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 * $FreeBSD: head/sys/dev/drm2/drmP.h 255045 2013-08-29 23:09:34Z jkim $ 35 */ 36 37 #ifndef _DRM_P_H_ 38 #define _DRM_P_H_ 39 40 #if defined(_KERNEL) || defined(__KERNEL__) 41 42 #include <sys/param.h> 43 #include <sys/queue.h> 44 #include <sys/malloc.h> 45 #include <sys/kernel.h> 46 #include <sys/ktr.h> 47 #include <sys/module.h> 48 #include <sys/systm.h> 49 #include <sys/device.h> 50 #include <sys/sglist.h> 51 #include <sys/stat.h> 52 #include <sys/priv.h> 53 #include <sys/proc.h> 54 #include <sys/lock.h> 55 #include <sys/spinlock.h> 56 #include <sys/spinlock2.h> 57 #include <sys/fcntl.h> 58 #include <sys/uio.h> 59 #include <sys/filio.h> 60 #include <sys/sysctl.h> 61 #include <sys/bus.h> 62 #include <sys/queue.h> 63 #include <sys/signalvar.h> 64 #include <sys/poll.h> 65 #include <sys/sbuf.h> 66 #include <sys/taskqueue.h> 67 #include <sys/tree.h> 68 #include <vm/vm.h> 69 #include <vm/pmap.h> 70 #include <vm/vm_extern.h> 71 #include <vm/vm_kern.h> 72 #include <vm/vm_map.h> 73 #include <vm/vm_object.h> 74 #include <vm/vm_page2.h> 75 #include <vm/vm_pager.h> 76 #include <vm/vm_param.h> 77 #include <machine/param.h> 78 #include <machine/pmap.h> 79 #if defined(__i386__) || defined(__amd64__) 80 #include <machine/specialreg.h> 81 #endif 82 #include <machine/sysarch.h> 83 #include <sys/endian.h> 84 #include <sys/mman.h> 85 #include <sys/rman.h> 86 #include <sys/memrange.h> 87 #include <dev/agp/agpvar.h> 88 #include <sys/agpio.h> 89 #include <sys/mutex.h> 90 #include <bus/pci/pcivar.h> 91 #include <bus/pci/pcireg.h> 92 93 #include <uapi_drm/drm.h> 94 #include <uapi_drm/drm_sarea.h> 95 96 #include <linux/atomic.h> 97 #include <linux/err.h> 98 #include <linux/idr.h> 99 #include <linux/pci.h> 100 #include <linux/jiffies.h> 101 #include <linux/kernel.h> 102 #include <linux/kref.h> 103 #include <linux/list.h> 104 #include <linux/mm.h> 105 #include <linux/mutex.h> 106 #include <linux/timer.h> 107 #include <asm/io.h> 108 #include <linux/types.h> 109 #include <linux/wait.h> 110 111 #include <asm/uaccess.h> 112 113 struct drm_file; 114 struct drm_device; 115 116 #include <drm/drm_os_linux.h> 117 #include <drm/drm_hashtab.h> 118 #include <drm/drm_mm.h> 119 120 #define DRM_UT_CORE 0x01 121 #define DRM_UT_DRIVER 0x02 122 #define DRM_UT_KMS 0x04 123 #define DRM_UT_PRIME 0x08 124 125 #include "opt_drm.h" 126 #ifdef DRM_DEBUG 127 #undef DRM_DEBUG 128 #define DRM_DEBUG_DEFAULT_ON 1 129 #endif /* DRM_DEBUG */ 130 131 #define DRM_DEBUGBITS_DEBUG 0x1 132 #define DRM_DEBUGBITS_KMS 0x2 133 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 134 135 #undef DRM_LINUX 136 #define DRM_LINUX 0 137 138 /***********************************************************************/ 139 /** \name DRM template customization defaults */ 140 /*@{*/ 141 142 /* driver capabilities and requirements mask */ 143 #define DRIVER_USE_AGP 0x1 144 #define DRIVER_REQUIRE_AGP 0x2 145 #define DRIVER_USE_MTRR 0x4 146 #define DRIVER_PCI_DMA 0x8 147 #define DRIVER_SG 0x10 148 #define DRIVER_HAVE_DMA 0x20 149 #define DRIVER_HAVE_IRQ 0x40 150 #define DRIVER_IRQ_SHARED 0x80 151 #define DRIVER_IRQ_VBL 0x100 152 #define DRIVER_DMA_QUEUE 0x200 153 #define DRIVER_FB_DMA 0x400 154 #define DRIVER_IRQ_VBL2 0x800 155 #define DRIVER_GEM 0x1000 156 #define DRIVER_MODESET 0x2000 157 #define DRIVER_PRIME 0x4000 158 #define DRIVER_LOCKLESS_IRQ 0x8000 159 160 /***********************************************************************/ 161 /** \name Begin the DRM... */ 162 /*@{*/ 163 164 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 165 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 166 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 167 168 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 169 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 170 #define DRM_GEM_MAX_IDX 0x3fffff 171 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 172 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 173 #define DRM_GEM_MAPPING_MAPOFF(o) \ 174 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 175 176 MALLOC_DECLARE(M_DRM); 177 178 SYSCTL_DECL(_hw_drm); 179 180 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 181 182 /***********************************************************************/ 183 /** \name Internal types and structures */ 184 /*@{*/ 185 186 #define DRM_ARRAY_SIZE(x) NELEM(x) 187 #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 188 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 189 190 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 191 192 #define __OS_HAS_AGP 1 193 194 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 195 #define DRM_DEV_UID 0 196 #define DRM_DEV_GID 0 197 198 #define DRM_WAKEUP(w) wakeup((void *)w) 199 #define DRM_WAKEUP_INT(w) wakeup(w) 200 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 201 202 #define DRM_CURPROC curthread 203 #define DRM_STRUCTPROC struct thread 204 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1) 205 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE) 206 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE) 207 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 208 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout))) 209 #if defined(INVARIANTS) 210 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0); 211 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0); 212 #else 213 #define DRM_LOCK_ASSERT(d) 214 #define DRM_UNLOCK_ASSERT(d) 215 #endif 216 217 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 218 219 #define DRM_IRQ_ARGS void *arg 220 typedef void irqreturn_t; 221 #define IRQ_HANDLED /* nothing */ 222 #define IRQ_NONE /* nothing */ 223 224 enum { 225 DRM_IS_NOT_AGP, 226 DRM_IS_AGP, 227 DRM_MIGHT_BE_AGP 228 }; 229 #define DRM_AGP_MEM struct agp_memory_info 230 231 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 232 233 /* DRM_SUSER returns true if the user is superuser */ 234 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 235 #define DRM_AGP_FIND_DEVICE() agp_find_device() 236 #define DRM_MTRR_WC MDF_WRITECOMBINE 237 238 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 239 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 240 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 241 */ 242 #define DRM_READMEMORYBARRIER() cpu_lfence() 243 #define DRM_WRITEMEMORYBARRIER() cpu_sfence() 244 #define DRM_MEMORYBARRIER() cpu_mfence() 245 