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 <sys/sysmacros.h>
  60 #include "drm_atomic.h"
  61 #include "drm.h"
  62 #include "queue.h"
  63 #include "drm_linux_list.h"
  64
  65 #ifndef __inline__
  66 #define __inline__      inline
  67 #endif
  68
  69 #if !defined(__FUNCTION__)
  70 #if defined(C99)
  71 #define __FUNCTION__ __func__
  72 #else
  73 #define __FUNCTION__    " "
  74 #endif
  75 #endif
  76
  77 /* DRM space units */
  78 #define DRM_PAGE_SHIFT                  PAGESHIFT
  79 #define DRM_PAGE_SIZE                   (1 << DRM_PAGE_SHIFT)
  80 #define DRM_PAGE_OFFSET                 (DRM_PAGE_SIZE - 1)
  81 #define DRM_PAGE_MASK                   ~(DRM_PAGE_SIZE - 1)
  82 #define DRM_MB2PAGES(x)                 ((x) << 8)
  83 #define DRM_PAGES2BYTES(x)              ((x) << DRM_PAGE_SHIFT)
  84 #define DRM_BYTES2PAGES(x)              ((x) >> DRM_PAGE_SHIFT)
  85 #define DRM_PAGES2KB(x)                 ((x) << 2)
  86 #define DRM_ALIGNED(offset)             (((offset) & DRM_PAGE_OFFSET) == 0)
  87
  88 #define PAGE_SHIFT                      DRM_PAGE_SHIFT
  89 #define PAGE_SIZE                       DRM_PAGE_SIZE
  90
  91 #define DRM_MAX_INSTANCES       8
  92 #define DRM_DEVNODE             "drm"
  93 #define DRM_UNOPENED            0
  94 #define DRM_OPENED              1
  95
  96 #define DRM_HASH_SIZE           16 /* Size of key hash table */
  97 #define DRM_KERNEL_CONTEXT      0  /* Change drm_resctx if changed */
  98 #define DRM_RESERVED_CONTEXTS   1  /* Change drm_resctx if changed */
  99
 100 #define DRM_MEM_DMA        0
 101 #define DRM_MEM_SAREA      1
 102 #define DRM_MEM_DRIVER     2
 103 #define DRM_MEM_MAGIC      3
 104 #define DRM_MEM_IOCTLS     4
 105 #define DRM_MEM_MAPS       5
 106 #define DRM_MEM_BUFS       6
 107 #define DRM_MEM_SEGS       7
 108 #define DRM_MEM_PAGES      8
 109 #define DRM_MEM_FILES     9
 110 #define DRM_MEM_QUEUES    10
 111 #define DRM_MEM_CMDS      11
 112 #define DRM_MEM_MAPPINGS  12
 113 #define DRM_MEM_BUFLISTS  13
 114 #define DRM_MEM_DRMLISTS  14
 115 #define DRM_MEM_TOTALDRM  15
 116 #define DRM_MEM_BOUNDDRM  16
 117 #define DRM_MEM_CTXBITMAP 17
 118 #define DRM_MEM_STUB      18
 119 #define DRM_MEM_SGLISTS   19
 120 #define DRM_MEM_AGPLISTS  20
 121 #define DRM_MEM_CTXLIST   21
 122 #define DRM_MEM_MM              22
 123 #define DRM_MEM_HASHTAB         23
 124 #define DRM_MEM_OBJECTS         24
 125
 126 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
 127 #define DRM_MAP_HASH_OFFSET 0x10000000
 128 #define DRM_MAP_HASH_ORDER 12
 129 #define DRM_OBJECT_HASH_ORDER 12
 130 #define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFFUL >> PAGE_SHIFT) + 1)
 131 #define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFFUL >> PAGE_SHIFT) * 16)
 132 #define DRM_MM_INIT_MAX_PAGES 256
 133
 134
 135 /* Internal types and structures */
 136 #define DRM_ARRAY_SIZE(x) (sizeof (x) / sizeof (x[0]))
 137 #define DRM_MIN(a, b) ((a) < (b) ? (a) : (b))
 138 #define DRM_MAX(a, b) ((a) > (b) ? (a) : (b))
 139
 140 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
 141
 142 #define __OS_HAS_AGP    1
 143
 144 #define DRM_DEV_MOD     (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
 145 #define DRM_DEV_UID     0
 146 #define DRM_DEV_GID     0
 147
 148 #define DRM_CURRENTPID          ddi_get_pid()
 149 #define DRM_SPINLOCK(l)         mutex_enter(l)
 150 #define DRM_SPINUNLOCK(u)       mutex_exit(u)
 151 #define DRM_SPINLOCK_ASSERT(l)
 152 #define DRM_LOCK()      mutex_enter(&dev->dev_lock)
 153 #define DRM_UNLOCK()    mutex_exit(&dev->dev_lock)
 154 #define DRM_LOCK_OWNED()        ASSERT(mutex_owned(&dev->dev_lock))
 155 #define spin_lock_irqsave(l, flag)              mutex_enter(l)
 156 #define spin_unlock_irqrestore(u, flag) mutex_exit(u)
 157 #define spin_lock(l)    mutex_enter(l)
 158 #define spin_unlock(u)  mutex_exit(u)
 159
 160
 161 #define DRM_UDELAY(sec)  ddi_msleep(sec)
 162 #define DRM_MEMORYBARRIER()
 163
 164 typedef struct drm_file         drm_file_t;
 165 typedef struct drm_device       drm_device_t;
 166 typedef struct drm_driver_info drm_driver_t;
 167
 168 #define DRM_DEVICE      drm_device_t *dev = dev1
 169 #define DRM_IOCTL_ARGS  \
 170         drm_device_t *dev1, intptr_t data, drm_file_t *fpriv, int mode
 171
 172 #define DRM_COPYFROM_WITH_RETURN(dest, src, size)       \
 173         if (ddi_copyin((src), (dest), (size), 0)) {     \
 174                 DRM_ERROR("%s: copy from user failed", __func__);       \
 175                 return (EFAULT);        \
 176         }
 177
 178 #define DRM_COPYTO_WITH_RETURN(dest, src, size) \
 179         if (ddi_copyout((src), (dest), (size), 0)) {    \
 180                 DRM_ERROR("%s: copy to user failed", __func__); \
 181                 return (EFAULT);        \
 182         }
 183
 184 #define DRM_COPY_FROM_USER(dest, src, size) \
 185         ddi_copyin((src), (dest), (size), 0) /* flag for src */
 186
 187 #define DRM_COPY_TO_USER(dest, src, size) \
 188         ddi_copyout((src), (dest), (size), 0) /* flags for dest */
 189
 190 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3)  \
 191         ddi_copyin((arg2), (arg1), (arg3), 0)
 192
 193 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3)        \
 194         ddi_copyout((arg2), arg1, arg3, 0)
 195
 196 #define DRM_READ8(map, offset) \
