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 #include <bus/pci/pcivar.h> 89 #include <bus/pci/pcireg.h> 90 91 MALLOC_DECLARE(M_DRM); 92 93 #include <uapi_drm/drm.h> 94 #include <uapi_drm/drm_sarea.h> 95 96 #include <linux/atomic.h> 97 #include <linux/bug.h> 98 #include <linux/err.h> 99 #include <linux/idr.h> 100 #include <linux/pci.h> 101 #include <linux/jiffies.h> 102 #include <linux/kernel.h> 103 #include <linux/kref.h> 104 #include <linux/list.h> 105 #include <linux/mm.h> 106 #include <linux/moduleparam.h> 107 #include <linux/mutex.h> 108 #include <linux/slab.h> 109 #include <linux/scatterlist.h> 110 #include <linux/timer.h> 111 #include <asm/io.h> 112 #include <linux/types.h> 113 #include <linux/wait.h> 114 #include <linux/workqueue.h> 115 116 #include <asm/uaccess.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 #undef DRM_DEBUG 133 #define DRM_DEBUG_DEFAULT_ON 1 134 #endif /* DRM_DEBUG */ 135 136 #define DRM_DEBUGBITS_DEBUG 0x1 137 #define DRM_DEBUGBITS_KMS 0x2 138 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 139 140 #undef DRM_LINUX 141 #define DRM_LINUX 0 142 143 /***********************************************************************/ 144 /** \name DRM template customization defaults */ 145 /*@{*/ 146 147 /* driver capabilities and requirements mask */ 148 #define DRIVER_USE_AGP 0x1 149 #define DRIVER_REQUIRE_AGP 0x2 150 #define DRIVER_USE_MTRR 0x4 151 #define DRIVER_PCI_DMA 0x8 152 #define DRIVER_SG 0x10 153 #define DRIVER_HAVE_DMA 0x20 154 #define DRIVER_HAVE_IRQ 0x40 155 #define DRIVER_IRQ_SHARED 0x80 156 #define DRIVER_IRQ_VBL 0x100 157 #define DRIVER_DMA_QUEUE 0x200 158 #define DRIVER_FB_DMA 0x400 159 #define DRIVER_IRQ_VBL2 0x800 160 #define DRIVER_GEM 0x1000 161 #define DRIVER_MODESET 0x2000 162 #define DRIVER_PRIME 0x4000 163 #define DRIVER_LOCKLESS_IRQ 0x8000 164 165 /***********************************************************************/ 166 /** \name Begin the DRM... */ 167 /*@{*/ 168 169 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 170 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 171 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 172 173 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 174 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 175 #define DRM_GEM_MAX_IDX 0x3fffff 176 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 177 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 178 #define DRM_GEM_MAPPING_MAPOFF(o) \ 179 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 180 181 SYSCTL_DECL(_hw_drm); 182 183 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 184 185 /***********************************************************************/ 186 /** \name Internal types and structures */ 187 /*@{*/ 188 189 #define DRM_ARRAY_SIZE(x) NELEM(x) 190 #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 191 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 192 193 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 194 195 #define __OS_HAS_AGP 1 196 197 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 198 #define DRM_DEV_UID 0 199 #define DRM_DEV_GID 0 200 201 #define DRM_WAKEUP(w) wakeup((void *)w) 202 #define DRM_WAKEUP_INT(w) wakeup(w) 203 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 204 205 #define DRM_CURPROC curthread 206 #define DRM_STRUCTPROC struct thread 207 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1) 208 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE) 209 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE) 210 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 211 (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout))) 212 #if defined(INVARIANTS) 213 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0); 214 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0); 215 #else 216 #define DRM_LOCK_ASSERT(d) 217 #define DRM_UNLOCK_ASSERT(d) 218 #endif 219 220 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 221 222 #define DRM_IRQ_ARGS void *arg 223 typedef void irqreturn_t; 224 #define IRQ_HANDLED /* nothing */ 225 #define IRQ_NONE /* nothing */ 226 227 enum { 228 DRM_IS_NOT_AGP, 229 DRM_IS_AGP, 230 DRM_MIGHT_BE_AGP 231 }; 232 #define DRM_AGP_MEM struct agp_memory_info 233 234 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 235 236 /* DRM_SUSER returns true if the user is superuser */ 237 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 238 #define DRM_AGP_FIND_DEVICE() agp_find_device() 239 #define DRM_MTRR_WC MDF_WRITECOMBINE 240 241 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 242 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 243 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 244 */ 245 #define DRM_READMEMORYBARRIER() cpu_lfence() 246 #define DRM_WRITEMEMORYBARRIER() cpu_sfence() 247 #define DRM_MEMORYBARRIER() cpu_mfence() 248 249 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 250 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 251 252 #define DRM_COPY_TO_USER(user, kern, size) \ 253 copyout(kern, user, size) 254 #define DRM_COPY_FROM_USER(kern, user, size) \ 255 copyin(user, kern, size) 256 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 257 copyin(arg2, arg1, arg3) 258 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 259 copyout(arg2, arg1, arg3) 260 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 261 ((val) = fuword32(uaddr), 0) 262 263 #define drm_can_sleep() (DRM_HZ & 1) 264 265 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 266 (_map) = (_dev)->context_sareas[_ctx]; \ 267 } while(0) 268 269 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 270 do { \ 271 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 272 dev->lock.file_priv != file_priv) { \ 273 DRM_ERROR("%s called without lock held\n", \ 274 __FUNCTION__); \ 275 return EINVAL; \ 276 } \ 277 } while (0) 278 279 /* Returns -errno to shared code */ 280 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 281 for ( ret = 0 ; !ret && !(condition) ; ) { \ 282 DRM_UNLOCK(dev); \ 283 lwkt_serialize_enter(&dev->irq_lock); \ 284 if (!