diff options
Diffstat (limited to 'arch/sh/include/asm/smp.h')
| -rw-r--r-- | arch/sh/include/asm/smp.h | 70 |
1 files changed, 49 insertions, 21 deletions
diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h index 593343cd26e..78b0d0f4b24 100644 --- a/arch/sh/include/asm/smp.h +++ b/arch/sh/include/asm/smp.h @@ -3,15 +3,16 @@ #include <linux/bitops.h> #include <linux/cpumask.h> +#include <asm/smp-ops.h> #ifdef CONFIG_SMP #include <linux/spinlock.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/current.h> +#include <asm/percpu.h> #define raw_smp_processor_id() (current_thread_info()->cpu) -#define hard_smp_processor_id() plat_smp_processor_id() /* Map from cpu id to sequential logical cpu number. */ extern int __cpu_number_map[NR_CPUS]; @@ -21,25 +22,52 @@ extern int __cpu_number_map[NR_CPUS]; extern int __cpu_logical_map[NR_CPUS]; #define cpu_logical_map(cpu) __cpu_logical_map[cpu] -/* I've no idea what the real meaning of this is */ -#define PROC_CHANGE_PENALTY 20 - -#define NO_PROC_ID (-1) - -#define SMP_MSG_FUNCTION 0 -#define SMP_MSG_RESCHEDULE 1 -#define SMP_MSG_FUNCTION_SINGLE 2 -#define SMP_MSG_NR 3 - -void plat_smp_setup(void); -void plat_prepare_cpus(unsigned int max_cpus); -int plat_smp_processor_id(void); -void plat_start_cpu(unsigned int cpu, unsigned long entry_point); -void plat_send_ipi(unsigned int cpu, unsigned int message); -int plat_register_ipi_handler(unsigned int message, - void (*handler)(void *), void *arg); -extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi(cpumask_t mask); +enum { + SMP_MSG_FUNCTION, + SMP_MSG_RESCHEDULE, + SMP_MSG_FUNCTION_SINGLE, + SMP_MSG_TIMER, + + SMP_MSG_NR, /* must be last */ +}; + +DECLARE_PER_CPU(int, cpu_state); + +void smp_message_recv(unsigned int msg); +void smp_timer_broadcast(const struct cpumask *mask); + +void local_timer_interrupt(void); +void local_timer_setup(unsigned int cpu); +void local_timer_stop(unsigned int cpu); + +void arch_send_call_function_single_ipi(int cpu); +void arch_send_call_function_ipi_mask(const struct cpumask *mask); + +void native_play_dead(void); +void native_cpu_die(unsigned int cpu); +int native_cpu_disable(unsigned int cpu); + +#ifdef CONFIG_HOTPLUG_CPU +void play_dead_common(void); +extern int __cpu_disable(void); + +static inline void __cpu_die(unsigned int cpu) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + mp_ops->cpu_die(cpu); +} +#endif + +static inline int hard_smp_processor_id(void) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + if (!mp_ops) + return 0; /* boot CPU */ + + return mp_ops->smp_processor_id(); +} #else |
