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/wait.h> 116 #include <linux/workqueue.h> 117 118 #include <asm/uaccess.h> 119 120 #include <drm/drm_global.h> 121 122 #include <drm/drm_vma_manager.h> 123 124 struct drm_file; 125 struct drm_device; 126 struct drm_agp_head; 127 struct drm_gem_object; 128 129 struct device_node; 130 struct videomode; 131 132 #include <drm/drm_os_linux.h> 133 #include <drm/drm_hashtab.h> 134 #include <drm/drm_mm.h> 135 136 /* 137 * 4 debug categories are defined: 138 * 139 * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... 140 * This is the category used by the DRM_DEBUG() macro. 141 * 142 * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... 143 * This is the category used by the DRM_DEBUG_DRIVER() macro. 144 * 145 * KMS: used in the modesetting code. 146 * This is the category used by the DRM_DEBUG_KMS() macro. 147 * 148 * PRIME: used in the prime code. 149 * This is the category used by the DRM_DEBUG_PRIME() macro. 150 * 151 * Enabling verbose debug messages is done through the drm.debug parameter, 152 * each category being enabled by a bit. 153 * 154 * drm.debug=0x1 will enable CORE messages 155 * drm.debug=0x2 will enable DRIVER messages 156 * drm.debug=0x3 will enable CORE and DRIVER messages 157 * ... 158 * drm.debug=0xf will enable all messages 159 * 160 * An interesting feature is that it's possible to enable verbose logging at 161 * run-time by echoing the debug value in its sysfs node: 162 * # echo 0xf > /sys/module/drm/parameters/debug 163 */ 164 #define DRM_UT_CORE 0x01 165 #define DRM_UT_DRIVER 0x02 166 #define DRM_UT_KMS 0x04 167 #define DRM_UT_PRIME 0x08 168 169 void drm_ut_debug_printk(const char *function_name, 170 const char *format, ...); 171 172 void drm_err(const char *func, const char *format, ...); 173 174 /***********************************************************************/ 175 /** \name DRM template customization defaults */ 176 /*@{*/ 177 178 /* driver capabilities and requirements mask */ 179 #define DRIVER_USE_AGP 0x1 180 #define DRIVER_REQUIRE_AGP 0x2 181 #define DRIVER_PCI_DMA 0x8 182 #define DRIVER_SG 0x10 183 #define DRIVER_HAVE_DMA 0x20 184 #define DRIVER_HAVE_IRQ 0x40 185 #define DRIVER_IRQ_SHARED 0x80 186 #define DRIVER_DMA_QUEUE 0x200 187 #define DRIVER_GEM 0x1000 188 #define DRIVER_MODESET 0x2000 189 #define DRIVER_PRIME 0x4000 190 #define DRIVER_RENDER 0x8000 191 192 /***********************************************************************/ 193 /** \name Begin the DRM... */ 194 /*@{*/ 195 196 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ 197 198 /*@}*/ 199 200 /***********************************************************************/ 201 /** \name Macros to make printk easier */ 202 /*@{*/ 203 204 /** 205 * Error output. 206 * 207 * \param fmt printf() like format string. 208 * \param arg arguments 209 */ 210 #define DRM_ERROR(fmt, ...) \ 211 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 212 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 213 214 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 215 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 216 #define DRM_GEM_MAX_IDX 0x3fffff 217 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 218 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 219 #define DRM_GEM_MAPPING_MAPOFF(o) \ 220 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 221 222 SYSCTL_DECL(_hw_drm); 223 224 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 225 226 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 227 228 #define __OS_HAS_AGP 1 229 230 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 231 #define DRM_DEV_UID 0 232 #define DRM_DEV_GID 0 233 234 #define DRM_CURPROC curthread 235 #define DRM_STRUCTPROC struct thread 236 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1) 237 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE) 238 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE) 239 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 240 (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout))) 241 #if defined(INVARIANTS) 242 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0); 243 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0); 244 #else 245 #define DRM_LOCK_ASSERT(d) 246 #define DRM_UNLOCK_ASSERT(d) 247 #endif 248 249 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 250 251 typedef void irqreturn_t; 252 #define IRQ_HANDLED /* nothing */ 253 #define IRQ_NONE /* nothing */ 254 255 enum { 256 DRM_IS_NOT_AGP, 257 DRM_IS_AGP, 258 DRM_MIGHT_BE_AGP 259 }; 260 #define DRM_AGP_MEM struct agp_memory_info 261 262 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 263 264 #define DRM_AGP_FIND_DEVICE() agp_find_device() 265 #define DRM_MTRR_WC MDF_WRITECOMBINE 266 267 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 268 do { \ 269 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 270 dev->lock.file_priv != file_priv) { \ 271 DRM_ERROR("%s called without lock held\n", \ 272 __FUNCTION__); \ 273 return EINVAL; \ 274 } \ 275 } while (0) 276 277 /* Returns -errno to shared code */ 278 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 279 for ( ret = 0 ; !ret && !(condition) ; ) { \ 280 DRM_UNLOCK(dev); \ 281 lwkt_serialize_enter(&dev->irq_lock); \ 282 if (!