246 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 247 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 248 249 #define DRM_COPY_TO_USER(user, kern, size) \ 250 copyout(kern, user, size) 251 #define DRM_COPY_FROM_USER(kern, user, size) \ 252 copyin(user, kern, size) 253 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 254 copyin(arg2, arg1, arg3) 255 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 256 copyout(arg2, arg1, arg3) 257 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 258 ((val) = fuword32(uaddr), 0) 259 260 #define drm_can_sleep() (DRM_HZ & 1) 261 262 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 263 (_map) = (_dev)->context_sareas[_ctx]; \ 264 } while(0) 265 266 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 267 do { \ 268 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 269 dev->lock.file_priv != file_priv) { \ 270 DRM_ERROR("%s called without lock held\n", \ 271 __FUNCTION__); \ 272 return EINVAL; \ 273 } \ 274 } while (0) 275 276 /* Returns -errno to shared code */ 277 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 278 for ( ret = 0 ; !ret && !(condition) ; ) { \ 279 DRM_UNLOCK(dev); \ 280 lwkt_serialize_enter(&dev->irq_lock); \ 281 if (!(condition)) { \ 282 tsleep_interlock(&(queue), PCATCH); \ 283 lwkt_serialize_exit(&dev->irq_lock); \ 284 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 285 "drmwtq", (timeout)); \ 286 } else { \ 287 lwkt_serialize_exit(&dev->irq_lock); \ 288 } \ 289 DRM_LOCK(dev); \ 290 } 291 292 __inline static void 293 vm_page_unhold_pages(vm_page_t *ma, int count) 294 { 295 int i; 296 297 for (i = 0; i < count; i++) 298 vm_page_unhold(ma[i]); 299 } 300 301 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 302 vm_memattr_t memattr); 303 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 304 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 305 306 #define DRM_ERROR(fmt, ...) \ 307 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 308 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 309 310 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 311 312 #define DRM_DEBUG(fmt, ...) do { \ 313 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 314 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 315 __func__ , ##__VA_ARGS__); \ 316 } while (0) 317 318 #define DRM_DEBUG_KMS(fmt, ...) do { \ 319 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 320 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 321 __func__ , ##__VA_ARGS__); \ 322 } while (0) 323 324 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 325 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 326 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 327 __func__ , ##__VA_ARGS__); \ 328 } while (0) 329 330 #define dev_err(dev, fmt, ...) \ 331 device_printf((dev), "error: " fmt, ## __VA_ARGS__) 332 #define dev_warn(dev, fmt, ...) \ 333 device_printf((dev), "warning: " fmt, ## __VA_ARGS__) 334 #define dev_info(dev, fmt, ...) \ 335 device_printf((dev), "info: " fmt, ## __VA_ARGS__) 336 #define dev_dbg(dev, fmt, ...) do { \ 337 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 338 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 339 } \ 340 } while (0) 341 342 typedef struct drm_pci_id_list 343 { 344 int vendor; 345 int device; 346 long driver_private; 347 char *name; 348 } drm_pci_id_list_t; 349 350 struct drm_msi_blacklist_entry 351 { 352 int vendor; 353 int device; 354 }; 355 356 #define DRM_IOCTL_NR(n) ((n) & 0xff) 357 358 #define DRM_AUTH 0x1 359 #define DRM_MASTER 0x2 360 #define DRM_ROOT_ONLY 0x4 361 #define DRM_CONTROL_ALLOW 0x8 362 #define DRM_UNLOCKED 0x10 363 364 typedef struct drm_ioctl_desc { 365 unsigned long cmd; 366 int (*func)(struct drm_device *dev, void *data, 367 struct drm_file *file_priv); 368 int flags; 369 unsigned int cmd_drv; 370 } drm_ioctl_desc_t; 371 372 /** 373 * Creates a driver or general drm_ioctl_desc array entry for the given 374 * ioctl, for use by drm_ioctl(). 375 */ 376 #define DRM_IOCTL_DEF(ioctl, func, flags) \ 377 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 378 379 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 380 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 381 382 typedef struct drm_magic_entry { 383 drm_magic_t magic; 384 struct drm_file *priv; 385 struct drm_magic_entry *next; 386 } drm_magic_entry_t; 387 388 typedef struct drm_magic_head { 389 struct drm_magic_entry *head; 390 struct drm_magic_entry *tail; 391 } drm_magic_head_t; 392 393 typedef struct drm_buf { 394 int idx; /**< Index into master buflist */ 395 int total; /**< Buffer size */ 396 int order; /**< log-base-2(total) */ 397 int used; /**< Amount of buffer in use (for DMA) */ 398 unsigned long offset; /**< Byte offset (used internally) */ 399 void *address; /**< Address of buffer */ 400 unsigned long bus_address; /**< Bus address of buffer */ 401 struct drm_buf *next; /**< Kernel-only: used for free list */ 402 __volatile__ int waiting; /**< On kernel DMA queue */ 403 __volatile__ int pending; /**< On hardware DMA queue */ 404 struct drm_file *file_priv; /**< Private of holding file descr */ 405 int context; /**< Kernel queue for this buffer */ 406 int while_locked; /**< Dispatch this buffer while locked */ 407 enum { 408 DRM_LIST_NONE = 0, 409 DRM_LIST_FREE = 1, 410 DRM_LIST_WAIT = 2, 411 DRM_LIST_PEND = 3, 412 DRM_LIST_PRIO = 4, 413 DRM_LIST_RECLAIM = 5 414 } list; /**< Which list we're on */ 415 416 int dev_priv_size; /**< Size of buffer private storage */ 417 void *dev_private; /**< Per-buffer private storage */ 418 } drm_buf_t; 419 420 struct drm_freelist { 421 int initialized; /* Freelist in use */ 422 atomic_t count; /* Number of free buffers */ 423 drm_buf_t *next; /* End pointer */ 424 425 wait_queue_head_t waiting; /**< Processes waiting on free bufs */ 426 int low_mark; /* Low water mark */ 427 int high_mark; /* High water mark */ 428 }; 429 430 typedef struct drm_dma_handle { 431 void *vaddr; 432 bus_addr_t busaddr; 433 bus_dma_tag_t tag; 434 bus_dmamap_t map; 435 } drm_dma_handle_t; 436 437 typedef struct drm_buf_entry { 438 int buf_size; 439 int buf_count; 440 drm_buf_t *buflist; 441 int seg_count; 442 drm_dma_handle_t **seglist; 443 int page_order; 444 445 struct drm_freelist freelist; 446 } drm_buf_entry_t; 447 448 /* Event queued up for userspace to read */ 449 struct drm_pending_event { 450 struct drm_event *event; 451 struct