loader_dri3: Handle mismatched depth 30 formats for Prime renderoffload.
[mesa.git] / src / loader / pci_id_driver_map.c
1 /*
2 * Copyright 2014 Ilia Mirkin
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 FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24 int is_nouveau_vieux(int fd);
25
26 #ifdef HAVE_LIBDRM
27
28 #include <stdlib.h>
29 #include <xf86drm.h>
30 #include <nouveau_drm.h>
31
32 static int
33 nouveau_chipset(int fd)
34 {
35 struct drm_nouveau_getparam gp = { NOUVEAU_GETPARAM_CHIPSET_ID, 0 };
36 int ret;
37
38 ret = drmCommandWriteRead(fd, DRM_NOUVEAU_GETPARAM, &gp, sizeof(gp));
39 if (ret)
40 return -1;
41
42 return gp.value;
43 }
44
45 int
46 is_nouveau_vieux(int fd)
47 {
48 int chipset = nouveau_chipset(fd);
49 return (chipset > 0 && chipset < 0x30) ||
50 (chipset < 0x40 && getenv("NOUVEAU_VIEUX") != NULL);
51 }
52
53 #else
54
55 int is_nouveau_vieux(int fd) { return 0; }
56
57 #endif