1 /** 2 * \file drmP.h 3 * Private header for Direct Rendering Manager 4 * 5 * \author Rickard E. (Rik) Faith <faith@valinux.com> 6 * \author Gareth Hughes <gareth@valinux.com> 7 */ 8 9 /* 10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 12 * Copyright (c) 2009-2010, Code Aurora Forum. 13 * All rights reserved. 14 * 15 * Permission is hereby granted, free of charge, to any person obtaining a 16 * copy of this software and associated documentation files (the "Software"), 17 * to deal in the Software without restriction, including without limitation 18 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 19 * and/or sell copies of the Software, and to permit persons to whom the 20 * Software is furnished to do so, subject to the following conditions: 21 * 22 * The above copyright notice and this permission notice (including the next 23 * paragraph) shall be included in all copies or substantial portions of the 24 * Software. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 29 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 30 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 31 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 32 * OTHER DEALINGS IN THE SOFTWARE. 33 * 34 * $FreeBSD: head/sys/dev/drm2/drmP.h 255045 2013-08-29 23:09:34Z jkim $ 35 */ 36 37 #ifndef _DRM_P_H_ 38 #define _DRM_P_H_ 39 40 #if defined(_KERNEL) || defined(__KERNEL__) 41 42 #include <sys/param.h> 43 #include <sys/queue.h> 44 #include <sys/malloc.h> 45 #include <sys/kernel.h> 46 #include <sys/ktr.h> 47 #include <sys/module.h> 48 #include <sys/systm.h> 49 #include <sys/device.h> 50 #include <sys/sglist.h> 51 #include <sys/stat.h> 52 #include <sys/priv.h> 53 #include <sys/proc.h> 54 #include <sys/lock.h> 55 #include <sys/spinlock.h> 56 #include <sys/spinlock2.h> 57 #include <sys/fcntl.h> 58 #include <sys/uio.h> 59 #include <sys/filio.h> 60 #include <sys/sysctl.h> 61 #include <sys/bus.h> 62 #include <sys/queue.h> 63 #include <sys/signalvar.h> 64 #include <sys/poll.h> 65 #include <sys/sbuf.h> 66 #include <sys/taskqueue.h> 67 #include <sys/tree.h> 68 #include <vm/vm.h> 69 #include <vm/pmap.h> 70 #include <vm/vm_extern.h> 71 #include <vm/vm_kern.h> 72 #include <vm/vm_map.h> 73 #include <vm/vm_object.h> 74 #include <vm/vm_page2.h> 75 #include <vm/vm_pager.h> 76 #include <vm/vm_param.h> 77 #include <machine/param.h> 78 #include <machine/pmap.h> 79 #if defined(__i386__) || defined(__amd64__) 80 #include <machine/specialreg.h> 81 #endif 82 #include <machine/sysarch.h> 83 #include <sys/endian.h> 84 #include <sys/mman.h> 85 #include <sys/rman.h> 86 #include <sys/memrange.h> 87 #include <dev/agp/agpvar.h> 88 #include <sys/agpio.h> 89 #include <sys/mutex.h> 90 #include <bus/pci/pcivar.h> 91 #include <bus/pci/pcireg.h> 92 93 #include <uapi_drm/drm.h> 94 #include <uapi_drm/drm_sarea.h> 95 96 #include <linux/atomic.h> 97 #include <linux/idr.h> 98 #include <linux/kernel.h> 99 #include <linux/kref.h> 100 #include <linux/list.h> 101 #include <linux/types.h> 102 103 #include <asm/uaccess.h> 104 105 struct drm_file; 106 struct drm_device; 107 108 #include "drm_os_freebsd.h" 109 #include "drm_hashtab.h" 110 #include "drm_mm.h" 111 112 #define DRM_UT_CORE 0x01 113 #define DRM_UT_DRIVER 0x02 114 #define DRM_UT_KMS 0x04 115 #define DRM_UT_PRIME 0x08 116 117 #ifdef DRM_DEBUG 118 #undef DRM_DEBUG 119 #define DRM_DEBUG_DEFAULT_ON 1 120 #endif /* DRM_DEBUG */ 121 122 #define DRM_DEBUGBITS_DEBUG 0x1 123 #define DRM_DEBUGBITS_KMS 0x2 124 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 125 126 #undef DRM_LINUX 127 #define DRM_LINUX 0 128 129 /***********************************************************************/ 130 /** \name DRM template customization defaults */ 131 /*@{*/ 132 133 /* driver capabilities and requirements mask */ 134 #define DRIVER_USE_AGP 0x1 135 #define DRIVER_REQUIRE_AGP 0x2 136 #define DRIVER_USE_MTRR 0x4 137 #define DRIVER_PCI_DMA 0x8 138 #define DRIVER_SG 0x10 139 #define DRIVER_HAVE_DMA 0x20 140 #define DRIVER_HAVE_IRQ 0x40 141 #define DRIVER_IRQ_SHARED 0x80 142 #define DRIVER_IRQ_VBL 0x100 143 #define DRIVER_DMA_QUEUE 0x200 144 #define DRIVER_FB_DMA 0x400 145 #define DRIVER_IRQ_VBL2 0x800 146 #define DRIVER_GEM 0x1000 147 #define DRIVER_MODESET 0x2000 148 #define DRIVER_PRIME 0x4000 149 #define DRIVER_LOCKLESS_IRQ 0x8000 150 151 152 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 153 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 154 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 155 156 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 157 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 158 #define DRM_GEM_MAX_IDX 0x3fffff 159 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 160 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 161 #define DRM_GEM_MAPPING_MAPOFF(o) \ 162 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 163 164 MALLOC_DECLARE(DRM_MEM_DMA); 165 MALLOC_DECLARE(DRM_MEM_SAREA); 166 MALLOC_DECLARE(DRM_MEM_DRIVER); 167 MALLOC_DECLARE(DRM_MEM_MAGIC); 168 MALLOC_DECLARE(DRM_MEM_MAPS); 169 MALLOC_DECLARE(DRM_MEM_BUFS); 170 MALLOC_DECLARE(DRM_MEM_SEGS); 171 MALLOC_DECLARE(DRM_MEM_PAGES); 172 MALLOC_DECLARE(DRM_MEM_FILES); 173 MALLOC_DECLARE(DRM_MEM_BUFLISTS); 174 MALLOC_DECLARE(DRM_MEM_AGPLISTS); 175 MALLOC_DECLARE(DRM_MEM_CTXBITMAP); 176 MALLOC_DECLARE(DRM_MEM_SGLISTS); 177 MALLOC_DECLARE(DRM_MEM_DRAWABLE); 178 MALLOC_DECLARE(DRM_MEM_MM); 179 MALLOC_DECLARE(DRM_MEM_HASHTAB); 180 MALLOC_DECLARE(DRM_MEM_KMS); 181 182 SYSCTL_DECL(_hw_drm); 183 184 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 185 186 /***********************************************************************/ 187 /** \name Internal types and structures */ 188 /*@{*/ 189 190 #define DRM_ARRAY_SIZE(x) NELEM(x) 191 #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 192 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 193 194 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 195 196 #define __OS_HAS_AGP 1 197 198 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 199 #define DRM_DEV_UID 0 200 #define DRM_DEV_GID 0 201 202 #define wait_queue_head_t atomic_t 203 #define DRM_WAKEUP(w) wakeup((void *)w) 204 #define DRM_WAKEUP_INT(w) wakeup(w) 205 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 206 207 #define DRM_CURPROC curthread 208 #define DRM_STRUCTPROC struct thread 209 #define DRM_CURRENTPID curthread->td_proc->p_pid 210 #define DRM_LOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_EXCLUSIVE) 211 #define DRM_UNLOCK(dev) lockmgr(&(dev)->dev_struct_lock, LK_RELEASE) 212 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 213 (lksleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout))) 214 #if defined(INVARIANTS) 215 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) != 