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/*- 5 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 6 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 7 * All rights reserved. 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice (including the next 17 * paragraph) shall be included in all copies or substantial portions of the 18 * Software. 19 * 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 26 * OTHER DEALINGS IN THE SOFTWARE. 27 * 28 * Authors: 29 * Rickard E. (Rik) Faith <faith@valinux.com> 30 * Gareth Hughes <gareth@valinux.com> 31 * 32 */ 33 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD$"); 36 37#ifndef _DRM_P_H_ 38#define _DRM_P_H_ 39 40#if defined(_KERNEL) || defined(__KERNEL__) 41 42struct drm_device; 43struct drm_file; 44 45#include <sys/param.h> 46#include <sys/queue.h> 47#include <sys/malloc.h> 48#include <sys/kernel.h> 49#include <sys/module.h> 50#include <sys/systm.h> 51#include <sys/conf.h> 52#include <sys/sglist.h> 53#include <sys/stat.h> 54#if __FreeBSD_version >= 700000 55#include <sys/priv.h> 56#endif 57#include <sys/proc.h> 58#include <sys/lock.h> 59#include <sys/fcntl.h> 60#include <sys/uio.h> 61#include <sys/filio.h> 62#include <sys/rwlock.h> 63#include <sys/sysctl.h> 64#include <sys/bus.h> 65#include <sys/queue.h> 66#include <sys/signalvar.h> 67#include <sys/poll.h> 68#include <sys/taskqueue.h> 69#include <sys/tree.h> 70#include <vm/vm.h> 71#include <vm/pmap.h> 72#include <vm/vm_extern.h> 73#include <vm/vm_kern.h> 74#include <vm/vm_map.h> 75#include <vm/vm_object.h> 76#include <vm/vm_page.h> 77#include <vm/vm_pager.h> 78#include <vm/vm_param.h> 79#include <vm/vm_phys.h> 80#include <machine/param.h> 81#include <machine/pmap.h> 82#include <machine/bus.h> 83#include <machine/resource.h> 84#if defined(__i386__) || defined(__amd64__) 85#include <machine/specialreg.h> 86#endif 87#include <machine/sysarch.h> 88#include <sys/endian.h> 89#if _BYTE_ORDER == _BIG_ENDIAN 90#define __BIG_ENDIAN 1 91#else 92#define __LITTLE_ENDIAN 1 93#endif 94#include <sys/mman.h> 95#include <sys/rman.h> 96#include <sys/memrange.h> 97#if __FreeBSD_version >= 800004 98#include <dev/agp/agpvar.h> 99#else /* __FreeBSD_version >= 800004 */ 100#include <pci/agpvar.h> 101#endif /* __FreeBSD_version >= 800004 */ 102#include <sys/agpio.h> 103#include <sys/mutex.h> 104#include <dev/pci/pcivar.h> 105#include <dev/pci/pcireg.h> 106#include <sys/selinfo.h> 107#include <sys/bus.h> 108 109#include "dev/drm/drm.h" 110#include "dev/drm/drm_atomic.h" 111#include "dev/drm/drm_internal.h" 112#include "dev/drm/drm_linux_list.h" 113 114#include <opt_drm.h> 115#ifdef DRM_DEBUG 116#undef DRM_DEBUG 117#define DRM_DEBUG_DEFAULT_ON 1 118#endif /* DRM_DEBUG */ 119 120#if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__) 121#include <sys/file.h> 122#include <sys/proc.h> 123#include <machine/../linux/linux.h> 124#include <machine/../linux/linux_proto.h> 125#else 126/* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't 127 * supported on this OS yet. 128 */ 129#undef DRM_LINUX 130#define DRM_LINUX 0 131#endif 132 133/* driver capabilities and requirements mask */ 134#define DRIVER_USE_AGP 0x1 135#define DRIVER_REQUIRE_AGP 0x2 136#define DRIVER_USE_MTRR 0x4 137#define DRIVER_PCI_DMA 0x8 138#define DRIVER_SG 0x10 139#define DRIVER_HAVE_DMA 0x20 140#define DRIVER_HAVE_IRQ 0x40 141#define DRIVER_DMA_QUEUE 0x100 142 143 144#define DRM_HASH_SIZE 16 /* Size of key hash table */ 145#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 146#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 147 148MALLOC_DECLARE(DRM_MEM_DMA); 149MALLOC_DECLARE(DRM_MEM_SAREA); 150MALLOC_DECLARE(DRM_MEM_DRIVER); 151MALLOC_DECLARE(DRM_MEM_MAGIC); 152MALLOC_DECLARE(DRM_MEM_IOCTLS); 153MALLOC_DECLARE(DRM_MEM_MAPS); 154MALLOC_DECLARE(DRM_MEM_BUFS); 155MALLOC_DECLARE(DRM_MEM_SEGS); 156MALLOC_DECLARE(DRM_MEM_PAGES); 157MALLOC_DECLARE(DRM_MEM_FILES); 158MALLOC_DECLARE(DRM_MEM_QUEUES); 159MALLOC_DECLARE(DRM_MEM_CMDS); 160MALLOC_DECLARE(DRM_MEM_MAPPINGS); 161MALLOC_DECLARE(DRM_MEM_BUFLISTS); 162MALLOC_DECLARE(DRM_MEM_AGPLISTS); 163MALLOC_DECLARE(DRM_MEM_CTXBITMAP); 164MALLOC_DECLARE(DRM_MEM_SGLISTS); 165MALLOC_DECLARE(DRM_MEM_DRAWABLE); 