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: releng/11.0/sys/dev/drm2/drmP.h 296548 2016-03-08 20:33:02Z 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/bus.h> 80#include <machine/resource.h> 81#if defined(__i386__) || defined(__amd64__) 82#include <machine/specialreg.h> 83#endif 84#include <machine/sysarch.h> 85#include <sys/endian.h> 86#include <sys/mman.h> 87#include <sys/rman.h> 88#include <sys/memrange.h> 89#include <dev/agp/agpvar.h> 90#include <sys/agpio.h> 91#include <sys/mutex.h> 92#include <dev/pci/pcivar.h> 93#include <dev/pci/pcireg.h> 94#include <sys/selinfo.h> 95#include <sys/bus.h> 96 97#include <dev/drm2/drm.h> 98#include <dev/drm2/drm_sarea.h> 99 100#include <dev/drm2/drm_atomic.h> 101#include <dev/drm2/drm_linux_list.h> 102#include <dev/drm2/drm_gem_names.h> 103 104#include <dev/drm2/drm_os_freebsd.h> 105 106#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))) 107#define __OS_HAS_MTRR (defined(CONFIG_MTRR)) 108 109struct drm_file; 110struct drm_device; 111 112#include <dev/drm2/drm_hashtab.h> 113#include <dev/drm2/drm_mm.h> 114 115#include "opt_compat.h" 116#include "opt_drm.h" 117#include "opt_syscons.h" 118#ifdef DRM_DEBUG 119#undef DRM_DEBUG 120#define DRM_DEBUG_DEFAULT_ON 1 121#endif /* DRM_DEBUG */ 122 123#define DRM_DEBUGBITS_DEBUG 0x1 124#define DRM_DEBUGBITS_KMS 0x2 125#define DRM_DEBUGBITS_FAILED_IOCTL 0x4 126 127#undef DRM_LINUX 128#define DRM_LINUX 0 129 130/***********************************************************************/ 131/** \name DRM template customization defaults */ 132/*@{*/ 133 134/* driver capabilities and requirements mask */ 135#define DRIVER_USE_AGP 0x1 136#define DRIVER_REQUIRE_AGP 0x2 137#define DRIVER_USE_MTRR 0x4 138#define DRIVER_PCI_DMA 0x8 139#define DRIVER_SG 0x10 140#define DRIVER_HAVE_DMA 0x20 141#define DRIVER_HAVE_IRQ 0x40 142#define DRIVER_IRQ_SHARED 0x80 143#define DRIVER_IRQ_VBL 0x100 144#define DRIVER_DMA_QUEUE 0x200 145#define DRIVER_FB_DMA 0x400 146#define DRIVER_IRQ_VBL2 0x800 147#define DRIVER_GEM 0x1000 148#define DRIVER_MODESET 0x2000 149#define DRIVER_PRIME 0x4000 150 151#define DRIVER_BUS_PCI 0x1 152#define DRIVER_BUS_PLATFORM 0x2 153#define DRIVER_BUS_USB 0x3 154 155/***********************************************************************/ 156/** \name Begin the DRM... */ 157/*@{*/ 158 159#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then 160 also include looping detection. */ 161 162#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ 163#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */ 164#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */ 165#define DRM_LOOPING_LIMIT 5000000 166#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */ 167#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */ 168 169#define DRM_FLAG_DEBUG 0x01 170 171#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 172#define DRM_MAP_HASH_OFFSET 0x10000000 173 174/*@}*/ 175 176/***********************************************************************/ 177/** \name Macros to make printk easier */ 178/*@{*/ 179 180/** 181 * Error output. 182 * 183 * \param fmt printf() like format string. 184 * \param arg arguments 185 */ 186#define DRM_ERROR(fmt, ...) \ 187 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 188 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 189 190#define DRM_WARNING(fmt, ...) printf("warning: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 191#define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 192 193/** 194 * Debug output. 195 * 196 * \param fmt printf() like format string. 197 * \param arg arguments 198 */ 199#define DRM_DEBUG(fmt, ...) do { \ 200 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 201 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 202 __func__ , ##__VA_ARGS__); \ 203} while (0) 204 205#define DRM_DEBUG_DRIVER(fmt, ...) do { \ 206 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 207 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 208 __func__ , ##__VA_ARGS__); \ 209} while (0) 210 211#define DRM_DEBUG_KMS(fmt, ...) do { \ 212 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 213 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 214 __func__ , ##__VA_ARGS__); \ 215} while (0) 216 217#define DRM_LOG(fmt, ...) do { \ 218 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 219 printf("[" DRM_NAME "]:pid%d:%s]" fmt, DRM_CURRENTPID, \ 220 __func__ , ##__VA_ARGS__); \ 221} while (0) 222 223#define DRM_LOG_KMS(fmt, ...) do { \ 224 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 225 printf("[" DRM_NAME "]:KMS:pid%d:%s]" fmt, DRM_CURRENTPID,\ 226 __func__ , ##__VA_ARGS__); \ 227} while (0) 228 229#define DRM_LOG_MODE(fmt, ...) do { \ 230 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 231 printf("[" DRM_NAME "]:pid%d:%s]" fmt, DRM_CURRENTPID, \ 232 __func__ , ##__VA_ARGS__); \ 233} while (0) 234 235#define DRM_LOG_DRIVER(fmt, ...) do { \ 236 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 237 printf("[" DRM_NAME "]:KMS:pid%d:%s]" fmt, DRM_CURRENTPID,\ 238 __func__ , ##__VA_ARGS__); \ 239} while (0) 240 241/*@}*/ 242 243/***********************************************************************/ 244/** \name Internal types and structures */ 245/*@{*/ 246 247#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x) 248 249#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1)) 250#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x)) 251 252#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 253 254/** 255 * Test that the hardware lock is held by the caller, returning otherwise. 256 * 257 * \param dev DRM device. 258 * \param filp file pointer of the caller. 259 */ 260#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \ 261do { \ 262 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \ 263 _file_priv->master->lock.file_priv != _file_priv) { \ 264 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\ 265 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\ 266 _file_priv->master->lock.file_priv, _file_priv); \ 267 return -EINVAL; \ 268 } \ 269} while (0) 270 271/** 272 * Ioctl function type. 273 * 274 * \param inode device inode. 275 * \param file_priv DRM file private pointer. 276 * \param cmd command. 277 * \param arg argument. 278 */ 279typedef int drm_ioctl_t(struct drm_device *dev, void *data, 280 struct drm_file *file_priv); 281 282#define DRM_IOCTL_NR(n) ((n) & 0xff) 283#define DRM_MAJOR 226 284 285#define DRM_AUTH 0x1 286#define DRM_MASTER 0x2 287#define DRM_ROOT_ONLY 0x4 288#define DRM_CONTROL_ALLOW 0x8 289#define DRM_UNLOCKED 0x10 290 291struct drm_ioctl_desc { 292 unsigned long cmd; 293 int flags; 294 drm_ioctl_t *func; 295 unsigned int cmd_drv; 296}; 297 298/** 299 * Creates a driver or general drm_ioctl_desc array entry for the given 300 * ioctl, for use by drm_ioctl(). 301 */ 302 303#define DRM_IOCTL_DEF(ioctl, _func, _flags) \ 304 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0} 305 306#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 307 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 308 309struct drm_magic_entry { 310 struct list_head head; 311 struct drm_hash_item hash_item; 312 struct drm_file *priv; 313}; 314 315/** 316 * DMA buffer. 