1 /** 2 * \file xf86drm.h 3 * OS-independent header for DRM user-level library interface. 4 * 5 * \author Rickard E. (Rik) Faith <faith (at) valinux.com> 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 #ifndef _XF86DRM_H_ 35 #define _XF86DRM_H_ 36 37 #if defined(__cplusplus) || defined(c_plusplus) 38 extern "C" { 39 #endif 40 41 #include <stdarg.h> 42 #include <sys/types.h> 43 #include <stdint.h> 44 #include <drm.h> 45 46 /* Defaults, if nothing set in xf86config */ 47 #define DRM_DEV_UID 0 48 #define DRM_DEV_GID 0 49 /* Default /dev/dri directory permissions 0755 */ 50 #define DRM_DEV_DIRMODE \ 51 (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) 52 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 53 54 #define DRM_DIR_NAME "/dev/dri" 55 #define DRM_DEV_NAME "%s/card%d" 56 #define DRM_CONTROL_DEV_NAME "%s/controlD%d" 57 #define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */ 58 59 #define DRM_ERR_NO_DEVICE (-1001) 60 #define DRM_ERR_NO_ACCESS (-1002) 61 #define DRM_ERR_NOT_ROOT (-1003) 62 #define DRM_ERR_INVALID (-1004) 63 #define DRM_ERR_NO_FD (-1005) 64 65 #define DRM_AGP_NO_HANDLE 0 66 67 typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */ 68 typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */ 69 70 typedef struct _drmServerInfo { 71 int (*debug_print)(const char *format, va_list ap); 72 int (*load_module)(const char *name); 73 void (*get_perms)(gid_t *, mode_t *); 74 } drmServerInfo, *drmServerInfoPtr; 75 76 typedef struct drmHashEntry { 77 int fd; 78 void (*f)(int, void *, void *); 79 void *tagTable; 80 } drmHashEntry; 81 82 extern int drmIoctl(int fd, unsigned long request, void *arg); 83 extern void *drmGetHashTable(void); 84 extern drmHashEntry *drmGetEntry(int fd); 85 86 /** 87 * Driver version information. 88 * 89 * \sa drmGetVersion() and drmSetVersion(). 90 */ 91 typedef struct _drmVersion { 92 int version_major; /**< Major version */ 93 int version_minor; /**< Minor version */ 94 int version_patchlevel; /**< Patch level */ 95 int name_len; /**< Length of name buffer */ 96 char *name; /**< Name of driver */ 97 int date_len; /**< Length of date buffer */ 98 char *date; /**< User-space buffer to hold date */ 99 int desc_len; /**< Length of desc buffer */ 100 char *desc; /**< User-space buffer to hold desc */ 101 } drmVersion, *drmVersionPtr; 102 103 typedef struct _drmStats { 104 unsigned long count; /**< Number of data */ 105 struct { 106 unsigned long value; /**< Value from kernel */ 107 const char *long_format; /**< Suggested format for long_name */ 108 const char *long_name; /**< Long name for value */ 109 const char *rate_format; /**< Suggested format for rate_name */ 110 const char *rate_name; /**< Short name for value per second */ 111 int isvalue; /**< True if value (vs. counter) */ 112 const char *mult_names; /**< Multiplier names (e.g., "KGM") */ 113 int mult; /**< Multiplier value (e.g., 1024) */ 114 int verbose; /**< Suggest only in verbose output */ 115 } data[15]; 116 } drmStatsT; 117 118 119 /* All of these enums *MUST* match with the 120 kernel implementation -- so do *NOT* 121 change them! (The drmlib implementation 122 will just copy the flags instead of 123 translating them.) */ 124 typedef enum { 125 DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */ 126 DRM_REGISTERS = 1, /**< no caching, no core dump */ 127 DRM_SHM = 2, /**< shared, cached */ 128 DRM_AGP = 3, /**< AGP/GART */ 129 DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */ 130 DRM_CONSISTENT = 5 /**< PCI consistent */ 131 } drmMapType; 132 133 typedef enum { 134 DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */ 135 DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */ 136 DRM_LOCKED = 0x0004, /**< Physical pages locked */ 137 DRM_KERNEL = 0x0008, /**< Kernel requires access */ 138 DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */ 139 DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */ 140 DRM_REMOVABLE = 0x0040 /**< Removable mapping */ 141 } drmMapFlags; 142 143 /** 144 * \warning These values *MUST* match drm.h 145 */ 146 typedef enum { 147 /** \name Flags for DMA buffer dispatch */ 148 /*@{*/ 149 DRM_DMA_BLOCK = 0x01, /**< 150 * Block until buffer dispatched. 151 * 152 * \note the buffer may not yet have been 153 * processed by the hardware -- getting a 154 * hardware lock with the hardware quiescent 155 * will ensure that the buffer has been 156 * processed. 157 */ 158 DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */ 159 DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */ 160 /*@}*/ 161 162 /** \name Flags for DMA buffer request */ 163 /*@{*/ 164 DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */ 165 DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */ 166 DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */ 167 /*@}*/ 168 } drmDMAFlags; 169 170 typedef enum { 171 DRM_PAGE_ALIGN = 0x01, 172 DRM_AGP_BUFFER = 0x02, 173 DRM_SG_BUFFER = 0x04, 174 DRM_FB_BUFFER = 0x08, 175 DRM_PCI_BUFFER_RO = 0x10 176 } drmBufDescFlags; 177 178 typedef enum { 179 DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */ 180 DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */ 181 DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */ 182 DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */ 183 /* These *HALT* flags aren't supported yet 184 -- they will be used to support the 185 full-screen DGA-like mode. */ 186 DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */ 187 DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */ 188 } drmLockFlags; 189 190 typedef enum { 191 DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and 192 never swapped. */ 193 DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */ 194 } drm_context_tFlags, *drm_context_tFlagsPtr; 195 196 typedef struct _drmBufDesc { 197 int count; /**< Number of buffers of this size */ 198 int size; /**< Size in bytes */ 199 int low_mark; /**< Low water mark */ 200 int high_mark; /**< High water mark */ 201 } drmBufDesc, *drmBufDescPtr; 202 203 typedef struct _drmBufInfo { 204 int count; /**< Number of buffers described in list */ 205 drmBufDescPtr list; /**< List of buffer descriptions */ 206 } drmBufInfo, *drmBufInfoPtr; 207 208 typedef struct _drmBuf { 209 int idx; /**< Index into the master buffer list */ 210 int total; /**< Buffer size */ 211 int used; /**< Amount of buffer in use (for DMA) */ 212 drmAddress address; /**< Address */ 213 } drmBuf, *drmBufPtr; 214 215 /** 216 * Buffer mapping information. 217 * 218 * Used by drmMapBufs() and drmUnmapBufs() to store information about the 219 * mapped buffers. 220 */ 221 typedef struct _drmBufMap { 222 int count; /**< Number of buffers mapped */ 223 drmBufPtr list; /**< Buffers */ 224 } drmBufMap, *drmBufMapPtr; 225 226 typedef struct _drmLock { 227 volatile unsigned int lock; 228 char padding[60]; 229 /* This is big enough for most current (and future?) architectures: 230 DEC Alpha: 32 bytes 231 Intel Merced: ? 232 Intel P5/PPro/PII/PIII: 32 bytes 233 Intel StrongARM: 32 bytes 234 Intel i386/i486: 16 bytes 235 MIPS: 32 bytes (?) 