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 MALLOC_DECLARE(M_DRM); 94 95 #include <uapi_drm/drm.h> 96 #include <uapi_drm/drm_sarea.h> 97 98 #include <linux/atomic.h> 99 #include <linux/bug.h> 100 #include <linux/err.h> 101 #include <linux/idr.h> 102 #include <linux/pci.h> 103 #include <linux/jiffies.h> 104 #include <linux/kernel.h> 105 #include <linux/kref.h> 106 #include <linux/list.h> 107 #include <linux/mm.h> 108 #include <linux/moduleparam.h> 109 #include <linux/mutex.h> 110 #include <linux/scatterlist.h> 111 #include <linux/timer.h> 112 #include <asm/io.h> 113 #include <linux/types.h> 114 #include <linux/wait.h> 115 #include <linux/workqueue.h> 116 117 #include <asm/uaccess.h> 118 119 struct drm_file; 120 struct drm_device; 121 122 #include <drm/drm_os_linux.h> 123 #include <drm/drm_hashtab.h> 124 #include <drm/drm_mm.h> 125 126 #define DRM_UT_CORE 0x01 127 #define DRM_UT_DRIVER 0x02 128 #define DRM_UT_KMS 0x04 129 #define DRM_UT_PRIME 0x08 130 131 #include "opt_drm.h" 132 #ifdef DRM_DEBUG 133 #undef DRM_DEBUG 134 #define DRM_DEBUG_DEFAULT_ON 1 135 #endif /* DRM_DEBUG */ 136 137 #define DRM_DEBUGBITS_DEBUG 0x1 138 #define DRM_DEBUGBITS_KMS 0x2 139 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 140 141 #undef DRM_LINUX 142 #define DRM_LINUX 0 143 144 /***********************************************************************/ 145 /** \name DRM template customization defaults */ 146 /*@{*/ 147 148 /* driver capabilities and requirements mask */ 149 #define DRIVER_USE_AGP 0x1 150 #define DRIVER_REQUIRE_AGP 0x2 151 #define DRIVER_USE_MTRR 0x4 152 #define DRIVER_PCI_DMA 0x8 153 #define DRIVER_SG 0x10 154 #define DRIVER_HAVE_DMA 0x20 155 #define DRIVER_HAVE_IRQ 0x40 156 #define DRIVER_IRQ_SHARED 0x80 157 #define DRIVER_IRQ_VBL 0x100 158 #define DRIVER_DMA_QUEUE 0x200 159 #define DRIVER_FB_DMA 0x400 160 #define DRIVER_IRQ_VBL2 0x800 161 #define DRIVER_GEM 0x1000 162 #define DRIVER_MODESET 0x2000 163 #define DRIVER_PRIME 0x4000 164 #define DRIVER_LOCKLESS_IRQ 0x8000 165 166 /***********************************************************************/ 167 /** \name Begin the DRM... */ 168 /*@{*/ 169 170 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 171 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 172 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 173 174 #define DRM_GEM_MAPPING_MASK (3ULL << 62) 175 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ 176 #define DRM_GEM_MAX_IDX 0x3fffff 177 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) 178 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) 179 #define DRM_GEM_MAPPING_MAPOFF(o) \ 180 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) 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 DRM_WAKEUP(w) wakeup((void *)w) 203 #define DRM_WAKEUP_INT(w) wakeup(w) 204 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 205 206 #define DRM_CURPROC curthread 207 #define DRM_STRUCTPROC struct thread 208 #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1) 209 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE) 210 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE) 211 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ 212 (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout))) 213 #if defined(INVARIANTS) 214 #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0); 215 #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0); 216 #else 217 #define DRM_LOCK_ASSERT(d) 218 #define DRM_UNLOCK_ASSERT(d) 219 #endif 220 221 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 222 223 #define DRM_IRQ_ARGS void *arg 224 typedef void irqreturn_t; 225 #define IRQ_HANDLED /* nothing */ 226 #define IRQ_NONE /* nothing */ 227 228 enum { 229 DRM_IS_NOT_AGP, 230 DRM_IS_AGP, 231 DRM_MIGHT_BE_AGP 232 }; 233 #define DRM_AGP_MEM struct agp_memory_info 234 235 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 236 237 /* DRM_SUSER returns true if the user is superuser */ 238 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 239 #define DRM_AGP_FIND_DEVICE() agp_find_device() 240 #define DRM_MTRR_WC MDF_WRITECOMBINE 241 242 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 243 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 244 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 245 */ 246 #define DRM_READMEMORYBARRIER() cpu_lfence() 247 #define DRM_WRITEMEMORYBARRIER() cpu_sfence() 