list_head link; 452 struct drm_file *file_priv; 453 pid_t pid; /* pid of requester, no guarantee it's valid by the time 454 we deliver the event, for tracing only */ 455 void (*destroy)(struct drm_pending_event *event); 456 }; 457 458 /* initial implementaton using a linked list - todo hashtab */ 459 struct drm_prime_file_private { 460 struct list_head head; 461 #ifdef DUMBBELL_WIP 462 struct mutex lock; 463 #endif /* DUMBBELL_WIP */ 464 }; 465 466 /** File private data */ 467 struct drm_file { 468 int authenticated; 469 struct drm_device *dev; 470 int master; 471 pid_t pid; 472 uid_t uid; 473 drm_magic_t magic; 474 unsigned long ioctl_count; 475 struct list_head lhead; 476 struct kqinfo dkq; 477 478 /** Mapping of mm object handles to object pointers. */ 479 struct idr object_idr; 480 /** Lock for synchronization of access to object_idr. */ 481 struct lock table_lock; 482 483 void *driver_priv; 484 485 int is_master; 486 struct drm_master *masterp; 487 488 struct list_head fbs; 489 490 wait_queue_head_t event_wait; 491 struct list_head event_list; 492 int event_space; 493 494 struct drm_prime_file_private prime; 495 }; 496 497 /** 498 * Lock data. 499 */ 500 struct drm_lock_data { 501 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 502 /** Private of lock holder's file (NULL=kernel) */ 503 struct drm_file *file_priv; 504 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 505 unsigned long lock_time; /**< Time of last lock in jiffies */ 506 }; 507 508 /* This structure, in the struct drm_device, is always initialized while the 509 * device 510 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 511 * when set marks that no further bufs may be allocated until device teardown 512 * occurs (when the last open of the device has closed). The high/low 513 * watermarks of bufs are only touched by the X Server, and thus not 514 * concurrently accessed, so no locking is needed. 515 */ 516 typedef struct drm_device_dma { 517 518 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 519 int buf_count; /**< total number of buffers */ 520 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 521 int seg_count; 522 int page_count; /**< number of pages */ 523 unsigned long *pagelist; /**< page list */ 524 unsigned long byte_count; 525 enum { 526 _DRM_DMA_USE_AGP = 0x01, 527 _DRM_DMA_USE_SG = 0x02, 528 _DRM_DMA_USE_FB = 0x04, 529 _DRM_DMA_USE_PCI_RO = 0x08 530 } flags; 531 532 } drm_device_dma_t; 533 534 typedef struct drm_agp_mem { 535 void *handle; 536 unsigned long bound; /* address */ 537 int pages; 538 struct drm_agp_mem *prev; 539 struct drm_agp_mem *next; 540 } drm_agp_mem_t; 541 542 typedef struct drm_agp_head { 543 device_t agpdev; 544 struct agp_info agp_info; 545 const char *chipset; 546 drm_agp_mem_t *memory; 547 unsigned long mode; 548 int enabled; 549 int acquired; 550 unsigned long base; 551 int agp_mtrr; 552 int cant_use_aperture; 553 unsigned long page_mask; 554 } drm_agp_head_t; 555 556 typedef struct drm_sg_mem { 557 vm_offset_t vaddr; 558 vm_paddr_t *busaddr; 559 vm_pindex_t pages; 560 } drm_sg_mem_t; 561 562 /** 563 * Kernel side of a mapping 564 */ 565 struct drm_local_map { 566 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 567 unsigned long size; /**< Requested physical size (bytes) */ 568 enum drm_map_type type; /**< Type of memory to map */ 569 enum drm_map_flags flags; /**< Flags */ 570 void *handle; /**< User-space: "Handle" to pass to mmap() */ 571 /**< Kernel-space: kernel-virtual address */ 572 int mtrr; /**< MTRR slot used */ 573 }; 574 575 typedef struct drm_local_map drm_local_map_t; 576 577 /** 578 * Mappings list 579 */ 580 struct drm_map_list { 581 struct list_head head; /**< list head */ 582 struct drm_hash_item hash; 583 struct drm_local_map *map; /**< mapping */ 584 uint64_t user_token; 585 struct drm_master *master; 586 struct drm_mm_node *file_offset_node; /**< fake offset */ 587 }; 588 589 struct drm_vblank_info { 590 wait_queue_head_t queue; /* vblank wait queue */ 591 atomic_t count; /* number of VBLANK interrupts */ 592 /* (driver must alloc the right number of counters) */ 593 atomic_t refcount; /* number of users of vblank interrupts */ 594 u32 last; /* protected by dev->vbl_lock, used */ 595 /* for wraparound handling */ 596 int enabled; /* so we don't call enable more than */ 597 /* once per disable */ 598 int inmodeset; /* Display driver is setting mode */ 599 }; 600 601 /* location of GART table */ 602 #define DRM_ATI_GART_MAIN 1 603 #define DRM_ATI_GART_FB 2 604 605 #define DRM_ATI_GART_PCI 1 606 #define DRM_ATI_GART_PCIE 2 607 #define DRM_ATI_GART_IGP 3 608 609 struct drm_ati_pcigart_info { 610 int gart_table_location; 611 int gart_reg_if; 612 void *addr; 613 dma_addr_t bus_addr; 614 dma_addr_t table_mask; 615 dma_addr_t member_mask; 616 struct drm_dma_handle *table_handle; 617 drm_local_map_t mapping; 618 int table_size; 619 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 620 }; 621 622 /** 623 * GEM specific mm private for tracking GEM objects 624 */ 625 struct drm_gem_mm { 626 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 627 struct unrhdr *idxunr; 628 }; 629 630 struct drm_gem_object { 631 /** Reference count of this object */ 632 struct kref refcount; 633 634 /** Handle count of this object. Each handle also holds a reference */ 635 atomic_t handle_count; /* number of handles on this object */ 636 637 /** Related drm device */ 638 struct drm_device *dev; 639 640 /** File representing the shmem storage: filp in Linux parlance */ 641 vm_object_t vm_obj; 642 643 bool on_map; 644 struct drm_hash_item map_list; 645 646 /** 647 * Size of the object, in bytes. Immutable over the object's 648 * lifetime. 649 */ 650 size_t size; 651 652 /** 653 * Global name for this object, starts at 1. 0 means unnamed. 