236 Motorola 68k: 16 bytes 237 Motorola PowerPC: 32 bytes 238 Sun SPARC: 32 bytes 239 */ 240 } drmLock, *drmLockPtr; 241 242 /** 243 * Indices here refer to the offset into 244 * list in drmBufInfo 245 */ 246 typedef struct _drmDMAReq { 247 drm_context_t context; /**< Context handle */ 248 int send_count; /**< Number of buffers to send */ 249 int *send_list; /**< List of handles to buffers */ 250 int *send_sizes; /**< Lengths of data to send, in bytes */ 251 drmDMAFlags flags; /**< Flags */ 252 int request_count; /**< Number of buffers requested */ 253 int request_size; /**< Desired size of buffers requested */ 254 int *request_list; /**< Buffer information */ 255 int *request_sizes; /**< Minimum acceptable sizes */ 256 int granted_count; /**< Number of buffers granted at this size */ 257 } drmDMAReq, *drmDMAReqPtr; 258 259 typedef struct _drmRegion { 260 drm_handle_t handle; 261 unsigned int offset; 262 drmSize size; 263 drmAddress map; 264 } drmRegion, *drmRegionPtr; 265 266 typedef struct _drmTextureRegion { 267 unsigned char next; 268 unsigned char prev; 269 unsigned char in_use; 270 unsigned char padding; /**< Explicitly pad this out */ 271 unsigned int age; 272 } drmTextureRegion, *drmTextureRegionPtr; 273 274 275 typedef enum { 276 DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ 277 DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ 278 DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ 279 DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ 280 DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ 281 DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */ 282 } drmVBlankSeqType; 283 284 typedef struct _drmVBlankReq { 285 drmVBlankSeqType type; 286 unsigned int sequence; 287 unsigned long signal; 288 } drmVBlankReq, *drmVBlankReqPtr; 289 290 typedef struct _drmVBlankReply { 291 drmVBlankSeqType type; 292 unsigned int sequence; 293 long tval_sec; 294 long tval_usec; 295 } drmVBlankReply, *drmVBlankReplyPtr; 296 297 typedef union _drmVBlank { 298 drmVBlankReq request; 299 drmVBlankReply reply; 300 } drmVBlank, *drmVBlankPtr; 301 302 typedef struct _drmSetVersion { 303 int drm_di_major; 304 int drm_di_minor; 305 int drm_dd_major; 306 int drm_dd_minor; 307 } drmSetVersion, *drmSetVersionPtr; 308 309 #define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock) 310 311 #define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */ 312 #define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */ 313 314 #if defined(__GNUC__) && (__GNUC__ >= 2) 315 # if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__) 316 /* Reflect changes here to drmP.h */ 317 #define DRM_CAS(lock,old,new,__ret) \ 318 do { \ 319 int __dummy; /* Can't mark eax as clobbered */ \ 320 __asm__ __volatile__( \ 321 "lock ; cmpxchg %4,%1\n\t" \ 322 "setnz %0" \ 323 : "=d" (__ret), \ 324 "=m" (__drm_dummy_lock(lock)), \ 325 "=a" (__dummy) \ 326 : "2" (old), \ 327 "r" (new)); \ 328 } while (0) 329 330 #elif defined(__alpha__) 331 332 #define DRM_CAS(lock, old, new, ret) \ 333 do { \ 334 int tmp, old32; \ 335 __asm__ __volatile__( \ 336 " addl $31, %5, %3\n" \ 337 "1: ldl_l %0, %2\n" \ 338 " cmpeq %0, %3, %1\n" \ 339 " beq %1, 2f\n" \ 340 " mov %4, %0\n" \ 341 " stl_c %0, %2\n" \ 342 " beq %0, 3f\n" \ 343 " mb\n" \ 344 "2: cmpeq %1, 0, %1\n" \ 345 ".subsection 2\n" \ 346 "3: br 1b\n" \ 347 ".previous" \ 348 : "=&r"(tmp), "=&r"(ret), \ 349 "=m"(__drm_dummy_lock(lock)), \ 350 "=&r"(old32) \ 351 : "r"(new), "r"(old) \ 352 : "memory"); \ 353 } while (0) 354 355 #elif defined(__sparc__) 356 357 #define DRM_CAS(lock,old,new,__ret) \ 358 do { register unsigned int __old __asm("o0"); \ 359 register unsigned int __new __asm("o1"); \ 360 register volatile unsigned int *__lock __asm("o2"); \ 361 __old = old; \ 362 __new = new; \ 363 __lock = (volatile unsigned int *)lock; \ 364 __asm__ __volatile__( \ 365 /*"cas [%2], %3, %0"*/ \ 366 ".word 