 197         *(volatile uint8_t *)((uintptr_t)((map)->dev_addr) + (offset))
 198 #define DRM_READ16(map, offset) \
 199         *(volatile uint16_t *)((uintptr_t)((map)->dev_addr) + (offset))
 200 #define DRM_READ32(map, offset) \
 201         *(volatile uint32_t *)((uintptr_t)((map)->dev_addr) + (offset))
 202 #define DRM_WRITE8(map, offset, val) \
 203         *(volatile uint8_t *)((uintptr_t)((map)->dev_addr) + (offset)) = (val)
 204 #define DRM_WRITE16(map, offset, val) \
 205         *(volatile uint16_t *)((uintptr_t)((map)->dev_addr) + (offset)) = (val)
 206 #define DRM_WRITE32(map, offset, val) \
 207         *(volatile uint32_t *)((uintptr_t)((map)->dev_addr) + (offset)) = (val)
 208
 209 typedef struct drm_wait_queue {
 210         kcondvar_t      cv;
 211         kmutex_t        lock;
 212 }wait_queue_head_t;
 213
 214 #define DRM_INIT_WAITQUEUE(q, pri)      \
 215 { \
 216         mutex_init(&(q)->lock, NULL, MUTEX_DRIVER, pri); \
 217         cv_init(&(q)->cv, NULL, CV_DRIVER, NULL);       \
 218 }
 219
 220 #define DRM_FINI_WAITQUEUE(q)   \
 221 { \
 222         mutex_destroy(&(q)->lock);      \
 223         cv_destroy(&(q)->cv);   \
 224 }
 225
 226 #define DRM_WAKEUP(q)   \
 227 { \
 228         mutex_enter(&(q)->lock); \
 229         cv_broadcast(&(q)->cv); \
 230         mutex_exit(&(q)->lock); \
 231 }
 232
 233 #define jiffies ddi_get_lbolt()
 234
 235 #define DRM_WAIT_ON(ret, q, timeout, condition)                         \
 236         mutex_enter(&(q)->lock);                                        \
 237         while (!(condition)) {                                          \
 238                 ret = cv_reltimedwait_sig(&(q)->cv, &(q)->lock, timeout,\
 239                     TR_CLOCK_TICK);                                     \
 240                 if (ret == -1) {                                        \
 241                         ret = EBUSY;                                    \
 242                         break;                                          \
 243                 } else if (ret == 0) {                                  \
 244                         ret = EINTR;                                    \
 245                         break;                                          \
 246                 } else {                                                \
 247                         ret = 0;                                        \
 248                 }                                                       \
 249         }                                                               \
 250         mutex_exit(&(q)->lock);
 251
 252 #define DRM_WAIT(ret, q, condition)  \
 253 mutex_enter(&(q)->lock);        \
 254 if (!(condition)) {     \
 255         ret = cv_timedwait_sig(&(q)->cv, &(q)->lock, jiffies + 30 * DRM_HZ); \
 256         if (ret == -1) {                                \
 257                 /* gfx maybe hang */    \
 258                 if (!(condition))       \
 259                         ret = -2;       \
 260         } else {        \
 261                 ret = 0;        \
 262         }       \
 263 } \
 264 mutex_exit(&(q)->lock);
 265
 266
 267 #define DRM_GETSAREA()                                          \
 268 {                                                               \
 269         drm_local_map_t *map;                                   \
 270         DRM_SPINLOCK_ASSERT(&dev->dev_lock);                    \
 271         TAILQ_FOREACH(map, &dev->maplist, link) {               \
 272                 if (map->type == _DRM_SHM &&                    \
 273                         map->flags & _DRM_CONTAINS_LOCK) {      \
 274                         dev_priv->sarea = map;                  \
 275                         break;                                  \
 276                 }                                               \
 277         }                                                       \
 278 }
 279
 280 #define LOCK_TEST_WITH_RETURN(dev, fpriv)                               \
 281         if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) ||              \
 282             dev->lock.filp != fpriv) {                                  \
 283                 DRM_DEBUG("%s called without lock held", __func__);     \
 284                 return (EINVAL);        \
 285         }
 286
 287 #define DRM_IRQ_ARGS    caddr_t arg
 288 #define IRQ_HANDLED             DDI_INTR_CLAIMED
 289 #define IRQ_NONE                DDI_INTR_UNCLAIMED
 290
 291 enum {
 292         DRM_IS_NOT_AGP,
 293         DRM_IS_AGP,
 294         DRM_MIGHT_BE_AGP
 295 };
 296
 297 /* Capabilities taken from src/sys/dev/pci/pcireg.h. */
 298 #ifndef PCIY_AGP
 299 #define PCIY_AGP                0x02
 300 #endif
 301
 302 #ifndef PCIY_EXPRESS
 303 #define PCIY_EXPRESS            0x10
 304 #endif
 305
 306 #define PAGE_ALIGN(addr)        (((addr) + DRM_PAGE_SIZE - 1) & DRM_PAGE_MASK)
 307 #define DRM_SUSER(p)            (crgetsgid(p) == 0 || crgetsuid(p) == 0)
 308
 309 #define DRM_GEM_OBJIDR_HASHNODE 1024
 310 #define idr_list_for_each(entry, head) \
 311         for (int key = 0; key < DRM_GEM_OBJIDR_HASHNODE; key++) \
 312                 list_for_each(entry, &(head)->next[key])
 313
 314 /*
 315  * wait for 400 milliseconds
 316  */
 317 #define DRM_HZ                  drv_usectohz(400000)
 318
 319 typedef unsigned long dma_addr_t;
 320 typedef uint64_t        u64;
