/* * Copyright (C) 2012 ARM Ltd. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #ifndef __ASM_SMP_H #define __ASM_SMP_H #include #include #include #define raw_smp_processor_id() (current_thread_info()->cpu) struct seq_file; /* * generate IPI list text */ extern void show_ipi_list(struct seq_file *p, int prec); /* * Called from C code, this handles an IPI. */ extern void handle_IPI(int ipinr, struct pt_regs *regs); /* * Discover the set of possible CPUs and determine their * SMP operations. */ extern void smp_init_cpus(void); /* * Provide a function to raise an IPI cross call on CPUs in callmap. */ extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int)); extern void (*__smp_cross_call)(const struct cpumask *, unsigned int); /* * Called from the secondary holding pen, this is the secondary CPU entry point. */ asmlinkage void secondary_start_kernel(void); /* * Initial data for bringing up a secondary CPU. */ struct secondary_data { void *stack; }; extern struct secondary_data secondary_data; extern void secondary_entry(void); extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); #ifdef CONFIG_ARM64_ACPI_PARKING_PROTOCOL extern void arch_send_wakeup_ipi_mask(const struct cpumask *mask); #else static inline void arch_send_wakeup_ipi_mask(const struct cpumask *mask) { BUILD_BUG(); } #endif extern int __cpu_disable(void); extern void __cpu_die(unsigned int cpu); extern void cpu_die(void); #endif /* ifndef __ASM_SMP_H */