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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 #ifndef _DRM_H_
     37 #define _DRM_H_
     38 
     39 #if   defined(__linux__)
     40 
     41 #include <linux/types.h>
     42 #include <asm/ioctl.h>
     43 typedef unsigned int drm_handle_t;
     44 
     45 #else /* One of the BSDs */
     46 
     47 #include <sys/ioccom.h>
     48 #include <sys/types.h>
     49 typedef int8_t   __s8;
     50 typedef uint8_t  __u8;
     51 typedef int16_t  __s16;
     52 typedef uint16_t __u16;
     53 typedef int32_t  __s32;
     54 typedef uint32_t __u32;
     55 typedef int64_t  __s64;
     56 typedef uint64_t __u64;
     57 typedef size_t   __kernel_size_t;
     58 typedef unsigned long drm_handle_t;
     59 
     60 #endif
     61 
     62 #if defined(__cplusplus)
     63 extern "C" {
     64 #endif
     65 
     66 #define DRM_NAME	"drm"	  /**< Name in kernel, /dev, and /proc */
     67 #define DRM_MIN_ORDER	5	  /**< At least 2^5 bytes = 32 bytes */
     68 #define DRM_MAX_ORDER	22	  /**< Up to 2^22 bytes = 4MB */
     69 #define DRM_RAM_PERCENT 10	  /**< How much system ram can we lock? */
     70 
     71 #define _DRM_LOCK_HELD	0x80000000U /**< Hardware lock is held */
     72 #define _DRM_LOCK_CONT	0x40000000U /**< Hardware lock is contended */
     73 #define _DRM_LOCK_IS_HELD(lock)	   ((lock) & _DRM_LOCK_HELD)
     74 #define _DRM_LOCK_IS_CONT(lock)	   ((lock) & _DRM_LOCK_CONT)
     75 #define _DRM_LOCKING_CONTEXT(lock) ((lock) & ~(_DRM_LOCK_HELD|_DRM_LOCK_CONT))
     76 
     77 typedef unsigned int drm_context_t;
     78 typedef unsigned int drm_drawable_t;
     79 typedef unsigned int drm_magic_t;
     80 
     81 /**
     82  * Cliprect.
     83  *
     84  * \warning: If you change this structure, make sure you change
     85  * XF86DRIClipRectRec in the server as well
     86  *
     87  * \note KW: Actually it's illegal to change either for
     88  * backwards-compatibility reasons.
     89  */
     90 struct drm_clip_rect {
     91 	unsigned short x1;
     92 	unsigned short y1;
     93 	unsigned short x2;
     94 	unsigned short y2;
     95 };
     96 
     97 /**
     98  * Drawable information.
     99  */
    100 struct drm_drawable_info {
    101 	unsigned int num_rects;
    102 	struct drm_clip_rect *rects;
    103 };
    104 
    105 /**
    106  * Texture region,
    107  */
    108 struct drm_tex_region {
    109 	unsigned char next;
    110 	unsigned char prev;
    111 	unsigned char in_use;
    112 	unsigned char padding;
    113 	unsigned int age;
    114 };
    115 
    116 /**
    117  * Hardware lock.
    118  *
    119  * The lock structure is a simple cache-line aligned integer.  To avoid
    120  * processor bus contention on a multiprocessor system, there should not be any
    121  * other data stored in the same cache line.
    122  */
    123 struct drm_hw_lock {
    124 	__volatile__ unsigned int lock;		/**< lock variable */
    125 	char padding[60];			/**< Pad to cache line */
    126 };
    127 
    128 /**
    129  * DRM_IOCTL_VERSION ioctl argument type.
    130  *
    131  * \sa drmGetVersion().
    132  */
    133 struct drm_version {
    134 	int version_major;	  /**< Major version */
    135 	int version_minor;	  /**< Minor version */
    136 	int version_patchlevel;	  /**< Patch level */
    137 	__kernel_size_t name_len;	  /**< Length of name buffer */
    138 	char *name;	  /**< Name of driver */
    139 	__kernel_size_t date_len;	  /**< Length of date buffer */
    140 	char *date;	  /**< User-space buffer to hold date */
    141 	__kernel_size_t desc_len;	  /**< Length of desc buffer */
    142 	char *desc;	  /**< User-space buffer to hold desc */
    143 };
    144 
    145 /**
    146  * DRM_IOCTL_GET_UNIQUE ioctl argument type.
    147  *
    148  * \sa drmGetBusid() and drmSetBusId().
    149  */
    150 struct drm_unique {
    151 	__kernel_size_t unique_len;	  /**< Length of unique */
    152 	char *unique;	  /**< Unique name for driver instantiation */
    153 };
    154 
    155 struct drm_list {
    156 	int count;		  /**< Length of user-space structures */
    157 	struct drm_version *version;
    158 };
    159 
    160 struct drm_block {
    161 	int unused;
    162 };
    163 
    164 /**
    165  * DRM_IOCTL_CONTROL ioctl argument type.
    166  *
    167  * \sa drmCtlInstHandler() and drmCtlUninstHandler().
    168  */
    169 struct drm_control {
    170 	enum {
    171 		DRM_ADD_COMMAND,
    172 		DRM_RM_COMMAND,
    173 		DRM_INST_HANDLER,
    174 		DRM_UNINST_HANDLER
    175 	} func;
    176 	int irq;
    177 };
    178 
    179 /**
    180  * Type of memory to map.
