usr/src/uts/common/io/drm/drmP.h

   1 /*
   2  * drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*-
   3  * Created: Mon Jan  4 10:05:05 1999 by faith@precisioninsight.com
   4  */
   5 /*
   6  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
   7  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
   8  * Copyright (c) 2009, Intel Corporation.
   9  * All rights reserved.
  10  *
  11  * Permission is hereby granted, free of charge, to any person obtaining a
  12  * copy of this software and associated documentation files (the "Software"),
  13  * to deal in the Software without restriction, including without limitation
  14  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  15  * and/or sell copies of the Software, and to permit persons to whom the
  16  * Software is furnished to do so, subject to the following conditions:
  17  *
  18  * The above copyright notice and this permission notice (including the next
  19  * paragraph) shall be included in all copies or substantial portions of the
  20  * Software.
  21  *
  22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  23  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  25  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  26  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  27  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  28  * OTHER DEALINGS IN THE SOFTWARE.
  29  *
  30  * Authors:
  31  *    Rickard E. (Rik) Faith <faith@valinux.com>
  32  *    Gareth Hughes <gareth@valinux.com>
  33  *
  34  */
  35
  36 /*
  37  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  38  * Use is subject to license terms.
  39  */
  40
  41 #ifndef _DRMP_H
  42 #define _DRMP_H
  43
  44 #include <sys/sysmacros.h>
  45 #include <sys/types.h>
  46 #include <sys/conf.h>
  47 #include <sys/modctl.h>
  48 #include <sys/stat.h>
  49 #include <sys/file.h>
  50 #include <sys/cmn_err.h>
  51 #include <sys/varargs.h>
  52 #include <sys/pci.h>
  53 #include <sys/ddi.h>
  54 #include <sys/sunddi.h>
  55 #include <sys/sunldi.h>
  56 #include <sys/pmem.h>
  57 #include <sys/agpgart.h>
  58 #include <sys/time.h>
  59 #include "drm_atomic.h"
  60 #include "drm.h"
  61 #include "queue.h"
  62 #include "drm_linux_list.h"
  63
  64 #ifndef __inline__
  65 #define __inline__      inline
  66 #endif
  67
  68 #if !defined(__FUNCTION__)
  69 #if defined(C99)
  70 #define __FUNCTION__ __func__
  71 #else
  72 #define __FUNCTION__    " "
  73 #endif
  74 #endif
  75
  76 /* DRM space units */
  77 #define DRM_PAGE_SHIFT                  PAGESHIFT
  78 #define DRM_PAGE_SIZE                   (1 << DRM_PAGE_SHIFT)
  79 #define DRM_PAGE_OFFSET                 (DRM_PAGE_SIZE - 1)
  80 #define DRM_PAGE_MASK                   ~(DRM_PAGE_SIZE - 1)
  81 #define DRM_MB2PAGES(x)                 ((x) << 8)
  82 #define DRM_PAGES2BYTES(x)              ((x) << DRM_PAGE_SHIFT)
  83 #define DRM_BYTES2PAGES(x)              ((x) >> DRM_PAGE_SHIFT)
  84 #define DRM_PAGES2KB(x)                 ((x) << 2)
  85 #define DRM_ALIGNED(offset)             (((offset) & DRM_PAGE_OFFSET) == 0)
  86
  87 #define PAGE_SHIFT                      DRM_PAGE_SHIFT
  88 #define PAGE_SIZE                       DRM_PAGE_SIZE
  89
  90 #define DRM_MAX_INSTANCES       8
  91 #define DRM_DEVNODE             "drm"
  92 #define DRM_UNOPENED            0
  93 #define DRM_OPENED              1
  94
  95 #define DRM_HASH_SIZE           16 /* Size of key hash table */
  96 #define DRM_KERNEL_CONTEXT      0  /* Change drm_resctx if changed */
  97 #define DRM_RESERVED_CONTEXTS   1  /* Change drm_resctx if changed */
  98
  99 #define DRM_MEM_DMA        0
 100 #define DRM_MEM_SAREA      1
 101 #define DRM_MEM_DRIVER     2
 102 #define DRM_MEM_MAGIC      3
 103 #define DRM_MEM_IOCTLS     4
 104 #define DRM_MEM_MAPS       5
 105 #define DRM_MEM_BUFS       6
 106 #define DRM_MEM_SEGS       7
 107 #define DRM_MEM_PAGES      8
 108 #define DRM_MEM_FILES     9
 109 #define DRM_MEM_QUEUES    10
 110 #define DRM_MEM_CMDS      11
 111 #define DRM_MEM_MAPPINGS  12
 112 #define DRM_MEM_BUFLISTS  13
 113 #define DRM_MEM_DRMLISTS  14
 114 #define DRM_MEM_TOTALDRM  15
 115 #define DRM_MEM_BOUNDDRM  16
 116 #define DRM_MEM_CTXBITMAP 17
 117 #define DRM_MEM_STUB      18
 118 #define DRM_MEM_SGLISTS   19
 119 #define DRM_MEM_AGPLISTS  20
 120 #define DRM_MEM_CTXLIST   21
 121 #define DRM_MEM_MM              22
 122 #define DRM_MEM_HASHTAB         23
 123 #define DRM_MEM_OBJECTS         24
 124
 125 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
 126 #define DRM_MAP_HASH_OFFSET 0x10000000
 127 #define DRM_MAP_HASH_ORDER 12
 128 #define DRM_OBJECT_HASH_ORDER 12
 129 #define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFFUL >> PAGE_SHIFT) + 1)
 130 #define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFFUL >> PAGE_SHIFT) * 16)
 131 #define DRM_MM_INIT_MAX_PAGES 256
 132
 133
 134 /* Internal types and structures */
 135 #define DRM_ARRAY_SIZE(x) (sizeof (x) / sizeof (x[0]))
 136 #define DRM_MIN(a, b) ((a) < (b) ? (a) : (b))
 137 #define DRM_MAX(a, b) ((a) > (b) ? (a) : (b))
 138
 139 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
 140
 141 #define __OS_HAS_AGP    1
 142
 143 #define DRM_DEV_MOD     (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
 144 #define DRM_DEV_UID     0
 145 #define DRM_DEV_GID     0
 146
 147 #define DRM_CURRENTPID          ddi_get_pid()
 148 #define DRM_SPINLOCK(l)         mutex_enter(l)
 149 #define DRM_SPINUNLOCK(u)       mutex_exit(u)
 150 #define DRM_SPINLOCK_ASSERT(l)
 151 #define DRM_LOCK()      mutex_enter(&dev->dev_lock)
 152 #define DRM_UNLOCK()    mutex_exit(&dev->dev_lock)
 153 #define DRM_LOCK_OWNED()        ASSERT(mutex_owned(&dev->dev_lock))
 154 #define spin_lock_irqsave(l, flag)              mutex_enter(l)
 155 #define spin_unlock_irqrestore(u, flag) mutex_exit(u)
 156 #define spin_lock(l)    mutex_enter(l)