0); 216 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->dev_struct_lock, curthread) == 0); 217 #else 218 #define DRM_LOCK_ASSERT(d) 219 #define DRM_UNLOCK_ASSERT(d) 220 #endif 221 222 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 223 224 #define DRM_IRQ_ARGS void *arg 225 typedef void irqreturn_t; 226 #define IRQ_HANDLED /* nothing */ 227 #define IRQ_NONE /* nothing */ 228 229 enum { 230 DRM_IS_NOT_AGP, 231 DRM_IS_AGP, 232 DRM_MIGHT_BE_AGP 233 }; 234 #define DRM_AGP_MEM struct agp_memory_info 235 236 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 237 238 #define PAGE_ALIGN(addr) round_page(addr) 239 /* DRM_SUSER returns true if the user is superuser */ 240 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 241 #define DRM_AGP_FIND_DEVICE() agp_find_device() 242 #define DRM_MTRR_WC MDF_WRITECOMBINE 243 #define jiffies ticks 244 #define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz) 245 #define msecs_to_jiffies(x) (((int64_t)(x)) * hz / 1000) 246 #define time_after(a,b) ((long)(b) - (long)(a) < 0) 247 #define time_after_eq(a,b) ((long)(b) - (long)(a) <= 0) 248 249 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 250 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 251 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 252 */ 253 #define DRM_READMEMORYBARRIER() cpu_lfence() 254 #define DRM_WRITEMEMORYBARRIER() cpu_sfence() 255 #define DRM_MEMORYBARRIER() cpu_mfence() 256 257 #define DRM_READ8(map, offset) \ 258 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 259 (vm_offset_t)(offset)) 260 #define DRM_READ16(map, offset) \ 261 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 262 (vm_offset_t)(offset))) 263 #define DRM_READ32(map, offset) \ 264 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 265 (vm_offset_t)(offset))) 266 #define DRM_READ64(map, offset) \ 267 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 268 (vm_offset_t)(offset))) 269 #define DRM_WRITE8(map, offset, val) \ 270 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \ 271 (vm_offset_t)(offset)) = val 272 #define DRM_WRITE16(map, offset, val) \ 273 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \ 274 (vm_offset_t)(offset)) = htole16(val) 275 #define DRM_WRITE32(map, offset, val) \ 276 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \ 277 (vm_offset_t)(offset)) = htole32(val) 278 #define DRM_WRITE64(map, offset, val) \ 279 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \ 280 (vm_offset_t)(offset)) = htole64(val) 281 282 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 283 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 284 285 #define DRM_COPY_TO_USER(user, kern, size) \ 286 copyout(kern, user, size) 287 #define DRM_COPY_FROM_USER(kern, user, size) \ 288 copyin(user, kern, size) 289 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 290 copyin(arg2, arg1, arg3) 291 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 292 copyout(arg2, arg1, arg3) 293 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 294 ((val) = fuword32(uaddr), 0) 295 296 #define drm_can_sleep() (DRM_HZ & 1) 297 298 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 299 (_map) = (_dev)->context_sareas[_ctx]; \ 300 } while(0) 301 302 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 303 do { \ 304 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 305 dev->lock.file_priv != file_priv) { \ 306 DRM_ERROR("%s called without lock held\n", \ 307 __FUNCTION__); \ 308 return EINVAL; \ 309 } \ 310 } while (0) 311 312 /* Returns -errno to shared code */ 313 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 314 for ( ret = 0 ; !ret && !(condition) ; ) { \ 315 DRM_UNLOCK(dev); \ 316 lwkt_serialize_enter(&dev->irq_lock); \ 317 if (!(condition)) { \ 318 tsleep_interlock(&(queue), PCATCH); \ 319 lwkt_serialize_exit(&dev->irq_lock); \ 320 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 321 "drmwtq", (timeout)); \ 322 } else { \ 323 lwkt_serialize_exit(&dev->irq_lock); \ 324 } \ 325 DRM_LOCK(dev); \ 326 } 327 328 __inline static void 329 vm_page_unhold_pages(vm_page_t *ma, int count) 330 { 331 int i; 332 333 for (i = 0; i < count; i++) 334 vm_page_unhold(ma[i]); 335 } 336 337 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 338 vm_memattr_t memattr); 339 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 340 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 341 342 #define DRM_ERROR(fmt, ...) \ 343 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 344 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 345 346 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 347 348 #define DRM_DEBUG(fmt, ...) do { \ 349 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 350 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 351 __func__ , ##__VA_ARGS__); \ 352 } while (0) 353 354 #define DRM_DEBUG_KMS(fmt, ...) do { \ 355 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 356 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 357 __func__ , ##__VA_ARGS__); \ 358 } while (0) 359 360 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 361 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 362 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 363 __func__ , ##__VA_ARGS__); \ 364 } while (0) 365 366 #define dev_err(dev, fmt, ...) \ 367 device_printf((dev), "error: " fmt, ## __VA_ARGS__) 368 #define dev_warn(dev, fmt, ...) \ 369 device_printf((dev), "warning: " fmt, ## __VA_ARGS__) 370 #define dev_info(dev, fmt, ...) \ 371 device_printf((dev), "info: " fmt, ## __VA_ARGS__) 372 #define dev_dbg(dev, fmt, ...) do { \ 373 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 374 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 375 } \ 376 } while (0) 377 378 typedef struct drm_pci_id_list 379 { 380 int vendor; 381 int device; 382 long driver_private; 383 char *name; 384 } drm_pci_id_list_t; 385 386 struct drm_msi_blacklist_entry 387 { 388 int vendor; 389 int device; 390 }; 391 392 #define DRM_IOCTL_NR(n) ((n) & 0xff) 393 394 #define DRM_AUTH 0x1 395 #define DRM_MASTER 0x2 396 #define DRM_ROOT_ONLY 0x4 397 #define DRM_CONTROL_ALLOW 0x8 398 #define DRM_UNLOCKED 0x10 399 400 typedef struct drm_ioctl_desc { 401 unsigned long cmd; 402 int (*func)(struct drm_device *dev, void *data, 403 struct drm_file *file_priv); 404 int flags; 405 unsigned int cmd_drv; 406 } drm_ioctl_desc_t; 407 408 /** 409 * Creates a driver or general drm_ioctl_desc array entry for the given 410 * ioctl, for use by drm_ioctl(). 