1 /**************************************************************************
3 * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
27 **************************************************************************/
36 * Note on multithreaded applications using this interface.
37 * Libdrm is not threadsafe, so common buffer, TTM, and fence objects need to
38 * be protected using an external mutex.
40 * Note: Don't protect the following functions, as it may lead to deadlocks:
42 * The kernel is synchronizing and refcounting buffer maps.
43 * User space only needs to refcount object usage within the same application.
48 * List macros heavily inspired by the Linux kernel
49 * list handling. No list looping yet.
52 typedef struct _drmMMListHead
54 struct _drmMMListHead *prev;
55 struct _drmMMListHead *next;
58 #define DRMINITLISTHEAD(__item) \
60 (__item)->prev = (__item); \
61 (__item)->next = (__item); \
64 #define DRMLISTADD(__item, __list) \
66 (__item)->prev = (__list); \
67 (__item)->next = (__list)->next; \
68 (__list)->next->prev = (__item); \
69 (__list)->next = (__item); \
72 #define DRMLISTADDTAIL(__item, __list) \
74 (__item)->next = (__list); \
75 (__item)->prev = (__list)->prev; \
76 (__list)->prev->next = (__item); \
77 (__list)->prev = (__item); \
80 #define DRMLISTDEL(__item) \
82 (__item)->prev->next = (__item)->next; \
83 (__item)->next->prev = (__item)->prev; \
86 #define DRMLISTDELINIT(__item) \
88 (__item)->prev->next = (__item)->next; \
89 (__item)->next->prev = (__item)->prev; \
90 (__item)->next = (__item); \
91 (__item)->prev = (__item); \
94 #define DRMLISTENTRY(__type, __item, __field) \
95 ((__type *)(((char *) (__item)) - offsetof(__type, __field)))
97 typedef struct _drmFence
105 unsigned pad[4]; /* for future expansion */
108 typedef struct _drmBO
113 uint64_t proposedFlags;
116 unsigned long offset;
120 unsigned pageAlignment;
122 unsigned hwTileStride;
123 unsigned desiredTileStride;
127 unsigned pad[8]; /* for future expansion */
134 extern int drmFenceCreate(int fd, unsigned flags, int fence_class,
135 unsigned type, drmFence *fence);
136 extern int drmFenceReference(int fd, unsigned handle, drmFence *fence);
137 extern int drmFenceUnreference(int fd, const drmFence *fence);
138 extern int drmFenceFlush(int fd, drmFence *fence, unsigned flush_type);
139 extern int drmFenceSignaled(int fd, drmFence *fence,
140 unsigned fenceType, int *signaled);
141 extern int drmFenceWait(int fd, unsigned flags, drmFence *fence,
142 unsigned flush_type);
143 extern int drmFenceEmit(int fd, unsigned flags, drmFence *fence,
145 extern int drmFenceBuffers(int fd, unsigned flags, uint32_t fence_class, drmFence *fence);
149 * Buffer object functions.
152 extern int drmBOCreate(int fd, unsigned long size,
153 unsigned pageAlignment, void *user_buffer,
154 uint64_t mask, unsigned hint, drmBO *buf);
155 extern int drmBOReference(int fd, unsigned handle, drmBO *buf);
156 extern int drmBOUnreference(int fd, drmBO *buf);
157 extern int drmBOMap(int fd, drmBO *buf, unsigned mapFlags, unsigned mapHint,
159 extern int drmBOUnmap(int fd, drmBO *buf);
160 extern int drmBOFence(int fd, drmBO *buf, unsigned flags, unsigned fenceHandle);
161 extern int drmBOInfo(int fd, drmBO *buf);
162 extern int drmBOBusy(int fd, drmBO *buf, int *busy);
164 extern int drmBOWaitIdle(int fd, drmBO *buf, unsigned hint);
167 * Initialization functions.
170 extern int drmMMInit(int fd, unsigned long pOffset, unsigned long pSize,
172 extern int drmMMTakedown(int fd, unsigned memType);
173 extern int drmMMLock(int fd, unsigned memType, int lockBM, int ignoreNoEvict);
174 extern int drmMMUnlock(int fd, unsigned memType, int unlockBM);
175 extern int drmMMInfo(int fd, unsigned memType, uint64_t *size);
176 extern int drmBOSetStatus(int fd, drmBO *buf,
177 uint64_t flags, uint64_t mask,
179 unsigned int desired_tile_stride,
180 unsigned int tile_info);
181 extern int drmBOVersion(int fd, unsigned int *major,
183 unsigned int *patchlevel);