 157 #define spin_unlock(u)  mutex_exit(u)
 158
 159
 160 #define DRM_UDELAY(sec)  delay(drv_usectohz(sec *1000))
 161 #define DRM_MEMORYBARRIER()
 162
 163 typedef struct drm_file         drm_file_t;
 164 typedef struct drm_device       drm_device_t;
 165 typedef struct drm_driver_info drm_driver_t;
 166
 167 #define DRM_DEVICE      drm_device_t *dev = dev1
 168 #define DRM_IOCTL_ARGS  \
 169         drm_device_t *dev1, intptr_t data, drm_file_t *fpriv, int mode
 170
 171 #define DRM_COPYFROM_WITH_RETURN(dest, src, size)       \
 172         if (ddi_copyin((src), (dest), (size), 0)) {     \
 173                 DRM_ERROR("%s: copy from user failed", __func__);       \
 174                 return (EFAULT);        \
 175         }
 176
 177 #define DRM_COPYTO_WITH_RETURN(dest, src, size) \
 178         if (ddi_copyout((src), (dest), (size), 0)) {    \
 179                 DRM_ERROR("%s: copy to user failed", __func__); \
 180                 return (EFAULT);        \
 181         }
 182
 183 #define DRM_COPY_FROM_USER(dest, src, size) \
 184         ddi_copyin((src), (dest), (size), 0) /* flag for src */
 185
 186 #define DRM_COPY_TO_USER(dest, src, size) \
 187         ddi_copyout((src), (dest), (size), 0) /* flags for dest */
 188
 189 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3)  \
 190         ddi_copyin((arg2), (arg1), (arg3), 0)
 191
 192 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3)        \
 193         ddi_copyout((arg2), arg1, arg3, 0)
 194
 195 #define DRM_READ8(map, offset) \
 196         *(volatile uint8_t *)((uintptr_t)((map)->dev_addr) + (offset))
 197 #define DRM_READ16(map, offset) \
 198         *(volatile uint16_t *)((uintptr_t)((map)->dev_addr) + (offset))
 199 #define DRM_READ32(map, offset) \
 200         *(volatile uint32_t *)((uintptr_t)((map)->dev_addr) + (offset))
 201 #define DRM_WRITE8(map, offset, val) \
 202         *(volatile uint8_t *)((uintptr_t)((map)->dev_addr) + (offset)) = (val)
 203 #define DRM_WRITE16(map, offset, val) \
 204         *(volatile uint16_t *)((uintptr_t)((map)->dev_addr) + (offset)) = (val)
 205 #define DRM_WRITE32(map, offset, val) \
 206         *(volatile uint32_t *)((uintptr_t)((map)->dev_addr) + (offset)) = (val)
 207
 208 typedef struct drm_wait_queue {
 209         kcondvar_t      cv;
 210         kmutex_t        lock;
 211 }wait_queue_head_t;
 212
 213 #define DRM_INIT_WAITQUEUE(q, pri)      \
 214 { \
 215         mutex_init(&(q)->lock, NULL, MUTEX_DRIVER, pri); \
 216         cv_init(&(q)->cv, NULL, CV_DRIVER, NULL);       \
 217 }
 218
 219 #define DRM_FINI_WAITQUEUE(q)   \
 220 { \
 221         mutex_destroy(&(q)->lock);      \
 222         cv_destroy(&(q)->cv);   \
 223 }
 224
 225 #define DRM_WAKEUP(q)   \
 226 { \
 227         mutex_enter(&(q)->lock); \
 228         cv_broadcast(&(q)->cv); \
 229         mutex_exit(&(q)->lock); \
 230 }
 231
 232 #define jiffies ddi_get_lbolt()
 233
 234 #define DRM_WAIT_ON(ret, q, timeout, condition)                         \
 235         mutex_enter(&(q)->lock);                                        \
 236         while (!(condition)) {                                          \
 237                 ret = cv_reltimedwait_sig(&(q)->cv, &(q)->lock, timeout,\
 238                     TR_CLOCK_TICK);                                     \
 239                 if (ret == -1) {                                        \
 240                         ret = EBUSY;                                    \
 241                         break;                                          \
 242                 } else if (ret == 0) {                                  \
 243                         ret = EINTR;                                    \
 244                         break;                                          \
 245                 } else {                                                \
 246                         ret = 0;                                        \
 247                 }                                                       \
 248         }                                                               \
 249         mutex_exit(&(q)->lock);
 250
 251 #define DRM_WAIT(ret, q, condition)  \
 252 mutex_enter(&(q)->lock);        \
 253 if (!(condition)) {     \
 254         ret = cv_timedwait_sig(&(q)->cv, &(q)->lock, jiffies + 30 * DRM_HZ); \
 255         if (ret == -1) {                                \
 256                 /* gfx maybe hang */    \
 257                 if (!(condition))       \
 258                         ret = -2;       \
 259         } else {        \
 260                 ret = 0;        \
 261         }       \
 262 } \
 263 mutex_exit(&(q)->lock);
 264
 265
 266 #define DRM_GETSAREA()                                          \
 267 {                                                               \
 268         drm_local_map_t *map;                                   \
 269         DRM_SPINLOCK_ASSERT(&dev->dev_lock);                    \
 270         TAILQ_FOREACH(map, &dev->maplist, link) {               \
 271                 if (map->type == _DRM_SHM &&                    \
 272                         map->flags & _DRM_CONTAINS_LOCK) {      \
 273                         dev_priv->sarea = map;                  \
 274                         break;                                  \
 275                 }                                               \
 276         }                                                       \
 277 }
 278
 279 #define LOCK_TEST_WITH_RETURN(dev, fpriv)                               \
 280         if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) ||              \
 281             dev->lock.filp != fpriv) {                                  \
 282                 DRM_DEBUG("%s called without lock held", __func__);     \
 283                 return (EINVAL);        \
