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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 | /* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*- * Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com * * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Authors: * Rickard E. (Rik) Faith <faith@valinux.com> * */ #ifndef _DRM_P_H_ #define _DRM_P_H_ #ifdef __KERNEL__ #ifdef __alpha__ /* add include of current.h so that "current" is defined * before static inline funcs in wait.h. Doing this so we * can build the DRM (part of PI DRI). 4/21/2000 S + B */ #include <asm/current.h> #endif /* __alpha__ */ #include <linux/config.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/miscdevice.h> #include <linux/major.h> #include <linux/fs.h> #include <linux/proc_fs.h> #include <linux/init.h> #include <linux/file.h> #include <linux/pci.h> #include <linux/wrapper.h> #include <linux/version.h> #include <linux/sched.h> #include <linux/smp_lock.h> /* For (un)lock_kernel */ #include <linux/mm.h> #ifdef __alpha__ #include <asm/pgtable.h> /* For pte_wrprotect */ #endif #include <asm/io.h> #include <asm/mman.h> #include <asm/uaccess.h> #ifdef CONFIG_MTRR #include <asm/mtrr.h> #endif #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) #include <linux/types.h> #include <linux/agp_backend.h> #endif #if LINUX_VERSION_CODE >= 0x020100 /* KERNEL_VERSION(2,1,0) */ #include <linux/tqueue.h> #include <linux/poll.h> #endif #if LINUX_VERSION_CODE < 0x020400 #include "compat-pre24.h" #endif #include "drm.h" #define DRM_DEBUG_CODE 2 /* Include debugging code (if > 1, then also include looping detection. */ #define DRM_DMA_HISTOGRAM 1 /* Make histogram of DMA latency. */ #define DRM_HASH_SIZE 16 /* Size of key hash table */ #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ #define DRM_LOOPING_LIMIT 5000000 #define DRM_BSZ 1024 /* Buffer size for /dev/drm? output */ #define DRM_TIME_SLICE (HZ/20) /* Time slice for GLXContexts */ #define DRM_LOCK_SLICE 1 /* Time slice for lock, in jiffies */ #define DRM_FLAG_DEBUG 0x01 #define DRM_FLAG_NOCTX 0x02 #define DRM_MEM_DMA 0 #define DRM_MEM_SAREA 1 #define DRM_MEM_DRIVER 2 #define DRM_MEM_MAGIC 3 #define DRM_MEM_IOCTLS 4 #define DRM_MEM_MAPS 5 #define DRM_MEM_VMAS 6 #define DRM_MEM_BUFS 7 #define DRM_MEM_SEGS 8 #define DRM_MEM_PAGES 9 #define DRM_MEM_FILES 10 #define DRM_MEM_QUEUES 11 #define DRM_MEM_CMDS 12 #define DRM_MEM_MAPPINGS 13 #define DRM_MEM_BUFLISTS 14 #define DRM_MEM_AGPLISTS 15 #define DRM_MEM_TOTALAGP 16 #define DRM_MEM_BOUNDAGP 17 #define DRM_MEM_CTXBITMAP 18 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) /* Backward compatibility section */ /* _PAGE_WT changed to _PAGE_PWT in 2.2.6 */ #ifndef _PAGE_PWT #define _PAGE_PWT _PAGE_WT #endif /* Wait queue declarations changed in 2.3.1 */ #ifndef DECLARE_WAITQUEUE #define DECLARE_WAITQUEUE(w,c) struct wait_queue w = { c, NULL } typedef struct wait_queue *wait_queue_head_t; #define init_waitqueue_head(q) *q = NULL; #endif /* _PAGE_4M changed to _PAGE_PSE in 2.3.23 */ #ifndef _PAGE_PSE #define _PAGE_PSE _PAGE_4M #endif /* vm_offset changed to vm_pgoff in 2.3.25 */ #if LINUX_VERSION_CODE < 0x020319 #define VM_OFFSET(vma) ((vma)->vm_offset) #else #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT) #endif /* *_nopage return values defined in 2.3.26 */ #ifndef NOPAGE_SIGBUS #define NOPAGE_SIGBUS 0 #endif #ifndef NOPAGE_OOM #define NOPAGE_OOM 0 #endif /* module_init/module_exit added in 2.3.13 */ #ifndef module_init #define module_init(x) int init_module(void) { return x(); } #endif #ifndef module_exit #define module_exit(x) void cleanup_module(void) { x(); } #endif /* Generic cmpxchg added in 2.3.x */ #ifndef __HAVE_ARCH_CMPXCHG /* Include this here so that driver can be used with older kernels. */ #if defined(__alpha__) static __inline__ unsigned long __cmpxchg_u32(volatile int *m, int old, int new) { unsigned long prev, cmp; __asm__ __volatile__( "1: ldl_l %0,%2\n" " cmpeq %0,%3,%1\n" " beq %1,2f\n" " mov %4,%1\n" " stl_c %1,%2\n" " beq %1,3f\n" "2: mb\n" ".subsection 2\n" "3: br 1b\n" ".previous" : "=&r"(prev), "=&r"(cmp), "=m"(*m) : "r"((long) old), "r"(new), "m"(*m)); return prev; } static __inline__ unsigned long __cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new) { unsigned long prev, cmp; __asm__ __volatile__( "1: ldq_l %0,%2\n" " cmpeq %0,%3,%1\n" " beq %1,2f\n" " mov %4,%1\n" " stq_c %1,%2\n" " beq %1,3f\n" "2: mb\n" ".subsection 2\n" "3: br 1b\n" ".previous" : "=&r"(prev), "=&r"(cmp), "=m"(*m) : "r"((long) old), "r"(new), "m"(*m)); return prev; } static __inline__ unsigned long __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) { switch (size) { case 4: return __cmpxchg_u32(ptr, old, new); case 8: return __cmpxchg_u64(ptr, old, new); } return old; } #define cmpxchg(ptr,o,n) \ ({ \ __typeof__(*(ptr)) _o_ = (o); \ __typeof__(*(ptr)) _n_ = (n); \ (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ (unsigned long)_n_, sizeof(*(ptr))); \ }) #elif __i386__ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) { unsigned long prev; switch (size) { case 1: __asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2" : "=a"(prev) : "q"(new), "m"(*__xg(ptr)), "0"(old) : "memory"); return prev; case 2: __asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2" : "=a"(prev) : "q"(new), "m"(*__xg(ptr)), "0"(old) : "memory"); return prev; case 4: __asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2" : "=a"(prev) : "q"(new), "m"(*__xg(ptr)), "0"(old) : "memory"); return prev; } return old; } #define cmpxchg(ptr,o,n) \ ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o), \ (unsigned long)(n),sizeof(*(ptr)))) #endif /* i386 & alpha */ #endif /* Macros to make printk easier */ #define DRM_ERROR(fmt, arg...) \ printk(KERN_ERR "[" DRM_NAME ":" __FUNCTION__ "] *ERROR* " fmt , ##arg) #define DRM_MEM_ERROR(area, fmt, arg...) \ printk(KERN_ERR "[" DRM_NAME ":" __FUNCTION__ ":%s] *ERROR* " fmt , \ drm_mem_stats[area].name , ##arg) #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg) #if DRM_DEBUG_CODE #define DRM_DEBUG(fmt, arg...) \ do { \ if (drm_flags&DRM_FLAG_DEBUG) \ printk(KERN_DEBUG \ "[" DRM_NAME ":" __FUNCTION__ "] " fmt , \ ##arg); \ } while (0) #else #define DRM_DEBUG(fmt, arg...) do { } while (0) #endif #define DRM_PROC_LIMIT (PAGE_SIZE-80) #define DRM_PROC_PRINT(fmt, arg...) \ len += sprintf(&buf[len], fmt , ##arg); \ if (len > DRM_PROC_LIMIT) return len; #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \ len += sprintf(&buf[len], fmt , ##arg); \ if (len > DRM_PROC_LIMIT) { ret; return len; } /* Internal types and structures */ #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1)) #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x)) #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist) typedef int drm_ioctl_t(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); typedef struct drm_ioctl_desc { drm_ioctl_t *func; int auth_needed; int root_only; } drm_ioctl_desc_t; typedef struct drm_devstate { pid_t owner; /* X server pid holding x_lock */ } drm_devstate_t; typedef struct drm_magic_entry { drm_magic_t magic; struct drm_file *priv; struct drm_magic_entry *next; } drm_magic_entry_t; typedef struct drm_magic_head { struct drm_magic_entry *head; struct drm_magic_entry *tail; } drm_magic_head_t; typedef struct drm_vma_entry { struct vm_area_struct *vma; struct drm_vma_entry *next; pid_t pid; } drm_vma_entry_t; typedef struct drm_buf { int idx; /* Index into master buflist */ int total; /* Buffer size */ int order; /* log-base-2(total) */ int used; /* Amount of buffer in use (for DMA) */ unsigned long offset; /* Byte offset (used internally) */ void *address; /* Address of buffer */ unsigned long bus_address; /* Bus address of buffer */ struct drm_buf *next; /* Kernel-only: used for free list */ __volatile__ int waiting; /* On kernel DMA queue */ __volatile__ int pending; /* On hardware DMA queue */ wait_queue_head_t dma_wait; /* Processes waiting */ pid_t pid; /* PID of holding process */ int context; /* Kernel queue for this buffer */ int