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 #include <stdarg.h> 38 #include <sys/types.h> 39 #include <stdint.h> 40 #include <drm.h> 41 42 #if defined(__cplusplus) 43 extern "C" { 44 #endif 45 46 #ifndef DRM_MAX_MINOR 47 #define DRM_MAX_MINOR 16 48 #endif 49 50 #if defined(__linux__) 51 52 #define DRM_IOCTL_NR(n) _IOC_NR(n) 53 #define DRM_IOC_VOID _IOC_NONE 54 #define DRM_IOC_READ _IOC_READ 55 #define DRM_IOC_WRITE _IOC_WRITE 56 #define DRM_IOC_READWRITE _IOC_READ|_IOC_WRITE 57 #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) 58 59 #else /* One of the *BSDs */ 60 61 #include <sys/ioccom.h> 62 #define DRM_IOCTL_NR(n) ((n) & 0xff) 63 #define DRM_IOC_VOID IOC_VOID 64 #define DRM_IOC_READ IOC_OUT 65 #define DRM_IOC_WRITE IOC_IN 66 #define DRM_IOC_READWRITE IOC_INOUT 67 #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) 68 69 #endif 70 71 /* Defaults, if nothing set in xf86config */ 72 #define DRM_DEV_UID 0 73 #define DRM_DEV_GID 0 74 /* Default /dev/dri directory permissions 0755 */ 75 #define DRM_DEV_DIRMODE \ 76 (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) 77 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 78 79 #ifdef __OpenBSD__ 80 #define DRM_DIR_NAME "/dev" 81 #define DRM_DEV_NAME "%s/drm%d" 82 #define DRM_CONTROL_DEV_NAME "%s/drmC%d" 83 #define DRM_RENDER_DEV_NAME "%s/drmR%d" 84 #else 85 #define DRM_DIR_NAME "/dev/dri" 86 #define DRM_DEV_NAME "%s/card%d" 87 #define DRM_CONTROL_DEV_NAME "%s/controlD%d" 88 #define DRM_RENDER_DEV_NAME "%s/renderD%d" 89 #define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */ 90 #endif 91 92 #define DRM_ERR_NO_DEVICE (-1001) 93 #define DRM_ERR_NO_ACCESS (-1002) 94 #define DRM_ERR_NOT_ROOT (-1003) 95 #define DRM_ERR_INVALID (-1004) 96 #define DRM_ERR_NO_FD (-1005) 97 98 #define DRM_AGP_NO_HANDLE 0 99 100 typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */ 101 typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */ 102 103 #if (__GNUC__ >= 3) 104 #define DRM_PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a))) 105 #else 106 #define DRM_PRINTFLIKE(f, a) 107 #endif 108 109 typedef struct _drmServerInfo { 110 int (*debug_print)(const char *format, va_list ap) DRM_PRINTFLIKE(1,0); 111 int (*load_module)(const char *name); 112 void (*get_perms)(gid_t *, mode_t *); 113 } drmServerInfo, *drmServerInfoPtr; 114 115 typedef struct drmHashEntry { 116 int fd; 117 void (*f)(int, void *, void *); 118 void *tagTable; 119 } drmHashEntry; 120 121 extern int drmIoctl(int fd, unsigned long request, void *arg); 122 extern void *drmGetHashTable(void); 123 extern drmHashEntry *drmGetEntry(int fd); 124 125 /** 126 * Driver version information. 127 * 128 * \sa drmGetVersion() and drmSetVersion(). 129 */ 130 typedef struct _drmVersion { 131 int version_major; /**< Major version */ 132 int version_minor; /**< Minor version */ 133 int version_patchlevel; /**< Patch level */ 134 int name_len; /**< Length of name buffer */ 135 char *name; /**< Name of driver */ 136 int date_len; /**< Length of date buffer */ 137 char *date; /**< User-space buffer to hold date */ 138 int desc_len; /**< Length of desc buffer */ 139 char *desc; /**< User-space buffer to hold desc */ 140 } drmVersion, *drmVersionPtr; 141 142 typedef struct _drmStats { 143 unsigned long count; /**< Number of data */ 144 struct { 145 unsigned long value; /**< Value from kernel */ 146 const char *long_format; /**< Suggested format for long_name */ 147 const char *long_name; /**< Long name for value */ 148 const char *rate_format; /**< Suggested format for rate_name */ 149 const char *rate_name; /**< Short name for value per second */ 150 int