 284         }
 285
 286 #define DRM_IRQ_ARGS    caddr_t arg
 287 #define IRQ_HANDLED             DDI_INTR_CLAIMED
 288 #define IRQ_NONE                DDI_INTR_UNCLAIMED
 289
 290 enum {
 291         DRM_IS_NOT_AGP,
 292         DRM_IS_AGP,
 293         DRM_MIGHT_BE_AGP
 294 };
 295
 296 /* Capabilities taken from src/sys/dev/pci/pcireg.h. */
 297 #ifndef PCIY_AGP
 298 #define PCIY_AGP                0x02
 299 #endif
 300
 301 #ifndef PCIY_EXPRESS
 302 #define PCIY_EXPRESS            0x10
 303 #endif
 304
 305 #define PAGE_ALIGN(addr)        (((addr) + DRM_PAGE_SIZE - 1) & DRM_PAGE_MASK)
 306 #define DRM_SUSER(p)            (crgetsgid(p) == 0 || crgetsuid(p) == 0)
 307
 308 #define DRM_GEM_OBJIDR_HASHNODE 1024
 309 #define idr_list_for_each(entry, head) \
 310         for (int key = 0; key < DRM_GEM_OBJIDR_HASHNODE; key++) \
 311                 list_for_each(entry, &(head)->next[key])
 312
 313 /*
 314  * wait for 400 milliseconds
 315  */
 316 #define DRM_HZ                  drv_usectohz(400000)
 317
 318 typedef unsigned long dma_addr_t;
 319 typedef uint64_t        u64;
 320 typedef uint32_t        u32;
 321 typedef uint16_t        u16;
 322 typedef uint8_t         u8;
 323 typedef uint_t          irqreturn_t;
 324
 325 #define DRM_SUPPORT     1
 326 #define DRM_UNSUPPORT   0
 327
 328 #define __OS_HAS_AGP    1
 329
 330 typedef struct drm_pci_id_list
 331 {
 332         int vendor;
 333         int device;
 334         long driver_private;
 335         char *name;
 336 } drm_pci_id_list_t;
 337
 338 #define DRM_AUTH        0x1
 339 #define DRM_MASTER      0x2
 340 #define DRM_ROOT_ONLY   0x4
 341 typedef int drm_ioctl_t(DRM_IOCTL_ARGS);
 342 typedef struct drm_ioctl_desc {
 343         int     (*func)(DRM_IOCTL_ARGS);
 344         int     flags;
 345 } drm_ioctl_desc_t;
 346
 347 typedef struct drm_magic_entry {
 348         drm_magic_t             magic;
 349         struct drm_file         *priv;
 350         struct drm_magic_entry  *next;
 351 } drm_magic_entry_t;
 352
 353 typedef struct drm_magic_head {
 354         struct drm_magic_entry *head;
 355         struct drm_magic_entry *tail;
 356 } drm_magic_head_t;
 357
 358 typedef struct drm_buf {
 359         int             idx;            /* Index into master buflist */
 360         int             total;          /* Buffer size */
 361         int             order;          /* log-base-2(total) */
 362         int             used;           /* Amount of buffer in use (for DMA) */
 363         unsigned long   offset;         /* Byte offset (used internally) */
 364         void            *address;       /* Address of buffer */
 365         unsigned long   bus_address;    /* Bus address of buffer */
 366         struct drm_buf  *next;          /* Kernel-only: used for free list */
 367         volatile int    pending;        /* On hardware DMA queue */
 368         drm_file_t              *filp;
 369                                 /* Uniq. identifier of holding process */
 370         int             context;        /* Kernel queue for this buffer */
 371         enum {
 372                 DRM_LIST_NONE    = 0,
 373                 DRM_LIST_FREE    = 1,
 374                 DRM_LIST_WAIT    = 2,
 375                 DRM_LIST_PEND    = 3,
 376                 DRM_LIST_PRIO    = 4,
 377                 DRM_LIST_RECLAIM = 5
 378         }               list;           /* Which list we're on */
 379
 380         int             dev_priv_size;  /* Size of buffer private stoarge */
 381         void            *dev_private;   /* Per-buffer private storage */
 382 } drm_buf_t;
 383
 384 typedef struct drm_freelist {
 385         int               initialized;  /* Freelist in use              */
 386         uint32_t          count;        /* Number of free buffers       */
 387         drm_buf_t         *next;        /* End pointer                  */
 388
 389         int               low_mark;     /* Low water mark               */
 390         int               high_mark;    /* High water mark              */
 391 } drm_freelist_t;
 392
 393 typedef struct drm_buf_entry {
 394         int               buf_size;
 395         int               buf_count;
 396         drm_buf_t         *buflist;
 397         int               seg_count;
 398         int               page_order;
 399
 400         uint32_t          *seglist;
 401         unsigned long     *seglist_bus;
 402
 403         drm_freelist_t    freelist;
 404 } drm_buf_entry_t;
 405
 406 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
 407
 408 /* BEGIN CSTYLED */
 409 typedef struct drm_local_map {
 410         unsigned long   offset;  /*  Physical address (0 for SAREA)     */
 411         unsigned long   size;    /* Physical size (bytes)               */
 412         drm_map_type_t  type;    /* Type of memory mapped               */
 413         drm_map_flags_t flags;   /* Flags                               */
 414         void            *handle; /* User-space: "Handle" to pass to mmap */
 415                                  /* Kernel-space: kernel-virtual address */
 416         int             mtrr;    /* Boolean: MTRR used                  */
 417                                  /* Private data                        */
 418         int             rid;     /* PCI resource ID for bus_space       */
 419         int             kernel_owned; /* Boolean: 1= initmapped, 0= addmapped */
 420         caddr_t         dev_addr;         /* base device address        */
 421         ddi_acc_handle_t  dev_handle;     /* The data access handle     */
 422         ddi_umem_cookie_t drm_umem_cookie; /* For SAREA alloc and free  */
 423         TAILQ_ENTRY(drm_local_map) link;
 424 } drm_local_map_t;
 425 /* END CSTYLED */
 426
 427 /*
 428  * This structure defines the drm_mm memory object, which will be used by the
 429  * DRM for its buffer objects.