(condition)) { \ 285 tsleep_interlock(&(queue), PCATCH); \ 286 lwkt_serialize_exit(&dev->irq_lock); \ 287 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 288 "drmwtq", (timeout)); \ 289 } else { \ 290 lwkt_serialize_exit(&dev->irq_lock); \ 291 } \ 292 DRM_LOCK(dev); \ 293 } 294 295 __inline static void 296 vm_page_unhold_pages(vm_page_t *ma, int count) 297 { 298 int i; 299 300 for (i = 0; i < count; i++) 301 vm_page_unhold(ma[i]); 302 } 303 304 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 305 vm_memattr_t memattr); 306 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 307 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 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_DEBUG(fmt, ...) do { \ 316 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 317 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 318 __func__ , ##__VA_ARGS__); \ 319 } while (0) 320 321 #define DRM_DEBUG_KMS(fmt, ...) do { \ 322 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 323 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 324 __func__ , ##__VA_ARGS__); \ 325 } while (0) 326 327 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 328 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 329 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 330 __func__ , ##__VA_ARGS__); \ 331 } while (0) 332 333 #define DRM_LOG_KMS(fmt, ...) do { \ 334 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \ 335 __func__ , ##__VA_ARGS__); \ 336 } while (0) 337 338 #define dev_dbg(dev, fmt, ...) do { \ 339 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 340 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 341 } \ 342 } while (0) 343 344 typedef struct drm_pci_id_list 345 { 346 int vendor; 347 int device; 348 long driver_private; 349 char *name; 350 } drm_pci_id_list_t; 351 352 struct drm_msi_blacklist_entry 353 { 354 int vendor; 355 int device; 356 }; 357 358 #define DRM_IOCTL_NR(n) ((n) & 0xff) 359 360 #define DRM_AUTH 0x1 361 #define DRM_MASTER 0x2 362 #define DRM_ROOT_ONLY 0x4 363 #define DRM_CONTROL_ALLOW 0x8 364 #define DRM_UNLOCKED 0x10 365 366 typedef struct drm_ioctl_desc { 367 unsigned long cmd; 368 int (*func)(struct drm_device *dev, void *data, 369 struct drm_file *file_priv); 370 int flags; 371 unsigned int cmd_drv; 372 } drm_ioctl_desc_t; 373 374 /** 375 * Creates a driver or general drm_ioctl_desc array entry for the given 376 * ioctl, for use by drm_ioctl(). 377 */ 378 #define DRM_IOCTL_DEF(ioctl, func, flags) \ 379 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 380 381 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 382 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 383 384 typedef struct drm_magic_entry { 385 drm_magic_t magic; 386 struct drm_file *priv; 387 struct drm_magic_entry *next; 388 } drm_magic_entry_t; 389 390 typedef struct drm_magic_head { 391 struct drm_magic_entry *head; 392 struct drm_magic_entry *tail; 393 } drm_magic_head_t; 394 395 typedef struct drm_buf { 396 int idx; /**< Index into master buflist */ 397 int total; /**< Buffer size */ 398 int order; /**< log-base-2(total) */ 399 int used; /**< Amount of buffer in use (for DMA) */ 400 unsigned long offset; /**< Byte offset (used internally) */ 401 void *address; /**< Address of buffer */ 402 unsigned long bus_address; /**< Bus address of buffer */ 403 struct drm_buf *next; /**< Kernel-only: used for free list */ 404 __volatile__ int waiting; /**< On kernel DMA queue */ 405 __volatile__ int pending; /**< On hardware DMA queue */ 406 struct drm_file *file_priv; /**< Private of holding file descr */ 407 int context; /**< Kernel queue for this buffer */ 408 int while_locked; /**< Dispatch this buffer while locked */ 409 enum { 410 DRM_LIST_NONE = 0, 411 DRM_LIST_FREE = 1, 412 DRM_LIST_WAIT = 2, 413 DRM_LIST_PEND = 3, 414 DRM_LIST_PRIO = 4, 415 DRM_LIST_RECLAIM = 5 416 } list; /**< Which list we're on */ 417 418 int dev_priv_size; /**< Size of buffer private storage */ 419 void *dev_private; /**< Per-buffer private storage */ 420 } drm_buf_t; 421 422 struct drm_freelist { 423 int initialized; /* Freelist in use */ 424 atomic_t count; /* Number of free buffers */ 425 drm_buf_t *next; /* End pointer */ 426 427 wait_queue_head_t waiting; /**< Processes waiting on free bufs */ 428 int low_mark; /* Low water mark */ 429 int high_mark; /* High water mark */ 430 }; 431 432 typedef struct drm_dma_handle { 433 void *vaddr; 434 bus_addr_t busaddr; 435 bus_dma_tag_t tag; 436 bus_dmamap_t map; 437 } drm_dma_handle_t; 438 439 typedef struct drm_buf_entry { 440 int buf_size; 441 int buf_count; 442 drm_buf_t *buflist; 443 int seg_count; 444 drm_dma_handle_t **seglist; 445 int page_order; 446 447 struct drm_freelist freelist; 448 } drm_buf_entry_t; 449 450 /* Event queued up for userspace to read */ 451 struct drm_pending_event { 452 struct drm_event *event; 453 struct list_head link; 454 struct drm_file *file_priv; 455 pid_t pid; /* pid of requester, no guarantee it's valid by the time 456 we deliver the event, for tracing only */ 457 void (*destroy)(struct drm_pending_event *event); 458 }; 459 460 /* initial implementaton using a linked list - todo hashtab */ 461 struct drm_prime_file_private { 462 struct list_head head; 463 #ifdef DUMBBELL_WIP 464 struct mutex lock; 465 #endif /* DUMBBELL_WIP */ 466 }; 467 468 /** File private data */ 469 struct drm_file { 470 int authenticated; 471 struct drm_device *dev; 472 int master; 473 pid_t pid; 474 uid_t uid; 475 drm_magic_t magic; 476 unsigned long ioctl_count; 477 struct list_head lhead; 478 struct kqinfo dkq; 479 480 /** Mapping of mm object handles to object pointers. */ 481 struct idr object_idr; 482 /** Lock for synchronization of access to object_idr. */ 483 struct lock table_lock; 484 485 void *driver_priv; 486 487 int is_master; 488 struct drm_master *masterp; 489 490 /** 491 * fbs - List of framebuffers associated with this file. 492 * 493 * Protected by fbs_lock. Note that the fbs list holds a reference on 494 * the fb object to prevent it from untimely disappearing. 495 */ 496 struct list_head fbs; 497 struct lock fbs_lock; 498 499 wait_queue_head_t event_wait; 500 struct list_head event_list; 501 int event_space; 502 503 struct drm_prime_file_private prime; 504 }; 505 506 /** 507 * Lock data. 508 */ 509 struct drm_lock_data { 510 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 511 /** Private of lock holder's file (NULL=kernel) */ 512 struct drm_file *file_priv; 513 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 514 unsigned long lock_time; /**< Time of last lock in jiffies */ 515 }; 516 517 /* This structure, in the struct drm_device, is always initialized while the 518 * device 519 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 520 * when set marks that no further bufs may be allocated until device teardown 521 * occurs (when the last open of the device has closed). The high/low 522 * watermarks of bufs are only touched by the X Server, and thus not 523 * concurrently accessed, so no locking is needed. 