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 struct drm_file; 104 struct drm_device; 105 106 #include "drm_os_freebsd.h" 107 #include "drm_hashtab.h" 108 #include "drm_mm.h" 109 110 #define DRM_UT_CORE 0x01 111 #define DRM_UT_DRIVER 0x02 112 #define DRM_UT_KMS 0x04 113 #define DRM_UT_PRIME 0x08 114 115 #ifdef DRM_DEBUG 116 #undef DRM_DEBUG 117 #define DRM_DEBUG_DEFAULT_ON 1 118 #endif /* DRM_DEBUG */ 119 120 #define DRM_DEBUGBITS_DEBUG 0x1 121 #define DRM_DEBUGBITS_KMS 0x2 122 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 123 124 #undef DRM_LINUX 125 #define DRM_LINUX 0 126 127 /***********************************************************************/ 128 /** \name DRM template customization defaults */ 129 /*@{*/ 130 131 /* driver capabilities and requirements mask */ 132 #define DRIVER_USE_AGP 0x1 133 #define DRIVER_REQUIRE_AGP 0x2 134 #define DRIVER_USE_MTRR 0x4 135 #define DRIVER_PCI_DMA 0x8 136 #define DRIVER_SG 0x10 137 #define DRIVER_HAVE_DMA 0x20 138 #define DRIVER_HAVE_IRQ 0x40 139 #define DRIVER_IRQ_SHARED 0x80 140 #define DRIVER_IRQ_VBL 0x100 141 #define DRIVER_DMA_QUEUE 0x200 142 #define DRIVER_FB_DMA 0x400 143 #define DRIVER_IRQ_VBL2 0x800 144 #define DRIVER_GEM 0x1000 145 #define DRIVER_MODESET 0x2000 146 #define DRIVER_PRIME 0x4000 147 #define DRIVER_LOCKLESS_IRQ 0x8000 148 149 150 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 151 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 152 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 153 154 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 155 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 156 #define DRM_GEM_MAX_IDX 0x3fffff 157 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 158 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 159 #define DRM_GEM_MAPPING_MAPOFF(o) \ 160 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 161 162 MALLOC_DECLARE(DRM_MEM_DMA); 163 MALLOC_DECLARE(DRM_MEM_SAREA); 164 MALLOC_DECLARE(DRM_MEM_DRIVER); 165 MALLOC_DECLARE(DRM_MEM_MAGIC); 166 MALLOC_DECLARE(DRM_MEM_MAPS); 167 MALLOC_DECLARE(DRM_MEM_BUFS); 168 MALLOC_DECLARE(DRM_MEM_SEGS); 169 MALLOC_DECLARE(DRM_MEM_PAGES); 170 MALLOC_DECLARE(DRM_MEM_FILES); 171 MALLOC_DECLARE(DRM_MEM_BUFLISTS); 172 MALLOC_DECLARE(DRM_MEM_AGPLISTS); 173 MALLOC_DECLARE(DRM_MEM_CTXBITMAP); 174 MALLOC_DECLARE(DRM_MEM_SGLISTS); 175 MALLOC_DECLARE(DRM_MEM_MM); 176 MALLOC_DECLARE(DRM_MEM_HASHTAB); 177 MALLOC_DECLARE(DRM_MEM_KMS); 178 179 SYSCTL_DECL(_hw_drm); 180 181 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 182 183 /***********************************************************************/ 184 /** \name Internal types and structures */ 185 /*@{*/ 186 187 #define DRM_ARRAY_SIZE(x) NELEM(x) 188 #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 189 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 190 191 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 192 193 #define __OS_HAS_AGP 1 194 195 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 196 #define DRM_DEV_UID 0 197 #define DRM_DEV_GID 0 198 199 #define wait_queue_head_t atomic_t 200 #define DRM_WAKEUP(w) wakeup((void *)w) 201 #define DRM_WAKEUP_INT(w) wakeup(w) 202 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 203 204 #define DRM_CURPROC curthread 205 #define DRM_STRUCTPROC struct thread 206 #define DRM_CURRENTPID curthread->td_proc->p_pid 207 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE) 208 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE) 209 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 210 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout))) 211 #if defined(INVARIANTS) 212 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0); 213 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0); 214 #else 215 #define DRM_LOCK_ASSERT(d) 216 #define DRM_UNLOCK_ASSERT(d) 217 #endif 218 219 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 220 221 #define DRM_IRQ_ARGS void *arg 222 typedef void irqreturn_t; 223 #define IRQ_HANDLED /* nothing */ 224 #define IRQ_NONE /* nothing */ 225 226 enum { 227 DRM_IS_NOT_AGP, 228 DRM_IS_AGP, 229 DRM_MIGHT_BE_AGP 230 }; 231 #define DRM_AGP_MEM struct agp_memory_info 232 233 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 234 235 #define PAGE_ALIGN(addr) round_page(addr) 236 /* DRM_SUSER returns true if the user is superuser */ 237 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 238 #define DRM_AGP_FIND_DEVICE() agp_find_device() 239 #define DRM_MTRR_WC MDF_WRITECOMBINE 240 #define jiffies ticks 241 #define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz) 242 #define msecs_to_jiffies(x) (((int64_t)(x)) * hz / 1000) 243 #define time_after(a,b) ((long)(b) - (long)(a) < 0) 244 #define time_after_eq(a,b) ((long)(b) - (long)(a) <= 0) 245 246 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 247 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 248 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 249 */ 250 #define DRM_READMEMORYBARRIER() cpu_lfence() 251 #define DRM_WRITEMEMORYBARRIER() cpu_sfence() 252 #define DRM_MEMORYBARRIER() cpu_mfence() 253 254 #define DRM_READ8(map, offset) \ 255 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 256 (vm_offset_t)(offset)) 257 #define DRM_READ16(map, offset) \ 258 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 259 (vm_offset_t)(offset))) 260 #define DRM_READ32(map, offset) \ 261 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 262 (vm_offset_t)(offset))) 263 #define DRM_READ64(map, offset) \ 264 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 265 (vm_offset_t)(offset))) 266 #define DRM_WRITE8(map, offset, val) \ 267 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 268 (vm_offset_t)(offset)) = val 269 #define DRM_WRITE16(map, offset, val) \ 270 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 271 (vm_offset_t)(offset)) = htole16(val) 272 #define DRM_WRITE32(map, offset, val) \ 273 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 274 (vm_offset_t)(offset)) = htole32(val) 275 #define DRM_WRITE64(map, offset, val) \ 276 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 277 (vm_offset_t)(offset)) = htole64(val) 278 279 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 280 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 281 282 #define