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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Conrad H Ziesler <cziesler@umich.edu>, <linuxppc-dev@lists.linuxppc.org>
Subject: Re: ibook sleep, NMI edge vs level trigger.
Date: Fri, 20 Apr 2001 22:46:13 +0200	[thread overview]
Message-ID: <20010420204613.22912@mailhost.mipsys.com> (raw)
In-Reply-To: <Pine.SOL.4.10.10104201522100.26944-100000@galaxian.gpcc.itd.umich.edu>


>
>i dunno if this is news to anyone, but apparently
>(the source comment says "copied from OS9 code")
>the NMI is masked and switched from edge to level triggered before
>sleeping and unmasked and returned to edge triggered after wake.
>
>is the low level sleep handler doing this correctly ?
>
>refer to:
>xnu-4-2/iokit/Drivers/platform/drvAppleNMI/AppleNMI.cpp

AFAIK, it's only done on desktop G4s.

Ben.


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

      reply	other threads:[~2001-04-20 20:46 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-04-20 19:29 ibook sleep, NMI edge vs level trigger Conrad H Ziesler
2001-04-20 20:46 ` Benjamin Herrenschmidt [this message]

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