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source: vbox/trunk/src/VBox/Additions/x11/x11include/libdrm-2.3.0/xf86drm.h@ 17698

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1/**
2 * \file xf86drm.h
3 * OS-independent header for DRM user-level library interface.
4 *
5 * \author Rickard E. (Rik) Faith <[email protected]>
6 */
7
8/*
9 * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
10 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
11 * All Rights Reserved.
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining a
14 * copy of this software and associated documentation files (the "Software"),
15 * to deal in the Software without restriction, including without limitation
16 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
17 * and/or sell copies of the Software, and to permit persons to whom the
18 * Software is furnished to do so, subject to the following conditions:
19 *
20 * The above copyright notice and this permission notice (including the next
21 * paragraph) shall be included in all copies or substantial portions of the
22 * Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
27 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
28 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
29 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
30 * DEALINGS IN THE SOFTWARE.
31 *
32 */
33
34/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/xf86drm.h,v 1.26 2003/08/16 19:26:37 dawes Exp $ */
35
36#ifndef _XF86DRM_H_
37#define _XF86DRM_H_
38
39#include <stdarg.h>
40#include <sys/types.h>
41#include <drm.h>
42
43 /* Defaults, if nothing set in xf86config */
44#define DRM_DEV_UID 0
45#define DRM_DEV_GID 0
46/* Default /dev/dri directory permissions 0755 */
47#define DRM_DEV_DIRMODE \
48 (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)
49#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
50
51#define DRM_DIR_NAME "/dev/dri"
52#define DRM_DEV_NAME "%s/card%d"
53#define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */
54
55#define DRM_ERR_NO_DEVICE (-1001)
56#define DRM_ERR_NO_ACCESS (-1002)
57#define DRM_ERR_NOT_ROOT (-1003)
58#define DRM_ERR_INVALID (-1004)
59#define DRM_ERR_NO_FD (-1005)
60
61#define DRM_AGP_NO_HANDLE 0
62
63typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */
64typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */
65
66typedef struct _drmServerInfo {
67 int (*debug_print)(const char *format, va_list ap);
68 int (*load_module)(const char *name);
69 void (*get_perms)(gid_t *, mode_t *);
70} drmServerInfo, *drmServerInfoPtr;
71
72typedef struct drmHashEntry {
73 int fd;
74 void (*f)(int, void *, void *);
75 void *tagTable;
76} drmHashEntry;
77
78extern void *drmGetHashTable(void);
79extern drmHashEntry *drmGetEntry(int fd);
80
81/**
82 * Driver version information.
83 *
84 * \sa drmGetVersion() and drmSetVersion().
85 */
86typedef struct _drmVersion {
87 int version_major; /**< Major version */
88 int version_minor; /**< Minor version */
89 int version_patchlevel; /**< Patch level */
90 int name_len; /**< Length of name buffer */
91 char *name; /**< Name of driver */
92 int date_len; /**< Length of date buffer */
93 char *date; /**< User-space buffer to hold date */
94 int desc_len; /**< Length of desc buffer */
95 char *desc; /**< User-space buffer to hold desc */
96} drmVersion, *drmVersionPtr;
97
98typedef struct _drmStats {
99 unsigned long count; /**< Number of data */
100 struct {
101 unsigned long value; /**< Value from kernel */
102 const char *long_format; /**< Suggested format for long_name */
103 const char *long_name; /**< Long name for value */
104 const char *rate_format; /**< Suggested format for rate_name */
105 const char *rate_name; /**< Short name for value per second */
106 int isvalue; /**< True if value (vs. counter) */
107 const char *mult_names; /**< Multiplier names (e.g., "KGM") */
108 int mult; /**< Multiplier value (e.g., 1024) */
109 int verbose; /**< Suggest only in verbose output */
110 } data[15];
111} drmStatsT;
112
113
114 /* All of these enums *MUST* match with the
115 kernel implementation -- so do *NOT*
116 change them! (The drmlib implementation
117 will just copy the flags instead of
118 translating them.) */
119typedef enum {
120 DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */
121 DRM_REGISTERS = 1, /**< no caching, no core dump */
122 DRM_SHM = 2, /**< shared, cached */
123 DRM_AGP = 3, /**< AGP/GART */
124 DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */
125 DRM_CONSISTENT = 5 /**< PCI consistent */
126} drmMapType;
127
128typedef enum {
129 DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */
130 DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */
131 DRM_LOCKED = 0x0004, /**< Physical pages locked */
132 DRM_KERNEL = 0x0008, /**< Kernel requires access */
133 DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */
134 DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */
135 DRM_REMOVABLE = 0x0040 /**< Removable mapping */
136} drmMapFlags;
137
138/**
139 * \warning These values *MUST* match drm.h
140 */
141typedef enum {
142 /** \name Flags for DMA buffer dispatch */
143 /*@{*/
144 DRM_DMA_BLOCK = 0x01, /**<
145 * Block until buffer dispatched.
