From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: zhangfei <zhangfei.gao@linaro.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Arnd Bergmann <arnd@arndb.de>,
Herbert Xu <herbert@gondor.apana.org.au>, <grant.likely@arm.com>,
jean-philippe <jean-philippe@linaro.org>,
"Jerome Glisse" <jglisse@redhat.com>,
<ilias.apalodimas@linaro.org>, <francois.ozog@linaro.org>,
<kenneth-lee-2012@foxmail.com>,
Wangzhou <wangzhou1@hisilicon.com>,
"haojian . zhuang" <haojian.zhuang@linaro.org>,
<guodong.xu@linaro.org>, <linux-accelerators@lists.ozlabs.org>,
<linux-kernel@vger.kernel.org>, <linux-crypto@vger.kernel.org>,
<iommu@lists.linux-foundation.org>,
Dave Jiang <dave.jiang@intel.com>
Subject: Re: [PATCH v10 0/4] Add uacce module for Accelerator
Date: Fri, 10 Jan 2020 10:08:18 +0000 [thread overview]
Message-ID: <20200110100818.0000151a@Huawei.com> (raw)
In-Reply-To: <9b87edca-dd4e-3fe2-5acd-11f7381593ed@linaro.org>
On Fri, 10 Jan 2020 15:03:25 +0800
zhangfei <zhangfei.gao@linaro.org> wrote:
> On 2020/1/10 上午1:49, Jonathan Cameron wrote:
> > On Mon, 16 Dec 2019 11:08:13 +0800
> > Zhangfei Gao <zhangfei.gao@linaro.org> 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]
> > Hi Zhangfei Gao,
> >
> > Just to check my understanding...
> >
> > This patch set is not dependent on either 2 or 3?
> >
> > To use it on our hardware, we need 2, but the interfaces used are already
> > upstream, so this could move forwards in parallel.
> >
> >
> Yes,
> patch 1, 2 is for uacce.
> patch 3, 4 is an example using uacce, which happen to be crypto.
Sorry, I wasn't clear enough.
Question is whether we need Jean's sva patch set [2] to merge this?
>
> Thanks
WARNING: multiple messages have this Message-ID (diff)
From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: zhangfei <zhangfei.gao@linaro.org>
Cc: jean-philippe <jean-philippe@linaro.org>,
Dave Jiang <dave.jiang@intel.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Arnd Bergmann <arnd@arndb.de>,
francois.ozog@linaro.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
ilias.apalodimas@linaro.org, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, Jerome Glisse <jglisse@redhat.com>,
grant.likely@arm.com,
"haojian . zhuang" <haojian.zhuang@linaro.org>,
linux-accelerators@lists.ozlabs.org,
linux-crypto@vger.kernel.org, guodong.xu@linaro.org,
kenneth-lee-2012@foxmail.com
Subject: Re: [PATCH v10 0/4] Add uacce module for Accelerator
Date: Fri, 10 Jan 2020 10:08:18 +0000 [thread overview]
Message-ID: <20200110100818.0000151a@Huawei.com> (raw)
In-Reply-To: <9b87edca-dd4e-3fe2-5acd-11f7381593ed@linaro.org>
On Fri, 10 Jan 2020 15:03:25 +0800
zhangfei <zhangfei.gao@linaro.org> wrote:
> On 2020/1/10 上午1:49, Jonathan Cameron wrote:
> > On Mon, 16 Dec 2019 11:08:13 +0800
> > Zhangfei Gao <zhangfei.gao@linaro.org> 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]
> > Hi Zhangfei Gao,
> >
> > Just to check my understanding...
> >
> > This patch set is not dependent on either 2 or 3?
> >
> > To use it on our hardware, we need 2, but the interfaces used are already
> > upstream, so this could move forwards in parallel.
> >
> >
> Yes,
> patch 1, 2 is for uacce.
> patch 3, 4 is an example using uacce, which happen to be crypto.
Sorry, I wasn't clear enough.
Question is whether we need Jean's sva patch set [2] to merge this?
>
> Thanks
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next prev parent reply other threads:[~2020-01-10 10:08 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-16 3:08 [PATCH v10 0/4] Add uacce module for Accelerator Zhangfei Gao
2019-12-16 3:08 ` Zhangfei Gao
2019-12-16 3:08 ` [PATCH v10 1/4] uacce: Add documents for uacce Zhangfei Gao
2019-12-16 3:08 ` Zhangfei Gao
2019-12-16 3:08 ` [PATCH v10 2/4] uacce: add uacce driver Zhangfei Gao
2019-12-16 3:08 ` Zhangfei Gao
2020-01-09 17:38 ` Jonathan Cameron
2020-01-09 17:38 ` Jonathan Cameron
2020-01-10 6:55 ` zhangfei.gao
2020-01-10 10:10 ` Jonathan Cameron
2020-01-10 10:10 ` Jonathan Cameron
2020-01-10 14:50 ` zhangfei.gao
2019-12-16 3:08 ` [PATCH v10 3/4] crypto: hisilicon - Remove module_param uacce_mode Zhangfei Gao
2019-12-16 3:08 ` Zhangfei Gao
2020-01-09 17:40 ` Jonathan Cameron
2020-01-09 17:40 ` Jonathan Cameron
2019-12-16 3:08 ` [PATCH v10 4/4] crypto: hisilicon - register zip engine to uacce Zhangfei Gao
2019-12-16 3:08 ` Zhangfei Gao
2020-01-09 17:48 ` Jonathan Cameron
2020-01-09 17:48 ` Jonathan Cameron
2020-01-10 7:07 ` zhangfei
2020-01-10 7:07 ` zhangfei
2019-12-23 13:41 ` [PATCH v10 0/4] Add uacce module for Accelerator zhangfei
2019-12-23 13:41 ` zhangfei
2020-01-08 16:47 ` Dave Jiang
2020-01-08 16:47 ` Dave Jiang
2020-01-09 17:49 ` Jonathan Cameron
2020-01-09 17:49 ` Jonathan Cameron
2020-01-10 7:03 ` zhangfei
2020-01-10 7:03 ` zhangfei
2020-01-10 10:08 ` Jonathan Cameron [this message]
2020-01-10 10:08 ` Jonathan Cameron
2020-01-10 11:29 ` zhangfei.gao
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