/** * \file xf86drm.h * OS-independent header for DRM user-level library interface. * * \author Rickard E. (Rik) Faith */ /* * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * */ #ifndef _XF86DRM_H_ #define _XF86DRM_H_ #include #include #include #include "drm.h" #include "libdrm_macros.h" #if defined(__cplusplus) extern "C" { #endif #ifndef DRM_MAX_MINOR #define DRM_MAX_MINOR 16 #endif #if defined(__linux__) #define DRM_IOCTL_NR(n) _IOC_NR(n) #define DRM_IOC_VOID _IOC_NONE #define DRM_IOC_READ _IOC_READ #define DRM_IOC_WRITE _IOC_WRITE #define DRM_IOC_READWRITE _IOC_READ|_IOC_WRITE #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) #else /* One of the *BSDs */ #include #define DRM_IOCTL_NR(n) ((n) & 0xff) #define DRM_IOC_VOID IOC_VOID #define DRM_IOC_READ IOC_OUT #define DRM_IOC_WRITE IOC_IN #define DRM_IOC_READWRITE IOC_INOUT #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) #endif /* Defaults, if nothing set in xf86config */ #define DRM_DEV_UID 0 #define DRM_DEV_GID 0 /* Default /dev/dri directory permissions 0755 */ #define DRM_DEV_DIRMODE \ (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) #ifdef __OpenBSD__ #define DRM_DIR_NAME "/dev" #define DRM_DEV_NAME "%s/drm%d" #define DRM_CONTROL_DEV_NAME "%s/drmC%d" #define DRM_RENDER_DEV_NAME "%s/drmR%d" #else #define DRM_DIR_NAME "/dev/dri" #define DRM_DEV_NAME "%s/card%d" #define DRM_CONTROL_DEV_NAME "%s/controlD%d" #define DRM_RENDER_DEV_NAME "%s/renderD%d" #define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */ #endif #define DRM_ERR_NO_DEVICE (-1001) #define DRM_ERR_NO_ACCESS (-1002) #define DRM_ERR_NOT_ROOT (-1003) #define DRM_ERR_INVALID (-1004) #define DRM_ERR_NO_FD (-1005) #define DRM_AGP_NO_HANDLE 0 typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */ typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */ #if (__GNUC__ >= 3) #define DRM_PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a))) #else #define DRM_PRINTFLIKE(f, a) #endif typedef struct _drmServerInfo { int (*debug_print)(const char *format, va_list ap) DRM_PRINTFLIKE(1,0); int (*load_module)(const char *name); void (*get_perms)(gid_t *, mode_t *); } drmServerInfo, *drmServerInfoPtr; typedef struct drmHashEntry { int fd; void (*f)(int, void *, void *); void *tagTable; } drmHashEntry; extern drm_export int mosdrmIoctl(int fd, unsigned long request, void *arg); extern drm_export int drmIoctl(int fd, unsigned long request, void *arg); extern void *drmGetHashTable(void); extern drmHashEntry *drmGetEntry(int fd); /** * Driver version information. * * \sa drmGetVersion() and drmSetVersion(). */ typedef struct _drmVersion { int version_major; /**< Major version */ int version_minor; /**< Minor version */ int version_patchlevel; /**< Patch level */ int name_len; /**< Length of name buffer */ char *name; /**< Name of driver */ int date_len; /**< Length of date buffer */ char *date; /**< User-space buffer to hold date */ int desc_len; /**< Length of desc buffer */ char *desc; /**< User-space buffer to hold desc */ } drmVersion, *drmVersionPtr; typedef struct _drmStats { unsigned long count; /**< Number of data */ struct { unsigned long value; /**< Value from kernel */ const char *long_format; /**< Suggested format for long_name */ const char *long_name; /**< Long name for value */ const char *rate_format; /**< Suggested format for rate_name */ const char *rate_name; /**< Short name for value per second */ int isvalue; /**< True if value (vs. counter) */ const char *mult_names; /**< Multiplier names (e.g., "KGM") */ int mult; /**< Multiplier value (e.g., 1024) */ int verbose; /**< Suggest only in verbose output */ } data[15]; } drmStatsT; /* All of these enums *MUST* match with the kernel implementation -- so do *NOT* change them! (The drmlib implementation will just copy the flags instead of translating them.) */ typedef enum { DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */ DRM_REGISTERS = 1, /**< no caching, no