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					/**
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					 * \file xf86drm.h 
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					 * OS-independent header for DRM user-level library interface.
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					 *
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					 * \author Rickard E. (Rik) Faith <faith@valinux.com>
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					 */
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					/*
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					 * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
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					 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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					 * All Rights Reserved.
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					 *
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					 * Permission is hereby granted, free of charge, to any person obtaining a
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					 * copy of this software and associated documentation files (the "Software"),
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					 * to deal in the Software without restriction, including without limitation
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					 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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					 * and/or sell copies of the Software, and to permit persons to whom the
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					 * Software is furnished to do so, subject to the following conditions:
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					 *
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					 * The above copyright notice and this permission notice (including the next
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					 * paragraph) shall be included in all copies or substantial portions of the
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					 * Software.
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					 *
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					 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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					 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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					 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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					 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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					 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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					 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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					 * DEALINGS IN THE SOFTWARE.
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					 *
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					 */
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					/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/xf86drm.h,v 1.26 2003/08/16 19:26:37 dawes Exp $ */
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					#ifndef _XF86DRM_H_
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					#define _XF86DRM_H_
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					#include <drm.h>
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									/* Defaults, if nothing set in xf86config */
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					#define DRM_DEV_UID	 0
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					#define DRM_DEV_GID	 0
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					/* Default /dev/dri directory permissions 0755 */
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					#define DRM_DEV_DIRMODE	 	\
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						(S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)
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					#define DRM_DEV_MODE	 (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
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					#define DRM_DIR_NAME  "/dev/dri"
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					#define DRM_DEV_NAME  "%s/card%d"
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					#define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */
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					#define DRM_ERR_NO_DEVICE  (-1001)
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					#define DRM_ERR_NO_ACCESS  (-1002)
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					#define DRM_ERR_NOT_ROOT   (-1003)
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					#define DRM_ERR_INVALID    (-1004)
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					#define DRM_ERR_NO_FD      (-1005)
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					#define DRM_AGP_NO_HANDLE 0
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					typedef unsigned int  drmSize,     *drmSizePtr;	    /**< For mapped regions */
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					typedef void          *drmAddress, **drmAddressPtr; /**< For mapped regions */
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					/**
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					 * Driver version information.
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					 *
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					 * \sa drmGetVersion() and drmSetVersion().
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					 */
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					typedef struct _drmVersion {
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					    int     version_major;        /**< Major version */
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					    int     version_minor;        /**< Minor version */
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					    int     version_patchlevel;   /**< Patch level */
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					    int     name_len; 	          /**< Length of name buffer */
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					    char    *name;	          /**< Name of driver */
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					    int     date_len;             /**< Length of date buffer */
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					    char    *date;                /**< User-space buffer to hold date */
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					    int     desc_len;	          /**< Length of desc buffer */
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					    char    *desc;                /**< User-space buffer to hold desc */
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					} drmVersion, *drmVersionPtr;
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					typedef struct _drmStats {
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					    unsigned long count;	     /**< Number of data */
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					    struct {
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						unsigned long value;	     /**< Value from kernel */
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						const char    *long_format;  /**< Suggested format for long_name */
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						const char    *long_name;    /**< Long name for value */
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						const char    *rate_format;  /**< Suggested format for rate_name */
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						const char    *rate_name;    /**< Short name for value per second */
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						int           isvalue;       /**< True if value (vs. counter) */
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						const char    *mult_names;   /**< Multiplier names (e.g., "KGM") */
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						int           mult;          /**< Multiplier value (e.g., 1024) */
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						int           verbose;       /**< Suggest only in verbose output */
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					    } data[15];
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					} drmStatsT;
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									/* All of these enums *MUST* match with the
