1 /*
2 * Copyright © 2018 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
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 #include <stdio.h>
25 #include <sys/ioctl.h>
26 #include "drm-uapi/v3d_drm.h"
27 #include "drm-shim/drm_shim.h"
28 #include "v3d.h"
29 #include "v3d_simulator_wrapper.h"
30
31 bool drm_shim_driver_prefers_first_render_node = false;
32
33 static struct v3d_device_info devinfo;
34 struct v3d_shim_device v3d = {
35 .devinfo = &devinfo
36 };
37
v3d_bo_lookup(struct shim_fd * shim_fd,int handle)38 struct v3d_bo *v3d_bo_lookup(struct shim_fd *shim_fd, int handle)
39 {
40 return v3d_bo(drm_shim_bo_lookup(shim_fd, handle));
41 }
42
43 int
v3d_ioctl_wait_bo(int fd,unsigned long request,void * arg)44 v3d_ioctl_wait_bo(int fd, unsigned long request, void *arg)
45 {
46 /* No need to wait on anything yet, given that we submit
47 * synchronously.
48 */
49 return 0;
50 }
51
52 int
v3d_ioctl_mmap_bo(int fd,unsigned long request,void * arg)53 v3d_ioctl_mmap_bo(int fd, unsigned long request, void *arg)
54 {
55 struct shim_fd *shim_fd = drm_shim_fd_lookup(fd);
56 struct drm_v3d_mmap_bo *map = arg;
57 struct shim_bo *bo = drm_shim_bo_lookup(shim_fd, map->handle);
58
59 map->offset = drm_shim_bo_get_mmap_offset(shim_fd, bo);
60
61 drm_shim_bo_put(bo);
62
63 return 0;
64 }
65
66 int
v3d_ioctl_get_bo_offset(int fd,unsigned long request,void * arg)67 v3d_ioctl_get_bo_offset(int fd, unsigned long request, void *arg)
68 {
69 struct shim_fd *shim_fd = drm_shim_fd_lookup(fd);
70 struct drm_v3d_get_bo_offset *get = arg;
71 struct v3d_bo *bo = v3d_bo_lookup(shim_fd, get->handle);
72
73 get->offset = bo->offset;
74
75 drm_shim_bo_put(&bo->base);
76
77 return 0;
78 }
79
80 void
drm_shim_driver_init(void)81 drm_shim_driver_init(void)
82 {
83 shim_device.bus_type = DRM_BUS_PLATFORM;
84 shim_device.driver_name = "v3d";
85
86 drm_shim_override_file("OF_FULLNAME=/rdb/v3d\n"
87 "OF_COMPATIBLE_N=1\n"
88 "OF_COMPATIBLE_0=brcm,7278-v3d\n",
89 "/sys/dev/char/%d:%d/device/uevent",
90 DRM_MAJOR, render_node_minor);
91
92 v3d.hw = v3d_hw_auto_new(NULL);
93 v3d.devinfo->ver = v3d_hw_get_version(v3d.hw);
94
95 if (v3d.devinfo->ver >= 42)
96 v3d42_drm_shim_driver_init();
97 else if (v3d.devinfo->ver >= 41)
98 v3d41_drm_shim_driver_init();
99 else
100 v3d33_drm_shim_driver_init();
101 }
102