166MALLOC_DECLARE(DRM_MEM_MM); 167MALLOC_DECLARE(DRM_MEM_HASHTAB); 168 169SYSCTL_DECL(_hw_drm); 170 171#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 172 173 /* Internal types and structures */ 174#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 175#define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 176#define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 177 178#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 179 180#define __OS_HAS_AGP 1 181 182#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 183#define DRM_DEV_UID 0 184#define DRM_DEV_GID 0 185 186#define wait_queue_head_t atomic_t 187#define DRM_WAKEUP(w) wakeup((void *)w) 188#define DRM_WAKEUP_INT(w) wakeup(w) 189#define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 190 191#define DRM_CURPROC curthread 192#define DRM_STRUCTPROC struct thread 193#define DRM_SPINTYPE struct mtx 194#define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF) 195#define DRM_SPINUNINIT(l) mtx_destroy(l) 196#define DRM_SPINLOCK(l) mtx_lock(l) 197#define DRM_SPINUNLOCK(u) mtx_unlock(u) 198#define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \ 199 mtx_lock(l); \ 200 (void)irqflags; \ 201} while (0) 202#define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u) 203#define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 204#define DRM_CURRENTPID curthread->td_proc->p_pid 205#define DRM_LOCK() mtx_lock(&dev->dev_lock) 206#define DRM_UNLOCK() mtx_unlock(&dev->dev_lock) 207#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 208 209#define DRM_IRQ_ARGS void *arg 210typedef void irqreturn_t; 211#define IRQ_HANDLED /* nothing */ 212#define IRQ_NONE /* nothing */ 213 214#define unlikely(x) __builtin_expect(!!(x), 0) 215#define container_of(ptr, type, member) ({ \ 216 __typeof( ((type *)0)->member ) *__mptr = (ptr); \ 217 (type *)( (char *)__mptr - offsetof(type,member) );}) 218 219enum { 220 DRM_IS_NOT_AGP, 221 DRM_IS_AGP, 222 DRM_MIGHT_BE_AGP 223}; 224#define DRM_AGP_MEM struct agp_memory_info 225 226#define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 227 228#define PAGE_ALIGN(addr) round_page(addr) 229/* DRM_SUSER returns true if the user is superuser */ 230#if __FreeBSD_version >= 700000 231#define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 232#else 233#define DRM_SUSER(p) (suser(p) == 0) 234#endif 235#define DRM_AGP_FIND_DEVICE() agp_find_device() 236#define DRM_MTRR_WC MDF_WRITECOMBINE 237#define jiffies ticks 238 239typedef vm_paddr_t dma_addr_t; 240typedef u_int64_t u64; 241typedef u_int32_t u32; 242typedef u_int16_t u16; 243typedef u_int8_t u8; 244 245/* DRM_READMEMORYBARRIER() prevents reordering of reads. 246 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 247 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 248 */ 249#define DRM_READMEMORYBARRIER() rmb() 250#define DRM_WRITEMEMORYBARRIER() wmb() 251#define DRM_MEMORYBARRIER() mb() 252 253#define DRM_READ8(map, offset) \ 254 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 255 (vm_offset_t)(offset)) 256#define DRM_READ16(map, offset) \ 257 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 258 (vm_offset_t)(offset))) 259#define DRM_READ32(map, offset) \ 260 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 261 (vm_offset_t)(offset))) 262#define DRM_WRITE8(map, offset, val) \ 263 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 264 (vm_offset_t)(offset)) = val 265#define DRM_WRITE16(map, offset, val) \ 266 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 267 (vm_offset_t)(offset)) = htole16(val) 268#define DRM_WRITE32(map, offset, val) \ 269 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 270 (vm_offset_t)(offset)) = htole32(val) 271 272#define DRM_VERIFYAREA_READ( uaddr, size ) \ 273 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 274 275#define DRM_COPY_TO_USER(user, kern, size) \ 276 copyout(kern, user, size) 277#define DRM_COPY_FROM_USER(kern, user, size) \ 278 copyin(user, kern, size) 279#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 280 copyin(arg2, arg1, arg3) 281#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 282 copyout(arg2, arg1, arg3) 283#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 284 ((val) = fuword32(uaddr), 0) 285 286#define cpu_to_le32(x) htole32(x) 287#define le32_to_cpu(x) le32toh(x) 288 289#define DRM_HZ hz 290#define DRM_UDELAY(udelay) DELAY(udelay) 291#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ 292 293#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 294 (_map) = (_dev)->context_sareas[_ctx]; \ 295} while(0) 296 297#define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 298do { \ 299 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 300 dev->lock.file_priv != file_priv) { \ 301 DRM_ERROR("%s called without lock held\n", \ 302 __FUNCTION__); \ 303 return EINVAL; \ 304 } \ 305} while (0) 306 307/* Returns -errno to shared code */ 308#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 309for ( ret = 0 ; !ret && !(condition) ; ) { \ 310 DRM_UNLOCK(); \ 311 mtx_lock(&dev->irq_lock); \ 312 if (!(condition)) \ 313 ret = -mtx_sleep(&(queue), &dev->irq_lock, \ 314 PCATCH, "drmwtq", (timeout)); \ 315 mtx_unlock(&dev->irq_lock); \ 316 DRM_LOCK(); \ 317} 318 319#define DRM_ERROR(fmt, ...) \ 320 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 321 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 322 323#define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 324 325#define DRM_DEBUG(fmt, ...) do { \ 326 if (drm_debug_flag) \ 327 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 328 __func__ , ##__VA_ARGS__); \ 329} while (0) 330 331typedef 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 339struct drm_msi_blacklist_entry 340{ 341 int vendor; 342 int device; 343}; 344 345#define DRM_AUTH 0x1 346#define DRM_MASTER 0x2 347#define DRM_ROOT_ONLY 0x4 348typedef struct drm_ioctl_desc { 349 unsigned long cmd; 350 int (*func)(struct drm_device *dev, void *data, 351 struct drm_file *file_priv); 352 int flags; 353} drm_ioctl_desc_t; 354/** 355 * Creates a driver or general drm_ioctl_desc array entry for the given 356 * ioctl, for use by drm_ioctl(). 357 */ 358#define DRM_IOCTL_DEF(ioctl, func, flags) \ 359 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 360 361typedef struct drm_magic_entry { 362 drm_magic_t magic; 363 struct drm_file *priv; 364 struct drm_magic_entry *next; 365} drm_magic_entry_t; 366 367typedef struct drm_magic_head { 368 struct drm_magic_entry *head; 369 struct drm_magic_entry *tail; 370} drm_magic_head_t; 371 372typedef struct drm_buf { 373 int idx; /* Index into master buflist */ 374 int total; /* Buffer size */ 375 int order; /* log-base-2(total) */ 376 int used; /* Amount of buffer in use (for DMA) */ 377 unsigned long offset; /* Byte offset (used internally) */ 378 void *address; /* Address of buffer */ 379 unsigned long bus_address; /* Bus address of buffer */ 380 struct drm_buf *next; /* Kernel-only: used for free list */ 381 __volatile__ int pending; /* On hardware DMA queue */ 382 struct drm_file *file_priv; /* Unique identifier of holding process */ 383 int context; /* Kernel queue for this buffer */ 384 enum { 385 DRM_LIST_NONE = 0, 386 DRM_LIST_FREE = 1, 387 DRM_LIST_WAIT = 2, 388 DRM_LIST_PEND = 3, 389 DRM_LIST_PRIO = 4, 390 DRM_LIST_RECLAIM = 5 391 } list; /* Which list we're on */ 392 393 int dev_priv_size; /* Size of buffer private stoarge */ 394 void *dev_private; /* Per-buffer private storage */ 395} drm_buf_t; 396 397typedef struct drm_freelist { 398 int initialized; /* Freelist in use */ 399 atomic_t count; /* Number of free buffers */ 400 drm_buf_t *next; /* End pointer */ 401 402 int low_mark; /* Low water mark */ 403 int high_mark; /* High water mark */ 404} drm_freelist_t; 405 406typedef struct drm_dma_handle { 407 void *vaddr; 408 bus_addr_t busaddr; 409 bus_dma_tag_t tag; 410 bus_dmamap_t map; 411} drm_dma_handle_t; 412 413typedef struct drm_buf_entry { 414 int buf_size; 415 int buf_count; 416 drm_buf_t *buflist; 417 int seg_count; 418 drm_dma_handle_t **seglist; 419 int page_order; 420 421 drm_freelist_t freelist; 422} drm_buf_entry_t; 423 424typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 425struct drm_file { 426 TAILQ_ENTRY(drm_file) link; 427 struct drm_device *dev; 428 int authenticated; 429 int master; 430 pid_t pid; 431 uid_t uid; 432 drm_magic_t magic; 433 unsigned long ioctl_count; 434 void *driver_priv; 435}; 436 