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 #if defined(__i386__) || defined(__amd64__) 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/err.h> 97 #include <linux/idr.h> 98 #include <linux/pci.h> 99 #include <linux/jiffies.h> 100 #include <linux/kernel.h> 101 #include <linux/kref.h> 102 #include <linux/list.h> 103 #include <linux/mm.h> 104 #include <linux/moduleparam.h> 105 #include <linux/mutex.h> 106 #include <linux/slab.h> 107 #include <linux/scatterlist.h> 108 #include <linux/timer.h> 109 #include <asm/io.h> 110 #include <linux/types.h> 111 #include <linux/wait.h> 112 #include <linux/workqueue.h> 113 114 #include <asm/uaccess.h> 115 116 #include <drm/drm_vma_manager.h> 117 118 struct drm_file; 119 struct drm_device; 120 121 #include <drm/drm_os_linux.h> 122 #include <drm/drm_hashtab.h> 123 #include <drm/drm_mm.h> 124 125 #define DRM_UT_CORE 0x01 126 #define DRM_UT_DRIVER 0x02 127 #define DRM_UT_KMS 0x04 128 #define DRM_UT_PRIME 0x08 129 130 #include "opt_drm.h" 131 #ifdef DRM_DEBUG 132 # if DRM_DEBUG>1 133 # define DRM_DEBUG_DEFAULT_ON 2 134 # else 135 # define DRM_DEBUG_DEFAULT_ON 1 136 # endif 137 #undef DRM_DEBUG 138 #endif /* DRM_DEBUG */ 139 140 #define DRM_DEBUGBITS_DEBUG 0x1 141 #define DRM_DEBUGBITS_KMS 0x2 142 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 143 #define DRM_DEBUGBITS_VERBOSE 0x8 144 145 #undef DRM_LINUX 146 #define DRM_LINUX 0 147 148 /***********************************************************************/ 149 /** \name DRM template customization defaults */ 150 /*@{*/ 151 152 /* driver capabilities and requirements mask */ 153 #define DRIVER_USE_AGP 0x1 154 #define DRIVER_REQUIRE_AGP 0x2 155 #define DRIVER_PCI_DMA 0x8 156 #define DRIVER_SG 0x10 157 #define DRIVER_HAVE_DMA 0x20 158 #define DRIVER_HAVE_IRQ 0x40 159 #define DRIVER_IRQ_SHARED 0x80 160 #define DRIVER_IRQ_VBL 0x100 161 #define DRIVER_DMA_QUEUE 0x200 162 #define DRIVER_FB_DMA 0x400 163 #define DRIVER_IRQ_VBL2 0x800 164 #define DRIVER_GEM 0x1000 165 #define DRIVER_MODESET 0x2000 166 #define DRIVER_PRIME 0x4000 167 168 /***********************************************************************/ 169 /** \name Begin the DRM... */ 170 /*@{*/ 171 172 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ 173 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 174 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 175 176 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 177 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 178 #define DRM_GEM_MAX_IDX 0x3fffff 179 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 180 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 181 #define DRM_GEM_MAPPING_MAPOFF(o) \ 182 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 183 184 SYSCTL_DECL(_hw_drm); 185 186 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 187 188 /***********************************************************************/ 189 /** \name Internal types and structures */ 190 /*@{*/ 191 192 #define DRM_ARRAY_SIZE(x) NELEM(x) 193 #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 194 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 195 196 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 197 198 #define __OS_HAS_AGP 1 199 200 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 201 #define DRM_DEV_UID 0 202 #define DRM_DEV_GID 0 203 204 #define DRM_WAKEUP(w) wakeup((void *)w) 205 #define DRM_WAKEUP_INT(w) wakeup(w) 206 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 207 208 #define DRM_CURPROC curthread 209 #define DRM_STRUCTPROC struct thread 210 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1) 211 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE) 212 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE) 213 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 214 (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout))) 215 #if defined(INVARIANTS) 216 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0); 217 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0); 218 #else 219 #define DRM_LOCK_ASSERT(d) 220 #define DRM_UNLOCK_ASSERT(d) 221 #endif 222 223 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 224 225 #define DRM_IRQ_ARGS void *arg 226 typedef void irqreturn_t; 227 #define IRQ_HANDLED /* nothing */ 228 #define IRQ_NONE /* nothing */ 229 230 enum { 231 DRM_IS_NOT_AGP, 232 DRM_IS_AGP, 233 DRM_MIGHT_BE_AGP 234 }; 235 #define DRM_AGP_MEM struct agp_memory_info 236 237 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 238 239 /* DRM_SUSER returns true if the user is superuser */ 240 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 241 #define DRM_AGP_FIND_DEVICE() agp_find_device() 242 #define DRM_MTRR_WC MDF_WRITECOMBINE 243 244 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 245 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 246 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 247 */ 248 #define DRM_READMEMORYBARRIER() cpu_lfence() 249 #define DRM_WRITEMEMORYBARRIER() cpu_sfence() 250 #define DRM_MEMORYBARRIER() cpu_mfence() 251 252 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 253 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 254 255 #define DRM_COPY_TO_USER(user, kern, size) \ 256 copyout(kern, user, size) 257 #define DRM_COPY_FROM_USER(kern, user, size) \ 258 copyin(user, kern, size) 259 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 260 copyin(arg2, arg1, arg3) 261 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 262 copyout(arg2, arg1, arg3) 263 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 264 ((val) = fuword32(uaddr), 0) 265 266 #define drm_can_sleep() (DRM_HZ & 1) 267 268 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 269 (_map) = (_dev)->context_sareas[_ctx]; \ 270 } while(0) 271 272 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 273 do { \ 274 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 275 dev->lock.file_priv != file_priv) { \ 276 DRM_ERROR("%s called without lock held\n", \ 277 __FUNCTION__); \ 278 return EINVAL; \ 279 } \ 280 } while (0) 281 282 /* Returns -errno to shared code */ 283 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 284 for ( ret = 0 ; !ret && !(condition) ; ) { \ 285 DRM_UNLOCK(dev); \ 286 lwkt_serialize_enter(&dev->irq_lock); \ 287 if (!(condition)) { \ 288 tsleep_interlock(&(queue), PCATCH); \ 289 lwkt_serialize_exit(&dev->irq_lock); \ 290 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 291 "drmwtq", (timeout)); \ 292 } else { \ 293 lwkt_serialize_exit(&dev->irq_lock); \ 294 } \ 295 DRM_LOCK(dev); \ 296 } 297 298 __inline static void 299 vm_page_unhold_pages(vm_page_t *ma, int count) 300 { 301 int i; 302 303 for (i = 0; i < count; i++) 304 vm_page_unhold(ma[i]); 305 } 306 307 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 308 vm_memattr_t memattr); 309 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 310 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 311 312 /***********************************************************************/ 313 /** \name Macros to make printk easier */ 314 /*@{*/ 315 316 /** 317 * Error output. 