projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef __ASM_SMP_H |
| 2 | #define __ASM_SMP_H | |
| 3 | ||
| 4 | #include <linux/config.h> | |
| 5 | #include <linux/threads.h> | |
| 6 | #include <linux/cpumask.h> | |
| 7 | #include <linux/bitops.h> | |
| 8 | #include <asm/pal.h> | |
| 9 | ||
| 10 | /* HACK: Cabrio WHAMI return value is bogus if more than 8 bits used.. :-( */ | |
| 11 | ||
| 12 | static __inline__ unsigned char | |
| 13 | __hard_smp_processor_id(void) | |
| 14 | { | |
| 15 | register unsigned char __r0 __asm__("$0"); | |
| 16 | __asm__ __volatile__( | |
| 17 | "call_pal %1 #whami" | |
| 18 | : "=r"(__r0) | |
| 19 | :"i" (PAL_whami) | |
| 20 | : "$1", "$22", "$23", "$24", "$25"); | |
| 21 | return __r0; | |
| 22 | } | |
| 23 | ||
| 24 | #ifdef CONFIG_SMP | |
| 25 | ||
| 26 | #include <asm/irq.h> | |
| 27 | ||
| 28 | struct cpuinfo_alpha { | |
| 29 | unsigned long loops_per_jiffy; | |
| 30 | unsigned long last_asn; | |
| 31 | int need_new_asn; | |
| 32 | int asn_lock; | |
| 33 | unsigned long ipi_count; | |
| 34 | unsigned long prof_multiplier; | |
| 35 | unsigned long prof_counter; | |
| 36 | unsigned char mcheck_expected; | |
| 37 | unsigned char mcheck_taken; | |
| 38 | unsigned char mcheck_extra; | |
| 39 | } __attribute__((aligned(64))); | |
| 40 | ||
| 41 | extern struct cpuinfo_alpha cpu_data[NR_CPUS]; | |
| 42 | ||
| 43 | #define PROC_CHANGE_PENALTY 20 | |
| 44 | ||
| 45 | #define hard_smp_processor_id() __hard_smp_processor_id() | |
| 46 | #define smp_processor_id() (current_thread_info()->cpu) | |
| 47 | ||
| 48 | extern cpumask_t cpu_present_mask; | |
| 49 | extern cpumask_t cpu_online_map; | |
| 50 | extern int smp_num_cpus; | |
| 51 | #define cpu_possible_map cpu_present_mask | |
| 52 | ||
| 53 | int smp_call_function_on_cpu(void (*func) (void *info), void *info,int retry, int wait, cpumask_t cpu); | |
| 54 | ||
| 55 | #else /* CONFIG_SMP */ | |
| 56 | ||
| 57 | #define smp_call_function_on_cpu(func,info,retry,wait,cpu) ({ 0; }) | |
| 58 | ||
| 59 | #endif /* CONFIG_SMP */ | |
| 60 | ||
| 61 | #define NO_PROC_ID (-1) | |
| 62 | ||
| 63 | #endif |