| /linux-6.12.1/drivers/cpufreq/ |
| D | intel_pstate.c | 228 int cpu; member
283 int (*get_max)(int cpu);
284 int (*get_max_physical)(int cpu);
285 int (*get_min)(int cpu);
286 int (*get_turbo)(int cpu);
288 int (*get_cpu_scaling)(int cpu);
356 static void intel_pstate_set_itmt_prio(int cpu) in intel_pstate_set_itmt_prio() argument
362 ret = cppc_get_perf_caps(cpu, &cppc_perf); in intel_pstate_set_itmt_prio()
371 cppc_perf.highest_perf = HWP_HIGHEST_PERF(READ_ONCE(all_cpu_data[cpu]->hwp_cap_cached)); in intel_pstate_set_itmt_prio()
378 sched_set_itmt_core_prio(cppc_perf.highest_perf, cpu); in intel_pstate_set_itmt_prio()
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| /linux-6.12.1/arch/arm/boot/dts/intel/axm/ |
| 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>;
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| /linux-6.12.1/arch/powerpc/kernel/ |
| D | smp.c | 277 void smp_muxed_ipi_set_message(int cpu, int msg) in smp_muxed_ipi_set_message() argument
279 struct cpu_messages *info = &per_cpu(ipi_message, cpu); in smp_muxed_ipi_set_message()
289 void smp_muxed_ipi_message_pass(int cpu, int msg) in smp_muxed_ipi_message_pass() argument
291 smp_muxed_ipi_set_message(cpu, msg); in smp_muxed_ipi_message_pass()
297 smp_ops->cause_ipi(cpu); in smp_muxed_ipi_message_pass()
351 static inline void do_message_pass(int cpu, int msg) in do_message_pass() argument
354 smp_ops->message_pass(cpu, msg); in do_message_pass()
357 smp_muxed_ipi_message_pass(cpu, msg); in do_message_pass()
361 void arch_smp_send_reschedule(int cpu) in arch_smp_send_reschedule() argument
364 do_message_pass(cpu, PPC_MSG_RESCHEDULE); in arch_smp_send_reschedule()
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| D | tau_6xx.c | 55 static void set_thresholds(unsigned long cpu) in set_thresholds() argument
60 mtspr(SPRN_THRM1, THRM1_THRES(tau[cpu].low) | THRM1_V | maybe_tie | THRM1_TID); in set_thresholds()
63 mtspr(SPRN_THRM2, THRM1_THRES(tau[cpu].high) | THRM1_V | maybe_tie); in set_thresholds()
66 static void TAUupdate(int cpu) in TAUupdate() argument
77 if (tau[cpu].low >= step_size) { in TAUupdate()
78 tau[cpu].low -= step_size; in TAUupdate()
79 tau[cpu].high -= (step_size - window_expand); in TAUupdate()
81 tau[cpu].grew = 1; in TAUupdate()
88 if (tau[cpu].high <= 127 - step_size) { in TAUupdate()
89 tau[cpu].low += (step_size - window_expand); in TAUupdate()
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| D | watchdog.c | 148 int cpu = raw_smp_processor_id(); in wd_lockup_ipi() local
151 pr_emerg("CPU %d Hard LOCKUP\n", cpu); in wd_lockup_ipi()
153 cpu, tb, per_cpu(wd_timer_tb, cpu), in wd_lockup_ipi()
154 tb_to_ns(tb - per_cpu(wd_timer_tb, cpu)) / 1000000); in wd_lockup_ipi()
182 static bool set_cpu_stuck(int cpu) in set_cpu_stuck() argument
184 cpumask_set_cpu(cpu, &wd_smp_cpus_stuck); in set_cpu_stuck()
185 cpumask_clear_cpu(cpu, &wd_smp_cpus_pending); in set_cpu_stuck()
200 static void watchdog_smp_panic(int cpu) in watchdog_smp_panic() argument
213 if (cpumask_test_cpu(cpu, &wd_smp_cpus_pending)) in watchdog_smp_panic()
220 if (c == cpu) in watchdog_smp_panic()
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| /linux-6.12.1/drivers/base/ |
| D | arch_topology.c | 66 int cpu; in topology_set_scale_freq_source() local
77 for_each_cpu(cpu, cpus) { in topology_set_scale_freq_source()
78 sfd = rcu_dereference(*per_cpu_ptr(&sft_data, cpu)); in topology_set_scale_freq_source()
82 rcu_assign_pointer(per_cpu(sft_data, cpu), data); in topology_set_scale_freq_source()
