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121 lines
2.4 KiB
121 lines
2.4 KiB
/* |
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* This file is subject to the terms and conditions of the GNU General |
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* Public License. See the file "COPYING" in the main directory of this |
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* archive for more details. |
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* |
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* Copyright (C) 2000 - 2001 by Kanoj Sarcar ([email protected]) |
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* Copyright (C) 2000 - 2001 by Silicon Graphics, Inc. |
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* Copyright (C) 2000, 2001, 2002 Ralf Baechle |
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* Copyright (C) 2000, 2001 Broadcom Corporation |
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*/ |
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#ifndef __ASM_SMP_OPS_H |
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#define __ASM_SMP_OPS_H |
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#include <linux/errno.h> |
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#include <asm/mips-cps.h> |
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#ifdef CONFIG_SMP |
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#include <linux/cpumask.h> |
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struct task_struct; |
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struct plat_smp_ops { |
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void (*send_ipi_single)(int cpu, unsigned int action); |
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void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action); |
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void (*init_secondary)(void); |
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void (*smp_finish)(void); |
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int (*boot_secondary)(int cpu, struct task_struct *idle); |
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void (*smp_setup)(void); |
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void (*prepare_cpus)(unsigned int max_cpus); |
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void (*prepare_boot_cpu)(void); |
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#ifdef CONFIG_HOTPLUG_CPU |
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int (*cpu_disable)(void); |
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void (*cpu_die)(unsigned int cpu); |
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#endif |
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#ifdef CONFIG_KEXEC |
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void (*kexec_nonboot_cpu)(void); |
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#endif |
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}; |
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extern void register_smp_ops(const struct plat_smp_ops *ops); |
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static inline void plat_smp_setup(void) |
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{ |
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extern const struct plat_smp_ops *mp_ops; /* private */ |
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mp_ops->smp_setup(); |
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} |
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extern void mips_smp_send_ipi_single(int cpu, unsigned int action); |
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extern void mips_smp_send_ipi_mask(const struct cpumask *mask, |
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unsigned int action); |
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#else /* !CONFIG_SMP */ |
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struct plat_smp_ops; |
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static inline void plat_smp_setup(void) |
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{ |
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/* UP, nothing to do ... */ |
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} |
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static inline void register_smp_ops(const struct plat_smp_ops *ops) |
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{ |
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} |
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#endif /* !CONFIG_SMP */ |
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static inline int register_up_smp_ops(void) |
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{ |
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#ifdef CONFIG_SMP_UP |
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extern const struct plat_smp_ops up_smp_ops; |
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register_smp_ops(&up_smp_ops); |
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return 0; |
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#else |
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return -ENODEV; |
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#endif |
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} |
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static inline int register_cmp_smp_ops(void) |
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{ |
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#ifdef CONFIG_MIPS_CMP |
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extern const struct plat_smp_ops cmp_smp_ops; |
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if (!mips_cm_present()) |
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return -ENODEV; |
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register_smp_ops(&cmp_smp_ops); |
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return 0; |
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#else |
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return -ENODEV; |
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#endif |
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} |
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static inline int register_vsmp_smp_ops(void) |
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{ |
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#ifdef CONFIG_MIPS_MT_SMP |
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extern const struct plat_smp_ops vsmp_smp_ops; |
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register_smp_ops(&vsmp_smp_ops); |
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return 0; |
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#else |
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return -ENODEV; |
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#endif |
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} |
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#ifdef CONFIG_MIPS_CPS |
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extern int register_cps_smp_ops(void); |
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#else |
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static inline int register_cps_smp_ops(void) |
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{ |
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return -ENODEV; |
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} |
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#endif |
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#endif /* __ASM_SMP_OPS_H */
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