(condition)) { \ 283 tsleep_interlock(&(queue), PCATCH); \ 284 lwkt_serialize_exit(&dev->irq_lock); \ 285 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 286 "drmwtq", (timeout)); \ 287 } else { \ 288 lwkt_serialize_exit(&dev->irq_lock); \ 289 } \ 290 DRM_LOCK(dev); \ 291 } 292 293 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 294 vm_memattr_t memattr); 295 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 296 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 297 298 /***********************************************************************/ 299 /** \name Macros to make printk easier */ 300 /*@{*/ 301 302 303 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 304 305 #define DRM_INFO_ONCE(fmt, ...) \ 306 printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) 307 308 #define DRM_DEBUGBITS_DEBUG 0x1 309 #define DRM_DEBUGBITS_KMS 0x2 310 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 311 #define DRM_DEBUGBITS_VERBOSE 0x8 312 313 #define DRM_DEBUG(fmt, ...) do { \ 314 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 315 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 316 __func__ , ##__VA_ARGS__); \ 317 } while (0) 318 319 #define DRM_DEBUG_VERBOSE(fmt, ...) do { \ 320 if ((drm_debug & DRM_DEBUGBITS_VERBOSE) != 0) \ 321 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 322 __func__ , ##__VA_ARGS__); \ 323 } while (0) 324 325 #define DRM_DEBUG_KMS(fmt, ...) do { \ 326 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 327 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 328 __func__ , ##__VA_ARGS__); \ 329 } while (0) 330 331 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 332 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 333 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 334 __func__ , ##__VA_ARGS__); \ 335 } while (0) 336 337 #define DRM_LOG_KMS(fmt, ...) do { \ 338 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \ 339 __func__ , ##__VA_ARGS__); \ 340 } while (0) 341 342 #define dev_dbg(dev, fmt, ...) do { \ 343 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 344 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 345 } \ 346 } while (0) 347 348 typedef struct drm_pci_id_list 349 { 350 int vendor; 351 int device; 352 long driver_private; 353 char *name; 354 } drm_pci_id_list_t; 355 356 struct drm_msi_blacklist_entry 357 { 358 int vendor; 359 int device; 360 }; 361 362 /** 363 * Ioctl function type. 364 * 365 * \param inode device inode. 366 * \param file_priv DRM file private pointer. 367 * \param cmd command. 368 * \param arg argument. 369 */ 370 typedef int drm_ioctl_t(struct drm_device *dev, void *data, 371 struct drm_file *file_priv); 372 373 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, 374 unsigned long arg); 375 376 #define DRM_IOCTL_NR(n) ((n) & 0xff) 377 378 #define DRM_AUTH 0x1 379 #define DRM_MASTER 0x2 380 #define DRM_ROOT_ONLY 0x4 381 #define DRM_CONTROL_ALLOW 0x8 382 #define DRM_UNLOCKED 0x10 383 #define DRM_RENDER_ALLOW 0x20 384 385 struct drm_ioctl_desc { 386 unsigned int cmd; 387 int flags; 388 drm_ioctl_t *func; 389 unsigned int cmd_drv; 390 const char *name; 391 }; 392 393 /** 394 * Creates a driver or general drm_ioctl_desc array entry for the given 395 * ioctl, for use by drm_ioctl(). 396 */ 397 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 398 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 399 400 typedef struct drm_magic_entry { 401 struct list_head head; 402 struct drm_hash_item hash_item; 403 struct drm_file *priv; 404 struct drm_magic_entry *next; 405 } drm_magic_entry_t; 406 407 typedef struct drm_magic_head { 408 struct drm_magic_entry *head; 409 struct drm_magic_entry *tail; 410 } drm_magic_head_t; 411 412 typedef struct drm_buf { 413 int idx; /**< Index into master buflist */ 414 int total; /**< Buffer size */ 415 int order; /**< log-base-2(total) */ 416 int used; /**< Amount of buffer in use (for DMA) */ 417 unsigned long offset; /**< Byte offset (used internally) */ 418 void *address; /**< Address of buffer */ 419 unsigned long bus_address; /**< Bus address of buffer */ 420 struct drm_buf *next; /**< Kernel-only: used for free list */ 421 __volatile__ int waiting; /**< On kernel DMA queue */ 422 __volatile__ int pending; /**< On hardware DMA queue */ 423 struct drm_file *file_priv; /**< Private of holding file descr */ 424 int context; /**< Kernel queue for this buffer */ 425 int while_locked; /**< Dispatch this buffer while locked */ 426 enum { 427 DRM_LIST_NONE = 0, 428 DRM_LIST_FREE = 1, 429 DRM_LIST_WAIT = 2, 430 DRM_LIST_PEND = 3, 431 DRM_LIST_PRIO = 4, 432 DRM_LIST_RECLAIM = 5 433 } list; /**< Which list we're on */ 434 435 int dev_priv_size; /**< Size of buffer private storage */ 436 void *dev_private; /**< Per-buffer private storage */ 437 } drm_buf_t; 438 439 /** bufs is one longer than it has to be */ 440 struct drm_waitlist { 441 int count; /**< Number of possible buffers */ 442 struct drm_buf **bufs; /**< List of pointers to buffers */ 443 struct drm_buf **rp; /**< Read pointer */ 444 struct drm_buf **wp; /**< Write pointer */ 445 struct drm_buf **end; /**< End pointer */ 446 spinlock_t read_lock; 447 spinlock_t write_lock; 448 }; 449 450 typedef struct drm_dma_handle { 451 void *vaddr; 452 size_t size; 453 bus_addr_t busaddr; 454 bus_dma_tag_t tag; 455 bus_dmamap_t map; 456 } drm_dma_handle_t; 457 458 typedef struct drm_buf_entry { 459 int buf_size; 460 int buf_count; 461 drm_buf_t *buflist; 462 int seg_count; 463 int page_order; 464 struct drm_dma_handle **seglist; 465 466 int low_mark; /**< Low water mark */ 467 int high_mark; /**< High water mark */ 468 } drm_buf_entry_t; 469 470 /* Event queued up for userspace to read */ 471 struct drm_pending_event { 472 struct drm_event *event; 473 struct list_head link; 474 struct drm_file *file_priv; 475 pid_t pid; /* pid of requester, no guarantee it's valid by the time 476 we deliver the event, for tracing only */ 477 void (*destroy)(struct drm_pending_event *event); 478 }; 479 480 /* initial implementaton using a linked list - todo hashtab */ 481 struct drm_prime_file_private { 482 struct list_head head; 483 #ifdef DUMBBELL_WIP 484 struct mutex lock; 485 #endif /* DUMBBELL_WIP */ 486 }; 487 488 /** File private data */ 489 struct drm_file { 490 int authenticated; 491 struct drm_device *dev; 492 int master; 493 494 /* true when the client has asked us to expose stereo 3D mode flags */ 495 bool stereo_allowed; 496 /* 497 * true if client understands CRTC primary planes and cursor planes 498 * in the plane list 499 */ 500 unsigned universal_planes:1; 501 502 pid_t pid; 503 uid_t uid; 504 drm_magic_t magic; 505 unsigned long ioctl_count; 506 struct list_head lhead; 507 struct kqinfo dkq; 508 509 /** Mapping of mm object handles to object pointers. */ 510 struct idr object_idr; 511 /** Lock for synchronization of access to object_idr. */ 512 struct lock table_lock; 513 514 void *driver_priv; 515 516 int is_master; 517 struct drm_master *masterp; 518 519 /** 520 * fbs - List of framebuffers associated with this file. 521 * 522 * Protected by fbs_lock. Note that the fbs list holds a reference on 523 * the fb object to prevent it from untimely disappearing. 