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 <sys/sbuf.h> 64 #include <sys/taskqueue.h> 65 #include <sys/tree.h> 66 #include <vm/vm.h> 67 #include <vm/pmap.h> 68 #include <vm/vm_extern.h> 69 #include <vm/vm_kern.h> 70 #include <vm/vm_map.h> 71 #include <vm/vm_object.h> 72 #include <vm/vm_page2.h> 73 #include <vm/vm_pager.h> 74 #include <vm/vm_param.h> 75 #include <machine/param.h> 76 #include <machine/pmap.h> 77 #ifdef __x86_64__ 78 #include <machine/specialreg.h> 79 #endif 80 #include <machine/sysarch.h> 81 #include <sys/endian.h> 82 #include <sys/mman.h> 83 #include <sys/rman.h> 84 #include <sys/memrange.h> 85 #include <dev/agp/agpvar.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/capability.h> 97 #include <linux/err.h> 98 #include <linux/idr.h> 99 #include <linux/pci.h> 100 #include <linux/jiffies.h> 101 #include <linux/kernel.h> 102 #include <linux/kref.h> 103 #include <linux/list.h> 104 #include <linux/mm.h> 105 #include <linux/moduleparam.h> 106 #include <linux/mutex.h> 107 #include <linux/slab.h> 108 #include <linux/scatterlist.h> 109 #include <linux/timer.h> 110 #include <asm/io.h> 111 #include <linux/seq_file.h> 112 #include <linux/types.h> 113 #include <linux/wait.h> 114 #include <linux/workqueue.h> 115 116 #include <asm/uaccess.h> 117 118 #include <drm/drm_vma_manager.h> 119 120 struct drm_file; 121 struct drm_device; 122 123 struct device_node; 124 struct videomode; 125 126 #include <drm/drm_os_linux.h> 127 #include <drm/drm_hashtab.h> 128 #include <drm/drm_mm.h> 129 130 /* 131 * 4 debug categories are defined: 132 * 133 * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... 134 * This is the category used by the DRM_DEBUG() macro. 135 * 136 * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... 137 * This is the category used by the DRM_DEBUG_DRIVER() macro. 138 * 139 * KMS: used in the modesetting code. 140 * This is the category used by the DRM_DEBUG_KMS() macro. 141 * 142 * PRIME: used in the prime code. 143 * This is the category used by the DRM_DEBUG_PRIME() macro. 144 * 145 * Enabling verbose debug messages is done through the drm.debug parameter, 146 * each category being enabled by a bit. 147 * 148 * drm.debug=0x1 will enable CORE messages 149 * drm.debug=0x2 will enable DRIVER messages 150 * drm.debug=0x3 will enable CORE and DRIVER messages 151 * ... 152 * drm.debug=0xf will enable all messages 153 * 154 * An interesting feature is that it's possible to enable verbose logging at 155 * run-time by echoing the debug value in its sysfs node: 156 * # echo 0xf > /sys/module/drm/parameters/debug 157 */ 158 #define DRM_UT_CORE 0x01 159 #define DRM_UT_DRIVER 0x02 160 #define DRM_UT_KMS 0x04 161 #define DRM_UT_PRIME 0x08 162 163 #ifdef DRM_DEBUG 164 # if DRM_DEBUG>1 165 # define DRM_DEBUG_DEFAULT_ON 2 166 # else 167 # define DRM_DEBUG_DEFAULT_ON 1 168 # endif 169 #undef DRM_DEBUG 170 #endif /* DRM_DEBUG */ 171 172 #define DRM_DEBUGBITS_DEBUG 0x1 173 #define DRM_DEBUGBITS_KMS 0x2 174 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 175 #define DRM_DEBUGBITS_VERBOSE 0x8 176 177 void drm_ut_debug_printk(unsigned int request_level, 178 const char *prefix, 179 const char *function_name, 180 const char *format, ...); 181 182 int drm_err(const char *func, const char *format, ...); 183 184 /***********************************************************************/ 185 /** \name DRM template customization defaults */ 186 /*@{*/ 187 188 /* driver capabilities and requirements mask */ 189 #define DRIVER_USE_AGP 0x1 190 #define DRIVER_REQUIRE_AGP 0x2 191 #define DRIVER_PCI_DMA 0x8 192 #define DRIVER_SG 0x10 193 #define DRIVER_HAVE_DMA 0x20 194 #define DRIVER_HAVE_IRQ 0x40 195 #define DRIVER_IRQ_SHARED 0x80 196 #define DRIVER_DMA_QUEUE 0x200 197 #define DRIVER_GEM 0x1000 198 #define DRIVER_MODESET 0x2000 199 #define DRIVER_PRIME 0x4000 200 #define DRIVER_RENDER 0x8000 201 202 /***********************************************************************/ 203 /** \name Begin the DRM... */ 204 /*@{*/ 205 206 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then 207 also include looping detection. */ 208 209 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ 210 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */ 211 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */ 212 213 #define DRM_MAP_HASH_OFFSET 0x10000000 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 * Error output. 305 * 306 * \param fmt printf() like format string. 307 * \param arg arguments 308 */ 309 #define DRM_ERROR(fmt, ...) \ 310 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 311 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 312 313 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 314 315 #define DRM_INFO_ONCE(fmt, ...) \ 316 printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) 317 318 #define DRM_DEBUG(fmt, ...) do { \ 319 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 320 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 321 __func__ , ##__VA_ARGS__); \ 322 } while (0) 323 324 #define DRM_DEBUG_VERBOSE(fmt, ...) do { \ 325 if ((drm_debug & DRM_DEBUGBITS_VERBOSE) != 0) \ 326 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 327 __func__ , ##__VA_ARGS__); \ 328 } while (0) 329 330 #define DRM_DEBUG_KMS(fmt, ...) do { \ 331 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 332 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 333 __func__ , ##__VA_ARGS__); \ 334 } while (0) 335 336 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 337 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 338 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 339 __func__ , ##__VA_ARGS__); \ 340 } while (0) 341 342 #define DRM_LOG_KMS(fmt, ...) do { \ 343 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \ 344 __func__ , ##__VA_ARGS__); \ 345 } while (0) 346 347 #define dev_dbg(dev, fmt, ...) do { \ 348 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 349 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 350 } \ 351 } while (0) 352 353 typedef struct drm_pci_id_list 354 { 355 int vendor; 356 int device; 357 long driver_private; 358 char *name; 359 } drm_pci_id_list_t; 360 361 struct drm_msi_blacklist_entry 362 { 363 int vendor; 364 int device; 365 }; 366 367 /** 368 * Ioctl function type. 369 * 370 * \param inode device inode. 371 * \param file_priv DRM file private pointer. 372 * \param cmd command. 373 * \param arg argument. 