initial commit with v2.6.9
[linux-2.6.9-moxart.git] / include / asm-parisc / smp.h
blobfde77ac35463b1610c7c085d57b3ca9bd55f0fc6
1 #ifndef __ASM_SMP_H
2 #define __ASM_SMP_H
4 #include <linux/config.h>
6 #if defined(CONFIG_SMP)
8 /* Page Zero Location PDC will look for the address to branch to when we poke
9 ** slave CPUs still in "Icache loop".
11 #define PDC_OS_BOOT_RENDEZVOUS 0x10
12 #define PDC_OS_BOOT_RENDEZVOUS_HI 0x28
14 #ifndef ASSEMBLY
15 #include <linux/bitops.h>
16 #include <linux/threads.h> /* for NR_CPUS */
17 #include <linux/cpumask.h>
18 typedef unsigned long address_t;
20 extern cpumask_t cpu_online_map;
24 * Private routines/data
26 * physical and logical are equivalent until we support CPU hotplug.
28 #define cpu_number_map(cpu) (cpu)
29 #define cpu_logical_map(cpu) (cpu)
31 extern void smp_send_reschedule(int cpu);
33 #endif /* !ASSEMBLY */
36 * This magic constant controls our willingness to transfer
37 * a process across CPUs. Such a transfer incurs cache and tlb
38 * misses. The current value is inherited from i386. Still needs
39 * to be tuned for parisc.
42 #define PROC_CHANGE_PENALTY 15 /* Schedule penalty */
44 #undef ENTRY_SYS_CPUS
45 #ifdef ENTRY_SYS_CPUS
46 #define STATE_RENDEZVOUS 0
47 #define STATE_STOPPED 1
48 #define STATE_RUNNING 2
49 #define STATE_HALTED 3
50 #endif
52 extern unsigned long cpu_present_mask;
54 #define smp_processor_id() (current_thread_info()->cpu)
56 #endif /* CONFIG_SMP */
58 #define NO_PROC_ID 0xFF /* No processor magic marker */
59 #define ANY_PROC_ID 0xFF /* Any processor magic marker */
60 static inline int __cpu_disable (void) {
61 return 0;
63 static inline void __cpu_die (unsigned int cpu) {
64 while(1)
67 extern int __cpu_up (unsigned int cpu);
69 #endif /* __ASM_SMP_H */