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      1 /**
      2  * \file drm.h
      3  * Header for the Direct Rendering Manager
      4  *
      5  * \author Rickard E. (Rik) Faith <faith (at) valinux.com>
      6  *
      7  * \par Acknowledgments:
      8  * Dec 1999, Richard Henderson <rth (at) twiddle.net>, move to generic \c cmpxchg.
      9  */
     10 
     11 /*
     12  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
     13  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
     14  * All rights reserved.
     15  *
     16  * Permission is hereby granted, free of charge, to any person obtaining a
     17  * copy of this software and associated documentation files (the "Software"),
     18  * to deal in the Software without restriction, including without limitation
     19  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     20  * and/or sell copies of the Software, and to permit persons to whom the
     21  * Software is furnished to do so, subject to the following conditions:
     22  *
     23  * The above copyright notice and this permission notice (including the next
     24  * paragraph) shall be included in all copies or substantial portions of the
     25  * Software.
     26  *
     27  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     28  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     29  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     30  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     31  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     32  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     33  * OTHER DEALINGS IN THE SOFTWARE.
     34  */
     35 
     36 /**
     37  * \mainpage
     38  *
     39  * The Direct Rendering Manager (DRM) is a device-independent kernel-level
     40  * device driver that provides support for the XFree86 Direct Rendering
     41  * Infrastructure (DRI).
     42  *
     43  * The DRM supports the Direct Rendering Infrastructure (DRI) in four major
     44  * ways:
     45  *     -# The DRM provides synchronized access to the graphics hardware via
     46  *        the use of an optimized two-tiered lock.
     47  *     -# The DRM enforces the DRI security policy for access to the graphics
     48  *        hardware by only allowing authenticated X11 clients access to
     49  *        restricted regions of memory.
     50  *     -# The DRM provides a generic DMA engine, complete with multiple
     51  *        queues and the ability to detect the need for an OpenGL context
     52  *        switch.
     53  *     -# The DRM is extensible via the use of small device-specific modules
     54  *        that rely extensively on the API exported by the DRM module.
     55  *
     56  */
     57 
     58 #ifndef _DRM_H_
     59 #define _DRM_H_
     60 
     61 #ifndef __user
     62 #define __user
     63 #endif
     64 #ifndef __iomem
     65 #define __iomem
     66 #endif
     67 
     68 #ifdef __GNUC__
     69 # define DEPRECATED  __attribute__ ((deprecated))
     70 #else
     71 # define DEPRECATED
     72 # ifndef __FUNCTION__
     73 #  define __FUNCTION__ __func__ /* C99 */
     74 # endif
     75 # ifndef __volatile__
     76 #  define __volatile__ volatile
     77 # endif
     78 #endif
     79 
     80 #if defined(__linux__)
     81 #include <asm/ioctl.h>		/* For _IO* macros */
     82 #define DRM_IOCTL_NR(n)		_IOC_NR(n)
     83 #define DRM_IOC_VOID		_IOC_NONE
     84 #define DRM_IOC_READ		_IOC_READ
     85 #define DRM_IOC_WRITE		_IOC_WRITE
     86 #define DRM_IOC_READWRITE	_IOC_READ|_IOC_WRITE
     87 #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
     88 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
     89 #include <sys/ioccom.h>
     90 #define DRM_IOCTL_NR(n)		((n) & 0xff)
     91 #define DRM_IOC_VOID		IOC_VOID
     92 #define DRM_IOC_READ		IOC_OUT
     93 #define DRM_IOC_WRITE		IOC_IN
     94 #define DRM_IOC_READWRITE	IOC_INOUT
     95 #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
     96 #endif
     97 
     98 #ifdef __OpenBSD__
     99 #define DRM_MAJOR       81
    100 #endif
    101 #if defined(__linux__) || defined(__NetBSD__)
    102 #define DRM_MAJOR       226
    103 #endif
    104 #define DRM_MAX_MINOR   15
    105 
    106 #define DRM_NAME	"drm"	  /**< Name in kernel, /dev, and /proc */
    107 #define DRM_MIN_ORDER	5	  /**< At least 2^5 bytes = 32 bytes */
    108 #define DRM_MAX_ORDER	22	  /**< Up to 2^22 bytes = 4MB */
    109 #define DRM_RAM_PERCENT 10	  /**< How much system ram can we lock? */
    110 
    111 #define _DRM_LOCK_HELD	0x80000000U /**< Hardware lock is held */
    112 #define _DRM_LOCK_CONT	0x40000000U /**< Hardware lock is contended */
    113 #define _DRM_LOCK_IS_HELD(lock)	   ((lock) & _DRM_LOCK_HELD)
    114 #define _DRM_LOCK_IS_CONT(lock)	   ((lock) & _DRM_LOCK_CONT)
    115 #define _DRM_LOCKING_CONTEXT(lock) ((lock) & ~(_DRM_LOCK_HELD|_DRM_LOCK_CONT))
    116 
    117 #if defined(__linux__)
    118 typedef unsigned int drm_handle_t;
    119 #else
    120 #include <sys/types.h>
    121 typedef unsigned long drm_handle_t;	/**< To mapped regions */
    122 #endif
    123 typedef unsigned int drm_context_t;	/**< GLXContext handle */
    124 typedef unsigned int drm_drawable_t;
    125 typedef unsigned int drm_magic_t;	/**< Magic for authentication */
    126 
    127 /**
    128  * Cliprect.