317 */ 318struct drm_buf { 319 int idx; /**< Index into master buflist */ 320 int total; /**< Buffer size */ 321 int order; /**< log-base-2(total) */ 322 int used; /**< Amount of buffer in use (for DMA) */ 323 unsigned long offset; /**< Byte offset (used internally) */ 324 void *address; /**< Address of buffer */ 325 unsigned long bus_address; /**< Bus address of buffer */ 326 struct drm_buf *next; /**< Kernel-only: used for free list */ 327 __volatile__ int waiting; /**< On kernel DMA queue */ 328 __volatile__ int pending; /**< On hardware DMA queue */ 329 struct drm_file *file_priv; /**< Private of holding file descr */ 330 int context; /**< Kernel queue for this buffer */ 331 int while_locked; /**< Dispatch this buffer while locked */ 332 enum { 333 DRM_LIST_NONE = 0, 334 DRM_LIST_FREE = 1, 335 DRM_LIST_WAIT = 2, 336 DRM_LIST_PEND = 3, 337 DRM_LIST_PRIO = 4, 338 DRM_LIST_RECLAIM = 5 339 } list; /**< Which list we're on */ 340 341 int dev_priv_size; /**< Size of buffer private storage */ 342 void *dev_private; /**< Per-buffer private storage */ 343}; 344 345struct drm_freelist { 346 int initialized; /**< Freelist in use */ 347 atomic_t count; /**< Number of free buffers */ 348 struct drm_buf *next; /**< End pointer */ 349 350#ifdef FREEBSD_NOTYET 351 wait_queue_head_t waiting; /**< Processes waiting on free bufs */ 352#endif /* defined(FREEBSD_NOTYET) */ 353 int low_mark; /**< Low water mark */ 354 int high_mark; /**< High water mark */ 355#ifdef FREEBSD_NOTYET 356 atomic_t wfh; /**< If waiting for high mark */ 357 spinlock_t lock; 358#endif /* defined(FREEBSD_NOTYET) */ 359}; 360 361typedef struct drm_dma_handle { 362 void *vaddr; 363 bus_addr_t busaddr; 364 bus_dma_tag_t tag; 365 bus_dmamap_t map; 366} drm_dma_handle_t; 367 368/** 369 * Buffer entry. There is one of this for each buffer size order. 370 */ 371struct drm_buf_entry { 372 int buf_size; /**< size */ 373 int buf_count; /**< number of buffers */ 374 struct drm_buf *buflist; /**< buffer list */ 375 int seg_count; 376 int page_order; 377 struct drm_dma_handle **seglist; 378 379 struct drm_freelist freelist; 380}; 381 382/* Event queued up for userspace to read */ 383struct drm_pending_event { 384 struct drm_event *event; 385 struct list_head link; 386 struct drm_file *file_priv; 387 pid_t pid; /* pid of requester, no guarantee it's valid by the time 388 we deliver the event, for tracing only */ 389 void (*destroy)(struct drm_pending_event *event); 390}; 391 392/* initial implementaton using a linked list - todo hashtab */ 393struct drm_prime_file_private { 394 struct list_head head; 395 struct mtx lock; 396}; 397 398struct drm_file { 399 int authenticated; 400 pid_t pid; 401 uid_t uid; 402 drm_magic_t magic; 403 unsigned long ioctl_count; 404 struct list_head lhead; 405 struct drm_minor *minor; 406 unsigned long lock_count; 407 408 void *driver_priv; 409 struct drm_gem_names object_names; 410 411 int is_master; /* this file private is a master for a minor */ 412 struct drm_master *master; /* master this node is currently associated with 413 N.B. not always minor->master */ 414 struct list_head fbs; 415 416 struct selinfo event_poll; 417 struct list_head event_list; 418 int event_space; 419 420 struct drm_prime_file_private prime; 421}; 422 423/** 424 * Lock data. 425 */ 426struct drm_lock_data { 427 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 428 /** Private of lock holder's file (NULL=kernel) */ 429 struct drm_file *file_priv; 430 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 431 unsigned long lock_time; /**< Time of last lock in jiffies */ 432 struct mtx spinlock; 433 uint32_t kernel_waiters; 434 uint32_t user_waiters; 435 int idle_has_lock; 436}; 437 438/** 439 * DMA data. 440 */ 441struct drm_device_dma { 442 443 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 444 int buf_count; /**< total number of buffers */ 445 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 446 int seg_count; 447 int page_count; /**< number of pages */ 448 unsigned long *pagelist; /**< page list */ 449 unsigned long byte_count; 450 enum { 451 _DRM_DMA_USE_AGP = 0x01, 452 _DRM_DMA_USE_SG = 0x02, 453 _DRM_DMA_USE_FB = 0x04, 454 _DRM_DMA_USE_PCI_RO = 0x08 455 } flags; 456 457}; 458 459/** 460 * AGP memory entry. Stored as a doubly linked list. 461 */ 462struct drm_agp_mem { 463 unsigned long handle; /**< handle */ 464 DRM_AGP_MEM *memory; 465 unsigned long bound; /**< address */ 466 int pages; 467 struct list_head head; 468}; 469 470/** 471 * AGP data. 472 * 473 * \sa drm_agp_init() and drm_device::agp. 474 */ 475struct drm_agp_head { 476 DRM_AGP_KERN agp_info; /**< AGP device information */ 477 struct list_head memory; 478 unsigned long mode; /**< AGP mode */ 479 device_t bridge; 480 int enabled; /**< whether the AGP bus as been enabled */ 481 int acquired; /**< whether the AGP device has been acquired */ 482 unsigned long base; 483 int agp_mtrr; 484 int cant_use_aperture; 485}; 486 487/** 488 * Scatter-gather memory. 489 */ 490struct drm_sg_mem { 491 vm_offset_t vaddr; 492 vm_paddr_t *busaddr; 493 vm_pindex_t pages; 494}; 495 496struct drm_sigdata { 497 int context; 498 struct drm_hw_lock *lock; 499}; 500 501/** 502 * Kernel side of a mapping 503 */ 504#define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 505#define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 506 507struct drm_local_map { 508 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 509 unsigned long size; /**< Requested physical size (bytes) */ 510 enum drm_map_type type; /**< Type of memory to map */ 511 enum drm_map_flags flags; /**< Flags */ 512 void *handle; /**< User-space: "Handle" to pass to mmap() */ 513 /**< Kernel-space: kernel-virtual address */ 514 int mtrr; /**< MTRR slot used */ 515 516 /* Private data */ 517 drm_dma_handle_t *dmah; 518}; 519 520typedef struct drm_local_map drm_local_map_t; 521 522/** 523 * Mappings list 524 */ 525struct drm_map_list { 526 struct list_head head; /**< list head */ 527 struct drm_hash_item hash; 528 struct drm_local_map *map; /**< mapping */ 529 uint64_t user_token; 530 struct drm_master *master; 531 struct drm_mm_node *file_offset_node; /**< fake offset */ 532}; 533 534/** 535 * Context handle list 536 */ 537struct drm_ctx_list { 538 struct list_head head; /**< list head */ 539 drm_context_t handle; /**< context handle */ 540 struct drm_file *tag; /**< associated fd private data */ 541}; 542 543/* location of GART table */ 544#define DRM_ATI_GART_MAIN 1 545#define DRM_ATI_GART_FB 2 546 547#define DRM_ATI_GART_PCI 1 548#define DRM_ATI_GART_PCIE 2 549#define DRM_ATI_GART_IGP 3 550 551struct drm_ati_pcigart_info { 552 int gart_table_location; 553 int gart_reg_if; 554 void *addr; 555 dma_addr_t bus_addr; 556 dma_addr_t table_mask; 557 struct drm_dma_handle *table_handle; 558 struct drm_local_map mapping; 559 int table_size; 560 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table FIXME */ 561}; 562 563/** 564 * GEM specific mm private for tracking GEM objects 565 */ 566struct drm_gem_mm { 567 struct unrhdr *idxunr; 568 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 569}; 570 571/** 572 * This structure defines the drm_mm memory object, which will be used by the 573 * DRM for its buffer objects. 