index : renesas/drm.git	android live master
	libdrm, cloned from git://anongit.freedesktop.org/mesa/drm	Laurent Pinchart

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log msg author committer range

path: root/libdrm

Age	Commit message (Expand)	Author
2008-12-14	intel: Remove the mapped flag, which is adequately covered by bo_gem->virtual.	Eric Anholt
2008-12-10	Revert "Merge branch 'modesetting-gem'"	Jesse Barnes
2008-12-09	Merge branch 'modesetting-gem'	Jesse Barnes
2008-12-08	libdrm: bump to 2.4 for lib version	Dave Airlie
2008-12-03	Merge branch 'master' into modesetting-gem	Jesse Barnes
2008-12-02	intel: Add a function for setting (GTT,GTT) domain, for use by UXA.	Eric Anholt
2008-11-19	Merge branch 'modesetting-gem' of ssh://git.freedesktop.org/git/mesa/drm into...	Jesse Barnes
2008-11-19	libdrm_intel: fix merge error	Jesse Barnes
2008-11-16	libdrm-radeon: add print callback to cs & small fixes	Jerome Glisse
2008-11-15	libdrm-radeon: unref return current BO ptr to reflect BO destruction	Jerome Glisse
2008-11-14	libdrm-radeon: unreference buffer once cs stream is submited or on cs clean	Jerome Glisse
2008-11-14	libdrm-radeon: new tracker tools	Jerome Glisse
2008-11-13	Merge branch 'master' into modesetting-gem	Jesse Barnes
2008-11-13	libdrm_intel: fix warnings on 64 bit	Jesse Barnes
2008-11-13	libdrm: add support for i915 GTT mapping ioctl	Jesse Barnes
2008-11-12	mode: Minor reodering and renaming	Jakob Bornecrantz
2008-11-12	mode: Unify userspace API to uint_t	Jakob Bornecrantz
2008-11-12	mode: Remove hotplug support from ioctl interface	Jakob Bornecrantz
2008-11-12	radeon+libdrm-radeon: change relocation informations	Jerome Glisse
2008-11-10	libdrm-radeon: be verbose on bo failure and cleanup cs a bit	Jerome Glisse
2008-11-09	libdrm-radeon: update libdrm-radeon to match current CS relocation structures	Jerome Glisse
2008-11-07	intel: Restart on interrupt of bo_wait_rendering instead of complaining.	Eric Anholt
2008-11-06	radeon: lib radeon add bo & cs gem backend	Jerome Glisse
2008-11-05	radeon: libdrm_radeon add handle to debug string	Jerome Glisse
2008-11-02	radeon: debug bo	Jerome Glisse
2008-10-30	intel: Rename dri_ and intel_ symbols to drm_intel_.	Eric Anholt
2008-10-29	radeon: libdrm_radeon updates bo & cs interfaces	Jerome Glisse
2008-10-28	intel: Add dri_bufmgr_check_aperture support for bufmgr_gem.	Eric Anholt
2008-10-27	radeon: reloc are backend dependant	Jerome Glisse
2008-10-27	Merge branch 'modesetting-gem' of ssh://git.freedesktop.org/git/mesa/drm into...	Jerome Glisse
2008-10-27	radeon: radeon util library	Jerome Glisse
2008-10-24	mode: Try to settle on a standard for struct fields	Jakob Bornecrantz
2008-10-24	intel: Also total child_size of the target_bos. Partial fix #17964.	Xiang, Haihao
2008-10-16	intel: ioctl is not defined to return -errno	Keith Packard
2008-10-17	link libdrm_intel properly	Dave Airlie
2008-10-17	libdrm: don't depend or link to libdrm_intel	Dave Airlie
2008-10-17	intel: Protect bufmgr objects with a pthread mutex.	Eric Anholt
2008-10-16	intel: avoid deadlock in intel_bufmgr_fake.	Xiang, Haihao
2008-10-14	intel: Fix compile warning.	Eric Anholt
2008-10-14	intel: Add interface for getting tiling mode of a bo.	Eric Anholt
2008-10-13	link libdrm_intel properly	Julien Cristau
2008-10-13	intel: Avoid pthread mutex recursion in bufmgr_fake.	Eric Anholt
2008-10-13	libdrm: don't depend or link to libdrm_intel	Dave Airlie
2008-10-09	Manage fences in user-mode bufmgr_fake to clean buffers	Keith Packard
2008-10-09	intel: Protect bufmgr objects with a pthread mutex.	Eric Anholt
2008-10-09	intel: fix for write_domain and static BOs.	Xiang, Haihao
2008-09-30	intel bufmgr: reinstate buffer handle tracking	Jesse Barnes
2008-09-30	Merge remote branch 'origin/master' into modesetting-gem	Dave Airlie
2008-09-27	intel: Copy data from card memory back to backing store when mapping.	Xiang, Haihao
2008-09-23	intel: Allow up to 15 seconds chewing on one buffer before acknowledging -EBUSY.	Eric Anholt