core dump */ DRM_SHM = 2, /**< shared, cached */ DRM_AGP = 3, /**< AGP/GART */ DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */ DRM_CONSISTENT = 5 /**< PCI consistent */ } drmMapType; typedef enum { DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */ DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */ DRM_LOCKED = 0x0004, /**< Physical pages locked */ DRM_KERNEL = 0x0008, /**< Kernel requires access */ DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */ DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */ DRM_REMOVABLE = 0x0040 /**< Removable mapping */ } drmMapFlags; /** * \warning These values *MUST* match drm.h */ typedef enum { /** \name Flags for DMA buffer dispatch */ /*@{*/ DRM_DMA_BLOCK = 0x01, /**< * Block until buffer dispatched. * * \note the buffer may not yet have been * processed by the hardware -- getting a * hardware lock with the hardware quiescent * will ensure that the buffer has been * processed. */ DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */ DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */ /*@}*/ /** \name Flags for DMA buffer request */ /*@{*/ DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */ DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */ DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */ /*@}*/ } drmDMAFlags; typedef enum { DRM_PAGE_ALIGN = 0x01, DRM_AGP_BUFFER = 0x02, DRM_SG_BUFFER = 0x04, DRM_FB_BUFFER = 0x08, DRM_PCI_BUFFER_RO = 0x10 } drmBufDescFlags; typedef enum { DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */ DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */ DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */ DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */ /* These *HALT* flags aren't supported yet -- they will be used to support the full-screen DGA-like mode. */ DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */ DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */ } drmLockFlags; typedef enum { DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and never swapped. */ DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */ } drm_context_tFlags, *drm_context_tFlagsPtr; typedef struct _drmBufDesc { int count; /**< Number of buffers of this size */ int size; /**< Size in bytes */ int low_mark; /**< Low water mark */ int high_mark; /**< High water mark */ } drmBufDesc, *drmBufDescPtr; typedef struct _drmBufInfo { int count; /**< Number of buffers described in list */ drmBufDescPtr list; /**< List of buffer descriptions */ } drmBufInfo, *drmBufInfoPtr; typedef struct _drmBuf { int idx; /**< Index into the master buffer list */ int total; /**< Buffer size */ int used; /**< Amount of buffer in use (for DMA) */ drmAddress address; /**< Address */ } drmBuf, *drmBufPtr; /** * Buffer mapping information. * * Used by drmMapBufs() and drmUnmapBufs() to store information about the * mapped buffers. */ typedef struct _drmBufMap { int count; /**< Number of buffers mapped */ drmBufPtr list; /**< Buffers */ } drmBufMap, *drmBufMapPtr; typedef struct _drmLock { volatile unsigned int lock; char padding[60]; } drmLock, *drmLockPtr; /** * Indices here refer to the offset into * list in drmBufInfo */ typedef struct _drmDMAReq { drm_context_t context; /**< Context handle */ int send_count; /**< Number of buffers to send */ int *send_list; /**< List of handles to buffers */ int *send_sizes; /**< Lengths of data to send, in bytes */ drmDMAFlags flags; /**< Flags */ int request_count; /**< Number of buffers requested */ int request_size; /**< Desired size of buffers requested */ int *request_list; /**< Buffer information */ int *request_sizes; /**< Minimum acceptable sizes */ int granted_count; /**< Number of buffers granted at this size */ } drmDMAReq, *drmDMAReqPtr; typedef struct _drmRegion { drm_handle_t handle; unsigned int offset; drmSize size; drmAddress map; } drmRegion, *drmRegionPtr; typedef struct _drmTextureRegion { unsigned char next; unsigned