574 */ 575struct drm_gem_object { 576 /** Reference count of this object */ 577 u_int refcount; 578 579 /** Handle count of this object. Each handle also holds a reference */ 580 atomic_t handle_count; /* number of handles on this object */ 581 582 /** Related drm device */ 583 struct drm_device *dev; 584 585 /** File representing the shmem storage: filp in Linux parlance */ 586 vm_object_t vm_obj; 587 588 /* Mapping info for this object */ 589 bool on_map; 590 struct drm_hash_item map_list; 591 592 /** 593 * Size of the object, in bytes. Immutable over the object's 594 * lifetime. 595 */ 596 size_t size; 597 598 /** 599 * Global name for this object, starts at 1. 0 means unnamed. 600 * Access is covered by the object_name_lock in the related drm_device 601 */ 602 int name; 603 604 /** 605 * Memory domains. These monitor which caches contain read/write data 606 * related to the object. When transitioning from one set of domains 607 * to another, the driver is called to ensure that caches are suitably 608 * flushed and invalidated 609 */ 610 uint32_t read_domains; 611 uint32_t write_domain; 612 613 /** 614 * While validating an exec operation, the 615 * new read/write domain values are computed here. 616 * They will be transferred to the above values 617 * at the point that any cache flushing occurs 618 */ 619 uint32_t pending_read_domains; 620 uint32_t pending_write_domain; 621 622 void *driver_private; 623 624#ifdef FREEBSD_NOTYET 625 /* dma buf exported from this GEM object */ 626 struct dma_buf *export_dma_buf; 627 628 /* dma buf attachment backing this object */ 629 struct dma_buf_attachment *import_attach; 630#endif /* FREEBSD_NOTYET */ 631}; 632 633#include <dev/drm2/drm_crtc.h> 634 635/* per-master structure */ 636struct drm_master { 637 638 u_int refcount; /* refcount for this master */ 639 640 struct list_head head; /**< each minor contains a list of masters */ 641 struct drm_minor *minor; /**< link back to minor we are a master for */ 642 643 char *unique; /**< Unique identifier: e.g., busid */ 644 int unique_len; /**< Length of unique field */ 645 int unique_size; /**< amount allocated */ 646 647 int blocked; /**< Blocked due to VC switch? */ 648 649 /** \name Authentication */ 650 /*@{ */ 651 struct drm_open_hash magiclist; 652 struct list_head magicfree; 653 /*@} */ 654 655 struct drm_lock_data lock; /**< Information on hardware lock */ 656 657 void *driver_priv; /**< Private structure for driver to use */ 658}; 659 660/* Size of ringbuffer for vblank timestamps. Just double-buffer 661 * in initial implementation. 662 */ 663#define DRM_VBLANKTIME_RBSIZE 2 664 665/* Flags and return codes for get_vblank_timestamp() driver function. */ 666#define DRM_CALLED_FROM_VBLIRQ 1 667#define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 668#define DRM_VBLANKTIME_INVBL (1 << 1) 669 670/* get_scanout_position() return flags */ 671#define DRM_SCANOUTPOS_VALID (1 << 0) 672#define DRM_SCANOUTPOS_INVBL (1 << 1) 673#define DRM_SCANOUTPOS_ACCURATE (1 << 2) 674 675struct drm_bus { 676 int bus_type; 677 int (*get_irq)(struct drm_device *dev); 678 void (*free_irq)(struct drm_device *dev); 679 const char *(*get_name)(struct drm_device *dev); 680 int (*set_busid)(struct drm_device *dev, struct drm_master *master); 681 int (*set_unique)(struct drm_device *dev, struct drm_master *master, 682 struct drm_unique *unique); 683 int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p); 684 /* hooks that are for PCI */ 685 int (*agp_init)(struct drm_device *dev); 686 687}; 688 689/** 690 * DRM driver structure. This structure represent the common code for 691 * a family of cards. There will one drm_device for each card present 692 * in this family 693 */ 694struct drm_driver { 695 int (*load) (struct drm_device *, unsigned long flags); 696 int (*firstopen) (struct drm_device *); 697 int (*open) (struct drm_device *, struct drm_file *); 698 void (*preclose) (struct drm_device *, struct drm_file *file_priv); 699 void (*postclose) (struct drm_device *, struct drm_file *); 700 void (*lastclose) (struct drm_device *); 701 int (*unload) (struct drm_device *); 702 int (*suspend) (struct drm_device *, pm_message_t state); 703 int (*resume) (struct drm_device *); 704 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); 705 int (*dma_quiescent) (struct drm_device *); 706 int (*context_dtor) (struct drm_device *dev, int context); 707 708 /** 709 * get_vblank_counter - get raw hardware vblank counter 710 * @dev: DRM device 711 * @crtc: counter to fetch 712 * 713 * Driver callback for fetching a raw hardware vblank counter for @crtc. 714 * If a device doesn't have a hardware counter, the driver can simply 715 * return the value of drm_vblank_count. The DRM core will account for 716 * missed vblank events while interrupts where disabled based on system 717 * timestamps. 718 * 719 * Wraparound handling and loss of events due to modesetting is dealt 720 * with in the DRM core code. 721 * 722 * RETURNS 723 * Raw vblank counter value. 724 */ 725 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc); 726 727 /** 728 * enable_vblank - enable vblank interrupt events 729 * @dev: DRM device 730 * @crtc: which irq to enable 731 * 732 * Enable vblank interrupts for @crtc. If the device doesn't have 733 * a hardware vblank counter, this routine should be a no-op, since 734 * interrupts will have to stay on to keep the count accurate. 735 * 736 * RETURNS 737 * Zero on success, appropriate errno if the given @crtc's vblank 738 * interrupt cannot be enabled. 739 */ 740 int (*enable_vblank) (struct drm_device *dev, int crtc); 741 742 /** 743 * disable_vblank - disable vblank interrupt events 744 * @dev: DRM device 745 * @crtc: which irq to enable 746 * 747 * Disable vblank interrupts for @crtc. If the device doesn't have 748 * a hardware vblank counter, this routine should be a no-op, since 749 * interrupts will have to stay on to keep the count accurate. 750 */ 751 void (*disable_vblank) (struct drm_device *dev, int crtc); 752 753 /** 754 * Called by \c drm_device_is_agp. Typically used to determine if a 755 * card is really attached to AGP or not. 756 * 757 * \param dev DRM device handle 758 * 759 * \returns 760 * One of three values is returned depending on whether or not the 761 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 762 * (return of 1), or may or may not be AGP (return of 2). 763 */ 764 int (*device_is_agp) (struct drm_device *dev); 765 766 /** 767 * Called by vblank timestamping code. 768 * 769 * Return the current display scanout position from a crtc. 770 * 771 * \param dev DRM device. 772 * \param crtc Id of the crtc to query. 773 * \param *vpos Target location for current vertical scanout position. 774 * \param *hpos Target location for current horizontal scanout position. 775 * 776 * Returns vpos as a positive number while in active scanout area. 777 * Returns vpos as a negative number inside vblank, counting the number 778 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 779 * until start of active scanout / end of vblank." 780 * 781 * \return Flags, or'ed together as follows: 782 * 783 * DRM_SCANOUTPOS_VALID = Query successful. 784 * DRM_SCANOUTPOS_INVBL = Inside vblank. 785 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 786 * this flag means that returned position may be offset by a constant 787 * but unknown small number of scanlines wrt. real scanout position. 