• [next]

generated by cgit v1.2.3 (git 2.25.1) at 2025-10-03 23:51:38 +0000

/**
 * \file drm.h
 * Header for the Direct Rendering Manager
 *
 * \author Rickard E. (Rik) Faith <faith@valinux.com>
 *
 * \par Acknowledgments:
 * Dec 1999, Richard Henderson <rth@twiddle.net>, move to generic \c cmpxchg.
 */

/*
 * Copyright 1999 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
 * VA LINUX SYSTEMS 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.
 */

/**
 * \mainpage
 *
 * The Direct Rendering Manager (DRM) is a device-independent kernel-level
 * device driver that provides support for the XFree86 Direct Rendering
 * Infrastructure (DRI).
 *
 * The DRM supports the Direct Rendering Infrastructure (DRI) in four major
 * ways:
 *     -# The DRM provides synchronized access to the graphics hardware via
 *        the use of an optimized two-tiered lock.
 *     -# The DRM enforces the DRI security policy for access to the graphics
 *        hardware by only allowing authenticated X11 clients access to
 *        restricted regions of memory.
 *     -# The DRM provides a generic DMA engine, complete with multiple
 *        queues and the ability to detect the need for an OpenGL context
 *        switch.
 *     -# The DRM is extensible via the use of small device-specific modules
 *        that rely extensively on the API exported by the DRM module.
 *
 */

#ifndef _DRM_H_
#define _DRM_H_

#ifndef __user
#define __user
#endif

#ifdef __GNUC__
# define DEPRECATED  __attribute__ ((deprecated))
#else
# define DEPRECATED
#endif

#if defined(__linux__)
#if defined(__KERNEL__)
#include <linux/config.h>
#endif
#include <asm/ioctl.h>		/* For _IO* macros */
#define DRM_IOCTL_NR(n)		_IOC_NR(n)
#define DRM_IOC_VOID		_IOC_NONE
#define DRM_IOC_READ		_IOC_READ
#define DRM_IOC_WRITE		_IOC_WRITE
#define DRM_IOC_READWRITE	_IOC_READ|_IOC_WRITE
#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
#if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__)) && defined(IN_MODULE)
/* Prevent name collision when including sys/ioccom.h */
#undef ioctl
#include <sys/ioccom.h>
#define ioctl(a,b,c)		xf86ioctl(a,b,c)
#else
#include <sys/ioccom.h>
#endif				/* __FreeBSD__ && xf86ioctl */
#define DRM_IOCTL_NR(n)		((n) & 0xff)
#define DRM_IOC_VOID		IOC_VOID
#define DRM_IOC_READ		IOC_OUT
#define DRM_IOC_WRITE		IOC_IN
#define DRM_IOC_READWRITE	IOC_INOUT
#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
#endif

#define XFREE86_VERSION(major,minor,patch,snap) \
		((major << 16) | (minor << 8) | patch)

#ifndef CONFIG_XFREE86_VERSION
#define CONFIG_XFREE86_VERSION XFREE86_VERSION(4,1,0,0)
#endif