654 * Access is covered by the object_name_lock in the related drm_device 655 */ 656 int name; 657 658 /** 659 * Memory domains. These monitor which caches contain read/write data 660 * related to the object. When transitioning from one set of domains 661 * to another, the driver is called to ensure that caches are suitably 662 * flushed and invalidated 663 */ 664 uint32_t read_domains; 665 uint32_t write_domain; 666 667 /** 668 * While validating an exec operation, the 669 * new read/write domain values are computed here. 670 * They will be transferred to the above values 671 * at the point that any cache flushing occurs 672 */ 673 uint32_t pending_read_domains; 674 uint32_t pending_write_domain; 675 676 void *driver_private; 677 678 #ifdef DUMBBELL_WIP 679 /* dma buf exported from this GEM object */ 680 struct dma_buf *export_dma_buf; 681 682 /* dma buf attachment backing this object */ 683 struct dma_buf_attachment *import_attach; 684 #endif /* DUMBBELL_WIP */ 685 }; 686 687 #include "drm_crtc.h" 688 689 /* per-master structure */ 690 struct drm_master { 691 692 struct kref refcount; /* refcount for this master */ 693 694 struct list_head head; /**< each minor contains a list of masters */ 695 struct drm_minor *minor; /**< link back to minor we are a master for */ 696 697 char *unique; /**< Unique identifier: e.g., busid */ 698 int unique_len; /**< Length of unique field */ 699 int unique_size; /**< amount allocated */ 700 701 int blocked; /**< Blocked due to VC switch? */ 702 703 /** \name Authentication */ 704 /*@{ */ 705 struct drm_open_hash magiclist; 706 struct list_head magicfree; 707 /*@} */ 708 709 struct drm_lock_data lock; /**< Information on hardware lock */ 710 711 void *driver_priv; /**< Private structure for driver to use */ 712 }; 713 714 /* Size of ringbuffer for vblank timestamps. Just double-buffer 715 * in initial implementation. 716 */ 717 #define DRM_VBLANKTIME_RBSIZE 2 718 719 /* Flags and return codes for get_vblank_timestamp() driver function. */ 720 #define DRM_CALLED_FROM_VBLIRQ 1 721 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 722 #define DRM_VBLANKTIME_INVBL (1 << 1) 723 724 /* get_scanout_position() return flags */ 725 #define DRM_SCANOUTPOS_VALID (1 << 0) 726 #define DRM_SCANOUTPOS_INVBL (1 << 1) 727 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 728 729 #ifndef DMA_BIT_MASK 730 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 731 #endif 732 733 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 734 735 struct drm_driver { 736 int (*load)(struct drm_device *, unsigned long flags); 737 int (*use_msi)(struct drm_device *, unsigned long flags); 738 int (*firstopen)(struct drm_device *); 739 int (*open)(struct drm_device *, struct drm_file *); 740 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 741 void (*postclose)(struct drm_device *, struct drm_file *); 742 void (*lastclose)(struct drm_device *); 743 int (*unload)(struct drm_device *); 744 void (*reclaim_buffers_locked)(struct drm_device *, 745 struct drm_file *file_priv); 746 int (*dma_ioctl)(struct drm_device *dev, void *data, 747 struct drm_file *file_priv); 748 void (*dma_ready)(struct drm_device *); 749 int (*dma_quiescent)(struct drm_device *); 750 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 751 enum drm_lock_flags flags); 752 int (*dma_flush_unblock)(struct drm_device *, int context, 753 enum drm_lock_flags flags); 754 int (*context_ctor)(struct drm_device *dev, int context); 755 int (*context_dtor)(struct drm_device *dev, int context); 756 int (*kernel_context_switch)(struct drm_device *dev, int old, 757 int new); 758 int (*kernel_context_switch_unlock)(struct drm_device *dev); 759 void (*irq_preinstall)(struct drm_device *dev); 760 int (*irq_postinstall)(struct drm_device *dev); 761 void (*irq_uninstall)(struct drm_device *dev); 762 void (*irq_handler)(DRM_IRQ_ARGS); 763 764 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 765 int (*enable_vblank)(struct drm_device *dev, int crtc); 766 void (*disable_vblank)(struct drm_device *dev, int crtc); 767 int (*get_scanout_position)(struct drm_device *dev, int crtc, 768 int *vpos, int *hpos); 769 770 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 771 int *max_error, struct timeval *vblank_time, 772 unsigned flags); 773 774 int (*gem_init_object)(struct drm_gem_object *obj); 775 void (*gem_free_object)(struct drm_gem_object *obj); 776 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 777 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 778 779 struct cdev_pager_ops *gem_pager_ops; 780 781 int (*dumb_create)(struct drm_file *file_priv, 782 struct drm_device *dev, struct drm_mode_create_dumb *args); 783 int (*dumb_map_offset)(struct drm_file *file_priv, 784 struct drm_device *dev, uint32_t handle, uint64_t *offset); 785 int (*dumb_destroy)(struct drm_file *file_priv, 786 struct drm_device *dev, uint32_t handle); 787 788 int (*sysctl_init)(struct drm_device *dev, 789 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 790 void (*sysctl_cleanup)(struct drm_device *dev); 791 792 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 793 794 /** 795 * Called by \c drm_device_is_agp. Typically used to determine if a 796 * card is really attached to AGP or not. 797 * 798 * \param dev DRM device handle 799 * 800 * \returns 801 * One of three values is returned depending on whether or not the 802 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 803 * (return of 1), or may or may not be AGP (return of 2). 804 */ 805 int (*device_is_agp) (struct drm_device * dev); 806 807 drm_ioctl_desc_t *ioctls; 808 #ifdef COMPAT_FREEBSD32 809 drm_ioctl_desc_t *compat_ioctls; 810 int *compat_ioctls_nr; 811 #endif 812 813 int buf_priv_size; 814 815 int major; 816 int minor; 817 int patchlevel; 818 const char *name; /* Simple driver name */ 819 const char *desc; /* Longer driver name */ 820 const char *date; /* Date of last major changes. */ 821 822 u32 driver_features; 823 int num_ioctls; 824 }; 825 826 /** 827 * DRM minor structure. This structure represents a drm minor number. 828 */ 829 struct drm_minor { 830 int index; /**< Minor device number */ 831 int type; /**< Control or render */ 832 device_t kdev; /**< OS device */ 833 struct drm_device *dev; 834 835 struct drm_master *master; /* currently active master for this node */ 836 struct list_head master_list; 837 struct drm_mode_group mode_group; 838 }; 839 840 /* mode specified on the command line */ 841 struct drm_cmdline_mode { 842 bool specified; 843 bool refresh_specified; 844 bool bpp_specified; 845 int xres, yres; 846 int bpp; 847 int refresh; 848 bool rb; 849 bool interlace; 850 bool cvt; 851 bool margins; 852 enum drm_connector_force force; 853 }; 854 855 856 struct drm_pending_vblank_event { 857 struct drm_pending_event base; 858 int pipe; 859 struct drm_event_vblank event; 860 }; 861 862 /* Length for the array of resource pointers for drm_get_resource_*. */ 863 #define DRM_MAX_PCI_RESOURCE 6 864 865 /** 866 * DRM device structure. This structure represent a complete card that 867 * may contain multiple heads. 