Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758442Ab3DZDI4 (ORCPT ); Thu, 25 Apr 2013 23:08:56 -0400 Received: from e23smtp01.au.ibm.com ([202.81.31.143]:45508 "EHLO e23smtp01.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757955Ab3DZDIy (ORCPT ); Thu, 25 Apr 2013 23:08:54 -0400 Message-ID: <5179EFB6.3090602@linux.vnet.ibm.com> Date: Fri, 26 Apr 2013 11:08:38 +0800 From: Mike Qiu User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20130328 Thunderbird/17.0.5 MIME-Version: 1.0 To: Chen Gang 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> <5179E11F.8010007@asianux.com> In-Reply-To: <5179E11F.8010007@asianux.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13042603-1618-0000-0000-000003C4E720 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1358 Lines: 39 于 2013/4/26 10:06, Chen Gang 写道: > 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) It seems that the machine can be bootup in powernv mode, but I'm not sure if my machine call that module. At lease my machine can boot up Thanks Mike > > :-) > -- 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/