From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0EB41C10F11 for ; Wed, 10 Apr 2019 10:56:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D8ED420850 for ; Wed, 10 Apr 2019 10:56:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730808AbfDJK43 (ORCPT ); Wed, 10 Apr 2019 06:56:29 -0400 Received: from mx25lb.world4you.com ([81.19.149.135]:36402 "EHLO mx25lb.world4you.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730637AbfDJK43 (ORCPT ); Wed, 10 Apr 2019 06:56:29 -0400 X-Greylist: delayed 1571 seconds by postgrey-1.27 at vger.kernel.org; Wed, 10 Apr 2019 06:56:27 EDT Received: from [81.19.149.44] (helo=webmail.world4you.com) by mx25lb.world4you.com with esmtpa (Exim 4.91) (envelope-from ) id 1hEAUg-0002Ii-Ro; Wed, 10 Apr 2019 12:30:14 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Wed, 10 Apr 2019 12:30:14 +0200 From: Eric Schwarz To: federico.vaga@cern.ch Cc: linux-kernel@vger.kernel.org, linux-fpga@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-x86_64@vger.kernel.org, linux-fpga-owner@vger.kernel.org Subject: Re: Device Description for FPGA Components on x86 system In-Reply-To: <6563205.xRkLC0driV@pcbe13614> References: <1629227.alSmCsHHUc@pcbe13614> <6563205.xRkLC0driV@pcbe13614> Message-ID: X-Sender: eas@sw-optimization.com User-Agent: World4You Webmail X-SA-Do-Not-Run: Yes X-AV-Do-Run: Yes Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Hi, everything you want is already available and on the way to mainline concerning support for various FPGA loading modes or available for checkout from a git repository. All that has already been discussed on the mailing list. FPGA loading interface is available here [1]. Patchset missing for FPGA loading has been sent to the mailing list from Anatolij Gustschin for various Linux kernel versions. Link to the most recent patchset version [2]. FPGA Manager mailing list archive link [3] - Please read up the story here around those patches and also the replies of the others. Cheers Eric [1] https://github.com/vdsao/fpga-cfg [2] https://marc.info/?l=linux-fpga&m=155078072107199&w=2 [3] https://marc.info/?l=linux-fpga Am 10.04.2019 12:01, schrieb Federico Vaga: > Hello, > > sorry to push for an answer but I do not want to take the risk of > designing > something useless. I do not know how should I interpret a no-answer. > > If the solution really does not exist today, then I would like to > collect > opinions/arguments/requirements on the topic so that I can write > something > useful not only for CERN but for the entire community. > > Thank you > > On Wednesday, March 27, 2019 6:17:18 PM CEST Federico Vaga wrote: > >> Hello, >> >> I'm looking for guidance >> >> What I have: >> * Intel x86_64 computer >> * PCIe card with FPGA on it >> >> What I want to achieve: >> * load an FPGA bitstream on the card >> * load a device-tree like description for the FPGA devices contained >> in the >> bitstream >> >> This is achievable on ARM with DeviceTree, overlay-dt, fpga-mgr; but >> I'm >> puzzled about the x86_64 use-case. I'm not able to find recent and >> clear >> information. >> >> Does anyone know if this is doable? Perhaps with ACPI SSDTs overlay? >> Or with >> the DT? >> >> thanks