374 */ 375 typedef int drm_ioctl_t(struct drm_device *dev, void *data, 376 struct drm_file *file_priv); 377 378 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, 379 unsigned long arg); 380 381 #define DRM_IOCTL_NR(n) ((n) & 0xff) 382 383 #define DRM_AUTH 0x1 384 #define DRM_MASTER 0x2 385 #define DRM_ROOT_ONLY 0x4 386 #define DRM_CONTROL_ALLOW 0x8 387 #define DRM_UNLOCKED 0x10 388 #define DRM_RENDER_ALLOW 0x20 389 390 struct drm_ioctl_desc { 391 unsigned int cmd; 392 int flags; 393 drm_ioctl_t *func; 394 unsigned int cmd_drv; 395 const char *name; 396 }; 397 398 /** 399 * Creates a driver or general drm_ioctl_desc array entry for the given 400 * ioctl, for use by drm_ioctl(). 401 */ 402 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 403 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 404 405 typedef struct drm_magic_entry { 406 struct list_head head; 407 struct drm_hash_item hash_item; 408 struct drm_file *priv; 409 struct drm_magic_entry *next; 410 } drm_magic_entry_t; 411 412 typedef struct drm_magic_head { 413 struct drm_magic_entry *head; 414 struct drm_magic_entry *tail; 415 } drm_magic_head_t; 416 417 typedef struct drm_buf { 418 int idx; /**< Index into master buflist */ 419 int total; /**< Buffer size */ 420 int order; /**< log-base-2(total) */ 421 int used; /**< Amount of buffer in use (for DMA) */ 422 unsigned long offset; /**< Byte offset (used internally) */ 423 void *address; /**< Address of buffer */ 424 unsigned long bus_address; /**< Bus address of buffer */ 425 struct drm_buf *next; /**< Kernel-only: used for free list */ 426 __volatile__ int waiting; /**< On kernel DMA queue */ 427 __volatile__ int pending; /**< On hardware DMA queue */ 428 struct drm_file *file_priv; /**< Private of holding file descr */ 429 int context; /**< Kernel queue for this buffer */ 430 int while_locked; /**< Dispatch this buffer while locked */ 431 enum { 432 DRM_LIST_NONE = 0, 433 DRM_LIST_FREE = 1, 434 DRM_LIST_WAIT = 2, 435 DRM_LIST_PEND = 3, 436 DRM_LIST_PRIO = 4, 437 DRM_LIST_RECLAIM = 5 438 } list; /**< Which list we're on */ 439 440 int dev_priv_size; /**< Size of buffer private storage */ 441 void *dev_private; /**< Per-buffer private storage */ 442 } drm_buf_t; 443 444 /** bufs is one longer than it has to be */ 445 struct drm_waitlist { 446 int count; /**< Number of possible buffers */ 447 struct drm_buf **bufs; /**< List of pointers to buffers */ 448 struct drm_buf **rp; /**< Read pointer */ 449 struct drm_buf **wp; /**< Write pointer */ 450 struct drm_buf **end; /**< End pointer */ 451 spinlock_t read_lock; 452 spinlock_t write_lock; 453 }; 454 455 struct drm_freelist { 456 int initialized; /* Freelist in use */ 457 atomic_t count; /* Number of free buffers */ 458 drm_buf_t *next; /* End pointer */ 459 460 wait_queue_head_t waiting; /**< Processes waiting on free bufs */ 461 int low_mark; /* Low water mark */ 462 int high_mark; /* High water mark */ 463 }; 464 465 typedef struct drm_dma_handle { 466 void *vaddr; 467 size_t size; 468 bus_addr_t busaddr; 469 bus_dma_tag_t tag; 470 bus_dmamap_t map; 471 } drm_dma_handle_t; 472 473 typedef struct drm_buf_entry { 474 int buf_size; 475 int buf_count; 476 drm_buf_t *buflist; 477 int seg_count; 478 drm_dma_handle_t **seglist; 479 int page_order; 480 481 struct drm_freelist freelist; 482 } drm_buf_entry_t; 483 484 /* Event queued up for userspace to read */ 485 struct drm_pending_event { 486 struct drm_event *event; 487 struct list_head link; 488 struct drm_file *file_priv; 489 pid_t pid; /* pid of requester, no guarantee it's valid by the time 490 we deliver the event, for tracing only */ 491 void (*destroy)(struct drm_pending_event *event); 492 }; 493 494 /* initial implementaton using a linked list - todo hashtab */ 495 struct drm_prime_file_private { 496 struct list_head head; 497 #ifdef DUMBBELL_WIP 498 struct mutex lock; 499 #endif /* DUMBBELL_WIP */ 500 }; 501 502 /** File private data */ 503 struct drm_file { 504 int authenticated; 505 struct drm_device *dev; 506 int master; 507 508 /* true when the client has asked us to expose stereo 3D mode flags */ 509 bool stereo_allowed; 510 /* 511 * true if client understands CRTC primary planes and cursor planes 512 * in the plane list 513 */ 514 unsigned universal_planes:1; 515 516 pid_t pid; 517 uid_t uid; 518 drm_magic_t magic; 519 unsigned long ioctl_count; 520 struct list_head lhead; 521 struct kqinfo dkq; 522 523 /** Mapping of mm object handles to object pointers. */ 524 struct idr object_idr; 525 /** Lock for synchronization of access to object_idr. */ 526 struct lock table_lock; 527 528 void *driver_priv; 529 530 int is_master; 531 struct drm_master *masterp; 532 533 /** 534 * fbs - List of framebuffers associated with this file. 535 * 536 * Protected by fbs_lock. Note that the fbs list holds a reference on 537 * the fb object to prevent it from untimely disappearing. 538 */ 539 struct list_head fbs; 540 struct lock fbs_lock; 541 542 wait_queue_head_t event_wait; 543 struct list_head event_list; 544 int event_space; 545 546 struct drm_prime_file_private prime; 547 }; 548 549 /** Wait queue */ 550 struct drm_queue { 551 atomic_t use_count; /**< Outstanding uses (+1) */ 552 atomic_t finalization; /**< Finalization in progress */ 553 atomic_t block_count; /**< Count of processes waiting */ 554 atomic_t block_read; /**< Queue blocked for reads */ 555 wait_queue_head_t read_queue; /**< Processes waiting on block_read */ 556 atomic_t block_write; /**< Queue blocked for writes */ 557 wait_queue_head_t write_queue; /**< Processes waiting on block_write */ 558 atomic_t total_queued; /**< Total queued statistic */ 559 atomic_t total_flushed; /**< Total flushes statistic */ 560 atomic_t total_locks; /**< Total locks statistics */ 561 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */ 562 struct drm_waitlist waitlist; /**< Pending buffers */ 563 wait_queue_head_t flush_queue; /**< Processes waiting until flush */ 564 }; 565 566 /** 567 * Lock data. 568 */ 569 struct drm_lock_data { 570 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 571 /** Private of lock holder's file (NULL=kernel) */ 572 struct drm_file *file_priv; 573 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 574 unsigned long lock_time; /**< Time of last lock in jiffies */ 575 }; 576 577 /* This structure, in the struct drm_device, is always initialized while the 578 * device 579 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 580 * when set marks that no further bufs may be allocated until device teardown 581 * occurs (when the last open of the device has closed). The high/low 582 * watermarks of bufs are only touched by the X Server, and thus not 583 * concurrently accessed, so no locking is needed. 