drmP.h revision 203287
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: head/sys/dev/drm/drmP.h 203287 2010-01-31 14:25:29Z rnoland $"); 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/stat.h> 53#if __FreeBSD_version >= 700000 54#include <sys/priv.h> 55#endif 56#include <sys/proc.h> 57#include <sys/lock.h> 58#include <sys/fcntl.h> 59#include <sys/uio.h> 60#include <sys/filio.h> 61#include <sys/sysctl.h> 62#include <sys/bus.h> 63#include <sys/signalvar.h> 64#include <sys/poll.h> 65#include <sys/tree.h> 66#include <vm/vm.h> 67#include <vm/pmap.h> 68#include <vm/vm_extern.h> 69#include <vm/vm_map.h> 70#include <vm/vm_param.h> 71#include <machine/param.h> 72#include <machine/pmap.h> 73#include <machine/bus.h> 74#include <machine/resource.h> 75#include <machine/specialreg.h> 76#include <machine/sysarch.h> 77#include <sys/endian.h> 78#include <sys/mman.h> 79#include <sys/rman.h> 80#include <sys/memrange.h> 81#if __FreeBSD_version >= 800004 82#include <dev/agp/agpvar.h> 83#else /* __FreeBSD_version >= 800004 */ 84#include <pci/agpvar.h> 85#endif /* __FreeBSD_version >= 800004 */ 86#include <sys/agpio.h> 87#include <sys/mutex.h> 88#include <dev/pci/pcivar.h> 89#include <dev/pci/pcireg.h> 90#include <sys/selinfo.h> 91#include <sys/bus.h> 92 93#include "dev/drm/drm.h" 94#include "dev/drm/drm_atomic.h" 95#include "dev/drm/drm_internal.h" 96#include "dev/drm/drm_linux_list.h" 97 98#include <opt_drm.h> 99#ifdef DRM_DEBUG 100#undef DRM_DEBUG 101#define DRM_DEBUG_DEFAULT_ON 1 102#endif /* DRM_DEBUG */ 103 104#if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__) 105#include <sys/file.h> 106#include <sys/proc.h> 107#include <machine/../linux/linux.h> 108#include <machine/../linux/linux_proto.h> 109#else 110/* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't 111 * supported on this OS yet. 112 */ 113#undef DRM_LINUX 114#define DRM_LINUX 0 115#endif 116 117/* driver capabilities and requirements mask */ 118#define DRIVER_USE_AGP 0x1 119#define DRIVER_REQUIRE_AGP 0x2 120#define DRIVER_USE_MTRR 0x4 121#define DRIVER_PCI_DMA 0x8 122#define DRIVER_SG 0x10 123#define DRIVER_HAVE_DMA 0x20 124#define DRIVER_HAVE_IRQ 0x40 125#define DRIVER_DMA_QUEUE 0x100 126 127 128#define DRM_HASH_SIZE 16 /* Size of key hash table */ 129#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 130#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 131 132MALLOC_DECLARE(DRM_MEM_DMA); 133MALLOC_DECLARE(DRM_MEM_SAREA); 134MALLOC_DECLARE(DRM_MEM_DRIVER); 135MALLOC_DECLARE(DRM_MEM_MAGIC); 136MALLOC_DECLARE(DRM_MEM_IOCTLS); 137MALLOC_DECLARE(DRM_MEM_MAPS); 138MALLOC_DECLARE(DRM_MEM_BUFS); 139MALLOC_DECLARE(DRM_MEM_SEGS); 140MALLOC_DECLARE(DRM_MEM_PAGES); 141MALLOC_DECLARE(DRM_MEM_FILES); 142MALLOC_DECLARE(DRM_MEM_QUEUES); 143MALLOC_DECLARE(DRM_MEM_CMDS); 144MALLOC_DECLARE(DRM_MEM_MAPPINGS); 145MALLOC_DECLARE(DRM_MEM_BUFLISTS); 146MALLOC_DECLARE(DRM_MEM_AGPLISTS); 147MALLOC_DECLARE(DRM_MEM_CTXBITMAP); 148MALLOC_DECLARE(DRM_MEM_SGLISTS); 149MALLOC_DECLARE(DRM_MEM_DRAWABLE); 150MALLOC_DECLARE(DRM_MEM_MM); 151MALLOC_DECLARE(DRM_MEM_HASHTAB); 152 153SYSCTL_DECL(_hw_drm); 154 155#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 156 157 /* Internal types and structures */ 158#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 159#define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 160#define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 161 162#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 163 164#define __OS_HAS_AGP 1 165 166#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 167#define DRM_DEV_UID 0 168#define DRM_DEV_GID 0 169 170#define wait_queue_head_t atomic_t 171#define DRM_WAKEUP(w) wakeup((void *)w) 172#define DRM_WAKEUP_INT(w) wakeup(w) 173#define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 174 175#define DRM_CURPROC curthread 176#define DRM_STRUCTPROC struct thread 177#define DRM_SPINTYPE struct mtx 178#define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF) 179#define DRM_SPINUNINIT(l) mtx_destroy(l) 180#define DRM_SPINLOCK(l) mtx_lock(l) 181#define DRM_SPINUNLOCK(u) mtx_unlock(u) 182#define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \ 183 mtx_lock(l); \ 184 (void)irqflags; \ 185} while (0) 186#define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u) 187#define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 188#define DRM_CURRENTPID curthread->td_proc->p_pid 189#define DRM_LOCK() mtx_lock(&dev->dev_lock) 190#define DRM_UNLOCK() mtx_unlock(&dev->dev_lock) 191#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 192 193#define DRM_IRQ_ARGS void *arg 194typedef void irqreturn_t; 195#define IRQ_HANDLED /* nothing */ 196#define IRQ_NONE /* nothing */ 197 198#define unlikely(x) __builtin_expect(!!(x), 0) 199#define container_of(ptr, type, member) ({ \ 200 __typeof( ((type *)0)->member ) *__mptr = (ptr); \ 201 (type *)( (char *)__mptr - offsetof(type,member) );}) 202 203enum { 204 DRM_IS_NOT_AGP, 205 DRM_IS_AGP, 206 DRM_MIGHT_BE_AGP 207}; 208#define DRM_AGP_MEM struct agp_memory_info 209 210#define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 211 212#define PAGE_ALIGN(addr) round_page(addr) 213/* DRM_SUSER returns true if the user is superuser */ 214#if __FreeBSD_version >= 700000 215#define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 216#else 217#define DRM_SUSER(p) (suser(p) == 0) 218#endif 219#define DRM_AGP_FIND_DEVICE() agp_find_device() 220#define DRM_MTRR_WC MDF_WRITECOMBINE 221#define jiffies ticks 222 223typedef unsigned long dma_addr_t; 224typedef u_int64_t u64; 225typedef u_int32_t u32; 226typedef u_int16_t u16; 227typedef u_int8_t u8; 228 229/* DRM_READMEMORYBARRIER() prevents reordering of reads. 230 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 231 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 232 */ 233#define DRM_READMEMORYBARRIER() rmb() 234#define DRM_WRITEMEMORYBARRIER() wmb() 235#define DRM_MEMORYBARRIER() mb() 236 237#define DRM_READ8(map, offset) \ 238 *(volatile u_int8_t *)(((vm_offset_t)(map)->handle) + \ 239 (vm_offset_t)(offset)) 240#define DRM_READ16(map, offset) \ 241 *(volatile u_int16_t *)(((vm_offset_t)(map)->handle) + \ 242 (vm_offset_t)(offset)) 243#define DRM_READ32(map, offset) \ 244 *(volatile u_int32_t *)(((vm_offset_t)(map)->handle) + \ 245 (vm_offset_t)(offset)) 246#define DRM_WRITE8(map, offset, val) \ 247 *(volatile u_int8_t *)(((vm_offset_t)(map)->handle) + \ 248 (vm_offset_t)(offset)) = val 249#define DRM_WRITE16(map, offset, val) \ 250 *(volatile u_int16_t *)(((vm_offset_t)(map)->handle) + \ 251 (vm_offset_t)(offset)) = val 252#define DRM_WRITE32(map, offset, val) \ 253 *(volatile u_int32_t *)(((vm_offset_t)(map)->handle) + \ 254 (vm_offset_t)(offset)) = val 255 256#define DRM_VERIFYAREA_READ( uaddr, size ) \ 257 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 258 259#define DRM_COPY_TO_USER(user, kern, size) \ 260 copyout(kern, user, size) 261#define DRM_COPY_FROM_USER(kern, user, size) \ 262 copyin(user, kern, size) 263#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 264 copyin(arg2, arg1, arg3) 265#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 266 copyout(arg2, arg1, arg3) 267#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 268 ((val) = fuword32(uaddr), 0) 269 270#define cpu_to_le32(x) htole32(x) 271#define le32_to_cpu(x) le32toh(x) 272 273#define DRM_HZ hz 274#define DRM_UDELAY(udelay) DELAY(udelay) 275#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ 276 277#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 278 (_map) = (_dev)->context_sareas[_ctx]; \ 279} while(0) 280 281#define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 282do { \ 283 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 284 dev->lock.file_priv != file_priv) { \ 285 DRM_ERROR("%s called without lock held\n", \ 286 __FUNCTION__); \ 287 return EINVAL; \ 288 } \ 289} while (0) 290 291/* Returns -errno to shared code */ 292#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 293for ( ret = 0 ; !ret && !(condition) ; ) { \ 294 DRM_UNLOCK(); \ 295 mtx_lock(&dev->irq_lock); \ 296 if (!