From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomi Valkeinen Subject: Re: [PATCH] omap2+: add drm device Date: Thu, 24 May 2012 15:13:01 +0300 Message-ID: <1337861581.12304.7.camel@deskari> References: <1337803690-30116-1-git-send-email-andy.gross@ti.com> <1337839294.2764.7.camel@lappyti> <1337843144.2909.17.camel@deskari> <1337844098.2909.20.camel@deskari> Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-aa8xVZoQSIECn17iPwzz" Return-path: Received: from na3sys009aob106.obsmtp.com ([74.125.149.76]:43800 "EHLO na3sys009aog106.obsmtp.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753969Ab2EXMNI (ORCPT ); Thu, 24 May 2012 08:13:08 -0400 Received: by lban1 with SMTP id n1so7097519lba.24 for ; Thu, 24 May 2012 05:13:05 -0700 (PDT) In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Rob Clark Cc: greg@kroah.com, linux-omap@vger.kernel.org, dri-devel@lists.freedesktop.org --=-aa8xVZoQSIECn17iPwzz Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, 2012-05-24 at 02:44 -0600, Rob Clark wrote: > but other drivers *can* use tiler, thanks to dmabuf.. I have omap4iss > v4l2 camera working w/ tiler buffers on my pandaboard, for example. >=20 > Maybe fbdev is an exception to the rule because it has no way for > userspace to pass it a buffer to use. But on the other hand it is a > legacy API so I'm not sure if it is worth loosing too much sleep over > that. I'm not that familiar with dmabuf, but are you saying it's not possible for a kernel driver to request the buffers? They _must_ come from the userspace? Anyway, even if it would be possible, if the tiler is a part of omapdrm we need omapdrm to get and use the tiler buffers. And we can't have omapdrm running when using omapfb, because they both use omapdss. Tomi --=-aa8xVZoQSIECn17iPwzz Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJPviXNAAoJEPo9qoy8lh71Qa8P/2iRlGMz0T6SpZ73/Vk5IdCN u1Cf0T6svJPm8Sd8Emxdy7Evq5u7d91SxdqEXbyxfFGFD4EkTL3CeM6zsYD1s6+x i4mgr6Wo3LlkrMHosmgJUxW9ZOf1Msb88BRkITLhqNSl1WlYGvhjXsMI+EKeudPU BYj6EtD3qCqGeruwAYnwdSoCzjIFzUN7J5tcvsGJ4FTOUk1kNjm1YcNPEf6BK0jI CY1K1C/lfpOab7O8LLTT0GWldFDtuDjmvN2jhhP62JcqO9jo7guyRwIWcKhUoxP9 7hOuS9cHdS4zYeol20upN8SKf0jr/bRPSdmdLSe0DgCxRnoaaCp9WVrvgipHTIOc vS/moczwgg4vPNNAEfi8sdIoAEE4o+bz3fTxuI9YVbg95fDU9BBYXCwqGqGx4BmN OZzyKek3jHa3YC+EOf9T08GMiSXLvahuC09a5vtAQHjIDJIuTFOiwu5ZkhxGdktK f/UspDaoVJH57ePY73KeQQMh/yCb/qOZmrw7gVrvP9Wa2184R5R5yYZtNj3+fXlc foHMa2nPrLSSsd3HDiDpO/2WseYFpdD4ujgas73XHMwzgBa25vGXbAObHCoBvnSE IC3ZNh0AXbN7HJMEEJIqZqALEJpukzPhIc8tZ1PEZUmFM4vm+ujrq6y6WBiSLC95 M8FbwMkjmIdqOy1Z0I+C =/kEv -----END PGP SIGNATURE----- --=-aa8xVZoQSIECn17iPwzz--