411 */ 412 #define DRM_IOCTL_DEF(ioctl, func, flags) \ 413 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 414 415 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 416 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 417 418 typedef struct drm_magic_entry { 419 drm_magic_t magic; 420 struct drm_file *priv; 421 struct drm_magic_entry *next; 422 } drm_magic_entry_t; 423 424 typedef struct drm_magic_head { 425 struct drm_magic_entry *head; 426 struct drm_magic_entry *tail; 427 } drm_magic_head_t; 428 429 typedef struct drm_buf { 430 int idx; /**< Index into master buflist */ 431 int total; /**< Buffer size */ 432 int order; /**< log-base-2(total) */ 433 int used; /**< Amount of buffer in use (for DMA) */ 434 unsigned long offset; /**< Byte offset (used internally) */ 435 void *address; /**< Address of buffer */ 436 unsigned long bus_address; /**< Bus address of buffer */ 437 struct drm_buf *next; /**< Kernel-only: used for free list */ 438 __volatile__ int waiting; /**< On kernel DMA queue */ 439 __volatile__ int pending; /**< On hardware DMA queue */ 440 struct drm_file *file_priv; /**< Private of holding file descr */ 441 int context; /**< Kernel queue for this buffer */ 442 int while_locked; /**< Dispatch this buffer while locked */ 443 enum { 444 DRM_LIST_NONE = 0, 445 DRM_LIST_FREE = 1, 446 DRM_LIST_WAIT = 2, 447 DRM_LIST_PEND = 3, 448 DRM_LIST_PRIO = 4, 449 DRM_LIST_RECLAIM = 5 450 } list; /**< Which list we're on */ 451 452 int dev_priv_size; /**< Size of buffer private storage */ 453 void *dev_private; /**< Per-buffer private storage */ 454 } drm_buf_t; 455 456 typedef struct drm_freelist { 457 int initialized; /* Freelist in use */ 458 atomic_t count; /* Number of free buffers */ 459 drm_buf_t *next; /* End pointer */ 460 461 int low_mark; /* Low water mark */ 462 int high_mark; /* High water mark */ 463 } drm_freelist_t; 464 465 typedef struct drm_dma_handle { 466 void *vaddr; 467 bus_addr_t busaddr; 468 bus_dma_tag_t tag; 469 bus_dmamap_t map; 470 } drm_dma_handle_t; 471 472 typedef struct drm_buf_entry { 473 int buf_size; 474 int buf_count; 475 drm_buf_t *buflist; 476 int seg_count; 477 drm_dma_handle_t **seglist; 478 int page_order; 479 480 drm_freelist_t freelist; 481 } drm_buf_entry_t; 482 483 /* Event queued up for userspace to read */ 484 struct drm_pending_event { 485 struct drm_event *event; 486 struct list_head link; 487 struct drm_file *file_priv; 488 pid_t pid; /* pid of requester, no guarantee it's valid by the time 489 we deliver the event, for tracing only */ 490 void (*destroy)(struct drm_pending_event *event); 491 }; 492 493 /* initial implementaton using a linked list - todo hashtab */ 494 struct drm_prime_file_private { 495 struct list_head head; 496 #ifdef DUMBBELL_WIP 497 struct mutex lock; 498 #endif /* DUMBBELL_WIP */ 499 }; 500 501 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 502 struct drm_file { 503 TAILQ_ENTRY(drm_file) link; 504 struct drm_device *dev; 505 int authenticated; 506 int master; 507 pid_t pid; 508 uid_t uid; 509 drm_magic_t magic; 510 unsigned long ioctl_count; 511 512 /** Mapping of mm object handles to object pointers. */ 513 struct idr object_idr; 514 /** Lock for synchronization of access to object_idr. */ 515 struct lock table_lock; 516 517 void *driver_priv; 518 519 int is_master; 520 struct drm_master *masterp; 521 522 struct list_head fbs; 523 524 struct list_head event_list; 525 int event_space; 526 527 struct drm_prime_file_private prime; 528 }; 529 530 typedef struct drm_lock_data { 531 struct drm_hw_lock *hw_lock; /* Hardware lock */ 532 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/ 533 int lock_queue; /* Queue of blocked processes */ 534 unsigned long lock_time; /* Time of last lock in jiffies */ 535 } drm_lock_data_t; 536 537 /* This structure, in the struct drm_device, is always initialized while the 538 * device 539 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 540 * when set marks that no further bufs may be allocated until device teardown 541 * occurs (when the last open of the device has closed). The high/low 542 * watermarks of bufs are only touched by the X Server, and thus not 543 * concurrently accessed, so no locking is needed. 544 */ 545 typedef struct drm_device_dma { 546 547 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 548 int buf_count; /**< total number of buffers */ 549 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 550 int seg_count; 551 int page_count; /**< number of pages */ 552 unsigned long *pagelist; /**< page list */ 553 unsigned long byte_count; 554 enum { 555 _DRM_DMA_USE_AGP = 0x01, 556 _DRM_DMA_USE_SG = 0x02, 557 _DRM_DMA_USE_FB = 0x04, 558 _DRM_DMA_USE_PCI_RO = 0x08 559 } flags; 560 561 } drm_device_dma_t; 562 563 typedef struct drm_agp_mem { 564 void *handle; 565 unsigned long bound; /* address */ 566 int pages; 567 struct drm_agp_mem *prev; 568 struct drm_agp_mem *next; 569 } drm_agp_mem_t; 570 571 typedef struct drm_agp_head { 572 device_t agpdev; 573 struct agp_info agp_info; 574 const char *chipset; 575 drm_agp_mem_t *memory; 576 unsigned long mode; 577 int enabled; 578 int acquired; 579 unsigned long base; 580 int agp_mtrr; 581 int cant_use_aperture; 582 unsigned long page_mask; 583 } drm_agp_head_t; 584 585 typedef struct drm_sg_mem { 586 vm_offset_t vaddr; 587 vm_paddr_t *busaddr; 588 vm_pindex_t pages; 589 } drm_sg_mem_t; 590 591 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24) 592 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS) 593 594 /** 595 * Kernel side of a mapping 596 */ 597 struct drm_local_map { 598 unsigned long offset; /* Physical address (0 for SAREA) */ 599 unsigned long size; /* Physical size (bytes) */ 600 enum drm_map_type type; /* Type of memory mapped */ 601 enum drm_map_flags flags; /* Flags */ 602 void *handle; /* User-space: "Handle" to pass to mmap */ 603 /* Kernel-space: kernel-virtual address */ 604 int mtrr; /* Boolean: MTRR used */ 605 /* Private data */ 606 int rid; /* PCI resource ID for bus_space */ 607 void *virtual; /* Kernel-space: kernel-virtual address */ 608 struct resource *bsr; 609 bus_space_tag_t bst; 610 bus_space_handle_t bsh; 611 drm_dma_handle_t *dmah; 612 TAILQ_ENTRY(drm_local_map) link; 613 }; 614 615 typedef struct drm_local_map drm_local_map_t; 616 617 /** 618 * Mappings list 619 */ 620 struct drm_map_list { 621 struct list_head head; /**< list head */ 622 struct drm_hash_item hash; 623 struct drm_local_map *map; /**< mapping */ 624 uint64_t user_token; 625 struct drm_master *master; 626 struct drm_mm_node *file_offset_node; /**< fake offset */ 627 }; 628 629 struct drm_vblank_info { 630 wait_queue_head_t queue; /* vblank wait queue */ 631 atomic_t count; /* number of VBLANK interrupts */ 632 /* (driver must alloc the right number of counters) */ 633 atomic_t refcount; /* number of users of vblank interrupts */ 634 u32 last; /* protected by dev->vbl_lock, used */ 635 /* for wraparound handling */ 636 int enabled; /* so we don't call enable more than */ 637 /* once per disable */ 638 int inmodeset; /* Display driver is setting mode */ 639 }; 640 641 /* location of GART table */ 642 #define DRM_ATI_GART_MAIN 1 643 #define DRM_ATI_GART_FB 2 644 645 #define DRM_ATI_GART_PCI 1 646 #define DRM_ATI_GART_PCIE 2 647 #define DRM_ATI_GART_IGP 3 648 649 struct drm_ati_pcigart_info { 650 int gart_table_location; 651 int gart_reg_if; 652 void *addr; 653 dma_addr_t bus_addr; 654 dma_addr_t table_mask; 655 dma_addr_t member_mask; 656 struct drm_dma_handle *table_handle; 657 drm_local_map_t mapping; 658 int table_size; 659 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 660 }; 661 662 typedef vm_paddr_t resource_size_t; 663 664 /** 665 * GEM specific mm private for tracking GEM objects 666 */ 667 struct drm_gem_mm { 668 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 669 struct unrhdr *idxunr; 670 }; 671 672 struct drm_gem_object { 673 /** Reference count of this object */ 674 struct kref refcount; 675 676 /** Handle count of this object. Each handle also holds a reference */ 677 atomic_t handle_count; /* number of handles on this object */ 678 679 /** Related drm device */ 680 struct drm_device *dev; 681 682 /** File representing the shmem storage: filp in Linux parlance */ 683 vm_object_t vm_obj; 684 685 bool on_map; 686 struct drm_hash_item map_list; 687 688 /** 689 * Size of the object, in bytes. Immutable over the object's 690 * lifetime. 691 */ 692 size_t size; 693 694 /** 695 * Global name for this object, starts at 1. 0 means unnamed. 696 * Access is covered by the object_name_lock in the related drm_device 697 */ 698 int name; 699 700 /** 701 * Memory domains. These monitor which caches contain read/write data 702 * related to the object. When transitioning from one set of domains 703 * to another, the driver is called to ensure that caches are suitably 704 * flushed and invalidated 705 */ 706 uint32_t read_domains; 707 uint32_t write_domain; 708 709 /** 710 * While validating an exec operation, the 711 * new read/write domain values are computed here. 712 * They will be transferred to the above values 713 * at the point that any cache flushing occurs 714 */ 715 uint32_t pending_read_domains; 716 uint32_t pending_write_domain; 717 718 void *driver_private; 719 720 #ifdef DUMBBELL_WIP 721 /* dma buf exported from this GEM object */ 722 struct dma_buf *export_dma_buf; 723 724 /* dma buf attachment backing this object */ 725 struct dma_buf_attachment *import_attach; 726 #endif /* DUMBBELL_WIP */ 727 }; 728 729 #include "drm_crtc.h" 730 731 /* per-master structure */ 732 struct drm_master { 733 734 struct kref refcount; /* refcount for this master */ 735 736 struct list_head head; /**< each minor contains a list of masters */ 737 struct drm_minor *minor; /**< link back to minor we are a master for */ 738 739 char *unique; /**< Unique identifier: e.g., busid */ 740 int unique_len; /**< Length of unique field */ 741 int unique_size; /**< amount allocated */ 742 743 int blocked; /**< Blocked due to VC switch? */ 744 745 /** \name Authentication */ 746 /*@{ */ 747 struct drm_open_hash magiclist; 748 struct list_head magicfree; 749 /*@} */ 750 751 struct drm_lock_data lock; /**< Information on hardware lock */ 752 753 void *driver_priv; /**< Private structure for driver to use */ 754 }; 755 756 /* Size of ringbuffer for vblank timestamps. Just double-buffer 757 * in initial implementation. 758 */ 759 #define DRM_VBLANKTIME_RBSIZE 2 760 761 /* Flags and return codes for get_vblank_timestamp() driver function. */ 762 #define DRM_CALLED_FROM_VBLIRQ 1 763 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 764 #define DRM_VBLANKTIME_INVBL (1 << 1) 765 766 /* get_scanout_position() return flags */ 767 #define DRM_SCANOUTPOS_VALID (1 << 0) 768 #define DRM_SCANOUTPOS_INVBL (1 << 1) 769 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 770 771 #ifndef DMA_BIT_MASK 772 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 773 #endif 774 775 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 776 777 struct drm_driver { 778 int (*load)(struct drm_device *, unsigned long flags); 779 int (*use_msi)(struct drm_device *, unsigned long flags); 780 int (*firstopen)(struct drm_device *); 781 int (*open)(struct drm_device *, struct drm_file *); 782 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 783 void (*postclose)(struct drm_device *, struct drm_file *); 784 void (*lastclose)(struct drm_device *); 785 int (*unload)(struct drm_device *); 786 void (*reclaim_buffers_locked)(struct drm_device *, 787 struct drm_file *file_priv); 788 int (*dma_ioctl)(struct drm_device *dev, void *data, 789 struct drm_file *file_priv); 790 void (*dma_ready)(struct drm_device *); 791 int (*dma_quiescent)(struct drm_device *); 792 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 793 enum drm_lock_flags flags); 794 int (*dma_flush_unblock)(struct drm_device *, int context, 795 enum drm_lock_flags flags); 796 int (*context_ctor)(struct drm_device *dev, int context); 797 int (*context_dtor)(struct drm_device *dev, int context); 798 int (*kernel_context_switch)(struct drm_device *dev, int old, 799 int new); 800 int (*kernel_context_switch_unlock)(struct drm_device *dev); 801 void (*irq_preinstall)(struct drm_device *dev); 802 int (*irq_postinstall)(struct drm_device *dev); 803 void (*irq_uninstall)(struct drm_device *dev); 804 void (*irq_handler)(DRM_IRQ_ARGS); 805 806 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 807 int (*enable_vblank)(struct drm_device *dev, int crtc); 808 void (*disable_vblank)(struct drm_device *dev, int crtc); 809 int (*get_scanout_position)(struct drm_device *dev, int crtc, 810 int *vpos, int *hpos); 811 812 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 813 int *max_error, struct timeval *vblank_time, 814 unsigned flags); 815 816 int (*gem_init_object)(struct drm_gem_object *obj); 817 void (*gem_free_object)(struct drm_gem_object *obj); 818 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 819 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 820 821 struct cdev_pager_ops *gem_pager_ops; 822 823 int (*dumb_create)(struct drm_file *file_priv, 824 struct drm_device *dev, struct drm_mode_create_dumb *args); 825 int (*dumb_map_offset)(struct drm_file *file_priv, 826 struct drm_device *dev, uint32_t handle, uint64_t *offset); 827 int (*dumb_destroy)(struct drm_file *file_priv, 828 struct drm_device *dev, uint32_t handle); 829 830 int (*sysctl_init)(struct drm_device *dev, 831 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 832 void (*sysctl_cleanup)(struct drm_device *dev); 833 834 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 835 836 /** 837 * Called by \c drm_device_is_agp. Typically used to determine if a 838 * card is really attached to AGP or not. 839 * 840 * \param dev DRM device handle 841 * 842 * \returns 843 * One of three values is returned depending on whether or not the 844 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 845 * (return of 1), or may or may not be AGP (return of 2). 