1 /** 2 * \file drmP.h 3 * Private header for Direct Rendering Manager 4 * 5 * \author Rickard E. (Rik) Faith <faith@valinux.com> 6 * \author Gareth Hughes <gareth@valinux.com> 7 */ 8 9 /* 10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 12 * Copyright (c) 2009-2010, Code Aurora Forum. 13 * All rights reserved. 14 * 15 * Permission is hereby granted, free of charge, to any person obtaining a 16 * copy of this software and associated documentation files (the "Software"), 17 * to deal in the Software without restriction, including without limitation 18 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 19 * and/or sell copies of the Software, and to permit persons to whom the 20 * Software is furnished to do so, subject to the following conditions: 21 * 22 * The above copyright notice and this permission notice (including the next 23 * paragraph) shall be included in all copies or substantial portions of the 24 * Software. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 29 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 30 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 31 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 32 * OTHER DEALINGS IN THE SOFTWARE. 33 * 34 * $FreeBSD: head/sys/dev/drm2/drmP.h 255045 2013-08-29 23:09:34Z jkim $ 35 */ 36 37 #ifndef _DRM_P_H_ 38 #define _DRM_P_H_ 39 40 #if defined(_KERNEL) || defined(__KERNEL__) 41 42 #include <sys/param.h> 43 #include <sys/queue.h> 44 #include <sys/malloc.h> 45 #include <sys/kernel.h> 46 #include <sys/ktr.h> 47 #include <sys/module.h> 48 #include <sys/systm.h> 49 #include <sys/device.h> 50 #include <sys/sglist.h> 51 #include <sys/stat.h> 52 #include <sys/priv.h> 53 #include <sys/proc.h> 54 #include <sys/lock.h> 55 #include <sys/spinlock.h> 56 #include <sys/spinlock2.h> 57 #include <sys/fcntl.h> 58 #include <sys/uio.h> 59 #include <sys/filio.h> 60 #include <sys/sysctl.h> 61 #include <sys/bus.h> 62 #include <sys/queue.h> 63 #include <sys/signalvar.h> 64 #include <sys/poll.h> 65 #include <sys/sbuf.h> 66 #include <sys/taskqueue.h> 67 #include <sys/tree.h> 68 #include <vm/vm.h> 69 #include <vm/pmap.h> 70 #include <vm/vm_extern.h> 71 #include <vm/vm_kern.h> 72 #include <vm/vm_map.h> 73 #include <vm/vm_object.h> 74 #include <vm/vm_page2.h> 75 #include <vm/vm_pager.h> 76 #include <vm/vm_param.h> 77 #include <machine/param.h> 78 #include <machine/pmap.h> 79 #if defined(__i386__) || defined(__amd64__) 80 #include <machine/specialreg.h> 81 #endif 82 #include <machine/sysarch.h> 83 #include <sys/endian.h> 84 #include <sys/mman.h> 85 #include <sys/rman.h> 86 #include <sys/memrange.h> 87 #include <dev/agp/agpvar.h> 88 #include <sys/agpio.h> 89 #include <sys/mutex.h> 90 #include <bus/pci/pcivar.h> 91 #include <bus/pci/pcireg.h> 92 93 #include <uapi_drm/drm.h> 94 #include <uapi_drm/drm_sarea.h> 95 96 #include <linux/atomic.h> 97 #include <linux/idr.h> 98 #include <linux/kernel.h> 99 #include <linux/kref.h> 100 #include <linux/list.h> 101 #include <linux/types.h> 102 103 #include <asm/uaccess.h> 104 105 struct drm_file; 106 struct drm_device; 107 108 #include "drm_os_freebsd.h" 109 #include "drm_hashtab.h" 110 #include "drm_mm.h" 111 112 #define DRM_UT_CORE 0x01 113 #define DRM_UT_DRIVER 0x02 114 #define DRM_UT_KMS 0x04 115 #define DRM_UT_PRIME 0x08 116 117 #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 /** \name Begin the DRM... */ 153 /*@{*/ 154 155 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 156 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 157 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 158 159 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 160 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 161 #define DRM_GEM_MAX_IDX 0x3fffff 162 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 163 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 164 #define DRM_GEM_MAPPING_MAPOFF(o) \ 165 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 166 167 MALLOC_DECLARE(DRM_MEM_DMA); 168 MALLOC_DECLARE(DRM_MEM_SAREA); 169 MALLOC_DECLARE(DRM_MEM_DRIVER); 170 MALLOC_DECLARE(DRM_MEM_MAGIC); 171 MALLOC_DECLARE(DRM_MEM_MAPS); 172 MALLOC_DECLARE(DRM_MEM_BUFS); 173 MALLOC_DECLARE(DRM_MEM_SEGS); 174 MALLOC_DECLARE(DRM_MEM_PAGES); 175 MALLOC_DECLARE(DRM_MEM_FILES); 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) NELEM(x) 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_CURRENTPID (curproc != NULL ? curproc->p_pid : -1) 213 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE) 214 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE) 215 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 216 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout))) 217 #if defined(INVARIANTS) 218 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0); 219 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0); 220 #else 221 #define DRM_LOCK_ASSERT(d) 222 #define DRM_UNLOCK_ASSERT(d) 223 #endif 224 225 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 226 227 #define DRM_IRQ_ARGS void *arg 228 typedef void irqreturn_t; 229 #define IRQ_HANDLED /* nothing */ 230 #define IRQ_NONE /* nothing */ 231 232 enum { 233 DRM_IS_NOT_AGP, 234 DRM_IS_AGP, 235 DRM_MIGHT_BE_AGP 236 }; 237 #define DRM_AGP_MEM struct agp_memory_info 238 239 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 240 241 #define PAGE_ALIGN(addr) round_page(addr) 242 /* DRM_SUSER returns true if the user is superuser */ 243 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 244 #define DRM_AGP_FIND_DEVICE() agp_find_device() 245 #define DRM_MTRR_WC MDF_WRITECOMBINE 246 #define jiffies ticks 247 #define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz) 248 #define msecs_to_jiffies(x) (((int64_t)(x)) * hz / 1000) 249 #define time_after(a,b) ((long)(b) - (long)(a) < 0) 250 #define time_after_eq(a,b) ((long)(b) - (long)(a) <= 0) 251 252 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 253 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 254 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 255 */ 256 #define DRM_READMEMORYBARRIER() cpu_lfence() 257 #define DRM_WRITEMEMORYBARRIER() cpu_sfence() 258 #define DRM_MEMORYBARRIER() cpu_mfence() 259 260 #define DRM_READ8(map, offset) \ 261 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 262 (vm_offset_t)(offset)) 263 #define DRM_READ16(map, offset) \ 264 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 265 (vm_offset_t)(offset))) 266 #define DRM_READ32(map, offset) \ 267 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 268 (vm_offset_t)(offset))) 269 #define DRM_READ64(map, offset) \ 270 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 271 (vm_offset_t)(offset))) 272 #define DRM_WRITE8(map, offset, val) \ 273 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 274 (vm_offset_t)(offset)) = val 275 #define DRM_WRITE16(map, offset, val) \ 276 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 277 (vm_offset_t)(offset)) = htole16(val) 278 #define DRM_WRITE32(map, offset, val) \ 279 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 280 (vm_offset_t)(offset)) = htole32(val) 281 #define DRM_WRITE64(map, offset, val) \ 282 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 283 (vm_offset_t)(offset)) = htole64(val) 284 285 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 286 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 287 288 #define DRM_COPY_TO_USER(user, kern, size) \ 289 copyout(kern, user, size) 290 #define DRM_COPY_FROM_USER(kern, user, size) \ 291 copyin(user, kern, size) 292 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 293 copyin(arg2, arg1, arg3) 294 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 295 copyout(arg2, arg1, arg3) 296 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 297 ((val) = fuword32(uaddr), 0) 298 299 #define drm_can_sleep() (DRM_HZ & 1) 300 301 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 302 (_map) = (_dev)->context_sareas[_ctx]; \ 303 } while(0) 304 305 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 306 do { \ 307 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 308 dev->lock.file_priv != file_priv) { \ 309 DRM_ERROR("%s called without lock held\n", \ 310 __FUNCTION__); \ 311 return EINVAL; \ 312 } \ 313 } while (0) 314 315 /* Returns -errno to shared code */ 316 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 317 for ( ret = 0 ; !ret && !(condition) ; ) { \ 318 DRM_UNLOCK(dev); \ 319 lwkt_serialize_enter(&dev->irq_lock); \ 320 if (!(condition)) { \ 321 tsleep_interlock(&(queue), PCATCH); \ 322 lwkt_serialize_exit(&dev->irq_lock); \ 323 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 324 "drmwtq", (timeout)); \ 325 } else { \ 326 lwkt_serialize_exit(&dev->irq_lock); \ 327 } \ 328 DRM_LOCK(dev); \ 329 } 330 331 __inline static void 332 vm_page_unhold_pages(vm_page_t *ma, int count) 333 { 334 int i; 335 336 for (i = 0; i < count; i++) 337 vm_page_unhold(ma[i]); 338 } 339 340 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 341 vm_memattr_t memattr); 342 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 343 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 344 345 #define DRM_ERROR(fmt, ...) \ 346 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 347 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 348 349 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 350 351 #define DRM_DEBUG(fmt, ...) do { \ 352 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 353 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 354 __func__ , ##__VA_ARGS__); \ 355 } while (0) 356 357 #define DRM_DEBUG_KMS(fmt, ...) do { \ 358 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 359 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 360 __func__ , ##__VA_ARGS__); \ 361 } while (0) 362 363 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 364 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 365 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 366 __func__ , ##__VA_ARGS__); \ 367 } while (0) 368 369 #define dev_err(dev, fmt, ...) \ 370 device_printf((dev), "error: " fmt, ## __VA_ARGS__) 371 #define dev_warn(dev, fmt, ...) \ 372 device_printf((dev), "warning: " fmt, ## __VA_ARGS__) 373 #define dev_info(dev, fmt, ...) \ 374 device_printf((dev), "info: " fmt, ## __VA_ARGS__) 375 #define dev_dbg(dev, fmt, ...) do { \ 376 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 377 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 378 } \ 379 } while (0) 380 381 typedef struct drm_pci_id_list 382 { 383 int vendor; 384 int device; 385 long driver_private; 386 char *name; 387 } drm_pci_id_list_t; 388 389 struct drm_msi_blacklist_entry 390 { 391 int vendor; 392 int device; 393 }; 394 395 #define DRM_IOCTL_NR(n) ((n) & 0xff) 396 397 #define DRM_AUTH 0x1 398 #define DRM_MASTER 0x2 399 #define DRM_ROOT_ONLY 0x4 400 #define DRM_CONTROL_ALLOW 0x8 401 #define DRM_UNLOCKED 0x10 402 403 typedef struct drm_ioctl_desc { 404 unsigned long cmd; 405 int (*func)(struct drm_device *dev, void *data, 406 struct drm_file *file_priv); 407 int flags; 408 unsigned int cmd_drv; 409 } drm_ioctl_desc_t; 410 411 /** 412 * Creates a driver or general drm_ioctl_desc array entry for the given 413 * ioctl, for use by drm_ioctl(). 414 */ 415 #define DRM_IOCTL_DEF(ioctl, func, flags) \ 416 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 417 418 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 419 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 420 421 typedef struct drm_magic_entry { 422 drm_magic_t magic; 423 struct drm_file *priv; 424 struct drm_magic_entry *next; 425 } drm_magic_entry_t; 426 427 typedef struct drm_magic_head { 428 struct drm_magic_entry *head; 429 struct drm_magic_entry *tail; 430 } drm_magic_head_t; 431 432 typedef struct drm_buf { 433 int idx; /**< Index into master buflist */ 434 int total; /**< Buffer size */ 435 int order; /**< log-base-2(total) */ 436 int used; /**< Amount of buffer in use (for DMA) */ 437 unsigned long offset; /**< Byte offset (used internally) */ 438 void *address; /**< Address of buffer */ 439 unsigned long bus_address; /**< Bus address of buffer */ 440 struct drm_buf *next; /**< Kernel-only: used for free list */ 441 __volatile__ int waiting; /**< On kernel DMA queue */ 442 __volatile__ int pending; /**< On hardware DMA queue */ 443 struct drm_file *file_priv; /**< Private of holding file descr */ 444 int context; /**< Kernel queue for this buffer */ 445 int while_locked; /**< Dispatch this buffer while locked */ 446 enum { 447 DRM_LIST_NONE = 0, 448 DRM_LIST_FREE = 1, 449 DRM_LIST_WAIT = 2, 450 DRM_LIST_PEND = 3, 451 DRM_LIST_PRIO = 4, 452 DRM_LIST_RECLAIM = 5 453 } list; /**< Which list we're on */ 454 455 int dev_priv_size; /**< Size of buffer private storage */ 456 void *dev_private; /**< Per-buffer private storage */ 457 } drm_buf_t; 458 459 typedef struct drm_freelist { 460 int initialized; /* Freelist in use */ 461 atomic_t count; /* Number of free buffers */ 462 drm_buf_t *next; /* End pointer */ 463 464 int low_mark; /* Low water