(condition)) \ 297 ret = -mtx_sleep(&(queue), &dev->irq_lock, \ 298 PCATCH, "drmwtq", (timeout)); \ 299 mtx_unlock(&dev->irq_lock); \ 300 DRM_LOCK(); \ 301} 302 303#define DRM_ERROR(fmt, ...) \ 304 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 305 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 306 307#define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 308 309#define DRM_DEBUG(fmt, ...) do { \ 310 if (drm_debug_flag) \ 311 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 312 __func__ , ##__VA_ARGS__); \ 313} while (0) 314 315typedef struct drm_pci_id_list 316{ 317 int vendor; 318 int device; 319 long driver_private; 320 char *name; 321} drm_pci_id_list_t; 322 323struct drm_msi_blacklist_entry 324{ 325 int vendor; 326 int device; 327}; 328 329#define DRM_AUTH 0x1 330#define DRM_MASTER 0x2 331#define DRM_ROOT_ONLY 0x4 332typedef struct drm_ioctl_desc { 333 unsigned long cmd; 334 int (*func)(struct drm_device *dev, void *data, 335 struct drm_file *file_priv); 336 int flags; 337} drm_ioctl_desc_t; 338/** 339 * Creates a driver or general drm_ioctl_desc array entry for the given 340 * ioctl, for use by drm_ioctl(). 341 */ 342#define DRM_IOCTL_DEF(ioctl, func, flags) \ 343 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 344 345typedef struct drm_magic_entry { 346 drm_magic_t magic; 347 struct drm_file *priv; 348 struct drm_magic_entry *next; 349} drm_magic_entry_t; 350 351typedef struct drm_magic_head { 352 struct drm_magic_entry *head; 353 struct drm_magic_entry *tail; 354} drm_magic_head_t; 355 356typedef struct drm_buf { 357 int idx; /* Index into master buflist */ 358 int total; /* Buffer size */ 359 int order; /* log-base-2(total) */ 360 int used; /* Amount of buffer in use (for DMA) */ 361 unsigned long offset; /* Byte offset (used internally) */ 362 void *address; /* Address of buffer */ 363 unsigned long bus_address; /* Bus address of buffer */ 364 struct drm_buf *next; /* Kernel-only: used for free list */ 365 __volatile__ int pending; /* On hardware DMA queue */ 366 struct drm_file *file_priv; /* Unique identifier of holding process */ 367 int context; /* Kernel queue for this buffer */ 368 enum { 369 DRM_LIST_NONE = 0, 370 DRM_LIST_FREE = 1, 371 DRM_LIST_WAIT = 2, 372 DRM_LIST_PEND = 3, 373 DRM_LIST_PRIO = 4, 374 DRM_LIST_RECLAIM = 5 375 } list; /* Which list we're on */ 376 377 int dev_priv_size; /* Size of buffer private stoarge */ 378 void *dev_private; /* Per-buffer private storage */ 379} drm_buf_t; 380 381typedef struct drm_freelist { 382 int initialized; /* Freelist in use */ 383 atomic_t count; /* Number of free buffers */ 384 drm_buf_t *next; /* End pointer */ 385 386 int low_mark; /* Low water mark */ 387 int high_mark; /* High water mark */ 388} drm_freelist_t; 389 390typedef struct drm_dma_handle { 391 void *vaddr; 392 bus_addr_t busaddr; 393 bus_dma_tag_t tag; 394 bus_dmamap_t map; 395} drm_dma_handle_t; 396 397typedef struct drm_buf_entry { 398 int buf_size; 399 int buf_count; 400 drm_buf_t *buflist; 401 int seg_count; 402 drm_dma_handle_t **seglist; 403 int page_order; 404 405 drm_freelist_t freelist; 406} drm_buf_entry_t; 407 408typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 409struct drm_file { 410 TAILQ_ENTRY(drm_file) link; 411 struct drm_device *dev; 412 int authenticated; 413 int master; 414 pid_t pid; 415 uid_t uid; 416 drm_magic_t magic; 417 unsigned long ioctl_count; 418 void *driver_priv; 419}; 420 421typedef struct drm_lock_data { 422 struct drm_hw_lock *hw_lock; /* Hardware lock */ 423 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/ 424 int lock_queue; /* Queue of blocked processes */ 425 unsigned long lock_time; /* Time of last lock in jiffies */ 426} drm_lock_data_t; 427 428/* This structure, in the struct drm_device, is always initialized while the 429 * device 430 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 431 * when set marks that no further bufs may be allocated until device teardown 432 * occurs (when the last open of the device has closed). The high/low 433 * watermarks of bufs are only touched by the X Server, and thus not 434 * concurrently accessed, so no locking is needed. 