524 */ 525 typedef struct drm_device_dma { 526 527 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 528 int buf_count; /**< total number of buffers */ 529 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 530 int seg_count; 531 int page_count; /**< number of pages */ 532 unsigned long *pagelist; /**< page list */ 533 unsigned long byte_count; 534 enum { 535 _DRM_DMA_USE_AGP = 0x01, 536 _DRM_DMA_USE_SG = 0x02, 537 _DRM_DMA_USE_FB = 0x04, 538 _DRM_DMA_USE_PCI_RO = 0x08 539 } flags; 540 541 } drm_device_dma_t; 542 543 typedef struct drm_agp_mem { 544 void *handle; 545 unsigned long bound; /* address */ 546 int pages; 547 struct drm_agp_mem *prev; 548 struct drm_agp_mem *next; 549 } drm_agp_mem_t; 550 551 typedef struct drm_agp_head { 552 device_t agpdev; 553 struct agp_info agp_info; 554 const char *chipset; 555 drm_agp_mem_t *memory; 556 unsigned long mode; 557 int enabled; 558 int acquired; 559 unsigned long base; 560 int agp_mtrr; 561 int cant_use_aperture; 562 unsigned long page_mask; 563 } drm_agp_head_t; 564 565 typedef struct drm_sg_mem { 566 vm_offset_t vaddr; 567 vm_paddr_t *busaddr; 568 vm_pindex_t pages; 569 } drm_sg_mem_t; 570 571 /** 572 * Kernel side of a mapping 573 */ 574 struct drm_local_map { 575 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 576 unsigned long size; /**< Requested physical size (bytes) */ 577 enum drm_map_type type; /**< Type of memory to map */ 578 enum drm_map_flags flags; /**< Flags */ 579 void *handle; /**< User-space: "Handle" to pass to mmap() */ 580 /**< Kernel-space: kernel-virtual address */ 581 int mtrr; /**< MTRR slot used */ 582 }; 583 584 typedef struct drm_local_map drm_local_map_t; 585 586 /** 587 * Mappings list 588 */ 589 struct drm_map_list { 590 struct list_head head; /**< list head */ 591 struct drm_hash_item hash; 592 struct drm_local_map *map; /**< mapping */ 593 uint64_t user_token; 594 struct drm_master *master; 595 struct drm_mm_node *file_offset_node; /**< fake offset */ 596 }; 597 598 /** 599 * Context handle list 600 */ 601 struct drm_ctx_list { 602 struct list_head head; /**< list head */ 603 drm_context_t handle; /**< context handle */ 604 struct drm_file *tag; /**< associated fd private data */ 605 }; 606 607 struct drm_vblank_info { 608 wait_queue_head_t queue; /* vblank wait queue */ 609 atomic_t count; /* number of VBLANK interrupts */ 610 /* (driver must alloc the right number of counters) */ 611 atomic_t refcount; /* number of users of vblank interrupts */ 612 u32 last; /* protected by dev->vbl_lock, used */ 613 /* for wraparound handling */ 614 int enabled; /* so we don't call enable more than */ 615 /* once per disable */ 616 int inmodeset; /* Display driver is setting mode */ 617 }; 618 619 /* location of GART table */ 620 #define DRM_ATI_GART_MAIN 1 621 #define DRM_ATI_GART_FB 2 622 623 #define DRM_ATI_GART_PCI 1 624 #define DRM_ATI_GART_PCIE 2 625 #define DRM_ATI_GART_IGP 3 626 627 struct drm_ati_pcigart_info { 628 int gart_table_location; 629 int gart_reg_if; 630 void *addr; 631 dma_addr_t bus_addr; 632 dma_addr_t table_mask; 633 dma_addr_t member_mask; 634 struct drm_dma_handle *table_handle; 635 drm_local_map_t mapping; 636 int table_size; 637 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 638 }; 639 640 /** 641 * GEM specific mm private for tracking GEM objects 642 */ 643 struct drm_gem_mm { 644 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */ 645 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 646 struct unrhdr *idxunr; 647 }; 648 649 struct drm_gem_object { 650 /** Reference count of this object */ 651 struct kref refcount; 652 653 /** Handle count of this object. Each handle also holds a reference */ 654 atomic_t handle_count; /* number of handles on this object */ 655 656 /** Related drm device */ 657 struct drm_device *dev; 658 659 /** File representing the shmem storage: filp in Linux parlance */ 660 vm_object_t vm_obj; 661 662 bool on_map; 663 struct drm_hash_item map_list; 664 665 /** 666 * Size of the object, in bytes. Immutable over the object's 667 * lifetime. 668 */ 669 size_t size; 670 671 /** 672 * Global name for this object, starts at 1. 0 means unnamed. 673 * Access is covered by the object_name_lock in the related drm_device 674 */ 675 int name; 676 677 /** 678 * Memory domains. These monitor which caches contain read/write data 679 * related to the object. When transitioning from one set of domains 680 * to another, the driver is called to ensure that caches are suitably 681 * flushed and invalidated 682 */ 683 uint32_t read_domains; 684 uint32_t write_domain; 685 686 /** 687 * While validating an exec operation, the 688 * new read/write domain values are computed here. 689 * They will be transferred to the above values 690 * at the point that any cache flushing occurs 691 */ 692 uint32_t pending_read_domains; 693 uint32_t pending_write_domain; 694 695 void *driver_private; 696 697 #ifdef DUMBBELL_WIP 698 /* dma buf exported from this GEM object */ 699 struct dma_buf *export_dma_buf; 700 701 /* dma buf attachment backing this object */ 702 struct dma_buf_attachment *import_attach; 703 #endif /* DUMBBELL_WIP */ 704 }; 705 706 #include "drm_crtc.h" 707 708 /* per-master structure */ 709 struct drm_master { 710 711 struct kref refcount; /* refcount for this master */ 712 713 struct list_head head; /**< each minor contains a list of masters */ 714 struct drm_minor *minor; /**< link back to minor we are a master for */ 715 716 char *unique; /**< Unique identifier: e.g., busid */ 717 int unique_len; /**< Length of unique field */ 718 int unique_size; /**< amount allocated */ 719 720 int blocked; /**< Blocked due to VC switch? */ 721 722 /** \name Authentication */ 723 /*@{ */ 724 struct drm_open_hash magiclist; 725 struct list_head magicfree; 726 /*@} */ 727 728 struct drm_lock_data lock; /**< Information on hardware lock */ 729 730 void *driver_priv; /**< Private structure for driver to use */ 731 }; 732 733 /* Size of ringbuffer for vblank timestamps. Just double-buffer 734 * in initial implementation. 