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 #ifdef DRM_DEBUG 111 #undef DRM_DEBUG 112 #define DRM_DEBUG_DEFAULT_ON 1 113 #endif /* DRM_DEBUG */ 114 115 #define DRM_DEBUGBITS_DEBUG 0x1 116 #define DRM_DEBUGBITS_KMS 0x2 117 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 118 119 #undef DRM_LINUX 120 #define DRM_LINUX 0 121 122 /***********************************************************************/ 123 /** \name DRM template customization defaults */ 124 /*@{*/ 125 126 /* driver capabilities and requirements mask */ 127 #define DRIVER_USE_AGP 0x1 128 #define DRIVER_REQUIRE_AGP 0x2 129 #define DRIVER_USE_MTRR 0x4 130 #define DRIVER_PCI_DMA 0x8 131 #define DRIVER_SG 0x10 132 #define DRIVER_HAVE_DMA 0x20 133 #define DRIVER_HAVE_IRQ 0x40 134 #define DRIVER_IRQ_SHARED 0x80 135 #define DRIVER_IRQ_VBL 0x100 136 #define DRIVER_DMA_QUEUE 0x200 137 #define DRIVER_FB_DMA 0x400 138 #define DRIVER_IRQ_VBL2 0x800 139 #define DRIVER_GEM 0x1000 140 #define DRIVER_MODESET 0x2000 141 #define DRIVER_PRIME 0x4000 142 #define DRIVER_LOCKLESS_IRQ 0x8000 143 144 145 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 146 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 147 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 148 149 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 150 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 151 #define DRM_GEM_MAX_IDX 0x3fffff 152 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 153 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 154 #define DRM_GEM_MAPPING_MAPOFF(o) \ 155 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 156 157 MALLOC_DECLARE(DRM_MEM_DMA); 158 MALLOC_DECLARE(DRM_MEM_SAREA); 159 MALLOC_DECLARE(DRM_MEM_DRIVER); 160 MALLOC_DECLARE(DRM_MEM_MAGIC); 161 MALLOC_DECLARE(DRM_MEM_MAPS); 162 MALLOC_DECLARE(DRM_MEM_BUFS); 163 MALLOC_DECLARE(DRM_MEM_SEGS); 164 MALLOC_DECLARE(DRM_MEM_PAGES); 165 MALLOC_DECLARE(DRM_MEM_FILES); 166 MALLOC_DECLARE(DRM_MEM_BUFLISTS); 167 MALLOC_DECLARE(DRM_MEM_AGPLISTS); 168 MALLOC_DECLARE(DRM_MEM_CTXBITMAP); 169 MALLOC_DECLARE(DRM_MEM_SGLISTS); 170 MALLOC_DECLARE(DRM_MEM_MM); 171 MALLOC_DECLARE(DRM_MEM_HASHTAB); 172 MALLOC_DECLARE(DRM_MEM_KMS); 173 174 SYSCTL_DECL(_hw_drm); 175 176 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 177 178 /***********************************************************************/ 179 /** \name Internal types and structures */ 180 /*@{*/ 181 182 #define DRM_ARRAY_SIZE(x) NELEM(x) 183 #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 184 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 185 186 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 187 188 #define __OS_HAS_AGP 1 189 190 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 191 #define DRM_DEV_UID 0 192 #define DRM_DEV_GID 0 193 194 #define wait_queue_head_t atomic_t 195 #define DRM_WAKEUP(w) wakeup((void *)w) 196 #define DRM_WAKEUP_INT(w) wakeup(w) 197 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 198 199 #define DRM_CURPROC curthread 200 #define DRM_STRUCTPROC struct thread 201 #define DRM_CURRENTPID curthread->td_proc->p_pid 202 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE) 203 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE) 204 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 205 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout))) 206 #if defined(INVARIANTS) 207 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0); 208 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0); 209 #else 210 #define DRM_LOCK_ASSERT(d) 211 #define DRM_UNLOCK_ASSERT(d) 212 #endif 213 214 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 215 216 #define DRM_IRQ_ARGS void *arg 217 typedef void irqreturn_t; 218 #define IRQ_HANDLED /* nothing */ 219 #define IRQ_NONE /* nothing */ 220 221 enum { 222 DRM_IS_NOT_AGP, 223 DRM_IS_AGP, 224 DRM_MIGHT_BE_AGP 225 }; 226 #define DRM_AGP_MEM struct agp_memory_info 227 228 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 229 230 #define PAGE_ALIGN(addr) round_page(addr) 231 /* DRM_SUSER returns true if the user is superuser */ 232 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 233 #define DRM_AGP_FIND_DEVICE() agp_find_device() 234 #define DRM_MTRR_WC MDF_WRITECOMBINE 235 #define jiffies ticks 236 #define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz) 237 #define msecs_to_jiffies(x) (((int64_t)(x)) * hz / 1000) 238 #define time_after(a,b) ((long)(b) - (long)(a) < 0) 239 #define time_after_eq(a,b) ((long)(b) - (long)(a) <= 0) 240 241 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 242 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 243 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 244 */ 245 #define DRM_READMEMORYBARRIER() cpu_lfence() 246 #define DRM_WRITEMEMORYBARRIER() cpu_sfence() 247 #define DRM_MEMORYBARRIER() cpu_mfence() 248 249 #define DRM_READ8(map, offset) \ 250 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 251 (vm_offset_t)(offset)) 252 #define DRM_READ16(map, offset) \ 253 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 254 (vm_offset_t)(offset))) 255 #define DRM_READ32(map, offset) \ 256 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 257 (vm_offset_t)(offset))) 258 #define DRM_READ64(map, offset) \ 259 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 260 (vm_offset_t)(offset))) 261 #define DRM_WRITE8(map, offset, val) \ 262 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 263 (vm_offset_t)(offset)) = val 264 #define DRM_WRITE16(map, offset, val) \ 265 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 266 (vm_offset_t)(offset)) = htole16(val) 267 #define DRM_WRITE32(map, offset, val) \ 268 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 269 (vm_offset_t)(offset)) = htole32(val) 270 #define DRM_WRITE64(map, offset, val) \ 271 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 272 (vm_offset_t)(offset)) = htole64(val) 273 274 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 275 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 276 277 #define DRM_COPY_TO_USER(user, kern, size) \ 278 copyout(kern, user, size) 279 #define DRM_COPY_FROM_USER(kern, user, size) \ 280 copyin(user, kern, size) 281 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 282 copyin(arg2, arg1, arg3) 283 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 284 copyout(arg2, arg1, arg3) 285 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 286 ((val) = fuword32(uaddr), 0) 287 288 #define drm_can_sleep() (DRM_HZ & 1) 289 290 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 291 (_map) = (_dev)->context_sareas[_ctx]; \ 292 } while(0) 293 294 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 295 do { \ 296 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 297 dev->lock.file_priv != file_priv) { \ 298 DRM_ERROR("%s called without lock held\n", \ 299 __FUNCTION__); \ 300 return EINVAL; \ 301 } \ 302 } while (0) 303 304 /* Returns -errno to shared code */ 305 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 306 for ( ret = 0 ; !ret && !