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 #ifndef _DRM_P_H_ 36 #define _DRM_P_H_ 37 38 #if defined(_KERNEL) || defined(__KERNEL__) 39 40 #include <sys/param.h> 41 #include <sys/queue.h> 42 #include <sys/malloc.h> 43 #include <sys/kernel.h> 44 #include <sys/ktr.h> 45 #include <sys/module.h> 46 #include <sys/systm.h> 47 #include <sys/device.h> 48 #include <sys/sglist.h> 49 #include <sys/stat.h> 50 #include <sys/priv.h> 51 #include <sys/proc.h> 52 #include <sys/lock.h> 53 #include <sys/spinlock.h> 54 #include <sys/spinlock2.h> 55 #include <sys/fcntl.h> 56 #include <sys/uio.h> 57 #include <sys/filio.h> 58 #include <sys/sysctl.h> 59 #include <sys/bus.h> 60 #include <sys/queue.h> 61 #include <sys/signalvar.h> 62 #include <sys/poll.h> 63 #include <linux/highmem.h> 64 #include <sys/sbuf.h> 65 #include <sys/taskqueue.h> 66 #include <sys/tree.h> 67 #include <vm/vm.h> 68 #include <vm/pmap.h> 69 #include <vm/vm_extern.h> 70 #include <vm/vm_kern.h> 71 #include <vm/vm_map.h> 72 #include <vm/vm_object.h> 73 #include <vm/vm_page2.h> 74 #include <vm/vm_pager.h> 75 #include <vm/vm_param.h> 76 #include <machine/param.h> 77 #include <machine/pmap.h> 78 #ifdef __x86_64__ 79 #include <machine/specialreg.h> 80 #endif 81 #include <machine/sysarch.h> 82 #include <sys/endian.h> 83 #include <sys/mman.h> 84 #include <sys/rman.h> 85 #include <sys/memrange.h> 86 #include <sys/agpio.h> 87 #include <sys/mutex.h> 88 89 MALLOC_DECLARE(M_DRM); 90 91 #include <uapi_drm/drm.h> 92 #include <uapi_drm/drm_sarea.h> 93 94 #include <linux/atomic.h> 95 #include <linux/bug.h> 96 #include <linux/dma-mapping.h> 97 #include <linux/capability.h> 98 #include <linux/err.h> 99 #include <linux/idr.h> 100 #include <linux/pci.h> 101 #include <linux/jiffies.h> 102 #include <linux/kernel.h> 103 #include <linux/fs.h> 104 #include <linux/kref.h> 105 #include <linux/list.h> 106 #include <linux/mm.h> 107 #include <linux/moduleparam.h> 108 #include <linux/mutex.h> 109 #include <linux/slab.h> 110 #include <linux/scatterlist.h> 111 #include <linux/timer.h> 112 #include <asm/io.h> 113 #include <linux/seq_file.h> 114 #include <linux/types.h> 115 #include <linux/vmalloc.h> 116 #include <linux/wait.h> 117 #include <linux/workqueue.h> 118 119 #include <asm/uaccess.h> 120 121 #include <drm/drm_global.h> 122 123 #include <drm/drm_vma_manager.h> 124 125 struct drm_file; 126 struct drm_device; 127 struct drm_agp_head; 128 struct drm_gem_object; 129 130 struct device_node; 131 struct videomode; 132 133 #include <drm/drm_os_linux.h> 134 #include <drm/drm_hashtab.h> 135 #include <drm/drm_mm.h> 136 137 /* 138 * 4 debug categories are defined: 139 * 140 * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... 141 * This is the category used by the DRM_DEBUG() macro. 142 * 143 * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... 144 * This is the category used by the DRM_DEBUG_DRIVER() macro. 145 * 146 * KMS: used in the modesetting code. 147 * This is the category used by the DRM_DEBUG_KMS() macro. 148 * 149 * PRIME: used in the prime code. 150 * This is the category used by the DRM_DEBUG_PRIME() macro. 151 * 152 * Enabling verbose debug messages is done through the drm.debug parameter, 153 * each category being enabled by a bit. 154 * 155 * drm.debug=0x1 will enable CORE messages 156 * drm.debug=0x2 will enable DRIVER messages 157 * drm.debug=0x3 will enable CORE and DRIVER messages 158 * ... 159 * drm.debug=0xf will enable all messages 160 * 161 * An interesting feature is that it's possible to enable verbose logging at 162 * run-time by echoing the debug value in its sysfs node: 163 * # echo 0xf > /sys/module/drm/parameters/debug 164 */ 165 #define DRM_UT_CORE 0x01 166 #define DRM_UT_DRIVER 0x02 167 #define DRM_UT_KMS 0x04 168 #define DRM_UT_PRIME 0x08 169 170 void drm_ut_debug_printk(const char *function_name, 171 const char *format, ...); 172 173 void drm_err(const char *func, const char *format, ...); 174 175 /***********************************************************************/ 176 /** \name DRM template customization defaults */ 177 /*@{*/ 178 179 /* driver capabilities and requirements mask */ 180 #define DRIVER_USE_AGP 0x1 181 #define DRIVER_REQUIRE_AGP 0x2 182 #define DRIVER_PCI_DMA 0x8 183 #define DRIVER_SG 0x10 184 #define DRIVER_HAVE_DMA 0x20 185 #define DRIVER_HAVE_IRQ 0x40 186 #define DRIVER_IRQ_SHARED 0x80 187 #define DRIVER_DMA_QUEUE 0x200 188 #define DRIVER_GEM 0x1000 189 #define DRIVER_MODESET 0x2000 190 #define DRIVER_PRIME 0x4000 191 #define DRIVER_RENDER 0x8000 192 193 /***********************************************************************/ 194 /** \name Begin the DRM... */ 195 /*@{*/ 196 197 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ 198 199 /*@}*/ 200 201 /***********************************************************************/ 202 /** \name Macros to make printk easier */ 203 /*@{*/ 204 205 /** 206 * Error output. 207 * 208 * \param fmt printf() like format string. 209 * \param arg arguments 210 */ 211 #define DRM_ERROR(fmt, ...) \ 212 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 213 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 214 215 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 216 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 217 #define DRM_GEM_MAX_IDX 0x3fffff 218 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 219 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 220 #define DRM_GEM_MAPPING_MAPOFF(o) \ 221 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 222 223 SYSCTL_DECL(_hw_drm); 224 225 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 226 227 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 228 229 #define __OS_HAS_AGP 1 230 231 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 232 #define DRM_DEV_UID 0 233 #define DRM_DEV_GID 0 234 235 #define DRM_CURPROC curthread 236 #define DRM_STRUCTPROC struct thread 237 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1) 238 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE) 239 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE) 240 