DRM_COPY_TO_USER(user, kern, size) \ 283 copyout(kern, user, size) 284 #define DRM_COPY_FROM_USER(kern, user, size) \ 285 copyin(user, kern, size) 286 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 287 copyin(arg2, arg1, arg3) 288 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 289 copyout(arg2, arg1, arg3) 290 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 291 ((val) = fuword32(uaddr), 0) 292 293 #define drm_can_sleep() (DRM_HZ & 1) 294 295 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 296 (_map) = (_dev)->context_sareas[_ctx]; \ 297 } while(0) 298 299 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 300 do { \ 301 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 302 dev->lock.file_priv != file_priv) { \ 303 DRM_ERROR("%s called without lock held\n", \ 304 __FUNCTION__); \ 305 return EINVAL; \ 306 } \ 307 } while (0) 308 309 /* Returns -errno to shared code */ 310 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 311 for ( ret = 0 ; !ret && !(condition) ; ) { \ 312 DRM_UNLOCK(dev); \ 313 lwkt_serialize_enter(&dev->irq_lock); \ 314 if (!(condition)) { \ 315 tsleep_interlock(&(queue), PCATCH); \ 316 lwkt_serialize_exit(&dev->irq_lock); \ 317 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 318 "drmwtq", (timeout)); \ 319 } else { \ 320 lwkt_serialize_exit(&dev->irq_lock); \ 321 } \ 322 DRM_LOCK(dev); \ 323 } 324 325 __inline static void 326 vm_page_unhold_pages(vm_page_t *ma, int count) 327 { 328 int i; 329 330 for (i = 0; i < count; i++) 331 vm_page_unhold(ma[i]); 332 } 333 334 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 335 vm_memattr_t memattr); 336 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 337 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 338 339 #define DRM_ERROR(fmt, ...) \ 340 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 341 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 342 343 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 344 345 #define DRM_DEBUG(fmt, ...) do { \ 346 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 347 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 348 __func__ , ##__VA_ARGS__); \ 349 } while (0) 350 351 #define DRM_DEBUG_KMS(fmt, ...) do { \ 352 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 353 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 354 __func__ , ##__VA_ARGS__); \ 355 } while (0) 356 357 #define DRM_DEBUG_DRIVER(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 dev_err(dev, fmt, ...) \ 364 device_printf((dev), "error: " fmt, ## __VA_ARGS__) 365 #define dev_warn(dev, fmt, ...) \ 366 device_printf((dev), "warning: " fmt, ## __VA_ARGS__) 367 #define dev_info(dev, fmt, ...) \ 368 device_printf((dev), "info: " fmt, ## __VA_ARGS__) 369 #define dev_dbg(dev, fmt, ...) do { \ 370 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 371 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 372 } \ 373 } while (0) 374 375 typedef struct drm_pci_id_list 376 { 377 int vendor; 378 int device; 379 long driver_private; 380 char *name; 381 } drm_pci_id_list_t; 382 383 struct drm_msi_blacklist_entry 384 { 385 int vendor; 386 int device; 387 }; 388 389 #define DRM_AUTH 0x1 390 #define DRM_MASTER 0x2 391 #define DRM_ROOT_ONLY 0x4 392 #define DRM_CONTROL_ALLOW 0x8 393 #define DRM_UNLOCKED 0x10 394 395 typedef struct drm_ioctl_desc { 396 unsigned long cmd; 397 int (*func)(struct drm_device *dev, void *data, 398 struct drm_file *file_priv); 399 int flags; 400 unsigned int cmd_drv; 401 } drm_ioctl_desc_t; 402 403 /** 404 * Creates a driver or general drm_ioctl_desc array entry for the given 405 * ioctl, for use by drm_ioctl(). 406 */ 407 #define DRM_IOCTL_DEF(ioctl, func, flags) \ 408 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 409 410 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 411 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 412 413 typedef struct drm_magic_entry { 414 drm_magic_t magic; 415 struct drm_file *priv; 416 struct drm_magic_entry *next; 417 } drm_magic_entry_t; 418 419 typedef struct drm_magic_head { 420 struct drm_magic_entry *head; 421 struct drm_magic_entry *tail; 422 } drm_magic_head_t; 423 424 typedef struct drm_buf { 425 int idx; /**< Index into master buflist */ 426 int total; /**< Buffer size */ 427 int order; /**< log-base-2(total) */ 428 int used; /**< Amount of buffer in use (for DMA) */ 429 unsigned long offset; /**< Byte offset (used internally) */ 430 void *address; /**< Address of buffer */ 431 unsigned long bus_address; /**< Bus address of buffer */ 432 struct drm_buf *next; /**< Kernel-only: used for free list */ 433 __volatile__ int waiting; /**< On kernel DMA queue */ 434 __volatile__ int pending; /**< On hardware DMA queue */ 435 struct drm_file *file_priv; /**< Private of holding file descr */ 436 int context; /**< Kernel queue for this buffer */ 437 int while_locked; /**< Dispatch this buffer while locked */ 438 enum { 439 DRM_LIST_NONE = 0, 440 DRM_LIST_FREE = 1, 441 DRM_LIST_WAIT = 2, 442 DRM_LIST_PEND = 3, 443 DRM_LIST_PRIO = 4, 444 DRM_LIST_RECLAIM = 5 445 } list; /**< Which list we're on */ 446 447 int dev_priv_size; /**< Size of buffer private storage */ 448 void *dev_private; /**< Per-buffer private storage */ 449 } drm_buf_t; 450 451 typedef struct drm_freelist { 452 int initialized; /* Freelist in use */ 453 atomic_t count; /* Number of free buffers */ 454 drm_buf_t *next; /* End pointer */ 455 456 int low_mark; /* Low water mark */ 457 int high_mark; /* High water mark */ 458 } drm_freelist_t; 459 460 typedef struct drm_dma_handle { 461 void *vaddr; 462 bus_addr_t busaddr; 463 bus_dma_tag_t tag; 464 bus_dmamap_t map; 465 } drm_dma_handle_t; 466 467 typedef struct drm_buf_entry { 468 int buf_size; 469 int buf_count; 470 drm_buf_t *buflist; 471 int seg_count; 472 drm_dma_handle_t **seglist; 473 int page_order; 474 475 drm_freelist_t freelist; 476 } drm_buf_entry_t; 477 478 /* Event queued up for userspace to read */ 479 struct drm_pending_event { 480 struct drm_event *event; 481 struct list_head link; 482 struct drm_file *file_priv; 483 pid_t pid; /* pid of requester, no guarantee it's valid by the time 484 we deliver the event, for tracing only */ 485 void (*destroy)(struct drm_pending_event *event); 486 }; 487 488 /* initial implementaton using a linked list - todo hashtab */ 489 struct drm_prime_file_private { 490 struct list_head head; 491 #ifdef DUMBBELL_WIP 492 struct mutex lock; 493 #endif /* DUMBBELL_WIP */ 494 }; 495 496 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 497 struct drm_file { 498 TAILQ_ENTRY(drm_file) link; 499 struct drm_device *dev; 500 int authenticated; 501 int master; 502 pid_t pid; 503 uid_t uid; 504 drm_magic_t magic; 505 unsigned long ioctl_count; 506 507 /** Mapping of mm object handles to object pointers. */ 508 struct idr object_idr; 509 /** Lock for synchronization of access to object_idr. */ 510 struct lock table_lock; 511 512 void *driver_priv; 513 514 int is_master; 515 struct drm_master *masterp; 516 517 struct list_head fbs; 518 519 struct list_head event_list; 520 int event_space; 521 522 struct drm_prime_file_private prime; 523 }; 524 525 typedef struct drm_lock_data { 526 struct drm_hw_lock *hw_lock; /* Hardware lock */ 527 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/ 528 int lock_queue; /* Queue of blocked processes */ 529 unsigned long lock_time; /* Time of last lock in jiffies */ 530 } drm_lock_data_t; 531 532 /* This structure, in the struct drm_device, is always initialized while the 533 * device 534 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 535 * when set marks that no further bufs may be allocated until device teardown 536 * occurs (when the last open of the device has closed). The high/low 537 * watermarks of bufs are only touched by the X Server, and thus not 538 * concurrently accessed, so no locking is needed. 539 */ 540 typedef struct drm_device_dma { 541 542 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 543 int buf_count; /**< total number of buffers */ 544 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 545 int seg_count; 546 int page_count; /**< number of pages */ 547 unsigned long *pagelist; /**< page list */ 548 unsigned long byte_count; 549 enum { 550 _DRM_DMA_USE_AGP = 0x01, 551 _DRM_DMA_USE_SG = 0x02, 552 _DRM_DMA_USE_FB = 0x04, 553 _DRM_DMA_USE_PCI_RO = 0x08 554 } flags; 555 556 } drm_device_dma_t; 557 558 typedef struct drm_agp_mem { 559 void *handle; 560 unsigned long bound; /* address */ 561 int pages; 562 struct drm_agp_mem *prev; 563 struct drm_agp_mem *next; 564 } drm_agp_mem_t; 565 566 typedef struct drm_agp_head { 567 device_t agpdev; 568 struct agp_info agp_info; 569 const char *chipset; 570 drm_agp_mem_t *memory; 571 unsigned long mode; 572 int enabled; 573 int acquired; 574 unsigned long base; 575 int agp_mtrr; 576 int cant_use_aperture; 577 unsigned long page_mask; 578 } drm_agp_head_t; 579 580 typedef struct drm_sg_mem { 581 vm_offset_t vaddr; 582 vm_paddr_t *busaddr; 583 vm_pindex_t pages; 584 } drm_sg_mem_t; 585 586 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 587 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 588 589 /** 590 * Kernel side of a mapping 591 */ 592 struct drm_local_map { 593 unsigned long offset; /* Physical address (0 for SAREA) */ 594 unsigned long size; /* Physical size (bytes) */ 595 enum drm_map_type type; /* Type of memory mapped */ 596 enum drm_map_flags flags; /* Flags */ 597 void *handle; /* User-space: "Handle" to pass to mmap */ 598 /* Kernel-space: kernel-virtual address */ 599 int mtrr; /* Boolean: MTRR used */ 600 /* Private data */ 601 int rid; /* PCI resource ID for bus_space */ 602 void *virtual; /* Kernel-space: kernel-virtual address */ 603 struct resource *bsr; 604 bus_space_tag_t bst; 605 bus_space_handle_t bsh; 606 drm_dma_handle_t *dmah; 607 TAILQ_ENTRY(drm_local_map) link; 608 }; 609 610 typedef struct drm_local_map drm_local_map_t; 611 612 /** 613 * Mappings list 614 */ 615 struct drm_map_list { 616 struct list_head head; /**< list head */ 617 struct drm_hash_item hash; 618 struct drm_local_map *map; /**< mapping */ 619 uint64_t user_token; 620 struct drm_master *master; 621 struct drm_mm_node *file_offset_node; /**< fake offset */ 622 }; 623 624 struct drm_vblank_info { 625 wait_queue_head_t queue; /* vblank wait queue */ 626 atomic_t count; /* number of VBLANK interrupts */ 627 /* (driver must alloc the right number of counters) */ 628 atomic_t refcount; /* number of users of vblank interrupts */ 629 u32 last; /* protected by dev->vbl_lock, used */ 630 /* for wraparound handling */ 631 int enabled; /* so we don't call enable more than */ 632 /* once per disable */ 633 int inmodeset; /* Display driver is setting mode */ 634 }; 635 636 /* location of GART table */ 637 #define DRM_ATI_GART_MAIN 1 638 #define DRM_ATI_GART_FB 2 639 640 #define DRM_ATI_GART_PCI 1 641 #define DRM_ATI_GART_PCIE 2 642 #define DRM_ATI_GART_IGP 3 643 644 struct drm_ati_pcigart_info { 645 int gart_table_location; 646 int gart_reg_if; 647 void *addr; 648 dma_addr_t bus_addr; 649 dma_addr_t table_mask; 650 dma_addr_t member_mask; 651 struct drm_dma_handle *table_handle; 652 drm_local_map_t mapping; 653 int table_size; 654 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 655 }; 656 657 typedef vm_paddr_t resource_size_t; 658 659 /** 660 * GEM specific mm private for tracking GEM objects 661 */ 662 struct drm_gem_mm { 663 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 664 struct unrhdr *idxunr; 665 }; 666 667 struct drm_gem_object { 668 /** Reference count of this object */ 669 struct kref refcount; 670 671 /** Handle count of this object. Each handle also holds a reference */ 672 atomic_t handle_count; /* number of handles on this object */ 673 674 /** Related drm device */ 675 struct drm_device *dev; 676 677 /** File representing the shmem storage: filp in Linux parlance */ 678 vm_object_t vm_obj; 679 680 bool on_map; 681 struct drm_hash_item map_list; 682 683 /** 684 * Size of the object, in bytes. Immutable over the object's 685 * lifetime. 686 */ 687 size_t size; 688 689 /** 690 * Global name for this object, starts at 1. 0 means unnamed. 