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

   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
  20struct 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
  37struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj);
  38struct drm_gem_object *
  39rockchip_gem_prime_import_sg_table(struct drm_device *dev,
  40                                   struct dma_buf_attachment *attach,
  41                                   struct sg_table *sg);
  42void *rockchip_gem_prime_vmap(struct drm_gem_object *obj);
  43void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
  44
  45/* drm driver mmap file operations */
  46int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma);
  47
  48/* mmap a gem object to userspace. */
  49int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
  50                          struct vm_area_struct *vma);
  51
  52struct rockchip_gem_object *
  53        rockchip_gem_create_object(struct drm_device *drm, unsigned int size,
  54                                   bool alloc_kmap);
  55
  56void rockchip_gem_free_object(struct drm_gem_object *obj);
  57
  58int 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