868 */ 869 struct drm_device { 870 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 871 872 uint16_t pci_device; /* PCI device id */ 873 uint16_t pci_vendor; /* PCI vendor id */ 874 uint16_t pci_subdevice; /* PCI subsystem device id */ 875 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 876 877 char *unique; /* Unique identifier: e.g., busid */ 878 int unique_len; /* Length of unique field */ 879 struct cdev *devnode; /* Device number for mknod */ 880 int if_version; /* Highest interface version set */ 881 882 int flags; /* Flags to open(2) */ 883 884 /* Locks */ 885 struct spinlock dma_lock; /* protects dev->dma */ 886 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 887 struct lock dev_lock; /* protects everything else */ 888 struct lock dev_struct_lock; 889 890 /** \name Locks */ 891 /*@{ */ 892 struct lock struct_mutex; /**< For others */ 893 /*@} */ 894 895 /** \name Usage Counters */ 896 /*@{ */ 897 int open_count; /* Outstanding files open */ 898 int buf_use; /* Buffers in use -- cannot alloc */ 899 /*@} */ 900 901 902 /** \name Performance counters */ 903 /*@{ */ 904 unsigned long counters; 905 enum drm_stat_type types[15]; 906 atomic_t counts[15]; 907 /*@} */ 908 909 /* Authentication */ 910 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 911 912 struct list_head filelist; 913 914 /** \name Memory management */ 915 /*@{ */ 916 struct list_head maplist; /**< Linked list of regions */ 917 int map_count; /**< Number of mappable regions */ 918 struct drm_open_hash map_hash; /**< User token hash table for maps */ 919 920 drm_local_map_t **context_sareas; 921 int max_context; 922 923 struct drm_lock_data lock; /* Information on hardware lock */ 924 925 /* DMA queues (contexts) */ 926 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 927 928 /* Context support */ 929 int irq; /* Interrupt used by board */ 930 int msi_enabled; /* MSI enabled */ 931 int irqrid; /* Interrupt used by board */ 932 struct resource *irqr; /* Resource for interrupt used by board */ 933 void *irqh; /* Handle from bus_setup_intr */ 934 935 /* Storage of resource pointers for drm_get_resource_* */ 936 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 937 int pcirid[DRM_MAX_PCI_RESOURCE]; 938 939 int pci_domain; 940 int pci_bus; 941 int pci_slot; 942 int pci_func; 943 944 /** \name Context support */ 945 /*@{ */ 946 int irq_enabled; /**< True if irq handler is enabled */ 947 __volatile__ long context_flag; /**< Context swapping flag */ 948 int last_context; /**< Last current context */ 949 /*@} */ 950 951 int num_crtcs; 952 953 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 954 955 /* Sysctl support */ 956 struct drm_sysctl_info *sysctl; 957 int sysctl_node_idx; 958 959 drm_agp_head_t *agp; 960 961 struct device *dev; /**< Device structure */ 962 963 drm_sg_mem_t *sg; /* Scatter gather memory */ 964 unsigned long *ctx_bitmap; 965 void *dev_private; 966 967 void *drm_ttm_bdev; 968 969 /* 970 * At load time, disabling the vblank interrupt won't be allowed since 971 * old clients may not call the modeset ioctl and therefore misbehave. 972 * Once the modeset ioctl *has* been called though, we can safely 973 * disable them when unused. 974 */ 975 int vblank_disable_allowed; 976 977 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */ 978 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 979 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 980 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 981 struct lock vbl_lock; 982 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 983 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 984 /* for wraparound handling */ 985 int *vblank_enabled; /* so we don't call enable more than 986 once per disable */ 987 int *vblank_inmodeset; /* Display driver is setting mode */ 988 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 989 struct timer_list vblank_disable_timer; 990 991 u32 max_vblank_count; /**< size of vblank counter register */ 992 993 /** 994 * List of events 995 */ 996 struct list_head vblank_event_list; 997 struct lock event_lock; 998 999 struct drm_driver *driver; 1000 struct drm_local_map *agp_buffer_map; 1001 unsigned int agp_buffer_token; 1002 struct drm_minor *control; /**< Control node for card */ 1003 struct drm_minor *primary; /**< render type primary screen head */ 1004 1005 struct drm_mode_config mode_config; /**< Current mode config */ 1006 1007 /** \name GEM information */ 1008 /*@{ */ 1009 struct lock object_name_lock; 1010 struct idr object_name_idr; 1011 /*@} */ 1012 void *mm_private; 1013 1014 void *sysctl_private; 1015 char busid_str[128]; 1016 int modesetting; 1017 1018 int switch_power_state; 1019 }; 1020 1021 #define DRM_SWITCH_POWER_ON 0 1022 #define DRM_SWITCH_POWER_OFF 1 1023 #define DRM_SWITCH_POWER_CHANGING 2 1024 1025 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1026 int feature) 1027 { 1028 return ((dev->driver->driver_features & feature) ? 1 : 0); 1029 } 1030 1031 #if __OS_HAS_AGP 1032 static inline int drm_core_has_AGP(struct drm_device *dev) 1033 { 1034 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1035 } 1036 #else 1037 #define drm_core_has_AGP(dev) (0) 1038 #endif 1039 1040 enum dmi_field { 1041 DMI_NONE, 1042 DMI_BIOS_VENDOR, 1043 DMI_BIOS_VERSION, 1044 DMI_BIOS_DATE, 1045 DMI_SYS_VENDOR, 1046 DMI_PRODUCT_NAME, 1047 DMI_PRODUCT_VERSION, 1048 DMI_PRODUCT_SERIAL, 1049 DMI_PRODUCT_UUID, 1050 DMI_BOARD_VENDOR, 1051 DMI_BOARD_NAME, 1052 DMI_BOARD_VERSION, 1053 DMI_BOARD_SERIAL, 1054 DMI_BOARD_ASSET_TAG, 1055 DMI_CHASSIS_VENDOR, 1056 DMI_CHASSIS_TYPE, 1057 DMI_CHASSIS_VERSION, 1058 DMI_CHASSIS_SERIAL, 1059 DMI_CHASSIS_ASSET_TAG, 1060 DMI_STRING_MAX, 1061 }; 1062 1063 struct dmi_strmatch { 1064 unsigned char slot; 1065 char substr[79]; 1066 }; 1067 1068 struct dmi_system_id { 1069 int (*callback)(const struct dmi_system_id *); 1070 const char *ident; 1071 struct dmi_strmatch matches[4]; 1072 }; 1073 #define DMI_MATCH(a, b) {(a), (b)} 1074 bool dmi_check_system(const struct dmi_system_id *); 1075 1076 extern int drm_notyet_flag; 1077 extern int drm_debug; 1078 1079 extern unsigned int drm_vblank_offdelay; 1080 extern unsigned int drm_timestamp_precision; 1081 extern unsigned int drm_timestamp_monotonic; 1082 1083 /* Device setup support (drm_drv.c) */ 1084 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1085 