From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Michael Neuling <mikey@neuling.org>
To: Anton Blanchard <anton@samba.org>
Subject: Re: [PATCH 1/3] powerpc: POWER7 optimised copy_page using VMX
In-reply-to: <20110617045421.538184870@samba.org>
References: <20110617045358.544896830@samba.org>
	<20110617045421.538184870@samba.org>
Date: Fri, 17 Jun 2011 15:16:07 +1000
Message-ID: <27834.1308287767@neuling.org>
Cc: paulus@samba.org, linuxppc-dev@lists.ozlabs.org
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> Implement a POWER7 optimised copy_page using VMX. We copy a cacheline
> at a time using VMX loads and stores.
> 
> Signed-off-by: Anton Blanchard <anton@samba.org>
> ---
> 
> How do we want to handle per machine optimised functions? I create
> yet another feature bit, but feature bits might get out of control
> at some point.

Yeah, I'm pretty against CPU_FTR_POWER7.  Every loon is going to attach
anything POWER7 to it.  

I'm keen to see it setup in  __setup_cpu_power7.  Either a function
pointer or use the patch_instruction infrastructure to avoid indirect
function calls on small copies.  

Mikey