691 * Access is covered by the object_name_lock in the related drm_device 692 */ 693 int name; 694 695 /** 696 * Memory domains. These monitor which caches contain read/write data 697 * related to the object. When transitioning from one set of domains 698 * to another, the driver is called to ensure that caches are suitably 699 * flushed and invalidated 700 */ 701 uint32_t read_domains; 702 uint32_t write_domain; 703 704 /** 705 * While validating an exec operation, the 706 * new read/write domain values are computed here. 707 * They will be transferred to the above values 708 * at the point that any cache flushing occurs 709 */ 710 uint32_t pending_read_domains; 711 uint32_t pending_write_domain; 712 713 void *driver_private; 714 715 #ifdef DUMBBELL_WIP 716 /* dma buf exported from this GEM object */ 717 struct dma_buf *export_dma_buf; 718 719 /* dma buf attachment backing this object */ 720 struct dma_buf_attachment *import_attach; 721 #endif /* DUMBBELL_WIP */ 722 }; 723 724 #include "drm_crtc.h" 725 726 /* per-master structure */ 727 struct drm_master { 728 729 struct kref refcount; /* refcount for this master */ 730 731 struct list_head head; /**< each minor contains a list of masters */ 732 struct drm_minor *minor; /**< link back to minor we are a master for */ 733 734 char *unique; /**< Unique identifier: e.g., busid */ 735 int unique_len; /**< Length of unique field */ 736 int unique_size; /**< amount allocated */ 737 738 int blocked; /**< Blocked due to VC switch? */ 739 740 /** \name Authentication */ 741 /*@{ */ 742 struct drm_open_hash magiclist; 743 struct list_head magicfree; 744 /*@} */ 745 746 struct drm_lock_data lock; /**< Information on hardware lock */ 747 748 void *driver_priv; /**< Private structure for driver to use */ 749 }; 750 751 /* Size of ringbuffer for vblank timestamps. Just double-buffer 752 * in initial implementation. 753 */ 754 #define DRM_VBLANKTIME_RBSIZE 2 755 756 /* Flags and return codes for get_vblank_timestamp() driver function. */ 757 #define DRM_CALLED_FROM_VBLIRQ 1 758 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 759 #define DRM_VBLANKTIME_INVBL (1 << 1) 760 761 /* get_scanout_position() return flags */ 762 #define DRM_SCANOUTPOS_VALID (1 << 0) 763 #define DRM_SCANOUTPOS_INVBL (1 << 1) 764 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 765 766 #ifndef DMA_BIT_MASK 767 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 768 #endif 769 770 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 771 772 struct drm_driver { 773 int (*load)(struct drm_device *, unsigned long flags); 774 int (*use_msi)(struct drm_device *, unsigned long flags); 775 int (*firstopen)(struct drm_device *); 776 int (*open)(struct drm_device *, struct drm_file *); 777 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 778 void (*postclose)(struct drm_device *, struct drm_file *); 779 void (*lastclose)(struct drm_device *); 780 int (*unload)(struct drm_device *); 781 void (*reclaim_buffers_locked)(struct drm_device *, 782 struct drm_file *file_priv); 783 int (*dma_ioctl)(struct drm_device *dev, void *data, 784 struct drm_file *file_priv); 785 void (*dma_ready)(struct drm_device *); 786 int (*dma_quiescent)(struct drm_device *); 787 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 788 enum drm_lock_flags flags); 789 int (*dma_flush_unblock)(struct drm_device *, int context, 790 enum drm_lock_flags flags); 791 int (*context_ctor)(struct drm_device *dev, int context); 792 int (*context_dtor)(struct drm_device *dev, int context); 793 int (*kernel_context_switch)(struct drm_device *dev, int old, 794 int new); 795 int (*kernel_context_switch_unlock)(struct drm_device *dev); 796 void (*irq_preinstall)(struct drm_device *dev); 797 int (*irq_postinstall)(struct drm_device *dev); 798 void (*irq_uninstall)(struct drm_device *dev); 799 void (*irq_handler)(DRM_IRQ_ARGS); 800 801 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 802 int (*enable_vblank)(struct drm_device *dev, int crtc); 803 void (*disable_vblank)(struct drm_device *dev, int crtc); 804 int (*get_scanout_position)(struct drm_device *dev, int crtc, 805 int *vpos, int *hpos); 806 807 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 808 int *max_error, struct timeval *vblank_time, 809 unsigned flags); 810 811 int (*gem_init_object)(struct drm_gem_object *obj); 812 void (*gem_free_object)(struct drm_gem_object *obj); 813 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 814 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 815 816 struct cdev_pager_ops *gem_pager_ops; 817 818 int (*dumb_create)(struct drm_file *file_priv, 819 struct drm_device *dev, struct drm_mode_create_dumb *args); 820 int (*dumb_map_offset)(struct drm_file *file_priv, 821 struct drm_device *dev, uint32_t handle, uint64_t *offset); 822 int (*dumb_destroy)(struct drm_file *file_priv, 823 struct drm_device *dev, uint32_t handle); 824 825 int (*sysctl_init)(struct drm_device *dev, 826 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 827 void (*sysctl_cleanup)(struct drm_device *dev); 828 829 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 830 831 /** 832 * Called by \c drm_device_is_agp. Typically used to determine if a 833 * card is really attached to AGP or not. 834 * 835 * \param dev DRM device handle 836 * 837 * \returns 838 * One of three values is returned depending on whether or not the 839 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 840 * (return of 1), or may or may not be AGP (return of 2). 841 */ 842 int (*device_is_agp) (struct drm_device * dev); 843 844 drm_ioctl_desc_t *ioctls; 845 #ifdef COMPAT_FREEBSD32 846 drm_ioctl_desc_t *compat_ioctls; 847 int *compat_ioctls_nr; 848 #endif 849 int max_ioctl; 850 851 int buf_priv_size; 852 853 int major; 854 int minor; 855 int patchlevel; 856 const char *name; /* Simple driver name */ 857 const char *desc; /* Longer driver name */ 858 const char *date; /* Date of last major changes. */ 859 860 u32 driver_features; 861 }; 862 863 /** 864 * DRM minor structure. This structure represents a drm minor number. 865 */ 866 struct drm_minor { 867 int index; /**< Minor device number */ 868 int type; /**< Control or render */ 869 device_t kdev; /**< OS device */ 870 struct drm_device *dev; 871 872 struct drm_master *master; /* currently active master for this node */ 873 struct list_head master_list; 874 struct drm_mode_group mode_group; 875 }; 876 877 /* mode specified on the command line */ 878 struct drm_cmdline_mode { 879 bool specified; 880 bool refresh_specified; 881 bool bpp_specified; 882 int xres, yres; 883 int bpp; 884 int refresh; 885 bool rb; 886 bool interlace; 887 bool cvt; 888 bool margins; 889 enum drm_connector_force force; 890 }; 891 892 893 struct drm_pending_vblank_event { 894 struct drm_pending_event base; 895 int pipe; 896 struct drm_event_vblank event; 897 }; 898 899 /* Length for the array of resource pointers for drm_get_resource_*. */ 900 #define DRM_MAX_PCI_RESOURCE 6 901 902 /** 903 * DRM device structure. This structure represent a complete card that 904 * may contain multiple heads. 