mark */ 465 int high_mark; /* High water mark */ 466 } drm_freelist_t; 467 468 typedef struct drm_dma_handle { 469 void *vaddr; 470 bus_addr_t busaddr; 471 bus_dma_tag_t tag; 472 bus_dmamap_t map; 473 } drm_dma_handle_t; 474 475 typedef struct drm_buf_entry { 476 int buf_size; 477 int buf_count; 478 drm_buf_t *buflist; 479 int seg_count; 480 drm_dma_handle_t **seglist; 481 int page_order; 482 483 drm_freelist_t freelist; 484 } drm_buf_entry_t; 485 486 /* Event queued up for userspace to read */ 487 struct drm_pending_event { 488 struct drm_event *event; 489 struct list_head link; 490 struct drm_file *file_priv; 491 pid_t pid; /* pid of requester, no guarantee it's valid by the time 492 we deliver the event, for tracing only */ 493 void (*destroy)(struct drm_pending_event *event); 494 }; 495 496 /* initial implementaton using a linked list - todo hashtab */ 497 struct drm_prime_file_private { 498 struct list_head head; 499 #ifdef DUMBBELL_WIP 500 struct mutex lock; 501 #endif /* DUMBBELL_WIP */ 502 }; 503 504 /** File private data */ 505 struct drm_file { 506 int authenticated; 507 struct drm_device *dev; 508 int master; 509 pid_t pid; 510 uid_t uid; 511 drm_magic_t magic; 512 unsigned long ioctl_count; 513 struct list_head lhead; 514 515 /** Mapping of mm object handles to object pointers. */ 516 struct idr object_idr; 517 /** Lock for synchronization of access to object_idr. */ 518 struct lock table_lock; 519 520 void *driver_priv; 521 522 int is_master; 523 struct drm_master *masterp; 524 525 struct list_head fbs; 526 527 struct list_head event_list; 528 int event_space; 529 530 struct drm_prime_file_private prime; 531 }; 532 533 typedef struct drm_lock_data { 534 struct drm_hw_lock *hw_lock; /* Hardware lock */ 535 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/ 536 int lock_queue; /* Queue of blocked processes */ 537 unsigned long lock_time; /* Time of last lock in jiffies */ 538 } drm_lock_data_t; 539 540 /* This structure, in the struct drm_device, is always initialized while the 541 * device 542 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 543 * when set marks that no further bufs may be allocated until device teardown 544 * occurs (when the last open of the device has closed). The high/low 545 * watermarks of bufs are only touched by the X Server, and thus not 546 * concurrently accessed, so no locking is needed. 547 */ 548 typedef struct drm_device_dma { 549 550 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 551 int buf_count; /**< total number of buffers */ 552 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 553 int seg_count; 554 int page_count; /**< number of pages */ 555 unsigned long *pagelist; /**< page list */ 556 unsigned long byte_count; 557 enum { 558 _DRM_DMA_USE_AGP = 0x01, 559 _DRM_DMA_USE_SG = 0x02, 560 _DRM_DMA_USE_FB = 0x04, 561 _DRM_DMA_USE_PCI_RO = 0x08 562 } flags; 563 564 } drm_device_dma_t; 565 566 typedef struct drm_agp_mem { 567 void *handle; 568 unsigned long bound; /* address */ 569 int pages; 570 struct drm_agp_mem *prev; 571 struct drm_agp_mem *next; 572 } drm_agp_mem_t; 573 574 typedef struct drm_agp_head { 575 device_t agpdev; 576 struct agp_info agp_info; 577 const char *chipset; 578 drm_agp_mem_t *memory; 579 unsigned long mode; 580 int enabled; 581 int acquired; 582 unsigned long base; 583 int agp_mtrr; 584 int cant_use_aperture; 585 unsigned long page_mask; 586 } drm_agp_head_t; 587 588 typedef struct drm_sg_mem { 589 vm_offset_t vaddr; 590 vm_paddr_t *busaddr; 591 vm_pindex_t pages; 592 } drm_sg_mem_t; 593 594 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 595 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 596 597 /** 598 * Kernel side of a mapping 599 */ 600 struct drm_local_map { 601 unsigned long offset; /* Physical address (0 for SAREA) */ 602 unsigned long size; /* Physical size (bytes) */ 603 enum drm_map_type type; /* Type of memory mapped */ 604 enum drm_map_flags flags; /* Flags */ 605 void *handle; /* User-space: "Handle" to pass to mmap */ 606 /* Kernel-space: kernel-virtual address */ 607 int mtrr; /* Boolean: MTRR used */ 608 /* Private data */ 609 int rid; /* PCI resource ID for bus_space */ 610 void *virtual; /* Kernel-space: kernel-virtual address */ 611 struct resource *bsr; 612 bus_space_tag_t bst; 613 bus_space_handle_t bsh; 614 drm_dma_handle_t *dmah; 615 TAILQ_ENTRY(drm_local_map) link; 616 }; 617 618 typedef struct drm_local_map drm_local_map_t; 619 620 /** 621 * Mappings list 622 */ 623 struct drm_map_list { 624 struct list_head head; /**< list head */ 625 struct drm_hash_item hash; 626 struct drm_local_map *map; /**< mapping */ 627 uint64_t user_token; 628 struct drm_master *master; 629 struct drm_mm_node *file_offset_node; /**< fake offset */ 630 }; 631 632 struct drm_vblank_info { 633 wait_queue_head_t queue; /* vblank wait queue */ 634 atomic_t count; /* number of VBLANK interrupts */ 635 /* (driver must alloc the right number of counters) */ 636 atomic_t refcount; /* number of users of vblank interrupts */ 637 u32 last; /* protected by dev->vbl_lock, used */ 638 /* for wraparound handling */ 639 int enabled; /* so we don't call enable more than */ 640 /* once per disable */ 641 int inmodeset; /* Display driver is setting mode */ 642 }; 643 644 /* location of GART table */ 645 #define DRM_ATI_GART_MAIN 1 646 #define DRM_ATI_GART_FB 2 647 648 #define DRM_ATI_GART_PCI 1 649 #define DRM_ATI_GART_PCIE 2 650 #define DRM_ATI_GART_IGP 3 651 652 struct drm_ati_pcigart_info { 653 int gart_table_location; 654 int gart_reg_if; 655 void *addr; 656 dma_addr_t bus_addr; 657 dma_addr_t table_mask; 658 dma_addr_t member_mask; 659 struct drm_dma_handle *table_handle; 660 drm_local_map_t mapping; 661 int table_size; 662 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 663 }; 664 665 typedef vm_paddr_t resource_size_t; 666 667 /** 668 * GEM specific mm private for tracking GEM objects 669 */ 670 struct drm_gem_mm { 671 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 672 struct unrhdr *idxunr; 673 }; 674 675 struct drm_gem_object { 676 /** Reference count of this object */ 677 struct kref refcount; 678 679 /** Handle count of this object. Each handle also holds a reference */ 680 atomic_t handle_count; /* number of handles on this object */ 681 682 /** Related drm device */ 683 struct drm_device *dev; 684 685 /** File representing the shmem storage: filp in Linux parlance */ 686 vm_object_t vm_obj; 687 688 bool on_map; 689 struct drm_hash_item map_list; 690 691 /** 692 * Size of the object, in bytes. Immutable over the object's 693 * lifetime. 