/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2015 MediaTek Inc. */ #ifndef _MTK_DRM_GEM_H_ #define _MTK_DRM_GEM_H_ #include <drm/drm_gem.h> /* * mtk drm buffer structure. * * @base: a gem object. * - a new handle to this gem object would be created * by drm_gem_handle_create(). * @cookie: the return value of dma_alloc_attrs(), keep it for dma_free_attrs() * @kvaddr: kernel virtual address of gem buffer. * @dma_addr: dma address of gem buffer. * @dma_attrs: dma attributes of gem buffer. * * P.S. this object would be transferred to user as kms_bo.handle so * user can access the buffer through kms_bo.handle. */ struct mtk_drm_gem_obj { struct drm_gem_object base; void *cookie; void *kvaddr; dma_addr_t dma_addr; unsigned long dma_attrs; struct sg_table *sg; struct page **pages; }; #define to_mtk_gem_obj(x) container_of(x, struct mtk_drm_gem_obj, base) void mtk_drm_gem_free_object(struct drm_gem_object *gem); struct mtk_drm_gem_obj *mtk_drm_gem_create(struct drm_device *dev, size_t size, bool alloc_kmap); int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args); int mtk_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); int mtk_drm_gem_mmap_buf(struct drm_gem_object *obj, struct vm_area_struct *vma); struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj); struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sg); void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj); void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); #endif