584 */ 585 typedef struct drm_device_dma { 586 587 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 588 int buf_count; /**< total number of buffers */ 589 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 590 int seg_count; 591 int page_count; /**< number of pages */ 592 unsigned long *pagelist; /**< page list */ 593 unsigned long byte_count; 594 enum { 595 _DRM_DMA_USE_AGP = 0x01, 596 _DRM_DMA_USE_SG = 0x02, 597 _DRM_DMA_USE_FB = 0x04, 598 _DRM_DMA_USE_PCI_RO = 0x08 599 } flags; 600 601 } drm_device_dma_t; 602 603 typedef struct drm_agp_mem { 604 void *handle; 605 unsigned long bound; /* address */ 606 int pages; 607 struct drm_agp_mem *prev; 608 struct drm_agp_mem *next; 609 } drm_agp_mem_t; 610 611 typedef struct drm_agp_head { 612 device_t agpdev; 613 struct agp_info agp_info; 614 const char *chipset; 615 drm_agp_mem_t *memory; 616 unsigned long mode; 617 int enabled; 618 int acquired; 619 unsigned long base; 620 int agp_mtrr; 621 int cant_use_aperture; 622 unsigned long page_mask; 623 } drm_agp_head_t; 624 625 typedef struct drm_sg_mem { 626 vm_offset_t vaddr; 627 vm_paddr_t *busaddr; 628 vm_pindex_t pages; 629 } drm_sg_mem_t; 630 631 /** 632 * Kernel side of a mapping 633 */ 634 struct drm_local_map { 635 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 636 unsigned long size; /**< Requested physical size (bytes) */ 637 enum drm_map_type type; /**< Type of memory to map */ 638 enum drm_map_flags flags; /**< Flags */ 639 void *handle; /**< User-space: "Handle" to pass to mmap() */ 640 /**< Kernel-space: kernel-virtual address */ 641 int mtrr; /**< MTRR slot used */ 642 }; 643 644 typedef struct drm_local_map drm_local_map_t; 645 646 /** 647 * Mappings list 648 */ 649 struct drm_map_list { 650 struct list_head head; /**< list head */ 651 struct drm_hash_item hash; 652 struct drm_local_map *map; /**< mapping */ 653 uint64_t user_token; 654 struct drm_master *master; 655 struct drm_mm_node *file_offset_node; /**< fake offset */ 656 }; 657 658 /** 659 * Context handle list 660 */ 661 struct drm_ctx_list { 662 struct list_head head; /**< list head */ 663 drm_context_t handle; /**< context handle */ 664 struct drm_file *tag; /**< associated fd private data */ 665 }; 666 667 /* location of GART table */ 668 #define DRM_ATI_GART_MAIN 1 669 #define DRM_ATI_GART_FB 2 670 671 #define DRM_ATI_GART_PCI 1 672 #define DRM_ATI_GART_PCIE 2 673 #define DRM_ATI_GART_IGP 3 674 675 struct drm_ati_pcigart_info { 676 int gart_table_location; 677 int gart_reg_if; 678 void *addr; 679 dma_addr_t bus_addr; 680 dma_addr_t table_mask; 681 dma_addr_t member_mask; 682 struct drm_dma_handle *table_handle; 683 drm_local_map_t mapping; 684 int table_size; 685 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 686 }; 687 688 /** 689 * GEM specific mm private for tracking GEM objects 690 */ 691 struct drm_gem_mm { 692 struct drm_vma_offset_manager vma_manager; 693 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */ 694 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 695 struct unrhdr *idxunr; 696 }; 697 698 struct drm_gem_object { 699 /** Reference count of this object */ 700 struct kref refcount; 701 702 /** 703 * handle_count - gem file_priv handle count of this object 704 * 705 * Each handle also holds a reference. Note that when the handle_count 706 * drops to 0 any global names (e.g. the id in the flink namespace) will 707 * be cleared. 708 * 709 * Protected by dev->object_name_lock. 710 * */ 711 unsigned handle_count; 712 713 /** Related drm device */ 714 struct drm_device *dev; 715 716 /** File representing the shmem storage: filp in Linux parlance */ 717 vm_object_t vm_obj; 718 719 /* Mapping info for this object */ 720 struct drm_vma_offset_node vma_node; 721 bool on_map; 722 struct drm_hash_item map_list; 723 724 /** 725 * Size of the object, in bytes. Immutable over the object's 726 * lifetime. 727 */ 728 size_t size; 729 730 /** 731 * Global name for this object, starts at 1. 0 means unnamed. 732 * Access is covered by the object_name_lock in the related drm_device 733 */ 734 int name; 735 736 /** 737 * Memory domains. These monitor which caches contain read/write data 738 * related to the object. When transitioning from one set of domains 739 * to another, the driver is called to ensure that caches are suitably 740 * flushed and invalidated 741 */ 742 uint32_t read_domains; 743 uint32_t write_domain; 744 745 /** 746 * While validating an exec operation, the 747 * new read/write domain values are computed here. 748 * They will be transferred to the above values 749 * at the point that any cache flushing occurs 750 */ 751 uint32_t pending_read_domains; 752 uint32_t pending_write_domain; 753 754 #ifdef DUMBBELL_WIP 755 /* dma buf exported from this GEM object */ 756 struct dma_buf *export_dma_buf; 757 758 /* dma buf attachment backing this object */ 759 struct dma_buf_attachment *import_attach; 760 #endif /* DUMBBELL_WIP */ 761 }; 762 763 #include "drm_crtc.h" 764 765 /** 766 * struct drm_master - drm master structure 767 * 768 * @refcount: Refcount for this master object. 769 * @minor: Link back to minor char device we are master for. Immutable. 770 * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex. 771 * @unique_len: Length of unique field. Protected by drm_global_mutex. 772 * @unique_size: Amount allocated. Protected by drm_global_mutex. 773 * @magiclist: Hash of used authentication tokens. Protected by struct_mutex. 774 * @magicfree: List of used authentication tokens. Protected by struct_mutex. 775 * @lock: DRI lock information. 776 * @driver_priv: Pointer to driver-private information. 777 */ 778 struct drm_master { 779 780 struct kref refcount; /* refcount for this master */ 781 782 struct list_head head; /**< each minor contains a list of masters */ 783 struct drm_minor *minor; /**< link back to minor we are a master for */ 784 785 char *unique; /**< Unique identifier: e.g., busid */ 786 int unique_len; /**< Length of unique field */ 787 int unique_size; /**< amount allocated */ 788 789 int blocked; /**< Blocked due to VC switch? */ 790 791 struct drm_open_hash magiclist; 792 struct list_head magicfree; 793 struct drm_lock_data lock; 794 void *driver_priv; 795 }; 796 797 /* Size of ringbuffer for vblank timestamps. Just double-buffer 798 * in initial implementation. 