linux-kernel - Re: [PATCH v8 1/3] perf: cavium: Support memory controller PMU counters

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Message-ID: <20170726172515.0000185c@huawei.com>
Date:   Wed, 26 Jul 2017 17:25:15 +0100
From:   Jonathan Cameron <Jonathan.Cameron@...wei.com>
To:     Jan Glauber <jan.glauber@...iumnetworks.com>
CC:     Suzuki K Poulose <Suzuki.Poulose@....com>,
        Mark Rutland <mark.rutland@....com>,
        Will Deacon <will.deacon@....com>,
        Borislav Petkov <bp@...en8.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v8 1/3] perf: cavium: Support memory controller PMU
 counters

On Wed, 26 Jul 2017 17:46:23 +0200
Jan Glauber <jan.glauber@...iumnetworks.com> wrote:

> On Wed, Jul 26, 2017 at 04:17:11PM +0100, Suzuki K Poulose wrote:
> > How about adding a soc specific (wrapper) driver for the memory controller, which
> > could use the PCI id and trigger EDAC and PMU drivers (based on what is
> > selected by configs)  ?  
> 
> Sounds good to me. Is there a driver that already does this?
Sounds like a classic MFD (multifunction device). There are quite a few pci
devices to be found under drivers/mfd/ than may provide some inspiration.

Jonathan
> 
> --Jan
> 
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> linux-arm-kernel@...ts.infradead.org
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