83 cpumask_set_cpu(cpu, &scale_freq_counters_mask); in topology_set_scale_freq_source()
97 int cpu; in topology_clear_scale_freq_source() local
101 for_each_cpu(cpu, cpus) { in topology_clear_scale_freq_source()
102 sfd = rcu_dereference(*per_cpu_ptr(&sft_data, cpu)); in topology_clear_scale_freq_source()
105 rcu_assign_pointer(per_cpu(sft_data, cpu), NULL); in topology_clear_scale_freq_source()
106 cpumask_clear_cpu(cpu, &scale_freq_counters_mask); in topology_clear_scale_freq_source()
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| D | cacheinfo.c | 25 #define ci_cacheinfo(cpu) (&per_cpu(ci_cpu_cacheinfo, cpu)) argument
26 #define cache_leaves(cpu) (ci_cacheinfo(cpu)->num_leaves) argument
27 #define per_cpu_cacheinfo(cpu) (ci_cacheinfo(cpu)->info_list) argument
28 #define per_cpu_cacheinfo_idx(cpu, idx) \ argument
29 (per_cpu_cacheinfo(cpu) + (idx))
34 struct cpu_cacheinfo *get_cpu_cacheinfo(unsigned int cpu) in get_cpu_cacheinfo() argument
36 return ci_cacheinfo(cpu); in get_cpu_cacheinfo()
57 bool last_level_cache_is_valid(unsigned int cpu) in last_level_cache_is_valid() argument
61 if (!cache_leaves(cpu)) in last_level_cache_is_valid()
64 llc = per_cpu_cacheinfo_idx(cpu, cache_leaves(cpu) - 1); in last_level_cache_is_valid()
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| /linux-6.12.1/tools/testing/selftests/cpu-hotplug/ |
| 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
33 online_cpus=`cat $SYSFS/devices/system/cpu/online`
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}
82 grep -q 1 $SYSFS/devices/system/cpu/cpu$1/online
87 grep -q 0 $SYSFS/devices/system/cpu/cpu$1/online
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| /linux-6.12.1/include/linux/ |
| D | topology.h | 94 static inline int cpu_to_node(int cpu) in cpu_to_node() argument
96 return per_cpu(numa_node, cpu); in cpu_to_node()
108 static inline void set_cpu_numa_node(int cpu, int node) in set_cpu_numa_node() argument
110 per_cpu(numa_node, cpu) = node; in set_cpu_numa_node()
151 static inline int cpu_to_mem(int cpu) in cpu_to_mem() argument
153 return per_cpu(_numa_mem_, cpu); in cpu_to_mem()
158 static inline void set_cpu_numa_mem(int cpu, int node) in set_cpu_numa_mem() argument
160 per_cpu(_numa_mem_, cpu) = node; in set_cpu_numa_mem()
175 static inline int cpu_to_mem(int cpu) in cpu_to_mem() argument
177 return cpu_to_node(cpu); in cpu_to_mem()
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| D | cpumask.h | 132 static __always_inline void cpu_max_bits_warn(unsigned int cpu, unsigned int bits) in cpu_max_bits_warn() argument
135 WARN_ON_ONCE(cpu >= bits); in cpu_max_bits_warn()
140 static __always_inline unsigned int cpumask_check(unsigned int cpu) in cpumask_check() argument
142 cpu_max_bits_warn(cpu, small_cpumask_bits); in cpumask_check()
143 return cpu; in cpumask_check()
294 #define for_each_cpu(cpu, mask) \ argument
295 for_each_set_bit(cpu, cpumask_bits(mask), small_cpumask_bits)
328 #define for_each_cpu_wrap(cpu, mask, start) \ argument
329 for_each_set_bit_wrap(cpu, cpumask_bits(mask), small_cpumask_bits, start)
345 #define for_each_cpu_and(cpu, mask1, mask2) \ argument
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| /linux-6.12.1/Documentation/translations/zh_CN/scheduler/ |
| D | sched-bwc.rst | 24 达“配额”微秒的CPU时间。当cgroup中的线程可运行时，该配额以时间片段的方式被分配到每个cpu
29 它以需求为基础被转移到cpu-local“筒仓”，在每次更新中转移的数量是可调整的，被描述为“片“（时
65 配额、周期和突发是在cpu子系统内通过cgroupfs管理的。
69 :ref:`Documentation/admin-guide/cgroup-v2.rst <cgroup-v2-cpu>`.