788 * 789 */ 790 int (*get_scanout_position) (struct drm_device *dev, int crtc, 791 int *vpos, int *hpos); 792 793 /** 794 * Called by \c drm_get_last_vbltimestamp. Should return a precise 795 * timestamp when the most recent VBLANK interval ended or will end. 796 * 797 * Specifically, the timestamp in @vblank_time should correspond as 798 * closely as possible to the time when the first video scanline of 799 * the video frame after the end of VBLANK will start scanning out, 800 * the time immediately after end of the VBLANK interval. If the 801 * @crtc is currently inside VBLANK, this will be a time in the future. 802 * If the @crtc is currently scanning out a frame, this will be the 803 * past start time of the current scanout. This is meant to adhere 804 * to the OpenML OML_sync_control extension specification. 805 * 806 * \param dev dev DRM device handle. 807 * \param crtc crtc for which timestamp should be returned. 808 * \param *max_error Maximum allowable timestamp error in nanoseconds. 809 * Implementation should strive to provide timestamp 810 * with an error of at most *max_error nanoseconds. 811 * Returns true upper bound on error for timestamp. 812 * \param *vblank_time Target location for returned vblank timestamp. 813 * \param flags 0 = Defaults, no special treatment needed. 814 * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank 815 * irq handler. Some drivers need to apply some workarounds 816 * for gpu-specific vblank irq quirks if flag is set. 817 * 818 * \returns 819 * Zero if timestamping isn't supported in current display mode or a 820 * negative number on failure. A positive status code on success, 821 * which describes how the vblank_time timestamp was computed. 822 */ 823 int (*get_vblank_timestamp) (struct drm_device *dev, int crtc, 824 int *max_error, 825 struct timeval *vblank_time, 826 unsigned flags); 827 828 /* these have to be filled in */ 829 830 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS); 831 void (*irq_preinstall) (struct drm_device *dev); 832 int (*irq_postinstall) (struct drm_device *dev); 833 void (*irq_uninstall) (struct drm_device *dev); 834 void (*set_version) (struct drm_device *dev, 835 struct drm_set_version *sv); 836 837 /* Master routines */ 838 int (*master_create)(struct drm_device *dev, struct drm_master *master); 839 void (*master_destroy)(struct drm_device *dev, struct drm_master *master); 840 /** 841 * master_set is called whenever the minor master is set. 842 * master_drop is called whenever the minor master is dropped. 843 */ 844 845 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, 846 bool from_open); 847 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv, 848 bool from_release); 849 850 /** 851 * Driver-specific constructor for drm_gem_objects, to set up 852 * obj->driver_private. 853 * 854 * Returns 0 on success. 855 */ 856 int (*gem_init_object) (struct drm_gem_object *obj); 857 void (*gem_free_object) (struct drm_gem_object *obj); 858 int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); 859 void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); 860 861#ifdef FREEBSD_NOTYET 862 /* prime: */ 863 /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */ 864 int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv, 865 uint32_t handle, uint32_t flags, int *prime_fd); 866 /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */ 867 int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv, 868 int prime_fd, uint32_t *handle); 869 /* export GEM -> dmabuf */ 870 struct dma_buf * (*gem_prime_export)(struct drm_device *dev, 871 struct drm_gem_object *obj, int flags); 872 /* import dmabuf -> GEM */ 873 struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev, 874 struct dma_buf *dma_buf); 875#endif /* defined(FREEBSD_NOTYET) */ 876 877 /* dumb alloc support */ 878 int (*dumb_create)(struct drm_file *file_priv, 879 struct drm_device *dev, 880 struct drm_mode_create_dumb *args); 881 int (*dumb_map_offset)(struct drm_file *file_priv, 882 struct drm_device *dev, uint32_t handle, 883 uint64_t *offset); 884 int (*dumb_destroy)(struct drm_file *file_priv, 885 struct drm_device *dev, 886 uint32_t handle); 887 888 /* Driver private ops for this object */ 889 struct cdev_pager_ops *gem_pager_ops; 890 891 int (*sysctl_init)(struct drm_device *dev, 892 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 893 void (*sysctl_cleanup)(struct drm_device *dev); 894 895 int major; 896 int minor; 897 int patchlevel; 898 char *name; 899 char *desc; 900 char *date; 901 902 u32 driver_features; 903 int dev_priv_size; 904 struct drm_ioctl_desc *ioctls; 905 int num_ioctls; 906 struct drm_bus *bus; 907#ifdef COMPAT_FREEBSD32 908 struct drm_ioctl_desc *compat_ioctls; 909 int *num_compat_ioctls; 910#endif 911 912 int buf_priv_size; 913}; 914 915#define DRM_MINOR_UNASSIGNED 0 916#define DRM_MINOR_LEGACY 1 917#define DRM_MINOR_CONTROL 2 918#define DRM_MINOR_RENDER 3 919 920/** 921 * DRM minor structure. This structure represents a drm minor number. 922 */ 923struct drm_minor { 924 int index; /**< Minor device number */ 925 int type; /**< Control or render */ 926 struct cdev *device; /**< Device number for mknod */ 927 device_t kdev; /**< OS device */ 928 struct drm_device *dev; 929 930 struct drm_master *master; /* currently active master for this node */ 931 struct list_head master_list; 932 struct drm_mode_group mode_group; 933 934 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 935}; 936 937/* mode specified on the command line */ 938struct drm_cmdline_mode { 939 bool specified; 940 bool refresh_specified; 941 bool bpp_specified; 942 int xres, yres; 943 int bpp; 944 int refresh; 945 bool rb; 946 bool interlace; 947 bool cvt; 948 bool margins; 949 enum drm_connector_force force; 950}; 951 952 953struct drm_pending_vblank_event { 954 struct drm_pending_event base; 955 int pipe; 956 struct drm_event_vblank event; 957}; 958 959/** 960 * DRM device structure. This structure represent a complete card that 961 * may contain multiple heads. 962 */ 963struct drm_device { 964 int if_version; /**< Highest interface version set */ 965 966 /** \name Locks */ 967 /*@{ */ 968 struct mtx count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */ 969 struct sx dev_struct_lock; /**< For others */ 970 /*@} */ 971 972 /** \name Usage Counters */ 973 /*@{ */ 974 int open_count; /**< Outstanding files open */ 975 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */ 976 atomic_t vma_count; /**< Outstanding vma areas open */ 977 int buf_use; /**< Buffers in use -- cannot alloc */ 978 atomic_t buf_alloc; /**< Buffer allocation in progress */ 979 /*@} */ 980 981 /** \name Performance counters */ 982 /*@{ */ 983 unsigned long counters; 984 enum drm_stat_type types[15]; 985 atomic_t counts[15]; 986 /*@} */ 987 988 struct list_head filelist; 989 990 /** \name Memory management */ 991 /*@{ */ 992 struct list_head maplist; /**< Linked list of regions */ 993 int map_count; /**< Number of mappable regions */ 994 struct drm_open_hash map_hash; /**< User token hash table for maps */ 995 996 /** \name Context handle management */ 997 /*@{ */ 998 struct list_head ctxlist; /**< Linked list of context handles */ 999 int ctx_count; /**< Number of context handles */ 1000 struct mtx ctxlist_mutex; /**< For ctxlist */ 1001 drm_local_map_t **context_sareas; 1002 int max_context; 1003 unsigned long *ctx_bitmap; 1004 1005 /*@} */ 1006 1007 /** \name DMA support */ 1008 /*@{ */ 1009 struct drm_device_dma *dma; /**< Optional pointer for DMA support */ 1010 /*@} */ 1011 1012 /** \name Context support */ 1013 /*@{ */ 1014 int irq_enabled; /**< True if irq handler is enabled */ 1015 atomic_t context_flag; /**< Context swapping flag */ 1016 atomic_t interrupt_flag; /**< Interruption handler flag */ 1017 atomic_t dma_flag; /**< DMA dispatch flag */ 1018 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ 1019 int last_checked; /**< Last context checked for DMA */ 1020 int last_context; /**< Last current context */ 1021 unsigned long last_switch; /**< jiffies at last context switch */ 1022 /*@} */ 1023 1024 /** \name VBLANK IRQ support */ 1025 /*@{ */ 1026 1027 /* 1028 * At load time, disabling the vblank interrupt won't be allowed since 1029 * old clients may not call the modeset ioctl and therefore misbehave. 