Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/drm/drmP.h
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1 /* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*- 2 * Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com 3 * 4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 6 * All rights reserved. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a 9 * copy of this software and associated documentation files (the "Software"), 10 * to deal in the Software without restriction, including without limitation 11 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 12 * and/or sell copies of the Software, and to permit persons to whom the 13 * Software is furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the next 16 * paragraph) shall be included in all copies or substantial portions of the 17 * Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 25 * OTHER DEALINGS IN THE SOFTWARE. 26 * 27 * Authors: 28 * Rickard E. (Rik) Faith <faith@valinux.com> 29 * Gareth Hughes <gareth@valinux.com> 30 * 31 * $FreeBSD: releng/5.0/sys/dev/drm/drmP.h 95746 2002-04-29 18:18:42Z anholt $ 32 */ 33 34 #ifndef _DRM_P_H_ 35 #define _DRM_P_H_ 36 37 #if defined(_KERNEL) || defined(__KERNEL__) 38 39 /* DRM template customization defaults 40 */ 41 #ifndef __HAVE_AGP 42 #define __HAVE_AGP 0 43 #endif 44 #ifndef __HAVE_MTRR 45 #define __HAVE_MTRR 0 46 #endif 47 #ifndef __HAVE_CTX_BITMAP 48 #define __HAVE_CTX_BITMAP 0 49 #endif 50 #ifndef __HAVE_DMA 51 #define __HAVE_DMA 0 52 #endif 53 #ifndef __HAVE_DMA_IRQ 54 #define __HAVE_DMA_IRQ 0 55 #endif 56 #ifndef __HAVE_DMA_WAITLIST 57 #define __HAVE_DMA_WAITLIST 0 58 #endif 59 #ifndef __HAVE_DMA_FREELIST 60 #define __HAVE_DMA_FREELIST 0 61 #endif 62 #ifndef __HAVE_DMA_HISTOGRAM 63 #define __HAVE_DMA_HISTOGRAM 0 64 #endif 65 66 #define DRM_DEBUG_CODE 0 /* Include debugging code (if > 1, then 67 also include looping detection. */ 68 69 typedef struct drm_device drm_device_t; 70 typedef struct drm_file drm_file_t; 71 72 /* There's undoubtably more of this file to go into these OS dependent ones. */ 73 #ifdef __linux__ 74 #include "dev/drm/drm_os_linux.h" 75 #endif /* __linux__ */ 76 77 #ifdef __FreeBSD__ 78 #include "dev/drm/drm_os_freebsd.h" 79 #endif /* __FreeBSD__ */ 80 81 #include "dev/drm/drm.h" 82 83 /* Begin the DRM... */ 84 85 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 86 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 87 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 88 #define DRM_LOOPING_LIMIT 5000000 89 #define DRM_BSZ 1024 /* Buffer size for /dev/drm? output */ 90 #define DRM_LOCK_SLICE 1 /* Time slice for lock, in jiffies */ 91 92 #define DRM_FLAG_DEBUG 0x01 93 #define DRM_FLAG_NOCTX 0x02 94 95 #define DRM_MEM_DMA 0 96 #define DRM_MEM_SAREA 1 97 #define DRM_MEM_DRIVER 2 98 #define DRM_MEM_MAGIC 3 99 #define DRM_MEM_IOCTLS 4 100 #define DRM_MEM_MAPS 5 101 #define DRM_MEM_VMAS 6 102 #define DRM_MEM_BUFS 7 103 #define DRM_MEM_SEGS 8 104 #define DRM_MEM_PAGES 9 105 #define DRM_MEM_FILES 10 106 #define DRM_MEM_QUEUES 11 107 #define DRM_MEM_CMDS 12 108 #define DRM_MEM_MAPPINGS 13 109 #define DRM_MEM_BUFLISTS 14 110 #define DRM_MEM_AGPLISTS 15 111 #define DRM_MEM_TOTALAGP 