318 * 319 * \param fmt printf() like format string. 320 * \param arg arguments 321 */ 322 #define DRM_ERROR(fmt, ...) \ 323 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 324 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 325 326 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 327 328 #define DRM_INFO_ONCE(fmt, ...) \ 329 printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) 330 331 #define DRM_DEBUG(fmt, ...) do { \ 332 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 333 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 334 __func__ , ##__VA_ARGS__); \ 335 } while (0) 336 337 #define DRM_DEBUG_VERBOSE(fmt, ...) do { \ 338 if ((drm_debug & DRM_DEBUGBITS_VERBOSE) != 0) \ 339 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 340 __func__ , ##__VA_ARGS__); \ 341 } while (0) 342 343 #define DRM_DEBUG_KMS(fmt, ...) do { \ 344 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 345 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 346 __func__ , ##__VA_ARGS__); \ 347 } while (0) 348 349 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 350 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 351 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 352 __func__ , ##__VA_ARGS__); \ 353 } while (0) 354 355 #define DRM_LOG_KMS(fmt, ...) do { \ 356 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \ 357 __func__ , ##__VA_ARGS__); \ 358 } while (0) 359 360 #define dev_dbg(dev, fmt, ...) do { \ 361 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 362 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 363 } \ 364 } while (0) 365 366 typedef struct drm_pci_id_list 367 { 368 int vendor; 369 int device; 370 long driver_private; 371 char *name; 372 } drm_pci_id_list_t; 373 374 struct drm_msi_blacklist_entry 375 { 376 int vendor; 377 int device; 378 }; 379 380 /** 381 * Ioctl function type. 382 * 383 * \param inode device inode. 384 * \param file_priv DRM file private pointer. 385 * \param cmd command. 386 * \param arg argument. 387 */ 388 typedef int drm_ioctl_t(struct drm_device *dev, void *data, 389 struct drm_file *file_priv); 390 391 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, 392 unsigned long arg); 393 394 #define DRM_IOCTL_NR(n) ((n) & 0xff) 395 396 #define DRM_AUTH 0x1 397 #define DRM_MASTER 0x2 398 #define DRM_ROOT_ONLY 0x4 399 #define DRM_CONTROL_ALLOW 0x8 400 #define DRM_UNLOCKED 0x10 401 402 struct drm_ioctl_desc { 403 unsigned long cmd; 404 int (*func)(struct drm_device *dev, void *data, 405 struct drm_file *file_priv); 406 int flags; 407 unsigned int cmd_drv; 408 }; 409 410 /** 411 * Creates a driver or general drm_ioctl_desc array entry for the given 412 * ioctl, for use by drm_ioctl(). 413 */ 414 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 415 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 416 417 typedef struct drm_magic_entry { 418 struct list_head head; 419 struct drm_hash_item hash_item; 420 struct drm_file *priv; 421 struct drm_magic_entry *next; 422 } drm_magic_entry_t; 423 424 typedef struct drm_magic_head { 425 struct drm_magic_entry *head; 426 struct drm_magic_entry *tail; 427 } drm_magic_head_t; 428 429 typedef struct drm_buf { 430 int idx; /**< Index into master buflist */ 431 int total; /**< Buffer size */ 432 int order; /**< log-base-2(total) */ 433 int used; /**< Amount of buffer in use (for DMA) */ 434 unsigned long offset; /**< Byte offset (used internally) */ 435 void *address; /**< Address of buffer */ 436 unsigned long bus_address; /**< Bus address of buffer */ 437 struct drm_buf *next; /**< Kernel-only: used for free list */ 438 __volatile__ int waiting; /**< On kernel DMA queue */ 439 __volatile__ int pending; /**< On hardware DMA queue */ 440 struct drm_file *file_priv; /**< Private of holding file descr */ 441 int context; /**< Kernel queue for this buffer */ 442 int while_locked; /**< Dispatch this buffer while locked */ 443 enum { 444 DRM_LIST_NONE = 0, 445 DRM_LIST_FREE = 1, 446 DRM_LIST_WAIT = 2, 447 DRM_LIST_PEND = 3, 448 DRM_LIST_PRIO = 4, 449 DRM_LIST_RECLAIM = 5 450 } list; /**< Which list we're on */ 451 452 int dev_priv_size; /**< Size of buffer private storage */ 453 void *dev_private; /**< Per-buffer private storage */ 454 } drm_buf_t; 455 456 struct drm_freelist { 457 int initialized; /* Freelist in use */ 458 atomic_t count; /* Number of free buffers */ 459 drm_buf_t *next; /* End pointer */ 460 461 wait_queue_head_t waiting; /**< Processes waiting on free bufs */ 462 int low_mark; /* Low water mark */ 463 int high_mark; /* High water mark */ 464 }; 465 466 typedef struct drm_dma_handle { 467 void *vaddr; 468 size_t size; 469 bus_addr_t busaddr; 470 bus_dma_tag_t tag; 471 bus_dmamap_t map; 472 } drm_dma_handle_t; 473 474 typedef struct drm_buf_entry { 475 int buf_size; 476 int buf_count; 477 drm_buf_t *buflist; 478 int seg_count; 479 drm_dma_handle_t **seglist; 480 int page_order; 481 482 struct drm_freelist freelist; 483 } drm_buf_entry_t; 484 485 /* Event queued up for userspace to read */ 486 struct drm_pending_event { 487 struct drm_event *event; 488 struct list_head link; 489 struct drm_file *file_priv; 490 pid_t pid; /* pid of requester, no guarantee it's valid by the time 491 we deliver the event, for tracing only */ 492 void (*destroy)(struct drm_pending_event *event); 493 }; 494 495 /* initial implementaton using a linked list - todo hashtab */ 496 struct drm_prime_file_private { 497 struct list_head head; 498 #ifdef DUMBBELL_WIP 499 struct mutex lock; 500 #endif /* DUMBBELL_WIP */ 501 }; 502 503 /** File private data */ 504 struct drm_file { 505 int authenticated; 506 struct drm_device *dev; 507 int master; 508 pid_t pid; 509 uid_t uid; 510 drm_magic_t magic; 511 unsigned long ioctl_count; 512 struct list_head lhead; 513 struct kqinfo dkq; 514 515 /** Mapping of mm object handles to object pointers. */ 516 struct idr object_idr; 517 /** Lock for synchronization of access to object_idr. */ 518 struct lock table_lock; 519 520 void *driver_priv; 521 522 int is_master; 523 struct drm_master *masterp; 524 525 /* true when the client has asked us to expose stereo 3D mode flags */ 526 bool stereo_allowed; 527 528 /** 529 * fbs - List of framebuffers associated with this file. 530 * 531 * Protected by fbs_lock. Note that the fbs list holds a reference on 532 * the fb object to prevent it from untimely disappearing. 