0xd3e29008\n\t" \ 367 /*"membar #StoreStore | #StoreLoad"*/ \ 368 ".word 0x8143e00a" \ 369 : "=&r" (__new) \ 370 : "0" (__new), \ 371 "r" (__lock), \ 372 "r" (__old) \ 373 : "memory"); \ 374 __ret = (__new != __old); \ 375 } while(0) 376 377 #elif defined(__ia64__) 378 379 #ifdef __INTEL_COMPILER 380 /* this currently generates bad code (missing stop bits)... */ 381 #include <ia64intrin.h> 382 383 #define DRM_CAS(lock,old,new,__ret) \ 384 do { \ 385 unsigned long __result, __old = (old) & 0xffffffff; \ 386 __mf(); \ 387 __result = _InterlockedCompareExchange_acq(&__drm_dummy_lock(lock), (new), __old);\ 388 __ret = (__result) != (__old); \ 389 /* __ret = (__sync_val_compare_and_swap(&__drm_dummy_lock(lock), \ 390 (old), (new)) \ 391 != (old)); */\ 392 } while (0) 393 394 #else 395 #define DRM_CAS(lock,old,new,__ret) \ 396 do { \ 397 unsigned int __result, __old = (old); \ 398 __asm__ __volatile__( \ 399 "mf\n" \ 400 "mov ar.ccv=%2\n" \ 401 ";;\n" \ 402 "cmpxchg4.acq %0=%1,%3,ar.ccv" \ 403 : "=r" (__result), "=m" (__drm_dummy_lock(lock)) \ 404 : "r" ((unsigned long)__old), "r" (new) \ 405 : "memory"); \ 406 __ret = (__result) != (__old); \ 407 } while (0) 408 409 #endif 410 411 #elif defined(__powerpc__) 412 413 #define DRM_CAS(lock,old,new,__ret) \ 414 do { \ 415 __asm__ __volatile__( \ 416 "sync;" \ 417 "0: lwarx %0,0,%1;" \ 418 " xor. %0,%3,%0;" \ 419 " bne 1f;" \ 420 " stwcx. %2,0,%1;" \ 421 " bne- 0b;" \ 422 "1: " \ 423 "sync;" \ 424 : "=&r"(__ret) \ 425 : "r"(lock), "r"(new), "r"(old) \ 426 : "cr0", "memory"); \ 427 } while (0) 428 429 #endif /* architecture */ 430 #endif /* __GNUC__ >= 2 */ 431 432 #ifndef DRM_CAS 433 #define DRM_CAS(lock,old,new,ret) do { ret=1; } while (0) /* FAST LOCK FAILS */ 434 #endif 435 436 #if defined(__alpha__) 437 #define DRM_CAS_RESULT(_result) long _result 438 #elif defined(__powerpc__) 439 #define DRM_CAS_RESULT(_result) int _result 440 #else 441 #define DRM_CAS_RESULT(_result) char _result 442 #endif 443 444 #define DRM_LIGHT_LOCK(fd,lock,context) \ 445 do { \ 446 DRM_CAS_RESULT(__ret); \ 447 DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ 448 if (__ret) drmGetLock(fd,context,0); \ 449 } while(0) 450 451 /* This one counts fast locks -- for 452 benchmarking only. */ 453 #define DRM_LIGHT_LOCK_COUNT(fd,lock,context,count) \ 454 do { \ 455 DRM_CAS_RESULT(__ret); \ 456 DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ 457 if (__ret) drmGetLock(fd,context,0); \ 458 else ++count; \ 459 } while(0) 460 461 #define DRM_LOCK(fd,lock,context,flags) \ 462 do { \ 463 if (flags) drmGetLock(fd,context,flags); \ 464 else DRM_LIGHT_LOCK(fd,lock,context); \ 465 } while(0) 466 467 #define DRM_UNLOCK(fd,lock,context) \ 468 do { \ 469 DRM_CAS_RESULT(__ret); \ 470 DRM_CAS(lock,DRM_LOCK_HELD|context,context,__ret); \ 471 if (__ret) drmUnlock(fd,context); \ 472 } while(0) 473 474 /* Simple spin locks */ 475 #define DRM_SPINLOCK(spin,val) \ 476 do { \ 477 DRM_CAS_RESULT(__ret); \ 478 do { \ 479 DRM_CAS(spin,0,val,__ret); \ 480 if (__ret) while ((spin)->lock); \ 481 } while (__ret); \ 482 } while(0) 483 484 #define DRM_SPINLOCK_TAKE(spin,val) \ 485 do { \ 486 DRM_CAS_RESULT(__ret); \ 487 int cur; \ 488 do { \ 489 cur = (*spin).lock; \ 490 DRM_CAS(spin,cur,val,__ret); \ 491 } while (__ret); \ 492 } while(0) 493 494 #define DRM_SPINLOCK_COUNT(spin,val,count,__ret) \ 495 do { \ 496 int __i; \ 497 __ret = 1; \ 498 for (__i = 0; __ret && __i < count; __i++) { \ 499 DRM_CAS(spin,0,val,__ret); \ 500 if (__ret) for (;__i < count && (spin)->lock; __i++); \ 501 } \ 502 } while(0) 503 504 #define DRM_SPINUNLOCK(spin,val) \ 505 do { \ 506 DRM_CAS_RESULT(__ret); \ 507 if ((*spin).lock == val) { /* else server stole lock */ \ 508 do { \ 509 DRM_CAS(spin,val,0,__ret); \ 510 } while (__ret); \ 511 } \ 512 } while(0) 513 514 515 516 /* General user-level programmer's API: unprivileged */ 517 extern int drmAvailable(void); 518 extern int drmOpen(const char *name, const char *busid); 519 extern int drmOpenControl(int minor); 520 extern int drmClose(int fd); 521 extern drmVersionPtr drmGetVersion(int fd); 522 extern drmVersionPtr drmGetLibVersion(int fd); 523 extern void drmFreeVersion(drmVersionPtr); 524 extern int drmGetMagic(int fd, drm_magic_t * magic); 525 extern char *drmGetBusid(int fd); 526 extern int drmGetInterruptFromBusID(int fd, int busnum, int devnum, 527 int funcnum); 528 extern int drmGetMap(int fd, int idx, drm_handle_t *offset, 529 drmSize *size, drmMapType *type, 530 drmMapFlags *flags, drm_handle_t *handle, 531 int *mtrr); 532 extern int drmGetClient(int fd, int idx, int *auth, int *pid, 533 int *uid, unsigned long *magic, 534 unsigned long *iocs); 535 extern int drmGetStats(int fd, drmStatsT *stats); 536 extern int drmSetInterfaceVersion(int fd, drmSetVersion *version); 537 extern int drmCommandNone(int fd, unsigned long drmCommandIndex); 538 extern int drmCommandRead(int fd, unsigned long drmCommandIndex, 539 void *data, unsigned long size); 540 extern int drmCommandWrite(int fd, unsigned long drmCommandIndex, 541 void *data, unsigned long size); 542 extern int drmCommandWriteRead(int fd, unsigned long drmCommandIndex, 543 void *data, unsigned long size); 544 545 /* General user-level programmer's API: X server (root) only */ 546 extern void drmFreeBusid(const char *busid); 547 extern int drmSetBusid(int fd, const char *busid); 548 extern int drmAuthMagic(int fd, drm_magic_t magic); 549 extern int drmAddMap(int fd, 550 drm_handle_t offset, 551 drmSize size, 552 drmMapType type, 553 drmMapFlags flags, 554 drm_handle_t * handle); 555 extern int drmRmMap(int fd, drm_handle_t handle); 556 extern int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id, 557 drm_handle_t handle); 558 559 extern int drmAddBufs(int fd, int count, int size, 560 drmBufDescFlags flags, 561 int agp_offset); 562 extern int drmMarkBufs(int fd, double low, double high); 563 extern int drmCreateContext(int fd, drm_context_t * handle); 564 extern int drmSetContextFlags(int fd, drm_context_t context, 565 drm_context_tFlags flags); 566 extern int drmGetContextFlags(int fd, drm_context_t context, 567 drm_context_tFlagsPtr flags); 568 extern int drmAddContextTag(int fd, drm_context_t context, void *tag); 569 extern int drmDelContextTag(int fd, drm_context_t context); 570 extern void *drmGetContextTag(int fd, drm_context_t context); 571 extern drm_context_t * drmGetReservedContextList(int fd, int *count); 572 extern void drmFreeReservedContextList(drm_context_t *); 573 extern int drmSwitchToContext(int fd, drm_context_t context); 574 extern int drmDestroyContext(int fd, drm_context_t handle); 575 extern int drmCreateDrawable(int fd, drm_drawable_t * handle); 576 extern int drmDestroyDrawable(int fd, drm_drawable_t handle); 577 extern int drmUpdateDrawableInfo(int fd, drm_drawable_t handle, 578 drm_drawable_info_type_t type, 579 unsigned int num, void *data); 580 extern int drmCtlInstHandler(int fd, int irq); 581 extern int drmCtlUninstHandler(int fd); 582 583 /* General user-level programmer's API: authenticated client and/or X */ 584 extern int drmMap(int fd, 585 drm_handle_t handle, 586 drmSize size, 587 drmAddressPtr address); 588 extern int drmUnmap(drmAddress address, drmSize size); 589 extern drmBufInfoPtr drmGetBufInfo(int fd); 590 extern drmBufMapPtr drmMapBufs(int