drmP.h revision 282199
1/** 2 * \file drmP.h 3 * Private header for Direct Rendering Manager 4 * 5 * \author Rickard E. (Rik) Faith <faith@valinux.com> 6 * \author Gareth Hughes <gareth@valinux.com> 7 */ 8 9/* 10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 12 * Copyright (c) 2009-2010, Code Aurora Forum. 13 * All rights reserved. 14 * 15 * Permission is hereby granted, free of charge, to any person obtaining a 16 * copy of this software and associated documentation files (the "Software"), 17 * to deal in the Software without restriction, including without limitation 18 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 19 * and/or sell copies of the Software, and to permit persons to whom the 20 * Software is furnished to do so, subject to the following conditions: 21 * 22 * The above copyright notice and this permission notice (including the next 23 * paragraph) shall be included in all copies or substantial portions of the 24 * Software. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 29 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 30 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 31 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 32 * OTHER DEALINGS IN THE SOFTWARE. 33 */ 34 35#include <sys/cdefs.h> 36__FBSDID("$FreeBSD: stable/10/sys/dev/drm2/drmP.h 282199 2015-04-28 19:35:05Z dumbbell $"); 37 38#ifndef _DRM_P_H_ 39#define _DRM_P_H_ 40 41#if defined(_KERNEL) || defined(__KERNEL__) 42 43#include <sys/param.h> 44#include <sys/queue.h> 45#include <sys/malloc.h> 46#include <sys/kernel.h> 47#include <sys/ktr.h> 48#include <sys/module.h> 49#include <sys/systm.h> 50#include <sys/conf.h> 51#include <sys/sglist.h> 52#include <sys/stat.h> 53#include <sys/priv.h> 54#include <sys/proc.h> 55#include <sys/lock.h> 56#include <sys/fcntl.h> 57#include <sys/uio.h> 58#include <sys/filio.h> 59#include <sys/rwlock.h> 60#include <sys/selinfo.h> 61#include <sys/sysctl.h> 62#include <sys/bus.h> 63#include <sys/queue.h> 64#include <sys/signalvar.h> 65#include <sys/poll.h> 66#include <sys/sbuf.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#include <dev/agp/agpvar.h> 92#include <sys/agpio.h> 93#include <sys/mutex.h> 94#include <dev/pci/pcivar.h> 95#include <dev/pci/pcireg.h> 96#include <sys/selinfo.h> 97#include <sys/bus.h> 98 99#include <dev/drm2/drm.h> 100#include <dev/drm2/drm_sarea.h> 101 102#include <dev/drm2/drm_atomic.h> 103#include <dev/drm2/drm_linux_list.h> 104#include <dev/drm2/drm_gem_names.h> 105 106#include <dev/drm2/drm_os_freebsd.h> 107 108#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))) 109#define __OS_HAS_MTRR (defined(CONFIG_MTRR)) 110 111struct drm_file; 112struct drm_device; 113 114#include <dev/drm2/drm_hashtab.h> 115#include <dev/drm2/drm_mm.h> 116 117#include "opt_compat.h" 118#include "opt_drm.h" 119#include "opt_syscons.h" 120#ifdef DRM_DEBUG 121#undef DRM_DEBUG 122#define DRM_DEBUG_DEFAULT_ON 1 123#endif /* DRM_DEBUG */ 124 125#define DRM_DEBUGBITS_DEBUG 0x1 126#define DRM_DEBUGBITS_KMS 0x2 127#define DRM_DEBUGBITS_FAILED_IOCTL 0x4 128 129#undef DRM_LINUX 130#define DRM_LINUX 0 131 132/***********************************************************************/ 133/** \name DRM template customization defaults */ 134/*@{*/ 135 136/* driver capabilities and requirements mask */ 137#define DRIVER_USE_AGP 0x1 138#define DRIVER_REQUIRE_AGP 0x2 139#define DRIVER_USE_MTRR 0x4 140#define DRIVER_PCI_DMA 0x8 141#define DRIVER_SG 0x10 142#define DRIVER_HAVE_DMA 0x20 143#define DRIVER_HAVE_IRQ 0x40 144#define DRIVER_IRQ_SHARED 0x80 145#define DRIVER_IRQ_VBL 0x100 146#define DRIVER_DMA_QUEUE 0x200 147#define DRIVER_FB_DMA 0x400 148#define DRIVER_IRQ_VBL2 0x800 149#define DRIVER_GEM 0x1000 150#define DRIVER_MODESET 0x2000 151#define DRIVER_PRIME 0x4000 152 153#define DRIVER_BUS_PCI 0x1 154#define DRIVER_BUS_PLATFORM 0x2 155#define DRIVER_BUS_USB 0x3 156 157/***********************************************************************/ 158/** \name Begin the DRM... */ 159/*@{*/ 160 161#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then 162 also include looping detection. */ 163 164#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ 165#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */ 166#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */ 167#define DRM_LOOPING_LIMIT 5000000 168#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */ 169#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */ 170 171#define DRM_FLAG_DEBUG 0x01 172 173#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 174#define DRM_MAP_HASH_OFFSET 0x10000000 175 176/*@}*/ 177 178/***********************************************************************/ 179/** \name Macros to make printk easier */ 180/*@{*/ 181 182/** 183 * Error output. 184 * 185 * \param fmt printf() like format string. 186 * \param arg arguments 187 */ 188#define DRM_ERROR(fmt, ...) \ 189 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 190 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 191 192#define DRM_WARNING(fmt, ...) printf("warning: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 193#define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 194 195/** 196 * Debug output. 197 * 198 * \param fmt printf() like format string. 199 * \param arg arguments 200 */ 201#define DRM_DEBUG(fmt, ...) do { \ 202 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 203 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 204 __func__ , ##__VA_ARGS__); \ 205} while (0) 206 207#define DRM_DEBUG_KMS(fmt, ...) do { \ 208 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 209 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 210 __func__ , ##__VA_ARGS__); \ 211} while (0) 212 213#define DRM_DEBUG_DRIVER(fmt, ...) do { \ 214 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 215 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 216 __func__ , ##__VA_ARGS__); \ 217} while (0) 218 219/*@}*/ 220 221/***********************************************************************/ 222/** \name Internal types and structures */ 223/*@{*/ 224 225#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x) 226 227#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1)) 228#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x)) 229 230#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 231 232/** 233 * Test that the hardware lock is held by the caller, returning otherwise. 234 * 235 * \param dev DRM device. 236 * \param filp file pointer of the caller. 237 */ 238#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \ 239do { \ 240 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \ 241 _file_priv->master->lock.file_priv != _file_priv) { \ 242 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\ 243 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\ 244 _file_priv->master->lock.file_priv, _file_priv); \ 245 return -EINVAL; \ 246 } \ 247} while (0) 248 249/** 250 * Ioctl function type. 251 * 252 * \param inode device inode. 253 * \param file_priv DRM file private pointer. 254 * \param cmd command. 255 * \param arg argument. 256 */ 257typedef int drm_ioctl_t(struct drm_device *dev, void *data, 258 struct drm_file *file_priv); 259 260#define DRM_IOCTL_NR(n) ((n) & 0xff) 261#define DRM_MAJOR 226 262 263#define DRM_AUTH 0x1 264#define DRM_MASTER 0x2 265#define DRM_ROOT_ONLY 0x4 266#define DRM_CONTROL_ALLOW 0x8 267#define DRM_UNLOCKED 0x10 268 269struct drm_ioctl_desc { 270 unsigned long cmd; 271 int flags; 272 drm_ioctl_t *func; 273 unsigned int cmd_drv; 274}; 275 276/** 277 * Creates a driver or general drm_ioctl_desc array entry for the given 278 * ioctl, for use by drm_ioctl(). 