    181  */
    182 enum drm_map_type {
    183 	_DRM_FRAME_BUFFER = 0,	  /**< WC (no caching), no core dump */
    184 	_DRM_REGISTERS = 1,	  /**< no caching, no core dump */
    185 	_DRM_SHM = 2,		  /**< shared, cached */
    186 	_DRM_AGP = 3,		  /**< AGP/GART */
    187 	_DRM_SCATTER_GATHER = 4,  /**< Scatter/gather memory for PCI DMA */
    188 	_DRM_CONSISTENT = 5	  /**< Consistent memory for PCI DMA */
    189 };
    190 
    191 /**
    192  * Memory mapping flags.
    193  */
    194 enum drm_map_flags {
    195 	_DRM_RESTRICTED = 0x01,	     /**< Cannot be mapped to user-virtual */
    196 	_DRM_READ_ONLY = 0x02,
    197 	_DRM_LOCKED = 0x04,	     /**< shared, cached, locked */
    198 	_DRM_KERNEL = 0x08,	     /**< kernel requires access */
    199 	_DRM_WRITE_COMBINING = 0x10, /**< use write-combining if available */
    200 	_DRM_CONTAINS_LOCK = 0x20,   /**< SHM page that contains lock */
    201 	_DRM_REMOVABLE = 0x40,	     /**< Removable mapping */
    202 	_DRM_DRIVER = 0x80	     /**< Managed by driver */
    203 };
    204 
    205 struct drm_ctx_priv_map {
    206 	unsigned int ctx_id;	 /**< Context requesting private mapping */
    207 	void *handle;		 /**< Handle of map */
    208 };
    209 
    210 /**
    211  * DRM_IOCTL_GET_MAP, DRM_IOCTL_ADD_MAP and DRM_IOCTL_RM_MAP ioctls
    212  * argument type.
    213  *
    214  * \sa drmAddMap().
    215  */
    216 struct drm_map {
    217 	unsigned long offset;	 /**< Requested physical address (0 for SAREA)*/
    218 	unsigned long size;	 /**< Requested physical size (bytes) */
    219 	enum drm_map_type type;	 /**< Type of memory to map */
    220 	enum drm_map_flags flags;	 /**< Flags */
    221 	void *handle;		 /**< User-space: "Handle" to pass to mmap() */
    222 				 /**< Kernel-space: kernel-virtual address */
    223 	int mtrr;		 /**< MTRR slot used */
    224 	/*   Private data */
    225 };
    226 
    227 /**
    228  * DRM_IOCTL_GET_CLIENT ioctl argument type.
    229  */
    230 struct drm_client {
    231 	int idx;		/**< Which client desired? */
    232 	int auth;		/**< Is client authenticated? */
    233 	unsigned long pid;	/**< Process ID */
    234 	unsigned long uid;	/**< User ID */
    235 	unsigned long magic;	/**< Magic */
    236 	unsigned long iocs;	/**< Ioctl count */
    237 };
    238 
    239 enum drm_stat_type {
    240 	_DRM_STAT_LOCK,
    241 	_DRM_STAT_OPENS,
    242 	_DRM_STAT_CLOSES,
    243 	_DRM_STAT_IOCTLS,
    244 	_DRM_STAT_LOCKS,
    245 	_DRM_STAT_UNLOCKS,
    246 	_DRM_STAT_VALUE,	/**< Generic value */
    247 	_DRM_STAT_BYTE,		/**< Generic byte counter (1024bytes/K) */
    248 	_DRM_STAT_COUNT,	/**< Generic non-byte counter (1000/k) */
    249 
    250 	_DRM_STAT_IRQ,		/**< IRQ */
    251 	_DRM_STAT_PRIMARY,	/**< Primary DMA bytes */
    252 	_DRM_STAT_SECONDARY,	/**< Secondary DMA bytes */
    253 	_DRM_STAT_DMA,		/**< DMA */
    254 	_DRM_STAT_SPECIAL,	/**< Special DMA (e.g., priority or polled) */
    255 	_DRM_STAT_MISSED	/**< Missed DMA opportunity */
    256 	    /* Add to the *END* of the list */
    257 };
    258 
    259 /**
    260  * DRM_IOCTL_GET_STATS ioctl argument type.
    261  */
    262 struct drm_stats {
    263 	unsigned long count;
    264 	struct {
    265 		unsigned long value;
    266 		enum drm_stat_type type;
    267 	} data[15];
    268 };
    269 
    270 /**
    271  * Hardware locking flags.
    272  */
    273 enum drm_lock_flags {
    274 	_DRM_LOCK_READY = 0x01,	     /**< Wait until hardware is ready for DMA */
    275 	_DRM_LOCK_QUIESCENT = 0x02,  /**< Wait until hardware quiescent */
    276 	_DRM_LOCK_FLUSH = 0x04,	     /**< Flush this context's DMA queue first */
    277 	_DRM_LOCK_FLUSH_ALL = 0x08,  /**< Flush all DMA queues first */
    278 	/* These *HALT* flags aren't supported yet
    279 	   -- they will be used to support the
    280 	   full-screen DGA-like mode. */
    281 	_DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */
    282 	_DRM_HALT_CUR_QUEUES = 0x20  /**< Halt all current queues */
    283 };
    284 
    285 /**
    286  * DRM_IOCTL_LOCK, DRM_IOCTL_UNLOCK and DRM_IOCTL_FINISH ioctl argument type.