    129  *
    130  * \warning If you change this structure, make sure you change
    131  * XF86DRIClipRectRec in the server as well
    132  *
    133  * \note KW: Actually it's illegal to change either for
    134  * backwards-compatibility reasons.
    135  */
    136 struct drm_clip_rect {
    137 	unsigned short x1;
    138 	unsigned short y1;
    139 	unsigned short x2;
    140 	unsigned short y2;
    141 };
    142 
    143 /**
    144  * Texture region,
    145  */
    146 struct drm_tex_region {
    147 	unsigned char next;
    148 	unsigned char prev;
    149 	unsigned char in_use;
    150 	unsigned char padding;
    151 	unsigned int age;
    152 };
    153 
    154 /**
    155  * Hardware lock.
    156  *
    157  * The lock structure is a simple cache-line aligned integer.  To avoid
    158  * processor bus contention on a multiprocessor system, there should not be any
    159  * other data stored in the same cache line.
    160  */
    161 struct drm_hw_lock {
    162 	__volatile__ unsigned int lock;		/**< lock variable */
    163 	char padding[60];			/**< Pad to cache line */
    164 };
    165 
    166 /* This is beyond ugly, and only works on GCC.  However, it allows me to use
    167  * drm.h in places (i.e., in the X-server) where I can't use size_t.  The real
    168  * fix is to use uint32_t instead of size_t, but that fix will break existing
    169  * LP64 (i.e., PowerPC64, SPARC64, IA-64, Alpha, etc.) systems.  That *will*
    170  * eventually happen, though.  I chose 'unsigned long' to be the fallback type
    171  * because that works on all the platforms I know about.  Hopefully, the
    172  * real fix will happen before that bites us.
    173  */
    174 
    175 #ifdef __SIZE_TYPE__
    176 # define DRM_SIZE_T __SIZE_TYPE__
    177 #else
    178 # warning "__SIZE_TYPE__ not defined.  Assuming sizeof(size_t) == sizeof(unsigned long)!"
    179 # define DRM_SIZE_T unsigned long
    180 #endif
    181 
    182 /**
    183  * DRM_IOCTL_VERSION ioctl argument type.
    184  *
    185  * \sa drmGetVersion().
    186  */
    187 struct drm_version {
    188 	int version_major;	  /**< Major version */
    189 	int version_minor;	  /**< Minor version */
    190 	int version_patchlevel;	  /**< Patch level */
    191 	DRM_SIZE_T name_len;	  /**< Length of name buffer */
    192 	char __user *name;		  /**< Name of driver */
    193 	DRM_SIZE_T date_len;	  /**< Length of date buffer */
    194 	char __user *date;		  /**< User-space buffer to hold date */
    195 	DRM_SIZE_T desc_len;	  /**< Length of desc buffer */
    196 	char __user *desc;		  /**< User-space buffer to hold desc */
    197 };
    198 
    199 /**
    200  * DRM_IOCTL_GET_UNIQUE ioctl argument type.
    201  *
    202  * \sa drmGetBusid() and drmSetBusId().
    203  */
    204 struct drm_unique {
    205 	DRM_SIZE_T unique_len;	  /**< Length of unique */
    206 	char __user *unique;		  /**< Unique name for driver instantiation */
    207 };
    208 
    209 #undef DRM_SIZE_T
    210 
    211 struct drm_list {
    212 	int count;		  /**< Length of user-space structures */
    213 	struct drm_version __user *version;
    214 };
    215 
    216 struct drm_block {
    217 	int unused;
    218 };
    219 
    220 /**
    221  * DRM_IOCTL_CONTROL ioctl argument type.
    222  *
    223  * \sa drmCtlInstHandler() and drmCtlUninstHandler().
    224  */
    225 struct drm_control {
    226 	enum {
    227 		DRM_ADD_COMMAND,
    228 		DRM_RM_COMMAND,
    229 		DRM_INST_HANDLER,
    230 		DRM_UNINST_HANDLER
    231 	} func;
    232 	int irq;
    233 };
    234 
    235 /**
    236  * Type of memory to map.
    237  */
    238 enum drm_map_type {
    239 	_DRM_FRAME_BUFFER = 0,	  /**< WC (no caching), no core dump */
    240 	_DRM_REGISTERS = 1,	  /**< no caching, no core dump */
    241 	_DRM_SHM = 2,		  /**< shared, cached */
    242 	_DRM_AGP = 3,		  /**< AGP/GART */
    243 	_DRM_SCATTER_GATHER = 4,  /**< Scatter/gather memory for PCI DMA */
    244 	_DRM_CONSISTENT = 5,	  /**< Consistent memory for PCI DMA */
    245 	_DRM_GEM = 6,
    246 	_DRM_TTM = 7,
    247 };
    248 
    249 /**
    250  * Memory mapping flags.