#if CONFIG_XFREE86_VERSION < XFREE86_VERSION(4,1,0,0)
#define DRM_PROC_DEVICES "/proc/devices"
#define DRM_PROC_MISC	 "/proc/misc"
#define DRM_PROC_DRM	 "/proc/drm"
#define DRM_DEV_DRM	 "/dev/drm"
#define DRM_DEV_MODE	 (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
#define DRM_DEV_UID	 0
#define DRM_DEV_GID	 0
#endif

#if CONFIG_XFREE86_VERSION >= XFREE86_VERSION(4,1,0,0)
#ifdef __OpenBSD__
#define DRM_MAJOR       81
#endif
#if defined(__linux__) || defined(__NetBSD__)
#define DRM_MAJOR       226
#endif
#define DRM_MAX_MINOR   15
#endif
#define DRM_NAME	"drm"	  /**< Name in kernel, /dev, and /proc */
#define DRM_MIN_ORDER	5	  /**< At least 2^5 bytes = 32 bytes */
#define DRM_MAX_ORDER	22	  /**< Up to 2^22 bytes = 4MB */
#define DRM_RAM_PERCENT 10	  /**< How much system ram can we lock? */

#define _DRM_LOCK_HELD	0x80000000U /**< Hardware lock is held */
#define _DRM_LOCK_CONT	0x40000000U /**< Hardware lock is contended */
#define _DRM_LOCK_IS_HELD(lock)	   ((lock) & _DRM_LOCK_HELD)
#define _DRM_LOCK_IS_CONT(lock)	   ((lock) & _DRM_LOCK_CONT)
#define _DRM_LOCKING_CONTEXT(lock) ((lock) & ~(_DRM_LOCK_HELD|_DRM_LOCK_CONT))

#if defined(__linux__)
#if defined(__KERNEL__)
typedef __u64 drm_u64_t;
#else
typedef unsigned long long drm_u64_t;
#endif

typedef unsigned int drm_handle_t;
#else
typedef unsigned long drm_handle_t;	/**< To mapped regions */
#endif
typedef unsigned int drm_context_t;	/**< GLXContext handle */
typedef unsigned int drm_drawable_t;
typedef unsigned int drm_magic_t;	/**< Magic for authentication */

/**
 * Cliprect.
 *
 * \warning If you change this structure, make sure you change
 * XF86DRIClipRectRec in the server as well
 *
 * \note KW: Actually it's illegal to change either for
 * backwards-compatibility reasons.
 */
typedef struct drm_clip_rect {
	unsigned short x1;
	unsigned short y1;
	unsigned short x2;
	unsigned short y2;
} drm_clip_rect_t;

/**
 * Drawable information.
 */
typedef struct drm_drawable_info {
	unsigned int num_rects;
	drm_clip_rect_t *rects;
} drm_drawable_info_t;

/**
 * Texture region,
 */
typedef struct drm_tex_region {
	unsigned char next;
	unsigned char prev;
	unsigned char in_use;
	unsigned char padding;
	unsigned int age;
} drm_tex_region_t;

/**
 * Hardware lock.
 *
 * The lock structure is a simple cache-line aligned integer.  To avoid
 * processor bus contention on a multiprocessor system, there should not be any
 * other data stored in the same cache line.
 */
typedef struct drm_hw_lock {
	__volatile__ unsigned int lock;		/**< lock variable */
	char padding[60];			/**< Pad to cache line */
} drm_hw_lock_t;

/* This is beyond ugly, and only works on GCC.  However, it allows me to use
 * drm.h in places (i.e., in the X-server) where I can't use size_t.  The real
 * fix is to use uint32_t instead of size_t, but that fix will break existing
 * LP64 (i.e., PowerPC64, SPARC64, IA-64, Alpha, etc.) systems.  That *will*
 * eventually happen, though.  I chose 'unsigned long' to be the fallback type
 * because that works on all the platforms I know about.  Hopefully, the
 * real fix will happen before that bites us.
 */

