add driver 5G

hc

2024-01-31 f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2

 kernel/include/drm/drm_prime.h
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@@ -42,7 +42,6 @@
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  * This just contains the internal &struct dma_buf and handle caches for each
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  * &struct drm_file used by the PRIME core code.
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  */
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-
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 struct drm_prime_file_private {
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 /* private: */
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 	struct mutex lock;
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@@ -62,27 +61,18 @@
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 struct drm_gem_object;
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 struct drm_file;
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-struct device;
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-
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-struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
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-				     struct drm_gem_object *obj,
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-				     int flags);
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-int drm_gem_prime_handle_to_fd(struct drm_device *dev,
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-			       struct drm_file *file_priv, uint32_t handle, uint32_t flags,
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-			       int *prime_fd);
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-int drm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
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-struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
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-					    struct dma_buf *dma_buf);
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-
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-struct drm_gem_object *drm_gem_prime_import_dev(struct drm_device *dev,
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-						struct dma_buf *dma_buf,
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-						struct device *attach_dev);
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-
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-int drm_gem_prime_fd_to_handle(struct drm_device *dev,
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-			       struct drm_file *file_priv, int prime_fd, uint32_t *handle);
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+/* core prime functions */
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 struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
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 				      struct dma_buf_export_info *exp_info);
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 void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
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+
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+int drm_gem_prime_fd_to_handle(struct drm_device *dev,
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+			       struct drm_file *file_priv, int prime_fd, uint32_t *handle);
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+int drm_gem_prime_handle_to_fd(struct drm_device *dev,
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+			       struct drm_file *file_priv, uint32_t handle, uint32_t flags,
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+			       int *prime_fd);
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+
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+/* helper functions for exporting */
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 int drm_gem_map_attach(struct dma_buf *dma_buf,
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 		       struct dma_buf_attachment *attach);
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 void drm_gem_map_detach(struct dma_buf *dma_buf,
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@@ -94,15 +84,28 @@
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 			   enum dma_data_direction dir);
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 void *drm_gem_dmabuf_vmap(struct dma_buf *dma_buf);
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 void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr);
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-void *drm_gem_dmabuf_kmap(struct dma_buf *dma_buf, unsigned long page_num);
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-void drm_gem_dmabuf_kunmap(struct dma_buf *dma_buf, unsigned long page_num,
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-			   void *addr);
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+
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+int drm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
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 int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma);
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+
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+struct sg_table *drm_prime_pages_to_sg(struct drm_device *dev,
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+				       struct page **pages, unsigned int nr_pages);
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+struct dma_buf *drm_gem_prime_export(struct drm_gem_object *obj,
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+				     int flags);
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+
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+unsigned long drm_prime_get_contiguous_size(struct sg_table *sgt);
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+
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+/* helper functions for importing */
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+struct drm_gem_object *drm_gem_prime_import_dev(struct drm_device *dev,
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+						struct dma_buf *dma_buf,
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+						struct device *attach_dev);
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+struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
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+					    struct dma_buf *dma_buf);
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+
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+void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
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 int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
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 				     dma_addr_t *addrs, int max_pages);
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-struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages);
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-void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
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 int drm_gem_dmabuf_get_uuid(struct dma_buf *dma_buf, uuid_t *uuid);
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