    251  */
    252 enum drm_map_flags {
    253 	_DRM_RESTRICTED = 0x01,	     /**< Cannot be mapped to user-virtual */
    254 	_DRM_READ_ONLY = 0x02,
    255 	_DRM_LOCKED = 0x04,	     /**< shared, cached, locked */
    256 	_DRM_KERNEL = 0x08,	     /**< kernel requires access */
    257 	_DRM_WRITE_COMBINING = 0x10, /**< use write-combining if available */
    258 	_DRM_CONTAINS_LOCK = 0x20,   /**< SHM page that contains lock */
    259 	_DRM_REMOVABLE = 0x40,	     /**< Removable mapping */
    260 	_DRM_DRIVER = 0x80	     /**< Managed by driver */
    261 };
    262 
    263 struct drm_ctx_priv_map {
    264 	unsigned int ctx_id;	 /**< Context requesting private mapping */
    265 	void *handle;		 /**< Handle of map */
    266 };
    267 
    268 /**
    269  * DRM_IOCTL_GET_MAP, DRM_IOCTL_ADD_MAP and DRM_IOCTL_RM_MAP ioctls
    270  * argument type.
    271  *
    272  * \sa drmAddMap().
    273  */
    274 struct drm_map {
    275 	unsigned long offset;	 /**< Requested physical address (0 for SAREA)*/
    276 	unsigned long size;	 /**< Requested physical size (bytes) */
    277 	enum drm_map_type type;	 /**< Type of memory to map */
    278 	enum drm_map_flags flags;	 /**< Flags */
    279 	void *handle;		 /**< User-space: "Handle" to pass to mmap() */
    280 				 /**< Kernel-space: kernel-virtual address */
    281 	int mtrr;		 /**< MTRR slot used */
    282 	/*   Private data */
    283 };
    284 
    285 /**
    286  * DRM_IOCTL_GET_CLIENT ioctl argument type.
    287  */
    288 struct drm_client {
    289 	int idx;		/**< Which client desired? */
    290 	int auth;		/**< Is client authenticated? */
    291 	unsigned long pid;	/**< Process ID */
    292 	unsigned long uid;	/**< User ID */
    293 	unsigned long magic;	/**< Magic */
    294 	unsigned long iocs;	/**< Ioctl count */
    295 };
    296 
    297 enum drm_stat_type {
    298 	_DRM_STAT_LOCK,
    299 	_DRM_STAT_OPENS,
    300 	_DRM_STAT_CLOSES,
    301 	_DRM_STAT_IOCTLS,
    302 	_DRM_STAT_LOCKS,
    303 	_DRM_STAT_UNLOCKS,
    304 	_DRM_STAT_VALUE,	/**< Generic value */
    305 	_DRM_STAT_BYTE,		/**< Generic byte counter (1024bytes/K) */
    306 	_DRM_STAT_COUNT,	/**< Generic non-byte counter (1000/k) */
    307 
    308 	_DRM_STAT_IRQ,		/**< IRQ */
    309 	_DRM_STAT_PRIMARY,	/**< Primary DMA bytes */
    310 	_DRM_STAT_SECONDARY,	/**< Secondary DMA bytes */
    311 	_DRM_STAT_DMA,		/**< DMA */
    312 	_DRM_STAT_SPECIAL,	/**< Special DMA (e.g., priority or polled) */
    313 	_DRM_STAT_MISSED	/**< Missed DMA opportunity */
    314 	    /* Add to the *END* of the list */
    315 };
    316 
    317 /**
    318  * DRM_IOCTL_GET_STATS ioctl argument type.
    319  */
    320 struct drm_stats {
    321 	unsigned long count;
    322 	struct {
    323 		unsigned long value;
    324 		enum drm_stat_type type;
    325 	} data[15];
    326 };
    327 
    328 /**
    329  * Hardware locking flags.
    330  */
    331 enum drm_lock_flags {
    332 	_DRM_LOCK_READY = 0x01,	     /**< Wait until hardware is ready for DMA */
    333 	_DRM_LOCK_QUIESCENT = 0x02,  /**< Wait until hardware quiescent */
    334 	_DRM_LOCK_FLUSH = 0x04,	     /**< Flush this context's DMA queue first */
    335 	_DRM_LOCK_FLUSH_ALL = 0x08,  /**< Flush all DMA queues first */
    336 	/* These *HALT* flags aren't supported yet
    337 	   -- they will be used to support the
    338 	   full-screen DGA-like mode. */
    339 	_DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */
    340 	_DRM_HALT_CUR_QUEUES = 0x20  /**< Halt all current queues */
    341 };
    342 
    343 /**
    344  * DRM_IOCTL_LOCK, DRM_IOCTL_UNLOCK and DRM_IOCTL_FINISH ioctl argument type.
    345  *
    346  * \sa drmGetLock() and drmUnlock().
    347  */
    348 struct drm_lock {
    349 	int context;
    350 	enum drm_lock_flags flags;
    351 };
    352 
    353 /**
    354  * DMA flags
    355  *
    356  * \warning
    357  * These values \e must match xf86drm.h.
    358  *
    359  * \sa drm_dma.
    360  */
    361 enum drm_dma_flags {
    362 	/* Flags for DMA buffer dispatch */
    363 	_DRM_DMA_BLOCK = 0x01,	      /**<
    364 				       * Block until buffer dispatched.
    365 				       *
    366 				       * \note The buffer may not yet have
    367 				       * been processed by the hardware --
    368 				       * getting a hardware lock with the
    369 				       * hardware quiescent will ensure
    370 				       * that the buffer has been
    371 				       * processed.