279 */ 280 281#define DRM_IOCTL_DEF(ioctl, _func, _flags) \ 282 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0} 283 284#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 285 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 286 287struct drm_magic_entry { 288 struct list_head head; 289 struct drm_hash_item hash_item; 290 struct drm_file *priv; 291}; 292 293/** 294 * DMA buffer. 295 */ 296struct drm_buf { 297 int idx; /**< Index into master buflist */ 298 int total; /**< Buffer size */ 299 int order; /**< log-base-2(total) */ 300 int used; /**< Amount of buffer in use (for DMA) */ 301 unsigned long offset; /**< Byte offset (used internally) */ 302 void *address; /**< Address of buffer */ 303 unsigned long bus_address; /**< Bus address of buffer */ 304 struct drm_buf *next; /**< Kernel-only: used for free list */ 305 __volatile__ int waiting; /**< On kernel DMA queue */ 306 __volatile__ int pending; /**< On hardware DMA queue */ 307 struct drm_file *file_priv; /**< Private of holding file descr */ 308 int context; /**< Kernel queue for this buffer */ 309 int while_locked; /**< Dispatch this buffer while locked */ 310 enum { 311 DRM_LIST_NONE = 0, 312 DRM_LIST_FREE = 1, 313 DRM_LIST_WAIT = 2, 314 DRM_LIST_PEND = 3, 315 DRM_LIST_PRIO = 4, 316 DRM_LIST_RECLAIM = 5 317 } list; /**< Which list we're on */ 318 319 int dev_priv_size; /**< Size of buffer private storage */ 320 void *dev_private; /**< Per-buffer private storage */ 321}; 322 323struct drm_freelist { 324 int initialized; /**< Freelist in use */ 325 atomic_t count; /**< Number of free buffers */ 326 struct drm_buf *next; /**< End pointer */ 327 328#ifdef FREEBSD_NOTYET 329 wait_queue_head_t waiting; /**< Processes waiting on free bufs */ 330#endif /* defined(FREEBSD_NOTYET) */ 331 int low_mark; /**< Low water mark */ 332 int high_mark; /**< High water mark */ 333#ifdef FREEBSD_NOTYET 334 atomic_t wfh; /**< If waiting for high mark */ 335 spinlock_t lock; 336#endif /* defined(FREEBSD_NOTYET) */ 337}; 338 339typedef struct drm_dma_handle { 340 void *vaddr; 341 bus_addr_t busaddr; 342 bus_dma_tag_t tag; 343 bus_dmamap_t map; 344} drm_dma_handle_t; 345 346/** 347 * Buffer entry. There is one of this for each buffer size order. 348 */ 349struct drm_buf_entry { 350 int buf_size; /**< size */ 351 int buf_count; /**< number of buffers */ 352 struct drm_buf *buflist; /**< buffer list */ 353 int seg_count; 354 int page_order; 355 struct drm_dma_handle **seglist; 356 357 struct drm_freelist freelist; 358}; 359 360/* Event queued up for userspace to read */ 361struct drm_pending_event { 362 struct drm_event *event; 363 struct list_head link; 364 struct drm_file *file_priv; 365 pid_t pid; /* pid of requester, no guarantee it's valid by the time 366 we deliver the event, for tracing only */ 367 void (*destroy)(struct drm_pending_event *event); 368}; 369 370/* initial implementaton using a linked list - todo hashtab */ 371struct drm_prime_file_private { 372 struct list_head head; 373 struct mtx lock; 374}; 375 376struct drm_file { 377 int authenticated; 378 pid_t pid; 379 uid_t uid; 380 drm_magic_t magic; 381 unsigned long ioctl_count; 382 struct list_head lhead; 383 struct drm_minor *minor; 384 unsigned long lock_count; 385 386 void *driver_priv; 387 struct drm_gem_names object_names; 388 389 int is_master; /* this file private is a master for a minor */ 390 struct drm_master *master; /* master this node is currently associated with 391 N.B. not always minor->master */ 392 struct list_head fbs; 393 394 struct selinfo event_poll; 395 struct list_head event_list; 396 int event_space; 397 398 struct drm_prime_file_private prime; 399}; 400 401/** 402 * Lock data. 403 */ 404struct drm_lock_data { 405 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 406 /** Private of lock holder's file (NULL=kernel) */ 407 struct drm_file *file_priv; 408 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 409 unsigned long lock_time; /**< Time of last lock in jiffies */ 410 struct mtx spinlock; 411 uint32_t kernel_waiters; 412 uint32_t user_waiters; 413 int idle_has_lock; 414}; 415 416/** 417 * DMA data. 418 */ 419struct drm_device_dma { 420 421 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 422 int buf_count; /**< total number of buffers */ 423 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 424 int seg_count; 425 int page_count; /**< number of pages */ 426 unsigned long *pagelist; /**< page list */ 427 unsigned long byte_count; 428 enum { 429 _DRM_DMA_USE_AGP = 0x01, 430 _DRM_DMA_USE_SG = 0x02, 431 _DRM_DMA_USE_FB = 0x04, 432 _DRM_DMA_USE_PCI_RO = 0x08 433 } flags; 434 435}; 436 437/** 438 * AGP memory entry. Stored as a doubly linked list. 439 */ 440struct drm_agp_mem { 441 unsigned long handle; /**< handle */ 442 DRM_AGP_MEM *memory; 443 unsigned long bound; /**< address */ 444 int pages; 445 struct list_head head; 446}; 447 448/** 449 * AGP data. 450 * 451 * \sa drm_agp_init() and drm_device::agp. 452 */ 453struct drm_agp_head { 454 DRM_AGP_KERN agp_info; /**< AGP device information */ 455 struct list_head memory; 456 unsigned long mode; /**< AGP mode */ 457 device_t bridge; 458 int enabled; /**< whether the AGP bus as been enabled */ 459 int acquired; /**< whether the AGP device has been acquired */ 460 unsigned long base; 461 int agp_mtrr; 462 int cant_use_aperture; 463}; 464 465/** 466 * Scatter-gather memory. 467 */ 468struct drm_sg_mem { 469 vm_offset_t vaddr; 470 vm_paddr_t *busaddr; 471 vm_pindex_t pages; 472}; 473 474struct drm_sigdata { 475 int context; 476 struct drm_hw_lock *lock; 477}; 478 479/** 480 * Kernel side of a mapping 481 */ 482#define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 483#define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 484 485struct drm_local_map { 486 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 487 unsigned long size; /**< Requested physical size (bytes) */ 488 enum drm_map_type type; /**< Type of memory to map */ 489 enum drm_map_flags flags; /**< Flags */ 490 void *handle; /**< User-space: "Handle" to pass to mmap() */ 491 /**< Kernel-space: kernel-virtual address */ 492 int mtrr; /**< MTRR slot used */ 493 494 /* Private data */ 495 drm_dma_handle_t *dmah; 496}; 497 498typedef struct drm_local_map drm_local_map_t; 499 500/** 501 * Mappings list 502 */ 503struct drm_map_list { 504 struct list_head head; /**< list head */ 505 struct drm_hash_item hash; 506 struct drm_local_map *map; /**< mapping */ 507 uint64_t user_token; 508 struct drm_master *master; 509 struct drm_mm_node *file_offset_node; /**< fake offset */ 510}; 511 512/** 513 * Context handle list 514 */ 515struct drm_ctx_list { 516 struct list_head head; /**< list head */ 517 drm_context_t handle; /**< context handle */ 518 struct drm_file *tag; /**< associated fd private data */ 519}; 520 521/* location of GART table */ 522#define DRM_ATI_GART_MAIN 1 523#define DRM_ATI_GART_FB 2 524 525#define DRM_ATI_GART_PCI 1 526#define DRM_ATI_GART_PCIE 2 527#define DRM_ATI_GART_IGP 3 528 529struct drm_ati_pcigart_info { 530 int gart_table_location; 531 int gart_reg_if; 532 void *addr; 533 dma_addr_t bus_addr; 534 dma_addr_t table_mask; 535 struct drm_dma_handle *table_handle; 536 struct drm_local_map mapping; 537 int table_size; 538 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table FIXME */ 539}; 540 541/** 542 * GEM specific mm private for tracking GEM objects 543 */ 544struct drm_gem_mm { 545 struct unrhdr *idxunr; 546 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 547}; 548 549/** 550 * This structure defines the drm_mm memory object, which will be used by the 551 * DRM for its buffer objects. 