799 */ 800 #define DRM_VBLANKTIME_RBSIZE 2 801 802 /* Flags and return codes for get_vblank_timestamp() driver function. */ 803 #define DRM_CALLED_FROM_VBLIRQ 1 804 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 805 #define DRM_VBLANKTIME_INVBL (1 << 1) 806 807 /* get_scanout_position() return flags */ 808 #define DRM_SCANOUTPOS_VALID (1 << 0) 809 #define DRM_SCANOUTPOS_INVBL (1 << 1) 810 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 811 812 #ifndef DMA_BIT_MASK 813 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 814 #endif 815 816 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 817 818 /** 819 * DRM driver structure. This structure represent the common code for 820 * a family of cards. There will one drm_device for each card present 821 * in this family 822 */ 823 struct drm_driver { 824 int (*load)(struct drm_device *, unsigned long flags); 825 int (*use_msi)(struct drm_device *, unsigned long flags); 826 int (*firstopen)(struct drm_device *); 827 int (*open)(struct drm_device *, struct drm_file *); 828 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 829 void (*postclose)(struct drm_device *, struct drm_file *); 830 void (*lastclose)(struct drm_device *); 831 int (*unload)(struct drm_device *); 832 void (*reclaim_buffers_locked)(struct drm_device *, 833 struct drm_file *file_priv); 834 int (*dma_ioctl)(struct drm_device *dev, void *data, 835 struct drm_file *file_priv); 836 void (*dma_ready)(struct drm_device *); 837 int (*dma_quiescent)(struct drm_device *); 838 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 839 enum drm_lock_flags flags); 840 int (*dma_flush_unblock)(struct drm_device *, int context, 841 enum drm_lock_flags flags); 842 int (*context_ctor)(struct drm_device *dev, int context); 843 int (*context_dtor)(struct drm_device *dev, int context); 844 int (*kernel_context_switch)(struct drm_device *dev, int old, 845 int new); 846 int (*kernel_context_switch_unlock)(struct drm_device *dev); 847 void (*irq_preinstall)(struct drm_device *dev); 848 int (*irq_postinstall)(struct drm_device *dev); 849 void (*irq_uninstall)(struct drm_device *dev); 850 void (*irq_handler)(void *arg); 851 852 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 853 int (*enable_vblank)(struct drm_device *dev, int crtc); 854 void (*disable_vblank)(struct drm_device *dev, int crtc); 855 856 /** 857 * Called by vblank timestamping code. 858 * 859 * Return the current display scanout position from a crtc, and an 860 * optional accurate ktime_get timestamp of when position was measured. 861 * 862 * \param dev DRM device. 863 * \param crtc Id of the crtc to query. 864 * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). 865 * \param *vpos Target location for current vertical scanout position. 866 * \param *hpos Target location for current horizontal scanout position. 867 * \param *stime Target location for timestamp taken immediately before 868 * scanout position query. Can be NULL to skip timestamp. 869 * \param *etime Target location for timestamp taken immediately after 870 * scanout position query. Can be NULL to skip timestamp. 871 * 872 * Returns vpos as a positive number while in active scanout area. 873 * Returns vpos as a negative number inside vblank, counting the number 874 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 875 * until start of active scanout / end of vblank." 876 * 877 * \return Flags, or'ed together as follows: 878 * 879 * DRM_SCANOUTPOS_VALID = Query successful. 880 * DRM_SCANOUTPOS_INVBL = Inside vblank. 881 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 882 * this flag means that returned position may be offset by a constant 883 * but unknown small number of scanlines wrt. real scanout position. 884 * 885 */ 886 int (*get_scanout_position) (struct drm_device *dev, int crtc, 887 unsigned int flags, 888 int *vpos, int *hpos, ktime_t *stime, 889 ktime_t *etime); 890 891 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 892 int *max_error, struct timeval *vblank_time, 893 unsigned flags); 894 895 void (*gem_free_object)(struct drm_gem_object *obj); 896 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 897 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 898 899 struct cdev_pager_ops *gem_pager_ops; 900 901 int (*dumb_create)(struct drm_file *file_priv, 902 struct drm_device *dev, struct drm_mode_create_dumb *args); 903 int (*dumb_map_offset)(struct drm_file *file_priv, 904 struct drm_device *dev, uint32_t handle, uint64_t *offset); 905 int (*dumb_destroy)(struct drm_file *file_priv, 906 struct drm_device *dev, uint32_t handle); 907 908 int (*sysctl_init)(struct drm_device *dev, 909 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 910 void (*sysctl_cleanup)(struct drm_device *dev); 911 912 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 913 914 /** 915 * Called by \c drm_device_is_agp. Typically used to determine if a 916 * card is really attached to AGP or not. 917 * 918 * \param dev DRM device handle 919 * 920 * \returns 921 * One of three values is returned depending on whether or not the 922 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 923 * (return of 1), or may or may not be AGP (return of 2). 924 */ 925 int (*device_is_agp) (struct drm_device * dev); 926 927 int major; 928 int minor; 929 int patchlevel; 930 const char *name; /* Simple driver name */ 931 const char *desc; /* Longer driver name */ 932 const char *date; /* Date of last major changes. */ 933 934 u32 driver_features; 935 int dev_priv_size; 936 const struct drm_ioctl_desc *ioctls; 937 int num_ioctls; 938 }; 939 940 /** 941 * Info file list entry. This structure represents a debugfs or proc file to 942 * be created by the drm core 943 */ 944 struct drm_info_list { 945 const char *name; /** file name */ 946 int (*show)(struct seq_file*, void*); /** show callback */ 947 u32 driver_features; /**< Required driver features for this entry */ 948 void *data; 949 }; 950 951 /** 952 * debugfs node structure. This structure represents a debugfs file. 953 */ 954 struct drm_info_node { 955 struct list_head list; 956 struct drm_minor *minor; 957 const struct drm_info_list *info_ent; 958 struct dentry *dent; 959 }; 960 961 /** 962 * DRM minor structure. This structure represents a drm minor number. 963 */ 964 struct drm_minor { 965 int index; /**< Minor device number */ 966 int type; /**< Control or render */ 967 device_t kdev; /**< OS device */ 968 struct drm_device *dev; 969 970 struct drm_master *master; /* currently active master for this node */ 971 struct list_head master_list; 972 struct drm_mode_group mode_group; 973 }; 974 975 struct drm_pending_vblank_event { 976 struct drm_pending_event base; 977 int pipe; 978 struct drm_event_vblank event; 979 }; 980 981 struct drm_sysctl_info { 982 struct sysctl_ctx_list ctx; 983 char name[2]; 984 }; 985 986 /* Length for the array of resource pointers for drm_get_resource_*. */ 987 #define DRM_MAX_PCI_RESOURCE 6 988 989 struct drm_vblank_crtc { 990 struct drm_device *dev; /* pointer to the drm_device */ 991 wait_queue_head_t queue; /**< VBLANK wait queue */ 992 struct timeval time[DRM_VBLANKTIME_RBSIZE]; /**< timestamp of current count */ 993 struct timer_list disable_timer; /* delayed disable timer */ 994 atomic_t count; /**< number of VBLANK interrupts */ 995 atomic_t refcount; /* number of users of vblank interruptsper crtc */ 996 u32 last; /* protected by dev->vbl_lock, used */ 997 /* for wraparound handling */ 998 u32 last_wait; /* Last vblank seqno waited per CRTC */ 999 unsigned int inmodeset; /* Display driver is setting mode */ 1000 int crtc; /* crtc index */ 1001 bool enabled; /* so we don't call enable more than 1002 once per disable */ 1003 }; 1004 1005 /** 1006 * DRM device structure. This structure represent a complete card that 1007 * may contain multiple heads. 