drmP.h revision 215367
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 215367 2010-11-16 03:43:06Z nwhitehorn $"); 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/sysctl.h> 63#include <sys/bus.h> 64#include <sys/queue.h> 65#include <sys/signalvar.h> 66#include <sys/poll.h> 67#include <sys/taskqueue.h> 68#include <sys/tree.h> 69#include <vm/vm.h> 70#include <vm/pmap.h> 71#include <vm/vm_extern.h> 72#include <vm/vm_kern.h> 73#include <vm/vm_map.h> 74#include <vm/vm_object.h> 75#include <vm/vm_page.h> 76#include <vm/vm_pager.h> 77#include <vm/vm_param.h> 78#include <vm/vm_phys.h> 79#include <machine/param.h> 80#include <machine/pmap.h> 81#include <machine/bus.h> 82#include <machine/resource.h> 83#if defined(__i386__) || defined(__amd64__) 84#include <machine/specialreg.h> 85#endif 86#include <machine/sysarch.h> 87#include <sys/endian.h> 88#include <sys/mman.h> 89#include <sys/rman.h> 90#include <sys/memrange.h> 91#if __FreeBSD_version >= 800004 92#include <dev/agp/agpvar.h> 93#else /* __FreeBSD_version >= 800004 */ 94#include <pci/agpvar.h> 95#endif /* __FreeBSD_version >= 800004 */ 96#include <sys/agpio.h> 97#include <sys/mutex.h> 98#include <dev/pci/pcivar.h> 99#include <dev/pci/pcireg.h> 100#include <sys/selinfo.h> 101#include <sys/bus.h> 102 103#include "dev/drm/drm.h" 104#include "dev/drm/drm_atomic.h" 105#include "dev/drm/drm_internal.h" 106#include "dev/drm/drm_linux_list.h" 107 108#include <opt_drm.h> 109#ifdef DRM_DEBUG 110#undef DRM_DEBUG 111#define DRM_DEBUG_DEFAULT_ON 1 112#endif /* DRM_DEBUG */ 113 114#if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__) 115#include <sys/file.h> 116#include <sys/proc.h> 117#include <machine/../linux/linux.h> 118#include <machine/../linux/linux_proto.h> 119#else 120/* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't 121 * supported on this OS yet. 122 */ 123#undef DRM_LINUX 124#define DRM_LINUX 0 125#endif 126 127/* driver capabilities and requirements mask */ 128#define DRIVER_USE_AGP 0x1 129#define DRIVER_REQUIRE_AGP 0x2 130#define DRIVER_USE_MTRR 0x4 131#define DRIVER_PCI_DMA 0x8 132#define DRIVER_SG 0x10 133#define DRIVER_HAVE_DMA 0x20 134#define DRIVER_HAVE_IRQ 0x40 135#define DRIVER_DMA_QUEUE 0x100 136 137 138#define DRM_HASH_SIZE 16 /* Size of key hash table */ 139#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 140#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 141 142MALLOC_DECLARE(DRM_MEM_DMA); 143MALLOC_DECLARE(DRM_MEM_SAREA); 144MALLOC_DECLARE(DRM_MEM_DRIVER); 145MALLOC_DECLARE(DRM_MEM_MAGIC); 146MALLOC_DECLARE(DRM_MEM_IOCTLS); 147MALLOC_DECLARE(DRM_MEM_MAPS); 148MALLOC_DECLARE(DRM_MEM_BUFS); 149MALLOC_DECLARE(DRM_MEM_SEGS); 150MALLOC_DECLARE(DRM_MEM_PAGES); 151MALLOC_DECLARE(DRM_MEM_FILES); 152MALLOC_DECLARE(DRM_MEM_QUEUES); 153MALLOC_DECLARE(DRM_MEM_CMDS); 154MALLOC_DECLARE(DRM_MEM_MAPPINGS); 155MALLOC_DECLARE(DRM_MEM_BUFLISTS); 156MALLOC_DECLARE(DRM_MEM_AGPLISTS); 157MALLOC_DECLARE(DRM_MEM_CTXBITMAP); 158MALLOC_DECLARE(DRM_MEM_SGLISTS); 159MALLOC_DECLARE(DRM_MEM_DRAWABLE); 160MALLOC_DECLARE(DRM_MEM_MM); 161MALLOC_DECLARE(DRM_MEM_HASHTAB); 162 163SYSCTL_DECL(_hw_drm); 164 165#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 166 167 /* Internal types and structures */ 168#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 169#define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 170#define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 171 172#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 173 174#define __OS_HAS_AGP 1 175 176#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 177#define DRM_DEV_UID 0 178#define DRM_DEV_GID 0 179 180#define wait_queue_head_t atomic_t 181#define DRM_WAKEUP(w) wakeup((void *)w) 182#define DRM_WAKEUP_INT(w) wakeup(w) 183#define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 184 185#define DRM_CURPROC curthread 186#define DRM_STRUCTPROC struct thread 187#define DRM_SPINTYPE struct mtx 188#define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF) 189#define DRM_SPINUNINIT(l) mtx_destroy(l) 190#define DRM_SPINLOCK(l) mtx_lock(l) 191#define