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Date: Fri, 26 Apr 2013 10:06:23 +0800
From: Chen Gang <gang.chen@asianux.com>
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To: Mike Qiu <qiudayu@linux.vnet.ibm.com>
Subject: Re: [PATCH v2] PowerPC: kernel: compiling issue, make additional
 room in exception vector area
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Cc: sfr@canb.auug.org.au, Michael Neuling <mikey@neuling.org>, matt@ozlabs.org,
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On 2013年04月26日 10:03, Mike Qiu wrote:
> �� 2013/4/26 9:36, Chen Gang �:
>> > 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