xf86drm.h revision 82025ec7
1/** 2 * \file xf86drm.h 3 * OS-independent header for DRM user-level library interface. 4 * 5 * \author Rickard E. (Rik) Faith <faith@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#if 1 39#include <sys/atomic.h> 40#else 41#include <sys/types.h> 42#endif 43#include <stdint.h> 44#include <drm.h> 45 46#if defined(__cplusplus) 47extern "C" { 48#endif 49 50#ifndef DRM_MAX_MINOR 51#define DRM_MAX_MINOR 16 52#endif 53 54#if defined(__linux__) 55 56#define DRM_IOCTL_NR(n) _IOC_NR(n) 57#define DRM_IOC_VOID _IOC_NONE 58#define DRM_IOC_READ _IOC_READ 59#define DRM_IOC_WRITE _IOC_WRITE 60#define DRM_IOC_READWRITE _IOC_READ|_IOC_WRITE 61#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) 62 63#else /* One of the *BSDs */ 64 65#include <sys/ioccom.h> 66#define DRM_IOCTL_NR(n) ((n) & 0xff) 67#define DRM_IOC_VOID IOC_VOID 68#define DRM_IOC_READ IOC_OUT 69#define DRM_IOC_WRITE IOC_IN 70#define DRM_IOC_READWRITE IOC_INOUT 71#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) 72 73#endif 74 75 /* Defaults, if nothing set in xf86config */ 76#define DRM_DEV_UID 0 77#define DRM_DEV_GID 0 78/* Default /dev/dri directory permissions 0755 */ 79#define DRM_DEV_DIRMODE \ 80 (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) 81#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 82 83#ifdef __OpenBSD__ 84#define DRM_DIR_NAME "/dev" 85#define DRM_PRIMARY_MINOR_NAME "drm" 86#define DRM_CONTROL_MINOR_NAME "drmC" 87#define DRM_RENDER_MINOR_NAME "drmR" 88#else 89#define DRM_DIR_NAME "/dev/dri" 90#define DRM_PRIMARY_MINOR_NAME "card" 91#define DRM_CONTROL_MINOR_NAME "controlD" 92#define DRM_RENDER_MINOR_NAME "renderD" 93#define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */ 94#endif 95 96#define DRM_DEV_NAME "%s/" DRM_PRIMARY_MINOR_NAME "%d" 97#define DRM_CONTROL_DEV_NAME "%s/" DRM_CONTROL_MINOR_NAME "%d" 98#define DRM_RENDER_DEV_NAME "%s/" DRM_RENDER_MINOR_NAME "%d" 99 100#define DRM_NODE_NAME_MAX \ 101 (sizeof(DRM_DIR_NAME) + 1 /* slash */ \ 102 + MAX3(sizeof(DRM_PRIMARY_MINOR_NAME), \ 103 sizeof(DRM_CONTROL_MINOR_NAME), \ 104 sizeof(DRM_RENDER_MINOR_NAME)) \ 105 + sizeof("144") /* highest possible node number */ \ 106 + 1) /* NULL-terminator */ 107 108#define DRM_ERR_NO_DEVICE (-1001) 109#define DRM_ERR_NO_ACCESS (-1002) 110#define DRM_ERR_NOT_ROOT (-1003) 111#define DRM_ERR_INVALID (-1004) 112#define DRM_ERR_NO_FD (-1005) 113 114#define DRM_AGP_NO_HANDLE 0 115 116typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */ 117typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */ 118 119#if (__GNUC__ >= 3) 120#define DRM_PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a))) 121#else 122#define DRM_PRINTFLIKE(f, a) 123#endif 124 125typedef struct _drmServerInfo { 126 int (*debug_print)(const char *format, va_list ap) DRM_PRINTFLIKE(1,0); 127 int (*load_module)(const char *name); 128 void (*get_perms)(gid_t *, mode_t *); 129} drmServerInfo, *drmServerInfoPtr; 130 131typedef struct drmHashEntry { 132 int fd; 133 void (*f)(int, void *, void *); 134 void *tagTable; 135} drmHashEntry; 136 137extern int drmIoctl(int fd, unsigned long request, void *arg); 138extern void *drmGetHashTable(void); 139extern drmHashEntry *drmGetEntry(int fd); 140 141/** 142 * Driver version information. 143 * 144 * \sa drmGetVersion() and drmSetVersion(). 