524 */ 525 struct list_head fbs; 526 struct lock fbs_lock; 527 528 wait_queue_head_t event_wait; 529 struct list_head event_list; 530 int event_space; 531 532 struct drm_prime_file_private prime; 533 }; 534 535 /** Wait queue */ 536 struct drm_queue { 537 atomic_t use_count; /**< Outstanding uses (+1) */ 538 atomic_t finalization; /**< Finalization in progress */ 539 atomic_t block_count; /**< Count of processes waiting */ 540 atomic_t block_read; /**< Queue blocked for reads */ 541 wait_queue_head_t read_queue; /**< Processes waiting on block_read */ 542 atomic_t block_write; /**< Queue blocked for writes */ 543 wait_queue_head_t write_queue; /**< Processes waiting on block_write */ 544 atomic_t total_queued; /**< Total queued statistic */ 545 atomic_t total_flushed; /**< Total flushes statistic */ 546 atomic_t total_locks; /**< Total locks statistics */ 547 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */ 548 struct drm_waitlist waitlist; /**< Pending buffers */ 549 wait_queue_head_t flush_queue; /**< Processes waiting until flush */ 550 }; 551 552 /** 553 * Lock data. 554 */ 555 struct drm_lock_data { 556 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 557 /** Private of lock holder's file (NULL=kernel) */ 558 struct drm_file *file_priv; 559 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 560 unsigned long lock_time; /**< Time of last lock in jiffies */ 561 }; 562 563 /* This structure, in the struct drm_device, is always initialized while the 564 * device 565 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 566 * when set marks that no further bufs may be allocated until device teardown 567 * occurs (when the last open of the device has closed). The high/low 568 * watermarks of bufs are only touched by the X Server, and thus not 569 * concurrently accessed, so no locking is needed. 570 */ 571 typedef struct drm_device_dma { 572 573 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 574 int buf_count; /**< total number of buffers */ 575 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 576 int seg_count; 577 int page_count; /**< number of pages */ 578 unsigned long *pagelist; /**< page list */ 579 unsigned long byte_count; 580 enum { 581 _DRM_DMA_USE_AGP = 0x01, 582 _DRM_DMA_USE_SG = 0x02, 583 _DRM_DMA_USE_FB = 0x04, 584 _DRM_DMA_USE_PCI_RO = 0x08 585 } flags; 586 587 } drm_device_dma_t; 588 589 typedef struct drm_sg_mem { 590 vm_offset_t vaddr; 591 vm_paddr_t *busaddr; 592 vm_pindex_t pages; 593 } drm_sg_mem_t; 594 595 /** 596 * Kernel side of a mapping 597 */ 598 struct drm_local_map { 599 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 600 unsigned long size; /**< Requested physical size (bytes) */ 601 enum drm_map_type type; /**< Type of memory to map */ 602 enum drm_map_flags flags; /**< Flags */ 603 void *handle; /**< User-space: "Handle" to pass to mmap() */ 604 /**< Kernel-space: kernel-virtual address */ 605 int mtrr; /**< MTRR slot used */ 606 }; 607 608 typedef struct drm_local_map drm_local_map_t; 609 610 /** 611 * Mappings list 612 */ 613 struct drm_map_list { 614 struct list_head head; /**< list head */ 615 struct drm_hash_item hash; 616 struct drm_local_map *map; /**< mapping */ 617 uint64_t user_token; 618 struct drm_master *master; 619 struct drm_mm_node *file_offset_node; /**< fake offset */ 620 }; 621 622 /** 623 * GEM specific mm private for tracking GEM objects 624 */ 625 struct drm_gem_mm { 626 struct drm_vma_offset_manager vma_manager; 627 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */ 628 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 629 struct unrhdr *idxunr; 630 }; 631 632 633 #include "drm_crtc.h" 634 635 /** 636 * struct drm_master - drm master structure 637 * 638 * @refcount: Refcount for this master object. 639 * @minor: Link back to minor char device we are master for. Immutable. 640 * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex. 641 * @unique_len: Length of unique field. Protected by drm_global_mutex. 642 * @unique_size: Amount allocated. Protected by drm_global_mutex. 643 * @magiclist: Hash of used authentication tokens. Protected by struct_mutex. 644 * @magicfree: List of used authentication tokens. Protected by struct_mutex. 645 * @lock: DRI lock information. 646 * @driver_priv: Pointer to driver-private information. 647 */ 648 struct drm_master { 649 650 struct kref refcount; /* refcount for this master */ 651 652 struct list_head head; /**< each minor contains a list of masters */ 653 struct drm_minor *minor; /**< link back to minor we are a master for */ 654 655 char *unique; /**< Unique identifier: e.g., busid */ 656 int unique_len; /**< Length of unique field */ 657 int unique_size; /**< amount allocated */ 658 659 int blocked; /**< Blocked due to VC switch? */ 660 661 struct drm_open_hash magiclist; 662 struct list_head magicfree; 663 struct drm_lock_data lock; 664 void *driver_priv; 665 }; 666 667 /* Size of ringbuffer for vblank timestamps. Just double-buffer 668 * in initial implementation. 