435 */ 436typedef struct drm_device_dma { 437 drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; 438 int buf_count; 439 drm_buf_t **buflist; /* Vector of pointers info bufs */ 440 int seg_count; 441 int page_count; 442 unsigned long *pagelist; 443 unsigned long byte_count; 444 enum { 445 _DRM_DMA_USE_AGP = 0x01, 446 _DRM_DMA_USE_SG = 0x02 447 } flags; 448} drm_device_dma_t; 449 450typedef struct drm_agp_mem { 451 void *handle; 452 unsigned long bound; /* address */ 453 int pages; 454 struct drm_agp_mem *prev; 455 struct drm_agp_mem *next; 456} drm_agp_mem_t; 457 458typedef struct drm_agp_head { 459 device_t agpdev; 460 struct agp_info info; 461 const char *chipset; 462 drm_agp_mem_t *memory; 463 unsigned long mode; 464 int enabled; 465 int acquired; 466 unsigned long base; 467 int mtrr; 468 int cant_use_aperture; 469 unsigned long page_mask; 470} drm_agp_head_t; 471 472typedef struct drm_sg_mem { 473 unsigned long handle; 474 void *virtual; 475 int pages; 476 dma_addr_t *busaddr; 477 struct drm_dma_handle *dmah; /* Handle to PCI memory */ 478} drm_sg_mem_t; 479 480typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; 481 482typedef struct drm_local_map { 483 unsigned long offset; /* Physical address (0 for SAREA)*/ 484 unsigned long size; /* Physical size (bytes) */ 485 enum drm_map_type type; /* Type of memory mapped */ 486 enum drm_map_flags flags; /* Flags */ 487 void *handle; /* User-space: "Handle" to pass to mmap */ 488 /* Kernel-space: kernel-virtual address */ 489 int mtrr; /* Boolean: MTRR used */ 490 /* Private data */ 491 int rid; /* PCI resource ID for bus_space */ 492 struct resource *bsr; 493 bus_space_tag_t bst; 494 bus_space_handle_t bsh; 495 drm_dma_handle_t *dmah; 496 TAILQ_ENTRY(drm_local_map) link; 497} drm_local_map_t; 498 499struct drm_vblank_info { 500 wait_queue_head_t queue; /* vblank wait queue */ 501 atomic_t count; /* number of VBLANK interrupts */ 502 /* (driver must alloc the right number of counters) */ 503 atomic_t refcount; /* number of users of vblank interrupts */ 504 u32 last; /* protected by dev->vbl_lock, used */ 505 /* for wraparound handling */ 506 int enabled; /* so we don't call enable more than */ 507 /* once per disable */ 508 int inmodeset; /* Display driver is setting mode */ 509}; 510 511/* location of GART table */ 512#define DRM_ATI_GART_MAIN 1 513#define DRM_ATI_GART_FB 2 514 515#define DRM_ATI_GART_PCI 1 516#define DRM_ATI_GART_PCIE 2 517#define DRM_ATI_GART_IGP 3 518 519struct drm_ati_pcigart_info { 520 int gart_table_location; 521 int gart_reg_if; 522 void *addr; 523 dma_addr_t bus_addr; 524 dma_addr_t table_mask; 525 dma_addr_t member_mask; 526 struct drm_dma_handle *table_handle; 527 drm_local_map_t mapping; 528 int table_size; 529 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 530}; 531 532#ifndef DMA_BIT_MASK 533#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 534#endif 535 536#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 537 538struct drm_driver_info { 539 int (*load)(struct drm_device *, unsigned long flags); 540 int (*firstopen)(struct drm_device *); 541 int (*open)(struct drm_device *, struct drm_file *); 542 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 543 void (*postclose)(struct drm_device *, struct drm_file *); 544 void (*lastclose)(struct drm_device *); 545 int (*unload)(struct drm_device *); 546 void (*reclaim_buffers_locked)(struct drm_device *, 547 struct drm_file *file_priv); 548 int (*dma_ioctl)(struct drm_device *dev, void *data, 549 struct drm_file *file_priv); 550 void (*dma_ready)(struct drm_device *); 551 int (*dma_quiescent)(struct drm_device *); 552 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 553 enum drm_lock_flags flags); 554 int (*dma_flush_unblock)(struct drm_device *, int context, 555 enum drm_lock_flags flags); 556 int (*context_ctor)(struct drm_device *dev, int context); 557 int (*context_dtor)(struct drm_device *dev, int context); 558 int (*kernel_context_switch)(struct drm_device *dev, int old, 559 int new); 560 int (*kernel_context_switch_unlock)(struct drm_device *dev); 561 void (*irq_preinstall)(struct drm_device *dev); 562 int (*irq_postinstall)(struct drm_device *dev); 563 void (*irq_uninstall)(struct drm_device *dev); 564 void (*irq_handler)(DRM_IRQ_ARGS); 565 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 566 int (*enable_vblank)(struct drm_device *dev, int crtc); 567 void (*disable_vblank)(struct drm_device *dev, int crtc); 568 569 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 570 571 /** 572 * Called by \c drm_device_is_agp. Typically used to determine if a 573 * card is really attached to AGP or not. 574 * 575 * \param dev DRM device handle 576 * 577 * \returns 578 * One of three values is returned depending on whether or not the 579 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 580 * (return of 1), or may or may not be AGP (return of 2). 581 */ 582 int (*device_is_agp) (struct drm_device * dev); 583 584 drm_ioctl_desc_t *ioctls; 585 int max_ioctl; 586 587 int buf_priv_size; 588 589 int major; 590 int minor; 591 int patchlevel; 592 const char *name; /* Simple driver name */ 593 const char *desc; /* Longer driver name */ 594 const char *date; /* Date of last major changes. */ 595 596 u32 driver_features; 597}; 598 599/* Length for the array of resource pointers for drm_get_resource_*. */ 600#define DRM_MAX_PCI_RESOURCE 6 601 602/** 603 * DRM device functions structure 604 */ 605struct drm_device { 606 struct drm_driver_info *driver; 607 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 608 609 u_int16_t pci_device; /* PCI device id */ 610 u_int16_t pci_vendor; /* PCI vendor id */ 611 612 char *unique; /* Unique identifier: e.g., busid */ 613 int unique_len; /* Length of unique field */ 614 device_t device; /* Device instance from newbus */ 615 struct cdev *devnode; /* Device number for mknod */ 616 int if_version; /* Highest interface version set */ 617 618 int flags; /* Flags to open(2) */ 619 620 /* Locks */ 621 struct mtx vbl_lock; /* protects vblank operations */ 622 struct mtx dma_lock; /* protects dev->dma */ 623 struct mtx irq_lock; /* protects irq condition checks */ 624 struct mtx dev_lock; /* protects everything else */ 625 DRM_SPINTYPE drw_lock; 626 627 /* Usage Counters */ 628 int open_count; /* Outstanding files open */ 629 int buf_use; /* Buffers in use -- cannot alloc */ 630 631 /* Performance counters */ 632 unsigned long counters; 633 enum drm_stat_type types[15]; 634 atomic_t counts[15]; 635 636 /* Authentication */ 637 drm_file_list_t files; 638 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 639 640 /* Linked list of mappable regions. Protected by dev_lock */ 641 drm_map_list_t maplist; 642 643 drm_local_map_t **context_sareas; 644 int max_context; 645 646 drm_lock_data_t lock; /* Information on hardware lock */ 647 648 /* DMA queues (contexts) */ 649 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 650 651 /* Context support */ 652 int irq; /* Interrupt used by board */ 653 int irq_enabled; /* True if the irq handler is enabled */ 654 int msi_enabled; /* MSI enabled */ 655 int irqrid; /* Interrupt used by board */ 656 struct resource *irqr; /* Resource for interrupt used by board */ 657 void *irqh; /* Handle from bus_setup_intr */ 658 659 /* Storage of resource pointers for drm_get_resource_* */ 660 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 661 int pcirid[DRM_MAX_PCI_RESOURCE]; 662 663 int pci_domain; 664 int pci_bus; 665 int pci_slot; 666 int pci_func; 667 668 atomic_t context_flag; /* Context swapping flag */ 669 int last_context; /* Last current context */ 670 671 int vblank_disable_allowed; 672 struct callout vblank_disable_timer; 673 u32 max_vblank_count; /* size of vblank counter register */ 674 struct drm_vblank_info *vblank; /* per crtc vblank info */ 675 int num_crtcs; 676 677 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 678 679 /* Sysctl support */ 680 struct drm_sysctl_info *sysctl; 681 682 drm_agp_head_t *agp; 683 drm_sg_mem_t *sg; /* Scatter gather memory */ 684 atomic_t *ctx_bitmap; 685 void *dev_private; 686 unsigned int agp_buffer_token; 687 drm_local_map_t *agp_buffer_map; 688 689 struct unrhdr *drw_unrhdr; 690 /* RB tree of drawable infos */ 691 RB_HEAD(drawable_tree, bsd_drm_drawable_info) drw_head; 692}; 693 694static __inline__ int drm_core_check_feature(struct drm_device *dev, 695 int feature) 696{ 697 return ((dev->driver->driver_features & feature) ? 