16 112 #define DRM_MEM_BOUNDAGP 17 113 #define DRM_MEM_CTXBITMAP 18 114 #define DRM_MEM_STUB 19 115 #define DRM_MEM_SGLISTS 20 116 117 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 118 119 /* Mapping helper macros */ 120 #define DRM_IOREMAP(map) \ 121 (map)->handle = DRM(ioremap)( (map)->offset, (map)->size ) 122 123 #define DRM_IOREMAPFREE(map) \ 124 do { \ 125 if ( (map)->handle && (map)->size ) \ 126 DRM(ioremapfree)( (map)->handle, (map)->size ); \ 127 } while (0) 128 129 /* Internal types and structures */ 130 #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 131 #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 132 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 133 134 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1)) 135 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x)) 136 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist) 137 138 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 139 (_map) = (_dev)->context_sareas[_ctx]; \ 140 } while(0) 141 142 typedef int drm_ioctl_t( DRM_OS_IOCTL ); 143 144 typedef struct drm_pci_list { 145 u16 vendor; 146 u16 device; 147 } drm_pci_list_t; 148 149 typedef struct drm_ioctl_desc { 150 drm_ioctl_t *func; 151 int auth_needed; 152 int root_only; 153 } drm_ioctl_desc_t; 154 155 typedef struct drm_devstate { 156 pid_t owner; /* X server pid holding x_lock */ 157 158 } drm_devstate_t; 159 160 typedef struct drm_magic_entry { 161 drm_magic_t magic; 162 struct drm_file *priv; 163 struct drm_magic_entry *next; 164 } drm_magic_entry_t; 165 166 typedef struct drm_magic_head { 167 struct drm_magic_entry *head; 168 struct drm_magic_entry *tail; 169 } drm_magic_head_t; 170 171 typedef struct drm_vma_entry { 172 struct vm_area_struct *vma; 173 struct drm_vma_entry *next; 174 pid_t pid; 175 } drm_vma_entry_t; 176 177 typedef struct drm_buf { 178 int idx; /* Index into master buflist */ 179 int total; /* Buffer size */ 180 int order; /* log-base-2(total) */ 181 int used; /* Amount of buffer in use (for DMA) */ 182 unsigned long offset; /* Byte offset (used internally) */ 183 void *address; /* Address of buffer */ 184 unsigned long bus_address; /* Bus address of buffer */ 185 struct drm_buf *next; /* Kernel-only: used for free list */ 186 __volatile__ int waiting; /* On kernel DMA queue */ 187 __volatile__ int pending; /* On hardware DMA queue */ 188 wait_queue_head_t dma_wait; /* Processes waiting */ 189 pid_t pid; /* PID of holding process */ 190 int context; /* Kernel queue for this buffer */ 191 int while_locked;/* Dispatch this buffer while locked */ 192 enum { 193 DRM_LIST_NONE = 0, 194 DRM_LIST_FREE = 1, 195 DRM_LIST_WAIT = 2, 196 DRM_LIST_PEND = 3, 197 DRM_LIST_PRIO = 4, 198 DRM_LIST_RECLAIM = 5 199 } list; /* Which list we're on */ 200 201 #if DRM_DMA_HISTOGRAM 202 cycles_t time_queued; /* Queued to kernel DMA queue */ 203 cycles_t time_dispatched; /* Dispatched to hardware */ 204 cycles_t time_completed; /* Completed by hardware */ 205 cycles_t time_freed; /* Back on freelist */ 206 #endif 207 208 int dev_priv_size; /* Size of buffer private stoarge */ 209 void *dev_private; /* Per-buffer private storage */ 210 } drm_buf_t; 211 212 #if DRM_DMA_HISTOGRAM 