 321 typedef uint32_t        u32;
 322 typedef uint16_t        u16;
 323 typedef uint8_t         u8;
 324 typedef uint_t          irqreturn_t;
 325
 326 #define DRM_SUPPORT     1
 327 #define DRM_UNSUPPORT   0
 328
 329 #define __OS_HAS_AGP    1
 330
 331 typedef struct drm_pci_id_list
 332 {
 333         int vendor;
 334         int device;
 335         long driver_private;
 336         char *name;
 337 } drm_pci_id_list_t;
 338
 339 #define DRM_AUTH        0x1
 340 #define DRM_MASTER      0x2
 341 #define DRM_ROOT_ONLY   0x4
 342 typedef int drm_ioctl_t(DRM_IOCTL_ARGS);
 343 typedef struct drm_ioctl_desc {
 344         int     (*func)(DRM_IOCTL_ARGS);
 345         int     flags;
 346 } drm_ioctl_desc_t;
 347
 348 typedef struct drm_magic_entry {
 349         drm_magic_t             magic;
 350         struct drm_file         *priv;
 351         struct drm_magic_entry  *next;
 352 } drm_magic_entry_t;
 353
 354 typedef struct drm_magic_head {
 355         struct drm_magic_entry *head;
 356         struct drm_magic_entry *tail;
 357 } drm_magic_head_t;
 358
 359 typedef struct drm_buf {
 360         int             idx;            /* Index into master buflist */
 361         int             total;          /* Buffer size */
 362         int             order;          /* log-base-2(total) */
 363         int             used;           /* Amount of buffer in use (for DMA) */
 364         unsigned long   offset;         /* Byte offset (used internally) */
 365         void            *address;       /* Address of buffer */
 366         unsigned long   bus_address;    /* Bus address of buffer */
 367         struct drm_buf  *next;          /* Kernel-only: used for free list */
 368         volatile int    pending;        /* On hardware DMA queue */
 369         drm_file_t              *filp;
 370                                 /* Uniq. identifier of holding process */
 371         int             context;        /* Kernel queue for this buffer */
 372         enum {
 373                 DRM_LIST_NONE    = 0,
 374                 DRM_LIST_FREE    = 1,
 375                 DRM_LIST_WAIT    = 2,
 376                 DRM_LIST_PEND    = 3,
 377                 DRM_LIST_PRIO    = 4,
 378                 DRM_LIST_RECLAIM = 5
 379         }               list;           /* Which list we're on */
 380
 381         int             dev_priv_size;  /* Size of buffer private stoarge */
 382         void            *dev_private;   /* Per-buffer private storage */
 383 } drm_buf_t;
 384
 385 typedef struct drm_freelist {
 386         int               initialized;  /* Freelist in use              */
 387         uint32_t          count;        /* Number of free buffers       */
 388         drm_buf_t         *next;        /* End pointer                  */
 389
 390         int               low_mark;     /* Low water mark               */
 391         int               high_mark;    /* High water mark              */
 392 } drm_freelist_t;
 393
 394 typedef struct drm_buf_entry {
 395         int               buf_size;
 396         int               buf_count;
 397         drm_buf_t         *buflist;
 398         int               seg_count;
 399         int               page_order;
 400
 401         uint32_t          *seglist;
 402         unsigned long     *seglist_bus;
 403
 404         drm_freelist_t    freelist;
 405 } drm_buf_entry_t;
 406
 407 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
 408
 409 /* BEGIN CSTYLED */
 410 typedef struct drm_local_map {
 411         unsigned long   offset;  /*  Physical address (0 for SAREA)     */
 412         unsigned long   size;    /* Physical size (bytes)               */
 413         drm_map_type_t  type;    /* Type of memory mapped               */
 414         drm_map_flags_t flags;   /* Flags                               */
 415         void            *handle; /* User-space: "Handle" to pass to mmap */
 416                                  /* Kernel-space: kernel-virtual address */
 417         int             mtrr;    /* Boolean: MTRR used                  */
 418                                  /* Private data                        */
 419         int             rid;     /* PCI resource ID for bus_space       */
 420         int             kernel_owned; /* Boolean: 1= initmapped, 0= addmapped */
 421         caddr_t         dev_addr;         /* base device address        */
 422         ddi_acc_handle_t  dev_handle;     /* The data access handle     */
 423         ddi_umem_cookie_t drm_umem_cookie; /* For SAREA alloc and free  */
 424         TAILQ_ENTRY(drm_local_map) link;
 425 } drm_local_map_t;
 426 /* END CSTYLED */
 427
 428 /*
 429  * This structure defines the drm_mm memory object, which will be used by the
 430  * DRM for its buffer objects.
 431  */
 432 struct drm_gem_object {
 433         /* Reference count of this object */
 434         atomic_t refcount;
 435
 436         /* Handle count of this object. Each handle also holds a reference */
 437         atomic_t handlecount;
 438
 439         /* Related drm device */
 440         struct drm_device *dev;
 441
 442         int flink;
 443         /*
 444          * Size of the object, in bytes.  Immutable over the object's
 445          * lifetime.
 446          */
 447         size_t size;
 448
 449         /*
 450          * Global name for this object, starts at 1. 0 means unnamed.