while_locked;/* Dispatch this buffer while locked */ enum { DRM_LIST_NONE = 0, DRM_LIST_FREE = 1, DRM_LIST_WAIT = 2, DRM_LIST_PEND = 3, DRM_LIST_PRIO = 4, DRM_LIST_RECLAIM = 5 } list; /* Which list we're on */ #if DRM_DMA_HISTOGRAM cycles_t time_queued; /* Queued to kernel DMA queue */ cycles_t time_dispatched; /* Dispatched to hardware */ cycles_t time_completed; /* Completed by hardware */ cycles_t time_freed; /* Back on freelist */ #endif int dev_priv_size; /* Size of buffer private stoarge */ void *dev_private; /* Per-buffer private storage */ } drm_buf_t; #if DRM_DMA_HISTOGRAM #define DRM_DMA_HISTOGRAM_SLOTS 9 #define DRM_DMA_HISTOGRAM_INITIAL 10 #define DRM_DMA_HISTOGRAM_NEXT(current) ((current)*10) typedef struct drm_histogram { atomic_t total; atomic_t queued_to_dispatched[DRM_DMA_HISTOGRAM_SLOTS]; atomic_t dispatched_to_completed[DRM_DMA_HISTOGRAM_SLOTS]; atomic_t completed_to_freed[DRM_DMA_HISTOGRAM_SLOTS]; atomic_t queued_to_completed[DRM_DMA_HISTOGRAM_SLOTS]; atomic_t queued_to_freed[DRM_DMA_HISTOGRAM_SLOTS]; atomic_t dma[DRM_DMA_HISTOGRAM_SLOTS]; atomic_t schedule[DRM_DMA_HISTOGRAM_SLOTS]; atomic_t ctx[DRM_DMA_HISTOGRAM_SLOTS]; atomic_t lacq[DRM_DMA_HISTOGRAM_SLOTS]; atomic_t lhld[DRM_DMA_HISTOGRAM_SLOTS]; } drm_histogram_t; #endif /* bufs is one longer than it has to be */ typedef struct drm_waitlist { int count; /* Number of possible buffers */ drm_buf_t **bufs; /* List of pointers to buffers */ drm_buf_t **rp; /* Read pointer */ drm_buf_t **wp; /* Write pointer */ drm_buf_t **end; /* End pointer */ spinlock_t read_lock; spinlock_t write_lock; } drm_waitlist_t; typedef struct drm_freelist { int initialized; /* Freelist in use */ atomic_t count; /* Number of free buffers */ drm_buf_t *next; /* End pointer */ wait_queue_head_t waiting; /* Processes waiting on free bufs */ int low_mark; /* Low water mark */ int high_mark; /* High water mark */ atomic_t wfh; /* If waiting for high mark */ spinlock_t lock; } drm_freelist_t; typedef struct drm_buf_entry { int buf_size; int buf_count; drm_buf_t *buflist; int seg_count; int page_order; unsigned long *seglist; drm_freelist_t freelist; } drm_buf_entry_t; typedef struct drm_hw_lock { __volatile__ unsigned int lock; char padding[60]; /* Pad to cache line */ } drm_hw_lock_t; typedef struct drm_file { int authenticated; int minor; pid_t pid; uid_t uid; drm_magic_t magic; unsigned long ioctl_count; struct drm_file *next; struct drm_file *prev; struct drm_device *dev; int remove_auth_on_close; } drm_file_t; typedef struct drm_queue { atomic_t use_count; /* Outstanding uses (+1) */ atomic_t finalization; /* Finalization in progress */ atomic_t block_count; /* Count of processes waiting */ atomic_t block_read; /* Queue blocked for reads */ wait_queue_head_t read_queue; /* Processes waiting on block_read */ atomic_t block_write; /* Queue blocked for writes */ wait_queue_head_t write_queue; /* Processes waiting on block_write */ atomic_t total_queued; /* Total queued statistic */ atomic_t total_flushed;/* Total flushes statistic */ atomic_t total_locks; /* Total locks statistics */ drm_ctx_flags_t flags; /* Context preserving and 2D-only */ drm_waitlist_t waitlist; /* Pending buffers */ wait_queue_head_t flush_queue; /* Processes waiting until flush */ } drm_queue_t; typedef struct drm_lock_data { drm_hw_lock_t *hw_lock; /* Hardware lock */ pid_t pid; /* PID of lock holder (0=kernel) */ wait_queue_head_t lock_queue; /* Queue of blocked processes */ unsigned long lock_time; /* Time of last lock in jiffies */ } drm_lock_data_t; typedef struct drm_device_dma { /* Performance Counters */ atomic_t total_prio; /* Total DRM_DMA_PRIORITY */ atomic_t total_bytes; /* Total bytes DMA'd */ atomic_t total_dmas; /* Total DMA buffers dispatched */ atomic_t total_missed_dma; /* Missed drm_do_dma */ atomic_t total_missed_lock; /* Missed lock in drm_do_dma */ atomic_t total_missed_free; /* Missed drm_free_this_buffer */ atomic_t total_missed_sched;/* Missed drm_dma_schedule */ atomic_t total_tried; /* Tried next_buffer */ atomic_t