From mboxrd@z Thu Jan 1 00:00:00 1970 From: Damien Lespiau Subject: Re: [Linaro-mm-sig] [RFC 0/4] Atomic Display Framework Date: Thu, 29 Aug 2013 09:52:56 +0100 Message-ID: <20130829085256.GA10489@strange.amr.corp.intel.com> References: <1377741081-30189-1-git-send-email-ghackmann@google.com> <20130829075851.GE11428@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id B99B2E5F86 for ; Thu, 29 Aug 2013 01:52:58 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20130829075851.GE11428@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Cc: "linaro-mm-sig@lists.linaro.org" , Daniel Vetter , Erik Gilling , "dri-devel@lists.freedesktop.org" List-Id: dri-devel@lists.freedesktop.org On Thu, Aug 29, 2013 at 10:58:51AM +0300, Ville Syrj=E4l=E4 wrote: > After that we need to figure out how we can expose them to userspace w/o > risking breaking stuff too much. Maybe a new ioctl to enumerate private > planes only? And the maybe only accept direct use of private planes via > the atomic API, not through the old setplane API. Or if people want to > use setplane we could add a flag there indicating that the user is aware > of private planes and wants to use them. FWIW, in my yet to be published new stereo 3D series, I added a DRM_SET_CAP ioctl for userspace to tell DRM to expose some stereo bits in the mode structure. Making it possible for the primary plane to be exposed as a drm_plane could be the second user of this ioctl (well, assuming people are fine with this new ioctl, a whole different story, but now that'd be 2 users of it). -- = Damien