735 */ 736 #define DRM_VBLANKTIME_RBSIZE 2 737 738 /* Flags and return codes for get_vblank_timestamp() driver function. */ 739 #define DRM_CALLED_FROM_VBLIRQ 1 740 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 741 #define DRM_VBLANKTIME_INVBL (1 << 1) 742 743 /* get_scanout_position() return flags */ 744 #define DRM_SCANOUTPOS_VALID (1 << 0) 745 #define DRM_SCANOUTPOS_INVBL (1 << 1) 746 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 747 748 #ifndef DMA_BIT_MASK 749 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 750 #endif 751 752 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 753 754 struct drm_driver { 755 int (*load)(struct drm_device *, unsigned long flags); 756 int (*use_msi)(struct drm_device *, unsigned long flags); 757 int (*firstopen)(struct drm_device *); 758 int (*open)(struct drm_device *, struct drm_file *); 759 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 760 void (*postclose)(struct drm_device *, struct drm_file *); 761 void (*lastclose)(struct drm_device *); 762 int (*unload)(struct drm_device *); 763 void (*reclaim_buffers_locked)(struct drm_device *, 764 struct drm_file *file_priv); 765 int (*dma_ioctl)(struct drm_device *dev, void *data, 766 struct drm_file *file_priv); 767 void (*dma_ready)(struct drm_device *); 768 int (*dma_quiescent)(struct drm_device *); 769 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 770 enum drm_lock_flags flags); 771 int (*dma_flush_unblock)(struct drm_device *, int context, 772 enum drm_lock_flags flags); 773 int (*context_ctor)(struct drm_device *dev, int context); 774 int (*context_dtor)(struct drm_device *dev, int context); 775 int (*kernel_context_switch)(struct drm_device *dev, int old, 776 int new); 777 int (*kernel_context_switch_unlock)(struct drm_device *dev); 778 void (*irq_preinstall)(struct drm_device *dev); 779 int (*irq_postinstall)(struct drm_device *dev); 780 void (*irq_uninstall)(struct drm_device *dev); 781 void (*irq_handler)(DRM_IRQ_ARGS); 782 783 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 784 int (*enable_vblank)(struct drm_device *dev, int crtc); 785 void (*disable_vblank)(struct drm_device *dev, int crtc); 786 int (*get_scanout_position)(struct drm_device *dev, int crtc, 787 int *vpos, int *hpos); 788 789 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 790 int *max_error, struct timeval *vblank_time, 791 unsigned flags); 792 793 int (*gem_init_object)(struct drm_gem_object *obj); 794 void (*gem_free_object)(struct drm_gem_object *obj); 795 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 796 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 797 798 struct cdev_pager_ops *gem_pager_ops; 799 800 int (*dumb_create)(struct drm_file *file_priv, 801 struct drm_device *dev, struct drm_mode_create_dumb *args); 802 int (*dumb_map_offset)(struct drm_file *file_priv, 803 struct drm_device *dev, uint32_t handle, uint64_t *offset); 804 int (*dumb_destroy)(struct drm_file *file_priv, 805 struct drm_device *dev, uint32_t handle); 806 807 int (*sysctl_init)(struct drm_device *dev, 808 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 809 void (*sysctl_cleanup)(struct drm_device *dev); 810 811 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 812 813 /** 814 * Called by \c drm_device_is_agp. Typically used to determine if a 815 * card is really attached to AGP or not. 816 * 817 * \param dev DRM device handle 818 * 819 * \returns 820 * One of three values is returned depending on whether or not the 821 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 822 * (return of 1), or may or may not be AGP (return of 2). 823 */ 824 int (*device_is_agp) (struct drm_device * dev); 825 826 drm_ioctl_desc_t *ioctls; 827 #ifdef COMPAT_FREEBSD32 828 drm_ioctl_desc_t *compat_ioctls; 829 int *compat_ioctls_nr; 830 #endif 831 832 int buf_priv_size; 833 834 int major; 835 int minor; 836 int patchlevel; 837 const char *name; /* Simple driver name */ 838 const char *desc; /* Longer driver name */ 839 const char *date; /* Date of last major changes. */ 840 841 u32 driver_features; 842 int num_ioctls; 843 }; 844 845 /** 846 * DRM minor structure. This structure represents a drm minor number. 847 */ 848 struct drm_minor { 849 int index; /**< Minor device number */ 850 int type; /**< Control or render */ 851 device_t kdev; /**< OS device */ 852 struct drm_device *dev; 853 854 struct drm_master *master; /* currently active master for this node */ 855 struct list_head master_list; 856 struct drm_mode_group mode_group; 857 }; 858 859 /* mode specified on the command line */ 860 struct drm_cmdline_mode { 861 bool specified; 862 bool refresh_specified; 863 bool bpp_specified; 864 int xres, yres; 865 int bpp; 866 int refresh; 867 bool rb; 868 bool interlace; 869 bool cvt; 870 bool margins; 871 enum drm_connector_force force; 872 }; 873 874 875 struct drm_pending_vblank_event { 876 struct drm_pending_event base; 877 int pipe; 878 struct drm_event_vblank event; 879 }; 880 881 struct drm_sysctl_info { 882 struct sysctl_ctx_list ctx; 883 char name[2]; 884 }; 885 886 /* Length for the array of resource pointers for drm_get_resource_*. */ 887 #define DRM_MAX_PCI_RESOURCE 6 888 889 /** 890 * DRM device structure. This structure represent a complete card that 891 * may contain multiple heads. 892 */ 893 struct drm_device { 894 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 895 896 uint16_t pci_subdevice; /* PCI subsystem device id */ 897 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 898 899 char *unique; /* Unique identifier: e.g., busid */ 900 int unique_len; /* Length of unique field */ 901 struct cdev *devnode; /* Device number for mknod */ 902 int if_version; /* Highest interface version set */ 903 904 int flags; /* Flags to open(2) */ 905 906 /* Locks */ 907 struct spinlock dma_lock; /* protects dev->dma */ 908 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 909 struct lock dev_lock; /* protects everything else */ 910 911 /** \name Locks */ 912 /*@{ */ 913 struct lock struct_mutex; /**< For others */ 914 /*@} */ 915 916 /** \name Usage Counters */ 917 /*@{ */ 918 int open_count; /* Outstanding files open */ 919 int buf_use; /* Buffers in use -- cannot alloc */ 920 /*@} */ 921 922 923 /** \name Performance counters */ 924 /*@{ */ 925 unsigned long counters; 926 enum drm_stat_type types[15]; 927 atomic_t counts[15]; 928 /*@} */ 929 930 /* Authentication */ 931 