213 #define DRM_DMA_HISTOGRAM_SLOTS 9 214 #define DRM_DMA_HISTOGRAM_INITIAL 10 215 #define DRM_DMA_HISTOGRAM_NEXT(current) ((current)*10) 216 typedef struct drm_histogram { 217 atomic_t total; 218 219 atomic_t queued_to_dispatched[DRM_DMA_HISTOGRAM_SLOTS]; 220 atomic_t dispatched_to_completed[DRM_DMA_HISTOGRAM_SLOTS]; 221 atomic_t completed_to_freed[DRM_DMA_HISTOGRAM_SLOTS]; 222 223 atomic_t queued_to_completed[DRM_DMA_HISTOGRAM_SLOTS]; 224 atomic_t queued_to_freed[DRM_DMA_HISTOGRAM_SLOTS]; 225 226 atomic_t dma[DRM_DMA_HISTOGRAM_SLOTS]; 227 atomic_t schedule[DRM_DMA_HISTOGRAM_SLOTS]; 228 atomic_t ctx[DRM_DMA_HISTOGRAM_SLOTS]; 229 atomic_t lacq[DRM_DMA_HISTOGRAM_SLOTS]; 230 atomic_t lhld[DRM_DMA_HISTOGRAM_SLOTS]; 231 } drm_histogram_t; 232 #endif 233 234 /* bufs is one longer than it has to be */ 235 typedef struct drm_waitlist { 236 int count; /* Number of possible buffers */ 237 drm_buf_t **bufs; /* List of pointers to buffers */ 238 drm_buf_t **rp; /* Read pointer */ 239 drm_buf_t **wp; /* Write pointer */ 240 drm_buf_t **end; /* End pointer */ 241 DRM_OS_SPINTYPE read_lock; 242 DRM_OS_SPINTYPE write_lock; 243 } drm_waitlist_t; 244 245 typedef struct drm_freelist { 246 int initialized; /* Freelist in use */ 247 atomic_t count; /* Number of free buffers */ 248 drm_buf_t *next; /* End pointer */ 249 250 wait_queue_head_t waiting; /* Processes waiting on free bufs */ 251 int low_mark; /* Low water mark */ 252 int high_mark; /* High water mark */ 253 atomic_t wfh; /* If waiting for high mark */ 254 DRM_OS_SPINTYPE lock; 255 } drm_freelist_t; 256 257 typedef struct drm_buf_entry { 258 int buf_size; 259 int buf_count; 260 drm_buf_t *buflist; 261 int seg_count; 262 int page_order; 263 unsigned long *seglist; 264 265 drm_freelist_t freelist; 266 } drm_buf_entry_t; 267 268 typedef struct drm_hw_lock { 269 __volatile__ unsigned int lock; 270 char padding[60]; /* Pad to cache line */ 271 } drm_hw_lock_t; 272 273 #ifdef __linux__ 274 struct drm_file { 275 int authenticated; 276 int minor; 277 pid_t pid; 278 uid_t uid; 279 drm_magic_t magic; 280 unsigned long ioctl_count; 281 struct drm_file *next; 282 struct drm_file *prev; 283 struct drm_device *dev; 284 int remove_auth_on_close; 285 }; 286 #endif /* __linux__ */ 287 #ifdef __FreeBSD__ 288 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 289 struct drm_file { 290 TAILQ_ENTRY(drm_file) link; 291 int authenticated; 292 int minor; 293 pid_t pid; 294 uid_t uid; 295 int refs; 296 drm_magic_t magic; 297 unsigned long ioctl_count; 298 struct drm_device *devXX; 299 }; 300 #endif /* __FreeBSD__ */ 301 302 typedef struct drm_queue { 303 atomic_t use_count; /* Outstanding uses (+1) */ 304 atomic_t finalization; /* Finalization in progress */ 305 atomic_t block_count; /* Count of processes waiting */ 306 atomic_t block_read; /* Queue blocked for reads */ 307 wait_queue_head_t read_queue; /* Processes waiting on block_read */ 308 atomic_t block_write; /* Queue blocked for writes */ 309 wait_queue_head_t write_queue; /* Processes waiting on block_write */ 310 #if 1 311 atomic_t total_queued; /* Total queued statistic */ 312 atomic_t total_flushed;/* Total flushes statistic */ 313 atomic_t