spufs_wait
ret = spufs_wait(ctx->mfc_wq,
ret = spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE);
ret = spufs_wait(ctx->mfc_wq,
error = spufs_wait(ctx->switch_log->wait,
err = spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE);
count = spufs_wait(ctx->ibox_wq, spu_ibox_read(ctx, &ibox_data));
count = spufs_wait(ctx->wbox_wq, spu_wbox_write(ctx, wbox_data));
ret = spufs_wait(ctx->stop_wq, spu_stopped(ctx, &status));