3 * OS-independent header for DRM user-level library interface.
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
9 * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
10 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
11 * All Rights Reserved.
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:
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
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.
38 #include <sys/types.h>
42 #if defined(__cplusplus)
47 #define DRM_MAX_MINOR 16
50 #if defined(__linux__)
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)
59 #else /* One of the *BSDs */
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)
71 /* Defaults, if nothing set in xf86config */
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)
80 #define DRM_DIR_NAME "/dev"
81 #define DRM_PRIMARY_MINOR_NAME "drm"
82 #define DRM_CONTROL_MINOR_NAME "drmC"
83 #define DRM_RENDER_MINOR_NAME "drmR"
85 #define DRM_DIR_NAME "/dev/dri"
86 #define DRM_PRIMARY_MINOR_NAME "card"
87 #define DRM_CONTROL_MINOR_NAME "controlD"
88 #define DRM_RENDER_MINOR_NAME "renderD"
89 #define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */
92 #define DRM_DEV_NAME "%s/" DRM_PRIMARY_MINOR_NAME "%d"
93 #define DRM_CONTROL_DEV_NAME "%s/" DRM_CONTROL_MINOR_NAME "%d"
94 #define DRM_RENDER_DEV_NAME "%s/" DRM_RENDER_MINOR_NAME "%d"
96 #define DRM_NODE_NAME_MAX \
97 (sizeof(DRM_DIR_NAME) + 1 /* slash */ \
98 + MAX3(sizeof(DRM_PRIMARY_MINOR_NAME), \
99 sizeof(DRM_CONTROL_MINOR_NAME), \
100 sizeof(DRM_RENDER_MINOR_NAME)) \
101 + sizeof("144") /* highest possible node number */ \
102 + 1) /* NULL-terminator */
104 #define DRM_ERR_NO_DEVICE (-1001)
105 #define DRM_ERR_NO_ACCESS (-1002)
106 #define DRM_ERR_NOT_ROOT (-1003)
107 #define DRM_ERR_INVALID (-1004)
108 #define DRM_ERR_NO_FD (-1005)
110 #define DRM_AGP_NO_HANDLE 0
112 typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */
113 typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */
116 #define DRM_PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a)))
118 #define DRM_PRINTFLIKE(f, a)
121 typedef struct _drmServerInfo {
122 int (*debug_print)(const char *format, va_list ap) DRM_PRINTFLIKE(1,0);
123 int (*load_module)(const char *name);
124 void (*get_perms)(gid_t *, mode_t *);
125 } drmServerInfo, *drmServerInfoPtr;
127 typedef struct drmHashEntry {
129 void (*f)(int, void *, void *);
133 extern int drmIoctl(int fd, unsigned long request, void *arg);
134 extern void *drmGetHashTable(void);
135 extern drmHashEntry *drmGetEntry(int fd);
138 * Driver version information.
140 * \sa drmGetVersion() and drmSetVersion().
142 typedef struct _drmVersion {
143 int version_major; /**< Major version */
144 int version_minor; /**< Minor version */
145 int version_patchlevel; /**< Patch level */
146 int name_len; /**< Length of name buffer */
147 char *name; /**< Name of driver */
148 int date_len; /**< Length of date buffer */
149 char *date; /**< User-space buffer to hold date */
150 int desc_len; /**< Length of desc buffer */
151 char *desc; /**< User-space buffer to hold desc */
152 } drmVersion, *drmVersionPtr;
154 typedef struct _drmStats {
155 unsigned long count; /**< Number of data */
157 unsigned long value; /**< Value from kernel */
158 const char *long_format; /**< Suggested format for long_name */
159 const char *long_name; /**< Long name for value */
160 const char *rate_format; /**< Suggested format for rate_name */
161 const char *rate_name; /**< Short name for value per second */
162 int isvalue; /**< True if value (vs. counter) */
163 const char *mult_names; /**< Multiplier names (e.g., "KGM") */
164 int mult; /**< Multiplier value (e.g., 1024) */
165 int verbose; /**< Suggest only in verbose output */
170 /* All of these enums *MUST* match with the
171 kernel implementation -- so do *NOT*
172 change them! (The drmlib implementation
173 will just copy the flags instead of
174 translating them.) */
176 DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */
177 DRM_REGISTERS = 1, /**< no caching, no core dump */
178 DRM_SHM = 2, /**< shared, cached */
179 DRM_AGP = 3, /**< AGP/GART */
180 DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */
181 DRM_CONSISTENT = 5 /**< PCI consistent */
185 DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */
186 DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */
187 DRM_LOCKED = 0x0004, /**< Physical pages locked */
188 DRM_KERNEL = 0x0008, /**< Kernel requires access */
189 DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */
190 DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */
191 DRM_REMOVABLE = 0x0040 /**< Removable mapping */
195 * \warning These values *MUST* match drm.h
198 /** \name Flags for DMA buffer dispatch */
200 DRM_DMA_BLOCK = 0x01, /**<
201 * Block until buffer dispatched.
