[PATCH V2 2/2] powerpc/85xx: workaround for chips with MSI hardware errata

Scott Wood scottwood at freescale.com
Sat Sep 7 01:36:56 EST 2013


On Fri, 2013-09-06 at 10:01 -0500, Kumar Gala wrote:
> On Sep 5, 2013, at 1:37 PM, Scott Wood wrote:
> 
> > On Thu, 2013-09-05 at 13:34 -0500, Kumar Gala wrote:
> >> On Apr 2, 2013, at 9:03 PM, Jia Hongtao wrote:
> >>> +			msi->feature |= MSI_HW_ERRATA_ENDIAN;
> >>> +	}
> >>> +
> >>> 	/*
> >>> 	 * Remember the phandle, so that we can match with any PCI nodes
> >>> 	 * that have an "fsl,msi" property.
> >>> diff --git a/arch/powerpc/sysdev/fsl_msi.h b/arch/powerpc/sysdev/fsl_msi.h
> >>> index 8225f86..7389e8e 100644
> >>> --- a/arch/powerpc/sysdev/fsl_msi.h
> >>> +++ b/arch/powerpc/sysdev/fsl_msi.h
> >>> @@ -25,6 +25,8 @@
> >>> #define FSL_PIC_IP_IPIC   0x00000002
> >>> #define FSL_PIC_IP_VMPIC  0x00000003
> >>> 
> >>> +#define MSI_HW_ERRATA_ENDIAN 0x00000010
> >>> +
> >> 
> >> Why does this need to be in the header, why not just have it in the .c only
> > 
> > Didn't you ask this last time around? :-)
> > 
> > This flag is part of the same numberspace as FSL_PIC_IP_xxx and thus
> > should be defined in the same place.
> 
> I probably did, if its part of the FSL_PIC_IP_xxx namespace, than lets remove blank line between things to make that a bit more clear

It's not part of the FSL_PIC_IP_MASK subnumberspace though, just the
overall msi->features numberspace.

It would be nice if these symbols could have some sort of prefix in
common, though.

-Scott





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