1008 */ 1009 struct drm_device { 1010 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 1011 1012 uint16_t pci_subdevice; /* PCI subsystem device id */ 1013 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 1014 1015 char *unique; /* Unique identifier: e.g., busid */ 1016 int unique_len; /* Length of unique field */ 1017 struct cdev *devnode; /* Device number for mknod */ 1018 int if_version; /* Highest interface version set */ 1019 1020 int flags; /* Flags to open(2) */ 1021 1022 /* Locks */ 1023 struct spinlock dma_lock; /* protects dev->dma */ 1024 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 1025 struct lock dev_lock; /* protects everything else */ 1026 1027 /** \name Locks */ 1028 /*@{ */ 1029 struct lock struct_mutex; /**< For others */ 1030 /*@} */ 1031 1032 /** \name Usage Counters */ 1033 /*@{ */ 1034 int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ 1035 int buf_use; /* Buffers in use -- cannot alloc */ 1036 /*@} */ 1037 1038 1039 /** \name Performance counters */ 1040 /*@{ */ 1041 unsigned long counters; 1042 enum drm_stat_type types[15]; 1043 atomic_t counts[15]; 1044 /*@} */ 1045 1046 /* Authentication */ 1047 struct drm_open_hash magiclist; /**< magic hash table */ 1048 struct list_head magicfree; 1049 1050 struct list_head filelist; 1051 1052 /** \name Memory management */ 1053 /*@{ */ 1054 struct list_head maplist; /**< Linked list of regions */ 1055 int map_count; /**< Number of mappable regions */ 1056 struct drm_open_hash map_hash; /**< User token hash table for maps */ 1057 1058 /** \name Context handle management */ 1059 /*@{ */ 1060 struct list_head ctxlist; /**< Linked list of context handles */ 1061 int ctx_count; /**< Number of context handles */ 1062 struct lock ctxlist_mutex; /**< For ctxlist */ 1063 1064 struct idr ctx_idr; 1065 1066 /*@} */ 1067 1068 struct drm_lock_data lock; /* Information on hardware lock */ 1069 1070 /* DMA queues (contexts) */ 1071 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 1072 1073 int irq; /* Interrupt used by board */ 1074 int irq_type; /* IRQ type (MSI enabled or not) */ 1075 int irqrid; /* Interrupt used by board */ 1076 struct resource *irqr; /* Resource for interrupt used by board */ 1077 void *irqh; /* Handle from bus_setup_intr */ 1078 1079 /* Storage of resource pointers for drm_get_resource_* */ 1080 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 1081 int pcirid[DRM_MAX_PCI_RESOURCE]; 1082 1083 int pci_domain; 1084 int pci_bus; 1085 int pci_slot; 1086 int pci_func; 1087 1088 /** \name Context support */ 1089 /*@{ */ 1090 int irq_enabled; /**< True if irq handler is enabled */ 1091 __volatile__ long context_flag; /**< Context swapping flag */ 1092 __volatile__ long interrupt_flag; /**< Interruption handler flag */ 1093 __volatile__ long dma_flag; /**< DMA dispatch flag */ 1094 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ 1095 int last_checked; /**< Last context checked for DMA */ 1096 int last_context; /**< Last current context */ 1097 unsigned long last_switch; /**< jiffies at last context switch */ 1098 /*@} */ 1099 1100 /** \name VBLANK IRQ support */ 1101 /*@{ */ 1102 1103 /* 1104 * At load time, disabling the vblank interrupt won't be allowed since 1105 * old clients may not call the modeset ioctl and therefore misbehave. 1106 * Once the modeset ioctl *has* been called though, we can safely 1107 * disable them when unused. 1108 */ 1109 bool vblank_disable_allowed; 1110 1111 /* array of size num_crtcs */ 1112 struct drm_vblank_crtc *vblank; 1113 1114 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 1115 struct lock vbl_lock; 1116 struct timer_list vblank_disable_timer; 1117 1118 u32 max_vblank_count; /**< size of vblank counter register */ 1119 1120 /** 1121 * List of events 1122 */ 1123 struct list_head vblank_event_list; 1124 struct lock event_lock; 1125 1126 /*@} */ 1127 1128 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 1129 1130 /* Sysctl support */ 1131 struct drm_sysctl_info *sysctl; 1132 int sysctl_node_idx; 1133 1134 1135 drm_sg_mem_t *sg; /* Scatter gather memory */ 1136 unsigned int num_crtcs; /**< Number of CRTCs on this device */ 1137 1138 unsigned long *ctx_bitmap; 1139 void *dev_private; 1140 1141 void *drm_ttm_bdev; 1142 1143 /*@} */ 1144 1145 struct drm_agp_head *agp; /**< AGP data */ 1146 1147 struct device *dev; /**< Device structure */ 1148 struct pci_dev *pdev; /**< PCI device structure */ 1149 int pci_vendor; /**< PCI vendor id */ 1150 int pci_device; /**< PCI device id */ 1151 1152 struct drm_driver *driver; 1153 struct drm_local_map *agp_buffer_map; 1154 unsigned int agp_buffer_token; 1155 struct drm_minor *control; /**< Control node for card */ 1156 struct drm_minor *primary; /**< render type primary screen head */ 1157 1158 struct drm_mode_config mode_config; /**< Current mode config */ 1159 1160 /** \name GEM information */ 1161 /*@{ */ 1162 struct lock object_name_lock; 1163 struct idr object_name_idr; 1164 /*@} */ 1165 void *mm_private; 1166 1167 void *sysctl_private; 1168 char busid_str[128]; 1169 int modesetting; 1170 1171 int switch_power_state; 1172 1173 atomic_t unplugged; /* device has been unplugged or gone away */ 1174 }; 1175 1176 #define DRM_SWITCH_POWER_ON 0 1177 #define DRM_SWITCH_POWER_OFF 1 1178 #define DRM_SWITCH_POWER_CHANGING 2 1179 #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 1180 1181 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1182 int feature) 1183 { 1184 return ((dev->driver->driver_features & feature) ? 