1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/**************************************************************************
*
* Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*
**************************************************************************/
#ifndef _XF86MM_H_
#define _XF86MM_H_
#include <stddef.h>
#include <stdint.h>
#include "drm.h"
/*
* Note on multithreaded applications using this interface.
* Libdrm is not threadsafe, so common buffer, TTM, and fence objects need to
* be protected using an external mutex.
*
* Note: Don't protect the following functions, as it may lead to deadlocks:
* drmBOUnmap().
* The kernel is synchronizing and refcounting buffer maps.
* User space only needs to refcount object usage within the same application.
*/
/*
* List macros heavily inspired by the Linux kernel
* list handling. No list looping yet.
*/
typedef struct _drmMMListHead
{
struct _drmMMListHead *prev;
struct _drmMMListHead *next;
} drmMMListHead;
#define DRMINITLISTHEAD(__item) \
do{ \
(__item)->prev = (__item); \
(__item)->next = (__item); \
} while (0)
#define DRMLISTADD(__item, __list) \
do { \
(__item)->prev = (__list); \
(__item)->next = (__list)->next; \
(__list)->next->prev = (__item); \
(__list)->next = (__item); \
} while (0)
#define DRMLISTADDTAIL(__item, __list) \
do { \
(__item)->next = (__list); \
(__item)->prev = (__list)->prev; \
(__list)->prev->next = (__item); \
(__list)->prev = (__item); \
} while(0)
#define DRMLISTDEL(__item) \
do { \
(__item)->prev->next = (__item)->next; \
(__item)->next->prev = (__item)->prev; \
} while(0)
#define DRMLISTDELINIT(__item) \
do { \
(__item)->prev->next = (__item)->next; \
(__item)->next->prev = (__item)->prev; \
(__item)->next = (__item); \
(__item)->prev = (__item); \
} while(0)
#define DRMLISTENTRY(__type, __item, __field) \
((__type *)(((char *) (__item)) - offsetof(__type, __field)))
typedef struct _drmFence
{
unsigned handle;
int fence_class;
unsigned type;
unsigned flags;
unsigned signaled;
uint32_t sequence;
unsigned pad[4]; /* for future expansion */
} drmFence;
typedef struct _drmBO
{
unsigned handle;
uint64_t mapHandle;
uint64_t flags;
uint64_t proposedFlags;
unsigned mapFlags;
unsigned long size;
unsigned long offset;
unsigned long start;
unsigned replyFlags;
unsigned fenceFlags;
unsigned pageAlignment;
unsigned tileInfo;
unsigned hwTileStride;
unsigned desiredTileStride;
void *virtual;
void *mapVirtual;
int mapCount;
unsigned pad[8]; /* for future expansion */
} drmBO;
/*
* Fence functions.
*/
extern int drmFenceCreate(int fd, unsigned flags, int fence_class,
unsigned type, drmFence *fence);
extern int drmFenceReference(int fd, unsigned handle, drmFence *fence);
extern int drmFenceUnreference(int fd, const drmFence *fence);
extern int drmFenceFlush(int fd, drmFence *fence, unsigned flush_type);
extern int drmFenceSignaled(int fd, drmFence *fence,
unsigned fenceType, int *signaled);
extern int drmFenceWait(int fd, unsigned flags, drmFence *fence,
unsigned flush_type);
extern int drmFenceEmit(int fd, unsigned flags, drmFence *fence,
unsigned emit_type);
extern int drmFenceBuffers(int fd, unsigned flags, uint32_t fence_class, drmFence *fence);
/*
* Buffer object functions.
*/
extern int drmBOCreate(int fd, unsigned long size,
unsigned pageAlignment, void *user_buffer,
uint64_t mask, unsigned hint, drmBO *buf);
extern int drmBOReference(int fd, unsigned handle, drmBO *buf);
extern int drmBOUnreference(int fd, drmBO *buf);
extern int drmBOMap(int fd, drmBO *buf, unsigned mapFlags, unsigned mapHint,
void **address);
extern int drmBOUnmap(int fd, drmBO *buf);
extern int drmBOFence(int fd, drmBO *buf, unsigned flags, unsigned fenceHandle);
extern int drmBOInfo(int fd, drmBO *buf);
extern int drmBOBusy(int fd, drmBO *buf, int *busy);
extern int drmBOWaitIdle(int fd, drmBO *buf, unsigned hint);
/*
* Initialization functions.
*/
extern int drmMMInit(int fd, unsigned long pOffset, unsigned long pSize,
unsigned memType);
extern int drmMMTakedown(int fd, unsigned memType);
extern int drmMMLock(int fd, unsigned memType, int lockBM, int ignoreNoEvict);
extern int drmMMUnlock(int fd, unsigned memType, int unlockBM);
extern int drmMMInfo(int fd, unsigned memType, uint64_t *size);
extern int drmBOSetStatus(int fd, drmBO *buf,
uint64_t flags, uint64_t mask,
unsigned int hint,
unsigned int desired_tile_stride,
unsigned int tile_info);
extern int drmBOVersion(int fd, unsigned int *major,
unsigned int *minor,
unsigned int *patchlevel);
#endif
|