203 * \note the buffer may not yet have been
204 * processed by the hardware -- getting a
205 * hardware lock with the hardware quiescent
206 * will ensure that the buffer has been
209 DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */
210 DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */
213 /** \name Flags for DMA buffer request */
215 DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */
216 DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */
217 DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */
222 DRM_PAGE_ALIGN = 0x01,
223 DRM_AGP_BUFFER = 0x02,
224 DRM_SG_BUFFER = 0x04,
225 DRM_FB_BUFFER = 0x08,
226 DRM_PCI_BUFFER_RO = 0x10
230 DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */
231 DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */
232 DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */
233 DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */
234 /* These *HALT* flags aren't supported yet
235 -- they will be used to support the
236 full-screen DGA-like mode. */
237 DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */
238 DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */
242 DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and
244 DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */
245 } drm_context_tFlags, *drm_context_tFlagsPtr;
247 typedef struct _drmBufDesc {
248 int count; /**< Number of buffers of this size */
249 int size; /**< Size in bytes */
250 int low_mark; /**< Low water mark */
251 int high_mark; /**< High water mark */
252 } drmBufDesc, *drmBufDescPtr;
254 typedef struct _drmBufInfo {
255 int count; /**< Number of buffers described in list */
256 drmBufDescPtr list; /**< List of buffer descriptions */
257 } drmBufInfo, *drmBufInfoPtr;
259 typedef struct _drmBuf {
260 int idx; /**< Index into the master buffer list */
261 int total; /**< Buffer size */
262 int used; /**< Amount of buffer in use (for DMA) */
263 drmAddress address; /**< Address */
264 } drmBuf, *drmBufPtr;
267 * Buffer mapping information.
269 * Used by drmMapBufs() and drmUnmapBufs() to store information about the
272 typedef struct _drmBufMap {
273 int count; /**< Number of buffers mapped */
274 drmBufPtr list; /**< Buffers */
275 } drmBufMap, *drmBufMapPtr;
277 typedef struct _drmLock {
278 volatile unsigned int lock;
280 /* This is big enough for most current (and future?) architectures:
283 Intel P5/PPro/PII/PIII: 32 bytes
284 Intel StrongARM: 32 bytes
285 Intel i386/i486: 16 bytes
287 Motorola 68k: 16 bytes
288 Motorola PowerPC: 32 bytes
291 } drmLock, *drmLockPtr;
294 * Indices here refer to the offset into
297 typedef struct _drmDMAReq {
298 drm_context_t context; /**< Context handle */
299 int send_count; /**< Number of buffers to send */
300 int *send_list; /**< List of handles to buffers */
301 int *send_sizes; /**< Lengths of data to send, in bytes */
302 drmDMAFlags flags; /**< Flags */
303 int request_count; /**< Number of buffers requested */
304 int request_size; /**< Desired size of buffers requested */
305 int *request_list; /**< Buffer information */
306 int *request_sizes; /**< Minimum acceptable sizes */
307 int granted_count; /**< Number of buffers granted at this size */
308 } drmDMAReq, *drmDMAReqPtr;
310 typedef struct _drmRegion {
315 } drmRegion, *drmRegionPtr;
317 typedef struct _drmTextureRegion {
320 unsigned char in_use;
321 unsigned char padding; /**< Explicitly pad this out */
323 } drmTextureRegion, *drmTextureRegionPtr;
327 DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
