diff options
Diffstat (limited to 'include/asm-powerpc/spu.h')
| -rw-r--r-- | include/asm-powerpc/spu.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h index 83b6dae48efc..e73ea00efd8b 100644 --- a/include/asm-powerpc/spu.h +++ b/include/asm-powerpc/spu.h @@ -201,6 +201,24 @@ static inline void unregister_spu_syscalls(struct spufs_calls *calls) /* + * Notifier blocks: + * + * oprofile can get notified when a context switch is performed + * on an spe. The notifer function that gets called is passed + * a pointer to the SPU structure as well as the object-id that + * identifies the binary running on that SPU now. + * + * For a context save, the object-id that is passed is zero, + * identifying that the kernel will run from that moment on. + * + * For a context restore, the object-id is the value written + * to object-id spufs file from user space and the notifer + * function can assume that spu->ctx is valid. + */ +int spu_switch_event_register(struct notifier_block * n); +int spu_switch_event_unregister(struct notifier_block * n); + +/* * This defines the Local Store, Problem Area and Privlege Area of an SPU. */ |
