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From: Will Deacon <will@kernel.org>
To: Robin Murphy <robin.murphy@arm.com>
Cc: bjorn.andersson@linaro.org, iommu@lists.linux-foundation.org,
	gregory.clement@bootlin.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 00/15] Arm SMMU refactoring
Date: Thu, 15 Aug 2019 11:55:52 +0100
Message-ID: <20190815105551.zqn45le3kd3f3jee@willie-the-truck> (raw)
In-Reply-To: <cover.1565369764.git.robin.murphy@arm.com>

Hi Robin,

On Fri, Aug 09, 2019 at 06:07:37PM +0100, Robin Murphy wrote:
> This is a big refactoring of arm-smmu in order to help cope with the
> various divergent implementation details currently flying around. So
> far we've been accruing various quirks and errata workarounds within
> the main flow of the driver, but given that it's written to an
> architecture rather than any particular hardware implementation, after
> a point these start to become increasingly invasive and potentially
> conflict with each other.
> 
> These patches clean up the existing quirks handled by the driver to
> lay a foundation on which we can continue to add more in a maintainable
> fashion. The idea is that major vendor customisations can then be kept
> in arm-smmu-<vendor>.c implementation files out of each others' way.
> 
> A branch is available at:
> 
>   git://linux-arm.org/linux-rm  iommu/smmu-impl
> 
> which I'll probably keep tweaking until I'm happy with the names of
> things; I just didn't want to delay this initial posting any lomnger.

Thanks, this all looks pretty decent to me. I've mainly left you a bunch
of nits (hey, it's a refactoring series!) but I did spot one pre-existing
howler that we should address.

When do you think you'll have stopped tweaking this so that I can pick it
up? I'd really like to see it in 5.4 so that others can start working on
top of it.

Cheers,

Will
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      parent reply index

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-09 17:07 Robin Murphy
2019-08-09 17:07 ` [PATCH 01/15] iommu/arm-smmu: Convert GR0 registers to bitfields Robin Murphy
2019-08-14 17:20   ` Will Deacon
2019-08-14 17:35     ` Robin Murphy
2019-08-09 17:07 ` [PATCH 02/15] iommu/arm-smmu: Convert GR1 " Robin Murphy
2019-08-09 17:07 ` [PATCH 03/15] iommu/arm-smmu: Convert context bank " Robin Murphy
2019-08-09 17:07 ` [PATCH 04/15] iommu/arm-smmu: Rework cb_base handling Robin Murphy
2019-08-14 18:05   ` Will Deacon
2019-08-15 11:14     ` Robin Murphy
2019-08-09 17:07 ` [PATCH 05/15] iommu/arm-smmu: Split arm_smmu_tlb_inv_range_nosync() Robin Murphy
2019-08-15 10:56   ` Will Deacon
2019-08-15 11:22     ` Robin Murphy
2019-08-09 17:07 ` [PATCH 06/15] iommu/arm-smmu: Get rid of weird "atomic" write Robin Murphy
2019-08-09 17:07 ` [PATCH 07/15] iommu/arm-smmu: Abstract GR1 accesses Robin Murphy
2019-08-09 17:07 ` [PATCH 08/15] iommu/arm-smmu: Abstract context bank accesses Robin Murphy
2019-08-15 10:56   ` Will Deacon
2019-08-15 11:41     ` Robin Murphy
2019-08-09 17:07 ` [PATCH 09/15] iommu/arm-smmu: Abstract GR0 accesses Robin Murphy
2019-08-09 17:07 ` [PATCH 10/15] iommu/arm-smmu: Rename arm-smmu-regs.h Robin Murphy
2019-08-09 17:07 ` [PATCH 11/15] iommu/arm-smmu: Add implementation infrastructure Robin Murphy
2019-08-09 17:07 ` [PATCH 12/15] iommu/arm-smmu: Move Secure access quirk to implementation Robin Murphy
2019-08-09 17:07 ` [PATCH 13/15] iommu/arm-smmu: Add configuration implementation hook Robin Murphy
2019-08-09 17:07 ` [PATCH 14/15] iommu/arm-smmu: Add reset " Robin Murphy
2019-08-09 17:07 ` [PATCH 15/15] iommu/arm-smmu: Add context init " Robin Murphy
2019-08-13 19:11   ` Krishna Reddy
2019-08-15 10:56   ` Will Deacon
2019-08-15 12:09     ` Robin Murphy
2019-08-15 15:09       ` Jordan Crouse
2019-08-09 17:11 ` [PATCH 00/15] Arm SMMU refactoring Robin Murphy
2019-08-15 10:55 ` Will Deacon [this message]

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