71 - cpu.cfs_quota_us：在一个时期内补充的运行时间（微秒）。
72 - cpu.cfs_period_us：一个周期的长度（微秒）。
73 - cpu.stat: 输出节流统计数据[下面进一步解释]
74 - cpu.cfs_burst_us：最大累积运行时间（微秒）。
78 cpu.cfs_period_us=100ms
79 cpu.cfs_quota_us=-1
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| /linux-6.12.1/tools/perf/tests/ |
| D | topology.c | 71 struct perf_cpu cpu; in check_cpu_topology() local
98 if (!session->header.env.cpu in check_cpu_topology()
114 TEST_ASSERT_VAL("Session header CPU map not set", session->header.env.cpu); in check_cpu_topology()
117 cpu.cpu = i; in check_cpu_topology()
118 if (!perf_cpu_map__has(map, cpu)) in check_cpu_topology()
121 session->header.env.cpu[i].core_id, in check_cpu_topology()
122 session->header.env.cpu[i].socket_id); in check_cpu_topology()
126 perf_cpu_map__for_each_cpu(cpu, i, map) { in check_cpu_topology()
127 id = aggr_cpu_id__cpu(cpu, NULL); in check_cpu_topology()
129 cpu.cpu == id.cpu.cpu); in check_cpu_topology()
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| /linux-6.12.1/arch/microblaze/kernel/cpu/ |
| D | cpuinfo-static.c | 23 void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu) in set_cpuinfo_static() argument
28 (fcpu(cpu, "xlnx,use-barrel") ? PVR0_USE_BARREL_MASK : 0) | in set_cpuinfo_static()
29 (fcpu(cpu, "xlnx,use-msr-instr") ? PVR2_USE_MSR_INSTR : 0) | in set_cpuinfo_static()
30 (fcpu(cpu, "xlnx,use-pcmp-instr") ? PVR2_USE_PCMP_INSTR : 0) | in set_cpuinfo_static()
31 (fcpu(cpu, "xlnx,use-div") ? PVR0_USE_DIV_MASK : 0); in set_cpuinfo_static()
43 ci->use_mult = fcpu(cpu, "xlnx,use-hw-mul"); in set_cpuinfo_static()
51 ci->use_fpu = fcpu(cpu, "xlnx,use-fpu"); in set_cpuinfo_static()
59 (fcpu(cpu, "xlnx,unaligned-exceptions") ? in set_cpuinfo_static()
61 (fcpu(cpu, "xlnx,ill-opcode-exception") ? in set_cpuinfo_static()
63 (fcpu(cpu, "xlnx,iopb-bus-exception") ? in set_cpuinfo_static()
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| /linux-6.12.1/arch/arm/mach-meson/ |
| 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
125 sram_base + MESON_SMP_SRAM_CPU_CTRL_ADDR_REG(cpu)); in meson_smp_begin_secondary_boot()
131 scu_cpu_power_enable(scu_base, cpu); in meson_smp_begin_secondary_boot()
134 static int meson_smp_finalize_secondary_boot(unsigned int cpu) in meson_smp_finalize_secondary_boot() argument
139 while (readl(sram_base + MESON_SMP_SRAM_CPU_CTRL_ADDR_REG(cpu))) { in meson_smp_finalize_secondary_boot()
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| /linux-6.12.1/arch/powerpc/include/asm/ |
| D | smp.h | 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);
68 extern int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us);
69 extern int smp_send_safe_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us);
79 void generic_cpu_die(unsigned int cpu);
80 void generic_set_cpu_dead(unsigned int cpu);
81 void generic_set_cpu_up(unsigned int cpu);
82 int generic_check_cpu_restart(unsigned int cpu);
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| /linux-6.12.1/arch/arm64/kernel/ |
| D | smp.c | 90 static void ipi_setup(int cpu);
93 static void ipi_teardown(int cpu);