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1086 int drm_create_cdevs(device_t kdev); 1087 int drm_detach(device_t kdev); 1088 d_ioctl_t drm_ioctl; 1089 d_open_t drm_open; 1090 d_close_t drm_close; 1091 d_read_t drm_read; 1092 d_kqfilter_t drm_kqfilter; 1093 d_mmap_t drm_mmap; 1094 d_mmap_single_t drm_mmap_single; 1095 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1096 1097 void drm_cdevpriv_dtor(void *cd); 1098 1099 void drm_event_wakeup(struct drm_pending_event *e); 1100 1101 int drm_add_busid_modesetting(struct drm_device *dev, 1102 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1103 1104 /* File operations helpers (drm_fops.c) */ 1105 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1106 DRM_STRUCTPROC *p, 1107 struct drm_device *dev, 1108 struct file *fp); 1109 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1110 DRM_STRUCTPROC *p); 1111 1112 #ifdef DUMBBELL_WIP 1113 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1114 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1115 int *prime_fd); 1116 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1117 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1118 1119 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1120 struct drm_file *file_priv); 1121 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1122 struct drm_file *file_priv); 1123 1124 #ifdef DUMBBELL_WIP 1125 /* 1126 * See drm_prime.c 1127 * -- dumbbell@ 1128 */ 1129 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1130 dma_addr_t *addrs, int max_pages); 1131 #endif /* DUMBBELL_WIP */ 1132 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1133 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1134 1135 1136 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1137 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1138 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1139 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1140 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1141 1142 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1143 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1144 struct drm_gem_object **obj); 1145 #endif /* DUMBBELL_WIP */ 1146 1147 /* Memory management support (drm_memory.c) */ 1148 void drm_mem_init(void); 1149 void drm_mem_uninit(void); 1150 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1151 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1152 void drm_ioremapfree(drm_local_map_t *map); 1153 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1154 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1155 1156 int drm_ctxbitmap_init(struct drm_device *dev); 1157 void drm_ctxbitmap_cleanup(struct drm_device *dev); 1158 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1159 int drm_ctxbitmap_next(struct drm_device *dev); 1160 1161 /* Locking IOCTL support (drm_lock.c) */ 1162 int drm_lock_take(struct drm_lock_data *lock_data, 1163 unsigned int context); 1164 int drm_lock_transfer(struct drm_lock_data *lock_data, 1165 unsigned int context); 1166 int drm_lock_free(struct drm_lock_data *lock_data, 1167 unsigned int context); 1168 1169 /* 1170 * These are exported to drivers so that they can implement fencing using 1171 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1172 */ 1173 1174 unsigned long drm_get_resource_start(struct drm_device *dev, 1175 unsigned int resource); 1176 unsigned long drm_get_resource_len(struct drm_device *dev, 1177 unsigned int resource); 1178 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1179 int drm_order(unsigned long size); 1180 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1181 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1182 extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1183 unsigned int size, enum drm_map_type type, 1184 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1185 1186 /* DMA support (drm_dma.c) */ 1187 int drm_dma_setup(struct drm_device *dev); 1188 void drm_dma_takedown(struct drm_device *dev); 1189 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1190 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1191 #define drm_core_reclaim_buffers drm_reclaim_buffers 1192 1193 /* IRQ support (drm_irq.h) */ 1194 int drm_irq_install(struct drm_device *dev); 1195 int drm_irq_uninstall(struct drm_device *dev); 1196 void drm_driver_irq_preinstall(struct drm_device *dev); 1197 void drm_driver_irq_postinstall(struct drm_device *dev); 1198 void drm_driver_irq_uninstall(struct drm_device *dev); 1199 1200 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1201 void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1202 int drm_modeset_ctl(struct drm_device *dev, void *data, 1203 struct drm_file *file_priv); 1204 1205 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1206 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1207 struct drm_file *filp); 1208 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1209 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1210 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1211 struct timeval *vblanktime); 1212 extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1213 struct drm_pending_vblank_event *e); 1214 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1215 void drm_handle_vblank_events(struct drm_device *dev, int crtc); 1216 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1217 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1218 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1219 extern void drm_vblank_cleanup(struct drm_device *dev); 1220 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1221 struct timeval *tvblank, unsigned flags); 1222 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1223 int crtc, int *max_error, 1224 struct timeval *vblank_time, 1225 unsigned flags, 1226 struct drm_crtc *refcrtc); 1227 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1228 1229 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1230 int drm_device_is_agp(struct drm_device *dev); 1231 int drm_device_is_pcie(struct drm_device *dev); 1232 drm_agp_head_t *drm_agp_init(void); 1233 int drm_agp_acquire(struct drm_device *dev); 1234 int drm_agp_release(struct drm_device *dev); 1235 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 1236 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1237 void *drm_agp_allocate_memory(size_t pages, u32 type); 1238 int drm_agp_free_memory(void *handle); 1239 int drm_agp_bind_memory(void *handle, off_t start); 1240 int drm_agp_unbind_memory(void *handle); 1241 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1242 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1243 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1244 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1245 1246 /* Scatter Gather Support (drm_scatter.c) */ 1247 void drm_sg_cleanup(drm_sg_mem_t *entry); 1248 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1249 1250 /* sysctl support (drm_sysctl.h) */ 1251 extern int drm_sysctl_init(struct drm_device *dev); 1252 extern int drm_sysctl_cleanup(struct drm_device *dev); 1253 1254 /* ATI PCIGART support (ati_pcigart.c) */ 1255 int drm_ati_pcigart_init(struct drm_device *dev, 1256 struct drm_ati_pcigart_info *gart_info); 1257 int drm_ati_pcigart_cleanup(struct drm_device *dev, 1258 struct drm_ati_pcigart_info *gart_info); 1259 1260 /* Cache management (drm_memory.c) */ 1261 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1262 1263 /* Locking IOCTL support (drm_drv.c) */ 1264 int drm_lock(struct drm_device *dev, void *data, 1265 struct drm_file *file_priv); 1266 int drm_unlock(struct drm_device *dev, void *data, 1267 struct drm_file *file_priv); 1268 int drm_version(struct drm_device *dev, void *data, 1269 struct drm_file *file_priv); 1270 int drm_setversion(struct drm_device *dev, void *data, 1271 struct drm_file *file_priv); 1272 1273 /* Misc. IOCTL support (drm_ioctl.c) */ 1274 int drm_irq_by_busid(struct drm_device *dev, void *data, 1275 struct drm_file *file_priv); 1276 int drm_getunique(struct drm_device *dev, void *data, 1277 struct drm_file *file_priv); 1278 int drm_setunique(struct drm_device *dev, void *data, 1279 struct drm_file *file_priv); 1280 int drm_getmap(struct drm_device *dev, void *data, 1281 struct drm_file *file_priv); 1282 int drm_getclient(struct drm_device *dev, void *data, 1283 struct drm_file *file_priv); 1284 int drm_getstats(struct drm_device *dev, void *data, 1285 struct drm_file *file_priv); 1286 int drm_getcap(struct drm_device *dev, void *data, 1287 struct drm_file *file_priv); 1288 int drm_noop(struct drm_device *dev, void *data, 1289 struct drm_file *file_priv); 1290 1291 /* Context IOCTL support (drm_context.c) */ 1292 int drm_resctx(struct drm_device *dev, void *data, 1293 struct drm_file *file_priv); 1294 int drm_addctx(struct drm_device *dev, void *data, 1295 struct drm_file *file_priv); 1296 int drm_modctx(struct drm_device *dev, void *data, 1297 struct drm_file *file_priv); 1298 int drm_getctx(struct drm_device *dev, void *data, 1299 struct drm_file *file_priv); 1300 int drm_switchctx(struct drm_device *dev, void *data, 1301 struct drm_file *file_priv); 1302 int drm_newctx(struct drm_device *dev, void *data, 1303 struct drm_file *file_priv); 1304 int drm_rmctx(struct drm_device *dev, void *data, 1305 struct drm_file *file_priv); 1306 int drm_setsareactx(struct drm_device *dev, void *data, 1307 struct drm_file *file_priv); 1308 int drm_getsareactx(struct drm_device *dev, void *data, 1309 struct drm_file *file_priv); 1310 1311 /* Authentication IOCTL support (drm_auth.c) */ 1312 int drm_getmagic(struct drm_device *dev, void *data, 1313 struct drm_file *file_priv); 1314 int drm_authmagic(struct drm_device *dev, void *data, 1315 struct drm_file *file_priv); 1316 1317 /* Buffer management support (drm_bufs.c) */ 1318 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1319 struct drm_file *file_priv); 1320 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1321 struct drm_file *file_priv); 1322 int drm_addbufs(struct drm_device *dev, void *data, 1323 struct drm_file *file_priv); 1324 int drm_infobufs(struct drm_device *dev, void *data, 1325 struct drm_file *file_priv); 1326 int drm_markbufs(struct drm_device *dev, void *data, 1327 struct drm_file *file_priv); 1328 int drm_freebufs(struct drm_device *dev, void *data, 1329 struct drm_file *file_priv); 1330 int drm_mapbufs(struct drm_device *dev, void *data, 1331 struct drm_file *file_priv); 1332 1333 /* DMA support (drm_dma.c) */ 1334 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1335 1336 /* IRQ support (drm_irq.c) */ 1337 int drm_control(struct drm_device *dev, void *data, 1338 struct drm_file *file_priv); 1339 1340 /* AGP/GART support (drm_agpsupport.c) */ 1341 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1342 struct drm_file *file_priv); 1343 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1344 struct drm_file *file_priv); 1345 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1346 struct drm_file *file_priv); 1347 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1348 struct drm_file *file_priv); 1349 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1350 struct drm_file *file_priv); 1351 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1352 struct drm_file *file_priv); 1353 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1354 struct drm_file *file_priv); 1355 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1356 struct drm_file *file_priv); 1357 1358 /* Stub support (drm_stub.h) */ 1359 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1360 struct drm_file *file_priv); 1361 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1362 struct drm_file *file_priv); 1363 1364 /* Scatter Gather Support (drm_scatter.c) */ 1365 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1366 struct drm_file *file_priv); 1367 int drm_sg_free(struct drm_device *dev, void *data, 1368 struct drm_file *file_priv); 1369 1370 /* consistent PCI memory functions (drm_pci.c) */ 1371 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1372 size_t align, dma_addr_t maxaddr); 1373 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1374 1375 /* sysfs support (drm_sysfs.c) */ 1376 extern char *drm_get_connector_status_name(enum drm_connector_status status); 1377 1378 /* Graphics Execution Manager library functions (drm_gem.c) */ 1379 int drm_gem_init(struct drm_device *dev); 1380 void drm_gem_destroy(struct drm_device *dev); 1381 void drm_gem_object_release(struct drm_gem_object *obj); 1382 void drm_gem_object_free(struct kref *kref); 1383 1384 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1385 struct drm_file *file_priv); 1386 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1387 struct drm_file *file_priv); 1388 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1389 