patch to import Jon Smirl's work from Bitkeeper

1 files changed, 609 insertions, 0 deletions

diff --git a/src/glx/mini/xf86drm.h b/src/glx/mini/xf86drm.h
new file mode 100644
index 00000000000..cee5ca5f696
--- /dev/null
+++ b/src/glx/mini/xf86drm.h
@@ -0,0 +1,609 @@
+/* xf86drm.h -- OS-independent header for DRM user-level library interface
+ * Created: Tue Jan  5 08:17:23 1999 by [email protected]
+ *
+ * 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.
+ *
+ * Author: Rickard E. (Rik) Faith <[email protected]>
+ *
+ * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/xf86drm.h,v 1.22 2003/06/12 14:12:35 eich Exp $
+ *
+ */
+
+#ifndef _XF86DRM_H_
+#define _XF86DRM_H_
+
+				/* 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)
+
+#define DRM_DIR_NAME  "/dev/dri"
+#define DRM_DEV_NAME  "%s/card%d"
+#define DRM_PROC_NAME "/proc/dri/" /* For backware Linux compatibility */
+
+#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 long drmHandle,   *drmHandlePtr;   /* To mapped regions    */
+typedef unsigned int  drmSize,     *drmSizePtr;	    /* For mapped regions   */
+typedef void          *drmAddress, **drmAddressPtr; /* For mapped regions   */
+typedef unsigned int  drmContext,  *drmContextPtr;  /* GLXContext handle    */
+typedef unsigned int  drmDrawable, *drmDrawablePtr; /* Unused               */
+typedef unsigned int  drmMagic,    *drmMagicPtr;    /* Magic for auth       */
+
+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                     */
+} 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;
+
+typedef enum {			 /* These values *MUST* match drm.h         */
+				 /* 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                  */
+
+				 /* 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
+} 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. */
+} drmContextFlags, *drmContextFlagsPtr;
+
+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 master buflist              */
+    int              total;	  /* Buffer size                            */
+    int              used;	  /* Amount of buffer in use (for DMA)      */
+    drmAddress       address;	  /* Address                                */
+} drmBuf, *drmBufPtr;
+
+typedef struct _drmBufMap {
+    int              count;	  /* Number of buffers mapped               */
+    drmBufPtr        list;	  /* Buffers                                */
+} drmBufMap, *drmBufMapPtr;
+
+typedef struct _drmLock {
+    volatile unsigned int lock;
+    char                      padding[60];
+    /* This is big enough for most current (and future?) architectures:
+       DEC Alpha:              32 bytes
+       Intel Merced:           ?
+       Intel P5/PPro/PII/PIII: 32 bytes
+       Intel StrongARM:        32 bytes
+       Intel i386/i486:        16 bytes
+       MIPS:                   32 bytes (?)
+       Motorola 68k:           16 bytes
+       Motorola PowerPC:       32 bytes
+       Sun SPARC:              32 bytes
+    */
+} drmLock, *drmLockPtr;
+
+typedef struct _drmDMAReq {
+				  /* Indices here refer to the offset into
+				     list in drmBufInfo                     */
+    drmContext    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 {
+    drmHandle     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 struct _drmClipRect {
+    unsigned short	x1; /* Upper left: inclusive */
+    unsigned short	y1;
+    unsigned short	x2; /* Lower right: exclusive */
+    unsigned short	y2;
+} drmClipRect, *drmClipRectPtr;
+
+
+typedef enum {
+    DRM_VBLANK_ABSOLUTE = 0x0,		/* Wait for specific vblank sequence number */
+    DRM_VBLANK_RELATIVE = 0x1,		/* Wait for given number of vblanks */
+    DRM_VBLANK_SIGNAL   = 0x40000000	/* Send signal instead of blocking */
+} drmVBlankSeqType;
+
+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;
+
+
+
+#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
+
+#define DRM_LOCK_HELD  0x80000000 /* Hardware lock is held                 */
+#define DRM_LOCK_CONT  0x40000000 /* Hardware lock is contended            */
+
+#if defined(__GNUC__) && (__GNUC__ >= 2)
+# if defined(__i386) || 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 old32;                      \
+ 		int cur32;			\
+ 		__asm__ __volatile__(		\
+ 		"       mb\n"			\
+ 		"       zap   %4, 0xF0, %0\n"   \
+ 		"       ldl_l %1, %2\n"		\
+ 		"       zap   %1, 0xF0, %1\n"   \
+                "       cmpeq %0, %1, %1\n"	\
+                "       beq   %1, 1f\n"		\
+ 		"       bis   %5, %5, %1\n"	\
+                "       stl_c %1, %2\n"		\
+                "1:     xor   %1, 1, %1\n"	\
+                "       stl   %1, %3"		\
+                : "+r" (old32),                 \
+		  "+&r" (cur32),		\
+                   "=m" (__drm_dummy_lock(lock)),\
+                   "=m" (ret)			\
+ 		: "r" (old),			\
+ 		  "r" (new));			\
+ 	} 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__)
+
+#if 0
+/* this currently generates bad code (missing stop bits)... */
+#include <ia64intrin.h>
+