846 */ 847 int (*device_is_agp) (struct drm_device * dev); 848 849 drm_ioctl_desc_t *ioctls; 850 #ifdef COMPAT_FREEBSD32 851 drm_ioctl_desc_t *compat_ioctls; 852 int *compat_ioctls_nr; 853 #endif 854 int max_ioctl; 855 856 int buf_priv_size; 857 858 int major; 859 int minor; 860 int patchlevel; 861 const char *name; /* Simple driver name */ 862 const char *desc; /* Longer driver name */ 863 const char *date; /* Date of last major changes. */ 864 865 u32 driver_features; 866 }; 867 868 /** 869 * DRM minor structure. This structure represents a drm minor number. 870 */ 871 struct drm_minor { 872 int index; /**< Minor device number */ 873 int type; /**< Control or render */ 874 device_t kdev; /**< OS device */ 875 struct drm_device *dev; 876 877 struct drm_master *master; /* currently active master for this node */ 878 struct list_head master_list; 879 struct drm_mode_group mode_group; 880 }; 881 882 /* mode specified on the command line */ 883 struct drm_cmdline_mode { 884 bool specified; 885 bool refresh_specified; 886 bool bpp_specified; 887 int xres, yres; 888 int bpp; 889 int refresh; 890 bool rb; 891 bool interlace; 892 bool cvt; 893 bool margins; 894 enum drm_connector_force force; 895 }; 896 897 898 struct drm_pending_vblank_event { 899 struct drm_pending_event base; 900 int pipe; 901 struct drm_event_vblank event; 902 }; 903 904 /* Length for the array of resource pointers for drm_get_resource_*. */ 905 #define DRM_MAX_PCI_RESOURCE 6 906 907 /** 908 * DRM device structure. This structure represent a complete card that 909 * may contain multiple heads. 910 */ 911 struct drm_device { 912 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 913 914 uint16_t pci_device; /* PCI device id */ 915 uint16_t pci_vendor; /* PCI vendor id */ 916 uint16_t pci_subdevice; /* PCI subsystem device id */ 917 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 918 919 char *unique; /* Unique identifier: e.g., busid */ 920 int unique_len; /* Length of unique field */ 921 struct cdev *devnode; /* Device number for mknod */ 922 int if_version; /* Highest interface version set */ 923 924 int flags; /* Flags to open(2) */ 925 926 /* Locks */ 927 struct spinlock dma_lock; /* protects dev->dma */ 928 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 929 struct lock dev_lock; /* protects everything else */ 930 struct lock dev_struct_lock; 931 932 /* Usage Counters */ 933 int open_count; /* Outstanding files open */ 934 int buf_use; /* Buffers in use -- cannot alloc */ 935 936 /* Performance counters */ 937 unsigned long counters; 938 enum drm_stat_type types[15]; 939 atomic_t counts[15]; 940 941 /* Authentication */ 942 drm_file_list_t files; 943 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 944 945 /** \name Memory management */ 946 /*@{ */ 947 struct list_head maplist; /**< Linked list of regions */ 948 struct unrhdr *map_unrhdr; 949 950 drm_local_map_t **context_sareas; 951 int max_context; 952 953 drm_lock_data_t lock; /* Information on hardware lock */ 954 955 /* DMA queues (contexts) */ 956 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 957 958 /* Context support */ 959 int irq; /* Interrupt used by board */ 960 int msi_enabled; /* MSI enabled */ 961 int irqrid; /* Interrupt used by board */ 962 struct resource *irqr; /* Resource for interrupt used by board */ 963 void *irqh; /* Handle from bus_setup_intr */ 964 965 /* Storage of resource pointers for drm_get_resource_* */ 966 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 967 int pcirid[DRM_MAX_PCI_RESOURCE]; 968 969 int pci_domain; 970 int pci_bus; 971 int pci_slot; 972 int pci_func; 973 974 /** \name Context support */ 975 /*@{ */ 976 int irq_enabled; /**< True if irq handler is enabled */ 977 __volatile__ long context_flag; /**< Context swapping flag */ 978 int last_context; /**< Last current context */ 979 /*@} */ 980 981 int num_crtcs; 982 983 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 984 985 /* Sysctl support */ 986 struct drm_sysctl_info *sysctl; 987 int sysctl_node_idx; 988 989 drm_agp_head_t *agp; 990 991 struct device *dev; /**< Device structure */ 992 993 drm_sg_mem_t *sg; /* Scatter gather memory */ 994 unsigned long *ctx_bitmap; 995 void *dev_private; 996 997 void *drm_ttm_bdev; 998 999 int vblank_disable_allowed; 1000 1001 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 1002 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 1003 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 1004 struct lock vbl_lock; 1005 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 1006 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 1007 /* for wraparound handling */ 1008 int *vblank_enabled; /* so we don't call enable more than 1009 once per disable */ 1010 int *vblank_inmodeset; /* Display driver is setting mode */ 1011 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 1012 struct callout vblank_disable_callout; 1013 1014 u32 max_vblank_count; /**< size of vblank counter register */ 1015 1016 struct list_head vblank_event_list; 1017 struct lock event_lock; 1018 1019 struct drm_driver *driver; 1020 struct drm_local_map *agp_buffer_map; 1021 unsigned int agp_buffer_token; 1022 struct drm_minor *control; /**< Control node for card */ 1023 struct drm_minor *primary; /**< render type primary screen head */ 1024 1025 struct drm_mode_config mode_config; /**< Current mode config */ 1026 1027 /** \name GEM information */ 1028 /*@{ */ 1029 struct lock object_name_lock; 1030 struct idr object_name_idr; 1031 /*@} */ 1032 void *mm_private; 1033 1034 void *sysctl_private; 1035 char busid_str[128]; 1036 int modesetting; 1037 1038 int switch_power_state; 1039 }; 1040 1041 #define DRM_SWITCH_POWER_ON 0 1042 #define DRM_SWITCH_POWER_OFF 1 1043 #define DRM_SWITCH_POWER_CHANGING 2 1044 1045 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1046 int feature) 1047 { 1048 return ((dev->driver->driver_features & feature) ? 