145 */ 146typedef struct _drmVersion { 147 int version_major; /**< Major version */ 148 int version_minor; /**< Minor version */ 149 int version_patchlevel; /**< Patch level */ 150 int name_len; /**< Length of name buffer */ 151 char *name; /**< Name of driver */ 152 int date_len; /**< Length of date buffer */ 153 char *date; /**< User-space buffer to hold date */ 154 int desc_len; /**< Length of desc buffer */ 155 char *desc; /**< User-space buffer to hold desc */ 156} drmVersion, *drmVersionPtr; 157 158typedef struct _drmStats { 159 unsigned long count; /**< Number of data */ 160 struct { 161 unsigned long value; /**< Value from kernel */ 162 const char *long_format; /**< Suggested format for long_name */ 163 const char *long_name; /**< Long name for value */ 164 const char *rate_format; /**< Suggested format for rate_name */ 165 const char *rate_name; /**< Short name for value per second */ 166 int isvalue; /**< True if value (vs. counter) */ 167 const char *mult_names; /**< Multiplier names (e.g., "KGM") */ 168 int mult; /**< Multiplier value (e.g., 1024) */ 169 int verbose; /**< Suggest only in verbose output */ 170 } data[15]; 171} drmStatsT; 172 173 174 /* All of these enums *MUST* match with the 175 kernel implementation -- so do *NOT* 176 change them! (The drmlib implementation 177 will just copy the flags instead of 178 translating them.) */ 179typedef enum { 180 DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */ 181 DRM_REGISTERS = 1, /**< no caching, no core dump */ 182 DRM_SHM = 2, /**< shared, cached */ 183 DRM_AGP = 3, /**< AGP/GART */ 184 DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */ 185 DRM_CONSISTENT = 5 /**< PCI consistent */ 186} drmMapType; 187 188typedef enum { 189 DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */ 190 DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */ 191 DRM_LOCKED = 0x0004, /**< Physical pages locked */ 192 DRM_KERNEL = 0x0008, /**< Kernel requires access */ 193 DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */ 194 DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */ 195 DRM_REMOVABLE = 0x0040 /**< Removable mapping */ 196} drmMapFlags; 197 198/** 199 * \warning These values *MUST* match drm.h 200 */ 201typedef enum { 202 /** \name Flags for DMA buffer dispatch */ 203 /*@{*/ 204 DRM_DMA_BLOCK = 0x01, /**< 205 * Block until buffer dispatched. 206 * 207 * \note the buffer may not yet have been 208 * processed by the hardware -- getting a 209 * hardware lock with the hardware quiescent 210 * will ensure that the buffer has been 211 * processed. 212 */ 213 DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */ 214 DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */ 215 /*@}*/ 216 217 /** \name Flags for DMA buffer request */ 218 /*@{*/ 219 DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */ 220 DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */ 221 DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */ 222 /*@}*/ 223} drmDMAFlags; 224 225typedef enum { 226 DRM_PAGE_ALIGN = 0x01, 227 DRM_AGP_BUFFER = 0x02, 228 DRM_SG_BUFFER = 0x04, 229 DRM_FB_BUFFER = 0x08, 230 DRM_PCI_BUFFER_RO = 0x10 231} drmBufDescFlags; 232 233typedef enum { 234 DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */ 235 DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */ 236 DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */ 237 DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */ 238 /* These *HALT* flags aren't supported yet 239 -- they will be used to support the 240 full-screen DGA-like mode. */ 241 DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */ 242 DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */ 243} drmLockFlags; 244 245typedef enum { 246 DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and 247 never swapped. */ 248 DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */ 249} drm_context_tFlags, *drm_context_tFlagsPtr; 250 251typedef struct _drmBufDesc { 252 int count; /**< Number of buffers of this size */ 253 int size; /**< Size in bytes */ 254 int low_mark; /**< Low