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From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: Will Deacon <will@kernel.org>
Cc: joro@8bytes.org, catalin.marinas@arm.com,
	kernel-team@android.com, robh+dt@kernel.org,
	linux-acpi@vger.kernel.org, sudeep.holla@arm.com,
	robin.murphy@arm.com, guohanjun@huawei.com,
	devicetree@vger.kernel.org, iommu@lists.linux-foundation.org,
	zhangfei.gao@linaro.org, wangzhou1@hisilicon.com,
	Jonathan.Cameron@huawei.com, lorenzo.pieralisi@arm.com,
	linux-arm-kernel@lists.infradead.org, eric.auger@redhat.com,
	rjw@rjwysocki.net, lenb@kernel.org
Subject: Re: [PATCH v15 0/3] iommu/arm-smmu-v3: Add stall support
Date: Wed, 9 Jun 2021 11:43:52 +0200	[thread overview]
Message-ID: <YMCNWOkJ/xi2Yv1U@myrica> (raw)
In-Reply-To: <162314710744.3707892.6632600736379822229.b4-ty@kernel.org>

On Tue, Jun 08, 2021 at 12:42:34PM +0100, Will Deacon wrote:
> On Wed, 26 May 2021 18:19:25 +0200, Jean-Philippe Brucker wrote:
> > Add stall support for SMMUv3, enabling I/O page faults and SVA for
> > compatible devices. No change since last version [1], but I'd still like
> > this to be considered for upstream, because there exists hardware and
> > applications.
> > 
> > Stall is implemented by the Kunpeng 920 processor for its compression
> > and crypto accelerators, with which I tested the SVA infrastructure.
> > Using the userspace accelerator API [2], a program can obtain a queue
> > from one of these devices and submit compression or encryption work
> > within the program's address space. UADK [3] provides a library to do
> > this, and there is an openssl plugin [4] to use it.
> > 
> > [...]
> 
> Applied to will (for-joerg/arm-smmu/updates), thanks!
> 
> [1/3] dt-bindings: document stall property for IOMMU masters
>       https://git.kernel.org/will/c/ed1d08b9d0c9
> [2/3] ACPI/IORT: Enable stall support for platform devices
>       https://git.kernel.org/will/c/6522b1e0c78f
> [3/3] iommu/arm-smmu-v3: Add stall support for platform devices
>       https://git.kernel.org/will/c/395ad89d11fd
> 

Thanks!  That concludes most of the SVA work. For SMMUv3 we still need to
figure out DVM, there will be PRI at some point, and I'm sure some
bugfixes but I don't plan to send any other major feature support for the
next cycles.

Thanks,
Jean


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      reply	other threads:[~2021-06-09  9:52 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-26 16:19 [PATCH v15 0/3] iommu/arm-smmu-v3: Add stall support Jean-Philippe Brucker
2021-05-26 16:19 ` [PATCH v15 1/3] dt-bindings: document stall property for IOMMU masters Jean-Philippe Brucker
2021-05-26 16:19 ` [PATCH v15 2/3] ACPI/IORT: Enable stall support for platform devices Jean-Philippe Brucker
2021-05-26 16:19 ` [PATCH v15 3/3] iommu/arm-smmu-v3: Add " Jean-Philippe Brucker
2021-06-08 11:42 ` [PATCH v15 0/3] iommu/arm-smmu-v3: Add stall support Will Deacon
2021-06-09  9:43   ` Jean-Philippe Brucker [this message]

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