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From: hpa@zytor.com (H. Peter Anvin)
To: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Intel x86-64 support merge
Date: Wed, 18 Feb 2004 22:57:31 +0000 (UTC)	[thread overview]
Message-ID: <c10qkr$gdu$1@terminus.zytor.com> (raw)
In-Reply-To: 1077139308.4479.8.camel@laptop.fenrus.com

Followup to:  <1077139308.4479.8.camel@laptop.fenrus.com>
By author:    Arjan van de Ven <arjan@fenrus.demon.nl>
In newsgroup: linux.dev.kernel
>
> On Wed, 2004-02-18 at 20:44, Linux Kernel Mailing List wrote:
> 
> > 	The ugliest part is probably the swiotlb code.  In fact the code for
> > 	that is not even included, but just reused from IA64.  swiotlb
> > 	implements the PCI DMA API using bounce buffering.  I don't like this at
> > 	all, but there was no other way to support non DAC capable hardware
> > 	(like IDE or USB) on machines with >3GB.  Please redirect all flames for
> > 	that to the Intel chipset designers.
> 
> ehm... so why on earth did Intel cripple this new platform?????
> 

Because they were caught by surprise and just hacked the chips they
had in the pipeline, presumably.

	-hpa

  reply	other threads:[~2004-02-18 22:58 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200402182006.i1IK6CsS022562@hera.kernel.org>
2004-02-18 21:21 ` [PATCH] Intel x86-64 support merge Arjan van de Ven
2004-02-18 22:57   ` H. Peter Anvin [this message]
2004-02-18 23:16     ` Arjan van de Ven
     [not found] <1qHr5-2tJ-39@gated-at.bofh.it>
     [not found] ` <1qHr5-2tJ-37@gated-at.bofh.it>
     [not found]   ` <1qIZw-6b9-17@gated-at.bofh.it>
     [not found]     ` <1qJsI-6Be-57@gated-at.bofh.it>
2004-02-19  0:05       ` David Mosberger-Tang
2004-02-19  9:36         ` David Weinehall
     [not found] <1qK5k-7g2-67@gated-at.bofh.it>
     [not found] ` <1qK5k-7g2-69@gated-at.bofh.it>
     [not found]   ` <1qK5k-7g2-71@gated-at.bofh.it>
     [not found]     ` <1qK5k-7g2-73@gated-at.bofh.it>
     [not found]       ` <1qK5k-7g2-65@gated-at.bofh.it>
2004-02-19 22:06         ` Bill Davidsen
2004-02-20  4:03           ` David Mosberger-Tang
2004-02-20  4:19           ` Jeff Garzik
2004-02-20  7:48             ` Jes Sorensen
2004-02-21  2:07               ` David Mosberger

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