1 /*
2 * Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved.
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 shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 */
22
23 #include "nvidia-drm.h"
24
25 #if defined(NV_DRM_AVAILABLE)
26
27 #include "nvidia-drm-priv.h"
28 #include "nvidia-drm-drv.h"
29
30 static struct NvKmsKapiFunctionsTable nvKmsFuncsTable = {
31 .versionString = NV_VERSION_STRING,
32 };
33
34 const struct NvKmsKapiFunctionsTable* const nvKms = &nvKmsFuncsTable;
35
36 #endif
37
nv_drm_init(void)38 int nv_drm_init(void)
39 {
40 #if defined(NV_DRM_AVAILABLE)
41 if (!nvKmsKapiGetFunctionsTable(&nvKmsFuncsTable)) {
42 NV_DRM_LOG_ERR(
43 "Version mismatch: nvidia-modeset.ko(%s) nvidia-drm.ko(%s)",
44 nvKmsFuncsTable.versionString, NV_VERSION_STRING);
45 return -EINVAL;
46 }
47
48 nvKms->setSuspendResumeCallback(nv_drm_suspend_resume);
49 return nv_drm_probe_devices();
50 #else
51 return 0;
52 #endif
53 }
54
nv_drm_exit(void)55 void nv_drm_exit(void)
56 {
57 #if defined(NV_DRM_AVAILABLE)
58 nvKms->setSuspendResumeCallback(NULL);
59 nv_drm_remove_devices();
60 #endif
61 }
62