437typedef struct drm_lock_data { 438 struct drm_hw_lock *hw_lock; /* Hardware lock */ 439 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/ 440 int lock_queue; /* Queue of blocked processes */ 441 unsigned long lock_time; /* Time of last lock in jiffies */ 442} drm_lock_data_t; 443 444/* This structure, in the struct drm_device, is always initialized while the 445 * device 446 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 447 * when set marks that no further bufs may be allocated until device teardown 448 * occurs (when the last open of the device has closed). The high/low 449 * watermarks of bufs are only touched by the X Server, and thus not 450 * concurrently accessed, so no locking is needed. 451 */ 452typedef struct drm_device_dma { 453 drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; 454 int buf_count; 455 drm_buf_t **buflist; /* Vector of pointers info bufs */ 456 int seg_count; 457 int page_count; 458 unsigned long *pagelist; 459 unsigned long byte_count; 460 enum { 461 _DRM_DMA_USE_AGP = 0x01, 462 _DRM_DMA_USE_SG = 0x02 463 } flags; 464} drm_device_dma_t; 465 466typedef struct drm_agp_mem { 467 void *handle; 468 unsigned long bound; /* address */ 469 int pages; 470 struct drm_agp_mem *prev; 471 struct drm_agp_mem *next; 472} drm_agp_mem_t; 473 474typedef struct drm_agp_head { 475 device_t agpdev; 476 struct agp_info info; 477 const char *chipset; 478 drm_agp_mem_t *memory; 479 unsigned long mode; 480 int enabled; 481 int acquired; 482 unsigned long base; 483 int mtrr; 484 int cant_use_aperture; 485 unsigned long page_mask; 486} drm_agp_head_t; 487 488typedef struct drm_sg_mem { 489 vm_offset_t vaddr; 490 vm_paddr_t *busaddr; 491 vm_pindex_t pages; 492} drm_sg_mem_t; 493 494#define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 495#define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 496typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; 497 498typedef struct drm_local_map { 499 unsigned long offset; /* Physical address (0 for SAREA) */ 500 unsigned long size; /* Physical size (bytes) */ 501 enum drm_map_type type; /* Type of memory mapped */ 502 enum drm_map_flags flags; /* Flags */ 503 void *handle; /* User-space: "Handle" to pass to mmap */ 504 /* Kernel-space: kernel-virtual address */ 505 int mtrr; /* Boolean: MTRR used */ 506 /* Private data */ 507 int rid; /* PCI resource ID for bus_space */ 508 void *virtual; /* Kernel-space: kernel-virtual address */ 509 struct resource *bsr; 510 bus_space_tag_t bst; 511 bus_space_handle_t bsh; 512 drm_dma_handle_t *dmah; 513 TAILQ_ENTRY(drm_local_map) link; 514} drm_local_map_t; 515 516struct drm_vblank_info { 517 wait_queue_head_t queue; /* vblank wait queue */ 518 atomic_t count; /* number of VBLANK interrupts */ 519 /* (driver must alloc the right number of counters) */ 520 atomic_t refcount; /* number of users of vblank interrupts */ 521 u32 last; /* protected by dev->vbl_lock, used */ 522 /* for wraparound handling */ 523 int enabled; /* so we don't call enable more than */ 524 /* once per disable */ 525 int inmodeset; /* Display driver is setting mode */ 526}; 527 528/* location of GART table */ 529#define DRM_ATI_GART_MAIN 1 530#define DRM_ATI_GART_FB 2 531 532#define DRM_ATI_GART_PCI 1 533#define DRM_ATI_GART_PCIE 2 534#define DRM_ATI_GART_IGP 3 535 536struct drm_ati_pcigart_info { 537 int gart_table_location; 538 int gart_reg_if; 539 void *addr; 540 dma_addr_t bus_addr; 541 dma_addr_t table_mask; 542 dma_addr_t member_mask; 543 struct drm_dma_handle *table_handle; 544 drm_local_map_t mapping; 545 int table_size; 546 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 547}; 548 549#ifndef DMA_BIT_MASK 550#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 551#endif 552 553#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 554 555struct drm_driver_info { 556 int (*load)(struct drm_device *, unsigned long flags); 557 int (*firstopen)(struct drm_device *); 558 int (*open)(struct drm_device *, struct drm_file *); 559 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 560 void (*postclose)(struct drm_device *, struct drm_file *); 561 void (*lastclose)(struct drm_device *); 562 int (*unload)(struct drm_device *); 563 void (*reclaim_buffers_locked)(struct drm_device *, 564 struct drm_file *file_priv); 565 int (*dma_ioctl)(struct drm_device *dev, void *data, 566 struct drm_file *file_priv); 567 void (*dma_ready)(struct drm_device *); 568 int (*dma_quiescent)(struct drm_device *); 569 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 570 enum drm_lock_flags flags); 571 int (*dma_flush_unblock)(struct drm_device *, int context, 572 enum drm_lock_flags flags); 573 int (*context_ctor)(struct drm_device *dev, int context); 574 int (*context_dtor)(struct drm_device *dev, int context); 575 int (*kernel_context_switch)(struct drm_device *dev, int old, 576 int new); 577 int (*kernel_context_switch_unlock)(struct drm_device *dev); 578 void (*irq_preinstall)(struct drm_device *dev); 579 int (*irq_postinstall)(struct drm_device *dev); 580 void (*irq_uninstall)(struct drm_device *dev); 581 void (*irq_handler)(DRM_IRQ_ARGS); 582 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 583 int (*enable_vblank)(struct drm_device *dev, int crtc); 584 void (*disable_vblank)(struct drm_device *dev, int crtc); 585 586 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 587 588 /** 589 * Called by \c drm_device_is_agp. Typically used to determine if a 590 * card is really attached to AGP or not. 591 * 592 * \param dev DRM device handle 593 * 594 * \returns 595 * One of three values is returned depending on whether or not the 596 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 597 * (return of 1), or may or may not be AGP (return of 2). 598 */ 599 int (*device_is_agp) (struct drm_device * dev); 600 601 drm_ioctl_desc_t *ioctls; 602 int max_ioctl; 603 604 int buf_priv_size; 605 606 int major; 607 int minor; 608 int patchlevel; 609 const char *name; /* Simple driver name */ 610 const char *desc; /* Longer driver name */ 611 const char *date; /* Date of last major changes. */ 612 613 u32 driver_features; 614}; 615 616/* Length for the array of resource pointers for drm_get_resource_*. */ 617#define DRM_MAX_PCI_RESOURCE 6 618 619/** 620 * DRM device functions structure 621 */ 622struct drm_device { 623 struct drm_driver_info *driver; 624 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 625 626 u_int16_t pci_device; /* PCI device id */ 627 u_int16_t pci_vendor; /* PCI vendor id */ 628 629 char *unique; /* Unique identifier: e.g., busid */ 630 int unique_len; /* Length of unique field */ 631 device_t device; /* Device instance from newbus */ 632 struct cdev *devnode; /* Device number for mknod */ 633 int if_version; /* Highest interface version set */ 634 635 int flags; /* Flags to open(2) */ 636 637 /* Locks */ 638 struct mtx vbl_lock; /* protects vblank operations */ 639 struct mtx dma_lock; /* protects dev->dma */ 640 struct mtx irq_lock; /* protects irq condition checks */ 641 struct mtx dev_lock; /* protects everything else */ 642 DRM_SPINTYPE drw_lock; 643 644 /* Usage Counters */ 645 int open_count; /* Outstanding files open */ 646 int buf_use; /* Buffers in use -- cannot alloc */ 647 648 /* Performance counters */ 649 unsigned long counters; 650 enum drm_stat_type types[15]; 651 atomic_t counts[15]; 652 653 /* Authentication */ 654 drm_file_list_t files; 655 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 656 657 /* Linked list of mappable regions. Protected by dev_lock */ 658 drm_map_list_t maplist; 659 struct unrhdr *map_unrhdr; 660 661 drm_local_map_t **context_sareas; 662 int max_context; 663 664 drm_lock_data_t lock; /* Information on hardware lock */ 665 666 /* DMA queues (contexts) */ 667 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 668 669 /* Context support */ 670 int irq; /* Interrupt used by board */ 671 int irq_enabled; /* True if the irq handler is enabled */ 672 int msi_enabled; /* MSI enabled */ 673 int irqrid; /* Interrupt used by board */ 674 struct resource *irqr; /* Resource for interrupt used by board */ 675 void *irqh; /* Handle from bus_setup_intr */ 676 677 /* Storage of resource pointers for drm_get_resource_* */ 678 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 679 int pcirid[DRM_MAX_PCI_RESOURCE]; 680 681 int pci_domain; 682 int pci_bus; 683 int pci_slot; 684 int pci_func; 685 686 atomic_t context_flag; /* Context