5 #if defined(CONFIG_SMP)
7 /* Page Zero Location PDC will look for the address to branch to when we poke
8 ** slave CPUs still in "Icache loop".
10 #define PDC_OS_BOOT_RENDEZVOUS 0x10
11 #define PDC_OS_BOOT_RENDEZVOUS_HI 0x28
14 #include <linux/bitops.h>
15 #include <linux/threads.h> /* for NR_CPUS */
16 #include <linux/cpumask.h>
17 typedef unsigned long address_t;
19 extern cpumask_t cpu_online_map;
23 * Private routines/data
25 * physical and logical are equivalent until we support CPU hotplug.
27 #define cpu_number_map(cpu) (cpu)
28 #define cpu_logical_map(cpu) (cpu)
30 extern void smp_send_reschedule(int cpu);
31 extern void smp_send_all_nop(void);
33 extern void arch_send_call_function_single_ipi(int cpu);
34 extern void arch_send_call_function_ipi(cpumask_t mask);
36 #endif /* !ASSEMBLY */
39 * This magic constant controls our willingness to transfer
40 * a process across CPUs. Such a transfer incurs cache and tlb
41 * misses. The current value is inherited from i386. Still needs
42 * to be tuned for parisc.
45 #define PROC_CHANGE_PENALTY 15 /* Schedule penalty */
47 extern unsigned long cpu_present_mask;
49 #define raw_smp_processor_id() (current_thread_info()->cpu)
51 #else /* CONFIG_SMP */
53 static inline void smp_send_all_nop(void) { return; }
57 #define NO_PROC_ID 0xFF /* No processor magic marker */
58 #define ANY_PROC_ID 0xFF /* Any processor magic marker */
59 static inline int __cpu_disable (void) {
62 static inline void __cpu_die (unsigned int cpu) {
66 extern int __cpu_up (unsigned int cpu);
68 #endif /* __ASM_SMP_H */