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AgeCommit message (Collapse)Author
2007-04-10Remove some delays from Intel i2c code, we'll need a more comprehensive fixJesse Barnes
in the Linux i2c layer to make DDC reliable on old monitors.
2007-04-10Finish bringing in LVDS code, re-add to Makefile. Needed other changes too:Jesse Barnes
- move EDID structures to drm_edid.h - add EDID info structure to drm_output - add a few routines to intel_display for getting current mode info - add some prototypes to intel_drv.h and drm_crtc.h
2007-04-09Slam in most of X.Org's i830_lvds (not quite done yet so removed from ↵Jesse Barnes
Makefile.kernel too).
2007-04-09Fix refresh calculation (mistakenly removed 1000 factor needed for integer ↵Jesse Barnes
calulations, fixed mode printout debugging routine instead).
2007-04-07remove a printk to make things less verboseJesse Barnes
2007-04-07just codingstyle cleanupsJesse Barnes
2007-04-07document drm_mode_duplicate and fix vrefresh calculation (off by 1000 error)Jesse Barnes
2007-04-07various cleanups to EDID code:Jesse Barnes
- pull in FB DDC code (we'll have to rewrite it anyway it appears) - add comments - note a few FIXMEs - make it less quiet, and more informative when it actually does print
2007-04-07make drmP.h include drm_crtc.h for CRTC related stuff.Jesse Barnes
fixup drm_crtc.c so it matches VGA and other outputs properly. make drm_crtc.c less verbose. add function declarations in drm_crtc.h for other files.
2007-04-05Add required permission notices for code copied from X.Org source.Eric Anholt
2007-04-05Merge branch 'modesetting-101' of git+ssh://git.freedesktop.org/git/mesa/drm ↵Jesse Barnes
into modesetting-101
2007-04-05Add copyrights before I forgetJesse Barnes
2007-04-05add back compat for boolDave Airlie
2007-04-05checkpoint commit: implement SetCrtc so modes can in theory be set from userDave Airlie
This hooks up the userspace mode set it "seems" to work.
2007-04-05checkpoint commit: added getresources, crtc and outputDave Airlie
This adds the user interfaces from Jakob and hooks them up for 3 ioctls GetResources, GetCrtc and GetOutput. I've made the ids for everything fbs, crtcs, outputs and modes go via idr as per krh's suggestion on irc as it make the code nice and consistent.
2007-04-05initial userspace interface to get modesDave Airlie
2007-04-05Initial import of modesetting for intel driver in DRMDave Airlie
2007-04-05borrow edid.h from fb directoryDave Airlie
2007-04-05add an install target to the drm modules makefileDave Airlie
2007-04-03Fix user object reference when caller is not object creator.Thomas Hellstrom
(Reported by Dave Airlie).
2007-04-03Add a fence flush event to each fence-signaled check when lazy-waitingThomas Hellstrom
to make sure we don't lose any sequence numbers if, for some reason, they don't generate an IRQ.
2007-04-03Make sure we ack irqs before we read a breadcrumb so thatThomas Hellstrom
breadcrumb updates that occur _AFTER_ we've read the breadcrumb really generates a new IRQ.
2007-04-03Evicted no-move buffers can get lost if they end up in anotherThomas Hellstrom
memory type than local.
2007-04-03Fix an oops when trying to clean a not yet initialized memory type.Thomas Hellstrom
2007-04-03Make sure CMA (Can't map aperture) pages are mapped uncached.Thomas Hellstrom
(Should really make this write-combined using PATs, at some point).
2007-04-02r300: Synchronize the register header file again.Oliver McFadden
It's a good idea to keep these synchronized; even though the DRM doesn't use all the defines, maintaining two different copies is prone to errors when the diff gets bigger.
2007-04-01nouveau: fix usage of PGRAPH_CTX_CONTROL on nv20+Matthieu Castet
http://gitweb.freedesktop.org/?p=mesa/drm.git;a=commitdiff;h=17985f07d68322519919a7f629a6d2d9bf3916ed could have broken some nvxx_graph code : it rename NV03_PGRAPH_CTX_CONTROL to NV10_PGRAPH_CTX_CONTROL, but forgot to update it in nvxx_graph file. Also when migrating init stuff in http://gitweb.freedesktop.org/?p=mesa/drm.git;a=commitdiff;h=674cefd4fe4b537a20a10edcb4ec5df55facca8e, NV04_PGRAPH_CTX_CONTROL is used everywhere but the old ddx code use NV_PGRAPH_CTX_CONTROL_NV04 or NV_PGRAPH_CTX_CONTROL.
2007-04-01nouveau : nv10 ctx switch fixMatthieu Castet