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					                                   kernel implementation -- so do *NOT*
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					                                   change them!  (The drmlib implementation
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					                                   will just copy the flags instead of
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					                                   translating them.) */
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					typedef enum {
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					    DRM_FRAME_BUFFER    = 0,      /**< WC, no caching, no core dump */
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					    DRM_REGISTERS       = 1,      /**< no caching, no core dump */
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					    DRM_SHM             = 2,      /**< shared, cached */
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					    DRM_AGP             = 3,	  /**< AGP/GART */
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					    DRM_SCATTER_GATHER  = 4	  /**< PCI scatter/gather */
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					} drmMapType;
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					typedef enum {
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					    DRM_RESTRICTED      = 0x0001, /**< Cannot be mapped to client-virtual */
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					    DRM_READ_ONLY       = 0x0002, /**< Read-only in client-virtual */
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					    DRM_LOCKED          = 0x0004, /**< Physical pages locked */
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					    DRM_KERNEL          = 0x0008, /**< Kernel requires access */
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					    DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */
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					    DRM_CONTAINS_LOCK   = 0x0020, /**< SHM page that contains lock */
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					    DRM_REMOVABLE	= 0x0040  /**< Removable mapping */
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					} drmMapFlags;
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					/**
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					 * \warning These values *MUST* match drm.h
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					 */
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					typedef enum {
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					    /** \name Flags for DMA buffer dispatch */
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					    /*@{*/
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					    DRM_DMA_BLOCK        = 0x01, /**< 
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									  * Block until buffer dispatched.
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									  * 
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									  * \note the buffer may not yet have been
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									  * processed by the hardware -- getting a
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									  * hardware lock with the hardware quiescent
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									  * will ensure that the buffer has been
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									  * processed.
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									  */
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					    DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */
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					    DRM_DMA_PRIORITY     = 0x04, /**< High priority dispatch */
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					    /*@}*/
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					    /** \name Flags for DMA buffer request */
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					    /*@{*/
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					    DRM_DMA_WAIT         = 0x10, /**< Wait for free buffers */
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					    DRM_DMA_SMALLER_OK   = 0x20, /**< Smaller-than-requested buffers OK */
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					    DRM_DMA_LARGER_OK    = 0x40  /**< Larger-than-requested buffers OK */
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					    /*@}*/
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					} drmDMAFlags;
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					typedef enum {
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					    DRM_PAGE_ALIGN       = 0x01,
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					    DRM_AGP_BUFFER       = 0x02,
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					    DRM_SG_BUFFER        = 0x04
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					} drmBufDescFlags;
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					typedef enum {
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					    DRM_LOCK_READY      = 0x01, /**< Wait until hardware is ready for DMA */
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					    DRM_LOCK_QUIESCENT  = 0x02, /**< Wait until hardware quiescent */
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					    DRM_LOCK_FLUSH      = 0x04, /**< Flush this context's DMA queue first */
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					    DRM_LOCK_FLUSH_ALL  = 0x08, /**< Flush all DMA queues first */
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									/* These *HALT* flags aren't supported yet
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					                                   -- they will be used to support the
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					                                   full-screen DGA-like mode. */
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					    DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */
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					    DRM_HALT_CUR_QUEUES = 0x20  /**< Halt all current queues */
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					} drmLockFlags;
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					typedef enum {
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					    DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and
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									     never swapped. */
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					    DRM_CONTEXT_2DONLY    = 0x02  /**< This context is for 2D rendering only. */
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					} drm_context_tFlags, *drm_context_tFlagsPtr;
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					typedef struct _drmBufDesc {
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					    int              count;	  /**< Number of buffers of this size */
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					    int              size;	  /**< Size in bytes */
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					    int              low_mark;	  /**< Low water mark */
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					    int              high_mark;	  /**< High water mark */
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					} drmBufDesc, *drmBufDescPtr;
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					typedef struct _drmBufInfo {
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					    int              count;	  /**< Number of buffers described in list */
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					    drmBufDescPtr    list;	  /**< List of buffer descriptions */
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					} drmBufInfo, *drmBufInfoPtr;
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					typedef struct _drmBuf {
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					    int              idx;	  /**< Index into the master buffer list */
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					    int              total;	  /**< Buffer size */
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					    int              used;	  /**< Amount of buffer in use (for DMA) */
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					    drmAddress       address;	  /**< Address */
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					} drmBuf, *drmBufPtr;
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					/**
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					 * Buffer mapping information.