533 */ 534 struct list_head fbs; 535 struct lock fbs_lock; 536 537 wait_queue_head_t event_wait; 538 struct list_head event_list; 539 int event_space; 540 541 struct drm_prime_file_private prime; 542 }; 543 544 /** 545 * Lock data. 546 */ 547 struct drm_lock_data { 548 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 549 /** Private of lock holder's file (NULL=kernel) */ 550 struct drm_file *file_priv; 551 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 552 unsigned long lock_time; /**< Time of last lock in jiffies */ 553 }; 554 555 /* This structure, in the struct drm_device, is always initialized while the 556 * device 557 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 558 * when set marks that no further bufs may be allocated until device teardown 559 * occurs (when the last open of the device has closed). The high/low 560 * watermarks of bufs are only touched by the X Server, and thus not 561 * concurrently accessed, so no locking is needed. 562 */ 563 typedef struct drm_device_dma { 564 565 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 566 int buf_count; /**< total number of buffers */ 567 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 568 int seg_count; 569 int page_count; /**< number of pages */ 570 unsigned long *pagelist; /**< page list */ 571 unsigned long byte_count; 572 enum { 573 _DRM_DMA_USE_AGP = 0x01, 574 _DRM_DMA_USE_SG = 0x02, 575 _DRM_DMA_USE_FB = 0x04, 576 _DRM_DMA_USE_PCI_RO = 0x08 577 } flags; 578 579 } drm_device_dma_t; 580 581 typedef struct drm_agp_mem { 582 void *handle; 583 unsigned long bound; /* address */ 584 int pages; 585 struct drm_agp_mem *prev; 586 struct drm_agp_mem *next; 587 } drm_agp_mem_t; 588 589 typedef struct drm_agp_head { 590 device_t agpdev; 591 struct agp_info agp_info; 592 const char *chipset; 593 drm_agp_mem_t *memory; 594 unsigned long mode; 595 int enabled; 596 int acquired; 597 unsigned long base; 598 int agp_mtrr; 599 int cant_use_aperture; 600 unsigned long page_mask; 601 } drm_agp_head_t; 602 603 typedef struct drm_sg_mem { 604 vm_offset_t vaddr; 605 vm_paddr_t *busaddr; 606 vm_pindex_t pages; 607 } drm_sg_mem_t; 608 609 /** 610 * Kernel side of a mapping 611 */ 612 struct drm_local_map { 613 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 614 unsigned long size; /**< Requested physical size (bytes) */ 615 enum drm_map_type type; /**< Type of memory to map */ 616 enum drm_map_flags flags; /**< Flags */ 617 void *handle; /**< User-space: "Handle" to pass to mmap() */ 618 /**< Kernel-space: kernel-virtual address */ 619 int mtrr; /**< MTRR slot used */ 620 }; 621 622 typedef struct drm_local_map drm_local_map_t; 623 624 /** 625 * Mappings list 626 */ 627 struct drm_map_list { 628 struct list_head head; /**< list head */ 629 struct drm_hash_item hash; 630 struct drm_local_map *map; /**< mapping */ 631 uint64_t user_token; 632 struct drm_master *master; 633 struct drm_mm_node *file_offset_node; /**< fake offset */ 634 }; 635 636 /** 637 * Context handle list 638 */ 639 struct drm_ctx_list { 640 struct list_head head; /**< list head */ 641 drm_context_t handle; /**< context handle */ 642 struct drm_file *tag; /**< associated fd private data */ 643 }; 644 645 struct drm_vblank_info { 646 wait_queue_head_t queue; /* vblank wait queue */ 647 atomic_t count; /* number of VBLANK interrupts */ 648 /* (driver must alloc the right number of counters) */ 649 atomic_t refcount; /* number of users of vblank interrupts */ 650 u32 last; /* protected by dev->vbl_lock, used */ 651 /* for wraparound handling */ 652 int enabled; /* so we don't call enable more than */ 653 /* once per disable */ 654 int inmodeset; /* Display driver is setting mode */ 655 }; 656 657 /* location of GART table */ 658 #define DRM_ATI_GART_MAIN 1 659 #define DRM_ATI_GART_FB 2 660 661 #define DRM_ATI_GART_PCI 1 662 #define DRM_ATI_GART_PCIE 2 663 #define DRM_ATI_GART_IGP 3 664 665 struct drm_ati_pcigart_info { 666 int gart_table_location; 667 int gart_reg_if; 668 void *addr; 669 dma_addr_t bus_addr; 670 dma_addr_t table_mask; 671 dma_addr_t member_mask; 672 struct drm_dma_handle *table_handle; 673 drm_local_map_t mapping; 674 int table_size; 675 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 676 }; 677 678 /** 679 * GEM specific mm private for tracking GEM objects 680 */ 681 struct drm_gem_mm { 682 struct drm_vma_offset_manager vma_manager; 683 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */ 684 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 685 struct unrhdr *idxunr; 686 }; 687 688 struct drm_gem_object { 689 /** Reference count of this object */ 690 struct kref refcount; 691 692 /** Handle count of this object. Each handle also holds a reference */ 693 atomic_t handle_count; /* number of handles on this object */ 694 695 /** Related drm device */ 696 struct drm_device *dev; 697 698 /** File representing the shmem storage: filp in Linux parlance */ 699 vm_object_t vm_obj; 700 701 /* Mapping info for this object */ 702 struct drm_vma_offset_node vma_node; 703 bool on_map; 704 struct drm_hash_item map_list; 705 706 /** 707 * Size of the object, in bytes. Immutable over the object's 708 * lifetime. 709 */ 710 size_t size; 711 712 /** 713 * Global name for this object, starts at 1. 0 means unnamed. 714 * Access is covered by the object_name_lock in the related drm_device 715 */ 716 int name; 717 718 /** 719 * Memory domains. These monitor which caches contain read/write data 720 * related to the object. When transitioning from one set of domains 721 * to another, the driver is called to ensure that caches are suitably 722 * flushed and invalidated 723 */ 724 uint32_t read_domains; 725 uint32_t write_domain; 726 727 /** 728 * While validating an exec operation, the 729 * new read/write domain values are computed here. 730 * They will be transferred to the above values 731 * at the point that any cache flushing occurs 732 */ 733 uint32_t pending_read_domains; 734 uint32_t pending_write_domain; 735 736 #ifdef DUMBBELL_WIP 737 /* dma buf exported from this GEM object */ 738 struct dma_buf *export_dma_buf; 739 740 /* dma buf attachment backing this object */ 741 struct dma_buf_attachment *import_attach; 742 #endif /* DUMBBELL_WIP */ 743 }; 744 745 #include "drm_crtc.h" 746 747 /* per-master structure */ 748 struct drm_master { 749 750 struct kref refcount; /* refcount for this master */ 751 752 struct list_head head; /**< each minor contains a list of masters */ 753 struct drm_minor *minor; /**< link back to minor we are a master for */ 754 755 char *unique; /**< Unique identifier: e.g., busid */ 756 int unique_len; /**< Length of unique field */ 757 int unique_size; /**< amount allocated */ 758 759 int blocked; /**< Blocked due to VC switch? */ 760 761 /** \name Authentication */ 762 /*@{ */ 763 struct drm_open_hash magiclist; 764 struct list_head magicfree; 765 /*@} */ 766 767 struct drm_lock_data lock; /**< Information on hardware lock */ 768 769 void *driver_priv; /**< Private structure for driver to use */ 770 }; 771 772 /* Size of ringbuffer for vblank timestamps. Just double-buffer 773 * in initial implementation. 