DRM_SPINUNLOCK(u) mtx_unlock(u) 192#define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \ 193 mtx_lock(l); \ 194 (void)irqflags; \ 195} while (0) 196#define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u) 197#define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 198#define DRM_CURRENTPID curthread->td_proc->p_pid 199#define DRM_LOCK() mtx_lock(&dev->dev_lock) 200#define DRM_UNLOCK() mtx_unlock(&dev->dev_lock) 201#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 202 203#define DRM_IRQ_ARGS void *arg 204typedef void irqreturn_t; 205#define IRQ_HANDLED /* nothing */ 206#define IRQ_NONE /* nothing */ 207 208#define unlikely(x) __builtin_expect(!!(x), 0) 209#define container_of(ptr, type, member) ({ \ 210 __typeof( ((type *)0)->member ) *__mptr = (ptr); \ 211 (type *)( (char *)__mptr - offsetof(type,member) );}) 212 213enum { 214 DRM_IS_NOT_AGP, 215 DRM_IS_AGP, 216 DRM_MIGHT_BE_AGP 217}; 218#define DRM_AGP_MEM struct agp_memory_info 219 220#define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 221 222#define PAGE_ALIGN(addr) round_page(addr) 223/* DRM_SUSER returns true if the user is superuser */ 224#if __FreeBSD_version >= 700000 225#define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 226#else 227#define DRM_SUSER(p) (suser(p) == 0) 228#endif 229#define DRM_AGP_FIND_DEVICE() agp_find_device() 230#define DRM_MTRR_WC MDF_WRITECOMBINE 231#define jiffies ticks 232 233typedef vm_paddr_t dma_addr_t; 234typedef u_int64_t u64; 235typedef u_int32_t u32; 236typedef u_int16_t u16; 237typedef u_int8_t u8; 238 239/* DRM_READMEMORYBARRIER() prevents reordering of reads. 240 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 241 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 242 */ 243#define DRM_READMEMORYBARRIER() rmb() 244#define DRM_WRITEMEMORYBARRIER() wmb() 245#define DRM_MEMORYBARRIER() mb() 246 247#define DRM_READ8(map, offset) \ 248 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 249 (vm_offset_t)(offset)) 250#define DRM_READ16(map, offset) \ 251 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 252 (vm_offset_t)(offset))) 253#define DRM_READ32(map, offset) \ 254 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 255 (vm_offset_t)(offset))) 256#define DRM_WRITE8(map, offset, val) \ 257 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 258 (vm_offset_t)(offset)) = val 259#define DRM_WRITE16(map, offset, val) \ 260 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 261 (vm_offset_t)(offset)) = htole16(val) 262#define DRM_WRITE32(map, offset, val) \ 263 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 264 (vm_offset_t)(offset)) = htole32(val) 265 266#define DRM_VERIFYAREA_READ( uaddr, size ) \ 267 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 268 269#define DRM_COPY_TO_USER(user, kern, size) \ 270 copyout(kern, user, size) 271#define DRM_COPY_FROM_USER(kern, user, size) \ 272 copyin(user, kern, size) 273#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 274 copyin(arg2, arg1, arg3) 275#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 276 copyout(arg2, arg1, arg3) 277#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 278 ((val) = fuword32(uaddr), 0) 279 280#define cpu_to_le32(x) htole32(x) 281#define le32_to_cpu(x) le32toh(x) 282 283#define DRM_HZ hz 284#define DRM_UDELAY(udelay) DELAY(udelay) 285#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ 286 287#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 288 (_map) = (_dev)->context_sareas[_ctx]; \ 289} while(0) 290 291#define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 292do { \ 293 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 294 dev->lock.file_priv != file_priv) { \ 295 DRM_ERROR("%s called without lock held\n", \ 296 __FUNCTION__); \ 297 return EINVAL; \ 298 } \ 299} while (0) 300 301/* Returns -errno to shared code */ 302#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 303for ( ret = 0 ; !ret && !(condition) ; ) { \ 304 DRM_UNLOCK(); \ 305 mtx_lock(&dev->irq_lock); \ 306 if (!