 430  */
 431 struct drm_gem_object {
 432         /* Reference count of this object */
 433         atomic_t refcount;
 434
 435         /* Handle count of this object. Each handle also holds a reference */
 436         atomic_t handlecount;
 437
 438         /* Related drm device */
 439         struct drm_device *dev;
 440
 441         int flink;
 442         /*
 443          * Size of the object, in bytes.  Immutable over the object's
 444          * lifetime.
 445          */
 446         size_t size;
 447
 448         /*
 449          * Global name for this object, starts at 1. 0 means unnamed.
 450          * Access is covered by the object_name_lock in the related drm_device
 451          */
 452         int name;
 453
 454         /*
 455          * Memory domains. These monitor which caches contain read/write data
 456          * related to the object. When transitioning from one set of domains
 457          * to another, the driver is called to ensure that caches are suitably
 458          * flushed and invalidated
 459          */
 460         uint32_t read_domains;
 461         uint32_t write_domain;
 462
 463         /*
 464          * While validating an exec operation, the
 465          * new read/write domain values are computed here.
 466          * They will be transferred to the above values
 467          * at the point that any cache flushing occurs
 468          */
 469         uint32_t pending_read_domains;
 470         uint32_t pending_write_domain;
 471
 472         void *driver_private;
 473
 474         drm_local_map_t *map;
 475         ddi_dma_handle_t dma_hdl;
 476         ddi_acc_handle_t acc_hdl;
 477         caddr_t kaddr;
 478         size_t real_size;       /* real size of memory */
 479         pfn_t *pfnarray;
 480 };
 481
 482 struct idr_list {
 483         struct idr_list *next, *prev;
 484         struct drm_gem_object *obj;
 485         uint32_t        handle;
 486         caddr_t contain_ptr;
 487 };
 488
 489 struct drm_file {
 490         TAILQ_ENTRY(drm_file) link;
 491         int               authenticated;
 492         int               master;
 493         int               minor;
 494         pid_t             pid;
 495         uid_t             uid;
 496         int               refs;
 497         drm_magic_t       magic;
 498         unsigned long     ioctl_count;
 499         void             *driver_priv;
 500         /* Mapping of mm object handles to object pointers. */
 501         struct idr_list object_idr;
 502         /* Lock for synchronization of access to object_idr. */
 503         kmutex_t table_lock;
 504
 505         dev_t dev;
 506         cred_t *credp;
 507 };
 508
 509 typedef struct drm_lock_data {
 510         drm_hw_lock_t   *hw_lock;       /* Hardware lock                */
 511         drm_file_t      *filp;
 512         /* Uniq. identifier of holding process */
 513         kcondvar_t      lock_cv;        /* lock queue - SOLARIS Specific */
 514         kmutex_t        lock_mutex;     /* lock - SOLARIS Specific */
 515         unsigned long   lock_time;      /* Time of last lock in clock ticks */
 516 } drm_lock_data_t;
 517
 518 /*
 519  * This structure, in drm_device_t, is always initialized while the device
 520  * is open.  dev->dma_lock protects the incrementing of dev->buf_use, which
 521  * when set marks that no further bufs may be allocated until device teardown
 522  * occurs (when the last open of the device has closed).  The high/low
 523  * watermarks of bufs are only touched by the X Server, and thus not
 524  * concurrently accessed, so no locking is needed.
 525  */
 526 typedef struct drm_device_dma {
 527         drm_buf_entry_t bufs[DRM_MAX_ORDER+1];
 528         int             buf_count;
 529         drm_buf_t       **buflist;      /* Vector of pointers info bufs    */
 530         int             seg_count;
 531         int             page_count;
 532         unsigned long   *pagelist;
 533         unsigned long   byte_count;
 534         enum {
 535                 _DRM_DMA_USE_AGP = 0x01,
 536                 _DRM_DMA_USE_SG  = 0x02
 537         } flags;
 538 } drm_device_dma_t;
 539
 540 typedef struct drm_agp_mem {
 541         void            *handle;
 542         unsigned long   bound; /* address */
 543         int             pages;
 544         caddr_t         phys_addr;
 545         struct drm_agp_mem *prev;
 546         struct drm_agp_mem *next;
 547 } drm_agp_mem_t;
 548
 549 typedef struct drm_agp_head {
 550         agp_info_t      agp_info;
 551         const char      *chipset;
 552         drm_agp_mem_t   *memory;
 553         unsigned long   mode;
 554         int             enabled;
 555         int             acquired;
 556         unsigned long   base;
 557         int             mtrr;
 558         int             cant_use_aperture;
 559         unsigned long   page_mask;
 560         ldi_ident_t     agpgart_li;
 561         ldi_handle_t    agpgart_lh;
 562 } drm_agp_head_t;
 563
 564
 565 typedef struct drm_dma_handle {
 566         ddi_dma_handle_t        dma_hdl;
 567         ddi_acc_handle_t        acc_hdl;
 568         ddi_dma_cookie_t        cookie;
 569         uint_t          cookie_num;
 570         uintptr_t               vaddr;   /* virtual addr */
 571         uintptr_t               paddr;   /* physical addr */
 572         size_t          real_sz; /* real size of memory */
 573 } drm_dma_handle_t;
 574
 575 typedef struct drm_sg_mem {
 576         unsigned long   handle;
