drivers/char/drm/drmP.h

   1 /**
   2  * \file drmP.h
   3  * Private header for Direct Rendering Manager
   4  *
   5  * \author Rickard E. (Rik) Faith <faith@valinux.com>
   6  * \author Gareth Hughes <gareth@valinux.com>
   7  */
   8
   9 /*
  10  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
  11  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
  12  * All rights reserved.
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the "Software"),
  16  * to deal in the Software without restriction, including without limitation
  17  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  18  * and/or sell copies of the Software, and to permit persons to whom the
  19  * Software is furnished to do so, subject to the following conditions:
  20  *
  21  * The above copyright notice and this permission notice (including the next
  22  * paragraph) shall be included in all copies or substantial portions of the
  23  * Software.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  26  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  27  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  28  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  29  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  30  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  31  * OTHER DEALINGS IN THE SOFTWARE.
  32  */
  33
  34 #ifndef _DRM_P_H_
  35 #define _DRM_P_H_
  36
  37 /* If you want the memory alloc debug functionality, change define below */
  38 /* #define DEBUG_MEMORY */
  39
  40 #ifdef __KERNEL__
  41 #ifdef __alpha__
  42 /* add include of current.h so that "current" is defined
  43  * before static inline funcs in wait.h. Doing this so we
  44  * can build the DRM (part of PI DRI). 4/21/2000 S + B */
  45 #include <asm/current.h>
  46 #endif                          /* __alpha__ */
  47 #include <linux/module.h>
  48 #include <linux/kernel.h>
  49 #include <linux/miscdevice.h>
  50 #include <linux/fs.h>
  51 #include <linux/proc_fs.h>
  52 #include <linux/init.h>
  53 #include <linux/file.h>
  54 #include <linux/pci.h>
  55 #include <linux/jiffies.h>
  56 #include <linux/smp_lock.h>     /* For (un)lock_kernel */
  57 #include <linux/mm.h>
  58 #include <linux/cdev.h>
  59 #include <linux/mutex.h>
  60 #if defined(__alpha__) || defined(__powerpc__)
  61 #include <asm/pgtable.h>        /* For pte_wrprotect */
  62 #endif
  63 #include <asm/io.h>
  64 #include <asm/mman.h>
  65 #include <asm/uaccess.h>
  66 #ifdef CONFIG_MTRR
  67 #include <asm/mtrr.h>
  68 #endif
  69 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
  70 #include <linux/types.h>
  71 #include <linux/agp_backend.h>
  72 #endif
  73 #include <linux/workqueue.h>
  74 #include <linux/poll.h>
  75 #include <asm/pgalloc.h>
  76 #include "drm.h"
  77
  78 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
  79 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
  80
  81 #include "drm_os_linux.h"
  82 #include "drm_hashtab.h"
  83
  84 /***********************************************************************/
  85 /** \name DRM template customization defaults */
  86 /*@{*/
  87
  88 /* driver capabilities and requirements mask */
  89 #define DRIVER_USE_AGP     0x1
  90 #define DRIVER_REQUIRE_AGP 0x2
  91 #define DRIVER_USE_MTRR    0x4
  92 #define DRIVER_PCI_DMA     0x8
  93 #define DRIVER_SG          0x10
  94 #define DRIVER_HAVE_DMA    0x20
  95 #define DRIVER_HAVE_IRQ    0x40
  96 #define DRIVER_IRQ_SHARED  0x80
  97 #define DRIVER_IRQ_VBL     0x100
  98 #define DRIVER_DMA_QUEUE   0x200
  99 #define DRIVER_FB_DMA      0x400
 100
 101 /***********************************************************************/
 102 /** \name Begin the DRM... */
 103 /*@{*/
 104
 105 #define DRM_DEBUG_CODE 2          /**< Include debugging code if > 1, then
 106                                      also include looping detection. */
 107
 108 #define DRM_HASH_SIZE         16 /**< Size of key hash table. Must be power of 2. */
 109 #define DRM_KERNEL_CONTEXT    0  /**< Change drm_resctx if changed */
 110 #define DRM_RESERVED_CONTEXTS 1  /**< Change drm_resctx if changed */
 111 #define DRM_LOOPING_LIMIT     5000000
 112 #define DRM_TIME_SLICE        (HZ/20)  /**< Time slice for GLXContexts */
 113 #define DRM_LOCK_SLICE        1 /**< Time slice for lock, in jiffies */
 114
 115 #define DRM_FLAG_DEBUG    0x01
 116
 117 #define DRM_MEM_DMA        0
 118 #define DRM_MEM_SAREA      1
 119 #define DRM_MEM_DRIVER     2
 120 #define DRM_MEM_MAGIC      3
 121 #define DRM_MEM_IOCTLS     4
 122 #define DRM_MEM_MAPS       5
 123 #define DRM_MEM_VMAS       6
 124 #define DRM_MEM_BUFS       7
 125 #define DRM_MEM_SEGS       8
 126 #define DRM_MEM_PAGES      9
 127 #define DRM_MEM_FILES     10
 128 #define DRM_MEM_QUEUES    11
 129 #define DRM_MEM_CMDS      12
 130 #define DRM_MEM_MAPPINGS  13
 131 #define DRM_MEM_BUFLISTS  14
 132 #define DRM_MEM_AGPLISTS  15
 133 #define DRM_MEM_TOTALAGP  16
 134 #define DRM_MEM_BOUNDAGP  17
 135 #define DRM_MEM_CTXBITMAP 18
 136 #define DRM_MEM_STUB      19
 137 #define DRM_MEM_SGLISTS   20
 138 #define DRM_MEM_CTXLIST   21
 139 #define DRM_MEM_MM        22
 140 #define DRM_MEM_HASHTAB   23
 141
 142 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
 143
 144 /*@}*/
 145
 146 /***********************************************************************/
 147 /** \name Macros to make printk easier */
 148 /*@{*/
 149
 150 /**
 151  * Error output.
 152  *
 153  * \param fmt printf() like format string.
 154  * \param arg arguments
 155  */
 156 #define DRM_ERROR(fmt, arg...) \
 157         printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
 158
 159 /**
 160  * Memory error output.
 161  *
 162  * \param area memory area where the error occurred.
 163  * \param fmt printf() like format string.
 164  * \param arg arguments
 165  */
 166 #define DRM_MEM_ERROR(area, fmt, arg...) \
 167         printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
 168                drm_mem_stats[area].name , ##arg)
 169
 170 #define DRM_INFO(fmt, arg...)  printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
 171
 172 /**
 173  * Debug output.
 174  *
 175  * \param fmt printf() like format string.
 176  * \param arg arguments
 177  */
 178 #if DRM_DEBUG_CODE
 179 #define DRM_DEBUG(fmt, arg...)                                          \
 180         do {                                                            \
 181                 if ( drm_debug )                        \
 182                         printk(KERN_DEBUG                               \
 183                                "[" DRM_NAME ":%s] " fmt ,       \
 184                                __FUNCTION__ , ##arg);                   \
 185         } while (0)
 186 #else
 187 #define DRM_DEBUG(fmt, arg...)           do { } while (0)
 188 #endif
 189
 190 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
 191
 192 #define DRM_PROC_PRINT(fmt, arg...)                                     \
 193    len += sprintf(&buf[len], fmt , ##arg);                              \
 194    if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
 195
 196 #define DRM_PROC_PRINT_RET(ret, fmt, arg...)                            \
 197    len += sprintf(&buf[len], fmt , ##arg);                              \
 198    if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
 199
 200 /*@}*/
 201
 202 /***********************************************************************/
 203 /** \name Internal types and structures */
 204 /*@{*/
 205
 206 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
 207
 208 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
 209 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
 210 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
 211
 212 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
 213 /**
 214  * Get the private SAREA mapping.
 215  *
 216  * \param _dev DRM device.
 217  * \param _ctx context number.
 218  * \param _map output mapping.
 219  */
 220 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do {       \
 221         (_map) = (_dev)->context_sareas[_ctx];          \
 222 } while(0)
 223
 224 /**
 225  * Test that the hardware lock is held by the caller, returning otherwise.
 226  *
 227  * \param dev DRM device.
 228  * \param filp file pointer of the caller.
 229  */
 230 #define LOCK_TEST_WITH_RETURN( dev, filp )                              \
 231 do {                                                                    \
 232         if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) ||           \
 233              dev->lock.filp != filp ) {                         \
 234                 DRM_ERROR( "%s called without lock held\n",             \
 235                            __FUNCTION__ );                              \
 236                 return -EINVAL;                                         \
 237         }                                                               \
 238 } while (0)
 239
 240 /**
 241  * Copy and IOCTL return string to user space
 242  */
 243 #define DRM_COPY( name, value )                                         \
 244         len = strlen( value );                                          \
 245         if ( len > name##_len ) len = name##_len;                       \
 246         name##_len = strlen( value );                                   \
 247         if ( len && name ) {                                            \
 248                 if ( copy_to_user( name, value, len ) )                 \
 249                         return -EFAULT;                                 \
 250         }
 251
 252 /**
 253  * Ioctl function type.
 254  *
 255  * \param inode device inode.
 256  * \param filp file pointer.
 257  * \param cmd command.
 258  * \param arg argument.
 259  */
 260 typedef int drm_ioctl_t(struct inode *inode, struct file *filp,
 261                         unsigned int cmd, unsigned long arg);
 262
 263 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
 264                                unsigned long arg);
 265
 266 #define DRM_AUTH        0x1
 267 #define DRM_MASTER      0x2
 268 #define DRM_ROOT_ONLY   0x4
 269
 270 typedef struct drm_ioctl_desc {
 271         drm_ioctl_t *func;
 272         int flags;
 273 } drm_ioctl_desc_t;
 274
 275 typedef struct drm_devstate {
 276         pid_t owner;                    /**< X server pid holding x_lock */
 277 } drm_devstate_t;
 278
 279 typedef struct drm_magic_entry {
 280         drm_magic_t magic;
 281         struct drm_file *priv;
 282         struct drm_magic_entry *next;
 283 } drm_magic_entry_t;
 284
 285 typedef struct drm_magic_head {
 286         struct drm_magic_entry *head;
 287         struct drm_magic_entry *tail;
 288 } drm_magic_head_t;
 289
 290 typedef struct drm_vma_entry {
 291         struct vm_area_struct *vma;
 292         struct drm_vma_entry *next;
 293         pid_t pid;
 294 } drm_vma_entry_t;
 295
 296 /**
 297  * DMA buffer.