struct drm_file *file_priv); 1390 void drm_gem_object_handle_free(struct drm_gem_object *obj); 1391 1392 #include <drm/drm_global.h> 1393 1394 static inline void 1395 drm_gem_object_reference(struct drm_gem_object *obj) 1396 { 1397 kref_get(&obj->refcount); 1398 } 1399 1400 static inline void 1401 drm_gem_object_unreference(struct drm_gem_object *obj) 1402 { 1403 if (obj != NULL) 1404 kref_put(&obj->refcount, drm_gem_object_free); 1405 } 1406 1407 static inline void 1408 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1409 { 1410 if (obj != NULL) { 1411 struct drm_device *dev = obj->dev; 1412 DRM_LOCK(dev); 1413 kref_put(&obj->refcount, drm_gem_object_free); 1414 DRM_UNLOCK(dev); 1415 } 1416 } 1417 1418 int drm_gem_handle_create(struct drm_file *file_priv, 1419 struct drm_gem_object *obj, 1420 u32 *handlep); 1421 int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1422 1423 static inline void 1424 drm_gem_object_handle_reference(struct drm_gem_object *obj) 1425 { 1426 drm_gem_object_reference(obj); 1427 atomic_inc(&obj->handle_count); 1428 } 1429 1430 static inline void 1431 drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1432 { 1433 if (obj == NULL) 1434 return; 1435 1436 if (atomic_read(&obj->handle_count) == 0) 1437 return; 1438 /* 1439 * Must bump handle count first as this may be the last 1440 * ref, in which case the object would disappear before we 1441 * checked for a name 1442 */ 1443 if (atomic_dec_and_test(&obj->handle_count)) 1444 drm_gem_object_handle_free(obj); 1445 drm_gem_object_unreference(obj); 1446 } 1447 1448 static inline void 1449 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) 1450 { 1451 if (obj == NULL) 1452 return; 1453 1454 if (atomic_read(&obj->handle_count) == 0) 1455 return; 1456 1457 /* 1458 * Must bump handle count first as this may be the last 1459 * ref, in which case the object would disappear before we 1460 * checked for a name 1461 */ 1462 1463 if (atomic_dec_and_test(&obj->handle_count)) 1464 drm_gem_object_handle_free(obj); 1465 drm_gem_object_unreference_unlocked(obj); 1466 } 1467 1468 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, 1469 size_t size); 1470 int drm_gem_private_object_init(struct drm_device *dev, 1471 struct drm_gem_object *obj, size_t size); 1472 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1473 size_t size); 1474 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1475 struct drm_file *file_priv, uint32_t handle); 1476 1477 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1478 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1479 1480 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1481 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1482 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1483 vm_size_t size, struct vm_object **obj_res, int nprot); 1484 void drm_gem_pager_dtr(void *obj); 1485 1486 struct ttm_bo_device; 1487 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1488 vm_size_t size, struct vm_object **obj_res, int nprot); 1489 struct ttm_buffer_object; 1490 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1491 1492 void drm_device_lock_mtx(struct drm_device *dev); 1493 void drm_device_unlock_mtx(struct drm_device *dev); 1494 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1495 const char *msg, int timeout); 1496 void drm_device_assert_mtx_locked(struct drm_device *dev); 1497 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1498 1499 void drm_device_lock_struct(struct drm_device *dev); 1500 void drm_device_unlock_struct(struct drm_device *dev); 1501 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1502 const char *msg, int timeout); 1503 void drm_device_assert_struct_locked(struct drm_device *dev); 1504 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1505 1506 void drm_compat_locking_init(struct drm_device *dev); 1507 void drm_sleep_locking_init(struct drm_device *dev); 1508 1509 /* drm_modes.c */ 1510 bool drm_mode_parse_command_line_for_connector(const char *mode_option, 1511 struct drm_connector *connector, struct drm_cmdline_mode *mode); 1512 struct drm_display_mode *drm_mode_create_from_cmdline_mode( 1513 struct drm_device *dev, struct drm_cmdline_mode *cmd); 1514 1515 /* Inline replacements for drm_alloc and friends */ 1516 static __inline__ void * 1517 drm_alloc(size_t size, struct malloc_type *area) 1518 { 1519 return kmalloc(size, area, M_NOWAIT); 1520 } 1521 1522 static __inline__ void * 1523 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1524 { 1525 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO); 1526 } 1527 1528 static __inline__ void * 1529 drm_realloc(void *oldpt, size_t oldsize, size_t size, 1530 struct malloc_type *area) 1531 { 1532 void *res; 1533 res = krealloc(oldpt, size, area, M_NOWAIT); 1534 if (res == NULL && oldpt != NULL) 1535 kfree(oldpt,area); 1536 return res; 1537 } 1538 1539 static __inline__ void 1540 drm_free(void *pt, struct malloc_type *area) 1541 { 1542 if (pt != NULL) 1543 kfree(pt, area); 1544 } 1545 1546 /* Inline replacements for DRM_IOREMAP macros */ 1547 static __inline__ void 1548 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1549 { 1550 map->handle = drm_ioremap_wc(dev, map); 1551 } 1552 static __inline__ void 1553 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1554 { 1555 map->handle = drm_ioremap(dev, map); 1556 } 1557 static __inline__ void 1558 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1559 { 1560 if ( map->handle && map->size ) 1561 drm_ioremapfree(map); 1562 } 1563 1564 static __inline__ struct drm_local_map * 1565 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1566 { 1567 struct drm_map_list *_entry; 1568 1569 list_for_each_entry(_entry, &dev->maplist, head) { 1570 if (offset == (unsigned long)_entry->map->handle) 1571 return _entry->map; 1572 } 1573 return NULL; 1574 } 1575 1576 static __inline__ void drm_core_dropmap(struct drm_map *map) 1577 { 1578 } 1579 1580 #include <drm/drm_mem_util.h> 1581 1582 /* FreeBSD compatibility macros */ 1583 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1584 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1585 1586 #define DRM_PCIE_SPEED_25 1 1587 #define DRM_PCIE_SPEED_50 2 1588 #define DRM_PCIE_SPEED_80 4 1589 1590 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1591 1592 #define drm_can_sleep() (DRM_HZ & 1) 1593 1594 #endif /* __KERNEL__ */ 1595 #endif /* _DRM_P_H_ */ 1596