diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_dmem.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_dmem.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_dmem.h b/drivers/gpu/drm/nouveau/nouveau_dmem.h new file mode 100644 index 000000000..64da5d363 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_dmem.h @@ -0,0 +1,50 @@ +/* + * Copyright 2018 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef __NOUVEAU_DMEM_H__ +#define __NOUVEAU_DMEM_H__ +#include <nvif/os.h> +struct drm_device; +struct drm_file; +struct nouveau_drm; +struct nouveau_svmm; +struct hmm_range; + +#if IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM) +void nouveau_dmem_init(struct nouveau_drm *); +void nouveau_dmem_fini(struct nouveau_drm *); +void nouveau_dmem_suspend(struct nouveau_drm *); +void nouveau_dmem_resume(struct nouveau_drm *); + +int nouveau_dmem_migrate_vma(struct nouveau_drm *drm, + struct nouveau_svmm *svmm, + struct vm_area_struct *vma, + unsigned long start, + unsigned long end); +unsigned long nouveau_dmem_page_addr(struct page *page); + +#else /* IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM) */ +static inline void nouveau_dmem_init(struct nouveau_drm *drm) {} +static inline void nouveau_dmem_fini(struct nouveau_drm *drm) {} +static inline void nouveau_dmem_suspend(struct nouveau_drm *drm) {} +static inline void nouveau_dmem_resume(struct nouveau_drm *drm) {} +#endif /* IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM) */ +#endif |