    287  *
    288  * \sa drmGetLock() and drmUnlock().
    289  */
    290 struct drm_lock {
    291 	int context;
    292 	enum drm_lock_flags flags;
    293 };
    294 
    295 /**
    296  * DMA flags
    297  *
    298  * \warning
    299  * These values \e must match xf86drm.h.
    300  *
    301  * \sa drm_dma.
    302  */
    303 enum drm_dma_flags {
    304 	/* Flags for DMA buffer dispatch */
    305 	_DRM_DMA_BLOCK = 0x01,	      /**<
    306 				       * Block until buffer dispatched.
    307 				       *
    308 				       * \note The buffer may not yet have
    309 				       * been processed by the hardware --
    310 				       * getting a hardware lock with the
    311 				       * hardware quiescent will ensure
    312 				       * that the buffer has been
    313 				       * processed.
    314 				       */
    315 	_DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */
    316 	_DRM_DMA_PRIORITY = 0x04,     /**< High priority dispatch */
    317 
    318 	/* Flags for DMA buffer request */
    319 	_DRM_DMA_WAIT = 0x10,	      /**< Wait for free buffers */
    320 	_DRM_DMA_SMALLER_OK = 0x20,   /**< Smaller-than-requested buffers OK */
    321 	_DRM_DMA_LARGER_OK = 0x40     /**< Larger-than-requested buffers OK */
    322 };
    323 
    324 /**
    325  * DRM_IOCTL_ADD_BUFS and DRM_IOCTL_MARK_BUFS ioctl argument type.
    326  *
    327  * \sa drmAddBufs().
    328  */
    329 struct drm_buf_desc {
    330 	int count;		 /**< Number of buffers of this size */
    331 	int size;		 /**< Size in bytes */
    332 	int low_mark;		 /**< Low water mark */
    333 	int high_mark;		 /**< High water mark */
    334 	enum {
    335 		_DRM_PAGE_ALIGN = 0x01,	/**< Align on page boundaries for DMA */
    336 		_DRM_AGP_BUFFER = 0x02,	/**< Buffer is in AGP space */
    337 		_DRM_SG_BUFFER = 0x04,	/**< Scatter/gather memory buffer */
    338 		_DRM_FB_BUFFER = 0x08,	/**< Buffer is in frame buffer */
    339 		_DRM_PCI_BUFFER_RO = 0x10 /**< Map PCI DMA buffer read-only */
    340 	} flags;
    341 	unsigned long agp_start; /**<
    342 				  * Start address of where the AGP buffers are
    343 				  * in the AGP aperture
    344 				  */
    345 };
    346 
    347 /**
    348  * DRM_IOCTL_INFO_BUFS ioctl argument type.
    349  */
    350 struct drm_buf_info {
    351 	int count;		/**< Entries in list */
    352 	struct drm_buf_desc *list;
    353 };
    354 
    355 /**
    356  * DRM_IOCTL_FREE_BUFS ioctl argument type.
    357  */
    358 struct drm_buf_free {
    359 	int count;
    360 	int *list;
    361 };
    362 
    363 /**
    364  * Buffer information
    365  *
    366  * \sa drm_buf_map.
    367  */
    368 struct drm_buf_pub {
    369 	int idx;		       /**< Index into the master buffer list */
    370 	int total;		       /**< Buffer size */
    371 	int used;		       /**< Amount of buffer in use (for DMA) */
    372 	void *address;	       /**< Address of buffer */
    373 };
    374 
    375 /**
    376  * DRM_IOCTL_MAP_BUFS ioctl argument type.
    377  */
    378 struct drm_buf_map {
    379 	int count;		/**< Length of the buffer list */
    380 #ifdef __cplusplus
    381 	void *virt;
    382 #else
    383 	void *virtual;		/**< Mmap'd area in user-virtual */
    384 #endif
    385 	struct drm_buf_pub *list;	/**< Buffer information */
    386 };
    387 
    388 /**
    389  * DRM_IOCTL_DMA ioctl argument type.
    390  *
    391  * Indices here refer to the offset into the buffer list in drm_buf_get.
    392  *
    393  * \sa drmDMA().
    394  */
    395 struct drm_dma {
    396 	int context;			  /**< Context handle */
    397 	int send_count;			  /**< Number of buffers to send */
    398 	int *send_indices;	  /**< List of handles to buffers */
    399 	int *send_sizes;		  /**< Lengths of data to send */
    400 	enum drm_dma_flags flags;	  /**< Flags */
    401 	int request_count;		  /**< Number of buffers requested */
    402 	int request_size;		  /**< Desired size for buffers */
    403 	int *request_indices;	  /**< Buffer information */
    404 	int *request_sizes;
    405 	int granted_count;		  /**< Number of buffers granted */
    406 };
    407 
    408 enum drm_ctx_flags {
    409 	_DRM_CONTEXT_PRESERVED = 0x01,
    410 	_DRM_CONTEXT_2DONLY = 0x02
    411 };
    412 
    413 /**
    414  * DRM_IOCTL_ADD_CTX ioctl argument type.
    415  *
    416  * \sa drmCreateContext() and drmDestroyContext().
    417  */
    418 struct drm_ctx {
    419 	drm_context_t handle;
    420 	enum drm_ctx_flags flags;
    421 };
    422 
    423 /**
    424  * DRM_IOCTL_RES_CTX ioctl argument type.
