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Date:      Wed, 26 May 2010 12:20:42 +0200
From:      Gary Jennejohn <gljennjohn@googlemail.com>
To:        fbsdmail@dnswatch.com
Cc:        freebsd-amd64@freebsd.org
Subject:   Re: A couple of AMD kernel config questions
Message-ID:  <20100526122042.3a0321ff@ernst.jennejohn.org>
In-Reply-To: <0bb3000bdf423ee8f4fde8d10baa0fbb.dnswclient@www.dnswatch.com>
References:  <0bb3000bdf423ee8f4fde8d10baa0fbb.dnswclient@www.dnswatch.com>

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On Wed, 26 May 2010 02:14:34 -0700 (PDT)
fbsdmail@dnswatch.com wrote:

> Greetings,
>  I'm experimenting with an AMD Athlon X2 CPU:
> http://www.amd.com/us/products/desktop/processors/athlon-x2/Pages/AMD-athlon-x2-processor-model-numbers-feature-comparison.aspx
> 
> I just got. This will be the first AMD based kernel I've built.
> So I find myself with a couple of questions I'm hoping someone
> here can assist with.
> As I understand it, this CPU is a K9, does the following line
> from GENERIC still apply?
> cpu		HAMMER			# aka K8, aka Opteron & Athlon64
> 

Yes.  Doesn't really mean anything.  I have an X2 and that's the cpu
setting in my kernel config.

> I noticed the following in NOTES
> # x86 real mode BIOS emulator, required by atkbdc/dpms/vesa
> options		X86BIOS
> 
> If I include VESA support in the kernel, will I also need to add the
> that entry to obtain keyboard && VESA support?
> 

Look at /sys/conf/files.amd64.  The BIOS emulator is automatically
included if you have VESA in you config file.

> Any other AMD specific tweaks I should apply?
> Any comments/suggestions anyone wouls care to offer, will be grsatly
> appreciated.
> 

If your mother board allows it and you have SATA drives I suggest
including ATA_CAM and enabling AHCI in the BIOS.  That allows,
among other things, hot swapping drives.

--
Gary Jennejohn



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