Re: swsuspend: possible with VIA Eden processor? Or alternatives?

From: Pavel Machek (pavel@ucw.cz)
Date: Tue Jan 21 2003 - 10:15:28 EST


Hi!

> > > the swsuspend mini howto says that a processor with pse/pse36 feature
> > is > required for swsupend in 2.4.
> > >
> > > So I am obviously out of luck with 2.4 kernels, but what about 2.5 (the
> > > mini-howto is silent here)?
> >
> >>From include/asm-i386/suspend.h
> >
> >static inline void
> >arch_prepare_suspend(void)
> >{
> > if (!cpu_has_pse)
> > panic("pse required");
> >}
> >
> I assume this is from a 2.5 kernel (I have no source tree available
> here). I'll check that tomorrow in the office.

If it is not in 2.4.X it only means 2.4.X will randomly flip bits in
memory during resume.

> >There's really no requirement that you *need* PSE to be able to
> >do suspend, but it seems no-one has stepped forward to write the
> >necessary code to support non-PSE afaics.
> >
> I don't even know what pse means :-(

4MB pages, basically.

[Hey, this is great time to learn something new!]
                                                                Pavel

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