LXR linux/drivers/gpu/drm/rockchip/rockchip_drm

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
   4 * Author:Mark Yao <mark.yao@rock-chips.com>
   5 */
   6
   7#ifndef _ROCKCHIP_DRM_GEM_H
   8#define _ROCKCHIP_DRM_GEM_H
   9
  10#define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base)
  11
  12struct rockchip_gem_object {
  13        struct drm_gem_object base;
  14        unsigned int flags;
  15
  16        void *kvaddr;
  17        dma_addr_t dma_addr;
  18        /* Used when IOMMU is disabled */
  19        unsigned long dma_attrs;
  20
  21        /* Used when IOMMU is enabled */
  22        struct drm_mm_node mm;
  23        unsigned long num_pages;
  24        struct page **pages;
  25        struct sg_table *sgt;
  26        size_t size;
  27};
  28
  29struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj);
  30struct drm_gem_object *
  31rockchip_gem_prime_import_sg_table(struct drm_device *dev,
  32                                   struct dma_buf_attachment *attach,
  33                                   struct sg_table *sg);
  34int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
  35void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
  36
  37/* drm driver mmap file operations */
  38int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma);
  39
  40/* mmap a gem object to userspace. */
  41int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
  42                          struct vm_area_struct *vma);
  43
  44struct rockchip_gem_object *
  45        rockchip_gem_create_object(struct drm_device *drm, unsigned int size,
  46                                   bool alloc_kmap);
  47
  48void rockchip_gem_free_object(struct drm_gem_object *obj);
  49
  50int rockchip_gem_dumb_create(struct drm_file *file_priv,
  51                             struct drm_device *dev,
  52                             struct drm_mode_create_dumb *args);
  53#endif /* _ROCKCHIP_DRM_GEM_H */
  54