On Fri, Mar 27, 2015 at 2:50 PM, David Miller <davem@xxxxxxxxxxxxx> wrote:
> All DMA occurs behind an IOMMU and these IOMMUs only
> support 32-bit addressing, therefore dma_addr_t is
> 32-bit on sparc64.
>
> If you want to represent PCI address in some way, you
> absolutely cannot use dma_addr_t as your data type.
Oh no, we missed that for a while.
Hi Bjorn,
I would suggest that we introduce pci_bus_addr_t or pci_addr_t.
Yinghai
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