Hi!
> >In fact, I'd like drivers to use notifiers to actually
> >load the firmware into
> >memory before hibernation/suspend. Namely, if there's
> >PM_PRE_FREEZE, the
> >driver calls request_firmware() from within the
> >notifier and saves the firmware
> >in memory for future use, if need be. Later, when
> >PM_POST_THAW comes, the
> >memory holding the firmware is released.
> >
> >Unfortunately there are drivers that call
> >request_firmware() directly from
> >.resume() which blocks until timeout expires and fails
> >anyway. I just wanted
> >this to fail immediately, without waiting.
>
> Stupid question time. Wouldn't it just be easier to have
> request_firmware() keep a copy of the firmware once it's
> been loaded?
> We're not talking about a lot of memory that would be
> wasted, and that
> way no drivers have to be changed.
Actually, I like this idea. Firmware problems magically disappear.
...unless someone uses x86 emulator in userland to POST graphics card.
You can't 'cache' that. But that's separate problem.
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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