774 */ 775 #define DRM_VBLANKTIME_RBSIZE 2 776 777 /* Flags and return codes for get_vblank_timestamp() driver function. */ 778 #define DRM_CALLED_FROM_VBLIRQ 1 779 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 780 #define DRM_VBLANKTIME_INVBL (1 << 1) 781 782 /* get_scanout_position() return flags */ 783 #define DRM_SCANOUTPOS_VALID (1 << 0) 784 #define DRM_SCANOUTPOS_INVBL (1 << 1) 785 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 786 787 #ifndef DMA_BIT_MASK 788 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 789 #endif 790 791 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 792 793 struct drm_driver { 794 int (*load)(struct drm_device *, unsigned long flags); 795 int (*use_msi)(struct drm_device *, unsigned long flags); 796 int (*firstopen)(struct drm_device *); 797 int (*open)(struct drm_device *, struct drm_file *); 798 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 799 void (*postclose)(struct drm_device *, struct drm_file *); 800 void (*lastclose)(struct drm_device *); 801 int (*unload)(struct drm_device *); 802 void (*reclaim_buffers_locked)(struct drm_device *, 803 struct drm_file *file_priv); 804 int (*dma_ioctl)(struct drm_device *dev, void *data, 805 struct drm_file *file_priv); 806 void (*dma_ready)(struct drm_device *); 807 int (*dma_quiescent)(struct drm_device *); 808 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 809 enum drm_lock_flags flags); 810 int (*dma_flush_unblock)(struct drm_device *, int context, 811 enum drm_lock_flags flags); 812 int (*context_ctor)(struct drm_device *dev, int context); 813 int (*context_dtor)(struct drm_device *dev, int context); 814 int (*kernel_context_switch)(struct drm_device *dev, int old, 815 int new); 816 int (*kernel_context_switch_unlock)(struct drm_device *dev); 817 void (*irq_preinstall)(struct drm_device *dev); 818 int (*irq_postinstall)(struct drm_device *dev); 819 void (*irq_uninstall)(struct drm_device *dev); 820 void (*irq_handler)(DRM_IRQ_ARGS); 821 822 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 823 int (*enable_vblank)(struct drm_device *dev, int crtc); 824 void (*disable_vblank)(struct drm_device *dev, int crtc); 825 826 /** 827 * Called by vblank timestamping code. 828 * 829 * Return the current display scanout position from a crtc, and an 830 * optional accurate ktime_get timestamp of when position was measured. 831 * 832 * \param dev DRM device. 833 * \param crtc Id of the crtc to query. 834 * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). 835 * \param *vpos Target location for current vertical scanout position. 836 * \param *hpos Target location for current horizontal scanout position. 837 * \param *stime Target location for timestamp taken immediately before 838 * scanout position query. Can be NULL to skip timestamp. 839 * \param *etime Target location for timestamp taken immediately after 840 * scanout position query. Can be NULL to skip timestamp. 841 * 842 * Returns vpos as a positive number while in active scanout area. 843 * Returns vpos as a negative number inside vblank, counting the number 844 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 845 * until start of active scanout / end of vblank." 846 * 847 * \return Flags, or'ed together as follows: 848 * 849 * DRM_SCANOUTPOS_VALID = Query successful. 850 * DRM_SCANOUTPOS_INVBL = Inside vblank. 851 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 852 * this flag means that returned position may be offset by a constant 853 * but unknown small number of scanlines wrt. real scanout position. 854 * 855 */ 856 int (*get_scanout_position) (struct drm_device *dev, int crtc, 857 unsigned int flags, 858 int *vpos, int *hpos, ktime_t *stime, 859 ktime_t *etime); 860 861 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 862 int *max_error, struct timeval *vblank_time, 863 unsigned flags); 864 865 void (*gem_free_object)(struct drm_gem_object *obj); 866 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 867 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 868 869 struct cdev_pager_ops *gem_pager_ops; 870 871 int (*dumb_create)(struct drm_file *file_priv, 872 struct drm_device *dev, struct drm_mode_create_dumb *args); 873 int (*dumb_map_offset)(struct drm_file *file_priv, 874 struct drm_device *dev, uint32_t handle, uint64_t *offset); 875 int (*dumb_destroy)(struct drm_file *file_priv, 876 struct drm_device *dev, uint32_t handle); 877 878 int (*sysctl_init)(struct drm_device *dev, 879 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 880 void (*sysctl_cleanup)(struct drm_device *dev); 881 882 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 883 884 /** 885 * Called by \c drm_device_is_agp. Typically used to determine if a 886 * card is really attached to AGP or not. 887 * 888 * \param dev DRM device handle 889 * 890 * \returns 891 * One of three values is returned depending on whether or not the 892 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 893 * (return of 1), or may or may not be AGP (return of 2). 894 */ 895 int (*device_is_agp) (struct drm_device * dev); 896 897 int buf_priv_size; 898 899 int major; 900 int minor; 901 int patchlevel; 902 const char *name; /* Simple driver name */ 903 const char *desc; /* Longer driver name */ 904 const char *date; /* Date of last major changes. */ 905 906 u32 driver_features; 907 int dev_priv_size; 908 struct drm_ioctl_desc *ioctls; 909 int num_ioctls; 910 }; 911 912 /** 913 * DRM minor structure. This structure represents a drm minor number. 