(condition) ; ) { \ 307 DRM_UNLOCK(dev); \ 308 lwkt_serialize_enter(&dev->irq_lock); \ 309 if (!(condition)) { \ 310 tsleep_interlock(&(queue), PCATCH); \ 311 lwkt_serialize_exit(&dev->irq_lock); \ 312 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 313 "drmwtq", (timeout)); \ 314 } else { \ 315 lwkt_serialize_exit(&dev->irq_lock); \ 316 } \ 317 DRM_LOCK(dev); \ 318 } 319 320 __inline static void 321 vm_page_unhold_pages(vm_page_t *ma, int count) 322 { 323 int i; 324 325 for (i = 0; i < count; i++) 326 vm_page_unhold(ma[i]); 327 } 328 329 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 330 vm_memattr_t memattr); 331 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 332 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 333 334 #define DRM_ERROR(fmt, ...) \ 335 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 336 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 337 338 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 339 340 #define DRM_DEBUG(fmt, ...) do { \ 341 if ((drm_debug_flag & DRM_DEBUGBITS_DEBUG) != 0) \ 342 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 343 __func__ , ##__VA_ARGS__); \ 344 } while (0) 345 346 #define DRM_DEBUG_KMS(fmt, ...) do { \ 347 if ((drm_debug_flag & DRM_DEBUGBITS_KMS) != 0) \ 348 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 349 __func__ , ##__VA_ARGS__); \ 350 } while (0) 351 352 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 353 if ((drm_debug_flag & DRM_DEBUGBITS_KMS) != 0) \ 354 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 355 __func__ , ##__VA_ARGS__); \ 356 } while (0) 357 358 #define dev_err(dev, fmt, ...) \ 359 device_printf((dev), "error: " fmt, ## __VA_ARGS__) 360 #define dev_warn(dev, fmt, ...) \ 361 device_printf((dev), "warning: " fmt, ## __VA_ARGS__) 362 #define dev_info(dev, fmt, ...) \ 363 device_printf((dev), "info: " fmt, ## __VA_ARGS__) 364 #define dev_dbg(dev, fmt, ...) do { \ 365 if ((drm_debug_flag& DRM_DEBUGBITS_KMS) != 0) { \ 366 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 367 } \ 368 } while (0) 369 370 typedef struct drm_pci_id_list 371 { 372 int vendor; 373 int device; 374 long driver_private; 375 char *name; 376 } drm_pci_id_list_t; 377 378 struct drm_msi_blacklist_entry 379 { 380 int vendor; 381 int device; 382 }; 383 384 #define DRM_AUTH 0x1 385 #define DRM_MASTER 0x2 386 #define DRM_ROOT_ONLY 0x4 387 #define DRM_CONTROL_ALLOW 0x8 388 #define DRM_UNLOCKED 0x10 389 390 typedef struct drm_ioctl_desc { 391 unsigned long cmd; 392 int (*func)(struct drm_device *dev, void *data, 393 struct drm_file *file_priv); 394 int flags; 395 unsigned int cmd_drv; 396 } drm_ioctl_desc_t; 397 398 /** 399 * Creates a driver or general drm_ioctl_desc array entry for the given 400 * ioctl, for use by drm_ioctl(). 401 */ 402 #define DRM_IOCTL_DEF(ioctl, func, flags) \ 403 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 404 405 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 406 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 407 408 typedef struct drm_magic_entry { 409 drm_magic_t magic; 410 struct drm_file *priv; 411 struct drm_magic_entry *next; 412 } drm_magic_entry_t; 413 414 typedef struct drm_magic_head { 415 struct drm_magic_entry *head; 416 struct drm_magic_entry *tail; 417 } drm_magic_head_t; 418 419 typedef struct drm_buf { 420 int idx; /**< Index into master buflist */ 421 int total; /**< Buffer size */ 422 int order; /**< log-base-2(total) */ 423 int used; /**< Amount of buffer in use (for DMA) */ 424 unsigned long offset; /**< Byte offset (used internally) */ 425 void *address; /**< Address of buffer */ 426 unsigned long bus_address; /**< Bus address of buffer */ 427 struct drm_buf *next; /**< Kernel-only: used for free list */ 428 __volatile__ int waiting; /**< On kernel DMA queue */ 429 __volatile__ int pending; /**< On hardware DMA queue */ 430 struct drm_file *file_priv; /**< Private of holding file descr */ 431 int context; /**< Kernel queue for this buffer */ 432 int while_locked; /**< Dispatch this buffer while locked */ 433 enum { 434 DRM_LIST_NONE = 0, 435 DRM_LIST_FREE = 1, 436 DRM_LIST_WAIT = 2, 437 DRM_LIST_PEND = 3, 438 DRM_LIST_PRIO = 4, 439 DRM_LIST_RECLAIM = 5 440 } list; /**< Which list we're on */ 441 442 int dev_priv_size; /**< Size of buffer private storage */ 443 void *dev_private; /**< Per-buffer private storage */ 444 } drm_buf_t; 445 446 typedef struct drm_freelist { 447 int initialized; /* Freelist in use */ 448 atomic_t count; /* Number of free buffers */ 449 drm_buf_t *next; /* End pointer */ 450 451 int low_mark; /* Low water mark */ 452 int high_mark; /* High water mark */ 453 } drm_freelist_t; 454 455 typedef struct drm_dma_handle { 456 void *vaddr; 457 bus_addr_t busaddr; 458 bus_dma_tag_t tag; 459 bus_dmamap_t map; 460 } drm_dma_handle_t; 461 462 typedef struct drm_buf_entry { 463 int buf_size; 464 int buf_count; 465 drm_buf_t *buflist; 466 int seg_count; 467 drm_dma_handle_t **seglist; 468 int page_order; 469 470 drm_freelist_t freelist; 471 } drm_buf_entry_t; 472 473 /* Event queued up for userspace to read */ 474 struct drm_pending_event { 475 struct drm_event *event; 476 struct list_head link; 477 struct drm_file *file_priv; 478 pid_t pid; /* pid of requester, no guarantee it's valid by the time 479 we deliver the event, for tracing only */ 480 void (*destroy)(struct drm_pending_event *event); 481 }; 482 483 /* initial implementaton using a linked list - todo hashtab */ 484 struct drm_prime_file_private { 485 struct list_head head; 486 #ifdef DUMBBELL_WIP 487 struct mutex lock; 