669 */ 670 #define DRM_VBLANKTIME_RBSIZE 2 671 672 /* Flags and return codes for get_vblank_timestamp() driver function. */ 673 #define DRM_CALLED_FROM_VBLIRQ 1 674 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 675 #define DRM_VBLANKTIME_IN_VBLANK (1 << 1) 676 677 /* get_scanout_position() return flags */ 678 #define DRM_SCANOUTPOS_VALID (1 << 0) 679 #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1) 680 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 681 682 #ifndef DMA_BIT_MASK 683 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 684 #endif 685 686 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 687 688 /** 689 * DRM driver structure. This structure represent the common code for 690 * a family of cards. There will one drm_device for each card present 691 * in this family 692 */ 693 struct drm_driver { 694 int (*load)(struct drm_device *, unsigned long flags); 695 int (*use_msi)(struct drm_device *, unsigned long flags); 696 int (*firstopen)(struct drm_device *); 697 int (*open)(struct drm_device *, struct drm_file *); 698 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 699 void (*postclose)(struct drm_device *, struct drm_file *); 700 void (*lastclose)(struct drm_device *); 701 int (*unload)(struct drm_device *); 702 void (*reclaim_buffers_locked)(struct drm_device *, 703 struct drm_file *file_priv); 704 int (*dma_ioctl)(struct drm_device *dev, void *data, 705 struct drm_file *file_priv); 706 void (*dma_ready)(struct drm_device *); 707 int (*dma_quiescent)(struct drm_device *); 708 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 709 enum drm_lock_flags flags); 710 int (*dma_flush_unblock)(struct drm_device *, int context, 711 enum drm_lock_flags flags); 712 int (*context_ctor)(struct drm_device *dev, int context); 713 int (*context_dtor)(struct drm_device *dev, int context); 714 int (*kernel_context_switch)(struct drm_device *dev, int old, 715 int new); 716 int (*kernel_context_switch_unlock)(struct drm_device *dev); 717 void (*irq_preinstall)(struct drm_device *dev); 718 int (*irq_postinstall)(struct drm_device *dev); 719 void (*irq_uninstall)(struct drm_device *dev); 720 void (*irq_handler)(void *arg); 721 722 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 723 int (*enable_vblank)(struct drm_device *dev, int crtc); 724 void (*disable_vblank)(struct drm_device *dev, int crtc); 725 726 /** 727 * Called by vblank timestamping code. 728 * 729 * Return the current display scanout position from a crtc, and an 730 * optional accurate ktime_get timestamp of when position was measured. 731 * 732 * \param dev DRM device. 733 * \param crtc Id of the crtc to query. 734 * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). 735 * \param *vpos Target location for current vertical scanout position. 736 * \param *hpos Target location for current horizontal scanout position. 737 * \param *stime Target location for timestamp taken immediately before 738 * scanout position query. Can be NULL to skip timestamp. 739 * \param *etime Target location for timestamp taken immediately after 740 * scanout position query. Can be NULL to skip timestamp. 741 * 742 * Returns vpos as a positive number while in active scanout area. 743 * Returns vpos as a negative number inside vblank, counting the number 744 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 745 * until start of active scanout / end of vblank." 746 * 747 * \return Flags, or'ed together as follows: 748 * 749 * DRM_SCANOUTPOS_VALID = Query successful. 750 * DRM_SCANOUTPOS_INVBL = Inside vblank. 751 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 752 * this flag means that returned position may be offset by a constant 753 * but unknown small number of scanlines wrt. real scanout position. 754 * 755 */ 756 int (*get_scanout_position) (struct drm_device *dev, int crtc, 757 unsigned int flags, 758 int *vpos, int *hpos, ktime_t *stime, 759 ktime_t *etime); 760 761 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 762 int *max_error, struct timeval *vblank_time, 763 unsigned flags); 764 765 void (*gem_free_object)(struct drm_gem_object *obj); 766 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 767 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 768 769 struct cdev_pager_ops *gem_pager_ops; 770 771 int (*dumb_create)(struct drm_file *file_priv, 772 struct drm_device *dev, struct drm_mode_create_dumb *args); 773 int (*dumb_map_offset)(struct drm_file *file_priv, 774 struct drm_device *dev, uint32_t handle, uint64_t *offset); 775 int (*dumb_destroy)(struct drm_file *file_priv, 776 struct drm_device *dev, uint32_t handle); 777 778 int (*sysctl_init)(struct drm_device *dev, 779 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 780 void (*sysctl_cleanup)(struct drm_device *dev); 781 782 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 783 784 /** 785 * Called by \c drm_device_is_agp. Typically used to determine if a 786 * card is really attached to AGP or not. 787 * 788 * \param dev DRM device handle 789 * 790 * \returns 791 * One of three values is returned depending on whether or not the 792 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 793 * (return of 1), or may or may not be AGP (return of 2). 794 */ 795 int (*device_is_agp) (struct drm_device * dev); 796 797 int major; 798 int minor; 799 int patchlevel; 800 const char *name; /* Simple driver name */ 801 const char *desc; /* Longer driver name */ 802 const char *date; /* Date of last major changes. */ 803 804 u32 driver_features; 805 int dev_priv_size; 806 const struct drm_ioctl_desc *ioctls; 807 int num_ioctls; 808 }; 809 810 /** 811 * Info file list entry. This structure represents a debugfs or proc file to 812 * be created by the drm core 813 */ 814 struct drm_info_list { 815 const char *name; /** file name */ 816 int (*show)(struct seq_file*, void*); /** show callback */ 817 u32 driver_features; /**< Required driver features for this entry */ 818 void *data; 819 }; 820 821 /** 822 * debugfs node structure. This structure represents a debugfs file. 823 */ 824 struct drm_info_node { 825 struct list_head list; 826 struct drm_minor *minor; 827 const struct drm_info_list *info_ent; 828 struct dentry *dent; 829 }; 830 831 /** 832 * DRM minor structure. This structure represents a drm minor number. 