linux-kernel - Re: [PATCH v10 0/4] Add uacce module for Accelerator

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Date:   Mon, 23 Dec 2019 21:41:31 +0800
From:   zhangfei <zhangfei.gao@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        jonathan.cameron@...wei.com, grant.likely@....com,
        jean-philippe <jean-philippe@...aro.org>,
        Jerome Glisse <jglisse@...hat.com>,
        ilias.apalodimas@...aro.org, francois.ozog@...aro.org,
        kenneth-lee-2012@...mail.com, Wangzhou <wangzhou1@...ilicon.com>,
        "haojian . zhuang" <haojian.zhuang@...aro.org>,
        guodong.xu@...aro.org
Cc:     linux-accelerators@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        linux-crypto@...r.kernel.org, iommu@...ts.linux-foundation.org
Subject: Re: [PATCH v10 0/4] Add uacce module for Accelerator

Hi, Greg

On 2019/12/16 上午11:08, Zhangfei Gao wrote:
> Uacce (Unified/User-space-access-intended Accelerator Framework) targets to
> provide Shared Virtual Addressing (SVA) between accelerators and processes.
> So accelerator can access any data structure of the main cpu.
> This differs from the data sharing between cpu and io device, which share
> data content rather than address.
> Because of unified address, hardware and user space of process can share
> the same virtual address in the communication.
>
> Uacce is intended to be used with Jean Philippe Brucker's SVA
> patchset[1], which enables IO side page fault and PASID support.
> We have keep verifying with Jean's sva patchset [2]
> We also keep verifying with Eric's SMMUv3 Nested Stage patches [3]
>
> This series and related zip & qm driver
> https://github.com/Linaro/linux-kernel-warpdrive/tree/v5.5-rc1-uacce-v10
>
> The library and user application:
> https://github.com/Linaro/warpdrive/tree/wdprd-upstream-v10
>
> References:
> [1] http://jpbrucker.net/sva/
> [2] http://jpbrucker.net/git/linux/log/?h=sva/zip-devel
> [3] https://github.com/eauger/linux/tree/v5.3.0-rc0-2stage-v9
>
> Change History:
> v10:
> Modify the include header to fix kbuild test erorr in other arch.
>
>
> Kenneth Lee (2):
>    uacce: Add documents for uacce
>    uacce: add uacce driver
>
> Zhangfei Gao (2):
>    crypto: hisilicon - Remove module_param uacce_mode
>    crypto: hisilicon - register zip engine to uacce
>
>

Would you mind take a look at the patch set?

The patches are also used for verifying the sva feature.
https://lore.kernel.org/linux-iommu/20191219163033.2608177-1-jean-philippe@linaro.org/

Thanks