diff options
Diffstat (limited to 'include/asm-ppc/smp.h')
| -rw-r--r-- | include/asm-ppc/smp.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/include/asm-ppc/smp.h b/include/asm-ppc/smp.h new file mode 100644 index 000000000000..ebfb614f55f6 --- /dev/null +++ b/include/asm-ppc/smp.h @@ -0,0 +1,70 @@ +/* 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__ */ |