    372 				       */
    373 	_DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */
    374 	_DRM_DMA_PRIORITY = 0x04,     /**< High priority dispatch */
    375 
    376 	/* Flags for DMA buffer request */
    377 	_DRM_DMA_WAIT = 0x10,	      /**< Wait for free buffers */
    378 	_DRM_DMA_SMALLER_OK = 0x20,   /**< Smaller-than-requested buffers OK */
    379 	_DRM_DMA_LARGER_OK = 0x40     /**< Larger-than-requested buffers OK */
    380 };
    381 
    382 /**
    383  * DRM_IOCTL_ADD_BUFS and DRM_IOCTL_MARK_BUFS ioctl argument type.
    384  *
    385  * \sa drmAddBufs().
    386  */
    387 struct drm_buf_desc {
    388 	int count;		 /**< Number of buffers of this size */
    389 	int size;		 /**< Size in bytes */
    390 	int low_mark;		 /**< Low water mark */
    391 	int high_mark;		 /**< High water mark */
    392 	enum {
    393 		_DRM_PAGE_ALIGN = 0x01,	/**< Align on page boundaries for DMA */
    394 		_DRM_AGP_BUFFER = 0x02,	/**< Buffer is in AGP space */
    395 		_DRM_SG_BUFFER  = 0x04,	/**< Scatter/gather memory buffer */
    396 		_DRM_FB_BUFFER  = 0x08, /**< Buffer is in frame buffer */
    397 		_DRM_PCI_BUFFER_RO = 0x10 /**< Map PCI DMA buffer read-only */
    398 	} flags;
    399 	unsigned long agp_start; /**<
    400 				  * Start address of where the AGP buffers are
    401 				  * in the AGP aperture
    402 				  */
    403 };
    404 
    405 /**
    406  * DRM_IOCTL_INFO_BUFS ioctl argument type.
    407  */
    408 struct drm_buf_info {
    409 	int count;		  /**< Number of buffers described in list */
    410 	struct drm_buf_desc __user *list; /**< List of buffer descriptions */
    411 };
    412 
    413 /**
    414  * DRM_IOCTL_FREE_BUFS ioctl argument type.
    415  */
    416 struct drm_buf_free {
    417 	int count;
    418 	int __user *list;
    419 };
    420 
    421 /**
    422  * Buffer information
    423  *
    424  * \sa drm_buf_map.
    425  */
    426 struct drm_buf_pub {
    427 	int idx;		       /**< Index into the master buffer list */
    428 	int total;		       /**< Buffer size */
    429 	int used;		       /**< Amount of buffer in use (for DMA) */
    430 	void __user *address;	       /**< Address of buffer */
    431 };
    432 
    433 /**
    434  * DRM_IOCTL_MAP_BUFS ioctl argument type.
    435  */
    436 struct drm_buf_map {
    437 	int count;		/**< Length of the buffer list */
    438 #if defined(__cplusplus)
    439 	void __user *c_virtual;
    440 #else
    441 	void __user *virtual;		/**< Mmap'd area in user-virtual */
    442 #endif
    443 	struct drm_buf_pub __user *list;	/**< Buffer information */
    444 };
    445 
    446 /**
    447  * DRM_IOCTL_DMA ioctl argument type.
    448  *
    449  * Indices here refer to the offset into the buffer list in drm_buf_get.
    450  *
    451  * \sa drmDMA().
    452  */
    453 struct drm_dma {
    454 	int context;			  /**< Context handle */
    455 	int send_count;			  /**< Number of buffers to send */
    456 	int __user *send_indices;	  /**< List of handles to buffers */
    457 	int __user *send_sizes;		  /**< Lengths of data to send */
    458 	enum drm_dma_flags flags;	  /**< Flags */
    459 	int request_count;		  /**< Number of buffers requested */
    460 	int request_size;		  /**< Desired size for buffers */
    461 	int __user *request_indices;	 /**< Buffer information */
    462 	int __user *request_sizes;
    463 	int granted_count;		  /**< Number of buffers granted */
    464 };
    465 
    466 enum drm_ctx_flags {
    467 	_DRM_CONTEXT_PRESERVED = 0x01,
    468 	_DRM_CONTEXT_2DONLY = 0x02
    469 };
    470 
    471 /**
    472  * DRM_IOCTL_ADD_CTX ioctl argument type.
    473  *
    474  * \sa drmCreateContext() and drmDestroyContext().
    475  */
    476 struct drm_ctx {
    477 	drm_context_t handle;
    478 	enum drm_ctx_flags flags;
    479 };
    480 
    481 /**
    482  * DRM_IOCTL_RES_CTX ioctl argument type.
    483  */
    484 struct drm_ctx_res {
    485 	int count;
    486 	struct drm_ctx __user *contexts;
    487 };
    488 
    489 /**
    490  * DRM_IOCTL_ADD_DRAW and DRM_IOCTL_RM_DRAW ioctl argument type.
    491  */
    492 struct drm_draw {
    493 	drm_drawable_t handle;
    494 };
    495 
    496 /**
    497  * DRM_IOCTL_UPDATE_DRAW ioctl argument type.
    498  */
    499 typedef enum {
    500 	DRM_DRAWABLE_CLIPRECTS,
    501 } drm_drawable_info_type_t;
    502 
    503 struct drm_update_draw {
    504 	drm_drawable_t handle;
    505 	unsigned int type;
    506 	unsigned int num;
    507 	unsigned long long data;
    508 };
    509 
    510 /**
    511  * DRM_IOCTL_GET_MAGIC and DRM_IOCTL_AUTH_MAGIC ioctl argument type.
    512  */
    513 struct drm_auth {
    514 	drm_magic_t magic;
    515 };
    516 
    517 /**
    518  * DRM_IOCTL_IRQ_BUSID ioctl argument type.