488 #endif /* DUMBBELL_WIP */ 489 }; 490 491 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 492 struct drm_file { 493 TAILQ_ENTRY(drm_file) link; 494 struct drm_device *dev; 495 int authenticated; 496 int master; 497 pid_t pid; 498 uid_t uid; 499 drm_magic_t magic; 500 unsigned long ioctl_count; 501 502 /** Mapping of mm object handles to object pointers. */ 503 struct idr object_idr; 504 /** Lock for synchronization of access to object_idr. */ 505 struct spinlock table_lock; 506 507 void *driver_priv; 508 509 int is_master; 510 struct drm_master *masterp; 511 512 struct list_head fbs; 513 514 struct list_head event_list; 515 int event_space; 516 517 struct drm_prime_file_private prime; 518 }; 519 520 typedef struct drm_lock_data { 521 struct drm_hw_lock *hw_lock; /* Hardware lock */ 522 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/ 523 int lock_queue; /* Queue of blocked processes */ 524 unsigned long lock_time; /* Time of last lock in jiffies */ 525 } drm_lock_data_t; 526 527 /* This structure, in the struct drm_device, is always initialized while the 528 * device 529 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 530 * when set marks that no further bufs may be allocated until device teardown 531 * occurs (when the last open of the device has closed). The high/low 532 * watermarks of bufs are only touched by the X Server, and thus not 533 * concurrently accessed, so no locking is needed. 534 */ 535 typedef struct drm_device_dma { 536 537 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 538 int buf_count; /**< total number of buffers */ 539 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 540 int seg_count; 541 int page_count; /**< number of pages */ 542 unsigned long *pagelist; /**< page list */ 543 unsigned long byte_count; 544 enum { 545 _DRM_DMA_USE_AGP = 0x01, 546 _DRM_DMA_USE_SG = 0x02, 547 _DRM_DMA_USE_FB = 0x04, 548 _DRM_DMA_USE_PCI_RO = 0x08 549 } flags; 550 551 } drm_device_dma_t; 552 553 typedef struct drm_agp_mem { 554 void *handle; 555 unsigned long bound; /* address */ 556 int pages; 557 struct drm_agp_mem *prev; 558 struct drm_agp_mem *next; 559 } drm_agp_mem_t; 560 561 typedef struct drm_agp_head { 562 device_t agpdev; 563 struct agp_info agp_info; 564 const char *chipset; 565 drm_agp_mem_t *memory; 566 unsigned long mode; 567 int enabled; 568 int acquired; 569 unsigned long base; 570 int agp_mtrr; 571 int cant_use_aperture; 572 unsigned long page_mask; 573 } drm_agp_head_t; 574 575 typedef struct drm_sg_mem { 576 vm_offset_t vaddr; 577 vm_paddr_t *busaddr; 578 vm_pindex_t pages; 579 } drm_sg_mem_t; 580 581 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 582 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 583 584 /** 585 * Kernel side of a mapping 586 */ 587 struct drm_local_map { 588 unsigned long offset; /* Physical address (0 for SAREA) */ 589 unsigned long size; /* Physical size (bytes) */ 590 enum drm_map_type type; /* Type of memory mapped */ 591 enum drm_map_flags flags; /* Flags */ 592 void *handle; /* User-space: "Handle" to pass to mmap */ 593 /* Kernel-space: kernel-virtual address */ 594 int mtrr; /* Boolean: MTRR used */ 595 /* Private data */ 596 int rid; /* PCI resource ID for bus_space */ 597 void *virtual; /* Kernel-space: kernel-virtual address */ 598 struct resource *bsr; 599 bus_space_tag_t bst; 600 bus_space_handle_t bsh; 601 drm_dma_handle_t *dmah; 602 TAILQ_ENTRY(drm_local_map) link; 603 }; 604 605 typedef struct drm_local_map drm_local_map_t; 606 607 /** 608 * Mappings list 609 */ 610 struct drm_map_list { 611 struct list_head head; /**< list head */ 612 struct drm_hash_item hash; 613 struct drm_local_map *map; /**< mapping */ 614 uint64_t user_token; 615 struct drm_master *master; 616 struct drm_mm_node *file_offset_node; /**< fake offset */ 617 }; 618 619 struct drm_vblank_info { 620 wait_queue_head_t queue; /* vblank wait queue */ 621 atomic_t count; /* number of VBLANK interrupts */ 622 /* (driver must alloc the right number of counters) */ 623 atomic_t refcount; /* number of users of vblank interrupts */ 624 u32 last; /* protected by dev->vbl_lock, used */ 625 /* for wraparound handling */ 626 int enabled; /* so we don't call enable more than */ 627 /* once per disable */ 628 int inmodeset; /* Display driver is setting mode */ 629 }; 630 631 /* location of GART table */ 632 #define DRM_ATI_GART_MAIN 1 633 #define DRM_ATI_GART_FB 2 634 635 #define DRM_ATI_GART_PCI 1 636 #define DRM_ATI_GART_PCIE 2 637 #define DRM_ATI_GART_IGP 3 638 639 struct drm_ati_pcigart_info { 640 int gart_table_location; 641 int gart_reg_if; 642 void *addr; 643 dma_addr_t bus_addr; 644 dma_addr_t table_mask; 645 dma_addr_t member_mask; 646 struct drm_dma_handle *table_handle; 647 drm_local_map_t mapping; 648 int table_size; 649 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 650 }; 651 652 typedef vm_paddr_t resource_size_t; 653 654 /** 655 * GEM specific mm private for tracking GEM objects 656 */ 657 struct drm_gem_mm { 658 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 659 struct unrhdr *idxunr; 660 }; 661 662 struct drm_gem_object { 663 /** Reference count of this object */ 664 struct kref refcount; 665 666 /** Handle count of this object. Each handle also holds a reference */ 667 atomic_t handle_count; /* number of handles on this object */ 668 669 /** Related drm device */ 670 struct drm_device *dev; 671 672 /** File representing the shmem storage: filp in Linux parlance */ 673 vm_object_t vm_obj; 674 675 bool on_map; 676 struct drm_hash_item map_list; 677 678 /** 679 * Size of the object, in bytes. Immutable over the object's 680 * lifetime. 681 */ 682 size_t size; 683 684 /** 685 * Global name for this object, starts at 1. 0 means unnamed. 