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/* 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>
#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 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 *);
#define NO_PROC_ID 0xFF /* No processor magic marker */
#define PROC_CHANGE_PENALTY 20
#define 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()])
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__ */
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