smp.h
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上传日期:2013-02-24
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- /*
- * BK Id: SCCS/s.smp.h 1.12 08/16/01 07:49:31 paulus
- */
- /* 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/config.h>
- #include <linux/kernel.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[NR_CPUS];
- extern unsigned long cpu_online_map;
- extern unsigned long smp_proc_in_lock[NR_CPUS];
- extern volatile unsigned long cpu_callin_map[NR_CPUS];
- extern int smp_tb_synchronized;
- extern void smp_store_cpu_info(int id);
- extern void smp_send_tlb_invalidate(int);
- extern void smp_send_xmon_break(int cpu);
- struct pt_regs;
- extern void smp_message_recv(int, struct pt_regs *);
- extern void smp_local_timer_interrupt(struct pt_regs *);
- #define NO_PROC_ID 0xFF /* No processor magic marker */
- #define PROC_CHANGE_PENALTY 20
- /* 1 to 1 mapping on PPC -- Cort */
- #define cpu_logical_map(cpu) (cpu)
- #define cpu_number_map(x) (x)
- #define smp_processor_id() (current->processor)
- extern int smp_hw_index[NR_CPUS];
- #define hard_smp_processor_id() (smp_hw_index[smp_processor_id()])
- struct klock_info_struct {
- unsigned long kernel_flag;
- unsigned char akp;
- };
- extern struct klock_info_struct klock_info;
- #define KLOCK_HELD 0xffffffff
- #define KLOCK_CLEAR 0x0
- #endif /* __ASSEMBLY__ */
- #else /* !(CONFIG_SMP) */
- #endif /* !(CONFIG_SMP) */
- #endif /* !(_PPC_SMP_H) */
- #endif /* __KERNEL__ */