From: Jia Hongtao-B38951 <B38951@freescale.com>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Wood Scott-B07421 <B07421@freescale.com>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: RE: [PATCH 2/2 V7] powerpc/85xx: Add machine check handler to fix PCIe erratum on mpc85xx
Date: Sun, 28 Apr 2013 02:20:37 +0000 [thread overview]
Message-ID: <412C8208B4A0464FA894C5F0C278CD5D01C4C8EE@039-SN1MPN1-002.039d.mgd.msft.net> (raw)
In-Reply-To: <C8615FAE-3DFA-4086-88AE-2EA9EA700D15@kernel.crashing.org>
> -----Original Message-----
> From: Segher Boessenkool [mailto:segher@kernel.crashing.org]
> Sent: Saturday, April 27, 2013 9:32 PM
> To: Jia Hongtao-B38951
> Cc: Wood Scott-B07421; linuxppc-dev@lists.ozlabs.org;
> galak@kernel.crashing.org
> Subject: Re: [PATCH 2/2 V7] powerpc/85xx: Add machine check handler to
> fix PCIe erratum on mpc85xx
>=20
> > 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?
>=20
> A/AU/AX/AUX are just normal loads, sign-extended instead of zero-extended
> (so assign -1 to the register loaded).
>=20
> The ARX thing is load-locked, you do not want that one.
>=20
>=20
> Segher
Thanks, very helpful.
-Hongtao
next prev parent reply other threads:[~2013-04-28 2:20 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-23 2:39 [PATCH 1/2] powerpc: Move opcode definitions from kvm/emulate.c to asm/ppc-opcode.h Jia Hongtao
2013-04-23 2:39 ` [PATCH 2/2 V7] powerpc/85xx: Add machine check handler to fix PCIe erratum on mpc85xx Jia Hongtao
2013-04-25 15:31 ` Segher Boessenkool
2013-04-25 16:58 ` Scott Wood
2013-04-25 17:32 ` Segher Boessenkool
2013-04-27 2:26 ` Jia Hongtao-B38951
2013-04-27 13:31 ` Segher Boessenkool
2013-04-28 2:20 ` Jia Hongtao-B38951 [this message]
2013-04-29 20:29 ` Scott Wood
2013-05-02 7:00 ` Jia Hongtao-B38951
2013-04-23 5:29 ` [PATCH 1/2] powerpc: Move opcode definitions from kvm/emulate.c to asm/ppc-opcode.h Michael Ellerman
2013-04-23 6:36 ` Jia Hongtao-B38951
2013-04-24 4:19 ` Benjamin Herrenschmidt
2013-04-26 2:40 ` Jia Hongtao-B38951
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