total_hit; /* Sent next_buffer */ atomic_t total_lost; /* Lost interrupt */ drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; int buf_count; drm_buf_t **buflist; /* Vector of pointers info bufs */ int seg_count; int page_count; unsigned long *pagelist; unsigned long byte_count; enum { _DRM_DMA_USE_AGP = 0x01 } flags; /* DMA support */ drm_buf_t *this_buffer; /* Buffer being sent */ drm_buf_t *next_buffer; /* Selected buffer to send */ drm_queue_t *next_queue; /* Queue from which buffer selected*/ wait_queue_head_t waiting; /* Processes waiting on free bufs */ } drm_device_dma_t; #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) typedef struct drm_agp_mem { unsigned long handle; agp_memory *memory; unsigned long bound; /* address */ int pages; struct drm_agp_mem *prev; struct drm_agp_mem *next; } drm_agp_mem_t; typedef struct drm_agp_head { agp_kern_info agp_info; const char *chipset; drm_agp_mem_t *memory; unsigned long mode; int enabled; int acquired; unsigned long base; int agp_mtrr; } drm_agp_head_t; #endif typedef struct drm_sigdata { int context; drm_hw_lock_t *lock; } drm_sigdata_t; typedef struct drm_device { const char *name; /* Simple driver name */ char *unique; /* Unique identifier: e.g., busid */ int unique_len; /* Length of unique field */ dev_t device; /* Device number for mknod */ char *devname; /* For /proc/interrupts */ int blocked; /* Blocked due to VC switch? */ struct proc_dir_entry *root; /* Root for this device's entries */ /* Locks */ spinlock_t count_lock; /* For inuse, open_count, buf_use */ struct semaphore struct_sem; /* For others */ /* Usage Counters */ int open_count; /* Outstanding files open */ atomic_t ioctl_count; /* Outstanding IOCTLs pending */ atomic_t vma_count; /* Outstanding vma areas open */ int buf_use; /* Buffers in use -- cannot alloc */ atomic_t buf_alloc; /* Buffer allocation in progress */ /* Performance Counters */ atomic_t total_open; atomic_t total_close; atomic_t total_ioctl; atomic_t total_irq; /* Total interruptions */ atomic_t total_ctx; /* Total context switches */ atomic_t total_locks; atomic_t total_unlocks; atomic_t total_contends; atomic_t total_sleeps; /* Authentication */ drm_file_t *file_first; drm_file_t *file_last; drm_magic_head_t magiclist[DRM_HASH_SIZE]; /* Memory management */ drm_map_t **maplist; /* Vector of pointers to regions */ int map_count; /* Number of mappable regions */ drm_vma_entry_t *vmalist; /* List of vmas (for debugging) */ drm_lock_data_t lock; /* Information on hardware lock */ /* DMA queues (contexts) */ int queue_count; /* Number of active DMA queues */ int queue_reserved; /* Number of reserved DMA queues */ int queue_slots; /* Actual length of queuelist */ drm_queue_t **queuelist; /* Vector of pointers to DMA queues */ drm_device_dma_t *dma; /* Optional pointer for DMA support */ /* Context support */ int irq; /* Interrupt used by board */ __volatile__ long context_flag; /* Context swapping flag */ __volatile__ long interrupt_flag; /* Interruption handler flag */ __volatile__ long dma_flag; /* DMA dispatch flag */ struct timer_list timer; /* Timer for delaying ctx switch */ wait_queue_head_t context_wait; /* Processes waiting on ctx switch */ int last_checked; /* Last context checked for DMA */ int last_context; /* Last current context */ unsigned long last_switch; /* jiffies at last context switch */ struct tq_struct tq; cycles_t ctx_start; cycles_t lck_start; #if DRM_DMA_HISTOGRAM drm_histogram_t histo; #endif /* Callback to X server for context switch and for heavy-handed reset. */ char buf[DRM_BSZ]; /* Output buffer */ char *buf_rp; /* Read pointer */ char *buf_wp; /* Write pointer */ char *buf_end; /* End pointer */ struct fasync_struct *buf_async;/* Processes waiting for SIGIO */ wait_queue_head_t buf_readers; /* Processes waiting to read */ wait_queue_head_t buf_writers; /* Processes waiting to ctx switch */ #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) drm_agp_head_t *agp; #endif unsigned long *ctx_bitmap; void *dev_private; drm_sigdata_t