 298  */
 299 typedef struct drm_buf {
 300         int idx;                       /**< Index into master buflist */
 301         int total;                     /**< Buffer size */
 302         int order;                     /**< log-base-2(total) */
 303         int used;                      /**< Amount of buffer in use (for DMA) */
 304         unsigned long offset;          /**< Byte offset (used internally) */
 305         void *address;                 /**< Address of buffer */
 306         unsigned long bus_address;     /**< Bus address of buffer */
 307         struct drm_buf *next;          /**< Kernel-only: used for free list */
 308         __volatile__ int waiting;      /**< On kernel DMA queue */
 309         __volatile__ int pending;      /**< On hardware DMA queue */
 310         wait_queue_head_t dma_wait;    /**< Processes waiting */
 311         struct file *filp;             /**< Pointer to holding file descr */
 312         int context;                   /**< Kernel queue for this buffer */
 313         int while_locked;              /**< Dispatch this buffer while locked */
 314         enum {
 315                 DRM_LIST_NONE = 0,
 316                 DRM_LIST_FREE = 1,
 317                 DRM_LIST_WAIT = 2,
 318                 DRM_LIST_PEND = 3,
 319                 DRM_LIST_PRIO = 4,
 320                 DRM_LIST_RECLAIM = 5
 321         } list;                        /**< Which list we're on */
 322
 323         int dev_priv_size;               /**< Size of buffer private storage */
 324         void *dev_private;               /**< Per-buffer private storage */
 325 } drm_buf_t;
 326
 327 /** bufs is one longer than it has to be */
 328 typedef struct drm_waitlist {
 329         int count;                      /**< Number of possible buffers */
 330         drm_buf_t **bufs;               /**< List of pointers to buffers */
 331         drm_buf_t **rp;                 /**< Read pointer */
 332         drm_buf_t **wp;                 /**< Write pointer */
 333         drm_buf_t **end;                /**< End pointer */
 334         spinlock_t read_lock;
 335         spinlock_t write_lock;
 336 } drm_waitlist_t;
 337
 338 typedef struct drm_freelist {
 339         int initialized;               /**< Freelist in use */
 340         atomic_t count;                /**< Number of free buffers */
 341         drm_buf_t *next;               /**< End pointer */
 342
 343         wait_queue_head_t waiting;     /**< Processes waiting on free bufs */
 344         int low_mark;                  /**< Low water mark */
 345         int high_mark;                 /**< High water mark */
 346         atomic_t wfh;                  /**< If waiting for high mark */
 347         spinlock_t lock;
 348 } drm_freelist_t;
 349
 350 typedef struct drm_dma_handle {
 351         dma_addr_t busaddr;
 352         void *vaddr;
 353         size_t size;
 354 } drm_dma_handle_t;
 355
 356 /**
 357  * Buffer entry.  There is one of this for each buffer size order.
 358  */
 359 typedef struct drm_buf_entry {
 360         int buf_size;                   /**< size */
 361         int buf_count;                  /**< number of buffers */
 362         drm_buf_t *buflist;             /**< buffer list */
 363         int seg_count;
 364         int page_order;
 365         drm_dma_handle_t **seglist;
 366
 367         drm_freelist_t freelist;
 368 } drm_buf_entry_t;
 369
 370 /** File private data */
 371 typedef struct drm_file {
 372         int authenticated;
 373         int master;
 374         int minor;
 375         pid_t pid;
 376         uid_t uid;
 377         drm_magic_t magic;
 378         unsigned long ioctl_count;
 379         struct drm_file *next;
 380         struct drm_file *prev;
 381         struct drm_head *head;
 382         int remove_auth_on_close;
 383         unsigned long lock_count;
 384         void *driver_priv;
 385 } drm_file_t;
 386
 387 /** Wait queue */
 388 typedef struct drm_queue {
 389         atomic_t use_count;             /**< Outstanding uses (+1) */
 390         atomic_t finalization;          /**< Finalization in progress */
 391         atomic_t block_count;           /**< Count of processes waiting */
 392         atomic_t block_read;            /**< Queue blocked for reads */
 393         wait_queue_head_t read_queue;   /**< Processes waiting on block_read */
 394         atomic_t block_write;           /**< Queue blocked for writes */
 395         wait_queue_head_t write_queue;  /**< Processes waiting on block_write */
 396 #if 1
 397         atomic_t total_queued;          /**< Total queued statistic */
 398         atomic_t total_flushed;         /**< Total flushes statistic */
 399         atomic_t total_locks;           /**< Total locks statistics */
 400 #endif
 401         drm_ctx_flags_t flags;          /**< Context preserving and 2D-only */
 402         drm_waitlist_t waitlist;        /**< Pending buffers */
 403         wait_queue_head_t flush_queue;  /**< Processes waiting until flush */
 404 } drm_queue_t;
 405
 406 /**
 407  * Lock data.
 408  */
 409 typedef struct drm_lock_data {
 410         drm_hw_lock_t *hw_lock;         /**< Hardware lock */
 411         struct file *filp;              /**< File descr of lock holder (0=kernel) */
 412         wait_queue_head_t lock_queue;   /**< Queue of blocked processes */
 413         unsigned long lock_time;        /**< Time of last lock in jiffies */
 414 } drm_lock_data_t;
 415
 416 /**
 417  * DMA data.
 418  */
 419 typedef struct drm_device_dma {
 420
 421         drm_buf_entry_t bufs[DRM_MAX_ORDER + 1];        /**< buffers, grouped by their size order */
 422         int buf_count;                  /**< total number of buffers */
 423         drm_buf_t **buflist;            /**< Vector of pointers into drm_device_dma::bufs */
 424         int seg_count;
 425         int page_count;                 /**< number of pages */
 426         unsigned long *pagelist;        /**< page list */
 427         unsigned long byte_count;
 428         enum {
 429                 _DRM_DMA_USE_AGP = 0x01,
 430                 _DRM_DMA_USE_SG = 0x02,
 431                 _DRM_DMA_USE_FB = 0x04
 432         } flags;
 433
 434 } drm_device_dma_t;
 435
 436 /**
 437  * AGP memory entry.  Stored as a doubly linked list.
 438  */
 439 typedef struct drm_agp_mem {
 440         unsigned long handle;           /**< handle */
 441         DRM_AGP_MEM *memory;
 442         unsigned long bound;            /**< address */
 443         int pages;
 444         struct drm_agp_mem *prev;       /**< previous entry */
 445         struct drm_agp_mem *next;       /**< next entry */
 446 } drm_agp_mem_t;
 447
 448 /**
 449  * AGP data.
