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
30#include "renderonly/renderonly.h"
31#include "kmsro/drm/kmsro_drm_public.h"
32#include "vc4_drm_public.h"
33#include "vc4/vc4_screen.h"
34#include "drm-uapi/vc4_drm.h"
35
36struct pipe_screen *
37vc4_drm_screen_create(int fd, const struct pipe_screen_config *config)
38{
39   bool v3d_present = true;
40
41#ifndef USE_VC4_SIMULATOR
42   struct drm_vc4_get_param ident0 = {
43      .param = DRM_VC4_PARAM_V3D_IDENT0,
44   };
45
46   int ret = ioctl(fd, DRM_IOCTL_VC4_GET_PARAM, &ident0);
47   v3d_present = ret == 0;
48#endif
49
50   if (v3d_present)
51      return vc4_screen_create(os_dupfd_cloexec(fd), NULL);
52
53#ifdef GALLIUM_KMSRO
54   return kmsro_drm_screen_create(fd, config);
55#endif
56
57   return NULL;
58}
59
60struct pipe_screen *
61vc4_drm_screen_create_renderonly(struct renderonly *ro,
62                                 const struct pipe_screen_config *config)
63{
64   return vc4_screen_create(fcntl(ro->gpu_fd, F_DUPFD_CLOEXEC, 3), ro);
65}
66