diff options
Diffstat (limited to 'arch/tile/include/asm/system.h')
| -rw-r--r-- | arch/tile/include/asm/system.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/tile/include/asm/system.h b/arch/tile/include/asm/system.h index d6ca7f816c8..0935094f370 100644 --- a/arch/tile/include/asm/system.h +++ b/arch/tile/include/asm/system.h @@ -160,6 +160,14 @@ struct task_struct; extern struct task_struct *_switch_to(struct task_struct *prev, struct task_struct *next); +/* Helper function for _switch_to(). */ +extern struct task_struct *__switch_to(struct task_struct *prev, + struct task_struct *next, + unsigned long new_system_save_1_0); + +/* Address that switched-away from tasks are at. */ +extern unsigned long get_switch_to_pc(void); + /* * On SMP systems, when the scheduler does migration-cost autodetection, * it needs a way to flush as much of the CPU's caches as possible: @@ -187,10 +195,26 @@ extern int unaligned_printk; /* Number of unaligned fixups performed */ extern unsigned int unaligned_fixup_count; +/* Init-time routine to do tile-specific per-cpu setup. */ +void setup_cpu(int boot); + /* User-level DMA management functions */ void grant_dma_mpls(void); void restrict_dma_mpls(void); +#ifdef CONFIG_HARDWALL +/* User-level network management functions */ +void reset_network_state(void); +void grant_network_mpls(void); +void restrict_network_mpls(void); +int hardwall_deactivate(struct task_struct *task); + +/* Hook hardwall code into changes in affinity. */ +#define arch_set_cpus_allowed(p, new_mask) do { \ + if (p->thread.hardwall && !cpumask_equal(&p->cpus_allowed, new_mask)) \ + hardwall_deactivate(p); \ +} while (0) +#endif /* Invoke the simulator "syscall" mechanism (see arch/tile/kernel/entry.S). */ extern int _sim_syscall(int syscall_num, ...); @@ -215,6 +239,12 @@ extern int _sim_syscall(int syscall_num, ...); homecache_migrate_kthread(); \ } while (0) +/* Support function for forking a new task. */ +void ret_from_fork(void); + +/* Called from ret_from_fork() when a new process starts up. */ +struct task_struct *sim_notify_fork(struct task_struct *prev); + #endif /* !__ASSEMBLY__ */ #endif /* _ASM_TILE_SYSTEM_H */ |