1/*
2 * Copyright (c) Fuzhou Rockchip Electronics Co.Ltd
3 * Authors:
4 *       Mark Yao <yzq@rock-chips.com>
5 *
6 * based on exynos_drm.h
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 * SOFTWARE.
26 *
27 */
28
29#ifndef _ROCKCHIP_DRM_H_
30#define _ROCKCHIP_DRM_H_
31
32#include <stdint.h>
33#include "drm.h"
34
35/**
36 * User-desired buffer creation information structure.
37 *
38 * @size: user-desired memory allocation size.
39 *	- this size value would be page-aligned internally.
40 * @flags: user request for setting memory type or cache attributes.
41 * @handle: returned a handle to created gem object.
42 *	- this handle will be set by gem module of kernel side.
43 */
44struct drm_rockchip_gem_create {
45	uint64_t size;
46	uint32_t flags;
47	uint32_t handle;
48};
49
50/**
51 * A structure for getting buffer offset.
52 *
53 * @handle: a pointer to gem object created.
54 * @pad: just padding to be 64-bit aligned.
55 * @offset: relatived offset value of the memory region allocated.
56 *	- this value should be set by user.
57 */
58struct drm_rockchip_gem_map_off {
59	uint32_t handle;
60	uint32_t pad;
61	uint64_t offset;
62};
63
64#define DRM_ROCKCHIP_GEM_CREATE	0x00
65#define DRM_ROCKCHIP_GEM_MAP_OFFSET	0x01
66
67#define DRM_IOCTL_ROCKCHIP_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \
68		DRM_ROCKCHIP_GEM_CREATE, struct drm_rockchip_gem_create)
69
70#define DRM_IOCTL_ROCKCHIP_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \
71		DRM_ROCKCHIP_GEM_MAP_OFFSET, struct drm_rockchip_gem_map_off)
72
73#endif
74