328 DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
329 /* bits 1-6 are reserved for high crtcs */
330 DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e,
331 DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */
332 DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */
333 DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */
334 DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
335 DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */
337 #define DRM_VBLANK_HIGH_CRTC_SHIFT 1
339 typedef struct _drmVBlankReq {
340 drmVBlankSeqType type;
341 unsigned int sequence;
342 unsigned long signal;
343 } drmVBlankReq, *drmVBlankReqPtr;
345 typedef struct _drmVBlankReply {
346 drmVBlankSeqType type;
347 unsigned int sequence;
350 } drmVBlankReply, *drmVBlankReplyPtr;
352 typedef union _drmVBlank {
353 drmVBlankReq request;
354 drmVBlankReply reply;
355 } drmVBlank, *drmVBlankPtr;
357 typedef struct _drmSetVersion {
362 } drmSetVersion, *drmSetVersionPtr;
364 #define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
366 #define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */
367 #define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */
369 #if defined(__GNUC__) && (__GNUC__ >= 2)
370 # if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__)
371 /* Reflect changes here to drmP.h */
372 #define DRM_CAS(lock,old,new,__ret) \
374 int __dummy; /* Can't mark eax as clobbered */ \
375 __asm__ __volatile__( \
376 "lock ; cmpxchg %4,%1\n\t" \
379 "=m" (__drm_dummy_lock(lock)), \
385 #elif defined(__alpha__)
387 #define DRM_CAS(lock, old, new, ret) \
390 __asm__ __volatile__( \
391 " addl $31, %5, %3\n" \
392 "1: ldl_l %0, %2\n" \
393 " cmpeq %0, %3, %1\n" \
399 "2: cmpeq %1, 0, %1\n" \
403 : "=&r"(tmp), "=&r"(ret), \
404 "=m"(__drm_dummy_lock(lock)), \
406 : "r"(new), "r"(old) \
410 #elif defined(__sparc__)
412 #define DRM_CAS(lock,old,new,__ret) \
413 do { register unsigned int __old __asm("o0"); \
414 register unsigned int __new __asm("o1"); \
415 register volatile unsigned int *__lock __asm("o2"); \
418 __lock = (volatile unsigned int *)lock; \
419 __asm__ __volatile__( \
420 /*"cas [%2], %3, %0"*/ \
421 ".word 0xd3e29008\n\t" \
422 /*"membar #StoreStore | #StoreLoad"*/ \
429 __ret = (__new != __old); \
432 #elif defined(__ia64__)
434 #ifdef __INTEL_COMPILER
435 /* this currently generates bad code (missing stop bits)... */
436 #include <ia64intrin.h>
438 #define DRM_CAS(lock,old,new,__ret) \
440 unsigned long __result, __old = (old) & 0xffffffff; \
442 __result = _InterlockedCompareExchange_acq(&__drm_dummy_lock(lock), (new), __old);\
443 __ret = (__result) != (__old); \
444 /* __ret = (__sync_val_compare_and_swap(&__drm_dummy_lock(lock), \
450 #define DRM_CAS(lock,old,new,__ret) \
452 unsigned int __result, __old = (old); \
453 __asm__ __volatile__( \
457 "cmpxchg4.acq %0=%1,%3,ar.ccv" \
458 : "=r" (__result), "=m" (__drm_dummy_lock(lock)) \
459 : "r" ((unsigned long)__old), "r" (new) \
461 __ret = (__result) != (__old); \
466 #elif defined(__powerpc__)
468 #define DRM_CAS(lock,old,new,__ret) \
470 __asm__ __volatile__( \
472 "0: lwarx %0,0,%1;" \
480 : "r"(lock), "r"(new), "r"(old) \
481 : "cr0", "memory"); \
484 # elif defined (__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
485 || defined (__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) \
486 || defined (__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) \
487 || defined (__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
488 || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