1 : 0); 1185 } 1186 1187 static inline int drm_device_is_unplugged(struct drm_device *dev) 1188 { 1189 int ret = atomic_read(&dev->unplugged); 1190 smp_rmb(); 1191 return ret; 1192 } 1193 1194 static inline bool drm_is_primary_client(const struct drm_file *file_priv) 1195 { 1196 return 0 /* file_priv->minor->type == DRM_MINOR_LEGACY */; 1197 } 1198 1199 #if __OS_HAS_AGP 1200 static inline int drm_core_has_AGP(struct drm_device *dev) 1201 { 1202 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1203 } 1204 #else 1205 #define drm_core_has_AGP(dev) (0) 1206 #endif 1207 1208 enum dmi_field { 1209 DMI_NONE, 1210 DMI_BIOS_VENDOR, 1211 DMI_BIOS_VERSION, 1212 DMI_BIOS_DATE, 1213 DMI_SYS_VENDOR, 1214 DMI_PRODUCT_NAME, 1215 DMI_PRODUCT_VERSION, 1216 DMI_PRODUCT_SERIAL, 1217 DMI_PRODUCT_UUID, 1218 DMI_BOARD_VENDOR, 1219 DMI_BOARD_NAME, 1220 DMI_BOARD_VERSION, 1221 DMI_BOARD_SERIAL, 1222 DMI_BOARD_ASSET_TAG, 1223 DMI_CHASSIS_VENDOR, 1224 DMI_CHASSIS_TYPE, 1225 DMI_CHASSIS_VERSION, 1226 DMI_CHASSIS_SERIAL, 1227 DMI_CHASSIS_ASSET_TAG, 1228 DMI_STRING_MAX, 1229 }; 1230 1231 struct dmi_strmatch { 1232 unsigned char slot; 1233 char substr[79]; 1234 }; 1235 1236 struct dmi_system_id { 1237 int (*callback)(const struct dmi_system_id *); 1238 const char *ident; 1239 struct dmi_strmatch matches[4]; 1240 }; 1241 #define DMI_MATCH(a, b) {(a), (b)} 1242 bool dmi_check_system(const struct dmi_system_id *); 1243 1244 extern int drm_notyet_flag; 1245 extern unsigned int drm_debug; 1246 extern unsigned int drm_rnodes; 1247 extern unsigned int drm_universal_planes; 1248 1249 extern unsigned int drm_vblank_offdelay; 1250 extern unsigned int drm_timestamp_precision; 1251 extern unsigned int drm_timestamp_monotonic; 1252 1253 /* Device setup support (drm_drv.c) */ 1254 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1255 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1256 int drm_create_cdevs(device_t kdev); 1257 1258 d_ioctl_t drm_ioctl; 1259 extern int drm_lastclose(struct drm_device *dev); 1260 1261 /* Device support (drm_fops.h) */ 1262 extern struct lock drm_global_mutex; 1263 d_open_t drm_open; 1264 d_close_t drm_close; 1265 d_read_t drm_read; 1266 d_kqfilter_t drm_kqfilter; 1267 int drm_release(device_t kdev); 1268 1269 d_mmap_t drm_mmap; 1270 d_mmap_single_t drm_mmap_single; 1271 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1272 1273 void drm_cdevpriv_dtor(void *cd); 1274 1275 void drm_event_wakeup(struct drm_pending_event *e); 1276 1277 int drm_add_busid_modesetting(struct drm_device *dev, 1278 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1279 1280 /* File operations helpers (drm_fops.c) */ 1281 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1282 DRM_STRUCTPROC *p, 1283 struct drm_device *dev, 1284 struct file *fp); 1285 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1286 DRM_STRUCTPROC *p); 1287 1288 #ifdef DUMBBELL_WIP 1289 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1290 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1291 int *prime_fd); 1292 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1293 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1294 1295 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1296 struct drm_file *file_priv); 1297 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1298 struct drm_file *file_priv); 1299 1300 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1301 dma_addr_t *addrs, int max_pages); 1302 #endif /* DUMBBELL_WIP */ 1303 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1304 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1305 1306 int drm_gem_dumb_destroy(struct drm_file *file, 1307 struct drm_device *dev, 1308 uint32_t handle); 1309 1310 #ifdef DUMBBELL_WIP 1311 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1312 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1313 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1314 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1315 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1316 1317 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1318 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1319 struct drm_gem_object **obj); 1320 #endif /* DUMBBELL_WIP */ 1321 1322 /* Memory management support (drm_memory.h) */ 1323 #include <drm/drm_memory.h> 1324 void drm_mem_init(void); 1325 void drm_mem_uninit(void); 1326 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1327 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1328 void drm_ioremapfree(drm_local_map_t *map); 1329 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1330 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1331 1332 int drm_ctxbitmap_init(struct drm_device *dev); 1333 void drm_ctxbitmap_cleanup(struct drm_device *dev); 1334 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1335 1336 /* Locking IOCTL support (drm_lock.c) */ 1337 int drm_lock_take(struct drm_lock_data *lock_data, 1338 unsigned int context); 1339 int drm_lock_transfer(struct drm_lock_data *lock_data, 1340 unsigned int context); 1341 int drm_lock_free(struct drm_lock_data *lock_data, 1342 unsigned int context); 1343 1344 /* 1345 * These are exported to drivers so that they can implement fencing using 1346 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1347 */ 1348 1349 unsigned long drm_get_resource_start(struct drm_device *dev, 1350 unsigned int resource); 1351 unsigned long drm_get_resource_len(struct drm_device *dev, 1352 unsigned int resource); 1353 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1354 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1355 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1356 extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1357 unsigned int size, enum drm_map_type type, 1358 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1359 1360 /* DMA support (drm_dma.c) */ 1361 int drm_dma_setup(struct drm_device *dev); 1362 void drm_dma_takedown(struct drm_device *dev); 1363 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1364 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1365 #define drm_core_reclaim_buffers drm_reclaim_buffers 1366 1367 /* IRQ support (drm_irq.h) */ 1368 extern int drm_irq_install(struct drm_device *dev, int irq); 1369 int drm_irq_uninstall(struct drm_device *dev); 1370 void drm_driver_irq_preinstall(struct drm_device *dev); 1371 void drm_driver_irq_postinstall(struct drm_device *dev); 1372 void drm_driver_irq_uninstall(struct drm_device *dev); 1373 1374 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1375 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1376 struct drm_file *filp); 1377 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1378 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1379 struct timeval *vblanktime); 1380 extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1381 struct drm_pending_vblank_event *e); 1382 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1383 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1384 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1385 extern int drm_crtc_vblank_get(struct drm_crtc *crtc); 1386 extern void drm_crtc_vblank_put(struct drm_crtc *crtc); 1387 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1388 extern void drm_vblank_on(struct drm_device *dev, int crtc); 1389 extern void drm_crtc_vblank_off(struct drm_crtc *crtc); 1390 extern void drm_crtc_vblank_on(struct drm_crtc *crtc); 1391 extern void drm_vblank_cleanup(struct drm_device *dev); 1392 1393 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1394 struct timeval *tvblank, unsigned flags); 1395 