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
22struct 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
31static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)
32{
33	return container_of(gem, struct tegra_bo, gem);
34}
35
36struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size,
37				 unsigned long flags);
38struct 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);
43void tegra_bo_free_object(struct drm_gem_object *gem);
44int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
45			 struct drm_mode_create_dumb *args);
46int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
47			     uint32_t handle, uint64_t *offset);
48
49int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);
50
51extern const struct vm_operations_struct tegra_bo_vm_ops;
52
53struct dma_buf *tegra_gem_prime_export(struct drm_device *drm,
54				       struct drm_gem_object *gem,
55				       int flags);
56struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm,
57					      struct dma_buf *buf);
58
59#endif