    425  */
    426 struct drm_ctx_res {
    427 	int count;
    428 	struct drm_ctx *contexts;
    429 };
    430 
    431 /**
    432  * DRM_IOCTL_ADD_DRAW and DRM_IOCTL_RM_DRAW ioctl argument type.
    433  */
    434 struct drm_draw {
    435 	drm_drawable_t handle;
    436 };
    437 
    438 /**
    439  * DRM_IOCTL_UPDATE_DRAW ioctl argument type.
    440  */
    441 typedef enum {
    442 	DRM_DRAWABLE_CLIPRECTS
    443 } drm_drawable_info_type_t;
    444 
    445 struct drm_update_draw {
    446 	drm_drawable_t handle;
    447 	unsigned int type;
    448 	unsigned int num;
    449 	unsigned long long data;
    450 };
    451 
    452 /**
    453  * DRM_IOCTL_GET_MAGIC and DRM_IOCTL_AUTH_MAGIC ioctl argument type.
    454  */
    455 struct drm_auth {
    456 	drm_magic_t magic;
    457 };
    458 
    459 /**
    460  * DRM_IOCTL_IRQ_BUSID ioctl argument type.
    461  *
    462  * \sa drmGetInterruptFromBusID().
    463  */
    464 struct drm_irq_busid {
    465 	int irq;	/**< IRQ number */
    466 	int busnum;	/**< bus number */
    467 	int devnum;	/**< device number */
    468 	int funcnum;	/**< function number */
    469 };
    470 
    471 enum drm_vblank_seq_type {
    472 	_DRM_VBLANK_ABSOLUTE = 0x0,	/**< Wait for specific vblank sequence number */
    473 	_DRM_VBLANK_RELATIVE = 0x1,	/**< Wait for given number of vblanks */
    474 	/* bits 1-6 are reserved for high crtcs */
    475 	_DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e,
    476 	_DRM_VBLANK_EVENT = 0x4000000,   /**< Send event instead of blocking */
    477 	_DRM_VBLANK_FLIP = 0x8000000,   /**< Scheduled buffer swap should flip */
    478 	_DRM_VBLANK_NEXTONMISS = 0x10000000,	/**< If missed, wait for next vblank */
    479 	_DRM_VBLANK_SECONDARY = 0x20000000,	/**< Secondary display controller */
    480 	_DRM_VBLANK_SIGNAL = 0x40000000	/**< Send signal instead of blocking, unsupported */
    481 };
    482 #define _DRM_VBLANK_HIGH_CRTC_SHIFT 1
    483 
    484 #define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE)
    485 #define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_EVENT | _DRM_VBLANK_SIGNAL | \
    486 				_DRM_VBLANK_SECONDARY | _DRM_VBLANK_NEXTONMISS)
    487 
    488 struct drm_wait_vblank_request {
    489 	enum drm_vblank_seq_type type;
    490 	unsigned int sequence;
    491 	unsigned long signal;
    492 };
    493 
    494 struct drm_wait_vblank_reply {
    495 	enum drm_vblank_seq_type type;
    496 	unsigned int sequence;
    497 	long tval_sec;
    498 	long tval_usec;
    499 };
    500 
    501 /**
    502  * DRM_IOCTL_WAIT_VBLANK ioctl argument type.
    503  *
    504  * \sa drmWaitVBlank().
    505  */
    506 union drm_wait_vblank {
    507 	struct drm_wait_vblank_request request;
    508 	struct drm_wait_vblank_reply reply;
    509 };
    510 
    511 #define _DRM_PRE_MODESET 1
    512 #define _DRM_POST_MODESET 2
    513 
    514 /**
    515  * DRM_IOCTL_MODESET_CTL ioctl argument type
    516  *
    517  * \sa drmModesetCtl().
    518  */
    519 struct drm_modeset_ctl {
    520 	__u32 crtc;
    521 	__u32 cmd;
    522 };
    523 
    524 /**
    525  * DRM_IOCTL_AGP_ENABLE ioctl argument type.
    526  *
    527  * \sa drmAgpEnable().
    528  */
    529 struct drm_agp_mode {
    530 	unsigned long mode;	/**< AGP mode */
    531 };
    532 
    533 /**
    534  * DRM_IOCTL_AGP_ALLOC and DRM_IOCTL_AGP_FREE ioctls argument type.
    535  *
    536  * \sa drmAgpAlloc() and drmAgpFree().
    537  */
    538 struct drm_agp_buffer {
    539 	unsigned long size;	/**< In bytes -- will round to page boundary */
    540 	unsigned long handle;	/**< Used for binding / unbinding */
    541 	unsigned long type;	/**< Type of memory to allocate */
    542 	unsigned long physical;	/**< Physical used by i810 */
    543 };
    544 
    545 /**
    546  * DRM_IOCTL_AGP_BIND and DRM_IOCTL_AGP_UNBIND ioctls argument type.
    547  *
    548  * \sa drmAgpBind() and drmAgpUnbind().
    549  */
    550 struct drm_agp_binding {
    551 	unsigned long handle;	/**< From drm_agp_buffer */
    552 	unsigned long offset;	/**< In bytes -- will round to page boundary */
    553 };
    554 
    555 /**
    556  * DRM_IOCTL_AGP_INFO ioctl argument type.