swapping flag */ 687 int last_context; /* Last current context */ 688 689 int vblank_disable_allowed; 690 struct callout vblank_disable_timer; 691 u32 max_vblank_count; /* size of vblank counter register */ 692 struct drm_vblank_info *vblank; /* per crtc vblank info */ 693 int num_crtcs; 694 695 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 696 697 /* Sysctl support */ 698 struct drm_sysctl_info *sysctl; 699 700 drm_agp_head_t *agp; 701 drm_sg_mem_t *sg; /* Scatter gather memory */ 702 atomic_t *ctx_bitmap; 703 void *dev_private; 704 unsigned int agp_buffer_token; 705 drm_local_map_t *agp_buffer_map; 706 707 struct unrhdr *drw_unrhdr; 708 /* RB tree of drawable infos */ 709 RB_HEAD(drawable_tree, bsd_drm_drawable_info) drw_head; 710}; 711 712static __inline__ int drm_core_check_feature(struct drm_device *dev, 713 int feature) 714{ 715 return ((dev->driver->driver_features & feature) ? 1 : 0); 716} 717 718#if __OS_HAS_AGP 719static inline int drm_core_has_AGP(struct drm_device *dev) 720{ 721 return drm_core_check_feature(dev, DRIVER_USE_AGP); 722} 723#else 724#define drm_core_has_AGP(dev) (0) 725#endif 726 727extern int drm_debug_flag; 728 729/* Device setup support (drm_drv.c) */ 730int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 731int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 732void drm_close(void *data); 733int drm_detach(device_t kdev); 734d_ioctl_t drm_ioctl; 735d_open_t drm_open; 736d_read_t drm_read; 737d_poll_t drm_poll; 738d_mmap_t drm_mmap; 739extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 740 741/* File operations helpers (drm_fops.c) */ 742extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 743 DRM_STRUCTPROC *p, 744 struct drm_device *dev); 745 746/* Memory management support (drm_memory.c) */ 747void drm_mem_init(void); 748void drm_mem_uninit(void); 749void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 750void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 751void drm_ioremapfree(drm_local_map_t *map); 752int drm_mtrr_add(unsigned long offset, size_t size, int flags); 753int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 754 755int drm_context_switch(struct drm_device *dev, int old, int new); 756int drm_context_switch_complete(struct drm_device *dev, int new); 757 758int drm_ctxbitmap_init(struct drm_device *dev); 759void drm_ctxbitmap_cleanup(struct drm_device *dev); 760void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 761int drm_ctxbitmap_next(struct drm_device *dev); 762 763/* Locking IOCTL support (drm_lock.c) */ 764int drm_lock_take(struct drm_lock_data *lock_data, 765 unsigned int context); 766int drm_lock_transfer(struct drm_lock_data *lock_data, 767 unsigned int context); 768int drm_lock_free(struct drm_lock_data *lock_data, 769 unsigned int context); 770 771/* Buffer management support (drm_bufs.c) */ 772unsigned long drm_get_resource_start(struct drm_device *dev, 773 unsigned int resource); 774unsigned long drm_get_resource_len(struct drm_device *dev, 775 unsigned int resource); 776void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 777int drm_order(unsigned long size); 778int drm_addmap(struct drm_device *dev, unsigned long offset, 779 unsigned long size, 780 enum drm_map_type type, enum drm_map_flags flags, 781 drm_local_map_t **map_ptr); 782int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 783int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request); 784int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 785 786/* DMA support (drm_dma.c) */ 787int drm_dma_setup(struct drm_device *dev); 788void drm_dma_takedown(struct drm_device *dev); 789void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 790void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 791#define drm_core_reclaim_buffers drm_reclaim_buffers 792 793/* IRQ support (drm_irq.c) */ 794int drm_irq_install(struct drm_device *dev); 795int drm_irq_uninstall(struct drm_device *dev); 796irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 797void drm_driver_irq_preinstall(struct drm_device *dev); 798void drm_driver_irq_postinstall(struct drm_device *dev); 799void drm_driver_irq_uninstall(struct drm_device *dev); 800void drm_handle_vblank(struct