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