905 */ 906 struct drm_device { 907 struct drm_driver *driver; 908 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 909 910 uint16_t pci_device; /* PCI device id */ 911 uint16_t pci_vendor; /* PCI vendor id */ 912 uint16_t pci_subdevice; /* PCI subsystem device id */ 913 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 914 915 char *unique; /* Unique identifier: e.g., busid */ 916 int unique_len; /* Length of unique field */ 917 device_t device; /* Device instance from newbus */ 918 struct cdev *devnode; /* Device number for mknod */ 919 int if_version; /* Highest interface version set */ 920 921 int flags; /* Flags to open(2) */ 922 923 /* Locks */ 924 struct spinlock dma_lock; /* protects dev->dma */ 925 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 926 struct lock dev_lock; /* protects everything else */ 927 struct lock dev_struct_lock; 928 929 /* Usage Counters */ 930 int open_count; /* Outstanding files open */ 931 int buf_use; /* Buffers in use -- cannot alloc */ 932 933 /* Performance counters */ 934 unsigned long counters; 935 enum drm_stat_type types[15]; 936 atomic_t counts[15]; 937 938 /* Authentication */ 939 drm_file_list_t files; 940 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 941 942 /** \name Memory management */ 943 /*@{ */ 944 struct list_head maplist; /**< Linked list of regions */ 945 struct unrhdr *map_unrhdr; 946 947 drm_local_map_t **context_sareas; 948 int max_context; 949 950 drm_lock_data_t lock; /* Information on hardware lock */ 951 952 /* DMA queues (contexts) */ 953 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 954 955 /* Context support */ 956 int irq; /* Interrupt used by board */ 957 int msi_enabled; /* MSI enabled */ 958 int irqrid; /* Interrupt used by board */ 959 struct resource *irqr; /* Resource for interrupt used by board */ 960 void *irqh; /* Handle from bus_setup_intr */ 961 962 /* Storage of resource pointers for drm_get_resource_* */ 963 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 964 int pcirid[DRM_MAX_PCI_RESOURCE]; 965 966 int pci_domain; 967 int pci_bus; 968 int pci_slot; 969 int pci_func; 970 971 /** \name Context support */ 972 /*@{ */ 973 int irq_enabled; /**< True if irq handler is enabled */ 974 __volatile__ long context_flag; /**< Context swapping flag */ 975 int last_context; /**< Last current context */ 976 /*@} */ 977 978 int num_crtcs; 979 980 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 981 982 /* Sysctl support */ 983 struct drm_sysctl_info *sysctl; 984 int sysctl_node_idx; 985 986 drm_agp_head_t *agp; 987 drm_sg_mem_t *sg; /* Scatter gather memory */ 988 unsigned long *ctx_bitmap; 989 void *dev_private; 990 unsigned int agp_buffer_token; 991 drm_local_map_t *agp_buffer_map; 992 993 struct drm_minor *control; /**< Control node for card */ 994 struct drm_minor *primary; /**< render type primary screen head */ 995 996 void *drm_ttm_bdev; 997 998 int vblank_disable_allowed; 999 1000 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 1001 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 1002 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 1003 struct lock vbl_lock; 1004 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 1005 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 1006 /* for wraparound handling */ 1007 int *vblank_enabled; /* so we don't call enable more than 1008 once per disable */ 1009 int *vblank_inmodeset; /* Display driver is setting mode */ 1010 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 1011 struct callout vblank_disable_callout; 1012 1013 u32 max_vblank_count; /**< size of vblank counter register */ 1014 1015 struct list_head vblank_event_list; 1016 struct lock event_lock; 1017 1018 struct drm_mode_config mode_config; /**< Current mode config */ 1019 1020 1021 /** \name GEM information */ 1022 /*@{ */ 1023 struct lock object_name_lock; 1024 struct idr object_name_idr; 1025 /*@} */ 1026 void *mm_private; 1027 1028 void *sysctl_private; 1029 char busid_str[128]; 1030 int modesetting; 1031 1032 int switch_power_state; 1033 }; 1034 1035 #define DRM_SWITCH_POWER_ON 0 1036 #define DRM_SWITCH_POWER_OFF 1 1037 #define DRM_SWITCH_POWER_CHANGING 2 1038 1039 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1040 int feature) 1041 { 1042 return ((dev->driver->driver_features & feature) ? 1 : 0); 1043 } 1044 1045 #if __OS_HAS_AGP 1046 static inline int drm_core_has_AGP(struct drm_device *dev) 1047 { 1048 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1049 } 1050 #else 1051 #define drm_core_has_AGP(dev) (0) 1052 #endif 1053 1054 enum dmi_field { 1055 DMI_NONE, 1056 DMI_BIOS_VENDOR, 1057 DMI_BIOS_VERSION, 1058 DMI_BIOS_DATE, 1059 DMI_SYS_VENDOR, 1060 DMI_PRODUCT_NAME, 1061 DMI_PRODUCT_VERSION, 1062 DMI_PRODUCT_SERIAL, 1063 DMI_PRODUCT_UUID, 1064 DMI_BOARD_VENDOR, 1065 DMI_BOARD_NAME, 1066 DMI_BOARD_VERSION, 1067 DMI_BOARD_SERIAL, 1068 DMI_BOARD_ASSET_TAG, 1069 DMI_CHASSIS_VENDOR, 1070 DMI_CHASSIS_TYPE, 1071 DMI_CHASSIS_VERSION, 1072 DMI_CHASSIS_SERIAL, 1073 DMI_CHASSIS_ASSET_TAG, 1074 DMI_STRING_MAX, 1075 }; 1076 1077 struct dmi_strmatch { 1078 unsigned char slot; 1079 char substr[79]; 1080 }; 1081 1082 struct dmi_system_id { 1083 int (*callback)(const struct dmi_system_id *); 1084 const char *ident; 1085 struct dmi_strmatch matches[4]; 1086 }; 1087 #define DMI_MATCH(a, b) {(a), (b)} 1088 bool dmi_check_system(const struct dmi_system_id *); 1089 1090 extern int drm_notyet_flag; 1091 extern int drm_debug; 1092 1093 extern unsigned int drm_vblank_offdelay; 1094 extern unsigned int drm_timestamp_precision; 1095 1096 /* Device setup support (drm_drv.c) */ 1097 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1098 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1099 int drm_create_cdevs(device_t kdev); 1100 int drm_detach(device_t kdev); 1101 d_ioctl_t drm_ioctl; 1102 d_open_t drm_open; 1103 d_close_t drm_close; 1104 d_read_t drm_read; 1105 d_kqfilter_t drm_kqfilter; 