drm_device *dev, int crtc); 801u32 drm_vblank_count(struct drm_device *dev, int crtc); 802int drm_vblank_get(struct drm_device *dev, int crtc); 803void drm_vblank_put(struct drm_device *dev, int crtc); 804void drm_vblank_cleanup(struct drm_device *dev); 805int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 806int drm_vblank_init(struct drm_device *dev, int num_crtcs); 807int drm_modeset_ctl(struct drm_device *dev, void *data, 808 struct drm_file *file_priv); 809 810/* AGP/PCI Express/GART support (drm_agpsupport.c) */ 811int drm_device_is_agp(struct drm_device *dev); 812int drm_device_is_pcie(struct drm_device *dev); 813drm_agp_head_t *drm_agp_init(void); 814int drm_agp_acquire(struct drm_device *dev); 815int drm_agp_release(struct drm_device *dev); 816int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 817int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 818void *drm_agp_allocate_memory(size_t pages, u32 type); 819int drm_agp_free_memory(void *handle); 820int drm_agp_bind_memory(void *handle, off_t start); 821int drm_agp_unbind_memory(void *handle); 822int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 823int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 824int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 825int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 826 827/* Scatter Gather Support (drm_scatter.c) */ 828void drm_sg_cleanup(drm_sg_mem_t *entry); 829int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 830 831/* sysctl support (drm_sysctl.h) */ 832extern int drm_sysctl_init(struct drm_device *dev); 833extern int drm_sysctl_cleanup(struct drm_device *dev); 834 835/* ATI PCIGART support (ati_pcigart.c) */ 836int drm_ati_pcigart_init(struct drm_device *dev, 837 struct drm_ati_pcigart_info *gart_info); 838int drm_ati_pcigart_cleanup(struct drm_device *dev, 839 struct drm_ati_pcigart_info *gart_info); 840 841/* Locking IOCTL support (drm_drv.c) */ 842int drm_lock(struct drm_device *dev, void *data, 843 struct drm_file *file_priv); 844int drm_unlock(struct drm_device *dev, void *data, 845 struct drm_file *file_priv); 846int drm_version(struct drm_device *dev, void *data, 847 struct drm_file *file_priv); 848int drm_setversion(struct drm_device *dev, void *data, 849 struct drm_file *file_priv); 850 851/* Misc. IOCTL support (drm_ioctl.c) */ 852int drm_irq_by_busid(struct drm_device *dev, void *data, 853 struct drm_file *file_priv); 854int drm_getunique(struct drm_device *dev, void *data, 855 struct drm_file *file_priv); 856int drm_setunique(struct drm_device *dev, void *data, 857 struct drm_file *file_priv); 858int drm_getmap(struct drm_device *dev, void *data, 859 struct drm_file *file_priv); 860int drm_getclient(struct drm_device *dev, void *data, 861 struct drm_file *file_priv); 862int drm_getstats(struct drm_device *dev, void *data, 863 struct drm_file *file_priv); 864int drm_noop(struct drm_device *dev, void *data, 865 struct drm_file *file_priv); 866 867/* Context IOCTL support (drm_context.c) */ 868int drm_resctx(struct drm_device *dev, void *data, 869 struct drm_file *file_priv); 870int drm_addctx(struct drm_device *dev, void *data, 871 struct drm_file *file_priv); 872int drm_modctx(struct drm_device *dev, void *data, 873 struct drm_file *file_priv); 874int drm_getctx(struct drm_device *dev, void *data, 875 struct drm_file *file_priv); 876int drm_switchctx(struct drm_device *dev, void *data, 877 struct drm_file *file_priv); 878int drm_newctx(struct drm_device *dev, void *data, 879 struct drm_file *file_priv); 880int drm_rmctx(struct drm_device *dev, void *data, 881 struct drm_file *file_priv); 882int drm_setsareactx(struct drm_device *dev, void *data, 883 struct drm_file *file_priv); 884int drm_getsareactx(struct drm_device *dev, void *data, 885 struct drm_file *file_priv); 886 887/* Drawable IOCTL support (drm_drawable.c) */ 888int drm_adddraw(struct drm_device *dev, void *data, 889 struct drm_file *file_priv); 890int drm_rmdraw(struct drm_device *dev, void *data, 891 struct drm_file *file_priv); 892int drm_update_draw(struct drm_device *dev, void *data, 893 struct drm_file *file_priv); 894struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, 895 int handle); 896 