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From: "Thomas Hellström" <thomas@tungstengraphics.com>
To: "Dave Jones" <davej@redhat.com>,
	"Thomas Hellström" <thomas@tungstengraphics.com>,
	"Linux Kernel" <linux-kernel@vger.kernel.org>
Subject: Re: Support for i386 PATs
Date: Tue, 30 Jan 2007 16:50:40 +0100	[thread overview]
Message-ID: <45BF6950.4080007@tungstengraphics.com> (raw)
In-Reply-To: <20070128214832.GD23903@redhat.com>

Dave Jones wrote:
> On Sat, Jan 27, 2007 at 10:20:18AM +0100, Thomas Hellström wrote:
>  > Hi!
>  > 
>  > Does anybody have a strong opinion against adding support for
>  > i386 Page Attribute Tables?
>
> It pops up about once a year, everyone agrees it'd be a good idea,
> and then nothing happens.  Last year, I started picking over
> Terrence Ripperda's original implementation, but that needs a bit
> of work. (http://lkml.org/lkml/2005/5/12/187)
> Whoa, two years even.  Time flies.
>
> 		Dave
>
>   
Ah.
This might explain why nothing happens :).

I had something much simpler in mind.
Just the basic PAT setup and some new pgprot_ types which affected 
drivers could use directly.

Like in(drivers/char/drm/drm_vm.c) where ia64 has a 
pgprot_writecombine() function.

/Thomas





  reply	other threads:[~2007-01-30 15:51 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-27  9:20 Thomas Hellström
2007-01-27  9:33 ` Avi Kivity
2007-01-28 21:48 ` Dave Jones
2007-01-30 15:50   ` Thomas Hellström [this message]
2007-01-27 10:59 Mikael Pettersson
2007-01-28  7:54 ` H. Peter Anvin

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