686 * Access is covered by the object_name_lock in the related drm_device 687 */ 688 int name; 689 690 /** 691 * Memory domains. These monitor which caches contain read/write data 692 * related to the object. When transitioning from one set of domains 693 * to another, the driver is called to ensure that caches are suitably 694 * flushed and invalidated 695 */ 696 uint32_t read_domains; 697 uint32_t write_domain; 698 699 /** 700 * While validating an exec operation, the 701 * new read/write domain values are computed here. 702 * They will be transferred to the above values 703 * at the point that any cache flushing occurs 704 */ 705 uint32_t pending_read_domains; 706 uint32_t pending_write_domain; 707 708 void *driver_private; 709 710 #ifdef DUMBBELL_WIP 711 /* dma buf exported from this GEM object */ 712 struct dma_buf *export_dma_buf; 713 714 /* dma buf attachment backing this object */ 715 struct dma_buf_attachment *import_attach; 716 #endif /* DUMBBELL_WIP */ 717 }; 718 719 #include "drm_crtc.h" 720 721 /* per-master structure */ 722 struct drm_master { 723 724 struct kref refcount; /* refcount for this master */ 725 726 struct list_head head; /**< each minor contains a list of masters */ 727 struct drm_minor *minor; /**< link back to minor we are a master for */ 728 729 char *unique; /**< Unique identifier: e.g., busid */ 730 int unique_len; /**< Length of unique field */ 731 int unique_size; /**< amount allocated */ 732 733 int blocked; /**< Blocked due to VC switch? */ 734 735 /** \name Authentication */ 736 /*@{ */ 737 struct drm_open_hash magiclist; 738 struct list_head magicfree; 739 /*@} */ 740 741 struct drm_lock_data lock; /**< Information on hardware lock */ 742 743 void *driver_priv; /**< Private structure for driver to use */ 744 }; 745 746 /* Size of ringbuffer for vblank timestamps. Just double-buffer 747 * in initial implementation. 748 */ 749 #define DRM_VBLANKTIME_RBSIZE 2 750 751 /* Flags and return codes for get_vblank_timestamp() driver function. */ 752 #define DRM_CALLED_FROM_VBLIRQ 1 753 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 754 #define DRM_VBLANKTIME_INVBL (1 << 1) 755 756 /* get_scanout_position() return flags */ 757 #define DRM_SCANOUTPOS_VALID (1 << 0) 758 #define DRM_SCANOUTPOS_INVBL (1 << 1) 759 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 760 761 #ifndef DMA_BIT_MASK 762 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 763 #endif 764 765 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 766 767 struct drm_driver { 768 int (*load)(struct drm_device *, unsigned long flags); 769 int (*use_msi)(struct drm_device *, unsigned long flags); 770 int (*firstopen)(struct drm_device *); 771 int (*open)(struct drm_device *, struct drm_file *); 772 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 773 void (*postclose)(struct drm_device *, struct drm_file *); 774 void (*lastclose)(struct drm_device *); 775 int (*unload)(struct drm_device *); 776 void (*reclaim_buffers_locked)(struct drm_device *, 777 struct drm_file *file_priv); 778 int (*dma_ioctl)(struct drm_device *dev, void *data, 779 struct drm_file *file_priv); 780 void (*dma_ready)(struct drm_device *); 781 int (*dma_quiescent)(struct drm_device *); 782 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 783 enum drm_lock_flags flags); 784 int (*dma_flush_unblock)(struct drm_device *, int context, 785 enum drm_lock_flags flags); 786 int (*context_ctor)(struct drm_device *dev, int context); 787 int (*context_dtor)(struct drm_device *dev, int context); 788 int (*kernel_context_switch)(struct drm_device *dev, int old, 789 int new); 790 int (*kernel_context_switch_unlock)(struct drm_device *dev); 791 void (*irq_preinstall)(struct drm_device *dev); 792 int (*irq_postinstall)(struct drm_device *dev); 793 void (*irq_uninstall)(struct drm_device *dev); 794 void (*irq_handler)(DRM_IRQ_ARGS); 795 796 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 797 int (*enable_vblank)(struct drm_device *dev, int crtc); 798 void (*disable_vblank)(struct drm_device *dev, int crtc); 799 int (*get_scanout_position)(struct drm_device *dev, int crtc, 800 int *vpos, int *hpos); 801 802 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 803 int *max_error, struct timeval *vblank_time, 804 unsigned flags); 805 806 int (*gem_init_object)(struct drm_gem_object *obj); 807 void (*gem_free_object)(struct drm_gem_object *obj); 808 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 809 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 810 811 struct cdev_pager_ops *gem_pager_ops; 812 813 int (*dumb_create)(struct drm_file *file_priv, 814 struct drm_device *dev, struct drm_mode_create_dumb *args); 815 int (*dumb_map_offset)(struct drm_file *file_priv, 816 struct drm_device *dev, uint32_t handle, uint64_t *offset); 817 int (*dumb_destroy)(struct drm_file *file_priv, 818 struct drm_device *dev, uint32_t handle); 819 820 int (*sysctl_init)(struct drm_device *dev, 821 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 822 void (*sysctl_cleanup)(struct drm_device *dev); 823 824 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 825 826 /** 827 * Called by \c drm_device_is_agp. Typically used to determine if a 828 * card is really attached to AGP or not. 829 * 830 * \param dev DRM device handle 831 * 832 * \returns 833 * One of three values is returned depending on whether or not the 834 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 835 * (return of 1), or may or may not be AGP (return of 2). 836 */ 837 int (*device_is_agp) (struct drm_device * dev); 838 839 drm_ioctl_desc_t *ioctls; 840 #ifdef COMPAT_FREEBSD32 841 drm_ioctl_desc_t *compat_ioctls; 842 int *compat_ioctls_nr; 843 #endif 844 int max_ioctl; 845 846 int buf_priv_size; 847 848 int major; 849 int minor; 850 int patchlevel; 851 const char *name; /* Simple driver name */ 852 const char *desc; /* Longer driver name */ 853 const char *date; /* Date of last major changes. */ 854 855 u32 driver_features; 856 }; 857 858 /** 859 * DRM minor structure. This structure represents a drm minor number. 860 */ 861 struct drm_minor { 862 int index; /**< Minor device number */ 863 int type; /**< Control or render */ 864 device_t kdev; /**< OS device */ 865 struct drm_device *dev; 866 867 struct drm_master *master; /* currently active master for this node */ 868 struct list_head master_list; 869 struct drm_mode_group mode_group; 870 }; 871 872 /* mode specified on the command line */ 873 struct drm_cmdline_mode { 874 bool specified; 875 bool refresh_specified; 876 bool bpp_specified; 877 int xres, yres; 878 int bpp; 879 int refresh; 880 bool rb; 881 bool interlace; 882 bool cvt; 883 bool margins; 884 enum drm_connector_force force; 885 }; 886 887 888 struct drm_pending_vblank_event { 889 struct drm_pending_event base; 890 int pipe; 891 struct drm_event_vblank event; 892 }; 893 894 /* Length for the array of resource pointers for drm_get_resource_*. */ 895 #define DRM_MAX_PCI_RESOURCE 6 896 897 /** 898 * DRM device structure. This structure represent a complete card that 899 * may contain multiple heads. 