(condition)) \ 307 ret = -mtx_sleep(&(queue), &dev->irq_lock, \ 308 PCATCH, "drmwtq", (timeout)); \ 309 mtx_unlock(&dev->irq_lock); \ 310 DRM_LOCK(); \ 311} 312 313#define DRM_ERROR(fmt, ...) \ 314 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 315 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 316 317#define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 318 319#define DRM_DEBUG(fmt, ...) do { \ 320 if (drm_debug_flag) \ 321 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 322 __func__ , ##__VA_ARGS__); \ 323} while (0) 324 325typedef struct drm_pci_id_list 326{ 327 int vendor; 328 int device; 329 long driver_private; 330 char *name; 331} drm_pci_id_list_t; 332 333struct drm_msi_blacklist_entry 334{ 335 int vendor; 336 int device; 337}; 338 339#define DRM_AUTH 0x1 340#define DRM_MASTER 0x2 341#define DRM_ROOT_ONLY 0x4 342typedef struct drm_ioctl_desc { 343 unsigned long cmd; 344 int (*func)(struct drm_device *dev, void *data, 345 struct drm_file *file_priv); 346 int flags; 347} drm_ioctl_desc_t; 348/** 349 * Creates a driver or general drm_ioctl_desc array entry for the given 350 * ioctl, for use by drm_ioctl(). 351 */ 352#define DRM_IOCTL_DEF(ioctl, func, flags) \ 353 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 354 355typedef struct drm_magic_entry { 356 drm_magic_t magic; 357 struct drm_file *priv; 358 struct drm_magic_entry *next; 359} drm_magic_entry_t; 360 361typedef struct drm_magic_head { 362 struct drm_magic_entry *head; 363 struct drm_magic_entry *tail; 364} drm_magic_head_t; 365 366typedef struct drm_buf { 367 int idx; /* Index into master buflist */ 368 int total; /* Buffer size */ 369 int order; /* log-base-2(total) */ 370 int used; /* Amount of buffer in use (for DMA) */ 371 unsigned long offset; /* Byte offset (used internally) */ 372 void *address; /* Address of buffer */ 373 unsigned long bus_address; /* Bus address of buffer */ 374 struct drm_buf *next; /* Kernel-only: used for free list */ 375 __volatile__ int pending; /* On hardware DMA queue */ 376 struct drm_file *file_priv; /* Unique identifier of holding process */ 377 int context; /* Kernel queue for this buffer */ 378 enum { 379 DRM_LIST_NONE = 0, 380 DRM_LIST_FREE = 1, 381 DRM_LIST_WAIT = 2, 382 DRM_LIST_PEND = 3, 383 DRM_LIST_PRIO = 4, 384 DRM_LIST_RECLAIM = 5 385 } list; /* Which list we're on */ 386 387 int dev_priv_size; /* Size of buffer private stoarge */ 388 void *dev_private; /* Per-buffer private storage */ 389} drm_buf_t; 390 391typedef struct drm_freelist { 392 int initialized; /* Freelist in use */ 393 atomic_t count; /* Number of free buffers */ 394 drm_buf_t *next; /* End pointer */ 395 396 int low_mark; /* Low water mark */ 397 int high_mark; /* High water mark */ 398} drm_freelist_t; 399 400typedef struct drm_dma_handle { 401 void *vaddr; 402 bus_addr_t busaddr; 403 bus_dma_tag_t tag; 404 bus_dmamap_t map; 405} drm_dma_handle_t; 406 407typedef struct drm_buf_entry { 408 int buf_size; 409 int buf_count; 410 drm_buf_t *buflist; 411 int seg_count; 412 drm_dma_handle_t **seglist; 413 int page_order; 414 415 drm_freelist_t freelist; 416} drm_buf_entry_t; 417 418typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 419struct drm_file { 420 TAILQ_ENTRY(drm_file) link; 421 struct drm_device *dev; 422 int authenticated; 423 int master; 424 pid_t pid; 425 uid_t uid; 426 drm_magic_t magic; 427 unsigned long ioctl_count; 428 void *driver_priv; 429}; 430 431typedef struct drm_lock_data { 432 struct drm_hw_lock *hw_lock; /* Hardware lock */ 433 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/ 434 int lock_queue; /* Queue of blocked processes */ 435 unsigned long lock_time; /* Time of last lock in jiffies */ 436} drm_lock_data_t; 437 438/* This structure, in the struct drm_device, is always initialized while the 439 * device 440 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 441 * when set marks that no further bufs may be allocated until device teardown 442 * occurs (when the last open of the device has closed). The high/low 443 * watermarks of bufs are only touched by the X Server, and thus not 444 * concurrently accessed, so no locking is needed. 