From: Dave Jones <davej@codemonkey.org.uk>
To: Stephan von Krawczynski <skraw@ithnet.com>,
Mark Hahn <hahn@physics.mcmaster.ca>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: no more MTRRs available ?
Date: Wed, 29 Jan 2003 16:52:48 +0000 [thread overview]
Message-ID: <20030129165248.GC1856@codemonkey.org.uk> (raw)
In-Reply-To: <20030129161446.GB32294@codemonkey.org.uk>
On Wed, Jan 29, 2003 at 04:14:46PM +0000, Dave Jones wrote:
> > # cat /proc/mtrr
> > reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1
> > reg01: base=0x80000000 (2048MB), size=1024MB: write-back, count=1
> > reg02: base=0xc0000000 (3072MB), size= 512MB: write-back, count=1
> > reg03: base=0xe0000000 (3584MB), size= 256MB: write-back, count=1
> > reg04: base=0xf0000000 (3840MB), size= 128MB: write-back, count=1
> > reg05: base=0xf7000000 (3952MB), size= 16MB: uncachable, count=1
> Due to this 16MB hole, your BIOS has to set up a write-back range
> covering 2048-16 (2032MB).
Dummies guide to maths. This should be 4096-16=4080 of course
Dave
--
| Dave Jones. http://www.codemonkey.org.uk
| SuSE Labs
next prev parent reply other threads:[~2003-01-29 16:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-29 15:23 no more MTRRs available ? Stephan von Krawczynski
[not found] ` <Pine.LNX.4.44.0301291025240.18828-100000@coffee.psychology.mcmaster.ca>
2003-01-29 15:45 ` Stephan von Krawczynski
[not found] ` <Pine.LNX.4.44.0301291046490.18828-100000@coffee.psychology.mcmaster.ca>
2003-01-29 16:05 ` Stephan von Krawczynski
2003-01-29 16:20 ` Dave Jones
2003-01-29 17:15 ` Stephan von Krawczynski
2003-01-29 16:14 ` Dave Jones
2003-01-29 16:52 ` Dave Jones [this message]
2003-01-29 17:20 ` William Lee Irwin III
2003-01-29 17:48 ` Dave Jones
2003-01-29 18:00 ` William Lee Irwin III
2003-01-29 18:12 ` Dave Jones
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