900 */ 901 struct drm_device { 902 struct drm_driver *driver; 903 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 904 905 uint16_t pci_device; /* PCI device id */ 906 uint16_t pci_vendor; /* PCI vendor id */ 907 uint16_t pci_subdevice; /* PCI subsystem device id */ 908 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 909 910 char *unique; /* Unique identifier: e.g., busid */ 911 int unique_len; /* Length of unique field */ 912 device_t device; /* Device instance from newbus */ 913 struct cdev *devnode; /* Device number for mknod */ 914 int if_version; /* Highest interface version set */ 915 916 int flags; /* Flags to open(2) */ 917 918 /* Locks */ 919 struct spinlock dma_lock; /* protects dev->dma */ 920 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 921 struct lock dev_lock; /* protects everything else */ 922 struct lock dev_struct_lock; 923 924 /* Usage Counters */ 925 int open_count; /* Outstanding files open */ 926 int buf_use; /* Buffers in use -- cannot alloc */ 927 928 /* Performance counters */ 929 unsigned long counters; 930 enum drm_stat_type types[15]; 931 atomic_t counts[15]; 932 933 /* Authentication */ 934 drm_file_list_t files; 935 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 936 937 /** \name Memory management */ 938 /*@{ */ 939 struct list_head maplist; /**< Linked list of regions */ 940 struct unrhdr *map_unrhdr; 941 942 drm_local_map_t **context_sareas; 943 int max_context; 944 945 drm_lock_data_t lock; /* Information on hardware lock */ 946 947 /* DMA queues (contexts) */ 948 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 949 950 /* Context support */ 951 int irq; /* Interrupt used by board */ 952 int msi_enabled; /* MSI enabled */ 953 int irqrid; /* Interrupt used by board */ 954 struct resource *irqr; /* Resource for interrupt used by board */ 955 void *irqh; /* Handle from bus_setup_intr */ 956 957 /* Storage of resource pointers for drm_get_resource_* */ 958 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 959 int pcirid[DRM_MAX_PCI_RESOURCE]; 960 961 int pci_domain; 962 int pci_bus; 963 int pci_slot; 964 int pci_func; 965 966 /** \name Context support */ 967 /*@{ */ 968 int irq_enabled; /**< True if irq handler is enabled */ 969 __volatile__ long context_flag; /**< Context swapping flag */ 970 int last_context; /**< Last current context */ 971 /*@} */ 972 973 int num_crtcs; 974 975 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 976 977 /* Sysctl support */ 978 struct drm_sysctl_info *sysctl; 979 int sysctl_node_idx; 980 981 drm_agp_head_t *agp; 982 drm_sg_mem_t *sg; /* Scatter gather memory */ 983 unsigned long *ctx_bitmap; 984 void *dev_private; 985 unsigned int agp_buffer_token; 986 drm_local_map_t *agp_buffer_map; 987 988 struct drm_minor *control; /**< Control node for card */ 989 struct drm_minor *primary; /**< render type primary screen head */ 990 991 void *drm_ttm_bdev; 992 993 int vblank_disable_allowed; 994 995 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 996 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 997 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 998 struct lock vbl_lock; 999 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 1000 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 1001 /* for wraparound handling */ 1002 int *vblank_enabled; /* so we don't call enable more than 1003 once per disable */ 1004 int *vblank_inmodeset; /* Display driver is setting mode */ 1005 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 1006 struct callout vblank_disable_callout; 1007 1008 u32 max_vblank_count; /**< size of vblank counter register */ 1009 1010 struct list_head vblank_event_list; 1011 struct lock event_lock; 1012 1013 struct drm_mode_config mode_config; /**< Current mode config */ 1014 1015 1016 /** \name GEM information */ 1017 /*@{ */ 1018 struct spinlock object_name_lock; 1019 struct idr object_name_idr; 1020 /*@} */ 1021 void *mm_private; 1022 1023 void *sysctl_private; 1024 char busid_str[128]; 1025 int modesetting; 1026 1027 int switch_power_state; 1028 }; 1029 1030 #define DRM_SWITCH_POWER_ON 0 1031 #define DRM_SWITCH_POWER_OFF 1 1032 #define DRM_SWITCH_POWER_CHANGING 2 1033 1034 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1035 int feature) 1036 { 1037 return ((dev->driver->driver_features & feature) ? 1 : 0); 1038 } 1039 1040 #if __OS_HAS_AGP 1041 static inline int drm_core_has_AGP(struct drm_device *dev) 1042 { 1043 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1044 } 1045 #else 1046 #define drm_core_has_AGP(dev) (0) 1047 #endif 1048 1049 enum dmi_field { 1050 DMI_NONE, 1051 DMI_BIOS_VENDOR, 1052 DMI_BIOS_VERSION, 1053 DMI_BIOS_DATE, 1054 DMI_SYS_VENDOR, 1055 DMI_PRODUCT_NAME, 1056 DMI_PRODUCT_VERSION, 1057 DMI_PRODUCT_SERIAL, 1058 DMI_PRODUCT_UUID, 1059 DMI_BOARD_VENDOR, 1060 DMI_BOARD_NAME, 1061 DMI_BOARD_VERSION, 1062 DMI_BOARD_SERIAL, 1063 DMI_BOARD_ASSET_TAG, 1064 DMI_CHASSIS_VENDOR, 1065 DMI_CHASSIS_TYPE, 1066 DMI_CHASSIS_VERSION, 1067 DMI_CHASSIS_SERIAL, 1068 DMI_CHASSIS_ASSET_TAG, 1069 DMI_STRING_MAX, 1070 }; 1071 1072 struct dmi_strmatch { 1073 unsigned char slot; 1074 char substr[79]; 1075 }; 1076 1077 struct dmi_system_id { 1078 int (*callback)(const struct dmi_system_id *); 1079 const char *ident; 1080 struct dmi_strmatch matches[4]; 1081 }; 1082 #define DMI_MATCH(a, b) {(a), (b)} 1083 bool dmi_check_system(const struct dmi_system_id *); 1084 1085 extern int drm_debug_flag; 1086 extern int drm_notyet_flag; 1087 extern unsigned int drm_vblank_offdelay; 1088 extern unsigned int drm_timestamp_precision; 1089 1090 /* Device setup support (drm_drv.c) */ 1091 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1092 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1093 int drm_create_cdevs(device_t kdev); 1094 int drm_detach(device_t kdev); 1095 d_ioctl_t drm_ioctl; 1096 d_open_t drm_open; 1097 d_close_t drm_close; 1098 d_read_t drm_read; 1099 d_kqfilter_t drm_kqfilter; 1100 d_mmap_t drm_mmap; 1101 d_mmap_single_t drm_mmap_single; 1102 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1103 1104 void