914 */ 915 struct drm_minor { 916 int index; /**< Minor device number */ 917 int type; /**< Control or render */ 918 device_t kdev; /**< OS device */ 919 struct drm_device *dev; 920 921 struct drm_master *master; /* currently active master for this node */ 922 struct list_head master_list; 923 struct drm_mode_group mode_group; 924 }; 925 926 /* mode specified on the command line */ 927 struct drm_cmdline_mode { 928 bool specified; 929 bool refresh_specified; 930 bool bpp_specified; 931 int xres, yres; 932 int bpp; 933 int refresh; 934 bool rb; 935 bool interlace; 936 bool cvt; 937 bool margins; 938 enum drm_connector_force force; 939 }; 940 941 942 struct drm_pending_vblank_event { 943 struct drm_pending_event base; 944 int pipe; 945 struct drm_event_vblank event; 946 }; 947 948 struct drm_sysctl_info { 949 struct sysctl_ctx_list ctx; 950 char name[2]; 951 }; 952 953 /* Length for the array of resource pointers for drm_get_resource_*. */ 954 #define DRM_MAX_PCI_RESOURCE 6 955 956 struct drm_vblank_crtc { 957 wait_queue_head_t queue; /**< VBLANK wait queue */ 958 struct timeval time[DRM_VBLANKTIME_RBSIZE]; /**< timestamp of current count */ 959 atomic_t count; /**< number of VBLANK interrupts */ 960 atomic_t refcount; /* number of users of vblank interruptsper crtc */ 961 u32 last; /* protected by dev->vbl_lock, used */ 962 /* for wraparound handling */ 963 u32 last_wait; /* Last vblank seqno waited per CRTC */ 964 unsigned int inmodeset; /* Display driver is setting mode */ 965 bool enabled; /* so we don't call enable more than 966 once per disable */ 967 }; 968 969 /** 970 * DRM device structure. This structure represent a complete card that 971 * may contain multiple heads. 972 */ 973 struct drm_device { 974 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 975 976 uint16_t pci_subdevice; /* PCI subsystem device id */ 977 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 978 979 char *unique; /* Unique identifier: e.g., busid */ 980 int unique_len; /* Length of unique field */ 981 struct cdev *devnode; /* Device number for mknod */ 982 int if_version; /* Highest interface version set */ 983 984 int flags; /* Flags to open(2) */ 985 986 /* Locks */ 987 struct spinlock dma_lock; /* protects dev->dma */ 988 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 989 struct lock dev_lock; /* protects everything else */ 990 991 /** \name Locks */ 992 /*@{ */ 993 struct lock struct_mutex; /**< For others */ 994 /*@} */ 995 996 /** \name Usage Counters */ 997 /*@{ */ 998 int open_count; /* Outstanding files open */ 999 int buf_use; /* Buffers in use -- cannot alloc */ 1000 /*@} */ 1001 1002 1003 /** \name Performance counters */ 1004 /*@{ */ 1005 unsigned long counters; 1006 enum drm_stat_type types[15]; 1007 atomic_t counts[15]; 1008 /*@} */ 1009 1010 /* Authentication */ 1011 struct drm_open_hash magiclist; /**< magic hash table */ 1012 struct list_head magicfree; 1013 1014 struct list_head filelist; 1015 1016 /** \name Memory management */ 1017 /*@{ */ 1018 struct list_head maplist; /**< Linked list of regions */ 1019 int map_count; /**< Number of mappable regions */ 1020 struct drm_open_hash map_hash; /**< User token hash table for maps */ 1021 1022 /** \name Context handle management */ 1023 /*@{ */ 1024 struct list_head ctxlist; /**< Linked list of context handles */ 1025 int ctx_count; /**< Number of context handles */ 1026 struct lock ctxlist_mutex; /**< For ctxlist */ 1027 1028 struct idr ctx_idr; 1029 1030 /*@} */ 1031 1032 struct drm_lock_data lock; /* Information on hardware lock */ 1033 1034 /* DMA queues (contexts) */ 1035 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 1036 1037 int irq; /* Interrupt used by board */ 1038 int msi_enabled; /* MSI enabled */ 1039 int irqrid; /* Interrupt used by board */ 1040 struct resource *irqr; /* Resource for interrupt used by board */ 1041 void *irqh; /* Handle from bus_setup_intr */ 1042 1043 /* Storage of resource pointers for drm_get_resource_* */ 1044 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 1045 int pcirid[DRM_MAX_PCI_RESOURCE]; 1046 1047 int pci_domain; 1048 int pci_bus; 1049 int pci_slot; 1050 int pci_func; 1051 1052 /** \name Context support */ 1053 /*@{ */ 1054 int irq_enabled; /**< True if irq handler is enabled */ 1055 __volatile__ long context_flag; /**< Context swapping flag */ 1056 __volatile__ long interrupt_flag; /**< Interruption handler flag */ 1057 __volatile__ long dma_flag; /**< DMA dispatch flag */ 1058 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ 1059 int last_checked; /**< Last context checked for DMA */ 1060 int last_context; /**< Last current context */ 1061 unsigned long last_switch; /**< jiffies at last context switch */ 1062 /*@} */ 1063 1064 /** \name VBLANK IRQ support */ 1065 /*@{ */ 1066 1067 /* 1068 * At load time, disabling the vblank interrupt won't be allowed since 1069 * old clients may not call the modeset ioctl and therefore misbehave. 1070 * Once the modeset ioctl *has* been called though, we can safely 1071 * disable them when unused. 1072 */ 1073 bool vblank_disable_allowed; 1074 1075 /* array of size num_crtcs */ 1076 struct drm_vblank_crtc *vblank; 1077 1078 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 1079 struct lock vbl_lock; 1080 struct timer_list vblank_disable_timer; 1081 1082 u32 max_vblank_count; /**< size of vblank counter register */ 1083 1084 /** 1085 * List of events 1086 */ 1087 struct list_head vblank_event_list; 1088 struct lock event_lock; 1089 1090 /*@} */ 1091 1092 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 1093 1094 /* Sysctl support */ 1095 struct drm_sysctl_info *sysctl; 1096 int sysctl_node_idx; 1097 1098 1099 drm_sg_mem_t *sg; /* Scatter gather memory */ 1100 unsigned int num_crtcs; /**< Number of CRTCs on this device */ 1101 1102 unsigned long *ctx_bitmap; 1103 void *dev_private; 1104 1105 void *drm_ttm_bdev; 1106 1107 /*@} */ 1108 1109 struct drm_agp_head *agp; /**< AGP data */ 1110 1111 struct device *dev; /**< Device structure */ 1112 struct pci_dev *pdev; /**< PCI device structure */ 1113 int pci_vendor; /**< PCI vendor id */ 1114 int pci_device; /**< PCI device id */ 1115 1116 struct drm_driver *driver; 1117 struct drm_local_map *agp_buffer_map; 1118 unsigned int agp_buffer_token; 1119 struct drm_minor *control; /**< Control node for card */ 1120 struct drm_minor *primary; /**< render type primary screen head */ 1121 1122 struct drm_mode_config mode_config; /**< Current mode config */ 1123 1124 /** \name GEM information */ 1125 /*@{ */ 1126 struct lock object_name_lock; 1127 struct idr object_name_idr; 1128 /*@} */ 1129 void *mm_private; 1130 1131 void *sysctl_private; 1132 char busid_str[128]; 1133 int modesetting; 1134 1135 int switch_power_state; 1136 1137 atomic_t unplugged; /* device has been unplugged or gone away */ 1138 }; 1139 1140 #define DRM_SWITCH_POWER_ON 0 1141 #define DRM_SWITCH_POWER_OFF 1 1142 #define DRM_SWITCH_POWER_CHANGING 2 1143 1144 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1145 int feature) 1146 { 1147 return ((dev->driver->driver_features & feature) ? 