694 */ 695 size_t size; 696 697 /** 698 * Global name for this object, starts at 1. 0 means unnamed. 699 * Access is covered by the object_name_lock in the related drm_device 700 */ 701 int name; 702 703 /** 704 * Memory domains. These monitor which caches contain read/write data 705 * related to the object. When transitioning from one set of domains 706 * to another, the driver is called to ensure that caches are suitably 707 * flushed and invalidated 708 */ 709 uint32_t read_domains; 710 uint32_t write_domain; 711 712 /** 713 * While validating an exec operation, the 714 * new read/write domain values are computed here. 715 * They will be transferred to the above values 716 * at the point that any cache flushing occurs 717 */ 718 uint32_t pending_read_domains; 719 uint32_t pending_write_domain; 720 721 void *driver_private; 722 723 #ifdef DUMBBELL_WIP 724 /* dma buf exported from this GEM object */ 725 struct dma_buf *export_dma_buf; 726 727 /* dma buf attachment backing this object */ 728 struct dma_buf_attachment *import_attach; 729 #endif /* DUMBBELL_WIP */ 730 }; 731 732 #include "drm_crtc.h" 733 734 /* per-master structure */ 735 struct drm_master { 736 737 struct kref refcount; /* refcount for this master */ 738 739 struct list_head head; /**< each minor contains a list of masters */ 740 struct drm_minor *minor; /**< link back to minor we are a master for */ 741 742 char *unique; /**< Unique identifier: e.g., busid */ 743 int unique_len; /**< Length of unique field */ 744 int unique_size; /**< amount allocated */ 745 746 int blocked; /**< Blocked due to VC switch? */ 747 748 /** \name Authentication */ 749 /*@{ */ 750 struct drm_open_hash magiclist; 751 struct list_head magicfree; 752 /*@} */ 753 754 struct drm_lock_data lock; /**< Information on hardware lock */ 755 756 void *driver_priv; /**< Private structure for driver to use */ 757 }; 758 759 /* Size of ringbuffer for vblank timestamps. Just double-buffer 760 * in initial implementation. 761 */ 762 #define DRM_VBLANKTIME_RBSIZE 2 763 764 /* Flags and return codes for get_vblank_timestamp() driver function. */ 765 #define DRM_CALLED_FROM_VBLIRQ 1 766 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 767 #define DRM_VBLANKTIME_INVBL (1 << 1) 768 769 /* get_scanout_position() return flags */ 770 #define DRM_SCANOUTPOS_VALID (1 << 0) 771 #define DRM_SCANOUTPOS_INVBL (1 << 1) 772 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 773 774 #ifndef DMA_BIT_MASK 775 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 776 #endif 777 778 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 779 780 struct drm_driver { 781 int (*load)(struct drm_device *, unsigned long flags); 782 int (*use_msi)(struct drm_device *, unsigned long flags); 783 int (*firstopen)(struct drm_device *); 784 int (*open)(struct drm_device *, struct drm_file *); 785 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 786 void (*postclose)(struct drm_device *, struct drm_file *); 787 void (*lastclose)(struct drm_device *); 788 int (*unload)(struct drm_device *); 789 void (*reclaim_buffers_locked)(struct drm_device *, 790 struct drm_file *file_priv); 791 int (*dma_ioctl)(struct drm_device *dev, void *data, 792 struct drm_file *file_priv); 793 void (*dma_ready)(struct drm_device *); 794 int (*dma_quiescent)(struct drm_device *); 795 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 796 enum drm_lock_flags flags); 797 int (*dma_flush_unblock)(struct drm_device *, int context, 798 enum drm_lock_flags flags); 799 int (*context_ctor)(struct drm_device *dev, int context); 800 int (*context_dtor)(struct drm_device *dev, int context); 801 int (*kernel_context_switch)(struct drm_device *dev, int old, 802 int new); 803 int (*kernel_context_switch_unlock)(struct drm_device *dev); 804 void (*irq_preinstall)(struct drm_device *dev); 805 int (*irq_postinstall)(struct drm_device *dev); 806 void (*irq_uninstall)(struct drm_device *dev); 807 void (*irq_handler)(DRM_IRQ_ARGS); 808 809 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 810 int (*enable_vblank)(struct drm_device *dev, int crtc); 811 void (*disable_vblank)(struct drm_device *dev, int crtc); 812 int (*get_scanout_position)(struct drm_device *dev, int crtc, 813 int *vpos, int *hpos); 814 815 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 816 int *max_error, struct timeval *vblank_time, 817 unsigned flags); 818 819 int (*gem_init_object)(struct drm_gem_object *obj); 820 void (*gem_free_object)(struct drm_gem_object *obj); 821 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 822 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 823 824 struct cdev_pager_ops *gem_pager_ops; 825 826 int (*dumb_create)(struct drm_file *file_priv, 827 struct drm_device *dev, struct drm_mode_create_dumb *args); 828 int (*dumb_map_offset)(struct drm_file *file_priv, 829 struct drm_device *dev, uint32_t handle, uint64_t *offset); 830 int (*dumb_destroy)(struct drm_file *file_priv, 831 struct drm_device *dev, uint32_t handle); 832 833 int (*sysctl_init)(struct drm_device *dev, 834 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 835 void (*sysctl_cleanup)(struct drm_device *dev); 836 837 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 838 839 /** 840 * Called by \c drm_device_is_agp. Typically used to determine if a 841 * card is really attached to AGP or not. 842 * 843 * \param dev DRM device handle 844 * 845 * \returns 846 * One of three values is returned depending on whether or not the 847 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 848 * (return of 1), or may or may not be AGP (return of 2). 849 */ 850 int (*device_is_agp) (struct drm_device * dev); 851 852 drm_ioctl_desc_t *ioctls; 853 #ifdef COMPAT_FREEBSD32 854 drm_ioctl_desc_t *compat_ioctls; 855 int *compat_ioctls_nr; 856 #endif 857 int max_ioctl; 858 859 int buf_priv_size; 860 861 int major; 862 int minor; 863 int patchlevel; 864 const char *name; /* Simple driver name */ 865 const char *desc; /* Longer driver name */ 866 const char *date; /* Date of last major changes. */ 867 868 u32 driver_features; 869 }; 870 871 /** 872 * DRM minor structure. This structure represents a drm minor number. 