From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 96A482C00C6 for ; Sun, 28 Apr 2013 01:15:58 +1000 (EST) In-Reply-To: <412C8208B4A0464FA894C5F0C278CD5D01C4C76D@039-SN1MPN1-002.039d.mgd.msft.net> References: <1366684776-10946-1-git-send-email-hongtao.jia@freescale.com> <1366684776-10946-2-git-send-email-hongtao.jia@freescale.com> <1366909096.30341.3@snotra> <412C8208B4A0464FA894C5F0C278CD5D01C4C76D@039-SN1MPN1-002.039d.mgd.msft.net> Mime-Version: 1.0 (Apple Message framework v753.1) Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: From: Segher Boessenkool Subject: Re: [PATCH 2/2 V7] powerpc/85xx: Add machine check handler to fix PCIe erratum on mpc85xx Date: Sat, 27 Apr 2013 15:31:58 +0200 To: Jia Hongtao-B38951 Cc: Wood Scott-B07421 , "linuxppc-dev@lists.ozlabs.org" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > In former email you doubt whether we need A variant or not. > Any particular reason for that? > If not should I emulate all the A ARX AU AUX and AX variant? A/AU/AX/AUX are just normal loads, sign-extended instead of zero-extended (so assign -1 to the register loaded). The ARX thing is load-locked, you do not want that one. Segher