1 /*
2 * Copyright 2018 Red Hat Inc.
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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22 #ifndef __NOUVEAU_DMEM_H__
23 #define __NOUVEAU_DMEM_H__
24 #include <nvif/os.h>
25 struct drm_device;
26 struct drm_file;
27 struct nouveau_drm;
28 struct hmm_range;
29
30 #if IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM)
31 void nouveau_dmem_init(struct nouveau_drm *);
32 void nouveau_dmem_fini(struct nouveau_drm *);
33 void nouveau_dmem_suspend(struct nouveau_drm *);
34 void nouveau_dmem_resume(struct nouveau_drm *);
35
36 int nouveau_dmem_migrate_vma(struct nouveau_drm *drm,
37 struct vm_area_struct *vma,
38 unsigned long start,
39 unsigned long end);
40
41 void nouveau_dmem_convert_pfn(struct nouveau_drm *drm,
42 struct hmm_range *range);
43 #else /* IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM) */
44 static inline void nouveau_dmem_init(struct nouveau_drm *drm) {}
45 static inline void nouveau_dmem_fini(struct nouveau_drm *drm) {}
46 static inline void nouveau_dmem_suspend(struct nouveau_drm *drm) {}
47 static inline void nouveau_dmem_resume(struct nouveau_drm *drm) {}
48 #endif /* IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM) */
49 #endif