linux-kernel - Specific support for Intel Atom architecture

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Message-Id: <200904301408.09370.tobias.doerffel@gmail.com>
Date:	Thu, 30 Apr 2009 14:08:04 +0200
From:	Tobias Doerffel <tobias.doerffel@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: Specific support for Intel Atom architecture

Hi,

as some of you already might know, work is going on to make GCC fully support 
Intel Atom architecture specifics, i.e. make -mtune=atom generate code 
optimized for in-order architectures like Intel Atom [1].

I therefore started to make up a small patch which adds Intel Atom as a new 
processor family which can be selected upon configuration. It's nothing 
special and also requires a patched GCC. I'd just like to get some feedback on 
it, i.e. is X86_L1_CACHE_SHIFT=6 ok for Atom CPUs (I was not able to find any 
information on Atom's cacheline size)? Any chance to include this patch once 
the Atom patch went into GCC mainline (probably in GCC 4.5)? Any other 
objections?

Please Cc me, I'm not on the list.

Regards,

Tobias

[1] http://gcc.gnu.org/viewcvs/branches/ix86/atom/

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