 450  *
 451  * \sa drm_agp_init() and drm_device::agp.
 452  */
 453 typedef struct drm_agp_head {
 454         DRM_AGP_KERN agp_info;          /**< AGP device information */
 455         drm_agp_mem_t *memory;          /**< memory entries */
 456         unsigned long mode;             /**< AGP mode */
 457         struct agp_bridge_data *bridge;
 458         int enabled;                    /**< whether the AGP bus as been enabled */
 459         int acquired;                   /**< whether the AGP device has been acquired */
 460         unsigned long base;
 461         int agp_mtrr;
 462         int cant_use_aperture;
 463         unsigned long page_mask;
 464 } drm_agp_head_t;
 465
 466 /**
 467  * Scatter-gather memory.
 468  */
 469 typedef struct drm_sg_mem {
 470         unsigned long handle;
 471         void *virtual;
 472         int pages;
 473         struct page **pagelist;
 474         dma_addr_t *busaddr;
 475 } drm_sg_mem_t;
 476
 477 typedef struct drm_sigdata {
 478         int context;
 479         drm_hw_lock_t *lock;
 480 } drm_sigdata_t;
 481
 482 /**
 483  * Mappings list
 484  */
 485 typedef struct drm_map_list {
 486         struct list_head head;          /**< list head */
 487         drm_map_t *map;                 /**< mapping */
 488         unsigned int user_token;
 489 } drm_map_list_t;
 490
 491 typedef drm_map_t drm_local_map_t;
 492
 493 /**
 494  * Context handle list
 495  */
 496 typedef struct drm_ctx_list {
 497         struct list_head head;          /**< list head */
 498         drm_context_t handle;           /**< context handle */
 499         drm_file_t *tag;                /**< associated fd private data */
 500 } drm_ctx_list_t;
 501
 502 typedef struct drm_vbl_sig {
 503         struct list_head head;
 504         unsigned int sequence;
 505         struct siginfo info;
 506         struct task_struct *task;
 507 } drm_vbl_sig_t;
 508
 509 /* location of GART table */
 510 #define DRM_ATI_GART_MAIN 1
 511 #define DRM_ATI_GART_FB   2
 512
 513 typedef struct ati_pcigart_info {
 514         int gart_table_location;
 515         int is_pcie;
 516         void *addr;
 517         dma_addr_t bus_addr;
 518         drm_local_map_t mapping;
 519 } drm_ati_pcigart_info;
 520
 521 /*
 522  * Generic memory manager structs
 523  */
 524 typedef struct drm_mm_node {
 525         struct list_head fl_entry;
 526         struct list_head ml_entry;
 527         int free;
 528         unsigned long start;
 529         unsigned long size;
 530         void *private;
 531 } drm_mm_node_t;
 532
 533 typedef struct drm_mm {
 534         drm_mm_node_t root_node;
 535 } drm_mm_t;
 536
 537 /**
 538  * DRM driver structure. This structure represent the common code for
 539  * a family of cards. There will one drm_device for each card present
 540  * in this family
 541  */
 542 struct drm_device;
 543
 544 struct drm_driver {
 545         int (*load) (struct drm_device *, unsigned long flags);
 546         int (*firstopen) (struct drm_device *);
 547         int (*open) (struct drm_device *, drm_file_t *);
 548         void (*preclose) (struct drm_device *, struct file * filp);
 549         void (*postclose) (struct drm_device *, drm_file_t *);
 550         void (*lastclose) (struct drm_device *);
 551         int (*unload) (struct drm_device *);
 552         int (*dma_ioctl) (DRM_IOCTL_ARGS);
 553         void (*dma_ready) (struct drm_device *);
 554         int (*dma_quiescent) (struct drm_device *);
 555         int (*context_ctor) (struct drm_device * dev, int context);
 556         int (*context_dtor) (struct drm_device * dev, int context);
 557         int (*kernel_context_switch) (struct drm_device * dev, int old,
 558                                       int new);
 559         void (*kernel_context_switch_unlock) (struct drm_device * dev,
 560                                               drm_lock_t *lock);
 561         int (*vblank_wait) (struct drm_device * dev, unsigned int *sequence);
 562         int (*dri_library_name) (struct drm_device *dev, char *buf);
 563
 564         /**
 565          * Called by \c drm_device_is_agp.  Typically used to determine if a
 566          * card is really attached to AGP or not.
 567          *
 568          * \param dev  DRM device handle
 569          *
 570          * \returns
 571          * One of three values is returned depending on whether or not the
 572          * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
 573          * (return of 1), or may or may not be AGP (return of 2).
 574          */
 575         int (*device_is_agp) (struct drm_device * dev);
 576
 577         /* these have to be filled in */
 578
 579         irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
 580         void (*irq_preinstall) (struct drm_device * dev);
 581         void (*irq_postinstall) (struct drm_device * dev);
 582         void (*irq_uninstall) (struct drm_device * dev);
 583         void (*reclaim_buffers) (struct drm_device * dev, struct file * filp);
 584         void (*reclaim_buffers_locked) (struct drm_device *dev,
 585                                         struct file *filp);
 586         unsigned long (*get_map_ofs) (drm_map_t * map);
 587         unsigned long (*get_reg_ofs) (struct drm_device * dev);
 588         void (*set_version) (struct drm_device * dev, drm_set_version_t * sv);
 589
 590         int major;
 591         int minor;
 592         int patchlevel;
 593         char *name;
 594         char *desc;
 595         char *date;
 596
 597         u32 driver_features;
 598         int dev_priv_size;
 599         drm_ioctl_desc_t *ioctls;
 600         int num_ioctls;
 601         struct file_operations fops;
 602         struct pci_driver pci_driver;
 603 };
 604
 605 /**
 606  * DRM head structure. This structure represent a video head on a card
 607  * that may contain multiple heads. Embed one per head of these in the
 608  * private drm_device structure.
