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/param.h> 80 #include <machine/pmap.h> 81 #include <machine/bus.h> 82 #include <machine/resource.h> 83 #if defined(__i386__) || defined(__amd64__) 84 #include <machine/specialreg.h> 85 #endif 86 #include <machine/sysarch.h> 87 #include <sys/endian.h> 88 #include <sys/mman.h> 89 #include <sys/rman.h> 90 #include <sys/memrange.h> 91 #include <dev/agp/agpvar.h> 92 #include <sys/agpio.h> 93 #include <sys/mutex.h> 94 #include <dev/pci/pcivar.h> 95 #include <dev/pci/pcireg.h> 96 #include <sys/selinfo.h> 97 #include <sys/bus.h> 98 99 #include <dev/drm2/drm.h> 100 #include <dev/drm2/drm_sarea.h> 101 102 #include <dev/drm2/drm_atomic.h> 103 #include <dev/drm2/drm_linux_list.h> 104 #include <dev/drm2/drm_gem_names.h> 105 106 #include <dev/drm2/drm_os_freebsd.h> 107 108 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))) 109 #define __OS_HAS_MTRR (defined(CONFIG_MTRR)) 110 111 struct drm_file; 112 struct drm_device; 113 114 #include <dev/drm2/drm_hashtab.h> 115 #include <dev/drm2/drm_mm.h> 116 117 #include "opt_compat.h" 118 #include "opt_drm.h" 119 #include "opt_syscons.h" 120 #ifdef DRM_DEBUG 121 #undef DRM_DEBUG 122 #define DRM_DEBUG_DEFAULT_ON 1 123 #endif /* DRM_DEBUG */ 124 125 #define DRM_DEBUGBITS_DEBUG 0x1 126 #define DRM_DEBUGBITS_KMS 0x2 127 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 128 129 #undef DRM_LINUX 130 #define DRM_LINUX 0 131 132 /***********************************************************************/ 133 /** \name DRM template customization defaults */ 134 /*@{*/ 135 136 /* driver capabilities and requirements mask */ 137 #define DRIVER_USE_AGP 0x1 138 #define DRIVER_REQUIRE_AGP 0x2 139 #define DRIVER_USE_MTRR 0x4 140 #define DRIVER_PCI_DMA 0x8 141 #define DRIVER_SG 0x10 142 #define DRIVER_HAVE_DMA 0x20 143 #define DRIVER_HAVE_IRQ 0x40 144 #define DRIVER_IRQ_SHARED 0x80 145 #define DRIVER_IRQ_VBL 0x100 146 #define DRIVER_DMA_QUEUE 0x200 147 #define DRIVER_FB_DMA 0x400 148 #define DRIVER_IRQ_VBL2 0x800 149 #define DRIVER_GEM 0x1000 150 #define DRIVER_MODESET 0x2000 151 #define DRIVER_PRIME 0x4000 152 153 #define DRIVER_BUS_PCI 0x1 154 #define DRIVER_BUS_PLATFORM 0x2 155 #define DRIVER_BUS_USB 0x3 156 157 /***********************************************************************/ 158 /** \name Begin the DRM... */ 159 /*@{*/ 160 161 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then 162 also include looping detection. */ 163 164 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ 165 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */ 166 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */ 167 #define DRM_LOOPING_LIMIT 5000000 168 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */ 169 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */ 170 171 #define DRM_FLAG_DEBUG 0x01 172 173 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 174 #define DRM_MAP_HASH_OFFSET 0x10000000 175 176 /*@}*/ 177 178 /***********************************************************************/ 179 /** \name Macros to make printk easier */ 180 /*@{*/ 181 182 /** 183 * Error output. 184 * 185 * \param fmt printf() like format string. 186 * \param arg arguments 187 */ 188 #define DRM_ERROR(fmt, ...) \ 189 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 190 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 191 192 #define DRM_WARNING(fmt, ...) printf("warning: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 193 #define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 194 195 /** 196 * Debug output. 197 * 198 * \param fmt printf() like format string. 199 * \param arg arguments 200 */ 201 #define DRM_DEBUG(fmt, ...) do { \ 202 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 203 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 204 __func__ , ##__VA_ARGS__); \ 205 } while (0) 206 207 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 208 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 209 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 210 __func__ , ##__VA_ARGS__); \ 211 } while (0) 212 213 #define DRM_DEBUG_KMS(fmt, ...) do { \ 214 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 215 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 216 __func__ , ##__VA_ARGS__); \ 217 } while (0) 218 219 #define DRM_LOG(fmt, ...) do { \ 220 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 221 printf("[" DRM_NAME "]:pid%d:%s]" fmt, DRM_CURRENTPID, \ 222 __func__ , ##__VA_ARGS__); \ 223 } while (0) 224 225 #define DRM_LOG_KMS(fmt, ...) do { \ 226 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 227 printf("[" DRM_NAME "]:KMS:pid%d:%s]" fmt, DRM_CURRENTPID,\ 228 __func__ , ##__VA_ARGS__); \ 229 } while (0) 230 231 #define DRM_LOG_MODE(fmt, ...) do { \ 232 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 233 printf("[" DRM_NAME "]:pid%d:%s]" fmt, DRM_CURRENTPID, \ 234 __func__ , ##__VA_ARGS__); \ 235 } while (0) 236 237 #define DRM_LOG_DRIVER(fmt, ...) do { \ 238 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 239 printf("[" DRM_NAME "]:KMS:pid%d:%s]" fmt, DRM_CURRENTPID,\ 240 __func__ , ##__VA_ARGS__); \ 241 } while (0) 242 243 244 /*@}*/ 245 246 /***********************************************************************/ 247 /** \name Internal types and structures */ 248 /*@{*/ 249 250 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x) 251 252 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1)) 253 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x)) 254 255 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 256 257 /** 258 * Test that the hardware lock is held by the caller, returning otherwise. 259 * 260 * \param dev DRM device. 261 * \param filp file pointer of the caller. 262 */ 263 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \ 264 do { \ 265 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \ 266 _file_priv->master->lock.file_priv != _file_priv) { \ 267 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\ 268 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\ 269 _file_priv->master->lock.file_priv, _file_priv); \ 270 return -EINVAL; \ 271 } \ 272 } while (0) 273 274 /** 275 * Ioctl function type. 276 * 277 * \param inode device inode. 278 * \param file_priv DRM file private pointer. 279 * \param cmd command. 280 * \param arg argument. 281 */ 282 typedef int drm_ioctl_t(struct drm_device *dev, void *data, 283 struct drm_file *file_priv); 284 285 #define DRM_IOCTL_NR(n) ((n) & 0xff) 286 #define DRM_MAJOR 226 287 288 #define DRM_AUTH 0x1 289 #define DRM_MASTER 0x2 290 #define DRM_ROOT_ONLY 0x4 291 #define DRM_CONTROL_ALLOW 0x8 292 #define DRM_UNLOCKED 0x10 293 294 struct drm_ioctl_desc { 295 unsigned long cmd; 296 int flags; 297 drm_ioctl_t *func; 298 unsigned int cmd_drv; 299 }; 300 301 /** 302 * Creates a driver or general drm_ioctl_desc array entry for the given 303 * ioctl, for use by drm_ioctl(). 304 */ 305 306 #define DRM_IOCTL_DEF(ioctl, _func, _flags) \ 307 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0} 308 309 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 310 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 311 312 struct drm_magic_entry { 313 struct list_head head; 314 struct drm_hash_item hash_item; 315 struct drm_file *priv; 316 }; 317 318 /** 319 * DMA buffer. 320 */ 321 struct drm_buf { 322 int idx; /**< Index into master buflist */ 323 int total; /**< Buffer size */ 324 int order; /**< log-base-2(total) */ 325 int used; /**< Amount of buffer in use (for DMA) */ 326 unsigned long offset; /**< Byte offset (used internally) */ 327 void *address; /**< Address of buffer */ 328 unsigned long bus_address; /**< Bus address of buffer */ 329 struct drm_buf *next; /**< Kernel-only: used for free list */ 330 __volatile__ int waiting; /**< On kernel DMA queue */ 331 __volatile__ int pending; /**< On hardware DMA queue */ 332 struct drm_file *file_priv; /**< Private of holding file descr */ 333 int context; /**< Kernel queue for this buffer */ 334 int while_locked; /**< Dispatch this buffer while locked */ 335 enum { 336 DRM_LIST_NONE = 0, 337 DRM_LIST_FREE = 1, 338 DRM_LIST_WAIT = 2, 339 DRM_LIST_PEND = 3, 340 DRM_LIST_PRIO = 4, 341 DRM_LIST_RECLAIM = 5 342 } list; /**< Which list we're on */ 343 344 int dev_priv_size; /**< Size of buffer private storage */ 345 void *dev_private; /**< Per-buffer private storage */ 346 }; 347 348 struct drm_freelist { 349 int initialized; /**< Freelist in use */ 350 atomic_t count; /**< Number of free buffers */ 351 struct drm_buf *next; /**< End pointer */ 352 353 #ifdef FREEBSD_NOTYET 354 wait_queue_head_t waiting; /**< Processes waiting on free bufs */ 355 #endif /* defined(FREEBSD_NOTYET) */ 356 int low_mark; /**< Low water mark */ 357 int high_mark; /**< High water mark */ 358 #ifdef FREEBSD_NOTYET 359 atomic_t wfh; /**< If waiting for high mark */ 360 spinlock_t lock; 361 #endif /* defined(FREEBSD_NOTYET) */ 362 }; 363 364 typedef struct drm_dma_handle { 365 void *vaddr; 366 bus_addr_t busaddr; 367 bus_dma_tag_t tag; 368 bus_dmamap_t map; 369 } drm_dma_handle_t; 370 371 /** 372 * Buffer entry. There is one of this for each buffer size order. 373 */ 374 struct drm_buf_entry { 375 int buf_size; /**< size */ 376 int buf_count; /**< number of buffers */ 377 struct drm_buf *buflist; /**< buffer list */ 378 int seg_count; 379 int page_order; 380 struct drm_dma_handle **seglist; 381 382 struct drm_freelist freelist; 383 }; 384 385 /* Event queued up for userspace to read */ 386 struct drm_pending_event { 387 struct drm_event *event; 388 struct list_head link; 389 struct drm_file *file_priv; 390 pid_t pid; /* pid of requester, no guarantee it's valid by the time 391 we deliver the event, for tracing only */ 392 void (*destroy)(struct drm_pending_event *event); 393 }; 394 395 /* initial implementaton using a linked list - todo hashtab */ 396 struct drm_prime_file_private { 397 struct list_head head; 398 struct mtx lock; 399 }; 400 401 struct drm_file { 402 int authenticated; 403 pid_t pid; 404 uid_t uid; 405 drm_magic_t magic; 406 unsigned long ioctl_count; 407 struct list_head lhead; 408 struct drm_minor *minor; 409 unsigned long lock_count; 410 411 void *driver_priv; 412 struct drm_gem_names object_names; 413 414 int is_master; /* this file private is a master for a minor */ 415 struct drm_master *master; /* master this node is currently associated with 416 N.B. not always minor->master */ 417 struct list_head fbs; 418 419 struct selinfo event_poll; 420 struct list_head event_list; 421 int event_space; 422 423 struct drm_prime_file_private prime; 424 }; 425 426 /** 427 * Lock data. 428 */ 429 struct drm_lock_data { 430 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 431 /** Private of lock holder's file (NULL=kernel) */ 432 struct drm_file *file_priv; 433 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 434 unsigned long lock_time; /**< Time of last lock in jiffies */ 435 struct mtx spinlock; 436 uint32_t kernel_waiters; 437 uint32_t user_waiters; 438 int idle_has_lock; 439 }; 440 441 /** 442 * DMA data. 443 */ 444 struct drm_device_dma { 445 446 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 447 int buf_count; /**< total number of buffers */ 448 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 449 int seg_count; 450 int page_count; /**< number of pages */ 451 unsigned long *pagelist; /**< page list */ 452 unsigned long byte_count; 453 enum { 454 _DRM_DMA_USE_AGP = 0x01, 455 _DRM_DMA_USE_SG = 0x02, 456 _DRM_DMA_USE_FB = 0x04, 457 _DRM_DMA_USE_PCI_RO = 0x08 458 } flags; 459 460 }; 461 462 /** 463 * AGP memory entry. Stored as a doubly linked list. 464 */ 465 struct drm_agp_mem { 466 unsigned long handle; /**< handle */ 467 DRM_AGP_MEM *memory; 468 unsigned long bound; /**< address */ 469 int pages; 470 struct list_head head; 471 }; 472 473 /** 474 * AGP data. 475 * 476 * \sa drm_agp_init() and drm_device::agp. 477 */ 478 struct drm_agp_head { 479 DRM_AGP_KERN agp_info; /**< AGP device information */ 480 struct list_head memory; 481 unsigned long mode; /**< AGP mode */ 482 device_t bridge; 483 int enabled; /**< whether the AGP bus as been enabled */ 484 int acquired; /**< whether the AGP device has been acquired */ 485 unsigned long base; 486 int agp_mtrr; 487 int cant_use_aperture; 488 }; 489 490 /** 491 * Scatter-gather memory. 492 */ 493 struct drm_sg_mem { 494 vm_offset_t vaddr; 495 vm_paddr_t *busaddr; 496 vm_pindex_t pages; 497 }; 498 499 struct drm_sigdata { 500 int context; 501 struct drm_hw_lock *lock; 502 }; 503 504 /** 505 * Kernel side of a mapping 506 */ 507 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 508 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 509 510 struct drm_local_map { 511 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 512 unsigned long size; /**< Requested physical size (bytes) */ 513 enum drm_map_type type; /**< Type of memory to map */ 514 enum drm_map_flags flags; /**< Flags */ 515 void *handle; /**< User-space: "Handle" to pass to mmap() */ 516 /**< Kernel-space: kernel-virtual address */ 517 int mtrr; /**< MTRR slot used */ 518 519 /* Private data */ 520 drm_dma_handle_t *dmah; 521 }; 522 523 typedef struct drm_local_map drm_local_map_t; 524 525 /** 526 * Mappings list 527 */ 528 struct drm_map_list { 529 struct list_head head; /**< list head */ 530 struct drm_hash_item hash; 531 struct drm_local_map *map; /**< mapping */ 532 uint64_t user_token; 533 struct drm_master *master; 534 struct drm_mm_node *file_offset_node; /**< fake offset */ 535 }; 536 537 /** 538 * Context handle list 539 */ 540 struct drm_ctx_list { 541 struct list_head head; /**< list head */ 542 drm_context_t handle; /**< context handle */ 543 struct drm_file *tag; /**< associated fd private data */ 544 }; 545 546 /* location of GART table */ 547 #define DRM_ATI_GART_MAIN 1 548 #define DRM_ATI_GART_FB 2 549 550 #define DRM_ATI_GART_PCI 1 551 #define DRM_ATI_GART_PCIE 2 552 #define DRM_ATI_GART_IGP 3 553 554 struct drm_ati_pcigart_info { 555 int gart_table_location; 556 int gart_reg_if; 557 void *addr; 558 dma_addr_t bus_addr; 559 dma_addr_t table_mask; 560 struct drm_dma_handle *table_handle; 561 struct drm_local_map mapping; 562 int table_size; 563 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table FIXME */ 564 }; 565 566 /** 567 * GEM specific mm private for tracking GEM objects 568 */ 569 struct drm_gem_mm { 570 struct unrhdr *idxunr; 571 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 572 }; 573 574 /** 575 * This structure defines the drm_mm memory object, which will be used by the 576 * DRM for its buffer objects. 577 */ 578 struct drm_gem_object { 579 /** Reference count of this object */ 580 u_int refcount; 581 582 /** Handle count of this object. Each handle also holds a reference */ 583 atomic_t handle_count; /* number of handles on this object */ 584 585 /** Related drm device */ 586 struct drm_device *dev; 587 588 /** File representing the shmem storage: filp in Linux parlance */ 589 vm_object_t vm_obj; 590 591 /* Mapping info for this object */ 592 bool on_map; 593 struct drm_hash_item map_list; 594 595 /** 596 * Size of the object, in bytes. Immutable over the object's 597 * lifetime. 598 */ 599 size_t size; 600 601 /** 602 * Global name for this object, starts at 1. 0 means unnamed. 603 * Access is covered by the object_name_lock in the related drm_device 604 */ 605 int name; 606 607 /** 608 * Memory domains. These monitor which caches contain read/write data 609 * related to the object. When transitioning from one set of domains 610 * to another, the driver is called to ensure that caches are suitably 611 * flushed and invalidated 612 */ 613 uint32_t read_domains; 614 uint32_t write_domain; 615 616 /** 617 * While validating an exec operation, the 618 * new read/write domain values are computed here. 619 * They will be transferred to the above values 620 * at the point that any cache flushing occurs 621 */ 622 uint32_t pending_read_domains; 623 uint32_t pending_write_domain; 624 625 void *driver_private; 626 627 #ifdef FREEBSD_NOTYET 628 /* dma buf exported from this GEM object */ 629 struct dma_buf *export_dma_buf; 630 631 /* dma buf attachment backing this object */ 632 struct dma_buf_attachment *import_attach; 633 #endif /* FREEBSD_NOTYET */ 634 }; 635 636 #include <dev/drm2/drm_crtc.h> 637 638 /* per-master structure */ 639 struct drm_master { 640 641 u_int refcount; /* refcount for this master */ 642 643 struct list_head head; /**< each minor contains a list of masters */ 644 struct drm_minor *minor; /**< link back to minor we are a master for */ 645 646 char *unique; /**< Unique identifier: e.g., busid */ 647 int unique_len; /**< Length of unique field */ 648 int unique_size; /**< amount allocated */ 649 650 int blocked; /**< Blocked due to VC switch? */ 651 652 /** \name Authentication */ 653 /*@{ */ 654 struct drm_open_hash magiclist; 655 struct list_head magicfree; 656 /*@} */ 657 658 struct drm_lock_data lock; /**< Information on hardware lock */ 659 660 void *driver_priv; /**< Private structure for driver to use */ 661 }; 662 663 /* Size of ringbuffer for vblank timestamps. Just double-buffer 664 * in initial implementation. 665 */ 666 #define DRM_VBLANKTIME_RBSIZE 2 667 668 /* Flags and return codes for get_vblank_timestamp() driver function. */ 669 #define DRM_CALLED_FROM_VBLIRQ 1 670 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 671 #define DRM_VBLANKTIME_INVBL (1 << 1) 672 673 /* get_scanout_position() return flags */ 674 #define DRM_SCANOUTPOS_VALID (1 << 0) 675 #define DRM_SCANOUTPOS_INVBL (1 << 1) 676 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 677 678 struct drm_bus { 679 int bus_type; 680 int (*get_irq)(struct drm_device *dev); 681 void (*free_irq)(struct drm_device *dev); 682 const char *(*get_name)(struct drm_device *dev); 683 int (*set_busid)(struct drm_device *dev, struct drm_master *master); 684 int (*set_unique)(struct drm_device *dev, struct drm_master *master, 685 struct drm_unique *unique); 686 int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p); 687 /* hooks that are for PCI */ 688 int (*agp_init)(struct drm_device *dev); 689 690 }; 691 692 /** 693 * DRM driver structure. This structure represent the common code for 694 * a family of cards. There will one drm_device for each card present 695 * in this family 696 */ 697 struct drm_driver { 698 int (*load) (struct drm_device *, unsigned long flags); 699 int (*firstopen) (struct drm_device *); 700 int (*open) (struct drm_device *, struct drm_file *); 701 void (*preclose) (struct drm_device *, struct drm_file *file_priv); 702 void (*postclose) (struct drm_device *, struct drm_file *); 703 void (*lastclose) (struct drm_device *); 704 int (*unload) (struct drm_device *); 705 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); 706 int (*dma_quiescent) (struct drm_device *); 707 int (*context_dtor) (struct drm_device *dev, int context); 708 709 /** 710 * get_vblank_counter - get raw hardware vblank counter 711 * @dev: DRM device 712 * @crtc: counter to fetch 713 * 714 * Driver callback for fetching a raw hardware vblank counter for @crtc. 715 * If a device doesn't have a hardware counter, the driver can simply 716 * return the value of drm_vblank_count. The DRM core will account for 717 * missed vblank events while interrupts where disabled based on system 718 * timestamps. 719 * 720 * Wraparound handling and loss of events due to modesetting is dealt 721 * with in the DRM core code. 722 * 723 * RETURNS 724 * Raw vblank counter value. 725 */ 726 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc); 727 728 /** 729 * enable_vblank - enable vblank interrupt events 730 * @dev: DRM device 731 * @crtc: which irq to enable 732 * 733 * Enable vblank interrupts for @crtc. If the device doesn't have 734 * a hardware vblank counter, this routine should be a no-op, since 735 * interrupts will have to stay on to keep the count accurate. 736 * 737 * RETURNS 738 * Zero on success, appropriate errno if the given @crtc's vblank 739 * interrupt cannot be enabled. 740 */ 741 int (*enable_vblank) (struct drm_device *dev, int crtc); 742 743 /** 744 * disable_vblank - disable vblank interrupt events 745 * @dev: DRM device 746 * @crtc: which irq to enable 747 * 748 * Disable vblank interrupts for @crtc. If the device doesn't have 749 * a hardware vblank counter, this routine should be a no-op, since 750 * interrupts will have to stay on to keep the count accurate. 751 */ 752 void (*disable_vblank) (struct drm_device *dev, int crtc); 753 754 /** 755 * Called by \c drm_device_is_agp. Typically used to determine if a 756 * card is really attached to AGP or not. 757 * 758 * \param dev DRM device handle 759 * 760 * \returns 761 * One of three values is returned depending on whether or not the 762 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 763 * (return of 1), or may or may not be AGP (return of 2). 764 */ 765 int (*device_is_agp) (struct drm_device *dev); 766 767 /** 768 * Called by vblank timestamping code. 769 * 770 * Return the current display scanout position from a crtc. 771 * 772 * \param dev DRM device. 773 * \param crtc Id of the crtc to query. 774 * \param *vpos Target location for current vertical scanout position. 775 * \param *hpos Target location for current horizontal scanout position. 776 * 777 * Returns vpos as a positive number while in active scanout area. 778 * Returns vpos as a negative number inside vblank, counting the number 779 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 780 * until start of active scanout / end of vblank." 781 * 782 * \return Flags, or'ed together as follows: 783 * 784 * DRM_SCANOUTPOS_VALID = Query successful. 785 * DRM_SCANOUTPOS_INVBL = Inside vblank. 786 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 787 * this flag means that returned position may be offset by a constant 788 * but unknown small number of scanlines wrt. real scanout position. 789 * 790 */ 791 int (*get_scanout_position) (struct drm_device *dev, int crtc, 792 int *vpos, int *hpos); 793 794 /** 795 * Called by \c drm_get_last_vbltimestamp. Should return a precise 796 * timestamp when the most recent VBLANK interval ended or will end. 797 * 798 * Specifically, the timestamp in @vblank_time should correspond as 799 * closely as possible to the time when the first video scanline of 800 * the video frame after the end of VBLANK will start scanning out, 801 * the time immediately after end of the VBLANK interval. If the 802 * @crtc is currently inside VBLANK, this will be a time in the future. 803 * If the @crtc is currently scanning out a frame, this will be the 804 * past start time of the current scanout. This is meant to adhere 805 * to the OpenML OML_sync_control extension specification. 806 * 807 * \param dev dev DRM device handle. 808 * \param crtc crtc for which timestamp should be returned. 809 * \param *max_error Maximum allowable timestamp error in nanoseconds. 810 * Implementation should strive to provide timestamp 811 * with an error of at most *max_error nanoseconds. 812 * Returns true upper bound on error for timestamp. 813 * \param *vblank_time Target location for returned vblank timestamp. 814 * \param flags 0 = Defaults, no special treatment needed. 815 * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank 816 * irq handler. Some drivers need to apply some workarounds 817 * for gpu-specific vblank irq quirks if flag is set. 818 * 819 * \returns 820 * Zero if timestamping isn't supported in current display mode or a 821 * negative number on failure. A positive status code on success, 822 * which describes how the vblank_time timestamp was computed. 823 */ 824 int (*get_vblank_timestamp) (struct drm_device *dev, int crtc, 825 int *max_error, 826 struct timeval *vblank_time, 827 unsigned flags); 828 829 /* these have to be filled in */ 830 831 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS); 832 void (*irq_preinstall) (struct drm_device *dev); 833 int (*irq_postinstall) (struct drm_device *dev); 834 void (*irq_uninstall) (struct drm_device *dev); 835 void (*set_version) (struct drm_device *dev, 836 struct drm_set_version *sv); 837 838 /* Master routines */ 839 int (*master_create)(struct drm_device *dev, struct drm_master *master); 840 void (*master_destroy)(struct drm_device *dev, struct drm_master *master); 841 /** 842 * master_set is called whenever the minor master is set. 843 * master_drop is called whenever the minor master is dropped. 844 */ 845 846 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, 847 bool from_open); 848 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv, 849 bool from_release); 850 851 /** 852 * Driver-specific constructor for drm_gem_objects, to set up 853 * obj->driver_private. 854 * 855 * Returns 0 on success. 856 */ 857 int (*gem_init_object) (struct drm_gem_object *obj); 858 void (*gem_free_object) (struct drm_gem_object *obj); 859 int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); 860 void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); 861 862 #ifdef FREEBSD_NOTYET 863 /* prime: */ 864 /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */ 865 int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv, 866 uint32_t handle, uint32_t flags, int *prime_fd); 867 /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */ 868 int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv, 869 int prime_fd, uint32_t *handle); 870 /* export GEM -> dmabuf */ 871 struct dma_buf * (*gem_prime_export)(struct drm_device *dev, 872 struct drm_gem_object *obj, int flags); 873 /* import dmabuf -> GEM */ 874 struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev, 875 struct dma_buf *dma_buf); 876 #endif /* defined(FREEBSD_NOTYET) */ 877 878 /* dumb alloc support */ 879 int (*dumb_create)(struct drm_file *file_priv, 880 struct drm_device *dev, 881 struct drm_mode_create_dumb *args); 882 int (*dumb_map_offset)(struct drm_file *file_priv, 883 struct drm_device *dev, uint32_t handle, 884 uint64_t *offset); 885 int (*dumb_destroy)(struct drm_file *file_priv, 886 struct drm_device *dev, 887 uint32_t handle); 888 889 /* Driver private ops for this object */ 890 struct cdev_pager_ops *gem_pager_ops; 891 892 int (*sysctl_init)(struct drm_device *dev, 893 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 894 void (*sysctl_cleanup)(struct drm_device *dev); 895 896 int major; 897 int minor; 898 int patchlevel; 899 char *name; 900 char *desc; 901 char *date; 902 903 u32 driver_features; 904 int dev_priv_size; 905 struct drm_ioctl_desc *ioctls; 906 int num_ioctls; 907 struct drm_bus *bus; 908 #ifdef COMPAT_FREEBSD32 909 struct drm_ioctl_desc *compat_ioctls; 910 int *num_compat_ioctls; 911 #endif 912 913 int buf_priv_size; 914 }; 915 916 #define DRM_MINOR_UNASSIGNED 0 917 #define DRM_MINOR_LEGACY 1 918 #define DRM_MINOR_CONTROL 2 919 #define DRM_MINOR_RENDER 3 920 921 /** 922 * DRM minor structure. This structure represents a drm minor number. 923 */ 924 struct drm_minor { 925 int index; /**< Minor device number */ 926 int type; /**< Control or render */ 927 struct cdev *device; /**< Device number for mknod */ 928 device_t kdev; /**< OS device */ 929 struct drm_device *dev; 930 931 struct drm_master *master; /* currently active master for this node */ 932 struct list_head master_list; 933 struct drm_mode_group mode_group; 934 935 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 936 }; 937 938 /* mode specified on the command line */ 939 struct drm_cmdline_mode { 940 bool specified; 941 bool refresh_specified; 942 bool bpp_specified; 943 int xres, yres; 944 int bpp; 945 int refresh; 946 bool rb; 947 bool interlace; 948 bool cvt; 949 bool margins; 950 enum drm_connector_force force; 951 }; 952 953 954 struct drm_pending_vblank_event { 955 struct drm_pending_event base; 956 int pipe; 957 struct drm_event_vblank event; 958 }; 959 960 /** 961 * DRM device structure. This structure represent a complete card that 962 * may contain multiple heads. 963 */ 964 struct drm_device { 965 int if_version; /**< Highest interface version set */ 966 967 /** \name Locks */ 968 /*@{ */ 969 struct mtx count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */ 970 struct sx dev_struct_lock; /**< For others */ 971 /*@} */ 972 973 /** \name Usage Counters */ 974 /*@{ */ 975 int open_count; /**< Outstanding files open */ 976 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */ 977 atomic_t vma_count; /**< Outstanding vma areas open */ 978 int buf_use; /**< Buffers in use -- cannot alloc */ 979 atomic_t buf_alloc; /**< Buffer allocation in progress */ 980 /*@} */ 981 982 /** \name Performance counters */ 983 /*@{ */ 984 unsigned long counters; 985 enum drm_stat_type types[15]; 986 atomic_t counts[15]; 987 /*@} */ 988 989 struct list_head filelist; 990 991 /** \name Memory management */ 992 /*@{ */ 993 struct list_head maplist; /**< Linked list of regions */ 994 int map_count; /**< Number of mappable regions */ 995 struct drm_open_hash map_hash; /**< User token hash table for maps */ 996 997 /** \name Context handle management */ 998 /*@{ */ 999 struct list_head ctxlist; /**< Linked list of context handles */ 1000 int ctx_count; /**< Number of context handles */ 1001 struct mtx ctxlist_mutex; /**< For ctxlist */ 1002 drm_local_map_t **context_sareas; 1003 int max_context; 1004 unsigned long *ctx_bitmap; 1005 1006 /*@} */ 1007 1008 /** \name DMA support */ 1009 /*@{ */ 1010 struct drm_device_dma *dma; /**< Optional pointer for DMA support */ 1011 /*@} */ 1012 1013 /** \name Context support */ 1014 /*@{ */ 1015 int irq_enabled; /**< True if irq handler is enabled */ 1016 atomic_t context_flag; /**< Context swapping flag */ 1017 atomic_t interrupt_flag; /**< Interruption handler flag */ 1018 atomic_t dma_flag; /**< DMA dispatch flag */ 1019 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ 1020 int last_checked; /**< Last context checked for DMA */ 1021 int last_context; /**< Last current context */ 1022 unsigned long last_switch; /**< jiffies at last context switch */ 1023 /*@} */ 1024 1025 /** \name VBLANK IRQ support */ 1026 /*@{ */ 1027 1028 /* 1029 * At load time, disabling the vblank interrupt won't be allowed since 1030 * old clients may not call the modeset ioctl and therefore misbehave. 1031 * Once the modeset ioctl *has* been called though, we can safely 1032 * disable them when unused. 1033 */ 1034 int vblank_disable_allowed; 1035 1036 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 1037 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 1038 struct mtx vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 1039 struct mtx vbl_lock; 1040 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 1041 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 1042 /* for wraparound handling */ 1043 int *vblank_enabled; /* so we don't call enable more than 1044 once per disable */ 1045 int *vblank_inmodeset; /* Display driver is setting mode */ 1046 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 1047 struct callout vblank_disable_callout; 1048 1049 u32 max_vblank_count; /**< size of vblank counter register */ 1050 1051 /** 1052 * List of events 1053 */ 1054 struct list_head vblank_event_list; 1055 struct mtx event_lock; 1056 1057 /*@} */ 1058 1059 struct drm_agp_head *agp; /**< AGP data */ 1060 1061 device_t dev; /* Device instance from newbus */ 1062 uint16_t pci_device; /* PCI device id */ 1063 uint16_t pci_vendor; /* PCI vendor id */ 1064 uint16_t pci_subdevice; /* PCI subsystem device id */ 1065 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 1066 1067 struct drm_sg_mem *sg; /**< Scatter gather memory */ 1068 unsigned int num_crtcs; /**< Number of CRTCs on this device */ 1069 void *dev_private; /**< device private data */ 1070 void *mm_private; 1071 struct drm_sigdata sigdata; /**< For block_all_signals */ 1072 sigset_t sigmask; 1073 1074 struct drm_driver *driver; 1075 struct drm_local_map *agp_buffer_map; 1076 unsigned int agp_buffer_token; 1077 struct drm_minor *control; /**< Control node for card */ 1078 struct drm_minor *primary; /**< render type primary screen head */ 1079 1080 struct drm_mode_config mode_config; /**< Current mode config */ 1081 1082 /** \name GEM information */ 1083 /*@{ */ 1084 struct sx object_name_lock; 1085 struct drm_gem_names object_names; 1086 /*@} */ 1087 int switch_power_state; 1088 1089 atomic_t unplugged; /* device has been unplugged or gone away */ 1090 1091 /* Locks */ 1092 struct mtx dma_lock; /* protects dev->dma */ 1093 struct mtx irq_lock; /* protects irq condition checks */ 1094 1095 /* Context support */ 1096 int irq; /* Interrupt used by board */ 1097 int msi_enabled; /* MSI enabled */ 1098 int irqrid; /* Interrupt used by board */ 1099 struct resource *irqr; /* Resource for interrupt used by board */ 1100 void *irqh; /* Handle from bus_setup_intr */ 1101 1102 /* Storage of resource pointers for drm_get_resource_* */ 1103 #define DRM_MAX_PCI_RESOURCE 6 1104 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 1105 int pcirid[DRM_MAX_PCI_RESOURCE]; 1106 struct mtx pcir_lock; 1107 1108 int pci_domain; 1109 int pci_bus; 1110 int pci_slot; 1111 int pci_func; 1112 1113 /* Sysctl support */ 1114 struct drm_sysctl_info *sysctl; 1115 int sysctl_node_idx; 1116 1117 void *drm_ttm_bdev; 1118 1119 void *sysctl_private; 1120 char busid_str[128]; 1121 int modesetting; 1122 1123 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 1124 }; 1125 1126 #define DRM_SWITCH_POWER_ON 0 1127 #define DRM_SWITCH_POWER_OFF 1 1128 #define DRM_SWITCH_POWER_CHANGING 2 1129 1130 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1131 int feature) 1132 { 1133 return ((dev->driver->driver_features & feature) ? 1 : 0); 1134 } 1135 1136 static inline int drm_dev_to_irq(struct drm_device *dev) 1137 { 1138 return dev->driver->bus->get_irq(dev); 1139 } 1140 1141 1142 #if __OS_HAS_AGP 1143 static inline int drm_core_has_AGP(struct drm_device *dev) 1144 { 1145 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1146 } 1147 #else 1148 #define drm_core_has_AGP(dev) (0) 1149 #endif 1150 1151 #if __OS_HAS_MTRR 1152 static inline int drm_core_has_MTRR(struct drm_device *dev) 1153 { 1154 return drm_core_check_feature(dev, DRIVER_USE_MTRR); 1155 } 1156 1157 #define DRM_MTRR_WC MDF_WRITECOMBINE 1158 1159 int drm_mtrr_add(unsigned long offset, unsigned long size, unsigned int flags); 1160 int drm_mtrr_del(int handle, unsigned long offset, unsigned long size, unsigned int flags); 1161 1162 #else 1163 #define drm_core_has_MTRR(dev) (0) 1164 1165 #define DRM_MTRR_WC 0 1166 1167 static inline int drm_mtrr_add(unsigned long offset, unsigned long size, 1168 unsigned int flags) 1169 { 1170 return 0; 1171 } 1172 1173 static inline int drm_mtrr_del(int handle, unsigned long offset, 1174 unsigned long size, unsigned int flags) 1175 { 1176 return 0; 1177 } 1178 #endif 1179 1180 /******************************************************************/ 1181 /** \name Internal function definitions */ 1182 /*@{*/ 1183 1184 /* Driver support (drm_drv.h) */ 1185 d_ioctl_t drm_ioctl; 1186 extern int drm_lastclose(struct drm_device *dev); 1187 1188 /* Device support (drm_fops.h) */ 1189 extern struct sx drm_global_mutex; 1190 d_open_t drm_open; 1191 d_read_t drm_read; 1192 extern void drm_release(void *data); 1193 1194 /* Mapping support (drm_vm.h) */ 1195 d_mmap_t drm_mmap; 1196 int drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, 1197 vm_size_t size, struct vm_object **obj_res, int nprot); 1198 d_poll_t drm_poll; 1199 1200 /* Memory management support (drm_memory.h) */ 1201 extern void drm_free_agp(DRM_AGP_MEM * handle, int pages); 1202 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start); 1203 #ifdef FREEBSD_NOTYET 1204 extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev, 1205 struct page **pages, 1206 unsigned long num_pages, 1207 uint32_t gtt_offset, 1208 uint32_t type); 1209 #endif /* FREEBSD_NOTYET */ 1210 extern int drm_unbind_agp(DRM_AGP_MEM * handle); 1211 1212 /* Misc. IOCTL support (drm_ioctl.h) */ 1213 extern int drm_irq_by_busid(struct drm_device *dev, void *data, 1214 struct drm_file *file_priv); 1215 extern int drm_getunique(struct drm_device *dev, void *data, 1216 struct drm_file *file_priv); 1217 extern int drm_setunique(struct drm_device *dev, void *data, 1218 struct drm_file *file_priv); 1219 extern int drm_getmap(struct drm_device *dev, void *data, 1220 struct drm_file *file_priv); 1221 extern int drm_getclient(struct drm_device *dev, void *data, 1222 struct drm_file *file_priv); 1223 extern int drm_getstats(struct drm_device *dev, void *data, 1224 struct drm_file *file_priv); 1225 extern int drm_getcap(struct drm_device *dev, void *data, 1226 struct drm_file *file_priv); 1227 extern int drm_setversion(struct drm_device *dev, void *data, 1228 struct drm_file *file_priv); 1229 extern int drm_noop(struct drm_device *dev, void *data, 1230 struct drm_file *file_priv); 1231 1232 /* Context IOCTL support (drm_context.h) */ 1233 extern int drm_resctx(struct drm_device *dev, void *data, 1234 struct drm_file *file_priv); 1235 extern int drm_addctx(struct drm_device *dev, void *data, 1236 struct drm_file *file_priv); 1237 extern int drm_modctx(struct drm_device *dev, void *data, 1238 struct drm_file *file_priv); 1239 extern int drm_getctx(struct drm_device *dev, void *data, 1240 struct drm_file *file_priv); 1241 extern int drm_switchctx(struct drm_device *dev, void *data, 1242 struct drm_file *file_priv); 1243 extern int drm_newctx(struct drm_device *dev, void *data, 1244 struct drm_file *file_priv); 1245 extern int drm_rmctx(struct drm_device *dev, void *data, 1246 struct drm_file *file_priv); 1247 1248 extern int drm_ctxbitmap_init(struct drm_device *dev); 1249 extern void drm_ctxbitmap_cleanup(struct drm_device *dev); 1250 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1251 1252 extern int drm_setsareactx(struct drm_device *dev, void *data, 1253 struct drm_file *file_priv); 1254 extern int drm_getsareactx(struct drm_device *dev, void *data, 1255 struct drm_file *file_priv); 1256 1257 /* Authentication IOCTL support (drm_auth.h) */ 1258 extern int drm_getmagic(struct drm_device *dev, void *data, 1259 struct drm_file *file_priv); 1260 extern int drm_authmagic(struct drm_device *dev, void *data, 1261 struct drm_file *file_priv); 1262 extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic); 1263 1264 /* Cache management (drm_cache.c) */ 1265 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1266 void drm_clflush_virt_range(char *addr, unsigned long length); 1267 1268 /* Locking IOCTL support (drm_lock.h) */ 1269 extern int drm_lock(struct drm_device *dev, void *data, 1270 struct drm_file *file_priv); 1271 extern int drm_unlock(struct drm_device *dev, void *data, 1272 struct drm_file *file_priv); 1273 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context); 1274 extern void drm_idlelock_take(struct drm_lock_data *lock_data); 1275 extern void drm_idlelock_release(struct drm_lock_data *lock_data); 1276 1277 /* 1278 * These are exported to drivers so that they can implement fencing using 1279 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1280 */ 1281 1282 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv); 1283 1284 /* Buffer management support (drm_bufs.h) */ 1285 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request); 1286 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request); 1287 extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1288 unsigned int size, enum drm_map_type type, 1289 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1290 extern int drm_addmap_ioctl(struct drm_device *dev, void *data, 1291 struct drm_file *file_priv); 1292 extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map); 1293 extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map); 1294 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1295 struct drm_file *file_priv); 1296 extern int drm_addbufs(struct drm_device *dev, void *data, 1297 struct drm_file *file_priv); 1298 extern int drm_infobufs(struct drm_device *dev, void *data, 1299 struct drm_file *file_priv); 1300 extern int drm_markbufs(struct drm_device *dev, void *data, 1301 struct drm_file *file_priv); 1302 extern int drm_freebufs(struct drm_device *dev, void *data, 1303 struct drm_file *file_priv); 1304 extern int drm_mapbufs(struct drm_device *dev, void *data, 1305 struct drm_file *file_priv); 1306 extern int drm_order(unsigned long size); 1307 1308 /* DMA support (drm_dma.h) */ 1309 extern int drm_dma_setup(struct drm_device *dev); 1310 extern void drm_dma_takedown(struct drm_device *dev); 1311 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf); 1312 extern void drm_core_reclaim_buffers(struct drm_device *dev, 1313 struct drm_file *filp); 1314 1315 /* IRQ support (drm_irq.h) */ 1316 extern int drm_control(struct drm_device *dev, void *data, 1317 struct drm_file *file_priv); 1318 extern int drm_irq_install(struct drm_device *dev); 1319 extern int drm_irq_uninstall(struct drm_device *dev); 1320 1321 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1322 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1323 struct drm_file *filp); 1324 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1325 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1326 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1327 struct timeval *vblanktime); 1328 extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1329 struct drm_pending_vblank_event *e); 1330 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1331 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1332 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1333 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1334 extern void drm_vblank_cleanup(struct drm_device *dev); 1335 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1336 struct timeval *tvblank, unsigned flags); 1337 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1338 int crtc, int *max_error, 1339 struct timeval *vblank_time, 1340 unsigned flags, 1341 struct drm_crtc *refcrtc); 1342 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1343 1344 extern bool 1345 drm_mode_parse_command_line_for_connector(const char *mode_option, 1346 struct drm_connector *connector, 1347 struct drm_cmdline_mode *mode); 1348 1349 extern struct drm_display_mode * 1350 drm_mode_create_from_cmdline_mode(struct drm_device *dev, 1351 struct drm_cmdline_mode *cmd); 1352 1353 /* Modesetting support */ 1354 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1355 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1356 extern int drm_modeset_ctl(struct drm_device *dev, void *data, 1357 struct drm_file *file_priv); 1358 1359 /* AGP/GART support (drm_agpsupport.h) */ 1360 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev); 1361 extern int drm_agp_acquire(struct drm_device *dev); 1362 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1363 struct drm_file *file_priv); 1364 extern int drm_agp_release(struct drm_device *dev); 1365 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1366 struct drm_file *file_priv); 1367 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1368 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1369 struct drm_file *file_priv); 1370 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info); 1371 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1372 struct drm_file *file_priv); 1373 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1374 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1375 struct drm_file *file_priv); 1376 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1377 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1378 struct drm_file *file_priv); 1379 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1380 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1381 struct drm_file *file_priv); 1382 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1383 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1384 struct drm_file *file_priv); 1385 1386 /* Stub support (drm_stub.h) */ 1387 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1388 struct drm_file *file_priv); 1389 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1390 struct drm_file *file_priv); 1391 struct drm_master *drm_master_create(struct drm_minor *minor); 1392 extern struct drm_master *drm_master_get(struct drm_master *master); 1393 extern void drm_master_put(struct drm_master **master); 1394 1395 extern void drm_put_dev(struct drm_device *dev); 1396 extern int drm_put_minor(struct drm_minor **minor); 1397 extern void drm_unplug_dev(struct drm_device *dev); 1398 extern unsigned int drm_debug; 1399 extern unsigned int drm_notyet; 1400 1401 extern unsigned int drm_vblank_offdelay; 1402 extern unsigned int drm_timestamp_precision; 1403 extern unsigned int drm_timestamp_monotonic; 1404 1405 extern struct drm_local_map *drm_getsarea(struct drm_device *dev); 1406 1407 1408 #ifdef FREEBSD_NOTYET 1409 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1410 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1411 int *prime_fd); 1412 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1413 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1414 1415 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1416 struct drm_file *file_priv); 1417 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1418 struct drm_file *file_priv); 1419 1420 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1421 dma_addr_t *addrs, int max_pages); 1422 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1423 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1424 1425 1426 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1427 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1428 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1429 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1430 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1431 1432 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1433 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1434 struct drm_gem_object **obj); 1435 #endif /* FREEBSD_NOTYET */ 1436 1437 /* Scatter Gather Support (drm_scatter.h) */ 1438 extern void drm_sg_cleanup(struct drm_sg_mem * entry); 1439 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1440 struct drm_file *file_priv); 1441 extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1442 extern int drm_sg_free(struct drm_device *dev, void *data, 1443 struct drm_file *file_priv); 1444 1445 /* ATI PCIGART support (ati_pcigart.h) */ 1446 extern int drm_ati_pcigart_init(struct drm_device *dev, 1447 struct drm_ati_pcigart_info * gart_info); 1448 extern int drm_ati_pcigart_cleanup(struct drm_device *dev, 1449 struct drm_ati_pcigart_info * gart_info); 1450 1451 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1452 size_t align, dma_addr_t maxaddr); 1453 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); 1454 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); 1455 1456 /* Graphics Execution Manager library functions (drm_gem.c) */ 1457 int drm_gem_init(struct drm_device *dev); 1458 void drm_gem_destroy(struct drm_device *dev); 1459 void drm_gem_object_release(struct drm_gem_object *obj); 1460 void drm_gem_object_free(struct drm_gem_object *obj); 1461 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1462 size_t size); 1463 int drm_gem_object_init(struct drm_device *dev, 1464 struct drm_gem_object *obj, size_t size); 1465 int drm_gem_private_object_init(struct drm_device *dev, 1466 struct drm_gem_object *obj, size_t size); 1467 void drm_gem_object_handle_free(struct drm_gem_object *obj); 1468 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1469 vm_size_t size, struct vm_object **obj_res, int nprot); 1470 void drm_gem_pager_dtr(void *obj); 1471 1472 #include <dev/drm2/drm_global.h> 1473 1474 static inline void 1475 drm_gem_object_reference(struct drm_gem_object *obj) 1476 { 1477 1478 KASSERT(obj->refcount > 0, ("Dangling obj %p", obj)); 1479 refcount_acquire(&obj->refcount); 1480 } 1481 1482 static inline void 1483 drm_gem_object_unreference(struct drm_gem_object *obj) 1484 { 1485 1486 if (obj == NULL) 1487 return; 1488 if (refcount_release(&obj->refcount)) 1489 drm_gem_object_free(obj); 1490 } 1491 1492 static inline void 1493 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1494 { 1495 if (obj != NULL) { 1496 struct drm_device *dev = obj->dev; 1497 DRM_LOCK(dev); 1498 drm_gem_object_unreference(obj); 1499 DRM_UNLOCK(dev); 1500 } 1501 } 1502 1503 int drm_gem_handle_create(struct drm_file *file_priv, 1504 struct drm_gem_object *obj, 1505 u32 *handlep); 1506 int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1507 1508 static inline void 1509 drm_gem_object_handle_reference(struct drm_gem_object *obj) 1510 { 1511 drm_gem_object_reference(obj); 1512 atomic_inc(&obj->handle_count); 1513 } 1514 1515 static inline void 1516 drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1517 { 1518 if (obj == NULL) 1519 return; 1520 1521 if (atomic_read(&obj->handle_count) == 0) 1522 return; 1523 /* 1524 * Must bump handle count first as this may be the last 1525 * ref, in which case the object would disappear before we 1526 * checked for a name 1527 */ 1528 if (atomic_dec_and_test(&obj->handle_count)) 1529 drm_gem_object_handle_free(obj); 1530 drm_gem_object_unreference(obj); 1531 } 1532 1533 static inline void 1534 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) 1535 { 1536 if (obj == NULL) 1537 return; 1538 1539 if (atomic_read(&obj->handle_count) == 0) 1540 return; 1541 1542 /* 1543 * Must bump handle count first as this may be the last 1544 * ref, in which case the object would disappear before we 1545 * checked for a name 1546 */ 1547 1548 if (atomic_dec_and_test(&obj->handle_count)) 1549 drm_gem_object_handle_free(obj); 1550 drm_gem_object_unreference_unlocked(obj); 1551 } 1552 1553 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1554 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1555 1556 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1557 struct drm_file *filp, 1558 u32 handle); 1559 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1560 struct drm_file *file_priv); 1561 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1562 struct drm_file *file_priv); 1563 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1564 struct drm_file *file_priv); 1565 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); 1566 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); 1567 1568 extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev); 1569 extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev); 1570 extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev); 1571 1572 static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, 1573 unsigned int token) 1574 { 1575 struct drm_map_list *_entry; 1576 list_for_each_entry(_entry, &dev->maplist, head) 1577 if (_entry->user_token == token) 1578 return _entry->map; 1579 return NULL; 1580 } 1581 1582 static __inline__ void drm_core_dropmap(struct drm_local_map *map) 1583 { 1584 } 1585 1586 extern int drm_fill_in_dev(struct drm_device *dev, 1587 struct drm_driver *driver); 1588 extern void drm_cancel_fill_in_dev(struct drm_device *dev); 1589 int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type); 1590 /*@}*/ 1591 1592 /* PCI section */ 1593 int drm_pci_device_is_agp(struct drm_device *dev); 1594 int drm_pci_device_is_pcie(struct drm_device *dev); 1595 1596 extern int drm_get_pci_dev(device_t kdev, struct drm_device *dev, 1597 struct drm_driver *driver); 1598 1599 #define DRM_PCIE_SPEED_25 1 1600 #define DRM_PCIE_SPEED_50 2 1601 #define DRM_PCIE_SPEED_80 4 1602 1603 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1604 1605 #define drm_can_sleep() (DRM_HZ & 1) 1606 1607 /* FreeBSD specific -- should be moved to drm_os_freebsd.h */ 1608 1609 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 1610 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 1611 #define DRM_GEM_MAX_IDX 0x3fffff 1612 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 1613 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 1614 #define DRM_GEM_MAPPING_MAPOFF(o) \ 1615 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 1616 1617 SYSCTL_DECL(_hw_drm); 1618 1619 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 1620 #define DRM_DEV_UID UID_ROOT 1621 #define DRM_DEV_GID GID_VIDEO 1622 1623 #define DRM_WAKEUP(w) wakeup((void *)w) 1624 #define DRM_WAKEUP_INT(w) wakeup(w) 1625 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 1626 1627 #define DRM_CURPROC curthread 1628 #define DRM_STRUCTPROC struct thread 1629 #define DRM_SPINTYPE struct mtx 1630 #define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF) 1631 #define DRM_SPINUNINIT(l) mtx_destroy(l) 1632 #define DRM_SPINLOCK(l) mtx_lock(l) 1633 #define DRM_SPINUNLOCK(u) mtx_unlock(u) 1634 #define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \ 1635 mtx_lock(l); \ 1636 (void)irqflags; \ 1637 } while (0) 1638 #define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u) 1639 #define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 1640 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 1641 (sx_sleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout))) 1642 #if defined(INVARIANTS) 1643 #define DRM_LOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_XLOCKED) 1644 #define DRM_UNLOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_UNLOCKED) 1645 #else 1646 #define DRM_LOCK_ASSERT(d) 1647 #define DRM_UNLOCK_ASSERT(d) 1648 #endif 1649 1650 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 1651 1652 enum { 1653 DRM_IS_NOT_AGP, 1654 DRM_IS_AGP, 1655 DRM_MIGHT_BE_AGP 1656 }; 1657 1658 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 1659 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 1660 1661 #define DRM_COPY_TO_USER(user, kern, size) \ 1662 copyout(kern, user, size) 1663 #define DRM_COPY_FROM_USER(kern, user, size) \ 1664 copyin(user, kern, size) 1665 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 1666 copyin(arg2, arg1, arg3) 1667 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 1668 copyout(arg2, arg1, arg3) 1669 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 1670 ((val) = fuword32(uaddr), 0) 1671 1672 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 1673 (_map) = (_dev)->context_sareas[_ctx]; \ 1674 } while(0) 1675 1676 /* Returns -errno to shared code */ 1677 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 1678 for ( ret = 0 ; !ret && !(condition) ; ) { \ 1679 DRM_UNLOCK(dev); \ 1680 mtx_lock(&dev->irq_lock); \ 1681 if (!(condition)) \ 1682 ret = -mtx_sleep(&(queue), &dev->irq_lock, \ 1683 PCATCH, "drmwtq", (timeout)); \ 1684 if (ret == -ERESTART) \ 1685 ret = -ERESTARTSYS; \ 1686 mtx_unlock(&dev->irq_lock); \ 1687 DRM_LOCK(dev); \ 1688 } 1689 1690 #define dev_err(dev, fmt, ...) \ 1691 device_printf((dev), "error: " fmt, ## __VA_ARGS__) 1692 #define dev_warn(dev, fmt, ...) \ 1693 device_printf((dev), "warning: " fmt, ## __VA_ARGS__) 1694 #define dev_info(dev, fmt, ...) \ 1695 device_printf((dev), "info: " fmt, ## __VA_ARGS__) 1696 #define dev_dbg(dev, fmt, ...) do { \ 1697 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 1698 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 1699 } \ 1700 } while (0) 1701 1702 struct drm_msi_blacklist_entry 1703 { 1704 int vendor; 1705 int device; 1706 }; 1707 1708 struct drm_vblank_info { 1709 wait_queue_head_t queue; /* vblank wait queue */ 1710 atomic_t count; /* number of VBLANK interrupts */ 1711 /* (driver must alloc the right number of counters) */ 1712 atomic_t refcount; /* number of users of vblank interrupts */ 1713 u32 last; /* protected by dev->vbl_lock, used */ 1714 /* for wraparound handling */ 1715 int enabled; /* so we don't call enable more than */ 1716 /* once per disable */ 1717 int inmodeset; /* Display driver is setting mode */ 1718 }; 1719 1720 #ifndef DMA_BIT_MASK 1721 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 1722 #endif 1723 1724 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 1725 1726 enum dmi_field { 1727 DMI_NONE, 1728 DMI_BIOS_VENDOR, 1729 DMI_BIOS_VERSION, 1730 DMI_BIOS_DATE, 1731 DMI_SYS_VENDOR, 1732 DMI_PRODUCT_NAME, 1733 DMI_PRODUCT_VERSION, 1734 DMI_PRODUCT_SERIAL, 1735 DMI_PRODUCT_UUID, 1736 DMI_BOARD_VENDOR, 1737 DMI_BOARD_NAME, 1738 DMI_BOARD_VERSION, 1739 DMI_BOARD_SERIAL, 1740 DMI_BOARD_ASSET_TAG, 1741 DMI_CHASSIS_VENDOR, 1742 DMI_CHASSIS_TYPE, 1743 DMI_CHASSIS_VERSION, 1744 DMI_CHASSIS_SERIAL, 1745 DMI_CHASSIS_ASSET_TAG, 1746 DMI_STRING_MAX, 1747 }; 1748 1749 struct dmi_strmatch { 1750 unsigned char slot; 1751 char substr[79]; 1752 }; 1753 1754 struct dmi_system_id { 1755 int (*callback)(const struct dmi_system_id *); 1756 const char *ident; 1757 struct dmi_strmatch matches[4]; 1758 }; 1759 #define DMI_MATCH(a, b) {(a), (b)} 1760 bool dmi_check_system(const struct dmi_system_id *); 1761 1762 /* Device setup support (drm_drv.c) */ 1763 int drm_probe_helper(device_t kdev, drm_pci_id_list_t *idlist); 1764 int drm_attach_helper(device_t kdev, drm_pci_id_list_t *idlist, 1765 struct drm_driver *driver); 1766 int drm_generic_detach(device_t kdev); 1767 1768 void drm_event_wakeup(struct drm_pending_event *e); 1769 1770 int drm_add_busid_modesetting(struct drm_device *dev, 1771 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1772 1773 /* Buffer management support (drm_bufs.c) */ 1774 unsigned long drm_get_resource_start(struct drm_device *dev, 1775 unsigned int resource); 1776 unsigned long drm_get_resource_len(struct drm_device *dev, 1777 unsigned int resource); 1778 1779 /* IRQ support (drm_irq.c) */ 1780 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 1781 void drm_driver_irq_preinstall(struct drm_device *dev); 1782 void drm_driver_irq_postinstall(struct drm_device *dev); 1783 void drm_driver_irq_uninstall(struct drm_device *dev); 1784 1785 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1786 void *drm_agp_allocate_memory(size_t pages, u32 type); 1787 int drm_agp_free_memory(void *handle); 1788 int drm_agp_bind_memory(void *handle, off_t start); 1789 int drm_agp_unbind_memory(void *handle); 1790 1791 /* sysctl support (drm_sysctl.h) */ 1792 extern int drm_sysctl_init(struct drm_device *dev); 1793 extern int drm_sysctl_cleanup(struct drm_device *dev); 1794 1795 int drm_version(struct drm_device *dev, void *data, 1796 struct drm_file *file_priv); 1797 1798 /* consistent PCI memory functions (drm_pci.c) */ 1799 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); 1800 int drm_pci_set_unique(struct drm_device *dev, struct drm_master *master, 1801 struct drm_unique *u); 1802 int drm_pci_agp_init(struct drm_device *dev); 1803 int drm_pci_enable_msi(struct drm_device *dev); 1804 void drm_pci_disable_msi(struct drm_device *dev); 1805 1806 struct ttm_bo_device; 1807 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1808 vm_size_t size, struct vm_object **obj_res, int nprot); 1809 struct ttm_buffer_object; 1810 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1811 1812 #endif /* __KERNEL__ */ 1813 #endif 1814