1106 d_mmap_t drm_mmap; 1107 d_mmap_single_t drm_mmap_single; 1108 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1109 1110 void drm_event_wakeup(struct drm_pending_event *e); 1111 1112 int drm_add_busid_modesetting(struct drm_device *dev, 1113 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1114 1115 /* File operations helpers (drm_fops.c) */ 1116 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1117 DRM_STRUCTPROC *p, 1118 struct drm_device *dev); 1119 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1120 DRM_STRUCTPROC *p); 1121 1122 #ifdef DUMBBELL_WIP 1123 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1124 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1125 int *prime_fd); 1126 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1127 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1128 1129 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1130 struct drm_file *file_priv); 1131 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1132 struct drm_file *file_priv); 1133 1134 #ifdef DUMBBELL_WIP 1135 /* 1136 * See drm_prime.c 1137 * -- dumbbell@ 1138 */ 1139 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1140 dma_addr_t *addrs, int max_pages); 1141 #endif /* DUMBBELL_WIP */ 1142 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1143 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1144 1145 1146 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1147 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1148 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1149 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1150 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1151 1152 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1153 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1154 struct drm_gem_object **obj); 1155 #endif /* DUMBBELL_WIP */ 1156 1157 /* Memory management support (drm_memory.c) */ 1158 void drm_mem_init(void); 1159 void drm_mem_uninit(void); 1160 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1161 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1162 void drm_ioremapfree(drm_local_map_t *map); 1163 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1164 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1165 1166 int drm_ctxbitmap_init(struct drm_device *dev); 1167 void drm_ctxbitmap_cleanup(struct drm_device *dev); 1168 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1169 int drm_ctxbitmap_next(struct drm_device *dev); 1170 1171 /* Locking IOCTL support (drm_lock.c) */ 1172 int drm_lock_take(struct drm_lock_data *lock_data, 1173 unsigned int context); 1174 int drm_lock_transfer(struct drm_lock_data *lock_data, 1175 unsigned int context); 1176 int drm_lock_free(struct drm_lock_data *lock_data, 1177 unsigned int context); 1178 1179 /* Buffer management support (drm_bufs.c) */ 1180 unsigned long drm_get_resource_start(struct drm_device *dev, 1181 unsigned int resource); 1182 unsigned long drm_get_resource_len(struct drm_device *dev, 1183 unsigned int resource); 1184 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1185 int drm_order(unsigned long size); 1186 int drm_addmap(struct drm_device *dev, unsigned long offset, 1187 unsigned long size, 1188 enum drm_map_type type, enum drm_map_flags flags, 1189 drm_local_map_t **map_ptr); 1190 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1191 int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request); 1192 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1193 1194 /* DMA support (drm_dma.c) */ 1195 int drm_dma_setup(struct drm_device *dev); 1196 void drm_dma_takedown(struct drm_device *dev); 1197 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1198 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1199 #define drm_core_reclaim_buffers drm_reclaim_buffers 1200 1201 /* IRQ support (drm_irq.c) */ 1202 int drm_irq_install(struct drm_device *dev); 1203 int drm_irq_uninstall(struct drm_device *dev); 1204 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 1205 void drm_driver_irq_preinstall(struct drm_device *dev); 1206 void drm_driver_irq_postinstall(struct drm_device *dev); 1207 void drm_driver_irq_uninstall(struct drm_device *dev); 1208 1209 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1210 void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1211 int drm_modeset_ctl(struct drm_device *dev, void *data, 1212 struct drm_file *file_priv); 1213 1214 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1215 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1216 struct drm_file *filp); 1217 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1218 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1219 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1220 struct timeval *vblanktime); 1221 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1222 void drm_handle_vblank_events(struct drm_device *dev, int crtc); 1223 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1224 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1225 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1226 extern void drm_vblank_cleanup(struct drm_device *dev); 1227 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1228 struct timeval *tvblank, unsigned flags); 1229 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1230 int crtc, int *max_error, 1231 struct timeval *vblank_time, 1232 unsigned flags, 1233 struct drm_crtc *refcrtc); 1234 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1235 1236 struct timeval ns_to_timeval(const int64_t nsec); 1237 int64_t timeval_to_ns(const struct timeval *tv); 1238 1239 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1240 int drm_device_is_agp(struct drm_device *dev); 1241 int drm_device_is_pcie(struct drm_device *dev); 1242 drm_agp_head_t *drm_agp_init(void); 1243 int drm_agp_acquire(struct drm_device *dev); 1244 int drm_agp_release(struct drm_device *dev); 1245 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 1246 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1247 void *drm_agp_allocate_memory(size_t pages, u32 type); 1248 int drm_agp_free_memory(void *handle); 1249 int drm_agp_bind_memory(void *handle, off_t start); 1250 int drm_agp_unbind_memory(void *handle); 1251 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1252 