diff options
| -rw-r--r-- | arch/powerpc/platforms/cell/spu_base.c | 21 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/sched.c | 5 | ||||
| -rw-r--r-- | include/asm-powerpc/spu.h | 10 |
3 files changed, 29 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index caaf2bf78cad..dd632e5feff3 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -41,7 +41,6 @@ EXPORT_SYMBOL_GPL(spu_management_ops); const struct spu_priv1_ops *spu_priv1_ops; -static struct list_head spu_list[MAX_NUMNODES]; static LIST_HEAD(spu_full_list); static DEFINE_MUTEX(spu_mutex); static DEFINE_SPINLOCK(spu_list_lock); @@ -429,8 +428,9 @@ struct spu *spu_alloc_node(int node) struct spu *spu = NULL; mutex_lock(&spu_mutex); - if (!list_empty(&spu_list[node])) { - spu = list_entry(spu_list[node].next, struct spu, list); + if (!list_empty(&cbe_spu_info[node].free_spus)) { + spu = list_entry(cbe_spu_info[node].free_spus.next, struct spu, + list); list_del_init(&spu->list); pr_debug("Got SPU %d %d\n", spu->number, spu->node); } @@ -459,7 +459,7 @@ struct spu *spu_alloc(void) void spu_free(struct spu *spu) { mutex_lock(&spu_mutex); - list_add_tail(&spu->list, &spu_list[spu->node]); + list_add_tail(&spu->list, &cbe_spu_info[spu->node].free_spus); mutex_unlock(&spu_mutex); } EXPORT_SYMBOL_GPL(spu_free); @@ -582,7 +582,9 @@ static int __init create_spu(void *data) mutex_lock(&spu_mutex); spin_lock_irqsave(&spu_list_lock, flags); - list_add(&spu->list, &spu_list[spu->node]); + list_add(&spu->list, &cbe_spu_info[spu->node].free_spus); + list_add(&spu->cbe_list, &cbe_spu_info[spu->node].spus); + cbe_spu_info[spu->node].n_spus++; list_add(&spu->full_list, &spu_full_list); spin_unlock_irqrestore(&spu_list_lock, flags); mutex_unlock(&spu_mutex); @@ -650,12 +652,17 @@ static ssize_t spu_stat_show(struct sys_device *sysdev, char *buf) static SYSDEV_ATTR(stat, 0644, spu_stat_show, NULL); +struct cbe_spu_info cbe_spu_info[MAX_NUMNODES]; +EXPORT_SYMBOL_GPL(cbe_spu_info); + static int __init init_spu_base(void) { int i, ret = 0; - for (i = 0; i < MAX_NUMNODES; i++) - INIT_LIST_HEAD(&spu_list[i]); + for (i = 0; i < MAX_NUMNODES; i++) { + INIT_LIST_HEAD(&cbe_spu_info[i].spus); + INIT_LIST_HEAD(&cbe_spu_info[i].free_spus); + } if (!spu_management_ops) goto out; diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 12c09665404d..6d0ab72cc70e 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -231,6 +231,9 @@ static void spu_bind_context(struct spu *spu, struct spu_context *ctx) spu->number, spu->node); spuctx_switch_state(ctx, SPU_UTIL_SYSTEM); + if (ctx->flags & SPU_CREATE_NOSCHED) + atomic_inc(&cbe_spu_info[spu->node].reserved_spus); + ctx->stats.slb_flt_base = spu->stats.slb_flt; ctx->stats.class2_intr_base = spu->stats.class2_intr; @@ -267,6 +270,8 @@ static void spu_unbind_context(struct spu *spu, struct spu_context *ctx) spu->pid, spu->number, spu->node); spuctx_switch_state(ctx, SPU_UTIL_SYSTEM); + if (spu->ctx->flags & SPU_CREATE_NOSCHED) + atomic_dec(&cbe_spu_info[spu->node].reserved_spus); spu_switch_notify(spu, NULL); spu_unmap_mappings(ctx); spu_save(&ctx->csa, spu); diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h index 12442acdc76f..2f2fe9f1c097 100644 --- a/include/asm-powerpc/spu.h +++ b/include/asm-powerpc/spu.h @@ -122,6 +122,7 @@ struct spu { struct spu_problem __iomem *problem; struct spu_priv2 __iomem *priv2; struct list_head list; + struct list_head cbe_list; struct list_head sched_list; struct list_head full_list; int number; @@ -181,6 +182,15 @@ struct spu { } stats; }; +struct cbe_spu_info { + struct list_head spus; + struct list_head free_spus; + int n_spus; + atomic_t reserved_spus; +}; + +extern struct cbe_spu_info cbe_spu_info[]; + struct spu *spu_alloc(void); struct spu *spu_alloc_node(int node); void spu_free(struct spu *spu); |