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Re: [PATCH v4 1/4] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro

From Gautham R Shenoy <ego@linux.vnet.ibm.com>
Newsgroups linux.kernel
Subject Re: [PATCH v4 1/4] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro
Date 2016-12-14 07:40 +0100
Message-ID <sObol-35x-23@gated-at.bofh.it> (permalink)
References <sMtz4-3Rh-5@gated-at.bofh.it> <sMtz4-3Rh-11@gated-at.bofh.it> <sNSlH-8pl-11@gated-at.bofh.it>
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Hi Balbir,

On Tue, Dec 13, 2016 at 09:13:26PM +1100, Balbir Singh wrote:
> 
> 
> On 10/12/16 00:32, Gautham R. Shenoy wrote:
> > From: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>
> > diff --git a/arch/powerpc/include/asm/cpuidle.h b/arch/powerpc/include/asm/cpuidle.h
> > index 3919332..0a3255b 100644
> > --- a/arch/powerpc/include/asm/cpuidle.h
> > +++ b/arch/powerpc/include/asm/cpuidle.h
> > @@ -21,7 +21,7 @@
> >  
> >  /* Idle state entry routines */
> >  #ifdef	CONFIG_PPC_P7_NAP
> > -#define	IDLE_STATE_ENTER_SEQ(IDLE_INST)				\
> > +#define IDLE_STATE_ENTER_SEQ(IDLE_INST)                         \
> >  	/* Magic NAP/SLEEP/WINKLE mode enter sequence */	\
> >  	std	r0,0(r1);					\
> >  	ptesync;						\
> > @@ -29,6 +29,9 @@
> >  1:	cmpd	cr0,r0,r0;					\
> >  	bne	1b;						\
> >  	IDLE_INST;						\
> > +
> 
> Is the power saving magic sequence the same as before for power 9
> as well?

Yes, this is the same magic sequence for POWER9.

--
Thanks and Regards
gautham.

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Re: [PATCH v4 1/4] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro Balbir Singh <bsingharora@gmail.com> - 2016-12-13 11:20 +0100
  Re: [PATCH v4 1/4] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro Gautham R Shenoy <ego@linux.vnet.ibm.com> - 2016-12-14 07:40 +0100

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