1 : 0); 1148 } 1149 1150 static inline int drm_device_is_unplugged(struct drm_device *dev) 1151 { 1152 int ret = atomic_read(&dev->unplugged); 1153 smp_rmb(); 1154 return ret; 1155 } 1156 1157 #if __OS_HAS_AGP 1158 static inline int drm_core_has_AGP(struct drm_device *dev) 1159 { 1160 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1161 } 1162 #else 1163 #define drm_core_has_AGP(dev) (0) 1164 #endif 1165 1166 enum dmi_field { 1167 DMI_NONE, 1168 DMI_BIOS_VENDOR, 1169 DMI_BIOS_VERSION, 1170 DMI_BIOS_DATE, 1171 DMI_SYS_VENDOR, 1172 DMI_PRODUCT_NAME, 1173 DMI_PRODUCT_VERSION, 1174 DMI_PRODUCT_SERIAL, 1175 DMI_PRODUCT_UUID, 1176 DMI_BOARD_VENDOR, 1177 DMI_BOARD_NAME, 1178 DMI_BOARD_VERSION, 1179 DMI_BOARD_SERIAL, 1180 DMI_BOARD_ASSET_TAG, 1181 DMI_CHASSIS_VENDOR, 1182 DMI_CHASSIS_TYPE, 1183 DMI_CHASSIS_VERSION, 1184 DMI_CHASSIS_SERIAL, 1185 DMI_CHASSIS_ASSET_TAG, 1186 DMI_STRING_MAX, 1187 }; 1188 1189 struct dmi_strmatch { 1190 unsigned char slot; 1191 char substr[79]; 1192 }; 1193 1194 struct dmi_system_id { 1195 int (*callback)(const struct dmi_system_id *); 1196 const char *ident; 1197 struct dmi_strmatch matches[4]; 1198 }; 1199 #define DMI_MATCH(a, b) {(a), (b)} 1200 bool dmi_check_system(const struct dmi_system_id *); 1201 1202 extern int drm_notyet_flag; 1203 extern int drm_debug; 1204 1205 extern unsigned int drm_vblank_offdelay; 1206 extern unsigned int drm_timestamp_precision; 1207 extern unsigned int drm_timestamp_monotonic; 1208 1209 /* Device setup support (drm_drv.c) */ 1210 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1211 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1212 int drm_create_cdevs(device_t kdev); 1213 1214 d_ioctl_t drm_ioctl; 1215 extern int drm_lastclose(struct drm_device *dev); 1216 1217 /* Device support (drm_fops.h) */ 1218 extern struct lock drm_global_mutex; 1219 d_open_t drm_open; 1220 d_close_t drm_close; 1221 d_read_t drm_read; 1222 d_kqfilter_t drm_kqfilter; 1223 int drm_release(device_t kdev); 1224 1225 d_mmap_t drm_mmap; 1226 d_mmap_single_t drm_mmap_single; 1227 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1228 1229 void drm_cdevpriv_dtor(void *cd); 1230 1231 void drm_event_wakeup(struct drm_pending_event *e); 1232 1233 int drm_add_busid_modesetting(struct drm_device *dev, 1234 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1235 1236 /* File operations helpers (drm_fops.c) */ 1237 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1238 DRM_STRUCTPROC *p, 1239 struct drm_device *dev, 1240 struct file *fp); 1241 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1242 DRM_STRUCTPROC *p); 1243 1244 #ifdef DUMBBELL_WIP 1245 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1246 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1247 int *prime_fd); 1248 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1249 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1250 1251 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1252 struct drm_file *file_priv); 1253 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1254 struct drm_file *file_priv); 1255 1256 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1257 dma_addr_t *addrs, int max_pages); 1258 #endif /* DUMBBELL_WIP */ 1259 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1260 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1261 1262 int drm_gem_dumb_destroy(struct drm_file *file, 1263 struct drm_device *dev, 1264 uint32_t handle); 1265 1266 #ifdef DUMBBELL_WIP 1267 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1268 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1269 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1270 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1271 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1272 1273 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1274 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1275 struct drm_gem_object **obj); 1276 #endif /* DUMBBELL_WIP */ 1277 1278 /* Memory management support (drm_memory.h) */ 1279 #include <drm/drm_memory.h> 1280 void drm_mem_init(void); 1281 void drm_mem_uninit(void); 1282 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1283 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1284 void drm_ioremapfree(drm_local_map_t *map); 1285 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1286 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1287 1288 int drm_ctxbitmap_init(struct drm_device *dev); 1289 void drm_ctxbitmap_cleanup(struct drm_device *dev); 1290 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1291 1292 /* Locking IOCTL support (drm_lock.c) */ 1293 int drm_lock_take(struct drm_lock_data *lock_data, 1294 unsigned int context); 1295 int drm_lock_transfer(struct drm_lock_data *lock_data, 1296 unsigned int context); 1297 int drm_lock_free(struct drm_lock_data *lock_data, 1298 unsigned int context); 1299 1300 /* 1301 * These are exported to drivers so that they can implement fencing using 1302 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1303 */ 1304 1305 unsigned long drm_get_resource_start(struct drm_device *dev, 1306 unsigned int resource); 1307 unsigned long drm_get_resource_len(struct drm_device *dev, 1308 unsigned int resource); 1309 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1310 int drm_order(unsigned long size); 1311 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1312 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1313 extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1314 unsigned int size, enum drm_map_type type, 1315 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1316 1317 /* DMA support (drm_dma.c) */ 1318 int drm_dma_setup(struct drm_device *dev); 1319 void drm_dma_takedown(struct drm_device *dev); 1320 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1321 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1322 #define drm_core_reclaim_buffers drm_reclaim_buffers 1323 1324 /* IRQ support (drm_irq.h) */ 1325 int drm_irq_install(struct drm_device *dev); 1326 int drm_irq_uninstall(struct drm_device *dev); 1327 void drm_driver_irq_preinstall(struct drm_device *dev); 1328 void drm_driver_irq_postinstall(struct drm_device *dev); 1329 void drm_driver_irq_uninstall(struct drm_device *dev); 1330 1331 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1332 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1333 struct drm_file *filp); 1334 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1335 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1336 struct timeval *vblanktime); 1337 extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1338 struct drm_pending_vblank_event *e); 1339 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1340 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1341 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1342 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1343 extern