1 /* exynos_drm.h
2  *
3  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4  * Authors:
5  *	Inki Dae <inki.dae@samsung.com>
6  *	Joonyoung Shim <jy0922.shim@samsung.com>
7  *	Seung-Woo Kim <sw0312.kim@samsung.com>
8  *
9  * Permission is hereby granted, free of charge, to any person obtaining a
10  * copy of this software and associated documentation files (the "Software"),
11  * to deal in the Software without restriction, including without limitation
12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13  * and/or sell copies of the Software, and to permit persons to whom the
14  * Software is furnished to do so, subject to the following conditions:
15  *
16  * The above copyright notice and this permission notice (including the next
17  * paragraph) shall be included in all copies or substantial portions of the
18  * Software.
19  *
20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
23  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26  * OTHER DEALINGS IN THE SOFTWARE.
27  */
28 
29 #ifndef _EXYNOS_DRM_H_
30 #define _EXYNOS_DRM_H_
31 
32 #include "drm.h"
33 
34 /**
35  * User-desired buffer creation information structure.
36  *
37  * @size: user-desired memory allocation size.
38  *	- this size value would be page-aligned internally.
39  * @flags: user request for setting memory type or cache attributes.
40  * @handle: returned a handle to created gem object.
41  *	- this handle will be set by gem module of kernel side.
42  */
43 struct drm_exynos_gem_create {
44 	uint64_t size;
45 	unsigned int flags;
46 	unsigned int handle;
47 };
48 
49 /**
50  * A structure to gem information.
51  *
52  * @handle: a handle to gem object created.
53  * @flags: flag value including memory type and cache attribute and
54  *	this value would be set by driver.
55  * @size: size to memory region allocated by gem and this size would
56  *	be set by driver.
57  */
58 struct drm_exynos_gem_info {
59 	unsigned int handle;
60 	unsigned int flags;
61 	uint64_t size;
62 };
63 
64 /**
65  * A structure for user connection request of virtual display.
66  *
67  * @connection: indicate whether doing connetion or not by user.
68  * @extensions: if this value is 1 then the vidi driver would need additional
69  *	128bytes edid data.
70  * @edid: the edid data pointer from user side.
71  */
72 struct drm_exynos_vidi_connection {
73 	unsigned int connection;
74 	unsigned int extensions;
75 	uint64_t edid;
76 };
77 
78 /* memory type definitions. */
79 enum e_drm_exynos_gem_mem_type {
80 	/* Physically Continuous memory and used as default. */
81 	EXYNOS_BO_CONTIG	= 0 << 0,
82 	/* Physically Non-Continuous memory. */
83 	EXYNOS_BO_NONCONTIG	= 1 << 0,
84 	/* non-cachable mapping and used as default. */
85 	EXYNOS_BO_NONCACHABLE	= 0 << 1,
86 	/* cachable mapping. */
87 	EXYNOS_BO_CACHABLE	= 1 << 1,
88 	/* write-combine mapping. */
89 	EXYNOS_BO_WC		= 1 << 2,
90 	EXYNOS_BO_MASK		= EXYNOS_BO_NONCONTIG | EXYNOS_BO_CACHABLE |
91 					EXYNOS_BO_WC
92 };
93 
94 struct drm_exynos_g2d_get_ver {
95 	__u32	major;
96 	__u32	minor;
97 };
98 
99 struct drm_exynos_g2d_cmd {
100 	__u32	offset;
101 	__u32	data;
102 };
103 
104 enum drm_exynos_g2d_buf_type {
105 	G2D_BUF_USERPTR = 1 << 31,
106 };
107 
108 enum drm_exynos_g2d_event_type {
109 	G2D_EVENT_NOT,
110 	G2D_EVENT_NONSTOP,
111 	G2D_EVENT_STOP,		/* not yet */
112 };
113 
114 struct drm_exynos_g2d_userptr {
115 	unsigned long userptr;
116 	unsigned long size;
117 };
118 
119 struct drm_exynos_g2d_set_cmdlist {
120 	__u64					cmd;
121 	__u64					cmd_buf;
122 	__u32					cmd_nr;
123 	__u32					cmd_buf_nr;
124 
125 	/* for g2d event */
126 	__u64					event_type;
127 	__u64					user_data;
128 };
129 
130 struct drm_exynos_g2d_exec {
131 	__u64					async;
132 };
133 
134 #define DRM_EXYNOS_GEM_CREATE		0x00
135 /* Reserved 0x04 ~ 0x05 for exynos specific gem ioctl */
136 #define DRM_EXYNOS_GEM_GET		0x04
137 #define DRM_EXYNOS_VIDI_CONNECTION	0x07
138 
139 /* G2D */
140 #define DRM_EXYNOS_G2D_GET_VER		0x20
141 #define DRM_EXYNOS_G2D_SET_CMDLIST	0x21
142 #define DRM_EXYNOS_G2D_EXEC		0x22
143 
144 #define DRM_IOCTL_EXYNOS_GEM_CREATE		DRM_IOWR(DRM_COMMAND_BASE + \
145 		DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
146 
147 #define DRM_IOCTL_EXYNOS_GEM_GET	DRM_IOWR(DRM_COMMAND_BASE + \
148 		DRM_EXYNOS_GEM_GET,	struct drm_exynos_gem_info)
149 
150 #define DRM_IOCTL_EXYNOS_VIDI_CONNECTION	DRM_IOWR(DRM_COMMAND_BASE + \
151 		DRM_EXYNOS_VIDI_CONNECTION, struct drm_exynos_vidi_connection)
152 
153 #define DRM_IOCTL_EXYNOS_G2D_GET_VER		DRM_IOWR(DRM_COMMAND_BASE + \
154 		DRM_EXYNOS_G2D_GET_VER, struct drm_exynos_g2d_get_ver)
155 #define DRM_IOCTL_EXYNOS_G2D_SET_CMDLIST	DRM_IOWR(DRM_COMMAND_BASE + \
156 		DRM_EXYNOS_G2D_SET_CMDLIST, struct drm_exynos_g2d_set_cmdlist)
157 #define DRM_IOCTL_EXYNOS_G2D_EXEC		DRM_IOWR(DRM_COMMAND_BASE + \
158 		DRM_EXYNOS_G2D_EXEC, struct drm_exynos_g2d_exec)
159 
160 /* EXYNOS specific events */
161 #define DRM_EXYNOS_G2D_EVENT		0x80000000
162 
163 struct drm_exynos_g2d_event {
164 	struct drm_event	base;
165 	__u64				user_data;
166 	__u32				tv_sec;
167 	__u32				tv_usec;
168 	__u32				cmdlist_no;
169 	__u32				reserved;
170 };
171 
172 #endif
173