char prev; unsigned char in_use; unsigned char padding; /**< Explicitly pad this out */ unsigned int age; } drmTextureRegion, *drmTextureRegionPtr; typedef enum { DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ /* bits 1-6 are reserved for high crtcs */ DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e, DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */ DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */ } drmVBlankSeqType; #define DRM_VBLANK_HIGH_CRTC_SHIFT 1 typedef struct _drmVBlankReq { drmVBlankSeqType type; unsigned int sequence; unsigned long signal; } drmVBlankReq, *drmVBlankReqPtr; typedef struct _drmVBlankReply { drmVBlankSeqType type; unsigned int sequence; long tval_sec; long tval_usec; } drmVBlankReply, *drmVBlankReplyPtr; typedef union _drmVBlank { drmVBlankReq request; drmVBlankReply reply; } drmVBlank, *drmVBlankPtr; typedef struct _drmSetVersion { int drm_di_major; int drm_di_minor; int drm_dd_major; int drm_dd_minor; } drmSetVersion, *drmSetVersionPtr; #define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock) #define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */ #define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */ #if defined(__GNUC__) && (__GNUC__ >= 2) # if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__) /* Reflect changes here to drmP.h */ #define DRM_CAS(lock,old,new,__ret) \ do { \ int __dummy; /* Can't mark eax as clobbered */ \ __asm__ __volatile__( \ "lock ; cmpxchg %4,%1\n\t" \ "setnz %0" \ : "=d" (__ret), \ "=m" (__drm_dummy_lock(lock)), \ "=a" (__dummy) \ : "2" (old), \ "r" (new)); \ } while (0) #elif defined(__alpha__) #define DRM_CAS(lock, old, new, ret) \ do { \ int tmp, old32; \ __asm__ __volatile__( \ " addl $31, %5, %3\n" \ "1: ldl_l %0, %2\n" \ " cmpeq %0, %3, %1\n" \ " beq %1, 2f\n" \ " mov %4, %0\n" \ " stl_c %0, %2\n" \ " beq %0, 3f\n" \ " mb\n" \ "2: cmpeq %1, 0, %1\n" \ ".subsection 2\n" \ "3: br 1b\n" \ ".previous" \ : "=&r"(tmp), "=&r"(ret), \ "=m"(__drm_dummy_lock(lock)), \ "=&r"(old32) \ : "r"(new), "r"(old) \ : "memory"); \ } while (0) #elif defined(__sparc__) #define DRM_CAS(lock,old,new,__ret) \ do { register unsigned int __old __asm("o0"); \ register unsigned int __new __asm("o1"); \ register volatile unsigned int *__lock __asm("o2"); \ __old = old; \ __new = new; \ __lock = (volatile unsigned int *)lock; \ __asm__ __volatile__( \ /*"cas [%2], %3, %0"*/ \ ".word 0xd3e29008\n\t" \ /*"membar #StoreStore | #StoreLoad"*/ \ ".word 0x8143e00a" \ : "=&r" (__new) \ : "0" (__new), \ "r" (__lock), \ "r" (__old) \ : "memory"); \ __ret = (__new != __old); \ } while(0) #elif defined(__ia64__) #ifdef __INTEL_COMPILER /* this currently generates bad code (missing stop bits)... */ #include #define DRM_CAS(lock,old,new,__ret) \ do { \ unsigned long __result, __old = (old) & 0xffffffff; \ __mf(); \ __result = _InterlockedCompareExchange_acq(&__drm_dummy_lock(lock), (new), __old);\ __ret = (__result) != (__old); \ /* __ret = (__sync_val_compare_and_swap(&__drm_dummy_lock(lock), \ (old), (new)) \ != (old)); */\ } while (0) #else #define DRM_CAS(lock,old,new,__ret) \ do { \ unsigned int __result, __old = (old); \ __asm__ __volatile__( \ "mf\n" \ "mov ar.ccv=%2\n" \ ";;\n" \ "cmpxchg4.acq %0=%1,%3,ar.ccv" \ : "=r" (__result), "=m" (__drm_dummy_lock(lock)) \ : "r" ((unsigned long)__old), "r" (new) \ : "memory"); \ __ret = (__result) != (__old); \ } while (0) #endif #elif defined(__powerpc__) #define DRM_CAS(lock,old,new,__ret) \ do { \ __asm__ __volatile__( \ "sync;" \ "0: lwarx %0,0,%1;" \ " xor. %0,%3,%0;" \ " bne 1f;" \ " stwcx. %2,0,%1;" \ " bne- 0b;" \ "1: " \ "sync;" \ : "=&r"(__ret) \ : "r"(lock), "r"(new), "r"(old) \ : "cr0", "memory"); \ } while (0) #endif /* architecture */ #endif /* __GNUC__ >= 2 */ #ifndef DRM_CAS #define DRM_CAS(lock,old,new,ret) do { ret=1; } while (0) /* FAST LOCK FAILS */ #endif #if defined(__alpha__) #define DRM_CAS_RESULT(_result) long _result #elif