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 241 (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout))) 242 #if defined(INVARIANTS) 243 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0); 244 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0); 245 #else 246 #define DRM_LOCK_ASSERT(d) 247 #define DRM_UNLOCK_ASSERT(d) 248 #endif 249 250 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 251 252 typedef void irqreturn_t; 253 #define IRQ_HANDLED /* nothing */ 254 #define IRQ_NONE /* nothing */ 255 256 enum { 257 DRM_IS_NOT_AGP, 258 DRM_IS_AGP, 259 DRM_MIGHT_BE_AGP 260 }; 261 #define DRM_AGP_MEM struct agp_memory_info 262 263 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 264 265 #define DRM_AGP_FIND_DEVICE() agp_find_device() 266 #define DRM_MTRR_WC MDF_WRITECOMBINE 267 268 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 269 do { \ 270 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 271 dev->lock.file_priv != file_priv) { \ 272 DRM_ERROR("%s called without lock held\n", \ 273 __FUNCTION__); \ 274 return EINVAL; \ 275 } \ 276 } while (0) 277 278 /* Returns -errno to shared code */ 279 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 280 for ( ret = 0 ; !ret && !(condition) ; ) { \ 281 DRM_UNLOCK(dev); \ 282 lwkt_serialize_enter(&dev->irq_lock); \ 283 if (!(condition)) { \ 284 tsleep_interlock(&(queue), PCATCH); \ 285 lwkt_serialize_exit(&dev->irq_lock); \ 286 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 287 "drmwtq", (timeout)); \ 288 } else { \ 289 lwkt_serialize_exit(&dev->irq_lock); \ 290 } \ 291 DRM_LOCK(dev); \ 292 } 293 294 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 295 vm_memattr_t memattr); 296 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 297 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 298 299 /***********************************************************************/ 300 /** \name Macros to make printk easier */ 301 /*@{*/ 302 303 304 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 305 306 #define DRM_INFO_ONCE(fmt, ...) \ 307 printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) 308 309 #define DRM_DEBUGBITS_DEBUG 0x1 310 #define DRM_DEBUGBITS_KMS 0x2 311 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 312 #define DRM_DEBUGBITS_VERBOSE 0x8 313 314 #define DRM_DEBUG(fmt, ...) do { \ 315 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 316 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 317 __func__ , ##__VA_ARGS__); \ 318 } while (0) 319 320 #define DRM_DEBUG_VERBOSE(fmt, ...) do { \ 321 if ((drm_debug & DRM_DEBUGBITS_VERBOSE) != 0) \ 322 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 323 __func__ , ##__VA_ARGS__); \ 324 } while (0) 325 326 #define DRM_DEBUG_KMS(fmt, ...) do { \ 327 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 328 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 329 __func__ , ##__VA_ARGS__); \ 330 } while (0) 331 332 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 333 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 334 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 335 __func__ , ##__VA_ARGS__); \ 336 } while (0) 337 338 #define DRM_LOG_KMS(fmt, ...) do { \ 339 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \ 340 __func__ , ##__VA_ARGS__); \ 341 } while (0) 342 343 #define dev_dbg(dev, fmt, ...) do { \ 344 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 345 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 346 } \ 347 } while (0) 348 349 typedef struct drm_pci_id_list 350 { 351 int vendor; 352 int device; 353 long driver_private; 354 char *name; 355 } drm_pci_id_list_t; 356 357 struct drm_msi_blacklist_entry 358 { 359 int vendor; 360 int device; 361 }; 362 363 /** 364 * Ioctl function type. 365 * 366 * \param inode device inode. 367 * \param file_priv DRM file private pointer. 368 * \param cmd command. 369 * \param arg argument. 370 */ 371 typedef int drm_ioctl_t(struct drm_device *dev, void *data, 372 struct drm_file *file_priv); 373 374 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, 375 unsigned long arg); 376 377 #define DRM_IOCTL_NR(n) ((n) & 0xff) 378 379 #define DRM_AUTH 0x1 380 #define DRM_MASTER 0x2 381 #define DRM_ROOT_ONLY 0x4 382 #define DRM_CONTROL_ALLOW 0x8 383 #define DRM_UNLOCKED 0x10 384 #define DRM_RENDER_ALLOW 0x20 385 386 struct drm_ioctl_desc { 387 unsigned int cmd; 388 int flags; 389 drm_ioctl_t *func; 390 unsigned int cmd_drv; 391 const char *name; 392 }; 393 394 /** 395 * Creates a driver or general drm_ioctl_desc array entry for the given 396 * ioctl, for use by drm_ioctl(). 397 */ 398 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 399 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 400 401 typedef struct drm_magic_entry { 402 struct list_head head; 403 struct drm_hash_item hash_item; 404 struct drm_file *priv; 405 struct drm_magic_entry *next; 406 } drm_magic_entry_t; 407 408 typedef struct drm_magic_head { 409 struct drm_magic_entry *head; 410 struct drm_magic_entry *tail; 411 } drm_magic_head_t; 412 413 typedef struct drm_buf { 414 int idx; /**< Index into master buflist */ 415 int total; /**< Buffer size */ 416 int order; /**< log-base-2(total) */ 417 int used; /**< Amount of buffer in use (for DMA) */ 418 unsigned long offset; /**< Byte offset (used internally) */ 419 void *address; /**< Address of buffer */ 420 unsigned long bus_address; /**< Bus address of buffer */ 421 struct drm_buf *next; /**< Kernel-only: used for free list */ 422 __volatile__ int waiting; /**< On kernel DMA queue */ 423 __volatile__ int pending; /**< On hardware DMA queue */ 424 struct drm_file *file_priv; /**< Private of holding file descr */ 425 int context; /**< Kernel queue for this buffer */ 426 int while_locked; /**< Dispatch this buffer while locked */ 427 enum { 428 DRM_LIST_NONE = 0, 429 DRM_LIST_FREE = 1, 430 DRM_LIST_WAIT = 2, 431 DRM_LIST_PEND = 3, 432 DRM_LIST_PRIO = 4, 433 DRM_LIST_RECLAIM = 5 434 } list; /**< Which list we're on */ 435 436 int dev_priv_size; /**< Size of buffer private storage */ 437 void *dev_private; /**< Per-buffer