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 <asm/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 #define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask 40 41 /* 42 * General functions that each host system must provide. 43 */ 44 45 extern int hard_smp_processor_id(void); 46 #define raw_smp_processor_id() (current_thread_info()->cpu) 47 48 extern void smp_fill_in_sib_core_maps(void); 49 extern void cpu_play_dead(void); 50 51 extern void smp_fetch_global_regs(void); 52 53 #ifdef CONFIG_HOTPLUG_CPU 54 extern int __cpu_disable(void); 55 extern void __cpu_die(unsigned int cpu); 56 #endif 57 58 #endif /* !(__ASSEMBLY__) */ 59 60 #else 61 62 #define hard_smp_processor_id() 0 63 #define smp_fill_in_sib_core_maps() do { } while (0) 64 #define smp_fetch_global_regs() do { } while (0) 65 66 #endif /* !(CONFIG_SMP) */ 67 68 #endif /* !(_SPARC64_SMP_H) */ 69