water mark */ 255 int high_mark; /**< High water mark */ 256} drmBufDesc, *drmBufDescPtr; 257 258typedef struct _drmBufInfo { 259 int count; /**< Number of buffers described in list */ 260 drmBufDescPtr list; /**< List of buffer descriptions */ 261} drmBufInfo, *drmBufInfoPtr; 262 263typedef struct _drmBuf { 264 int idx; /**< Index into the master buffer list */ 265 int total; /**< Buffer size */ 266 int used; /**< Amount of buffer in use (for DMA) */ 267 drmAddress address; /**< Address */ 268} drmBuf, *drmBufPtr; 269 270/** 271 * Buffer mapping information. 272 * 273 * Used by drmMapBufs() and drmUnmapBufs() to store information about the 274 * mapped buffers. 275 */ 276typedef struct _drmBufMap { 277 int count; /**< Number of buffers mapped */ 278 drmBufPtr list; /**< Buffers */ 279} drmBufMap, *drmBufMapPtr; 280 281typedef struct _drmLock { 282 volatile unsigned int lock; 283 char padding[60]; 284 /* This is big enough for most current (and future?) architectures: 285 DEC Alpha: 32 bytes 286 Intel Merced: ? 287 Intel P5/PPro/PII/PIII: 32 bytes 288 Intel StrongARM: 32 bytes 289 Intel i386/i486: 16 bytes 290 MIPS: 32 bytes (?) 291 Motorola 68k: 16 bytes 292 Motorola PowerPC: 32 bytes 293 Sun SPARC: 32 bytes 294 */ 295} drmLock, *drmLockPtr; 296 297/** 298 * Indices here refer to the offset into 299 * list in drmBufInfo 300 */ 301typedef struct _drmDMAReq { 302 drm_context_t context; /**< Context handle */ 303 int send_count; /**< Number of buffers to send */ 304 int *send_list; /**< List of handles to buffers */ 305 int *send_sizes; /**< Lengths of data to send, in bytes */ 306 drmDMAFlags flags; /**< Flags */ 307 int request_count; /**< Number of buffers requested */ 308 int request_size; /**< Desired size of buffers requested */ 309 int *request_list; /**< Buffer information */ 310 int *request_sizes; /**< Minimum acceptable sizes */ 311 int granted_count; /**< Number of buffers granted at this size */ 312} drmDMAReq, *drmDMAReqPtr; 313 314typedef struct _drmRegion { 315 drm_handle_t handle; 316 unsigned int offset; 317 drmSize size; 318 drmAddress map; 319} drmRegion, *drmRegionPtr; 320 321typedef struct _drmTextureRegion { 322 unsigned char next; 323 unsigned char prev; 324 unsigned char in_use; 325 unsigned char padding; /**< Explicitly pad this out */ 326 unsigned int age; 327} drmTextureRegion, *drmTextureRegionPtr; 328 329 330typedef enum { 331 DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ 332 DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ 333 /* bits 1-6 are reserved for high crtcs */ 334 DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e, 335 DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */ 336 DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ 337 DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ 338 DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ 339 DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */ 340} drmVBlankSeqType; 341#define DRM_VBLANK_HIGH_CRTC_SHIFT 1 342 343typedef struct _drmVBlankReq { 344 drmVBlankSeqType type; 345 unsigned int sequence; 346 unsigned long signal; 347} drmVBlankReq, *drmVBlankReqPtr; 348 349typedef struct _drmVBlankReply { 350 drmVBlankSeqType type; 351 unsigned int sequence; 352 long tval_sec; 353 long tval_usec; 354} drmVBlankReply, *drmVBlankReplyPtr; 355 356typedef union _drmVBlank { 357 drmVBlankReq request; 358 drmVBlankReply reply; 359} drmVBlank, *drmVBlankPtr; 360 361typedef struct _drmSetVersion { 362 int drm_di_major; 363 int drm_di_minor; 364 int drm_dd_major; 365 int drm_dd_minor; 366} drmSetVersion, *drmSetVersionPtr; 367 368#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock) 369 