defined(__powerpc__) #define DRM_CAS_RESULT(_result) int _result #else #define DRM_CAS_RESULT(_result) char _result #endif #define DRM_LIGHT_LOCK(fd,lock,context) \ do { \ DRM_CAS_RESULT(__ret); \ DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ if (__ret) drmGetLock(fd,context,0); \ } while(0) /* This one counts fast locks -- for benchmarking only. */ #define DRM_LIGHT_LOCK_COUNT(fd,lock,context,count) \ do { \ DRM_CAS_RESULT(__ret); \ DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ if (__ret) drmGetLock(fd,context,0); \ else ++count; \ } while(0) #define DRM_LOCK(fd,lock,context,flags) \ do { \ if (flags) drmGetLock(fd,context,flags); \ else DRM_LIGHT_LOCK(fd,lock,context); \ } while(0) #define DRM_UNLOCK(fd,lock,context) \ do { \ DRM_CAS_RESULT(__ret); \ DRM_CAS(lock,DRM_LOCK_HELD|context,context,__ret); \ if (__ret) drmUnlock(fd,context); \ } while(0) /* Simple spin locks */ #define DRM_SPINLOCK(spin,val) \ do { \ DRM_CAS_RESULT(__ret); \ do { \ DRM_CAS(spin,0,val,__ret); \ if (__ret) while ((spin)->lock); \ } while (__ret); \ } while(0) #define DRM_SPINLOCK_TAKE(spin,val) \ do { \ DRM_CAS_RESULT(__ret); \ int cur; \ do { \ cur = (*spin).lock; \ DRM_CAS(spin,cur,val,__ret); \ } while (__ret); \ } while(0) #define DRM_SPINLOCK_COUNT(spin,val,count,__ret) \ do { \ int __i; \ __ret = 1; \ for (__i = 0; __ret && __i < count; __i++) { \ DRM_CAS(spin,0,val,__ret); \ if (__ret) for (;__i < count && (spin)->lock; __i++); \ } \ } while(0) #define DRM_SPINUNLOCK(spin,val) \ do { \ DRM_CAS_RESULT(__ret); \ if ((*spin).lock == val) { /* else server stole lock */ \ do { \ DRM_CAS(spin,val,0,__ret); \ } while (__ret); \ } \ } while(0) /* General user-level programmer's API: unprivileged */ extern int drmAvailable(void); extern int drmOpen(const char *name, const char *busid); #define DRM_NODE_PRIMARY 0 #define DRM_NODE_CONTROL 1 #define DRM_NODE_RENDER 2 #define DRM_NODE_MAX 3 extern int drmOpenWithType(const char *name, const char *busid, int type); extern int drmOpenControl(int minor); extern int drmOpenRender(int minor); extern int drmClose(int fd); extern drmVersionPtr drmGetVersion(int fd); extern void drmFreeVersion(drmVersionPtr); extern char *drmGetBusid(int fd); extern int drmGetInterruptFromBusID(int fd, int busnum, int devnum, int funcnum); extern int drmGetMap(int fd, int idx, drm_handle_t *offset, drmSize *size, drmMapType *type, drmMapFlags *flags, drm_handle_t *handle, int *mtrr); extern int drmGetClient(int fd, int idx, int *auth, int *pid, int *uid, unsigned long *magic, unsigned long *iocs); extern int drmGetStats(int fd, drmStatsT *stats); extern int drmSetInterfaceVersion(int fd, drmSetVersion *version); /* General user-level programmer's API: X server (root) only */ extern void drmFreeBusid(const char *busid); extern int drmAddMap(int fd, drm_handle_t offset, drmSize size, drmMapType type, drmMapFlags flags, drm_handle_t * handle); extern int drmRmMap(int fd, drm_handle_t handle); extern int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id, drm_handle_t handle); extern int drmAddBufs(int fd, int count, int size, drmBufDescFlags flags, int agp_offset); extern int drmMarkBufs(int fd, double low, double high); extern int drmCreateContext(int fd, drm_context_t * handle); extern int drmSetContextFlags(int fd, drm_context_t context, drm_context_tFlags flags); extern int drmGetContextFlags(int fd, drm_context_t context, drm_context_tFlagsPtr flags); extern int drmAddContextTag(int fd, drm_context_t context, void *tag); extern int drmDelContextTag(int fd, drm_context_t context); extern void *drmGetContextTag(int fd, drm_context_t context); extern drm_context_t * drmGetReservedContextList(int fd, int *count); extern void drmFreeReservedContextList(drm_context_t *); extern int drmSwitchToContext(int fd, drm_context_t context); extern int drmDestroyContext(int fd, drm_context_t handle); extern int drmCreateDrawable(int fd, drm_drawable_t * handle); extern