873 */ 874 struct drm_minor { 875 int index; /**< Minor device number */ 876 int type; /**< Control or render */ 877 device_t kdev; /**< OS device */ 878 struct drm_device *dev; 879 880 struct drm_master *master; /* currently active master for this node */ 881 struct list_head master_list; 882 struct drm_mode_group mode_group; 883 }; 884 885 /* mode specified on the command line */ 886 struct drm_cmdline_mode { 887 bool specified; 888 bool refresh_specified; 889 bool bpp_specified; 890 int xres, yres; 891 int bpp; 892 int refresh; 893 bool rb; 894 bool interlace; 895 bool cvt; 896 bool margins; 897 enum drm_connector_force force; 898 }; 899 900 901 struct drm_pending_vblank_event { 902 struct drm_pending_event base; 903 int pipe; 904 struct drm_event_vblank event; 905 }; 906 907 /* Length for the array of resource pointers for drm_get_resource_*. */ 908 #define DRM_MAX_PCI_RESOURCE 6 909 910 /** 911 * DRM device structure. This structure represent a complete card that 912 * may contain multiple heads. 913 */ 914 struct drm_device { 915 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 916 917 uint16_t pci_device; /* PCI device id */ 918 uint16_t pci_vendor; /* PCI vendor id */ 919 uint16_t pci_subdevice; /* PCI subsystem device id */ 920 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 921 922 char *unique; /* Unique identifier: e.g., busid */ 923 int unique_len; /* Length of unique field */ 924 struct cdev *devnode; /* Device number for mknod */ 925 int if_version; /* Highest interface version set */ 926 927 int flags; /* Flags to open(2) */ 928 929 /* Locks */ 930 struct spinlock dma_lock; /* protects dev->dma */ 931 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 932 struct lock dev_lock; /* protects everything else */ 933 struct lock dev_struct_lock; 934 935 /* Usage Counters */ 936 int open_count; /* Outstanding files open */ 937 int buf_use; /* Buffers in use -- cannot alloc */ 938 939 /* Performance counters */ 940 unsigned long counters; 941 enum drm_stat_type types[15]; 942 atomic_t counts[15]; 943 944 /* Authentication */ 945 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 946 947 struct list_head filelist; 948 949 /** \name Memory management */ 950 /*@{ */ 951 struct list_head maplist; /**< Linked list of regions */ 952 struct unrhdr *map_unrhdr; 953 954 drm_local_map_t **context_sareas; 955 int max_context; 956 957 drm_lock_data_t lock; /* Information on hardware lock */ 958 959 /* DMA queues (contexts) */ 960 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 961 962 /* Context support */ 963 int irq; /* Interrupt used by board */ 964 int msi_enabled; /* MSI enabled */ 965 int irqrid; /* Interrupt used by board */ 966 struct resource *irqr; /* Resource for interrupt used by board */ 967 void *irqh; /* Handle from bus_setup_intr */ 968 969 /* Storage of resource pointers for drm_get_resource_* */ 970 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 971 int pcirid[DRM_MAX_PCI_RESOURCE]; 972 973 int pci_domain; 974 int pci_bus; 975 int pci_slot; 976 int pci_func; 977 978 /** \name Context support */ 979 /*@{ */ 980 int irq_enabled; /**< True if irq handler is enabled */ 981 __volatile__ long context_flag; /**< Context swapping flag */ 982 int last_context; /**< Last current context */ 983 /*@} */ 984 985 int num_crtcs; 986 987 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 988 989 /* Sysctl support */ 990 struct drm_sysctl_info *sysctl; 991 int sysctl_node_idx; 992 993 drm_agp_head_t *agp; 994 995 struct device *dev; /**< Device structure */ 996 997 drm_sg_mem_t *sg; /* Scatter gather memory */ 998 unsigned long *ctx_bitmap; 999 void *dev_private; 1000 1001 void *drm_ttm_bdev; 1002 1003 int vblank_disable_allowed; 1004 1005 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 1006 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 1007 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 1008 struct lock vbl_lock; 1009 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 1010 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 1011 /* for wraparound handling */ 1012 int *vblank_enabled; /* so we don't call enable more than 1013 once per disable */ 1014 int *vblank_inmodeset; /* Display driver is setting mode */ 1015 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 1016 struct callout vblank_disable_callout; 1017 1018 u32 max_vblank_count; /**< size of vblank counter register */ 1019 1020 struct list_head vblank_event_list; 1021 struct lock event_lock; 1022 1023 struct drm_driver *driver; 1024 struct drm_local_map *agp_buffer_map; 1025 unsigned int agp_buffer_token; 1026 struct drm_minor *control; /**< Control node for card */ 1027 struct drm_minor *primary; /**< render type primary screen head */ 1028 1029 struct drm_mode_config mode_config; /**< Current mode config */ 1030 1031 /** \name GEM information */ 1032 /*@{ */ 1033 struct lock object_name_lock; 1034 struct idr object_name_idr; 1035 /*@} */ 1036 void *mm_private; 1037 1038 void *sysctl_private; 1039 char busid_str[128]; 1040 int modesetting; 1041 1042 int switch_power_state; 1043 }; 1044 1045 #define DRM_SWITCH_POWER_ON 0 1046 #define DRM_SWITCH_POWER_OFF 1 1047 #define DRM_SWITCH_POWER_CHANGING 2 1048 1049 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1050 int feature) 1051 { 1052 return ((dev->driver->driver_features & feature) ? 1 : 0); 1053 } 1054 1055 #if __OS_HAS_AGP 1056 static inline int drm_core_has_AGP(struct drm_device *dev) 1057 { 1058 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1059 } 1060 #else 1061 #define drm_core_has_AGP(dev) (0) 1062 #endif 1063 1064 enum dmi_field { 1065 DMI_NONE, 1066 DMI_BIOS_VENDOR, 1067 DMI_BIOS_VERSION, 1068 DMI_BIOS_DATE, 1069 DMI_SYS_VENDOR, 1070 DMI_PRODUCT_NAME, 1071 DMI_PRODUCT_VERSION, 1072 DMI_PRODUCT_SERIAL, 1073 DMI_PRODUCT_UUID, 1074 DMI_BOARD_VENDOR, 1075 DMI_BOARD_NAME, 1076 DMI_BOARD_VERSION, 1077 DMI_BOARD_SERIAL, 1078 DMI_BOARD_ASSET_TAG, 1079 DMI_CHASSIS_VENDOR, 1080 DMI_CHASSIS_TYPE, 1081 DMI_CHASSIS_VERSION, 1082 DMI_CHASSIS_SERIAL, 1083 DMI_CHASSIS_ASSET_TAG, 1084 DMI_STRING_MAX, 1085 }; 1086 1087 struct dmi_strmatch { 1088 unsigned char slot; 1089 char substr[79]; 1090 }; 1091 1092 struct dmi_system_id { 1093 int (*callback)(const struct dmi_system_id *); 1094 const char *ident; 1095 struct dmi_strmatch matches[4]; 1096 }; 1097 #define DMI_MATCH(a, b) {(a), (b)} 1098 bool dmi_check_system(const struct dmi_system_id *); 1099 1100 extern int drm_notyet_flag; 1101 extern int drm_debug; 1102 1103 extern unsigned int drm_vblank_offdelay; 1104 extern unsigned int drm_timestamp_precision; 1105 extern unsigned int drm_timestamp_monotonic; 1106 1107 /* Device setup support (drm_drv.c) */ 1108 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1109 