diff options
Diffstat (limited to 'arch/mips/include/asm/smp.h')
| -rw-r--r-- | arch/mips/include/asm/smp.h | 51 |
1 files changed, 46 insertions, 5 deletions
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h index 40e5ef1d4d2..b037334fca2 100644 --- a/arch/mips/include/asm/smp.h +++ b/arch/mips/include/asm/smp.h @@ -13,10 +13,11 @@ #include <linux/bitops.h> #include <linux/linkage.h> +#include <linux/smp.h> #include <linux/threads.h> #include <linux/cpumask.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/smp-ops.h> extern int smp_num_siblings; @@ -25,7 +26,7 @@ extern cpumask_t cpu_sibling_map[]; #define raw_smp_processor_id() (current_thread_info()->cpu) /* Map from cpu id to sequential logical cpu number. This will only - not be idempotent when cpus failed to come on-line. */ + not be idempotent when cpus failed to come on-line. */ extern int __cpu_number_map[NR_CPUS]; #define cpu_number_map(cpu) __cpu_number_map[cpu] @@ -35,11 +36,18 @@ extern int __cpu_logical_map[NR_CPUS]; #define NO_PROC_ID (-1) -#define SMP_RESCHEDULE_YOURSELF 0x1 /* XXX braindead */ +#define SMP_RESCHEDULE_YOURSELF 0x1 /* XXX braindead */ #define SMP_CALL_FUNCTION 0x2 /* Octeon - Tell another core to flush its icache */ #define SMP_ICACHE_FLUSH 0x4 +/* Used by kexec crashdump to save all cpu's state */ +#define SMP_DUMP 0x8 +#define SMP_ASK_C0COUNT 0x10 +extern volatile cpumask_t cpu_callin_map; + +/* Mask of CPUs which are currently definitely operating coherently */ +extern cpumask_t cpu_coherent_mask; extern void asmlinkage smp_bootstrap(void); @@ -55,9 +63,42 @@ static inline void smp_send_reschedule(int cpu) mp_ops->send_ipi_single(cpu, SMP_RESCHEDULE_YOURSELF); } +#ifdef CONFIG_HOTPLUG_CPU +static inline int __cpu_disable(void) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + return mp_ops->cpu_disable(); +} + +static inline void __cpu_die(unsigned int cpu) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + mp_ops->cpu_die(cpu); +} + +extern void play_dead(void); +#endif + extern asmlinkage void smp_call_function_interrupt(void); -extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi(cpumask_t mask); +static inline void arch_send_call_function_single_ipi(int cpu) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + mp_ops->send_ipi_mask(&cpumask_of_cpu(cpu), SMP_CALL_FUNCTION); +} + +static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask) +{ + extern struct plat_smp_ops *mp_ops; /* private */ + + mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION); +} +#if defined(CONFIG_KEXEC) +extern void (*dump_ipi_function_ptr)(void *); +void dump_send_ipi(void (*dump_ipi_callback)(void *)); +#endif #endif /* __ASM_SMP_H */ |