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 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #ifndef _DRM_P_H_ 39 #define _DRM_P_H_ 40 41 #if defined(_KERNEL) || defined(__KERNEL__) 42 43 #include <sys/param.h> 44 #include <sys/queue.h> 45 #include <sys/malloc.h> 46 #include <sys/kernel.h> 47 #include <sys/ktr.h> 48 #include <sys/module.h> 49 #include <sys/systm.h> 50 #include <sys/conf.h> 51 #include <sys/sglist.h> 52 #include <sys/stat.h> 53 #include <sys/priv.h> 54 #include <sys/proc.h> 55 #include <sys/lock.h> 56 #include <sys/fcntl.h> 57 #include <sys/uio.h> 58 #include <sys/filio.h> 59 #include <sys/rwlock.h> 60 #include <sys/selinfo.h> 61 #include <sys/sysctl.h> 62 #include <sys/bus.h> 63 #include <sys/queue.h> 64 #include <sys/signalvar.h> 65 #include <sys/poll.h> 66 #include <sys/sbuf.h> 67 #include <sys/taskqueue.h> 68 #include <sys/tree.h> 69 #include <vm/vm.h> 70 #include <vm/pmap.h> 71 #include <vm/vm_extern.h> 72 #include <vm/vm_kern.h> 73 #include <vm/vm_map.h> 74 #include <vm/vm_object.h> 75 #include <vm/vm_page.h> 76 #include <vm/vm_pager.h> 77 #include <vm/vm_param.h> 78 #include <vm/vm_phys.h> 79 #include <machine/param.h> 80 #include <machine/pmap.h> 81 #include <machine/bus.h> 82 #include <machine/resource.h> 83 #if defined(__i386__) || defined(__amd64__) 84 #include <machine/specialreg.h> 85 #endif 86 #include <machine/sysarch.h> 87 #include <sys/endian.h> 88 #include <sys/mman.h> 89 #include <sys/rman.h> 90 #include <sys/memrange.h> 91 #include <dev/agp/agpvar.h> 92 #include <sys/agpio.h> 93 #include <sys/mutex.h> 94 #include <dev/pci/pcivar.h> 95 #include <dev/pci/pcireg.h> 96 #include <sys/selinfo.h> 97 #include <sys/bus.h> 98 99 #include <dev/drm2/drm.h> 100 #include <dev/drm2/drm_sarea.h> 101 102 #include <dev/drm2/drm_atomic.h> 103 #include <dev/drm2/drm_internal.h> 104 #include <dev/drm2/drm_linux_list.h> 105 #include <dev/drm2/drm_gem_names.h> 106 107 struct drm_file; 108 struct drm_device; 109 110 #include <dev/drm2/drm_os_freebsd.h> 111 #include <dev/drm2/drm_hashtab.h> 112 #include <dev/drm2/drm_mm.h> 113 114 #include "opt_compat.h" 115 #include "opt_drm.h" 116 #include "opt_syscons.h" 117 #ifdef DRM_DEBUG 118 #undef DRM_DEBUG 119 #define DRM_DEBUG_DEFAULT_ON 1 120 #endif /* DRM_DEBUG */ 121 122 #define DRM_DEBUGBITS_DEBUG 0x1 123 #define DRM_DEBUGBITS_KMS 0x2 124 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 125 126 #undef DRM_LINUX 127 #define DRM_LINUX 0 128 129 /***********************************************************************/ 130 /** \name DRM template customization defaults */ 131 /*@{*/ 132 133 /* driver capabilities and requirements mask */ 134 #define DRIVER_USE_AGP 0x1 135 #define DRIVER_REQUIRE_AGP 0x2 136 #define DRIVER_USE_MTRR 0x4 137 #define DRIVER_PCI_DMA 0x8 138 #define DRIVER_SG 0x10 139 #define DRIVER_HAVE_DMA 0x20 140 #define DRIVER_HAVE_IRQ 0x40 141 #define DRIVER_IRQ_SHARED 0x80 142 #define DRIVER_IRQ_VBL 0x100 143 #define DRIVER_DMA_QUEUE 0x200 144 #define DRIVER_FB_DMA 0x400 145 #define DRIVER_IRQ_VBL2 0x800 146 #define DRIVER_GEM 0x1000 147 #define DRIVER_MODESET 0x2000 148 #define DRIVER_PRIME 0x4000 149 #define DRIVER_LOCKLESS_IRQ 0x8000 150 151 152 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 153 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 154 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 155 156 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 157 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 158 #define DRM_GEM_MAX_IDX 0x3fffff 159 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 160 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 161 #define DRM_GEM_MAPPING_MAPOFF(o) \ 162 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 163 164 MALLOC_DECLARE(DRM_MEM_DMA); 165 MALLOC_DECLARE(DRM_MEM_SAREA); 166 MALLOC_DECLARE(DRM_MEM_DRIVER); 167 MALLOC_DECLARE(DRM_MEM_MAGIC); 168 MALLOC_DECLARE(DRM_MEM_IOCTLS); 169 MALLOC_DECLARE(DRM_MEM_MAPS); 170 MALLOC_DECLARE(DRM_MEM_BUFS); 171 MALLOC_DECLARE(DRM_MEM_SEGS); 172 MALLOC_DECLARE(DRM_MEM_PAGES); 173 MALLOC_DECLARE(DRM_MEM_FILES); 174 MALLOC_DECLARE(DRM_MEM_QUEUES); 175 MALLOC_DECLARE(DRM_MEM_CMDS); 176 MALLOC_DECLARE(DRM_MEM_MAPPINGS); 177 MALLOC_DECLARE(DRM_MEM_BUFLISTS); 178 MALLOC_DECLARE(DRM_MEM_AGPLISTS); 179 MALLOC_DECLARE(DRM_MEM_CTXBITMAP); 180 MALLOC_DECLARE(DRM_MEM_SGLISTS); 181 MALLOC_DECLARE(DRM_MEM_DRAWABLE); 182 MALLOC_DECLARE(DRM_MEM_MM); 183 MALLOC_DECLARE(DRM_MEM_HASHTAB); 184 MALLOC_DECLARE(DRM_MEM_KMS); 185 186 SYSCTL_DECL(_hw_drm); 187 188 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 189 190 /***********************************************************************/ 191 /** \name Internal types and structures */ 192 /*@{*/ 193 194 #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 195 #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 196 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 197 198 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 199 200 #define __OS_HAS_AGP 1 201 202 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 203 #define DRM_DEV_UID 0 204 #define DRM_DEV_GID 0 205 206 #define wait_queue_head_t atomic_t 207 #define DRM_WAKEUP(w) wakeup((void *)w) 208 #define DRM_WAKEUP_INT(w) wakeup(w) 209 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 210 211 #define DRM_CURPROC curthread 212 #define DRM_STRUCTPROC struct thread 213 #define DRM_SPINTYPE struct mtx 214 #define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF) 215 #define DRM_SPINUNINIT(l) mtx_destroy(l) 216 #define DRM_SPINLOCK(l) mtx_lock(l) 217 #define DRM_SPINUNLOCK(u) mtx_unlock(u) 218 #define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \ 219 mtx_lock(l); \ 220 (void)irqflags; \ 221 } while (0) 222 #define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u) 223 #define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 224 #define DRM_CURRENTPID curthread->td_proc->p_pid 225 #define DRM_LOCK(dev) sx_xlock(&(dev)->dev_struct_lock) 226 #define DRM_UNLOCK(dev) sx_xunlock(&(dev)->dev_struct_lock) 227 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 228 (sx_sleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout))) 229 #if defined(INVARIANTS) 230 #define DRM_LOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_XLOCKED) 231 #define DRM_UNLOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_UNLOCKED) 232 #else 233 #define