    557  *
    558  * \sa drmAgpVersionMajor(), drmAgpVersionMinor(), drmAgpGetMode(),
    559  * drmAgpBase(), drmAgpSize(), drmAgpMemoryUsed(), drmAgpMemoryAvail(),
    560  * drmAgpVendorId() and drmAgpDeviceId().
    561  */
    562 struct drm_agp_info {
    563 	int agp_version_major;
    564 	int agp_version_minor;
    565 	unsigned long mode;
    566 	unsigned long aperture_base;	/* physical address */
    567 	unsigned long aperture_size;	/* bytes */
    568 	unsigned long memory_allowed;	/* bytes */
    569 	unsigned long memory_used;
    570 
    571 	/* PCI information */
    572 	unsigned short id_vendor;
    573 	unsigned short id_device;
    574 };
    575 
    576 /**
    577  * DRM_IOCTL_SG_ALLOC ioctl argument type.
    578  */
    579 struct drm_scatter_gather {
    580 	unsigned long size;	/**< In bytes -- will round to page boundary */
    581 	unsigned long handle;	/**< Used for mapping / unmapping */
    582 };
    583 
    584 /**
    585  * DRM_IOCTL_SET_VERSION ioctl argument type.
    586  */
    587 struct drm_set_version {
    588 	int drm_di_major;
    589 	int drm_di_minor;
    590 	int drm_dd_major;
    591 	int drm_dd_minor;
    592 };
    593 
    594 /** DRM_IOCTL_GEM_CLOSE ioctl argument type */
    595 struct drm_gem_close {
    596 	/** Handle of the object to be closed. */
    597 	__u32 handle;
    598 	__u32 pad;
    599 };
    600 
    601 /** DRM_IOCTL_GEM_FLINK ioctl argument type */
    602 struct drm_gem_flink {
    603 	/** Handle for the object being named */
    604 	__u32 handle;
    605 
    606 	/** Returned global name */
    607 	__u32 name;
    608 };
    609 
    610 /** DRM_IOCTL_GEM_OPEN ioctl argument type */
    611 struct drm_gem_open {
    612 	/** Name of object being opened */
    613 	__u32 name;
    614 
    615 	/** Returned handle for the object */
    616 	__u32 handle;
    617 
    618 	/** Returned size of the object */
    619 	__u64 size;
    620 };
    621 
    622 #define DRM_CAP_DUMB_BUFFER		0x1
    623 #define DRM_CAP_VBLANK_HIGH_CRTC	0x2
    624 #define DRM_CAP_DUMB_PREFERRED_DEPTH	0x3
    625 #define DRM_CAP_DUMB_PREFER_SHADOW	0x4
    626 #define DRM_CAP_PRIME			0x5
    627 #define  DRM_PRIME_CAP_IMPORT		0x1
    628 #define  DRM_PRIME_CAP_EXPORT		0x2
    629 #define DRM_CAP_TIMESTAMP_MONOTONIC	0x6
    630 #define DRM_CAP_ASYNC_PAGE_FLIP		0x7
    631 /*
    632  * The CURSOR_WIDTH and CURSOR_HEIGHT capabilities return a valid widthxheight
    633  * combination for the hardware cursor. The intention is that a hardware
    634  * agnostic userspace can query a cursor plane size to use.
    635  *
    636  * Note that the cross-driver contract is to merely return a valid size;
    637  * drivers are free to attach another meaning on top, eg. i915 returns the
    638  * maximum plane size.
    639  */
    640 #define DRM_CAP_CURSOR_WIDTH		0x8
    641 #define DRM_CAP_CURSOR_HEIGHT		0x9
    642 #define DRM_CAP_ADDFB2_MODIFIERS	0x10
    643 #define DRM_CAP_PAGE_FLIP_TARGET	0x11
    644 
    645 /** DRM_IOCTL_GET_CAP ioctl argument type */
    646 struct drm_get_cap {
    647 	__u64 capability;
    648 	__u64 value;
    649 };
    650 
    651 /**
    652  * DRM_CLIENT_CAP_STEREO_3D
    653  *
    654  * if set to 1, the DRM core will expose the stereo 3D capabilities of the
    655  * monitor by advertising the supported 3D layouts in the flags of struct
    656  * drm_mode_modeinfo.
    657  */
    658 #define DRM_CLIENT_CAP_STEREO_3D	1
    659 
    660 /**
    661  * DRM_CLIENT_CAP_UNIVERSAL_PLANES
    662  *
    663  * If set to 1, the DRM core will expose all planes (overlay, primary, and
    664  * cursor) to userspace.