552 */ 553struct drm_gem_object { 554 /** Reference count of this object */ 555 u_int refcount; 556 557 /** Handle count of this object. Each handle also holds a reference */ 558 atomic_t handle_count; /* number of handles on this object */ 559 560 /** Related drm device */ 561 struct drm_device *dev; 562 563 /** File representing the shmem storage: filp in Linux parlance */ 564 vm_object_t vm_obj; 565 566 /* Mapping info for this object */ 567 bool on_map; 568 struct drm_hash_item map_list; 569 570 /** 571 * Size of the object, in bytes. Immutable over the object's 572 * lifetime. 573 */ 574 size_t size; 575 576 /** 577 * Global name for this object, starts at 1. 0 means unnamed. 578 * Access is covered by the object_name_lock in the related drm_device 579 */ 580 int name; 581 582 /** 583 * Memory domains. These monitor which caches contain read/write data 584 * related to the object. When transitioning from one set of domains 585 * to another, the driver is called to ensure that caches are suitably 586 * flushed and invalidated 587 */ 588 uint32_t read_domains; 589 uint32_t write_domain; 590 591 /** 592 * While validating an exec operation, the 593 * new read/write domain values are computed here. 594 * They will be transferred to the above values 595 * at the point that any cache flushing occurs 596 */ 597 uint32_t pending_read_domains; 598 uint32_t pending_write_domain; 599 600 void *driver_private; 601 602#ifdef FREEBSD_NOTYET 603 /* dma buf exported from this GEM object */ 604 struct dma_buf *export_dma_buf; 605 606 /* dma buf attachment backing this object */ 607 struct dma_buf_attachment *import_attach; 608#endif /* FREEBSD_NOTYET */ 609}; 610 611#include <dev/drm2/drm_crtc.h> 612 613/* per-master structure */ 614struct drm_master { 615 616 u_int refcount; /* refcount for this master */ 617 618 struct list_head head; /**< each minor contains a list of masters */ 619 struct drm_minor *minor; /**< link back to minor we are a master for */ 620 621 char *unique; /**< Unique identifier: e.g., busid */ 622 int unique_len; /**< Length of unique field */ 623 int unique_size; /**< amount allocated */ 624 625 int blocked; /**< Blocked due to VC switch? */ 626 627 /** \name Authentication */ 628 /*@{ */ 629 struct drm_open_hash magiclist; 630 struct list_head magicfree; 631 /*@} */ 632 633 struct drm_lock_data lock; /**< Information on hardware lock */ 634 635 void *driver_priv; /**< Private structure for driver to use */ 636}; 637 638/* Size of ringbuffer for vblank timestamps. Just double-buffer 639 * in initial implementation. 640 */ 641#define DRM_VBLANKTIME_RBSIZE 2 642 643/* Flags and return codes for get_vblank_timestamp() driver function. */ 644#define DRM_CALLED_FROM_VBLIRQ 1 645#define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 646#define DRM_VBLANKTIME_INVBL (1 << 1) 647 648/* get_scanout_position() return flags */ 649#define DRM_SCANOUTPOS_VALID (1 << 0) 650#define DRM_SCANOUTPOS_INVBL (1 << 1) 651#define DRM_SCANOUTPOS_ACCURATE (1 << 2) 652 653struct drm_bus { 654 int bus_type; 655 int (*get_irq)(struct drm_device *dev); 656 void (*free_irq)(struct drm_device *dev); 657 const char *(*get_name)(struct drm_device *dev); 658 int (*set_busid)(struct drm_device *dev, struct drm_master *master); 659 int (*set_unique)(struct drm_device *dev, struct drm_master *master, 660 struct drm_unique *unique); 661 int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p); 662 /* hooks that are for PCI */ 663 int (*agp_init)(struct drm_device *dev); 664 665}; 666 667/** 668 * DRM driver structure. This structure represent the common code for 669 * a family of cards. There will one drm_device for each card present 670 * in this family 671 */ 672struct drm_driver { 673 int (*load) (struct drm_device *, unsigned long flags); 674 int (*firstopen) (struct drm_device *); 675 int (*open) (struct drm_device *, struct drm_file *); 676 void (*preclose) (struct drm_device *, struct drm_file *file_priv); 677 void (*postclose) (struct drm_device *, struct drm_file *); 678 void (*lastclose) (struct drm_device *); 679 int (*unload) (struct drm_device *); 680 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); 681 int (*dma_quiescent) (struct drm_device *); 682 int (*context_dtor) (struct drm_device *dev, int context); 683 684 /** 685 * get_vblank_counter - get raw hardware vblank counter 686 * @dev: DRM device 687 * @crtc: counter to fetch 688 * 689 * Driver callback for fetching a raw hardware vblank counter for @crtc. 690 * If a device doesn't have a hardware counter, the driver can simply 691 * return the value of drm_vblank_count. The DRM core will account for 692 * missed vblank events while interrupts where disabled based on system 693 * timestamps. 694 * 695 * Wraparound handling and loss of events due to modesetting is dealt 696 * with in the DRM core code. 697 * 698 * RETURNS 699 * Raw vblank counter value. 700 */ 701 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc); 702 703 /** 704 * enable_vblank - enable vblank interrupt events 705 * @dev: DRM device 706 * @crtc: which irq to enable 707 * 708 * Enable vblank interrupts for @crtc. If the device doesn't have 709 * a hardware vblank counter, this routine should be a no-op, since 710 * interrupts will have to stay on to keep the count accurate. 711 * 712 * RETURNS 713 * Zero on success, appropriate errno if the given @crtc's vblank 714 * interrupt cannot be enabled. 715 */ 716 int (*enable_vblank) (struct drm_device *dev, int crtc); 717 718 /** 719 * disable_vblank - disable vblank interrupt events 720 * @dev: DRM device 721 * @crtc: which irq to enable 722 * 723 * Disable vblank interrupts for @crtc. If the device doesn't have 724 * a hardware vblank counter, this routine should be a no-op, since 725 * interrupts will have to stay on to keep the count accurate. 726 */ 727 void (*disable_vblank) (struct drm_device *dev, int crtc); 728 729 /** 730 * Called by \c drm_device_is_agp. Typically used to determine if a 731 * card is really attached to AGP or not. 732 * 733 * \param dev DRM device handle 734 * 735 * \returns 736 * One of three values is returned depending on whether or not the 737 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 738 * (return of 1), or may or may not be AGP (return of 2). 739 */ 740 int (*device_is_agp) (struct drm_device *dev); 741 742 /** 743 * Called by vblank timestamping code. 744 * 745 * Return the current display scanout position from a crtc. 746 * 747 * \param dev DRM device. 748 * \param crtc Id of the crtc to query. 749 * \param *vpos Target location for current vertical scanout position. 750 * \param *hpos Target location for current horizontal scanout position. 751 * 752 * Returns vpos as a positive number while in active scanout area. 753 * Returns vpos as a negative number inside vblank, counting the number 754 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 755 * until start of active scanout / end of vblank." 756 * 757 * \return Flags, or'ed together as follows: 758 * 759 * DRM_SCANOUTPOS_VALID = Query successful. 