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Date:      Thu, 13 Feb 2003 14:01:48 -0800
From:      Peter Wemm <peter@wemm.org>
To:        Dag-Erling Smorgrav <des@ofug.org>
Cc:        src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/modules Makefile 
Message-ID:  <20030213220148.C3BB02A89E@canning.wemm.org>
In-Reply-To: <xzpznozsvrz.fsf@flood.ping.uio.no> 

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Dag-Erling Smorgrav wrote:
> Peter Wemm <peter@FreeBSD.org> writes:
> >   Log:
> >   We only provide agp drivers for the intel chipsets, move the agp
> >   subdir to the i386-only section.
> 
> Some Alphas have AGP slots.

Indeed, but we do not have drivers for them.  Even the nearest likely
candidate (agp_amd.c which *might* be usable with an alpha cpu, if
anybody has made such a motherboard) has i386-specific stuff in it.
And then there are things like this:
agp_flush_cache()
{
#ifdef __i386__
        wbinvd();
#endif
}
.. which are there to "make it compile" rather than actually work. Having
this being built by default is just wasting compile time on non-i386
systems, especially since it isn't a state ready to be used yet.

Cheers,
-Peter
--
Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5


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