    665  */
    666 #define DRM_CLIENT_CAP_UNIVERSAL_PLANES  2
    667 
    668 /**
    669  * DRM_CLIENT_CAP_ATOMIC
    670  *
    671  * If set to 1, the DRM core will expose atomic properties to userspace
    672  */
    673 #define DRM_CLIENT_CAP_ATOMIC	3
    674 
    675 /** DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */
    676 struct drm_set_client_cap {
    677 	__u64 capability;
    678 	__u64 value;
    679 };
    680 
    681 #define DRM_RDWR O_RDWR
    682 #define DRM_CLOEXEC O_CLOEXEC
    683 struct drm_prime_handle {
    684 	__u32 handle;
    685 
    686 	/** Flags.. only applicable for handle->fd */
    687 	__u32 flags;
    688 
    689 	/** Returned dmabuf file descriptor */
    690 	__s32 fd;
    691 };
    692 
    693 #if defined(__cplusplus)
    694 }
    695 #endif
    696 
    697 #include "drm_mode.h"
    698 
    699 #if defined(__cplusplus)
    700 extern "C" {
    701 #endif
    702 
    703 #define DRM_IOCTL_BASE			'd'
    704 #define DRM_IO(nr)			_IO(DRM_IOCTL_BASE,nr)
    705 #define DRM_IOR(nr,type)		_IOR(DRM_IOCTL_BASE,nr,type)
    706 #define DRM_IOW(nr,type)		_IOW(DRM_IOCTL_BASE,nr,type)
    707 #define DRM_IOWR(nr,type)		_IOWR(DRM_IOCTL_BASE,nr,type)
    708 
    709 #define DRM_IOCTL_VERSION		DRM_IOWR(0x00, struct drm_version)
    710 #define DRM_IOCTL_GET_UNIQUE		DRM_IOWR(0x01, struct drm_unique)
    711 #define DRM_IOCTL_GET_MAGIC		DRM_IOR( 0x02, struct drm_auth)
    712 #define DRM_IOCTL_IRQ_BUSID		DRM_IOWR(0x03, struct drm_irq_busid)
    713 #define DRM_IOCTL_GET_MAP               DRM_IOWR(0x04, struct drm_map)
    714 #define DRM_IOCTL_GET_CLIENT            DRM_IOWR(0x05, struct drm_client)
    715 #define DRM_IOCTL_GET_STATS             DRM_IOR( 0x06, struct drm_stats)
    716 #define DRM_IOCTL_SET_VERSION		DRM_IOWR(0x07, struct drm_set_version)
    717 #define DRM_IOCTL_MODESET_CTL           DRM_IOW(0x08, struct drm_modeset_ctl)
    718 #define DRM_IOCTL_GEM_CLOSE		DRM_IOW (0x09, struct drm_gem_close)
    719 #define DRM_IOCTL_GEM_FLINK		DRM_IOWR(0x0a, struct drm_gem_flink)
    720 #define DRM_IOCTL_GEM_OPEN		DRM_IOWR(0x0b, struct drm_gem_open)
    721 #define DRM_IOCTL_GET_CAP		DRM_IOWR(0x0c, struct drm_get_cap)
    722 #define DRM_IOCTL_SET_CLIENT_CAP	DRM_IOW( 0x0d, struct drm_set_client_cap)
    723 
    724 #define DRM_IOCTL_SET_UNIQUE		DRM_IOW( 0x10, struct drm_unique)
    725 #define DRM_IOCTL_AUTH_MAGIC		DRM_IOW( 0x11, struct drm_auth)
    726 #define DRM_IOCTL_BLOCK			DRM_IOWR(0x12, struct drm_block)
    727 #define DRM_IOCTL_UNBLOCK		DRM_IOWR(0x13, struct drm_block)
    728 #define DRM_IOCTL_CONTROL		DRM_IOW( 0x14, struct drm_control)
    729 #define DRM_IOCTL_ADD_MAP		DRM_IOWR(0x15, struct drm_map)
    730 #define DRM_IOCTL_ADD_BUFS		DRM_IOWR(0x16, struct drm_buf_desc)
    731 #define DRM_IOCTL_MARK_BUFS		DRM_IOW( 0x17, struct drm_buf_desc)
    732 #define DRM_IOCTL_INFO_BUFS		DRM_IOWR(0x18, struct drm_buf_info)
    733 #define DRM_IOCTL_MAP_BUFS		DRM_IOWR(0x19, struct drm_buf_map)
    734 #define DRM_IOCTL_FREE_BUFS		DRM_IOW( 0x1a, struct drm_buf_free)
    735 
    736 #define DRM_IOCTL_RM_MAP		DRM_IOW( 0x1b, struct drm_map)
    737 
    738 #define DRM_IOCTL_SET_SAREA_CTX		DRM_IOW( 0x1c, struct drm_ctx_priv_map)
    739 #define DRM_IOCTL_GET_SAREA_CTX 	DRM_IOWR(0x1d, struct drm_ctx_priv_map)
    740 
    741 #define DRM_IOCTL_SET_MASTER            DRM_IO(0x1e)
    742 #define DRM_IOCTL_DROP_MASTER           DRM_IO(0x1f)
    743 
    744 #define DRM_IOCTL_ADD_CTX		DRM_IOWR(0x20, struct drm_ctx)
    745 #define DRM_IOCTL_RM_CTX		DRM_IOWR(0x21, struct drm_ctx)
    746 #define DRM_IOCTL_MOD_CTX		DRM_IOW( 0x22, struct drm_ctx)
    747 #define DRM_IOCTL_GET_CTX		DRM_IOWR(0x23, struct drm_ctx)
    748 #define DRM_IOCTL_SWITCH_CTX		DRM_IOW( 0x24, struct drm_ctx)
    749 #define DRM_IOCTL_NEW_CTX		DRM_IOW( 0x25, struct drm_ctx)
    750 #define DRM_IOCTL_RES_CTX		DRM_IOWR(0x26, struct drm_ctx_res)
    751 #define DRM_IOCTL_ADD_DRAW		DRM_IOWR(0x27, struct drm_draw)
    752 #define DRM_IOCTL_RM_DRAW		DRM_IOWR(0x28, struct drm_draw)
    753 #define DRM_IOCTL_DMA			DRM_IOWR(0x29, struct drm_dma)
