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SubjectRe: how to get virtual address from dma address
>>>>> "Linux" == Linux Bigot <> writes:

Linux> oops! I am sorry. I did not meant "pci_unmap_single"
Linux> pci_unmap_single.

Linux> I meant to get a routine which does exactly opposite of what
Linux> pci_map_single does, i.e., give me a virtual address for a dma
Linux> address.

Because it is cheaper for you to keep both addresses in the driver
than it is to implement a database to keep track of it for you.

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