1 /* $NetBSD: nouveau_dmem.h,v 1.2 2021/12/18 23:45:32 riastradh Exp $ */
2
3 /*
4 * Copyright 2018 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24 #ifndef __NOUVEAU_DMEM_H__
25 #define __NOUVEAU_DMEM_H__
26 #include <nvif/os.h>
27 struct drm_device;
28 struct drm_file;
29 struct nouveau_drm;
30 struct hmm_range;
31
32 #if IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM)
33 void nouveau_dmem_init(struct nouveau_drm *);
34 void nouveau_dmem_fini(struct nouveau_drm *);
35 void nouveau_dmem_suspend(struct nouveau_drm *);
36 void nouveau_dmem_resume(struct nouveau_drm *);
37
38 int nouveau_dmem_migrate_vma(struct nouveau_drm *drm,
39 struct vm_area_struct *vma,
40 unsigned long start,
41 unsigned long end);
42
43 void nouveau_dmem_convert_pfn(struct nouveau_drm *drm,
44 struct hmm_range *range);
45 #else /* IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM) */
nouveau_dmem_init(struct nouveau_drm * drm)46 static inline void nouveau_dmem_init(struct nouveau_drm *drm) {}
nouveau_dmem_fini(struct nouveau_drm * drm)47 static inline void nouveau_dmem_fini(struct nouveau_drm *drm) {}
nouveau_dmem_suspend(struct nouveau_drm * drm)48 static inline void nouveau_dmem_suspend(struct nouveau_drm *drm) {}
nouveau_dmem_resume(struct nouveau_drm * drm)49 static inline void nouveau_dmem_resume(struct nouveau_drm *drm) {}
50 #endif /* IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM) */
51 #endif
52