 609  */
 610 typedef struct drm_head {
 611         int minor;                      /**< Minor device number */
 612         struct drm_device *dev;
 613         struct proc_dir_entry *dev_root;  /**< proc directory entry */
 614         dev_t device;                   /**< Device number for mknod */
 615         struct class_device *dev_class;
 616 } drm_head_t;
 617
 618 /**
 619  * DRM device structure. This structure represent a complete card that
 620  * may contain multiple heads.
 621  */
 622 typedef struct drm_device {
 623         char *unique;                   /**< Unique identifier: e.g., busid */
 624         int unique_len;                 /**< Length of unique field */
 625         char *devname;                  /**< For /proc/interrupts */
 626         int if_version;                 /**< Highest interface version set */
 627
 628         int blocked;                    /**< Blocked due to VC switch? */
 629
 630         /** \name Locks */
 631         /*@{ */
 632         spinlock_t count_lock;          /**< For inuse, drm_device::open_count, drm_device::buf_use */
 633         struct mutex struct_mutex;      /**< For others */
 634         /*@} */
 635
 636         /** \name Usage Counters */
 637         /*@{ */
 638         int open_count;                 /**< Outstanding files open */
 639         atomic_t ioctl_count;           /**< Outstanding IOCTLs pending */
 640         atomic_t vma_count;             /**< Outstanding vma areas open */
 641         int buf_use;                    /**< Buffers in use -- cannot alloc */
 642         atomic_t buf_alloc;             /**< Buffer allocation in progress */
 643         /*@} */
 644
 645         /** \name Performance counters */
 646         /*@{ */
 647         unsigned long counters;
 648         drm_stat_type_t types[15];
 649         atomic_t counts[15];
 650         /*@} */
 651
 652         /** \name Authentication */
 653         /*@{ */
 654         drm_file_t *file_first;         /**< file list head */
 655         drm_file_t *file_last;          /**< file list tail */
 656         drm_magic_head_t magiclist[DRM_HASH_SIZE];      /**< magic hash table */
 657         /*@} */
 658
 659         /** \name Memory management */
 660         /*@{ */
 661         drm_map_list_t *maplist;        /**< Linked list of regions */
 662         int map_count;                  /**< Number of mappable regions */
 663
 664         /** \name Context handle management */
 665         /*@{ */
 666         drm_ctx_list_t *ctxlist;        /**< Linked list of context handles */
 667         int ctx_count;                  /**< Number of context handles */
 668         struct mutex ctxlist_mutex;     /**< For ctxlist */
 669
 670         drm_map_t **context_sareas;         /**< per-context SAREA's */
 671         int max_context;
 672
 673         drm_vma_entry_t *vmalist;       /**< List of vmas (for debugging) */
 674         drm_lock_data_t lock;           /**< Information on hardware lock */
 675         /*@} */
 676
 677         /** \name DMA queues (contexts) */
 678         /*@{ */
 679         int queue_count;                /**< Number of active DMA queues */
 680         int queue_reserved;               /**< Number of reserved DMA queues */
 681         int queue_slots;                /**< Actual length of queuelist */
 682         drm_queue_t **queuelist;        /**< Vector of pointers to DMA queues */
 683         drm_device_dma_t *dma;          /**< Optional pointer for DMA support */
 684         /*@} */
 685
 686         /** \name Context support */
 687         /*@{ */
 688         int irq;                        /**< Interrupt used by board */
 689         int irq_enabled;                /**< True if irq handler is enabled */
 690         __volatile__ long context_flag; /**< Context swapping flag */
 691         __volatile__ long interrupt_flag; /**< Interruption handler flag */
 692         __volatile__ long dma_flag;     /**< DMA dispatch flag */
 693         struct timer_list timer;        /**< Timer for delaying ctx switch */
 694         wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
 695         int last_checked;               /**< Last context checked for DMA */
 696         int last_context;               /**< Last current context */
 697         unsigned long last_switch;      /**< jiffies at last context switch */
 698         /*@} */
 699
 700         struct work_struct work;
 701         /** \name VBLANK IRQ support */
 702         /*@{ */
 703
 704         wait_queue_head_t vbl_queue;    /**< VBLANK wait queue */
 705         atomic_t vbl_received;
 706         spinlock_t vbl_lock;
 707         drm_vbl_sig_t vbl_sigs;         /**< signal list to send on VBLANK */
 708         unsigned int vbl_pending;
 709
 710         /*@} */
 711         cycles_t ctx_start;
 712         cycles_t lck_start;
 713
 714         struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
 715         wait_queue_head_t buf_readers;  /**< Processes waiting to read */
 716         wait_queue_head_t buf_writers;  /**< Processes waiting to ctx switch */
 717
 718         drm_agp_head_t *agp;    /**< AGP data */
 719
 720         struct pci_dev *pdev;           /**< PCI device structure */
 721 #ifdef __alpha__
 722         struct pci_controller *hose;
 723 #endif
 724         drm_sg_mem_t *sg;       /**< Scatter gather memory */
 725         unsigned long *ctx_bitmap;      /**< context bitmap */
 726         void *dev_private;              /**< device private data */
 727         drm_sigdata_t sigdata;     /**< For block_all_signals */
 728         sigset_t sigmask;
 729
 730         struct drm_driver *driver;
 731         drm_local_map_t *agp_buffer_map;
 732         unsigned int agp_buffer_token;
 733         drm_head_t primary;             /**< primary screen head */
 734 } drm_device_t;
 735
 736 static __inline__ int drm_core_check_feature(struct drm_device *dev,
 737                                              int feature)
 738 {
 739         return ((dev->driver->driver_features & feature) ? 1 : 0);
 740 }
 741
 742 #ifdef __alpha__
