1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (c) 2015 MediaTek Inc. 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef _MTK_DRM_GEM_H_ 7*4882a593Smuzhiyun #define _MTK_DRM_GEM_H_ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <drm/drm_gem.h> 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun /* 12*4882a593Smuzhiyun * mtk drm buffer structure. 13*4882a593Smuzhiyun * 14*4882a593Smuzhiyun * @base: a gem object. 15*4882a593Smuzhiyun * - a new handle to this gem object would be created 16*4882a593Smuzhiyun * by drm_gem_handle_create(). 17*4882a593Smuzhiyun * @cookie: the return value of dma_alloc_attrs(), keep it for dma_free_attrs() 18*4882a593Smuzhiyun * @kvaddr: kernel virtual address of gem buffer. 19*4882a593Smuzhiyun * @dma_addr: dma address of gem buffer. 20*4882a593Smuzhiyun * @dma_attrs: dma attributes of gem buffer. 21*4882a593Smuzhiyun * 22*4882a593Smuzhiyun * P.S. this object would be transferred to user as kms_bo.handle so 23*4882a593Smuzhiyun * user can access the buffer through kms_bo.handle. 24*4882a593Smuzhiyun */ 25*4882a593Smuzhiyun struct mtk_drm_gem_obj { 26*4882a593Smuzhiyun struct drm_gem_object base; 27*4882a593Smuzhiyun void *cookie; 28*4882a593Smuzhiyun void *kvaddr; 29*4882a593Smuzhiyun dma_addr_t dma_addr; 30*4882a593Smuzhiyun unsigned long dma_attrs; 31*4882a593Smuzhiyun struct sg_table *sg; 32*4882a593Smuzhiyun struct page **pages; 33*4882a593Smuzhiyun }; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #define to_mtk_gem_obj(x) container_of(x, struct mtk_drm_gem_obj, base) 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun void mtk_drm_gem_free_object(struct drm_gem_object *gem); 38*4882a593Smuzhiyun struct mtk_drm_gem_obj *mtk_drm_gem_create(struct drm_device *dev, size_t size, 39*4882a593Smuzhiyun bool alloc_kmap); 40*4882a593Smuzhiyun int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev, 41*4882a593Smuzhiyun struct drm_mode_create_dumb *args); 42*4882a593Smuzhiyun int mtk_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); 43*4882a593Smuzhiyun int mtk_drm_gem_mmap_buf(struct drm_gem_object *obj, 44*4882a593Smuzhiyun struct vm_area_struct *vma); 45*4882a593Smuzhiyun struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj); 46*4882a593Smuzhiyun struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev, 47*4882a593Smuzhiyun struct dma_buf_attachment *attach, struct sg_table *sg); 48*4882a593Smuzhiyun void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj); 49*4882a593Smuzhiyun void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun #endif 52