1030 * Once the modeset ioctl *has* been called though, we can safely 1031 * disable them when unused. 1032 */ 1033 int vblank_disable_allowed; 1034 1035 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 1036 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 1037 struct mtx vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 1038 struct mtx vbl_lock; 1039 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 1040 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 1041 /* for wraparound handling */ 1042 int *vblank_enabled; /* so we don't call enable more than 1043 once per disable */ 1044 int *vblank_inmodeset; /* Display driver is setting mode */ 1045 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 1046 struct callout vblank_disable_callout; 1047 1048 u32 max_vblank_count; /**< size of vblank counter register */ 1049 1050 /** 1051 * List of events 1052 */ 1053 struct list_head vblank_event_list; 1054 struct mtx event_lock; 1055 1056 /*@} */ 1057 1058 struct drm_agp_head *agp; /**< AGP data */ 1059 1060 device_t dev; /* Device instance from newbus */ 1061 uint16_t pci_device; /* PCI device id */ 1062 uint16_t pci_vendor; /* PCI vendor id */ 1063 uint16_t pci_subdevice; /* PCI subsystem device id */ 1064 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 1065 1066 struct drm_sg_mem *sg; /**< Scatter gather memory */ 1067 unsigned int num_crtcs; /**< Number of CRTCs on this device */ 1068 void *dev_private; /**< device private data */ 1069 void *mm_private; 1070 struct drm_sigdata sigdata; /**< For block_all_signals */ 1071 sigset_t sigmask; 1072 1073 struct drm_driver *driver; 1074 struct drm_local_map *agp_buffer_map; 1075 unsigned int agp_buffer_token; 1076 struct drm_minor *control; /**< Control node for card */ 1077 struct drm_minor *primary; /**< render type primary screen head */ 1078 1079 struct drm_mode_config mode_config; /**< Current mode config */ 1080 1081 /** \name GEM information */ 1082 /*@{ */ 1083 struct sx object_name_lock; 1084 struct drm_gem_names object_names; 1085 /*@} */ 1086 int switch_power_state; 1087 1088 atomic_t unplugged; /* device has been unplugged or gone away */ 1089 1090 /* Locks */ 1091 struct mtx dma_lock; /* protects dev->dma */ 1092 struct mtx irq_lock; /* protects irq condition checks */ 1093 1094 /* Context support */ 1095 int irq; /* Interrupt used by board */ 1096 int msi_enabled; /* MSI enabled */ 1097 int irqrid; /* Interrupt used by board */ 1098 struct resource *irqr; /* Resource for interrupt used by board */ 1099 void *irqh; /* Handle from bus_setup_intr */ 1100 1101 /* Storage of resource pointers for drm_get_resource_* */ 1102#define DRM_MAX_PCI_RESOURCE 6 1103 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 1104 int pcirid[DRM_MAX_PCI_RESOURCE]; 1105 struct mtx pcir_lock; 1106 1107 int pci_domain; 1108 int pci_bus; 1109 int pci_slot; 1110 int pci_func; 1111 1112 /* Sysctl support */ 1113 struct drm_sysctl_info *sysctl; 1114 int sysctl_node_idx; 1115 1116 void *drm_ttm_bdev; 1117 1118 void *sysctl_private; 1119 char busid_str[128]; 1120 int modesetting; 1121 1122 const drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 1123}; 1124 1125#define DRM_SWITCH_POWER_ON 0 1126#define DRM_SWITCH_POWER_OFF 1 1127#define DRM_SWITCH_POWER_CHANGING 2 1128 1129static __inline__ int drm_core_check_feature(struct drm_device *dev, 1130 int feature) 1131{ 1132 return ((dev->driver->driver_features & feature) ? 1 : 0); 1133} 1134 1135static inline int drm_dev_to_irq(struct drm_device *dev) 1136{ 1137 return dev->driver->bus->get_irq(dev); 1138} 1139 1140 1141#if __OS_HAS_AGP 1142static inline int drm_core_has_AGP(struct drm_device *dev) 1143{ 1144 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1145} 1146#else 1147#define drm_core_has_AGP(dev) (0) 1148#endif 1149 1150#if __OS_HAS_MTRR 1151static inline int drm_core_has_MTRR(struct drm_device *dev) 1152{ 1153 return drm_core_check_feature(dev, DRIVER_USE_MTRR); 1154} 1155 1156#define DRM_MTRR_WC MDF_WRITECOMBINE 1157 1158int drm_mtrr_add(unsigned long offset, unsigned long size, unsigned int flags); 1159int drm_mtrr_del(int handle, unsigned long offset, unsigned long size, unsigned int flags); 1160 1161#else 1162#define drm_core_has_MTRR(dev) (0) 1163 1164#define DRM_MTRR_WC 0 1165 1166static inline int drm_mtrr_add(unsigned long offset, unsigned long size, 1167 unsigned int flags) 1168{ 1169 return 0; 1170} 1171 1172static inline int drm_mtrr_del(int handle, unsigned long offset, 1173 unsigned long size, unsigned int flags) 1174{ 1175 return 0; 1176} 1177#endif 1178 1179/******************************************************************/ 1180/** \name Internal function definitions */ 1181/*@{*/ 1182 1183 /* Driver support (drm_drv.h) */ 1184d_ioctl_t drm_ioctl; 1185extern int drm_lastclose(struct drm_device *dev); 1186 1187 /* Device support (drm_fops.h) */ 1188extern struct sx drm_global_mutex; 1189d_open_t drm_open; 1190d_read_t drm_read; 1191extern void drm_release(void *data); 1192 1193 /* Mapping support (drm_vm.h) */ 1194d_mmap_t drm_mmap; 1195int drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, 1196 vm_size_t size, struct vm_object **obj_res, int nprot); 1197d_poll_t drm_poll; 1198 1199 /* Memory management support (drm_memory.h) */ 1200extern void drm_free_agp(DRM_AGP_MEM * handle, int pages); 1201extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start); 1202#ifdef FREEBSD_NOTYET 1203extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev, 1204 struct page **pages, 1205 unsigned long num_pages, 1206 uint32_t gtt_offset, 1207 uint32_t type); 1208#endif /* FREEBSD_NOTYET */ 1209extern int drm_unbind_agp(DRM_AGP_MEM * handle); 1210 1211 /* Misc. IOCTL support (drm_ioctl.h) */ 1212extern int drm_irq_by_busid(struct drm_device *dev, void *data, 1213 struct drm_file *file_priv); 1214extern int drm_getunique(struct drm_device *dev, void *data, 1215 struct drm_file *file_priv); 1216extern int drm_setunique(struct drm_device *dev, void *data, 1217 struct drm_file *file_priv); 1218extern int drm_getmap(struct drm_device *dev, void *data, 1219 struct drm_file *file_priv); 1220extern int drm_getclient(struct drm_device *dev, void *data, 1221 struct drm_file *file_priv); 1222extern int drm_getstats(struct drm_device *dev, void *data, 1223 struct drm_file *file_priv); 1224extern int drm_getcap(struct drm_device *dev, void *data, 1225 struct drm_file *file_priv); 1226extern int drm_setversion(struct drm_device *dev, void *data, 1227 struct drm_file *file_priv); 1228extern int drm_noop(struct drm_device *dev, void *data, 1229 struct