drivers/gpu/drm/tegra/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
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #ifndef __HOST1X_GEM_H
  12 #define __HOST1X_GEM_H
  13
  14 #include <linux/host1x.h>
  15
  16 #include <drm/drm.h>
  17 #include <drm/drmP.h>
  18
  19 #define TEGRA_BO_TILED     (1 << 0)
  20 #define TEGRA_BO_BOTTOM_UP (1 << 1)
  21
  22 struct tegra_bo {
  23         struct drm_gem_object gem;
  24         struct host1x_bo base;
  25         unsigned long flags;
  26         struct sg_table *sgt;
  27         dma_addr_t paddr;
  28         void *vaddr;
  29 };
  30
  31 static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)
  32 {
  33         return container_of(gem, struct tegra_bo, gem);
  34 }
  35
  36 struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size,
  37                                  unsigned long flags);
  38 struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,
  39                                              struct drm_device *drm,
  40                                              unsigned int size,
  41                                              unsigned long flags,
  42                                              unsigned int *handle);
  43 void tegra_bo_free_object(struct drm_gem_object *gem);
  44 int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
  45                          struct drm_mode_create_dumb *args);
  46 int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
  47                              uint32_t handle, uint64_t *offset);
  48
  49 int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);
  50
  51 extern const struct vm_operations_struct tegra_bo_vm_ops;
  52
  53 struct dma_buf *tegra_gem_prime_export(struct drm_device *drm,
  54                                        struct drm_gem_object *gem,
  55                                        int flags);
  56 struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm,
  57                                               struct dma_buf *buf);
  58
  59 #endif