isvalue; /**< True if value (vs. counter) */ 151 const char *mult_names; /**< Multiplier names (e.g., "KGM") */ 152 int mult; /**< Multiplier value (e.g., 1024) */ 153 int verbose; /**< Suggest only in verbose output */ 154 } data[15]; 155 } drmStatsT; 156 157 158 /* All of these enums *MUST* match with the 159 kernel implementation -- so do *NOT* 160 change them! (The drmlib implementation 161 will just copy the flags instead of 162 translating them.) */ 163 typedef enum { 164 DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */ 165 DRM_REGISTERS = 1, /**< no caching, no core dump */ 166 DRM_SHM = 2, /**< shared, cached */ 167 DRM_AGP = 3, /**< AGP/GART */ 168 DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */ 169 DRM_CONSISTENT = 5 /**< PCI consistent */ 170 } drmMapType; 171 172 typedef enum { 173 DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */ 174 DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */ 175 DRM_LOCKED = 0x0004, /**< Physical pages locked */ 176 DRM_KERNEL = 0x0008, /**< Kernel requires access */ 177 DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */ 178 DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */ 179 DRM_REMOVABLE = 0x0040 /**< Removable mapping */ 180 } drmMapFlags; 181 182 /** 183 * \warning These values *MUST* match drm.h 184 */ 185 typedef enum { 186 /** \name Flags for DMA buffer dispatch */ 187 /*@{*/ 188 DRM_DMA_BLOCK = 0x01, /**< 189 * Block until buffer dispatched. 190 * 191 * \note the buffer may not yet have been 192 * processed by the hardware -- getting a 193 * hardware lock with the hardware quiescent 194 * will ensure that the buffer has been 195 * processed. 196 */ 197 DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */ 198 DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */ 199 /*@}*/ 200 201 /** \name Flags for DMA buffer request */ 202 /*@{*/ 203 DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */ 204 DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */ 205 DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */ 206 /*@}*/ 207 } drmDMAFlags; 208 209 typedef enum { 210 DRM_PAGE_ALIGN = 0x01, 211 DRM_AGP_BUFFER = 0x02, 212 DRM_SG_BUFFER = 0x04, 213 DRM_FB_BUFFER = 0x08, 214 DRM_PCI_BUFFER_RO = 0x10 215 } drmBufDescFlags; 216 217 typedef enum { 218 DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */ 219 DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */ 220 DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */ 221 DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */ 222 /* These *HALT* flags aren't supported yet 223 -- they will be used to support the 224 full-screen DGA-like mode. */ 225 DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */ 226 DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */ 227 } drmLockFlags; 228 229 typedef enum { 230 DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and 231 never swapped. */ 232 DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */ 233 } drm_context_tFlags, *drm_context_tFlagsPtr; 234 235 typedef struct _drmBufDesc { 236 int count; /**< Number of buffers of this size */ 237 int size; /**< Size in bytes */ 238 int low_mark; /**< Low water mark */ 239 int high_mark; /**< High water mark */ 240 } drmBufDesc, *drmBufDescPtr; 241 242 typedef struct _drmBufInfo { 243 int count; /**< Number of buffers described in list */ 244 drmBufDescPtr list; /**< List of buffer descriptions */ 245 } drmBufInfo, *drmBufInfoPtr; 246 247 typedef struct _drmBuf { 248 int idx; /**< Index into the master buffer list */ 249 int total; /**< Buffer size */ 250 int used; /**< Amount of buffer in use (for DMA) */ 251 drmAddress address; /**< Address */ 252 } drmBuf, *drmBufPtr; 253 254 /** 255 * Buffer mapping information. 