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/timer.h> 102 #include <linux/types.h> 103 #include <linux/wait.h> 104 105 #include <asm/uaccess.h> 106 107 struct drm_file; 108 struct drm_device; 109 110 #include "drm_os_freebsd.h" 111 #include "drm_hashtab.h" 112 #include "drm_mm.h" 113 114 #define DRM_UT_CORE 0x01 115 #define DRM_UT_DRIVER 0x02 116 #define DRM_UT_KMS 0x04 117 #define DRM_UT_PRIME 0x08 118 119 #ifdef DRM_DEBUG 120 #undef DRM_DEBUG 121 #define DRM_DEBUG_DEFAULT_ON 1 122 #endif /* DRM_DEBUG */ 123 124 #define DRM_DEBUGBITS_DEBUG 0x1 125 #define DRM_DEBUGBITS_KMS 0x2 126 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 127 128 #undef DRM_LINUX 129 #define DRM_LINUX 0 130 131 /***********************************************************************/ 132 /** \name DRM template customization defaults */ 133 /*@{*/ 134 135 /* driver capabilities and requirements mask */ 136 #define DRIVER_USE_AGP 0x1 137 #define DRIVER_REQUIRE_AGP 0x2 138 #define DRIVER_USE_MTRR 0x4 139 #define DRIVER_PCI_DMA 0x8 140 #define DRIVER_SG 0x10 141 #define DRIVER_HAVE_DMA 0x20 142 #define DRIVER_HAVE_IRQ 0x40 143 #define DRIVER_IRQ_SHARED 0x80 144 #define DRIVER_IRQ_VBL 0x100 145 #define DRIVER_DMA_QUEUE 0x200 146 #define DRIVER_FB_DMA 0x400 147 #define DRIVER_IRQ_VBL2 0x800 148 #define DRIVER_GEM 0x1000 149 #define DRIVER_MODESET 0x2000 150 #define DRIVER_PRIME 0x4000 151 #define DRIVER_LOCKLESS_IRQ 0x8000 152 153 /***********************************************************************/ 154 /** \name Begin the DRM... */ 155 /*@{*/ 156 157 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 158 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 159 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 160 161 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 162 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 163 #define DRM_GEM_MAX_IDX 0x3fffff 164 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 165 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 166 #define DRM_GEM_MAPPING_MAPOFF(o) \ 167 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 168 169 MALLOC_DECLARE(DRM_MEM_DMA); 170 MALLOC_DECLARE(DRM_MEM_SAREA); 171 MALLOC_DECLARE(DRM_MEM_DRIVER); 172 MALLOC_DECLARE(DRM_MEM_MAGIC); 173 MALLOC_DECLARE(DRM_MEM_MAPS); 174 MALLOC_DECLARE(DRM_MEM_BUFS); 175 MALLOC_DECLARE(DRM_MEM_SEGS); 176 MALLOC_DECLARE(DRM_MEM_PAGES); 177 MALLOC_DECLARE(DRM_MEM_FILES); 178 MALLOC_DECLARE(DRM_MEM_BUFLISTS); 179 MALLOC_DECLARE(DRM_MEM_AGPLISTS); 180 MALLOC_DECLARE(DRM_MEM_CTXBITMAP); 181 MALLOC_DECLARE(DRM_MEM_SGLISTS); 182 MALLOC_DECLARE(DRM_MEM_DRAWABLE); 183 MALLOC_DECLARE(DRM_MEM_MM); 184 MALLOC_DECLARE(DRM_MEM_HASHTAB); 185 MALLOC_DECLARE(DRM_MEM_KMS); 186 187 SYSCTL_DECL(_hw_drm); 188 189 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 190 191 /***********************************************************************/ 192 /** \name Internal types and structures */ 193 /*@{*/ 194 195 #define DRM_ARRAY_SIZE(x) NELEM(x) 196 #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 197 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 198 199 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 200 201 #define __OS_HAS_AGP 1 202 203 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 204 #define DRM_DEV_UID 0 205 #define DRM_DEV_GID 0 206 207 #define DRM_WAKEUP(w) wakeup((void *)w) 208 #define DRM_WAKEUP_INT(w) wakeup(w) 209 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 210 211 #define DRM_CURPROC curthread 212 #define DRM_STRUCTPROC struct thread 213 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1) 214 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE) 215 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE) 216 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 217 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout))) 218 #if defined(INVARIANTS) 219 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0); 220 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0); 221 #else 222 #define DRM_LOCK_ASSERT(d) 223 #define DRM_UNLOCK_ASSERT(d) 224 #endif 225 226 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 227 228 #define DRM_IRQ_ARGS void *arg 229 typedef void irqreturn_t; 230 #define IRQ_HANDLED /* nothing */ 231 #define IRQ_NONE /* nothing */ 232 233 enum { 234 DRM_IS_NOT_AGP, 235 DRM_IS_AGP, 236 DRM_MIGHT_BE_AGP 237 }; 238 #define DRM_AGP_MEM struct agp_memory_info 239 240 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 241 242 #define PAGE_ALIGN(addr) round_page(addr) 243 /* DRM_SUSER returns true if the user is superuser */ 244 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 245 #define DRM_AGP_FIND_DEVICE() agp_find_device() 246 #define DRM_MTRR_WC MDF_WRITECOMBINE 247 #define jiffies ticks 248 #define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz) 249 #define msecs_to_jiffies(x) (((int64_t)(x)) * hz / 1000) 250 #define time_after(a,b) ((long)(b) - (long)(a) < 0) 251 #define time_after_eq(a,b) ((long)(b) - (long)(a) <= 0) 252 253 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 254 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 255 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 256 */ 257 #define DRM_READMEMORYBARRIER() cpu_lfence() 258 #define DRM_WRITEMEMORYBARRIER() cpu_sfence() 259 #define DRM_MEMORYBARRIER() cpu_mfence() 260 261 #define DRM_READ8(map, offset) \ 262 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 263 (vm_offset_t)(offset)) 264 #define DRM_READ16(map, offset) \ 265 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 266 (vm_offset_t)(offset))) 267 #define DRM_READ32(map, offset) \ 268 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 269 (vm_offset_t)(offset))) 270 #define DRM_READ64(map, offset) \ 271 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 272 (vm_offset_t)(offset))) 273 #define DRM_WRITE8(map, offset, val) \ 274 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 275 (vm_offset_t)(offset)) = val 276 #define DRM_WRITE16(map, offset, val) \ 277 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 278 (vm_offset_t)(offset)) = htole16(val) 279 #define DRM_WRITE32(map, offset, val) \ 280 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 281 (vm_offset_t)(offset)) = htole32(val) 282 #define DRM_WRITE64(map, offset, val) \ 283 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 284 (vm_offset_t)(offset)) = htole64(val) 285 286 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 287 