From: Jerome Glisse <jglisse@redhat.com>
To: Alan Tull <atull@kernel.org>
Cc: "Luebbers, Enno" <enno.luebbers@intel.com>,
Moritz Fischer <moritz.fischer@ettus.com>,
Wu Hao <hao.wu@intel.com>,
linux-fpga@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"Kang, Luwei" <luwei.kang@intel.com>,
"Zhang, Yi Z" <yi.z.zhang@intel.com>
Subject: Re: [PATCH 00/16] Intel FPGA Device Drivers
Date: Mon, 17 Apr 2017 11:57:25 -0400 [thread overview]
Message-ID: <20170417155723.GA4547@redhat.com> (raw)
In-Reply-To: <CANk1AXSOen7OWeJWc2GFDZe_ZEvjHonKvomw9ErrZu3RK17BJw@mail.gmail.com>
On Mon, Apr 17, 2017 at 10:35:01AM -0500, Alan Tull wrote:
> On Fri, Apr 14, 2017 at 3:49 PM, Jerome Glisse <jglisse@redhat.com> wrote:
>
> Hi Jerome,
>
> > On Fri, Apr 14, 2017 at 12:48:17PM -0700, Luebbers, Enno wrote:
> >> On Wed, Apr 12, 2017 at 11:37:49AM -0400, Jerome Glisse wrote:
> >> > On Wed, Apr 12, 2017 at 07:46:19AM -0700, Moritz Fischer wrote:
> >> > > On Wed, Apr 12, 2017 at 6:29 AM, Jerome Glisse <jglisse@redhat.com> wrote:
> >> > >
> >> > > > It is like if on GPU we only had close source compiler for the GPU
> >> > > > instructions set. So FPGA is definitly following different rules than
> >> > > > open source upstream GPU kernel driver abides to.
>
> Sorry, not a GPU guy, can you point me to something that documents
> this policy of 'only opensource compilers for GPU'? I looked under
> linux/Documentation and didn't see anything.
https://lists.freedesktop.org/archives/dri-devel/2010-July/001828.html
There is no explicit mention about compiler but trust me it is included
in everyones mind. You can ask Dave i am sure he would reject a driver
with everything open except the shader compiler.
> The current patchset doesn't have anything to do with FPGA toolchains
> but you're using this patchset as a platform to talk about toolchain
> issues.
Well Intel inclusion of FPGA triggered my curiosity and when that patchset
came accross my inbox i did wonder where the open source userspace was and
went looking for it to no avail. So this isn't against a specific patchset
but more broadly against the whole drivers/fpga/ story. Sorry if this was
not clear.
> It sounds like you are opposed to any kernel support of loading images
> on FPGAs until all vendors have opensource toolchains.
Yes that is what i am saying. They are different standard in the kernel
and i would rather have one clear standard about driver needing proper
open source userspace to go along with any upstream driver.
Beside when it comes to FPGA i am still puzzle on why no one release info
on the bitstream. They all provide details documentation on the internal
(LUT, flip-flop, logic block layout and connection, memory block, ...).
So there is nothing hidden in the bitstream. I am guessing the only good
reason i can think of is to make it harder to map a bitstream back to
VHDL/Verilog/...
Cheers,
Jérôme
next prev parent reply other threads:[~2017-04-17 15:57 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-30 12:08 [PATCH 00/16] Intel FPGA Device Drivers Wu Hao
2017-03-30 12:08 ` [PATCH 01/16] docs: fpga: add a document for Intel FPGA driver overview Wu Hao
2017-03-31 18:24 ` matthew.gerlach
2017-03-31 18:38 ` Alan Tull
2017-04-01 11:16 ` Wu Hao
2017-04-02 14:41 ` Moritz Fischer
2017-04-03 20:44 ` Alan Tull
2017-04-04 5:24 ` Wu Hao
2017-04-04 5:06 ` Wu Hao
2017-04-11 18:02 ` Alan Tull
2017-04-12 3:22 ` Wu, Hao
2017-03-30 12:08 ` [PATCH 02/16] fpga: add FPGA device framework Wu Hao
2017-03-31 6:09 ` Greg KH
2017-03-31 7:48 ` Wu Hao