489 || defined(__ARM_ARCH_7EM__)
490 /* excluding ARMv4/ARMv5 and lower (lacking ldrex/strex support) */
492 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
494 #define DRM_CAS(lock,old,new,__ret) \
496 __asm__ __volatile__ ( \
497 "1: ldrex %0, [%1]\n" \
500 " strexeq %0, %3, [%1]\n" \
503 : "r" (lock), "r" (old), "r" (new) \
507 #endif /* architecture */
508 #endif /* __GNUC__ >= 2 */
511 #define DRM_CAS(lock,old,new,ret) do { ret=1; } while (0) /* FAST LOCK FAILS */
514 #if defined(__alpha__)
515 #define DRM_CAS_RESULT(_result) long _result
516 #elif defined(__powerpc__)
517 #define DRM_CAS_RESULT(_result) int _result
519 #define DRM_CAS_RESULT(_result) char _result
522 #define DRM_LIGHT_LOCK(fd,lock,context) \
524 DRM_CAS_RESULT(__ret); \
525 DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \
526 if (__ret) drmGetLock(fd,context,0); \
529 /* This one counts fast locks -- for
530 benchmarking only. */
531 #define DRM_LIGHT_LOCK_COUNT(fd,lock,context,count) \
533 DRM_CAS_RESULT(__ret); \
534 DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \
535 if (__ret) drmGetLock(fd,context,0); \
539 #define DRM_LOCK(fd,lock,context,flags) \
541 if (flags) drmGetLock(fd,context,flags); \
542 else DRM_LIGHT_LOCK(fd,lock,context); \
545 #define DRM_UNLOCK(fd,lock,context) \
547 DRM_CAS_RESULT(__ret); \
548 DRM_CAS(lock,DRM_LOCK_HELD|context,context,__ret); \
549 if (__ret) drmUnlock(fd,context); \
552 /* Simple spin locks */
553 #define DRM_SPINLOCK(spin,val) \
555 DRM_CAS_RESULT(__ret); \
557 DRM_CAS(spin,0,val,__ret); \
558 if (__ret) while ((spin)->lock); \
562 #define DRM_SPINLOCK_TAKE(spin,val) \
564 DRM_CAS_RESULT(__ret); \
567 cur = (*spin).lock; \
568 DRM_CAS(spin,cur,val,__ret); \
572 #define DRM_SPINLOCK_COUNT(spin,val,count,__ret) \
576 for (__i = 0; __ret && __i < count; __i++) { \
577 DRM_CAS(spin,0,val,__ret); \
578 if (__ret) for (;__i < count && (spin)->lock; __i++); \
582 #define DRM_SPINUNLOCK(spin,val) \
584 DRM_CAS_RESULT(__ret); \
585 if ((*spin).lock == val) { /* else server stole lock */ \
587 DRM_CAS(spin,val,0,__ret); \
594 /* General user-level programmer's API: unprivileged */
595 extern int drmAvailable(void);
596 extern int drmOpen(const char *name, const char *busid);
598 #define DRM_NODE_PRIMARY 0
599 #define DRM_NODE_CONTROL 1
600 #define DRM_NODE_RENDER 2
601 #define DRM_NODE_MAX 3
603 extern int drmOpenWithType(const char *name, const char *busid,
606 extern int drmOpenControl(int minor);
607 extern int drmOpenRender(int minor);
608 extern int drmClose(int fd);
609 extern drmVersionPtr drmGetVersion(int fd);
610 extern drmVersionPtr drmGetLibVersion(int fd);
611 extern int drmGetCap(int fd, uint64_t capability, uint64_t *value);
612 extern void drmFreeVersion(drmVersionPtr);
613 extern int drmGetMagic(int fd, drm_magic_t * magic);
614 extern char *drmGetBusid(int fd);
615 extern int drmGetInterruptFromBusID(int fd, int busnum, int devnum,
617 extern int drmGetMap(int fd, int idx, drm_handle_t *offset,
618 drmSize *size, drmMapType *type,
619 drmMapFlags *flags, drm_handle_t *handle,
621 extern int drmGetClient(int fd, int idx, int *auth, int *pid,
622 int *uid, unsigned long *magic,
623 unsigned long *iocs);
624 extern int drmGetStats(int fd, drmStatsT *stats);
625 extern int drmSetInterfaceVersion(int fd, drmSetVersion *version);
626 extern int drmCommandNone(int fd, unsigned long drmCommandIndex);
627 extern int drmCommandRead(int fd, unsigned long drmCommandIndex,
628 void *data, unsigned long size);
629 extern int drmCommandWrite(int fd, unsigned long drmCommandIndex,