drm_file *file_priv); 1230 1231 /* Context IOCTL support (drm_context.h) */ 1232extern int drm_resctx(struct drm_device *dev, void *data, 1233 struct drm_file *file_priv); 1234extern int drm_addctx(struct drm_device *dev, void *data, 1235 struct drm_file *file_priv); 1236extern int drm_modctx(struct drm_device *dev, void *data, 1237 struct drm_file *file_priv); 1238extern int drm_getctx(struct drm_device *dev, void *data, 1239 struct drm_file *file_priv); 1240extern int drm_switchctx(struct drm_device *dev, void *data, 1241 struct drm_file *file_priv); 1242extern int drm_newctx(struct drm_device *dev, void *data, 1243 struct drm_file *file_priv); 1244extern int drm_rmctx(struct drm_device *dev, void *data, 1245 struct drm_file *file_priv); 1246 1247extern int drm_ctxbitmap_init(struct drm_device *dev); 1248extern void drm_ctxbitmap_cleanup(struct drm_device *dev); 1249extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1250 1251extern int drm_setsareactx(struct drm_device *dev, void *data, 1252 struct drm_file *file_priv); 1253extern int drm_getsareactx(struct drm_device *dev, void *data, 1254 struct drm_file *file_priv); 1255 1256 /* Authentication IOCTL support (drm_auth.h) */ 1257extern int drm_getmagic(struct drm_device *dev, void *data, 1258 struct drm_file *file_priv); 1259extern int drm_authmagic(struct drm_device *dev, void *data, 1260 struct drm_file *file_priv); 1261extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic); 1262 1263/* Cache management (drm_cache.c) */ 1264void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1265void drm_clflush_virt_range(char *addr, unsigned long length); 1266 1267 /* Locking IOCTL support (drm_lock.h) */ 1268extern int drm_lock(struct drm_device *dev, void *data, 1269 struct drm_file *file_priv); 1270extern int drm_unlock(struct drm_device *dev, void *data, 1271 struct drm_file *file_priv); 1272extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context); 1273extern void drm_idlelock_take(struct drm_lock_data *lock_data); 1274extern void drm_idlelock_release(struct drm_lock_data *lock_data); 1275 1276/* 1277 * These are exported to drivers so that they can implement fencing using 1278 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1279 */ 1280 1281extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv); 1282 1283 /* Buffer management support (drm_bufs.h) */ 1284extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request); 1285extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request); 1286extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1287 unsigned int size, enum drm_map_type type, 1288 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1289extern int drm_addmap_ioctl(struct drm_device *dev, void *data, 1290 struct drm_file *file_priv); 1291extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map); 1292extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map); 1293extern int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1294 struct drm_file *file_priv); 1295extern int drm_addbufs(struct drm_device *dev, void *data, 1296 struct drm_file *file_priv); 1297extern int drm_infobufs(struct drm_device *dev, void *data, 1298 struct drm_file *file_priv); 1299extern int drm_markbufs(struct drm_device *dev, void *data, 1300 struct drm_file *file_priv); 1301extern int drm_freebufs(struct drm_device *dev, void *data, 1302 struct drm_file *file_priv); 1303extern int drm_mapbufs(struct drm_device *dev, void *data, 1304 struct drm_file *file_priv); 1305extern int drm_order(unsigned long size); 1306 1307 /* DMA support (drm_dma.h) */ 1308extern int drm_dma_setup(struct drm_device *dev); 1309extern void drm_dma_takedown(struct drm_device *dev); 1310extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf); 1311extern void drm_core_reclaim_buffers(struct drm_device *dev, 1312 struct drm_file *filp); 1313 1314 /* IRQ support (drm_irq.h) */ 1315extern int drm_control(struct drm_device *dev, void *data, 1316 struct drm_file *file_priv); 1317extern int drm_irq_install(struct drm_device *dev); 1318extern int drm_irq_uninstall(struct drm_device *dev); 1319 1320extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1321extern int drm_wait_vblank(struct drm_device *dev, void *data, 1322 struct drm_file *filp); 1323extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1324extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1325extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1326 struct timeval *vblanktime); 1327extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1328 struct drm_pending_vblank_event *e); 1329extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1330extern int drm_vblank_get(struct drm_device *dev, int crtc); 1331extern void drm_vblank_put(struct drm_device *dev, int crtc); 1332extern void drm_vblank_off(struct drm_device *dev, int crtc); 1333extern void drm_vblank_cleanup(struct drm_device *dev); 1334extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1335 struct timeval *tvblank, unsigned flags); 1336extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1337 int crtc, int *max_error, 1338 struct timeval *vblank_time, 1339 unsigned flags, 1340 struct drm_crtc *refcrtc); 1341extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1342 1343extern bool 1344drm_mode_parse_command_line_for_connector(const char *mode_option, 1345 struct drm_connector *connector, 1346 struct drm_cmdline_mode *mode); 1347 1348extern struct drm_display_mode * 1349drm_mode_create_from_cmdline_mode(struct drm_device *dev, 1350 struct drm_cmdline_mode *cmd); 1351 1352/* Modesetting support */ 1353extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1354extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1355extern int drm_modeset_ctl(struct drm_device *dev, void *data, 1356 struct drm_file *file_priv); 1357 1358 /* AGP/GART support (drm_agpsupport.h) */ 1359extern struct drm_agp_head *drm_agp_init(struct drm_device *dev); 1360extern int drm_agp_acquire(struct drm_device *dev); 1361extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1362 struct drm_file *file_priv); 1363extern int drm_agp_release(struct drm_device *dev); 1364extern int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1365 struct drm_file *file_priv); 1366extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1367extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1368 struct drm_file *file_priv); 1369extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info); 1370extern int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1371 struct drm_file *file_priv); 1372extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1373extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1374 struct drm_file *file_priv); 1375extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1376extern int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1377 struct drm_file *file_priv); 1378extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1379extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1380 struct drm_file *file_priv); 1381extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1382extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1383 struct drm_file *file_priv); 1384 1385 /* Stub support (drm_stub.h) */ 1386extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1387 struct drm_file *file_priv); 