248 #define DRM_MEMORYBARRIER() cpu_mfence() 249 250 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 251 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 252 253 #define DRM_COPY_TO_USER(user, kern, size) \ 254 copyout(kern, user, size) 255 #define DRM_COPY_FROM_USER(kern, user, size) \ 256 copyin(user, kern, size) 257 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 258 copyin(arg2, arg1, arg3) 259 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 260 copyout(arg2, arg1, arg3) 261 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 262 ((val) = fuword32(uaddr), 0) 263 264 #define drm_can_sleep() (DRM_HZ & 1) 265 266 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 267 (_map) = (_dev)->context_sareas[_ctx]; \ 268 } while(0) 269 270 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 271 do { \ 272 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 273 dev->lock.file_priv != file_priv) { \ 274 DRM_ERROR("%s called without lock held\n", \ 275 __FUNCTION__); \ 276 return EINVAL; \ 277 } \ 278 } while (0) 279 280 /* Returns -errno to shared code */ 281 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 282 for ( ret = 0 ; !ret && !(condition) ; ) { \ 283 DRM_UNLOCK(dev); \ 284 lwkt_serialize_enter(&dev->irq_lock); \ 285 if (!(condition)) { \ 286 tsleep_interlock(&(queue), PCATCH); \ 287 lwkt_serialize_exit(&dev->irq_lock); \ 288 ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ 289 "drmwtq", (timeout)); \ 290 } else { \ 291 lwkt_serialize_exit(&dev->irq_lock); \ 292 } \ 293 DRM_LOCK(dev); \ 294 } 295 296 __inline static void 297 vm_page_unhold_pages(vm_page_t *ma, int count) 298 { 299 int i; 300 301 for (i = 0; i < count; i++) 302 vm_page_unhold(ma[i]); 303 } 304 305 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 306 vm_memattr_t memattr); 307 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 308 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 309 310 #define DRM_ERROR(fmt, ...) \ 311 kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 312 DRM_CURRENTPID, __func__ , ##__VA_ARGS__) 313 314 #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) 315 316 #define DRM_DEBUG(fmt, ...) do { \ 317 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ 318 kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 319 __func__ , ##__VA_ARGS__); \ 320 } while (0) 321 322 #define DRM_DEBUG_KMS(fmt, ...) do { \ 323 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 324 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 325 __func__ , ##__VA_ARGS__); \ 326 } while (0) 327 328 #define DRM_DEBUG_DRIVER(fmt, ...) do { \ 329 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ 330 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ 331 __func__ , ##__VA_ARGS__); \ 332 } while (0) 333 334 #define DRM_LOG_KMS(fmt, ...) do { \ 335 kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \ 336 __func__ , ##__VA_ARGS__); \ 337 } while (0) 338 339 #define dev_dbg(dev, fmt, ...) do { \ 340 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ 341 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ 342 } \ 343 } while (0) 344 345 typedef struct drm_pci_id_list 346 { 347 int vendor; 348 int device; 349 long driver_private; 350 char *name; 351 } drm_pci_id_list_t; 352 353 struct drm_msi_blacklist_entry 354 { 355 int vendor; 356 int device; 357 }; 358 359 #define DRM_IOCTL_NR(n) ((n) & 0xff) 360 361 #define DRM_AUTH 0x1 362 #define DRM_MASTER 0x2 363 #define DRM_ROOT_ONLY 0x4 364 #define DRM_CONTROL_ALLOW 0x8 365 #define DRM_UNLOCKED 0x10 366 367 typedef struct drm_ioctl_desc { 368 unsigned long cmd; 369 int (*func)(struct drm_device *dev, void *data, 370 struct drm_file *file_priv); 371 int flags; 372 unsigned int cmd_drv; 373 } drm_ioctl_desc_t; 374 375 /** 376 * Creates a driver or general drm_ioctl_desc array entry for the given 377 * ioctl, for use by drm_ioctl(). 