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					 *
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					 * Used by drmMapBufs() and drmUnmapBufs() to store information about the
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					 * mapped buffers.
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					 */
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					typedef struct _drmBufMap {
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					    int              count;	  /**< Number of buffers mapped */
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					    drmBufPtr        list;	  /**< Buffers */
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					} drmBufMap, *drmBufMapPtr;
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					typedef struct _drmLock {
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					    volatile unsigned int lock;
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					    char                      padding[60];
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					    /* This is big enough for most current (and future?) architectures:
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					       DEC Alpha:              32 bytes
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					       Intel Merced:           ?
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					       Intel P5/PPro/PII/PIII: 32 bytes
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					       Intel StrongARM:        32 bytes
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					       Intel i386/i486:        16 bytes
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					       MIPS:                   32 bytes (?)
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					       Motorola 68k:           16 bytes
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					       Motorola PowerPC:       32 bytes
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					       Sun SPARC:              32 bytes
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					    */
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					} drmLock, *drmLockPtr;
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					/**
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					 * Indices here refer to the offset into
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					 * list in drmBufInfo
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					 */
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					typedef struct _drmDMAReq {
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					    drm_context_t    context;  	  /**< Context handle */
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					    int           send_count;     /**< Number of buffers to send */
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					    int           *send_list;     /**< List of handles to buffers */
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					    int           *send_sizes;    /**< Lengths of data to send, in bytes */
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					    drmDMAFlags   flags;          /**< Flags */
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					    int           request_count;  /**< Number of buffers requested */
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					    int           request_size;	  /**< Desired size of buffers requested */
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					    int           *request_list;  /**< Buffer information */
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					    int           *request_sizes; /**< Minimum acceptable sizes */
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					    int           granted_count;  /**< Number of buffers granted at this size */
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					} drmDMAReq, *drmDMAReqPtr;
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					typedef struct _drmRegion {
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					    drm_handle_t     handle;
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					    unsigned int  offset;
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					    drmSize       size;
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					    drmAddress    map;
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					} drmRegion, *drmRegionPtr;
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					typedef struct _drmTextureRegion {
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					    unsigned char next;
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					    unsigned char prev;
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					    unsigned char in_use;
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					    unsigned char padding;	/**< Explicitly pad this out */
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					    unsigned int  age;
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					} drmTextureRegion, *drmTextureRegionPtr;
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					typedef enum {
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					    DRM_VBLANK_ABSOLUTE = 0x0,	/**< Wait for specific vblank sequence number */
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					    DRM_VBLANK_RELATIVE = 0x1,	/**< Wait for given number of vblanks */
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					    DRM_VBLANK_SIGNAL   = 0x40000000	/* Send signal instead of blocking */
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					} drmVBlankSeqType;
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					typedef struct _drmVBlankReq {
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						drmVBlankSeqType type;
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						unsigned int sequence;
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						unsigned long signal;
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					} drmVBlankReq, *drmVBlankReqPtr;
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					typedef struct _drmVBlankReply {
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						drmVBlankSeqType type;
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						unsigned int sequence;
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						long tval_sec;
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						long tval_usec;
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					} drmVBlankReply, *drmVBlankReplyPtr;
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					typedef union _drmVBlank {
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						drmVBlankReq request;
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						drmVBlankReply reply;
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					} drmVBlank, *drmVBlankPtr;
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					typedef struct _drmSetVersion {
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						int drm_di_major;
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						int drm_di_minor;
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						int drm_dd_major;
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						int drm_dd_minor;
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					} drmSetVersion, *drmSetVersionPtr;
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					#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
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			||||||
 | 
					#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__)
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					#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           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,
 | 
				
			||||||
 | 
								    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,
 | 
				
			||||||
 | 
									 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
 | 
				
			||||||
		Loading…
	
		Reference in New Issue