146 *
147 * \note the buffer may not yet have been
148 * processed by the hardware -- getting a
149 * hardware lock with the hardware quiescent
150 * will ensure that the buffer has been
151 * processed.
152 */
153 DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */
154 DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */
155 /*@}*/
156
157 /** \name Flags for DMA buffer request */
158 /*@{*/
159 DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */
160 DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */
161 DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */
162 /*@}*/
163} drmDMAFlags;
164
165typedef enum {
166 DRM_PAGE_ALIGN = 0x01,
167 DRM_AGP_BUFFER = 0x02,
168 DRM_SG_BUFFER = 0x04,
169 DRM_FB_BUFFER = 0x08,
170 DRM_PCI_BUFFER_RO = 0x10
171} drmBufDescFlags;
172
173typedef enum {
174 DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */
175 DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */
176 DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */
177 DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */
178 /* These *HALT* flags aren't supported yet
179 -- they will be used to support the
180 full-screen DGA-like mode. */
181 DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */
182 DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */
183} drmLockFlags;
184
185typedef enum {
186 DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and
187 never swapped. */
188 DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */
189} drm_context_tFlags, *drm_context_tFlagsPtr;
190
191typedef struct _drmBufDesc {
192 int count; /**< Number of buffers of this size */
193 int size; /**< Size in bytes */
194 int low_mark; /**< Low water mark */
195 int high_mark; /**< High water mark */
196} drmBufDesc, *drmBufDescPtr;
197
198typedef struct _drmBufInfo {
199 int count; /**< Number of buffers described in list */
200 drmBufDescPtr list; /**< List of buffer descriptions */
201} drmBufInfo, *drmBufInfoPtr;
202
203typedef struct _drmBuf {
204 int idx; /**< Index into the master buffer list */
205 int total; /**< Buffer size */
206 int used; /**< Amount of buffer in use (for DMA) */
207 drmAddress address; /**< Address */
208} drmBuf, *drmBufPtr;
209
210/**
211 * Buffer mapping information.
212 *
213 * Used by drmMapBufs() and drmUnmapBufs() to store information about the
214 * mapped buffers.
215 */
216typedef struct _drmBufMap {
217 int count; /**< Number of buffers mapped */
218 drmBufPtr list; /**< Buffers */
219} drmBufMap, *drmBufMapPtr;
220
221typedef struct _drmLock {
222 volatile unsigned int lock;
223 char padding[60];
224 /* This is big enough for most current (and future?) architectures:
225 DEC Alpha: 32 bytes
226 Intel Merced: ?
227 Intel P5/PPro/PII/PIII: 32 bytes
228 Intel StrongARM: 32 bytes
229 Intel i386/i486: 16 bytes
230 MIPS: 32 bytes (?)
231 Motorola 68k: 16 bytes
232 Motorola PowerPC: 32 bytes
233 Sun SPARC: 32 bytes
234 */
235} drmLock, *drmLockPtr;
236
237/**
238 * Indices here refer to the offset into
239 * list in drmBufInfo
240 */
241typedef struct _drmDMAReq {
242 drm_context_t context; /**< Context handle */
243 int send_count; /**< Number of buffers to send */
244 int *send_list; /**< List of handles to buffers */
245 int *send_sizes; /**< Lengths of data to send, in bytes */
246 drmDMAFlags flags; /**< Flags */
247 int request_count; /**< Number of buffers requested */
248 int request_size; /**< Desired size of buffers requested */
249 int *request_list; /**< Buffer information */
250 int *request_sizes; /**< Minimum acceptable sizes */
251 int granted_count; /**< Number of buffers granted at this size */
252} drmDMAReq, *drmDMAReqPtr;
253
254typedef struct _drmRegion {
255 drm_handle_t handle;
256 unsigned int offset;
257 drmSize size;
258 drmAddress map;
259} drmRegion, *drmRegionPtr;
260
261typedef struct _drmTextureRegion {
262 unsigned char next;
263 unsigned char prev;
264 unsigned char in_use;
265 unsigned char padding; /**< Explicitly pad this out */
266 unsigned int age;
267} drmTextureRegion, *drmTextureRegionPtr;
268
269
270typedef enum {
271 DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
272 DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
273 DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */
274 DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
275 DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */
276} drmVBlankSeqType;
277
278typedef struct _drmVBlankReq {
279 drmVBlankSeqType type;
280 unsigned int sequence;
281 unsigned long signal;
282} drmVBlankReq, *drmVBlankReqPtr;
283
284typedef struct _drmVBlankReply {
285 drmVBlankSeqType type;
286 unsigned int sequence;
287 long tval_sec;
288 long tval_usec;
289} drmVBlankReply, *drmVBlankReplyPtr;
290
291typedef union _drmVBlank {
292 drmVBlankReq request;
293 drmVBlankReply reply;
294} drmVBlank, *drmVBlankPtr;
295
296typedef struct _drmSetVersion {
297 int drm_di_major;
298 int drm_di_minor;
299 int drm_dd_major;
300 int drm_dd_minor;
301} drmSetVersion, *drmSetVersionPtr;
302
303#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
304
305#define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */
306#define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */
307
308#if defined(__GNUC__) && (__GNUC__ >= 2)
309# if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__)
310 /* Reflect changes here to drmP.h */
311#define DRM_CAS(lock,old,new,__ret) \
312 do { \
313 int __dummy; /* Can't mark eax as clobbered */ \
314 __asm__ __volatile__( \
315 "lock ; cmpxchg %4,%1\n\t" \
316 "setnz %0" \
317 : "=d" (__ret), \
318 "=m" (__drm_dummy_lock(lock)), \
319 "=a" (__dummy) \
320 : "2" (old), \
321 "r" (new)); \
322 } while (0)
323
324#elif defined(__alpha__)
325
326#define DRM_CAS(lock, old, new, ret) \
327 do { \
328 int old32; \
329 int cur32; \
330 __asm__ __volatile__( \
331 " mb\n" \
332 " zap %4, 0xF0, %0\n" \
333 " ldl_l %1, %2\n" \
334 " zap %1, 0xF0, %1\n" \
335 " cmpeq %0, %1, %1\n" \
336 " beq %1, 1f\n" \
337 " bis %5, %5, %1\n" \
338 " stl_c %1, %2\n" \
339 "1: xor %1, 1, %1\n" \
340 " stl %1, %3" \
341 : "=r" (old32), \
342 "=&r" (cur32), \
343 "=m" (__drm_dummy_lock(lock)),\
344 "=m" (ret) \
345 : "r" (old), \
346 "r" (new)); \
347 } while(0)
348
349#elif defined(__sparc__)
350
351#define DRM_CAS(lock,old,new,__ret) \