630 void *data, unsigned long size);
631 extern int drmCommandWriteRead(int fd, unsigned long drmCommandIndex,
632 void *data, unsigned long size);
634 /* General user-level programmer's API: X server (root) only */
635 extern void drmFreeBusid(const char *busid);
636 extern int drmSetBusid(int fd, const char *busid);
637 extern int drmAuthMagic(int fd, drm_magic_t magic);
638 extern int drmAddMap(int fd,
643 drm_handle_t * handle);
644 extern int drmRmMap(int fd, drm_handle_t handle);
645 extern int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id,
646 drm_handle_t handle);
648 extern int drmAddBufs(int fd, int count, int size,
649 drmBufDescFlags flags,
651 extern int drmMarkBufs(int fd, double low, double high);
652 extern int drmCreateContext(int fd, drm_context_t * handle);
653 extern int drmSetContextFlags(int fd, drm_context_t context,
654 drm_context_tFlags flags);
655 extern int drmGetContextFlags(int fd, drm_context_t context,
656 drm_context_tFlagsPtr flags);
657 extern int drmAddContextTag(int fd, drm_context_t context, void *tag);
658 extern int drmDelContextTag(int fd, drm_context_t context);
659 extern void *drmGetContextTag(int fd, drm_context_t context);
660 extern drm_context_t * drmGetReservedContextList(int fd, int *count);
661 extern void drmFreeReservedContextList(drm_context_t *);
662 extern int drmSwitchToContext(int fd, drm_context_t context);
663 extern int drmDestroyContext(int fd, drm_context_t handle);
664 extern int drmCreateDrawable(int fd, drm_drawable_t * handle);
665 extern int drmDestroyDrawable(int fd, drm_drawable_t handle);
666 extern int drmUpdateDrawableInfo(int fd, drm_drawable_t handle,
667 drm_drawable_info_type_t type,
668 unsigned int num, void *data);
669 extern int drmCtlInstHandler(int fd, int irq);
670 extern int drmCtlUninstHandler(int fd);
671 extern int drmSetClientCap(int fd, uint64_t capability,
674 extern int drmCrtcGetSequence(int fd, uint32_t crtcId,
675 uint64_t *sequence, uint64_t *ns);
676 extern int drmCrtcQueueSequence(int fd, uint32_t crtcId,
677 uint32_t flags, uint64_t sequence,
678 uint64_t *sequence_queued,
680 /* General user-level programmer's API: authenticated client and/or X */
681 extern int drmMap(int fd,
684 drmAddressPtr address);
685 extern int drmUnmap(drmAddress address, drmSize size);
686 extern drmBufInfoPtr drmGetBufInfo(int fd);
687 extern drmBufMapPtr drmMapBufs(int fd);
688 extern int drmUnmapBufs(drmBufMapPtr bufs);
689 extern int drmDMA(int fd, drmDMAReqPtr request);
690 extern int drmFreeBufs(int fd, int count, int *list);
691 extern int drmGetLock(int fd,
692 drm_context_t context,
694 extern int drmUnlock(int fd, drm_context_t context);
695 extern int drmFinish(int fd, int context, drmLockFlags flags);
696 extern int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id,
697 drm_handle_t * handle);
699 /* AGP/GART support: X server (root) only */
700 extern int drmAgpAcquire(int fd);
701 extern int drmAgpRelease(int fd);
702 extern int drmAgpEnable(int fd, unsigned long mode);
703 extern int drmAgpAlloc(int fd, unsigned long size,
704 unsigned long type, unsigned long *address,
705 drm_handle_t *handle);
706 extern int drmAgpFree(int fd, drm_handle_t handle);
707 extern int drmAgpBind(int fd, drm_handle_t handle,
708 unsigned long offset);
709 extern int drmAgpUnbind(int fd, drm_handle_t handle);
711 /* AGP/GART info: authenticated client and/or X */
712 extern int drmAgpVersionMajor(int fd);
713 extern int drmAgpVersionMinor(int fd);
714 extern unsigned long drmAgpGetMode(int fd);
