| /* smp.h: PPC specific SMP stuff. |
| * |
| * Original was a copy of sparc smp.h. Now heavily modified |
| * for PPC. |
| * |
| * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) |
| * Copyright (C) 1996-2001 Cort Dougan <cort@fsmlabs.com> |
| */ |
| #ifdef __KERNEL__ |
| #ifndef _PPC_SMP_H |
| #define _PPC_SMP_H |
| |
| #include <linux/kernel.h> |
| #include <linux/bitops.h> |
| #include <linux/errno.h> |
| #include <linux/cpumask.h> |
| #include <linux/threads.h> |
| |
| #ifdef CONFIG_SMP |
| |
| #ifndef __ASSEMBLY__ |
| |
| struct cpuinfo_PPC { |
| unsigned long loops_per_jiffy; |
| unsigned long pvr; |
| unsigned long *pgd_cache; |
| unsigned long *pte_cache; |
| unsigned long pgtable_cache_sz; |
| }; |
| |
| extern struct cpuinfo_PPC cpu_data[]; |
| extern cpumask_t cpu_online_map; |
| extern cpumask_t cpu_possible_map; |
| extern unsigned long smp_proc_in_lock[]; |
| extern volatile unsigned long cpu_callin_map[]; |
| extern int smp_tb_synchronized; |
| extern struct smp_ops_t *smp_ops; |
| |
| extern void smp_send_tlb_invalidate(int); |
| extern void smp_send_xmon_break(int cpu); |
| struct pt_regs; |
| extern void smp_message_recv(int); |
| |
| extern int __cpu_disable(void); |
| extern void __cpu_die(unsigned int cpu); |
| extern void cpu_die(void) __attribute__((noreturn)); |
| |
| #define raw_smp_processor_id() (current_thread_info()->cpu) |
| |
| extern int __cpu_up(unsigned int cpu); |
| |
| extern int smp_hw_index[]; |
| #define hard_smp_processor_id() (smp_hw_index[smp_processor_id()]) |
| #define get_hard_smp_processor_id(cpu) (smp_hw_index[(cpu)]) |
| #define set_hard_smp_processor_id(cpu, phys)\ |
| (smp_hw_index[(cpu)] = (phys)) |
| |
| #endif /* __ASSEMBLY__ */ |
| |
| #else /* !(CONFIG_SMP) */ |
| |
| static inline void cpu_die(void) { } |
| #define get_hard_smp_processor_id(cpu) 0 |
| #define set_hard_smp_processor_id(cpu, phys) |
| #define hard_smp_processor_id() 0 |
| |
| #endif /* !(CONFIG_SMP) */ |
| |
| #ifndef __ASSEMBLY__ |
| extern int boot_cpuid; |
| extern int boot_cpuid_phys; |
| #endif |
| |
| #endif /* !(_PPC_SMP_H) */ |
| #endif /* __KERNEL__ */ |