1 /* smp.h: Sparc64 specific SMP stuff. 2 * 3 * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net) 4 */ 5 6 #ifndef _SPARC64_SMP_H 7 #define _SPARC64_SMP_H 8 9 #include <linux/threads.h> 10 #include <asm/asi.h> 11 #include <asm/starfire.h> 12 #include <asm/spitfire.h> 13 14 #ifndef __ASSEMBLY__ 15 16 #include <linux/cpumask.h> 17 #include <linux/cache.h> 18 19 #endif /* !(__ASSEMBLY__) */ 20 21 #ifdef CONFIG_SMP 22 23 #ifndef __ASSEMBLY__ 24 25 /* 26 * Private routines/data 27 */ 28 29 #include <linux/bitops.h> 30 #include <linux/atomic.h> 31 #include <asm/percpu.h> 32 33 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); 34 extern cpumask_t cpu_core_map[NR_CPUS]; 35 extern int sparc64_multi_core; 36 37 extern void arch_send_call_function_single_ipi(int cpu); 38 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); 39 40 /* 41 * General functions that each host system must provide. 42 */ 43 44 extern int hard_smp_processor_id(void); 45 #define raw_smp_processor_id() (current_thread_info()->cpu) 46 47 extern void smp_fill_in_sib_core_maps(void); 48 extern void cpu_play_dead(void); 49 50 extern void smp_fetch_global_regs(void); 51 extern void smp_fetch_global_pmu(void); 52 53 struct seq_file; 54 void smp_bogo(struct seq_file *); 55 void smp_info(struct seq_file *); 56 57 #ifdef CONFIG_HOTPLUG_CPU 58 extern int __cpu_disable(void); 59 extern void __cpu_die(unsigned int cpu); 60 #endif 61 62 #endif /* !(__ASSEMBLY__) */ 63 64 #else 65 66 #define hard_smp_processor_id() 0 67 #define smp_fill_in_sib_core_maps() do { } while (0) 68 #define smp_fetch_global_regs() do { } while (0) 69 #define smp_fetch_global_pmu() do { } while (0) 70 71 #endif /* !(CONFIG_SMP) */ 72 73 #endif /* !(_SPARC64_SMP_H) */ 74