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