Re: d63e2e1f3df breaks sparc/T5-8

[Yinghai Lu]

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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