 743 #define drm_get_pci_domain(dev) dev->hose->bus->number
 744 #else
 745 #define drm_get_pci_domain(dev) pci_domain_nr(dev->pdev->bus)
 746 #endif
 747
 748 #if __OS_HAS_AGP
 749 static inline int drm_core_has_AGP(struct drm_device *dev)
 750 {
 751         return drm_core_check_feature(dev, DRIVER_USE_AGP);
 752 }
 753 #else
 754 #define drm_core_has_AGP(dev) (0)
 755 #endif
 756
 757 #if __OS_HAS_MTRR
 758 static inline int drm_core_has_MTRR(struct drm_device *dev)
 759 {
 760         return drm_core_check_feature(dev, DRIVER_USE_MTRR);
 761 }
 762
 763 #define DRM_MTRR_WC             MTRR_TYPE_WRCOMB
 764
 765 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
 766                                unsigned int flags)
 767 {
 768         return mtrr_add(offset, size, flags, 1);
 769 }
 770
 771 static inline int drm_mtrr_del(int handle, unsigned long offset,
 772                                unsigned long size, unsigned int flags)
 773 {
 774         return mtrr_del(handle, offset, size);
 775 }
 776
 777 #else
 778 #define drm_core_has_MTRR(dev) (0)
 779
 780 #define DRM_MTRR_WC             0
 781
 782 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
 783                                unsigned int flags)
 784 {
 785         return 0;
 786 }
 787
 788 static inline int drm_mtrr_del(int handle, unsigned long offset,
 789                                unsigned long size, unsigned int flags)
 790 {
 791         return 0;
 792 }
 793 #endif
 794
 795 /******************************************************************/
 796 /** \name Internal function definitions */
 797 /*@{*/
 798
 799                                 /* Driver support (drm_drv.h) */
 800 extern int drm_init(struct drm_driver *driver);
 801 extern void drm_exit(struct drm_driver *driver);
 802 extern int drm_ioctl(struct inode *inode, struct file *filp,
 803                      unsigned int cmd, unsigned long arg);
 804 extern long drm_compat_ioctl(struct file *filp,
 805                              unsigned int cmd, unsigned long arg);
 806 extern int drm_lastclose(drm_device_t *dev);
 807
 808                                 /* Device support (drm_fops.h) */
 809 extern int drm_open(struct inode *inode, struct file *filp);
 810 extern int drm_stub_open(struct inode *inode, struct file *filp);
 811 extern int drm_fasync(int fd, struct file *filp, int on);
 812 extern int drm_release(struct inode *inode, struct file *filp);
 813
 814                                 /* Mapping support (drm_vm.h) */
 815 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
 816 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
 817
 818                                 /* Memory management support (drm_memory.h) */
 819 #include "drm_memory.h"
 820 extern void drm_mem_init(void);
 821 extern int drm_mem_info(char *buf, char **start, off_t offset,
 822                         int request, int *eof, void *data);
 823 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
 824 extern void *drm_ioremap(unsigned long offset, unsigned long size,
 825                          drm_device_t * dev);
 826 extern void drm_ioremapfree(void *pt, unsigned long size, drm_device_t * dev);
 827
 828 extern DRM_AGP_MEM *drm_alloc_agp(drm_device_t * dev, int pages, u32 type);
 829 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
 830 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
 831 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
 832
 833                                 /* Misc. IOCTL support (drm_ioctl.h) */
 834 extern int drm_irq_by_busid(struct inode *inode, struct file *filp,
 835                             unsigned int cmd, unsigned long arg);
 836 extern int drm_getunique(struct inode *inode, struct file *filp,
 837                          unsigned int cmd, unsigned long arg);
 838 extern int drm_setunique(struct inode *inode, struct file *filp,
 839                          unsigned int cmd, unsigned long arg);
 840 extern int drm_getmap(struct inode *inode, struct file *filp,
 841                       unsigned int cmd, unsigned long arg);
 842 extern int drm_getclient(struct inode *inode, struct file *filp,
 843                          unsigned int cmd, unsigned long arg);
 844 extern int drm_getstats(struct inode *inode, struct file *filp,
 845                         unsigned int cmd, unsigned long arg);
 846 extern int drm_setversion(struct inode *inode, struct file *filp,
 847                           unsigned int cmd, unsigned long arg);
 848 extern int drm_noop(struct inode *inode, struct file *filp,
 849                     unsigned int cmd, unsigned long arg);
 850
 851                                 /* Context IOCTL support (drm_context.h) */
 852 extern int drm_resctx(struct inode *inode, struct file *filp,
 853                       unsigned int cmd, unsigned long arg);
 854 extern int drm_addctx(struct inode *inode, struct file *filp,
 855                       unsigned int cmd, unsigned long arg);
 856 extern int drm_modctx(struct inode *inode, struct file *filp,
 857                       unsigned int cmd, unsigned long arg);
 858 extern int drm_getctx(struct inode *inode, struct file *filp,
 859                       unsigned int cmd, unsigned long arg);
 860 extern int drm_switchctx(struct inode *inode, struct file *filp,
 861                          unsigned int cmd, unsigned long arg);
 862 extern int drm_newctx(struct inode *inode, struct file *filp,
 863                       unsigned int cmd, unsigned long arg);
 864 extern int drm_rmctx(struct inode *inode, struct file *filp,
 865                      unsigned int cmd, unsigned long arg);
 866
 867 extern int drm_ctxbitmap_init(drm_device_t * dev);
 868 extern void drm_ctxbitmap_cleanup(drm_device_t * dev);
 869 extern void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle);
 870
 871 extern int drm_setsareactx(struct inode *inode, struct file *filp,
 872                            unsigned int cmd, unsigned long arg);
 873 extern int drm_getsareactx(struct inode *inode, struct file *filp,
 874                            unsigned int cmd, unsigned long arg);
 875
