| #ifndef __ASM_SMP_H |
| #define __ASM_SMP_H |
| |
| #include <linux/config.h> |
| #include <asm/pal.h> |
| |
| /* HACK: Cabrio WHAMI return value is bogus if more than 8 bits used.. :-( */ |
| |
| static __inline__ unsigned char |
| __hard_smp_processor_id(void) |
| { |
| register unsigned char __r0 __asm__("$0"); |
| __asm__ __volatile__( |
| "call_pal %1 #whami" |
| : "=r"(__r0) |
| :"i" (PAL_whami) |
| : "$1", "$22", "$23", "$24", "$25"); |
| return __r0; |
| } |
| |
| #ifdef CONFIG_SMP |
| |
| #include <linux/threads.h> |
| #include <asm/irq.h> |
| |
| struct cpuinfo_alpha { |
| unsigned long loops_per_jiffy; |
| unsigned long last_asn; |
| int need_new_asn; |
| int asn_lock; |
| unsigned long *pgd_cache; |
| unsigned long *pmd_cache; |
| unsigned long *pte_cache; |
| unsigned long pgtable_cache_sz; |
| unsigned long ipi_count; |
| unsigned long irq_attempt[NR_IRQS]; |
| unsigned long prof_multiplier; |
| unsigned long prof_counter; |
| unsigned char mcheck_expected; |
| unsigned char mcheck_taken; |
| unsigned char mcheck_extra; |
| } __attribute__((aligned(64))); |
| |
| extern struct cpuinfo_alpha cpu_data[NR_CPUS]; |
| |
| #define PROC_CHANGE_PENALTY 20 |
| |
| /* Map from cpu id to sequential logical cpu number. This will only |
| not be idempotent when cpus failed to come on-line. */ |
| extern int __cpu_number_map[NR_CPUS]; |
| #define cpu_number_map(cpu) __cpu_number_map[cpu] |
| |
| /* The reverse map from sequential logical cpu number to cpu id. */ |
| extern int __cpu_logical_map[NR_CPUS]; |
| #define cpu_logical_map(cpu) __cpu_logical_map[cpu] |
| |
| #define hard_smp_processor_id() __hard_smp_processor_id() |
| #define smp_processor_id() (current->processor) |
| |
| extern unsigned long cpu_present_mask; |
| #define cpu_online_map cpu_present_mask |
| |
| extern int smp_call_function_on_cpu(void (*func) (void *info), void *info,int retry, int wait, unsigned long cpu); |
| |
| #else /* CONFIG_SMP */ |
| |
| #define smp_call_function_on_cpu(func,info,retry,wait,cpu) ({ 0; }) |
| |
| #endif /* CONFIG_SMP */ |
| |
| #define NO_PROC_ID (-1) |
| |
| #endif |