1 : 0); 1049 } 1050 1051 #if __OS_HAS_AGP 1052 static inline int drm_core_has_AGP(struct drm_device *dev) 1053 { 1054 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1055 } 1056 #else 1057 #define drm_core_has_AGP(dev) (0) 1058 #endif 1059 1060 enum dmi_field { 1061 DMI_NONE, 1062 DMI_BIOS_VENDOR, 1063 DMI_BIOS_VERSION, 1064 DMI_BIOS_DATE, 1065 DMI_SYS_VENDOR, 1066 DMI_PRODUCT_NAME, 1067 DMI_PRODUCT_VERSION, 1068 DMI_PRODUCT_SERIAL, 1069 DMI_PRODUCT_UUID, 1070 DMI_BOARD_VENDOR, 1071 DMI_BOARD_NAME, 1072 DMI_BOARD_VERSION, 1073 DMI_BOARD_SERIAL, 1074 DMI_BOARD_ASSET_TAG, 1075 DMI_CHASSIS_VENDOR, 1076 DMI_CHASSIS_TYPE, 1077 DMI_CHASSIS_VERSION, 1078 DMI_CHASSIS_SERIAL, 1079 DMI_CHASSIS_ASSET_TAG, 1080 DMI_STRING_MAX, 1081 }; 1082 1083 struct dmi_strmatch { 1084 unsigned char slot; 1085 char substr[79]; 1086 }; 1087 1088 struct dmi_system_id { 1089 int (*callback)(const struct dmi_system_id *); 1090 const char *ident; 1091 struct dmi_strmatch matches[4]; 1092 }; 1093 #define DMI_MATCH(a, b) {(a), (b)} 1094 bool dmi_check_system(const struct dmi_system_id *); 1095 1096 extern int drm_notyet_flag; 1097 extern int drm_debug; 1098 1099 extern unsigned int drm_vblank_offdelay; 1100 extern unsigned int drm_timestamp_precision; 1101 1102 /* Device setup support (drm_drv.c) */ 1103 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1104 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1105 int drm_create_cdevs(device_t kdev); 1106 int drm_detach(device_t kdev); 1107 d_ioctl_t drm_ioctl; 1108 d_open_t drm_open; 1109 d_close_t drm_close; 1110 d_read_t drm_read; 1111 d_kqfilter_t drm_kqfilter; 1112 d_mmap_t drm_mmap; 1113 d_mmap_single_t drm_mmap_single; 1114 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1115 1116 void drm_event_wakeup(struct drm_pending_event *e); 1117 1118 int drm_add_busid_modesetting(struct drm_device *dev, 1119 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1120 1121 /* File operations helpers (drm_fops.c) */ 1122 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1123 DRM_STRUCTPROC *p, 1124 struct drm_device *dev); 1125 extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, 1126 DRM_STRUCTPROC *p); 1127 1128 #ifdef DUMBBELL_WIP 1129 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1130 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1131 int *prime_fd); 1132 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1133 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1134 1135 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, 1136 struct drm_file *file_priv); 1137 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, 1138 struct drm_file *file_priv); 1139 1140 #ifdef DUMBBELL_WIP 1141 /* 1142 * See drm_prime.c 1143 * -- dumbbell@ 1144 */ 1145 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, 1146 dma_addr_t *addrs, int max_pages); 1147 #endif /* DUMBBELL_WIP */ 1148 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); 1149 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1150 1151 1152 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); 1153 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); 1154 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); 1155 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); 1156 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); 1157 1158 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); 1159 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, 1160 struct drm_gem_object **obj); 1161 #endif /* DUMBBELL_WIP */ 1162 1163 /* Memory management support (drm_memory.c) */ 1164 void drm_mem_init(void); 1165 void drm_mem_uninit(void); 1166 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 1167 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 1168 void drm_ioremapfree(drm_local_map_t *map); 1169 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 1170 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 1171 1172 int drm_ctxbitmap_init(struct drm_device *dev); 1173 void drm_ctxbitmap_cleanup(struct drm_device *dev); 1174 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1175 int drm_ctxbitmap_next(struct drm_device *dev); 1176 1177 /* Locking IOCTL support (drm_lock.c) */ 1178 int drm_lock_take(struct drm_lock_data *lock_data, 1179 unsigned int context); 1180 int drm_lock_transfer(struct drm_lock_data *lock_data, 1181 unsigned int context); 1182 int drm_lock_free(struct drm_lock_data *lock_data, 1183 unsigned int context); 1184 1185 /* Buffer management support (drm_bufs.c) */ 1186 unsigned long drm_get_resource_start(struct drm_device *dev, 1187 unsigned int resource); 1188 unsigned long drm_get_resource_len(struct drm_device *dev, 1189 unsigned int resource); 1190 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1191 int drm_order(unsigned long size); 1192 int drm_addmap(struct drm_device *dev, unsigned long offset, 1193 unsigned long size, 1194 enum drm_map_type type, enum drm_map_flags flags, 1195 drm_local_map_t **map_ptr); 1196 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1197 int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request); 1198 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1199 1200 /* DMA support (drm_dma.c) */ 1201 int drm_dma_setup(struct drm_device *dev); 1202 void drm_dma_takedown(struct drm_device *dev); 1203 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1204 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1205 #define drm_core_reclaim_buffers drm_reclaim_buffers 1206 1207 /* IRQ support (drm_irq.c) */ 1208 int drm_irq_install(struct drm_device *dev); 1209 int drm_irq_uninstall(struct drm_device *dev); 1210 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 1211 void drm_driver_irq_preinstall(struct drm_device *dev); 1212 void drm_driver_irq_postinstall(struct drm_device *dev); 1213 void drm_driver_irq_uninstall(struct drm_device *dev); 1214 1215 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1216 void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1217 int drm_modeset_ctl(struct drm_device *dev, void *data, 1218 struct drm_file *file_priv); 1219 1220 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1221 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1222 struct drm_file *filp); 1223 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1224 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1225 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1226 struct timeval *vblanktime); 1227 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1228 void drm_handle_vblank_events(struct drm_device *dev, int crtc); 1229 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1230 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1231 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1232 extern void drm_vblank_cleanup(struct drm_device *dev); 1233 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1234 struct timeval *tvblank, unsigned flags); 1235 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1236 int crtc, int *max_error, 1237 struct timeval *vblank_time, 1238 unsigned flags, 1239 struct drm_crtc *refcrtc); 1240 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 1241 1242 struct timeval ns_to_timeval(const int64_t nsec); 1243 int64_t timeval_to_ns(const struct timeval *tv); 1244 1245 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 1246 int drm_device_is_agp(struct drm_device *dev); 1247 int drm_device_is_pcie(struct drm_device *dev); 1248 drm_agp_head_t *drm_agp_init(void); 1249 int drm_agp_acquire(struct drm_device *dev); 1250 int drm_agp_release(struct drm_device *dev); 1251 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 1252 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1253 void *drm_agp_allocate_memory(size_t pages, u32 type); 1254 int drm_agp_free_memory(void *handle); 1255 int drm_agp_bind_memory(void *handle, off_t start); 1256 int drm_agp_unbind_memory(void *handle); 1257 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1258 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1259 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1260 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1261 1262 /* Scatter Gather Support (drm_scatter.c) */ 1263 void drm_sg_cleanup(drm_sg_mem_t *entry); 1264 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1265 1266 /* sysctl support (drm_sysctl.h) */ 1267 extern int drm_sysctl_init(struct drm_device *dev); 1268 extern int drm_sysctl_cleanup(struct drm_device *dev); 1269 1270 /* ATI PCIGART support (ati_pcigart.c) */ 1271 int drm_ati_pcigart_init(struct drm_device *dev, 1272 struct drm_ati_pcigart_info *gart_info); 1273 int drm_ati_pcigart_cleanup(struct drm_device *dev, 1274 struct drm_ati_pcigart_info *gart_info); 1275 1276 /* Cache management (drm_memory.c) */ 1277 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); 1278 1279 /* Locking IOCTL support (drm_drv.c) */ 1280 int drm_lock(struct drm_device *dev, void *data, 1281 struct drm_file *file_priv); 1282 int drm_unlock(struct drm_device *dev, void *data, 1283 struct drm_file *file_priv); 1284 int drm_version(struct drm_device *dev, void *data, 1285 struct drm_file *file_priv); 1286 int drm_setversion(struct drm_device *dev, void *data, 1287 struct drm_file *file_priv); 1288 1289 /* Misc. IOCTL support (drm_ioctl.c) */ 1290 int drm_irq_by_busid(struct drm_device *dev, void *data, 1291 struct drm_file *file_priv); 1292 int drm_getunique(struct drm_device *dev, void *data, 1293 struct drm_file *file_priv); 1294 int drm_setunique(struct drm_device *dev, void *data, 1295 struct drm_file *file_priv); 1296 int drm_getmap(struct drm_device *dev, void *data, 1297 struct drm_file *file_priv); 1298 int drm_getclient(struct drm_device *dev, void *data, 1299 struct drm_file *file_priv); 1300 int drm_getstats(struct drm_device *dev, void *data, 1301 struct drm_file *file_priv); 1302 int drm_getcap(struct drm_device *dev, void *data, 1303 struct drm_file *file_priv); 1304 int drm_noop(struct drm_device *dev, void *data, 1305 struct drm_file *file_priv); 1306 1307 /* Context IOCTL support (drm_context.c) */ 1308 int drm_resctx(struct drm_device *dev, void *data, 1309 struct drm_file *file_priv); 1310 int drm_addctx(struct drm_device *dev, void *data, 1311 struct drm_file *file_priv); 1312 int drm_modctx(struct drm_device *dev, void *data, 1313 struct drm_file *file_priv); 1314 int drm_getctx(struct drm_device *dev, void *data, 1315 struct drm_file *file_priv); 1316 int drm_switchctx(struct drm_device *dev, void *data, 1317 struct drm_file *file_priv); 1318 int drm_newctx(struct drm_device *dev, void *data, 1319 struct drm_file *file_priv); 1320 int drm_rmctx(struct drm_device *dev, void *data, 1321 struct drm_file *file_priv); 1322 int drm_setsareactx(struct drm_device *dev, void *data, 1323 struct drm_file *file_priv); 1324 int drm_getsareactx(struct drm_device *dev, void *data, 1325 struct drm_file *file_priv); 1326 1327 /* Authentication IOCTL support (drm_auth.c) */ 1328 int drm_getmagic(struct drm_device *dev, void *data, 1329 struct drm_file *file_priv); 1330 int drm_authmagic(struct drm_device *dev, void *data, 1331 struct drm_file *file_priv); 1332 1333 /* Buffer management support (drm_bufs.c) */ 1334 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1335 struct drm_file *file_priv); 1336 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1337 struct drm_file *file_priv); 1338 int drm_addbufs(struct drm_device *dev, void *data, 1339 struct drm_file *file_priv); 1340 int drm_infobufs(struct drm_device *dev, void *data, 1341 struct drm_file *file_priv); 1342 int drm_markbufs(struct drm_device *dev, void *data, 1343 struct drm_file *file_priv); 1344 int drm_freebufs(struct drm_device *dev, void *data, 1345 struct drm_file *file_priv); 1346 int drm_mapbufs(struct drm_device *dev, void *data, 1347 struct drm_file *file_priv); 1348 1349 /* DMA support (drm_dma.c) */ 1350 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1351 1352 /* IRQ support (drm_irq.c) */ 1353 int drm_control(struct drm_device *dev, void *data, 1354 struct drm_file *file_priv); 1355 1356 /* AGP/GART support (drm_agpsupport.c) */ 1357 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1358 struct drm_file *file_priv); 1359 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1360 struct drm_file *file_priv); 1361 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1362 struct drm_file *file_priv); 1363 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1364 struct drm_file *file_priv); 1365 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1366 struct drm_file *file_priv); 1367 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1368 struct drm_file *file_priv); 1369 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1370 struct drm_file *file_priv); 1371 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1372 struct drm_file *file_priv); 1373 1374 /* Stub support (drm_stub.h) */ 1375 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1376 struct drm_file *file_priv); 1377 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1378 struct drm_file *file_priv); 1379 1380 /* Scatter Gather Support (drm_scatter.c) */ 1381 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1382 struct drm_file *file_priv); 1383 int drm_sg_free(struct drm_device *dev, void *data, 1384 struct drm_file *file_priv); 1385 1386 /* consistent PCI memory functions (drm_pci.c) */ 1387 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1388 size_t align, dma_addr_t maxaddr); 1389 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1390 1391 /* sysfs support (drm_sysfs.c) */ 1392 extern char *drm_get_connector_status_name(enum drm_connector_status status); 1393 1394 /* Graphics Execution Manager library functions (drm_gem.c) */ 1395 int drm_gem_init(struct drm_device *dev); 1396 void drm_gem_destroy(struct drm_device *dev); 1397 void drm_gem_object_release(struct drm_gem_object *obj); 1398 void drm_gem_object_free(struct kref *kref); 1399 1400 int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1401 struct drm_file *file_priv); 1402 int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1403 