restart_dma
.restart_dma = spu_backing_restart_dma,
ctx->ops->restart_dma(ctx);
ctx->ops->restart_dma(ctx);
.restart_dma = spu_hw_restart_dma,
void (*restart_dma)(struct spu_context *ctx);
bool restart_dma = false;
restart_dma = true;
if (restart_dma) {
restart_dma(ep);
restart_dma(ep);
restart_dma(e);
restart_dma(e);
restart_dma(ep);