    519  *
    520  * \sa drmGetInterruptFromBusID().
    521  */
    522 struct drm_irq_busid {
    523 	int irq;	/**< IRQ number */
    524 	int busnum;	/**< bus number */
    525 	int devnum;	/**< device number */
    526 	int funcnum;	/**< function number */
    527 };
    528 
    529 enum drm_vblank_seq_type {
    530 	_DRM_VBLANK_ABSOLUTE = 0x0,	/**< Wait for specific vblank sequence number */
    531 	_DRM_VBLANK_RELATIVE = 0x1,	/**< Wait for given number of vblanks */
    532 	_DRM_VBLANK_FLIP = 0x8000000,	/**< Scheduled buffer swap should flip */
    533 	_DRM_VBLANK_NEXTONMISS = 0x10000000,	/**< If missed, wait for next vblank */
    534 	_DRM_VBLANK_SECONDARY = 0x20000000,	/**< Secondary display controller */
    535 	_DRM_VBLANK_SIGNAL = 0x40000000	/**< Send signal instead of blocking */
    536 };
    537 
    538 #define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE)
    539 #define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_SIGNAL | _DRM_VBLANK_SECONDARY | \
    540 				_DRM_VBLANK_NEXTONMISS)
    541 
    542 struct drm_wait_vblank_request {
    543 	enum drm_vblank_seq_type type;
    544 	unsigned int sequence;
    545 	unsigned long signal;
    546 };
    547 
    548 struct drm_wait_vblank_reply {
    549 	enum drm_vblank_seq_type type;
    550 	unsigned int sequence;
    551 	long tval_sec;
    552 	long tval_usec;
    553 };
    554 
    555 /**
    556  * DRM_IOCTL_WAIT_VBLANK ioctl argument type.
    557  *
    558  * \sa drmWaitVBlank().
    559  */
    560 union drm_wait_vblank {
    561 	struct drm_wait_vblank_request request;
    562 	struct drm_wait_vblank_reply reply;
    563 };
    564 
    565 
    566 #define _DRM_PRE_MODESET 1
    567 #define _DRM_POST_MODESET 2
    568 
    569 /**
    570  * DRM_IOCTL_MODESET_CTL ioctl argument type
    571  *
    572  * \sa drmModesetCtl().
    573  */
    574 struct drm_modeset_ctl {
    575 	uint32_t crtc;
    576 	uint32_t cmd;
    577 };
    578 
    579 /**
    580  * DRM_IOCTL_AGP_ENABLE ioctl argument type.
    581  *
    582  * \sa drmAgpEnable().
    583  */
    584 struct drm_agp_mode {
    585 	unsigned long mode;	/**< AGP mode */
    586 };
    587 
    588 /**
    589  * DRM_IOCTL_AGP_ALLOC and DRM_IOCTL_AGP_FREE ioctls argument type.
    590  *
    591  * \sa drmAgpAlloc() and drmAgpFree().
    592  */
    593 struct drm_agp_buffer {
    594 	unsigned long size;	/**< In bytes -- will round to page boundary */
    595 	unsigned long handle;	/**< Used for binding / unbinding */
    596 	unsigned long type;	/**< Type of memory to allocate */
    597 	unsigned long physical;	/**< Physical used by i810 */
    598 };
    599 
    600 /**
    601  * DRM_IOCTL_AGP_BIND and DRM_IOCTL_AGP_UNBIND ioctls argument type.
    602  *
    603  * \sa drmAgpBind() and drmAgpUnbind().
    604  */
    605 struct drm_agp_binding {
    606 	unsigned long handle;	/**< From drm_agp_buffer */
    607 	unsigned long offset;	/**< In bytes -- will round to page boundary */
    608 };
    609 
    610 /**
    611  * DRM_IOCTL_AGP_INFO ioctl argument type.
    612  *
    613  * \sa drmAgpVersionMajor(), drmAgpVersionMinor(), drmAgpGetMode(),
    614  * drmAgpBase(), drmAgpSize(), drmAgpMemoryUsed(), drmAgpMemoryAvail(),
    615  * drmAgpVendorId() and drmAgpDeviceId().
    616  */
    617 struct drm_agp_info {
    618 	int agp_version_major;
    619 	int agp_version_minor;
    620 	unsigned long mode;
    621 	unsigned long aperture_base;   /**< physical address */
    622 	unsigned long aperture_size;   /**< bytes */
    623 	unsigned long memory_allowed;  /**< bytes */
    624 	unsigned long memory_used;
    625 
    626 	/** \name PCI information */
    627 	/*@{ */
    628 	unsigned short id_vendor;
    629 	unsigned short id_device;
    630 	/*@} */
    631 };
    632 
    633 /**
    634  * DRM_IOCTL_SG_ALLOC ioctl argument type.
    635  */
    636 struct drm_scatter_gather {
    637 	unsigned long size;	/**< In bytes -- will round to page boundary */
    638 	unsigned long handle;	/**< Used for mapping / unmapping */
    639 };
    640 
    641 /**
    642  * DRM_IOCTL_SET_VERSION ioctl argument type.