833 */ 834 struct drm_minor { 835 int index; /**< Minor device number */ 836 int type; /**< Control or render */ 837 device_t kdev; /**< OS device */ 838 struct drm_device *dev; 839 840 struct drm_master *master; /* currently active master for this node */ 841 struct list_head master_list; 842 struct drm_mode_group mode_group; 843 }; 844 845 struct drm_pending_vblank_event { 846 struct drm_pending_event base; 847 int pipe; 848 struct drm_event_vblank event; 849 }; 850 851 struct drm_sysctl_info { 852 struct sysctl_ctx_list ctx; 853 char name[2]; 854 }; 855 856 /* Length for the array of resource pointers for drm_get_resource_*. */ 857 #define DRM_MAX_PCI_RESOURCE 6 858 859 struct drm_vblank_crtc { 860 struct drm_device *dev; /* pointer to the drm_device */ 861 wait_queue_head_t queue; /**< VBLANK wait queue */ 862 struct timeval time[DRM_VBLANKTIME_RBSIZE]; /**< timestamp of current count */ 863 struct timer_list disable_timer; /* delayed disable timer */ 864 atomic_t count; /**< number of VBLANK interrupts */ 865 atomic_t refcount; /* number of users of vblank interruptsper crtc */ 866 u32 last; /* protected by dev->vbl_lock, used */ 867 /* for wraparound handling */ 868 u32 last_wait; /* Last vblank seqno waited per CRTC */ 869 unsigned int inmodeset; /* Display driver is setting mode */ 870 int crtc; /* crtc index */ 871 bool enabled; /* so we don't call enable more than 872 once per disable */ 873 }; 874 875 /** 876 * DRM device structure. This structure represent a complete card that 877 * may contain multiple heads. 878 */ 879 struct drm_device { 880 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 881 882 uint16_t pci_subdevice; /* PCI subsystem device id */ 883 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 884 885 char *unique; /* Unique identifier: e.g., busid */ 886 int unique_len; /* Length of unique field */ 887 struct cdev *devnode; /* Device number for mknod */ 888 int if_version; /* Highest interface version set */ 889 890 int flags; /* Flags to open(2) */ 891 892 /* Locks */ 893 struct spinlock dma_lock; /* protects dev->dma */ 894 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 895 struct lock dev_lock; /* protects everything else */ 896 897 /** \name Locks */ 898 /*@{ */ 899 struct lock struct_mutex; /**< For others */ 900 struct lock master_mutex; /**< For drm_minor::master */ 901 /*@} */ 902 903 /** \name Usage Counters */ 904 /*@{ */ 905 int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ 906 struct spinlock buf_lock; /**< For drm_device::buf_use and a few other things. */ 907 int buf_use; /**< Buffers in use -- cannot alloc */ 908 atomic_t buf_alloc; /**< Buffer allocation in progress */ 909 /*@} */ 910 911 912 /** \name Performance counters */ 913 /*@{ */ 914 unsigned long counters; 915 enum drm_stat_type types[15]; 916 atomic_t counts[15]; 917 /*@} */ 918 919 /* Authentication */ 920 struct drm_open_hash magiclist; /**< magic hash table */ 921 struct list_head magicfree; 922 923 struct list_head filelist; 924 925 /** \name Memory management */ 926 /*@{ */ 927 struct list_head maplist; /**< Linked list of regions */ 928 int map_count; /**< Number of mappable regions */ 929 struct drm_open_hash map_hash; /**< User token hash table for maps */ 930 931 /** \name Context handle management */ 932 /*@{ */ 933 struct list_head ctxlist; /**< Linked list of context handles */ 934 int ctx_count; /**< Number of context handles */ 935 struct lock ctxlist_mutex; /**< For ctxlist */ 936 937 struct idr ctx_idr; 938 939 /*@} */ 940 941 struct drm_lock_data lock; /* Information on hardware lock */ 942 943 /* DMA queues (contexts) */ 944 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 945 946 int irq; /* Interrupt used by board */ 947 int irq_type; /* IRQ type (MSI enabled or not) */ 948 int irqrid; /* Interrupt used by board */ 949 struct resource *irqr; /* Resource for interrupt used by board */ 950 void *irqh; /* Handle from bus_setup_intr */ 951 952 /* Storage of resource pointers for drm_get_resource_* */ 953 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 954 int pcirid[DRM_MAX_PCI_RESOURCE]; 955 956 int pci_domain; 957 int pci_bus; 958 int pci_slot; 959 int pci_func; 960 961 /** \name Context support */ 962 /*@{ */ 963 int irq_enabled; /**< True if irq handler is enabled */ 964 __volatile__ long context_flag; /**< Context swapping flag */ 965 __volatile__ long interrupt_flag; /**< Interruption handler flag */ 966 __volatile__ long dma_flag; /**< DMA dispatch flag */ 967 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ 968 int last_checked; /**< Last context checked for DMA */ 969 int last_context; /**< Last current context */ 970 unsigned long last_switch; /**< jiffies at last context switch */ 971 /*@} */ 972 973 /** \name VBLANK IRQ support */ 974 /*@{ */ 975 976 /* 977 * At load time, disabling the vblank interrupt won't be allowed since 978 * old clients may not call the modeset ioctl and therefore misbehave. 979 * Once the modeset ioctl *has* been called though, we can safely 980 * disable them when unused. 981 */ 982 bool vblank_disable_allowed; 983 984 /* 985 * If true, vblank interrupt will be disabled immediately when the 986 * refcount drops to zero, as opposed to via the vblank disable 987 * timer. 988 * This can be set to true it the hardware has a working vblank 989 * counter and the driver uses drm_vblank_on() and drm_vblank_off() 990 * appropriately. 