445 */ 446typedef struct drm_device_dma { 447 drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; 448 int buf_count; 449 drm_buf_t **buflist; /* Vector of pointers info bufs */ 450 int seg_count; 451 int page_count; 452 unsigned long *pagelist; 453 unsigned long byte_count; 454 enum { 455 _DRM_DMA_USE_AGP = 0x01, 456 _DRM_DMA_USE_SG = 0x02 457 } flags; 458} drm_device_dma_t; 459 460typedef struct drm_agp_mem { 461 void *handle; 462 unsigned long bound; /* address */ 463 int pages; 464 struct drm_agp_mem *prev; 465 struct drm_agp_mem *next; 466} drm_agp_mem_t; 467 468typedef struct drm_agp_head { 469 device_t agpdev; 470 struct agp_info info; 471 const char *chipset; 472 drm_agp_mem_t *memory; 473 unsigned long mode; 474 int enabled; 475 int acquired; 476 unsigned long base; 477 int mtrr; 478 int cant_use_aperture; 479 unsigned long page_mask; 480} drm_agp_head_t; 481 482typedef struct drm_sg_mem { 483 vm_offset_t vaddr; 484 vm_paddr_t *busaddr; 485 vm_pindex_t pages; 486} drm_sg_mem_t; 487 488#define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 489#define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 490typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; 491 492typedef struct drm_local_map { 493 unsigned long offset; /* Physical address (0 for SAREA) */ 494 unsigned long size; /* Physical size (bytes) */ 495 enum drm_map_type type; /* Type of memory mapped */ 496 enum drm_map_flags flags; /* Flags */ 497 void *handle; /* User-space: "Handle" to pass to mmap */ 498 /* Kernel-space: kernel-virtual address */ 499 int mtrr; /* Boolean: MTRR used */ 500 /* Private data */ 501 int rid; /* PCI resource ID for bus_space */ 502 void *virtual; /* Kernel-space: kernel-virtual address */ 503 struct resource *bsr; 504 bus_space_tag_t bst; 505 bus_space_handle_t bsh; 506 drm_dma_handle_t *dmah; 507 TAILQ_ENTRY(drm_local_map) link; 508} drm_local_map_t; 509 510struct drm_vblank_info { 511 wait_queue_head_t queue; /* vblank wait queue */ 512 atomic_t count; /* number of VBLANK interrupts */ 513 /* (driver must alloc the right number of counters) */ 514 atomic_t refcount; /* number of users of vblank interrupts */ 515 u32 last; /* protected by dev->vbl_lock, used */ 516 /* for wraparound handling */ 517 int enabled; /* so we don't call enable more than */ 518 /* once per disable */ 519 int inmodeset; /* Display driver is setting mode */ 520}; 521 522/* location of GART table */ 523#define DRM_ATI_GART_MAIN 1 524#define DRM_ATI_GART_FB 2 525 526#define DRM_ATI_GART_PCI 1 527#define DRM_ATI_GART_PCIE 2 528#define DRM_ATI_GART_IGP 3 529 530struct drm_ati_pcigart_info { 531 int gart_table_location; 532 int gart_reg_if; 533 void *addr; 534 dma_addr_t bus_addr; 535 dma_addr_t table_mask; 536 dma_addr_t member_mask; 537 struct drm_dma_handle *table_handle; 538 drm_local_map_t mapping; 539 int table_size; 540 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 541}; 542 543#ifndef DMA_BIT_MASK 544#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 545#endif 546 547#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 548 549struct drm_driver_info { 550 int (*load)(struct drm_device *, unsigned long flags); 551 int (*firstopen)(struct drm_device *); 552 int (*open)(struct drm_device *, struct drm_file *); 553 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 554 void (*postclose)(struct drm_device *, struct drm_file *); 555 void (*lastclose)(struct drm_device *); 556 int (*unload)(struct drm_device *); 557 void (*reclaim_buffers_locked)(struct drm_device *, 558 struct drm_file *file_priv); 559 int (*dma_ioctl)(struct drm_device *dev, void *data, 560 struct drm_file *file_priv); 561 void (*dma_ready)(struct drm_device *); 562 int (*dma_quiescent)(struct drm_device *); 563 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 564 enum drm_lock_flags flags); 565 int (*dma_flush_unblock)(struct drm_device *, int context, 566 enum drm_lock_flags flags); 567 int (*context_ctor)(struct drm_device *dev, int context); 568 int (*context_dtor)(struct drm_device *dev, int context); 569 int (*kernel_context_switch)(struct drm_device *dev, int old, 570 int new); 571 int (*kernel_context_switch_unlock)(struct drm_device *dev); 572 void (*irq_preinstall)(struct drm_device *dev); 573 int (*irq_postinstall)(struct drm_device *dev); 574 void (*irq_uninstall)(struct drm_device *dev); 575 void (*irq_handler)(DRM_IRQ_ARGS); 576 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 577 int (*enable_vblank)(struct drm_device *dev, int crtc); 578 void (*disable_vblank)(struct drm_device *dev, int crtc); 579 580 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 581 582 /** 583 * Called by \c drm_device_is_agp. Typically used to determine if a 584 * card is really attached to AGP or not. 585 * 586 * \param dev DRM device handle 587 * 588 * \returns 589 * One of three values is returned depending on whether or not the 590 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 591 * (return of 1), or may or may not be AGP (return of 2). 592 */ 593 int (*device_is_agp) (struct drm_device * dev); 594 595 drm_ioctl_desc_t *ioctls; 596 int max_ioctl; 597 598 int buf_priv_size; 599 600 int major; 601 int minor; 602 int patchlevel; 603 const char *name; /* Simple driver name */ 604 const char *desc; /* Longer driver name */ 605 const char *date; /* Date of last major changes. */ 606 607 u32 driver_features; 608}; 609 610/* Length for the array of resource pointers for drm_get_resource_*. */ 611#define DRM_MAX_PCI_RESOURCE 6 612 613/** 614 * DRM device functions structure 615 */ 616struct drm_device { 617 struct drm_driver_info *driver; 618 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 619 620 u_int16_t pci_device; /* PCI device id */ 621 u_int16_t pci_vendor; /* PCI vendor id */ 622 623 char *unique; /* Unique identifier: e.g., busid */ 624 int unique_len; /* Length of unique field */ 625 device_t device; /* Device instance from newbus */ 626 struct cdev *devnode; /* Device number for mknod */ 627 int if_version; /* Highest interface version set */ 628 629 int flags; /* Flags to open(2) */ 630 631 /* Locks */ 632 struct mtx vbl_lock; /* protects vblank operations */ 633 struct mtx dma_lock; /* protects dev->dma */ 634 struct mtx irq_lock; /* protects irq condition checks */ 635 struct mtx dev_lock; /* protects everything else */ 636 DRM_SPINTYPE drw_lock; 637 638 /* Usage Counters */ 639 int open_count; /* Outstanding files open */ 640 int buf_use; /* Buffers in use -- cannot alloc */ 641 642 /* Performance counters */ 643 unsigned long counters; 644 enum drm_stat_type types[15]; 645 atomic_t counts[15]; 646 647 /* Authentication */ 648 drm_file_list_t files; 649 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 650 651 /* Linked list of mappable regions. Protected by dev_lock */ 652 drm_map_list_t maplist; 653 struct unrhdr *map_unrhdr; 654 655 drm_local_map_t **context_sareas; 656 int max_context; 657 658 drm_lock_data_t lock; /* Information on hardware lock */ 659 660 /* DMA queues (contexts) */ 661 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 662 663 /* Context support */ 664 int irq; /* Interrupt used by board */ 665 int irq_enabled; /* True if the irq handler is enabled */ 666 int msi_enabled; /* MSI enabled */ 667 int irqrid; /* Interrupt used by board */ 668 struct resource *irqr; /* Resource for interrupt used by board */ 669 void *irqh; /* Handle from bus_setup_intr */ 670 671 /* Storage of resource pointers for drm_get_resource_* */ 672 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 673 int pcirid[DRM_MAX_PCI_RESOURCE]; 674 675 int pci_domain; 676 int pci_bus; 677 int pci_slot; 678 int pci_func; 679 680 atomic_t context_flag; /* Context swapping flag */ 681 int last_context; /* Last current context */ 682 683 int vblank_disable_allowed; 684 struct callout vblank_disable_timer; 685 u32 max_vblank_count; /* size of vblank counter register */ 686 struct drm_vblank_info *vblank; /* per crtc vblank info */ 687 int num_crtcs; 688 689 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 690 691 /* Sysctl support */ 692 struct drm_sysctl_info *sysctl; 693 694 drm_agp_head_t *agp; 695 drm_sg_mem_t *sg; /* Scatter gather memory */ 696 atomic_t *ctx_bitmap; 697 void *dev_private; 698 unsigned int agp_buffer_token; 699 drm_local_map_t *agp_buffer_map; 700 701 struct unrhdr *drw_unrhdr; 702 /* RB tree of drawable infos */ 703 RB_HEAD(drawable_tree, bsd_drm_drawable_info) drw_head; 704}; 705 706static __inline__ int drm_core_check_feature(struct drm_device *dev, 707 int feature) 708{ 709 return ((dev->driver->driver_features & feature) ? 