1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2018 Red Hat Inc.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Permission is hereby granted, free of charge, to any person obtaining a
5*4882a593Smuzhiyun * copy of this software and associated documentation files (the "Software"),
6*4882a593Smuzhiyun * to deal in the Software without restriction, including without limitation
7*4882a593Smuzhiyun * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*4882a593Smuzhiyun * and/or sell copies of the Software, and to permit persons to whom the
9*4882a593Smuzhiyun * Software is furnished to do so, subject to the following conditions:
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * The above copyright notice and this permission notice shall be included in
12*4882a593Smuzhiyun * all copies or substantial portions of the Software.
13*4882a593Smuzhiyun *
14*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15*4882a593Smuzhiyun * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16*4882a593Smuzhiyun * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17*4882a593Smuzhiyun * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18*4882a593Smuzhiyun * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19*4882a593Smuzhiyun * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20*4882a593Smuzhiyun * OTHER DEALINGS IN THE SOFTWARE.
21*4882a593Smuzhiyun */
22*4882a593Smuzhiyun #ifndef __NOUVEAU_DMEM_H__
23*4882a593Smuzhiyun #define __NOUVEAU_DMEM_H__
24*4882a593Smuzhiyun #include <nvif/os.h>
25*4882a593Smuzhiyun struct drm_device;
26*4882a593Smuzhiyun struct drm_file;
27*4882a593Smuzhiyun struct nouveau_drm;
28*4882a593Smuzhiyun struct nouveau_svmm;
29*4882a593Smuzhiyun struct hmm_range;
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM)
32*4882a593Smuzhiyun void nouveau_dmem_init(struct nouveau_drm *);
33*4882a593Smuzhiyun void nouveau_dmem_fini(struct nouveau_drm *);
34*4882a593Smuzhiyun void nouveau_dmem_suspend(struct nouveau_drm *);
35*4882a593Smuzhiyun void nouveau_dmem_resume(struct nouveau_drm *);
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun int nouveau_dmem_migrate_vma(struct nouveau_drm *drm,
38*4882a593Smuzhiyun struct nouveau_svmm *svmm,
39*4882a593Smuzhiyun struct vm_area_struct *vma,
40*4882a593Smuzhiyun unsigned long start,
41*4882a593Smuzhiyun unsigned long end);
42*4882a593Smuzhiyun unsigned long nouveau_dmem_page_addr(struct page *page);
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun #else /* IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM) */
nouveau_dmem_init(struct nouveau_drm * drm)45*4882a593Smuzhiyun static inline void nouveau_dmem_init(struct nouveau_drm *drm) {}
nouveau_dmem_fini(struct nouveau_drm * drm)46*4882a593Smuzhiyun static inline void nouveau_dmem_fini(struct nouveau_drm *drm) {}
nouveau_dmem_suspend(struct nouveau_drm * drm)47*4882a593Smuzhiyun static inline void nouveau_dmem_suspend(struct nouveau_drm *drm) {}
nouveau_dmem_resume(struct nouveau_drm * drm)48*4882a593Smuzhiyun static inline void nouveau_dmem_resume(struct nouveau_drm *drm) {}
49*4882a593Smuzhiyun #endif /* IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM) */
50*4882a593Smuzhiyun #endif
51