private storage */ 438 } drm_buf_t; 439 440 /** bufs is one longer than it has to be */ 441 struct drm_waitlist { 442 int count; /**< Number of possible buffers */ 443 struct drm_buf **bufs; /**< List of pointers to buffers */ 444 struct drm_buf **rp; /**< Read pointer */ 445 struct drm_buf **wp; /**< Write pointer */ 446 struct drm_buf **end; /**< End pointer */ 447 struct spinlock *read_lock; 448 struct spinlock *write_lock; 449 }; 450 451 typedef struct drm_dma_handle { 452 void *vaddr; 453 size_t size; 454 bus_addr_t busaddr; 455 bus_dma_tag_t tag; 456 bus_dmamap_t map; 457 } drm_dma_handle_t; 458 459 typedef struct drm_buf_entry { 460 int buf_size; 461 int buf_count; 462 drm_buf_t *buflist; 463 int seg_count; 464 int page_order; 465 struct drm_dma_handle **seglist; 466 467 int low_mark; /**< Low water mark */ 468 int high_mark; /**< High water mark */ 469 } drm_buf_entry_t; 470 471 /* Event queued up for userspace to read */ 472 struct drm_pending_event { 473 struct drm_event *event; 474 struct list_head link; 475 struct drm_file *file_priv; 476 pid_t pid; /* pid of requester, no guarantee it's valid by the time 477 we deliver the event, for tracing only */ 478 void (*destroy)(struct drm_pending_event *event); 479 }; 480 481 /* initial implementaton using a linked list - todo hashtab */ 482 struct drm_prime_file_private { 483 struct list_head head; 484 #ifdef DUMBBELL_WIP 485 struct mutex lock; 486 #endif /* DUMBBELL_WIP */ 487 }; 488 489 /** File private data */ 490 struct drm_file { 491 int authenticated; 492 struct drm_device *dev; 493 int master; 494 495 /* true when the client has asked us to expose stereo 3D mode flags */ 496 bool stereo_allowed; 497 /* 498 * true if client understands CRTC primary planes and cursor planes 499 * in the plane list 500 */ 501 unsigned universal_planes:1; 502 503 pid_t pid; 504 uid_t uid; 505 drm_magic_t magic; 506 unsigned long ioctl_count; 507 struct list_head lhead; 508 struct kqinfo dkq; 509 510 /** Mapping of mm object handles to object pointers. */ 511 struct idr object_idr; 512 /** Lock for synchronization of access to object_idr. */ 513 struct lock table_lock; 514 515 void *driver_priv; 516 517 int is_master; 518 struct drm_master *masterp; 519 520 /** 521 * fbs - List of framebuffers associated with this file. 522 * 523 * Protected by fbs_lock. Note that the fbs list holds a reference on 524 * the fb object to prevent it from untimely disappearing. 525 */ 526 struct list_head fbs; 527 struct lock fbs_lock; 528 529 wait_queue_head_t event_wait; 530 struct list_head event_list; 531 int event_space; 532 533 struct drm_prime_file_private prime; 534 }; 535 536 /** Wait queue */ 537 struct drm_queue { 538 atomic_t use_count; /**< Outstanding uses (+1) */ 539 atomic_t finalization; /**< Finalization in progress */ 540 atomic_t block_count; /**< Count of processes waiting */ 541 atomic_t block_read; /**< Queue blocked for reads */ 542 wait_queue_head_t read_queue; /**< Processes waiting on block_read */ 543 atomic_t block_write; /**< Queue blocked for writes */ 544 wait_queue_head_t write_queue; /**< Processes waiting on block_write */ 545 atomic_t total_queued; /**< Total queued statistic */ 546 atomic_t total_flushed; /**< Total flushes statistic */ 547 atomic_t total_locks; /**< Total locks statistics */ 548 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */ 549 struct drm_waitlist waitlist; /**< Pending buffers */ 550 wait_queue_head_t flush_queue; /**< Processes waiting until flush */ 551 }; 552 553 /** 554 * Lock data. 555 */ 556 struct drm_lock_data { 557 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 558 /** Private of lock holder's file (NULL=kernel) */ 559 struct drm_file *file_priv; 560 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 561 unsigned long lock_time; /**< Time of last lock in jiffies */ 562 }; 563 564 /* This structure, in the struct drm_device, is always initialized while the 565 * device 566 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 567 * when set marks that no further bufs may be allocated until device teardown 568 * occurs (when the last open of the device has closed). The high/low 569 * watermarks of bufs are only touched by the X Server, and thus not 570 * concurrently accessed, so no locking is needed. 571 */ 572 typedef struct drm_device_dma { 573 574 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 575 int buf_count; /**< total number of buffers */ 576 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 577 int seg_count; 578 int page_count; /**< number of pages */ 579 unsigned long *pagelist; /**< page list */ 580 unsigned long byte_count; 581 enum { 582 _DRM_DMA_USE_AGP = 0x01, 583 _DRM_DMA_USE_SG = 0x02, 584 _DRM_DMA_USE_FB = 0x04, 585 _DRM_DMA_USE_PCI_RO = 0x08 586 } flags; 587 588 } drm_device_dma_t; 589 590 typedef struct drm_sg_mem { 591 vm_offset_t vaddr; 592 vm_paddr_t *busaddr; 593 vm_pindex_t pages; 594 } drm_sg_mem_t; 595 596 /** 597 * Kernel side of a mapping 598 */ 599 struct drm_local_map { 600 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 601 unsigned long size; /**< Requested physical size (bytes) */ 602 enum drm_map_type type; /**< Type of memory to map */ 603 enum drm_map_flags flags; /**< Flags */ 604 void *handle; /**< User-space: "Handle" to pass to mmap() */ 605 /**< Kernel-space: kernel-virtual address */ 606 int mtrr; /**< MTRR slot used */ 607 }; 608 609 typedef struct drm_local_map drm_local_map_t; 610 611 /** 612 * Mappings list 613 */ 614 struct drm_map_list { 615 struct list_head head; /**< list head */ 616 struct drm_hash_item hash; 617 struct drm_local_map *map; /**< mapping */ 618 uint64_t user_token; 619 struct drm_master *master; 620 struct drm_mm_node *file_offset_node; /**< fake offset */ 621 }; 622 623 /** 624 * GEM specific mm private for tracking GEM objects 625 */ 626 struct drm_gem_mm { 627 struct drm_vma_offset_manager vma_manager; 628 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */ 629 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 630 struct unrhdr *idxunr; 631 }; 632 633 634 #include "drm_crtc.h" 635 636 /** 637 * struct drm_master - drm master structure 638 * 639 * @refcount: Refcount for this master object. 