+#define DRM_CAS(lock,old,new,__ret)					      \
+	do {								      \
+		__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" (__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__) || 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);
+extern int           drmClose(int fd);
+extern drmVersionPtr drmGetVersion(int fd);
+extern drmVersionPtr drmGetLibVersion(int fd);
+extern void          drmFreeVersion(drmVersionPtr);
+extern int           drmGetMagic(int fd, drmMagicPtr magic);
+extern char          *drmGetBusid(int fd);
+extern int           drmGetInterruptFromBusID(int fd, int busnum, int devnum,
+					      int funcnum);
+extern int           drmGetMap(int fd, int idx, drmHandle *offset,
+			       drmSize *size, drmMapType *type,
+			       drmMapFlags *flags, drmHandle *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           drmCommandNone(int fd, unsigned long drmCommandIndex);
+extern int           drmCommandRead(int fd, unsigned long drmCommandIndex,
+                                    void *data, unsigned long size);
+extern int           drmCommandWrite(int fd, unsigned long drmCommandIndex,
+                                     void *data, unsigned long size);
+extern int           drmCommandWriteRead(int fd, unsigned long drmCommandIndex,
+                                         void *data, unsigned long size);
+
+/* General user-level programmer's API: X server (root) only  */
+extern void          drmFreeBusid(const char *busid);
+extern int           drmSetBusid(int fd, const char *busid);
+extern int           drmAuthMagic(int fd, drmMagic magic);
+extern int           drmAddMap(int fd,
+			       drmHandle offset,
+			       drmSize size,
+			       drmMapType type,
+			       drmMapFlags flags,
+			       drmHandlePtr handle);
+extern int	     drmRmMap(int fd, drmHandle handle);
+extern int	     drmAddContextPrivateMapping(int fd, drmContext ctx_id,
+						 drmHandle 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, drmContextPtr handle);
+extern int           drmSetContextFlags(int fd, drmContext context,
+					drmContextFlags flags);
+extern int           drmGetContextFlags(int fd, drmContext context,
+					drmContextFlagsPtr flags);
+extern int           drmAddContextTag(int fd, drmContext context, void *tag);
+extern int           drmDelContextTag(int fd, drmContext context);
+extern void          *drmGetContextTag(int fd, drmContext context);
+extern drmContextPtr drmGetReservedContextList(int fd, int *count);
+extern void          drmFreeReservedContextList(drmContextPtr);
+extern int           drmSwitchToContext(int fd, drmContext context);
+extern int           drmDestroyContext(int fd, drmContext handle);
+extern int           drmCreateDrawable(int fd, drmDrawablePtr handle);
+extern int           drmDestroyDrawable(int fd, drmDrawable handle);
+extern int           drmCtlInstHandler(int fd, int irq);
+extern int           drmCtlUninstHandler(int fd);
+extern int           drmInstallSIGIOHandler(int fd,
+					    void (*f)(int fd,
+						      void *oldctx,
+						      void *newctx));
+extern int           drmRemoveSIGIOHandler(int fd);
+
+/* General user-level programmer's API: authenticated client and/or X */
+extern int           drmMap(int fd,
+			    drmHandle handle,
+			    drmSize size,
+			    drmAddressPtr address);
+extern int           drmUnmap(drmAddress address, drmSize size);
+extern drmBufInfoPtr drmGetBufInfo(int fd);
+extern drmBufMapPtr  drmMapBufs(int fd);
+extern int           drmUnmapBufs(drmBufMapPtr bufs);
+extern int           drmDMA(int fd, drmDMAReqPtr request);
+extern int           drmFreeBufs(int fd, int count, int *list);
+extern int           drmGetLock(int fd,
+			        drmContext context,
+			        drmLockFlags flags);
+extern int           drmUnlock(int fd, drmContext context);
+extern int           drmFinish(int fd, int context, drmLockFlags flags);
+extern int	     drmGetContextPrivateMapping(int fd, drmContext ctx_id, 
+						 drmHandlePtr 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,
+				 unsigned long *handle);
+extern int           drmAgpFree(int fd, unsigned long handle);
+extern int 	     drmAgpBind(int fd, unsigned long handle,
+				unsigned long offset);
+extern int           drmAgpUnbind(int fd, unsigned long 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,
+					   unsigned long *handle);
+extern int           drmScatterGatherFree(int fd, unsigned long handle);
+
+extern int           drmWaitVBlank(int fd, drmVBlankPtr vbl);
+
+/* Support routines */
+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);
+extern int  drmHashFirst(void *t, unsigned long *key, void **value);
+extern int  drmHashNext(void *t, unsigned long *key, void **value);
+
+/* PRNG routines */
+extern void          *drmRandomCreate(unsigned long seed);
+extern int           drmRandomDestroy(void *state);
+extern unsigned long drmRandom(void *state);
+extern double        drmRandomDouble(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);
+
+#endif