* ibook sleep, NMI edge vs level trigger.
@ 2001-04-20 19:29 Conrad H Ziesler
2001-04-20 20:46 ` Benjamin Herrenschmidt
0 siblings, 1 reply; 2+ messages in thread
From: Conrad H Ziesler @ 2001-04-20 19:29 UTC (permalink / raw)
To: linuxppc-dev
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
--conrad
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2001-04-20 19:29 ibook sleep, NMI edge vs level trigger Conrad H Ziesler
2001-04-20 20:46 ` Benjamin Herrenschmidt
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