HPC_DMA_SIZE
end = start + HPC_DMA_SIZE;
hdata->cpu = dma_alloc_noncoherent(&pdev->dev, HPC_DMA_SIZE,
dma_free_noncoherent(&pdev->dev, HPC_DMA_SIZE, hdata->cpu, hdata->dma,
dma_free_noncoherent(&pdev->dev, HPC_DMA_SIZE, hdata->cpu, hdata->dma,