DMA mapping

From: Giuliano Procida (myxie@dev.madge.com)
Date: Tue Mar 07 2000 - 03:41:53 EST

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Could someone point me at the discussion that lead to current API? In
particular, I'm curious as to why there isn't a

void * pci_map_invert (pci_dev * device, dma_addr_t bus_addr)

and why ia64 has a 64-bit dma_addr_t.

Thanks,
Giuliano.

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