#ifdef __SIZE_TYPE__
# define DRM_SIZE_T __SIZE_TYPE__
#else
# warning "__SIZE_TYPE__ not defined.  Assuming sizeof(size_t) == sizeof(unsigned long)!"
# define DRM_SIZE_T unsigned long
#endif

/**
 * DRM_IOCTL_VERSION ioctl argument type.
 *
 * \sa drmGetVersion().
 */
typedef struct drm_version {
	int version_major;	  /**< Major version */
	int version_minor;	  /**< Minor version */
	int version_patchlevel;	  /**< Patch level */
	DRM_SIZE_T name_len;	  /**< Length of name buffer */
	char __user *name;		  /**< Name of driver */
	DRM_SIZE_T date_len;	  /**< Length of date buffer */
	char __user *date;		  /**< User-space buffer to hold date */
	DRM_SIZE_T desc_len;	  /**< Length of desc buffer */
	char __user *desc;		  /**< User-space buffer to hold desc */
} drm_version_t;

/**
 * DRM_IOCTL_GET_UNIQUE ioctl argument type.
 *
 * \sa drmGetBusid() and drmSetBusId().
 */
typedef struct drm_unique {
	DRM_SIZE_T unique_len;	  /**< Length of unique */
	char __user *unique;		  /**< Unique name for driver instantiation */
} drm_unique_t;

#undef DRM_SIZE_T

typedef struct drm_list {
	int count;		  /**< Length of user-space structures */
	drm_version_t __user *version;
} drm_list_t;

typedef struct drm_block {
	int unused;
} drm_block_t;

/**
 * DRM_IOCTL_CONTROL ioctl argument type.
 *
 * \sa drmCtlInstHandler() and drmCtlUninstHandler().
 */
typedef struct drm_control {
	enum {
		DRM_ADD_COMMAND,
		DRM_RM_COMMAND,
		DRM_INST_HANDLER,
		DRM_UNINST_HANDLER
	} func;
	int irq;
} drm_control_t;

/**
 * Type of memory to map.
 */
typedef enum drm_map_type {
	_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,  /**< Scatter/gather memory for PCI DMA */
	_DRM_CONSISTENT = 5,	  /**< Consistent memory for PCI DMA */
	_DRM_TTM = 6
} drm_map_type_t;

/**
 * Memory mapping flags.
 */
typedef enum drm_map_flags {
	_DRM_RESTRICTED = 0x01,	     /**< Cannot be mapped to user-virtual */
	_DRM_READ_ONLY = 0x02,
	_DRM_LOCKED = 0x04,	     /**< shared, cached, locked */
	_DRM_KERNEL = 0x08,	     /**< kernel requires access */
	_DRM_WRITE_COMBINING = 0x10, /**< use write-combining if available */
	_DRM_CONTAINS_LOCK = 0x20,   /**< SHM page that contains lock */
	_DRM_REMOVABLE = 0x40	     /**< Removable mapping */
} drm_map_flags_t;

typedef struct drm_ctx_priv_map {
	unsigned int ctx_id;	 /**< Context requesting private mapping */
	void *handle;		 /**< Handle of map */
} drm_ctx_priv_map_t;

/**
 * DRM_IOCTL_GET_MAP, DRM_IOCTL_ADD_MAP and DRM_IOCTL_RM_MAP ioctls
 * argument type.
 *
 * \sa drmAddMap().
 */
typedef struct drm_map {
	unsigned long offset;	 /**< Requested physical address (0 for SAREA)*/
	unsigned long size;	 /**< Requested physical size (bytes) */
	drm_map_type_t type;	 /**< Type of memory to map */
	drm_map_flags_t flags;	 /**< Flags */
	void *handle;		 /**< User-space: "Handle" to pass to mmap() */
				 /**< Kernel-space: kernel-virtual address */
	int mtrr;		 /**< MTRR slot used */
	/*   Private data */
} drm_map_t;