    643  */
    644 struct drm_set_version {
    645 	int drm_di_major;
    646 	int drm_di_minor;
    647 	int drm_dd_major;
    648 	int drm_dd_minor;
    649 };
    650 
    651 struct drm_gem_close {
    652 	/** Handle of the object to be closed. */
    653 	uint32_t handle;
    654 	uint32_t pad;
    655 };
    656 
    657 struct drm_gem_flink {
    658 	/** Handle for the object being named */
    659 	uint32_t handle;
    660 
    661 	/** Returned global name */
    662 	uint32_t name;
    663 };
    664 
    665 struct drm_gem_open {
    666 	/** Name of object being opened */
    667 	uint32_t name;
    668 
    669 	/** Returned handle for the object */
    670 	uint32_t handle;
    671 
    672 	/** Returned size of the object */
    673 	uint64_t size;
    674 };
    675 
    676 #include "drm_mode.h"
    677 
    678 /**
    679  * \name Ioctls Definitions
    680  */
    681 /*@{*/
    682 
    683 #define DRM_IOCTL_BASE			'd'
    684 #define DRM_IO(nr)			_IO(DRM_IOCTL_BASE,nr)
    685 #define DRM_IOR(nr,type)		_IOR(DRM_IOCTL_BASE,nr,type)
    686 #define DRM_IOW(nr,type)		_IOW(DRM_IOCTL_BASE,nr,type)
    687 #define DRM_IOWR(nr,type)		_IOWR(DRM_IOCTL_BASE,nr,type)
    688 
    689 #define DRM_IOCTL_VERSION		DRM_IOWR(0x00, struct drm_version)
    690 #define DRM_IOCTL_GET_UNIQUE		DRM_IOWR(0x01, struct drm_unique)
    691 #define DRM_IOCTL_GET_MAGIC		DRM_IOR( 0x02, struct drm_auth)
    692 #define DRM_IOCTL_IRQ_BUSID		DRM_IOWR(0x03, struct drm_irq_busid)
    693 #define DRM_IOCTL_GET_MAP               DRM_IOWR(0x04, struct drm_map)
    694 #define DRM_IOCTL_GET_CLIENT            DRM_IOWR(0x05, struct drm_client)
    695 #define DRM_IOCTL_GET_STATS             DRM_IOR( 0x06, struct drm_stats)
    696 #define DRM_IOCTL_SET_VERSION		DRM_IOWR(0x07, struct drm_set_version)
    697 #define DRM_IOCTL_MODESET_CTL           DRM_IOW(0x08,  struct drm_modeset_ctl)
    698 
    699 #define DRM_IOCTL_GEM_CLOSE		DRM_IOW (0x09, struct drm_gem_close)
    700 #define DRM_IOCTL_GEM_FLINK		DRM_IOWR(0x0a, struct drm_gem_flink)
    701 #define DRM_IOCTL_GEM_OPEN		DRM_IOWR(0x0b, struct drm_gem_open)
    702 
    703 #define DRM_IOCTL_SET_UNIQUE		DRM_IOW( 0x10, struct drm_unique)
    704 #define DRM_IOCTL_AUTH_MAGIC		DRM_IOW( 0x11, struct drm_auth)
    705 #define DRM_IOCTL_BLOCK			DRM_IOWR(0x12, struct drm_block)
    706 #define DRM_IOCTL_UNBLOCK		DRM_IOWR(0x13, struct drm_block)
    707 #define DRM_IOCTL_CONTROL		DRM_IOW( 0x14, struct drm_control)
    708 #define DRM_IOCTL_ADD_MAP		DRM_IOWR(0x15, struct drm_map)
    709 #define DRM_IOCTL_ADD_BUFS		DRM_IOWR(0x16, struct drm_buf_desc)
    710 #define DRM_IOCTL_MARK_BUFS		DRM_IOW( 0x17, struct drm_buf_desc)
    711 #define DRM_IOCTL_INFO_BUFS		DRM_IOWR(0x18, struct drm_buf_info)
    712 #define DRM_IOCTL_MAP_BUFS		DRM_IOWR(0x19, struct drm_buf_map)
    713 #define DRM_IOCTL_FREE_BUFS		DRM_IOW( 0x1a, struct drm_buf_free)
    714 
    715 #define DRM_IOCTL_RM_MAP		DRM_IOW( 0x1b, struct drm_map)
    716 
    717 #define DRM_IOCTL_SET_SAREA_CTX		DRM_IOW( 0x1c, struct drm_ctx_priv_map)
    718 #define DRM_IOCTL_GET_SAREA_CTX		DRM_IOWR(0x1d, struct drm_ctx_priv_map)
    719 
    720 #define DRM_IOCTL_SET_MASTER            DRM_IO(0x1e)
    721 #define DRM_IOCTL_DROP_MASTER           DRM_IO(0x1f)
    722 
    723 #define DRM_IOCTL_ADD_CTX		DRM_IOWR(0x20, struct drm_ctx)
    724 #define DRM_IOCTL_RM_CTX		DRM_IOWR(0x21, struct drm_ctx)
    725 #define DRM_IOCTL_MOD_CTX		DRM_IOW( 0x22, struct drm_ctx)
    726 #define DRM_IOCTL_GET_CTX		DRM_IOWR(0x23, struct drm_ctx)
    727 #define DRM_IOCTL_SWITCH_CTX		DRM_IOW( 0x24, struct drm_ctx)
    728 #define DRM_IOCTL_NEW_CTX		DRM_IOW( 0x25, struct drm_ctx)