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 932 933 struct list_head filelist; 934 935 /** \name Memory management */ 936 /*@{ */ 937 struct list_head maplist; /**< Linked list of regions */ 938 int map_count; /**< Number of mappable regions */ 939 struct drm_open_hash map_hash; /**< User token hash table for maps */ 940 941 /** \name Context handle management */ 942 /*@{ */ 943 struct list_head ctxlist; /**< Linked list of context handles */ 944 int ctx_count; /**< Number of context handles */ 945 struct lock ctxlist_mutex; /**< For ctxlist */ 946 947 struct idr ctx_idr; 948 949 /*@} */ 950 951 struct drm_lock_data lock; /* Information on hardware lock */ 952 953 /* DMA queues (contexts) */ 954 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 955 956 int irq; /* Interrupt used by board */ 957 int msi_enabled; /* MSI enabled */ 958 int irqrid; /* Interrupt used by board */ 959 struct resource *irqr; /* Resource for interrupt used by board */ 960 void *irqh; /* Handle from bus_setup_intr */ 961 962 /* Storage of resource pointers for drm_get_resource_* */ 963 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 964 int pcirid[DRM_MAX_PCI_RESOURCE]; 965 966 int pci_domain; 967 int pci_bus; 968 int pci_slot; 969 int pci_func; 970 971 /** \name Context support */ 972 /*@{ */ 973 int irq_enabled; /**< True if irq handler is enabled */ 974 __volatile__ long context_flag; /**< Context swapping flag */ 975 __volatile__ long interrupt_flag; /**< Interruption handler flag */ 976 __volatile__ long dma_flag; /**< DMA dispatch flag */ 977 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ 978 int last_checked; /**< Last context checked for DMA */ 979 int last_context; /**< Last current context */ 980 unsigned long last_switch; /**< jiffies at last context switch */ 981 /*@} */ 982 983 int num_crtcs; 984 985 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 986 987 /* Sysctl support */ 988 struct drm_sysctl_info *sysctl; 989 int sysctl_node_idx; 990 991 992 drm_sg_mem_t *sg; /* Scatter gather memory */ 993 unsigned long *ctx_bitmap; 994 void *dev_private; 995 996 void *drm_ttm_bdev; 997 998 /* 999 * At load time, disabling the vblank interrupt won't be allowed since 1000 * old clients may not call the modeset ioctl and therefore misbehave. 1001 * Once the modeset ioctl *has* been called though, we can safely 1002 * disable them when unused. 1003 */ 1004 int vblank_disable_allowed; 1005 1006 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */ 1007 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 1008 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 1009 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 1010 struct lock vbl_lock; 1011 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 1012 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 1013 /* for wraparound handling */ 1014 int *vblank_enabled; /* so we don't call enable more than 1015 once per disable */ 1016 int *vblank_inmodeset; /* Display driver is setting mode */ 1017 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 1018 struct timer_list vblank_disable_timer; 1019 1020 u32 max_vblank_count; /**< size of vblank counter register */ 1021 1022 /** 1023 * List of events 1024 */ 1025 struct list_head vblank_event_list; 1026 struct lock event_lock; 1027 1028 /*@} */ 1029 1030 struct drm_agp_head *agp; /**< AGP data */ 1031 1032 struct device *dev; /**< Device structure */ 1033 struct pci_dev *pdev; /**< PCI device structure */ 1034 int pci_vendor; /**< PCI vendor id */ 1035 int pci_device; /**< PCI device id */ 1036 1037 struct drm_driver *driver; 1038 struct drm_local_map *agp_buffer_map; 1039 unsigned int agp_buffer_token; 1040 struct drm_minor *control; /**< Control node for card */ 1041 struct drm_minor *primary; /**< render type primary screen head */ 1042 1043 struct drm_mode_config mode_config; /**< Current mode config */ 1044 1045 /** \name GEM information */ 1046 /*@{ */ 1047 struct lock object_name_lock; 1048 struct idr object_name_idr; 1049 /*@} */ 1050 void *mm_private; 1051 1052 void *sysctl_private; 1053 char busid_str[128]; 1054 int modesetting; 1055 1056 int switch_power_state; 1057 }; 1058 1059 #define DRM_SWITCH_POWER_ON 0 1060 #define DRM_SWITCH_POWER_OFF 1 1061 #define DRM_SWITCH_POWER_CHANGING 2 1062 1063 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1064 int feature) 1065 { 1066 return ((dev->driver->driver_features & feature) ? 1 : 0); 1067 } 1068 1069 #if __OS_HAS_AGP 1070 static inline int drm_core_has_AGP(struct drm_device *dev) 1071 { 1072 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1073 } 1074 #else 1075 #define drm_core_has_AGP(dev) (0) 1076 #endif 1077 1078 enum dmi_field { 1079 DMI_NONE, 1080 DMI_BIOS_VENDOR, 1081 DMI_BIOS_VERSION, 1082 DMI_BIOS_DATE, 1083 DMI_SYS_VENDOR, 1084 DMI_PRODUCT_NAME, 1085 DMI_PRODUCT_VERSION, 1086 DMI_PRODUCT_SERIAL, 1087 DMI_PRODUCT_UUID, 1088 DMI_BOARD_VENDOR, 1089 DMI_BOARD_NAME, 1090 DMI_BOARD_VERSION, 1091 DMI_BOARD_SERIAL, 1092 DMI_BOARD_ASSET_TAG, 1093 DMI_CHASSIS_VENDOR, 1094 DMI_CHASSIS_TYPE, 1095 DMI_CHASSIS_VERSION, 1096 DMI_CHASSIS_SERIAL, 1097 DMI_CHASSIS_ASSET_TAG, 1098 DMI_STRING_MAX, 1099 }; 1100 1101 struct dmi_strmatch { 1102 unsigned char slot; 1103 char substr[79]; 1104 }; 1105 1106 struct dmi_system_id { 1107 int (*callback)(const struct dmi_system_id *); 1108 const char *ident; 1109 struct dmi_strmatch matches[4]; 1110 }; 1111 #define DMI_MATCH(a, b) {(a), (b)} 1112 bool dmi_check_system(const struct dmi_system_id *); 1113 1114 extern int drm_notyet_flag; 1115 extern int drm_debug; 1116 1117 extern unsigned int drm_vblank_offdelay; 1118 extern unsigned int drm_timestamp_precision; 1119 extern unsigned int drm_timestamp_monotonic; 1120 1121 /* Device setup support (drm_drv.c) */ 1122 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1123 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1124 int drm_create_cdevs(device_t kdev); 1125 1126 d_ioctl_t drm_ioctl; 1127 extern int drm_lastclose(struct drm_device *dev); 1128 1129 /* Device support (drm_fops.h) */ 1130 d_open_t drm_open; 1131 d_close_t drm_close; 1132 d_read_t drm_read; 1133 d_kqfilter_t drm_kqfilter; 1134 int drm_release(device_t kdev); 1135 1136 d_mmap_t drm_mmap; 1137 d_mmap_single_t drm_mmap_single; 1138 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1139 1140 void drm_cdevpriv_dtor(void *cd); 1141 