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From: Grant Grundler <grundler@cup.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] Re: PCI DAC routines for SN
Date: Tue, 23 Apr 2002 01:34:00 +0000	[thread overview]
Message-ID: <marc-linux-ia64-105590701905511@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590701905493@msgid-missing>

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


  parent reply	other threads:[~2002-04-23  1:34 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-04-22 22:34 [Linux-ia64] Re: PCI DAC routines for SN David Mosberger
2002-04-22 22:39 ` Jesse Barnes
2002-04-22 23:07 ` David Mosberger
2002-04-22 23:40 ` Jesse Barnes
2002-04-23  1:34 ` Grant Grundler [this message]
2002-04-23 21:11 ` Grant Grundler
2002-04-24  4:04 ` David S. Miller
2002-04-24  5:49 ` Jesse Barnes
2002-04-24  5:50 ` David S. Miller
2002-04-24 16:13 ` Grant Grundler
2002-04-24 17:39 ` David S. Miller
2002-04-24 17:40 ` David S. Miller
2002-04-24 19:45 ` Jesse Barnes
2002-04-24 23:13 ` Jesse Barnes
2002-04-24 23:53 ` David S. Miller
2002-04-25  0:08 ` David S. Miller
2002-04-25  0:11 ` Jesse Barnes
2002-04-25  0:17 ` David S. Miller
2002-04-25  0:21 ` Jesse Barnes
2002-04-25  0:36 ` Jesse Barnes
2002-04-25  0:43 ` David S. Miller
2002-04-25  1:00 ` David S. Miller
2002-04-25  1:01 ` Jesse Barnes
2002-04-25  1:22 ` Jesse Barnes

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