 577         void            *virtual;
 578         int             pages;
 579         dma_addr_t      *busaddr;
 580         ddi_umem_cookie_t       *umem_cookie;
 581         drm_dma_handle_t        *dmah_sg;
 582         drm_dma_handle_t        *dmah_gart; /* Handle to PCI memory */
 583 } drm_sg_mem_t;
 584
 585 /*
 586  * Generic memory manager structs
 587  */
 588
 589 struct drm_mm_node {
 590         struct list_head fl_entry;
 591         struct list_head ml_entry;
 592         int free;
 593         unsigned long start;
 594         unsigned long size;
 595         struct drm_mm *mm;
 596         void *private;
 597 };
 598
 599 struct drm_mm {
 600         struct list_head fl_entry;
 601         struct list_head ml_entry;
 602 };
 603
 604 typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t;
 605
 606 typedef TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig) drm_vbl_sig_list_t;
 607 typedef struct drm_vbl_sig {
 608         TAILQ_ENTRY(drm_vbl_sig) link;
 609         unsigned int    sequence;
 610         int             signo;
 611         int             pid;
 612 } drm_vbl_sig_t;
 613
 614
 615 /* used for clone device */
 616 typedef TAILQ_HEAD(drm_cminor_list, drm_cminor) drm_cminor_list_t;
 617 typedef struct drm_cminor {
 618         TAILQ_ENTRY(drm_cminor) link;
 619         drm_file_t              *fpriv;
 620         int                     minor;
 621 } drm_cminor_t;
 622
 623 /* location of GART table */
 624 #define DRM_ATI_GART_MAIN       1
 625 #define DRM_ATI_GART_FB         2
 626
 627 typedef struct ati_pcigart_info {
 628         int gart_table_location;
 629         int is_pcie;
 630         void *addr;
 631         dma_addr_t bus_addr;
 632         drm_local_map_t mapping;
 633 } drm_ati_pcigart_info;
 634
 635 /* DRM device structure */
 636 struct drm_device;
 637 struct drm_driver_info {
 638         int (*load)(struct drm_device *, unsigned long);
 639         int (*firstopen)(struct drm_device *);
 640         int (*open)(struct drm_device *, drm_file_t *);
 641         void (*preclose)(struct drm_device *, drm_file_t *);
 642         void (*postclose)(struct drm_device *, drm_file_t *);
 643         void (*lastclose)(struct drm_device *);
 644         int (*unload)(struct drm_device *);
 645         void (*reclaim_buffers_locked)(struct drm_device *, drm_file_t *);
 646         int (*presetup)(struct drm_device *);
 647         int (*postsetup)(struct drm_device *);
 648         int (*open_helper)(struct drm_device *, drm_file_t *);
 649         void (*free_filp_priv)(struct drm_device *, drm_file_t *);
 650         void (*release)(struct drm_device *, void *);
 651         int (*dma_ioctl)(DRM_IOCTL_ARGS);
 652         void (*dma_ready)(struct drm_device *);
 653         int (*dma_quiescent)(struct drm_device *);
 654         int (*dma_flush_block_and_flush)(struct drm_device *,
 655                         int, drm_lock_flags_t);
 656         int (*dma_flush_unblock)(struct drm_device *, int,
 657                                         drm_lock_flags_t);
 658         int (*context_ctor)(struct drm_device *, int);
 659         int (*context_dtor)(struct drm_device *, int);
 660         int (*kernel_context_switch)(struct drm_device *, int, int);
 661         int (*kernel_context_switch_unlock)(struct drm_device *);
 662         int (*device_is_agp) (struct drm_device *);
 663         int (*irq_preinstall)(struct drm_device *);
 664         void (*irq_postinstall)(struct drm_device *);
 665         void (*irq_uninstall)(struct drm_device *dev);
 666         uint_t (*irq_handler)(DRM_IRQ_ARGS);
 667         int (*vblank_wait)(struct drm_device *, unsigned int *);
 668         int (*vblank_wait2)(struct drm_device *, unsigned int *);
 669         /* added for intel minimized vblank */
 670         u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
 671         int (*enable_vblank)(struct drm_device *dev, int crtc);
 672         void (*disable_vblank)(struct drm_device *dev, int crtc);
 673
 674         /*
 675          * Driver-specific constructor for drm_gem_objects, to set up
 676          * obj->driver_private.
 677          *
 678          * Returns 0 on success.
 679          */
 680         int (*gem_init_object) (struct drm_gem_object *obj);
 681         void (*gem_free_object) (struct drm_gem_object *obj);
 682
 683
 684         drm_ioctl_desc_t *driver_ioctls;
 685         int     max_driver_ioctl;
 686
 687         int     buf_priv_size;
 688         int     driver_major;
 689         int     driver_minor;
 690         int     driver_patchlevel;
 691         const char *driver_name;        /* Simple driver name              */
 692         const char *driver_desc;        /* Longer driver name              */
 693         const char *driver_date;        /* Date of last major changes.     */
 694
 695         unsigned use_agp :1;
 696         unsigned require_agp :1;
 697         unsigned use_sg :1;
 698         unsigned use_dma :1;
 699         unsigned use_pci_dma :1;
 700         unsigned use_dma_queue :1;
 701         unsigned use_irq :1;
 702         unsigned use_vbl_irq :1;
 703         unsigned use_vbl_irq2 :1;
 704         unsigned use_mtrr :1;
 705         unsigned use_gem;
 706 };
 707
 708 /*
 709  * hardware-specific code needs to initialize mutexes which
 710  * can be used in interrupt context, so they need to know
 711  * the interrupt priority. Interrupt cookie in drm_device
 712  * structure is the intr_block field.