/**
 * DRM_IOCTL_GET_CLIENT ioctl argument type.
 */
typedef struct drm_client {
	int idx;		/**< Which client desired? */
	int auth;		/**< Is client authenticated? */
	unsigned long pid;	/**< Process ID */
	unsigned long uid;	/**< User ID */
	unsigned long magic;	/**< Magic */
	unsigned long iocs;	/**< Ioctl count */
} drm_client_t;

typedef enum {
	_DRM_STAT_LOCK,
	_DRM_STAT_OPENS,
	_DRM_STAT_CLOSES,
	_DRM_STAT_IOCTLS,
	_DRM_STAT_LOCKS,
	_DRM_STAT_UNLOCKS,
	_DRM_STAT_VALUE,	/**< Generic value */
	_DRM_STAT_BYTE,		/**< Generic byte counter (1024bytes/K) */
	_DRM_STAT_COUNT,	/**< Generic non-byte counter (1000/k) */

	_DRM_STAT_IRQ,		/**< IRQ */
	_DRM_STAT_PRIMARY,	/**< Primary DMA bytes */
	_DRM_STAT_SECONDARY,	/**< Secondary DMA bytes */
	_DRM_STAT_DMA,		/**< DMA */
	_DRM_STAT_SPECIAL,	/**< Special DMA (e.g., priority or polled) */
	_DRM_STAT_MISSED	/**< Missed DMA opportunity */
	    /* Add to the *END* of the list */
} drm_stat_type_t;

/**
 * DRM_IOCTL_GET_STATS ioctl argument type.
 */
typedef struct drm_stats {
	unsigned long count;
	struct {
		unsigned long value;
		drm_stat_type_t type;
	} data[15];
} drm_stats_t;

/**
 * Hardware locking flags.
 */
typedef enum drm_lock_flags {
	_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 */
} drm_lock_flags_t;

/**
 * DRM_IOCTL_LOCK, DRM_IOCTL_UNLOCK and DRM_IOCTL_FINISH ioctl argument type.
 *
 * \sa drmGetLock() and drmUnlock().
 */
typedef struct drm_lock {
	int context;
	drm_lock_flags_t flags;
} drm_lock_t;

/**
 * DMA flags
 *
 * \warning
 * These values \e must match xf86drm.h.
 *
 * \sa drm_dma.
 */
typedef enum drm_dma_flags {
	/* 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 */
} drm_dma_flags_t;

/**
 * DRM_IOCTL_ADD_BUFS and DRM_IOCTL_MARK_BUFS ioctl argument type.
 *
 * \sa drmAddBufs().
 */
typedef struct drm_buf_desc {
	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 */
	enum {
		_DRM_PAGE_ALIGN = 0x01,	/**< Align on page boundaries for DMA */
		_DRM_AGP_BUFFER = 0x02,	/**< Buffer is in AGP space */
		_DRM_SG_BUFFER  = 0x04,	/**< Scatter/gather memory buffer */
		_DRM_FB_BUFFER  = 0x08, /**< Buffer is in frame buffer */
		_DRM_PCI_BUFFER_RO = 0x10 /**< Map PCI DMA buffer read-only */
	} flags;
	unsigned long agp_start; /**<
				  * Start address of where the AGP buffers are
				  * in the AGP aperture
				  */
} drm_buf_desc_t;

/**
 * DRM_IOCTL_INFO_BUFS ioctl argument type.
 */
typedef struct drm_buf_info {
	int count;		  /**< Number of buffers described in list */
	drm_buf_desc_t __user *list;	  /**< List of buffer descriptions */
} drm_buf_info_t;

/**
 * DRM_IOCTL_FREE_BUFS ioctl argument type.
 */
typedef struct drm_buf_free {
	int count;
	int __user *list;
} drm_buf_free_t;

/**
 * Buffer information
 *
 * \sa drm_buf_map.
 */
typedef struct drm_buf_pub {
	int idx;		       /**< Index into the master buffer list */
	int total;		       /**< Buffer size */
	int used;		       /**< Amount of buffer in use (for DMA) */
	void __user *address;	       /**< Address of buffer */
} drm_buf_pub_t;