640 * @minor: Link back to minor char device we are master for. Immutable. 641 * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex. 642 * @unique_len: Length of unique field. Protected by drm_global_mutex. 643 * @unique_size: Amount allocated. Protected by drm_global_mutex. 644 * @magiclist: Hash of used authentication tokens. Protected by struct_mutex. 645 * @magicfree: List of used authentication tokens. Protected by struct_mutex. 646 * @lock: DRI lock information. 647 * @driver_priv: Pointer to driver-private information. 648 */ 649 struct drm_master { 650 651 struct kref refcount; /* refcount for this master */ 652 653 struct list_head head; /**< each minor contains a list of masters */ 654 struct drm_minor *minor; /**< link back to minor we are a master for */ 655 656 char *unique; /**< Unique identifier: e.g., busid */ 657 int unique_len; /**< Length of unique field */ 658 int unique_size; /**< amount allocated */ 659 660 int blocked; /**< Blocked due to VC switch? */ 661 662 struct drm_open_hash magiclist; 663 struct list_head magicfree; 664 struct drm_lock_data lock; 665 void *driver_priv; 666 }; 667 668 /* Size of ringbuffer for vblank timestamps. Just double-buffer 669 * in initial implementation. 670 */ 671 #define DRM_VBLANKTIME_RBSIZE 2 672 673 /* Flags and return codes for get_vblank_timestamp() driver function. */ 674 #define DRM_CALLED_FROM_VBLIRQ 1 675 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 676 #define DRM_VBLANKTIME_IN_VBLANK (1 << 1) 677 678 /* get_scanout_position() return flags */ 679 #define DRM_SCANOUTPOS_VALID (1 << 0) 680 #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1) 681 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 682 683 #ifndef DMA_BIT_MASK 684 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 685 #endif 686 687 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 688 689 /** 690 * DRM driver structure. This structure represent the common code for 691 * a family of cards. There will one drm_device for each card present 692 * in this family 693 */ 694 struct drm_driver { 695 int (*load)(struct drm_device *, unsigned long flags); 696 int (*use_msi)(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 void (*reclaim_buffers_locked)(struct drm_device *, 704 struct drm_file *file_priv); 705 int (*dma_ioctl)(struct drm_device *dev, void *data, 706 struct drm_file *file_priv); 707 void (*dma_ready)(struct drm_device *); 708 int (*dma_quiescent)(struct drm_device *); 709 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 710 enum drm_lock_flags flags); 711 int (*dma_flush_unblock)(struct drm_device *, int context, 712 enum drm_lock_flags flags); 713 int (*context_ctor)(struct drm_device *dev, int context); 714 int (*context_dtor)(struct drm_device *dev, int context); 715 int (*kernel_context_switch)(struct drm_device *dev, int old, 716 int new); 717 int (*kernel_context_switch_unlock)(struct drm_device *dev); 718 void (*irq_preinstall)(struct drm_device *dev); 719 int (*irq_postinstall)(struct drm_device *dev); 720 void (*irq_uninstall)(struct drm_device *dev); 721 void (*irq_handler)(void *arg); 722 723 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 724 int (*enable_vblank)(struct drm_device *dev, int crtc); 725 void (*disable_vblank)(struct drm_device *dev, int crtc); 726 727 /** 728 * Called by vblank timestamping code. 729 * 730 * Return the current display scanout position from a crtc, and an 731 * optional accurate ktime_get timestamp of when position was measured. 732 * 733 * \param dev DRM device. 734 * \param crtc Id of the crtc to query. 735 * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). 736 * \param *vpos Target location for current vertical scanout position. 737 * \param *hpos Target location for current horizontal scanout position. 738 * \param *stime Target location for timestamp taken immediately before 739 * scanout position query. Can be NULL to skip timestamp. 740 * \param *etime Target location for timestamp taken immediately after 741 * scanout position query. Can be NULL to skip timestamp. 742 * 743 * Returns vpos as a positive number while in active scanout area. 744 * Returns vpos as a negative number inside vblank, counting the number 745 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 746 * until start of active scanout / end of vblank." 747 * 748 * \return Flags, or'ed together as follows: 749 * 750 * DRM_SCANOUTPOS_VALID = Query successful. 751 * DRM_SCANOUTPOS_INVBL = Inside vblank. 752 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 753 * this flag means that returned position may be offset by a constant 754 * but unknown small number of scanlines wrt. real scanout position. 755 * 756 */ 757 int (*get_scanout_position) (struct drm_device *dev, int crtc, 758 unsigned int flags, 759 int *vpos, int *hpos, ktime_t *stime, 760 ktime_t *etime); 761 762 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 763 int *max_error, struct timeval *vblank_time, 764 unsigned flags); 765 766 void (*gem_free_object)(struct drm_gem_object *obj); 767 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 768 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 769 770 struct cdev_pager_ops *gem_pager_ops; 771 772 int (*dumb_create)(struct drm_file *file_priv, 773 struct drm_device *dev, struct drm_mode_create_dumb *args); 774 int (*dumb_map_offset)(struct drm_file *file_priv, 775 struct drm_device *dev, uint32_t handle, uint64_t *offset); 776 int (*dumb_destroy)(struct drm_file *file_priv, 777 struct drm_device *dev, uint32_t handle); 778 779 int (*sysctl_init)(struct drm_device *dev, 780 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 781 void (*sysctl_cleanup)(struct drm_device *dev); 782 783 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 784 785 /** 786 * Called by \c drm_device_is_agp. Typically used to determine if a 787 * card is really attached to AGP or not. 788 * 789 * \param dev DRM device handle 790 * 791 * \returns 792 * One of three values is returned depending on whether or not the 793 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 794 * (return of 1), or may or may not be AGP (return of 2). 