From owner-freebsd-emulation@freebsd.org  Mon Jul  3 22:47:18 2017
Return-Path: <owner-freebsd-emulation@freebsd.org>
Delivered-To: freebsd-emulation@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8FE429F12D4
 for <freebsd-emulation@mailman.ysv.freebsd.org>;
 Mon,  3 Jul 2017 22:47:18 +0000 (UTC)
 (envelope-from jbeich@freebsd.org)
Received: from mailman.ysv.freebsd.org (unknown [127.0.1.3])
 by mx1.freebsd.org (Postfix) with ESMTP id 7DC4984576
 for <freebsd-emulation@freebsd.org>; Mon,  3 Jul 2017 22:47:18 +0000 (UTC)
 (envelope-from jbeich@freebsd.org)
Received: by mailman.ysv.freebsd.org (Postfix)
 id 7A2129F12D3; Mon,  3 Jul 2017 22:47:18 +0000 (UTC)
Delivered-To: emulation@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 780869F12D2
 for <emulation@mailman.ysv.freebsd.org>; Mon,  3 Jul 2017 22:47:18 +0000 (UTC)
 (envelope-from jbeich@freebsd.org)
Received: from freefall.freebsd.org (freefall.freebsd.org [96.47.72.132])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "freefall.freebsd.org",
 Issuer "Let's Encrypt Authority X3" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 4DF4D84575;
 Mon,  3 Jul 2017 22:47:18 +0000 (UTC)
 (envelope-from jbeich@freebsd.org)
Received: by freefall.freebsd.org (Postfix, from userid 1354)
 id 78C51151BE; Mon,  3 Jul 2017 22:47:17 +0000 (UTC)
From: Jan Beich <jbeich@FreeBSD.org>
To: Yuri <yuri@rawbw.com>
Cc: emulation@freebsd.org
Subject: Re: CUDA and FreeBSD: can linux kernel module be ported to FreeBSD?
References: <ee7d9cb2-92d6-2d01-c90b-2fbdd4a7698c@rawbw.com>
Date: Tue, 04 Jul 2017 00:47:12 +0200
In-Reply-To: <ee7d9cb2-92d6-2d01-c90b-2fbdd4a7698c@rawbw.com>
 (yuri@rawbw.com's message of "Sat, 1 Jul 2017 11:04:27 -0700")
Message-ID: <lgo5-2l5b-wny@FreeBSD.org>
MIME-Version: 1.0
Content-Type: text/plain
X-BeenThere: freebsd-emulation@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: Development of Emulators of other operating systems
 <freebsd-emulation.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-emulation>, 
 <mailto:freebsd-emulation-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-emulation/>
List-Post: <mailto:freebsd-emulation@freebsd.org>
List-Help: <mailto:freebsd-emulation-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-emulation>, 
 <mailto:freebsd-emulation-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 03 Jul 2017 22:47:18 -0000

(redirected from https://lists.freebsd.org/pipermail/freebsd-hackers/2017-July/051220.html )
Yuri <yuri@rawbw.com> writes:

> NVidia CUDA toolkit (https://developer.nvidia.com/cuda-downloads)
> contains a lot of rpms.
>
> The kernel module rpm nvidia-kmod-375.26-2.el7.x86_64.rpm actually
> contains linux kernel module sources. The rest of rpms contain binary
> userland utilities.

See bug 206711. 64bit CUDA maybe broken unless the error confusingly
indicates the lack of hardware support a la nvEncodeAPI. I can still
reproduce on nvidia-driver-384.47.

Before confirming make sure linuxulator passes through 64bit DRM ioctls
by testing a 64bit OpenGL app. If OpenGL still fails apply the patch.
For one, www/linux-flashplayer installs 32bit plugin thus x11/nvidia-driver
users may not have noticed.

> So if somebody could port those kernel sources into the FreeBSD kernel
> module, CUDA could be used over the linux emulation level?

Why? 32bit CUDA should work fine but performance may suffer.

https://web.archive.org/web/20120717065328/http://blogs.freebsdish.org/jhb/2010/07/20/using-cuda-with-the-native-freebsdamd64-nvidia-driver/