2 * Copyright © 2011 Intel Corporation
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:
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
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * 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
22 * DEALINGS IN THE SOFTWARE.
25 * Kristian Høgsberg <krh@bitplanet.net>
26 * Benjamin Franzke <benjaminfranzke@googlemail.com>
30 #include "util/u_string.h"
31 #include "util/u_memory.h"
35 #include "gbm_gallium_drmint.h"
36 #include "pipe_loader.h"
37 #define DRIVER_MAP_GALLIUM_ONLY
38 #include "pci_ids/pci_id_driver_map.h"
40 static struct pipe_module pipe_modules
[16];
43 loader_strdup(const char *str
)
45 return mem_dup(str
, strlen(str
) + 1);
49 drm_fd_get_screen_name(int fd
)
52 struct udev_device
*device
, *parent
;
55 int vendor_id
, chip_id
, i
, j
;
58 device
= _gbm_udev_device_new_from_fd(udev
, fd
);
62 parent
= udev_device_get_parent(device
);
64 fprintf(stderr
, "gbm: could not get parent device");
68 pci_id
= udev_device_get_property_value(parent
, "PCI_ID");
70 sscanf(pci_id
, "%x:%x", &vendor_id
, &chip_id
) != 2) {
71 fprintf(stderr
, "gbm: malformed or no PCI ID");
75 for (i
= 0; driver_map
[i
].driver
; i
++) {
76 if (vendor_id
!= driver_map
[i
].vendor_id
)
78 if (driver_map
[i
].num_chips_ids
== -1) {
79 driver
= loader_strdup(driver_map
[i
].driver
);
80 _gbm_log("pci id for %d: %04x:%04x, driver %s",
81 fd
, vendor_id
, chip_id
, driver
);
85 for (j
= 0; j
< driver_map
[i
].num_chips_ids
; j
++)
86 if (driver_map
[i
].chip_ids
[j
] == chip_id
) {
87 driver
= loader_strdup(driver_map
[i
].driver
);
88 _gbm_log("pci id for %d: %04x:%04x, driver %s",
89 fd
, vendor_id
, chip_id
, driver
);
95 udev_device_unref(device
);
102 find_pipe_module(struct pipe_module
*pmod
, const char *name
)
104 char *search_paths
, *end
, *next
, *p
;
109 if (geteuid() == getuid()) {
110 /* don't allow setuid apps to use GBM_BACKENDS_PATH */
111 search_paths
= getenv("GBM_BACKENDS_PATH");
113 if (search_paths
== NULL
)
114 search_paths
= GBM_BACKEND_SEARCH_DIR
;
116 end
= search_paths
+ strlen(search_paths
);
117 for (p
= search_paths
; p
< end
&& pmod
->lib
== NULL
; p
= next
+ 1) {
119 next
= strchr(p
, ':');
126 ret
= util_snprintf(path
, sizeof(path
),
127 "%.*s/" PIPE_PREFIX
"%s" UTIL_DL_EXT
, len
, p
, pmod
->name
);
130 ret
= util_snprintf(path
, sizeof(path
),
131 PIPE_PREFIX
"%s" UTIL_DL_EXT
, pmod
->name
);
133 if (ret
> 0 && ret
< sizeof(path
)) {
134 pmod
->lib
= util_dl_open(path
);
135 debug_printf("loaded %s\n", path
);
142 load_pipe_module(struct pipe_module
*pmod
, const char *name
)
144 pmod
->name
= loader_strdup(name
);
148 find_pipe_module(pmod
, name
);
151 pmod
->drmdd
= (const struct drm_driver_descriptor
*)
152 util_dl_get_proc_address(pmod
->lib
, "driver_descriptor");
154 /* sanity check on the name */
155 if (pmod
->drmdd
&& strcmp(pmod
->drmdd
->name
, pmod
->name
) != 0)
159 util_dl_close(pmod
->lib
);
164 return (pmod
->drmdd
!= NULL
);
168 get_pipe_module(const char *name
)
170 struct pipe_module
*pmod
= NULL
;
176 for (i
= 0; i
< Elements(pipe_modules
); i
++) {
177 if (!pipe_modules
[i
].initialized
||
178 strcmp(pipe_modules
[i
].name
, name
) == 0) {
179 pmod
= &pipe_modules
[i
];
186 if (!pmod
->initialized
) {
187 load_pipe_module(pmod
, name
);
188 pmod
->initialized
= TRUE
;