795 */ 796 int (*device_is_agp) (struct drm_device * dev); 797 798 int major; 799 int minor; 800 int patchlevel; 801 const char *name; /* Simple driver name */ 802 const char *desc; /* Longer driver name */ 803 const char *date; /* Date of last major changes. */ 804 805 u32 driver_features; 806 int dev_priv_size; 807 const struct drm_ioctl_desc *ioctls; 808 int num_ioctls; 809 }; 810 811 /** 812 * Info file list entry. This structure represents a debugfs or proc file to 813 * be created by the drm core 814 */ 815 struct drm_info_list { 816 const char *name; /** file name */ 817 int (*show)(struct seq_file*, void*); /** show callback */ 818 u32 driver_features; /**< Required driver features for this entry */ 819 void *data; 820 }; 821 822 /** 823 * debugfs node structure. This structure represents a debugfs file. 824 */ 825 struct drm_info_node { 826 struct list_head list; 827 struct drm_minor *minor; 828 const struct drm_info_list *info_ent; 829 struct dentry *dent; 830 }; 831 832 /** 833 * DRM minor structure. This structure represents a drm minor number. 834 */ 835 struct drm_minor { 836 int index; /**< Minor device number */ 837 int type; /**< Control or render */ 838 device_t kdev; /**< OS device */ 839 struct drm_device *dev; 840 841 struct drm_master *master; /* currently active master for this node */ 842 struct list_head master_list; 843 struct drm_mode_group mode_group; 844 }; 845 846 struct drm_pending_vblank_event { 847 struct drm_pending_event base; 848 int pipe; 849 struct drm_event_vblank event; 850 }; 851 852 struct drm_sysctl_info { 853 struct sysctl_ctx_list ctx; 854 char name[2]; 855 }; 856 857 /* Length for the array of resource pointers for drm_get_resource_*. */ 858 #define DRM_MAX_PCI_RESOURCE 6 859 860 struct drm_vblank_crtc { 861 struct drm_device *dev; /* pointer to the drm_device */ 862 wait_queue_head_t queue; /**< VBLANK wait queue */ 863 struct timeval time[DRM_VBLANKTIME_RBSIZE]; /**< timestamp of current count */ 864 struct timer_list disable_timer; /* delayed disable timer */ 865 atomic_t count; /**< number of VBLANK interrupts */ 866 atomic_t refcount; /* number of users of vblank interruptsper crtc */ 867 u32 last; /* protected by dev->vbl_lock, used */ 868 /* for wraparound handling */ 869 u32 last_wait; /* Last vblank seqno waited per CRTC */ 870 unsigned int inmodeset; /* Display driver is setting mode */ 871 int crtc; /* crtc index */ 872 bool enabled; /* so we don't call enable more than 873 once per disable */ 874 }; 875 876 /** 877 * DRM device structure. This structure represent a complete card that 878 * may contain multiple heads. 879 */ 880 struct drm_device { 881 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 882 883 uint16_t pci_subdevice; /* PCI subsystem device id */ 884 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 885 886 char *unique; /* Unique identifier: e.g., busid */ 887 int unique_len; /* Length of unique field */ 888 struct cdev *devnode; /* Device number for mknod */ 889 int if_version; /* Highest interface version set */ 890 891 int flags; /* Flags to open(2) */ 892 893 /* Locks */ 894 struct spinlock dma_lock; /* protects dev->dma */ 895 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 896 struct lock dev_lock; /* protects everything else */ 897 898 /** \name Locks */ 899 /*@{ */ 900 struct lock struct_mutex; /**< For others */ 901 struct lock master_mutex; /**< For drm_minor::master */ 902 /*@} */ 903 904 /** \name Usage Counters */ 905 /*@{ */ 906 int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ 907 struct spinlock buf_lock; /**< For drm_device::buf_use and a few other things. */ 908 int buf_use; /**< Buffers in use -- cannot alloc */ 909 atomic_t buf_alloc; /**< Buffer allocation in progress */ 910 /*@} */ 911 912 913 /** \name Performance counters */ 914 /*@{ */ 915 unsigned long counters; 916 enum drm_stat_type types[15]; 917 atomic_t counts[15]; 918 /*@} */ 919 920 /* Authentication */ 921 struct drm_open_hash magiclist; /**< magic hash table */ 922 struct list_head magicfree; 923 924 struct list_head filelist; 925 926 /** \name Memory management */ 927 /*@{ */ 928 struct list_head maplist; /**< Linked list of regions */ 929 int map_count; /**< Number of mappable regions */ 930 struct drm_open_hash map_hash; /**< User token hash table for maps */ 931 932 /** \name Context handle management */ 933 /*@{ */ 934 struct list_head ctxlist; /**< Linked list of context handles */ 935 int ctx_count; /**< Number of context handles */ 936 struct lock ctxlist_mutex; /**< For ctxlist */ 937 938 struct idr ctx_idr; 939 940 /*@} */ 941 942 struct drm_lock_data lock; /* Information on hardware lock */ 943 944 /* DMA queues (contexts) */ 945 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 946 947 int irq; /* Interrupt used by board */ 948 int irq_type; /* IRQ type (MSI enabled or not) */ 949 int irqrid; /* Interrupt used by board */ 950 struct resource *irqr; /* Resource for interrupt used by board */ 951 void *irqh; /* Handle from bus_setup_intr */ 952 953 /* Storage of resource pointers for drm_get_resource_* */ 954 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 955 int pcirid[DRM_MAX_PCI_RESOURCE]; 956 957 int pci_domain; 958 int pci_bus; 959 int pci_slot; 960 int pci_func; 961 962 /** \name Context support */ 963 /*@{ */ 964 int irq_enabled; /**< True if irq handler is enabled */ 965 __volatile__ long context_flag; /**< Context swapping flag */ 966 __volatile__ long interrupt_flag; /**< Interruption handler flag */ 967 __volatile__ long dma_flag; /**< DMA dispatch flag */ 968 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ 969 int last_checked; /**< Last context checked for DMA */ 970 int last_context; /**< Last current context */ 971 unsigned long last_switch; /**< jiffies at last context switch */ 972 /*@} */ 973 974 /** \name VBLANK IRQ support */ 975 /*@{ */ 976 977 /* 978 * At load time, disabling the vblank interrupt won't be allowed since 979 * old clients may not call the modeset ioctl and therefore misbehave. 