void drm_vblank_cleanup(struct drm_device *dev); 1344 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1345 struct timeval *tvblank, unsigned flags); 1346 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1347 int crtc, int *max_error, 1348 struct timeval *vblank_time, 1349 unsigned flags, 1350 const struct drm_crtc *refcrtc, 1351 const struct drm_display_mode *mode); 1352 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc, 1353 const struct drm_display_mode *mode); 1354 1355 /* Modesetting support */ 1356 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1357 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1358 extern int drm_modeset_ctl(struct drm_device *dev, void *data, 1359 struct drm_file *file_priv); 1360 1361 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1362 int drm_device_is_agp(struct drm_device *dev); 1363 int drm_device_is_pcie(struct drm_device *dev); 1364 drm_agp_head_t *drm_agp_init(void); 1365 int drm_agp_acquire(struct drm_device *dev); 1366 int drm_agp_release(struct drm_device *dev); 1367 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 1368 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1369 void *drm_agp_allocate_memory(size_t pages, u32 type); 1370 int drm_agp_free_memory(void *handle); 1371 int drm_agp_bind_memory(void *handle, off_t start); 1372 int drm_agp_unbind_memory(void *handle); 1373 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1374 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1375 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1376 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1377 1378 /* Scatter Gather Support (drm_scatter.c) */ 1379 void drm_sg_cleanup(drm_sg_mem_t *entry); 1380 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1381 1382 /* sysctl support (drm_sysctl.h) */ 1383 extern int drm_sysctl_init(struct drm_device *dev); 1384 extern int drm_sysctl_cleanup(struct drm_device *dev); 1385 1386 /* ATI PCIGART support (ati_pcigart.c) */ 1387 int drm_ati_pcigart_init(struct drm_device *dev, 1388 struct drm_ati_pcigart_info *gart_info); 1389 int drm_ati_pcigart_cleanup(struct drm_device *dev, 1390 struct drm_ati_pcigart_info *gart_info); 1391 1392 /* Cache management (drm_memory.c) */ 1393 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1394 1395 /* Locking IOCTL support (drm_drv.c) */ 1396 int drm_lock(struct drm_device *dev, void *data, 1397 struct drm_file *file_priv); 1398 int drm_unlock(struct drm_device *dev, void *data, 1399 struct drm_file *file_priv); 1400 int drm_version(struct drm_device *dev, void *data, 1401 struct drm_file *file_priv); 1402 int drm_setversion(struct drm_device *dev, void *data, 1403 struct drm_file *file_priv); 1404 1405 /* Misc. IOCTL support (drm_ioctl.c) */ 1406 int drm_irq_by_busid(struct drm_device *dev, void *data, 1407 struct drm_file *file_priv); 1408 int drm_getunique(struct drm_device *dev, void *data, 1409 struct drm_file *file_priv); 1410 int drm_setunique(struct drm_device *dev, void *data, 1411 struct drm_file *file_priv); 1412 int drm_getmap(struct drm_device *dev, void *data, 1413 struct drm_file *file_priv); 1414 int drm_getclient(struct drm_device *dev, void *data, 1415 struct drm_file *file_priv); 1416 int drm_getstats(struct drm_device *dev, void *data, 1417 struct drm_file *file_priv); 1418 int drm_getcap(struct drm_device *dev, void *data, 1419 struct drm_file *file_priv); 1420 extern int drm_setclientcap(struct drm_device *dev, void *data, 1421 struct drm_file *file_priv); 1422 int drm_noop(struct drm_device *dev, void *data, 1423 struct drm_file *file_priv); 1424 1425 /* Context IOCTL support (drm_context.c) */ 1426 int drm_resctx(struct drm_device *dev, void *data, 1427 struct drm_file *file_priv); 1428 int drm_addctx(struct drm_device *dev, void *data, 1429 struct drm_file *file_priv); 1430 int drm_getctx(struct drm_device *dev, void *data, 1431 struct drm_file *file_priv); 1432 int drm_switchctx(struct drm_device *dev, void *data, 1433 struct drm_file *file_priv); 1434 int drm_newctx(struct drm_device *dev, void *data, 1435 struct drm_file *file_priv); 1436 int drm_rmctx(struct drm_device *dev, void *data, 1437 struct drm_file *file_priv); 1438 int drm_setsareactx(struct drm_device *dev, void *data, 1439 struct drm_file *file_priv); 1440 int drm_getsareactx(struct drm_device *dev, void *data, 1441 struct drm_file *file_priv); 1442 1443 /* Authentication IOCTL support (drm_auth.c) */ 1444 int drm_getmagic(struct drm_device *dev, void *data, 1445 struct drm_file *file_priv); 1446 int drm_authmagic(struct drm_device *dev, void *data, 1447 struct drm_file *file_priv); 1448 1449 /* Cache management (drm_cache.c) */ 1450 void drm_clflush_virt_range(char *addr, unsigned long length); 1451 1452 /* Buffer management support (drm_bufs.c) */ 1453 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1454 struct drm_file *file_priv); 1455 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1456 struct drm_file *file_priv); 1457 int drm_addbufs(struct drm_device *dev, void *data, 1458 struct drm_file *file_priv); 1459 int drm_infobufs(struct drm_device *dev, void *data, 1460 struct drm_file *file_priv); 1461 int drm_markbufs(struct drm_device *dev, void *data, 1462 struct drm_file *file_priv); 1463 int drm_freebufs(struct drm_device *dev, void *data, 1464 struct drm_file *file_priv); 1465 int drm_mapbufs(struct drm_device *dev, void *data, 1466 struct drm_file *file_priv); 1467 1468 /* DMA support (drm_dma.c) */ 1469 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1470 1471 /* IRQ support (drm_irq.c) */ 1472 int drm_control(struct drm_device *dev, void *data, 1473 struct drm_file *file_priv); 1474 1475 /* AGP/GART support (drm_agpsupport.c) */ 1476 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1477 struct drm_file *file_priv); 1478 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1479 struct drm_file *file_priv); 1480 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1481 struct drm_file *file_priv); 1482 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1483 struct drm_file *file_priv); 1484 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1485 struct drm_file *file_priv); 1486 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1487 struct drm_file *file_priv); 1488 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1489 struct drm_file *file_priv); 1490 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1491 struct drm_file *file_priv); 1492 1493 /* Stub support (drm_stub.h) */ 1494 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1495 struct drm_file *file_priv); 1496 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1497 struct drm_file *file_priv); 