1 /*
2 * Copyright © 2014 Broadcom
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <sys/ioctl.h>
27
28 #include "util/os_file.h"
29 #include "util/u_screen.h"
30
31 #include "renderonly/renderonly.h"
32 #include "kmsro/drm/kmsro_drm_public.h"
33 #include "vc4_drm_public.h"
34 #include "vc4/vc4_screen.h"
35 #include "drm-uapi/vc4_drm.h"
36
37 struct pipe_screen *
vc4_drm_screen_create(int fd,const struct pipe_screen_config * config)38 vc4_drm_screen_create(int fd, const struct pipe_screen_config *config)
39 {
40 bool v3d_present = true;
41
42 #ifndef USE_VC4_SIMULATOR
43 struct drm_vc4_get_param ident0 = {
44 .param = DRM_VC4_PARAM_V3D_IDENT0,
45 };
46
47 int ret = ioctl(fd, DRM_IOCTL_VC4_GET_PARAM, &ident0);
48 v3d_present = ret == 0;
49 #endif
50
51 if (v3d_present)
52 return u_pipe_screen_lookup_or_create(os_dupfd_cloexec(fd), config,
53 NULL, vc4_screen_create);
54
55 #ifdef GALLIUM_KMSRO
56 return kmsro_drm_screen_create(fd, config);
57 #endif
58
59 return NULL;
60 }
61
62 struct pipe_screen *
vc4_drm_screen_create_renderonly(int fd,struct renderonly * ro,const struct pipe_screen_config * config)63 vc4_drm_screen_create_renderonly(int fd, struct renderonly *ro,
64 const struct pipe_screen_config *config)
65 {
66 return u_pipe_screen_lookup_or_create(os_dupfd_cloexec(fd), config,
67 ro, vc4_screen_create);
68 }
69