352do { register unsigned int __old __asm("o0"); \
353 register unsigned int __new __asm("o1"); \
354 register volatile unsigned int *__lock __asm("o2"); \
355 __old = old; \
356 __new = new; \
357 __lock = (volatile unsigned int *)lock; \
358 __asm__ __volatile__( \
359 /*"cas [%2], %3, %0"*/ \
360 ".word 0xd3e29008\n\t" \
361 /*"membar #StoreStore | #StoreLoad"*/ \
362 ".word 0x8143e00a" \
363 : "=&r" (__new) \
364 : "0" (__new), \
365 "r" (__lock), \
366 "r" (__old) \
367 : "memory"); \
368 __ret = (__new != __old); \
369} while(0)
370
371#elif defined(__ia64__)
372
373#ifdef __INTEL_COMPILER
374/* this currently generates bad code (missing stop bits)... */
375#include <ia64intrin.h>
376
377#define DRM_CAS(lock,old,new,__ret) \
378 do { \
379 unsigned long __result, __old = (old) & 0xffffffff; \
380 __mf(); \
381 __result = _InterlockedCompareExchange_acq(&__drm_dummy_lock(lock), (new), __old);\
382 __ret = (__result) != (__old); \
383/* __ret = (__sync_val_compare_and_swap(&__drm_dummy_lock(lock), \
384 (old), (new)) \
385 != (old)); */\
386 } while (0)
387
388#else
389#define DRM_CAS(lock,old,new,__ret) \
390 do { \
391 unsigned int __result, __old = (old); \
392 __asm__ __volatile__( \
393 "mf\n" \
394 "mov ar.ccv=%2\n" \
395 ";;\n" \
396 "cmpxchg4.acq %0=%1,%3,ar.ccv" \
397 : "=r" (__result), "=m" (__drm_dummy_lock(lock)) \
398 : "r" ((unsigned long)__old), "r" (new) \
399 : "memory"); \
400 __ret = (__result) != (__old); \
401 } while (0)
402
403#endif
404
405#elif defined(__powerpc__)
406
407#define DRM_CAS(lock,old,new,__ret) \
408 do { \
409 __asm__ __volatile__( \
410 "sync;" \
411 "0: lwarx %0,0,%1;" \
412 " xor. %0,%3,%0;" \
413 " bne 1f;" \
414 " stwcx. %2,0,%1;" \
415 " bne- 0b;" \
416 "1: " \
417 "sync;" \
418 : "=&r"(__ret) \
419 : "r"(lock), "r"(new), "r"(old) \
420 : "cr0", "memory"); \
421 } while (0)
422
423#endif /* architecture */
424#endif /* __GNUC__ >= 2 */
425
426#ifndef DRM_CAS
427#define DRM_CAS(lock,old,new,ret) do { ret=1; } while (0) /* FAST LOCK FAILS */
428#endif
429
430#if defined(__alpha__) || defined(__powerpc__)
431#define DRM_CAS_RESULT(_result) int _result
432#else
433#define DRM_CAS_RESULT(_result) char _result
434#endif
435
436#define DRM_LIGHT_LOCK(fd,lock,context) \
437 do { \
438 DRM_CAS_RESULT(__ret); \
439 DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \
440 if (__ret) drmGetLock(fd,context,0); \
441 } while(0)
442
443 /* This one counts fast locks -- for
444 benchmarking only. */
445#define DRM_LIGHT_LOCK_COUNT(fd,lock,context,count) \
446 do { \
447 DRM_CAS_RESULT(__ret); \
448 DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \
449 if (__ret) drmGetLock(fd,context,0); \
450 else ++count; \
451 } while(0)
452
453#define DRM_LOCK(fd,lock,context,flags) \
454 do { \
455 if (flags) drmGetLock(fd,context,flags); \
456 else DRM_LIGHT_LOCK(fd,lock,context); \
457 } while(0)
458
459#define DRM_UNLOCK(fd,lock,context) \
460 do { \
461 DRM_CAS_RESULT(__ret); \
462 DRM_CAS(lock,DRM_LOCK_HELD|context,context,__ret); \
463 if (__ret) drmUnlock(fd,context); \
464 } while(0)
465
466 /* Simple spin locks */
467#define DRM_SPINLOCK(spin,val) \
468 do { \
469 DRM_CAS_RESULT(__ret); \
470 do { \
471 DRM_CAS(spin,0,val,__ret); \
472 if (__ret) while ((spin)->lock); \
473 } while (__ret); \
474 } while(0)
475
476#define DRM_SPINLOCK_TAKE(spin,val) \
477 do { \
478 DRM_CAS_RESULT(__ret); \
479 int cur; \
480 do { \
481 cur = (*spin).lock; \
482 DRM_CAS(spin,cur,val,__ret); \
483 } while (__ret); \
484 } while(0)
485
486#define DRM_SPINLOCK_COUNT(spin,val,count,__ret) \
487 do { \
488 int __i; \
489 __ret = 1; \