760 * DRM_SCANOUTPOS_INVBL = Inside vblank. 761 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 762 * this flag means that returned position may be offset by a constant 763 * but unknown small number of scanlines wrt. real scanout position. 764 * 765 */ 766 int (*get_scanout_position) (struct drm_device *dev, int crtc, 767 int *vpos, int *hpos); 768 769 /** 770 * Called by \c drm_get_last_vbltimestamp. Should return a precise 771 * timestamp when the most recent VBLANK interval ended or will end. 772 * 773 * Specifically, the timestamp in @vblank_time should correspond as 774 * closely as possible to the time when the first video scanline of 775 * the video frame after the end of VBLANK will start scanning out, 776 * the time immediately after end of the VBLANK interval. If the 777 * @crtc is currently inside VBLANK, this will be a time in the future. 778 * If the @crtc is currently scanning out a frame, this will be the 779 * past start time of the current scanout. This is meant to adhere 780 * to the OpenML OML_sync_control extension specification. 781 * 782 * \param dev dev DRM device handle. 783 * \param crtc crtc for which timestamp should be returned. 784 * \param *max_error Maximum allowable timestamp error in nanoseconds. 785 * Implementation should strive to provide timestamp 786 * with an error of at most *max_error nanoseconds. 787 * Returns true upper bound on error for timestamp. 788 * \param *vblank_time Target location for returned vblank timestamp. 789 * \param flags 0 = Defaults, no special treatment needed. 790 * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank 791 * irq handler. Some drivers need to apply some workarounds 792 * for gpu-specific vblank irq quirks if flag is set. 793 * 794 * \returns 795 * Zero if timestamping isn't supported in current display mode or a 796 * negative number on failure. A positive status code on success, 797 * which describes how the vblank_time timestamp was computed. 798 */ 799 int (*get_vblank_timestamp) (struct drm_device *dev, int crtc, 800 int *max_error, 801 struct timeval *vblank_time, 802 unsigned flags); 803 804 /* these have to be filled in */ 805 806 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS); 807 void (*irq_preinstall) (struct drm_device *dev); 808 int (*irq_postinstall) (struct drm_device *dev); 809 void (*irq_uninstall) (struct drm_device *dev); 810 void (*set_version) (struct drm_device *dev, 811 struct drm_set_version *sv); 812 813 /* Master routines */ 814 int (*master_create)(struct drm_device *dev, struct drm_master *master); 815 void (*master_destroy)(struct drm_device *dev, struct drm_master *master); 816 /** 817 * master_set is called whenever the minor master is set. 818 * master_drop is called whenever the minor master is dropped. 819 */ 820 821 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, 822 bool from_open); 823 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv, 824 bool from_release); 825 826 /** 827 * Driver-specific constructor for drm_gem_objects, to set up 828 * obj->driver_private. 829 * 830 * Returns 0 on success. 831 */ 832 int (*gem_init_object) (struct drm_gem_object *obj); 833 void (*gem_free_object) (struct drm_gem_object *obj); 834 int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); 835 void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); 836 837#ifdef FREEBSD_NOTYET 838 /* prime: */ 839 /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */ 840 int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv, 841 uint32_t handle, uint32_t flags, int *prime_fd); 842 /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */ 843 int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv, 844 int prime_fd, uint32_t *handle); 845 /* export GEM -> dmabuf */ 846 struct dma_buf * (*gem_prime_export)(struct drm_device *dev, 847 struct drm_gem_object *obj, int flags); 848 /* import dmabuf -> GEM */ 849 struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev, 850 struct dma_buf *dma_buf); 851#endif /* defined(FREEBSD_NOTYET) */ 852 853 /* dumb alloc support */ 854 int (*dumb_create)(struct drm_file *file_priv, 855 struct drm_device *dev, 856 struct drm_mode_create_dumb *args); 857 int (*dumb_map_offset)(struct drm_file *file_priv, 858 struct drm_device *dev, uint32_t handle, 859 uint64_t *offset); 860 int (*dumb_destroy)(struct drm_file *file_priv, 861 struct drm_device *dev, 862 uint32_t handle); 863 864 /* Driver private ops for this object */ 865 struct cdev_pager_ops *gem_pager_ops; 866 867 int (*sysctl_init)(struct drm_device *dev, 868 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 869 void (*sysctl_cleanup)(struct drm_device *dev); 870 871 int major; 872 int minor; 873 int patchlevel; 874 char *name; 875 char *desc; 876 char *date; 877 878 u32 driver_features; 879 int dev_priv_size; 880 struct drm_ioctl_desc *ioctls; 881 int num_ioctls; 882 struct drm_bus *bus; 883#ifdef COMPAT_FREEBSD32 884 struct drm_ioctl_desc *compat_ioctls; 885 int *num_compat_ioctls; 886#endif 887 888 int buf_priv_size; 889}; 890 891#define DRM_MINOR_UNASSIGNED 0 892#define DRM_MINOR_LEGACY 1 893#define DRM_MINOR_CONTROL 2 894#define DRM_MINOR_RENDER 3 895 896/** 897 * DRM minor structure. This structure represents a drm minor number. 898 */ 899struct drm_minor { 900 int index; /**< Minor device number */ 901 int type; /**< Control or render */ 902 struct cdev *device; /**< Device number for mknod */ 903 device_t kdev; /**< OS device */ 904 struct drm_device *dev; 905 906 struct drm_master *master; /* currently active master for this node */ 907 struct list_head master_list; 908 struct drm_mode_group mode_group; 909 910 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 911}; 912 913/* mode specified on the command line */ 914struct drm_cmdline_mode { 915 bool specified; 916 bool refresh_specified; 917 bool bpp_specified; 918 int xres, yres; 919 int bpp; 920 int refresh; 921 bool rb; 922 bool interlace; 923 bool cvt; 924 bool margins; 925 enum drm_connector_force force; 926}; 927 928 929struct drm_pending_vblank_event { 930 struct drm_pending_event base; 931 int pipe; 932 struct drm_event_vblank event; 933}; 934 935/** 936 * DRM device structure. This structure represent a complete card that 937 * may contain multiple heads. 938 */ 939struct drm_device { 940 int if_version; /**< Highest interface version set */ 941 942 /** \name Locks */ 943 /*@{ */ 944 struct mtx count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */ 945 struct sx dev_struct_lock; /**< For others */ 946 /*@} */ 947 948 /** \name Usage Counters */ 949 /*@{ */ 950 int open_count; /**< Outstanding files open */ 951 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */ 952 atomic_t vma_count; /**< Outstanding vma areas open */ 953 int buf_use; /**< Buffers in use -- cannot alloc */ 954 atomic_t buf_alloc; /**< Buffer allocation in progress */ 955 /*@} */ 956 957 /** \name Performance counters */ 958 /*@{ */ 959 unsigned long counters; 960 enum drm_stat_type types[15]; 961 atomic_t counts[15]; 962 /*@} */ 963 964 struct list_head filelist; 965 966 /** \name Memory management */ 967 /*@{ */ 968 struct list_head maplist; /**< Linked list of regions */ 969 int map_count; /**< Number of mappable regions */ 970 struct drm_open_hash map_hash; /**< User token hash table for maps */ 971 972 /** \name Context handle management */ 973 /*@{ */ 974 struct list_head ctxlist; /**< Linked list of context handles */ 975 int ctx_count; /**< Number of context handles */ 976 struct mtx ctxlist_mutex; /**< For ctxlist */ 977 drm_local_map_t **context_sareas; 978 int max_context; 979 unsigned long *ctx_bitmap; 980 981 /*@} */ 982 983 /** \name DMA support */ 984 /*@{ */ 985 struct drm_device_dma *dma; /**< Optional pointer for DMA support */ 986 /*@} */ 987 988 /** \name Context support */ 989 /*@{ */ 990 int irq_enabled; /**< True if irq handler is enabled */ 991 atomic_t context_flag; /**< Context swapping flag */ 992 atomic_t interrupt_flag; /**< Interruption handler flag */ 993 atomic_t dma_flag; /**< DMA dispatch flag */ 994 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ 995 int last_checked; /**< Last context checked for DMA */ 996 int last_context; /**< Last current context */ 997 unsigned long last_switch; /**< jiffies at last context switch */ 998 /*@} */ 999 1000 /** \name VBLANK IRQ support */ 1001 /*@{ */ 1002 1003 /* 1004 * At load time, disabling the vblank interrupt won't be allowed since 1005 * old clients may not call the modeset ioctl and therefore misbehave. 