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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __ASM_SMP_H
2#define __ASM_SMP_H
3
Linus Torvalds1da177e2005-04-16 15:20:36 -07004
5#if defined(CONFIG_SMP)
6
7/* Page Zero Location PDC will look for the address to branch to when we poke
8** slave CPUs still in "Icache loop".
9*/
10#define PDC_OS_BOOT_RENDEZVOUS 0x10
11#define PDC_OS_BOOT_RENDEZVOUS_HI 0x28
12
13#ifndef ASSEMBLY
14#include <linux/bitops.h>
15#include <linux/threads.h> /* for NR_CPUS */
16#include <linux/cpumask.h>
17typedef unsigned long address_t;
18
Linus Torvalds1da177e2005-04-16 15:20:36 -070019
20/*
21 * Private routines/data
22 *
23 * physical and logical are equivalent until we support CPU hotplug.
24 */
25#define cpu_number_map(cpu) (cpu)
26#define cpu_logical_map(cpu) (cpu)
27
28extern void smp_send_reschedule(int cpu);
James Bottomleyd911aed2005-11-17 16:27:02 -050029extern void smp_send_all_nop(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -070030
Jens Axboedbcf4782008-06-10 20:50:56 +020031extern void arch_send_call_function_single_ipi(int cpu);
Rusty Russell91887a32009-03-16 14:19:37 +103032extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
Jens Axboedbcf4782008-06-10 20:50:56 +020033
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#endif /* !ASSEMBLY */
35
Ingo Molnar39c715b2005-06-21 17:14:34 -070036#define raw_smp_processor_id() (current_thread_info()->cpu)
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
Kyle McMartin1d4c4522005-11-17 16:27:44 -050038#else /* CONFIG_SMP */
39
40static inline void smp_send_all_nop(void) { return; }
41
42#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070043
44#define NO_PROC_ID 0xFF /* No processor magic marker */
45#define ANY_PROC_ID 0xFF /* Any processor magic marker */
46static inline int __cpu_disable (void) {
47 return 0;
48}
49static inline void __cpu_die (unsigned int cpu) {
50 while(1)
51 ;
52}
53extern int __cpu_up (unsigned int cpu);
54
55#endif /* __ASM_SMP_H */