DRM_LOCK_ASSERT(d) 234 #define DRM_UNLOCK_ASSERT(d) 235 #endif 236 237 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 238 239 #define DRM_IRQ_ARGS void *arg 240 typedef void irqreturn_t; 241 #define IRQ_HANDLED /* nothing */ 242 #define IRQ_NONE /* nothing */ 243 244 enum { 245 DRM_IS_NOT_AGP, 246 DRM_IS_AGP, 247 DRM_MIGHT_BE_AGP 248 }; 249 #define DRM_AGP_MEM struct agp_memory_info 250 251 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 252 253 #define PAGE_ALIGN(addr) round_page(addr) 254 /* DRM_SUSER returns true if the user is superuser */ 255 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 256 #define DRM_AGP_FIND_DEVICE() agp_find_device() 257 #define DRM_MTRR_WC MDF_WRITECOMBINE 258 #define jiffies ticks 259 #define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz) 260 #define msecs_to_jiffies(x) (((int64_t)(x)) * hz / 1000) 261 #define time_after(a,b) ((long)(b) - (long)(a) < 0) 262 #define time_after_eq(a,b) ((long)(b) - (long)(a) <= 0) 263 #define drm_msleep(x, msg) pause((msg), ((int64_t)(x)) * hz / 1000) 264 265 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 266 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 267 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 268 */ 269 #define DRM_READMEMORYBARRIER() rmb() 270 #define DRM_WRITEMEMORYBARRIER() wmb() 271 #define DRM_MEMORYBARRIER() mb() 272 273 #define DRM_READ8(map, offset) \ 274 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 275 (vm_offset_t)(offset)) 276 #define DRM_READ16(map, offset) \ 277 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 278 (vm_offset_t)(offset))) 279 #define DRM_READ32(map, offset) \ 280 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 281 (vm_offset_t)(offset))) 282 #define DRM_READ64(map, offset) \ 283 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 284 (vm_offset_t)(offset))) 285 #define DRM_WRITE8(map, offset, val) \ 286 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 287 (vm_offset_t)(offset)) = val 288 #define DRM_WRITE16(map, offset, val) \ 289 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 290 (vm_offset_t)(offset)) = htole16(val) 291 #define DRM_WRITE32(map, offset, val) \ 292 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 293 (vm_offset_t)(offset)) = htole32(val) 294 #define DRM_WRITE64(map, offset, val) \ 295 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 296 (vm_offset_t)(offset)) = htole64(val) 297 298 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 299 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 300 301 #define DRM_COPY_TO_USER(user, kern, size) \ 302 copyout(kern, user, size) 303 #define DRM_COPY_FROM_USER(kern, user, size) \ 304 copyin(user, kern, size) 305 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 306 copyin(arg2, arg1, arg3) 307 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 308 copyout(arg2, arg1, arg3) 309 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 310 ((val) = fuword32(uaddr), 0) 311 312 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 313 (_map) = (_dev)->context_sareas[_ctx]; \ 314 } while(0) 315 316 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 317 do { \ 318 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 319 dev->lock.file_priv != file_priv) { \ 320 DRM_ERROR("%s called without lock held\n", \ 321 __FUNCTION__); \ 322 return EINVAL; \ 323 } \ 324 } while (0) 325 326 /* Returns -errno to shared code */ 327 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 328 for ( ret = 0 ; !ret && !(condition) ; ) { \ 329 DRM_UNLOCK(dev); \ 330 mtx_lock(&dev->irq_lock); \ 331 if (!(condition)) \ 332 ret = -mtx_sleep(&(queue), &dev->irq_lock, \ 333 PCATCH, "drmwtq", (timeout)); \ 334 mtx_unlock(&dev->irq_lock); \ 335 DRM_LOCK(dev); \ 336 } 337 338 #define DRM_ERROR(fmt, ...) \ 339 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 340 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 341 342 #define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 343 344 #define DRM_DEBUG(fmt, ...) do { \ 345 if ((drm_debug_flag & DRM_DEBUGBITS_DEBUG) != 0) \ 346 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 347 __func__ , ##__VA_ARGS__); \ 348 } while (0) 349 350 #define DRM_DEBUG_KMS(fmt, ...) do { \ 351 if ((drm_debug_flag & DRM_DEBUGBITS_KMS) != 0) \ 352 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 353 __func__ , ##__VA_ARGS__); \ 354 } while (0) 355 356 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 357 if ((drm_debug_flag & DRM_DEBUGBITS_KMS) != 0) \ 358 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 359 __func__ , ##__VA_ARGS__); \ 360 } while (0) 361 362 #define dev_err(dev, fmt, ...) \ 363 device_printf((dev), "error: " fmt, ## __VA_ARGS__) 364 #define dev_warn(dev, fmt, ...) \ 365 device_printf((dev), "warning: " fmt, ## __VA_ARGS__) 366 #define dev_info(dev, fmt, ...) \ 367 device_printf((dev), "info: " fmt, ## __VA_ARGS__) 368 #define dev_dbg(dev, fmt, ...) do { \ 369 if ((drm_debug_flag& DRM_DEBUGBITS_KMS) != 0) { \ 370 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 371 } \ 372 } while (0) 373 374 typedef struct drm_pci_id_list 375 { 376 int vendor; 377 int device; 378 long driver_private; 379 char *name; 380 } drm_pci_id_list_t; 381 382 struct drm_msi_blacklist_entry 383 { 384 int vendor; 385 int device; 386 }; 387 388 #define DRM_AUTH 0x1 389 #define DRM_MASTER 0x2 390 #define DRM_ROOT_ONLY 0x4 391 #define DRM_CONTROL_ALLOW 0x8 392 #define DRM_UNLOCKED 0x10 393 394 typedef struct drm_ioctl_desc { 395 unsigned long cmd; 396 int (*func)(struct drm_device *dev, void *data, 397 struct drm_file *file_priv); 398 int flags; 399 unsigned int cmd_drv; 400 } drm_ioctl_desc_t; 401 402 /** 403 * Creates a driver or general drm_ioctl_desc array entry for the given 404 * ioctl, for use by drm_ioctl(). 