fd); 591 extern int drmUnmapBufs(drmBufMapPtr bufs); 592 extern int drmDMA(int fd, drmDMAReqPtr request); 593 extern int drmFreeBufs(int fd, int count, int *list); 594 extern int drmGetLock(int fd, 595 drm_context_t context, 596 drmLockFlags flags); 597 extern int drmUnlock(int fd, drm_context_t context); 598 extern int drmFinish(int fd, int context, drmLockFlags flags); 599 extern int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id, 600 drm_handle_t * handle); 601 602 /* AGP/GART support: X server (root) only */ 603 extern int drmAgpAcquire(int fd); 604 extern int drmAgpRelease(int fd); 605 extern int drmAgpEnable(int fd, unsigned long mode); 606 extern int drmAgpAlloc(int fd, unsigned long size, 607 unsigned long type, unsigned long *address, 608 drm_handle_t *handle); 609 extern int drmAgpFree(int fd, drm_handle_t handle); 610 extern int drmAgpBind(int fd, drm_handle_t handle, 611 unsigned long offset); 612 extern int drmAgpUnbind(int fd, drm_handle_t handle); 613 614 /* AGP/GART info: authenticated client and/or X */ 615 extern int drmAgpVersionMajor(int fd); 616 extern int drmAgpVersionMinor(int fd); 617 extern unsigned long drmAgpGetMode(int fd); 618 extern unsigned long drmAgpBase(int fd); /* Physical location */ 619 extern unsigned long drmAgpSize(int fd); /* Bytes */ 620 extern unsigned long drmAgpMemoryUsed(int fd); 621 extern unsigned long drmAgpMemoryAvail(int fd); 622 extern unsigned int drmAgpVendorId(int fd); 623 extern unsigned int drmAgpDeviceId(int fd); 624 625 /* PCI scatter/gather support: X server (root) only */ 626 extern int drmScatterGatherAlloc(int fd, unsigned long size, 627 drm_handle_t *handle); 628 extern int drmScatterGatherFree(int fd, drm_handle_t handle); 629 630 extern int drmWaitVBlank(int fd, drmVBlankPtr vbl); 631 632 /* Support routines */ 633 extern void drmSetServerInfo(drmServerInfoPtr info); 634 extern int drmError(int err, const char *label); 635 extern void *drmMalloc(int size); 636 extern void drmFree(void *pt); 637 638 /* Hash table routines */ 639 extern void *drmHashCreate(void); 640 extern int drmHashDestroy(void *t); 641 extern int drmHashLookup(void *t, unsigned long key, void **value); 642 extern int drmHashInsert(void *t, unsigned long key, void *value); 643 extern int drmHashDelete(void *t, unsigned long key); 644 extern int drmHashFirst(void *t, unsigned long *key, void **value); 645 extern int drmHashNext(void *t, unsigned long *key, void **value); 646 647 /* PRNG routines */ 648 extern void *drmRandomCreate(unsigned long seed); 649 extern int drmRandomDestroy(void *state); 650 extern unsigned long drmRandom(void *state); 651 extern double drmRandomDouble(void *state); 652 653 /* Skip list routines */ 654 655 extern void *drmSLCreate(void); 656 extern int drmSLDestroy(void *l); 657 extern int drmSLLookup(void *l, unsigned long key, void **value); 658 extern int drmSLInsert(void *l, unsigned long key, void *value); 659 extern int drmSLDelete(void *l, unsigned long key); 660 extern int drmSLNext(void *l, unsigned long *key, void **value); 661 extern int drmSLFirst(void *l, unsigned long *key, void **value); 662 extern void drmSLDump(void *l); 663 extern int drmSLLookupNeighbors(void *l, unsigned long key, 664 unsigned long *prev_key, void **prev_value, 665 unsigned long *next_key, void **next_value); 666 667 extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened); 668 extern void drmCloseOnce(int fd); 669 extern void drmMsg(const char *format, ...); 670 671 extern int drmSetMaster(int fd); 672 extern int drmDropMaster(int fd); 673 674 #if defined(__cplusplus) || defined(c_plusplus) 675 } 676 #endif 677 678 #endif 679