991 */ 992 bool vblank_disable_immediate; 993 994 /* array of size num_crtcs */ 995 struct drm_vblank_crtc *vblank; 996 997 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 998 struct lock vbl_lock; 999 struct timer_list vblank_disable_timer; 1000 1001 u32 max_vblank_count; /**< size of vblank counter register */ 1002 1003 /** 1004 * List of events 1005 */ 1006 struct list_head vblank_event_list; 1007 struct lock event_lock; 1008 1009 /*@} */ 1010 1011 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 1012 1013 /* Sysctl support */ 1014 struct drm_sysctl_info *sysctl; 1015 1016 1017 drm_sg_mem_t *sg; /* Scatter gather memory */ 1018 unsigned int num_crtcs; /**< Number of CRTCs on this device */ 1019 1020 unsigned long *ctx_bitmap; 1021 void *dev_private; 1022 1023 void *drm_ttm_bdev; 1024 1025 /*@} */ 1026 1027 struct drm_agp_head *agp; /**< AGP data */ 1028 1029 struct device *dev; /**< Device structure */ 1030 struct pci_dev *pdev; /**< PCI device structure */ 1031 int pci_vendor; /**< PCI vendor id */ 1032 int pci_device; /**< PCI device id */ 1033 1034 struct drm_driver *driver; 1035 struct drm_local_map *agp_buffer_map; 1036 unsigned int agp_buffer_token; 1037 struct drm_minor *control; /**< Control node for card */ 1038 struct drm_minor *primary; /**< render type primary screen head */ 1039 1040 struct drm_mode_config mode_config; /**< Current mode config */ 1041 1042 /** \name GEM information */ 1043 /*@{ */ 1044 struct lock object_name_lock; 1045 struct idr object_name_idr; 1046 /*@} */ 1047 void *mm_private; 1048 1049 void *sysctl_private; 1050 char busid_str[128]; 1051 int modesetting; 1052 1053 int switch_power_state; 1054 1055 atomic_t unplugged; /* device has been unplugged or gone away */ 1056 }; 1057 1058 #define DRM_SWITCH_POWER_ON 0 1059 #define DRM_SWITCH_POWER_OFF 1 1060 #define DRM_SWITCH_POWER_CHANGING 2 1061 #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 1062 1063 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1064 int feature) 1065 { 1066 return ((dev->driver->driver_features & feature) ? 1 : 0); 1067 } 1068 1069 static inline void drm_device_set_unplugged(struct drm_device *dev) 1070 { 1071 smp_wmb(); 1072 atomic_set(&dev->unplugged, 1); 1073 } 1074 1075 static inline int drm_device_is_unplugged(struct drm_device *dev) 1076 { 1077 int ret = atomic_read(&dev->unplugged); 1078 smp_rmb(); 1079 return ret; 1080 } 1081 1082 static inline bool drm_is_primary_client(const struct drm_file *file_priv) 1083 { 1084 return 0 /* file_priv->minor->type == DRM_MINOR_LEGACY */; 1085 } 1086 1087 /** 1088 * drm_is_master() - Check whether a DRM open-file is DRM-Master 1089 * @file: DRM open-file context 1090 * 1091 * This checks whether a DRM open-file context is owner of the master context 1092 * attached to it. If a file owns a master context, it's called DRM-Master. 1093 * Per DRM device, only one such file can be DRM-Master at a time. 1094 * 1095 * Returns: True if the file is DRM-Master, otherwise false. 1096 */ 1097 static inline bool drm_is_master(const struct drm_file *file) 1098 { 1099 #if 0 1100 return file->master && file->master == file->minor->master; 1101 #else 1102 return true; 1103 #endif 1104 } 1105 1106 /******************************************************************/ 1107 /** \name Internal function definitions */ 1108 /*@{*/ 1109 1110 #if __OS_HAS_AGP 1111 static inline int drm_core_has_AGP(struct drm_device *dev) 1112 { 1113 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1114 } 1115 #else 1116 #define drm_core_has_AGP(dev) (0) 1117 #endif 1118 1119 extern int drm_notyet_flag; 1120 extern unsigned int drm_rnodes; 1121 extern unsigned int drm_universal_planes; 1122 1123 extern int drm_vblank_offdelay; 1124 extern unsigned int drm_timestamp_precision; 1125 extern unsigned int drm_timestamp_monotonic; 1126 1127 /* Driver support (drm_drv.h) */ 1128 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1129 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1130 int drm_create_cdevs(device_t kdev); 1131 d_ioctl_t drm_ioctl; 1132 extern int drm_lastclose(struct drm_device *dev); 1133 extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags); 1134 1135 /* Device support (drm_fops.h) */ 1136 extern struct lock drm_global_mutex; 1137 d_open_t drm_open; 1138 d_close_t drm_close; 1139 d_read_t drm_read; 1140 d_kqfilter_t drm_kqfilter; 1141 int drm_release(device_t kdev); 1142 1143 d_mmap_t drm_mmap; 1144 d_mmap_single_t drm_mmap_single; 1145 1146 void drm_cdevpriv_dtor(void *cd); 1147 1148 int drm_add_busid_modesetting(struct drm_device *dev, 1149 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1150 1151 /* File operations helpers (drm_fops.c) */ 1152 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1153 DRM_STRUCTPROC *p, 1154 struct drm_device *dev, 1155 struct file *fp); 1156 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1157 DRM_STRUCTPROC *p); 1158 1159 #ifdef DUMBBELL_WIP 1160 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1161 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1162 int *prime_fd); 1163 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1164 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1165 1166 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1167 struct drm_file *file_priv); 1168 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1169 struct drm_file *file_priv); 1170 1171 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1172 dma_addr_t *addrs, int max_pages); 1173 #endif /* DUMBBELL_WIP */ 1174 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1175 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1176 1177 #ifdef DUMBBELL_WIP 1178 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1179 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1180 