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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /* * This file is subject to the terms and conditions of the GNU General * Public License. See the file "COPYING" in the main directory of this * archive for more details. * * Copyright (C) 2000 - 2001 by Kanoj Sarcar (kanoj@sgi.com) * Copyright (C) 2000 - 2001 by Silicon Graphics, Inc. * Copyright (C) 2000, 2001, 2002 Ralf Baechle * Copyright (C) 2000, 2001 Broadcom Corporation */ #ifndef __ASM_SMP_OPS_H #define __ASM_SMP_OPS_H #include <linux/errno.h> #include <asm/mips-cps.h> #ifdef CONFIG_SMP #include <linux/cpumask.h> struct task_struct; struct plat_smp_ops { void (*send_ipi_single)(int cpu, unsigned int action); void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action); void (*init_secondary)(void); void (*smp_finish)(void); int (*boot_secondary)(int cpu, struct task_struct *idle); void (*smp_setup)(void); void (*prepare_cpus)(unsigned int max_cpus); void (*prepare_boot_cpu)(void); #ifdef CONFIG_HOTPLUG_CPU int (*cpu_disable)(void); void (*cpu_die)(unsigned int cpu); void (*cleanup_dead_cpu)(unsigned cpu); #endif #ifdef CONFIG_KEXEC void (*kexec_nonboot_cpu)(void); #endif }; extern void register_smp_ops(const struct plat_smp_ops *ops); static inline void plat_smp_setup(void) { extern const struct plat_smp_ops *mp_ops; /* private */ mp_ops->smp_setup(); } extern void mips_smp_send_ipi_single(int cpu, unsigned int action); extern void mips_smp_send_ipi_mask(const struct cpumask *mask, unsigned int action); #else /* !CONFIG_SMP */ struct plat_smp_ops; static inline void plat_smp_setup(void) { /* UP, nothing to do ... */ } static inline void register_smp_ops(const struct plat_smp_ops *ops) { } #endif /* !CONFIG_SMP */ static inline int register_up_smp_ops(void) { #ifdef CONFIG_SMP_UP extern const struct plat_smp_ops up_smp_ops; register_smp_ops(&up_smp_ops); return 0; #else return -ENODEV; #endif } static inline int register_vsmp_smp_ops(void) { #ifdef CONFIG_MIPS_MT_SMP extern const struct plat_smp_ops vsmp_smp_ops; if (!cpu_has_mipsmt) return -ENODEV; register_smp_ops(&vsmp_smp_ops); return 0; #else return -ENODEV; #endif } #ifdef CONFIG_MIPS_CPS extern int register_cps_smp_ops(void); #else static inline int register_cps_smp_ops(void) { return -ENODEV; } #endif #endif /* __ASM_SMP_OPS_H */ |