1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* smp.h: Sparc64 specific SMP stuff. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net) 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef _SPARC64_SMP_H 8*4882a593Smuzhiyun #define _SPARC64_SMP_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <linux/threads.h> 11*4882a593Smuzhiyun #include <asm/asi.h> 12*4882a593Smuzhiyun #include <asm/starfire.h> 13*4882a593Smuzhiyun #include <asm/spitfire.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #ifndef __ASSEMBLY__ 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun #include <linux/cpumask.h> 18*4882a593Smuzhiyun #include <linux/cache.h> 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun #endif /* !(__ASSEMBLY__) */ 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun #ifdef CONFIG_SMP 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #ifndef __ASSEMBLY__ 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun /* 27*4882a593Smuzhiyun * Private routines/data 28*4882a593Smuzhiyun */ 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun #include <linux/bitops.h> 31*4882a593Smuzhiyun #include <linux/atomic.h> 32*4882a593Smuzhiyun #include <asm/percpu.h> 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); 35*4882a593Smuzhiyun extern cpumask_t cpu_core_map[NR_CPUS]; 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun void smp_init_cpu_poke(void); 38*4882a593Smuzhiyun void scheduler_poke(void); 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun void arch_send_call_function_single_ipi(int cpu); 41*4882a593Smuzhiyun void arch_send_call_function_ipi_mask(const struct cpumask *mask); 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun /* 44*4882a593Smuzhiyun * General functions that each host system must provide. 45*4882a593Smuzhiyun */ 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun int hard_smp_processor_id(void); 48*4882a593Smuzhiyun #define raw_smp_processor_id() (current_thread_info()->cpu) 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun void smp_fill_in_cpu_possible_map(void); 51*4882a593Smuzhiyun void smp_fill_in_sib_core_maps(void); 52*4882a593Smuzhiyun void cpu_play_dead(void); 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun void smp_fetch_global_regs(void); 55*4882a593Smuzhiyun void smp_fetch_global_pmu(void); 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun struct seq_file; 58*4882a593Smuzhiyun void smp_bogo(struct seq_file *); 59*4882a593Smuzhiyun void smp_info(struct seq_file *); 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun void smp_callin(void); 62*4882a593Smuzhiyun void cpu_panic(void); 63*4882a593Smuzhiyun void smp_synchronize_tick_client(void); 64*4882a593Smuzhiyun void smp_capture(void); 65*4882a593Smuzhiyun void smp_release(void); 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun #ifdef CONFIG_HOTPLUG_CPU 68*4882a593Smuzhiyun int __cpu_disable(void); 69*4882a593Smuzhiyun void __cpu_die(unsigned int cpu); 70*4882a593Smuzhiyun #endif 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun #endif /* !(__ASSEMBLY__) */ 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun #else 75*4882a593Smuzhiyun 76*4882a593Smuzhiyun #define hard_smp_processor_id() 0 77*4882a593Smuzhiyun #define smp_fill_in_sib_core_maps() do { } while (0) 78*4882a593Smuzhiyun #define smp_fetch_global_regs() do { } while (0) 79*4882a593Smuzhiyun #define smp_fetch_global_pmu() do { } while (0) 80*4882a593Smuzhiyun #define smp_fill_in_cpu_possible_map() do { } while (0) 81*4882a593Smuzhiyun #define smp_init_cpu_poke() do { } while (0) 82*4882a593Smuzhiyun #define scheduler_poke() do { } while (0) 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun #endif /* !(CONFIG_SMP) */ 85*4882a593Smuzhiyun 86*4882a593Smuzhiyun #endif /* !(_SPARC64_SMP_H) */ 87