897/* Drawable support (drm_drawable.c) */ 898void drm_drawable_free_all(struct drm_device *dev); 899 900/* Authentication IOCTL support (drm_auth.c) */ 901int drm_getmagic(struct drm_device *dev, void *data, 902 struct drm_file *file_priv); 903int drm_authmagic(struct drm_device *dev, void *data, 904 struct drm_file *file_priv); 905 906/* Buffer management support (drm_bufs.c) */ 907int drm_addmap_ioctl(struct drm_device *dev, void *data, 908 struct drm_file *file_priv); 909int drm_rmmap_ioctl(struct drm_device *dev, void *data, 910 struct drm_file *file_priv); 911int drm_addbufs(struct drm_device *dev, void *data, 912 struct drm_file *file_priv); 913int drm_infobufs(struct drm_device *dev, void *data, 914 struct drm_file *file_priv); 915int drm_markbufs(struct drm_device *dev, void *data, 916 struct drm_file *file_priv); 917int drm_freebufs(struct drm_device *dev, void *data, 918 struct drm_file *file_priv); 919int drm_mapbufs(struct drm_device *dev, void *data, 920 struct drm_file *file_priv); 921 922/* DMA support (drm_dma.c) */ 923int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 924 925/* IRQ support (drm_irq.c) */ 926int drm_control(struct drm_device *dev, void *data, 927 struct drm_file *file_priv); 928int drm_wait_vblank(struct drm_device *dev, void *data, 929 struct drm_file *file_priv); 930 931/* AGP/GART support (drm_agpsupport.c) */ 932int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 933 struct drm_file *file_priv); 934int drm_agp_release_ioctl(struct drm_device *dev, void *data, 935 struct drm_file *file_priv); 936int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 937 struct drm_file *file_priv); 938int drm_agp_info_ioctl(struct drm_device *dev, void *data, 939 struct drm_file *file_priv); 940int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 941 struct drm_file *file_priv); 942int drm_agp_free_ioctl(struct drm_device *dev, void *data, 943 struct drm_file *file_priv); 944int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 945 struct drm_file *file_priv); 946int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 947 struct drm_file *file_priv); 948 949/* Scatter Gather Support (drm_scatter.c) */ 950int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 951 struct drm_file *file_priv); 952int drm_sg_free(struct drm_device *dev, void *data, 953 struct drm_file *file_priv); 954 955/* consistent PCI memory functions (drm_pci.c) */ 956drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 957 size_t align, dma_addr_t maxaddr); 958void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 959 960/* Inline replacements for drm_alloc and friends */ 961static __inline__ void * 962drm_alloc(size_t size, struct malloc_type *area) 963{ 964 return malloc(size, area, M_NOWAIT); 965} 966 967static __inline__ void * 968drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 969{ 970 return malloc(size * nmemb, area, M_NOWAIT | M_ZERO); 971} 972 973static __inline__ void * 974drm_realloc(void *oldpt, size_t oldsize, size_t size, 975 struct malloc_type *area) 976{ 977 return reallocf(oldpt, size, area, M_NOWAIT); 978} 979 980static __inline__ void 981drm_free(void *pt, size_t size, struct malloc_type *area) 982{ 983 free(pt, area); 984} 985 986/* Inline replacements for DRM_IOREMAP macros */ 987static __inline__ void 988drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 989{ 990 map->virtual = drm_ioremap_wc(dev, map); 991} 992static __inline__ void 993drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 994{ 995 map->virtual = drm_ioremap(dev, map); 996} 997static __inline__ void 998drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 999{ 1000 if ( map->virtual && map->size ) 1001 drm_ioremapfree(map); 1002} 1003 1004static __inline__ struct drm_local_map * 1005drm_core_findmap(struct drm_device *dev, unsigned long offset) 1006{ 1007 drm_local_map_t *map; 1008 1009 DRM_SPINLOCK_ASSERT(&dev->dev_lock); 1010 TAILQ_FOREACH(map, &dev->maplist, link) { 1011 if (offset == (unsigned long)map->handle) 1012 return map; 1013 } 1014 return NULL; 1015} 1016 1017static __inline__ void drm_core_dropmap(struct drm_map *map) 1018{ 1019} 1020 1021#endif /* __KERNEL__ */ 1022#endif /* _DRM_P_H_ */ 1023