Linux Kernel  3.7.1
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smp.h
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1 #ifndef __ASM_SMP_H
2 #define __ASM_SMP_H
3 
4 
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>
17 typedef unsigned long address_t;
18 
19 
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 
28 extern void smp_send_all_nop(void);
29 
31 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
32 
33 #endif /* !ASSEMBLY */
34 
35 #define raw_smp_processor_id() (current_thread_info()->cpu)
36 
37 #else /* CONFIG_SMP */
38 
39 static inline void smp_send_all_nop(void) { return; }
40 
41 #endif
42 
43 #define NO_PROC_ID 0xFF /* No processor magic marker */
44 #define ANY_PROC_ID 0xFF /* Any processor magic marker */
45 static inline int __cpu_disable (void) {
46  return 0;
47 }
48 static inline void __cpu_die (unsigned int cpu) {
49  while(1)
50  ;
51 }
52 
53 #endif /* __ASM_SMP_H */