From: Scott Wood <scottwood@freescale.com>
To: Wang Dongsheng-B40534 <B40534@freescale.com>
Cc: Wood Scott-B07421 <B07421@freescale.com>,
"anton@enomsg.org" <anton@enomsg.org>,
"johannes@sipsolutions.net" <johannes@sipsolutions.net>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH 1/2] powerpc: add Book E support to 64-bit hibernation
Date: Thu, 13 Jun 2013 11:51:22 -0500 [thread overview]
Message-ID: <1371142282.2028.10@snotra> (raw)
In-Reply-To: <ABB05CD9C9F68C46A5CEDC7F15439259F74985@039-SN2MPN1-021.039d.mgd.msft.net> (from B40534@freescale.com on Thu Jun 13 04:55:43 2013)
On 06/13/2013 04:55:43 AM, Wang Dongsheng-B40534 wrote:
> > > +#else
> > > + /* Save SPRGs */
> > > + RESTORE_SPRG(0)
> > > + RESTORE_SPRG(1)
> > > + RESTORE_SPRG(2)
> > > + RESTORE_SPRG(3)
> > > + RESTORE_SPRG(4)
> > > + RESTORE_SPRG(5)
> > > + RESTORE_SPRG(6)
> > > + RESTORE_SPRG(7)
> >
> > Why do we need this on book3e and not on book3s?
> >
> Book3e: SPRG1 used save paca, SPRG2 be defined =20
> SPRN_SPRG_TLB_EXFRAME,...
> I think those register should be save, even now some SPRG register =20
> not be use.
Are those expected/allowed to change as a result of the restore?
-Scott=
next prev parent reply other threads:[~2013-06-13 16:51 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-09 10:37 [PATCH 1/2] powerpc: add Book E support to 64-bit hibernation Wang Dongsheng
2013-06-09 10:37 ` [PATCH 2/2] powerpc/hibernate: add restore mmu context after resume Wang Dongsheng
2013-07-10 10:11 ` Wang Dongsheng-B40534
2013-07-10 21:42 ` Scott Wood
2013-07-12 4:04 ` Wang Dongsheng-B40534
2013-07-12 21:54 ` Scott Wood
2013-07-12 23:06 ` Benjamin Herrenschmidt
2013-08-07 9:55 ` Wang Dongsheng-B40534
2013-06-12 22:03 ` [PATCH 1/2] powerpc: add Book E support to 64-bit hibernation Scott Wood
2013-06-13 9:55 ` Wang Dongsheng-B40534
2013-06-13 16:51 ` Scott Wood [this message]
2013-06-17 5:54 ` Wang Dongsheng-B40534
2013-06-18 0:01 ` Scott Wood
2013-06-18 0:17 ` Benjamin Herrenschmidt
2013-06-18 0:22 ` Scott Wood
2013-06-18 1:29 ` Benjamin Herrenschmidt
2013-07-10 9:41 ` Wang Dongsheng-B40534
2013-07-10 9:51 ` Benjamin Herrenschmidt
2013-07-10 10:05 ` Wang Dongsheng-B40534
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