2017-03-31 9:03 ` Greg KH
2017-03-31 12:19 ` Wu Hao
2017-03-31 19:01 ` matthew.gerlach
2017-04-01 12:18 ` Wu Hao
2017-07-25 21:32 ` Alan Tull
2017-07-26 9:50 ` Wu Hao
2017-07-26 14:20 ` Alan Tull
2017-07-26 22:29 ` Alan Tull
2017-07-27 4:54 ` Wu Hao
2017-03-31 6:13 ` Greg KH
[not found] ` <82D7661F83C1A047AF7DC287873BF1E167C90F1B@SHSMSX101.ccr.corp.intel.com>
2017-03-31 13:31 ` Wu Hao
2017-03-31 14:10 ` Greg KH
2017-04-01 11:36 ` Wu Hao
2017-03-30 12:08 ` [PATCH 03/16] fpga: intel: add FPGA PCIe device driver Wu Hao
2017-04-04 2:10 ` Moritz Fischer
2017-04-05 13:14 ` Wu, Hao
2017-03-30 12:08 ` [PATCH 04/16] fpga: intel: pcie: parse feature list and create platform device for features Wu Hao
2017-04-03 21:44 ` Alan Tull
2017-04-05 11:58 ` Wu Hao
2017-04-11 20:21 ` Alan Tull
2017-04-13 4:12 ` Wu, Hao
2017-04-04 2:44 ` Moritz Fischer
2017-04-05 12:57 ` Wu Hao
2017-04-04 22:09 ` Alan Tull
2017-04-05 14:09 ` Wu Hao
2017-05-04 15:13 ` Li, Yi
2017-05-05 3:03 ` Wu Hao
2017-03-30 12:08 ` [PATCH 05/16] fpga: intel: pcie: add chardev support for feature devices Wu Hao
2017-03-30 12:08 ` [PATCH 06/16] fpga: intel: pcie: adds fpga_for_each_port callback for fme device Wu Hao
2017-03-30 12:08 ` [PATCH 07/16] fpga: intel: add feature device infrastructure Wu Hao
2017-03-30 12:08 ` [PATCH 08/16] fpga: intel: add FPGA Management Engine driver basic framework Wu Hao
2017-03-30 12:08 ` [PATCH 09/16] fpga: intel: fme: add header sub feature support Wu Hao
2017-03-30 12:08 ` [PATCH 10/16] fpga: intel: fme: add FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support Wu Hao
2017-03-30 12:08 ` [PATCH 11/16] fpga: intel: fme: add partial reconfiguration sub feature support Wu Hao
2017-03-30 20:30 ` Alan Tull
2017-03-31 4:11 ` Xiao Guangrong
2017-03-31 8:50 ` Wu Hao
2017-04-03 20:26 ` Alan Tull
2017-04-04 5:25 ` Wu Hao
2017-03-31 19:10 ` Alan Tull
2017-04-01 11:08 ` Wu Hao
2017-04-03 16:30 ` Alan Tull
2017-04-04 6:05 ` Wu Hao
2017-04-04 22:37 ` Alan Tull
2017-04-05 11:40 ` Wu, Hao
2017-04-05 15:26 ` Alan Tull
2017-04-05 15:39 ` Alan Tull
2017-04-06 10:57 ` Wu Hao
2017-04-06 19:27 ` Alan Tull
2017-04-07 5:56 ` Wu Hao
2017-03-31 23:45 ` kbuild test robot
2017-04-01 1:12 ` kbuild test robot
2017-04-03 21:24 ` Alan Tull
2017-04-03 22:49 ` matthew.gerlach
2017-04-04 6:48 ` Wu Hao
2017-04-04 6:28 ` Wu Hao
2017-03-30 12:08 ` [PATCH 12/16] fpga: intel: add FPGA Accelerated Function Unit driver basic framework Wu Hao
2017-03-30 12:08 ` [PATCH 13/16] fpga: intel: afu: add header sub feature support Wu Hao
2017-03-30 12:08 ` [PATCH 14/16] fpga: intel: afu add FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support Wu Hao
2017-03-30 12:08 ` [PATCH 15/16] fpga: intel: afu: add user afu sub feature support Wu Hao
2017-03-30 12:08 ` [PATCH 16/16] fpga: intel: afu: add FPGA_PORT_DMA_MAP/UNMAP ioctls support Wu Hao
2017-04-01 0:00 ` kbuild test robot
2017-04-01 1:33 ` kbuild test robot
2017-03-30 17:17 ` [PATCH 00/16] Intel FPGA Device Drivers Moritz Fischer
2017-04-06 20:27 ` Jerome Glisse
2017-04-11 19:38 ` Luebbers, Enno
2017-04-12 13:29 ` Jerome Glisse
2017-04-12 14:46 ` Moritz Fischer
2017-04-12 15:37 ` Jerome Glisse
2017-04-14 19:48 ` Luebbers, Enno
2017-04-14 20:49 ` Jerome Glisse
2017-04-17 15:35 ` Alan Tull
2017-04-17 15:57 ` Jerome Glisse [this message]
2017-04-17 16:22 ` Alan Tull
2017-04-17 17:15 ` Jerome Glisse
2017-04-18 13:36 ` Alan Cox
2017-04-18 14:59 ` Jerome Glisse
2017-04-25 20:02 ` One Thousand Gnomes
2017-05-01 16:41 ` Jerome Glisse
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