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Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/run.c')
-rw-r--r--arch/powerpc/platforms/cell/spufs/run.c38
1 files changed, 23 insertions, 15 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index a9c35b7b719..b7493b86581 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -11,7 +11,7 @@
#include "spufs.h"
/* interrupt-level stop callback function. */
-void spufs_stop_callback(struct spu *spu)
+void spufs_stop_callback(struct spu *spu, int irq)
{
struct spu_context *ctx = spu->ctx;
@@ -24,9 +24,19 @@ void spufs_stop_callback(struct spu *spu)
*/
if (ctx) {
/* Copy exception arguments into module specific structure */
- ctx->csa.class_0_pending = spu->class_0_pending;
- ctx->csa.dsisr = spu->dsisr;
- ctx->csa.dar = spu->dar;
+ switch(irq) {
+ case 0 :
+ ctx->csa.class_0_pending = spu->class_0_pending;
+ ctx->csa.class_0_dsisr = spu->class_0_dsisr;
+ ctx->csa.class_0_dar = spu->class_0_dar;
+ break;
+ case 1 :
+ ctx->csa.class_1_dsisr = spu->class_1_dsisr;
+ ctx->csa.class_1_dar = spu->class_1_dar;
+ break;
+ case 2 :
+ break;
+ }
/* ensure that the exception status has hit memory before a
* thread waiting on the context's stop queue is woken */
@@ -34,11 +44,6 @@ void spufs_stop_callback(struct spu *spu)
wake_up_all(&ctx->stop_wq);
}
-
- /* Clear callback arguments from spu structure */
- spu->class_0_pending = 0;
- spu->dsisr = 0;
- spu->dar = 0;
}
int spu_stopped(struct spu_context *ctx, u32 *stat)
@@ -56,7 +61,11 @@ int spu_stopped(struct spu_context *ctx, u32 *stat)
if (!(*stat & SPU_STATUS_RUNNING) && (*stat & stopped))
return 1;
- dsisr = ctx->csa.dsisr;
+ dsisr = ctx->csa.class_0_dsisr;
+ if (dsisr & (MFC_DSISR_PTE_NOT_FOUND | MFC_DSISR_ACCESS_DENIED))
+ return 1;
+
+ dsisr = ctx->csa.class_1_dsisr;
if (dsisr & (MFC_DSISR_PTE_NOT_FOUND | MFC_DSISR_ACCESS_DENIED))
return 1;
@@ -294,7 +303,7 @@ static int spu_process_callback(struct spu_context *ctx)
u32 ls_pointer, npc;
void __iomem *ls;
long spu_ret;
- int ret, ret2;
+ int ret;
/* get syscall block from local store */
npc = ctx->ops->npc_read(ctx) & ~3;
@@ -316,11 +325,9 @@ static int spu_process_callback(struct spu_context *ctx)
if (spu_ret <= -ERESTARTSYS) {
ret = spu_handle_restartsys(ctx, &spu_ret, &npc);
}
- ret2 = spu_acquire(ctx);
+ mutex_lock(&ctx->state_mutex);
if (ret == -ERESTARTSYS)
return ret;
- if (ret2)
- return -EINTR;
}
/* need to re-get the ls, as it may have changed when we released the
@@ -343,13 +350,14 @@ long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *event)
if (mutex_lock_interruptible(&ctx->run_mutex))
return -ERESTARTSYS;
- spu_enable_spu(ctx);
ctx->event_return = 0;
ret = spu_acquire(ctx);
if (ret)
goto out_unlock;
+ spu_enable_spu(ctx);
+
spu_update_sched_info(ctx);
ret = spu_run_init(ctx, npc);