[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CADyBb7tByoke4PGZqcx_jHvgCK0xNTneod8WoVv7VmoSYii+hg@mail.gmail.com>
Date: Tue, 8 Dec 2015 21:08:24 +0800
From: Fu Wei <fu.wei@...aro.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc: Hanjun Guo <hanjun.guo@...aro.org>,
Tomasz Nowicki <tomasz.nowicki@...aro.org>,
Tomasz Nowicki <tn@...ihalf.com>,
Rafael Wysocki <rjw@...ysocki.net>,
Len Brown <lenb@...nel.org>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will.deacon@....com>,
LKML <linux-kernel@...r.kernel.org>,
linux-arm-kernel@...ts.infradead.org, linux-acpi@...r.kernel.org,
Linaro ACPI Mailman List <linaro-acpi@...ts.linaro.org>,
G Gregory <graeme.gregory@...aro.org>,
Al Stone <al.stone@...aro.org>,
Mark Rutland <mark.rutland@....com>,
Marc Zyngier <Marc.Zyngier@....com>, rruigrok@...eaurora.org,
"Abdulhamid, Harb" <harba@....qualcomm.com>,
Jon Masters <jcm@...hat.com>, Mark Salter <msalter@...hat.com>,
Grant Likely <grant.likely@...aro.org>, rrichter@...ium.com,
jarkko.nikula@...ux.intel.com,
Jonathan Zhang <jon.zhixiong.zhang@...il.com>
Subject: Re: [PATCH v4] acpi, apei, arm64: APEI initial support for aarch64.
Hi Lorenzo,
On 8 December 2015 at 20:52, Hanjun Guo <hanjun.guo@...aro.org> wrote:
> Hi Lorenzo,
>
> On 12/08/2015 08:34 PM, Lorenzo Pieralisi wrote:
>>
>> On Tue, Dec 08, 2015 at 03:03:03PM +0800, fu.wei@...aro.org wrote:
>>>
>>> From: Tomasz Nowicki <tomasz.nowicki@...aro.org>
>>
>>
>> [...]
>>
>>> +#if defined(__i386__) || defined(__x86_64__)
>>> /*
>>> * Check if firmware advertises firmware first mode. We need FF bit to
>>> be set
>>> * along with a set of MC banks which work in FF mode.
>>> */
>>> static int __init hest_parse_cmc(struct acpi_hest_header *hest_hdr,
>>> void *data)
>>> {
>>> - return arch_apei_enable_cmcff(hest_hdr, data);
>>> + if (!acpi_disable_cmcff)
>>
>>
>> Why do not you define the flag above in this file (move it out of x86 -
>> that's what I was aiming at in my previous reply) and remove this
>> ifdeffery
>> altogether (First firmware handling could apply to arm64 too according to
>> specs and ACPI on arm64 guidelines) ?
>
>
> If I understand it correctly, CMC (Corrected Machine Check) is for IA32
> only, see section 18.3.2.1 IA-32 Architecture Machine Check Exception
> in ACPI 6.0. for ARM64, we can use other type of error source for
> firmware first handling, such as Generic Hardware Error Source, did
> I miss something?
yes, that is why I try to use "#if defined(__i386__) ||
defined(__x86_64__)" instead of moving acpi_disable_cmcff out of x86
code to here.
And I thinks we also can do "arch_apei_enable_cmcff" -->
"apei_enable_ia_cmcff" because that is IA32 only.
Please correct me if I misunderstand something. Thanks :-)
Great thanks for your feedback :-)
>
> Thanks
> Hanjun
--
Best regards,
Fu Wei
Software Engineer
Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch
Ph: +86 21 61221326(direct)
Ph: +86 186 2020 4684 (mobile)
Room 1512, Regus One Corporate Avenue,Level 15,
One Corporate Avenue,222 Hubin Road,Huangpu District,
Shanghai,China 200021
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists