On 11/22/2013 04:27 AM, Akinobu Mita wrote: > > I'm currently working for integrating DMA CMA with intel-iommu which > I can test. Regardless of which dma ops is actually used, I would > like to allocate large contiguous memory with dma_alloc_coherent() > and tell the base address to the device. > > We can use mem= or crashkernel= to reserve host memory, but it is > complicated and unables to work with real IOMMU. >
If you have a real iotlb, why would you need contiguous memory? -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/