 451          * Access is covered by the object_name_lock in the related drm_device
 452          */
 453         int name;
 454
 455         /*
 456          * Memory domains. These monitor which caches contain read/write data
 457          * related to the object. When transitioning from one set of domains
 458          * to another, the driver is called to ensure that caches are suitably
 459          * flushed and invalidated
 460          */
 461         uint32_t read_domains;
 462         uint32_t write_domain;
 463
 464         /*
 465          * While validating an exec operation, the
 466          * new read/write domain values are computed here.
 467          * They will be transferred to the above values
 468          * at the point that any cache flushing occurs
 469          */
 470         uint32_t pending_read_domains;
 471         uint32_t pending_write_domain;
 472
 473         void *driver_private;
 474
 475         drm_local_map_t *map;
 476         ddi_dma_handle_t dma_hdl;
 477         ddi_acc_handle_t acc_hdl;
 478         caddr_t kaddr;
 479         size_t real_size;       /* real size of memory */
 480         pfn_t *pfnarray;
 481 };
 482
 483 struct idr_list {
 484         struct idr_list *next, *prev;
 485         struct drm_gem_object *obj;
 486         uint32_t        handle;
 487         caddr_t contain_ptr;
 488 };
 489
 490 struct drm_file {
 491         TAILQ_ENTRY(drm_file) link;
 492         int               authenticated;
 493         int               master;
 494         int               minor;
 495         pid_t             pid;
 496         uid_t             uid;
 497         int               refs;
 498         drm_magic_t       magic;
 499         unsigned long     ioctl_count;
 500         void             *driver_priv;
 501         /* Mapping of mm object handles to object pointers. */
 502         struct idr_list object_idr;
 503         /* Lock for synchronization of access to object_idr. */
 504         kmutex_t table_lock;
 505
 506         dev_t dev;
 507         cred_t *credp;
 508 };
 509
 510 typedef struct drm_lock_data {
 511         drm_hw_lock_t   *hw_lock;       /* Hardware lock                */
 512         drm_file_t      *filp;
 513         /* Uniq. identifier of holding process */
 514         kcondvar_t      lock_cv;        /* lock queue - SOLARIS Specific */
 515         kmutex_t        lock_mutex;     /* lock - SOLARIS Specific */
 516         unsigned long   lock_time;      /* Time of last lock in clock ticks */
 517 } drm_lock_data_t;
 518
 519 /*
 520  * This structure, in drm_device_t, is always initialized while the device
 521  * is open.  dev->dma_lock protects the incrementing of dev->buf_use, which
 522  * when set marks that no further bufs may be allocated until device teardown
 523  * occurs (when the last open of the device has closed).  The high/low
 524  * watermarks of bufs are only touched by the X Server, and thus not
 525  * concurrently accessed, so no locking is needed.
 526  */
 527 typedef struct drm_device_dma {
 528         drm_buf_entry_t bufs[DRM_MAX_ORDER+1];
 529         int             buf_count;
 530         drm_buf_t       **buflist;      /* Vector of pointers info bufs    */
 531         int             seg_count;
 532         int             page_count;
 533         unsigned long   *pagelist;
 534         unsigned long   byte_count;
 535         enum {
 536                 _DRM_DMA_USE_AGP = 0x01,
 537                 _DRM_DMA_USE_SG  = 0x02
 538         } flags;
 539 } drm_device_dma_t;
 540
 541 typedef struct drm_agp_mem {
 542         void            *handle;
 543         unsigned long   bound; /* address */
 544         int             pages;
 545         caddr_t         phys_addr;
 546         struct drm_agp_mem *prev;
 547         struct drm_agp_mem *next;
 548 } drm_agp_mem_t;
 549
 550 typedef struct drm_agp_head {
 551         agp_info_t      agp_info;
 552         const char      *chipset;
 553         drm_agp_mem_t   *memory;
 554         unsigned long   mode;
 555         int             enabled;
 556         int             acquired;
 557         unsigned long   base;
 558         int             mtrr;
 559         int             cant_use_aperture;
 560         unsigned long   page_mask;
 561         ldi_ident_t     agpgart_li;
 562         ldi_handle_t    agpgart_lh;
 563 } drm_agp_head_t;
 564
 565
 566 typedef struct drm_dma_handle {
 567         ddi_dma_handle_t        dma_hdl;
 568         ddi_acc_handle_t        acc_hdl;
 569         ddi_dma_cookie_t        cookie;
 570         uint_t          cookie_num;
 571         uintptr_t               vaddr;   /* virtual addr */
 572         uintptr_t               paddr;   /* physical addr */
 573         size_t          real_sz; /* real size of memory */
 574 } drm_dma_handle_t;
 575
 576 typedef struct drm_sg_mem {
 577         unsigned long   handle;
 578         void            *virtual;
 579         int             pages;
 580         dma_addr_t      *busaddr;
 581         ddi_umem_cookie_t       *umem_cookie;
 582         drm_dma_handle_t        *dmah_sg;
 583         drm_dma_handle_t        *dmah_gart; /* Handle to PCI memory */
 584 } drm_sg_mem_t;
 585
 586 /*
 587  * Generic memory manager structs
 588  */
 589
 590 struct drm_mm_node {
 591         struct list_head fl_entry;
 592         struct list_head ml_entry;
 593         int free;
 594         unsigned long start;
 595         unsigned long size;
 596         struct drm_mm *mm;
 597         void *private;
 598 };
 599
 600 struct drm_mm {
 601         struct list_head fl_entry;
 602         struct list_head ml_entry;
 603 };
 604
 605 typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t;
 606
 607 typedef TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig) drm_vbl_sig_list_t;
 608 typedef struct drm_vbl_sig {
 609         TAILQ_ENTRY(drm_vbl_sig) link;
 610         unsigned int    sequence;
 611         int             signo;
 612         int             pid;
 613 } drm_vbl_sig_t;
 614
 615
 616 /* used for clone device */
 617 typedef TAILQ_HEAD(drm_cminor_list, drm_cminor) drm_cminor_list_t;
 618 typedef struct drm_cminor {
 619         TAILQ_ENTRY(drm_cminor) link;
 620         drm_file_t              *fpriv;
 621         int                     minor;
 622 } drm_cminor_t;
 623
 624 /* location of GART table */
 625 #define DRM_ATI_GART_MAIN       1
 626 #define DRM_ATI_GART_FB         2
 627
 628 typedef struct ati_pcigart_info {
 629         int gart_table_location;
 630         int is_pcie;
 631         void *addr;
 632         dma_addr_t bus_addr;
 633         drm_local_map_t mapping;
 634 } drm_ati_pcigart_info;
 635
 636 /* DRM device structure */
 637 struct drm_device;
 638 struct drm_driver_info {