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1110 int drm_create_cdevs(device_t kdev); 1111 int drm_detach(device_t kdev); 1112 d_ioctl_t drm_ioctl; 1113 d_open_t drm_open; 1114 d_close_t drm_close; 1115 d_read_t drm_read; 1116 d_kqfilter_t drm_kqfilter; 1117 d_mmap_t drm_mmap; 1118 d_mmap_single_t drm_mmap_single; 1119 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1120 1121 void drm_event_wakeup(struct drm_pending_event *e); 1122 1123 int drm_add_busid_modesetting(struct drm_device *dev, 1124 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1125 1126 /* File operations helpers (drm_fops.c) */ 1127 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1128 DRM_STRUCTPROC *p, 1129 struct drm_device *dev); 1130 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1131 DRM_STRUCTPROC *p); 1132 1133 #ifdef DUMBBELL_WIP 1134 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1135 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1136 int *prime_fd); 1137 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1138 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1139 1140 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1141 struct drm_file *file_priv); 1142 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1143 struct drm_file *file_priv); 1144 1145 #ifdef DUMBBELL_WIP 1146 /* 1147 * See drm_prime.c 1148 * -- dumbbell@ 1149 */ 1150 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1151 dma_addr_t *addrs, int max_pages); 1152 #endif /* DUMBBELL_WIP */ 1153 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1154 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1155 1156 1157 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1158 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1159 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1160 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1161 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1162 1163 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1164 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1165 struct drm_gem_object **obj); 1166 #endif /* DUMBBELL_WIP */ 1167 1168 /* Memory management support (drm_memory.c) */ 1169 void drm_mem_init(void); 1170 void drm_mem_uninit(void); 1171 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1172 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1173 void drm_ioremapfree(drm_local_map_t *map); 1174 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1175 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1176 1177 int drm_ctxbitmap_init(struct drm_device *dev); 1178 void drm_ctxbitmap_cleanup(struct drm_device *dev); 1179 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1180 int drm_ctxbitmap_next(struct drm_device *dev); 1181 1182 /* Locking IOCTL support (drm_lock.c) */ 1183 int drm_lock_take(struct drm_lock_data *lock_data, 1184 unsigned int context); 1185 int drm_lock_transfer(struct drm_lock_data *lock_data, 1186 unsigned int context); 1187 int drm_lock_free(struct drm_lock_data *lock_data, 1188 unsigned int context); 1189 1190 /* 1191 * These are exported to drivers so that they can implement fencing using 1192 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1193 */ 1194 1195 unsigned long drm_get_resource_start(struct drm_device *dev, 1196 unsigned int resource); 1197 unsigned long drm_get_resource_len(struct drm_device *dev, 1198 unsigned int resource); 1199 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1200 int drm_order(unsigned long size); 1201 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1202 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1203 extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1204 unsigned int size, enum drm_map_type type, 1205 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1206 1207 /* DMA support (drm_dma.c) */ 1208 int drm_dma_setup(struct drm_device *dev); 1209 void drm_dma_takedown(struct drm_device *dev); 1210 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1211 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1212 #define drm_core_reclaim_buffers drm_reclaim_buffers 1213 1214 /* IRQ support (drm_irq.h) */ 1215 int drm_irq_install(struct drm_device *dev); 1216 int drm_irq_uninstall(struct drm_device *dev); 1217 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 1218 void drm_driver_irq_preinstall(struct drm_device *dev); 1219 void drm_driver_irq_postinstall(struct drm_device *dev); 1220 void drm_driver_irq_uninstall(struct drm_device *dev); 1221 1222 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1223 void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1224 int drm_modeset_ctl(struct drm_device *dev, void *data, 1225 struct drm_file *file_priv); 1226 1227 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1228 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1229 struct drm_file *filp); 1230 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1231 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1232 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1233 struct timeval *vblanktime); 1234 extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1235 struct drm_pending_vblank_event *e); 1236 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1237 void drm_handle_vblank_events(struct drm_device *dev, int crtc); 1238 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1239 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1240 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1241 extern void drm_vblank_cleanup(struct drm_device *dev); 1242 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1243 struct timeval *tvblank, unsigned flags); 1244 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1245 int crtc, int *max_error, 1246 struct timeval *vblank_time, 1247 unsigned flags, 1248 struct drm_crtc *refcrtc); 1249 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1250 1251 struct timeval ns_to_timeval(const int64_t nsec); 1252 int64_t timeval_to_ns(const struct timeval *tv); 1253 1254 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1255 int drm_device_is_agp(struct drm_device *dev); 1256 int drm_device_is_pcie(struct drm_device *dev); 1257 drm_agp_head_t *drm_agp_init(void); 1258 int drm_agp_acquire(struct drm_device *dev); 1259 int drm_agp_release(struct drm_device *dev); 1260 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 1261 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1262 void *drm_agp_allocate_memory(size_t pages, u32 type); 1263 int drm_agp_free_memory(void *handle); 1264 int drm_agp_bind_memory(void *handle, off_t start); 1265 int drm_agp_unbind_memory(void *handle); 1266 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1267 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1268 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1269 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1270 1271 /* Scatter Gather Support (drm_scatter.c) */ 1272 void drm_sg_cleanup(drm_sg_mem_t *entry); 1273 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1274 1275 /* sysctl support (drm_sysctl.h) */ 1276 extern int drm_sysctl_init(struct drm_device *dev); 1277 extern int drm_sysctl_cleanup(struct drm_device *dev); 1278 1279 /* ATI PCIGART support (ati_pcigart.c) */ 1280 int drm_ati_pcigart_init(struct drm_device *dev, 1281 struct drm_ati_pcigart_info *gart_info); 1282 int drm_ati_pcigart_cleanup(struct drm_device *dev, 1283 struct drm_ati_pcigart_info *gart_info); 1284 1285 /* Cache management (drm_memory.c) */ 1286 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1287 1288 /* Locking IOCTL support (drm_drv.c) */ 1289 int drm_lock(struct drm_device *dev, void *data, 1290 struct drm_file *file_priv); 1291 int drm_unlock(struct drm_device *dev, void *data, 1292 struct drm_file *file_priv); 1293 int drm_version(struct drm_device *dev, void *data, 1294 struct drm_file *file_priv); 1295 int drm_setversion(struct drm_device *dev, void *data, 1296 struct drm_file *file_priv); 1297 1298 /* Misc. IOCTL support (drm_ioctl.c) */ 1299 int drm_irq_by_busid(struct drm_device *dev, void *data, 1300 struct drm_file *file_priv); 1301 int drm_getunique(struct drm_device *dev, void *data, 1302 struct drm_file *file_priv); 1303 int drm_setunique(struct drm_device *dev, void *data, 1304 struct drm_file *file_priv); 1305 int drm_getmap(struct drm_device *dev, void *data, 1306 struct drm_file *file_priv); 1307 int drm_getclient(struct drm_device *dev, void *data, 1308 struct drm_file *file_priv); 1309 int drm_getstats(struct drm_device *dev, void *data, 1310 struct drm_file *file_priv); 1311 int drm_getcap(struct drm_device *dev, void *data, 1312 struct drm_file *file_priv); 1313 int drm_noop(struct drm_device *dev, void *data, 1314 struct drm_file *file_priv); 1315 1316 /* Context IOCTL support (drm_context.c) */ 1317 int drm_resctx(struct drm_device *dev, void *data, 1318 struct drm_file *file_priv); 1319 int drm_addctx(struct drm_device *dev, void *data, 1320 struct drm_file *file_priv); 1321 int drm_modctx(struct drm_device *dev, void *data, 1322 struct drm_file *file_priv); 1323 int drm_getctx(struct drm_device *dev, void *data, 1324 struct drm_file *file_priv); 1325 int drm_switchctx(struct drm_device *dev, void *data, 1326 struct drm_file *file_priv); 1327 int drm_newctx(struct drm_device *dev, void *data, 1328 struct drm_file *file_priv); 1329 int drm_rmctx(struct drm_device *dev, void *data, 1330 struct drm_file *file_priv); 1331 int drm_setsareactx(struct drm_device *dev, void *data, 1332 struct drm_file *file_priv); 1333 int drm_getsareactx(struct drm_device *dev, void *data, 1334 struct drm_file *file_priv); 1335 1336 /* Authentication IOCTL support (drm_auth.c) */ 1337 int drm_getmagic(struct drm_device *dev, void *data, 1338 struct drm_file *file_priv); 1339 int drm_authmagic(struct drm_device *dev, void *data, 1340 struct drm_file *file_priv); 1341 1342 /* Buffer management support (drm_bufs.c) */ 1343 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1344 struct drm_file *file_priv); 1345 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1346 struct drm_file *file_priv); 1347 int drm_addbufs(struct drm_device *dev, void *data, 1348 struct drm_file *file_priv); 1349 int drm_infobufs(struct drm_device *dev, void *data, 1350 struct drm_file *file_priv); 1351 int drm_markbufs(struct drm_device *dev, void *data, 1352 struct drm_file *file_priv); 1353 int drm_freebufs(struct drm_device *dev, void *data, 1354 struct drm_file *file_priv); 1355 int drm_mapbufs(struct drm_device *dev, void *data, 1356 struct drm_file *file_priv); 1357 1358 /* DMA support (drm_dma.c) */ 1359 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1360 1361 /* IRQ support (drm_irq.c) */ 1362 int drm_control(struct drm_device *dev, void *data, 1363 struct drm_file *file_priv); 1364 1365 /* AGP/GART support (drm_agpsupport.c) */ 1366 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1367 struct drm_file *file_priv); 1368 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1369 struct drm_file *file_priv); 1370 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1371 struct drm_file *file_priv); 1372 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1373 struct drm_file *file_priv); 1374 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1375 struct drm_file *file_priv); 1376 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1377 struct drm_file *file_priv); 1378 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1379 struct drm_file *file_priv); 1380 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1381 struct drm_file *file_priv); 1382 1383 /* Stub support (drm_stub.h) */ 1384 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1385 struct drm_file *file_priv); 1386 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1387 struct drm_file *file_priv); 1388 1389 /* Scatter Gather Support (drm_scatter.c) */ 1390 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1391 struct drm_file *file_priv); 1392 int drm_sg_free(struct drm_device *dev, void *data, 1393 struct drm_file *file_priv); 1394 1395 /* consistent PCI memory functions (drm_pci.c) */ 1396 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1397 size_t align, dma_addr_t maxaddr); 1398 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1399 1400 /* sysfs support (drm_sysfs.c) */ 1401 extern char *drm_get_connector_status_name(enum drm_connector_status status); 1402 1403 /* Graphics Execution Manager library functions (drm_gem.c) */ 1404 int drm_gem_init(struct drm_device *dev); 1405 void drm_gem_destroy(struct drm_device *dev); 1406 void drm_gem_object_release(struct drm_gem_object *obj); 1407 void drm_gem_object_free(struct kref *kref); 1408 1409 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1410 struct drm_file *file_priv); 1411 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1412 struct drm_file *file_priv); 1413 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1414 struct drm_file *file_priv); 1415 void drm_gem_object_handle_free(struct drm_gem_object *obj); 1416 1417 #include <drm/drm_global.h> 1418 1419 static inline void 1420 drm_gem_object_reference(struct drm_gem_object *obj) 1421 { 1422 kref_get(&obj->refcount); 1423 } 1424 1425 static inline void 1426 drm_gem_object_unreference(struct drm_gem_object *obj) 1427 { 1428 if (obj != NULL) 1429 kref_put(&obj->refcount, drm_gem_object_free); 1430 } 1431 1432 static inline void 1433 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1434 { 1435 if (obj != NULL) { 1436 struct drm_device *dev = obj->dev; 1437 DRM_LOCK(dev); 1438 kref_put(&obj->refcount, drm_gem_object_free); 1439 DRM_UNLOCK(dev); 1440 } 1441 } 1442 1443 int drm_gem_handle_create(struct drm_file *file_priv, 1444 struct drm_gem_object *obj, 1445 u32 *handlep); 1446 int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1447 1448 static inline void 1449 drm_gem_object_handle_reference(struct drm_gem_object *obj) 1450 { 1451 drm_gem_object_reference(obj); 1452 atomic_inc(&obj->handle_count); 1453 } 1454 1455 static inline void 1456 drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1457 { 1458 if (obj == NULL) 1459 return; 1460 1461 if (atomic_read(&obj->handle_count) == 0) 1462 return; 1463 /* 1464 * Must bump handle count first as this may be the last 1465 * ref, in which case the object would disappear before we 1466 * checked for a name 1467 */ 1468 if (atomic_dec_and_test(&obj->handle_count)) 1469 drm_gem_object_handle_free(obj); 1470 drm_gem_object_unreference(obj); 1471 } 1472 1473 static inline void 1474 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) 1475 { 1476 if (obj == NULL) 1477 return; 1478 1479 if (atomic_read(&obj->handle_count) == 0) 1480 return; 1481 1482 /* 1483 * Must bump handle count first as this may be the last 1484 * ref, in which case the object would disappear before we 1485 * checked for a name 1486 */ 1487 1488 if (atomic_dec_and_test(&obj->handle_count)) 1489 drm_gem_object_handle_free(obj); 1490 drm_gem_object_unreference_unlocked(obj); 1491 } 1492 1493 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, 1494 size_t size); 1495 int drm_gem_private_object_init(struct drm_device *dev, 1496 struct drm_gem_object *obj, size_t size); 1497 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1498 size_t size); 1499 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1500 struct drm_file *file_priv, uint32_t handle); 1501 1502 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1503 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1504 1505 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1506 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1507 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1508 vm_size_t size, struct vm_object **obj_res, int nprot); 1509 void drm_gem_pager_dtr(void *obj); 1510 1511 struct ttm_bo_device; 1512 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1513 vm_size_t size, struct vm_object **obj_res, int nprot); 1514 struct ttm_buffer_object; 1515 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1516 1517 void drm_device_lock_mtx(struct drm_device *dev); 1518 void drm_device_unlock_mtx(struct drm_device *dev); 1519 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1520 const char *msg, int timeout); 1521 void drm_device_assert_mtx_locked(struct drm_device *dev); 1522 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1523 1524 void drm_device_lock_struct(struct drm_device *dev); 1525 void drm_device_unlock_struct(struct drm_device *dev); 1526 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1527 const char *msg, int timeout); 1528 void drm_device_assert_struct_locked(struct drm_device *dev); 1529 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1530 1531 void drm_compat_locking_init(struct drm_device *dev); 1532 void drm_sleep_locking_init(struct drm_device *dev); 1533 1534 /* drm_modes.c */ 1535 bool drm_mode_parse_command_line_for_connector(const char *mode_option, 1536 struct drm_connector *connector, struct drm_cmdline_mode *mode); 1537 struct drm_display_mode *drm_mode_create_from_cmdline_mode( 1538 struct drm_device *dev, struct drm_cmdline_mode *cmd); 1539 1540 /* Inline replacements for drm_alloc and friends */ 1541 static __inline__ void * 1542 drm_alloc(size_t size, struct malloc_type *area) 1543 { 1544 return kmalloc(size, area, M_NOWAIT); 1545 } 1546 1547 static __inline__ void * 1548 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1549 { 1550 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO); 1551 } 1552 1553 static __inline__ void * 1554 drm_realloc(void *oldpt, size_t oldsize, size_t size, 1555 struct malloc_type *area) 1556 { 1557 void *res; 1558 res = krealloc(oldpt, size, area, M_NOWAIT); 1559 if (res == NULL && oldpt != NULL) 1560 kfree(oldpt,area); 1561 return res; 1562 } 1563 1564 static __inline__ void 1565 drm_free(void *pt, struct malloc_type *area) 1566 { 1567 if (pt != NULL) 1568 kfree(pt, area); 1569 } 1570 1571 /* Inline replacements for DRM_IOREMAP macros */ 1572 static __inline__ void 1573 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1574 { 1575 map->virtual = drm_ioremap_wc(dev, map); 1576 } 1577 static __inline__ void 1578 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1579 { 1580 map->virtual = drm_ioremap(dev, map); 1581 } 1582 static __inline__ void 1583 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1584 { 1585 if ( map->virtual && map->size ) 1586 drm_ioremapfree(map); 1587 } 1588 1589 static __inline__ struct drm_local_map * 1590 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1591 { 1592 struct drm_map_list *_entry; 1593 1594 list_for_each_entry(_entry, &dev->maplist, head) { 1595 if (offset == (unsigned long)_entry->map->handle) 1596 return _entry->map; 1597 } 1598 return NULL; 1599 } 1600 1601 static __inline__ void drm_core_dropmap(struct drm_map *map) 1602 { 1603 } 1604 1605 /* FreeBSD compatibility macros */ 1606 #define PROC_LOCK(p) 1607 #define PROC_UNLOCK(p) 1608 1609 #define VM_OBJECT_RLOCK(object) VM_OBJECT_LOCK(object) 1610 #define VM_OBJECT_RUNLOCK(object) VM_OBJECT_UNLOCK(object) 1611 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1612 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1613 1614 #define CTR2(one,two,three,four) 1615 1616 #define DRM_PCIE_SPEED_25 1 1617 #define DRM_PCIE_SPEED_50 2 1618 #define DRM_PCIE_SPEED_80 4 1619 1620 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1621 1622 #define drm_can_sleep() (DRM_HZ & 1) 1623 1624 #endif /* __KERNEL__ */ 1625 #endif /* _DRM_P_H_ */ 1626