LXR linux/drivers/gpu/host1x/drm/gem.h

   1/*
   2 * Tegra host1x GEM implementation
   3 *
   4 * Copyright (c) 2012-2013, NVIDIA Corporation.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope it will be useful, but WITHOUT
  11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 * more details.
  14 *
  15 * You should have received a copy of the GNU General Public License
  16 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19#ifndef __HOST1X_GEM_H
  20#define __HOST1X_GEM_H
  21
  22#include <drm/drm.h>
  23#include <drm/drmP.h>
  24
  25#include "host1x_bo.h"
  26
  27struct tegra_bo {
  28        struct drm_gem_object gem;
  29        struct host1x_bo base;
  30        dma_addr_t paddr;
  31        void *vaddr;
  32};
  33
  34static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)
  35{
  36        return container_of(gem, struct tegra_bo, gem);
  37}
  38
  39extern const struct host1x_bo_ops tegra_bo_ops;
  40
  41struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size);
  42struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,
  43                                            struct drm_device *drm,
  44                                            unsigned int size,
  45                                            unsigned int *handle);
  46void tegra_bo_free_object(struct drm_gem_object *gem);
  47unsigned int tegra_bo_get_mmap_offset(struct tegra_bo *bo);
  48int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
  49                         struct drm_mode_create_dumb *args);
  50int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
  51                             uint32_t handle, uint64_t *offset);
  52int tegra_bo_dumb_destroy(struct drm_file *file, struct drm_device *drm,
  53                          unsigned int handle);
  54
  55int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);
  56
  57extern const struct vm_operations_struct tegra_bo_vm_ops;
  58
  59#endif
  60