/**
 * DRM_IOCTL_MAP_BUFS ioctl argument type.
 */
typedef struct drm_buf_map {
	int count;		/**< Length of the buffer list */
#if defined(__cplusplus)
	void __user *c_virtual;
#else
	void __user *virtual;		/**< Mmap'd area in user-virtual */
#endif
	drm_buf_pub_t __user *list;	/**< Buffer information */
} drm_buf_map_t;

/**
 * DRM_IOCTL_DMA ioctl argument type.
 *
 * Indices here refer to the offset into the buffer list in drm_buf_get.
 *
 * \sa drmDMA().
 */
typedef struct drm_dma {
	int context;			  /**< Context handle */
	int send_count;			  /**< Number of buffers to send */
	int __user *send_indices;	  /**< List of handles to buffers */
	int __user *send_sizes;		  /**< Lengths of data to send */
	drm_dma_flags_t flags;		  /**< Flags */
	int request_count;		  /**< Number of buffers requested */
	int request_size;		  /**< Desired size for buffers */
	int __user *request_indices;	 /**< Buffer information */
	int __user *request_sizes;
	int granted_count;		  /**< Number of buffers granted */
} drm_dma_t;

typedef enum {
	_DRM_CONTEXT_PRESERVED = 0x01,
	_DRM_CONTEXT_2DONLY = 0x02
} drm_ctx_flags_t;

/**
 * DRM_IOCTL_ADD_CTX ioctl argument type.
 *
 * \sa drmCreateContext() and drmDestroyContext().
 */
typedef struct drm_ctx {
	drm_context_t handle;
	drm_ctx_flags_t flags;
} drm_ctx_t;

/**
 * DRM_IOCTL_RES_CTX ioctl argument type.
 */
typedef struct drm_ctx_res {
	int count;
	drm_ctx_t __user *contexts;
} drm_ctx_res_t;

/**
 * DRM_IOCTL_ADD_DRAW and DRM_IOCTL_RM_DRAW ioctl argument type.
 */
typedef struct drm_draw {
	drm_drawable_t handle;
} drm_draw_t;

/**
 * DRM_IOCTL_UPDATE_DRAW ioctl argument type.
 */
typedef enum {
	DRM_DRAWABLE_CLIPRECTS,
} drm_drawable_info_type_t;

typedef struct drm_update_draw {
	drm_drawable_t handle;
	unsigned int type;
	unsigned int num;
	unsigned long long data;
} drm_update_draw_t;

/**
 * DRM_IOCTL_GET_MAGIC and DRM_IOCTL_AUTH_MAGIC ioctl argument type.
 */
typedef struct drm_auth {
	drm_magic_t magic;
} drm_auth_t;

/**
 * DRM_IOCTL_IRQ_BUSID ioctl argument type.
 *
 * \sa drmGetInterruptFromBusID().
 */
typedef struct drm_irq_busid {
	int irq;	/**< IRQ number */
	int busnum;	/**< bus number */
	int devnum;	/**< device number */
	int funcnum;	/**< function number */
} drm_irq_busid_t;

typedef enum {
	_DRM_VBLANK_ABSOLUTE = 0x0,	/**< Wait for specific vblank sequence number */
	_DRM_VBLANK_RELATIVE = 0x1,	/**< Wait for given number of vblanks */
	_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 */
} drm_vblank_seq_type_t;

#define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE)
#define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_SIGNAL | _DRM_VBLANK_SECONDARY | \
				_DRM_VBLANK_NEXTONMISS)

struct drm_wait_vblank_request {
	drm_vblank_seq_type_t type;
	unsigned int sequence;
	unsigned long signal;
};

struct drm_wait_vblank_reply {
	drm_vblank_seq_type_t type;
	unsigned int sequence;
	long tval_sec;
	long tval_usec;
};

/**
 * DRM_IOCTL_WAIT_VBLANK ioctl argument type.
 *
 * \sa drmWaitVBlank().
 */
typedef union drm_wait_vblank {
	struct drm_wait_vblank_request request;
	struct drm_wait_vblank_reply reply;
} drm_wait_vblank_t;

