diff options
Diffstat (limited to 'arch/powerpc/include/asm/smp.h')
| -rw-r--r-- | arch/powerpc/include/asm/smp.h | 50 |
1 files changed, 41 insertions, 9 deletions
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index a902a0d3ae0..5a6614a7f0b 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -20,6 +20,7 @@ #include <linux/threads.h> #include <linux/cpumask.h> #include <linux/kernel.h> +#include <linux/irqreturn.h> #ifndef __ASSEMBLY__ @@ -29,14 +30,33 @@ #include <asm/percpu.h> extern int boot_cpuid; +extern int spinning_secondaries; extern void cpu_die(void); +extern int cpu_to_chip_id(int cpu); #ifdef CONFIG_SMP -extern void smp_send_debugger_break(int cpu); -extern void smp_message_recv(int); +struct smp_ops_t { + void (*message_pass)(int cpu, int msg); +#ifdef CONFIG_PPC_SMP_MUXED_IPI + void (*cause_ipi)(int cpu, unsigned long data); +#endif + int (*probe)(void); + int (*kick_cpu)(int nr); + void (*setup_cpu)(int nr); + void (*bringup_done)(void); + void (*take_timebase)(void); + void (*give_timebase)(void); + int (*cpu_disable)(void); + void (*cpu_die)(unsigned int nr); + int (*cpu_bootable)(unsigned int nr); +}; + +extern void smp_send_debugger_break(void); extern void start_secondary_resume(void); +extern void smp_generic_give_timebase(void); +extern void smp_generic_take_timebase(void); DECLARE_PER_CPU(unsigned int, cpu_pvr); @@ -46,6 +66,8 @@ int generic_cpu_disable(void); void generic_cpu_die(unsigned int cpu); void generic_mach_cpu_die(void); void generic_set_cpu_dead(unsigned int cpu); +void generic_set_cpu_up(unsigned int cpu); +int generic_check_cpu_restart(unsigned int cpu); #endif #ifdef CONFIG_PPC64 @@ -90,17 +112,18 @@ extern int cpu_to_core_id(int cpu); * in /proc/interrupts will be wrong!!! --Troy */ #define PPC_MSG_CALL_FUNCTION 0 #define PPC_MSG_RESCHEDULE 1 -#define PPC_MSG_CALL_FUNC_SINGLE 2 +#define PPC_MSG_TICK_BROADCAST 2 #define PPC_MSG_DEBUGGER_BREAK 3 -/* - * irq controllers that have dedicated ipis per message and don't - * need additional code in the action handler may use this - */ +/* for irq controllers that have dedicated ipis per message (4) */ extern int smp_request_message_ipi(int virq, int message); extern const char *smp_ipi_name[]; -void smp_init_iSeries(void); +/* for irq controllers with only a single ipi */ +extern void smp_muxed_ipi_set_data(int cpu, unsigned long data); +extern void smp_muxed_ipi_message_pass(int cpu, int msg); +extern irqreturn_t smp_ipi_demux(void); + void smp_init_pSeries(void); void smp_init_cell(void); void smp_init_celleb(void); @@ -113,6 +136,12 @@ extern void __cpu_die(unsigned int cpu); /* for UP */ #define hard_smp_processor_id() get_hard_smp_processor_id(0) #define smp_setup_cpu_maps() +static inline void inhibit_secondary_onlining(void) {} +static inline void uninhibit_secondary_onlining(void) {} +static inline const struct cpumask *cpu_sibling_mask(int cpu) +{ + return cpumask_of(cpu); +} #endif /* CONFIG_SMP */ @@ -149,7 +178,9 @@ extern int smt_enabled_at_boot; extern int smp_mpic_probe(void); extern void smp_mpic_setup_cpu(int cpu); -extern void smp_generic_kick_cpu(int nr); +extern int smp_generic_kick_cpu(int nr); +extern int smp_generic_cpu_bootable(unsigned int nr); + extern void smp_generic_give_timebase(void); extern void smp_generic_take_timebase(void); @@ -169,6 +200,7 @@ extern unsigned long __secondary_hold_spinloop; extern unsigned long __secondary_hold_acknowledge; extern char __secondary_hold; +extern void __early_start(void); #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ |
