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