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Date:      Fri, 2 Aug 2002 18:17:52 -0700
From:      David Greenman-Lawrence <dg@dglawrence.com>
To:        Peter Wemm <peter@FreeBSD.org>
Cc:        cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/i386/i386 pmap.c
Message-ID:  <20020802181752.C54567@nexus.root.com>
In-Reply-To: <200208030102.g7312bD2045313@freefall.freebsd.org>; from peter@FreeBSD.org on Fri, Aug 02, 2002 at 06:02:37PM -0700
References:  <200208030102.g7312bD2045313@freefall.freebsd.org>

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>peter       2002/08/02 18:02:37 PDT
>
>  Modified files:
>    sys/i386/i386        pmap.c 
>  Log:
>  Take advantage of the fact that there is a small 1MB direct mapped region
>  on x86 in between KERNBASE and the kernel load address.  pmap_mapdev()
>  can return pointers to this for devices operating in the isa "hole".

   Actually the mapping of the low 1MB of physical address space was a Jolitz
abortion which I had hoped to someday remove.

-DG

D.G.Lawrence
Download Technologies, Inc. - http://www.downloadtech.com - (866) 399 8500
TeraSolutions, Inc. - http://www.terasolutions.com - (503) 288 9544
The FreeBSD Project - http://www.freebsd.org
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