 639         int (*load)(struct drm_device *, unsigned long);
 640         int (*firstopen)(struct drm_device *);
 641         int (*open)(struct drm_device *, drm_file_t *);
 642         void (*preclose)(struct drm_device *, drm_file_t *);
 643         void (*postclose)(struct drm_device *, drm_file_t *);
 644         void (*lastclose)(struct drm_device *);
 645         int (*unload)(struct drm_device *);
 646         void (*reclaim_buffers_locked)(struct drm_device *, drm_file_t *);
 647         int (*presetup)(struct drm_device *);
 648         int (*postsetup)(struct drm_device *);
 649         int (*open_helper)(struct drm_device *, drm_file_t *);
 650         void (*free_filp_priv)(struct drm_device *, drm_file_t *);
 651         void (*release)(struct drm_device *, void *);
 652         int (*dma_ioctl)(DRM_IOCTL_ARGS);
 653         void (*dma_ready)(struct drm_device *);
 654         int (*dma_quiescent)(struct drm_device *);
 655         int (*dma_flush_block_and_flush)(struct drm_device *,
 656                         int, drm_lock_flags_t);
 657         int (*dma_flush_unblock)(struct drm_device *, int,
 658                                         drm_lock_flags_t);
 659         int (*context_ctor)(struct drm_device *, int);
 660         int (*context_dtor)(struct drm_device *, int);
 661         int (*kernel_context_switch)(struct drm_device *, int, int);
 662         int (*kernel_context_switch_unlock)(struct drm_device *);
 663         int (*device_is_agp) (struct drm_device *);
 664         int (*irq_preinstall)(struct drm_device *);
 665         void (*irq_postinstall)(struct drm_device *);
 666         void (*irq_uninstall)(struct drm_device *dev);
 667         uint_t (*irq_handler)(DRM_IRQ_ARGS);
 668         int (*vblank_wait)(struct drm_device *, unsigned int *);
 669         int (*vblank_wait2)(struct drm_device *, unsigned int *);
 670         /* added for intel minimized vblank */
 671         u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
 672         int (*enable_vblank)(struct drm_device *dev, int crtc);
 673         void (*disable_vblank)(struct drm_device *dev, int crtc);
 674
 675         /*
 676          * Driver-specific constructor for drm_gem_objects, to set up
 677          * obj->driver_private.
 678          *
 679          * Returns 0 on success.
 680          */
 681         int (*gem_init_object) (struct drm_gem_object *obj);
 682         void (*gem_free_object) (struct drm_gem_object *obj);
 683
 684
 685         drm_ioctl_desc_t *driver_ioctls;
 686         int     max_driver_ioctl;
 687
 688         int     buf_priv_size;
 689         int     driver_major;
 690         int     driver_minor;
 691         int     driver_patchlevel;
 692         const char *driver_name;        /* Simple driver name              */
 693         const char *driver_desc;        /* Longer driver name              */
 694         const char *driver_date;        /* Date of last major changes.     */
 695
 696         unsigned use_agp :1;
 697         unsigned require_agp :1;
 698         unsigned use_sg :1;
 699         unsigned use_dma :1;
 700         unsigned use_pci_dma :1;
 701         unsigned use_dma_queue :1;
 702         unsigned use_irq :1;
 703         unsigned use_vbl_irq :1;
 704         unsigned use_vbl_irq2 :1;
 705         unsigned use_mtrr :1;
 706         unsigned use_gem;
 707 };
 708
 709 /*
 710  * hardware-specific code needs to initialize mutexes which
 711  * can be used in interrupt context, so they need to know
 712  * the interrupt priority. Interrupt cookie in drm_device
 713  * structure is the intr_block field.
 714  */
 715 #define DRM_INTR_PRI(dev) \
 716         DDI_INTR_PRI((dev)->intr_block)
 717
 718 struct drm_device {
 719         drm_driver_t    *driver;
 720         drm_cminor_list_t       minordevs;
 721         dev_info_t *dip;
 722         void    *drm_handle;
 723         int drm_supported;
 724         const char *desc; /* current driver description */
 725         kmutex_t *irq_mutex;
 726         kcondvar_t *irq_cv;
 727
 728         ddi_iblock_cookie_t intr_block;
 729         uint32_t        pci_device;     /* PCI device id */
 730         uint32_t        pci_vendor;
 731         char            *unique;        /* Unique identifier: e.g., busid  */
 732         int             unique_len;     /* Length of unique field          */
 733         int             if_version;     /* Highest interface version set */
 734         int             flags;  /* Flags to open(2)                */
 735
 736         /* Locks */
 737         kmutex_t        vbl_lock;       /* protects vblank operations */
 738         kmutex_t        dma_lock;       /* protects dev->dma */
 739         kmutex_t        irq_lock;       /* protects irq condition checks */
 740         kmutex_t        dev_lock;       /* protects everything else */
 741         drm_lock_data_t   lock;         /* Information on hardware lock    */
 742         kmutex_t        struct_mutex;   /* < For others */
 743
 744         /* Usage Counters */
 745         int               open_count;   /* Outstanding files open          */
 746         int               buf_use;      /* Buffers in use -- cannot alloc  */
 747
 748         /* Performance counters */
 749         unsigned long     counters;
 750         drm_stat_type_t   types[15];
 751         uint32_t          counts[15];
 752
 753         /* Authentication */
 754         drm_file_list_t   files;
 755         drm_magic_head_t  magiclist[DRM_HASH_SIZE];
 756
 757         /* Linked list of mappable regions. Protected by dev_lock */
 758         drm_map_list_t    maplist;
 759
 760         drm_local_map_t   **context_sareas;
 761         int               max_context;
 762
 763         /* DMA queues (contexts) */
 764         drm_device_dma_t  *dma;         /* Optional pointer for DMA support */
 765
 766         /* Context support */
 767         int               irq;          /* Interrupt used by board         */
 768         int               irq_enabled;  /* True if the irq handler is enabled */
 769         int               pci_domain;
 770         int               pci_bus;
 771         int               pci_slot;
 772         int               pci_func;
 773         atomic_t          context_flag; /* Context swapping flag           */
 774         int               last_context; /* Last current context            */
 775
 776         /* Only used for Radeon */
 777         atomic_t        vbl_received;
 778         atomic_t        vbl_received2;
 779
 780         drm_vbl_sig_list_t vbl_sig_list;
 781         drm_vbl_sig_list_t vbl_sig_list2;
 782         /*
 783          * At load time, disabling the vblank interrupt won't be allowed since
 784          * old clients may not call the modeset ioctl and therefore misbehave.
