1 /*
2 * Copyright (C) 2016 Christian Gmeiner <[email protected]>
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 "kmsro_drm_public.h"
29 #include "v3d/drm/v3d_drm_public.h"
30 #include "vc4/drm/vc4_drm_public.h"
31 #include "etnaviv/drm/etnaviv_drm_public.h"
32 #include "freedreno/drm/freedreno_drm_public.h"
33 #include "panfrost/drm/panfrost_drm_public.h"
34 #include "lima/drm/lima_drm_public.h"
35 #include "asahi/drm/asahi_drm_public.h"
36 #include "xf86drm.h"
37
38 #include "pipe/p_screen.h"
39 #include "pipe-loader/pipe_loader.h"
40 #include "renderonly/renderonly.h"
41 #include "util/u_memory.h"
42
43 #include "loader.h"
44
kmsro_ro_destroy(struct renderonly * ro)45 static void kmsro_ro_destroy(struct renderonly *ro)
46 {
47 if (ro->gpu_fd >= 0)
48 close(ro->gpu_fd);
49
50 util_sparse_array_finish(&ro->bo_map);
51
52 FREE(ro);
53 }
54
kmsro_drm_screen_create(int kms_fd,const struct pipe_screen_config * config)55 struct pipe_screen *kmsro_drm_screen_create(int kms_fd,
56 const struct pipe_screen_config *config)
57 {
58 struct pipe_screen *screen = NULL;
59 struct renderonly *ro = CALLOC_STRUCT(renderonly);
60 char *render_dev_name = NULL;
61
62 if (!ro)
63 return NULL;
64
65 ro->kms_fd = kms_fd;
66 ro->gpu_fd = pipe_loader_get_compatible_render_capable_device_fd(kms_fd);
67 if (ro->gpu_fd < 0) {
68 FREE(ro);
69 return NULL;
70 }
71
72 render_dev_name = loader_get_kernel_driver_name(ro->gpu_fd);
73 if (!render_dev_name) {
74 close(ro->gpu_fd);
75 FREE(ro);
76 return NULL;
77 }
78
79 ro->destroy = kmsro_ro_destroy;
80 util_sparse_array_init(&ro->bo_map, sizeof(struct renderonly_scanout), 64);
81 simple_mtx_init(&ro->bo_map_lock, mtx_plain);
82
83 if (strcmp(render_dev_name, "asahi") == 0) {
84 #if defined(GALLIUM_ASAHI)
85 ro->create_for_resource = renderonly_create_gpu_import_for_resource;
86 screen = asahi_drm_screen_create_renderonly(ro->gpu_fd, ro, config);
87 #endif
88 }
89 else if (strcmp(render_dev_name, "etnaviv") == 0) {
90 #if defined(GALLIUM_ETNAVIV)
91 ro->create_for_resource = renderonly_create_kms_dumb_buffer_for_resource;
92 screen = etna_drm_screen_create_renderonly(ro->gpu_fd, ro, config);
93 #endif
94 } else if (strcmp(render_dev_name, "msm") == 0) {
95 #if defined(GALLIUM_FREEDRENO)
96 ro->create_for_resource = renderonly_create_kms_dumb_buffer_for_resource;
97 screen = fd_drm_screen_create_renderonly(ro->gpu_fd, ro, config);
98 #endif
99 } else if (strcmp(render_dev_name, "lima") == 0) {
100 #if defined(GALLIUM_LIMA)
101 ro->create_for_resource = renderonly_create_kms_dumb_buffer_for_resource;
102 screen = lima_drm_screen_create_renderonly(ro->gpu_fd, ro, config);
103 #endif
104 } else if (strcmp(render_dev_name, "panfrost") == 0 ||
105 strcmp(render_dev_name, "panthor") == 0) {
106 #if defined(GALLIUM_PANFROST)
107 ro->create_for_resource = panfrost_create_kms_dumb_buffer_for_resource;
108 screen = panfrost_drm_screen_create_renderonly(ro->gpu_fd, ro, config);
109 #endif
110 } else if (strcmp(render_dev_name, "v3d") == 0) {
111 #if defined(GALLIUM_V3D)
112 ro->create_for_resource = renderonly_create_kms_dumb_buffer_for_resource;
113 screen = v3d_drm_screen_create_renderonly(ro->gpu_fd, ro, config);
114 #endif
115 } else if (strcmp(render_dev_name, "vc4") == 0) {
116 #if defined(GALLIUM_VC4)
117 /* Passes the vc4-allocated BO through to the KMS-only DRM device using
118 * PRIME buffer sharing. The VC4 BO must be linear, which the SCANOUT
119 * flag on allocation will have ensured.
120 */
121 ro->create_for_resource = renderonly_create_gpu_import_for_resource;
122 screen = vc4_drm_screen_create_renderonly(ro->gpu_fd, ro, config);
123 #endif
124 }
125
126 free(render_dev_name);
127
128 return screen;
129 }
130