1*a439fe51SSam Ravnborg /* smp.h: Sparc64 specific SMP stuff. 2*a439fe51SSam Ravnborg * 3*a439fe51SSam Ravnborg * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net) 4*a439fe51SSam Ravnborg */ 5*a439fe51SSam Ravnborg 6*a439fe51SSam Ravnborg #ifndef _SPARC64_SMP_H 7*a439fe51SSam Ravnborg #define _SPARC64_SMP_H 8*a439fe51SSam Ravnborg 9*a439fe51SSam Ravnborg #include <linux/threads.h> 10*a439fe51SSam Ravnborg #include <asm/asi.h> 11*a439fe51SSam Ravnborg #include <asm/starfire.h> 12*a439fe51SSam Ravnborg #include <asm/spitfire.h> 13*a439fe51SSam Ravnborg 14*a439fe51SSam Ravnborg #ifndef __ASSEMBLY__ 15*a439fe51SSam Ravnborg 16*a439fe51SSam Ravnborg #include <linux/cpumask.h> 17*a439fe51SSam Ravnborg #include <linux/cache.h> 18*a439fe51SSam Ravnborg 19*a439fe51SSam Ravnborg #endif /* !(__ASSEMBLY__) */ 20*a439fe51SSam Ravnborg 21*a439fe51SSam Ravnborg #ifdef CONFIG_SMP 22*a439fe51SSam Ravnborg 23*a439fe51SSam Ravnborg #ifndef __ASSEMBLY__ 24*a439fe51SSam Ravnborg 25*a439fe51SSam Ravnborg /* 26*a439fe51SSam Ravnborg * Private routines/data 27*a439fe51SSam Ravnborg */ 28*a439fe51SSam Ravnborg 29*a439fe51SSam Ravnborg #include <linux/bitops.h> 30*a439fe51SSam Ravnborg #include <asm/atomic.h> 31*a439fe51SSam Ravnborg #include <asm/percpu.h> 32*a439fe51SSam Ravnborg 33*a439fe51SSam Ravnborg DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); 34*a439fe51SSam Ravnborg extern cpumask_t cpu_core_map[NR_CPUS]; 35*a439fe51SSam Ravnborg extern int sparc64_multi_core; 36*a439fe51SSam Ravnborg 37*a439fe51SSam Ravnborg extern void arch_send_call_function_single_ipi(int cpu); 38*a439fe51SSam Ravnborg extern void arch_send_call_function_ipi(cpumask_t mask); 39*a439fe51SSam Ravnborg 40*a439fe51SSam Ravnborg /* 41*a439fe51SSam Ravnborg * General functions that each host system must provide. 42*a439fe51SSam Ravnborg */ 43*a439fe51SSam Ravnborg 44*a439fe51SSam Ravnborg extern int hard_smp_processor_id(void); 45*a439fe51SSam Ravnborg #define raw_smp_processor_id() (current_thread_info()->cpu) 46*a439fe51SSam Ravnborg 47*a439fe51SSam Ravnborg extern void smp_fill_in_sib_core_maps(void); 48*a439fe51SSam Ravnborg extern void cpu_play_dead(void); 49*a439fe51SSam Ravnborg 50*a439fe51SSam Ravnborg extern void smp_fetch_global_regs(void); 51*a439fe51SSam Ravnborg 52*a439fe51SSam Ravnborg #ifdef CONFIG_HOTPLUG_CPU 53*a439fe51SSam Ravnborg extern int __cpu_disable(void); 54*a439fe51SSam Ravnborg extern void __cpu_die(unsigned int cpu); 55*a439fe51SSam Ravnborg #endif 56*a439fe51SSam Ravnborg 57*a439fe51SSam Ravnborg #endif /* !(__ASSEMBLY__) */ 58*a439fe51SSam Ravnborg 59*a439fe51SSam Ravnborg #else 60*a439fe51SSam Ravnborg 61*a439fe51SSam Ravnborg #define hard_smp_processor_id() 0 62*a439fe51SSam Ravnborg #define smp_fill_in_sib_core_maps() do { } while (0) 63*a439fe51SSam Ravnborg #define smp_fetch_global_regs() do { } while (0) 64*a439fe51SSam Ravnborg 65*a439fe51SSam Ravnborg #endif /* !(CONFIG_SMP) */ 66*a439fe51SSam Ravnborg 67*a439fe51SSam Ravnborg #endif /* !(_SPARC64_SMP_H) */ 68