370#define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */ 371#define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */ 372 373#if 1 374 375#define DRM_CAS(lock, old, new, __ret) \ 376 (__ret = atomic_cas_uint(&__drm_dummy_lock(lock), (old), (new)) != (old)); 377 378#elif defined(__GNUC__) && (__GNUC__ >= 2) 379# if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__) 380 /* Reflect changes here to drmP.h */ 381#define DRM_CAS(lock,old,new,__ret) \ 382 do { \ 383 int __dummy; /* Can't mark eax as clobbered */ \ 384 __asm__ __volatile__( \ 385 "lock ; cmpxchg %4,%1\n\t" \ 386 "setnz %0" \ 387 : "=d" (__ret), \ 388 "=m" (__drm_dummy_lock(lock)), \ 389 "=a" (__dummy) \ 390 : "2" (old), \ 391 "r" (new)); \ 392 } while (0) 393 394#elif defined(__alpha__) 395 396#define DRM_CAS(lock, old, new, ret) \ 397 do { \ 398 int tmp, old32; \ 399 __asm__ __volatile__( \ 400 " addl $31, %5, %3\n" \ 401 "1: ldl_l %0, %2\n" \ 402 " cmpeq %0, %3, %1\n" \ 403 " beq %1, 2f\n" \ 404 " mov %4, %0\n" \ 405 " stl_c %0, %2\n" \ 406 " beq %0, 3f\n" \ 407 " mb\n" \ 408 "2: cmpeq %1, 0, %1\n" \ 409 ".subsection 2\n" \ 410 "3: br 1b\n" \ 411 ".previous" \ 412 : "=&r"(tmp), "=&r"(ret), \ 413 "=m"(__drm_dummy_lock(lock)), \ 414 "=&r"(old32) \ 415 : "r"(new), "r"(old) \ 416 : "memory"); \ 417 } while (0) 418 419#elif defined(__sparc__) 420 421#define DRM_CAS(lock,old,new,__ret) \ 422do { register unsigned int __old __asm("o0"); \ 423 register unsigned int __new __asm("o1"); \ 424 register volatile unsigned int *__lock __asm("o2"); \ 425 __old = old; \ 426 __new = new; \ 427 __lock = (volatile unsigned int *)lock; \ 428 __asm__ __volatile__( \ 429 /*"cas [%2], %3, %0"*/ \ 430 ".word 0xd3e29008\n\t" \ 431 /*"membar #StoreStore | #StoreLoad"*/ \ 432 ".word 0x8143e00a" \ 433 : "=&r" (__new) \ 434 : "0" (__new), \ 435 "r" (__lock), \ 436 "r" (__old) \ 437 : "memory"); \ 438 __ret = (__new != __old); \ 439} while(0) 440 441#elif defined(__ia64__) 442 443#ifdef __INTEL_COMPILER 444/* this currently generates bad code (missing stop bits)... */ 445#include <ia64intrin.h> 446 447#define DRM_CAS(lock,old,new,__ret) \ 448 do { \ 449 unsigned long __result, __old = (old) & 0xffffffff; \ 450 __mf(); \ 451 __result = _InterlockedCompareExchange_acq(&__drm_dummy_lock(lock), (new), __old);\ 452 __ret = (__result) != (__old); \ 453/* __ret = (__sync_val_compare_and_swap(&__drm_dummy_lock(lock), \ 454 (old), (new)) \ 455 != (old)); */\ 456 } while (0) 457 458#else 459#define DRM_CAS(lock,old,new,__ret) \ 460 do { \ 461 unsigned int __result, __old = (old); \ 462 __asm__ __volatile__( \ 463 "mf\n" \ 464 "mov ar.ccv=%2\n" \ 465 ";;\n" \ 466 "cmpxchg4.acq %0=%1,%3,ar.ccv" \ 467 : "=r" (__result), "=m" (__drm_dummy_lock(lock)) \ 468 : "r" ((unsigned long)__old), "r" (new) \ 469 : "memory"); \ 470 __ret = (__result) != (__old); \ 471 } while (0) 472 473#endif 474 475#elif defined(__powerpc__) 476 477#define DRM_CAS(lock,old,new,__ret) \ 478 do { \ 479 __asm__ __volatile__( \ 480 "sync;" \ 481 "0: lwarx %0,0,%1;" \ 482 " xor. %0,%3,%0;" \ 483 " bne 1f;" \ 484 " stwcx. %2,0,%1;" \ 485 " bne- 0b;" \ 486 "1: " \ 487 "sync;" \ 488 : "=&r"(__ret) \ 489 : "r"(lock), "r"(new), "r"(old) \ 490 : "cr0", "memory"); \ 491 } while (0) 492 493#endif /* architecture */ 494#endif /* __GNUC__ >= 2 */ 495 496#ifndef DRM_CAS 497#define DRM_CAS(lock,old,new,ret) do { ret=1; } while (0) /* FAST LOCK FAILS */ 498#endif 499 500#if defined(__alpha__) 501#define DRM_CAS_RESULT(_result) long _result 502#elif defined(__powerpc__) 503#define DRM_CAS_RESULT(_result) int _result 504#else 505#define DRM_CAS_RESULT(_result) char _result 506#endif 507 508#define DRM_LIGHT_LOCK(fd,lock,context) \ 509 do { \ 510 