/**
 * DRM_IOCTL_AGP_ENABLE ioctl argument type.
 *
 * \sa drmAgpEnable().
 */
typedef struct drm_agp_mode {
	unsigned long mode;	/**< AGP mode */
} drm_agp_mode_t;

/**
 * DRM_IOCTL_AGP_ALLOC and DRM_IOCTL_AGP_FREE ioctls argument type.
 *
 * \sa drmAgpAlloc() and drmAgpFree().
 */
typedef struct drm_agp_buffer {
	unsigned long size;	/**< In bytes -- will round to page boundary */
	unsigned long handle;	/**< Used for binding / unbinding */
	unsigned long type;	/**< Type of memory to allocate */
	unsigned long physical;	/**< Physical used by i810 */
} drm_agp_buffer_t;

/**
 * DRM_IOCTL_AGP_BIND and DRM_IOCTL_AGP_UNBIND ioctls argument type.
 *
 * \sa drmAgpBind() and drmAgpUnbind().
 */
typedef struct drm_agp_binding {
	unsigned long handle;	/**< From drm_agp_buffer */
	unsigned long offset;	/**< In bytes -- will round to page boundary */
} drm_agp_binding_t;

/**
 * DRM_IOCTL_AGP_INFO ioctl argument type.
 *
 * \sa drmAgpVersionMajor(), drmAgpVersionMinor(), drmAgpGetMode(),
 * drmAgpBase(), drmAgpSize(), drmAgpMemoryUsed(), drmAgpMemoryAvail(),
 * drmAgpVendorId() and drmAgpDeviceId().
 */
typedef struct drm_agp_info {
	int agp_version_major;
	int agp_version_minor;
	unsigned long mode;
	unsigned long aperture_base;   /**< physical address */
	unsigned long aperture_size;   /**< bytes */
	unsigned long memory_allowed;  /**< bytes */
	unsigned long memory_used;

	/** \name PCI information */
	/*@{ */
	unsigned short id_vendor;
	unsigned short id_device;
	/*@} */
} drm_agp_info_t;

/**
 * DRM_IOCTL_SG_ALLOC ioctl argument type.
 */
typedef struct drm_scatter_gather {
	unsigned long size;	/**< In bytes -- will round to page boundary */
	unsigned long handle;	/**< Used for mapping / unmapping */
} drm_scatter_gather_t;

/**
 * DRM_IOCTL_SET_VERSION ioctl argument type.
 */
typedef struct drm_set_version {
	int drm_di_major;
	int drm_di_minor;
	int drm_dd_major;
	int drm_dd_minor;
} drm_set_version_t;

#ifdef __linux__

#define DRM_FENCE_FLAG_EMIT                0x00000001
#define DRM_FENCE_FLAG_SHAREABLE           0x00000002
#define DRM_FENCE_FLAG_WAIT_LAZY           0x00000004
#define DRM_FENCE_FLAG_WAIT_IGNORE_SIGNALS 0x00000008

/* Reserved for driver use */
#define DRM_FENCE_MASK_DRIVER              0xFF000000

#define DRM_FENCE_TYPE_EXE                 0x00000001

typedef struct drm_fence_arg {
	unsigned handle;
        int class;
	unsigned type;
	unsigned flags;
	unsigned signaled;
	unsigned expand_pad[4]; /*Future expansion */
	enum {
		drm_fence_create,
		drm_fence_destroy,
		drm_fence_reference,
		drm_fence_unreference,
		drm_fence_signaled,
		drm_fence_flush,
		drm_fence_wait,
		drm_fence_emit,
		drm_fence_buffers
	} op;
} drm_fence_arg_t;

/* Buffer permissions, referring to how the GPU uses the buffers.
   these translate to fence types used for the buffers. 
   Typically a texture buffer is read, A destination buffer is write and
   a command (batch-) buffer is exe. Can be or-ed together. */

#define DRM_BO_FLAG_READ        0x00000001
#define DRM_BO_FLAG_WRITE       0x00000002
#define DRM_BO_FLAG_EXE         0x00000004

/*
 * Status flags. Can be read to determine the actual state of a buffer.
 */

/*