980 * Once the modeset ioctl *has* been called though, we can safely 981 * disable them when unused. 982 */ 983 bool vblank_disable_allowed; 984 985 /* 986 * If true, vblank interrupt will be disabled immediately when the 987 * refcount drops to zero, as opposed to via the vblank disable 988 * timer. 989 * This can be set to true it the hardware has a working vblank 990 * counter and the driver uses drm_vblank_on() and drm_vblank_off() 991 * appropriately. 992 */ 993 bool vblank_disable_immediate; 994 995 /* array of size num_crtcs */ 996 struct drm_vblank_crtc *vblank; 997 998 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 999 struct lock vbl_lock; 1000 struct timer_list vblank_disable_timer; 1001 1002 u32 max_vblank_count; /**< size of vblank counter register */ 1003 1004 /** 1005 * List of events 1006 */ 1007 struct list_head vblank_event_list; 1008 struct lock event_lock; 1009 1010 /*@} */ 1011 1012 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 1013 1014 /* Sysctl support */ 1015 struct drm_sysctl_info *sysctl; 1016 1017 1018 drm_sg_mem_t *sg; /* Scatter gather memory */ 1019 unsigned int num_crtcs; /**< Number of CRTCs on this device */ 1020 1021 unsigned long *ctx_bitmap; 1022 void *dev_private; 1023 1024 void *drm_ttm_bdev; 1025 1026 /*@} */ 1027 1028 struct drm_agp_head *agp; /**< AGP data */ 1029 1030 struct device *dev; /**< Device structure */ 1031 struct pci_dev *pdev; /**< PCI device structure */ 1032 int pci_vendor; /**< PCI vendor id */ 1033 int pci_device; /**< PCI device id */ 1034 1035 struct drm_driver *driver; 1036 struct drm_local_map *agp_buffer_map; 1037 unsigned int agp_buffer_token; 1038 struct drm_minor *control; /**< Control node for card */ 1039 struct drm_minor *primary; /**< render type primary screen head */ 1040 1041 struct drm_mode_config mode_config; /**< Current mode config */ 1042 1043 /** \name GEM information */ 1044 /*@{ */ 1045 struct lock object_name_lock; 1046 struct idr object_name_idr; 1047 /*@} */ 1048 void *mm_private; 1049 1050 void *sysctl_private; 1051 char busid_str[128]; 1052 int modesetting; 1053 1054 int switch_power_state; 1055 1056 atomic_t unplugged; /* device has been unplugged or gone away */ 1057 }; 1058 1059 #define DRM_SWITCH_POWER_ON 0 1060 #define DRM_SWITCH_POWER_OFF 1 1061 #define DRM_SWITCH_POWER_CHANGING 2 1062 #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 1063 1064 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1065 int feature) 1066 { 1067 return ((dev->driver->driver_features & feature) ? 1 : 0); 1068 } 1069 1070 static inline void drm_device_set_unplugged(struct drm_device *dev) 1071 { 1072 smp_wmb(); 1073 atomic_set(&dev->unplugged, 1); 1074 } 1075 1076 static inline int drm_device_is_unplugged(struct drm_device *dev) 1077 { 1078 int ret = atomic_read(&dev->unplugged); 1079 smp_rmb(); 1080 return ret; 1081 } 1082 1083 static inline bool drm_is_primary_client(const struct drm_file *file_priv) 1084 { 1085 return 0 /* file_priv->minor->type == DRM_MINOR_LEGACY */; 1086 } 1087 1088 /** 1089 * drm_is_master() - Check whether a DRM open-file is DRM-Master 1090 * @file: DRM open-file context 1091 * 1092 * This checks whether a DRM open-file context is owner of the master context 1093 * attached to it. If a file owns a master context, it's called DRM-Master. 1094 * Per DRM device, only one such file can be DRM-Master at a time. 1095 * 1096 * Returns: True if the file is DRM-Master, otherwise false. 1097 */ 1098 static inline bool drm_is_master(const struct drm_file *file) 1099 { 1100 #if 0 1101 return file->master && file->master == file->minor->master; 1102 #else 1103 return true; 1104 #endif 1105 } 1106 1107 /******************************************************************/ 1108 /** \name Internal function definitions */ 1109 /*@{*/ 1110 1111 #if __OS_HAS_AGP 1112 static inline int drm_core_has_AGP(struct drm_device *dev) 1113 { 1114 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1115 } 1116 #else 1117 #define drm_core_has_AGP(dev) (0) 1118 #endif 1119 1120 extern int drm_notyet_flag; 1121 extern unsigned int drm_rnodes; 1122 extern unsigned int drm_universal_planes; 1123 1124 extern int drm_vblank_offdelay; 1125 extern unsigned int drm_timestamp_precision; 1126 extern unsigned int drm_timestamp_monotonic; 1127 1128 /* Driver support (drm_drv.h) */ 1129 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1130 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1131 int drm_create_cdevs(device_t kdev); 1132 d_ioctl_t drm_ioctl; 1133 extern int drm_lastclose(struct drm_device *dev); 1134 extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags); 1135 1136 /* Device support (drm_fops.h) */ 1137 extern struct lock drm_global_mutex; 1138 d_open_t drm_open; 1139 d_close_t drm_close; 1140 d_read_t drm_read; 1141 d_kqfilter_t drm_kqfilter; 1142 int drm_release(device_t kdev); 1143 1144 d_mmap_t drm_mmap; 1145 d_mmap_single_t drm_mmap_single; 1146 1147 void drm_cdevpriv_dtor(void *cd); 1148 1149 int drm_add_busid_modesetting(struct drm_device *dev, 1150 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1151 1152 /* File operations helpers (drm_fops.c) */ 1153 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1154 DRM_STRUCTPROC *p, 1155 struct drm_device *dev, 1156 struct file *fp); 1157 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1158 DRM_STRUCTPROC *p); 1159 1160 #ifdef DUMBBELL_WIP 1161 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1162 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1163 int *prime_fd); 1164 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1165 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1166 1167 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1168 struct drm_file *file_priv); 1169 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1170 struct drm_file *file_priv); 1171 