405 */ 406 #define DRM_IOCTL_DEF(ioctl, func, flags) \ 407 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 408 409 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 410 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 411 412 typedef struct drm_magic_entry { 413 drm_magic_t magic; 414 struct drm_file *priv; 415 struct drm_magic_entry *next; 416 } drm_magic_entry_t; 417 418 typedef struct drm_magic_head { 419 struct drm_magic_entry *head; 420 struct drm_magic_entry *tail; 421 } drm_magic_head_t; 422 423 typedef struct drm_buf { 424 int idx; /**< Index into master buflist */ 425 int total; /**< Buffer size */ 426 int order; /**< log-base-2(total) */ 427 int used; /**< Amount of buffer in use (for DMA) */ 428 unsigned long offset; /**< Byte offset (used internally) */ 429 void *address; /**< Address of buffer */ 430 unsigned long bus_address; /**< Bus address of buffer */ 431 struct drm_buf *next; /**< Kernel-only: used for free list */ 432 __volatile__ int waiting; /**< On kernel DMA queue */ 433 __volatile__ int pending; /**< On hardware DMA queue */ 434 struct drm_file *file_priv; /**< Private of holding file descr */ 435 int context; /**< Kernel queue for this buffer */ 436 int while_locked; /**< Dispatch this buffer while locked */ 437 enum { 438 DRM_LIST_NONE = 0, 439 DRM_LIST_FREE = 1, 440 DRM_LIST_WAIT = 2, 441 DRM_LIST_PEND = 3, 442 DRM_LIST_PRIO = 4, 443 DRM_LIST_RECLAIM = 5 444 } list; /**< Which list we're on */ 445 446 int dev_priv_size; /**< Size of buffer private storage */ 447 void *dev_private; /**< Per-buffer private storage */ 448 } drm_buf_t; 449 450 typedef struct drm_freelist { 451 int initialized; /* Freelist in use */ 452 atomic_t count; /* Number of free buffers */ 453 drm_buf_t *next; /* End pointer */ 454 455 int low_mark; /* Low water mark */ 456 int high_mark; /* High water mark */ 457 } drm_freelist_t; 458 459 typedef struct drm_dma_handle { 460 void *vaddr; 461 bus_addr_t busaddr; 462 bus_dma_tag_t tag; 463 bus_dmamap_t map; 464 } drm_dma_handle_t; 465 466 typedef struct drm_buf_entry { 467 int buf_size; 468 int buf_count; 469 drm_buf_t *buflist; 470 int seg_count; 471 drm_dma_handle_t **seglist; 472 int page_order; 473 474 drm_freelist_t freelist; 475 } drm_buf_entry_t; 476 477 /* Event queued up for userspace to read */ 478 struct drm_pending_event { 479 struct drm_event *event; 480 struct list_head link; 481 struct drm_file *file_priv; 482 pid_t pid; /* pid of requester, no guarantee it's valid by the time 483 we deliver the event, for tracing only */ 484 void (*destroy)(struct drm_pending_event *event); 485 }; 486 487 /* initial implementaton using a linked list - todo hashtab */ 488 struct drm_prime_file_private { 489 struct list_head head; 490 #ifdef DUMBBELL_WIP 491 struct mutex lock; 492 #endif /* DUMBBELL_WIP */ 493 }; 494 495 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 496 struct drm_file { 497 TAILQ_ENTRY(drm_file) link; 498 struct drm_device *dev; 499 int authenticated; 500 int master; 501 pid_t pid; 502 uid_t uid; 503 drm_magic_t magic; 504 unsigned long ioctl_count; 505 506 void *driver_priv; 507 struct drm_gem_names object_names; 508 509 int is_master; 510 struct drm_master *masterp; 511 512 struct list_head fbs; 513 514 struct list_head event_list; 515 int event_space; 516 struct selinfo event_poll; 517 518 struct drm_prime_file_private prime; 519 }; 520 521 typedef struct drm_lock_data { 522 struct drm_hw_lock *hw_lock; /* Hardware lock */ 523 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/ 524 int lock_queue; /* Queue of blocked processes */ 525 unsigned long lock_time; /* Time of last lock in jiffies */ 526 } drm_lock_data_t; 527 528 /* This structure, in the struct drm_device, is always initialized while the 529 * device 530 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 531 * when set marks that no further bufs may be allocated until device teardown 532 * occurs (when the last open of the device has closed). The high/low 533 * watermarks of bufs are only touched by the X Server, and thus not 534 * concurrently accessed, so no locking is needed. 535 */ 536 typedef struct drm_device_dma { 537 538 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 539 int buf_count; /**< total number of buffers */ 540 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 541 int seg_count; 542 int page_count; /**< number of pages */ 543 unsigned long *pagelist; /**< page list */ 544 unsigned long byte_count; 545 enum { 546 _DRM_DMA_USE_AGP = 0x01, 547 _DRM_DMA_USE_SG = 0x02, 548 _DRM_DMA_USE_FB = 0x04, 549 _DRM_DMA_USE_PCI_RO = 0x08 550 } flags; 551 552 } drm_device_dma_t; 553 554 typedef struct drm_agp_mem { 555 void *handle; 556 unsigned long bound; /* address */ 557 int pages; 558 struct drm_agp_mem *prev; 559 struct drm_agp_mem *next; 560 } drm_agp_mem_t; 561 562 typedef struct drm_agp_head { 563 device_t agpdev; 564 struct agp_info info; 565 const char *chipset; 566 drm_agp_mem_t *memory; 567 unsigned long mode; 568 int enabled; 569 int acquired; 570 unsigned long base; 571 int mtrr; 572 int cant_use_aperture; 573 unsigned long page_mask; 574 } drm_agp_head_t; 575 576 typedef struct drm_sg_mem { 577 vm_offset_t vaddr; 578 vm_paddr_t *busaddr; 579 vm_pindex_t pages; 580 } drm_sg_mem_t; 581 582 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 583 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 584 typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; 585 586 typedef struct drm_local_map { 587 unsigned long offset; /* Physical address (0 for SAREA) */ 588 unsigned long size; /* Physical size (bytes) */ 589 enum drm_map_type type; /* Type of memory mapped */ 590 enum drm_map_flags flags; /* Flags */ 591 void *handle; /* User-space: "Handle" to pass to mmap */ 592 /* Kernel-space: kernel-virtual address */ 593 int mtrr; /* Boolean: MTRR used */ 594 /* Private data */ 595 int rid; /* PCI resource ID for bus_space */ 596 void *virtual; /* Kernel-space: kernel-virtual address */ 597 struct resource *bsr; 598 bus_space_tag_t bst; 599 bus_space_handle_t bsh; 600 drm_dma_handle_t *dmah; 601 TAILQ_ENTRY(drm_local_map) link; 602 } drm_local_map_t; 603 604 struct drm_vblank_info { 605 wait_queue_head_t queue; /* vblank wait queue */ 606 atomic_t count; /* number of VBLANK interrupts */ 607 /* (driver must alloc the right number of counters) */ 608 atomic_t refcount; /* number of users of vblank interrupts */ 609 u32 last; /* protected by dev->vbl_lock, used */ 610 /* for wraparound handling */ 611 int enabled; /* so we don't call enable more than */ 612 /* once per disable */ 613 int inmodeset; /* Display driver is setting mode */ 614 }; 615 616 /* location of GART table */ 617 #define DRM_ATI_GART_MAIN 1 618 #define DRM_ATI_GART_FB 2 619 620 #define DRM_ATI_GART_PCI 1 621 #define DRM_ATI_GART_PCIE 2 622 #define DRM_ATI_GART_IGP 3 623 624 struct drm_ati_pcigart_info { 625 int gart_table_location; 626 int gart_reg_if; 627 void *addr; 628 dma_addr_t bus_addr; 629 dma_addr_t