sigdata; /* For block_all_signals */ sigset_t sigmask; } drm_device_t; /* Internal function definitions */ /* Misc. support (init.c) */ extern int drm_flags; extern void drm_parse_options(char *s); extern int drm_cpu_valid(void); /* Device support (fops.c) */ extern int drm_open_helper(struct inode *inode, struct file *filp, drm_device_t *dev); extern int drm_flush(struct file *filp); extern int drm_release(struct inode *inode, struct file *filp); extern int drm_fasync(int fd, struct file *filp, int on); extern ssize_t drm_read(struct file *filp, char *buf, size_t count, loff_t *off); extern int drm_write_string(drm_device_t *dev, const char *s); extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); /* Mapping support (vm.c) */ #if LINUX_VERSION_CODE < 0x020317 extern unsigned long drm_vm_nopage(struct vm_area_struct *vma, unsigned long address, int write_access); extern unsigned long drm_vm_shm_nopage(struct vm_area_struct *vma, unsigned long address, int write_access); extern unsigned long drm_vm_shm_nopage_lock(struct vm_area_struct *vma, unsigned long address, int write_access); extern unsigned long drm_vm_dma_nopage(struct vm_area_struct *vma, unsigned long address, int write_access); #else /* Return type changed in 2.3.23 */ extern struct page *drm_vm_nopage(struct vm_area_struct *vma, unsigned long address, int write_access); extern struct page *drm_vm_shm_nopage(struct vm_area_struct *vma, unsigned long address, int write_access); extern struct page *drm_vm_shm_nopage_lock(struct vm_area_struct *vma, unsigned long address, int write_access); extern struct page *drm_vm_dma_nopage(struct vm_area_struct *vma, unsigned long address, int write_access); #endif extern void drm_vm_open(struct vm_area_struct *vma); extern void drm_vm_close(struct vm_area_struct *vma); extern int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma); extern int drm_mmap(struct file *filp, struct vm_area_struct *vma); /* Proc support (proc.c) */ extern int drm_proc_init(drm_device_t *dev); extern int drm_proc_cleanup(void); /* Memory management support (memory.c) */ extern void drm_mem_init(void); extern int drm_mem_info(char *buf, char **start, off_t offset, int len, int *eof, void *data); extern void *drm_alloc(size_t size, int area); extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area); extern char *drm_strdup(const char *s, int area); extern void drm_strfree(const char *s, int area); extern void drm_free(void *pt, size_t size, int area); extern unsigned long drm_alloc_pages(int order, int area); extern void drm_free_pages(unsigned long address, int order, int area); extern void *drm_ioremap(unsigned long offset, unsigned long size); extern void drm_ioremapfree(void *pt, unsigned long size); #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) extern agp_memory *drm_alloc_agp(int pages, u32 type); extern int drm_free_agp(agp_memory *handle, int pages); extern int drm_bind_agp(agp_memory *handle, unsigned int start); extern int drm_unbind_agp(agp_memory *handle); #endif /* Buffer management support (bufs.c) */ extern int drm_order(unsigned long size); extern int drm_addmap(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_addbufs(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_infobufs(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_markbufs(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_freebufs(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_mapbufs(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); /* Buffer list management support (lists.c) */ extern int drm_waitlist_create(drm_waitlist_t *bl, int count); extern int drm_waitlist_destroy(drm_waitlist_t *bl); extern int drm_waitlist_put(drm_waitlist_t *bl, drm_buf_t *buf); extern drm_buf_t *drm_waitlist_get(drm_waitlist_t *bl); extern int drm_freelist_create(drm_freelist_t *bl, int count); extern int drm_freelist_destroy(drm_freelist_t *bl); extern int drm_freelist_put(drm_device_t *dev, drm_freelist_t *bl, drm_buf_t *buf); extern drm_buf_t *drm_freelist_get(drm_freelist_t *bl, int block); /* DMA support (gen_dma.c) */ extern void drm_dma_setup(drm_device_t *dev); extern void drm_dma_takedown(drm_device_t *dev); extern void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf); extern void drm_reclaim_buffers(drm_device_t *dev, pid_t pid); extern int drm_context_switch(drm_device_t *dev, int old, int new); extern int drm_context_switch_complete(drm_device_t *dev, int new); extern void drm_clear_next_buffer(drm_device_t *dev); extern int drm_select_queue(drm_device_t *dev, void (*wrapper)(unsigned long)); extern int drm_dma_enqueue(drm_device_t *dev, drm_dma_t *dma); extern int drm_dma_get_buffers(drm_device_t *dev, drm_dma_t *dma); #if DRM_DMA_HISTOGRAM extern int drm_histogram_slot(unsigned long count); extern void drm_histogram_compute(drm_device_t *dev, drm_buf_t *buf); #endif /* Misc. IOCTL support (ioctl.c) */ extern int drm_irq_busid(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_getunique(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_setunique(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); /* Context IOCTL support (context.c) */ extern int drm_resctx(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_addctx(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_modctx(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_getctx(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_switchctx(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_newctx(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_rmctx(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); /* Drawable IOCTL support (drawable.c) */ extern int drm_adddraw(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_rmdraw(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); /* Authentication IOCTL support (auth.c) */ extern int drm_add_magic(drm_device_t *dev, drm_file_t *priv, drm_magic_t magic); extern int drm_remove_magic(drm_device_t *dev, drm_magic_t magic); extern int drm_getmagic(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_authmagic(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); /* Locking IOCTL support (lock.c) */ extern int drm_block(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_unblock(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context); extern int drm_lock_transfer(drm_device_t *dev, __volatile__ unsigned int *lock, unsigned int context); extern int drm_lock_free(drm_device_t *dev, __volatile__ unsigned int *lock, unsigned int context); extern int drm_finish(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_flush_unblock(drm_device_t *dev, int context, drm_lock_flags_t flags); extern int drm_flush_block_and_flush(drm_device_t *dev, int context, drm_lock_flags_t flags); extern int drm_notifier(void *priv); /* Context Bitmap support (ctxbitmap.c) */ extern int drm_ctxbitmap_init(drm_device_t *dev); extern void drm_ctxbitmap_cleanup(drm_device_t *dev); extern int drm_ctxbitmap_next(drm_device_t *dev); extern void drm_ctxbitmap_free(drm_device_t *dev, int ctx_handle); #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) /* AGP/GART support (agpsupport.c) */ extern drm_agp_head_t *drm_agp_init(void); extern void drm_agp_uninit(void); extern int drm_agp_acquire(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern void _drm_agp_release(void); extern int drm_agp_release(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_agp_enable(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_agp_info(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_agp_alloc(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_agp_free(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_agp_unbind(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_agp_bind(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern agp_memory *drm_agp_allocate_memory(size_t pages, u32 type); extern int drm_agp_free_memory(agp_memory *handle); extern int drm_agp_bind_memory(agp_memory *handle, off_t start); extern int drm_agp_unbind_memory(agp_memory *handle); #endif #endif #endif |