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 288 289 #define DRM_COPY_TO_USER(user, kern, size) \ 290 copyout(kern, user, size) 291 #define DRM_COPY_FROM_USER(kern, user, size) \ 292 copyin(user, kern, size) 293 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 294 copyin(arg2, arg1, arg3) 295 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 296 copyout(arg2, arg1, arg3) 297 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 298 ((val) = fuword32(uaddr), 0) 299 300 #define drm_can_sleep() (DRM_HZ & 1) 301 302 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 303 (_map) = (_dev)->context_sareas[_ctx]; \ 304 } while(0) 305 306 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 307 do { \ 308 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 309 dev->lock.file_priv != file_priv) { \ 310 DRM_ERROR("%s called without lock held\n", \ 311 __FUNCTION__); \ 312 return EINVAL; \ 313 } \ 314 } while (0) 315 316 /* Returns -errno to shared code */ 317 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 318 for ( ret = 0 ; !ret && !(condition) ; ) { \ 319 DRM_UNLOCK(dev); \ 320 lwkt_serialize_enter(&dev->irq_lock); \ 321 if (!(condition)) { \ 322 tsleep_interlock(&(queue), PCATCH); \ 323 lwkt_serialize_exit(&dev->irq_lock); \ 324 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 325 "drmwtq", (timeout)); \ 326 } else { \ 327 lwkt_serialize_exit(&dev->irq_lock); \ 328 } \ 329 DRM_LOCK(dev); \ 330 } 331 332 __inline static void 333 vm_page_unhold_pages(vm_page_t *ma, int count) 334 { 335 int i; 336 337 for (i = 0; i < count; i++) 338 vm_page_unhold(ma[i]); 339 } 340 341 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 342 vm_memattr_t memattr); 343 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 344 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 345 346 #define DRM_ERROR(fmt, ...) \ 347 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 348 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 349 350 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 351 352 #define DRM_DEBUG(fmt, ...) do { \ 353 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 354 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 355 __func__ , ##__VA_ARGS__); \ 356 } while (0) 357 358 #define DRM_DEBUG_KMS(fmt, ...) do { \ 359 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 360 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 361 __func__ , ##__VA_ARGS__); \ 362 } while (0) 363 364 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 365 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 366 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 367 __func__ , ##__VA_ARGS__); \ 368 } while (0) 369 370 #define dev_err(dev, fmt, ...) \ 371 device_printf((dev), "error: " fmt, ## __VA_ARGS__) 372 #define dev_warn(dev, fmt, ...) \ 373 device_printf((dev), "warning: " fmt, ## __VA_ARGS__) 374 #define dev_info(dev, fmt, ...) \ 375 device_printf((dev), "info: " fmt, ## __VA_ARGS__) 376 #define dev_dbg(dev, fmt, ...) do { \ 377 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 378 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 379 } \ 380 } while (0) 381 382 typedef struct drm_pci_id_list 383 { 384 int vendor; 385 int device; 386 long driver_private; 387 char *name; 388 } drm_pci_id_list_t; 389 390 struct drm_msi_blacklist_entry 391 { 392 int vendor; 393 int device; 394 }; 395 396 #define DRM_IOCTL_NR(n) ((n) & 0xff) 397 398 #define DRM_AUTH 0x1 399 #define DRM_MASTER 0x2 400 #define DRM_ROOT_ONLY 0x4 401 #define DRM_CONTROL_ALLOW 0x8 402 #define DRM_UNLOCKED 0x10 403 404 typedef struct drm_ioctl_desc { 405 unsigned long cmd; 406 int (*func)(struct drm_device *dev, void *data, 407 struct drm_file *file_priv); 408 int flags; 409 unsigned int cmd_drv; 410 } drm_ioctl_desc_t; 411 412 /** 413 * Creates a driver or general drm_ioctl_desc array entry for the given 414 * ioctl, for use by drm_ioctl(). 415 */ 416 #define DRM_IOCTL_DEF(ioctl, func, flags) \ 417 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 418 419 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 420 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 421 422 typedef struct drm_magic_entry { 423 drm_magic_t magic; 424 struct drm_file *priv; 425 struct drm_magic_entry *next; 426 } drm_magic_entry_t; 427 428 typedef struct drm_magic_head { 429 struct drm_magic_entry *head; 430 struct drm_magic_entry *tail; 431 } drm_magic_head_t; 432 433 typedef struct drm_buf { 434 int idx; /**< Index into master buflist */ 435 int total; /**< Buffer size */ 436 int order; /**< log-base-2(total) */ 437 int used; /**< Amount of buffer in use (for DMA) */ 438 unsigned long offset; /**< Byte offset (used internally) */ 439 void *address; /**< Address of buffer */ 440 unsigned long bus_address; /**< Bus address of buffer */ 441 struct drm_buf *next; /**< Kernel-only: used for free list */ 442 __volatile__ int waiting; /**< On kernel DMA queue */ 443 __volatile__ int pending; /**< On hardware DMA queue */ 444 struct drm_file *file_priv; /**< Private of holding file descr */ 445 int context; /**< Kernel queue for this buffer */ 446 int while_locked; /**< Dispatch this buffer while locked */ 447 enum { 448 DRM_LIST_NONE = 0, 449 DRM_LIST_FREE = 1, 450 DRM_LIST_WAIT = 2, 451 DRM_LIST_PEND = 3, 452 DRM_LIST_PRIO = 4, 453 DRM_LIST_RECLAIM = 5 454 } list; /**< Which list we're on */ 455 456 int dev_priv_size; /**< Size of buffer private storage */ 457 void *dev_private; /**< Per-buffer private storage */ 458 } drm_buf_t; 459 460 struct drm_freelist { 461 int initialized; /* Freelist in use */ 462 atomic_t count; /* Number of free buffers */ 463 drm_buf_t *next; /* End pointer */ 464 465 wait_queue_head_t waiting; /**< Processes waiting on free bufs */ 466 int low_mark; /* Low water mark */ 467 int high_mark; /* High water mark */ 468 }; 469 470 typedef struct drm_dma_handle { 471 void *vaddr; 472 bus_addr_t busaddr; 473 bus_dma_tag_t tag; 474 bus_dmamap_t map; 475 } drm_dma_handle_t; 476 477 typedef struct drm_buf_entry { 478 int buf_size; 479 int buf_count; 480 drm_buf_t *buflist; 481 int seg_count; 482 drm_dma_handle_t **seglist; 483 int page_order; 484 485 struct drm_freelist freelist; 486 } drm_buf_entry_t; 487 488 /* Event queued up for userspace to read */ 489 struct drm_pending_event { 490 struct drm_event *event; 491 struct list_head link; 492 struct drm_file *file_priv; 493 pid_t pid; /* pid of requester, no guarantee it's valid by the time 494 we deliver the event, for tracing only */ 495 void (*destroy)(struct drm_pending_event *event); 496 }; 497 498 /* initial implementaton using a linked list - todo hashtab */ 499 struct drm_prime_file_private { 500 struct list_head head; 501 #ifdef DUMBBELL_WIP 502 struct mutex lock; 503 #endif /* DUMBBELL_WIP */ 504 }; 505 506 /** File private data */ 507 struct drm_file { 508 int authenticated; 509 struct drm_device *dev; 510 int master; 511 pid_t pid; 512 uid_t uid; 513 drm_magic_t magic; 514 unsigned long ioctl_count; 515 struct list_head lhead; 516 517 /** Mapping of mm object handles to object pointers. */ 518 struct idr object_idr; 519 /** Lock for synchronization of access to object_idr. */ 520 struct lock table_lock; 521 522 void *driver_priv; 523 524 int is_master; 525 struct drm_master *masterp; 526 527 struct list_head fbs; 528 529 wait_queue_head_t event_wait; 530 struct list_head event_list; 531 int event_space; 532 533 struct drm_prime_file_private prime; 534 }; 535 536 /** 537 * Lock data. 538 */ 539 struct drm_lock_data { 540 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 541 /** Private of lock holder's file (NULL=kernel) */ 542 struct drm_file *file_priv; 543 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 544 unsigned long lock_time; /**< Time of last lock in jiffies */ 545 }; 546 547 /* This structure, in the struct drm_device, is always initialized while the 548 * device 549 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 550 * when set marks that no further bufs may be allocated until device teardown 551 * occurs (when the last open of the device has closed). The high/low 552 * watermarks of bufs are only touched by the X Server, and thus not 553 * concurrently accessed, so no locking is needed. 554 */ 555 typedef struct drm_device_dma { 556 557 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 558 int buf_count; /**< total number of buffers */ 559 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 560 int seg_count; 561 int page_count; /**< number of pages */ 562 unsigned long *pagelist; /**< page list */ 563 unsigned long byte_count; 564 enum { 565 _DRM_DMA_USE_AGP = 0x01, 566 _DRM_DMA_USE_SG = 0x02, 567 _DRM_DMA_USE_FB = 0x04, 568 _DRM_DMA_USE_PCI_RO = 0x08 569 } flags; 570 571 } drm_device_dma_t; 572 573 typedef struct drm_agp_mem { 574 void *handle; 575 unsigned long bound; /* address */ 576 int pages; 577 struct drm_agp_mem *prev; 578 struct drm_agp_mem *next; 579 } drm_agp_mem_t; 580 581 typedef struct drm_agp_head { 582 device_t agpdev; 583 struct agp_info agp_info; 584 const char *chipset; 585 drm_agp_mem_t *memory; 586 unsigned long mode; 587 int enabled; 588 int acquired; 589 unsigned long base; 590 int agp_mtrr; 591 int cant_use_aperture; 592 unsigned long page_mask; 593 } drm_agp_head_t; 594 595 typedef struct drm_sg_mem { 596 vm_offset_t vaddr; 597 vm_paddr_t *busaddr; 598 vm_pindex_t pages; 599 } drm_sg_mem_t; 600 601 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 602 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 603 604 /** 605 * Kernel side of a mapping 606 */ 607 struct drm_local_map { 608 unsigned long offset; /* Physical address (0 for SAREA) */ 609 unsigned long size; /* Physical size (bytes) */ 610 enum drm_map_type type; /* Type of memory mapped */ 611 enum drm_map_flags flags; /* Flags */ 612 void *handle; /* User-space: "Handle" to pass to mmap */ 613 /* Kernel-space: kernel-virtual address */ 614 int mtrr; /* Boolean: MTRR used */ 615 /* Private data */ 616 int rid; /* PCI resource ID for bus_space */ 617 void *virtual; /* Kernel-space: kernel-virtual address */ 618 struct resource *bsr; 619 bus_space_tag_t bst; 620 bus_space_handle_t bsh; 621 drm_dma_handle_t *dmah; 622 TAILQ_ENTRY(drm_local_map) link; 623 }; 624 625 typedef struct drm_local_map drm_local_map_t; 626 627 /** 628 * Mappings list 629 */ 630 struct drm_map_list { 631 struct list_head head; /**< list head */ 632 struct drm_hash_item hash; 633 struct drm_local_map *map; /**< mapping */ 634 uint64_t user_token; 635 struct drm_master *master; 636 struct drm_mm_node *file_offset_node; /**< fake offset */ 637 }; 638 639 struct drm_vblank_info { 640 wait_queue_head_t queue; /* vblank wait queue */ 641 atomic_t count; /* number of VBLANK interrupts */ 642 /* (driver must alloc the right number of counters) */ 643 atomic_t refcount; /* number of users of vblank interrupts */ 644 u32 last; /* protected by dev->vbl_lock, used */ 645 /* for wraparound handling */ 646 int enabled; /* so we don't call enable more than */ 647 /* once per disable */ 648 int inmodeset; /* Display driver is setting mode */ 649 }; 650 651 /* location of GART table */ 652 #define DRM_ATI_GART_MAIN 1 653 #define DRM_ATI_GART_FB 2 654 655 #define DRM_ATI_GART_PCI 1 656 #define DRM_ATI_GART_PCIE 2 657 #define DRM_ATI_GART_IGP 3 658 659 struct drm_ati_pcigart_info { 660 int gart_table_location; 661 int gart_reg_if; 662 void *addr; 663 dma_addr_t bus_addr; 664 dma_addr_t table_mask; 665 dma_addr_t member_mask; 666 struct drm_dma_handle *table_handle; 667 drm_local_map_t mapping; 668 int table_size; 669 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 670 }; 671 672 /** 673 * GEM specific mm private for tracking GEM objects 674 */ 675 struct drm_gem_mm { 676 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 677 struct unrhdr *idxunr; 678 }; 679 680 struct drm_gem_object { 681 /** Reference count of this object */ 682 struct kref refcount; 683 684 /** Handle count of this object. Each handle also holds a reference */ 685 atomic_t handle_count; /* number of handles on this object */ 686 687 /** Related drm device */ 688 struct drm_device *dev; 689 690 /** File representing the shmem storage: filp in Linux parlance */ 691 vm_object_t vm_obj; 692 693 bool on_map; 694 struct drm_hash_item map_list; 695 696 /** 697 * Size of the object, in bytes. Immutable over the object's 698 * lifetime. 699 */ 700 size_t size; 701 702 /** 703 * Global name for this object, starts at 1. 0 means unnamed. 