projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* smp.h: PPC specific SMP stuff. |
| 2 | * | |
| 3 | * Original was a copy of sparc smp.h. Now heavily modified | |
| 4 | * for PPC. | |
| 5 | * | |
| 6 | * Copyright (C) 1996 David S. Miller ([email protected]) | |
| 7 | * Copyright (C) 1996-2001 Cort Dougan <[email protected]> | |
| 8 | */ | |
| 9 | #ifdef __KERNEL__ | |
| 10 | #ifndef _PPC_SMP_H | |
| 11 | #define _PPC_SMP_H | |
| 12 | ||
| 13 | #include <linux/config.h> | |
| 14 | #include <linux/kernel.h> | |
| 15 | #include <linux/bitops.h> | |
| 16 | #include <linux/errno.h> | |
| 17 | #include <linux/cpumask.h> | |
| 18 | #include <linux/threads.h> | |
| 19 | ||
| 20 | #ifdef CONFIG_SMP | |
| 21 | ||
| 22 | #ifndef __ASSEMBLY__ | |
| 23 | ||
| 24 | struct cpuinfo_PPC { | |
| 25 | unsigned long loops_per_jiffy; | |
| 26 | unsigned long pvr; | |
| 27 | unsigned long *pgd_cache; | |
| 28 | unsigned long *pte_cache; | |
| 29 | unsigned long pgtable_cache_sz; | |
| 30 | }; | |
| 31 | ||
| 32 | extern struct cpuinfo_PPC cpu_data[]; | |
| 33 | extern cpumask_t cpu_online_map; | |
| 34 | extern cpumask_t cpu_possible_map; | |
| 35 | extern unsigned long smp_proc_in_lock[]; | |
| 36 | extern volatile unsigned long cpu_callin_map[]; | |
| 37 | extern int smp_tb_synchronized; | |
| 0b879a31 | 38 | extern struct smp_ops_t *smp_ops; |
| 1da177e4 LT |
39 | |
| 40 | extern void smp_send_tlb_invalidate(int); | |
| 41 | extern void smp_send_xmon_break(int cpu); | |
| 42 | struct pt_regs; | |
| 43 | extern void smp_message_recv(int, struct pt_regs *); | |
| 44 | ||
| 31139971 PM |
45 | extern int __cpu_disable(void); |
| 46 | extern void __cpu_die(unsigned int cpu); | |
| 47 | extern void cpu_die(void) __attribute__((noreturn)); | |
| 48 | ||
| 39c715b7 | 49 | #define raw_smp_processor_id() (current_thread_info()->cpu) |
| 1da177e4 LT |
50 | |
| 51 | extern int __cpu_up(unsigned int cpu); | |
| 52 | ||
| 53 | extern int smp_hw_index[]; | |
| 14cf11af PM |
54 | #define hard_smp_processor_id() (smp_hw_index[smp_processor_id()]) |
| 55 | #define get_hard_smp_processor_id(cpu) (smp_hw_index[(cpu)]) | |
| 1da177e4 LT |
56 | |
| 57 | #endif /* __ASSEMBLY__ */ | |
| 58 | ||
| 59 | #else /* !(CONFIG_SMP) */ | |
| 60 | ||
| 31139971 | 61 | static inline void cpu_die(void) { } |
| 14cf11af PM |
62 | #define get_hard_smp_processor_id(cpu) 0 |
| 63 | #define hard_smp_processor_id() 0 | |
| 31139971 | 64 | |
| 1da177e4 LT |
65 | #endif /* !(CONFIG_SMP) */ |
| 66 | ||
| 67 | #endif /* !(_PPC_SMP_H) */ | |
| 68 | #endif /* __KERNEL__ */ |