    729 #define DRM_IOCTL_RES_CTX		DRM_IOWR(0x26, struct drm_ctx_res)
    730 #define DRM_IOCTL_ADD_DRAW		DRM_IOWR(0x27, struct drm_draw)
    731 #define DRM_IOCTL_RM_DRAW		DRM_IOWR(0x28, struct drm_draw)
    732 #define DRM_IOCTL_DMA			DRM_IOWR(0x29, struct drm_dma)
    733 #define DRM_IOCTL_LOCK			DRM_IOW( 0x2a, struct drm_lock)
    734 #define DRM_IOCTL_UNLOCK		DRM_IOW( 0x2b, struct drm_lock)
    735 #define DRM_IOCTL_FINISH		DRM_IOW( 0x2c, struct drm_lock)
    736 
    737 #define DRM_IOCTL_AGP_ACQUIRE		DRM_IO(  0x30)
    738 #define DRM_IOCTL_AGP_RELEASE		DRM_IO(  0x31)
    739 #define DRM_IOCTL_AGP_ENABLE		DRM_IOW( 0x32, struct drm_agp_mode)
    740 #define DRM_IOCTL_AGP_INFO		DRM_IOR( 0x33, struct drm_agp_info)
    741 #define DRM_IOCTL_AGP_ALLOC		DRM_IOWR(0x34, struct drm_agp_buffer)
    742 #define DRM_IOCTL_AGP_FREE		DRM_IOW( 0x35, struct drm_agp_buffer)
    743 #define DRM_IOCTL_AGP_BIND		DRM_IOW( 0x36, struct drm_agp_binding)
    744 #define DRM_IOCTL_AGP_UNBIND		DRM_IOW( 0x37, struct drm_agp_binding)
    745 
    746 #define DRM_IOCTL_SG_ALLOC		DRM_IOWR(0x38, struct drm_scatter_gather)
    747 #define DRM_IOCTL_SG_FREE		DRM_IOW( 0x39, struct drm_scatter_gather)
    748 
    749 #define DRM_IOCTL_WAIT_VBLANK		DRM_IOWR(0x3a, union drm_wait_vblank)
    750 
    751 #define DRM_IOCTL_UPDATE_DRAW           DRM_IOW(0x3f, struct drm_update_draw)
    752 
    753 #define DRM_IOCTL_MM_INIT               DRM_IOWR(0xc0, struct drm_mm_init_arg)
    754 #define DRM_IOCTL_MM_TAKEDOWN           DRM_IOWR(0xc1, struct drm_mm_type_arg)
    755 #define DRM_IOCTL_MM_LOCK               DRM_IOWR(0xc2, struct drm_mm_type_arg)
    756 #define DRM_IOCTL_MM_UNLOCK             DRM_IOWR(0xc3, struct drm_mm_type_arg)
    757 
    758 #define DRM_IOCTL_FENCE_CREATE          DRM_IOWR(0xc4, struct drm_fence_arg)
    759 #define DRM_IOCTL_FENCE_REFERENCE       DRM_IOWR(0xc6, struct drm_fence_arg)
    760 #define DRM_IOCTL_FENCE_UNREFERENCE     DRM_IOWR(0xc7, struct drm_fence_arg)
    761 #define DRM_IOCTL_FENCE_SIGNALED        DRM_IOWR(0xc8, struct drm_fence_arg)
    762 #define DRM_IOCTL_FENCE_FLUSH           DRM_IOWR(0xc9, struct drm_fence_arg)
    763 #define DRM_IOCTL_FENCE_WAIT            DRM_IOWR(0xca, struct drm_fence_arg)
    764 #define DRM_IOCTL_FENCE_EMIT            DRM_IOWR(0xcb, struct drm_fence_arg)
    765 #define DRM_IOCTL_FENCE_BUFFERS         DRM_IOWR(0xcc, struct drm_fence_arg)
    766 
    767 #define DRM_IOCTL_BO_CREATE             DRM_IOWR(0xcd, struct drm_bo_create_arg)
    768 #define DRM_IOCTL_BO_MAP                DRM_IOWR(0xcf, struct drm_bo_map_wait_idle_arg)
    769 #define DRM_IOCTL_BO_UNMAP              DRM_IOWR(0xd0, struct drm_bo_handle_arg)
    770 #define DRM_IOCTL_BO_REFERENCE          DRM_IOWR(0xd1, struct drm_bo_reference_info_arg)
    771 #define DRM_IOCTL_BO_UNREFERENCE        DRM_IOWR(0xd2, struct drm_bo_handle_arg)
    772 #define DRM_IOCTL_BO_SETSTATUS          DRM_IOWR(0xd3, struct drm_bo_map_wait_idle_arg)
    773 #define DRM_IOCTL_BO_INFO               DRM_IOWR(0xd4, struct drm_bo_reference_info_arg)
    774 #define DRM_IOCTL_BO_WAIT_IDLE          DRM_IOWR(0xd5, struct drm_bo_map_wait_idle_arg)
    775 #define DRM_IOCTL_BO_VERSION          DRM_IOR(0xd6, struct drm_bo_version_arg)
    776 #define DRM_IOCTL_MM_INFO               DRM_IOWR(0xd7, struct drm_mm_info_arg)
    777 
    778 #define DRM_IOCTL_MODE_GETRESOURCES     DRM_IOWR(0xA0, struct drm_mode_card_res)
    779 
    780 #define DRM_IOCTL_MODE_GETCRTC          DRM_IOWR(0xA1, struct drm_mode_crtc)
    781 #define DRM_IOCTL_MODE_SETCRTC		DRM_IOWR(0xA2, struct drm_mode_crtc)
    782 #define DRM_IOCTL_MODE_CURSOR		DRM_IOWR(0xA3, struct drm_mode_cursor)
    783 #define DRM_IOCTL_MODE_GETGAMMA		DRM_IOWR(0xA4, struct drm_mode_crtc_lut)