drm_event_wakeup(struct drm_pending_event *e); 1105 1106 int drm_add_busid_modesetting(struct drm_device *dev, 1107 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1108 1109 /* File operations helpers (drm_fops.c) */ 1110 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1111 DRM_STRUCTPROC *p, 1112 struct drm_device *dev); 1113 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1114 DRM_STRUCTPROC *p); 1115 1116 #ifdef DUMBBELL_WIP 1117 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1118 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1119 int *prime_fd); 1120 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1121 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1122 1123 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1124 struct drm_file *file_priv); 1125 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1126 struct drm_file *file_priv); 1127 1128 #ifdef DUMBBELL_WIP 1129 /* 1130 * See drm_prime.c 1131 * -- dumbbell@ 1132 */ 1133 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1134 dma_addr_t *addrs, int max_pages); 1135 #endif /* DUMBBELL_WIP */ 1136 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1137 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1138 1139 1140 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1141 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1142 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1143 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1144 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1145 1146 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1147 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1148 struct drm_gem_object **obj); 1149 #endif /* DUMBBELL_WIP */ 1150 1151 /* Memory management support (drm_memory.c) */ 1152 void drm_mem_init(void); 1153 void drm_mem_uninit(void); 1154 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1155 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1156 void drm_ioremapfree(drm_local_map_t *map); 1157 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1158 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1159 1160 int drm_ctxbitmap_init(struct drm_device *dev); 1161 void drm_ctxbitmap_cleanup(struct drm_device *dev); 1162 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1163 int drm_ctxbitmap_next(struct drm_device *dev); 1164 1165 /* Locking IOCTL support (drm_lock.c) */ 1166 int drm_lock_take(struct drm_lock_data *lock_data, 1167 unsigned int context); 1168 int drm_lock_transfer(struct drm_lock_data *lock_data, 1169 unsigned int context); 1170 int drm_lock_free(struct drm_lock_data *lock_data, 1171 unsigned int context); 1172 1173 /* Buffer management support (drm_bufs.c) */ 1174 unsigned long drm_get_resource_start(struct drm_device *dev, 1175 unsigned int resource); 1176 unsigned long drm_get_resource_len(struct drm_device *dev, 1177 unsigned int resource); 1178 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1179 int drm_order(unsigned long size); 1180 int drm_addmap(struct drm_device *dev, unsigned long offset, 1181 unsigned long size, 1182 enum drm_map_type type, enum drm_map_flags flags, 1183 drm_local_map_t **map_ptr); 1184 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1185 int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request); 1186 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1187 1188 /* DMA support (drm_dma.c) */ 1189 int drm_dma_setup(struct drm_device *dev); 1190 void drm_dma_takedown(struct drm_device *dev); 1191 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1192 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1193 #define drm_core_reclaim_buffers drm_reclaim_buffers 1194 1195 /* IRQ support (drm_irq.c) */ 1196 int drm_irq_install(struct drm_device *dev); 1197 int drm_irq_uninstall(struct drm_device *dev); 1198 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 1199 void drm_driver_irq_preinstall(struct drm_device *dev); 1200 void drm_driver_irq_postinstall(struct drm_device *dev); 1201 void drm_driver_irq_uninstall(struct drm_device *dev); 1202 1203 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1204 void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1205 int drm_modeset_ctl(struct drm_device *dev, void *data, 1206 struct drm_file *file_priv); 1207 1208 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1209 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1210 struct drm_file *filp); 1211 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1212 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1213 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1214 struct timeval *vblanktime); 1215 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1216 void drm_handle_vblank_events(struct drm_device *dev, int crtc); 1217 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1218 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1219 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1220 extern void drm_vblank_cleanup(struct drm_device *dev); 1221 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1222 struct timeval *tvblank, unsigned flags); 1223 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1224 int crtc, int *max_error, 1225 struct timeval *vblank_time, 1226 unsigned flags, 1227 struct drm_crtc *refcrtc); 1228 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1229 1230 struct timeval ns_to_timeval(const int64_t nsec); 1231 int64_t timeval_to_ns(const struct timeval *tv); 1232 1233 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1234 int drm_device_is_agp(struct drm_device *dev); 1235 int drm_device_is_pcie(struct drm_device *dev); 1236 drm_agp_head_t *drm_agp_init(void); 1237 int drm_agp_acquire(struct drm_device *dev); 1238 int drm_agp_release(struct drm_device *dev); 1239 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 1240 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1241 void *drm_agp_allocate_memory(size_t pages, u32 type); 1242 int drm_agp_free_memory(void *handle); 1243 int drm_agp_bind_memory(void *handle, off_t start); 1244 int drm_agp_unbind_memory(void *handle); 1245 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1246 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1247 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1248 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1249 