DRM_CAS_RESULT(__ret); \ 511 DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ 512 if (__ret) drmGetLock(fd,context,0); \ 513 } while(0) 514 515 /* This one counts fast locks -- for 516 benchmarking only. */ 517#define DRM_LIGHT_LOCK_COUNT(fd,lock,context,count) \ 518 do { \ 519 DRM_CAS_RESULT(__ret); \ 520 DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ 521 if (__ret) drmGetLock(fd,context,0); \ 522 else ++count; \ 523 } while(0) 524 525#define DRM_LOCK(fd,lock,context,flags) \ 526 do { \ 527 if (flags) drmGetLock(fd,context,flags); \ 528 else DRM_LIGHT_LOCK(fd,lock,context); \ 529 } while(0) 530 531#define DRM_UNLOCK(fd,lock,context) \ 532 do { \ 533 DRM_CAS_RESULT(__ret); \ 534 DRM_CAS(lock,DRM_LOCK_HELD|context,context,__ret); \ 535 if (__ret) drmUnlock(fd,context); \ 536 } while(0) 537 538 /* Simple spin locks */ 539#define DRM_SPINLOCK(spin,val) \ 540 do { \ 541 DRM_CAS_RESULT(__ret); \ 542 do { \ 543 DRM_CAS(spin,0,val,__ret); \ 544 if (__ret) while ((spin)->lock); \ 545 } while (__ret); \ 546 } while(0) 547 548#define DRM_SPINLOCK_TAKE(spin,val) \ 549 do { \ 550 DRM_CAS_RESULT(__ret); \ 551 int cur; \ 552 do { \ 553 cur = (*spin).lock; \ 554 DRM_CAS(spin,cur,val,__ret); \ 555 } while (__ret); \ 556 } while(0) 557 558#define DRM_SPINLOCK_COUNT(spin,val,count,__ret) \ 559 do { \ 560 int __i; \ 561 __ret = 1; \ 562 for (__i = 0; __ret && __i < count; __i++) { \ 563 DRM_CAS(spin,0,val,__ret); \ 564 if (__ret) for (;__i < count && (spin)->lock; __i++); \ 565 } \ 566 } while(0) 567 568#define DRM_SPINUNLOCK(spin,val) \ 569 do { \ 570 DRM_CAS_RESULT(__ret); \ 571 if ((*spin).lock == val) { /* else server stole lock */ \ 572 do { \ 573 DRM_CAS(spin,val,0,__ret); \ 574 } while (__ret); \ 575 } \ 576 } while(0) 577 578 579 580/* General user-level programmer's API: unprivileged */ 581extern int drmAvailable(void); 582extern int drmOpen(const char *name, const char *busid); 583 584#define DRM_NODE_PRIMARY 0 585#define DRM_NODE_CONTROL 1 586#define DRM_NODE_RENDER 2 587#define DRM_NODE_MAX 3 588 589extern int drmOpenWithType(const char *name, const char *busid, 590 int type); 591 592extern int drmOpenControl(int minor); 593extern int drmOpenRender(int minor); 594extern int drmClose(int fd); 595extern drmVersionPtr drmGetVersion(int fd); 596extern drmVersionPtr drmGetLibVersion(int fd); 597extern int drmGetCap(int fd, uint64_t capability, uint64_t *value); 598extern void drmFreeVersion(drmVersionPtr); 599extern int drmGetMagic(int fd, drm_magic_t * magic); 600extern char *drmGetBusid(int fd); 601extern int drmGetInterruptFromBusID(int fd, int busnum, int devnum, 602 int funcnum); 603extern int drmGetMap(int fd, int idx, drm_handle_t *offset, 604 drmSize *size, drmMapType *type, 605 drmMapFlags *flags, drm_handle_t *handle, 606 int *mtrr); 607extern int drmGetClient(int fd, int idx, int *auth, int *pid, 608 int *uid, unsigned long *magic, 609 unsigned long *iocs); 610extern int drmGetStats(int fd, drmStatsT *stats); 611extern int drmSetInterfaceVersion(int fd, drmSetVersion *version); 612extern int drmCommandNone(int fd, unsigned long drmCommandIndex); 613extern int drmCommandRead(int fd, unsigned long drmCommandIndex, 614 void *data, unsigned long size); 615extern int drmCommandWrite(int fd, unsigned long drmCommandIndex, 616 void *data, unsigned long size); 617extern int drmCommandWriteRead(int fd, unsigned long drmCommandIndex, 618 void *data, unsigned long size); 619 620/* General user-level programmer's API: X server (root) only */ 621extern void drmFreeBusid(const char *busid); 622extern int drmSetBusid(int fd, const char *busid); 623extern int drmAuthMagic(int fd, drm_magic_t magic); 624extern int drmAddMap(int fd, 625 