 713  */
 714 #define DRM_INTR_PRI(dev) \
 715         DDI_INTR_PRI((dev)->intr_block)
 716
 717 struct drm_device {
 718         drm_driver_t    *driver;
 719         drm_cminor_list_t       minordevs;
 720         dev_info_t *dip;
 721         void    *drm_handle;
 722         int drm_supported;
 723         const char *desc; /* current driver description */
 724         kmutex_t *irq_mutex;
 725         kcondvar_t *irq_cv;
 726
 727         ddi_iblock_cookie_t intr_block;
 728         uint32_t        pci_device;     /* PCI device id */
 729         uint32_t        pci_vendor;
 730         char            *unique;        /* Unique identifier: e.g., busid  */
 731         int             unique_len;     /* Length of unique field          */
 732         int             if_version;     /* Highest interface version set */
 733         int             flags;  /* Flags to open(2)                */
 734
 735         /* Locks */
 736         kmutex_t        vbl_lock;       /* protects vblank operations */
 737         kmutex_t        dma_lock;       /* protects dev->dma */
 738         kmutex_t        irq_lock;       /* protects irq condition checks */
 739         kmutex_t        dev_lock;       /* protects everything else */
 740         drm_lock_data_t   lock;         /* Information on hardware lock    */
 741         kmutex_t        struct_mutex;   /* < For others */
 742
 743         /* Usage Counters */
 744         int               open_count;   /* Outstanding files open          */
 745         int               buf_use;      /* Buffers in use -- cannot alloc  */
 746
 747         /* Performance counters */
 748         unsigned long     counters;
 749         drm_stat_type_t   types[15];
 750         uint32_t          counts[15];
 751
 752         /* Authentication */
 753         drm_file_list_t   files;
 754         drm_magic_head_t  magiclist[DRM_HASH_SIZE];
 755
 756         /* Linked list of mappable regions. Protected by dev_lock */
 757         drm_map_list_t    maplist;
 758
 759         drm_local_map_t   **context_sareas;
 760         int               max_context;
 761
 762         /* DMA queues (contexts) */
 763         drm_device_dma_t  *dma;         /* Optional pointer for DMA support */
 764
 765         /* Context support */
 766         int               irq;          /* Interrupt used by board         */
 767         int               irq_enabled;  /* True if the irq handler is enabled */
 768         int               pci_domain;
 769         int               pci_bus;
 770         int               pci_slot;
 771         int               pci_func;
 772         atomic_t          context_flag; /* Context swapping flag           */
 773         int               last_context; /* Last current context            */
 774
 775         /* Only used for Radeon */
 776         atomic_t        vbl_received;
 777         atomic_t        vbl_received2;
 778
 779         drm_vbl_sig_list_t vbl_sig_list;
 780         drm_vbl_sig_list_t vbl_sig_list2;
 781         /*
 782          * At load time, disabling the vblank interrupt won't be allowed since
 783          * old clients may not call the modeset ioctl and therefore misbehave.
 784          * Once the modeset ioctl *has* been called though, we can safely
 785          * disable them when unused.
 786          */
 787         int vblank_disable_allowed;
 788
 789         wait_queue_head_t       vbl_queue;      /* vbl wait channel */
 790         /* vbl wait channel array */
 791         wait_queue_head_t       *vbl_queues;
 792
 793         /* number of VBLANK interrupts */
 794         /* (driver must alloc the right number of counters) */
 795         atomic_t          *_vblank_count;
 796         /* signal list to send on VBLANK */
 797         struct drm_vbl_sig_list *vbl_sigs;
 798
 799         /* number of signals pending on all crtcs */
 800         atomic_t          vbl_signal_pending;
 801         /* number of users of vblank interrupts per crtc */
 802         atomic_t          *vblank_refcount;
 803         /* protected by dev->vbl_lock, used for wraparound handling */
 804         u32               *last_vblank;
 805         /* so we don't call enable more than */
 806         atomic_t          *vblank_enabled;
 807         /* Display driver is setting mode */
 808         int             *vblank_inmodeset;
 809         /* Don't wait while crtc is likely disabled */
 810         int             *vblank_suspend;
 811         /* size of vblank counter register */
 812         u32             max_vblank_count;
 813         int             num_crtcs;
 814         kmutex_t        tasklet_lock;
 815         void (*locked_tasklet_func)(struct drm_device *dev);
 816
 817         pid_t             buf_pgid;
 818         drm_agp_head_t    *agp;
 819         drm_sg_mem_t      *sg;  /* Scatter gather memory */
 820         uint32_t          *ctx_bitmap;
 821         void              *dev_private;
 822         unsigned int      agp_buffer_token;
 823         drm_local_map_t   *agp_buffer_map;
 824
 825         kstat_t           *asoft_ksp; /* kstat support */
 826
 827         /* name Drawable information */
 828         kmutex_t        drw_lock;
 829         unsigned int drw_bitfield_length;
 830         u32 *drw_bitfield;
 831         unsigned int drw_info_length;
 832         drm_drawable_info_t **drw_info;
 833
 834         /* \name GEM information */
 835         /* @{ */
 836         kmutex_t object_name_lock;
 837         struct idr_list object_name_idr;
 838         atomic_t object_count;
 839         atomic_t object_memory;
 840         atomic_t pin_count;
 841         atomic_t pin_memory;
