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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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_BOTTOM_UP (1 << 0)
20
21enum tegra_bo_tiling_mode {
22 TEGRA_BO_TILING_MODE_PITCH,
23 TEGRA_BO_TILING_MODE_TILED,
24 TEGRA_BO_TILING_MODE_BLOCK,
25};
26
27struct tegra_bo_tiling {
28 enum tegra_bo_tiling_mode mode;
29 unsigned long value;
30};
31
32struct tegra_bo {
33 struct drm_gem_object gem;
34 struct host1x_bo base;
35 unsigned long flags;
36 struct sg_table *sgt;
37 dma_addr_t paddr;
38 void *vaddr;
39
40 struct tegra_bo_tiling tiling;
41};
42
43static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)
44{
45 return container_of(gem, struct tegra_bo, gem);
46}
47
48struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size,
49 unsigned long flags);
50struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,
51 struct drm_device *drm,
52 unsigned int size,
53 unsigned long flags,
54 unsigned int *handle);
55void tegra_bo_free_object(struct drm_gem_object *gem);
56int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
57 struct drm_mode_create_dumb *args);
58int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
59 uint32_t handle, uint64_t *offset);
60
61int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);
62
63extern const struct vm_operations_struct tegra_bo_vm_ops;
64
65struct dma_buf *tegra_gem_prime_export(struct drm_device *drm,
66 struct drm_gem_object *gem,
67 int flags);
68struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm,
69 struct dma_buf *buf);
70
71#endif