94 static int op_cpu_kill(unsigned int cpu);
96 static inline int op_cpu_kill(unsigned int cpu) in op_cpu_kill() argument
107 static int boot_secondary(unsigned int cpu, struct task_struct *idle) in boot_secondary() argument
109 const struct cpu_operations *ops = get_cpu_ops(cpu); in boot_secondary()
112 return ops->cpu_boot(cpu); in boot_secondary()
119 int __cpu_up(unsigned int cpu, struct task_struct *idle) in __cpu_up() argument
132 ret = boot_secondary(cpu, idle); in __cpu_up()
135 pr_err("CPU%u: failed to boot: %d\n", cpu, ret); in __cpu_up()
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| /linux-6.12.1/arch/arm/mach-tegra/ |
| 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()
54 tegra_put_cpu_in_reset(cpu); in tegra20_boot_secondary()
62 flowctrl_write_cpu_halt(cpu, 0); in tegra20_boot_secondary()
64 tegra_enable_cpu_clock(cpu); in tegra20_boot_secondary()
65 flowctrl_write_cpu_csr(cpu, 0); /* Clear flow controller CSR. */ in tegra20_boot_secondary()
66 tegra_cpu_out_of_reset(cpu); in tegra20_boot_secondary()
70 static int tegra30_boot_secondary(unsigned int cpu, struct task_struct *idle) in tegra30_boot_secondary() argument
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| /linux-6.12.1/arch/arm/mach-bcm/ |
| D | platsmp-brcmstb.c | 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
78 base += (cpu_logical_map(cpu) * 4); in pwr_ctrl_get_base()
82 static u32 pwr_ctrl_rd(u32 cpu) in pwr_ctrl_rd() argument
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| /linux-6.12.1/arch/x86/xen/ |
| D | smp.c | 32 void xen_smp_intr_free(unsigned int cpu) in xen_smp_intr_free() argument
34 kfree(per_cpu(xen_resched_irq, cpu).name); in xen_smp_intr_free()
35 per_cpu(xen_resched_irq, cpu).name = NULL; in xen_smp_intr_free()
36 if (per_cpu(xen_resched_irq, cpu).irq >= 0) { in xen_smp_intr_free()
37 unbind_from_irqhandler(per_cpu(xen_resched_irq, cpu).irq, NULL); in xen_smp_intr_free()
38 per_cpu(xen_resched_irq, cpu).irq = -1; in xen_smp_intr_free()
40 kfree(per_cpu(xen_callfunc_irq, cpu).name); in xen_smp_intr_free()
41 per_cpu(xen_callfunc_irq, cpu).name = NULL; in xen_smp_intr_free()
42 if (per_cpu(xen_callfunc_irq, cpu).irq >= 0) { in xen_smp_intr_free()
43 unbind_from_irqhandler(per_cpu(xen_callfunc_irq, cpu).irq, NULL); in xen_smp_intr_free()
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| D | smp_pv.c | 59 int cpu; in cpu_bringup() local
72 cpu = smp_processor_id(); in cpu_bringup()
73 smp_store_cpu_info(cpu); in cpu_bringup()
74 set_cpu_sibling_map(cpu); in cpu_bringup()
80 notify_cpu_starting(cpu); in cpu_bringup()
82 set_cpu_online(cpu, true); in cpu_bringup()
96 void xen_smp_intr_free_pv(unsigned int cpu) in xen_smp_intr_free_pv() argument
98 kfree(per_cpu(xen_irq_work, cpu).name); in xen_smp_intr_free_pv()
99 per_cpu(xen_irq_work, cpu).name = NULL; in xen_smp_intr_free_pv()
100 if (per_cpu(xen_irq_work, cpu).irq >= 0) { in xen_smp_intr_free_pv()
[all …]
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| /linux-6.12.1/arch/loongarch/kernel/ |
| D | smp.c | 80 unsigned int cpu, i; in show_ipi_list() local