 842         atomic_t gtt_count;
 843         atomic_t gtt_memory;
 844         uint32_t gtt_total;
 845         uint32_t invalidate_domains;    /* domains pending invalidation */
 846         uint32_t flush_domains; /* domains pending flush */
 847         /* @} */
 848
 849         /*
 850          * Saving S3 context
 851          */
 852         void              *s3_private;
 853 };
 854
 855 /* Memory management support (drm_memory.c) */
 856 void    drm_mem_init(void);
 857 void    drm_mem_uninit(void);
 858 void    *drm_alloc(size_t, int);
 859 void    *drm_calloc(size_t, size_t, int);
 860 void    *drm_realloc(void *, size_t, size_t, int);
 861 void    drm_free(void *, size_t, int);
 862 int     drm_ioremap(drm_device_t *, drm_local_map_t *);
 863 void    drm_ioremapfree(drm_local_map_t *);
 864
 865 void drm_core_ioremap(struct drm_local_map *, struct drm_device *);
 866 void drm_core_ioremapfree(struct drm_local_map *, struct drm_device *);
 867
 868 void drm_pci_free(drm_device_t *, drm_dma_handle_t *);
 869 void *drm_pci_alloc(drm_device_t *, size_t, size_t, dma_addr_t, int);
 870
 871 struct drm_local_map *drm_core_findmap(struct drm_device *, unsigned long);
 872
 873 int     drm_context_switch(drm_device_t *, int, int);
 874 int     drm_context_switch_complete(drm_device_t *, int);
 875 int     drm_ctxbitmap_init(drm_device_t *);
 876 void    drm_ctxbitmap_cleanup(drm_device_t *);
 877 void    drm_ctxbitmap_free(drm_device_t *, int);
 878 int     drm_ctxbitmap_next(drm_device_t *);
 879
 880 /* Locking IOCTL support (drm_lock.c) */
 881 int     drm_lock_take(drm_lock_data_t *, unsigned int);
 882 int     drm_lock_transfer(drm_device_t *,
 883                         drm_lock_data_t *, unsigned int);
 884 int     drm_lock_free(drm_device_t *,
 885                     volatile unsigned int *, unsigned int);
 886
 887 /* Buffer management support (drm_bufs.c) */
 888 unsigned long drm_get_resource_start(drm_device_t *, unsigned int);
 889 unsigned long drm_get_resource_len(drm_device_t *, unsigned int);
 890 int     drm_initmap(drm_device_t *, unsigned long, unsigned long,
 891     unsigned int, int, int);
 892 void    drm_rmmap(drm_device_t *, drm_local_map_t *);
 893 int     drm_addmap(drm_device_t *, unsigned long, unsigned long,
 894     drm_map_type_t, drm_map_flags_t, drm_local_map_t **);
 895 int     drm_order(unsigned long);
 896
 897 /* DMA support (drm_dma.c) */
 898 int     drm_dma_setup(drm_device_t *);
 899 void    drm_dma_takedown(drm_device_t *);
 900 void    drm_free_buffer(drm_device_t *, drm_buf_t *);
 901 void    drm_reclaim_buffers(drm_device_t *, drm_file_t *);
 902 #define drm_core_reclaim_buffers        drm_reclaim_buffers
 903
 904 /* IRQ support (drm_irq.c) */
 905 int     drm_irq_install(drm_device_t *);
 906 int     drm_irq_uninstall(drm_device_t *);
 907 uint_t  drm_irq_handler(DRM_IRQ_ARGS);
 908 void    drm_driver_irq_preinstall(drm_device_t *);
 909 void    drm_driver_irq_postinstall(drm_device_t *);
 910 void    drm_driver_irq_uninstall(drm_device_t *);
 911 int     drm_vblank_wait(drm_device_t *, unsigned int *);
 912 void    drm_vbl_send_signals(drm_device_t *);
 913 void    drm_handle_vblank(struct drm_device *dev, int crtc);
 914 u32     drm_vblank_count(struct drm_device *dev, int crtc);
 915 int     drm_vblank_get(struct drm_device *dev, int crtc);
 916 void    drm_vblank_put(struct drm_device *dev, int crtc);
 917 int     drm_vblank_init(struct drm_device *dev, int num_crtcs);
 918 void    drm_vblank_cleanup(struct drm_device *dev);
 919 int    drm_modeset_ctl(DRM_IOCTL_ARGS);
 920
 921 /* AGP/GART support (drm_agpsupport.c) */
 922 int     drm_device_is_agp(drm_device_t *);
 923 int     drm_device_is_pcie(drm_device_t *);
 924 drm_agp_head_t *drm_agp_init(drm_device_t *);
 925 void    drm_agp_fini(drm_device_t *);
 926 int     drm_agp_do_release(drm_device_t *);
 927 void    *drm_agp_allocate_memory(size_t pages,
 928             uint32_t type, drm_device_t *dev);
 929 int     drm_agp_free_memory(agp_allocate_t *handle, drm_device_t *dev);
 930 int     drm_agp_bind_memory(unsigned int, uint32_t, drm_device_t *);
 931 int     drm_agp_unbind_memory(unsigned long, drm_device_t *);
 932 int     drm_agp_bind_pages(drm_device_t *dev,
 933                     pfn_t *pages,
 934                     unsigned long num_pages,
 935                     uint32_t gtt_offset);
 936 int     drm_agp_unbind_pages(drm_device_t *dev,
 937                     unsigned long num_pages,
 938                     uint32_t gtt_offset,
 939                     uint32_t type);
 940 void drm_agp_chipset_flush(struct drm_device *dev);
 941 void drm_agp_rebind(struct drm_device *dev);
 942
 943 /* kstat support (drm_kstats.c) */
 944 int     drm_init_kstats(drm_device_t *);
 945 void    drm_fini_kstats(drm_device_t *);
 946
 947 /* Scatter Gather Support (drm_scatter.c) */
 948 void    drm_sg_cleanup(drm_device_t *, drm_sg_mem_t *);
 949
 950 /* ATI PCIGART support (ati_pcigart.c) */
 951 int     drm_ati_pcigart_init(drm_device_t *, drm_ati_pcigart_info *);
 952 int     drm_ati_pcigart_cleanup(drm_device_t *, drm_ati_pcigart_info *);
 953
 954 /* Locking IOCTL support (drm_drv.c) */
 955 int     drm_lock(DRM_IOCTL_ARGS);
 956 int     drm_unlock(DRM_IOCTL_ARGS);
 957 int     drm_version(DRM_IOCTL_ARGS);
 958 int     drm_setversion(DRM_IOCTL_ARGS);
 959 /* Cache management (drm_cache.c) */
 960 void drm_clflush_pages(caddr_t *pages, unsigned long num_pages);
 961
 962 /* Misc. IOCTL support (drm_ioctl.c) */
 963 int     drm_irq_by_busid(DRM_IOCTL_ARGS);
 964 int     drm_getunique(DRM_IOCTL_ARGS);
 965 int     drm_setunique(DRM_IOCTL_ARGS);
 966 int     drm_getmap(DRM_IOCTL_ARGS);