715 extern unsigned long drmAgpBase(int fd); /* Physical location */
716 extern unsigned long drmAgpSize(int fd); /* Bytes */
717 extern unsigned long drmAgpMemoryUsed(int fd);
718 extern unsigned long drmAgpMemoryAvail(int fd);
719 extern unsigned int drmAgpVendorId(int fd);
720 extern unsigned int drmAgpDeviceId(int fd);
722 /* PCI scatter/gather support: X server (root) only */
723 extern int drmScatterGatherAlloc(int fd, unsigned long size,
724 drm_handle_t *handle);
725 extern int drmScatterGatherFree(int fd, drm_handle_t handle);
727 extern int drmWaitVBlank(int fd, drmVBlankPtr vbl);
729 /* Support routines */
730 extern void drmSetServerInfo(drmServerInfoPtr info);
731 extern int drmError(int err, const char *label);
732 extern void *drmMalloc(int size);
733 extern void drmFree(void *pt);
735 /* Hash table routines */
736 extern void *drmHashCreate(void);
737 extern int drmHashDestroy(void *t);
738 extern int drmHashLookup(void *t, unsigned long key, void **value);
739 extern int drmHashInsert(void *t, unsigned long key, void *value);
740 extern int drmHashDelete(void *t, unsigned long key);
741 extern int drmHashFirst(void *t, unsigned long *key, void **value);
742 extern int drmHashNext(void *t, unsigned long *key, void **value);
745 extern void *drmRandomCreate(unsigned long seed);
746 extern int drmRandomDestroy(void *state);
747 extern unsigned long drmRandom(void *state);
748 extern double drmRandomDouble(void *state);
750 /* Skip list routines */
752 extern void *drmSLCreate(void);
753 extern int drmSLDestroy(void *l);
754 extern int drmSLLookup(void *l, unsigned long key, void **value);
755 extern int drmSLInsert(void *l, unsigned long key, void *value);
756 extern int drmSLDelete(void *l, unsigned long key);
757 extern int drmSLNext(void *l, unsigned long *key, void **value);
758 extern int drmSLFirst(void *l, unsigned long *key, void **value);
759 extern void drmSLDump(void *l);
760 extern int drmSLLookupNeighbors(void *l, unsigned long key,
761 unsigned long *prev_key, void **prev_value,
762 unsigned long *next_key, void **next_value);
764 extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened);
765 extern int drmOpenOnceWithType(const char *BusID, int *newlyopened, int type);
766 extern void drmCloseOnce(int fd);
767 extern void drmMsg(const char *format, ...) DRM_PRINTFLIKE(1, 2);
769 extern int drmSetMaster(int fd);
770 extern int drmDropMaster(int fd);
771 extern int drmIsMaster(int fd);
773 #define DRM_EVENT_CONTEXT_VERSION 4
775 typedef struct _drmEventContext {
777 /* This struct is versioned so we can add more pointers if we
778 * add more events. */
781 void (*vblank_handler)(int fd,
782 unsigned int sequence,
784 unsigned int tv_usec,
787 void (*page_flip_handler)(int fd,
788 unsigned int sequence,
790 unsigned int tv_usec,
793 void (*page_flip_handler2)(int fd,
794 unsigned int sequence,
796 unsigned int tv_usec,
797 unsigned int crtc_id,
800 void (*sequence_handler)(int fd,
804 } drmEventContext, *drmEventContextPtr;
806 extern int drmHandleEvent(int fd, drmEventContextPtr evctx);
808 #define TIZEN_USE_USER_HANDLER
809 #ifdef TIZEN_USE_USER_HANDLER
810 typedef int (*drm_user_handler)(struct drm_event *event);
811 extern int drmAddUserHandler(int fd, drm_user_handler handler);
812 extern void drmRemoveUserHandler(int fd, drm_user_handler handler);
815 extern char *drmGetDeviceNameFromFd(int fd);
817 /* Improved version of drmGetDeviceNameFromFd which attributes for any type of
818 * device/node - card, control or renderD.