84 for_each_online_cpu(cpu) in show_ipi_list()
85 seq_printf(p, "%10u ", per_cpu(irq_stat, cpu).ipi_irqs[i]); in show_ipi_list()
90 static inline void set_cpu_core_map(int cpu) in set_cpu_core_map() argument
94 cpumask_set_cpu(cpu, &cpu_core_setup_map); in set_cpu_core_map()
97 if (cpu_data[cpu].package == cpu_data[i].package) { in set_cpu_core_map()
98 cpumask_set_cpu(i, &cpu_core_map[cpu]); in set_cpu_core_map()
99 cpumask_set_cpu(cpu, &cpu_core_map[i]); in set_cpu_core_map()
104 static inline void set_cpu_sibling_map(int cpu) in set_cpu_sibling_map() argument
108 cpumask_set_cpu(cpu, &cpu_sibling_setup_map); in set_cpu_sibling_map()
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| /linux-6.12.1/kernel/ |
| D | smpboot.c | 30 struct task_struct *idle_thread_get(unsigned int cpu) in idle_thread_get() argument
32 struct task_struct *tsk = per_cpu(idle_threads, cpu); in idle_thread_get()
50 static __always_inline void idle_init(unsigned int cpu) in idle_init() argument
52 struct task_struct *tsk = per_cpu(idle_threads, cpu); in idle_init()
55 tsk = fork_idle(cpu); in idle_init()
57 pr_err("SMP: fork_idle() failed for CPU %u\n", cpu); in idle_init()
59 per_cpu(idle_threads, cpu) = tsk; in idle_init()
68 unsigned int cpu, boot_cpu; in idle_threads_init() local
72 for_each_possible_cpu(cpu) { in idle_threads_init()
73 if (cpu != boot_cpu) in idle_threads_init()
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| /linux-6.12.1/arch/arm64/boot/dts/amd/ |
| 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>; };
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| /linux-6.12.1/drivers/xen/ |
| D | cpu_hotplug.c | 12 static void enable_hotplug_cpu(int cpu) in enable_hotplug_cpu() argument
14 if (!cpu_present(cpu)) in enable_hotplug_cpu()
15 xen_arch_register_cpu(cpu); in enable_hotplug_cpu()
17 set_cpu_present(cpu, true); in enable_hotplug_cpu()
20 static void disable_hotplug_cpu(int cpu) in disable_hotplug_cpu() argument
22 if (!cpu_is_hotpluggable(cpu)) in disable_hotplug_cpu()
25 if (cpu_online(cpu)) in disable_hotplug_cpu()
26 device_offline(get_cpu_device(cpu)); in disable_hotplug_cpu()
27 if (!cpu_online(cpu) && cpu_present(cpu)) { in disable_hotplug_cpu()
28 xen_arch_unregister_cpu(cpu); in disable_hotplug_cpu()
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| /linux-6.12.1/arch/s390/kernel/ |
| D | smp.c | 173 int cpu; in pcpu_find_address() local
175 for_each_cpu(cpu, mask) in pcpu_find_address()
176 if (per_cpu(pcpu_devices, cpu).address == address) in pcpu_find_address()
177 return &per_cpu(pcpu_devices, cpu); in pcpu_find_address()
192 static int pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu) in pcpu_alloc_lowcore() argument
208 lc->cpu_nr = cpu; in pcpu_alloc_lowcore()
209 lc->spinlock_lockval = arch_spin_lockval(cpu); in pcpu_alloc_lowcore()
216 if (abs_lowcore_map(cpu, lc, true)) in pcpu_alloc_lowcore()
218 lowcore_ptr[cpu] = lc; in pcpu_alloc_lowcore()
232 static void pcpu_free_lowcore(struct pcpu *pcpu, int cpu) in pcpu_free_lowcore() argument
[all …]
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