[PATCH 2/2 V8] powerpc/85xx: Add machine check handler to fix PCIe erratum on mpc85xx
B38951 at freescale.com
Fri May 3 12:03:57 EST 2013
> -----Original Message-----
> From: Wood Scott-B07421
> Sent: Friday, May 03, 2013 1:04 AM
> To: Jia Hongtao-B38951
> Cc: linuxppc-dev at lists.ozlabs.org; galak at kernel.crashing.org; Wood Scott-
> B07421; segher at kernel.crashing.org; Li Yang-R58472; Jia Hongtao-B38951
> Subject: Re: [PATCH 2/2 V8] powerpc/85xx: Add machine check handler to
> fix PCIe erratum on mpc85xx
> On 04/28/2013 12:20:08 AM, Jia Hongtao wrote:
> > A PCIe erratum of mpc85xx may causes a core hang when a link of PCIe
> > goes down. when the link goes down, Non-posted transactions issued via
> > the ATMU requiring completion result in an instruction stall.
> > At the same time a machine-check exception is generated to the core to
> > allow further processing by the handler. We implements the handler
> > which skips the instruction caused the stall.
> > This patch depends on patch:
> > powerpc/85xx: Add platform_device declaration to fsl_pci.h
> > Signed-off-by: Zhao Chenhui <b35336 at freescale.com>
> > Signed-off-by: Li Yang <leoli at freescale.com>
> > Signed-off-by: Liu Shuo <soniccat.liu at gmail.com>
> > Signed-off-by: Jia Hongtao <hongtao.jia at freescale.com>
> > ---
> > V8:
> > * Add A variant load instruction emulation.
Thanks for the review.
Could you please review these MSI and PCI hang errata patches?
http://patchwork.ozlabs.org/patch/240239/ (This patch)
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