490 for (__i = 0; __ret && __i < count; __i++) { \
491 DRM_CAS(spin,0,val,__ret); \
492 if (__ret) for (;__i < count && (spin)->lock; __i++); \
493 } \
494 } while(0)
495
496#define DRM_SPINUNLOCK(spin,val) \
497 do { \
498 DRM_CAS_RESULT(__ret); \
499 if ((*spin).lock == val) { /* else server stole lock */ \
500 do { \
501 DRM_CAS(spin,val,0,__ret); \
502 } while (__ret); \
503 } \
504 } while(0)
505
506
507
508/* General user-level programmer's API: unprivileged */
509extern int drmAvailable(void);
510extern int drmOpen(const char *name, const char *busid);
511extern int drmClose(int fd);
512extern drmVersionPtr drmGetVersion(int fd);
513extern drmVersionPtr drmGetLibVersion(int fd);
514extern void drmFreeVersion(drmVersionPtr);
515extern int drmGetMagic(int fd, drm_magic_t * magic);
516extern char *drmGetBusid(int fd);
517extern int drmGetInterruptFromBusID(int fd, int busnum, int devnum,
518 int funcnum);
519extern int drmGetMap(int fd, int idx, drm_handle_t *offset,
520 drmSize *size, drmMapType *type,
521 drmMapFlags *flags, drm_handle_t *handle,
522 int *mtrr);
523extern int drmGetClient(int fd, int idx, int *auth, int *pid,
524 int *uid, unsigned long *magic,
525 unsigned long *iocs);
526extern int drmGetStats(int fd, drmStatsT *stats);
527extern int drmSetInterfaceVersion(int fd, drmSetVersion *version);
528extern int drmCommandNone(int fd, unsigned long drmCommandIndex);
529extern int drmCommandRead(int fd, unsigned long drmCommandIndex,
530 void *data, unsigned long size);
531extern int drmCommandWrite(int fd, unsigned long drmCommandIndex,
532 void *data, unsigned long size);
533extern int drmCommandWriteRead(int fd, unsigned long drmCommandIndex,
534 void *data, unsigned long size);
535
536/* General user-level programmer's API: X server (root) only */
537extern void drmFreeBusid(const char *busid);
538extern int drmSetBusid(int fd, const char *busid);
539extern int drmAuthMagic(int fd, drm_magic_t magic);
540extern int drmAddMap(int fd,
541 drm_handle_t offset,
542 drmSize size,
543 drmMapType type,
544 drmMapFlags flags,
545 drm_handle_t * handle);
546extern int drmRmMap(int fd, drm_handle_t handle);
547extern int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id,
548 drm_handle_t handle);
549
550extern int drmAddBufs(int fd, int count, int size,
551 drmBufDescFlags flags,
552 int agp_offset);
553extern int drmMarkBufs(int fd, double low, double high);
554extern int drmCreateContext(int fd, drm_context_t * handle);
555extern int drmSetContextFlags(int fd, drm_context_t context,
556 drm_context_tFlags flags);
557extern int drmGetContextFlags(int fd, drm_context_t context,
558 drm_context_tFlagsPtr flags);
559extern int drmAddContextTag(int fd, drm_context_t context, void *tag);
560extern int drmDelContextTag(int fd, drm_context_t context);
561extern void *drmGetContextTag(int fd, drm_context_t context);
562extern drm_context_t * drmGetReservedContextList(int fd, int *count);
563extern void drmFreeReservedContextList(drm_context_t *);
564extern int drmSwitchToContext(int fd, drm_context_t context);
565extern int drmDestroyContext(int fd, drm_context_t handle);
566extern int drmCreateDrawable(int fd, drm_drawable_t * handle);
567extern int drmDestroyDrawable(int fd, drm_drawable_t handle);
568extern int drmUpdateDrawableInfo(int fd, drm_drawable_t handle,
569 drm_drawable_info_type_t type,
570 unsigned int num, void *data);
571extern int drmCtlInstHandler(int fd, int irq);
572extern int drmCtlUninstHandler(int fd);
573
574/* General user-level programmer's API: authenticated client and/or X */
575extern int drmMap(int fd,
576 drm_handle_t handle,
577 drmSize size,
