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From: Borislav Petkov <bp@alien8.de>
To: James Morse <james.morse@arm.com>
Cc: "mark.rutland@arm.com" <mark.rutland@arm.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"arnd@arndb.de" <arnd@arndb.de>,
	"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"Sverdlin,
	Alexander \(Nokia - DE/Ulm\)" <alexander.sverdlin@nokia.com>,
	"mchehab+samsung@kernel.org" <mchehab+samsung@kernel.org>,
	"Wiebe, Wladislav \(Nokia - DE/Ulm\)" <wladislav.wiebe@nokia.com>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	"mchehab@kernel.org" <mchehab@kernel.org>,
	"davem@davemloft.net" <davem@davemloft.net>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Subject: Re: [PATCH 2/2] EDAC: add ARM Cortex A15 L2 internal asynchronous error detection driver
Date: Fri, 11 Jan 2019 19:29:44 +0100
Message-ID: <20190111182944.GA24304@zn.tnic> (raw)
In-Reply-To: <bba99e8c-5e3e-98a4-d0c9-9734216e66d2@arm.com>

On Fri, Jan 11, 2019 at 06:11:04PM +0000, James Morse wrote:
> After I sent this it occurred to me the core can't know about errors in the L3
> cache (if there is one) or the memory-controller. These may have edac/ras
> abilities, but they are selected by the soc integrator, so could be per soc.
> This goes against Boris's no-per-functional-unit edac drivers. If we had to pick
> one out of that set, I think the memory-controller is most useful as DRAM is the
> most likely to be affected by errors.

We have similar "designs" already :)

Memory controller driver drivers/edac/fsl_ddr_edac.c gets linked together with:

mpc85xx_edac_mod-y                      := fsl_ddr_edac.o mpc85xx_edac.o
obj-$(CONFIG_EDAC_MPC85XX)              += mpc85xx_edac_mod.o

layerscape_edac_mod-y                   := fsl_ddr_edac.o layerscape_edac.o
obj-$(CONFIG_EDAC_LAYERSCAPE)           += layerscape_edac_mod.o

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.

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Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-08  8:10 Wiebe, Wladislav (Nokia - DE/Ulm)
2019-01-08 10:42 ` Borislav Petkov
2019-01-08 17:57   ` James Morse
2019-01-08 18:12     ` gregkh
2019-01-09  9:57       ` James Morse
2019-01-09 14:44     ` Wiebe, Wladislav (Nokia - DE/Ulm)
2019-01-11 18:11       ` James Morse
2019-01-11 18:29         ` Borislav Petkov [this message]

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