1 /*
2 * Copyright (C) 2016 Christian Gmeiner <christian.gmeiner@gmail.com>
3 * Copyright (C) 2017 Broadcom
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
25 #include <fcntl.h>
26 #include <unistd.h>
27
28 #include "pl111_drm_public.h"
29 #include "vc4/drm/vc4_drm_public.h"
30 #include "xf86drm.h"
31
32 #include "pipe/p_screen.h"
33 #include "renderonly/renderonly.h"
34
pl111_drm_screen_create(int fd)35 struct pipe_screen *pl111_drm_screen_create(int fd)
36 {
37 struct renderonly ro = {
38 /* Passes the vc4-allocated BO through to the pl111 DRM device using
39 * PRIME buffer sharing. The VC4 BO must be linear, which the SCANOUT
40 * flag on allocation will have ensured.
41 */
42 .create_for_resource = renderonly_create_gpu_import_for_resource,
43 .kms_fd = fd,
44 .gpu_fd = drmOpenWithType("vc4", NULL, DRM_NODE_RENDER),
45 };
46
47 if (ro.gpu_fd < 0)
48 return NULL;
49
50 struct pipe_screen *screen = vc4_drm_screen_create_renderonly(&ro);
51 if (!screen)
52 close(ro.gpu_fd);
53
54 return screen;
55 }
56