 785          * Once the modeset ioctl *has* been called though, we can safely
 786          * disable them when unused.
 787          */
 788         int vblank_disable_allowed;
 789
 790         wait_queue_head_t       vbl_queue;      /* vbl wait channel */
 791         /* vbl wait channel array */
 792         wait_queue_head_t       *vbl_queues;
 793
 794         /* number of VBLANK interrupts */
 795         /* (driver must alloc the right number of counters) */
 796         atomic_t          *_vblank_count;
 797         /* signal list to send on VBLANK */
 798         struct drm_vbl_sig_list *vbl_sigs;
 799
 800         /* number of signals pending on all crtcs */
 801         atomic_t          vbl_signal_pending;
 802         /* number of users of vblank interrupts per crtc */
 803         atomic_t          *vblank_refcount;
 804         /* protected by dev->vbl_lock, used for wraparound handling */
 805         u32               *last_vblank;
 806         /* so we don't call enable more than */
 807         atomic_t          *vblank_enabled;
 808         /* Display driver is setting mode */
 809         int             *vblank_inmodeset;
 810         /* Don't wait while crtc is likely disabled */
 811         int             *vblank_suspend;
 812         /* size of vblank counter register */
 813         u32             max_vblank_count;
 814         int             num_crtcs;
 815         kmutex_t        tasklet_lock;
 816         void (*locked_tasklet_func)(struct drm_device *dev);
 817
 818         pid_t             buf_pgid;
 819         drm_agp_head_t    *agp;
 820         drm_sg_mem_t      *sg;  /* Scatter gather memory */
 821         uint32_t          *ctx_bitmap;
 822         void              *dev_private;
 823         unsigned int      agp_buffer_token;
 824         drm_local_map_t   *agp_buffer_map;
 825
 826         kstat_t           *asoft_ksp; /* kstat support */
 827
 828         /* name Drawable information */
 829         kmutex_t        drw_lock;
 830         unsigned int drw_bitfield_length;
 831         u32 *drw_bitfield;
 832         unsigned int drw_info_length;
 833         drm_drawable_info_t **drw_info;
 834
 835         /* \name GEM information */
 836         /* @{ */
 837         kmutex_t object_name_lock;
 838         struct idr_list object_name_idr;
 839         atomic_t object_count;
 840         atomic_t object_memory;
 841         atomic_t pin_count;
 842         atomic_t pin_memory;
 843         atomic_t gtt_count;
 844         atomic_t gtt_memory;
 845         uint32_t gtt_total;
 846         uint32_t invalidate_domains;    /* domains pending invalidation */
 847         uint32_t flush_domains; /* domains pending flush */
 848         /* @} */
 849
 850         /*
 851          * Saving S3 context
 852          */
 853         void              *s3_private;
 854 };
 855
 856 /* Memory management support (drm_memory.c) */
 857 void    drm_mem_init(void);
 858 void    drm_mem_uninit(void);
 859 void    *drm_alloc(size_t, int);
 860 void    *drm_calloc(size_t, size_t, int);
 861 void    *drm_realloc(void *, size_t, size_t, int);
 862 void    drm_free(void *, size_t, int);
 863 int     drm_ioremap(drm_device_t *, drm_local_map_t *);
 864 void    drm_ioremapfree(drm_local_map_t *);
 865
 866 void drm_core_ioremap(struct drm_local_map *, struct drm_device *);
 867 void drm_core_ioremapfree(struct drm_local_map *, struct drm_device *);
 868
 869 void drm_pci_free(drm_device_t *, drm_dma_handle_t *);
 870 void *drm_pci_alloc(drm_device_t *, size_t, size_t, dma_addr_t, int);
 871
 872 struct drm_local_map *drm_core_findmap(struct drm_device *, unsigned long);
 873
 874 int     drm_context_switch(drm_device_t *, int, int);
 875 int     drm_context_switch_complete(drm_device_t *, int);
 876 int     drm_ctxbitmap_init(drm_device_t *);
 877 void    drm_ctxbitmap_cleanup(drm_device_t *);
 878 void    drm_ctxbitmap_free(drm_device_t *, int);
 879 int     drm_ctxbitmap_next(drm_device_t *);
 880
 881 /* Locking IOCTL support (drm_lock.c) */
 882 int     drm_lock_take(drm_lock_data_t *, unsigned int);
 883 int     drm_lock_transfer(drm_device_t *,
 884                         drm_lock_data_t *, unsigned int);
 885 int     drm_lock_free(drm_device_t *,
 886                     volatile unsigned int *, unsigned int);
 887
 888 /* Buffer management support (drm_bufs.c) */
 889 unsigned long drm_get_resource_start(drm_device_t *, unsigned int);
 890 unsigned long drm_get_resource_len(drm_device_t *, unsigned int);
 891 int     drm_initmap(drm_device_t *, unsigned long, unsigned long,
 892     unsigned int, int, int);
