diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/spufs.h')
-rw-r--r-- | arch/powerpc/platforms/cell/spufs/spufs.h | 48 |
1 files changed, 33 insertions, 15 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index 0941c56df9b..0c437891dfd 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -23,7 +23,7 @@ #define SPUFS_H #include <linux/kref.h> -#include <linux/rwsem.h> +#include <linux/mutex.h> #include <linux/spinlock.h> #include <linux/fs.h> @@ -37,11 +37,13 @@ enum { }; struct spu_context_ops; - -#define SPU_CONTEXT_PREEMPT 0UL - struct spu_gang; +/* ctx->sched_flags */ +enum { + SPU_SCHED_WAKE = 0, +}; + struct spu_context { struct spu *spu; /* pointer to a physical SPU */ struct spu_state csa; /* SPU context save area. */ @@ -56,7 +58,7 @@ struct spu_context { u64 object_id; /* user space pointer for oprofile */ enum { SPU_STATE_RUNNABLE, SPU_STATE_SAVED } state; - struct rw_semaphore state_sema; + struct mutex state_mutex; struct semaphore run_sema; struct mm_struct *owner; @@ -77,6 +79,14 @@ struct spu_context { struct list_head gang_list; struct spu_gang *gang; + + /* scheduler fields */ + struct list_head rq; + struct delayed_work sched_work; + unsigned long sched_flags; + unsigned long rt_priority; + int policy; + int prio; }; struct spu_gang { @@ -161,6 +171,16 @@ void spu_gang_remove_ctx(struct spu_gang *gang, struct spu_context *ctx); void spu_gang_add_ctx(struct spu_gang *gang, struct spu_context *ctx); /* context management */ +static inline void spu_acquire(struct spu_context *ctx) +{ + mutex_lock(&ctx->state_mutex); +} + +static inline void spu_release(struct spu_context *ctx) +{ + mutex_unlock(&ctx->state_mutex); +} + struct spu_context * alloc_spu_context(struct spu_gang *gang); void destroy_spu_context(struct kref *kref); struct spu_context * get_spu_context(struct spu_context *ctx); @@ -168,20 +188,18 @@ int put_spu_context(struct spu_context *ctx); void spu_unmap_mappings(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); -int spu_acquire_runnable(struct spu_context *ctx); +int spu_acquire_runnable(struct spu_context *ctx, unsigned long flags); void spu_acquire_saved(struct spu_context *ctx); int spu_acquire_exclusive(struct spu_context *ctx); - -static inline void spu_release_exclusive(struct spu_context *ctx) -{ - up_write(&ctx->state_sema); -} - -int spu_activate(struct spu_context *ctx, u64 flags); +enum { + SPU_ACTIVATE_NOWAKE = 1, +}; +int spu_activate(struct spu_context *ctx, unsigned long flags); void spu_deactivate(struct spu_context *ctx); void spu_yield(struct spu_context *ctx); +void spu_start_tick(struct spu_context *ctx); +void spu_stop_tick(struct spu_context *ctx); +void spu_sched_tick(struct work_struct *work); int __init spu_sched_init(void); void __exit spu_sched_exit(void); |