table_mask; 630 dma_addr_t member_mask; 631 struct drm_dma_handle *table_handle; 632 drm_local_map_t mapping; 633 int table_size; 634 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 635 }; 636 637 typedef vm_paddr_t resource_size_t; 638 639 /** 640 * GEM specific mm private for tracking GEM objects 641 */ 642 struct drm_gem_mm { 643 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 644 struct unrhdr *idxunr; 645 }; 646 647 struct drm_gem_object { 648 /** Reference count of this object */ 649 u_int refcount; 650 651 /** Handle count of this object. Each handle also holds a reference */ 652 u_int handle_count; /* number of handles on this object */ 653 654 /** Related drm device */ 655 struct drm_device *dev; 656 657 /** File representing the shmem storage: filp in Linux parlance */ 658 vm_object_t vm_obj; 659 660 bool on_map; 661 struct drm_hash_item map_list; 662 663 /** 664 * Size of the object, in bytes. Immutable over the object's 665 * lifetime. 666 */ 667 size_t size; 668 669 /** 670 * Global name for this object, starts at 1. 0 means unnamed. 671 * Access is covered by the object_name_lock in the related drm_device 672 */ 673 int name; 674 675 /** 676 * Memory domains. These monitor which caches contain read/write data 677 * related to the object. When transitioning from one set of domains 678 * to another, the driver is called to ensure that caches are suitably 679 * flushed and invalidated 680 */ 681 uint32_t read_domains; 682 uint32_t write_domain; 683 684 /** 685 * While validating an exec operation, the 686 * new read/write domain values are computed here. 687 * They will be transferred to the above values 688 * at the point that any cache flushing occurs 689 */ 690 uint32_t pending_read_domains; 691 uint32_t pending_write_domain; 692 693 void *driver_private; 694 695 #ifdef DUMBBELL_WIP 696 /* dma buf exported from this GEM object */ 697 struct dma_buf *export_dma_buf; 698 699 /* dma buf attachment backing this object */ 700 struct dma_buf_attachment *import_attach; 701 #endif /* DUMBBELL_WIP */ 702 }; 703 704 #include "drm_crtc.h" 705 706 /* per-master structure */ 707 struct drm_master { 708 709 u_int refcount; /* refcount for this master */ 710 711 struct list_head head; /**< each minor contains a list of masters */ 712 struct drm_minor *minor; /**< link back to minor we are a master for */ 713 714 char *unique; /**< Unique identifier: e.g., busid */ 715 int unique_len; /**< Length of unique field */ 716 int unique_size; /**< amount allocated */ 717 718 int blocked; /**< Blocked due to VC switch? */ 719 720 /** \name Authentication */ 721 /*@{ */ 722 struct drm_open_hash magiclist; 723 struct list_head magicfree; 724 /*@} */ 725 726 struct drm_lock_data lock; /**< Information on hardware lock */ 727 728 void *driver_priv; /**< Private structure for driver to use */ 729 }; 730 731 /* Size of ringbuffer for vblank timestamps. Just double-buffer 732 * in initial implementation. 733 */ 734 #define DRM_VBLANKTIME_RBSIZE 2 735 736 /* Flags and return codes for get_vblank_timestamp() driver function. */ 737 #define DRM_CALLED_FROM_VBLIRQ 1 738 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 739 #define DRM_VBLANKTIME_INVBL (1 << 1) 740 741 /* get_scanout_position() return flags */ 742 #define DRM_SCANOUTPOS_VALID (1 << 0) 743 #define DRM_SCANOUTPOS_INVBL (1 << 1) 744 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 745 746 #ifndef DMA_BIT_MASK 747 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 748 #endif 749 750 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 751 752 struct drm_driver_info { 753 int (*load)(struct drm_device *, unsigned long flags); 754 int (*use_msi)(struct drm_device *, unsigned long flags); 755 int (*firstopen)(struct drm_device *); 756 int (*open)(struct drm_device *, struct drm_file *); 757 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 758 void (*postclose)(struct drm_device *, struct drm_file *); 759 void (*lastclose)(struct drm_device *); 760 int (*unload)(struct drm_device *); 761 void (*reclaim_buffers_locked)(struct drm_device *, 762 struct drm_file *file_priv); 763 int (*dma_ioctl)(struct drm_device *dev, void *data, 764 struct drm_file *file_priv); 765 void (*dma_ready)(struct drm_device *); 766 int (*dma_quiescent)(struct drm_device *); 767 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 768 enum drm_lock_flags flags); 769 int (*dma_flush_unblock)(struct drm_device *, int context, 770 enum drm_lock_flags flags); 771 int (*context_ctor)(struct drm_device *dev, int context); 772 int (*context_dtor)(struct drm_device *dev, int context); 773 int (*kernel_context_switch)(struct drm_device *dev, int old, 774 int new); 775 int (*kernel_context_switch_unlock)(struct drm_device *dev); 776 void (*irq_preinstall)(struct drm_device *dev); 777 int (*irq_postinstall)(struct drm_device *dev); 778 void (*irq_uninstall)(struct drm_device *dev); 779 void (*irq_handler)(DRM_IRQ_ARGS); 780 781 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 782 int (*enable_vblank)(struct drm_device *dev, int crtc); 783 void (*disable_vblank)(struct drm_device *dev, int crtc); 784 int (*get_scanout_position)(struct drm_device *dev, int crtc, 785 int *vpos, int *hpos); 786 787 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 788 int *max_error, struct timeval *vblank_time, 789 unsigned flags); 790 791 int (*gem_init_object)(struct drm_gem_object *obj); 792 void (*gem_free_object)(struct drm_gem_object *obj); 793 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 794 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 795 796 struct cdev_pager_ops *gem_pager_ops; 797 798 int (*dumb_create)(struct drm_file *file_priv, 799 struct drm_device *dev, struct drm_mode_create_dumb *args); 800 int (*dumb_map_offset)(struct drm_file *file_priv, 801 struct drm_device *dev, uint32_t handle, uint64_t *offset); 802 int (*dumb_destroy)(struct drm_file *file_priv, 803 struct drm_device *dev, uint32_t handle); 804 805 int (*sysctl_init)(struct drm_device *dev, 806 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 807 void (*sysctl_cleanup)(struct drm_device *dev); 808 809 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 810 811 /** 812 * Called by \c drm_device_is_agp. Typically used to determine if a 813 * card is really attached to AGP or not. 814 * 815 * \param dev DRM device handle 816 * 817 * \returns 818 * One of three values is returned depending on whether or not the 819 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 820 * (return of 1), or may or may not be AGP (return of 2). 