From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753614Ab3LNMjS (ORCPT ); Sat, 14 Dec 2013 07:39:18 -0500 Received: from mail-bk0-f42.google.com ([209.85.214.42]:45715 "EHLO mail-bk0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753460Ab3LNMjR (ORCPT ); Sat, 14 Dec 2013 07:39:17 -0500 Date: Sat, 14 Dec 2013 13:39:13 +0100 From: Thierry Reding To: Thomas Hellstrom Cc: Greg Kroah-Hartman , Sumit Semwal , linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: Re: [RFC] dma-buf: Implement test module Message-ID: <20131214123912.GF17467@mithrandir> References: <1386858989-1487-1-git-send-email-treding@nvidia.com> <52AA0FC4.3090606@vmware.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="4f28nU6agdXSinmL" Content-Disposition: inline In-Reply-To: <52AA0FC4.3090606@vmware.com> User-Agent: Mutt/1.5.22 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --4f28nU6agdXSinmL Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Dec 12, 2013 at 08:34:28PM +0100, Thomas Hellstrom wrote: > On 12/12/2013 03:36 PM, Thierry Reding wrote: > >This is a simple test module that can be used to allocate, export and > >delete DMA-BUF objects. It can be used to test DMA-BUF sharing in > >systems that lack a real second driver. > > > > >=20 > Looks nice. I wonder whether this could be extended to create a "streamin= g" > dma-buf from a user space mapping. That could be used as a generic way to > implement streaming (user) buffer objects, rather than to add explicit > support for those in, for example, TTM. I'm somewhat reluctant to beef this up needlessly to prevent it from being used for purposes other than testing. Thierry --4f28nU6agdXSinmL Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJSrFFwAAoJEN0jrNd/PrOhLJ4P+gMyHIBKKHsorpmlBOJrWbYG FqXH7BjPNh3wTI7zLC7MSdzN+ErBs5YfbyejTCQPDf0e+Adql7zVskx+0ond7H7A OrXUDTdM5b7sdDX8W3VZMUknk3ZcZmCNSmGdf53afkejxttT5h2/HMvSziPCsoa2 2idcPB/fUa51pnYtOJD7faPPOFhGoia02wqQn4iEU3hOBr3Ay/jbnOzkaExNtBQv dx8cLxt27fl8KYBwThBpMfwwX5HvpgXPYgVKgihSP5zKzwznSCvI4eX8i3G5+i4j b2ZPEHUbquyaERzE80TERejHNZsm4u4G7XNB/xBaCndDc9vPJ3HuTT+wH7/xf2jL /auXoeXwSZbKSf47m5YnR3JJ3+BbWN0wnlcwIXNreSmf4FNA+TyUjyRvuIaJeBAd qvD4Twlnaeu/yq7BKABG/czAMM57ZoGERQsIzC1EcT6gWDaV41AL81a0YOMN6j3a /+YY1G742Y5I2hfFTz75/p4JqvQMSIFNfAER/k0esXp4v3faJTV6pZ9Fj/UhwIOh 1naVROu6AbUIZf+mcKYOW3VWCeDcohmMF5d9awwjwo/XnVzg/1cpj2O/iLDrMNQ+ yBE1wZ5tdwYODV224dmPzma3kucZJo2hvoebMxE+0RdBnT0pRP3eH9bJj8HFVi08 6IZ9yi/jWblqKkTDYaVn =fZEz -----END PGP SIGNATURE----- --4f28nU6agdXSinmL--