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1 /*
2  * Copyright 2013 Red Hat
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the next
13  * paragraph) shall be included in all copies or substantial portions of the
14  * Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  */
24 #ifndef QXL_DRM_H
25 #define QXL_DRM_H
26 
27 #include <stddef.h>
28 #include "drm/drm.h"
29 
30 /* Please note that modifications to all structs defined here are
31  * subject to backwards-compatibility constraints.
32  *
33  * Do not use pointers, use uint64_t instead for 32 bit / 64 bit user/kernel
34  * compatibility Keep fields aligned to their size
35  */
36 
37 #define QXL_GEM_DOMAIN_CPU 0
38 #define QXL_GEM_DOMAIN_VRAM 1
39 #define QXL_GEM_DOMAIN_SURFACE 2
40 
41 #define DRM_QXL_ALLOC       0x00
42 #define DRM_QXL_MAP         0x01
43 #define DRM_QXL_EXECBUFFER  0x02
44 #define DRM_QXL_UPDATE_AREA 0x03
45 #define DRM_QXL_GETPARAM    0x04
46 #define DRM_QXL_CLIENTCAP   0x05
47 
48 #define DRM_QXL_ALLOC_SURF  0x06
49 
50 struct drm_qxl_alloc {
51 	uint32_t size;
52 	uint32_t handle; /* 0 is an invalid handle */
53 };
54 
55 struct drm_qxl_map {
56 	uint64_t offset; /* use for mmap system call */
57 	uint32_t handle;
58 	uint32_t pad;
59 };
60 
61 /*
62  * dest is the bo we are writing the relocation into
63  * src is bo we are relocating.
64  * *(dest_handle.base_addr + dest_offset) = physical_address(src_handle.addr +
65  * src_offset)
66  */
67 #define QXL_RELOC_TYPE_BO 1
68 #define QXL_RELOC_TYPE_SURF 2
69 
70 struct drm_qxl_reloc {
71 	uint64_t src_offset; /* offset into src_handle or src buffer */
72 	uint64_t dst_offset; /* offset in dest handle */
73 	uint32_t src_handle; /* dest handle to compute address from */
74 	uint32_t dst_handle; /* 0 if to command buffer */
75 	uint32_t reloc_type;
76 	uint32_t pad;
77 };
78 
79 struct drm_qxl_command {
80 	uint64_t	 __user command; /* void* */
81 	uint64_t	 __user relocs; /* struct drm_qxl_reloc* */
82 	uint32_t		type;
83 	uint32_t		command_size;
84 	uint32_t		relocs_num;
85 	uint32_t                pad;
86 };
87 
88 /* XXX: call it drm_qxl_commands? */
89 struct drm_qxl_execbuffer {
90 	uint32_t		flags;		/* for future use */
91 	uint32_t		commands_num;
92 	uint64_t	 __user commands;	/* struct drm_qxl_command* */
93 };
94 
95 struct drm_qxl_update_area {
96 	uint32_t handle;
97 	uint32_t top;
98 	uint32_t left;
99 	uint32_t bottom;
100 	uint32_t right;
101 	uint32_t pad;
102 };
103 
104 #define QXL_PARAM_NUM_SURFACES 1 /* rom->n_surfaces */
105 #define QXL_PARAM_MAX_RELOCS 2
106 struct drm_qxl_getparam {
107 	uint64_t param;
108 	uint64_t value;
109 };
110 
111 /* these are one bit values */
112 struct drm_qxl_clientcap {
113 	uint32_t index;
114 	uint32_t pad;
115 };
116 
117 struct drm_qxl_alloc_surf {
118 	uint32_t format;
119 	uint32_t width;
120 	uint32_t height;
121 	int32_t stride;
122 	uint32_t handle;
123 	uint32_t pad;
124 };
125 
126 #define DRM_IOCTL_QXL_ALLOC \
127 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_ALLOC, struct drm_qxl_alloc)
128 
129 #define DRM_IOCTL_QXL_MAP \
130 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_MAP, struct drm_qxl_map)
131 
132 #define DRM_IOCTL_QXL_EXECBUFFER \
133 	DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_EXECBUFFER,\
134 		struct drm_qxl_execbuffer)
135 
136 #define DRM_IOCTL_QXL_UPDATE_AREA \
137 	DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_UPDATE_AREA,\
138 		struct drm_qxl_update_area)
139 
140 #define DRM_IOCTL_QXL_GETPARAM \
141 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_GETPARAM,\
142 		struct drm_qxl_getparam)
143 
144 #define DRM_IOCTL_QXL_CLIENTCAP \
145 	DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_CLIENTCAP,\
146 		struct drm_qxl_clientcap)
147 
148 #define DRM_IOCTL_QXL_ALLOC_SURF \
149 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_ALLOC_SURF,\
150 		struct drm_qxl_alloc_surf)
151 
152 #endif
153