struct drm_file *file_priv); 1404 int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1405 struct drm_file *file_priv); 1406 void drm_gem_object_handle_free(struct drm_gem_object *obj); 1407 1408 #include <drm/drm_global.h> 1409 1410 static inline void 1411 drm_gem_object_reference(struct drm_gem_object *obj) 1412 { 1413 kref_get(&obj->refcount); 1414 } 1415 1416 static inline void 1417 drm_gem_object_unreference(struct drm_gem_object *obj) 1418 { 1419 if (obj != NULL) 1420 kref_put(&obj->refcount, drm_gem_object_free); 1421 } 1422 1423 static inline void 1424 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1425 { 1426 if (obj != NULL) { 1427 struct drm_device *dev = obj->dev; 1428 DRM_LOCK(dev); 1429 kref_put(&obj->refcount, drm_gem_object_free); 1430 DRM_UNLOCK(dev); 1431 } 1432 } 1433 1434 int drm_gem_handle_create(struct drm_file *file_priv, 1435 struct drm_gem_object *obj, 1436 u32 *handlep); 1437 int drm_gem_handle_delete(struct drm_file *filp, u32 handle); 1438 1439 static inline void 1440 drm_gem_object_handle_reference(struct drm_gem_object *obj) 1441 { 1442 drm_gem_object_reference(obj); 1443 atomic_inc(&obj->handle_count); 1444 } 1445 1446 static inline void 1447 drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1448 { 1449 if (obj == NULL) 1450 return; 1451 1452 if (atomic_read(&obj->handle_count) == 0) 1453 return; 1454 /* 1455 * Must bump handle count first as this may be the last 1456 * ref, in which case the object would disappear before we 1457 * checked for a name 1458 */ 1459 if (atomic_dec_and_test(&obj->handle_count)) 1460 drm_gem_object_handle_free(obj); 1461 drm_gem_object_unreference(obj); 1462 } 1463 1464 static inline void 1465 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) 1466 { 1467 if (obj == NULL) 1468 return; 1469 1470 if (atomic_read(&obj->handle_count) == 0) 1471 return; 1472 1473 /* 1474 * Must bump handle count first as this may be the last 1475 * ref, in which case the object would disappear before we 1476 * checked for a name 1477 */ 1478 1479 if (atomic_dec_and_test(&obj->handle_count)) 1480 drm_gem_object_handle_free(obj); 1481 drm_gem_object_unreference_unlocked(obj); 1482 } 1483 1484 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, 1485 size_t size); 1486 int drm_gem_private_object_init(struct drm_device *dev, 1487 struct drm_gem_object *obj, size_t size); 1488 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1489 size_t size); 1490 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1491 struct drm_file *file_priv, uint32_t handle); 1492 1493 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); 1494 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); 1495 1496 int drm_gem_create_mmap_offset(struct drm_gem_object *obj); 1497 void drm_gem_free_mmap_offset(struct drm_gem_object *obj); 1498 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1499 vm_size_t size, struct vm_object **obj_res, int nprot); 1500 void drm_gem_pager_dtr(void *obj); 1501 1502 struct ttm_bo_device; 1503 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, 1504 vm_size_t size, struct vm_object **obj_res, int nprot); 1505 struct ttm_buffer_object; 1506 void ttm_bo_release_mmap(struct ttm_buffer_object *bo); 1507 1508 void drm_device_lock_mtx(struct drm_device *dev); 1509 void drm_device_unlock_mtx(struct drm_device *dev); 1510 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, 1511 const char *msg, int timeout); 1512 void drm_device_assert_mtx_locked(struct drm_device *dev); 1513 void drm_device_assert_mtx_unlocked(struct drm_device *dev); 1514 1515 void drm_device_lock_struct(struct drm_device *dev); 1516 void drm_device_unlock_struct(struct drm_device *dev); 1517 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, 1518 const char *msg, int timeout); 1519 void drm_device_assert_struct_locked(struct drm_device *dev); 1520 void drm_device_assert_struct_unlocked(struct drm_device *dev); 1521 1522 void drm_compat_locking_init(struct drm_device *dev); 1523 void drm_sleep_locking_init(struct drm_device *dev); 1524 1525 /* drm_modes.c */ 1526 bool drm_mode_parse_command_line_for_connector(const char *mode_option, 1527 struct drm_connector *connector, struct drm_cmdline_mode *mode); 1528 struct drm_display_mode *drm_mode_create_from_cmdline_mode( 1529 struct drm_device *dev, struct drm_cmdline_mode *cmd); 1530 1531 /* Inline replacements for drm_alloc and friends */ 1532 static __inline__ void * 1533 drm_alloc(size_t size, struct malloc_type *area) 1534 { 1535 return kmalloc(size, area, M_NOWAIT); 1536 } 1537 1538 static __inline__ void * 1539 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 1540 { 1541 return kmalloc(size * nmemb, area, M_NOWAIT | M_ZERO); 1542 } 1543 1544 static __inline__ void * 1545 drm_realloc(void *oldpt, size_t oldsize, size_t size, 1546 struct malloc_type *area) 1547 { 1548 void *res; 1549 res = krealloc(oldpt, size, area, M_NOWAIT); 1550 if (res == NULL && oldpt != NULL) 1551 kfree(oldpt,area); 1552 return res; 1553 } 1554 1555 static __inline__ void 1556 drm_free(void *pt, struct malloc_type *area) 1557 { 1558 if (pt != NULL) 1559 kfree(pt, area); 1560 } 1561 1562 /* Inline replacements for DRM_IOREMAP macros */ 1563 static __inline__ void 1564 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 1565 { 1566 map->virtual = drm_ioremap_wc(dev, map); 1567 } 1568 static __inline__ void 1569 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1570 { 1571 map->virtual = drm_ioremap(dev, map); 1572 } 1573 static __inline__ void 1574 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1575 { 1576 if ( map->virtual && map->size ) 1577 drm_ioremapfree(map); 1578 } 1579 1580 static __inline__ struct drm_local_map * 1581 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1582 { 1583 struct drm_map_list *_entry; 1584 1585 list_for_each_entry(_entry, &dev->maplist, head) { 1586 if (offset == (unsigned long)_entry->map->handle) 1587 return _entry->map; 1588 } 1589 return NULL; 1590 } 1591 1592 static __inline__ void drm_core_dropmap(struct drm_map *map) 1593 { 1594 } 1595 1596 /* FreeBSD compatibility macros */ 1597 #define PROC_LOCK(p) 1598 #define PROC_UNLOCK(p) 1599 1600 #define VM_OBJECT_RLOCK(object) VM_OBJECT_LOCK(object) 1601 #define VM_OBJECT_RUNLOCK(object) VM_OBJECT_UNLOCK(object) 1602 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1603 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1604 1605 #define CTR2(one,two,three,four) 1606 1607 #define DRM_PCIE_SPEED_25 1 1608 #define DRM_PCIE_SPEED_50 2 1609 #define DRM_PCIE_SPEED_80 4 1610 1611 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1612 1613 #define drm_can_sleep() (DRM_HZ & 1) 1614 1615 #endif /* __KERNEL__ */ 1616 #endif /* _DRM_P_H_ */ 1617