linux-kernel - Re: [PATCH v13 0/4] Add uacce module for Accelerator

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Date:   Sat, 22 Feb 2020 09:52:41 +0800
From:   zhangfei <zhangfei.gao@...aro.org>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>, jonathan.cameron@...wei.com,
        dave.jiang@...el.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, linux-accelerators@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
        iommu@...ts.linux-foundation.org
Subject: Re: [PATCH v13 0/4] Add uacce module for Accelerator



On 2020/2/22 上午9:41, Herbert Xu wrote:
> On Tue, Feb 11, 2020 at 03:54:21PM +0800, 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/v5.6-rc1-uacce-v13
>>
>> The library and user application:
>> https://github.com/Linaro/warpdrive/tree/wdprd-upstream-v13
>>
>>
>> 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
>>
>>   Documentation/ABI/testing/sysfs-driver-uacce |  39 ++
>>   Documentation/misc-devices/uacce.rst         | 176 ++++++
>>   drivers/crypto/hisilicon/qm.c                | 239 ++++++-
>>   drivers/crypto/hisilicon/qm.h                |  11 +
>>   drivers/crypto/hisilicon/zip/zip_main.c      |  49 +-
>>   drivers/misc/Kconfig                         |   1 +
>>   drivers/misc/Makefile                        |   1 +
>>   drivers/misc/uacce/Kconfig                   |  13 +
>>   drivers/misc/uacce/Makefile                  |   2 +
>>   drivers/misc/uacce/uacce.c                   | 617 +++++++++++++++++++
>>   include/linux/uacce.h                        | 161 +++++
>>   include/uapi/misc/uacce/hisi_qm.h            |  23 +
>>   include/uapi/misc/uacce/uacce.h              |  38 ++
>>   13 files changed, 1337 insertions(+), 33 deletions(-)
>>   create mode 100644 Documentation/ABI/testing/sysfs-driver-uacce
>>   create mode 100644 Documentation/misc-devices/uacce.rst
>>   create mode 100644 drivers/misc/uacce/Kconfig
>>   create mode 100644 drivers/misc/uacce/Makefile
>>   create mode 100644 drivers/misc/uacce/uacce.c
>>   create mode 100644 include/linux/uacce.h
>>   create mode 100644 include/uapi/misc/uacce/hisi_qm.h
>>   create mode 100644 include/uapi/misc/uacce/uacce.h
> All applied.  Thanks.
That's Great,
Thanks Herbert for the great help.