linux-kernel - RE: [PATCH 09/10] x86-32: use SSE for atomic64

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Message-ID: <SNT125-W40D001F6B983BB840DE140C3470@phx.gbl>
Date:	Thu, 18 Feb 2010 11:45:47 -0800
From:	Yuhong Bao <yuhongbao_386@...mail.com>
To:	<hpa@...or.com>, <luca@...a-barbieri.com>
CC:	<andi@...stfloor.org>, <mingo@...e.hu>, <a.p.zijlstra@...llo.nl>,
	<akpm@...ux-foundation.org>, <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 09/10] x86-32: use SSE for atomic64_read/set if available



> We don't care about 486 SMP. 
Yep, I remember when a previous patch broke 486 SMP support and since then, seemed like nobody cared.The closest to such a system I have seen was P5 systems using the 82489DX APIC.Anybody have a dmesg of such a system?
Yuhong Bao 		 	   		  
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