total_locks; /* Total locks statistics */ 314 #endif 315 drm_ctx_flags_t flags; /* Context preserving and 2D-only */ 316 drm_waitlist_t waitlist; /* Pending buffers */ 317 wait_queue_head_t flush_queue; /* Processes waiting until flush */ 318 } drm_queue_t; 319 320 typedef struct drm_lock_data { 321 drm_hw_lock_t *hw_lock; /* Hardware lock */ 322 pid_t pid; /* PID of lock holder (0=kernel) */ 323 wait_queue_head_t lock_queue; /* Queue of blocked processes */ 324 unsigned long lock_time; /* Time of last lock in jiffies */ 325 } drm_lock_data_t; 326 327 typedef struct drm_device_dma { 328 #if 0 329 /* Performance Counters */ 330 atomic_t total_prio; /* Total DRM_DMA_PRIORITY */ 331 atomic_t total_bytes; /* Total bytes DMA'd */ 332 atomic_t total_dmas; /* Total DMA buffers dispatched */ 333 334 atomic_t total_missed_dma; /* Missed drm_do_dma */ 335 atomic_t total_missed_lock; /* Missed lock in drm_do_dma */ 336 atomic_t total_missed_free; /* Missed drm_free_this_buffer */ 337 atomic_t total_missed_sched;/* Missed drm_dma_schedule */ 338 339 atomic_t total_tried; /* Tried next_buffer */ 340 atomic_t total_hit; /* Sent next_buffer */ 341 atomic_t total_lost; /* Lost interrupt */ 342 #endif 343 344 drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; 345 int buf_count; 346 drm_buf_t **buflist; /* Vector of pointers info bufs */ 347 int seg_count; 348 int page_count; 349 unsigned long *pagelist; 350 unsigned long byte_count; 351 enum { 352 _DRM_DMA_USE_AGP = 0x01, 353 _DRM_DMA_USE_SG = 0x02 354 } flags; 355 356 /* DMA support */ 357 drm_buf_t *this_buffer; /* Buffer being sent */ 358 drm_buf_t *next_buffer; /* Selected buffer to send */ 359 drm_queue_t *next_queue; /* Queue from which buffer selected*/ 360 wait_queue_head_t waiting; /* Processes waiting on free bufs */ 361 } drm_device_dma_t; 362 363 #if __REALLY_HAVE_AGP 364 typedef struct drm_agp_mem { 365 #ifdef __linux__ 366 unsigned long handle; 367 agp_memory *memory; 368 #endif /* __linux__ */ 369 #ifdef __FreeBSD__ 370 void *handle; 371 #endif /* __FreeBSD__ */ 372 unsigned long bound; /* address */ 373 int pages; 374 struct drm_agp_mem *prev; 375 struct drm_agp_mem *next; 376 } drm_agp_mem_t; 377 378 typedef struct drm_agp_head { 379 #ifdef __linux__ 380 agp_kern_info agp_info; 381 #endif /* __linux__ */ 382 #ifdef __FreeBSD__ 383 device_t agpdev; 384 struct agp_info info; 385 #endif /* __FreeBSD__ */ 386 const char *chipset; 387 drm_agp_mem_t *memory; 388 unsigned long mode; 389 int enabled; 390 int acquired; 391 unsigned long base; 392 int agp_mtrr; 393 int cant_use_aperture; 394 unsigned long page_mask; 395 } drm_agp_head_t; 396 #endif 397 398 typedef struct drm_sg_mem { 399 unsigned long handle; 400 void *virtual; 401 int pages; 402 struct page **pagelist; 403 #ifdef __linux__ 404 dma_addr_t *busaddr; 405 #endif /* __linux__ */ 406 } drm_sg_mem_t; 407 408 typedef struct drm_sigdata { 409 int context; 410 drm_hw_lock_t *lock; 411 } drm_sigdata_t; 412 413 #ifdef __linux__ 414 typedef struct drm_map_list { 415 struct list_head head; 416 drm_map_t *map; 417 } drm_map_list_t; 418 #endif /* __linux__ */ 419 #ifdef __FreeBSD__ 420 typedef TAILQ_HEAD(drm_map_list, drm_map_list_entry) drm_map_list_t; 