1 : 0); 698} 699 700#if __OS_HAS_AGP 701static inline int drm_core_has_AGP(struct drm_device *dev) 702{ 703 return drm_core_check_feature(dev, DRIVER_USE_AGP); 704} 705#else 706#define drm_core_has_AGP(dev) (0) 707#endif 708 709extern int drm_debug_flag; 710 711/* Device setup support (drm_drv.c) */ 712int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 713int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 714void drm_close(void *data); 715int drm_detach(device_t kdev); 716d_ioctl_t drm_ioctl; 717d_open_t drm_open; 718d_read_t drm_read; 719d_poll_t drm_poll; 720d_mmap_t drm_mmap; 721extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 722 723/* File operations helpers (drm_fops.c) */ 724extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 725 DRM_STRUCTPROC *p, 726 struct drm_device *dev); 727 728/* Memory management support (drm_memory.c) */ 729void drm_mem_init(void); 730void drm_mem_uninit(void); 731void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 732void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 733void drm_ioremapfree(drm_local_map_t *map); 734int drm_mtrr_add(unsigned long offset, size_t size, int flags); 735int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 736 737int drm_context_switch(struct drm_device *dev, int old, int new); 738int drm_context_switch_complete(struct drm_device *dev, int new); 739 740int drm_ctxbitmap_init(struct drm_device *dev); 741void drm_ctxbitmap_cleanup(struct drm_device *dev); 742void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 743int drm_ctxbitmap_next(struct drm_device *dev); 744 745/* Locking IOCTL support (drm_lock.c) */ 746int drm_lock_take(struct drm_lock_data *lock_data, 747 unsigned int context); 748int drm_lock_transfer(struct drm_lock_data *lock_data, 749 unsigned int context); 750int drm_lock_free(struct drm_lock_data *lock_data, 751 unsigned int context); 752 753/* Buffer management support (drm_bufs.c) */ 754unsigned long drm_get_resource_start(struct drm_device *dev, 755 unsigned int resource); 756unsigned long drm_get_resource_len(struct drm_device *dev, 757 unsigned int resource); 758void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 759int drm_order(unsigned long size); 760int drm_addmap(struct drm_device *dev, unsigned long offset, 761 unsigned long size, 762 enum drm_map_type type, enum drm_map_flags flags, 763 drm_local_map_t **map_ptr); 764int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 765int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request); 766int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 767 768/* DMA support (drm_dma.c) */ 769int drm_dma_setup(struct drm_device *dev); 770void drm_dma_takedown(struct drm_device *dev); 771void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 772void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 773#define drm_core_reclaim_buffers drm_reclaim_buffers 774 775/* IRQ support (drm_irq.c) */ 776int drm_irq_install(struct drm_device *dev); 777int drm_irq_uninstall(struct drm_device *dev); 778irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 779void drm_driver_irq_preinstall(struct drm_device *dev); 780void drm_driver_irq_postinstall(struct drm_device *dev); 781void drm_driver_irq_uninstall(struct drm_device *dev); 782void drm_handle_vblank(struct drm_device *dev, int crtc); 783u32 drm_vblank_count(struct drm_device *dev, int crtc); 784int drm_vblank_get(struct drm_device *dev, int crtc); 785void drm_vblank_put(struct drm_device *dev, int crtc); 786void drm_vblank_cleanup(struct drm_device *dev); 