378 */ 379 #define DRM_IOCTL_DEF(ioctl, func, flags) \ 380 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 381 382 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 383 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 384 385 typedef struct drm_magic_entry { 386 drm_magic_t magic; 387 struct drm_file *priv; 388 struct drm_magic_entry *next; 389 } drm_magic_entry_t; 390 391 typedef struct drm_magic_head { 392 struct drm_magic_entry *head; 393 struct drm_magic_entry *tail; 394 } drm_magic_head_t; 395 396 typedef struct drm_buf { 397 int idx; /**< Index into master buflist */ 398 int total; /**< Buffer size */ 399 int order; /**< log-base-2(total) */ 400 int used; /**< Amount of buffer in use (for DMA) */ 401 unsigned long offset; /**< Byte offset (used internally) */ 402 void *address; /**< Address of buffer */ 403 unsigned long bus_address; /**< Bus address of buffer */ 404 struct drm_buf *next; /**< Kernel-only: used for free list */ 405 __volatile__ int waiting; /**< On kernel DMA queue */ 406 __volatile__ int pending; /**< On hardware DMA queue */ 407 struct drm_file *file_priv; /**< Private of holding file descr */ 408 int context; /**< Kernel queue for this buffer */ 409 int while_locked; /**< Dispatch this buffer while locked */ 410 enum { 411 DRM_LIST_NONE = 0, 412 DRM_LIST_FREE = 1, 413 DRM_LIST_WAIT = 2, 414 DRM_LIST_PEND = 3, 415 DRM_LIST_PRIO = 4, 416 DRM_LIST_RECLAIM = 5 417 } list; /**< Which list we're on */ 418 419 int dev_priv_size; /**< Size of buffer private storage */ 420 void *dev_private; /**< Per-buffer private storage */ 421 } drm_buf_t; 422 423 struct drm_freelist { 424 int initialized; /* Freelist in use */ 425 atomic_t count; /* Number of free buffers */ 426 drm_buf_t *next; /* End pointer */ 427 428 wait_queue_head_t waiting; /**< Processes waiting on free bufs */ 429 int low_mark; /* Low water mark */ 430 int high_mark; /* High water mark */ 431 }; 432 433 typedef struct drm_dma_handle { 434 void *vaddr; 435 bus_addr_t busaddr; 436 bus_dma_tag_t tag; 437 bus_dmamap_t map; 438 } drm_dma_handle_t; 439 440 typedef struct drm_buf_entry { 441 int buf_size; 442 int buf_count; 443 drm_buf_t *buflist; 444 int seg_count; 445 drm_dma_handle_t **seglist; 446 int page_order; 447 448 struct drm_freelist freelist; 449 } drm_buf_entry_t; 450 451 /* Event queued up for userspace to read */ 452 struct drm_pending_event { 453 struct drm_event *event; 454 struct list_head link; 455 struct drm_file *file_priv; 456 pid_t pid; /* pid of requester, no guarantee it's valid by the time 457 we deliver the event, for tracing only */ 458 void (*destroy)(struct drm_pending_event *event); 459 }; 460 461 /* initial implementaton using a linked list - todo hashtab */ 462 struct drm_prime_file_private { 463 struct list_head head; 464 #ifdef DUMBBELL_WIP 465 struct mutex lock; 466 #endif /* DUMBBELL_WIP */ 467 }; 468 469 /** File private data */ 470 struct drm_file { 471 int authenticated; 472 struct drm_device *dev; 473 int master; 474 pid_t pid; 475 uid_t uid; 476 drm_magic_t magic; 477 unsigned long ioctl_count; 478 struct list_head lhead; 479 struct kqinfo dkq; 480 481 /** Mapping of mm object handles to object pointers. */ 482 struct idr object_idr; 483 /** Lock for synchronization of access to object_idr. */ 484 struct lock table_lock; 485 486 void *driver_priv; 487 488 int is_master; 489 struct drm_master *masterp; 490 491 struct list_head fbs; 492 493 wait_queue_head_t event_wait; 494 struct list_head event_list; 495 int event_space; 496 497 struct drm_prime_file_private prime; 498 }; 499 500 /** 501 * Lock data. 502 */ 503 struct drm_lock_data { 504 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 505 /** Private of lock holder's file (NULL=kernel) */ 506 struct drm_file *file_priv; 507 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 508 unsigned long lock_time; /**< Time of last lock in jiffies */ 509 }; 510 511 /* This structure, in the struct drm_device, is always initialized while the 512 * device 513 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 514 * when set marks that no further bufs may be allocated until device teardown 515 * occurs (when the last open of the device has closed). The high/low 516 * watermarks of bufs are only touched by the X Server, and thus not 517 * concurrently accessed, so no locking is needed. 