From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755278AbdJIRSg (ORCPT ); Mon, 9 Oct 2017 13:18:36 -0400 Received: from home.keithp.com ([63.227.221.253]:45996 "EHLO elaine.keithp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754373AbdJIRSd (ORCPT ); Mon, 9 Oct 2017 13:18:33 -0400 From: "Keith Packard" To: Daniel Vetter Cc: Linux Kernel Mailing List , Dave Airlie , dri-devel Subject: Re: [PATCH 3/3] drm: Add CRTC_GET_SEQUENCE and CRTC_QUEUE_SEQUENCE ioctls [v2] In-Reply-To: References: <20170705221013.27940-1-keithp@keithp.com> <20170801050306.24423-1-keithp@keithp.com> <20170801050306.24423-4-keithp@keithp.com> <20170802092505.ynlpy6dxf3lxziim@phenom.ffwll.local> <87r2wpfk14.fsf@keithp.com> Date: Mon, 09 Oct 2017 10:18:30 -0700 Message-ID: <87bmlg44ux.fsf@keithp.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Daniel Vetter writes: > I just figured that -modesetting would be the simplest domenstration > vehicle, since the vulkan patches don't look ready yet. I need fully > reviewed&tested userspace before we can land any kernel stuff. Doing > the quick modesetting conversion would unblock. I've provided a patch for the modesetting driver and the preliminary bits are merged, leaving only a fairly straightforward addition of the new ioctls to that code. I'm not sure how to make more progress there at this point; that code would need testing, and it requires a hand-patched kernel to test. I also posted IGT tests for the new functionality, again, getting those reviewed and tested depends on someone willing to build a patched kernel. Dave Airlie has started trying to get that done. >> (regarding FIRST_PIXEL_OUT): >> >> If the timestamp is the only important thing, it sounds like the kernel >> already satisfies that, which is cool. > > Would be good to confirm that. If it's not, we have a problem. Michel D=C3=A4nzer says that the timestamp provided is computed to be first_pixel_out for all hardware. Given that, I suggest we specify that in the documentation and remove this bit from the API. Seem reasonable? =2D-=20 =2Dkeith --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEw4O3eCVWE9/bQJ2R2yIaaQAAABEFAlnbr2cACgkQ2yIaaQAA ABH7hQ//dQU2eA3Vnd1c0R2N0CXw1TEg57V4PhgVtIVf1vi2UJUrx0jAcfkm/9K0 hbGvfSX2dYk9W/IIyaVY1ooBzig+iPSdDkFqRfS1/AJXYfzM7YU1F6aAOtMeDjYy AMjWYhJgvGZd7HDAoWWTruNBtE7h73O/dG5p2PLb/EaEkB3jTURqW+b3ucUyFr9O UQEMaKuwNKSkTYmm0IJGKHfFQt055SKXH/KgfC41JqpvDnLbCe+S6qDAauscMPBi jnyz58zd2DWrmy5DlZrrat6sCi7Quxv+sDOIMQbAfpJ1ewFWIZLLu9ioZ9jxwxiI onI1ttXEMPZQZRK7W7DFSzTbXH36YsMLFyonXHe/bpGLiLm/kX2OzSu93sHZQO++ NdK70i+Z3ZK/kebJ5SBg7ZHoE6i0/K/izHyBMvMiCOLVrk+w0L3I1wk61SCsoVxR K2ROZ1OogLt6P7R35hGqwJJQrWRV67eDUPb/C4G/7T1mbQy/4usk4XfYVTHYg/PZ KADqWtxucmXxJkfZcS+Y8yUSRzwciBgDMXSuu/kLEta6COZ8snDeEknyoows8CUW HY3O1ZEpIF8GYAtr07gL7DPClIRVNbyNcGdQVT6AMb2lRWjWFVohXhF/2uvvc9P9 kcT+OmvRbn+YpNdCdmvrKMIAaM4jhrkq/zWlnCMA2B3Po52Mk1o= =Ohb2 -----END PGP SIGNATURE----- --=-=-=--