 876                                 /* Drawable IOCTL support (drm_drawable.h) */
 877 extern int drm_adddraw(struct inode *inode, struct file *filp,
 878                        unsigned int cmd, unsigned long arg);
 879 extern int drm_rmdraw(struct inode *inode, struct file *filp,
 880                       unsigned int cmd, unsigned long arg);
 881
 882                                 /* Authentication IOCTL support (drm_auth.h) */
 883 extern int drm_getmagic(struct inode *inode, struct file *filp,
 884                         unsigned int cmd, unsigned long arg);
 885 extern int drm_authmagic(struct inode *inode, struct file *filp,
 886                          unsigned int cmd, unsigned long arg);
 887
 888                                 /* Locking IOCTL support (drm_lock.h) */
 889 extern int drm_lock(struct inode *inode, struct file *filp,
 890                     unsigned int cmd, unsigned long arg);
 891 extern int drm_unlock(struct inode *inode, struct file *filp,
 892                       unsigned int cmd, unsigned long arg);
 893 extern int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context);
 894 extern int drm_lock_free(drm_device_t * dev,
 895                          __volatile__ unsigned int *lock, unsigned int context);
 896
 897                                 /* Buffer management support (drm_bufs.h) */
 898 extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
 899 extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request);
 900 extern int drm_addmap(drm_device_t * dev, unsigned int offset,
 901                       unsigned int size, drm_map_type_t type,
 902                       drm_map_flags_t flags, drm_local_map_t ** map_ptr);
 903 extern int drm_addmap_ioctl(struct inode *inode, struct file *filp,
 904                             unsigned int cmd, unsigned long arg);
 905 extern int drm_rmmap(drm_device_t * dev, drm_local_map_t * map);
 906 extern int drm_rmmap_locked(drm_device_t * dev, drm_local_map_t * map);
 907 extern int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
 908                            unsigned int cmd, unsigned long arg);
 909
 910 extern int drm_order(unsigned long size);
 911 extern int drm_addbufs(struct inode *inode, struct file *filp,
 912                        unsigned int cmd, unsigned long arg);
 913 extern int drm_infobufs(struct inode *inode, struct file *filp,
 914                         unsigned int cmd, unsigned long arg);
 915 extern int drm_markbufs(struct inode *inode, struct file *filp,
 916                         unsigned int cmd, unsigned long arg);
 917 extern int drm_freebufs(struct inode *inode, struct file *filp,
 918                         unsigned int cmd, unsigned long arg);
 919 extern int drm_mapbufs(struct inode *inode, struct file *filp,
 920                        unsigned int cmd, unsigned long arg);
 921 extern unsigned long drm_get_resource_start(drm_device_t * dev,
 922                                             unsigned int resource);
 923 extern unsigned long drm_get_resource_len(drm_device_t * dev,
 924                                           unsigned int resource);
 925
 926                                 /* DMA support (drm_dma.h) */
 927 extern int drm_dma_setup(drm_device_t * dev);
 928 extern void drm_dma_takedown(drm_device_t * dev);
 929 extern void drm_free_buffer(drm_device_t * dev, drm_buf_t * buf);
 930 extern void drm_core_reclaim_buffers(drm_device_t * dev, struct file *filp);
 931
 932                                 /* IRQ support (drm_irq.h) */
 933 extern int drm_control(struct inode *inode, struct file *filp,
 934                        unsigned int cmd, unsigned long arg);
 935 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
 936 extern int drm_irq_uninstall(drm_device_t * dev);
 937 extern void drm_driver_irq_preinstall(drm_device_t * dev);
 938 extern void drm_driver_irq_postinstall(drm_device_t * dev);
 939 extern void drm_driver_irq_uninstall(drm_device_t * dev);
 940
 941 extern int drm_wait_vblank(struct inode *inode, struct file *filp,
 942                            unsigned int cmd, unsigned long arg);
 943 extern int drm_vblank_wait(drm_device_t * dev, unsigned int *vbl_seq);
 944 extern void drm_vbl_send_signals(drm_device_t * dev);
 945
 946                                 /* AGP/GART support (drm_agpsupport.h) */
 947 extern drm_agp_head_t *drm_agp_init(drm_device_t * dev);
 948 extern int drm_agp_acquire(drm_device_t * dev);
 949 extern int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
 950                                  unsigned int cmd, unsigned long arg);
 951 extern int drm_agp_release(drm_device_t * dev);
 952 extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
 953                                  unsigned int cmd, unsigned long arg);
 954 extern int drm_agp_enable(drm_device_t * dev, drm_agp_mode_t mode);
 955 extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
 956                                 unsigned int cmd, unsigned long arg);
 957 extern int drm_agp_info(drm_device_t * dev, drm_agp_info_t * info);
 958 extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
 959                               unsigned int cmd, unsigned long arg);
 960 extern int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request);
 961 extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
 962                          unsigned int cmd, unsigned long arg);
 963 extern int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request);
 964 extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
 965                         unsigned int cmd, unsigned long arg);
 966 extern int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request);
 967 extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
 968                           unsigned int cmd, unsigned long arg);
 969 extern int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request);
 970 extern int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
 971                         unsigned int cmd, unsigned long arg);
 972 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge,
 973                                             size_t pages, u32 type);