drm_handle_t offset, 626 drmSize size, 627 drmMapType type, 628 drmMapFlags flags, 629 drm_handle_t * handle); 630extern int drmRmMap(int fd, drm_handle_t handle); 631extern int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id, 632 drm_handle_t handle); 633 634extern int drmAddBufs(int fd, int count, int size, 635 drmBufDescFlags flags, 636 int agp_offset); 637extern int drmMarkBufs(int fd, double low, double high); 638extern int drmCreateContext(int fd, drm_context_t * handle); 639extern int drmSetContextFlags(int fd, drm_context_t context, 640 drm_context_tFlags flags); 641extern int drmGetContextFlags(int fd, drm_context_t context, 642 drm_context_tFlagsPtr flags); 643extern int drmAddContextTag(int fd, drm_context_t context, void *tag); 644extern int drmDelContextTag(int fd, drm_context_t context); 645extern void *drmGetContextTag(int fd, drm_context_t context); 646extern drm_context_t * drmGetReservedContextList(int fd, int *count); 647extern void drmFreeReservedContextList(drm_context_t *); 648extern int drmSwitchToContext(int fd, drm_context_t context); 649extern int drmDestroyContext(int fd, drm_context_t handle); 650extern int drmCreateDrawable(int fd, drm_drawable_t * handle); 651extern int drmDestroyDrawable(int fd, drm_drawable_t handle); 652extern int drmUpdateDrawableInfo(int fd, drm_drawable_t handle, 653 drm_drawable_info_type_t type, 654 unsigned int num, void *data); 655extern int drmCtlInstHandler(int fd, int irq); 656extern int drmCtlUninstHandler(int fd); 657extern int drmSetClientCap(int fd, uint64_t capability, 658 uint64_t value); 659 660extern int drmCrtcGetSequence(int fd, uint32_t crtcId, 661 uint64_t *sequence, uint64_t *ns); 662extern int drmCrtcQueueSequence(int fd, uint32_t crtcId, 663 uint32_t flags, uint64_t sequence, 664 uint64_t *sequence_queued, 665 uint64_t user_data); 666/* General user-level programmer's API: authenticated client and/or X */ 667extern int drmMap(int fd, 668 drm_handle_t handle, 669 drmSize size, 670 drmAddressPtr address); 671extern int drmUnmap(drmAddress address, drmSize size); 672extern drmBufInfoPtr drmGetBufInfo(int fd); 673extern drmBufMapPtr drmMapBufs(int fd); 674extern int drmUnmapBufs(drmBufMapPtr bufs); 675extern int drmDMA(int fd, drmDMAReqPtr request); 676extern int drmFreeBufs(int fd, int count, int *list); 677extern int drmGetLock(int fd, 678 drm_context_t context, 679 drmLockFlags flags); 680extern int drmUnlock(int fd, drm_context_t context); 681extern int drmFinish(int fd, int context, drmLockFlags flags); 682extern int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id, 683 drm_handle_t * handle); 684 685/* AGP/GART support: X server (root) only */ 686extern int drmAgpAcquire(int fd); 687extern int drmAgpRelease(int fd); 688extern int drmAgpEnable(int fd, unsigned long mode); 689extern int drmAgpAlloc(int fd, unsigned long size, 690 unsigned long type, unsigned long *address, 691 drm_handle_t *handle); 692extern int drmAgpFree(int fd, drm_handle_t handle); 693extern int drmAgpBind(int fd, drm_handle_t handle, 694 unsigned long offset); 695extern int drmAgpUnbind(int fd, drm_handle_t handle); 696 697/* AGP/GART info: authenticated client and/or X */ 698extern int drmAgpVersionMajor(int fd); 699extern int drmAgpVersionMinor(int fd); 700extern unsigned long drmAgpGetMode(int fd); 701extern unsigned long drmAgpBase(int fd); /* Physical location */ 702extern unsigned long drmAgpSize(int fd); /* Bytes */ 703extern unsigned long drmAgpMemoryUsed(int fd); 704extern unsigned long drmAgpMemoryAvail(int fd); 705extern unsigned int drmAgpVendorId(int fd); 706extern unsigned int drmAgpDeviceId(int fd); 707 708/* PCI scatter/gather support: X server (root) only */ 709extern int drmScatterGatherAlloc(int fd, unsigned long size, 710 drm_handle_t *handle); 711extern int drmScatterGatherFree(int fd, drm_handle_t handle); 712 713extern int drmWaitVBlank(int fd, drmVBlankPtr vbl); 714 715/* Support routines */ 716extern void drmSetServerInfo(drmServerInfoPtr info); 717extern int drmError(int err, const char *label); 718extern void *drmMalloc(int size); 719extern void drmFree(void *pt); 720 721/* Hash table routines */ 722extern void *drmHashCreate(void); 723extern int drmHashDestroy(void *t); 724extern int drmHashLookup(void *t, unsigned long key, void **value); 725extern int drmHashInsert(void *t, unsigned long key, void *value); 726extern int drmHashDelete(void *t, unsigned long key); 727extern int drmHashFirst(void *t, unsigned long *key, void **value); 728extern int drmHashNext(void *t, unsigned long *key, void **value); 729 730/* PRNG routines */ 731extern void *drmRandomCreate(unsigned long seed); 732extern int drmRandomDestroy(void *state); 733extern unsigned long drmRandom(void *state); 734extern double drmRandomDouble(void *state); 735 736/* Skip list routines */ 737 738extern void *drmSLCreate(void); 739extern int drmSLDestroy(void *l); 740extern int drmSLLookup(void *l, unsigned long key, void **value); 741extern int drmSLInsert(void *l, unsigned long key, void *value); 742extern int drmSLDelete(void *l, unsigned long key); 743extern int drmSLNext(void *l, unsigned long *key, void **value); 744extern int drmSLFirst(void *l, unsigned long *key, void **value); 745extern void drmSLDump(void *l); 746extern int drmSLLookupNeighbors(void *l, unsigned long key, 747 unsigned long *prev_key, void **prev_value, 748 unsigned long *next_key, void **next_value); 749 750extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened); 751extern int drmOpenOnceWithType(const char *BusID, int *newlyopened, int type); 752extern void drmCloseOnce(int fd); 753extern void drmMsg(const char *format, ...) DRM_PRINTFLIKE(1, 2); 754 755extern int drmSetMaster(int fd); 756extern int drmDropMaster(int fd); 757extern int drmIsMaster(int fd); 758 759#define DRM_EVENT_CONTEXT_VERSION 4 760 761typedef struct _drmEventContext { 762 763 /* This struct is versioned so we can add more pointers if we 764 * add more events. */ 765 int version; 766 767 void (*vblank_handler)(int fd, 768 unsigned int sequence, 769 unsigned int tv_sec, 770 unsigned int tv_usec, 771 void *user_data); 772 773 void (*page_flip_handler)(int fd, 774 unsigned int sequence, 775 unsigned int tv_sec, 776 unsigned int tv_usec, 777 void *user_data); 778 779 void (*page_flip_handler2)(int fd, 780 unsigned int sequence, 781 unsigned int tv_sec, 782 unsigned int tv_usec, 783 unsigned int crtc_id, 784 void *user_data); 785 786 void (*sequence_handler)(int fd, 787 uint64_t sequence, 788 uint64_t ns, 789 uint64_t user_data); 790} drmEventContext, *drmEventContextPtr; 791 792extern int drmHandleEvent(int fd, drmEventContextPtr evctx); 793 794extern char *drmGetDeviceNameFromFd(int fd); 795 796/* Improved version of drmGetDeviceNameFromFd which attributes for any type of 797 * device/node - card, control or renderD. 