drm/rockchip/rockchip_drm_gem.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
0004  * Author:Mark Yao <mark.yao@rock-chips.com>
0005  */
0006
0007 #ifndef _ROCKCHIP_DRM_GEM_H
0008 #define _ROCKCHIP_DRM_GEM_H
0009
0010 #define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base)
0011
0012 struct rockchip_gem_object {
0013     struct drm_gem_object base;
0014     unsigned int flags;
0015
0016     void *kvaddr;
0017     dma_addr_t dma_addr;
0018     /* Used when IOMMU is disabled */
0019     unsigned long dma_attrs;
0020
0021     /* Used when IOMMU is enabled */
0022     struct drm_mm_node mm;
0023     unsigned long num_pages;
0024     struct page **pages;
0025     struct sg_table *sgt;
0026     size_t size;
0027 };
0028
0029 struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj);
0030 struct drm_gem_object *
0031 rockchip_gem_prime_import_sg_table(struct drm_device *dev,
0032                    struct dma_buf_attachment *attach,
0033                    struct sg_table *sg);
0034 int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
0035 void rockchip_gem_prime_vunmap(struct drm_gem_object *obj,
0036                    struct iosys_map *map);
0037
0038 struct rockchip_gem_object *
0039     rockchip_gem_create_object(struct drm_device *drm, unsigned int size,
0040                    bool alloc_kmap);
0041
0042 void rockchip_gem_free_object(struct drm_gem_object *obj);
0043
0044 int rockchip_gem_dumb_create(struct drm_file *file_priv,
0045                  struct drm_device *dev,
0046                  struct drm_mode_create_dumb *args);
0047 #endif /* _ROCKCHIP_DRM_GEM_H */