518 */ 519 typedef struct drm_device_dma { 520 521 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 522 int buf_count; /**< total number of buffers */ 523 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 524 int seg_count; 525 int page_count; /**< number of pages */ 526 unsigned long *pagelist; /**< page list */ 527 unsigned long byte_count; 528 enum { 529 _DRM_DMA_USE_AGP = 0x01, 530 _DRM_DMA_USE_SG = 0x02, 531 _DRM_DMA_USE_FB = 0x04, 532 _DRM_DMA_USE_PCI_RO = 0x08 533 } flags; 534 535 } drm_device_dma_t; 536 537 typedef struct drm_agp_mem { 538 void *handle; 539 unsigned long bound; /* address */ 540 int pages; 541 struct drm_agp_mem *prev; 542 struct drm_agp_mem *next; 543 } drm_agp_mem_t; 544 545 typedef struct drm_agp_head { 546 device_t agpdev; 547 struct agp_info agp_info; 548 const char *chipset; 549 drm_agp_mem_t *memory; 550 unsigned long mode; 551 int enabled; 552 int acquired; 553 unsigned long base; 554 int agp_mtrr; 555 int cant_use_aperture; 556 unsigned long page_mask; 557 } drm_agp_head_t; 558 559 typedef struct drm_sg_mem { 560 vm_offset_t vaddr; 561 vm_paddr_t *busaddr; 562 vm_pindex_t pages; 563 } drm_sg_mem_t; 564 565 /** 566 * Kernel side of a mapping 567 */ 568 struct drm_local_map { 569 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 570 unsigned long size; /**< Requested physical size (bytes) */ 571 enum drm_map_type type; /**< Type of memory to map */ 572 enum drm_map_flags flags; /**< Flags */ 573 void *handle; /**< User-space: "Handle" to pass to mmap() */ 574 /**< Kernel-space: kernel-virtual address */ 575 int mtrr; /**< MTRR slot used */ 576 }; 577 578 typedef struct drm_local_map drm_local_map_t; 579 580 /** 581 * Mappings list 582 */ 583 struct drm_map_list { 584 struct list_head head; /**< list head */ 585 struct drm_hash_item hash; 586 struct drm_local_map *map; /**< mapping */ 587 uint64_t user_token; 588 struct drm_master *master; 589 struct drm_mm_node *file_offset_node; /**< fake offset */ 590 }; 591 592 struct drm_vblank_info { 593 wait_queue_head_t queue; /* vblank wait queue */ 594 atomic_t count; /* number of VBLANK interrupts */ 595 /* (driver must alloc the right number of counters) */ 596 atomic_t refcount; /* number of users of vblank interrupts */ 597 u32 last; /* protected by dev->vbl_lock, used */ 598 /* for wraparound handling */ 599 int enabled; /* so we don't call enable more than */ 600 /* once per disable */ 601 int inmodeset; /* Display driver is setting mode */ 602 }; 603 604 /* location of GART table */ 605 #define DRM_ATI_GART_MAIN 1 606 #define DRM_ATI_GART_FB 2 607 608 #define DRM_ATI_GART_PCI 1 609 #define DRM_ATI_GART_PCIE 2 610 #define DRM_ATI_GART_IGP 3 611 612 struct drm_ati_pcigart_info { 613 int gart_table_location; 614 int gart_reg_if; 615 void *addr; 616 dma_addr_t bus_addr; 617 dma_addr_t table_mask; 618 dma_addr_t member_mask; 619 struct drm_dma_handle *table_handle; 620 drm_local_map_t mapping; 621 int table_size; 622 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ 623 }; 624 625 /** 626 * GEM specific mm private for tracking GEM objects 627 */ 628 struct drm_gem_mm { 629 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 630 struct unrhdr *idxunr; 631 }; 632 633 struct drm_gem_object { 634 /** Reference count of this object */ 635 struct kref refcount; 636 637 /** Handle count of this object. Each handle also holds a reference */ 638 atomic_t handle_count; /* number of handles on this object */ 639 640 /** Related drm device */ 641 struct drm_device *dev; 642 643 /** File representing the shmem storage: filp in Linux parlance */ 644 vm_object_t vm_obj; 645 646 bool on_map; 647 struct drm_hash_item map_list; 648 649 /** 650 * Size of the object, in bytes. Immutable over the object's 651 * lifetime. 652 */ 653 size_t size; 654 655 /** 656 * Global name for this object, starts at 1. 0 means unnamed. 657 * Access is covered by the object_name_lock in the related drm_device 658 */ 659 int name; 660 661 /** 662 * Memory domains. These monitor which caches contain read/write data 663 * related to the object. When transitioning from one set of domains 664 * to another, the driver is called to ensure that caches are suitably 665 * flushed and invalidated 666 */ 667 uint32_t read_domains; 668 uint32_t write_domain; 669 670 /** 671 * While validating an exec operation, the 672 * new read/write domain values are computed here. 673 * They will be transferred to the above values 674 * at the point that any cache flushing occurs 675 */ 676 uint32_t pending_read_domains; 677 uint32_t pending_write_domain; 678 679 void *driver_private; 680 681 #ifdef DUMBBELL_WIP 682 /* dma buf exported from this GEM object */ 683 struct dma_buf *export_dma_buf; 684 685 /* dma buf attachment backing this object */ 686 struct dma_buf_attachment *import_attach; 687 #endif /* DUMBBELL_WIP */ 688 }; 689 690 #include "drm_crtc.h" 691 692 /* per-master structure */ 693 struct drm_master { 694 695 struct kref refcount; /* refcount for this master */ 696 697 struct list_head head; /**< each minor contains a list of masters */ 698 struct drm_minor *minor; /**< link back to minor we are a master for */ 699 700 char *unique; /**< Unique identifier: e.g., busid */ 701 int unique_len; /**< Length of unique field */ 702 int unique_size; /**< amount allocated */ 703 704 int blocked; /**< Blocked due to VC switch? */ 705 706 /** \name Authentication */ 707 /*@{ */ 708 struct drm_open_hash magiclist; 709 struct list_head magicfree; 710 /*@} */ 711 712 struct drm_lock_data lock; /**< Information on hardware lock */ 713 714 void *driver_priv; /**< Private structure for driver to use */ 715 }; 716 717 /* Size of ringbuffer for vblank timestamps. Just double-buffer 718 * in initial implementation. 719 */ 720 #define DRM_VBLANKTIME_RBSIZE 2 721 722 /* Flags and return codes for get_vblank_timestamp() driver function. */ 723 #define DRM_CALLED_FROM_VBLIRQ 1 724 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 725 #define DRM_VBLANKTIME_INVBL (1 << 1) 726 727 /* get_scanout_position() return flags */ 728 #define DRM_SCANOUTPOS_VALID (1 << 0) 729 #define DRM_SCANOUTPOS_INVBL (1 << 1) 730 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 731 732 #ifndef DMA_BIT_MASK 733 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 734 #endif 735 736 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 737 738 struct drm_driver { 739 int (*load)(struct drm_device *, unsigned long flags); 740 int (*use_msi)(struct drm_device *, unsigned long flags); 741 int (*firstopen)(struct drm_device *); 742 int (*open)(struct drm_device *, struct drm_file *); 743 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 744 void (*postclose)(struct drm_device *, struct drm_file *); 745 void (*lastclose)(struct drm_device *); 746 int (*unload)(struct drm_device *); 747 void (*reclaim_buffers_locked)(struct drm_device *, 748 struct drm_file *file_priv); 749 int (*dma_ioctl)(struct drm_device *dev, void *data, 750 struct drm_file *file_priv); 751 void (*dma_ready)(struct drm_device *); 752 int (*dma_quiescent)(struct drm_device *); 753 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 754 enum drm_lock_flags flags); 755 int (*dma_flush_unblock)(struct drm_device *, int context, 756 enum drm_lock_flags flags); 757 int (*context_ctor)(struct drm_device *dev, int context); 758 int (*context_dtor)(struct drm_device *dev, int context); 759 int (*kernel_context_switch)(struct drm_device *dev, int old, 760 int new); 761 int (*kernel_context_switch_unlock)(struct drm_device *dev); 762 void (*irq_preinstall)(struct drm_device *dev); 763 int (*irq_postinstall)(struct drm_device *dev); 764 void (*irq_uninstall)(struct drm_device *dev); 765 void (*irq_handler)(DRM_IRQ_ARGS); 766 767 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 768 int (*enable_vblank)(struct drm_device *dev, int crtc); 769 void (*disable_vblank)(struct drm_device *dev, int crtc); 770 int (*get_scanout_position)(struct drm_device *dev, int crtc, 771 int *vpos, int *hpos); 772 773 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, 774 int *max_error, struct timeval *vblank_time, 775 unsigned flags); 776 777 int (*gem_init_object)(struct drm_gem_object *obj); 778 void (*gem_free_object)(struct drm_gem_object *obj); 779 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); 780 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); 781 782 struct cdev_pager_ops *gem_pager_ops; 783 784 int (*dumb_create)(struct drm_file *file_priv, 785 struct drm_device *dev, struct drm_mode_create_dumb *args); 786 int (*dumb_map_offset)(struct drm_file *file_priv, 787 struct drm_device *dev, uint32_t handle, uint64_t *offset); 788 int (*dumb_destroy)(struct drm_file *file_priv, 789 struct drm_device *dev, uint32_t handle); 790 791 int (*sysctl_init)(struct drm_device *dev, 792 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 793 void (*sysctl_cleanup)(struct drm_device *dev); 794 795 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 796 797 /** 798 * Called by \c drm_device_is_agp. Typically used to determine if a 799 * card is really attached to AGP or not. 800 * 801 * \param dev DRM device handle 802 * 803 * \returns 804 * One of three values is returned depending on whether or not the 805 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 806 * (return of 1), or may or may not be AGP (return of 2). 