 893 void    drm_rmmap(drm_device_t *, drm_local_map_t *);
 894 int     drm_addmap(drm_device_t *, unsigned long, unsigned long,
 895     drm_map_type_t, drm_map_flags_t, drm_local_map_t **);
 896 int     drm_order(unsigned long);
 897
 898 /* DMA support (drm_dma.c) */
 899 int     drm_dma_setup(drm_device_t *);
 900 void    drm_dma_takedown(drm_device_t *);
 901 void    drm_free_buffer(drm_device_t *, drm_buf_t *);
 902 void    drm_reclaim_buffers(drm_device_t *, drm_file_t *);
 903 #define drm_core_reclaim_buffers        drm_reclaim_buffers
 904
 905 /* IRQ support (drm_irq.c) */
 906 int     drm_irq_install(drm_device_t *);
 907 int     drm_irq_uninstall(drm_device_t *);
 908 uint_t  drm_irq_handler(DRM_IRQ_ARGS);
 909 void    drm_driver_irq_preinstall(drm_device_t *);
 910 void    drm_driver_irq_postinstall(drm_device_t *);
 911 void    drm_driver_irq_uninstall(drm_device_t *);
 912 int     drm_vblank_wait(drm_device_t *, unsigned int *);
 913 void    drm_vbl_send_signals(drm_device_t *);
 914 void    drm_handle_vblank(struct drm_device *dev, int crtc);
 915 u32     drm_vblank_count(struct drm_device *dev, int crtc);
 916 int     drm_vblank_get(struct drm_device *dev, int crtc);
 917 void    drm_vblank_put(struct drm_device *dev, int crtc);
 918 int     drm_vblank_init(struct drm_device *dev, int num_crtcs);
 919 void    drm_vblank_cleanup(struct drm_device *dev);
 920 int    drm_modeset_ctl(DRM_IOCTL_ARGS);
 921
 922 /* AGP/GART support (drm_agpsupport.c) */
 923 int     drm_device_is_agp(drm_device_t *);
 924 int     drm_device_is_pcie(drm_device_t *);
 925 drm_agp_head_t *drm_agp_init(drm_device_t *);
 926 void    drm_agp_fini(drm_device_t *);
 927 int     drm_agp_do_release(drm_device_t *);
 928 void    *drm_agp_allocate_memory(size_t pages,
 929             uint32_t type, drm_device_t *dev);
 930 int     drm_agp_free_memory(agp_allocate_t *handle, drm_device_t *dev);
 931 int     drm_agp_bind_memory(unsigned int, uint32_t, drm_device_t *);
 932 int     drm_agp_unbind_memory(unsigned long, drm_device_t *);
 933 int     drm_agp_bind_pages(drm_device_t *dev,
 934                     pfn_t *pages,
 935                     unsigned long num_pages,
 936                     uint32_t gtt_offset);
 937 int     drm_agp_unbind_pages(drm_device_t *dev,
 938                     unsigned long num_pages,
 939                     uint32_t gtt_offset,
 940                     uint32_t type);
 941 void drm_agp_chipset_flush(struct drm_device *dev);
 942 void drm_agp_rebind(struct drm_device *dev);
 943
 944 /* kstat support (drm_kstats.c) */
 945 int     drm_init_kstats(drm_device_t *);
 946 void    drm_fini_kstats(drm_device_t *);
 947
 948 /* Scatter Gather Support (drm_scatter.c) */
 949 void    drm_sg_cleanup(drm_device_t *, drm_sg_mem_t *);
 950
 951 /* ATI PCIGART support (ati_pcigart.c) */
 952 int     drm_ati_pcigart_init(drm_device_t *, drm_ati_pcigart_info *);
 953 int     drm_ati_pcigart_cleanup(drm_device_t *, drm_ati_pcigart_info *);
 954
 955 /* Locking IOCTL support (drm_drv.c) */
 956 int     drm_lock(DRM_IOCTL_ARGS);
 957 int     drm_unlock(DRM_IOCTL_ARGS);
 958 int     drm_version(DRM_IOCTL_ARGS);
 959 int     drm_setversion(DRM_IOCTL_ARGS);
 960 /* Cache management (drm_cache.c) */
 961 void drm_clflush_pages(caddr_t *pages, unsigned long num_pages);
 962
 963 /* Misc. IOCTL support (drm_ioctl.c) */
 964 int     drm_irq_by_busid(DRM_IOCTL_ARGS);
 965 int     drm_getunique(DRM_IOCTL_ARGS);
 966 int     drm_setunique(DRM_IOCTL_ARGS);
 967 int     drm_getmap(DRM_IOCTL_ARGS);
 968 int     drm_getclient(DRM_IOCTL_ARGS);
 969 int     drm_getstats(DRM_IOCTL_ARGS);
 970 int     drm_noop(DRM_IOCTL_ARGS);
 971
 972 /* Context IOCTL support (drm_context.c) */
 973 int     drm_resctx(DRM_IOCTL_ARGS);
 974 int     drm_addctx(DRM_IOCTL_ARGS);
 975 int     drm_modctx(DRM_IOCTL_ARGS);
 976 int     drm_getctx(DRM_IOCTL_ARGS);
 977 int     drm_switchctx(DRM_IOCTL_ARGS);
 978 int     drm_newctx(DRM_IOCTL_ARGS);
 979 int     drm_rmctx(DRM_IOCTL_ARGS);
 980 int     drm_setsareactx(DRM_IOCTL_ARGS);
 981 int     drm_getsareactx(DRM_IOCTL_ARGS);
 982
 983 /* Drawable IOCTL support (drm_drawable.c) */
 984 int     drm_adddraw(DRM_IOCTL_ARGS);
 985 int     drm_rmdraw(DRM_IOCTL_ARGS);
 986 int     drm_update_draw(DRM_IOCTL_ARGS);
 987
 988 /* Authentication IOCTL support (drm_auth.c) */
 989 int     drm_getmagic(DRM_IOCTL_ARGS);
 990 int     drm_authmagic(DRM_IOCTL_ARGS);
 991 int     drm_remove_magic(drm_device_t *, drm_magic_t);
 992 drm_file_t      *drm_find_file(drm_device_t *, drm_magic_t);
 993 /* Buffer management support (drm_bufs.c) */
