Файловый менеджер

Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/include/drm/drm_prime.h

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/* * Copyright © 2012 Red Hat * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * Copyright (c) 2009-2010, Code Aurora Forum. * * 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 (including the next * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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. * * Authors: * Dave Airlie <airlied@redhat.com> * Rob Clark <rob.clark@linaro.org> * / #ifndef __DRM_PRIME_H__ #define __DRM_PRIME_H__ #include <linux/mutex.h> #include <linux/rbtree.h> #include <linux/scatterlist.h> /* * struct drm_prime_file_private - per-file tracking for PRIME * * This just contains the internal &struct dma_buf and handle caches for each * &struct drm_file used by the PRIME core code. / struct drm_prime_file_private { / private: / struct mutex lock; struct rb_root dmabufs; struct rb_root handles; }; struct device; struct dma_buf_export_info; struct dma_buf; struct dma_buf_attachment; enum dma_data_direction; struct drm_device; struct drm_gem_object; struct drm_file; struct device; / core prime functions / struct dma_buf drm_gem_dmabuf_export(struct drm_device dev, struct dma_buf_export_info exp_info); void drm_gem_dmabuf_release(struct dma_buf dma_buf); int drm_gem_prime_fd_to_handle(struct drm_device dev, struct drm_file file_priv, int prime_fd, uint32_t handle); int drm_gem_prime_handle_to_fd(struct drm_device dev, struct drm_file file_priv, uint32_t handle, uint32_t flags, int prime_fd); / helper functions for exporting / int drm_gem_map_attach(struct dma_buf dma_buf, struct dma_buf_attachment attach); void drm_gem_map_detach(struct dma_buf dma_buf, struct dma_buf_attachment attach); struct sg_table drm_gem_map_dma_buf(struct dma_buf_attachment attach, enum dma_data_direction dir); void drm_gem_unmap_dma_buf(struct dma_buf_attachment attach, struct sg_table sgt, enum dma_data_direction dir); void drm_gem_dmabuf_vmap(struct dma_buf dma_buf); void drm_gem_dmabuf_vunmap(struct dma_buf dma_buf, void vaddr); int drm_gem_prime_mmap(struct drm_gem_object obj, struct vm_area_struct vma); int drm_gem_dmabuf_mmap(struct dma_buf dma_buf, struct vm_area_struct vma); struct sg_table drm_prime_pages_to_sg(struct page *pages, unsigned int nr_pages); struct dma_buf drm_gem_prime_export(struct drm_gem_object obj, int flags); / helper functions for importing / struct drm_gem_object drm_gem_prime_import_dev(struct drm_device dev, struct dma_buf dma_buf, struct device attach_dev); struct drm_gem_object drm_gem_prime_import(struct drm_device dev, struct dma_buf dma_buf); void drm_prime_gem_destroy(struct drm_gem_object obj, struct sg_table sg); int drm_prime_sg_to_page_addr_arrays(struct sg_table sgt, struct page pages, dma_addr_t addrs, int max_pages); #endif /* __DRM_PRIME_H__ */

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