421 typedef struct drm_map_list_entry { 422 TAILQ_ENTRY(drm_map_list_entry) link; 423 drm_map_t *map; 424 } drm_map_list_entry_t; 425 #endif /* __FreeBSD__ */ 426 427 struct drm_device { 428 const char *name; /* Simple driver name */ 429 char *unique; /* Unique identifier: e.g., busid */ 430 int unique_len; /* Length of unique field */ 431 #ifdef __linux__ 432 dev_t device; /* Device number for mknod */ 433 #endif /* __linux__ */ 434 #ifdef __FreeBSD__ 435 device_t device; /* Device instance from newbus */ 436 dev_t devnode; /* Device number for mknod */ 437 #endif /* __FreeBSD__ */ 438 char *devname; /* For /proc/interrupts */ 439 440 int blocked; /* Blocked due to VC switch? */ 441 #ifdef __FreeBSD__ 442 int flags; /* Flags to open(2) */ 443 int writable; /* Opened with FWRITE */ 444 #endif /* __FreeBSD__ */ 445 #ifdef __linux__ 446 struct proc_dir_entry *root; /* Root for this device's entries */ 447 #endif /* __linux__ */ 448 449 /* Locks */ 450 DRM_OS_SPINTYPE count_lock; /* For inuse, open_count, buf_use */ 451 #ifdef __linux__ 452 struct semaphore struct_sem; /* For others */ 453 #endif /* __linux__ */ 454 #ifdef __FreeBSD__ 455 struct lock dev_lock; /* For others */ 456 #endif /* __FreeBSD__ */ 457 458 /* Usage Counters */ 459 int open_count; /* Outstanding files open */ 460 atomic_t ioctl_count; /* Outstanding IOCTLs pending */ 461 atomic_t vma_count; /* Outstanding vma areas open */ 462 int buf_use; /* Buffers in use -- cannot alloc */ 463 atomic_t buf_alloc; /* Buffer allocation in progress */ 464 465 /* Performance counters */ 466 unsigned long counters; 467 drm_stat_type_t types[15]; 468 atomic_t counts[15]; 469 470 /* Authentication */ 471 #ifdef __linux__ 472 drm_file_t *file_first; 473 drm_file_t *file_last; 474 #endif /* __linux__ */ 475 #ifdef __FreeBSD__ 476 drm_file_list_t files; 477 #endif /* __FreeBSD__ */ 478 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 479 480 /* Memory management */ 481 drm_map_list_t *maplist; /* Linked list of regions */ 482 int map_count; /* Number of mappable regions */ 483 484 drm_map_t **context_sareas; 485 int max_context; 486 487 drm_vma_entry_t *vmalist; /* List of vmas (for debugging) */ 488 drm_lock_data_t lock; /* Information on hardware lock */ 489 490 /* DMA queues (contexts) */ 491 int queue_count; /* Number of active DMA queues */ 492 int queue_reserved; /* Number of reserved DMA queues */ 493 int queue_slots; /* Actual length of queuelist */ 494 drm_queue_t **queuelist; /* Vector of pointers to DMA queues */ 495 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 496 497 /* Context support */ 498 int irq; /* Interrupt used by board */ 499 #ifdef __FreeBSD__ 500 struct resource *irqr; /* Resource for interrupt used by board */ 501 void *irqh; /* Handle from bus_setup_intr */ 502 #endif /* __FreeBSD__ */ 503 __volatile__ long context_flag; /* Context swapping flag */ 504 __volatile__ long interrupt_flag; /* Interruption handler flag */ 505 __volatile__ long dma_flag; /* DMA dispatch flag */ 506 #ifdef __linux__ 507 struct timer_list timer; /* Timer for delaying ctx switch */ 508 #endif /* __linux__ */ 509 #ifdef __FreeBSD__ 510 struct callout timer; /* Timer for