1 : 0); 710} 711 712#if __OS_HAS_AGP 713static inline int drm_core_has_AGP(struct drm_device *dev) 714{ 715 return drm_core_check_feature(dev, DRIVER_USE_AGP); 716} 717#else 718#define drm_core_has_AGP(dev) (0) 719#endif 720 721extern int drm_debug_flag; 722 723/* Device setup support (drm_drv.c) */ 724int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 725int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 726void drm_close(void *data); 727int drm_detach(device_t kdev); 728d_ioctl_t drm_ioctl; 729d_open_t drm_open; 730d_read_t drm_read; 731d_poll_t drm_poll; 732d_mmap_t drm_mmap; 733extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 734 735/* File operations helpers (drm_fops.c) */ 736extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 737 DRM_STRUCTPROC *p, 738 struct drm_device *dev); 739 740/* Memory management support (drm_memory.c) */ 741void drm_mem_init(void); 742void drm_mem_uninit(void); 743void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 744void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 745void drm_ioremapfree(drm_local_map_t *map); 746int drm_mtrr_add(unsigned long offset, size_t size, int flags); 747int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 748 749int drm_context_switch(struct drm_device *dev, int old, int new); 750int drm_context_switch_complete(struct drm_device *dev, int new); 751 752int drm_ctxbitmap_init(struct drm_device *dev); 753void drm_ctxbitmap_cleanup(struct drm_device *dev); 754void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 755int drm_ctxbitmap_next(struct drm_device *dev); 756 757/* Locking IOCTL support (drm_lock.c) */ 758int drm_lock_take(struct drm_lock_data *lock_data, 759 unsigned int context); 760int drm_lock_transfer(struct drm_lock_data *lock_data, 761 unsigned int context); 762int drm_lock_free(struct drm_lock_data *lock_data, 763 unsigned int context); 764 765/* Buffer management support (drm_bufs.c) */ 766unsigned long drm_get_resource_start(struct drm_device *dev, 767 unsigned int resource); 768unsigned long drm_get_resource_len(struct drm_device *dev, 769 unsigned int resource); 770void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 771int drm_order(unsigned long size); 772int drm_addmap(struct drm_device *dev, unsigned long offset, 773 unsigned long size, 774 enum drm_map_type type, enum drm_map_flags flags, 775 drm_local_map_t **map_ptr); 776int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 777int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request); 778int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 779 780/* DMA support (drm_dma.c) */ 781int drm_dma_setup(struct drm_device *dev); 782void drm_dma_takedown(struct drm_device *dev); 783void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 784void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 785#define drm_core_reclaim_buffers drm_reclaim_buffers 786 787/* IRQ support (drm_irq.c) */ 788int drm_irq_install(struct drm_device *dev); 789int drm_irq_uninstall(struct drm_device *dev); 790irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 791void drm_driver_irq_preinstall(struct drm_device *dev); 792void drm_driver_irq_postinstall(struct drm_device *dev); 793void drm_driver_irq_uninstall(struct drm_device *dev); 794void drm_handle_vblank(struct drm_device *dev, int crtc); 795u32 drm_vblank_count(struct drm_device *dev, int crtc); 796int drm_vblank_get(struct drm_device *dev, int crtc); 797void drm_vblank_put(struct drm_device *dev, int crtc); 798void drm_vblank_cleanup(struct drm_device *dev); 