704 * Access is covered by the object_name_lock in the related drm_device 705 */ 706 int name; 707 708 /** 709 * Memory domains. These monitor which caches contain read/write data 710 * related to the object. When transitioning from one set of domains 711 * to another, the driver is called to ensure that caches are suitably 712 * flushed and invalidated 713 */ 714 uint32_t read_domains; 715 uint32_t write_domain; 716 717 /** 718 * While validating an exec operation, the 719 * new read/write domain values are computed here. 720 * They will be transferred to the above values 721 * at the point that any cache flushing occurs 722 */ 723 uint32_t pending_read_domains; 724 uint32_t pending_write_domain; 725 726 void *driver_private; 727 728 #ifdef DUMBBELL_WIP 729 /* dma buf exported from this GEM object */ 730 struct dma_buf *export_dma_buf; 731 732 /* dma buf attachment backing this object */ 733 struct dma_buf_attachment *import_attach; 734 #endif /* DUMBBELL_WIP */ 735 }; 736 737 #include "drm_crtc.h" 738 739 /* per-master structure */ 740 struct drm_master { 741 742 struct kref refcount; /* refcount for this master */ 743 744 struct list_head head; /**< each minor contains a list of masters */ 745 struct drm_minor *minor; /**< link back to minor we are a master for */ 746 747 char *unique; /**< Unique identifier: e.g., busid */ 748 int unique_len; /**< Length of unique field */ 749 int unique_size; /**< amount allocated */ 750 751 int blocked; /**< Blocked due to VC switch? */ 752 753 /** \name Authentication */ 754 /*@{ */ 755 struct drm_open_hash magiclist; 756 struct list_head magicfree; 757 /*@} */ 758 759 struct drm_lock_data lock; /**< Information on hardware lock */ 760 761 void *driver_priv; /**< Private structure for driver to use */ 762 }; 763 764 /* Size of ringbuffer for vblank timestamps. Just double-buffer 765 * in initial implementation. 766 */ 767 #define DRM_VBLANKTIME_RBSIZE 2 768 769 /* Flags and return codes for get_vblank_timestamp() driver function. */ 770 #define DRM_CALLED_FROM_VBLIRQ 1 771 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 772 #define DRM_VBLANKTIME_INVBL (1 << 1) 773 774 /* get_scanout_position() return flags */ 775 #define DRM_SCANOUTPOS_VALID (1 << 0) 776 #define DRM_SCANOUTPOS_INVBL (1 << 1) 777 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 778 779 #ifndef DMA_BIT_MASK 780 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 781 #endif 782 783 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 784 785 struct drm_driver { 786 int (*load)(struct drm_device *, unsigned long flags); 787 int (*use_msi)(struct drm_device *, unsigned long flags); 788 int (*firstopen)(struct drm_device *); 789 int (*open)(struct drm_device *, struct drm_file *); 790 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 791 void (*postclose)(struct drm_device *, struct drm_file *); 792 void (*lastclose)(struct drm_device *); 793 int (*unload)(struct drm_device *); 794 void (*reclaim_buffers_locked)(struct drm_device *, 795 struct drm_file *file_priv); 796 int (*dma_ioctl)(struct drm_device *dev, void *data, 797 struct drm_file *file_priv); 798 void (*dma_ready)(struct drm_device *); 799 int (*dma_quiescent)(struct drm_device *); 800 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 801 enum drm_lock_flags flags); 802 int (*dma_flush_unblock)(struct drm_device *, int context, 803 enum drm_lock_flags flags); 804 int (*context_ctor)(struct drm_device *dev, int context); 805 int (*context_dtor)(struct drm_device *dev, int context); 806 int (*kernel_context_switch)(struct drm_device *dev, int old, 807 int new); 808 int (*kernel_context_switch_unlock)(struct drm_device *dev); 809 void (*irq_preinstall)(struct drm_device *dev); 810 int (*irq_postinstall)(struct drm_device *dev); 811 void (*irq_uninstall)(struct drm_device *dev); 812 void (*irq_handler)(DRM_IRQ_ARGS); 813 814 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 815 int (*enable_vblank)(struct drm_device *dev, int crtc); 816 void (*disable_vblank)(struct drm_device *dev, int crtc); 817 int (*get_scanout_position)(struct drm_device *dev, int crtc, 818 int *vpos, int *hpos); 819 820 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 821 int *max_error, struct timeval *vblank_time, 822 unsigned flags); 823 824 int (*gem_init_object)(struct drm_gem_object *obj); 825 void (*gem_free_object)(struct drm_gem_object *obj); 826 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 827 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 828 829 struct cdev_pager_ops *gem_pager_ops; 830 831 int (*dumb_create)(struct drm_file *file_priv, 832 struct drm_device *dev, struct drm_mode_create_dumb *args); 833 int (*dumb_map_offset)(struct drm_file *file_priv, 834 struct drm_device *dev, uint32_t handle, uint64_t *offset); 835 int (*dumb_destroy)(struct drm_file *file_priv, 836 struct drm_device *dev, uint32_t handle); 837 838 int (*sysctl_init)(struct drm_device *dev, 839 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 840 void (*sysctl_cleanup)(struct drm_device *dev); 841 842 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 843 844 /** 845 * Called by \c drm_device_is_agp. Typically used to determine if a 846 * card is really attached to AGP or not. 847 * 848 * \param dev DRM device handle 849 * 850 * \returns 851 * One of three values is returned depending on whether or not the 852 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 853 * (return of 1), or may or may not be AGP (return of 2). 854 */ 855 int (*device_is_agp) (struct drm_device * dev); 856 857 drm_ioctl_desc_t *ioctls; 858 #ifdef COMPAT_FREEBSD32 859 drm_ioctl_desc_t *compat_ioctls; 860 int *compat_ioctls_nr; 861 #endif 862 int max_ioctl; 863 864 int buf_priv_size; 865 866 int major; 867 int minor; 868 int patchlevel; 869 const char *name; /* Simple driver name */ 870 const char *desc; /* Longer driver name */ 871 const char *date; /* Date of last major changes. */ 872 873 u32 driver_features; 874 }; 875 876 /** 877 * DRM minor structure. This structure represents a drm minor number. 878 */ 879 struct drm_minor { 880 int index; /**< Minor device number */ 881 int type; /**< Control or render */ 882 device_t kdev; /**< OS device */ 883 struct drm_device *dev; 884 885 struct drm_master *master; /* currently active master for this node */ 886 struct list_head master_list; 887 struct drm_mode_group mode_group; 888 }; 889 890 /* mode specified on the command line */ 891 struct drm_cmdline_mode { 892 bool specified; 893 bool refresh_specified; 894 bool bpp_specified; 895 int xres, yres; 896 int bpp; 897 int refresh; 898 bool rb; 899 bool interlace; 900 bool cvt; 901 bool margins; 902 enum drm_connector_force force; 903 }; 904 905 906 struct drm_pending_vblank_event { 907 struct drm_pending_event base; 908 int pipe; 909 struct drm_event_vblank event; 910 }; 911 912 /* Length for the array of resource pointers for drm_get_resource_*. */ 913 #define DRM_MAX_PCI_RESOURCE 6 914 915 /** 916 * DRM device structure. This structure represent a complete card that 917 * may contain multiple heads. 