787int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 788int drm_vblank_init(struct drm_device *dev, int num_crtcs); 789int drm_modeset_ctl(struct drm_device *dev, void *data, 790 struct drm_file *file_priv); 791 792/* AGP/PCI Express/GART support (drm_agpsupport.c) */ 793int drm_device_is_agp(struct drm_device *dev); 794int drm_device_is_pcie(struct drm_device *dev); 795drm_agp_head_t *drm_agp_init(void); 796int drm_agp_acquire(struct drm_device *dev); 797int drm_agp_release(struct drm_device *dev); 798int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 799int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 800void *drm_agp_allocate_memory(size_t pages, u32 type); 801int drm_agp_free_memory(void *handle); 802int drm_agp_bind_memory(void *handle, off_t start); 803int drm_agp_unbind_memory(void *handle); 804int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 805int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 806int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 807int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 808 809/* Scatter Gather Support (drm_scatter.c) */ 810void drm_sg_cleanup(drm_sg_mem_t *entry); 811int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 812 813/* sysctl support (drm_sysctl.h) */ 814extern int drm_sysctl_init(struct drm_device *dev); 815extern int drm_sysctl_cleanup(struct drm_device *dev); 816 817/* ATI PCIGART support (ati_pcigart.c) */ 818int drm_ati_pcigart_init(struct drm_device *dev, 819 struct drm_ati_pcigart_info *gart_info); 820int drm_ati_pcigart_cleanup(struct drm_device *dev, 821 struct drm_ati_pcigart_info *gart_info); 822 823/* Locking IOCTL support (drm_drv.c) */ 824int drm_lock(struct drm_device *dev, void *data, 825 struct drm_file *file_priv); 826int drm_unlock(struct drm_device *dev, void *data, 827 struct drm_file *file_priv); 828int drm_version(struct drm_device *dev, void *data, 829 struct drm_file *file_priv); 830int drm_setversion(struct drm_device *dev, void *data, 831 struct drm_file *file_priv); 832 833/* Misc. IOCTL support (drm_ioctl.c) */ 834int drm_irq_by_busid(struct drm_device *dev, void *data, 835 struct drm_file *file_priv); 836int drm_getunique(struct drm_device *dev, void *data, 837 struct drm_file *file_priv); 838int drm_setunique(struct drm_device *dev, void *data, 839 struct drm_file *file_priv); 840int drm_getmap(struct drm_device *dev, void *data, 841 struct drm_file *file_priv); 842int drm_getclient(struct drm_device *dev, void *data, 843 struct drm_file *file_priv); 844int drm_getstats(struct drm_device *dev, void *data, 845 struct drm_file *file_priv); 846int drm_noop(struct drm_device *dev, void *data, 847 struct drm_file *file_priv); 848 849/* Context IOCTL support (drm_context.c) */ 850int drm_resctx(struct drm_device *dev, void *data, 851 struct drm_file *file_priv); 852int drm_addctx(struct drm_device *dev, void *data, 853 struct drm_file *file_priv); 854int drm_modctx(struct drm_device *dev, void *data, 855 struct drm_file *file_priv); 856int drm_getctx(struct drm_device *dev, void *data, 857 struct drm_file *file_priv); 858int drm_switchctx(struct drm_device *dev, void *data, 859 struct drm_file *file_priv); 860int drm_newctx(struct drm_device *dev, void *data, 861 struct drm_file *file_priv); 862int drm_rmctx(struct drm_device *dev, void *data, 863 struct drm_file *file_priv); 864int drm_setsareactx(struct drm_device *dev, void *data, 865 struct drm_file *file_priv); 866int drm_getsareactx(struct drm_device *dev, void *data, 867 struct drm_file *file_priv); 868 869/* Drawable IOCTL support (drm_drawable.c) */ 870int drm_adddraw(struct drm_device *dev, void *data, 871 struct drm_file *file_priv); 872int drm_rmdraw(struct drm_device *dev, void *data, 873 struct drm_file *file_priv); 874int drm_update_draw(struct drm_device *dev, void *data, 875 struct drm_file *file_priv); 876struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, 877 int handle); 878 879/* Drawable support (drm_drawable.c) */ 880void drm_drawable_free_all(struct drm_device *dev); 881 882/* Authentication