820 extern char *drmGetDeviceNameFromFd2(int fd);
821 extern int drmGetNodeTypeFromFd(int fd);
823 extern int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int *prime_fd);
824 extern int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t *handle);
826 extern char *drmGetPrimaryDeviceNameFromFd(int fd);
827 extern char *drmGetRenderDeviceNameFromFd(int fd);
829 #define DRM_BUS_PCI 0
830 #define DRM_BUS_USB 1
831 #define DRM_BUS_PLATFORM 2
832 #define DRM_BUS_HOST1X 3
834 typedef struct _drmPciBusInfo {
839 } drmPciBusInfo, *drmPciBusInfoPtr;
841 typedef struct _drmPciDeviceInfo {
844 uint16_t subvendor_id;
845 uint16_t subdevice_id;
847 } drmPciDeviceInfo, *drmPciDeviceInfoPtr;
849 typedef struct _drmUsbBusInfo {
852 } drmUsbBusInfo, *drmUsbBusInfoPtr;
854 typedef struct _drmUsbDeviceInfo {
857 } drmUsbDeviceInfo, *drmUsbDeviceInfoPtr;
859 #define DRM_PLATFORM_DEVICE_NAME_LEN 512
861 typedef struct _drmPlatformBusInfo {
862 char fullname[DRM_PLATFORM_DEVICE_NAME_LEN];
863 } drmPlatformBusInfo, *drmPlatformBusInfoPtr;
865 typedef struct _drmPlatformDeviceInfo {
866 char **compatible; /* NULL terminated list of compatible strings */
867 } drmPlatformDeviceInfo, *drmPlatformDeviceInfoPtr;
869 #define DRM_HOST1X_DEVICE_NAME_LEN 512
871 typedef struct _drmHost1xBusInfo {
872 char fullname[DRM_HOST1X_DEVICE_NAME_LEN];
873 } drmHost1xBusInfo, *drmHost1xBusInfoPtr;
875 typedef struct _drmHost1xDeviceInfo {
876 char **compatible; /* NULL terminated list of compatible strings */
877 } drmHost1xDeviceInfo, *drmHost1xDeviceInfoPtr;
879 typedef struct _drmDevice {
880 char **nodes; /* DRM_NODE_MAX sized array */
881 int available_nodes; /* DRM_NODE_* bitmask */
884 drmPciBusInfoPtr pci;
885 drmUsbBusInfoPtr usb;
886 drmPlatformBusInfoPtr platform;
887 drmHost1xBusInfoPtr host1x;
890 drmPciDeviceInfoPtr pci;
891 drmUsbDeviceInfoPtr usb;
892 drmPlatformDeviceInfoPtr platform;
893 drmHost1xDeviceInfoPtr host1x;
895 } drmDevice, *drmDevicePtr;
897 extern int drmGetDevice(int fd, drmDevicePtr *device);
898 extern void drmFreeDevice(drmDevicePtr *device);
900 extern int drmGetDevices(drmDevicePtr devices[], int max_devices);
901 extern void drmFreeDevices(drmDevicePtr devices[], int count);
903 #define DRM_DEVICE_GET_PCI_REVISION (1 << 0)
904 extern int drmGetDevice2(int fd, uint32_t flags, drmDevicePtr *device);
905 extern int drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_devices);
907 extern int drmDevicesEqual(drmDevicePtr a, drmDevicePtr b);
909 extern int drmSyncobjCreate(int fd, uint32_t flags, uint32_t *handle);
910 extern int drmSyncobjDestroy(int fd, uint32_t handle);
911 extern int drmSyncobjHandleToFD(int fd, uint32_t handle, int *obj_fd);
912 extern int drmSyncobjFDToHandle(int fd, int obj_fd, uint32_t *handle);
914 extern int drmSyncobjImportSyncFile(int fd, uint32_t handle, int sync_file_fd);
915 extern int drmSyncobjExportSyncFile(int fd, uint32_t handle, int *sync_file_fd);
916 extern int drmSyncobjWait(int fd, uint32_t *handles, unsigned num_handles,
917 int64_t timeout_nsec, unsigned flags,
918 uint32_t *first_signaled);
919 extern int drmSyncobjReset(int fd, const uint32_t *handles, uint32_t handle_count);
920 extern int drmSyncobjSignal(int fd, const uint32_t *handles, uint32_t handle_count);
921 extern int drmSyncobjTimelineSignal(int fd, const uint32_t *handles,
922 uint64_t *points, uint32_t handle_count);
923 extern int drmSyncobjTimelineWait(int fd, uint32_t *handles, uint64_t *points,
924 unsigned num_handles,
925 int64_t timeout_nsec, unsigned flags,
926 uint32_t *first_signaled);
927 extern int drmSyncobjQuery(int fd, uint32_t *handles, uint64_t *points,
928 uint32_t handle_count);
929 extern int drmSyncobjQuery2(int fd, uint32_t *handles, uint64_t *points,
930 uint32_t handle_count, uint32_t flags);
931 extern int drmSyncobjTransfer(int fd,
932 uint32_t dst_handle, uint64_t dst_point,
933 uint32_t src_handle, uint64_t src_point,
936 #if defined(__cplusplus)