799int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 800int drm_vblank_init(struct drm_device *dev, int num_crtcs); 801int drm_modeset_ctl(struct drm_device *dev, void *data, 802 struct drm_file *file_priv); 803 804/* AGP/PCI Express/GART support (drm_agpsupport.c) */ 805int drm_device_is_agp(struct drm_device *dev); 806int drm_device_is_pcie(struct drm_device *dev); 807drm_agp_head_t *drm_agp_init(void); 808int drm_agp_acquire(struct drm_device *dev); 809int drm_agp_release(struct drm_device *dev); 810int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 811int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 812void *drm_agp_allocate_memory(size_t pages, u32 type); 813int drm_agp_free_memory(void *handle); 814int drm_agp_bind_memory(void *handle, off_t start); 815int drm_agp_unbind_memory(void *handle); 816int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 817int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 818int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 819int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 820 821/* Scatter Gather Support (drm_scatter.c) */ 822void drm_sg_cleanup(drm_sg_mem_t *entry); 823int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 824 825/* sysctl support (drm_sysctl.h) */ 826extern int drm_sysctl_init(struct drm_device *dev); 827extern int drm_sysctl_cleanup(struct drm_device *dev); 828 829/* ATI PCIGART support (ati_pcigart.c) */ 830int drm_ati_pcigart_init(struct drm_device *dev, 831 struct drm_ati_pcigart_info *gart_info); 832int drm_ati_pcigart_cleanup(struct drm_device *dev, 833 struct drm_ati_pcigart_info *gart_info); 834 835/* Locking IOCTL support (drm_drv.c) */ 836int drm_lock(struct drm_device *dev, void *data, 837 struct drm_file *file_priv); 838int drm_unlock(struct drm_device *dev, void *data, 839 struct drm_file *file_priv); 840int drm_version(struct drm_device *dev, void *data, 841 struct drm_file *file_priv); 842int drm_setversion(struct drm_device *dev, void *data, 843 struct drm_file *file_priv); 844 845/* Misc. IOCTL support (drm_ioctl.c) */ 846int drm_irq_by_busid(struct drm_device *dev, void *data, 847 struct drm_file *file_priv); 848int drm_getunique(struct drm_device *dev, void *data, 849 struct drm_file *file_priv); 850int drm_setunique(struct drm_device *dev, void *data, 851 struct drm_file *file_priv); 852int drm_getmap(struct drm_device *dev, void *data, 853 struct drm_file *file_priv); 854int drm_getclient(struct drm_device *dev, void *data, 855 struct drm_file *file_priv); 856int drm_getstats(struct drm_device *dev, void *data, 857 struct drm_file *file_priv); 858int drm_noop(struct drm_device *dev, void *data, 859 struct drm_file *file_priv); 860 861/* Context IOCTL support (drm_context.c) */ 862int drm_resctx(struct drm_device *dev, void *data, 863 struct drm_file *file_priv); 864int drm_addctx(struct drm_device *dev, void *data, 865 struct drm_file *file_priv); 866int drm_modctx(struct drm_device *dev, void *data, 867 struct drm_file *file_priv); 868int drm_getctx(struct drm_device *dev, void *data, 869 struct drm_file *file_priv); 870int drm_switchctx(struct drm_device *dev, void *data, 871 struct drm_file *file_priv); 872int drm_newctx(struct drm_device *dev, void *data, 873 struct drm_file *file_priv); 874int drm_rmctx(struct drm_device *dev, void *data, 875 struct drm_file *file_priv); 876int drm_setsareactx(struct drm_device *dev, void *data, 877 struct drm_file *file_priv); 878int drm_getsareactx(struct drm_device *dev, void *data, 879 struct drm_file *file_priv); 880 881/* Drawable IOCTL support (drm_drawable.c) */ 882int drm_adddraw(struct drm_device *dev, void *data, 883 struct drm_file *file_priv); 884int drm_rmdraw(struct drm_device *dev, void *data, 885 struct drm_file *file_priv); 886int drm_update_draw(struct drm_device *dev, void *data, 887 struct drm_file *file_priv); 888struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, 889 int handle); 890 891/* Drawable support (drm_drawable.c) */ 892void drm_drawable_free_all(struct drm_device *dev); 893 894/* Authentication IOCTL