diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/spufs.h')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/spufs.h | 55 |
1 files changed, 52 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index 67aff57faf6..93c6a053756 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -35,15 +35,50 @@ enum { SPUFS_MAGIC = 0x23c9b64e, }; +struct spu_context_ops; + struct spu_context { struct spu *spu; /* pointer to a physical SPU */ struct spu_state csa; /* SPU context save area. */ - struct rw_semaphore backing_sema; /* protects the above */ spinlock_t mmio_lock; /* protects mmio access */ + struct address_space *local_store;/* local store backing store */ + + enum { SPU_STATE_RUNNABLE, SPU_STATE_SAVED } state; + struct rw_semaphore state_sema; + + struct mm_struct *owner; struct kref kref; + wait_queue_head_t ibox_wq; + wait_queue_head_t wbox_wq; + struct fasync_struct *ibox_fasync; + struct fasync_struct *wbox_fasync; + struct spu_context_ops *ops; +}; + +/* SPU context query/set operations. */ +struct spu_context_ops { + int (*mbox_read) (struct spu_context * ctx, u32 * data); + u32(*mbox_stat_read) (struct spu_context * ctx); + int (*ibox_read) (struct spu_context * ctx, u32 * data); + int (*wbox_write) (struct spu_context * ctx, u32 data); + u32(*signal1_read) (struct spu_context * ctx); + void (*signal1_write) (struct spu_context * ctx, u32 data); + u32(*signal2_read) (struct spu_context * ctx); + void (*signal2_write) (struct spu_context * ctx, u32 data); + void (*signal1_type_set) (struct spu_context * ctx, u64 val); + u64(*signal1_type_get) (struct spu_context * ctx); + void (*signal2_type_set) (struct spu_context * ctx, u64 val); + u64(*signal2_type_get) (struct spu_context * ctx); + u32(*npc_read) (struct spu_context * ctx); + void (*npc_write) (struct spu_context * ctx, u32 data); + u32(*status_read) (struct spu_context * ctx); + char*(*get_ls) (struct spu_context * ctx); }; +extern struct spu_context_ops spu_hw_ops; +extern struct spu_context_ops spu_backing_ops; + struct spufs_inode_info { struct spu_context *i_ctx; struct inode vfs_inode; @@ -60,14 +95,28 @@ long spufs_create_thread(struct nameidata *nd, const char *name, unsigned int flags, mode_t mode); /* context management */ -struct spu_context * alloc_spu_context(void); +struct spu_context * alloc_spu_context(struct address_space *local_store); void destroy_spu_context(struct kref *kref); struct spu_context * get_spu_context(struct spu_context *ctx); int put_spu_context(struct spu_context *ctx); +void spu_forget(struct spu_context *ctx); void spu_acquire(struct spu_context *ctx); void spu_release(struct spu_context *ctx); -void spu_acquire_runnable(struct spu_context *ctx); +int spu_acquire_runnable(struct spu_context *ctx); void spu_acquire_saved(struct spu_context *ctx); +int spu_activate(struct spu_context *ctx, u64 flags); +void spu_deactivate(struct spu_context *ctx); +void spu_yield(struct spu_context *ctx); +int __init spu_sched_init(void); +void __exit spu_sched_exit(void); + +size_t spu_wbox_write(struct spu_context *ctx, u32 data); +size_t spu_ibox_read(struct spu_context *ctx, u32 *data); + +/* irq callback funcs. */ +void spufs_ibox_callback(struct spu *spu); +void spufs_wbox_callback(struct spu *spu); + #endif |