    754 #define DRM_IOCTL_LOCK			DRM_IOW( 0x2a, struct drm_lock)
    755 #define DRM_IOCTL_UNLOCK		DRM_IOW( 0x2b, struct drm_lock)
    756 #define DRM_IOCTL_FINISH		DRM_IOW( 0x2c, struct drm_lock)
    757 
    758 #define DRM_IOCTL_PRIME_HANDLE_TO_FD    DRM_IOWR(0x2d, struct drm_prime_handle)
    759 #define DRM_IOCTL_PRIME_FD_TO_HANDLE    DRM_IOWR(0x2e, struct drm_prime_handle)
    760 
    761 #define DRM_IOCTL_AGP_ACQUIRE		DRM_IO(  0x30)
    762 #define DRM_IOCTL_AGP_RELEASE		DRM_IO(  0x31)
    763 #define DRM_IOCTL_AGP_ENABLE		DRM_IOW( 0x32, struct drm_agp_mode)
    764 #define DRM_IOCTL_AGP_INFO		DRM_IOR( 0x33, struct drm_agp_info)
    765 #define DRM_IOCTL_AGP_ALLOC		DRM_IOWR(0x34, struct drm_agp_buffer)
    766 #define DRM_IOCTL_AGP_FREE		DRM_IOW( 0x35, struct drm_agp_buffer)
    767 #define DRM_IOCTL_AGP_BIND		DRM_IOW( 0x36, struct drm_agp_binding)
    768 #define DRM_IOCTL_AGP_UNBIND		DRM_IOW( 0x37, struct drm_agp_binding)
    769 
    770 #define DRM_IOCTL_SG_ALLOC		DRM_IOWR(0x38, struct drm_scatter_gather)
    771 #define DRM_IOCTL_SG_FREE		DRM_IOW( 0x39, struct drm_scatter_gather)
    772 
    773 #define DRM_IOCTL_WAIT_VBLANK		DRM_IOWR(0x3a, union drm_wait_vblank)
    774 
    775 #define DRM_IOCTL_UPDATE_DRAW		DRM_IOW(0x3f, struct drm_update_draw)
    776 
    777 #define DRM_IOCTL_MODE_GETRESOURCES	DRM_IOWR(0xA0, struct drm_mode_card_res)
    778 #define DRM_IOCTL_MODE_GETCRTC		DRM_IOWR(0xA1, struct drm_mode_crtc)
    779 #define DRM_IOCTL_MODE_SETCRTC		DRM_IOWR(0xA2, struct drm_mode_crtc)
    780 #define DRM_IOCTL_MODE_CURSOR		DRM_IOWR(0xA3, struct drm_mode_cursor)
    781 #define DRM_IOCTL_MODE_GETGAMMA		DRM_IOWR(0xA4, struct drm_mode_crtc_lut)
    782 #define DRM_IOCTL_MODE_SETGAMMA		DRM_IOWR(0xA5, struct drm_mode_crtc_lut)
    783 #define DRM_IOCTL_MODE_GETENCODER	DRM_IOWR(0xA6, struct drm_mode_get_encoder)
    784 #define DRM_IOCTL_MODE_GETCONNECTOR	DRM_IOWR(0xA7, struct drm_mode_get_connector)
    785 #define DRM_IOCTL_MODE_ATTACHMODE	DRM_IOWR(0xA8, struct drm_mode_mode_cmd) /* deprecated (never worked) */
    786 #define DRM_IOCTL_MODE_DETACHMODE	DRM_IOWR(0xA9, struct drm_mode_mode_cmd) /* deprecated (never worked) */
    787 
    788 #define DRM_IOCTL_MODE_GETPROPERTY	DRM_IOWR(0xAA, struct drm_mode_get_property)
    789 #define DRM_IOCTL_MODE_SETPROPERTY	DRM_IOWR(0xAB, struct drm_mode_connector_set_property)
    790 #define DRM_IOCTL_MODE_GETPROPBLOB	DRM_IOWR(0xAC, struct drm_mode_get_blob)
    791 #define DRM_IOCTL_MODE_GETFB		DRM_IOWR(0xAD, struct drm_mode_fb_cmd)
    792 #define DRM_IOCTL_MODE_ADDFB		DRM_IOWR(0xAE, struct drm_mode_fb_cmd)
    793 #define DRM_IOCTL_MODE_RMFB		DRM_IOWR(0xAF, unsigned int)
    794 #define DRM_IOCTL_MODE_PAGE_FLIP	DRM_IOWR(0xB0, struct drm_mode_crtc_page_flip)
    795 #define DRM_IOCTL_MODE_DIRTYFB		DRM_IOWR(0xB1, struct drm_mode_fb_dirty_cmd)
    796 
    797 #define DRM_IOCTL_MODE_CREATE_DUMB DRM_IOWR(0xB2, struct drm_mode_create_dumb)
    798 #define DRM_IOCTL_MODE_MAP_DUMB    DRM_IOWR(0xB3, struct drm_mode_map_dumb)
    799 #define DRM_IOCTL_MODE_DESTROY_DUMB    DRM_IOWR(0xB4, struct drm_mode_destroy_dumb)
    800 #define DRM_IOCTL_MODE_GETPLANERESOURCES DRM_IOWR(0xB5, struct drm_mode_get_plane_res)
    801 #define DRM_IOCTL_MODE_GETPLANE	DRM_IOWR(0xB6, struct drm_mode_get_plane)
    802 #define DRM_IOCTL_MODE_SETPLANE	DRM_IOWR(0xB7, struct drm_mode_set_plane)
    803 #define DRM_IOCTL_MODE_ADDFB2		DRM_IOWR(0xB8, struct drm_mode_fb_cmd2)
    804 #define DRM_IOCTL_MODE_OBJ_GETPROPERTIES	DRM_IOWR(0xB9, struct drm_mode_obj_get_properties)
    805 #define DRM_IOCTL_MODE_OBJ_SETPROPERTY	DRM_IOWR(0xBA, struct drm_mode_obj_set_property)
    806 #define DRM_IOCTL_MODE_CURSOR2		DRM_IOWR(0xBB, struct drm_mode_cursor2)
    807 #define DRM_IOCTL_MODE_ATOMIC		DRM_IOWR(0xBC, struct drm_mode_atomic)
    808 #define DRM_IOCTL_MODE_CREATEPROPBLOB	DRM_IOWR(0xBD, struct drm_mode_create_blob)
    809 #define DRM_IOCTL_MODE_DESTROYPROPBLOB	DRM_IOWR(0xBE, struct drm_mode_destroy_blob)
    810 
    811 /**
    812  * Device specific ioctls should only be in their respective headers
    813  * The device specific ioctl range is from 0x40 to 0x9f.