1142 void drm_event_wakeup(struct drm_pending_event *e); 1143 1144 int drm_add_busid_modesetting(struct drm_device *dev, 1145 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1146 1147 /* File operations helpers (drm_fops.c) */ 1148 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1149 DRM_STRUCTPROC *p, 1150 struct drm_device *dev, 1151 struct file *fp); 1152 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1153 DRM_STRUCTPROC *p); 1154 1155 #ifdef DUMBBELL_WIP 1156 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1157 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1158 int *prime_fd); 1159 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1160 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1161 1162 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1163 struct drm_file *file_priv); 1164 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1165 struct drm_file *file_priv); 1166 1167 #ifdef DUMBBELL_WIP 1168 /* 1169 * See drm_prime.c 1170 * -- dumbbell@ 1171 */ 1172 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1173 dma_addr_t *addrs, int max_pages); 1174 #endif /* DUMBBELL_WIP */ 1175 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1176 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1177 1178 1179 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1180 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1181 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1182 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1183 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1184 1185 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1186 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1187 struct drm_gem_object **obj); 1188 #endif /* DUMBBELL_WIP */ 1189 1190 /* Memory management support (drm_memory.h) */ 1191 #include <drm/drm_memory.h> 1192 void drm_mem_init(void); 1193 void drm_mem_uninit(void); 1194 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1195 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1196 void drm_ioremapfree(drm_local_map_t *map); 1197 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1198 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1199 1200 int drm_ctxbitmap_init(struct drm_device *dev); 1201 void drm_ctxbitmap_cleanup(struct drm_device *dev); 1202 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1203 1204 /* Locking IOCTL support (drm_lock.c) */ 1205 int drm_lock_take(struct drm_lock_data *lock_data, 1206 unsigned int context); 1207 int drm_lock_transfer(struct drm_lock_data *lock_data, 1208 unsigned int context); 1209 int drm_lock_free(struct drm_lock_data *lock_data, 1210 unsigned int context); 1211 1212 /* 1213 * These are exported to drivers so that they can implement fencing using 1214 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1215 */ 1216 1217 unsigned long drm_get_resource_start(struct drm_device *dev, 1218 unsigned int resource); 1219 unsigned long drm_get_resource_len(struct drm_device *dev, 1220 unsigned int resource); 1221 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1222 int drm_order(unsigned long size); 1223 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1224 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1225 extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1226 unsigned int size, enum drm_map_type type, 1227 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1228 1229 /* DMA support (drm_dma.c) */ 1230 int drm_dma_setup(struct drm_device *dev); 1231 void drm_dma_takedown(struct drm_device *dev); 1232 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1233 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1234 #define drm_core_reclaim_buffers drm_reclaim_buffers 1235 1236 /* IRQ support (drm_irq.h) */ 1237 int drm_irq_install(struct drm_device *dev); 1238 int drm_irq_uninstall(struct drm_device *dev); 1239 void drm_driver_irq_preinstall(struct drm_device *dev); 1240 void drm_driver_irq_postinstall(struct drm_device *dev); 1241 void drm_driver_irq_uninstall(struct drm_device *dev); 1242 1243 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1244 void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1245 int drm_modeset_ctl(struct drm_device *dev, void *data, 1246 struct drm_file *file_priv); 1247 1248 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1249 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1250 struct drm_file *filp); 1251 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1252 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1253 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1254 struct timeval *vblanktime); 1255 extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1256 struct drm_pending_vblank_event *e); 1257 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1258 void drm_handle_vblank_events(struct drm_device *dev, int crtc); 1259 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1260 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1261 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1262 extern void drm_vblank_cleanup(struct drm_device *dev); 1263 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1264 struct timeval *tvblank, unsigned flags); 1265 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1266 int crtc, int *max_error, 1267 struct timeval *vblank_time, 1268 unsigned flags, 1269 struct drm_crtc *refcrtc); 1270 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1271 1272 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1273 int drm_device_is_agp(struct drm_device *dev); 1274 int drm_device_is_pcie(struct drm_device *dev); 1275 drm_agp_head_t *drm_agp_init(void); 1276 int drm_agp_acquire(struct drm_device *dev); 1277 int drm_agp_release(struct drm_device *dev); 1278 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 1279 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1280 void *drm_agp_allocate_memory(size_t pages, u32 type); 1281 int drm_agp_free_memory(void *handle); 1282 int drm_agp_bind_memory(void *handle, off_t start); 1283 int drm_agp_unbind_memory(void *handle); 1284 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1285 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1286 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1287 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1288 1289 /* Scatter Gather Support (drm_scatter.c) */ 1290 void drm_sg_cleanup(drm_sg_mem_t *entry); 