From mboxrd@z Thu Jan  1 00:00:00 1970
From: Grant Grundler <grundler@cup.hp.com>
Date: Tue, 23 Apr 2002 01:34:00 +0000
Subject: Re: [Linux-ia64] Re: PCI DAC routines for SN
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To: linux-ia64@vger.kernel.org

Jesse Barnes wrote:
> Except that pci_alloc_consistent is supposed to return a 32 bit
> address...

And why is that a problem?
Doesn't (or couldn't) swiotlb allocate memory from a "DMA ZONE"?
(I've only worked on real IOMMU support for parisc-linux)

or do you have a driver/system config that might exhaust available
32-bit address space?

BTW, I agree the DAC support and SAC for pci_alloc_consistent()
is, uhm, not very clear.

thanks,
grant