projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| c6bb9baa DV |
1 | /* |
| 2 | * Copyright © 2012 Red Hat | |
| 3 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. | |
| 4 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. | |
| 5 | * Copyright (c) 2009-2010, Code Aurora Forum. | |
| 6 | * | |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a | |
| 8 | * copy of this software and associated documentation files (the "Software"), | |
| 9 | * to deal in the Software without restriction, including without limitation | |
| 10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| 11 | * and/or sell copies of the Software, and to permit persons to whom the | |
| 12 | * Software is furnished to do so, subject to the following conditions: | |
| 13 | * | |
| 14 | * The above copyright notice and this permission notice (including the next | |
| 15 | * paragraph) shall be included in all copies or substantial portions of the | |
| 16 | * Software. | |
| 17 | * | |
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| 21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
| 23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
| 24 | * IN THE SOFTWARE. | |
| 25 | * | |
| 26 | * Authors: | |
| 27 | * Dave Airlie <airlied@redhat.com> | |
| 28 | * Rob Clark <rob.clark@linaro.org> | |
| 29 | * | |
| 30 | */ | |
| 31 | ||
| 32 | #ifndef __DRM_PRIME_H__ | |
| 33 | #define __DRM_PRIME_H__ | |
| 34 | ||
| 35 | #include <linux/mutex.h> | |
| 36 | #include <linux/rbtree.h> | |
| 37 | ||
| 38 | /** | |
| 39 | * struct drm_prime_file_private - per-file tracking for PRIME | |
| 40 | * | |
| 41 | * This just contains the internal &struct dma_buf and handle caches for each | |
| 42 | * &struct drm_file used by the PRIME core code. | |
| 43 | */ | |
| 44 | ||
| 45 | struct drm_prime_file_private { | |
| 46 | /* private: */ | |
| 47 | struct mutex lock; | |
| 48 | struct rb_root dmabufs; | |
| 49 | struct rb_root handles; | |
| 50 | }; | |
| 51 | ||
| 52 | struct dma_buf_export_info; | |
| 53 | struct dma_buf; | |
| 54 | ||
| 55 | struct drm_device; | |
| 56 | struct drm_gem_object; | |
| 57 | struct drm_file; | |
| 58 | ||
| 59 | extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev, | |
| 60 | struct drm_gem_object *obj, | |
| 61 | int flags); | |
| 62 | extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, | |
| 63 | struct drm_file *file_priv, uint32_t handle, uint32_t flags, | |
| 64 | int *prime_fd); | |
| 65 | extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, | |
| 66 | struct dma_buf *dma_buf); | |
| 67 | extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, | |
| 68 | struct drm_file *file_priv, int prime_fd, uint32_t *handle); | |
| 69 | struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev, | |
| 70 | struct dma_buf_export_info *exp_info); | |
| 71 | extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf); | |
| 72 | ||
| 73 | extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages, | |
| 74 | dma_addr_t *addrs, int max_pages); | |
| 75 | extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages); | |
| 76 | extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); | |
| 77 | ||
| 78 | ||
| 79 | #endif /* __DRM_PRIME_H__ */ |