drivers/gpu/drm/rockchip/rockchip_drm_gem.h

   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         unsigned long dma_attrs;
  27 };
  28
  29 struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj);
  30 struct drm_gem_object *
  31 rockchip_gem_prime_import_sg_table(struct drm_device *dev, size_t size,
  32                                    struct sg_table *sgt);
  33 void *rockchip_gem_prime_vmap(struct drm_gem_object *obj);
  34 void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
  35
  36 /* drm driver mmap file operations */
  37 int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma);
  38
  39 /* mmap a gem object to userspace. */
  40 int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
  41                           struct vm_area_struct *vma);
  42
  43 struct rockchip_gem_object *
  44         rockchip_gem_create_object(struct drm_device *drm, unsigned int size,
  45                                    bool alloc_kmap);
  46
  47 void rockchip_gem_free_object(struct drm_gem_object *obj);
  48
  49 int rockchip_gem_dumb_create(struct drm_file *file_priv,
  50                              struct drm_device *dev,
  51                              struct drm_mode_create_dumb *args);
  52 int rockchip_gem_dumb_map_offset(struct drm_file *file_priv,
  53                                  struct drm_device *dev, uint32_t handle,
  54                                  uint64_t *offset);
  55 #endif /* _ROCKCHIP_DRM_GEM_H */