restoring NV10_PGRAPH_CTX_SWITCH1 now works
2007-04-01nouveau : set the correct PGRAPH_CTX_CONTROL registerMatthieu Castet
"5a072f32 (Stephane Marchesin 2007-02-03 04:57:06 +0100" broke nv10 ctx switch by setting wrong PGRAPH_CTX_CONTROL reg
2007-03-30Merge branch 'crestline-qa', adding support for the 965GM chipset.Eric Anholt
2007-03-30Merge branch 'origin'Eric Anholt
2007-03-29drm/bo: avoid oops if the memory manager for this type isn't initialisedDave Airlie
2007-03-29nouveau: fix nv04 context switches.Stephane Marchesin
2007-03-27drm/i915: set the bo up at firstopen time not after DMA initDave Airlie
This is required to use TTM to allocate the ring buffer.
2007-03-27drm/ttm: make sure dev_mapping is set-up for the first opener of the drmDave Airlie
This was causing an oops in my miniglx code to try and use a TTM-only setup.
2007-03-27Merge git://proxy01.pd.intel.com:9419/git/mesa/drm into crestlineNian Wu
2007-03-26nouveau: move card initialisation into the drmBen Skeggs
The PGRAPH init for the various cards will need cleaning up at some point, a lot of the values written there are per-context state left over from the all the hardcoding done in the ddx. It's possible some cards get broken by this commit, let me know. Tested on: NV5, NV18, NV28, NV35, NV40, NV4E
2007-03-25Merge git://proxy01.pd.intel.com:9419/git/mesa/drm into crestlineNian Wu
2007-03-24Catch up to new interrupt API, and retire FreeBSD 4.x support here.Eric Anholt
2007-03-24vm: cleanup drm_vm.c along lines of cleanups queued for kernelDave Airlie
2007-03-23Merge git://proxy01.pd.intel.com:9419/git/mesa/drm into crestlineNian Wu
2007-03-23nouveau: rework nouveau_fifo_alloc() so the drm can create internal FIFOsBen Skeggs
2007-03-23cleanup more whitespace from ttm mergeDave Airlie
2007-03-23drm: remove second spinlock init for tasklet lockDave Airlie
2007-03-23nouveau: remove unused cruftBen Skeggs
2007-03-21Merge git://proxy01.pd.intel.com:9419/git/mesa/drm into crestlineNian Wu
2007-03-21nouveau: support multiple channels per client (breaks drm interface)Ben Skeggs
2007-03-20Merge git://proxy01.pd.intel.com:9419/git/mesa/drm into crestlineNian Wu
2007-03-20rename badly named defineDave Airlie
2007-03-19remove i830 referenceAlan Hourihane
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-12 23:03:47 +0000
f='#n642'>642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 
/**
 * \file xf86drm.h 
 * OS-independent header for DRM user-level library interface.
 *
 * \author Rickard E. (Rik) Faith <faith@valinux.com>
 */
 
/*
 * 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 <stdarg.h>
#include <sys/types.h>
#include <stdint.h>
#include <drm.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 backward 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 int  drmSize,     *drmSizePtr;	    /**< For mapped regions */
typedef void          *drmAddress, **drmAddressPtr; /**< For mapped regions */

typedef struct _drmServerInfo {
  int (*debug_print)(const char *format, va_list ap);
  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 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];
    /* 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;

/**
 * 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 */
    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;

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 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__)

#ifdef __INTEL_COMPILER
/* this currently generates bad code (missing stop bits)... */
#include <ia64intrin.h>

#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__) || 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, drm_magic_t * magic);
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);
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, drm_magic_t magic);
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           drmMap(int fd,
			    drm_handle_t 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,
			        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);
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);

extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened);
extern void drmCloseOnce(int fd);

#include "xf86mm.h"

#endif
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