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Message-ID: <86802c440809291805r71877ad1wc68525c1ca0603e1@mail.gmail.com>
Date: Mon, 29 Sep 2008 18:05:51 -0700
From: "Yinghai Lu" <yinghai@kernel.org>
To: "=?ISO-8859-1?Q?J.A._Magall=F3n?=" <jamagallon@ono.com>
Subject: Re: Strange mtrrs in Aspire One
Cc: Linux-Kernel <linux-kernel@vger.kernel.org>
In-Reply-To: <20080930015733.5c6ea984@werewolf.home>
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On Mon, Sep 29, 2008 at 4:57 PM, J.A. Magallón <jamagallon@ono.com> wrote:
> Hi all...
>
> My aspire one is giving some strange MTRR settings with rc7-git5 (and
> prevous kernels, but that is what I run now...):
>
> one:~> cat /proc/mtrr
> reg00: base=0xfffe0000 (4095MB), size= 128KB: write-protect, count=1
> reg01: base=0xfffc0000 (4095MB), size= 128KB: uncachable, count=1

could make mtrr_cleanup to support 128K gran_size

> reg02: base=0x00000000 (   0MB), size= 256MB: write-back, count=1
> reg03: base=0x10000000 ( 256MB), size= 256MB: write-back, count=1
> reg04: base=0x1f800000 ( 504MB), size=   8MB: uncachable, count=1
> reg05: base=0x1f600000 ( 502MB), size=   2MB: uncachable, count=1
> reg06: base=0x1f500000 ( 501MB), size=   1MB: uncachable, count=1

> reg07: base=0x00000000 (   0MB), size= 128KB: uncachable, count=1
..
>  BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)

last entry is really sick...

YH