cpu = <&cpu6>; }; 23 core3 { cpu = <&cpu7>; }; 27 core0 { cpu = <&cpu8>; }; [all …]`
/linux/arch/arm/mach-bcm/
H A D	platsmp-brcmstb.c	3 * Broadcom STB CPU SMP and hotplug support for ARM 52 * We must quiesce a dying CPU before it can be killed by the boot CPU. Because 59 static int per_cpu_sw_state_rd(u32 cpu) in per_cpu_sw_state_rd() argument 61 sync_cache_r(SHIFT_PERCPU_PTR(&per_cpu_sw_state, per_cpu_offset(cpu))); in per_cpu_sw_state_rd() 62 return per_cpu(per_cpu_sw_state, cpu); in per_cpu_sw_state_rd() 65 static void per_cpu_sw_state_wr(u32 cpu, int val) in per_cpu_sw_state_wr() argument 68 per_cpu(per_cpu_sw_state, cpu) = val; in per_cpu_sw_state_wr() 69 sync_cache_w(SHIFT_PERCPU_PTR(&per_cpu_sw_state, per_cpu_offset(cpu))); in per_cpu_sw_state_wr() 72 static inline void per_cpu_sw_state_wr(u32 cpu, int val) { } in per_cpu_sw_state_wr() argument 75 static void __iomem *pwr_ctrl_get_base(u32 cpu) in pwr_ctrl_get_base() argument [all …]
/linux/arch/arm/kernel/
H A D	smp.c	20 #include <linux/cpu.h> 35 #include <asm/cpu.h> 86 static void ipi_setup(int cpu); 108 static int secondary_biglittle_prepare(unsigned int cpu) in secondary_biglittle_prepare() argument 110 if (!cpu_vtable[cpu]) in secondary_biglittle_prepare() 111 cpu_vtable[cpu] = kzalloc_obj(cpu_vtable[cpu]); in secondary_biglittle_prepare() 113 return cpu_vtable[cpu] ? 0 : -ENOMEM; in secondary_biglittle_prepare() 121 static int secondary_biglittle_prepare(unsigned int cpu) in secondary_biglittle_prepare() argument 131 int __cpu_up(unsigned int cpu, struct task_struct idle) in __cpu_up() argument 138 ret = secondary_biglittle_prepare(cpu); in __cpu_up() [all …]

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