1*0bb1c6edSriastradh /* $NetBSD: drm_writeback.c,v 1.1 2021/12/19 10:46:02 riastradh Exp $ */
2*0bb1c6edSriastradh
3*0bb1c6edSriastradh /*-
4*0bb1c6edSriastradh * Copyright (c) 2020 The NetBSD Foundation, Inc.
5*0bb1c6edSriastradh * All rights reserved.
6*0bb1c6edSriastradh *
7*0bb1c6edSriastradh * Redistribution and use in source and binary forms, with or without
8*0bb1c6edSriastradh * modification, are permitted provided that the following conditions
9*0bb1c6edSriastradh * are met:
10*0bb1c6edSriastradh * 1. Redistributions of source code must retain the above copyright
11*0bb1c6edSriastradh * notice, this list of conditions and the following disclaimer.
12*0bb1c6edSriastradh * 2. Redistributions in binary form must reproduce the above copyright
13*0bb1c6edSriastradh * notice, this list of conditions and the following disclaimer in the
14*0bb1c6edSriastradh * documentation and/or other materials provided with the distribution.
15*0bb1c6edSriastradh *
16*0bb1c6edSriastradh * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17*0bb1c6edSriastradh * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18*0bb1c6edSriastradh * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19*0bb1c6edSriastradh * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20*0bb1c6edSriastradh * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21*0bb1c6edSriastradh * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22*0bb1c6edSriastradh * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23*0bb1c6edSriastradh * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24*0bb1c6edSriastradh * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25*0bb1c6edSriastradh * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26*0bb1c6edSriastradh * POSSIBILITY OF SUCH DAMAGE.
27*0bb1c6edSriastradh */
28*0bb1c6edSriastradh
29*0bb1c6edSriastradh #include <sys/cdefs.h>
30*0bb1c6edSriastradh __KERNEL_RCSID(0, "$NetBSD: drm_writeback.c,v 1.1 2021/12/19 10:46:02 riastradh Exp $");
31*0bb1c6edSriastradh
32*0bb1c6edSriastradh #include <drm/drm_writeback.h>
33*0bb1c6edSriastradh
34*0bb1c6edSriastradh struct drm_writeback_connector *
drm_connector_to_writeback(struct drm_connector * connector)35*0bb1c6edSriastradh drm_connector_to_writeback(struct drm_connector *connector)
36*0bb1c6edSriastradh {
37*0bb1c6edSriastradh
38*0bb1c6edSriastradh return container_of(connector, struct drm_writeback_connector, base);
39*0bb1c6edSriastradh }
40*0bb1c6edSriastradh
41*0bb1c6edSriastradh struct dma_fence *
drm_writeback_get_out_fence(struct drm_writeback_connector * wbconn)42*0bb1c6edSriastradh drm_writeback_get_out_fence(struct drm_writeback_connector *wbconn)
43*0bb1c6edSriastradh {
44*0bb1c6edSriastradh panic("writeback connectors not implemented");
45*0bb1c6edSriastradh return NULL;
46*0bb1c6edSriastradh }
47*0bb1c6edSriastradh
48*0bb1c6edSriastradh int
drm_writeback_prepare_job(struct drm_writeback_job * wbj)49*0bb1c6edSriastradh drm_writeback_prepare_job(struct drm_writeback_job *wbj)
50*0bb1c6edSriastradh {
51*0bb1c6edSriastradh panic("writeback connectors not implemented");
52*0bb1c6edSriastradh return -ENXIO;
53*0bb1c6edSriastradh }
54*0bb1c6edSriastradh
55*0bb1c6edSriastradh void
drm_writeback_cleanup_job(struct drm_writeback_job * job)56*0bb1c6edSriastradh drm_writeback_cleanup_job(struct drm_writeback_job *job)
57*0bb1c6edSriastradh {
58*0bb1c6edSriastradh panic("writeback connectors not implemented");
59*0bb1c6edSriastradh }
60*0bb1c6edSriastradh
61*0bb1c6edSriastradh int
drm_writeback_set_fb(struct drm_connector_state * state,struct drm_framebuffer * fb)62*0bb1c6edSriastradh drm_writeback_set_fb(struct drm_connector_state *state,
63*0bb1c6edSriastradh struct drm_framebuffer *fb)
64*0bb1c6edSriastradh {
65*0bb1c6edSriastradh panic("writeback connectors not implemented");
66*0bb1c6edSriastradh return -ENXIO;
67*0bb1c6edSriastradh }
68