Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759656Ab3DZCHM (ORCPT ); Thu, 25 Apr 2013 22:07:12 -0400 Received: from intranet.asianux.com ([58.214.24.6]:7326 "EHLO intranet.asianux.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758702Ab3DZCHK (ORCPT ); Thu, 25 Apr 2013 22:07:10 -0400 X-Spam-Score: -100.8 Message-ID: <5179E11F.8010007@asianux.com> Date: Fri, 26 Apr 2013 10:06:23 +0800 From: Chen Gang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 MIME-Version: 1.0 To: Mike Qiu CC: Michael Neuling , Paul Mackerras , Michael Ellerman , linuxppc-dev@lists.ozlabs.org, sfr@canb.auug.org.au, matt@ozlabs.org, linux-kernel@vger.kernel.org, "Aneesh Kumar K.V" Subject: Re: [PATCH v2] PowerPC: kernel: compiling issue, make additional room in exception vector area References: <5177965D.9090406@linux.vnet.ibm.com> <20130424083142.GB26834@concordia> <51779941.8080403@linux.vnet.ibm.com> <30651.1366799858@ale.ozlabs.ibm.com> <1366807638.5911.2.camel@localhost> <5178816D.3000309@asianux.com> <5178ABA2.4030109@linux.vnet.ibm.com> <20130425062539.GA421@iris.ozlabs.ibm.com> <517918AB.4020508@asianux.com> <30269.1366931768@ale.ozlabs.ibm.com> <5179D302.9060203@asianux.com> <5179D5D8.8080102@asianux.com> <5179DA23.8000407@asianux.com> <5179E056.2000709@linux.vnet.ibm.com> In-Reply-To: <5179E056.2000709@linux.vnet.ibm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1190 Lines: 35 On 2013年04月26日 10:03, Mike Qiu wrote: > �� 2013/4/26 9:36, Chen Gang д��: >> > On 2013��04��26�� 09:18, Chen Gang wrote: >>> >> On 2013��04��26�� 09:06, Chen Gang wrote: >>>>> >>>> CFAR is the Come From Register. It saves the location of the last >>>>>> >>>>> branch and is hence overwritten by any branch. >>>>>> >>>>> >>>> >>> Do we process it just like others done (e.g. 0x300, 0xe00, 0xe20 ...) ? >>>> >>> . = 0x900 >>>> >>> .globl decrementer_pSeries >>>> >>> decrementer_pSeries: >>>> >>> HMT_MEDIUM_PPR_DISCARD >>>> >>> SET_SCRATCH0(r13) >>>> >>> b decrementer_pSeries_0 >>>> >>> >>>> >>> ... >>>> >>> >>>> >>> >> > Oh, it seems EXCEPTION_PROLOG_1 will save the regesters which related >> > with CFAR, so I think need move EXCEPTION_PROLOG_1 to near 0x900. > I will try your diff V2, to see if the machine can boot up OK, thanks. (hope it can work) :-) -- Chen Gang Asianux Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/