1 /* 2 * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd 3 * Author:Mark Yao <mark.yao@rock-chips.com> 4 * 5 * This software is licensed under the terms of the GNU General Public 6 * License version 2, as published by the Free Software Foundation, and 7 * may be copied, distributed, and modified under those terms. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 */ 14 15 #ifndef _ROCKCHIP_DRM_GEM_H 16 #define _ROCKCHIP_DRM_GEM_H 17 18 #define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base) 19 20 struct rockchip_gem_object { 21 struct drm_gem_object base; 22 unsigned int flags; 23 24 void *kvaddr; 25 dma_addr_t dma_addr; 26 /* Used when IOMMU is disabled */ 27 unsigned long dma_attrs; 28 29 /* Used when IOMMU is enabled */ 30 struct drm_mm_node mm; 31 unsigned long num_pages; 32 struct page **pages; 33 struct sg_table *sgt; 34 size_t size; 35 }; 36 37 struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj); 38 struct drm_gem_object * 39 rockchip_gem_prime_import_sg_table(struct drm_device *dev, 40 struct dma_buf_attachment *attach, 41 struct sg_table *sg); 42 void *rockchip_gem_prime_vmap(struct drm_gem_object *obj); 43 void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); 44 45 /* drm driver mmap file operations */ 46 int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma); 47 48 /* mmap a gem object to userspace. */ 49 int rockchip_gem_mmap_buf(struct drm_gem_object *obj, 50 struct vm_area_struct *vma); 51 52 struct rockchip_gem_object * 53 rockchip_gem_create_object(struct drm_device *drm, unsigned int size, 54 bool alloc_kmap); 55 56 void rockchip_gem_free_object(struct drm_gem_object *obj); 57 58 int rockchip_gem_dumb_create(struct drm_file *file_priv, 59 struct drm_device *dev, 60 struct drm_mode_create_dumb *args); 61 #endif /* _ROCKCHIP_DRM_GEM_H */ 62