 974 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
 975 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
 976 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
 977
 978                                 /* Stub support (drm_stub.h) */
 979 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
 980                        struct drm_driver *driver);
 981 extern int drm_put_dev(drm_device_t * dev);
 982 extern int drm_put_head(drm_head_t * head);
 983 extern unsigned int drm_debug;
 984 extern unsigned int drm_cards_limit;
 985 extern drm_head_t **drm_heads;
 986 extern struct class *drm_class;
 987 extern struct proc_dir_entry *drm_proc_root;
 988
 989                                 /* Proc support (drm_proc.h) */
 990 extern int drm_proc_init(drm_device_t * dev,
 991                          int minor,
 992                          struct proc_dir_entry *root,
 993                          struct proc_dir_entry **dev_root);
 994 extern int drm_proc_cleanup(int minor,
 995                             struct proc_dir_entry *root,
 996                             struct proc_dir_entry *dev_root);
 997
 998                                 /* Scatter Gather Support (drm_scatter.h) */
 999 extern void drm_sg_cleanup(drm_sg_mem_t * entry);
1000 extern int drm_sg_alloc(struct inode *inode, struct file *filp,
1001                         unsigned int cmd, unsigned long arg);
1002 extern int drm_sg_free(struct inode *inode, struct file *filp,
1003                        unsigned int cmd, unsigned long arg);
1004
1005                                /* ATI PCIGART support (ati_pcigart.h) */
1006 extern int drm_ati_pcigart_init(drm_device_t * dev,
1007                                 drm_ati_pcigart_info * gart_info);
1008 extern int drm_ati_pcigart_cleanup(drm_device_t * dev,
1009                                    drm_ati_pcigart_info * gart_info);
1010
1011 extern drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size,
1012                                        size_t align, dma_addr_t maxaddr);
1013 extern void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
1014 extern void drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
1015
1016                                /* sysfs support (drm_sysfs.c) */
1017 extern struct class *drm_sysfs_create(struct module *owner, char *name);
1018 extern void drm_sysfs_destroy(struct class *cs);
1019 extern struct class_device *drm_sysfs_device_add(struct class *cs,
1020                                                  drm_head_t *head);
1021 extern void drm_sysfs_device_remove(struct class_device *class_dev);
1022
1023 /*
1024  * Basic memory manager support (drm_mm.c)
1025  */
1026 extern drm_mm_node_t *drm_mm_get_block(drm_mm_node_t * parent,
1027                                        unsigned long size,
1028                                        unsigned alignment);
1029 extern void drm_mm_put_block(drm_mm_t *mm, drm_mm_node_t *cur);
1030 extern drm_mm_node_t *drm_mm_search_free(const drm_mm_t *mm, unsigned long size,
1031                                          unsigned alignment, int best_match);
1032 extern int drm_mm_init(drm_mm_t *mm, unsigned long start, unsigned long size);
1033 extern void drm_mm_takedown(drm_mm_t *mm);
1034
1035 /* Inline replacements for DRM_IOREMAP macros */
1036 static __inline__ void drm_core_ioremap(struct drm_map *map,
1037                                         struct drm_device *dev)
1038 {
1039         map->handle = drm_ioremap(map->offset, map->size, dev);
1040 }
1041
1042 #if 0
1043 static __inline__ void drm_core_ioremap_nocache(struct drm_map *map,
1044                                                 struct drm_device *dev)
1045 {
1046         map->handle = drm_ioremap_nocache(map->offset, map->size, dev);
1047 }
1048 #endif  /*  0  */
1049
1050 static __inline__ void drm_core_ioremapfree(struct drm_map *map,
1051                                             struct drm_device *dev)
1052 {
1053         if (map->handle && map->size)
1054                 drm_ioremapfree(map->handle, map->size, dev);
1055 }
1056
1057 static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
1058                                                    unsigned int token)
1059 {
1060         drm_map_list_t *_entry;
1061         list_for_each_entry(_entry, &dev->maplist->head, head)
1062             if (_entry->user_token == token)
1063                 return _entry->map;
1064         return NULL;
1065 }
1066
1067 static __inline__ int drm_device_is_agp(drm_device_t * dev)
1068 {
1069         if (dev->driver->device_is_agp != NULL) {
1070                 int err = (*dev->driver->device_is_agp) (dev);
1071
1072                 if (err != 2) {
1073                         return err;
1074                 }
1075         }
1076
1077         return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1078 }
1079
1080 static __inline__ int drm_device_is_pcie(drm_device_t * dev)
1081 {
1082         return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1083 }
1084
1085 static __inline__ void drm_core_dropmap(struct drm_map *map)
1086 {
1087 }
1088
1089 #ifndef DEBUG_MEMORY
1090 /** Wrapper around kmalloc() */
1091 static __inline__ void *drm_alloc(size_t size, int area)
1092 {
1093         return kmalloc(size, GFP_KERNEL);
1094 }
1095
1096 /** Wrapper around kfree() */
1097 static __inline__ void drm_free(void *pt, size_t size, int area)
1098 {
1099         kfree(pt);
1100 }
1101
1102 /** Wrapper around kcalloc() */
1103 static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1104 {
1105         return kcalloc(nmemb, size, GFP_KERNEL);
1106 }
1107 #else
1108 extern void *drm_alloc(size_t size, int area);
1109 extern void drm_free(void *pt, size_t size, int area);
1110 extern void *drm_calloc(size_t nmemb, size_t size, int area);
1111 #endif
1112
1113 /*@}*/
1114
1115 extern unsigned long drm_core_get_map_ofs(drm_map_t * map);
1116 extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
1117
1118 #ifndef pci_pretty_name
1119 #define pci_pretty_name(dev) ""
1120 #endif
1121
1122 #endif                          /* __KERNEL__ */
1123 #endif