[PATCH] powerpc: add Book E support to 64-bit hibernation
Johannes Berg
johannes at sipsolutions.net
Sat Mar 16 02:22:06 EST 2013
On Thu, 2013-03-14 at 11:52 -0500, Scott Wood wrote:
> > > +#ifdef CONFIG_PPC_BOOK3S_64
> > > /* can't use RESTORE_SPECIAL(MSR) */
> > > ld r0, SL_MSR(r11)
> > > mtmsrd r0, 0
> >
> > Unfortunately, I forgot the reason for this comment, and didn't put a
> > better one (almost 6 years ago!!)
> If it's because book3s needs mtmsrd instead of mtmsr, that doesn't
> apply to booke.
Indeed, looking at the code again now that seems pretty obvious.
Looking at the patch again, I'd be a little concerned about the lack of
cache flushing, seems a bit odd but I'm sure you know what you're doing
(and I don't know book3e at all, and hardly remember book3s -- or even
that name...) :-)
johannes
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