From: Timur Tabi <ttabi@interactivesi.com>
To: Linux Kernel Mailing list <linux-kernel@vger.kernel.org>
Cc: Linux MM mailing list <linux-mm@kvack.org>
Subject: Re: Page Attribute Table (PAT) support?
Date: Wed, 24 Jan 2001 14:30:10 -0600 [thread overview]
Message-ID: <20010124202725Z131205-222+37@kanga.kvack.org> (raw)
In-Reply-To: <3A6F22D7.3000709@valinux.com>
** Reply to message from Jeff Hartmann <jhartmann@valinux.com> on Wed, 24 Jan
2001 11:45:43 -0700
> I'm actually writing support for the PAT as we speak. I already have
> working code for PAT setup. Just having a parameter for ioremap is not
> enough, unfortunately. According to the Intel Architecture Software
> Developer's Manual we have to remove all mappings of the page that are
> cached.
For our specific purposes, that's not important. We already flush the cache
before we create uncached regions (via ioremap_nocache). I understand that as a
general Linux feature, you can't ignore cache incoherency, but I don't think
it's a hard requirement.
--
Timur Tabi - ttabi@interactivesi.com
Interactive Silicon - http://www.interactivesi.com
When replying to a mailing-list message, please direct the reply to the mailing list only. Don't send another copy to me.
--
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next prev parent reply other threads:[~2001-01-24 20:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20010124174824Z129401-18594+948@vger.kernel.org>
2001-01-24 18:45 ` Jeff Hartmann
2001-01-24 18:50 ` Timur Tabi
2001-01-24 20:30 ` Timur Tabi [this message]
2001-01-24 20:30 ` Timur Tabi
2001-01-24 20:41 ` Jeff Hartmann
2001-01-24 20:48 ` Timur Tabi
[not found] ` <20010124204811Z129375-18594+1059@vger.kernel.org>
2001-01-24 21:15 ` Jeff Hartmann
2001-01-24 21:31 ` Timur Tabi
[not found] ` <20010124185046Z131368-18595+642@vger.kernel.org>
2001-01-24 19:30 ` Jeff Hartmann
2001-01-24 17:48 Timur Tabi
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