807 */ 808 int (*device_is_agp) (struct drm_device * dev); 809 810 drm_ioctl_desc_t *ioctls; 811 #ifdef COMPAT_FREEBSD32 812 drm_ioctl_desc_t *compat_ioctls; 813 int *compat_ioctls_nr; 814 #endif 815 816 int buf_priv_size; 817 818 int major; 819 int minor; 820 int patchlevel; 821 const char *name; /* Simple driver name */ 822 const char *desc; /* Longer driver name */ 823 const char *date; /* Date of last major changes. */ 824 825 u32 driver_features; 826 int num_ioctls; 827 }; 828 829 /** 830 * DRM minor structure. This structure represents a drm minor number. 831 */ 832 struct drm_minor { 833 int index; /**< Minor device number */ 834 int type; /**< Control or render */ 835 device_t kdev; /**< OS device */ 836 struct drm_device *dev; 837 838 struct drm_master *master; /* currently active master for this node */ 839 struct list_head master_list; 840 struct drm_mode_group mode_group; 841 }; 842 843 /* mode specified on the command line */ 844 struct drm_cmdline_mode { 845 bool specified; 846 bool refresh_specified; 847 bool bpp_specified; 848 int xres, yres; 849 int bpp; 850 int refresh; 851 bool rb; 852 bool interlace; 853 bool cvt; 854 bool margins; 855 enum drm_connector_force force; 856 }; 857 858 859 struct drm_pending_vblank_event { 860 struct drm_pending_event base; 861 int pipe; 862 struct drm_event_vblank event; 863 }; 864 865 struct drm_sysctl_info { 866 struct sysctl_ctx_list ctx; 867 char name[2]; 868 }; 869 870 /* Length for the array of resource pointers for drm_get_resource_*. */ 871 #define DRM_MAX_PCI_RESOURCE 6 872 873 /** 874 * DRM device structure. This structure represent a complete card that 875 * may contain multiple heads. 876 */ 877 struct drm_device { 878 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 879 880 uint16_t pci_subdevice; /* PCI subsystem device id */ 881 uint16_t pci_subvendor; /* PCI subsystem vendor id */ 882 883 char *unique; /* Unique identifier: e.g., busid */ 884 int unique_len; /* Length of unique field */ 885 struct cdev *devnode; /* Device number for mknod */ 886 int if_version; /* Highest interface version set */ 887 888 int flags; /* Flags to open(2) */ 889 890 /* Locks */ 891 struct spinlock dma_lock; /* protects dev->dma */ 892 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 893 struct lock dev_lock; /* protects everything else */ 894 895 /** \name Locks */ 896 /*@{ */ 897 struct lock struct_mutex; /**< For others */ 898 /*@} */ 899 900 /** \name Usage Counters */ 901 /*@{ */ 902 int open_count; /* Outstanding files open */ 903 int buf_use; /* Buffers in use -- cannot alloc */ 904 /*@} */ 905 906 907 /** \name Performance counters */ 908 /*@{ */ 909 unsigned long counters; 910 enum drm_stat_type types[15]; 911 atomic_t counts[15]; 912 /*@} */ 913 914 /* Authentication */ 915 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 916 917 struct list_head filelist; 918 919 /** \name Memory management */ 920 /*@{ */ 921 struct list_head maplist; /**< Linked list of regions */ 922 int map_count; /**< Number of mappable regions */ 923 struct drm_open_hash map_hash; /**< User token hash table for maps */ 924 925 drm_local_map_t **context_sareas; 926 int max_context; 927 928 struct drm_lock_data lock; /* Information on hardware lock */ 929 930 /* DMA queues (contexts) */ 931 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 932 933 /* Context support */ 934 int irq; /* Interrupt used by board */ 935 int msi_enabled; /* MSI enabled */ 936 int irqrid; /* Interrupt used by board */ 937 struct resource *irqr; /* Resource for interrupt used by board */ 938 void *irqh; /* Handle from bus_setup_intr */ 939 940 /* Storage of resource pointers for drm_get_resource_* */ 941 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 942 int pcirid[DRM_MAX_PCI_RESOURCE]; 943 944 int pci_domain; 945 int pci_bus; 946 int pci_slot; 947 int pci_func; 948 949 /** \name Context support */ 950 /*@{ */ 951 int irq_enabled; /**< True if irq handler is enabled */ 952 __volatile__ long context_flag; /**< Context swapping flag */ 953 int last_context; /**< Last current context */ 954 /*@} */ 955 956 int num_crtcs; 957 958 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 959 960 /* Sysctl support */ 961 struct drm_sysctl_info *sysctl; 962 int sysctl_node_idx; 963 964 965 drm_sg_mem_t *sg; /* Scatter gather memory */ 966 unsigned long *ctx_bitmap; 967 void *dev_private; 968 969 void *drm_ttm_bdev; 970 971 /* 972 * At load time, disabling the vblank interrupt won't be allowed since 973 * old clients may not call the modeset ioctl and therefore misbehave. 