 967 int     drm_getclient(DRM_IOCTL_ARGS);
 968 int     drm_getstats(DRM_IOCTL_ARGS);
 969 int     drm_noop(DRM_IOCTL_ARGS);
 970
 971 /* Context IOCTL support (drm_context.c) */
 972 int     drm_resctx(DRM_IOCTL_ARGS);
 973 int     drm_addctx(DRM_IOCTL_ARGS);
 974 int     drm_modctx(DRM_IOCTL_ARGS);
 975 int     drm_getctx(DRM_IOCTL_ARGS);
 976 int     drm_switchctx(DRM_IOCTL_ARGS);
 977 int     drm_newctx(DRM_IOCTL_ARGS);
 978 int     drm_rmctx(DRM_IOCTL_ARGS);
 979 int     drm_setsareactx(DRM_IOCTL_ARGS);
 980 int     drm_getsareactx(DRM_IOCTL_ARGS);
 981
 982 /* Drawable IOCTL support (drm_drawable.c) */
 983 int     drm_adddraw(DRM_IOCTL_ARGS);
 984 int     drm_rmdraw(DRM_IOCTL_ARGS);
 985 int     drm_update_draw(DRM_IOCTL_ARGS);
 986
 987 /* Authentication IOCTL support (drm_auth.c) */
 988 int     drm_getmagic(DRM_IOCTL_ARGS);
 989 int     drm_authmagic(DRM_IOCTL_ARGS);
 990 int     drm_remove_magic(drm_device_t *, drm_magic_t);
 991 drm_file_t      *drm_find_file(drm_device_t *, drm_magic_t);
 992 /* Buffer management support (drm_bufs.c) */
 993 int     drm_addmap_ioctl(DRM_IOCTL_ARGS);
 994 int     drm_rmmap_ioctl(DRM_IOCTL_ARGS);
 995 int     drm_addbufs_ioctl(DRM_IOCTL_ARGS);
 996 int     drm_infobufs(DRM_IOCTL_ARGS);
 997 int     drm_markbufs(DRM_IOCTL_ARGS);
 998 int     drm_freebufs(DRM_IOCTL_ARGS);
 999 int     drm_mapbufs(DRM_IOCTL_ARGS);
1000
1001 /* DMA support (drm_dma.c) */
1002 int     drm_dma(DRM_IOCTL_ARGS);
1003
1004 /* IRQ support (drm_irq.c) */
1005 int     drm_control(DRM_IOCTL_ARGS);
1006 int     drm_wait_vblank(DRM_IOCTL_ARGS);
1007
1008 /* AGP/GART support (drm_agpsupport.c) */
1009 int     drm_agp_acquire(DRM_IOCTL_ARGS);
1010 int     drm_agp_release(DRM_IOCTL_ARGS);
1011 int     drm_agp_enable(DRM_IOCTL_ARGS);
1012 int     drm_agp_info(DRM_IOCTL_ARGS);
1013 int     drm_agp_alloc(DRM_IOCTL_ARGS);
1014 int     drm_agp_free(DRM_IOCTL_ARGS);
1015 int     drm_agp_unbind(DRM_IOCTL_ARGS);
1016 int     drm_agp_bind(DRM_IOCTL_ARGS);
1017
1018 /* Scatter Gather Support (drm_scatter.c) */
1019 int     drm_sg_alloc(DRM_IOCTL_ARGS);
1020 int     drm_sg_free(DRM_IOCTL_ARGS);
1021
1022 /*      drm_mm.c        */
1023 struct drm_mm_node *drm_mm_get_block(struct drm_mm_node *parent,
1024                                     unsigned long size, unsigned alignment);
1025 struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
1026                                     unsigned long size,
1027                                     unsigned alignment, int best_match);
1028
1029 extern void drm_mm_clean_ml(const struct drm_mm *mm);
1030 extern int drm_debug_flag;
1031
1032 /* We add function to support DRM_DEBUG,DRM_ERROR,DRM_INFO */
1033 extern void drm_debug(const char *fmt, ...);
1034 extern void drm_error(const char *fmt, ...);
1035 extern void drm_info(const char *fmt, ...);
1036
1037 #ifdef DEBUG
1038 #define DRM_DEBUG               if (drm_debug_flag >= 2) drm_debug
1039 #define DRM_INFO                if (drm_debug_flag >= 1) drm_info
1040 #else
1041 #define DRM_DEBUG(...)
1042 #define DRM_INFO(...)
1043 #endif
1044
1045 #define DRM_ERROR               drm_error
1046
1047
1048 #define MAX_INSTNUMS 16
1049
1050 extern int drm_dev_to_instance(dev_t);
1051 extern int drm_dev_to_minor(dev_t);
1052 extern void *drm_supp_register(dev_info_t *, drm_device_t *);
1053 extern int drm_supp_unregister(void *);
1054
1055 extern int drm_open(drm_device_t *, drm_cminor_t *, int, int, cred_t *);
1056 extern int drm_close(drm_device_t *, int, int, int, cred_t *);
1057 extern int drm_attach(drm_device_t *);
1058 extern int drm_detach(drm_device_t *);
1059 extern int drm_probe(drm_device_t *, drm_pci_id_list_t *);
1060
1061 extern int drm_pci_init(drm_device_t *);
1062 extern void drm_pci_end(drm_device_t *);
1063 extern int pci_get_info(drm_device_t *, int *, int *, int *);
1064 extern int pci_get_irq(drm_device_t *);
1065 extern int pci_get_vendor(drm_device_t *);
1066 extern int pci_get_device(drm_device_t *);
1067
1068 extern struct drm_drawable_info *drm_get_drawable_info(drm_device_t *,
1069                                                         drm_drawable_t);
1070 /* File Operations helpers (drm_fops.c) */
1071 extern drm_file_t *drm_find_file_by_proc(drm_device_t *, cred_t *);
1072 extern drm_cminor_t *drm_find_file_by_minor(drm_device_t *, int);
1073 extern int drm_open_helper(drm_device_t *, drm_cminor_t *, int, int,
1074     cred_t *);
1075
1076 /* Graphics Execution Manager library functions (drm_gem.c) */
1077 int drm_gem_init(struct drm_device *dev);
1078 void drm_gem_object_free(struct drm_gem_object *obj);
1079 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1080                                             size_t size);
1081 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1082
1083 void drm_gem_object_reference(struct drm_gem_object *obj);
1084 void drm_gem_object_unreference(struct drm_gem_object *obj);
1085
1086 int drm_gem_handle_create(struct drm_file *file_priv,
1087                             struct drm_gem_object *obj,
1088                             int *handlep);
1089 void drm_gem_object_handle_reference(struct drm_gem_object *obj);
1090
1091 void drm_gem_object_handle_unreference(struct drm_gem_object *obj);
1092
1093 struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp,
1094                                             int handle);
1095 int drm_gem_close_ioctl(DRM_IOCTL_ARGS);
1096 int drm_gem_flink_ioctl(DRM_IOCTL_ARGS);
1097 int drm_gem_open_ioctl(DRM_IOCTL_ARGS);
1098 void drm_gem_open(struct drm_file *file_private);
1099 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1100
1101
1102 #endif  /* _DRMP_H */