256 * 257 * Used by drmMapBufs() and drmUnmapBufs() to store information about the 258 * mapped buffers. 259 */ 260 typedef struct _drmBufMap { 261 int count; /**< Number of buffers mapped */ 262 drmBufPtr list; /**< Buffers */ 263 } drmBufMap, *drmBufMapPtr; 264 265 typedef struct _drmLock { 266 volatile unsigned int lock; 267 char padding[60]; 268 /* This is big enough for most current (and future?) architectures: 269 DEC Alpha: 32 bytes 270 Intel Merced: ? 271 Intel P5/PPro/PII/PIII: 32 bytes 272 Intel StrongARM: 32 bytes 273 Intel i386/i486: 16 bytes 274 MIPS: 32 bytes (?) 275 Motorola 68k: 16 bytes 276 Motorola PowerPC: 32 bytes 277 Sun SPARC: 32 bytes 278 */ 279 } drmLock, *drmLockPtr; 280 281 /** 282 * Indices here refer to the offset into 283 * list in drmBufInfo 284 */ 285 typedef struct _drmDMAReq { 286 drm_context_t context; /**< Context handle */ 287 int send_count; /**< Number of buffers to send */ 288 int *send_list; /**< List of handles to buffers */ 289 int *send_sizes; /**< Lengths of data to send, in bytes */ 290 drmDMAFlags flags; /**< Flags */ 291 int request_count; /**< Number of buffers requested */ 292 int request_size; /**< Desired size of buffers requested */ 293 int *request_list; /**< Buffer information */ 294 int *request_sizes; /**< Minimum acceptable sizes */ 295 int granted_count; /**< Number of buffers granted at this size */ 296 } drmDMAReq, *drmDMAReqPtr; 297 298 typedef struct _drmRegion { 299 drm_handle_t handle; 300 unsigned int offset; 301 drmSize size; 302 drmAddress map; 303 } drmRegion, *drmRegionPtr; 304 305 typedef struct _drmTextureRegion { 306 unsigned char next; 307 unsigned char prev; 308 unsigned char in_use; 309 unsigned char padding; /**< Explicitly pad this out */ 310 unsigned int age; 311 } drmTextureRegion, *drmTextureRegionPtr; 312 313 314 typedef enum { 315 DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ 316 DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ 317 /* bits 1-6 are reserved for high crtcs */ 318 DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e, 319 DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */ 320 DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ 321 DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ 322 DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ 323 DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */ 324 } drmVBlankSeqType; 325 #define DRM_VBLANK_HIGH_CRTC_SHIFT 1 326 327 typedef struct _drmVBlankReq { 328 drmVBlankSeqType type; 329 unsigned int sequence; 330 unsigned long signal; 331 } drmVBlankReq, *drmVBlankReqPtr; 332 333 typedef struct _drmVBlankReply { 334 drmVBlankSeqType type; 335 unsigned int sequence; 336 long tval_sec; 337 long tval_usec; 338 } drmVBlankReply, *drmVBlankReplyPtr; 339 340 typedef union _drmVBlank { 341 drmVBlankReq request; 342 drmVBlankReply reply; 343 } drmVBlank, *drmVBlankPtr; 344 345 typedef struct _drmSetVersion { 346 int drm_di_major; 347 int drm_di_minor; 348 int drm_dd_major; 349 int drm_dd_minor; 350 } drmSetVersion, *drmSetVersionPtr; 351 352 #define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock) 353 354 #define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */ 355 #define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */ 356 357 #if defined(__GNUC__) && (__GNUC__ >= 2) 358 # if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__) 359 /* Reflect changes here to drmP.h */ 360 #define DRM_CAS(lock,old,new,__ret) \ 361 do { \ 362 int __dummy; /* Can't mark eax as clobbered */ \ 363 __asm__ __volatile__( \ 364 "lock ; cmpxchg %4,%1\n\t" \ 365 "setnz %0" \ 366 : "=d" (__ret), \ 367 "=m" (__drm_dummy_lock(lock)), \ 368 "=a" (__dummy) \ 369 : "2" (old), \ 370 "r" (new)); \ 371 } while (0) 372 373 #elif defined(__alpha__) 374 375 #define DRM_CAS(lock, old, new, ret) \ 376 do { \ 377 int tmp, old32; \ 378 __asm__ __volatile__( \ 379 " addl $31, %5, %3\n" \ 380 "1: ldl_l %0, %2\n" \ 381 " cmpeq %0, %3, %1\n" \ 382 " beq %1, 2f\n" \ 383 " mov %4, %0\n" \ 384 " stl_c %0, %2\n" \ 385 " beq %0, 3f\n" \ 386 " mb\n" \ 387 "2: cmpeq %1, 0, %1\n" \ 388 ".subsection 2\n" \ 389 "3: br 1b\n" \ 390 ".previous" \ 391 : "=&r"(tmp), "=&r"(ret), \ 392 "=m"(__drm_dummy_lock(lock)), \ 393 "=&r"(old32) \ 394 : "r"(new), "r"(old) \ 395 : "memory"); \ 396 } while (0) 397 398 #elif defined(__sparc__) 399 400 #define DRM_CAS(lock,old,new,__ret) \ 401 do { register unsigned int __old __asm("o0"); \ 402 register unsigned int __new __asm("o1"); \ 403 register volatile unsigned int *__lock __asm("o2"); \ 404 __old = old; \ 405 __new = new; \ 406 __lock = (volatile unsigned int *)lock; \ 407 __asm__ __volatile__( \ 408 /*"cas [%2], %3, %0"*/ \ 409 ".word 0xd3e29008\n\t" \ 410 /*"membar #StoreStore | #StoreLoad"*/ \ 411 ".word 0x8143e00a" \ 412 : "=&r" (__new) \ 413 : "0" (__new), \ 414 "r" (__lock), \ 415 "r" (__old) \ 416 : "memory"); \ 417 __ret = (__new != __old); \ 418 } while(0) 419 420 #elif defined(__ia64__) 421 422 #ifdef __INTEL_COMPILER 423 /* this currently generates bad code (missing stop bits)... */ 424 #include <ia64intrin.h> 425 426 #define DRM_CAS(lock,old,new,__ret) \ 427 do { \ 428 unsigned long __result, __old = (old) & 0xffffffff; \ 429 __mf(); \ 430 __result = _InterlockedCompareExchange_acq(&__drm_dummy_lock(lock), (new), __old);\ 431 __ret = (__result) != (__old); \ 432 /* __ret = (__sync_val_compare_and_swap(&__drm_dummy_lock(lock), \ 433 (old), (new)) \ 434 != (old)); */\ 435 } while (0) 436 437 #else 438 #define DRM_CAS(lock,old,new,__ret) \ 439 do { \ 440 unsigned int __result, __old = (old); \ 441 __asm__ __volatile__( \ 442 "mf\n" \ 443 "mov ar.ccv=%2\n" \ 444 ";;\n" \ 445 "cmpxchg4.acq %0=%1,%3,ar.ccv" \ 446 : "=r" (__result), "=m" (__drm_dummy_lock(lock)) \ 447 : "r" ((unsigned long)__old), "r" (new) \ 448 : "memory"); \ 449 __ret = (__result) != (__old); \ 450 } while (0) 451 452 #endif 453 454 #elif defined(__powerpc__) 455 456 #define DRM_CAS(lock,old,new,__ret) \ 457 do { \ 458 __asm__ __volatile__( \ 459 "sync;" \ 460 "0: lwarx %0,0,%1;" \ 461 " xor. %0,%3,%0;" \ 462 " bne 1f;" \ 463 " stwcx. %2,0,%1;" \ 464 " bne- 0b;" \ 465 "1: " \ 466 "sync;" \ 467 : "=&r"(__ret) \ 468 : "r"(lock), "r"(new), "r"(old) \ 469 : "cr0", "memory"); \ 470 } while (0) 471 472 #endif /* architecture */ 473 #endif /* __GNUC__ >= 2 */ 474 475 #ifndef DRM_CAS 476 #define DRM_CAS(lock,old,new,ret) do { ret=1; } while (0) /* FAST LOCK FAILS */ 477 #endif 478 479 #if defined(__alpha__) 480 #define DRM_CAS_RESULT(_result) long _result 481 #elif defined(__powerpc__) 482 #define DRM_CAS_RESULT(_result) int _result 483 #else 484 #define DRM_CAS_RESULT(_result) char _result 485 #endif 486 487 #define DRM_LIGHT_LOCK(fd,lock,context) \ 488 do { \ 489 DRM_CAS_RESULT(__ret); \ 490 DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ 491 if (__ret) drmGetLock(fd,context,0); \ 492 } while(0) 493 494 /* This one counts fast locks -- for 495 benchmarking only. */ 496 #define DRM_LIGHT_LOCK_COUNT(fd,lock,context,count) \ 497 do { \ 498 DRM_CAS_RESULT(__ret); \ 499 DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ 500 if (__ret) drmGetLock(fd,context,0); \ 501 else ++count; \ 502 } while(0) 503 504 #define DRM_LOCK(fd,lock,context,flags) \ 505 do { \ 506 if (flags) drmGetLock(fd,context,flags); \ 507 else DRM_LIGHT_LOCK(fd,lock,context); \ 508 } while(0) 509 510 #define DRM_UNLOCK(fd,lock,context) \ 511 do { \ 512 DRM_CAS_RESULT(__ret); \ 513 DRM_CAS(lock,DRM_LOCK_HELD|context,context,__ret); \ 514 if (__ret) drmUnlock(fd,context); \ 515 } while(0) 516 517 /* Simple spin locks */ 518 #define DRM_SPINLOCK(spin,val) \ 519 do { \ 520 DRM_CAS_RESULT(__ret); \ 521 do { \ 522 DRM_CAS(spin,0,val,__ret); \ 523 if (__ret) while ((spin)->lock); \ 524 } while (__ret); \ 525 } while(0) 526 527 #define DRM_SPINLOCK_TAKE(spin,val) \ 528 do { \ 529 DRM_CAS_RESULT(__ret); \ 530 int cur; \ 531 do { \ 532 cur = (*spin).lock; \ 533 DRM_CAS(spin,cur,val,__ret); \ 534 } while (__ret); \ 535 } while(0) 536 537 #define DRM_SPINLOCK_COUNT(spin,val,count,__ret) \ 538 do { \ 539 int __i; \ 540 __ret = 1; \ 541 for (__i = 0; __ret && __i < count; __i++) { \ 542 DRM_CAS(spin,0,val,__ret); \ 543 if (__ret) for (;__i < count && (spin)->lock; __i++); \ 544 } \ 545 } while(0) 546 547 #define DRM_SPINUNLOCK(spin,val) \ 548 do { \ 549 DRM_CAS_RESULT(__ret); \ 550 if ((*spin).lock == val) { /* else server stole lock */ \ 551 do { \ 552 DRM_CAS(spin,val,0,__ret); \ 553 } while (__ret); \ 554 } \ 555 } while(0) 556 557 558 559 /* General user-level programmer's API: unprivileged */ 560 extern int drmAvailable(void); 561 extern int drmOpen(const char *name, const char *busid); 562 563 #define DRM_NODE_PRIMARY 0 564 #define DRM_NODE_CONTROL 1 565 #define DRM_NODE_RENDER 2 566 #define DRM_NODE_MAX 3 567 568 extern int drmOpenWithType(const char *name, const char *busid, 569 int type); 570 571 extern int drmOpenControl(int minor); 572 extern int drmOpenRender(int minor); 573 extern int drmClose(int fd); 574 extern drmVersionPtr drmGetVersion(int fd); 575 extern drmVersionPtr drmGetLibVersion(int fd); 576 extern int drmGetCap(int fd, uint64_t capability, uint64_t *value); 577 extern void drmFreeVersion(drmVersionPtr); 578 extern int drmGetMagic(int fd, drm_magic_t * magic); 579 extern char *drmGetBusid(int fd); 580 extern int drmGetInterruptFromBusID(int fd, int busnum, int devnum, 581 int funcnum); 582 extern int drmGetMap(int fd, int idx, drm_handle_t *offset, 583 drmSize *size, drmMapType *type, 584 drmMapFlags *flags, drm_handle_t *handle, 585 int *mtrr); 586 extern int drmGetClient(int fd, int idx, int *auth, int *pid, 587 int *uid, unsigned long *magic, 588 unsigned long *iocs); 589 extern int drmGetStats(int fd, drmStatsT *stats); 590 extern int drmSetInterfaceVersion(int fd, drmSetVersion *version); 591 extern int drmCommandNone(int fd, unsigned long drmCommandIndex); 592 extern int drmCommandRead(int fd, unsigned long drmCommandIndex, 593 void *data, unsigned long size); 594 extern int drmCommandWrite(int fd, unsigned long drmCommandIndex, 595 void *data, unsigned long size); 596 extern int drmCommandWriteRead(int fd, unsigned long drmCommandIndex, 597 void *data, unsigned long size); 598 599 /* General user-level programmer's API: X server (root) only */ 600 extern void drmFreeBusid(const char *busid); 601 extern int drmSetBusid(int fd, const char *busid); 602 extern int drmAuthMagic(int fd, drm_magic_t magic); 603 extern int drmAddMap(int fd, 604 drm_handle_t offset, 605 drmSize size, 606 drmMapType type, 607 drmMapFlags flags, 608 drm_handle_t * handle); 609 extern int drmRmMap(int fd, drm_handle_t handle); 610 extern int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id, 611 drm_handle_t handle); 612 613 extern int drmAddBufs(int fd, int count, int size, 614 drmBufDescFlags