1250 /* Scatter Gather Support (drm_scatter.c) */ 1251 void drm_sg_cleanup(drm_sg_mem_t *entry); 1252 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1253 1254 /* sysctl support (drm_sysctl.h) */ 1255 extern int drm_sysctl_init(struct drm_device *dev); 1256 extern int drm_sysctl_cleanup(struct drm_device *dev); 1257 1258 /* ATI PCIGART support (ati_pcigart.c) */ 1259 int drm_ati_pcigart_init(struct drm_device *dev, 1260 struct drm_ati_pcigart_info *gart_info); 1261 int drm_ati_pcigart_cleanup(struct drm_device *dev, 1262 struct drm_ati_pcigart_info *gart_info); 1263 1264 /* Cache management (drm_memory.c) */ 1265 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1266 1267 /* Locking IOCTL support (drm_drv.c) */ 1268 int drm_lock(struct drm_device *dev, void *data, 1269 struct drm_file *file_priv); 1270 int drm_unlock(struct drm_device *dev, void *data, 1271 struct drm_file *file_priv); 1272 int drm_version(struct drm_device *dev, void *data, 1273 struct drm_file *file_priv); 1274 int drm_setversion(struct drm_device *dev, void *data, 1275 struct drm_file *file_priv); 1276 1277 /* Misc. IOCTL support (drm_ioctl.c) */ 1278 int drm_irq_by_busid(struct drm_device *dev, void *data, 1279 struct drm_file *file_priv); 1280 int drm_getunique(struct drm_device *dev, void *data, 1281 struct drm_file *file_priv); 1282 int drm_setunique(struct drm_device *dev, void *data, 1283 struct drm_file *file_priv); 1284 int drm_getmap(struct drm_device *dev, void *data, 1285 struct drm_file *file_priv); 1286 int drm_getclient(struct drm_device *dev, void *data, 1287 struct drm_file *file_priv); 1288 int drm_getstats(struct drm_device *dev, void *data, 1289 struct drm_file *file_priv); 1290 int drm_getcap(struct drm_device *dev, void *data, 1291 struct drm_file *file_priv); 1292 int drm_noop(struct drm_device *dev, void *data, 1293 struct drm_file *file_priv); 1294 1295 /* Context IOCTL support (drm_context.c) */ 1296 int drm_resctx(struct drm_device *dev, void *data, 1297 struct drm_file *file_priv); 1298 int drm_addctx(struct drm_device *dev, void *data, 1299 struct drm_file *file_priv); 1300 int drm_modctx(struct drm_device *dev, void *data, 1301 struct drm_file *file_priv); 1302 int drm_getctx(struct drm_device *dev, void *data, 1303 struct drm_file *file_priv); 1304 int drm_switchctx(struct drm_device *dev, void *data, 1305 struct drm_file *file_priv); 1306 int drm_newctx(struct drm_device *dev, void *data, 1307 struct drm_file *file_priv); 1308 int drm_rmctx(struct drm_device *dev, void *data, 1309 struct drm_file *file_priv); 1310 int drm_setsareactx(struct drm_device *dev, void *data, 1311 struct drm_file *file_priv); 1312 int drm_getsareactx(struct drm_device *dev, void *data, 1313 struct drm_file *file_priv); 1314 1315 /* Authentication IOCTL support (drm_auth.c) */ 1316 int drm_getmagic(struct drm_device *dev, void *data, 1317 struct drm_file *file_priv); 1318 int drm_authmagic(struct drm_device *dev, void *data, 1319 struct drm_file *file_priv); 1320 1321 /* Buffer management support (drm_bufs.c) */ 1322 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1323 struct drm_file *file_priv); 1324 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1325 struct drm_file *file_priv); 1326 int drm_addbufs(struct drm_device *dev, void *data, 1327 struct drm_file *file_priv); 1328 int drm_infobufs(struct drm_device *dev, void *data, 1329 struct drm_file *file_priv); 1330 int drm_markbufs(struct drm_device *dev, void *data, 1331 struct drm_file *file_priv); 1332 int drm_freebufs(struct drm_device *dev, void *data, 1333 struct drm_file *file_priv); 1334 int drm_mapbufs(struct drm_device *dev, void *data, 1335 struct drm_file *file_priv); 1336 1337 /* DMA support (drm_dma.c) */ 1338 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1339 1340 /* IRQ support (drm_irq.c) */ 1341 int drm_control(struct drm_device *dev, void *data, 1342 struct drm_file *file_priv); 1343 1344 /* AGP/GART support (drm_agpsupport.c) */ 1345 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1346 struct drm_file *file_priv); 1347 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1348 struct drm_file *file_priv); 1349 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1350 struct drm_file *file_priv); 1351 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1352 struct drm_file *file_priv); 1353 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1354 struct drm_file *file_priv); 1355 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1356 struct drm_file *file_priv); 1357 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1358 struct drm_file *file_priv); 1359 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1360 struct drm_file *file_priv); 1361 1362 /* Stub support (drm_stub.h) */ 1363 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1364 struct drm_file *file_priv); 1365 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1366 struct drm_file *file_priv); 1367 1368 /* Scatter Gather Support (drm_scatter.c) */ 1369 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1370 struct drm_file *file_priv); 1371 int drm_sg_free(struct drm_device *dev, void *data, 1372 struct drm_file *file_priv); 1373 1374 /* consistent PCI memory functions (drm_pci.c) */ 1375 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1376 size_t align, dma_addr_t maxaddr); 1377 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1378 1379 /* Graphics Execution Manager library functions (drm_gem.c) */ 1380 int drm_gem_init(struct drm_device *dev); 1381 void drm_gem_destroy(struct drm_device *dev); 1382 void drm_gem_object_release(struct drm_gem_object *obj); 1383 void drm_gem_object_free(struct kref *kref); 1384 1385 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1386 struct drm_file *file_priv); 1387 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1388 struct drm_file *file_priv); 1389 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1390 struct drm_file *file_priv); 1391 void drm_gem_object_handle_free(struct drm_gem_object *obj); 1392 1393 #include <drm/drm_global.h> 1394 1395 static inline void 1396 drm_gem_object_reference(struct drm_gem_object *obj) 1397 { 1398 kref_get(&obj->refcount); 1399 } 1400 1401 static inline void 1402 drm_gem_object_unreference(struct drm_gem_object *obj) 1403 { 1404 if (obj != NULL) 1405 kref_put(&obj->refcount, drm_gem_object_free); 1406 } 1407 1408 static inline void 1409 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1410 { 1411 if (obj != NULL) { 1412 struct drm_device *dev = obj->dev; 1413 DRM_LOCK(dev); 1414 kref_put(&obj->refcount, drm_gem_object_free); 1415 DRM_UNLOCK(dev); 1416 } 1417 } 1418 1419 int drm_gem_handle_create(struct drm_file *file_priv, 1420 struct drm_gem_object *obj, 1421 u32 *handlep); 1422 int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1423 1424 static inline void 1425 drm_gem_object_handle_reference(struct drm_gem_object *obj) 1426 { 1427 drm_gem_object_reference(obj); 1428 atomic_inc(&obj->handle_count); 1429 } 1430 1431 static inline void 1432 drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1433 { 1434 if (obj == NULL) 1435 return; 1436 1437 if (atomic_read(&obj->handle_count) == 0) 1438 return; 1439 /* 1440 * Must bump handle count first as this may be the last 1441 * ref, in which case the object would disappear before we 1442 * checked for a name 1443 */ 1444 if (atomic_dec_and_test(&obj->handle_count)) 1445 drm_gem_object_handle_free(obj); 1446 drm_gem_object_unreference(obj); 1447 } 1448 1449 static inline void 1450 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) 1451 { 1452 if (obj == NULL) 1453 return; 1454 1455 if (atomic_read(&obj->handle_count) == 0) 1456 return; 1457 1458 /* 1459 * Must bump handle count first as this may be the last 1460 * ref, in which case the object would disappear before we 1461 * checked for a name 1462 */ 1463 1464 if (atomic_dec_and_test(&obj->handle_count)) 1465 drm_gem_object_handle_free(obj); 1466 drm_gem_object_unreference_unlocked(obj); 1467 } 1468 1469 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, 1470 size_t size); 1471 int drm_gem_private_object_init(struct drm_device *dev, 1472 struct drm_gem_object *obj, size_t size); 1473 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1474 size_t size); 1475 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1476 struct drm_file *file_priv, uint32_t handle); 1477 1478 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1479 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1480 1481 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1482 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1483 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1484 vm_size_t size, struct vm_object **obj_res, int nprot); 1485 void drm_gem_pager_dtr(void *obj); 1486 1487 struct ttm_bo_device; 1488 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1489 vm_size_t size, struct vm_object **obj_res, int nprot); 1490 struct ttm_buffer_object; 1491 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1492 1493 void drm_device_lock_mtx(struct drm_device *dev); 1494 void drm_device_unlock_mtx(struct drm_device *dev); 1495 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1496 const char *msg, int timeout); 1497 void drm_device_assert_mtx_locked(struct drm_device *dev); 1498 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1499 1500 void drm_device_lock_struct(struct drm_device *dev); 1501 void drm_device_unlock_struct(struct drm_device *dev); 1502 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1503 const char *msg, int timeout); 1504 void drm_device_assert_struct_locked(struct drm_device *dev); 1505 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1506 1507 void drm_compat_locking_init(struct drm_device *dev); 1508 void drm_sleep_locking_init(struct drm_device *dev); 1509 1510 /* drm_modes.c */ 1511 bool drm_mode_parse_command_line_for_connector(const char *mode_option, 1512 struct drm_connector *connector, struct drm_cmdline_mode *mode); 1513 struct drm_display_mode *drm_mode_create_from_cmdline_mode( 1514 struct drm_device *dev, struct drm_cmdline_mode *cmd); 1515 1516 /* drm_edid.c */ 1517 u8 *drm_find_cea_extension(struct edid *edid); 1518 1519 /* Inline replacements for drm_alloc and friends */ 1520 static __inline__ void * 1521 drm_alloc(size_t size, struct malloc_type *area) 1522 { 1523 return kmalloc(size, area, M_NOWAIT); 1524 } 1525 1526 static __inline__ void * 1527 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1528 { 1529 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO); 1530 } 1531 1532 static __inline__ void * 1533 drm_realloc(void *oldpt, size_t oldsize, size_t size, 1534 struct malloc_type *area) 1535 { 1536 void *res; 1537 res = krealloc(oldpt, size, area, M_NOWAIT); 1538 if (res == NULL && oldpt != NULL) 1539 kfree(oldpt,area); 1540 return res; 1541 } 1542 1543 static __inline__ void 1544 drm_free(void *pt, struct malloc_type *area) 1545 { 1546 if (pt != NULL) 1547 kfree(pt, area); 1548 } 1549 1550 /* Inline replacements for DRM_IOREMAP macros */ 1551 static __inline__ void 1552 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1553 { 1554 map->virtual = drm_ioremap_wc(dev, map); 1555 } 1556 static __inline__ void 1557 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1558 { 1559 map->virtual = drm_ioremap(dev, map); 1560 } 1561 static __inline__ void 1562 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1563 { 1564 if ( map->virtual && map->size ) 1565 drm_ioremapfree(map); 1566 } 1567 1568 static __inline__ struct drm_local_map * 1569 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1570 { 1571 struct drm_map_list *_entry; 1572 1573 list_for_each_entry(_entry, &dev->maplist, head) { 1574 if (offset == (unsigned long)_entry->map->handle) 1575 return _entry->map; 1576 } 1577 return NULL; 1578 } 1579 1580 static __inline__ void drm_core_dropmap(struct drm_map *map) 1581 { 1582 } 1583 1584 /* FreeBSD compatibility macros */ 1585 #define PROC_LOCK(p) 1586 #define PROC_UNLOCK(p) 1587 1588 #define VM_OBJECT_RLOCK(object) VM_OBJECT_LOCK(object) 1589 #define VM_OBJECT_RUNLOCK(object) VM_OBJECT_UNLOCK(object) 1590 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1591 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1592 1593 #define CTR2(one,two,three,four) 1594 1595 #define DRM_PCIE_SPEED_25 1 1596 #define DRM_PCIE_SPEED_50 2 1597 #define DRM_PCIE_SPEED_80 4 1598 1599 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1600 1601 #define drm_can_sleep() (DRM_HZ & 1) 1602 1603 #endif /* __KERNEL__ */ 1604 #endif /* _DRM_P_H_ */ 1605