1172 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1173 dma_addr_t *addrs, int max_pages); 1174 #endif /* DUMBBELL_WIP */ 1175 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1176 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1177 1178 #ifdef DUMBBELL_WIP 1179 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1180 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1181 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1182 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1183 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1184 1185 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1186 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1187 struct drm_gem_object **obj); 1188 #endif /* DUMBBELL_WIP */ 1189 1190 void drm_mem_init(void); 1191 void drm_mem_uninit(void); 1192 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1193 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1194 void drm_ioremapfree(drm_local_map_t *map); 1195 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1196 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1197 1198 /* Locking IOCTL support (drm_lock.c) */ 1199 int drm_lock_take(struct drm_lock_data *lock_data, 1200 unsigned int context); 1201 int drm_lock_transfer(struct drm_lock_data *lock_data, 1202 unsigned int context); 1203 int drm_lock_free(struct drm_lock_data *lock_data, 1204 unsigned int context); 1205 1206 /* 1207 * These are exported to drivers so that they can implement fencing using 1208 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1209 */ 1210 1211 unsigned long drm_get_resource_start(struct drm_device *dev, 1212 unsigned int resource); 1213 unsigned long drm_get_resource_len(struct drm_device *dev, 1214 unsigned int resource); 1215 1216 /* IRQ support (drm_irq.h) */ 1217 extern int drm_irq_install(struct drm_device *dev, int irq); 1218 int drm_irq_uninstall(struct drm_device *dev); 1219 void drm_driver_irq_preinstall(struct drm_device *dev); 1220 void drm_driver_irq_postinstall(struct drm_device *dev); 1221 void drm_driver_irq_uninstall(struct drm_device *dev); 1222 1223 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1224 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1225 struct drm_file *filp); 1226 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1227 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1228 struct timeval *vblanktime); 1229 extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1230 struct drm_pending_vblank_event *e); 1231 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1232 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1233 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1234 extern int drm_crtc_vblank_get(struct drm_crtc *crtc); 1235 extern void drm_crtc_vblank_put(struct drm_crtc *crtc); 1236 extern void drm_wait_one_vblank(struct drm_device *dev, int crtc); 1237 extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc); 1238 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1239 extern void drm_vblank_on(struct drm_device *dev, int crtc); 1240 extern void drm_crtc_vblank_off(struct drm_crtc *crtc); 1241 extern void drm_crtc_vblank_on(struct drm_crtc *crtc); 1242 extern void drm_vblank_cleanup(struct drm_device *dev); 1243 1244 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1245 int crtc, int *max_error, 1246 struct timeval *vblank_time, 1247 unsigned flags, 1248 const struct drm_crtc *refcrtc, 1249 const struct drm_display_mode *mode); 1250 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc, 1251 const struct drm_display_mode *mode); 1252 1253 /** 1254 * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC 1255 * @crtc: which CRTC's vblank waitqueue to retrieve 1256 * 1257 * This function returns a pointer to the vblank waitqueue for the CRTC. 1258 * Drivers can use this to implement vblank waits using wait_event() & co. 1259 */ 1260 static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc) 1261 { 1262 return &crtc->dev->vblank[drm_crtc_index(crtc)].queue; 1263 } 1264 1265 /* Modesetting support */ 1266 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1267 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1268 extern int drm_modeset_ctl(struct drm_device *dev, void *data, 1269 struct drm_file *file_priv); 1270 1271 /* AGP/GART support (drm_agpsupport.h) */ 1272 1273 #include <drm/drm_agpsupport.h> 1274 1275 /* sysctl support (drm_sysctl.h) */ 1276 extern int drm_sysctl_init(struct drm_device *dev); 1277 extern int drm_sysctl_cleanup(struct drm_device *dev); 1278 1279 /* Cache management (drm_memory.c) */ 1280 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1281 1282 /* Locking IOCTL support (drm_drv.c) */ 1283 int drm_lock(struct drm_device *dev, void *data, 1284 struct drm_file *file_priv); 1285 int drm_unlock(struct drm_device *dev, void *data, 1286 struct drm_file *file_priv); 1287 int drm_setversion(struct drm_device *dev, void *data, 1288 struct drm_file *file_priv); 1289 1290 /* 1291 * These are exported to drivers so that they can implement fencing using 1292 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1293 */ 1294 1295 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv); 1296 1297 /* Misc. IOCTL support (drm_ioctl.c) */ 1298 int drm_irq_by_busid(struct drm_device *dev, void *data, 1299 struct drm_file *file_priv); 1300 int drm_getunique(struct drm_device *dev, void *data, 1301 struct drm_file *file_priv); 1302 int drm_setunique(struct drm_device *dev, void *data, 1303 struct drm_file *file_priv); 1304 int drm_getmap(struct drm_device *dev, void *data, 1305 struct drm_file *file_priv); 1306 int drm_getclient(struct drm_device *dev, void *data, 1307 struct drm_file *file_priv); 1308 int drm_getstats(struct drm_device *dev, void *data, 1309 struct drm_file *file_priv); 1310 int drm_getcap(struct drm_device *dev, void *data, 1311 struct drm_file *file_priv); 1312 extern int drm_setclientcap(struct drm_device *dev, void *data, 1313 struct drm_file *file_priv); 1314 int drm_noop(struct drm_device *dev, void *data, 1315 struct drm_file *file_priv); 