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In-Reply-To: <E6D8678E-33FD-492F-A773-12B0F87C2EBB@freescale.com>
References: <20050714125232.GA13456@janus>
	<E6D8678E-33FD-492F-A773-12B0F87C2EBB@freescale.com>
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From: Segher Boessenkool <segher@kernel.crashing.org>
Date: Thu, 14 Jul 2005 22:48:26 +0200
To: Kumar Gala <kumar.gala@freescale.com>
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Cc: linuxppc-dev@ozlabs.org
Subject: Re: Using lswi/stswi inside the kernel
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> Yes, not all PowerPC implementations actually implement this 
> instructions.  Also, on a number of them there is no performance 
> improvement when using the instructions.

Read: severe performance degradation ;-)


Segher