1388extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1389 struct drm_file *file_priv); 1390struct drm_master *drm_master_create(struct drm_minor *minor); 1391extern struct drm_master *drm_master_get(struct drm_master *master); 1392extern void drm_master_put(struct drm_master **master); 1393 1394extern void drm_put_dev(struct drm_device *dev); 1395extern int drm_put_minor(struct drm_minor **minor); 1396extern void drm_unplug_dev(struct drm_device *dev); 1397extern unsigned int drm_debug; 1398extern unsigned int drm_notyet; 1399 1400extern unsigned int drm_vblank_offdelay; 1401extern unsigned int drm_timestamp_precision; 1402extern unsigned int drm_timestamp_monotonic; 1403 1404extern struct drm_local_map *drm_getsarea(struct drm_device *dev); 1405 1406 1407#ifdef FREEBSD_NOTYET 1408extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1409 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1410 int *prime_fd); 1411extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1412 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1413 1414extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1415 struct drm_file *file_priv); 1416extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1417 struct drm_file *file_priv); 1418 1419extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1420 dma_addr_t *addrs, int max_pages); 1421extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1422extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1423 1424 1425void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1426void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1427int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1428int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1429void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1430 1431int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1432int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1433 struct drm_gem_object **obj); 1434#endif /* FREEBSD_NOTYET */ 1435 1436 /* Scatter Gather Support (drm_scatter.h) */ 1437extern void drm_sg_cleanup(struct drm_sg_mem * entry); 1438extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1439 struct drm_file *file_priv); 1440extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1441extern int drm_sg_free(struct drm_device *dev, void *data, 1442 struct drm_file *file_priv); 1443 1444 /* ATI PCIGART support (ati_pcigart.h) */ 1445extern int drm_ati_pcigart_init(struct drm_device *dev, 1446 struct drm_ati_pcigart_info * gart_info); 1447extern int drm_ati_pcigart_cleanup(struct drm_device *dev, 1448 struct drm_ati_pcigart_info * gart_info); 1449 1450extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1451 size_t align, dma_addr_t maxaddr); 1452extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); 1453extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); 1454 1455/* Graphics Execution Manager library functions (drm_gem.c) */ 1456int drm_gem_init(struct drm_device *dev); 1457void drm_gem_destroy(struct drm_device *dev); 1458void drm_gem_object_release(struct drm_gem_object *obj); 1459void drm_gem_object_free(struct drm_gem_object *obj); 1460struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1461 size_t size); 1462int drm_gem_object_init(struct drm_device *dev, 1463 struct drm_gem_object *obj, size_t size); 1464int drm_gem_private_object_init(struct drm_device *dev, 1465 struct drm_gem_object *obj, size_t size); 1466void drm_gem_object_handle_free(struct drm_gem_object *obj); 1467int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1468 vm_size_t size, struct vm_object **obj_res, int nprot); 1469void drm_gem_pager_dtr(void *obj); 1470 1471#include <dev/drm2/drm_global.h> 1472 1473static inline void 1474drm_gem_object_reference(struct drm_gem_object *obj) 1475{ 1476 1477 KASSERT(obj->refcount > 0, ("Dangling obj %p", obj)); 1478 refcount_acquire(&obj->refcount); 1479} 1480 1481static inline void 1482drm_gem_object_unreference(struct drm_gem_object *obj) 1483{ 1484 1485 if (obj == NULL) 1486 return; 1487 if (refcount_release(&obj->refcount)) 1488 drm_gem_object_free(obj); 1489} 1490 1491static inline void 1492drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1493{ 1494 if (obj != NULL) { 1495 struct drm_device *dev = obj->dev; 1496 DRM_LOCK(dev); 1497 drm_gem_object_unreference(obj); 1498 DRM_UNLOCK(dev); 1499 } 1500} 1501 1502int drm_gem_handle_create(struct drm_file *file_priv, 1503 struct drm_gem_object *obj, 1504 u32 *handlep); 1505int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1506 1507static inline void 1508drm_gem_object_handle_reference(struct drm_gem_object *obj) 1509{ 1510 drm_gem_object_reference(obj); 1511 atomic_inc(&obj->handle_count); 1512} 1513 1514static inline void 1515drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1516{ 1517 if (obj == NULL) 1518 return; 1519 1520 if (atomic_read(&obj->handle_count) == 0) 1521 return; 1522 /* 1523 * Must bump handle count first as this may be the last 1524 * ref, in which case the object would disappear before we 1525 * checked for a name 1526 */ 1527 if (atomic_dec_and_test(&obj->handle_count)) 1528 drm_gem_object_handle_free(obj); 1529 drm_gem_object_unreference(obj); 1530} 1531 1532static inline void 1533drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) 1534{ 1535 if (obj == NULL) 1536 return; 1537 1538 if (atomic_read(&obj->handle_count) == 0) 1539 return; 1540 1541 /* 1542 * Must bump handle count first as this may be the last 1543 * ref, in which case the object would disappear before we 1544 * checked for a name 1545 */ 1546 1547 if (atomic_dec_and_test(&obj->handle_count)) 1548 drm_gem_object_handle_free(obj); 1549 drm_gem_object_unreference_unlocked(obj); 1550} 1551 1552void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1553int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1554 1555struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1556 struct drm_file *filp, 1557 u32 handle); 1558int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1559 struct drm_file *file_priv); 1560int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1561 struct drm_file *file_priv); 1562int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1563 struct drm_file *file_priv); 1564void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); 1565void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); 1566 1567extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev); 1568extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev); 1569extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev); 1570 1571static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, 1572 unsigned int token) 1573{ 1574 struct drm_map_list *_entry; 1575 list_for_each_entry(_entry, &dev->maplist, head) 1576 if (_entry->user_token == token) 1577 return _entry->map; 1578 return NULL; 1579} 1580 1581static __inline__ void drm_core_dropmap(struct drm_local_map *map) 1582{ 1583} 1584 1585#include <dev/drm2/drm_mem_util.h> 1586 1587extern int drm_fill_in_dev(struct drm_device *dev, 1588 struct drm_driver *driver); 1589extern void drm_cancel_fill_in_dev(struct drm_device *dev); 1590int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type); 1591/*@}*/ 1592 1593/* PCI section */ 1594int drm_pci_device_is_agp(struct drm_device *dev); 1595int drm_pci_device_is_pcie(struct drm_device *dev); 1596 1597extern int drm_get_pci_dev(device_t