 994 int     drm_addmap_ioctl(DRM_IOCTL_ARGS);
 995 int     drm_rmmap_ioctl(DRM_IOCTL_ARGS);
 996 int     drm_addbufs_ioctl(DRM_IOCTL_ARGS);
 997 int     drm_infobufs(DRM_IOCTL_ARGS);
 998 int     drm_markbufs(DRM_IOCTL_ARGS);
 999 int     drm_freebufs(DRM_IOCTL_ARGS);
1000 int     drm_mapbufs(DRM_IOCTL_ARGS);
1001
1002 /* DMA support (drm_dma.c) */
1003 int     drm_dma(DRM_IOCTL_ARGS);
1004
1005 /* IRQ support (drm_irq.c) */
1006 int     drm_control(DRM_IOCTL_ARGS);
1007 int     drm_wait_vblank(DRM_IOCTL_ARGS);
1008
1009 /* AGP/GART support (drm_agpsupport.c) */
1010 int     drm_agp_acquire(DRM_IOCTL_ARGS);
1011 int     drm_agp_release(DRM_IOCTL_ARGS);
1012 int     drm_agp_enable(DRM_IOCTL_ARGS);
1013 int     drm_agp_info(DRM_IOCTL_ARGS);
1014 int     drm_agp_alloc(DRM_IOCTL_ARGS);
1015 int     drm_agp_free(DRM_IOCTL_ARGS);
1016 int     drm_agp_unbind(DRM_IOCTL_ARGS);
1017 int     drm_agp_bind(DRM_IOCTL_ARGS);
1018
1019 /* Scatter Gather Support (drm_scatter.c) */
1020 int     drm_sg_alloc(DRM_IOCTL_ARGS);
1021 int     drm_sg_free(DRM_IOCTL_ARGS);
1022
1023 /*      drm_mm.c        */
1024 struct drm_mm_node *drm_mm_get_block(struct drm_mm_node *parent,
1025                                     unsigned long size, unsigned alignment);
1026 struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
1027                                     unsigned long size,
1028                                     unsigned alignment, int best_match);
1029
1030 extern void drm_mm_clean_ml(const struct drm_mm *mm);
1031 extern int drm_debug_flag;
1032
1033 /* We add function to support DRM_DEBUG,DRM_ERROR,DRM_INFO */
1034 extern void drm_debug(const char *fmt, ...);
1035 extern void drm_error(const char *fmt, ...);
1036 extern void drm_info(const char *fmt, ...);
1037
1038 #ifdef DEBUG
1039 #define DRM_DEBUG               if (drm_debug_flag >= 2) drm_debug
1040 #define DRM_INFO                if (drm_debug_flag >= 1) drm_info
1041 #else
1042 #define DRM_DEBUG(...)
1043 #define DRM_INFO(...)
1044 #endif
1045
1046 #define DRM_ERROR               drm_error
1047
1048
1049 #define MAX_INSTNUMS 16
1050
1051 extern int drm_dev_to_instance(dev_t);
1052 extern int drm_dev_to_minor(dev_t);
1053 extern void *drm_supp_register(dev_info_t *, drm_device_t *);
1054 extern int drm_supp_unregister(void *);
1055
1056 extern int drm_open(drm_device_t *, drm_cminor_t *, int, int, cred_t *);
1057 extern int drm_close(drm_device_t *, int, int, int, cred_t *);
1058 extern int drm_attach(drm_device_t *);
1059 extern int drm_detach(drm_device_t *);
1060 extern int drm_probe(drm_device_t *, drm_pci_id_list_t *);
1061
1062 extern int drm_pci_init(drm_device_t *);
1063 extern void drm_pci_end(drm_device_t *);
1064 extern int pci_get_info(drm_device_t *, int *, int *, int *);
1065 extern int pci_get_irq(drm_device_t *);
1066 extern int pci_get_vendor(drm_device_t *);
1067 extern int pci_get_device(drm_device_t *);
1068
1069 extern struct drm_drawable_info *drm_get_drawable_info(drm_device_t *,
1070                                                         drm_drawable_t);
1071 /* File Operations helpers (drm_fops.c) */
1072 extern drm_file_t *drm_find_file_by_proc(drm_device_t *, cred_t *);
1073 extern drm_cminor_t *drm_find_file_by_minor(drm_device_t *, int);
1074 extern int drm_open_helper(drm_device_t *, drm_cminor_t *, int, int,
1075     cred_t *);
1076
1077 /* Graphics Execution Manager library functions (drm_gem.c) */
1078 int drm_gem_init(struct drm_device *dev);
1079 void drm_gem_object_free(struct drm_gem_object *obj);
1080 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1081                                             size_t size);
1082 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1083
1084 void drm_gem_object_reference(struct drm_gem_object *obj);
1085 void drm_gem_object_unreference(struct drm_gem_object *obj);
1086
1087 int drm_gem_handle_create(struct drm_file *file_priv,
1088                             struct drm_gem_object *obj,
1089                             int *handlep);
1090 void drm_gem_object_handle_reference(struct drm_gem_object *obj);
1091
1092 void drm_gem_object_handle_unreference(struct drm_gem_object *obj);
1093
1094 struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp,
1095                                             int handle);
1096 int drm_gem_close_ioctl(DRM_IOCTL_ARGS);
1097 int drm_gem_flink_ioctl(DRM_IOCTL_ARGS);
1098 int drm_gem_open_ioctl(DRM_IOCTL_ARGS);
1099 void drm_gem_open(struct drm_file *file_private);
1100 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1101
1102
1103 #endif  /* _DRMP_H */