974 * Once the modeset ioctl *has* been called though, we can safely 975 * disable them when unused. 976 */ 977 int vblank_disable_allowed; 978 979 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */ 980 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 981 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ 982 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 983 struct lock vbl_lock; 984 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 985 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 986 /* for wraparound handling */ 987 int *vblank_enabled; /* so we don't call enable more than 988 once per disable */ 989 int *vblank_inmodeset; /* Display driver is setting mode */ 990 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 991 struct timer_list vblank_disable_timer; 992 993 u32 max_vblank_count; /**< size of vblank counter register */ 994 995 /** 996 * List of events 997 */ 998 struct list_head vblank_event_list; 999 struct lock event_lock; 1000 1001 /*@} */ 1002 1003 struct drm_agp_head *agp; /**< AGP data */ 1004 1005 struct device *dev; /**< Device structure */ 1006 struct pci_dev *pdev; /**< PCI device structure */ 1007 int pci_vendor; /**< PCI vendor id */ 1008 int pci_device; /**< PCI device id */ 1009 1010 struct drm_driver *driver; 1011 struct drm_local_map *agp_buffer_map; 1012 unsigned int agp_buffer_token; 1013 struct drm_minor *control; /**< Control node for card */ 1014 struct drm_minor *primary; /**< render type primary screen head */ 1015 1016 struct drm_mode_config mode_config; /**< Current mode config */ 1017 1018 /** \name GEM information */ 1019 /*@{ */ 1020 struct lock object_name_lock; 1021 struct idr object_name_idr; 1022 /*@} */ 1023 void *mm_private; 1024 1025 void *sysctl_private; 1026 char busid_str[128]; 1027 int modesetting; 1028 1029 int switch_power_state; 1030 }; 1031 1032 #define DRM_SWITCH_POWER_ON 0 1033 #define DRM_SWITCH_POWER_OFF 1 1034 #define DRM_SWITCH_POWER_CHANGING 2 1035 1036 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1037 int feature) 1038 { 1039 return ((dev->driver->driver_features & feature) ? 1 : 0); 1040 } 1041 1042 #if __OS_HAS_AGP 1043 static inline int drm_core_has_AGP(struct drm_device *dev) 1044 { 1045 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1046 } 1047 #else 1048 #define drm_core_has_AGP(dev) (0) 1049 #endif 1050 1051 enum dmi_field { 1052 DMI_NONE, 1053 DMI_BIOS_VENDOR, 1054 DMI_BIOS_VERSION, 1055 DMI_BIOS_DATE, 1056 DMI_SYS_VENDOR, 1057 DMI_PRODUCT_NAME, 1058 DMI_PRODUCT_VERSION, 1059 DMI_PRODUCT_SERIAL, 1060 DMI_PRODUCT_UUID, 1061 DMI_BOARD_VENDOR, 1062 DMI_BOARD_NAME, 1063 DMI_BOARD_VERSION, 1064 DMI_BOARD_SERIAL, 1065 DMI_BOARD_ASSET_TAG, 1066 DMI_CHASSIS_VENDOR, 1067 DMI_CHASSIS_TYPE, 1068 DMI_CHASSIS_VERSION, 1069 DMI_CHASSIS_SERIAL, 1070 DMI_CHASSIS_ASSET_TAG, 1071 DMI_STRING_MAX, 1072 }; 1073 1074 struct dmi_strmatch { 1075 unsigned char slot; 1076 char substr[79]; 1077 }; 1078 1079 struct dmi_system_id { 1080 int (*callback)(const struct dmi_system_id *); 1081 const char *ident; 1082 struct dmi_strmatch matches[4]; 1083 }; 1084 #define DMI_MATCH(a, b) {(a), (b)} 1085 bool dmi_check_system(const struct dmi_system_id *); 1086 1087 extern int drm_notyet_flag; 1088 extern int drm_debug; 1089 1090 extern unsigned int drm_vblank_offdelay; 1091 extern unsigned int drm_timestamp_precision; 1092 extern unsigned int drm_timestamp_monotonic; 1093 1094 /* Device setup support (drm_drv.c) */ 1095 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1096 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1097 int drm_create_cdevs(device_t kdev); 1098 1099 d_ioctl_t drm_ioctl; 1100 extern int drm_lastclose(struct drm_device *dev); 1101 1102 /* Device support (drm_fops.h) */ 1103 d_open_t drm_open; 1104 d_close_t drm_close; 1105 d_read_t drm_read; 1106 d_kqfilter_t drm_kqfilter; 1107 int drm_release(device_t kdev); 1108 1109 d_mmap_t drm_mmap; 1110 d_mmap_single_t drm_mmap_single; 1111 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 