1291 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1292 1293 /* sysctl support (drm_sysctl.h) */ 1294 extern int drm_sysctl_init(struct drm_device *dev); 1295 extern int drm_sysctl_cleanup(struct drm_device *dev); 1296 1297 /* ATI PCIGART support (ati_pcigart.c) */ 1298 int drm_ati_pcigart_init(struct drm_device *dev, 1299 struct drm_ati_pcigart_info *gart_info); 1300 int drm_ati_pcigart_cleanup(struct drm_device *dev, 1301 struct drm_ati_pcigart_info *gart_info); 1302 1303 /* Cache management (drm_memory.c) */ 1304 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1305 1306 /* Locking IOCTL support (drm_drv.c) */ 1307 int drm_lock(struct drm_device *dev, void *data, 1308 struct drm_file *file_priv); 1309 int drm_unlock(struct drm_device *dev, void *data, 1310 struct drm_file *file_priv); 1311 int drm_version(struct drm_device *dev, void *data, 1312 struct drm_file *file_priv); 1313 int drm_setversion(struct drm_device *dev, void *data, 1314 struct drm_file *file_priv); 1315 1316 /* Misc. IOCTL support (drm_ioctl.c) */ 1317 int drm_irq_by_busid(struct drm_device *dev, void *data, 1318 struct drm_file *file_priv); 1319 int drm_getunique(struct drm_device *dev, void *data, 1320 struct drm_file *file_priv); 1321 int drm_setunique(struct drm_device *dev, void *data, 1322 struct drm_file *file_priv); 1323 int drm_getmap(struct drm_device *dev, void *data, 1324 struct drm_file *file_priv); 1325 int drm_getclient(struct drm_device *dev, void *data, 1326 struct drm_file *file_priv); 1327 int drm_getstats(struct drm_device *dev, void *data, 1328 struct drm_file *file_priv); 1329 int drm_getcap(struct drm_device *dev, void *data, 1330 struct drm_file *file_priv); 1331 int drm_noop(struct drm_device *dev, void *data, 1332 struct drm_file *file_priv); 1333 1334 /* Context IOCTL support (drm_context.c) */ 1335 int drm_resctx(struct drm_device *dev, void *data, 1336 struct drm_file *file_priv); 1337 int drm_addctx(struct drm_device *dev, void *data, 1338 struct drm_file *file_priv); 1339 int drm_modctx(struct drm_device *dev, void *data, 1340 struct drm_file *file_priv); 1341 int drm_getctx(struct drm_device *dev, void *data, 1342 struct drm_file *file_priv); 1343 int drm_switchctx(struct drm_device *dev, void *data, 1344 struct drm_file *file_priv); 1345 int drm_newctx(struct drm_device *dev, void *data, 1346 struct drm_file *file_priv); 1347 int drm_rmctx(struct drm_device *dev, void *data, 1348 struct drm_file *file_priv); 1349 int drm_setsareactx(struct drm_device *dev, void *data, 1350 struct drm_file *file_priv); 1351 int drm_getsareactx(struct drm_device *dev, void *data, 1352 struct drm_file *file_priv); 1353 1354 /* Authentication IOCTL support (drm_auth.c) */ 1355 int drm_getmagic(struct drm_device *dev, void *data, 1356 struct drm_file *file_priv); 1357 int drm_authmagic(struct drm_device *dev, void *data, 1358 struct drm_file *file_priv); 1359 1360 /* Cache management (drm_cache.c) */ 1361 void drm_clflush_virt_range(char *addr, unsigned long length); 1362 1363 /* Buffer management support (drm_bufs.c) */ 1364 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1365 struct drm_file *file_priv); 1366 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1367 struct drm_file *file_priv); 1368 int drm_addbufs(struct drm_device *dev, void *data, 1369 struct drm_file *file_priv); 1370 int drm_infobufs(struct drm_device *dev, void *data, 1371 struct drm_file *file_priv); 1372 int drm_markbufs(struct drm_device *dev, void *data, 1373 struct drm_file *file_priv); 1374 int drm_freebufs(struct drm_device *dev, void *data, 1375 struct drm_file *file_priv); 1376 int drm_mapbufs(struct drm_device *dev, void *data, 1377 struct drm_file *file_priv); 1378 1379 /* DMA support (drm_dma.c) */ 1380 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1381 1382 /* IRQ support (drm_irq.c) */ 1383 int drm_control(struct drm_device *dev, void *data, 1384 struct drm_file *file_priv); 1385 1386 /* AGP/GART support (drm_agpsupport.c) */ 1387 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1388 struct drm_file *file_priv); 1389 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1390 struct drm_file *file_priv); 1391 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1392 struct drm_file *file_priv); 1393 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1394 struct drm_file *file_priv); 1395 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1396 struct drm_file *file_priv); 1397 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1398 struct drm_file *file_priv); 1399 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1400 struct drm_file *file_priv); 1401 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1402 struct drm_file *file_priv); 1403 1404 /* Stub support (drm_stub.h) */ 1405 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1406 struct drm_file *file_priv); 1407 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1408 struct drm_file *file_priv); 1409 1410 /* Scatter Gather Support (drm_scatter.c) */ 1411 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1412 struct drm_file *file_priv); 1413 int drm_sg_free(struct drm_device *dev, void *data, 1414 struct drm_file *file_priv); 1415 1416 /* consistent PCI memory functions (drm_pci.c) */ 1417 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1418 size_t align); 1419 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1420 1421 /* sysfs support (drm_sysfs.c) */ 1422 struct drm_sysfs_class; 1423 extern struct class *drm_sysfs_create(struct module *owner, char *name); 1424 extern void drm_sysfs_destroy(void); 1425 extern int drm_sysfs_device_add(struct drm_minor *minor); 1426 extern void drm_sysfs_hotplug_event(struct drm_device *dev); 1427 extern void drm_sysfs_device_remove(struct drm_minor *minor); 1428 extern int drm_sysfs_connector_add(struct drm_connector *connector); 1429 extern void drm_sysfs_connector_remove(struct drm_connector *connector); 1430 1431 /* Graphics Execution Manager library functions (drm_gem.c) */ 1432 int drm_gem_init(struct drm_device *dev); 1433 void drm_gem_destroy(struct drm_device *dev); 1434 void drm_gem_object_release(struct drm_gem_object *obj); 1435 void drm_gem_object_free(struct kref *kref); 1436 1437 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1438 struct drm_file *file_priv); 1439 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1440 