IOCTL support (drm_auth.c) */ 883int drm_getmagic(struct drm_device *dev, void *data, 884 struct drm_file *file_priv); 885int drm_authmagic(struct drm_device *dev, void *data, 886 struct drm_file *file_priv); 887 888/* Buffer management support (drm_bufs.c) */ 889int drm_addmap_ioctl(struct drm_device *dev, void *data, 890 struct drm_file *file_priv); 891int drm_rmmap_ioctl(struct drm_device *dev, void *data, 892 struct drm_file *file_priv); 893int drm_addbufs(struct drm_device *dev, void *data, 894 struct drm_file *file_priv); 895int drm_infobufs(struct drm_device *dev, void *data, 896 struct drm_file *file_priv); 897int drm_markbufs(struct drm_device *dev, void *data, 898 struct drm_file *file_priv); 899int drm_freebufs(struct drm_device *dev, void *data, 900 struct drm_file *file_priv); 901int drm_mapbufs(struct drm_device *dev, void *data, 902 struct drm_file *file_priv); 903 904/* DMA support (drm_dma.c) */ 905int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 906 907/* IRQ support (drm_irq.c) */ 908int drm_control(struct drm_device *dev, void *data, 909 struct drm_file *file_priv); 910int drm_wait_vblank(struct drm_device *dev, void *data, 911 struct drm_file *file_priv); 912 913/* AGP/GART support (drm_agpsupport.c) */ 914int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 915 struct drm_file *file_priv); 916int drm_agp_release_ioctl(struct drm_device *dev, void *data, 917 struct drm_file *file_priv); 918int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 919 struct drm_file *file_priv); 920int drm_agp_info_ioctl(struct drm_device *dev, void *data, 921 struct drm_file *file_priv); 922int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 923 struct drm_file *file_priv); 924int drm_agp_free_ioctl(struct drm_device *dev, void *data, 925 struct drm_file *file_priv); 926int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 927 struct drm_file *file_priv); 928int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 929 struct drm_file *file_priv); 930 931/* Scatter Gather Support (drm_scatter.c) */ 932int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 933 struct drm_file *file_priv); 934int drm_sg_free(struct drm_device *dev, void *data, 935 struct drm_file *file_priv); 936 937/* consistent PCI memory functions (drm_pci.c) */ 938drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 939 size_t align, dma_addr_t maxaddr); 940void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 941 942/* Inline replacements for drm_alloc and friends */ 943static __inline__ void * 944drm_alloc(size_t size, struct malloc_type *area) 945{ 946 return malloc(size, area, M_NOWAIT); 947} 948 949static __inline__ void * 950drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 951{ 952 return malloc(size * nmemb, area, M_NOWAIT | M_ZERO); 953} 954 955static __inline__ void * 956drm_realloc(void *oldpt, size_t oldsize, size_t size, 957 struct malloc_type *area) 958{ 959 return reallocf(oldpt, size, area, M_NOWAIT); 960} 961 962static __inline__ void 963drm_free(void *pt, size_t size, struct malloc_type *area) 964{ 965 free(pt, area); 966} 967 968/* Inline replacements for DRM_IOREMAP macros */ 969static __inline__ void 970drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 971{ 972 map->handle = drm_ioremap_wc(dev, map); 973} 974static __inline__ void 975drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 976{ 977 map->handle = drm_ioremap(dev, map); 978} 979static __inline__ void 980drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 981{ 982 if ( map->handle && map->size ) 983 drm_ioremapfree(map); 984} 985 986static __inline__ struct drm_local_map * 987drm_core_findmap(struct drm_device *dev, unsigned long offset) 988{ 989 drm_local_map_t *map; 990 991 DRM_SPINLOCK_ASSERT(&dev->dev_lock); 992 TAILQ_FOREACH(map, &dev->maplist, link) { 993 if (map->offset == offset) 994 return map; 995 } 996 return NULL; 997} 998 999static __inline__ void drm_core_dropmap(struct drm_map *map) 1000{ 1001} 1002 1003#endif /* __KERNEL__ */ 1004#endif /* _DRM_P_H_ */ 1005