1006 * Once the modeset ioctl *has* been called though, we can safely 1007 * disable them when unused. 1008 */ 1009 int vblank_disable_allowed; 1010 1011 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 1012 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 1013 struct mtx vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 1014 struct mtx vbl_lock; 1015 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 1016 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 1017 /* for wraparound handling */ 1018 int *vblank_enabled; /* so we don't call enable more than 1019 once per disable */ 1020 int *vblank_inmodeset; /* Display driver is setting mode */ 1021 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 1022 struct callout vblank_disable_callout; 1023 1024 u32 max_vblank_count; /**< size of vblank counter register */ 1025 1026 /** 1027 * List of events 1028 */ 1029 struct list_head vblank_event_list; 1030 struct mtx event_lock; 1031 1032 /*@} */ 1033 1034 struct drm_agp_head *agp; /**< AGP data */ 1035 1036 device_t dev; /* Device instance from newbus */ 1037 uint16_t pci_device; /* PCI device id */ 1038 uint16_t pci_vendor; /* PCI vendor id */ 1039 uint16_t pci_subdevice; /* PCI subsystem device id */ 1040 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 1041 1042 struct drm_sg_mem *sg; /**< Scatter gather memory */ 1043 unsigned int num_crtcs; /**< Number of CRTCs on this device */ 1044 void *dev_private; /**< device private data */ 1045 void *mm_private; 1046 struct drm_sigdata sigdata; /**< For block_all_signals */ 1047 sigset_t sigmask; 1048 1049 struct drm_driver *driver; 1050 struct drm_local_map *agp_buffer_map; 1051 unsigned int agp_buffer_token; 1052 struct drm_minor *control; /**< Control node for card */ 1053 struct drm_minor *primary; /**< render type primary screen head */ 1054 1055 struct drm_mode_config mode_config; /**< Current mode config */ 1056 1057 /** \name GEM information */ 1058 /*@{ */ 1059 struct sx object_name_lock; 1060 struct drm_gem_names object_names; 1061 /*@} */ 1062 int switch_power_state; 1063 1064 atomic_t unplugged; /* device has been unplugged or gone away */ 1065 1066 /* Locks */ 1067 struct mtx dma_lock; /* protects dev->dma */ 1068 struct mtx irq_lock; /* protects irq condition checks */ 1069 1070 /* Context support */ 1071 int irq; /* Interrupt used by board */ 1072 int msi_enabled; /* MSI enabled */ 1073 int irqrid; /* Interrupt used by board */ 1074 struct resource *irqr; /* Resource for interrupt used by board */ 1075 void *irqh; /* Handle from bus_setup_intr */ 1076 1077 /* Storage of resource pointers for drm_get_resource_* */ 1078#define DRM_MAX_PCI_RESOURCE 6 1079 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 1080 int pcirid[DRM_MAX_PCI_RESOURCE]; 1081 struct mtx pcir_lock; 1082 1083 int pci_domain; 1084 int pci_bus; 1085 int pci_slot; 1086 int pci_func; 1087 1088 /* Sysctl support */ 1089 struct drm_sysctl_info *sysctl; 1090 int sysctl_node_idx; 1091 1092 void *drm_ttm_bdev; 1093 1094 void *sysctl_private; 1095 char busid_str[128]; 1096 int modesetting; 1097 1098 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 1099}; 1100 1101#define DRM_SWITCH_POWER_ON 0 1102#define DRM_SWITCH_POWER_OFF 1 1103#define DRM_SWITCH_POWER_CHANGING 2 1104 1105static __inline__ int drm_core_check_feature(struct drm_device *dev, 1106 int feature) 1107{ 1108 return ((dev->driver->driver_features & feature) ? 1 : 0); 1109} 1110 1111static inline int drm_dev_to_irq(struct drm_device *dev) 1112{ 1113 return dev->driver->bus->get_irq(dev); 1114} 1115 1116 1117#if __OS_HAS_AGP 1118static inline int drm_core_has_AGP(struct drm_device *dev) 1119{ 1120 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1121} 1122#else 1123#define drm_core_has_AGP(dev) (0) 1124#endif 1125 1126#if __OS_HAS_MTRR 1127static inline int drm_core_has_MTRR(struct drm_device *dev) 1128{ 1129 return drm_core_check_feature(dev, DRIVER_USE_MTRR); 1130} 1131 1132#define DRM_MTRR_WC MDF_WRITECOMBINE 1133 1134int drm_mtrr_add(unsigned long offset, unsigned long size, unsigned int flags); 1135int drm_mtrr_del(int handle, unsigned long offset, unsigned long size, unsigned int flags); 1136 1137#else 1138#define drm_core_has_MTRR(dev) (0) 1139 1140#define DRM_MTRR_WC 0 1141 1142static inline int drm_mtrr_add(unsigned long offset, unsigned long size, 1143 unsigned int flags) 1144{ 1145 return 0; 1146} 1147 1148static inline int drm_mtrr_del(int handle, unsigned long offset, 1149 unsigned long size, unsigned int flags) 1150{ 1151 return 0; 1152} 1153#endif 1154 1155/******************************************************************/ 1156/** \name Internal function definitions */ 1157/*@{*/ 1158 1159 /* Driver support (drm_drv.h) */ 1160d_ioctl_t drm_ioctl; 1161extern int drm_lastclose(struct drm_device *dev); 1162 1163 /* Device support (drm_fops.h) */ 1164extern struct sx drm_global_mutex; 1165d_open_t drm_open; 1166d_read_t drm_read; 1167extern void drm_release(void *data); 1168 1169 /* Mapping support (drm_vm.h) */ 1170d_mmap_t drm_mmap; 1171int drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, 1172 vm_size_t size, struct vm_object **obj_res, int nprot); 1173d_poll_t drm_poll; 1174 1175 /* Memory management support (drm_memory.h) */ 1176extern void drm_free_agp(DRM_AGP_MEM * handle, int pages); 1177extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start); 1178#ifdef FREEBSD_NOTYET 1179extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev, 1180 struct page **pages, 1181 unsigned long num_pages, 1182 uint32_t gtt_offset, 1183 uint32_t type); 1184#endif /* FREEBSD_NOTYET */ 1185extern int drm_unbind_agp(DRM_AGP_MEM * handle); 1186 1187 /* Misc. IOCTL support (drm_ioctl.h) */ 1188extern int drm_irq_by_busid(struct drm_device *dev, void *data, 1189 struct drm_file *file_priv); 1190extern int drm_getunique(struct drm_device *dev, void *data, 1191 struct drm_file *file_priv); 1192extern int drm_setunique(struct drm_device *dev, void *data, 1193 struct drm_file *file_priv); 1194extern int drm_getmap(struct drm_device *dev, void *data, 1195 struct drm_file *file_priv); 1196extern int drm_getclient(struct drm_device *dev, void *data, 1197 struct drm_file *file_priv); 1198extern int drm_getstats(struct drm_device *dev, void *data, 1199 struct drm_file *file_priv); 1200extern int drm_getcap(struct drm_device *dev, void *data, 1201 struct drm_file *file_priv); 1202extern int drm_setversion(struct drm_device *dev, void *data, 1203 struct drm_file *file_priv); 1204extern int drm_noop(struct drm_device *dev, void *data, 1205 struct drm_file *file_priv); 1206 1207 /* Context IOCTL support (drm_context.h) */ 1208extern int drm_resctx(struct drm_device *dev, void *data, 1209 struct drm_file *file_priv); 1210extern int drm_addctx(struct drm_device *dev, void *data, 1211 struct drm_file *file_priv); 1212extern int drm_modctx(struct drm_device *dev, void *data, 1213 struct drm_file *file_priv); 1214extern int drm_getctx(struct drm_device *dev, void *data, 1215 struct drm_file *file_priv); 1216extern int drm_switchctx(struct drm_device *dev, void *data, 1217 struct drm_file *file_priv); 1218extern int drm_newctx(struct drm_device *dev, void *data, 1219 struct drm_file *file_priv); 1220extern int drm_rmctx(struct drm_device *dev, void *data, 1221 struct drm_file *file_priv); 1222 1223extern int drm_ctxbitmap_init(struct drm_device *dev); 1224extern void drm_ctxbitmap_cleanup(struct drm_device *dev); 1225extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1226 1227extern int drm_setsareactx(struct drm_device *dev, void *data, 1228 struct drm_file *file_priv); 1229extern int drm_getsareactx(struct drm_device *dev, void *data, 1230 struct drm_file *file_priv); 1231 1232 /* Authentication IOCTL support (drm_auth.h) */ 1233extern int drm_getmagic(struct drm_device *dev, void *data, 1234 struct drm_file *file_priv); 1235extern int drm_authmagic(struct drm_device *dev, void *data, 1236 struct drm_file *file_priv); 1237extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic); 1238 1239/* Cache management (drm_cache.c) */ 1240void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1241void drm_clflush_virt_range(char *addr, unsigned long length); 1242 1243 /* Locking IOCTL support (drm_lock.h) */ 1244extern int drm_lock(struct drm_device *dev, void *data, 1245 struct drm_file *file_priv); 1246extern int drm_unlock(struct drm_device *dev, void *data, 1247 struct drm_file *file_priv); 1248extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context); 1249extern void drm_idlelock_take(struct drm_lock_data *lock_data); 1250extern void drm_idlelock_release(struct drm_lock_data *lock_data); 1251 1252/* 1253 * These are exported to drivers so that they can implement fencing using 1254 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1255 */ 1256 1257extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv); 1258 1259 /* Buffer management support (drm_bufs.h) */ 1260extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request); 1261extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request); 1262extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1263 unsigned int size, enum drm_map_type type, 1264 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1265extern int drm_addmap_ioctl(struct drm_device *dev, void *data, 1266 struct drm_file *file_priv); 1267extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map); 1268extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map); 1269extern int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1270 struct drm_file *file_priv); 1271extern int drm_addbufs(struct drm_device *dev, void *data, 1272 struct drm_file *file_priv); 1273extern int drm_infobufs(struct drm_device *dev, void *data, 1274 struct drm_file *file_priv); 1275extern int drm_markbufs(struct drm_device *dev, void *data, 1276 struct drm_file *file_priv); 1277extern int drm_freebufs(struct drm_device *dev, void *data, 1278 struct drm_file *file_priv); 1279extern int drm_mapbufs(struct drm_device *dev, void *data, 1280 struct drm_file *file_priv); 1281extern int drm_order(unsigned long size); 1282 1283 /* DMA support (drm_dma.h) */ 1284extern int drm_dma_setup(struct drm_device *dev); 1285extern void drm_dma_takedown(struct drm_device *dev); 1286extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf); 1287extern void drm_core_reclaim_buffers(struct drm_device *dev, 1288 struct drm_file *filp); 1289 1290 /* IRQ support (drm_irq.h) */ 1291extern int drm_control(struct drm_device *dev, void *data, 1292 struct drm_file *file_priv); 1293extern int drm_irq_install(struct drm_device *dev); 1294extern int drm_irq_uninstall(struct drm_device *dev); 1295 1296extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1297extern int drm_wait_vblank(struct drm_device *dev, void *data, 1298 struct drm_file *filp); 1299extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1300extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1301extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1302 struct timeval *vblanktime); 1303extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1304 struct drm_pending_vblank_event *e); 1305extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1306extern int drm_vblank_get(struct drm_device *dev, int crtc); 1307extern void drm_vblank_put(struct drm_device *dev, int crtc); 1308extern void drm_vblank_off(struct drm_device *dev, int crtc); 1309extern void drm_vblank_cleanup(struct drm_device *dev); 1310extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1311 struct timeval *tvblank, unsigned flags); 1312extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1313 int crtc, int *max_error, 1314 struct timeval *vblank_time, 1315 unsigned flags, 1316 struct drm_crtc *refcrtc); 1317extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1318 1319extern bool 1320drm_mode_parse_command_line_for_connector(const char *mode_option, 1321 struct drm_connector *connector, 1322 struct drm_cmdline_mode *mode); 1323 1324extern struct drm_display_mode * 1325drm_mode_create_from_cmdline_mode(struct drm_device *dev, 1326 struct drm_cmdline_mode *cmd); 1327 1328/* Modesetting support */ 1329extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1330extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1331extern int drm_modeset_ctl(struct drm_device *dev, void *data, 1332 struct drm_file *file_priv); 1333 1334 /* AGP/GART support (drm_agpsupport.h) */ 1335extern struct drm_agp_head *drm_agp_init(struct drm_device *dev); 1336extern int drm_agp_acquire(struct drm_device *dev); 1337extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1338 struct drm_file *file_priv); 1339extern int drm_agp_release(struct drm_device *dev); 1340extern int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1341 struct drm_file *file_priv); 1342extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1343extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1344 struct drm_file *file_priv); 1345extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info); 1346extern int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1347 struct drm_file *file_priv); 1348extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1349extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1350 struct drm_file *file_priv); 1351extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1352extern int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1353 struct drm_file *file_priv); 1354extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1355extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1356 struct drm_file *file_priv); 1357extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1358extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1359 struct drm_file *file_priv); 1360 1361 /* Stub support (drm_stub.h) */ 1362extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1363 