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1181 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1182 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1183 1184 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1185 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1186 struct drm_gem_object **obj); 1187 #endif /* DUMBBELL_WIP */ 1188 1189 void drm_mem_init(void); 1190 void drm_mem_uninit(void); 1191 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1192 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1193 void drm_ioremapfree(drm_local_map_t *map); 1194 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1195 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1196 1197 /* Locking IOCTL support (drm_lock.c) */ 1198 int drm_lock_take(struct drm_lock_data *lock_data, 1199 unsigned int context); 1200 int drm_lock_transfer(struct drm_lock_data *lock_data, 1201 unsigned int context); 1202 int drm_lock_free(struct drm_lock_data *lock_data, 1203 unsigned int context); 1204 1205 /* 1206 * These are exported to drivers so that they can implement fencing using 1207 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1208 */ 1209 1210 unsigned long drm_get_resource_start(struct drm_device *dev, 1211 unsigned int resource); 1212 unsigned long drm_get_resource_len(struct drm_device *dev, 1213 unsigned int resource); 1214 1215 /* IRQ support (drm_irq.h) */ 1216 extern int drm_irq_install(struct drm_device *dev, int irq); 1217 int drm_irq_uninstall(struct drm_device *dev); 1218 void drm_driver_irq_preinstall(struct drm_device *dev); 1219 void drm_driver_irq_postinstall(struct drm_device *dev); 1220 void drm_driver_irq_uninstall(struct drm_device *dev); 1221 1222 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1223 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1224 struct drm_file *filp); 1225 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1226 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1227 struct timeval *vblanktime); 1228 extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1229 struct drm_pending_vblank_event *e); 1230 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1231 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1232 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1233 extern int drm_crtc_vblank_get(struct drm_crtc *crtc); 1234 extern void drm_crtc_vblank_put(struct drm_crtc *crtc); 1235 extern void drm_wait_one_vblank(struct drm_device *dev, int crtc); 1236 extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc); 1237 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1238 extern void drm_vblank_on(struct drm_device *dev, int crtc); 1239 extern void drm_crtc_vblank_off(struct drm_crtc *crtc); 1240 extern void drm_crtc_vblank_on(struct drm_crtc *crtc); 1241 extern void drm_vblank_cleanup(struct drm_device *dev); 1242 1243 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1244 int crtc, int *max_error, 1245 struct timeval *vblank_time, 1246 unsigned flags, 1247 const struct drm_crtc *refcrtc, 1248 const struct drm_display_mode *mode); 1249 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc, 1250 const struct drm_display_mode *mode); 1251 1252 /** 1253 * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC 1254 * @crtc: which CRTC's vblank waitqueue to retrieve 1255 * 1256 * This function returns a pointer to the vblank waitqueue for the CRTC. 1257 * Drivers can use this to implement vblank waits using wait_event() & co. 1258 */ 1259 static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc) 1260 { 1261 return &crtc->dev->vblank[drm_crtc_index(crtc)].queue; 1262 } 1263 1264 /* Modesetting support */ 1265 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1266 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1267 extern int drm_modeset_ctl(struct drm_device *dev, void *data, 1268 struct drm_file *file_priv); 1269 1270 /* AGP/GART support (drm_agpsupport.h) */ 1271 1272 #include <drm/drm_agpsupport.h> 1273 1274 /* sysctl support (drm_sysctl.h) */ 1275 extern int drm_sysctl_init(struct drm_device *dev); 1276 extern int drm_sysctl_cleanup(struct drm_device *dev); 1277 1278 /* Cache management (drm_memory.c) */ 1279 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1280 1281 /* Locking IOCTL support (drm_drv.c) */ 1282 int drm_lock(struct drm_device *dev, void *data, 1283 struct drm_file *file_priv); 1284 int drm_unlock(struct drm_device *dev, void *data, 1285 struct drm_file *file_priv); 1286 int drm_setversion(struct drm_device *dev, void *data, 1287 struct drm_file *file_priv); 1288 1289 /* 1290 * These are exported to drivers so that they can implement fencing using 1291 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1292 */ 1293 1294 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv); 1295 1296 /* Misc. IOCTL support (drm_ioctl.c) */ 1297 int drm_irq_by_busid(struct drm_device *dev, void *data, 1298 struct drm_file *file_priv); 1299 int drm_getunique(struct drm_device *dev, void *data, 1300 struct drm_file *file_priv); 1301 int drm_setunique(struct drm_device *dev, void *data, 1302 struct drm_file *file_priv); 1303 int drm_getmap(struct drm_device *dev, void *data, 1304 struct drm_file *file_priv); 1305 int drm_getclient(struct drm_device *dev, void *data, 1306 struct drm_file *file_priv); 1307 int drm_getstats(struct drm_device *dev, void *data, 1308 struct drm_file *file_priv); 1309 int drm_getcap(struct drm_device *dev, void *data, 1310 struct drm_file *file_priv); 1311 extern int drm_setclientcap(struct drm_device *dev, void *data, 1312 struct drm_file *file_priv); 1313 int drm_noop(struct drm_device *dev, void *data, 1314 struct drm_file *file_priv); 1315 1316 /* Authentication IOCTL support (drm_auth.c) */ 1317 int drm_getmagic(struct drm_device *dev, void *data, 1318 struct drm_file *file_priv); 1319 int drm_authmagic(struct