821 */ 822 int (*device_is_agp) (struct drm_device * dev); 823 824 drm_ioctl_desc_t *ioctls; 825 #ifdef COMPAT_FREEBSD32 826 drm_ioctl_desc_t *compat_ioctls; 827 int *compat_ioctls_nr; 828 #endif 829 int max_ioctl; 830 831 int buf_priv_size; 832 833 int major; 834 int minor; 835 int patchlevel; 836 const char *name; /* Simple driver name */ 837 const char *desc; /* Longer driver name */ 838 const char *date; /* Date of last major changes. */ 839 840 u32 driver_features; 841 }; 842 843 /** 844 * DRM minor structure. This structure represents a drm minor number. 845 */ 846 struct drm_minor { 847 int index; /**< Minor device number */ 848 int type; /**< Control or render */ 849 device_t kdev; /**< OS device */ 850 struct drm_device *dev; 851 852 struct drm_master *master; /* currently active master for this node */ 853 struct list_head master_list; 854 struct drm_mode_group mode_group; 855 }; 856 857 /* mode specified on the command line */ 858 struct drm_cmdline_mode { 859 bool specified; 860 bool refresh_specified; 861 bool bpp_specified; 862 int xres, yres; 863 int bpp; 864 int refresh; 865 bool rb; 866 bool interlace; 867 bool cvt; 868 bool margins; 869 enum drm_connector_force force; 870 }; 871 872 873 struct drm_pending_vblank_event { 874 struct drm_pending_event base; 875 int pipe; 876 struct drm_event_vblank event; 877 }; 878 879 /* Length for the array of resource pointers for drm_get_resource_*. */ 880 #define DRM_MAX_PCI_RESOURCE 6 881 882 /** 883 * DRM device structure. This structure represent a complete card that 884 * may contain multiple heads. 885 */ 886 struct drm_device { 887 struct drm_driver_info *driver; 888 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 889 890 uint16_t pci_device; /* PCI device id */ 891 uint16_t pci_vendor; /* PCI vendor id */ 892 uint16_t pci_subdevice; /* PCI subsystem device id */ 893 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 894 895 char *unique; /* Unique identifier: e.g., busid */ 896 int unique_len; /* Length of unique field */ 897 device_t device; /* Device instance from newbus */ 898 struct cdev *devnode; /* Device number for mknod */ 899 int if_version; /* Highest interface version set */ 900 901 int flags; /* Flags to open(2) */ 902 903 /* Locks */ 904 struct mtx dma_lock; /* protects dev->dma */ 905 struct mtx irq_lock; /* protects irq condition checks */ 906 struct mtx dev_lock; /* protects everything else */ 907 struct sx dev_struct_lock; 908 DRM_SPINTYPE drw_lock; 909 910 /* Usage Counters */ 911 int open_count; /* Outstanding files open */ 912 int buf_use; /* Buffers in use -- cannot alloc */ 913 914 /* Performance counters */ 915 unsigned long counters; 916 enum drm_stat_type types[15]; 917 atomic_t counts[15]; 918 919 /* Authentication */ 920 drm_file_list_t files; 921 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 922 923 /* Linked list of mappable regions. Protected by dev_lock */ 924 drm_map_list_t maplist; 925 struct unrhdr *map_unrhdr; 926 927 drm_local_map_t **context_sareas; 928 int max_context; 929 930 drm_lock_data_t lock; /* Information on hardware lock */ 931 932 /* DMA queues (contexts) */ 933 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 934 935 /* Context support */ 936 int irq; /* Interrupt used by board */ 937 int irq_enabled; /* True if the irq handler is enabled */ 938 int msi_enabled; /* MSI enabled */ 939 int irqrid; /* Interrupt used by board */ 940 struct resource *irqr; /* Resource for interrupt used by board */ 941 void *irqh; /* Handle from bus_setup_intr */ 942 943 /* Storage of resource pointers for drm_get_resource_* */ 944 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 945 int pcirid[DRM_MAX_PCI_RESOURCE]; 946 947 int pci_domain; 948 int pci_bus; 949 int pci_slot; 950 int pci_func; 951 952 atomic_t context_flag; /* Context swapping flag */ 953 int last_context; /* Last current context */ 954 955 int num_crtcs; 956 957 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 958 959 /* Sysctl support */ 960 struct drm_sysctl_info *sysctl; 961 int sysctl_node_idx; 962 963 drm_agp_head_t *agp; 964 drm_sg_mem_t *sg; /* Scatter gather memory */ 965 unsigned long *ctx_bitmap; 966 void *dev_private; 967 unsigned int agp_buffer_token; 968 drm_local_map_t *agp_buffer_map; 969 970 struct drm_minor *control; /**< Control node for card */ 971 struct drm_minor *primary; /**< render type primary screen head */ 972 973 void *drm_ttm_bdev; 974 struct unrhdr *drw_unrhdr; 975 /* RB tree of drawable infos */ 976 RB_HEAD(drawable_tree, bsd_drm_drawable_info) drw_head; 977 978 int vblank_disable_allowed; 979 980 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 981 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 982 struct mtx vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 983 struct mtx vbl_lock; 984 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 985 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 986 /* for wraparound handling */ 987 int *vblank_enabled; /* so we don't call enable more than 988 once per disable */ 989 int *vblank_inmodeset; /* Display driver is setting mode */ 990 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 991 struct callout vblank_disable_callout; 992 993 u32 max_vblank_count; /**< size of vblank counter register */ 994 995 struct list_head vblank_event_list; 996 struct mtx event_lock; 997 998 struct drm_mode_config mode_config; /**< Current mode config */ 999 1000 /* GEM part */ 1001 struct sx object_name_lock; 1002 struct drm_gem_names object_names; 1003 void *mm_private; 1004 1005 void *sysctl_private; 1006 char busid_str[128]; 1007 int modesetting; 1008 1009 int switch_power_state; 1010 }; 1011 1012 #define DRM_SWITCH_POWER_ON 0 1013 #define DRM_SWITCH_POWER_OFF 1 1014 #define DRM_SWITCH_POWER_CHANGING 2 1015 1016 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1017 int feature) 1018 { 1019 return ((dev->driver->driver_features & feature) ? 1 : 0); 1020 } 1021 1022 #if __OS_HAS_AGP 1023 static inline int drm_core_has_AGP(struct drm_device *dev) 1024 { 1025 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1026 } 1027 #else 1028 #define drm_core_has_AGP(dev) (0) 1029 #endif 1030 1031 enum dmi_field { 1032 DMI_NONE, 1033 DMI_BIOS_VENDOR, 1034 DMI_BIOS_VERSION, 1035 DMI_BIOS_DATE, 1036 DMI_SYS_VENDOR, 1037 DMI_PRODUCT_NAME, 1038 DMI_PRODUCT_VERSION, 1039 DMI_PRODUCT_SERIAL, 1040 DMI_PRODUCT_UUID, 1041 DMI_BOARD_VENDOR, 1042 DMI_BOARD_NAME, 1043 DMI_BOARD_VERSION, 1044 DMI_BOARD_SERIAL, 1045 DMI_BOARD_ASSET_TAG, 1046 DMI_CHASSIS_VENDOR, 1047 DMI_CHASSIS_TYPE, 1048 DMI_CHASSIS_VERSION, 1049 DMI_CHASSIS_SERIAL, 1050 DMI_CHASSIS_ASSET_TAG, 1051 DMI_STRING_MAX, 1052 }; 1053 1054 struct dmi_strmatch { 1055 unsigned char slot; 1056 char substr[79]; 1057 }; 1058 1059 struct dmi_system_id { 1060 int (*callback)(const struct dmi_system_id *); 1061 const char *ident; 1062 struct dmi_strmatch matches[4]; 1063 }; 1064 #define DMI_MATCH(a, b) {(a), (b)} 1065 bool dmi_check_system(const struct dmi_system_id *); 1066 1067 extern int drm_debug_flag; 1068 extern int drm_notyet_flag; 1069 extern unsigned int drm_vblank_offdelay; 1070 extern unsigned int drm_timestamp_precision; 1071 extern unsigned int drm_timestamp_monotonic; 1072 1073 /* Device setup support (drm_drv.c) */ 1074 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1075 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1076 int drm_create_cdevs(device_t kdev); 1077 void drm_close(void *data); 1078 int drm_detach(device_t kdev); 1079 d_ioctl_t drm_ioctl; 1080 d_open_t drm_open; 1081 d_read_t drm_read; 1082 d_poll_t drm_poll; 1083 d_mmap_t drm_mmap; 1084 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1085 1086 void drm_event_wakeup(struct drm_pending_event *e); 1087 1088 int drm_add_busid_modesetting(struct drm_device *dev, 1089 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1090 1091 /* File operations helpers (drm_fops.c) */ 1092 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1093 DRM_STRUCTPROC *p, 1094 struct drm_device *dev); 1095 1096 #ifdef DUMBBELL_WIP 1097 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1098 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1099 int *prime_fd); 1100 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1101 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1102 1103 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1104 struct drm_file *file_priv); 1105 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1106 struct drm_file *file_priv); 1107 1108 #ifdef DUMBBELL_WIP 1109 /* 1110 * See drm_prime.c 1111 * -- dumbbell@ 1112 */ 1113 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1114 dma_addr_t *addrs, int max_pages); 1115 #endif /* DUMBBELL_WIP */ 1116 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1117 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1118 1119 1120 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1121 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1122 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1123 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1124 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1125 1126 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1127 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1128 struct drm_gem_object **obj); 1129 #endif /* DUMBBELL_WIP */ 1130 1131 /* Memory management support (drm_memory.c) */ 1132 void drm_mem_init(void); 1133 void drm_mem_uninit(void); 1134 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1135 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1136 void drm_ioremapfree(drm_local_map_t *map); 1137 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1138 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1139 1140 int drm_context_switch(struct drm_device *dev, int old, int new); 1141 int drm_context_switch_complete(struct drm_device *dev, int new); 1142 1143 int drm_ctxbitmap_init(struct drm_device *dev); 1144 void drm_ctxbitmap_cleanup(struct drm_device *dev); 1145 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1146 int drm_ctxbitmap_next(struct drm_device *dev); 1147 1148 /* Locking IOCTL support (drm_lock.c) */ 1149 int drm_lock_take(struct drm_lock_data *lock_data, 1150 unsigned int context); 1151 int drm_lock_transfer(struct drm_lock_data *lock_data, 1152 unsigned int context); 1153 int drm_lock_free(struct drm_lock_data *lock_data, 1154 unsigned int context); 1155 1156 /* Buffer management support (drm_bufs.c) */ 1157 unsigned long drm_get_resource_start(struct drm_device *dev, 1158 unsigned int resource); 1159 unsigned long drm_get_resource_len(struct drm_device *dev, 1160 unsigned int resource); 1161 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1162 int drm_order(unsigned long size); 1163 int drm_addmap(struct drm_device *dev, unsigned long offset, 1164 unsigned long size, 1165 enum drm_map_type type, enum drm_map_flags flags, 1166 drm_local_map_t **map_ptr); 1167 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1168 int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request); 1169 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1170 1171 /* DMA support (drm_dma.c) */ 1172 int drm_dma_setup(struct drm_device *dev); 1173 void drm_dma_takedown(struct drm_device *dev); 1174 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1175 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1176 #define drm_core_reclaim_buffers drm_reclaim_buffers 1177 1178 /* IRQ support (drm_irq.c) */ 1179 int drm_irq_install(struct drm_device *dev); 1180 int drm_irq_uninstall(struct drm_device *dev); 1181 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 1182 void drm_driver_irq_preinstall(struct drm_device *dev); 1183 void drm_driver_irq_postinstall(struct drm_device *dev); 1184 void drm_driver_irq_uninstall(struct drm_device *dev); 1185 1186 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1187 void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1188 int drm_modeset_ctl(struct drm_device *dev, void *data, 1189 struct drm_file *file_priv); 1190 1191 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1192 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1193 struct drm_file *filp); 1194 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1195 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1196 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1197 struct timeval *vblanktime); 1198 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1199 void drm_handle_vblank_events(struct drm_device *dev, int crtc); 1200 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1201 