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1396 int crtc, int *max_error, 1397 struct timeval *vblank_time, 1398 unsigned flags, 1399 const struct drm_crtc *refcrtc, 1400 const struct drm_display_mode *mode); 1401 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc, 1402 const struct drm_display_mode *mode); 1403 1404 /* Modesetting support */ 1405 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1406 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1407 extern int drm_modeset_ctl(struct drm_device *dev, void *data, 1408 struct drm_file *file_priv); 1409 1410 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1411 int drm_device_is_agp(struct drm_device *dev); 1412 int drm_device_is_pcie(struct drm_device *dev); 1413 drm_agp_head_t *drm_agp_init(void); 1414 int drm_agp_acquire(struct drm_device *dev); 1415 int drm_agp_release(struct drm_device *dev); 1416 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 1417 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1418 void *drm_agp_allocate_memory(size_t pages, u32 type); 1419 int drm_agp_free_memory(void *handle); 1420 int drm_agp_bind_memory(void *handle, off_t start); 1421 int drm_agp_unbind_memory(void *handle); 1422 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1423 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1424 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1425 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1426 1427 /* Scatter Gather Support (drm_scatter.h) */ 1428 extern void drm_legacy_sg_cleanup(struct drm_device *dev); 1429 extern int drm_sg_alloc(struct drm_device *dev, void *data, 1430 struct drm_file *file_priv); 1431 1432 /* Scatter Gather Support (drm_scatter.c) */ 1433 void drm_sg_cleanup(drm_sg_mem_t *entry); 1434 1435 /* sysctl support (drm_sysctl.h) */ 1436 extern int drm_sysctl_init(struct drm_device *dev); 1437 extern int drm_sysctl_cleanup(struct drm_device *dev); 1438 1439 /* ATI PCIGART support (ati_pcigart.c) */ 1440 int drm_ati_pcigart_init(struct drm_device *dev, 1441 struct drm_ati_pcigart_info *gart_info); 1442 int drm_ati_pcigart_cleanup(struct drm_device *dev, 1443 struct drm_ati_pcigart_info *gart_info); 1444 1445 /* Cache management (drm_memory.c) */ 1446 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1447 1448 /* Locking IOCTL support (drm_drv.c) */ 1449 int drm_lock(struct drm_device *dev, void *data, 1450 struct drm_file *file_priv); 1451 int drm_unlock(struct drm_device *dev, void *data, 1452 struct drm_file *file_priv); 1453 int drm_version(struct drm_device *dev, void *data, 1454 struct drm_file *file_priv); 1455 int drm_setversion(struct drm_device *dev, void *data, 1456 struct drm_file *file_priv); 1457 1458 /* Misc. IOCTL support (drm_ioctl.c) */ 1459 int drm_irq_by_busid(struct drm_device *dev, void *data, 1460 struct drm_file *file_priv); 1461 int drm_getunique(struct drm_device *dev, void *data, 1462 struct drm_file *file_priv); 1463 int drm_setunique(struct drm_device *dev, void *data, 1464 struct drm_file *file_priv); 1465 int drm_getmap(struct drm_device *dev, void *data, 1466 struct drm_file *file_priv); 1467 int drm_getclient(struct drm_device *dev, void *data, 1468 struct drm_file *file_priv); 1469 int drm_getstats(struct drm_device *dev, void *data, 1470 struct drm_file *file_priv); 1471 int drm_getcap(struct drm_device *dev, void *data, 1472 struct drm_file *file_priv); 1473 extern int drm_setclientcap(struct drm_device *dev, void *data, 1474 struct drm_file *file_priv); 1475 int drm_noop(struct drm_device *dev, void *data, 1476 struct drm_file *file_priv); 1477 1478 /* Context IOCTL support (drm_context.c) */ 1479 int drm_resctx(struct drm_device *dev, void *data, 1480 struct drm_file *file_priv); 1481 int drm_addctx(struct drm_device *dev, void *data, 1482 struct drm_file *file_priv); 1483 int drm_getctx(struct drm_device *dev, void *data, 1484 struct drm_file *file_priv); 1485 int drm_switchctx(struct drm_device *dev, void *data, 1486 struct drm_file *file_priv); 1487 int drm_newctx(struct drm_device *dev, void *data, 1488 struct drm_file *file_priv); 1489 int drm_rmctx(struct drm_device *dev, void *data, 1490 struct drm_file *file_priv); 1491 int drm_setsareactx(struct drm_device *dev, void *data, 1492 struct drm_file *file_priv); 1493 int drm_getsareactx(struct drm_device *dev, void *data, 1494 struct drm_file *file_priv); 1495 1496 /* Authentication IOCTL support (drm_auth.c) */ 1497 int drm_getmagic(struct drm_device *dev, void *data, 1498 struct drm_file *file_priv); 1499 int drm_authmagic(struct drm_device *dev, void *data, 1500 struct drm_file *file_priv); 1501 1502 /* Cache management (drm_cache.c) */ 1503 void drm_clflush_virt_range(void *addr, unsigned long length); 1504 1505 /* Buffer management support (drm_bufs.c) */ 1506 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1507 struct drm_file *file_priv); 1508 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1509 struct drm_file *file_priv); 1510 int drm_addbufs(struct drm_device *dev, void *data, 1511 struct drm_file *file_priv); 1512 int drm_infobufs(struct drm_device *dev, void *data, 1513 struct drm_file *file_priv); 1514 int drm_markbufs(struct drm_device *dev, void *data, 1515 struct drm_file *file_priv); 1516 int drm_freebufs(struct drm_device *dev, void *data, 1517 struct drm_file *file_priv); 1518 int drm_mapbufs(struct drm_device *dev, void *data, 1519 struct drm_file *file_priv); 1520 1521 /* DMA support (drm_dma.c) */ 1522 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1523 1524 /* IRQ support (drm_irq.c) */ 1525 int drm_control(struct drm_device *dev, void *data, 1526 struct drm_file *file_priv); 1527 1528 /* AGP/GART support (drm_agpsupport.c) */ 1529 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1530 struct drm_file *file_priv); 1531 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1532 struct drm_file *file_priv); 1533 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1534 struct drm_file *file_priv); 1535 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1536 struct drm_file *file_priv); 1537 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1538 struct drm_file *file_priv); 1539 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1540 struct drm_file *file_priv); 1541 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1542 struct drm_file *file_priv); 1543 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1544 struct drm_file *file_priv); 1545 1546 /* Stub support (drm_stub.h) */ 1547 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1548 struct drm_file *file_priv); 1549 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1550 struct drm_file *file_priv); 1551 1552 /* Scatter Gather Support (drm_scatter.c) */ 1553 