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1253 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1254 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1255 1256 /* Scatter Gather Support (drm_scatter.c) */ 1257 void drm_sg_cleanup(drm_sg_mem_t *entry); 1258 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1259 1260 /* sysctl support (drm_sysctl.h) */ 1261 extern int drm_sysctl_init(struct drm_device *dev); 1262 extern int drm_sysctl_cleanup(struct drm_device *dev); 1263 1264 /* ATI PCIGART support (ati_pcigart.c) */ 1265 int drm_ati_pcigart_init(struct drm_device *dev, 1266 struct drm_ati_pcigart_info *gart_info); 1267 int drm_ati_pcigart_cleanup(struct drm_device *dev, 1268 struct drm_ati_pcigart_info *gart_info); 1269 1270 /* Cache management (drm_memory.c) */ 1271 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1272 1273 /* Locking IOCTL support (drm_drv.c) */ 1274 int drm_lock(struct drm_device *dev, void *data, 1275 struct drm_file *file_priv); 1276 int drm_unlock(struct drm_device *dev, void *data, 1277 struct drm_file *file_priv); 1278 int drm_version(struct drm_device *dev, void *data, 1279 struct drm_file *file_priv); 1280 int drm_setversion(struct drm_device *dev, void *data, 1281 struct drm_file *file_priv); 1282 1283 /* Misc. IOCTL support (drm_ioctl.c) */ 1284 int drm_irq_by_busid(struct drm_device *dev, void *data, 1285 struct drm_file *file_priv); 1286 int drm_getunique(struct drm_device *dev, void *data, 1287 struct drm_file *file_priv); 1288 int drm_setunique(struct drm_device *dev, void *data, 1289 struct drm_file *file_priv); 1290 int drm_getmap(struct drm_device *dev, void *data, 1291 struct drm_file *file_priv); 1292 int drm_getclient(struct drm_device *dev, void *data, 1293 struct drm_file *file_priv); 1294 int drm_getstats(struct drm_device *dev, void *data, 1295 struct drm_file *file_priv); 1296 int drm_getcap(struct drm_device *dev, void *data, 1297 struct drm_file *file_priv); 1298 int drm_noop(struct drm_device *dev, void *data, 1299 struct drm_file *file_priv); 1300 1301 /* Context IOCTL support (drm_context.c) */ 1302 int drm_resctx(struct drm_device *dev, void *data, 1303 struct drm_file *file_priv); 1304 int drm_addctx(struct drm_device *dev, void *data, 1305 struct drm_file *file_priv); 1306 int drm_modctx(struct drm_device *dev, void *data, 1307 struct drm_file *file_priv); 1308 int drm_getctx(struct drm_device *dev, void *data, 1309 struct drm_file *file_priv); 1310 int drm_switchctx(struct drm_device *dev, void *data, 1311 struct drm_file *file_priv); 1312 int drm_newctx(struct drm_device *dev, void *data, 1313 struct drm_file *file_priv); 1314 int drm_rmctx(struct drm_device *dev, void *data, 1315 struct drm_file *file_priv); 1316 int drm_setsareactx(struct drm_device *dev, void *data, 1317 struct drm_file *file_priv); 1318 int drm_getsareactx(struct drm_device *dev, void *data, 1319 struct drm_file *file_priv); 1320 1321 /* Authentication IOCTL support (drm_auth.c) */ 1322 int drm_getmagic(struct drm_device *dev, void *data, 1323 struct drm_file *file_priv); 1324 int drm_authmagic(struct drm_device *dev, void *data, 1325 struct drm_file *file_priv); 1326 1327 /* Buffer management support (drm_bufs.c) */ 1328 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1329 struct drm_file *file_priv); 1330 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1331 struct drm_file *file_priv); 1332 int drm_addbufs(struct drm_device *dev, void *data, 1333 struct drm_file *file_priv); 1334 int drm_infobufs(struct drm_device *dev, void *data, 1335 struct drm_file *file_priv); 1336 int drm_markbufs(struct drm_device *dev, void *data, 1337 struct drm_file *file_priv); 1338 int drm_freebufs(struct drm_device *dev, void *data, 1339 struct drm_file *file_priv); 1340 int drm_mapbufs(struct drm_device *dev, void *data, 1341 struct drm_file *file_priv); 1342 1343 /* DMA support (drm_dma.c) */ 1344 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1345 1346 /* IRQ support (drm_irq.c) */ 1347 int drm_control(struct drm_device *dev, void *data, 1348 struct drm_file *file_priv); 1349 1350 /* AGP/GART support (drm_agpsupport.c) */ 1351 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1352 struct drm_file *file_priv); 1353 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1354 struct drm_file *file_priv); 1355 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1356 struct drm_file *file_priv); 1357 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1358 struct drm_file *file_priv); 1359 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1360 struct drm_file *file_priv); 1361 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1362 struct drm_file *file_priv); 1363 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1364 struct drm_file *file_priv); 1365 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1366 struct drm_file *file_priv); 1367 1368 /* Stub support (drm_stub.h) */ 1369 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1370 struct drm_file *file_priv); 1371 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1372 struct drm_file *file_priv); 1373 1374 /* Scatter Gather Support (drm_scatter.c) */ 1375 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1376 struct drm_file *file_priv); 1377 int drm_sg_free(struct drm_device *dev, void *data, 1378 struct drm_file *file_priv); 1379 1380 /* consistent PCI memory functions (drm_pci.c) */ 1381 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1382 size_t align, dma_addr_t maxaddr); 1383 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1384 1385 /* Graphics Execution Manager library functions (drm_gem.c) */ 1386 int drm_gem_init(struct drm_device *dev); 1387 void drm_gem_destroy(struct drm_device *dev); 1388 void drm_gem_object_release(struct drm_gem_object *obj); 1389 void drm_gem_object_free(struct kref *kref); 1390 1391 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1392 struct drm_file *file_priv); 1393 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1394 struct drm_file *file_priv); 1395 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1396 struct drm_file *file_priv); 1397 void drm_gem_object_handle_free(struct drm_gem_object *obj); 1398 1399 #include <drm/drm_global.h> 1400 1401 static inline void 1402 drm_gem_object_reference(struct drm_gem_object *obj) 1403 { 1404 kref_get(&obj->refcount); 1405 } 1406 1407 static inline void 1408 drm_gem_object_unreference(struct drm_gem_object *obj) 1409 { 1410 if (obj != NULL) 1411 kref_put(&obj->refcount, drm_gem_object_free); 1412 } 1413 1414 static inline void 1415 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1416 { 1417 if (obj != NULL) { 1418 struct drm_device *dev = obj->dev; 1419 DRM_LOCK(dev); 1420 kref_put(&obj->refcount, drm_gem_object_free); 1421 DRM_UNLOCK(dev); 1422 } 1423 } 1424 1425 int drm_gem_handle_create(struct drm_file *file_priv, 1426 struct drm_gem_object *obj, 1427 u32 *handlep); 1428 int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1429 1430 static inline void 1431 drm_gem_object_handle_reference(struct drm_gem_object *obj) 1432 { 1433 drm_gem_object_reference(obj); 1434 atomic_inc(&obj->handle_count); 1435 } 1436 1437 static inline void 1438 drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1439 { 1440 if (obj == NULL) 1441 return; 1442 1443 if (atomic_read(&obj->handle_count) == 0) 1444 return; 1445 /* 1446 * Must bump handle count first as this may be the last 1447 * ref, in which case the object would disappear before we 1448 * checked for a name 1449 */ 1450 if (atomic_dec_and_test(&obj->handle_count)) 1451 drm_gem_object_handle_free(obj); 1452 drm_gem_object_unreference(obj); 1453 } 1454 1455 static inline void 1456 drm_gem_object_handle_unreference_unlocked(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 /* 1465 * Must bump handle count first as this may be the last 1466 * ref, in which case the object would disappear before we 1467 * checked for a name 1468 */ 1469 1470 if (atomic_dec_and_test(&obj->handle_count)) 1471 drm_gem_object_handle_free(obj); 1472 drm_gem_object_unreference_unlocked(obj); 1473 } 1474 1475 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, 1476 size_t size); 1477 int drm_gem_private_object_init(struct drm_device *dev, 1478 struct drm_gem_object *obj, size_t size); 1479 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1480 size_t size); 1481 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1482 struct drm_file *file_priv, uint32_t handle); 1483 1484 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1485 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1486 1487 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1488 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1489 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1490 vm_size_t size, struct vm_object **obj_res, int nprot); 1491 void drm_gem_pager_dtr(void *obj); 1492 1493 struct ttm_bo_device; 1494 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1495 vm_size_t size, struct vm_object **obj_res, int nprot); 1496 struct ttm_buffer_object; 1497 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1498 1499 void drm_device_lock_mtx(struct drm_device *dev); 1500 void drm_device_unlock_mtx(struct drm_device *dev); 1501 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1502 const char *msg, int timeout); 1503 void drm_device_assert_mtx_locked(struct drm_device *dev); 1504 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1505 1506 void drm_device_lock_struct(struct drm_device *dev); 1507 void drm_device_unlock_struct(struct drm_device *dev); 1508 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1509 const char *msg, int timeout); 1510 void drm_device_assert_struct_locked(struct drm_device *dev); 1511 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1512 1513 void drm_compat_locking_init(struct drm_device *dev); 1514 void drm_sleep_locking_init(struct drm_device *dev); 1515 1516 /* drm_modes.c */ 1517 bool drm_mode_parse_command_line_for_connector(const char *mode_option, 1518 struct drm_connector *connector, struct drm_cmdline_mode *mode); 1519 struct drm_display_mode *drm_mode_create_from_cmdline_mode( 1520 struct drm_device *dev, struct drm_cmdline_mode *cmd); 1521 1522 /* Inline replacements for drm_alloc and friends */ 1523 static __inline__ void * 1524 drm_alloc(size_t size, struct malloc_type *area) 1525 { 1526 return kmalloc(size, area, M_NOWAIT); 1527 } 1528 1529 static __inline__ void * 1530 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1531 { 1532 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO); 1533 } 1534 1535 static __inline__ void * 1536 drm_realloc(void *oldpt, size_t oldsize, size_t size, 1537 struct malloc_type *area) 1538 { 1539 void *res; 1540 res = krealloc(oldpt, size, area, M_NOWAIT); 1541 if (res == NULL && oldpt != NULL) 1542 kfree(oldpt,area); 1543 return res; 1544 } 1545 1546 static __inline__ void 1547 drm_free(void *pt, struct malloc_type *area) 1548 { 1549 if (pt != NULL) 1550 kfree(pt, area); 1551 } 1552 1553 /* Inline replacements for DRM_IOREMAP macros */ 1554 static __inline__ void 1555 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1556 { 1557 map->virtual = drm_ioremap_wc(dev, map); 1558 } 1559 static __inline__ void 1560 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1561 { 1562 map->virtual = drm_ioremap(dev, map); 1563 } 1564 static __inline__ void 1565 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1566 { 1567 if ( map->virtual && map->size ) 1568 drm_ioremapfree(map); 1569 } 1570 1571 static __inline__ struct drm_local_map * 1572 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1573 { 1574 struct drm_map_list *_entry; 1575 1576 list_for_each_entry(_entry, &dev->maplist, head) { 1577 if (offset == (unsigned long)_entry->map->handle) 1578 return _entry->map; 1579 } 1580 return NULL; 1581 } 1582 1583 static __inline__ void drm_core_dropmap(struct drm_map *map) 1584 { 1585 } 1586 1587 /* FreeBSD compatibility macros */ 1588 #define PROC_LOCK(p) 1589 #define PROC_UNLOCK(p) 1590 1591 #define VM_OBJECT_RLOCK(object) VM_OBJECT_LOCK(object) 1592 #define VM_OBJECT_RUNLOCK(object) VM_OBJECT_UNLOCK(object) 1593 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1594 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1595 1596 #define CTR2(one,two,three,four) 1597 1598 #define DRM_PCIE_SPEED_25 1 1599 #define DRM_PCIE_SPEED_50 2 1600 #define DRM_PCIE_SPEED_80 4 1601 1602 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1603 1604 #define drm_can_sleep() (DRM_HZ & 1) 1605 1606 #endif /* __KERNEL__ */ 1607 #endif /* _DRM_P_H_ */ 1608