Home | History | Annotate | Line # | Download | only in nouveau 
      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) */
     46 static inline void nouveau_dmem_init(struct nouveau_drm *drm) {}
     47 static inline void nouveau_dmem_fini(struct nouveau_drm *drm) {}
     48 static inline void nouveau_dmem_suspend(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