918 */ 919 struct drm_device { 920 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 921 922 uint16_t pci_device; /* PCI device id */ 923 uint16_t pci_vendor; /* PCI vendor id */ 924 uint16_t pci_subdevice; /* PCI subsystem device id */ 925 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 926 927 char *unique; /* Unique identifier: e.g., busid */ 928 int unique_len; /* Length of unique field */ 929 struct cdev *devnode; /* Device number for mknod */ 930 int if_version; /* Highest interface version set */ 931 932 int flags; /* Flags to open(2) */ 933 934 /* Locks */ 935 struct spinlock dma_lock; /* protects dev->dma */ 936 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 937 struct lock dev_lock; /* protects everything else */ 938 struct lock dev_struct_lock; 939 940 /* Usage Counters */ 941 int open_count; /* Outstanding files open */ 942 int buf_use; /* Buffers in use -- cannot alloc */ 943 944 /* Performance counters */ 945 unsigned long counters; 946 enum drm_stat_type types[15]; 947 atomic_t counts[15]; 948 949 /* Authentication */ 950 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 951 952 /** \name Locks */ 953 /*@{ */ 954 struct lock struct_mutex; /**< For others */ 955 /*@} */ 956 957 struct list_head filelist; 958 959 /** \name Memory management */ 960 /*@{ */ 961 struct list_head maplist; /**< Linked list of regions */ 962 struct unrhdr *map_unrhdr; 963 964 drm_local_map_t **context_sareas; 965 int max_context; 966 967 struct drm_lock_data lock; /* Information on hardware lock */ 968 969 /* DMA queues (contexts) */ 970 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 971 972 /* Context support */ 973 int irq; /* Interrupt used by board */ 974 int msi_enabled; /* MSI enabled */ 975 int irqrid; /* Interrupt used by board */ 976 struct resource *irqr; /* Resource for interrupt used by board */ 977 void *irqh; /* Handle from bus_setup_intr */ 978 979 /* Storage of resource pointers for drm_get_resource_* */ 980 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 981 int pcirid[DRM_MAX_PCI_RESOURCE]; 982 983 int pci_domain; 984 int pci_bus; 985 int pci_slot; 986 int pci_func; 987 988 /** \name Context support */ 989 /*@{ */ 990 int irq_enabled; /**< True if irq handler is enabled */ 991 __volatile__ long context_flag; /**< Context swapping flag */ 992 int last_context; /**< Last current context */ 993 /*@} */ 994 995 int num_crtcs; 996 997 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 998 999 /* Sysctl support */ 1000 struct drm_sysctl_info *sysctl; 1001 int sysctl_node_idx; 1002 1003 drm_agp_head_t *agp; 1004 1005 struct device *dev; /**< Device structure */ 1006 1007 drm_sg_mem_t *sg; /* Scatter gather memory */ 1008 unsigned long *ctx_bitmap; 1009 void *dev_private; 1010 1011 void *drm_ttm_bdev; 1012 1013 /* 1014 * At load time, disabling the vblank interrupt won't be allowed since 1015 * old clients may not call the modeset ioctl and therefore misbehave. 1016 * Once the modeset ioctl *has* been called though, we can safely 1017 * disable them when unused. 1018 */ 1019 int vblank_disable_allowed; 1020 1021 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */ 1022 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 1023 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 1024 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 1025 struct lock vbl_lock; 1026 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 1027 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 1028 /* for wraparound handling */ 1029 int *vblank_enabled; /* so we don't call enable more than 1030 once per disable */ 1031 int *vblank_inmodeset; /* Display driver is setting mode */ 1032 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 1033 struct timer_list vblank_disable_timer; 1034 1035 u32 max_vblank_count; /**< size of vblank counter register */ 1036 1037 /** 1038 * List of events 1039 */ 1040 struct list_head vblank_event_list; 1041 struct lock event_lock; 1042 1043 struct drm_driver *driver; 1044 struct drm_local_map *agp_buffer_map; 1045 unsigned int agp_buffer_token; 1046 struct drm_minor *control; /**< Control node for card */ 1047 struct drm_minor *primary; /**< render type primary screen head */ 1048 1049 struct drm_mode_config mode_config; /**< Current mode config */ 1050 1051 /** \name GEM information */ 1052 /*@{ */ 1053 struct lock object_name_lock; 1054 struct idr object_name_idr; 1055 /*@} */ 1056 void *mm_private; 1057 1058 void *sysctl_private; 1059 char busid_str[128]; 1060 int modesetting; 1061 1062 int switch_power_state; 1063 }; 1064 1065 #define DRM_SWITCH_POWER_ON 0 1066 #define DRM_SWITCH_POWER_OFF 1 1067 #define DRM_SWITCH_POWER_CHANGING 2 1068 1069 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1070 int feature) 1071 { 1072 return ((dev->driver->driver_features & feature) ? 1 : 0); 1073 } 1074 1075 #if __OS_HAS_AGP 1076 static inline int drm_core_has_AGP(struct drm_device *dev) 1077 { 1078 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1079 } 1080 #else 1081 #define drm_core_has_AGP(dev) (0) 1082 #endif 1083 1084 enum dmi_field { 1085 DMI_NONE, 1086 DMI_BIOS_VENDOR, 1087 DMI_BIOS_VERSION, 1088 DMI_BIOS_DATE, 1089 DMI_SYS_VENDOR, 1090 DMI_PRODUCT_NAME, 1091 DMI_PRODUCT_VERSION, 1092 DMI_PRODUCT_SERIAL, 1093 DMI_PRODUCT_UUID, 1094 DMI_BOARD_VENDOR, 1095 DMI_BOARD_NAME, 1096 DMI_BOARD_VERSION, 1097 DMI_BOARD_SERIAL, 1098 DMI_BOARD_ASSET_TAG, 1099 DMI_CHASSIS_VENDOR, 1100 DMI_CHASSIS_TYPE, 1101 DMI_CHASSIS_VERSION, 1102 DMI_CHASSIS_SERIAL, 1103 DMI_CHASSIS_ASSET_TAG, 1104 DMI_STRING_MAX, 1105 }; 1106 1107 struct dmi_strmatch { 1108 unsigned char slot; 1109 char substr[79]; 1110 }; 1111 1112 struct dmi_system_id { 1113 int (*callback)(const struct dmi_system_id *); 1114 const char *ident; 1115 struct dmi_strmatch matches[4]; 1116 }; 1117 #define DMI_MATCH(a, b) {(a), (b)} 1118 bool dmi_check_system(const struct dmi_system_id *); 1119 1120 extern int drm_notyet_flag; 1121 extern int drm_debug; 1122 1123 extern unsigned int drm_vblank_offdelay; 1124 extern unsigned int drm_timestamp_precision; 1125 extern unsigned int drm_timestamp_monotonic; 1126 1127 /* Device setup support (drm_drv.c) */ 1128 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1129 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1130 int drm_create_cdevs(device_t