drm_device *dev, void *data, 1320 struct drm_file *file_priv); 1321 1322 /* Cache management (drm_cache.c) */ 1323 void drm_clflush_virt_range(void *addr, unsigned long length); 1324 1325 /* DMA support (drm_dma.c) */ 1326 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1327 1328 /* IRQ support (drm_irq.c) */ 1329 int drm_control(struct drm_device *dev, void *data, 1330 struct drm_file *file_priv); 1331 1332 /* Stub support (drm_stub.h) */ 1333 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1334 struct drm_file *file_priv); 1335 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1336 struct drm_file *file_priv); 1337 1338 extern void drm_put_dev(struct drm_device *dev); 1339 extern void drm_unplug_dev(struct drm_device *dev); 1340 extern unsigned int drm_debug; 1341 1342 /* Scatter Gather Support (drm_scatter.c) */ 1343 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1344 struct drm_file *file_priv); 1345 int drm_sg_free(struct drm_device *dev, void *data, 1346 struct drm_file *file_priv); 1347 1348 /* consistent PCI memory functions (drm_pci.c) */ 1349 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1350 size_t align); 1351 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1352 1353 /* sysfs support (drm_sysfs.c) */ 1354 struct drm_sysfs_class; 1355 extern struct class *drm_sysfs_create(struct module *owner, char *name); 1356 extern void drm_sysfs_destroy(void); 1357 extern int drm_sysfs_device_add(struct drm_minor *minor); 1358 extern void drm_sysfs_hotplug_event(struct drm_device *dev); 1359 extern void drm_sysfs_device_remove(struct drm_minor *minor); 1360 extern int drm_sysfs_connector_add(struct drm_connector *connector); 1361 extern void drm_sysfs_connector_remove(struct drm_connector *connector); 1362 1363 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1364 struct drm_file *file_priv); 1365 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1366 struct drm_file *file_priv); 1367 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1368 struct drm_file *file_priv); 1369 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1370 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1371 1372 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1373 vm_size_t size, struct vm_object **obj_res, int nprot); 1374 void drm_gem_pager_dtr(void *obj); 1375 1376 struct ttm_bo_device; 1377 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1378 vm_size_t size, struct vm_object **obj_res, int nprot); 1379 struct ttm_buffer_object; 1380 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1381 1382 void drm_device_lock_mtx(struct drm_device *dev); 1383 void drm_device_unlock_mtx(struct drm_device *dev); 1384 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1385 const char *msg, int timeout); 1386 void drm_device_assert_mtx_locked(struct drm_device *dev); 1387 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1388 1389 void drm_device_lock_struct(struct drm_device *dev); 1390 void drm_device_unlock_struct(struct drm_device *dev); 1391 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1392 const char *msg, int timeout); 1393 void drm_device_assert_struct_locked(struct drm_device *dev); 1394 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1395 1396 void drm_compat_locking_init(struct drm_device *dev); 1397 void drm_sleep_locking_init(struct drm_device *dev); 1398 1399 /* XXX glue logic, should be done in drm_pci_init(), pending drm update */ 1400 void drm_init_pdev(struct device *dev, struct pci_dev **pdev); 1401 void drm_fini_pdev(struct pci_dev **pdev); 1402 1403 /* Inline replacements for drm_alloc and friends */ 1404 static __inline__ void * 1405 drm_alloc(size_t size, struct malloc_type *area) 1406 { 1407 return kmalloc(size, area, M_WAITOK | M_NULLOK); 1408 } 1409 1410 static __inline__ void * 1411 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1412 { 1413 return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO); 1414 } 1415 1416 static __inline__ void 1417 drm_free(void *pt, struct malloc_type *area) 1418 { 1419 kfree(pt); 1420 } 1421 1422 static __inline__ void 1423 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1424 { 1425 map->handle = drm_ioremap_wc(dev, map); 1426 } 1427 static __inline__ void 1428 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1429 { 1430 map->handle = drm_ioremap(dev, map); 1431 } 1432 static __inline__ void 1433 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1434 { 1435 if ( map->handle && map->size ) 1436 drm_ioremapfree(map); 1437 } 1438 1439 static __inline__ struct drm_local_map * 1440 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1441 { 1442 struct drm_map_list *_entry; 1443 1444 list_for_each_entry(_entry, &dev->maplist, head) { 1445 if (offset == (unsigned long)_entry->map->handle) 1446 return _entry->map; 1447 } 1448 return NULL; 1449 } 1450 1451 static __inline__ void drm_core_dropmap(struct drm_map *map) 1452 { 1453 } 1454 1455 #include <drm/drm_mem_util.h> 1456 1457 struct drm_device *drm_dev_alloc(struct drm_driver *driver, 1458 struct device *parent); 1459 void drm_dev_ref(struct drm_device *dev); 1460 void drm_dev_unref(struct drm_device *dev); 1461 int drm_dev_register(struct drm_device *dev, unsigned long flags); 1462 void drm_dev_unregister(struct drm_device *dev); 1463 int drm_dev_set_unique(struct drm_device *dev, const char *fmt, ...); 1464 1465 /* FreeBSD compatibility macros */ 1466 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1467 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1468 1469 #define DRM_PCIE_SPEED_25 1 1470 #define DRM_PCIE_SPEED_50 2 1471 #define DRM_PCIE_SPEED_80 4 1472 1473 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1474 1475 /* XXX bad */ 1476 #define drm_can_sleep() (HZ & 1) 1477 1478 #endif /* __KERNEL__ */ 1479 #endif /* _DRM_P_H_ */ 1480