[PATCH 2/2 V7] powerpc/85xx: Add machine check handler to fix PCIe erratum on mpc85xx

[Jia Hongtao-B38951]

> -----Original Message-----
> From: Segher Boessenkool [mailto:segher at kernel.crashing.org]
> Sent: Saturday, April 27, 2013 9:32 PM
> To: Jia Hongtao-B38951
> Cc: Wood Scott-B07421; linuxppc-dev at lists.ozlabs.org;
> galak at kernel.crashing.org
> Subject: Re: [PATCH 2/2 V7] powerpc/85xx: Add machine check handler to
> fix PCIe erratum on mpc85xx
> 
> > In former email you doubt whether we need A variant or not.
> > Any particular reason for that?
> > If not should I emulate all the A ARX AU AUX and AX variant?
> 
> A/AU/AX/AUX are just normal loads, sign-extended instead of zero-extended
> (so assign -1 to the register loaded).
> 
> The ARX thing is load-locked, you do not want that one.
> 
> 
> Segher

Thanks, very helpful.
-Hongtao