diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/spufs.h')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/spufs.h | 64 |
1 files changed, 23 insertions, 41 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index ca47b991bda5..0e114038ea6f 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -71,6 +71,7 @@ struct spu_context { wait_queue_head_t wbox_wq; wait_queue_head_t stop_wq; wait_queue_head_t mfc_wq; + wait_queue_head_t run_wq; struct fasync_struct *ibox_fasync; struct fasync_struct *wbox_fasync; struct fasync_struct *mfc_fasync; @@ -168,8 +169,10 @@ struct spu_context_ops { void (*npc_write) (struct spu_context * ctx, u32 data); u32(*status_read) (struct spu_context * ctx); char*(*get_ls) (struct spu_context * ctx); + void (*privcntl_write) (struct spu_context *ctx, u64 data); u32 (*runcntl_read) (struct spu_context * ctx); void (*runcntl_write) (struct spu_context * ctx, u32 data); + void (*runcntl_stop) (struct spu_context * ctx); void (*master_start) (struct spu_context * ctx); void (*master_stop) (struct spu_context * ctx); int (*set_mfc_query)(struct spu_context * ctx, u32 mask, u32 mode); @@ -219,15 +222,16 @@ void spu_gang_add_ctx(struct spu_gang *gang, struct spu_context *ctx); /* fault handling */ int spufs_handle_class1(struct spu_context *ctx); +int spufs_handle_class0(struct spu_context *ctx); /* affinity */ struct spu *affinity_check(struct spu_context *ctx); /* context management */ extern atomic_t nr_spu_contexts; -static inline void spu_acquire(struct spu_context *ctx) +static inline int __must_check spu_acquire(struct spu_context *ctx) { - mutex_lock(&ctx->state_mutex); + return mutex_lock_interruptible(&ctx->state_mutex); } static inline void spu_release(struct spu_context *ctx) @@ -242,10 +246,11 @@ int put_spu_context(struct spu_context *ctx); void spu_unmap_mappings(struct spu_context *ctx); void spu_forget(struct spu_context *ctx); -int spu_acquire_runnable(struct spu_context *ctx, unsigned long flags); -void spu_acquire_saved(struct spu_context *ctx); +int __must_check spu_acquire_saved(struct spu_context *ctx); void spu_release_saved(struct spu_context *ctx); +int spu_stopped(struct spu_context *ctx, u32 * stat); +void spu_del_from_rq(struct spu_context *ctx); int spu_activate(struct spu_context *ctx, unsigned long flags); void spu_deactivate(struct spu_context *ctx); void spu_yield(struct spu_context *ctx); @@ -279,7 +284,9 @@ extern char *isolated_loader; } \ spu_release(ctx); \ schedule(); \ - spu_acquire(ctx); \ + __ret = spu_acquire(ctx); \ + if (__ret) \ + break; \ } \ finish_wait(&(wq), &__wait); \ __ret; \ @@ -306,41 +313,16 @@ struct spufs_coredump_reader { extern struct spufs_coredump_reader spufs_coredump_read[]; extern int spufs_coredump_num_notes; -/* - * This function is a little bit too large for an inline, but - * as fault.c is built into the kernel we can't move it out of - * line. - */ -static inline void spuctx_switch_state(struct spu_context *ctx, - enum spu_utilization_state new_state) -{ - unsigned long long curtime; - signed long long delta; - struct timespec ts; - struct spu *spu; - enum spu_utilization_state old_state; - - ktime_get_ts(&ts); - curtime = timespec_to_ns(&ts); - delta = curtime - ctx->stats.tstamp; - - WARN_ON(!mutex_is_locked(&ctx->state_mutex)); - WARN_ON(delta < 0); - - spu = ctx->spu; - old_state = ctx->stats.util_state; - ctx->stats.util_state = new_state; - ctx->stats.tstamp = curtime; - - /* - * Update the physical SPU utilization statistics. - */ - if (spu) { - ctx->stats.times[old_state] += delta; - spu->stats.times[old_state] += delta; - spu->stats.util_state = new_state; - spu->stats.tstamp = curtime; - } -} +extern int spu_init_csa(struct spu_state *csa); +extern void spu_fini_csa(struct spu_state *csa); +extern int spu_save(struct spu_state *prev, struct spu *spu); +extern int spu_restore(struct spu_state *new, struct spu *spu); +extern int spu_switch(struct spu_state *prev, struct spu_state *new, + struct spu *spu); +extern int spu_alloc_lscsa(struct spu_state *csa); +extern void spu_free_lscsa(struct spu_state *csa); + +extern void spuctx_switch_state(struct spu_context *ctx, + enum spu_utilization_state new_state); #endif |