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