1316 1317 /* Authentication IOCTL support (drm_auth.c) */ 1318 int drm_getmagic(struct drm_device *dev, void *data, 1319 struct drm_file *file_priv); 1320 int drm_authmagic(struct drm_device *dev, void *data, 1321 struct drm_file *file_priv); 1322 1323 /* Cache management (drm_cache.c) */ 1324 void drm_clflush_virt_range(void *addr, unsigned long length); 1325 1326 /* DMA support (drm_dma.c) */ 1327 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1328 1329 /* IRQ support (drm_irq.c) */ 1330 int drm_control(struct drm_device *dev, void *data, 1331 struct drm_file *file_priv); 1332 1333 /* Stub support (drm_stub.h) */ 1334 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1335 struct drm_file *file_priv); 1336 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1337 struct drm_file *file_priv); 1338 1339 extern void drm_put_dev(struct drm_device *dev); 1340 extern void drm_unplug_dev(struct drm_device *dev); 1341 extern unsigned int drm_debug; 1342 1343 /* Scatter Gather Support (drm_scatter.c) */ 1344 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1345 struct drm_file *file_priv); 1346 int drm_sg_free(struct drm_device *dev, void *data, 1347 struct drm_file *file_priv); 1348 1349 /* consistent PCI memory functions (drm_pci.c) */ 1350 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1351 size_t align); 1352 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1353 1354 /* sysfs support (drm_sysfs.c) */ 1355 struct drm_sysfs_class; 1356 extern struct class *drm_sysfs_create(struct module *owner, char *name); 1357 extern void drm_sysfs_destroy(void); 1358 extern int drm_sysfs_device_add(struct drm_minor *minor); 1359 extern void drm_sysfs_hotplug_event(struct drm_device *dev); 1360 extern void drm_sysfs_device_remove(struct drm_minor *minor); 1361 extern int drm_sysfs_connector_add(struct drm_connector *connector); 1362 extern void drm_sysfs_connector_remove(struct drm_connector *connector); 1363 1364 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1365 struct drm_file *file_priv); 1366 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1367 struct drm_file *file_priv); 1368 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1369 struct drm_file *file_priv); 1370 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1371 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1372 1373 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1374 vm_size_t size, struct vm_object **obj_res, int nprot); 1375 void drm_gem_pager_dtr(void *obj); 1376 1377 struct ttm_bo_device; 1378 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1379 vm_size_t size, struct vm_object **obj_res, int nprot); 1380 struct ttm_buffer_object; 1381 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1382 1383 void drm_device_lock_mtx(struct drm_device *dev); 1384 void drm_device_unlock_mtx(struct drm_device *dev); 1385 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1386 const char *msg, int timeout); 1387 void drm_device_assert_mtx_locked(struct drm_device *dev); 1388 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1389 1390 void drm_device_lock_struct(struct drm_device *dev); 1391 void drm_device_unlock_struct(struct drm_device *dev); 1392 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1393 const char *msg, int timeout); 1394 void drm_device_assert_struct_locked(struct drm_device *dev); 1395 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1396 1397 void drm_compat_locking_init(struct drm_device *dev); 1398 void drm_sleep_locking_init(struct drm_device *dev); 1399 1400 /* XXX glue logic, should be done in drm_pci_init(), pending drm update */ 1401 void drm_init_pdev(struct device *dev, struct pci_dev **pdev); 1402 void drm_fini_pdev(struct pci_dev **pdev); 1403 1404 /* Inline replacements for drm_alloc and friends */ 1405 static __inline__ void * 1406 drm_alloc(size_t size, struct malloc_type *area) 1407 { 1408 return kmalloc(size, area, M_WAITOK | M_NULLOK); 1409 } 1410 1411 static __inline__ void * 1412 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1413 { 1414 return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO); 1415 } 1416 1417 static __inline__ void 1418 drm_free(void *pt, struct malloc_type *area) 1419 { 1420 /* kfree is special!!! */ 1421 if (pt != NULL) 1422 (kfree)(pt, area); 1423 } 1424 1425 static __inline__ void 1426 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1427 { 1428 map->handle = drm_ioremap_wc(dev, map); 1429 } 1430 static __inline__ void 1431 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1432 { 1433 map->handle = drm_ioremap(dev, map); 1434 } 1435 static __inline__ void 1436 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1437 { 1438 if ( map->handle && map->size ) 1439 drm_ioremapfree(map); 1440 } 1441 1442 static __inline__ struct drm_local_map * 1443 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1444 { 1445 struct drm_map_list *_entry; 1446 1447 list_for_each_entry(_entry, &dev->maplist, head) { 1448 if (offset == (unsigned long)_entry->map->handle) 1449 return _entry->map; 1450 } 1451 return NULL; 1452 } 1453 1454 static __inline__ void drm_core_dropmap(struct drm_map *map) 1455 { 1456 } 1457 1458 #include <drm/drm_mem_util.h> 1459 1460 struct drm_device *drm_dev_alloc(struct drm_driver *driver, 1461 struct device *parent); 1462 void drm_dev_ref(struct drm_device *dev); 1463 void drm_dev_unref(struct drm_device *dev); 1464 int drm_dev_register(struct drm_device *dev, unsigned long flags); 1465 void drm_dev_unregister(struct drm_device *dev); 1466 int drm_dev_set_unique(struct drm_device *dev, const char *fmt, ...); 1467 1468 /* FreeBSD compatibility macros */ 1469 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1470 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1471 1472 #define DRM_PCIE_SPEED_25 1 1473 #define DRM_PCIE_SPEED_50 2 1474 #define DRM_PCIE_SPEED_80 4 1475 1476 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1477 1478 /* XXX bad */ 1479 #define drm_can_sleep() (HZ & 1) 1480 1481 #endif /* __KERNEL__ */ 1482 #endif /* _DRM_P_H_ */ 1483