    814  * Generic IOCTLS restart at 0xA0.
    815  *
    816  * \sa drmCommandNone(), drmCommandRead(), drmCommandWrite(), and
    817  * drmCommandReadWrite().
    818  */
    819 #define DRM_COMMAND_BASE                0x40
    820 #define DRM_COMMAND_END			0xA0
    821 
    822 /**
    823  * Header for events written back to userspace on the drm fd.  The
    824  * type defines the type of event, the length specifies the total
    825  * length of the event (including the header), and user_data is
    826  * typically a 64 bit value passed with the ioctl that triggered the
    827  * event.  A read on the drm fd will always only return complete
    828  * events, that is, if for example the read buffer is 100 bytes, and
    829  * there are two 64 byte events pending, only one will be returned.
    830  *
    831  * Event types 0 - 0x7fffffff are generic drm events, 0x80000000 and
    832  * up are chipset specific.
    833  */
    834 struct drm_event {
    835 	__u32 type;
    836 	__u32 length;
    837 };
    838 
    839 #define DRM_EVENT_VBLANK 0x01
    840 #define DRM_EVENT_FLIP_COMPLETE 0x02
    841 
    842 struct drm_event_vblank {
    843 	struct drm_event base;
    844 	__u64 user_data;
    845 	__u32 tv_sec;
    846 	__u32 tv_usec;
    847 	__u32 sequence;
    848 	__u32 reserved;
    849 };
    850 
    851 /* typedef area */
    852 typedef struct drm_clip_rect drm_clip_rect_t;
    853 typedef struct drm_drawable_info drm_drawable_info_t;
    854 typedef struct drm_tex_region drm_tex_region_t;
    855 typedef struct drm_hw_lock drm_hw_lock_t;
    856 typedef struct drm_version drm_version_t;
    857 typedef struct drm_unique drm_unique_t;
    858 typedef struct drm_list drm_list_t;
    859 typedef struct drm_block drm_block_t;
    860 typedef struct drm_control drm_control_t;
    861 typedef enum drm_map_type drm_map_type_t;
    862 typedef enum drm_map_flags drm_map_flags_t;
    863 typedef struct drm_ctx_priv_map drm_ctx_priv_map_t;
    864 typedef struct drm_map drm_map_t;
    865 typedef struct drm_client drm_client_t;
    866 typedef enum drm_stat_type drm_stat_type_t;
    867 typedef struct drm_stats drm_stats_t;
    868 typedef enum drm_lock_flags drm_lock_flags_t;
    869 typedef struct drm_lock drm_lock_t;
    870 typedef enum drm_dma_flags drm_dma_flags_t;
    871 typedef struct drm_buf_desc drm_buf_desc_t;
    872 typedef struct drm_buf_info drm_buf_info_t;
    873 typedef struct drm_buf_free drm_buf_free_t;
    874 typedef struct drm_buf_pub drm_buf_pub_t;
    875 typedef struct drm_buf_map drm_buf_map_t;
    876 typedef struct drm_dma drm_dma_t;
    877 typedef union drm_wait_vblank drm_wait_vblank_t;
    878 typedef struct drm_agp_mode drm_agp_mode_t;
    879 typedef enum drm_ctx_flags drm_ctx_flags_t;
    880 typedef struct drm_ctx drm_ctx_t;
    881 typedef struct drm_ctx_res drm_ctx_res_t;
    882 typedef struct drm_draw drm_draw_t;
    883 typedef struct drm_update_draw drm_update_draw_t;
    884 typedef struct drm_auth drm_auth_t;
    885 typedef struct drm_irq_busid drm_irq_busid_t;
    886 typedef enum drm_vblank_seq_type drm_vblank_seq_type_t;
    887 
    888 typedef struct drm_agp_buffer drm_agp_buffer_t;
    889 typedef struct drm_agp_binding drm_agp_binding_t;
    890 typedef struct drm_agp_info drm_agp_info_t;
    891 typedef struct drm_scatter_gather drm_scatter_gather_t;
    892 typedef struct drm_set_version drm_set_version_t;
    893 
    894 #if defined(__cplusplus)
    895 }
    896 #endif
    897 
    898 #endif
    899