struct drm_file *file_priv); 1364extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1365 struct drm_file *file_priv); 1366struct drm_master *drm_master_create(struct drm_minor *minor); 1367extern struct drm_master *drm_master_get(struct drm_master *master); 1368extern void drm_master_put(struct drm_master **master); 1369 1370extern void drm_put_dev(struct drm_device *dev); 1371extern int drm_put_minor(struct drm_minor **minor); 1372extern void drm_unplug_dev(struct drm_device *dev); 1373extern unsigned int drm_debug; 1374extern unsigned int drm_notyet; 1375 1376extern unsigned int drm_vblank_offdelay; 1377extern unsigned int drm_timestamp_precision; 1378extern unsigned int drm_timestamp_monotonic; 1379 1380extern struct drm_local_map *drm_getsarea(struct drm_device *dev); 1381 1382 1383#ifdef FREEBSD_NOTYET 1384extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1385 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1386 int *prime_fd); 1387extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1388 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1389 1390extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1391 struct drm_file *file_priv); 1392extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1393 struct drm_file *file_priv); 1394 1395extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1396 dma_addr_t *addrs, int max_pages); 1397extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1398extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1399 1400 1401void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1402void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1403int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1404int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1405void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1406 1407int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1408int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1409 struct drm_gem_object **obj); 1410#endif /* FREEBSD_NOTYET */ 1411 1412 /* Scatter Gather Support (drm_scatter.h) */ 1413extern void drm_sg_cleanup(struct drm_sg_mem * entry); 1414extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1415 struct drm_file *file_priv); 1416extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1417extern int drm_sg_free(struct drm_device *dev, void *data, 1418 struct drm_file *file_priv); 1419 1420 /* ATI PCIGART support (ati_pcigart.h) */ 1421extern int drm_ati_pcigart_init(struct drm_device *dev, 1422 struct drm_ati_pcigart_info * gart_info); 1423extern int drm_ati_pcigart_cleanup(struct drm_device *dev, 1424 struct drm_ati_pcigart_info * gart_info); 1425 1426extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1427 size_t align, dma_addr_t maxaddr); 1428extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); 1429extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); 1430 1431/* Graphics Execution Manager library functions (drm_gem.c) */ 1432int drm_gem_init(struct drm_device *dev); 1433void drm_gem_destroy(struct drm_device *dev); 1434void drm_gem_object_release(struct drm_gem_object *obj); 1435void drm_gem_object_free(struct drm_gem_object *obj); 1436struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1437 size_t size); 1438int drm_gem_object_init(struct drm_device *dev, 1439 struct drm_gem_object *obj, size_t size); 1440int drm_gem_private_object_init(struct drm_device *dev, 1441 struct drm_gem_object *obj, size_t size); 1442void drm_gem_object_handle_free(struct drm_gem_object *obj); 1443int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1444 vm_size_t size, struct vm_object **obj_res, int nprot); 1445void drm_gem_pager_dtr(void *obj); 1446 1447#include <dev/drm2/drm_global.h> 1448 1449static inline void 1450drm_gem_object_reference(struct drm_gem_object *obj) 1451{ 1452 1453 KASSERT(obj->refcount > 0, ("Dangling obj %p", obj)); 1454 refcount_acquire(&obj->refcount); 1455} 1456 1457static inline void 1458drm_gem_object_unreference(struct drm_gem_object *obj) 1459{ 1460 1461 if (obj == NULL) 1462 return; 1463 if (refcount_release(&obj->refcount)) 1464 drm_gem_object_free(obj); 1465} 1466 1467static inline void 1468drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1469{ 1470 if (obj != NULL) { 1471 struct drm_device *dev = obj->dev; 1472 DRM_LOCK(dev); 1473 drm_gem_object_unreference(obj); 1474 DRM_UNLOCK(dev); 1475 } 1476} 1477 1478int drm_gem_handle_create(struct drm_file *file_priv, 1479 struct drm_gem_object *obj, 1480 u32 *handlep); 1481int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1482 1483static inline void 1484drm_gem_object_handle_reference(struct drm_gem_object *obj) 1485{ 1486 drm_gem_object_reference(obj); 1487 atomic_inc(&obj->handle_count); 1488} 1489 1490static inline void 1491drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1492{ 1493 if (obj == NULL) 1494 return; 1495 1496 if (atomic_read(&obj->handle_count) == 0) 1497 return; 1498 /* 1499 * Must bump handle count first as this may be the last 1500 * ref, in which case the object would disappear before we 1501 * checked for a name 1502 */ 1503 if (atomic_dec_and_test(&obj->handle_count)) 1504 drm_gem_object_handle_free(obj); 1505 drm_gem_object_unreference(obj); 1506} 1507 1508static inline void 1509drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) 1510{ 1511 if (obj == NULL) 1512 return; 1513 1514 if (atomic_read(&obj->handle_count) == 0) 1515 return; 1516 1517 /* 1518 * Must bump handle count first as this may be the last 1519 * ref, in which case the object would disappear before we 1520 * checked for a name 1521 */ 1522 1523 if (atomic_dec_and_test(&obj->handle_count)) 1524 drm_gem_object_handle_free(obj); 1525 drm_gem_object_unreference_unlocked(obj); 1526} 1527 1528void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1529int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1530 1531struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1532 struct drm_file *filp, 1533 u32 handle); 1534int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1535 struct drm_file *file_priv); 1536int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1537 struct drm_file *file_priv); 1538int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1539 struct drm_file *file_priv); 1540void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); 1541void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); 1542 1543extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev); 1544extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev); 1545extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev); 1546 1547static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, 1548 unsigned int token) 1549{ 1550 struct drm_map_list *_entry; 1551 list_for_each_entry(_entry, &dev->maplist, head) 1552 if (_entry->user_token == token) 1553 return _entry->map; 1554 return NULL; 1555} 1556 1557static __inline__ void drm_core_dropmap(struct drm_local_map *map) 1558{ 1559} 1560 1561extern int drm_fill_in_dev(struct drm_device *dev, 1562 struct drm_driver *driver); 1563extern void drm_cancel_fill_in_dev(struct drm_device *dev); 1564int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type); 1565/*@}*/ 1566 1567/* PCI section */ 1568int drm_pci_device_is_agp(struct drm_device *dev); 1569int drm_pci_device_is_pcie(struct drm_device *dev); 1570 1571extern int drm_get_pci_dev(device_t kdev, struct drm_device *dev, 1572 struct drm_driver *driver); 1573 1574#define DRM_PCIE_SPEED_25 1 1575#define DRM_PCIE_SPEED_50 2 1576#define DRM_PCIE_SPEED_80 4 1577 1578extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1579 1580#define drm_can_sleep() (DRM_HZ & 1) 1581 1582/* FreeBSD specific -- should be moved to drm_os_freebsd.h */ 1583 1584#define DRM_GEM_MAPPING_MASK (3ULL << 62) 1585#define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 1586#define DRM_GEM_MAX_IDX 0x3fffff 1587#define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 1588#define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 1589#define DRM_GEM_MAPPING_MAPOFF(o) \ 1590 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 1591 1592SYSCTL_DECL(_hw_drm); 1593 1594#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 1595#define DRM_DEV_UID 0 1596#define DRM_DEV_GID 0 1597 1598#define DRM_WAKEUP(w) wakeup((void *)w) 1599#define DRM_WAKEUP_INT(w) wakeup(w) 1600#define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 1601 1602#define DRM_CURPROC curthread 1603#define DRM_STRUCTPROC struct thread 1604#define DRM_SPINTYPE struct mtx 1605#define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF) 1606#define DRM_SPINUNINIT(l) mtx_destroy(l) 1607#define DRM_SPINLOCK(l) mtx_lock(l) 1608#define DRM_SPINUNLOCK(u) mtx_unlock(u) 1609#define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \ 1610 mtx_lock(l); \ 1611 (void)irqflags; \ 1612} while (0) 1613#define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u) 1614#define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 1615#define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 1616 (sx_sleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout))) 1617#if defined(INVARIANTS) 1618#define DRM_LOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_XLOCKED) 1619#define DRM_UNLOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_UNLOCKED) 1620#else 1621#define DRM_LOCK_ASSERT(d) 1622#define DRM_UNLOCK_ASSERT(d) 1623#endif 1624 1625#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 1626 1627enum { 1628 DRM_IS_NOT_AGP, 1629 DRM_IS_AGP, 1630 DRM_MIGHT_BE_AGP 1631}; 1632 1633#define DRM_VERIFYAREA_READ( uaddr, size ) \ 1634 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 1635 1636#define DRM_COPY_TO_USER(user, kern, size) \ 1637 copyout(kern, user, size) 1638#define DRM_COPY_FROM_USER(kern, user, size) \ 1639 copyin(user, kern, size) 1640#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 1641 copyin(arg2, arg1, arg3) 1642#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 1643 copyout(arg2, arg1, arg3) 1644#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 1645 ((val) = fuword32(uaddr), 0) 1646 1647#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 1648 (_map) = (_dev)->context_sareas[_ctx]; \ 1649} while(0) 1650 1651/* Returns -errno to shared code */ 1652#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 1653for ( ret = 0 ; !ret && !(condition) ; ) { \ 1654 DRM_UNLOCK(dev); \ 1655 mtx_lock(&dev->irq_lock); \ 1656 if (!(condition)) \ 1657 ret = -mtx_sleep(&(queue), &dev->irq_lock, \ 1658 PCATCH, "drmwtq", (timeout)); \ 1659 if (ret == -ERESTART) \ 1660 ret = -ERESTARTSYS; \ 1661 mtx_unlock(&dev->irq_lock); \ 1662 DRM_LOCK(dev); \ 1663} 1664 1665#define dev_err(dev, fmt, ...) \ 1666 device_printf((dev), "error: " fmt, ## __VA_ARGS__) 1667#define dev_warn(dev, fmt, ...) \ 1668 device_printf((dev), "warning: " fmt, ## __VA_ARGS__) 1669#define dev_info(dev, fmt, ...) \ 1670 device_printf((dev), "info: " fmt, ## __VA_ARGS__) 1671#define dev_dbg(dev, fmt, ...) do { \ 1672 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 1673 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 1674 } \ 1675} while (0) 1676 1677struct drm_msi_blacklist_entry 1678{ 1679 int vendor; 1680 int device; 1681}; 1682 1683struct drm_vblank_info { 1684 wait_queue_head_t queue; /* vblank wait queue */ 1685 atomic_t count; /* number of VBLANK interrupts */ 1686 /* (driver must alloc the right number of counters) */ 1687 atomic_t refcount; /* number of users of vblank interrupts */ 1688 u32 last; /* protected by dev->vbl_lock, used */ 1689 /* for wraparound handling */ 1690 int enabled; /* so we don't call enable more than */ 1691 /* once per disable */ 1692 int inmodeset; /* Display driver is setting mode */ 1693}; 1694 1695#ifndef DMA_BIT_MASK 1696#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 1697#endif 1698 1699#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 1700 1701enum dmi_field { 1702 DMI_NONE, 1703 DMI_BIOS_VENDOR, 1704 DMI_BIOS_VERSION, 1705 DMI_BIOS_DATE, 1706 DMI_SYS_VENDOR, 1707 DMI_PRODUCT_NAME, 1708 DMI_PRODUCT_VERSION, 1709 DMI_PRODUCT_SERIAL, 1710 DMI_PRODUCT_UUID, 1711 DMI_BOARD_VENDOR, 1712 DMI_BOARD_NAME, 1713 DMI_BOARD_VERSION, 1714 DMI_BOARD_SERIAL, 1715 DMI_BOARD_ASSET_TAG, 1716 DMI_CHASSIS_VENDOR, 1717 DMI_CHASSIS_TYPE, 1718 DMI_CHASSIS_VERSION, 1719 DMI_CHASSIS_SERIAL, 1720 DMI_CHASSIS_ASSET_TAG, 1721 DMI_STRING_MAX, 1722}; 1723 1724struct dmi_strmatch { 1725 unsigned char slot; 1726 char substr[79]; 1727}; 1728 1729struct dmi_system_id { 1730 int (*callback)(const struct dmi_system_id *); 1731 const char *ident; 1732 struct dmi_strmatch matches[4]; 1733}; 1734#define DMI_MATCH(a, b) {(a), (b)} 1735bool dmi_check_system(const struct dmi_system_id *); 1736 1737/* Device setup support (drm_drv.c) */ 1738int drm_probe_helper(device_t kdev, drm_pci_id_list_t *idlist); 1739int drm_attach_helper(device_t kdev, drm_pci_id_list_t *idlist, 1740 struct drm_driver *driver); 1741int drm_generic_detach(device_t kdev); 1742 1743void drm_event_wakeup(struct drm_pending_event *e); 1744 1745int drm_add_busid_modesetting(struct drm_device *dev, 1746 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1747 1748/* Buffer management support (drm_bufs.c) */ 1749unsigned long drm_get_resource_start(struct drm_device *dev, 1750 unsigned int resource); 1751unsigned long drm_get_resource_len(struct drm_device *dev, 1752 unsigned int resource); 1753 1754/* IRQ support (drm_irq.c) */ 1755irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 1756void drm_driver_irq_preinstall(struct drm_device *dev); 1757void drm_driver_irq_postinstall(struct drm_device *dev); 1758void drm_driver_irq_uninstall(struct drm_device *dev); 1759 1760/* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1761void *drm_agp_allocate_memory(size_t pages, u32 type); 1762int drm_agp_free_memory(void *handle); 1763int drm_agp_bind_memory(void *handle, off_t start); 1764int drm_agp_unbind_memory(void *handle); 1765 1766/* sysctl support (drm_sysctl.h) */ 1767extern int drm_sysctl_init(struct drm_device *dev); 1768extern int drm_sysctl_cleanup(struct drm_device *dev); 1769 1770int drm_version(struct drm_device *dev, void *data, 1771 struct drm_file *file_priv); 1772 1773/* consistent PCI memory functions (drm_pci.c) */ 1774int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); 1775int drm_pci_set_unique(struct drm_device *dev, struct drm_master *master, 1776 struct drm_unique *u); 1777int drm_pci_agp_init(struct drm_device *dev); 1778int drm_pci_enable_msi(struct drm_device *dev); 1779void drm_pci_disable_msi(struct drm_device *dev); 1780 1781struct ttm_bo_device; 1782int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1783 vm_size_t size, struct vm_object **obj_res, int nprot); 1784struct ttm_buffer_object; 1785void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1786 1787#endif /* __KERNEL__ */ 1788#endif 1789