    784 #define DRM_IOCTL_MODE_SETGAMMA		DRM_IOWR(0xA5, struct drm_mode_crtc_lut)
    785 
    786 #define DRM_IOCTL_MODE_GETENCODER	DRM_IOWR(0xA6, struct drm_mode_get_encoder)
    787 
    788 #define DRM_IOCTL_MODE_GETCONNECTOR	DRM_IOWR(0xA7, struct drm_mode_get_connector)
    789 #define DRM_IOCTL_MODE_ATTACHMODE	DRM_IOWR(0xA8, struct drm_mode_mode_cmd)
    790 #define DRM_IOCTL_MODE_DETACHMODE	DRM_IOWR(0xA9, struct drm_mode_mode_cmd)
    791 #define DRM_IOCTL_MODE_GETPROPERTY	DRM_IOWR(0xAA, struct drm_mode_get_property)
    792 #define DRM_IOCTL_MODE_SETPROPERTY	DRM_IOWR(0xAB, struct drm_mode_connector_set_property)
    793 #define DRM_IOCTL_MODE_GETPROPBLOB	DRM_IOWR(0xAC, struct drm_mode_get_blob)
    794 
    795 #define DRM_IOCTL_MODE_GETFB		DRM_IOWR(0xAD, struct drm_mode_fb_cmd)
    796 #define DRM_IOCTL_MODE_ADDFB		DRM_IOWR(0xAE, struct drm_mode_fb_cmd)
    797 #define DRM_IOCTL_MODE_RMFB		DRM_IOWR(0xAF, uint32_t)
    798 
    799 /*@}*/
    800 
    801 /**
    802  * Device specific ioctls should only be in their respective headers
    803  * The device specific ioctl range is from 0x40 to 0x99.
    804  * Generic IOCTLS restart at 0xA0.
    805  *
    806  * \sa drmCommandNone(), drmCommandRead(), drmCommandWrite(), and
    807  * drmCommandReadWrite().
    808  */
    809 #define DRM_COMMAND_BASE                0x40
    810 #define DRM_COMMAND_END                 0xA0
    811 
    812 /* typedef area */
    813 #ifndef __KERNEL__
    814 typedef struct drm_clip_rect drm_clip_rect_t;
    815 typedef struct drm_tex_region drm_tex_region_t;
    816 typedef struct drm_hw_lock drm_hw_lock_t;
    817 typedef struct drm_version drm_version_t;
    818 typedef struct drm_unique drm_unique_t;
    819 typedef struct drm_list drm_list_t;
    820 typedef struct drm_block drm_block_t;
    821 typedef struct drm_control drm_control_t;
    822 typedef enum drm_map_type drm_map_type_t;
    823 typedef enum drm_map_flags drm_map_flags_t;
    824 typedef struct drm_ctx_priv_map drm_ctx_priv_map_t;
    825 typedef struct drm_map drm_map_t;
    826 typedef struct drm_client drm_client_t;
    827 typedef enum drm_stat_type drm_stat_type_t;
    828 typedef struct drm_stats drm_stats_t;
    829 typedef enum drm_lock_flags drm_lock_flags_t;
    830 typedef struct drm_lock drm_lock_t;
    831 typedef enum drm_dma_flags drm_dma_flags_t;
    832 typedef struct drm_buf_desc drm_buf_desc_t;
    833 typedef struct drm_buf_info drm_buf_info_t;
    834 typedef struct drm_buf_free drm_buf_free_t;
    835 typedef struct drm_buf_pub drm_buf_pub_t;
    836 typedef struct drm_buf_map drm_buf_map_t;
    837 typedef struct drm_dma drm_dma_t;
    838 typedef union drm_wait_vblank drm_wait_vblank_t;
    839 typedef struct drm_agp_mode drm_agp_mode_t;
    840 typedef enum drm_ctx_flags drm_ctx_flags_t;
    841 typedef struct drm_ctx drm_ctx_t;
    842 typedef struct drm_ctx_res drm_ctx_res_t;
    843 typedef struct drm_draw drm_draw_t;
    844 typedef struct drm_update_draw drm_update_draw_t;
    845 typedef struct drm_auth drm_auth_t;
    846 typedef struct drm_irq_busid drm_irq_busid_t;
    847 typedef enum drm_vblank_seq_type drm_vblank_seq_type_t;
    848 typedef struct drm_agp_buffer drm_agp_buffer_t;
    849 typedef struct drm_agp_binding drm_agp_binding_t;
    850 typedef struct drm_agp_info drm_agp_info_t;
    851 typedef struct drm_scatter_gather drm_scatter_gather_t;
    852 typedef struct drm_set_version drm_set_version_t;
    853 
    854 typedef struct drm_fence_arg drm_fence_arg_t;
    855 typedef struct drm_mm_type_arg drm_mm_type_arg_t;
    856 typedef struct drm_mm_init_arg drm_mm_init_arg_t;
    857 #endif
    858 
    859 #endif
    860