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List:       linux-edac
Subject:    Re: [PATCH RFC] apei: xgene: Add ACPI APEI support for X-Gene
From:       Loc Ho <lho () apm ! com>
Date:       2015-10-07 19:55:31
Message-ID: CAPw-ZTnxKPM1oU3OayGTGphrdAdJLTPXT4Yna7raRqROvhksSw () mail ! gmail ! com
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Hi Tomasx/Fu,

>> Yes... We can make this generic. The only non-generic is the way the
>> interrupt is cleared. As of right now, the method of clearing the
>> interrupt is by writing back the same value as read. This would be
>> fine for most.
>
> Fine for most what? APM hardware, other hw?

In general, most HW states are cleared with writing an 1 - but it is
HW implementation specific.

>
>> But to ensure 100% coverage, would an AML method be better or needed?
>
> No idea, I'm not an ACPI guy. You probably should get in touch with the
> people working on the ARM64 APEI driver and hash that out with them.

Is there an thread on ACPI APEI support going on currently for ARM?

-Loc
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