struct drm_file *file_priv); 1441 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1442 struct drm_file *file_priv); 1443 void drm_gem_object_handle_free(struct drm_gem_object *obj); 1444 1445 int i915_gem_pager_ctor(void *handle, vm_ooffset_t size, vm_prot_t prot, 1446 vm_ooffset_t foff, struct ucred *cred, u_short *color); 1447 void i915_gem_pager_dtor(void * handle); 1448 1449 #include <drm/drm_global.h> 1450 1451 static inline void 1452 drm_gem_object_reference(struct drm_gem_object *obj) 1453 { 1454 kref_get(&obj->refcount); 1455 } 1456 1457 static inline void 1458 drm_gem_object_unreference(struct drm_gem_object *obj) 1459 { 1460 if (obj != NULL) 1461 kref_put(&obj->refcount, drm_gem_object_free); 1462 } 1463 1464 static inline void 1465 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1466 { 1467 if (obj != NULL) { 1468 struct drm_device *dev = obj->dev; 1469 DRM_LOCK(dev); 1470 kref_put(&obj->refcount, drm_gem_object_free); 1471 DRM_UNLOCK(dev); 1472 } 1473 } 1474 1475 int drm_gem_handle_create(struct drm_file *file_priv, 1476 struct drm_gem_object *obj, 1477 u32 *handlep); 1478 int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1479 1480 static inline void 1481 drm_gem_object_handle_reference(struct drm_gem_object *obj) 1482 { 1483 drm_gem_object_reference(obj); 1484 atomic_inc(&obj->handle_count); 1485 } 1486 1487 static inline void 1488 drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1489 { 1490 if (obj == NULL) 1491 return; 1492 1493 if (atomic_read(&obj->handle_count) == 0) 1494 return; 1495 /* 1496 * Must bump handle count first as this may be the last 1497 * ref, in which case the object would disappear before we 1498 * checked for a name 1499 */ 1500 if (atomic_dec_and_test(&obj->handle_count)) 1501 drm_gem_object_handle_free(obj); 1502 drm_gem_object_unreference(obj); 1503 } 1504 1505 static inline void 1506 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) 1507 { 1508 if (obj == NULL) 1509 return; 1510 1511 if (atomic_read(&obj->handle_count) == 0) 1512 return; 1513 1514 /* 1515 * Must bump handle count first as this may be the last 1516 * ref, in which case the object would disappear before we 1517 * checked for a name 1518 */ 1519 1520 if (atomic_dec_and_test(&obj->handle_count)) 1521 drm_gem_object_handle_free(obj); 1522 drm_gem_object_unreference_unlocked(obj); 1523 } 1524 1525 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, 1526 size_t size); 1527 int drm_gem_private_object_init(struct drm_device *dev, 1528 struct drm_gem_object *obj, size_t size); 1529 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1530 size_t size); 1531 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1532 struct drm_file *file_priv, uint32_t handle); 1533 1534 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1535 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1536 1537 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1538 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1539 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1540 vm_size_t size, struct vm_object **obj_res, int nprot); 1541 void drm_gem_pager_dtr(void *obj); 1542 1543 struct ttm_bo_device; 1544 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1545 vm_size_t size, struct vm_object **obj_res, int nprot); 1546 struct ttm_buffer_object; 1547 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1548 1549 void drm_device_lock_mtx(struct drm_device *dev); 1550 void drm_device_unlock_mtx(struct drm_device *dev); 1551 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1552 const char *msg, int timeout); 1553 void drm_device_assert_mtx_locked(struct drm_device *dev); 1554 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1555 1556 void drm_device_lock_struct(struct drm_device *dev); 1557 void drm_device_unlock_struct(struct drm_device *dev); 1558 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1559 const char *msg, int timeout); 1560 void drm_device_assert_struct_locked(struct drm_device *dev); 1561 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1562 1563 void drm_compat_locking_init(struct drm_device *dev); 1564 void drm_sleep_locking_init(struct drm_device *dev); 1565 1566 /* drm_modes.c */ 1567 bool drm_mode_parse_command_line_for_connector(const char *mode_option, 1568 struct drm_connector *connector, struct drm_cmdline_mode *mode); 1569 struct drm_display_mode *drm_mode_create_from_cmdline_mode( 1570 struct drm_device *dev, struct drm_cmdline_mode *cmd); 1571 1572 /* Inline replacements for drm_alloc and friends */ 1573 static __inline__ void * 1574 drm_alloc(size_t size, struct malloc_type *area) 1575 { 1576 return kmalloc(size, area, M_WAITOK | M_NULLOK); 1577 } 1578 1579 static __inline__ void * 1580 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1581 { 1582 return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO); 1583 } 1584 1585 static __inline__ void 1586 drm_free(void *pt, struct malloc_type *area) 1587 { 1588 kfree(pt); 1589 } 1590 1591 /* Inline replacements for DRM_IOREMAP macros */ 1592 static __inline__ void 1593 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1594 { 1595 map->handle = drm_ioremap_wc(dev, map); 1596 } 1597 static __inline__ void 1598 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1599 { 1600 map->handle = drm_ioremap(dev, map); 1601 } 1602 static __inline__ void 1603 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1604 { 1605 if ( map->handle && map->size ) 1606 drm_ioremapfree(map); 1607 } 1608 1609 static __inline__ struct drm_local_map * 1610 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1611 { 1612 struct drm_map_list *_entry; 1613 1614 list_for_each_entry(_entry, &dev->maplist, head) { 1615 if (offset == (unsigned long)_entry->map->handle) 1616 return _entry->map; 1617 } 1618 return NULL; 1619 } 1620 1621 static __inline__ void drm_core_dropmap(struct drm_map *map) 1622 { 1623 } 1624 1625 #include <drm/drm_mem_util.h> 1626 1627 /* FreeBSD compatibility macros */ 1628 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1629 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1630 1631 #define DRM_PCIE_SPEED_25 1 1632 #define DRM_PCIE_SPEED_50 2 1633 #define DRM_PCIE_SPEED_80 4 1634 1635 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1636 1637 #define drm_can_sleep() (DRM_HZ & 1) 1638 1639 #endif /* __KERNEL__ */ 1640 #endif /* _DRM_P_H_ */ 1641