linux-kernel - Re: [PATCH 3/3 V4] EDAC, AMD64_EDAC: Add ECC decoding support for newer F15h models.

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Message-ID: <20130810151530.GA4155@pd.tnic>
Date:	Sat, 10 Aug 2013 17:15:31 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>
Cc:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	dougthompson@...ssion.com, bhelgaas@...gle.com, jbeulich@...e.com,
	linux-kernel@...r.kernel.org, linux-edac@...r.kernel.org,
	linux-pci@...r.kernel.org
Subject: Re: [PATCH 3/3 V4] EDAC, AMD64_EDAC: Add ECC decoding support for
 newer F15h models.

On Fri, Aug 09, 2013 at 11:54:49AM -0500, Aravind Gopalakrishnan wrote:
> Adding support for handling ECC error decoding for new F15 models.
> On newer models, support has been included for upto 4 DCT's, however,
> only DCT0 and DCT3 are currently configured. (Refer BKDG Section 2.10)
> Routing DRAM Requests algorithm is different for F15h M30h.
> It is cleaner to use a brand new function rather than
> adding quirks in the more generic 'f1x_match_to_this_node'
> Refer "2.10.5 DRAM Routing Requests" in BKDG for info.
> 
> Tested on Fam15h M30h with ECC turned on using mce_amd_inj facility and
> verified to be functionally correct.
> 
> Changes from V3:
> 	- Remove compiler warnings
>         - Recheck models that need erratum workaround for E505:
> 	  - From looking up history of the bug, we find that
>             the workaround holds true only for Fam15 models upto 1h
>             and only upto stepping 0h. CPU revisions after these
>             do not need the workaround.
> 
> Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>

Ok, I've taken it and applied a cleanup ontop which uses the locally
cached family, model, stepping (sending it as a reply to this message).

I'd appreciate it if you tested the branch here

git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git amd-f15-m30

just to make sure everything is still kosher.

Thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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