delaying ctx switch */ 511 #endif /* __FreeBSD__ */ 512 wait_queue_head_t context_wait; /* Processes waiting on ctx switch */ 513 int last_checked; /* Last context checked for DMA */ 514 int last_context; /* Last current context */ 515 unsigned long last_switch; /* jiffies at last context switch */ 516 #ifdef __linux__ 517 struct tq_struct tq; 518 #endif /* __linux__ */ 519 #ifdef __FreeBSD__ 520 #if __FreeBSD_version >= 400005 521 struct task task; 522 #endif 523 #endif /* __FreeBSD__ */ 524 cycles_t ctx_start; 525 cycles_t lck_start; 526 #if __HAVE_DMA_HISTOGRAM 527 drm_histogram_t histo; 528 #endif 529 530 /* Callback to X server for context switch 531 and for heavy-handed reset. */ 532 char buf[DRM_BSZ]; /* Output buffer */ 533 char *buf_rp; /* Read pointer */ 534 char *buf_wp; /* Write pointer */ 535 char *buf_end; /* End pointer */ 536 #ifdef __linux__ 537 struct fasync_struct *buf_async;/* Processes waiting for SIGIO */ 538 #endif /* __linux__ */ 539 #ifdef __FreeBSD__ 540 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 541 struct selinfo buf_sel; /* Workspace for select/poll */ 542 int buf_selecting;/* True if poll sleeper */ 543 #endif /* __FreeBSD__ */ 544 wait_queue_head_t buf_readers; /* Processes waiting to read */ 545 wait_queue_head_t buf_writers; /* Processes waiting to ctx switch */ 546 547 #ifdef __FreeBSD__ 548 /* Sysctl support */ 549 struct drm_sysctl_info *sysctl; 550 #endif /* __FreeBSD__ */ 551 552 #if __REALLY_HAVE_AGP 553 drm_agp_head_t *agp; 554 #endif 555 struct pci_dev *pdev; 556 #ifdef __alpha__ 557 #if LINUX_VERSION_CODE < 0x020403 558 struct pci_controler *hose; 559 #else 560 struct pci_controller *hose; 561 #endif 562 #endif 563 drm_sg_mem_t *sg; /* Scatter gather memory */ 564 unsigned long *ctx_bitmap; 565 void *dev_private; 566 drm_sigdata_t sigdata; /* For block_all_signals */ 567 sigset_t sigmask; 568 }; 569 570 /* ================================================================ 571 * Internal function definitions 572 */ 573 574 extern int DRM(flags); 575 extern void DRM(parse_options)( char *s ); 576 extern int DRM(cpu_valid)( void ); 577 578 /* Driver support (drm_drv.h) */ 579 extern int DRM(version)( DRM_OS_IOCTL ); 580 extern int DRM(ioctl)( DRM_OS_IOCTL ); 581 extern int DRM(lock)( DRM_OS_IOCTL ); 582 extern int DRM(unlock)( DRM_OS_IOCTL ); 583 extern int DRM(write_string)(drm_device_t *dev, const char *s); 584 585 /* Memory management support (drm_memory.h) */ 586 extern void DRM(mem_init)(void); 587 extern void *DRM(alloc)(size_t size, int area); 588 extern void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size, 589 int area); 590 extern char *DRM(strdup)(const char *s, int area); 591 extern void DRM(strfree)(char *s, int area); 592 extern void DRM(free)(void *pt, size_t size, int area); 593 extern unsigned long DRM(alloc_pages)(int order, int area); 594 extern void DRM(free_pages)(unsigned long address, int order, 595 int area); 596 extern void *DRM(ioremap)(unsigned long offset, unsigned long size); 597 extern void DRM(ioremapfree)(void *pt, unsigned long size); 598 599 #if __REALLY_HAVE_AGP 600 extern agp_memory *DRM(alloc_agp)(int pages, u32 type); 601 extern int DRM(free_agp)(agp_memory *handle, int pages); 602 extern int DRM(bind_agp)(agp_memory *handle, unsigned int start); 603 extern int DRM(unbind_agp)(agp_memory *handle); 604 #endif 605 606 /* Misc. IOCTL support (drm_ioctl.h) */ 607 extern int DRM(irq_busid)( DRM_OS_IOCTL ); 608 extern int DRM(getunique)( DRM_OS_IOCTL ); 609 extern int DRM(setunique)( DRM_OS_IOCTL ); 610 extern int DRM(getmap)( DRM_OS_IOCTL ); 611 extern int DRM(getclient)( DRM_OS_IOCTL ); 612 extern int DRM(getstats)( DRM_OS_IOCTL ); 613 614 /* Context IOCTL support (drm_context.h) */ 615 extern int DRM(resctx)( DRM_OS_IOCTL ); 616 extern int DRM(addctx)( DRM_OS_IOCTL ); 617 extern int DRM(modctx)( DRM_OS_IOCTL ); 618 extern int DRM(getctx)( DRM_OS_IOCTL ); 619 extern int DRM(switchctx)( DRM_OS_IOCTL ); 620 extern int DRM(newctx)( DRM_OS_IOCTL ); 621 extern int DRM(rmctx)( DRM_OS_IOCTL ); 622 623 extern int DRM(context_switch)(drm_device_t *dev, int old, int new); 624 extern int DRM(context_switch_complete)(drm_device_t *dev, int new); 625 626 #if __HAVE_CTX_BITMAP 627 extern int DRM(ctxbitmap_init)( drm_device_t *dev ); 628 extern void DRM(ctxbitmap_cleanup)( drm_device_t *dev ); 629 extern void DRM(ctxbitmap_free)( drm_device_t *dev, int ctx_handle ); 630 extern int DRM(ctxbitmap_next)( drm_device_t *dev ); 631 #endif 632 633 extern int DRM(setsareactx)( DRM_OS_IOCTL ); 634 extern int DRM(getsareactx)( DRM_OS_IOCTL ); 635 636 /* Drawable IOCTL support (drm_drawable.h) */ 637 extern int DRM(adddraw)( DRM_OS_IOCTL ); 638 extern int DRM(rmdraw)( DRM_OS_IOCTL ); 639 640 /* Authentication IOCTL support (drm_auth.h) */ 641 extern int DRM(add_magic)(drm_device_t *dev, drm_file_t *priv, 642 drm_magic_t magic); 643 extern int DRM(remove_magic)(drm_device_t *dev, drm_magic_t magic); 644 extern int DRM(getmagic)( DRM_OS_IOCTL ); 645 extern int DRM(authmagic)( DRM_OS_IOCTL ); 646 647 /* Locking IOCTL support (drm_lock.h) */ 648 extern int DRM(block)( DRM_OS_IOCTL ); 649 extern int DRM(unblock)( DRM_OS_IOCTL ); 650 extern int DRM(finish)( DRM_OS_IOCTL ); 651 extern int DRM(lock_take)(__volatile__ unsigned int *lock, 652 unsigned int context); 653 extern int DRM(lock_transfer)(drm_device_t *dev, 654 __volatile__ unsigned int *lock, 655 unsigned int context); 656 extern int DRM(lock_free)(drm_device_t *dev, 657 __volatile__ unsigned int *lock, 658 unsigned int context); 659 extern int DRM(flush_unblock)(drm_device_t *dev, int context, 660 drm_lock_flags_t flags); 661 extern int DRM(flush_block_and_flush)(drm_device_t *dev, int context, 662 drm_lock_flags_t flags); 663 extern int DRM(notifier)(void *priv); 664 665 /* Buffer management support (drm_bufs.h) */ 666 extern int DRM(order)( unsigned long size ); 667 extern int DRM(addmap)( DRM_OS_IOCTL ); 668 extern int DRM(rmmap)( DRM_OS_IOCTL ); 669 670 #if __HAVE_DMA 671 extern int DRM(addbufs)( DRM_OS_IOCTL ); 672 extern int DRM(infobufs)( DRM_OS_IOCTL ); 673 extern int DRM(markbufs)( DRM_OS_IOCTL ); 674 extern int DRM(freebufs)( DRM_OS_IOCTL ); 675 extern int DRM(mapbufs)( DRM_OS_IOCTL ); 676 extern int DRM(control)( DRM_OS_IOCTL ); 677 678 /* DMA support (drm_dma.h) */ 679 extern int DRM(dma_setup)(drm_device_t *dev); 680 extern void DRM(dma_takedown)(drm_device_t *dev); 681 extern void DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf); 682 extern void DRM(reclaim_buffers)(drm_device_t *dev, pid_t pid); 683 #if __HAVE_OLD_DMA 684 /* GH: This is a dirty hack for now... 685 */ 686 extern void DRM(clear_next_buffer)(drm_device_t *dev); 687 extern int DRM(select_queue)(drm_device_t *dev, 688 void (*wrapper)(unsigned long)); 689 extern int DRM(dma_enqueue)(drm_device_t *dev, drm_dma_t *dma); 690 extern int DRM(dma_get_buffers)(drm_device_t *dev, drm_dma_t *dma); 691 #endif 692 #if __HAVE_DMA_IRQ 693 extern int DRM(irq_install)( drm_device_t *dev, int irq ); 694 extern int DRM(irq_uninstall)( drm_device_t *dev ); 695 extern void DRM(dma_service)( DRM_OS_IRQ_ARGS ); 696 #if __HAVE_DMA_IRQ_BH 697 extern void DRM(dma_immediate_bh)( DRM_OS_TASKQUEUE_ARGS ); 698 #endif 699 #endif 700 #if DRM_DMA_HISTOGRAM 701 extern int DRM(histogram_slot)(unsigned long count); 702 extern void DRM(histogram_compute)(drm_device_t *dev, drm_buf_t *buf); 703 #endif 704 705 /* Buffer list support (drm_lists.h) */ 706 #if __HAVE_DMA_WAITLIST 707 extern int DRM(waitlist_create)(drm_waitlist_t *bl, int count); 708 extern int DRM(waitlist_destroy)(drm_waitlist_t *bl); 709 extern int DRM(waitlist_put)(drm_waitlist_t *bl, drm_buf_t *buf); 710 extern drm_buf_t *DRM(waitlist_get)(drm_waitlist_t *bl); 711 #endif 712 #if __HAVE_DMA_FREELIST 713 extern int DRM(freelist_create)(drm_freelist_t *bl, int count); 714 extern int DRM(freelist_destroy)(drm_freelist_t *bl); 715 extern int DRM(freelist_put)(drm_device_t *dev, drm_freelist_t *bl, 716 drm_buf_t *buf); 717 extern drm_buf_t *DRM(freelist_get)(drm_freelist_t *bl, int block); 718 #endif 719 #endif /* __HAVE_DMA */ 720 721 #if __REALLY_HAVE_AGP 722 /* AGP/GART support (drm_agpsupport.h) */ 723 extern int DRM(agp_acquire)( DRM_OS_IOCTL ); 724 extern int DRM(agp_release)( DRM_OS_IOCTL ); 725 extern int DRM(agp_enable)( DRM_OS_IOCTL ); 726 extern int DRM(agp_info)( DRM_OS_IOCTL ); 727 extern int DRM(agp_alloc)( DRM_OS_IOCTL ); 728 extern int DRM(agp_free)( DRM_OS_IOCTL ); 729 extern int DRM(agp_unbind)( DRM_OS_IOCTL ); 730 extern int DRM(agp_bind)( DRM_OS_IOCTL ); 731 extern drm_agp_head_t *DRM(agp_init)(void); 732 extern void DRM(agp_uninit)(void); 733 extern void DRM(agp_do_release)(void); 734 extern agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type); 735 extern int DRM(agp_free_memory)(agp_memory *handle); 736 extern int DRM(agp_bind_memory)(agp_memory *handle, off_t start); 737 extern int DRM(agp_unbind_memory)(agp_memory *handle); 738 #endif 739 740 #if __HAVE_SG 741 /* Scatter Gather Support (drm_scatter.h) */ 742 extern void DRM(sg_cleanup)(drm_sg_mem_t *entry); 743 extern int DRM(sg_alloc)( DRM_OS_IOCTL ); 744 extern int DRM(sg_free)( DRM_OS_IOCTL ); 745 #endif 746 747 #if __REALLY_HAVE_SG 748 /* ATI PCIGART support (ati_pcigart.h) */ 749 extern int DRM(ati_pcigart_init)(drm_device_t *dev, 750 unsigned long *addr, 751 dma_addr_t *bus_addr); 752 extern int DRM(ati_pcigart_cleanup)(drm_device_t *dev, 753 unsigned long addr, 754 dma_addr_t bus_addr); 755 #endif 756 757 #endif /* __KERNEL__ */ 758 #endif
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