1498 1499 /* Scatter Gather Support (drm_scatter.c) */ 1500 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1501 struct drm_file *file_priv); 1502 int drm_sg_free(struct drm_device *dev, void *data, 1503 struct drm_file *file_priv); 1504 1505 /* consistent PCI memory functions (drm_pci.c) */ 1506 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1507 size_t align); 1508 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1509 1510 /* sysfs support (drm_sysfs.c) */ 1511 struct drm_sysfs_class; 1512 extern struct class *drm_sysfs_create(struct module *owner, char *name); 1513 extern void drm_sysfs_destroy(void); 1514 extern int drm_sysfs_device_add(struct drm_minor *minor); 1515 extern void drm_sysfs_hotplug_event(struct drm_device *dev); 1516 extern void drm_sysfs_device_remove(struct drm_minor *minor); 1517 extern int drm_sysfs_connector_add(struct drm_connector *connector); 1518 extern void drm_sysfs_connector_remove(struct drm_connector *connector); 1519 1520 /* Graphics Execution Manager library functions (drm_gem.c) */ 1521 int drm_gem_init(struct drm_device *dev); 1522 void drm_gem_destroy(struct drm_device *dev); 1523 void drm_gem_object_release(struct drm_gem_object *obj); 1524 void drm_gem_object_free(struct kref *kref); 1525 int drm_gem_object_init(struct drm_device *dev, 1526 struct drm_gem_object *obj, size_t size); 1527 void drm_gem_private_object_init(struct drm_device *dev, 1528 struct drm_gem_object *obj, size_t size); 1529 1530 int i915_gem_pager_ctor(void *handle, vm_ooffset_t size, vm_prot_t prot, 1531 vm_ooffset_t foff, struct ucred *cred, u_short *color); 1532 void i915_gem_pager_dtor(void * handle); 1533 1534 #include <drm/drm_global.h> 1535 1536 static inline void 1537 drm_gem_object_reference(struct drm_gem_object *obj) 1538 { 1539 kref_get(&obj->refcount); 1540 } 1541 1542 static inline void 1543 drm_gem_object_unreference(struct drm_gem_object *obj) 1544 { 1545 if (obj != NULL) 1546 kref_put(&obj->refcount, drm_gem_object_free); 1547 } 1548 1549 static inline void 1550 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1551 { 1552 if (obj != NULL) { 1553 struct drm_device *dev = obj->dev; 1554 DRM_LOCK(dev); 1555 kref_put(&obj->refcount, drm_gem_object_free); 1556 DRM_UNLOCK(dev); 1557 } 1558 } 1559 1560 int drm_gem_handle_create(struct drm_file *file_priv, 1561 struct drm_gem_object *obj, 1562 u32 *handlep); 1563 int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1564 1565 static inline void 1566 drm_gem_object_handle_reference(struct drm_gem_object *obj) 1567 { 1568 drm_gem_object_reference(obj); 1569 atomic_inc(&obj->handle_count); 1570 } 1571 1572 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1573 struct drm_file *filp, 1574 u32 handle); 1575 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1576 struct drm_file *file_priv); 1577 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1578 struct drm_file *file_priv); 1579 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1580 struct drm_file *file_priv); 1581 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1582 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1583 1584 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1585 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1586 int drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size); 1587 1588 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1589 vm_size_t size, struct vm_object **obj_res, int nprot); 1590 void drm_gem_pager_dtr(void *obj); 1591 1592 struct ttm_bo_device; 1593 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1594 vm_size_t size, struct vm_object **obj_res, int nprot); 1595 struct ttm_buffer_object; 1596 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1597 1598 void drm_device_lock_mtx(struct drm_device *dev); 1599 void drm_device_unlock_mtx(struct drm_device *dev); 1600 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1601 const char *msg, int timeout); 1602 void drm_device_assert_mtx_locked(struct drm_device *dev); 1603 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1604 1605 void drm_device_lock_struct(struct drm_device *dev); 1606 void drm_device_unlock_struct(struct drm_device *dev); 1607 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1608 const char *msg, int timeout); 1609 void drm_device_assert_struct_locked(struct drm_device *dev); 1610 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1611 1612 void drm_compat_locking_init(struct drm_device *dev); 1613 void drm_sleep_locking_init(struct drm_device *dev); 1614 1615 /* drm_modes.c */ 1616 bool drm_mode_parse_command_line_for_connector(const char *mode_option, 1617 struct drm_connector *connector, struct drm_cmdline_mode *mode); 1618 struct drm_display_mode *drm_mode_create_from_cmdline_mode( 1619 struct drm_device *dev, struct drm_cmdline_mode *cmd); 1620 1621 /* Inline replacements for drm_alloc and friends */ 1622 static __inline__ void * 1623 drm_alloc(size_t size, struct malloc_type *area) 1624 { 1625 return kmalloc(size, area, M_WAITOK | M_NULLOK); 1626 } 1627 1628 static __inline__ void * 1629 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1630 { 1631 return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO); 1632 } 1633 1634 static __inline__ void 1635 drm_free(void *pt, struct malloc_type *area) 1636 { 1637 kfree(pt); 1638 } 1639 1640 static __inline__ void 1641 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1642 { 1643 map->handle = drm_ioremap_wc(dev, map); 1644 } 1645 static __inline__ void 1646 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1647 { 1648 map->handle = drm_ioremap(dev, map); 1649 } 1650 static __inline__ void 1651 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1652 { 1653 if ( map->handle && map->size ) 1654 drm_ioremapfree(map); 1655 } 1656 1657 static __inline__ struct drm_local_map * 1658 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1659 { 1660 struct drm_map_list *_entry; 1661 1662 list_for_each_entry(_entry, &dev->maplist, head) { 1663 if (offset == (unsigned long)_entry->map->handle) 1664 return _entry->map; 1665 } 1666 return NULL; 1667 } 1668 1669 static __inline__ void drm_core_dropmap(struct drm_map *map) 1670 { 1671 } 1672 1673 #include <drm/drm_mem_util.h> 1674 1675 /* FreeBSD compatibility macros */ 1676 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1677 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1678 1679 #define DRM_PCIE_SPEED_25 1 1680 #define DRM_PCIE_SPEED_50 2 1681 #define DRM_PCIE_SPEED_80 4 1682 1683 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1684 1685 #define drm_can_sleep() (DRM_HZ & 1) 1686 1687 #endif /* __KERNEL__ */ 1688 #endif /* _DRM_P_H_ */ 1689