linux-kernel - Re: [PATCH v2 1/4] iommu/arm-smmu: Introduce wrapper for writeq/readq

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Message-ID: <20190820120848.2m6gytilrpil4stu@willie-the-truck>
Date:   Tue, 20 Aug 2019 13:08:49 +0100
From:   Will Deacon <will@...nel.org>
To:     Gregory CLEMENT <gregory.clement@...tlin.com>
Cc:     Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>, linux-kernel@...r.kernel.org,
        iommu@...ts.linux-foundation.org, devicetree@...r.kernel.org,
        Jason Cooper <jason@...edaemon.net>,
        Andrew Lunn <andrew@...n.ch>,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Maxime Chevallier <maxime.chevallier@...tlin.com>,
        Nadav Haklai <nadavh@...vell.com>,
        Rob Herring <robh+dt@...nel.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Miquèl Raynal <miquel.raynal@...tlin.com>,
        Hanna Hawa <hannah@...vell.com>,
        linux-arm-kernel@...ts.infradead.org,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Subject: Re: [PATCH v2 1/4] iommu/arm-smmu: Introduce wrapper for writeq/readq

Hi Gregory, Hanna,

On Thu, Jul 11, 2019 at 05:02:39PM +0200, Gregory CLEMENT wrote:
> From: Hanna Hawa <hannah@...vell.com>
> 
> This patch introduces the smmu_writeq_relaxed/smmu_readq_relaxed
> helpers, as preparation to add specific Marvell work-around for
> accessing 64 bits width registers of ARM SMMU.
> 
> Signed-off-by: Hanna Hawa <hannah@...vell.com>
> Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
> ---
>  drivers/iommu/arm-smmu.c | 36 +++++++++++++++++++++++++++---------
>  1 file changed, 27 insertions(+), 9 deletions(-)

Sorry for the delay in replying to this -- Robin's been reworking the driver
so that implementation quirks can be specified more cleanly. Please can you
take a look at:

https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git/log/?h=for-joerg/arm-smmu/refactoring

and try to respin your patches on top of that?

Thanks,

Will