From: David Mosberger <davidm@hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] 2.4.16-ia64-011128 is missing dma64_addr_t
Date: Tue, 04 Dec 2001 19:54:18 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590698805598@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590698805568@msgid-missing>
>>>>> On Tue, 4 Dec 2001 09:45:19 +0100, Christoph Hellwig <hch@caldera.de> said:
Christoph> On Mon, Dec 03, 2001 at 11:34:28AM -0800, David Mosberger
Christoph> wrote:
>> This error appears to be due to a bug in the sym53c8xx_2 driver.
>> Note that dma64_addr_t should be used only for the pci_dac_*
>> interface, which I do not want to support on ia64 unless and
>> until we absolutely have to (technically, there is no need for
>> pci_dac_* on ia64 or x86).
Christoph> IA64 should use instead of it's horrible iommu emulation.
Huh? pci_dac_*() does not help you here at all. pci_dac_*() is only
needed/useful for 64-bit platforms which use a dma_addr_t that is
smaller than 64 bits. And even then is it needed only for drivers
that create tons of mappings.
--david
next prev parent reply other threads:[~2001-12-04 19:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-02 3:56 [Linux-ia64] 2.4.16-ia64-011128 is missing dma64_addr_t Keith Owens
2001-12-03 18:23 ` Gérard Roudier
2001-12-03 19:34 ` David Mosberger
2001-12-03 21:29 ` David Mosberger
2001-12-04 17:01 ` Gérard Roudier
2001-12-04 18:15 ` Gérard Roudier
2001-12-04 19:38 ` Gérard Roudier
2001-12-04 19:54 ` David Mosberger [this message]
2001-12-04 19:54 ` David Mosberger
2001-12-04 19:54 ` David Mosberger
2001-12-04 19:55 ` David Mosberger
2001-12-04 19:56 ` David Mosberger
2001-12-04 21:42 ` David Mosberger
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