int drmDestroyDrawable(int fd, drm_drawable_t handle); extern int drmUpdateDrawableInfo(int fd, drm_drawable_t handle, drm_drawable_info_type_t type, unsigned int num, void *data); extern int drmCtlInstHandler(int fd, int irq); extern int drmCtlUninstHandler(int fd); /* General user-level programmer's API: authenticated client and/or X */ extern int drmDMA(int fd, drmDMAReqPtr request); extern int drmFreeBufs(int fd, int count, int *list); extern int drmGetLock(int fd, drm_context_t context, drmLockFlags flags); extern int drmUnlock(int fd, drm_context_t context); extern int drmFinish(int fd, int context, drmLockFlags flags); extern int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id, drm_handle_t * handle); /* AGP/GART support: X server (root) only */ extern int drmAgpAcquire(int fd); extern int drmAgpRelease(int fd); extern int drmAgpEnable(int fd, unsigned long mode); extern int drmAgpAlloc(int fd, unsigned long size, unsigned long type, unsigned long *address, drm_handle_t *handle); extern int drmAgpFree(int fd, drm_handle_t handle); extern int drmAgpBind(int fd, drm_handle_t handle, unsigned long offset); extern int drmAgpUnbind(int fd, drm_handle_t handle); /* AGP/GART info: authenticated client and/or X */ extern int drmAgpVersionMajor(int fd); extern int drmAgpVersionMinor(int fd); extern unsigned long drmAgpGetMode(int fd); extern unsigned long drmAgpBase(int fd); /* Physical location */ extern unsigned long drmAgpSize(int fd); /* Bytes */ extern unsigned long drmAgpMemoryUsed(int fd); extern unsigned long drmAgpMemoryAvail(int fd); extern unsigned int drmAgpVendorId(int fd); extern unsigned int drmAgpDeviceId(int fd); /* PCI scatter/gather support: X server (root) only */ extern int drmScatterGatherAlloc(int fd, unsigned long size, drm_handle_t *handle); extern int drmScatterGatherFree(int fd, drm_handle_t handle); extern int drmWaitVBlank(int fd, drmVBlankPtr vbl); /* Support routines */ extern void drmSetServerInfo(drmServerInfoPtr info); extern int drmError(int err, const char *label); extern void *drmMalloc(int size); extern void drmFree(void *pt); /* Hash table routines */ extern void *drmHashCreate(void); extern int drmHashDestroy(void *t); extern int drmHashLookup(void *t, unsigned long key, void **value); extern int drmHashInsert(void *t, unsigned long key, void *value); extern int drmHashDelete(void *t, unsigned long key); /* PRNG routines */ extern void *drmRandomCreate(unsigned long seed); extern int drmRandomDestroy(void *state); extern unsigned long drmRandom(void *state); /* Skip list routines */ extern void *drmSLCreate(void); extern int drmSLDestroy(void *l); extern int drmSLLookup(void *l, unsigned long key, void **value); extern int drmSLInsert(void *l, unsigned long key, void *value); extern int drmSLDelete(void *l, unsigned long key); extern int drmSLNext(void *l, unsigned long *key, void **value); extern int drmSLFirst(void *l, unsigned long *key, void **value); extern void drmSLDump(void *l); extern int drmSLLookupNeighbors(void *l, unsigned long key, unsigned long *prev_key, void **prev_value, unsigned long *next_key, void **next_value); extern void drmMsg(const char *format, ...) DRM_PRINTFLIKE(1, 2); #define DRM_EVENT_CONTEXT_VERSION 2 typedef struct _drmEventContext { /* This struct is versioned so we can add more pointers if we * add more events. */ int version; void (*vblank_handler)(int fd, unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec, void *user_data); void (*page_flip_handler)(int fd, unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec, void *user_data); } drmEventContext, *drmEventContextPtr; extern int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int *prime_fd); extern int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t *handle); extern char *drmGetPrimaryDeviceNameFromFd(int fd); extern char *drmGetRenderDeviceNameFromFd(int fd); #define DRM_BUS_PCI 0 #if defined(__cplusplus) } #endif #endif