kdev, struct drm_device *dev, 1598 struct drm_driver *driver); 1599 1600#define DRM_PCIE_SPEED_25 1 1601#define DRM_PCIE_SPEED_50 2 1602#define DRM_PCIE_SPEED_80 4 1603 1604extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1605 1606#define drm_can_sleep() (DRM_HZ & 1) 1607 1608/* FreeBSD specific -- should be moved to drm_os_freebsd.h */ 1609 1610#define DRM_GEM_MAPPING_MASK (3ULL << 62) 1611#define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 1612#define DRM_GEM_MAX_IDX 0x3fffff 1613#define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 1614#define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 1615#define DRM_GEM_MAPPING_MAPOFF(o) \ 1616 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 1617 1618SYSCTL_DECL(_hw_drm); 1619 1620#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 1621#define DRM_DEV_UID UID_ROOT 1622#define DRM_DEV_GID GID_VIDEO 1623 1624#define DRM_WAKEUP(w) wakeup((void *)w) 1625#define DRM_WAKEUP_INT(w) wakeup(w) 1626#define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 1627 1628#define DRM_CURPROC curthread 1629#define DRM_STRUCTPROC struct thread 1630#define DRM_SPINTYPE struct mtx 1631#define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF) 1632#define DRM_SPINUNINIT(l) mtx_destroy(l) 1633#define DRM_SPINLOCK(l) mtx_lock(l) 1634#define DRM_SPINUNLOCK(u) mtx_unlock(u) 1635#define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \ 1636 mtx_lock(l); \ 1637 (void)irqflags; \ 1638} while (0) 1639#define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u) 1640#define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 1641#define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 1642 (sx_sleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout))) 1643#if defined(INVARIANTS) 1644#define DRM_LOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_XLOCKED) 1645#define DRM_UNLOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_UNLOCKED) 1646#else 1647#define DRM_LOCK_ASSERT(d) 1648#define DRM_UNLOCK_ASSERT(d) 1649#endif 1650 1651#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 1652 1653enum { 1654 DRM_IS_NOT_AGP, 1655 DRM_IS_AGP, 1656 DRM_MIGHT_BE_AGP 1657}; 1658 1659#define DRM_VERIFYAREA_READ( uaddr, size ) \ 1660 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 1661 1662#define DRM_COPY_TO_USER(user, kern, size) \ 1663 copyout(kern, user, size) 1664#define DRM_COPY_FROM_USER(kern, user, size) \ 1665 copyin(user, kern, size) 1666#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 1667 copyin(arg2, arg1, arg3) 1668#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 1669 copyout(arg2, arg1, arg3) 1670#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 1671 ((val) = fuword32(uaddr), 0) 1672 1673#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 1674 (_map) = (_dev)->context_sareas[_ctx]; \ 1675} while(0) 1676 1677/* Returns -errno to shared code */ 1678#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 1679for ( ret = 0 ; !ret && !(condition) ; ) { \ 1680 DRM_UNLOCK(dev); \ 1681 mtx_lock(&dev->irq_lock); \ 1682 if (!(condition)) \ 1683 ret = -mtx_sleep(&(queue), &dev->irq_lock, \ 1684 PCATCH, "drmwtq", (timeout)); \ 1685 if (ret == -ERESTART) \ 1686 ret = -ERESTARTSYS; \ 1687 mtx_unlock(&dev->irq_lock); \ 1688 DRM_LOCK(dev); \ 1689} 1690 1691#define dev_err(dev, fmt, ...) \ 1692 device_printf((dev), "error: " fmt, ## __VA_ARGS__) 1693#define dev_warn(dev, fmt, ...) \ 1694 device_printf((dev), "warning: " fmt, ## __VA_ARGS__) 1695#define dev_info(dev, fmt, ...) \ 1696 device_printf((dev), "info: " fmt, ## __VA_ARGS__) 1697#define dev_dbg(dev, fmt, ...) do { \ 1698 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 1699 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 1700 } \ 1701} while (0) 1702 1703struct drm_msi_blacklist_entry 1704{ 1705 int vendor; 1706 int device; 1707}; 1708 1709struct drm_vblank_info { 1710 wait_queue_head_t queue; /* vblank wait queue */ 1711 atomic_t count; /* number of VBLANK interrupts */ 1712 /* (driver must alloc the right number of counters) */ 1713 atomic_t refcount; /* number of users of vblank interrupts */ 1714 u32 last; /* protected by dev->vbl_lock, used */ 1715 /* for wraparound handling */ 1716 int enabled; /* so we don't call enable more than */ 1717 /* once per disable */ 1718 int inmodeset; /* Display driver is setting mode */ 1719}; 1720 1721#ifndef DMA_BIT_MASK 1722#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 1723#endif 1724 1725#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 1726 1727enum dmi_field { 1728 DMI_NONE, 1729 DMI_BIOS_VENDOR, 1730 DMI_BIOS_VERSION, 1731 DMI_BIOS_DATE, 1732 DMI_SYS_VENDOR, 1733 DMI_PRODUCT_NAME, 1734 DMI_PRODUCT_VERSION, 1735 DMI_PRODUCT_SERIAL, 1736 DMI_PRODUCT_UUID, 1737 DMI_BOARD_VENDOR, 1738 DMI_BOARD_NAME, 1739 DMI_BOARD_VERSION, 1740 DMI_BOARD_SERIAL, 1741 DMI_BOARD_ASSET_TAG, 1742 DMI_CHASSIS_VENDOR, 1743 DMI_CHASSIS_TYPE, 1744 DMI_CHASSIS_VERSION, 1745 DMI_CHASSIS_SERIAL, 1746 DMI_CHASSIS_ASSET_TAG, 1747 DMI_STRING_MAX, 1748}; 1749 1750struct dmi_strmatch { 1751 unsigned char slot; 1752 char substr[79]; 1753}; 1754 1755struct dmi_system_id { 1756 int (*callback)(const struct dmi_system_id *); 1757 const char *ident; 1758 struct dmi_strmatch matches[4]; 1759}; 1760#define DMI_MATCH(a, b) {(a), (b)} 1761bool dmi_check_system(const struct dmi_system_id *); 1762 1763/* Device setup support (drm_drv.c) */ 1764int drm_probe_helper(device_t kdev, const drm_pci_id_list_t *idlist); 1765int drm_attach_helper(device_t kdev, const drm_pci_id_list_t *idlist, 1766 struct drm_driver *driver); 1767int drm_generic_suspend(device_t kdev); 1768int drm_generic_resume(device_t kdev); 1769int drm_generic_detach(device_t kdev); 1770 1771void drm_event_wakeup(struct drm_pending_event *e); 1772 1773int drm_add_busid_modesetting(struct drm_device *dev, 1774 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1775 1776/* Buffer management support (drm_bufs.c) */ 1777unsigned long drm_get_resource_start(struct drm_device *dev, 1778 unsigned int resource); 1779unsigned long drm_get_resource_len(struct drm_device *dev, 1780 unsigned int resource); 1781 1782/* IRQ support (drm_irq.c) */ 1783irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 1784void drm_driver_irq_preinstall(struct drm_device *dev); 1785void drm_driver_irq_postinstall(struct drm_device *dev); 1786void drm_driver_irq_uninstall(struct drm_device *dev); 1787 1788/* sysctl support (drm_sysctl.h) */ 1789extern int drm_sysctl_init(struct drm_device *dev); 1790extern int drm_sysctl_cleanup(struct drm_device *dev); 1791 1792int drm_version(struct drm_device *dev, void *data, 1793 struct drm_file *file_priv); 1794 1795/* consistent PCI memory functions (drm_pci.c) */ 1796int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); 1797int drm_pci_set_unique(struct drm_device *dev, struct drm_master *master, 1798 struct drm_unique *u); 1799int drm_pci_agp_init(struct drm_device *dev); 1800int drm_pci_enable_msi(struct drm_device *dev); 1801void drm_pci_disable_msi(struct drm_device *dev); 1802 1803struct ttm_bo_device; 1804int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1805 vm_size_t size, struct vm_object **obj_res, int nprot); 1806struct ttm_buffer_object; 1807void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1808 1809#endif /* __KERNEL__ */ 1810#endif 1811