kdev); 1131 int drm_detach(device_t kdev); 1132 d_ioctl_t drm_ioctl; 1133 d_open_t drm_open; 1134 d_close_t drm_close; 1135 d_read_t drm_read; 1136 d_kqfilter_t drm_kqfilter; 1137 d_mmap_t drm_mmap; 1138 d_mmap_single_t drm_mmap_single; 1139 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1140 1141 void drm_cdevpriv_dtor(void *cd); 1142 1143 void drm_event_wakeup(struct drm_pending_event *e); 1144 1145 int drm_add_busid_modesetting(struct drm_device *dev, 1146 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1147 1148 /* File operations helpers (drm_fops.c) */ 1149 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1150 DRM_STRUCTPROC *p, 1151 struct drm_device *dev, 1152 struct file *fp); 1153 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1154 DRM_STRUCTPROC *p); 1155 1156 #ifdef DUMBBELL_WIP 1157 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1158 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1159 int *prime_fd); 1160 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1161 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1162 1163 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1164 struct drm_file *file_priv); 1165 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1166 struct drm_file *file_priv); 1167 1168 #ifdef DUMBBELL_WIP 1169 /* 1170 * See drm_prime.c 1171 * -- dumbbell@ 1172 */ 1173 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1174 dma_addr_t *addrs, int max_pages); 1175 #endif /* DUMBBELL_WIP */ 1176 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1177 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1178 1179 1180 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1181 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1182 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1183 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1184 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1185 1186 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1187 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1188 struct drm_gem_object **obj); 1189 #endif /* DUMBBELL_WIP */ 1190 1191 /* Memory management support (drm_memory.c) */ 1192 void drm_mem_init(void); 1193 void drm_mem_uninit(void); 1194 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1195 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1196 void drm_ioremapfree(drm_local_map_t *map); 1197 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1198 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1199 1200 int drm_ctxbitmap_init(struct drm_device *dev); 1201 void drm_ctxbitmap_cleanup(struct drm_device *dev); 1202 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1203 int drm_ctxbitmap_next(struct drm_device *dev); 1204 1205 /* Locking IOCTL support (drm_lock.c) */ 1206 int drm_lock_take(struct drm_lock_data *lock_data, 1207 unsigned int context); 1208 int drm_lock_transfer(struct drm_lock_data *lock_data, 1209 unsigned int context); 1210 int drm_lock_free(struct drm_lock_data *lock_data, 1211 unsigned int context); 1212 1213 /* 1214 * These are exported to drivers so that they can implement fencing using 1215 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1216 */ 1217 1218 unsigned long drm_get_resource_start(struct drm_device *dev, 1219 unsigned int resource); 1220 unsigned long drm_get_resource_len(struct drm_device *dev, 1221 unsigned int resource); 1222 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1223 int drm_order(unsigned long size); 1224 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1225 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1226 extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1227 unsigned int size, enum drm_map_type type, 1228 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1229 1230 /* DMA support (drm_dma.c) */ 1231 int drm_dma_setup(struct drm_device *dev); 1232 void drm_dma_takedown(struct drm_device *dev); 1233 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1234 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1235 #define drm_core_reclaim_buffers drm_reclaim_buffers 1236 1237 /* IRQ support (drm_irq.h) */ 1238 int drm_irq_install(struct drm_device *dev); 1239 int drm_irq_uninstall(struct drm_device *dev); 1240 void drm_driver_irq_preinstall(struct drm_device *dev); 1241 void drm_driver_irq_postinstall(struct drm_device *dev); 1242 void drm_driver_irq_uninstall(struct drm_device *dev); 1243 1244 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1245 void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1246 int drm_modeset_ctl(struct drm_device *dev, void *data, 1247 struct drm_file *file_priv); 1248 1249 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1250 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1251 struct drm_file *filp); 1252 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1253 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1254 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1255 struct timeval *vblanktime); 1256 extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1257 struct drm_pending_vblank_event *e); 1258 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1259 void drm_handle_vblank_events(struct drm_device *dev, int crtc); 1260 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1261 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1262 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1263 extern void drm_vblank_cleanup(struct drm_device *dev); 1264 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1265 struct timeval *tvblank, unsigned flags); 1266 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1267 int crtc, int *max_error, 1268 struct timeval *vblank_time, 1269 unsigned flags, 1270 struct drm_crtc *refcrtc); 1271 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1272 1273 struct timeval ns_to_timeval(const int64_t nsec); 1274 int64_t timeval_to_ns(const struct timeval *tv); 1275 1276 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1277 int drm_device_is_agp(struct drm_device *dev); 1278 int drm_device_is_pcie(struct drm_device *dev); 1279 drm_agp_head_t *drm_agp_init(void); 1280 int drm_agp_acquire(struct drm_device *dev); 1281 int drm_agp_release(struct drm_device *dev); 1282 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 1283 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1284 void *drm_agp_allocate_memory(size_t pages, u32 type); 1285 int drm_agp_free_memory(void *handle); 1286 int drm_agp_bind_memory(void *handle, off_t start); 1287 int drm_agp_unbind_memory(void *handle); 1288 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1289 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1290 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1291 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1292 1293 /* Scatter Gather Support (drm_scatter.c) */ 1294 void drm_sg_cleanup(drm_sg_mem_t *entry); 1295 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1296 1297 /* sysctl support (drm_sysctl.h) */ 1298 extern int drm_sysctl_init(struct drm_device *dev); 1299 extern int drm_sysctl_cleanup(struct drm_device *dev); 1300 1301 /* ATI PCIGART support (ati_pcigart.c) */ 1302 int drm_ati_pcigart_init(struct drm_device *dev, 1303 struct drm_ati_pcigart_info *gart_info); 1304 int drm_ati_pcigart_cleanup(struct drm_device *dev, 1305 struct drm_ati_pcigart_info *gart_info); 1306 1307 /* Cache management (drm_memory.c) */ 1308 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1309 1310 /* Locking IOCTL support (drm_drv.c) */ 1311 int drm_lock(struct drm_device *dev, void *data, 1312 struct drm_file *file_priv); 1313 int drm_unlock(struct drm_device *dev, void *data, 1314 struct drm_file *file_priv); 1315 int drm_version(struct drm_device *dev, void *data, 1316 struct drm_file *file_priv); 1317 int drm_setversion(struct drm_device *dev, void *data, 1318 struct drm_file *file_priv); 1319 1320 /* Misc. IOCTL support (drm_ioctl.c) */ 1321 int drm_irq_by_busid(struct drm_device *dev, void *data, 1322 struct drm_file *file_priv); 1323 int drm_getunique(struct drm_device *dev, void *data, 1324 struct drm_file *file_priv); 1325 int drm_setunique(struct drm_device *dev, void *data, 1326 struct drm_file *file_priv); 1327 int drm_getmap(struct drm_device *dev, void *data, 1328 struct drm_file *file_priv); 1329 int drm_getclient(struct drm_device *dev, void *data, 1330 struct drm_file *file_priv); 1331 int drm_getstats(struct drm_device *dev, void *data, 1332 struct drm_file *file_priv); 1333 int drm_getcap(struct drm_device *dev, void *data, 1334 struct drm_file *file_priv); 1335 int drm_noop(struct drm_device *dev, void *data, 1336 struct drm_file *file_priv); 1337 1338 /* Context IOCTL support (drm_context.c) */ 1339 int drm_resctx(struct drm_device *dev, void *data, 1340 struct drm_file *file_priv); 1341 int drm_addctx(struct drm_device *dev, void *data, 1342 struct drm_file *file_priv); 1343 int drm_modctx(struct drm_device *dev, void *data, 1344 struct drm_file *file_priv); 1345 int drm_getctx(struct drm_device *dev, void *data, 1346 struct drm_file *file_priv); 1347 int drm_switchctx(struct drm_device *dev, void *data, 1348 struct drm_file *file_priv); 1349 int drm_newctx(struct drm_device *dev, void *data, 1350 struct drm_file *file_priv); 1351 int drm_rmctx(struct drm_device *dev, void *data, 1352 struct drm_file *file_priv); 1353 int drm_setsareactx(struct drm_device *dev, void *data, 1354 struct drm_file *file_priv); 1355 int drm_getsareactx(struct drm_device *dev, void *data, 1356 struct drm_file *file_priv); 1357 1358 /* Authentication IOCTL support (drm_auth.c) */ 1359 int drm_getmagic(struct drm_device *dev, void *data, 1360 struct drm_file *file_priv); 1361 int drm_authmagic(struct drm_device *dev, void *data, 1362 struct drm_file *file_priv); 1363 1364 /* Buffer management support (drm_bufs.c) */ 1365 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1366 struct drm_file *file_priv); 1367 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1368 struct drm_file *file_priv); 1369 int drm_addbufs(struct drm_device *dev, void *data, 1370 struct drm_file *file_priv); 1371 int drm_infobufs(struct drm_device *dev, void *data, 1372 struct drm_file *file_priv); 1373 int drm_markbufs(struct drm_device *dev, void *data, 1374 struct drm_file *file_priv); 1375 int drm_freebufs(struct drm_device *dev, void *data, 1376 struct drm_file *file_priv); 1377 int drm_mapbufs(struct drm_device *dev, void *data, 1378 struct drm_file *file_priv); 1379 1380 /* DMA support (drm_dma.c) */ 1381 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1382 1383 /* IRQ support (drm_irq.c) */ 1384 int drm_control(struct drm_device *dev, void *data, 1385 struct drm_file *file_priv); 1386 1387 /* AGP/GART support (drm_agpsupport.c) */ 1388 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1389 struct drm_file *file_priv); 1390 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1391 struct drm_file *file_priv); 1392 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1393 struct drm_file *file_priv); 1394 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1395 struct drm_file *file_priv); 1396 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1397 struct drm_file *file_priv); 1398 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1399 struct drm_file *file_priv); 1400 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1401 struct drm_file *file_priv); 1402 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1403 struct drm_file *file_priv); 1404 1405 /* Stub support (drm_stub.h) */ 1406 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1407 struct drm_file *file_priv); 1408 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1409 struct drm_file *file_priv); 1410 1411 /* Scatter Gather Support (drm_scatter.c) */ 1412 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1413 struct drm_file *file_priv); 1414 int drm_sg_free(struct drm_device *dev, void *data, 1415 struct drm_file *file_priv); 1416 1417 /* consistent PCI memory functions (drm_pci.c) */ 1418 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1419 size_t align, dma_addr_t maxaddr); 1420 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1421 1422 /* sysfs support (drm_sysfs.c) */ 1423 extern char *drm_get_connector_status_name(enum drm_connector_status status); 1424 1425 /* Graphics Execution Manager library functions (drm_gem.c) */ 1426 int drm_gem_init(struct drm_device *dev); 1427 void drm_gem_destroy(struct drm_device *dev); 1428 void drm_gem_object_release(struct drm_gem_object *obj); 1429 void drm_gem_object_free(struct kref *kref); 1430 1431 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1432 struct drm_file *file_priv); 1433 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1434 struct drm_file *file_priv); 1435 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1436 struct drm_file *file_priv); 1437 void drm_gem_object_handle_free(struct drm_gem_object *obj); 1438 1439 #include <drm/drm_global.h> 1440 1441 static inline void 1442 drm_gem_object_reference(struct drm_gem_object *obj) 1443 { 1444 kref_get(&obj->refcount); 1445 } 1446 1447 static inline void 1448 drm_gem_object_unreference(struct drm_gem_object *obj) 1449 { 1450 if (obj != NULL) 1451 kref_put(&obj->refcount, drm_gem_object_free); 1452 } 1453 1454 static inline void 1455 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1456 { 1457 if (obj != NULL) { 1458 struct drm_device *dev = obj->dev; 1459 DRM_LOCK(dev); 1460 kref_put(&obj->refcount, drm_gem_object_free); 1461 DRM_UNLOCK(dev); 1462 } 1463 } 1464 1465 int drm_gem_handle_create(struct drm_file *file_priv, 1466 struct drm_gem_object *obj, 1467 u32 *handlep); 1468 int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1469 1470 static inline void 1471 drm_gem_object_handle_reference(struct drm_gem_object *obj) 1472 { 1473 drm_gem_object_reference(obj); 1474 atomic_inc(&obj->handle_count); 1475 } 1476 1477 static inline void 1478 drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1479 { 1480 if (obj == NULL) 1481 return; 1482 1483 if (atomic_read(&obj->handle_count) == 0) 1484 return; 1485 /* 1486 * Must bump handle count first as this may be the last 1487 * ref, in which case the object would disappear before we 1488 * checked for a name 1489 */ 1490 if (atomic_dec_and_test(&obj->handle_count)) 1491 drm_gem_object_handle_free(obj); 1492 drm_gem_object_unreference(obj); 1493 } 1494 1495 static inline void 1496 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) 1497 { 1498 if (obj == NULL) 1499 return; 1500 1501 if (atomic_read(&obj->handle_count) == 0) 1502 return; 1503 1504 /* 1505 * Must bump handle count first as this may be the last 1506 * ref, in which case the object would disappear before we 1507 * checked for a name 1508 */ 1509 1510 if (atomic_dec_and_test(&obj->handle_count)) 1511 drm_gem_object_handle_free(obj); 1512 drm_gem_object_unreference_unlocked(obj); 1513 } 1514 1515 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, 1516 size_t size); 1517 int drm_gem_private_object_init(struct drm_device *dev, 1518 struct drm_gem_object *obj, size_t size); 1519 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1520 size_t size); 1521 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1522 struct drm_file *file_priv, uint32_t handle); 1523 1524 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1525 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1526 1527 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1528 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1529 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1530 vm_size_t size, struct vm_object **obj_res, int nprot); 1531 void drm_gem_pager_dtr(void *obj); 1532 1533 struct ttm_bo_device; 1534 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1535 vm_size_t size, struct vm_object **obj_res, int nprot); 1536 struct ttm_buffer_object; 1537 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1538 1539 void drm_device_lock_mtx(struct drm_device *dev); 1540 void drm_device_unlock_mtx(struct drm_device *dev); 1541 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1542 const char *msg, int timeout); 1543 void drm_device_assert_mtx_locked(struct drm_device *dev); 1544 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1545 1546 void drm_device_lock_struct(struct drm_device *dev); 1547 void drm_device_unlock_struct(struct drm_device *dev); 1548 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1549 const char *msg, int timeout); 1550 void drm_device_assert_struct_locked(struct drm_device *dev); 1551 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1552 1553 void drm_compat_locking_init(struct drm_device *dev); 1554 void drm_sleep_locking_init(struct drm_device *dev); 1555 1556 /* drm_modes.c */ 1557 bool drm_mode_parse_command_line_for_connector(const char *mode_option, 1558 struct drm_connector *connector, struct drm_cmdline_mode *mode); 1559 struct drm_display_mode *drm_mode_create_from_cmdline_mode( 1560 struct drm_device *dev, struct drm_cmdline_mode *cmd); 1561 1562 /* Inline replacements for drm_alloc and friends */ 1563 static __inline__ void * 1564 drm_alloc(size_t size, struct malloc_type *area) 1565 { 1566 return kmalloc(size, area, M_NOWAIT); 1567 } 1568 1569 static __inline__ void * 1570 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1571 { 1572 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO); 1573 } 1574 1575 static __inline__ void * 1576 drm_realloc(void *oldpt, size_t oldsize, size_t size, 1577 struct malloc_type *area) 1578 { 1579 void *res; 1580 res = krealloc(oldpt, size, area, M_NOWAIT); 1581 if (res == NULL && oldpt != NULL) 1582 kfree(oldpt,area); 1583 return res; 1584 } 1585 1586 static __inline__ void 1587 drm_free(void *pt, struct malloc_type *area) 1588 { 1589 if (pt != NULL) 1590 kfree(pt, area); 1591 } 1592 1593 /* Inline replacements for DRM_IOREMAP macros */ 1594 static __inline__ void 1595 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1596 { 1597 map->virtual = drm_ioremap_wc(dev, map); 1598 } 1599 static __inline__ void 1600 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1601 { 1602 map->virtual = drm_ioremap(dev, map); 1603 } 1604 static __inline__ void 1605 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1606 { 1607 if ( map->virtual && map->size ) 1608 drm_ioremapfree(map); 1609 } 1610 1611 static __inline__ struct drm_local_map * 1612 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1613 { 1614 struct drm_map_list *_entry; 1615 1616 list_for_each_entry(_entry, &dev->maplist, head) { 1617 if (offset == (unsigned long)_entry->map->handle) 1618 return _entry->map; 1619 } 1620 return NULL; 1621 } 1622 1623 static __inline__ void drm_core_dropmap(struct drm_map *map) 1624 { 1625 } 1626 1627 /* FreeBSD compatibility macros */ 1628 #define PROC_LOCK(p) 1629 #define PROC_UNLOCK(p) 1630 1631 #define VM_OBJECT_RLOCK(object) VM_OBJECT_LOCK(object) 1632 #define VM_OBJECT_RUNLOCK(object) VM_OBJECT_UNLOCK(object) 1633 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1634 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1635 1636 #define CTR2(one,two,three,four) 1637 1638 #define DRM_PCIE_SPEED_25 1 1639 #define DRM_PCIE_SPEED_50 2 1640 #define DRM_PCIE_SPEED_80 4 1641 1642 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1643 1644 #define drm_can_sleep() (DRM_HZ & 1) 1645 1646 #endif /* __KERNEL__ */ 1647 #endif /* _DRM_P_H_ */ 1648