support (drm_auth.c) */ 895int drm_getmagic(struct drm_device *dev, void *data, 896 struct drm_file *file_priv); 897int drm_authmagic(struct drm_device *dev, void *data, 898 struct drm_file *file_priv); 899 900/* Buffer management support (drm_bufs.c) */ 901int drm_addmap_ioctl(struct drm_device *dev, void *data, 902 struct drm_file *file_priv); 903int drm_rmmap_ioctl(struct drm_device *dev, void *data, 904 struct drm_file *file_priv); 905int drm_addbufs(struct drm_device *dev, void *data, 906 struct drm_file *file_priv); 907int drm_infobufs(struct drm_device *dev, void *data, 908 struct drm_file *file_priv); 909int drm_markbufs(struct drm_device *dev, void *data, 910 struct drm_file *file_priv); 911int drm_freebufs(struct drm_device *dev, void *data, 912 struct drm_file *file_priv); 913int drm_mapbufs(struct drm_device *dev, void *data, 914 struct drm_file *file_priv); 915 916/* DMA support (drm_dma.c) */ 917int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 918 919/* IRQ support (drm_irq.c) */ 920int drm_control(struct drm_device *dev, void *data, 921 struct drm_file *file_priv); 922int drm_wait_vblank(struct drm_device *dev, void *data, 923 struct drm_file *file_priv); 924 925/* AGP/GART support (drm_agpsupport.c) */ 926int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 927 struct drm_file *file_priv); 928int drm_agp_release_ioctl(struct drm_device *dev, void *data, 929 struct drm_file *file_priv); 930int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 931 struct drm_file *file_priv); 932int drm_agp_info_ioctl(struct drm_device *dev, void *data, 933 struct drm_file *file_priv); 934int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 935 struct drm_file *file_priv); 936int drm_agp_free_ioctl(struct drm_device *dev, void *data, 937 struct drm_file *file_priv); 938int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 939 struct drm_file *file_priv); 940int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 941 struct drm_file *file_priv); 942 943/* Scatter Gather Support (drm_scatter.c) */ 944int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 945 struct drm_file *file_priv); 946int drm_sg_free(struct drm_device *dev, void *data, 947 struct drm_file *file_priv); 948 949/* consistent PCI memory functions (drm_pci.c) */ 950drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 951 size_t align, dma_addr_t maxaddr); 952void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 953 954/* Inline replacements for drm_alloc and friends */ 955static __inline__ void * 956drm_alloc(size_t size, struct malloc_type *area) 957{ 958 return malloc(size, area, M_NOWAIT); 959} 960 961static __inline__ void * 962drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 963{ 964 return malloc(size * nmemb, area, M_NOWAIT | M_ZERO); 965} 966 967static __inline__ void * 968drm_realloc(void *oldpt, size_t oldsize, size_t size, 969 struct malloc_type *area) 970{ 971 return reallocf(oldpt, size, area, M_NOWAIT); 972} 973 974static __inline__ void 975drm_free(void *pt, size_t size, struct malloc_type *area) 976{ 977 free(pt, area); 978} 979 980/* Inline replacements for DRM_IOREMAP macros */ 981static __inline__ void 982drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 983{ 984 map->virtual = drm_ioremap_wc(dev, map); 985} 986static __inline__ void 987drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 988{ 989 map->virtual = drm_ioremap(dev, map); 990} 991static __inline__ void 992drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 993{ 994 if ( map->virtual && map->size ) 995 drm_ioremapfree(map); 996} 997 998static __inline__ struct drm_local_map * 999drm_core_findmap(struct drm_device *dev, unsigned long offset) 1000{ 1001 drm_local_map_t *map; 1002 1003 DRM_SPINLOCK_ASSERT(&dev->dev_lock); 1004 TAILQ_FOREACH(map, &dev->maplist, link) { 1005 if (offset == (unsigned long)map->handle) 1006 return map; 1007 } 1008 return NULL; 1009} 1010 1011static __inline__ void drm_core_dropmap(struct drm_map *map) 1012{ 1013} 1014 1015#endif /* __KERNEL__ */ 1016#endif /* _DRM_P_H_ */ 1017