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1202 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1203 extern void drm_vblank_cleanup(struct drm_device *dev); 1204 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1205 struct timeval *tvblank, unsigned flags); 1206 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1207 int crtc, int *max_error, 1208 struct timeval *vblank_time, 1209 unsigned flags, 1210 struct drm_crtc *refcrtc); 1211 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1212 1213 struct timeval ns_to_timeval(const int64_t nsec); 1214 int64_t timeval_to_ns(const struct timeval *tv); 1215 1216 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1217 int drm_device_is_agp(struct drm_device *dev); 1218 int drm_device_is_pcie(struct drm_device *dev); 1219 drm_agp_head_t *drm_agp_init(void); 1220 int drm_agp_acquire(struct drm_device *dev); 1221 int drm_agp_release(struct drm_device *dev); 1222 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 1223 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1224 void *drm_agp_allocate_memory(size_t pages, u32 type); 1225 int drm_agp_free_memory(void *handle); 1226 int drm_agp_bind_memory(void *handle, off_t start); 1227 int drm_agp_unbind_memory(void *handle); 1228 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1229 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1230 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1231 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1232 1233 /* Scatter Gather Support (drm_scatter.c) */ 1234 void drm_sg_cleanup(drm_sg_mem_t *entry); 1235 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1236 1237 /* sysctl support (drm_sysctl.h) */ 1238 extern int drm_sysctl_init(struct drm_device *dev); 1239 extern int drm_sysctl_cleanup(struct drm_device *dev); 1240 1241 /* ATI PCIGART support (ati_pcigart.c) */ 1242 int drm_ati_pcigart_init(struct drm_device *dev, 1243 struct drm_ati_pcigart_info *gart_info); 1244 int drm_ati_pcigart_cleanup(struct drm_device *dev, 1245 struct drm_ati_pcigart_info *gart_info); 1246 1247 /* Cache management (drm_memory.c) */ 1248 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1249 void drm_clflush_virt_range(char *addr, unsigned long length); 1250 1251 /* Locking IOCTL support (drm_drv.c) */ 1252 int drm_lock(struct drm_device *dev, void *data, 1253 struct drm_file *file_priv); 1254 int drm_unlock(struct drm_device *dev, void *data, 1255 struct drm_file *file_priv); 1256 int drm_version(struct drm_device *dev, void *data, 1257 struct drm_file *file_priv); 1258 int drm_setversion(struct drm_device *dev, void *data, 1259 struct drm_file *file_priv); 1260 1261 /* Misc. IOCTL support (drm_ioctl.c) */ 1262 int drm_irq_by_busid(struct drm_device *dev, void *data, 1263 struct drm_file *file_priv); 1264 int drm_getunique(struct drm_device *dev, void *data, 1265 struct drm_file *file_priv); 1266 int drm_setunique(struct drm_device *dev, void *data, 1267 struct drm_file *file_priv); 1268 int drm_getmap(struct drm_device *dev, void *data, 1269 struct drm_file *file_priv); 1270 int drm_getclient(struct drm_device *dev, void *data, 1271 struct drm_file *file_priv); 1272 int drm_getstats(struct drm_device *dev, void *data, 1273 struct drm_file *file_priv); 1274 int drm_getcap(struct drm_device *dev, void *data, 1275 struct drm_file *file_priv); 1276 int drm_noop(struct drm_device *dev, void *data, 1277 struct drm_file *file_priv); 1278 1279 /* Context IOCTL support (drm_context.c) */ 1280 int drm_resctx(struct drm_device *dev, void *data, 1281 struct drm_file *file_priv); 1282 int drm_addctx(struct drm_device *dev, void *data, 1283 struct drm_file *file_priv); 1284 int drm_modctx(struct drm_device *dev, void *data, 1285 struct drm_file *file_priv); 1286 int drm_getctx(struct drm_device *dev, void *data, 1287 struct drm_file *file_priv); 1288 int drm_switchctx(struct drm_device *dev, void *data, 1289 struct drm_file *file_priv); 1290 int drm_newctx(struct drm_device *dev, void *data, 1291 struct drm_file *file_priv); 1292 int drm_rmctx(struct drm_device *dev, void *data, 1293 struct drm_file *file_priv); 1294 int drm_setsareactx(struct drm_device *dev, void *data, 1295 struct drm_file *file_priv); 1296 int drm_getsareactx(struct drm_device *dev, void *data, 1297 struct drm_file *file_priv); 1298 1299 /* Drawable IOCTL support (drm_drawable.c) */ 1300 int drm_adddraw(struct drm_device *dev, void *data, 1301 struct drm_file *file_priv); 1302 int drm_rmdraw(struct drm_device *dev, void *data, 1303 struct drm_file *file_priv); 1304 int drm_update_draw(struct drm_device *dev, void *data, 1305 struct drm_file *file_priv); 1306 struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, 1307 int handle); 1308 1309 /* Drawable support (drm_drawable.c) */ 1310 void drm_drawable_free_all(struct drm_device *dev); 1311 1312 /* Authentication IOCTL support (drm_auth.c) */ 1313 int drm_getmagic(struct drm_device *dev, void *data, 1314 struct drm_file *file_priv); 1315 int drm_authmagic(struct drm_device *dev, void *data, 1316 struct drm_file *file_priv); 1317 1318 /* Buffer management support (drm_bufs.c) */ 1319 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1320 struct drm_file *file_priv); 1321 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1322 struct drm_file *file_priv); 1323 int drm_addbufs(struct drm_device *dev, void *data, 1324 struct drm_file *file_priv); 1325 int drm_infobufs(struct drm_device *dev, void *data, 1326 struct drm_file *file_priv); 1327 int drm_markbufs(struct drm_device *dev, void *data, 1328 struct drm_file *file_priv); 1329 int drm_freebufs(struct drm_device *dev, void *data, 1330 struct drm_file *file_priv); 1331 int drm_mapbufs(struct drm_device *dev, void *data, 1332 struct drm_file *file_priv); 1333 1334 /* DMA support (drm_dma.c) */ 1335 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1336 1337 /* IRQ support (drm_irq.c) */ 1338 int drm_control(struct drm_device *dev, void *data, 1339 struct drm_file *file_priv); 1340 1341 /* AGP/GART support (drm_agpsupport.c) */ 1342 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1343 struct drm_file *file_priv); 1344 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1345 struct drm_file *file_priv); 1346 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1347 struct drm_file *file_priv); 1348 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1349 struct drm_file *file_priv); 1350 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1351 struct drm_file *file_priv); 1352 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1353 struct drm_file *file_priv); 1354 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1355 struct drm_file *file_priv); 1356 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1357 struct drm_file *file_priv); 1358 1359 /* Stub support (drm_stub.h) */ 1360 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1361 struct drm_file *file_priv); 1362 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1363 struct drm_file *file_priv); 1364 1365 /* Scatter Gather Support (drm_scatter.c) */ 1366 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1367 struct drm_file *file_priv); 1368 int drm_sg_free(struct drm_device *dev, void *data, 1369 struct drm_file *file_priv); 1370 1371 /* consistent PCI memory functions (drm_pci.c) */ 1372 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1373 size_t align, dma_addr_t maxaddr); 1374 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1375 1376 /* Graphics Execution Manager library functions (drm_gem.c) */ 1377 int drm_gem_init(struct drm_device *dev); 1378 void drm_gem_destroy(struct drm_device *dev); 1379 1380 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1381 struct drm_file *file_priv); 1382 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1383 struct drm_file *file_priv); 1384 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1385 struct drm_file *file_priv); 1386 int drm_gem_handle_create(struct drm_file *file_priv, 1387 struct drm_gem_object *obj, 1388 u32 *handlep); 1389 int drm_gem_handle_delete(struct drm_file *file_priv, uint32_t handle); 1390 void drm_gem_object_handle_reference(struct drm_gem_object *obj); 1391 void drm_gem_object_handle_unreference(struct drm_gem_object *obj); 1392 void drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj); 1393 void drm_gem_object_handle_free(struct drm_gem_object *obj); 1394 void drm_gem_object_reference(struct drm_gem_object *obj); 1395 void drm_gem_object_unreference(struct drm_gem_object *obj); 1396 void drm_gem_object_unreference_unlocked(struct drm_gem_object *obj); 1397 void drm_gem_object_release(struct drm_gem_object *obj); 1398 void drm_gem_object_free(struct drm_gem_object *obj); 1399 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, 1400 size_t size); 1401 int drm_gem_private_object_init(struct drm_device *dev, 1402 struct drm_gem_object *obj, size_t size); 1403 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1404 size_t size); 1405 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1406 struct drm_file *file_priv, uint32_t handle); 1407 1408 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1409 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1410 1411 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1412 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1413 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1414 vm_size_t size, struct vm_object **obj_res, int nprot); 1415 void drm_gem_pager_dtr(void *obj); 1416 1417 struct ttm_bo_device; 1418 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1419 vm_size_t size, struct vm_object **obj_res, int nprot); 1420 struct ttm_buffer_object; 1421 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1422 1423 void drm_device_lock_mtx(struct drm_device *dev); 1424 void drm_device_unlock_mtx(struct drm_device *dev); 1425 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1426 const char *msg, int timeout); 1427 void drm_device_assert_mtx_locked(struct drm_device *dev); 1428 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1429 1430 void drm_device_lock_struct(struct drm_device *dev); 1431 void drm_device_unlock_struct(struct drm_device *dev); 1432 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1433 const char *msg, int timeout); 1434 void drm_device_assert_struct_locked(struct drm_device *dev); 1435 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1436 1437 void drm_compat_locking_init(struct drm_device *dev); 1438 void drm_sleep_locking_init(struct drm_device *dev); 1439 1440 /* drm_modes.c */ 1441 bool drm_mode_parse_command_line_for_connector(const char *mode_option, 1442 struct drm_connector *connector, struct drm_cmdline_mode *mode); 1443 struct drm_display_mode *drm_mode_create_from_cmdline_mode( 1444 struct drm_device *dev, struct drm_cmdline_mode *cmd); 1445 1446 /* drm_edid.c */ 1447 u8 *drm_find_cea_extension(struct edid *edid); 1448 1449 /* Inline replacements for drm_alloc and friends */ 1450 static __inline__ void * 1451 drm_alloc(size_t size, struct malloc_type *area) 1452 { 1453 return malloc(size, area, M_NOWAIT); 1454 } 1455 1456 static __inline__ void * 1457 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1458 { 1459 return malloc(size * nmemb, area, M_NOWAIT | M_ZERO); 1460 } 1461 1462 static __inline__ void * 1463 drm_realloc(void *oldpt, size_t oldsize, size_t size, 1464 struct malloc_type *area) 1465 { 1466 return reallocf(oldpt, size, area, M_NOWAIT); 1467 } 1468 1469 static __inline__ void 1470 drm_free(void *pt, size_t size, struct malloc_type *area) 1471 { 1472 free(pt, area); 1473 } 1474 1475 /* Inline replacements for DRM_IOREMAP macros */ 1476 static __inline__ void 1477 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1478 { 1479 map->virtual = drm_ioremap_wc(dev, map); 1480 } 1481 static __inline__ void 1482 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1483 { 1484 map->virtual = drm_ioremap(dev, map); 1485 } 1486 static __inline__ void 1487 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1488 { 1489 if ( map->virtual && map->size ) 1490 drm_ioremapfree(map); 1491 } 1492 1493 static __inline__ struct drm_local_map * 1494 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1495 { 1496 drm_local_map_t *map; 1497 1498 DRM_LOCK_ASSERT(dev); 1499 TAILQ_FOREACH(map, &dev->maplist, link) { 1500 if (offset == (unsigned long)map->handle) 1501 return map; 1502 } 1503 return NULL; 1504 } 1505 1506 static __inline__ void drm_core_dropmap(struct drm_map *map) 1507 { 1508 } 1509 1510 #define DRM_PCIE_SPEED_25 1 1511 #define DRM_PCIE_SPEED_50 2 1512 #define DRM_PCIE_SPEED_80 4 1513 1514 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1515 1516 #define drm_can_sleep() (DRM_HZ & 1) 1517 1518 #endif /* __KERNEL__ */ 1519 #endif /* _DRM_P_H_ */ 1520