flags, 615 int agp_offset); 616 extern int drmMarkBufs(int fd, double low, double high); 617 extern int drmCreateContext(int fd, drm_context_t * handle); 618 extern int drmSetContextFlags(int fd, drm_context_t context, 619 drm_context_tFlags flags); 620 extern int drmGetContextFlags(int fd, drm_context_t context, 621 drm_context_tFlagsPtr flags); 622 extern int drmAddContextTag(int fd, drm_context_t context, void *tag); 623 extern int drmDelContextTag(int fd, drm_context_t context); 624 extern void *drmGetContextTag(int fd, drm_context_t context); 625 extern drm_context_t * drmGetReservedContextList(int fd, int *count); 626 extern void drmFreeReservedContextList(drm_context_t *); 627 extern int drmSwitchToContext(int fd, drm_context_t context); 628 extern int drmDestroyContext(int fd, drm_context_t handle); 629 extern int drmCreateDrawable(int fd, drm_drawable_t * handle); 630 extern int drmDestroyDrawable(int fd, drm_drawable_t handle); 631 extern int drmUpdateDrawableInfo(int fd, drm_drawable_t handle, 632 drm_drawable_info_type_t type, 633 unsigned int num, void *data); 634 extern int drmCtlInstHandler(int fd, int irq); 635 extern int drmCtlUninstHandler(int fd); 636 extern int drmSetClientCap(int fd, uint64_t capability, 637 uint64_t value); 638 639 /* General user-level programmer's API: authenticated client and/or X */ 640 extern int drmMap(int fd, 641 drm_handle_t handle, 642 drmSize size, 643 drmAddressPtr address); 644 extern int drmUnmap(drmAddress address, drmSize size); 645 extern drmBufInfoPtr drmGetBufInfo(int fd); 646 extern drmBufMapPtr drmMapBufs(int fd); 647 extern int drmUnmapBufs(drmBufMapPtr bufs); 648 extern int drmDMA(int fd, drmDMAReqPtr request); 649 extern int drmFreeBufs(int fd, int count, int *list); 650 extern int drmGetLock(int fd, 651 drm_context_t context, 652 drmLockFlags flags); 653 extern int drmUnlock(int fd, drm_context_t context); 654 extern int drmFinish(int fd, int context, drmLockFlags flags); 655 extern int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id, 656 drm_handle_t * handle); 657 658 /* AGP/GART support: X server (root) only */ 659 extern int drmAgpAcquire(int fd); 660 extern int drmAgpRelease(int fd); 661 extern int drmAgpEnable(int fd, unsigned long mode); 662 extern int drmAgpAlloc(int fd, unsigned long size, 663 unsigned long type, unsigned long *address, 664 drm_handle_t *handle); 665 extern int drmAgpFree(int fd, drm_handle_t handle); 666 extern int drmAgpBind(int fd, drm_handle_t handle, 667 unsigned long offset); 668 extern int drmAgpUnbind(int fd, drm_handle_t handle); 669 670 /* AGP/GART info: authenticated client and/or X */ 671 extern int drmAgpVersionMajor(int fd); 672 extern int drmAgpVersionMinor(int fd); 673 extern unsigned long drmAgpGetMode(int fd); 674 extern unsigned long drmAgpBase(int fd); /* Physical location */ 675 extern unsigned long drmAgpSize(int fd); /* Bytes */ 676 extern unsigned long drmAgpMemoryUsed(int fd); 677 extern unsigned long drmAgpMemoryAvail(int fd); 678 extern unsigned int drmAgpVendorId(int fd); 679 extern unsigned int drmAgpDeviceId(int fd); 680 681 /* PCI scatter/gather support: X server (root) only */ 682 extern int drmScatterGatherAlloc(int fd, unsigned long size, 683 drm_handle_t *handle); 684 extern int drmScatterGatherFree(int fd, drm_handle_t handle); 685 686 extern int drmWaitVBlank(int fd, drmVBlankPtr vbl); 687 688 /* Support routines */ 689 extern void drmSetServerInfo(drmServerInfoPtr info); 690 extern int drmError(int err, const char *label); 691 extern void *drmMalloc(int size); 692 extern void drmFree(void *pt); 693 694 /* Hash table routines */ 695 extern void *drmHashCreate(void); 696 extern int drmHashDestroy(void *t); 697 extern int drmHashLookup(void *t, unsigned long key, void **value); 698 extern int drmHashInsert(void *t, unsigned long key, void *value); 699 extern int drmHashDelete(void *t, unsigned long key); 700 extern int drmHashFirst(void *t, unsigned long *key, void **value); 701 extern int drmHashNext(void *t, unsigned long *key, void **value); 702 703 /* PRNG routines */ 704 extern void *drmRandomCreate(unsigned long seed); 705 extern int drmRandomDestroy(void *state); 706 extern unsigned long drmRandom(void *state); 707 extern double drmRandomDouble(void *state); 708 709 /* Skip list routines */ 710 711 extern void *drmSLCreate(void); 712 extern int drmSLDestroy(void *l); 713 extern int drmSLLookup(void *l, unsigned long key, void **value); 714 extern int drmSLInsert(void *l, unsigned long key, void *value); 715 extern int drmSLDelete(void *l, unsigned long key); 716 extern int drmSLNext(void *l, unsigned long *key, void **value); 717 extern int drmSLFirst(void *l, unsigned long *key, void **value); 718 extern void drmSLDump(void *l); 719 extern int drmSLLookupNeighbors(void *l, unsigned long key, 720 unsigned long *prev_key, void **prev_value, 721 unsigned long *next_key, void **next_value); 722 723 extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened); 724 extern int drmOpenOnceWithType(const char *BusID, int *newlyopened, int type); 725 extern void drmCloseOnce(int fd); 726 extern void drmMsg(const char *format, ...) DRM_PRINTFLIKE(1, 2); 727 728 extern int drmSetMaster(int fd); 729 extern int drmDropMaster(int fd); 730 731 #define DRM_EVENT_CONTEXT_VERSION 2 732 733 typedef struct _drmEventContext { 734 735 /* This struct is versioned so we can add more pointers if we 736 * add more events. */ 737 int version; 738 739 void (*vblank_handler)(int fd, 740 unsigned int sequence, 741 unsigned int tv_sec, 742 unsigned int tv_usec, 743 void *user_data); 744 745 void (*page_flip_handler)(int fd, 746 unsigned int sequence, 747 unsigned int tv_sec, 748 unsigned int tv_usec, 749 void *user_data); 750 751 } drmEventContext, *drmEventContextPtr; 752 753 extern int drmHandleEvent(int fd, drmEventContextPtr evctx); 754 755 extern char *drmGetDeviceNameFromFd(int fd); 756 extern int drmGetNodeTypeFromFd(int fd); 757 758 extern int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int *prime_fd); 759 extern int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t *handle); 760 761 extern char *drmGetPrimaryDeviceNameFromFd(int fd); 762 extern char *drmGetRenderDeviceNameFromFd(int fd); 763 764 #define DRM_BUS_PCI 0 765 766 typedef struct _drmPciBusInfo { 767 uint16_t domain; 768 uint8_t bus; 769 uint8_t dev; 770 uint8_t func; 771 } drmPciBusInfo, *drmPciBusInfoPtr; 772 773 typedef struct _drmPciDeviceInfo { 774 uint16_t vendor_id; 775 uint16_t device_id; 776 uint16_t subvendor_id; 777 uint16_t subdevice_id; 778 uint8_t revision_id; 779 } drmPciDeviceInfo, *drmPciDeviceInfoPtr; 780 781 typedef struct _drmDevice { 782 char **nodes; /* DRM_NODE_MAX sized array */ 783 int available_nodes; /* DRM_NODE_* bitmask */ 784 int bustype; 785 union { 786 drmPciBusInfoPtr pci; 787 } businfo; 788 union { 789 drmPciDeviceInfoPtr pci; 790 } deviceinfo; 791 } drmDevice, *drmDevicePtr; 792 793 extern int drmGetDevice(int fd, drmDevicePtr *device); 794 extern void drmFreeDevice(drmDevicePtr *device); 795 796 extern int drmGetDevices(drmDevicePtr devices[], int max_devices); 797 extern void drmFreeDevices(drmDevicePtr devices[], int count); 798 799 #if defined(__cplusplus) 800 } 801 #endif 802 803 #endif 804