1112 1113 void drm_cdevpriv_dtor(void *cd); 1114 1115 void drm_event_wakeup(struct drm_pending_event *e); 1116 1117 int drm_add_busid_modesetting(struct drm_device *dev, 1118 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1119 1120 /* File operations helpers (drm_fops.c) */ 1121 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 1122 DRM_STRUCTPROC *p, 1123 struct drm_device *dev, 1124 struct file *fp); 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 /* 1186 * These are exported to drivers so that they can implement fencing using 1187 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1188 */ 1189 1190 unsigned long drm_get_resource_start(struct drm_device *dev, 1191 unsigned int resource); 1192 unsigned long drm_get_resource_len(struct drm_device *dev, 1193 unsigned int resource); 1194 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 1195 int drm_order(unsigned long size); 1196 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 1197 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 1198 extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1199 unsigned int size, enum drm_map_type type, 1200 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1201 1202 /* DMA support (drm_dma.c) */ 1203 int drm_dma_setup(struct drm_device *dev); 1204 void drm_dma_takedown(struct drm_device *dev); 1205 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 1206 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 1207 #define drm_core_reclaim_buffers drm_reclaim_buffers 1208 1209 /* IRQ support (drm_irq.h) */ 1210 int drm_irq_install(struct drm_device *dev); 1211 int drm_irq_uninstall(struct drm_device *dev); 1212 void drm_driver_irq_preinstall(struct drm_device *dev); 1213 void drm_driver_irq_postinstall(struct drm_device *dev); 1214 void drm_driver_irq_uninstall(struct drm_device *dev); 1215 1216 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1217 void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1218 int drm_modeset_ctl(struct drm_device *dev, void *data, 1219 struct drm_file *file_priv); 1220 1221 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1222 extern int drm_wait_vblank(struct drm_device *dev, void *data, 1223 struct drm_file *filp); 1224 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1225 extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1226 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, 1227 struct timeval *vblanktime); 1228 extern void drm_send_vblank_event(struct drm_device *dev, int crtc, 1229 struct drm_pending_vblank_event *e); 1230 extern bool drm_handle_vblank(struct drm_device *dev, int crtc); 1231 void drm_handle_vblank_events(struct drm_device *dev, int crtc); 1232 extern int drm_vblank_get(struct drm_device *dev, int crtc); 1233 extern void drm_vblank_put(struct drm_device *dev, int crtc); 1234 extern void drm_vblank_off(struct drm_device *dev, int crtc); 1235 extern void drm_vblank_cleanup(struct drm_device *dev); 1236 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, 1237 struct timeval *tvblank, unsigned flags); 1238 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, 1239 int crtc, int *max_error, 1240 struct timeval *vblank_time, 1241 unsigned flags, 1242 struct drm_crtc *refcrtc); 1243 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); 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 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1388 size_t align); 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_WAITOK | M_NULLOK); 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_WAITOK | M_NULLOK | 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_WAITOK | M_NULLOK); 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->handle = 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->handle = 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->handle && 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 #include <drm/drm_mem_util.h> 1597 1598 /* FreeBSD compatibility macros */ 1599 #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) 1600 #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) 1601 1602 #define DRM_PCIE_SPEED_25 1 1603 #define DRM_PCIE_SPEED_50 2 1604 #define DRM_PCIE_SPEED_80 4 1605 1606 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1607 1608 #define drm_can_sleep() (DRM_HZ & 1) 1609 1610 #endif /* __KERNEL__ */ 1611 #endif /* _DRM_P_H_ */ 1612