578 drmAddressPtr address);
579extern int drmUnmap(drmAddress address, drmSize size);
580extern drmBufInfoPtr drmGetBufInfo(int fd);
581extern drmBufMapPtr drmMapBufs(int fd);
582extern int drmUnmapBufs(drmBufMapPtr bufs);
583extern int drmDMA(int fd, drmDMAReqPtr request);
584extern int drmFreeBufs(int fd, int count, int *list);
585extern int drmGetLock(int fd,
586 drm_context_t context,
587 drmLockFlags flags);
588extern int drmUnlock(int fd, drm_context_t context);
589extern int drmFinish(int fd, int context, drmLockFlags flags);
590extern int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id,
591 drm_handle_t * handle);
592
593/* AGP/GART support: X server (root) only */
594extern int drmAgpAcquire(int fd);
595extern int drmAgpRelease(int fd);
596extern int drmAgpEnable(int fd, unsigned long mode);
597extern int drmAgpAlloc(int fd, unsigned long size,
598 unsigned long type, unsigned long *address,
599 drm_handle_t *handle);
600extern int drmAgpFree(int fd, drm_handle_t handle);
601extern int drmAgpBind(int fd, drm_handle_t handle,
602 unsigned long offset);
603extern int drmAgpUnbind(int fd, drm_handle_t handle);
604
605/* AGP/GART info: authenticated client and/or X */
606extern int drmAgpVersionMajor(int fd);
607extern int drmAgpVersionMinor(int fd);
608extern unsigned long drmAgpGetMode(int fd);
609extern unsigned long drmAgpBase(int fd); /* Physical location */
610extern unsigned long drmAgpSize(int fd); /* Bytes */
611extern unsigned long drmAgpMemoryUsed(int fd);
612extern unsigned long drmAgpMemoryAvail(int fd);
613extern unsigned int drmAgpVendorId(int fd);
614extern unsigned int drmAgpDeviceId(int fd);
615
616/* PCI scatter/gather support: X server (root) only */
617extern int drmScatterGatherAlloc(int fd, unsigned long size,
618 drm_handle_t *handle);
619extern int drmScatterGatherFree(int fd, drm_handle_t handle);
620
621extern int drmWaitVBlank(int fd, drmVBlankPtr vbl);
622
623/* Support routines */
624extern void drmSetServerInfo(drmServerInfoPtr info);
625extern int drmError(int err, const char *label);
626extern void *drmMalloc(int size);
627extern void drmFree(void *pt);
628
629/* Hash table routines */
630extern void *drmHashCreate(void);
631extern int drmHashDestroy(void *t);
632extern int drmHashLookup(void *t, unsigned long key, void **value);
633extern int drmHashInsert(void *t, unsigned long key, void *value);
634extern int drmHashDelete(void *t, unsigned long key);
635extern int drmHashFirst(void *t, unsigned long *key, void **value);
636extern int drmHashNext(void *t, unsigned long *key, void **value);
637
638/* PRNG routines */
639extern void *drmRandomCreate(unsigned long seed);
640extern int drmRandomDestroy(void *state);
641extern unsigned long drmRandom(void *state);
642extern double drmRandomDouble(void *state);
643
644/* Skip list routines */
645
646extern void *drmSLCreate(void);
647extern int drmSLDestroy(void *l);
648extern int drmSLLookup(void *l, unsigned long key, void **value);
649extern int drmSLInsert(void *l, unsigned long key, void *value);
650extern int drmSLDelete(void *l, unsigned long key);
651extern int drmSLNext(void *l, unsigned long *key, void **value);
652extern int drmSLFirst(void *l, unsigned long *key, void **value);
653extern void drmSLDump(void *l);
654extern int drmSLLookupNeighbors(void *l, unsigned long key,
655 unsigned long *prev_key, void **prev_value,
656 unsigned long *next_key, void **next_value);
657
658extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened);
659extern void drmCloseOnce(int fd);
660
661#include "xf86mm.h"
662
663#endif
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