798 */ 799extern char *drmGetDeviceNameFromFd2(int fd); 800extern int drmGetNodeTypeFromFd(int fd); 801 802extern int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int *prime_fd); 803extern int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t *handle); 804 805extern char *drmGetPrimaryDeviceNameFromFd(int fd); 806extern char *drmGetRenderDeviceNameFromFd(int fd); 807 808#define DRM_BUS_PCI 0 809#define DRM_BUS_USB 1 810#define DRM_BUS_PLATFORM 2 811#define DRM_BUS_HOST1X 3 812 813typedef struct _drmPciBusInfo { 814 uint16_t domain; 815 uint8_t bus; 816 uint8_t dev; 817 uint8_t func; 818} drmPciBusInfo, *drmPciBusInfoPtr; 819 820typedef struct _drmPciDeviceInfo { 821 uint16_t vendor_id; 822 uint16_t device_id; 823 uint16_t subvendor_id; 824 uint16_t subdevice_id; 825 uint8_t revision_id; 826} drmPciDeviceInfo, *drmPciDeviceInfoPtr; 827 828typedef struct _drmUsbBusInfo { 829 uint8_t bus; 830 uint8_t dev; 831} drmUsbBusInfo, *drmUsbBusInfoPtr; 832 833typedef struct _drmUsbDeviceInfo { 834 uint16_t vendor; 835 uint16_t product; 836} drmUsbDeviceInfo, *drmUsbDeviceInfoPtr; 837 838#define DRM_PLATFORM_DEVICE_NAME_LEN 512 839 840typedef struct _drmPlatformBusInfo { 841 char fullname[DRM_PLATFORM_DEVICE_NAME_LEN]; 842} drmPlatformBusInfo, *drmPlatformBusInfoPtr; 843 844typedef struct _drmPlatformDeviceInfo { 845 char **compatible; /* NULL terminated list of compatible strings */ 846} drmPlatformDeviceInfo, *drmPlatformDeviceInfoPtr; 847 848#define DRM_HOST1X_DEVICE_NAME_LEN 512 849 850typedef struct _drmHost1xBusInfo { 851 char fullname[DRM_HOST1X_DEVICE_NAME_LEN]; 852} drmHost1xBusInfo, *drmHost1xBusInfoPtr; 853 854typedef struct _drmHost1xDeviceInfo { 855 char **compatible; /* NULL terminated list of compatible strings */ 856} drmHost1xDeviceInfo, *drmHost1xDeviceInfoPtr; 857 858typedef struct _drmDevice { 859 char **nodes; /* DRM_NODE_MAX sized array */ 860 int available_nodes; /* DRM_NODE_* bitmask */ 861 int bustype; 862 union { 863 drmPciBusInfoPtr pci; 864 drmUsbBusInfoPtr usb; 865 drmPlatformBusInfoPtr platform; 866 drmHost1xBusInfoPtr host1x; 867 } businfo; 868 union { 869 drmPciDeviceInfoPtr pci; 870 drmUsbDeviceInfoPtr usb; 871 drmPlatformDeviceInfoPtr platform; 872 drmHost1xDeviceInfoPtr host1x; 873 } deviceinfo; 874} drmDevice, *drmDevicePtr; 875 876extern int drmGetDevice(int fd, drmDevicePtr *device); 877extern void drmFreeDevice(drmDevicePtr *device); 878 879extern int drmGetDevices(drmDevicePtr devices[], int max_devices); 880extern void drmFreeDevices(drmDevicePtr devices[], int count); 881 882#define DRM_DEVICE_GET_PCI_REVISION (1 << 0) 883extern int drmGetDevice2(int fd, uint32_t flags, drmDevicePtr *device); 884extern int drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_devices); 885 886extern int drmDevicesEqual(drmDevicePtr a, drmDevicePtr b); 887 888extern int drmSyncobjCreate(int fd, uint32_t flags, uint32_t *handle); 889extern int drmSyncobjDestroy(int fd, uint32_t handle); 890extern int drmSyncobjHandleToFD(int fd, uint32_t handle, int *obj_fd); 891extern int drmSyncobjFDToHandle(int fd, int obj_fd, uint32_t *handle); 892 893extern int drmSyncobjImportSyncFile(int fd, uint32_t handle, int sync_file_fd); 894extern int drmSyncobjExportSyncFile(int fd, uint32_t handle, int *sync_file_fd); 895extern int drmSyncobjWait(int fd, uint32_t *handles, unsigned num_handles, 896 int64_t timeout_nsec, unsigned flags, 897 uint32_t *first_signaled); 898extern int drmSyncobjReset(int fd, const uint32_t *handles, uint32_t handle_count); 899extern int drmSyncobjSignal(int fd, const uint32_t *handles, uint32_t handle_count); 900extern int drmSyncobjTimelineSignal(int fd, const uint32_t *handles, 901 uint64_t *points, uint32_t handle_count); 902extern int drmSyncobjTimelineWait(int fd, uint32_t *handles, uint64_t *points, 903 unsigned num_handles, 904 int64_t timeout_nsec, unsigned flags, 905 uint32_t *first_signaled); 906extern int drmSyncobjQuery(int fd, uint32_t *handles, uint64_t *points, 907 uint32_t handle_count); 908extern int drmSyncobjTransfer(int fd, 909 uint32_t dst_handle, uint64_t dst_point, 910 uint32_t src_handle, uint64_t src_point, 911 uint32_t flags); 912 913#if defined(__cplusplus) 914} 915#endif 916 917#endif 918