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1554 struct drm_file *file_priv); 1555 int drm_sg_free(struct drm_device *dev, void *data, 1556 struct drm_file *file_priv); 1557 1558 /* consistent PCI memory functions (drm_pci.c) */ 1559 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1560 size_t align); 1561 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1562 1563 /* sysfs support (drm_sysfs.c) */ 1564 struct drm_sysfs_class; 1565 extern struct class *drm_sysfs_create(struct module *owner, char *name); 1566 extern void drm_sysfs_destroy(void); 1567 extern int drm_sysfs_device_add(struct drm_minor *minor); 1568 extern void drm_sysfs_hotplug_event(struct drm_device *dev); 1569 extern void drm_sysfs_device_remove(struct drm_minor *minor); 1570 extern int drm_sysfs_connector_add(struct drm_connector *connector); 1571 extern void drm_sysfs_connector_remove(struct drm_connector *connector); 1572 1573 /* Graphics Execution Manager library functions (drm_gem.c) */ 1574 int drm_gem_init(struct drm_device *dev); 1575 void drm_gem_destroy(struct drm_device *dev); 1576 void drm_gem_object_release(struct drm_gem_object *obj); 1577 void drm_gem_object_free(struct kref *kref); 1578 int drm_gem_object_init(struct drm_device *dev, 1579 struct drm_gem_object *obj, size_t size); 1580 void drm_gem_private_object_init(struct drm_device *dev, 1581 struct drm_gem_object *obj, size_t size); 1582 void drm_gem_vm_open(struct vm_area_struct *vma); 1583 void drm_gem_vm_close(struct vm_area_struct *vma); 1584 int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size, 1585 struct vm_area_struct *vma); 1586 int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); 1587 1588 int i915_gem_pager_ctor(void *handle, vm_ooffset_t size, vm_prot_t prot, 1589 vm_ooffset_t foff, struct ucred *cred, u_short *color); 1590 void i915_gem_pager_dtor(void * handle); 1591 1592 #include <drm/drm_global.h> 1593 1594 static inline void 1595 drm_gem_object_reference(struct drm_gem_object *obj) 1596 { 1597 kref_get(&obj->refcount); 1598 } 1599 1600 static inline void 1601 drm_gem_object_unreference(struct drm_gem_object *obj) 1602 { 1603 if (obj != NULL) 1604 kref_put(&obj->refcount, drm_gem_object_free); 1605 } 1606 1607 static inline void 1608 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1609 { 1610 if (obj != NULL) { 1611 struct drm_device *dev = obj->dev; 1612 DRM_LOCK(dev); 1613 kref_put(&obj->refcount, drm_gem_object_free); 1614 DRM_UNLOCK(dev); 1615 } 1616 } 1617 1618 int drm_gem_handle_create_tail(struct drm_file *file_priv, 1619 struct drm_gem_object *obj, 1620 u32 *handlep); 1621 int drm_gem_handle_create(struct drm_file *file_priv, 1622 struct drm_gem_object *obj, 1623 u32 *handlep); 1624 int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1625 1626 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1627 struct drm_file *filp, 1628 u32 handle); 1629 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1630 struct drm_file *file_priv); 1631 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1632 struct drm_file *file_priv); 1633 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1634 struct drm_file *file_priv); 1635 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1636 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1637 1638 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1639 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1640 int drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size); 1641 1642 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1643 vm_size_t size, struct vm_object **obj_res, int nprot); 1644 void drm_gem_pager_dtr(void *obj); 1645 1646 struct ttm_bo_device; 1647 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1648 vm_size_t size, struct vm_object **obj_res, int nprot); 1649 struct ttm_buffer_object; 1650 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1651 1652 void drm_device_lock_mtx(struct drm_device *dev); 1653 void drm_device_unlock_mtx(struct drm_device *dev); 1654 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1655 const char *msg, int timeout); 1656 void drm_device_assert_mtx_locked(struct drm_device *dev); 1657 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1658 1659 void drm_device_lock_struct(struct drm_device *dev); 1660 void drm_device_unlock_struct(struct drm_device *dev); 1661 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1662 const char *msg, int timeout); 1663 void drm_device_assert_struct_locked(struct drm_device *dev); 1664 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1665 1666 void drm_compat_locking_init(struct drm_device *dev); 1667 void drm_sleep_locking_init(struct drm_device *dev); 1668 1669 /* XXX glue logic, should be done in drm_pci_init(), pending drm update */ 1670 void drm_init_pdev(struct device *dev, struct pci_dev **pdev); 1671 void drm_fini_pdev(struct pci_dev **pdev); 1672 1673 /* Inline replacements for drm_alloc and friends */ 1674 static __inline__ void * 1675 drm_alloc(size_t size, struct malloc_type *area) 1676 { 1677 return kmalloc(size, area, M_WAITOK | M_NULLOK); 1678 } 1679 1680 static __inline__ void * 1681 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1682 { 1683 return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO); 1684 } 1685 1686 static __inline__ void 1687 drm_free(void *pt, struct malloc_type *area) 1688 { 1689 kfree(pt); 1690 } 1691 1692 static __inline__ void 1693 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1694 { 1695 map->handle = drm_ioremap_wc(dev, map); 1696 } 1697 static __inline__ void 1698 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1699 { 1700 map->handle = drm_ioremap(dev, map); 1701 } 1702 static __inline__ void 1703 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1704 { 1705 if ( map->handle && map->size ) 1706 drm_ioremapfree(map); 1707 } 1708 1709 static __inline__ struct drm_local_map * 1710 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1711 { 1712 struct drm_map_list *_entry; 1713 1714 list_for_each_entry(_entry, &dev->maplist, head) { 1715 if (offset == (unsigned long)_entry->map->handle) 1716 return _entry->map; 1717 } 1718 return NULL; 1719 } 1720 1721 static __inline__ void drm_core_dropmap(struct drm_map *map) 1722 { 1723 } 1724 1725 #include <drm/drm_mem_util.h> 1726 1727 /* FreeBSD compatibility macros */ 1728 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1729 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1730 1731 #define DRM_PCIE_SPEED_25 1 1732 #define DRM_PCIE_SPEED_50 2 1733 #define DRM_PCIE_SPEED_80 4 1734 1735 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1736 1737 /* XXX bad */ 1738 #define drm_can_sleep() (HZ & 1) 1739 1740 #endif /* __KERNEL__ */ 1741 #endif /* _DRM_P_H_ */ 1742