1 /* 2 * Internal Header for the Direct Rendering Manager 3 * 4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 6 * Copyright (c) 2009-2010, Code Aurora Forum. 7 * All rights reserved. 8 * 9 * Author: Rickard E. (Rik) Faith <faith@valinux.com> 10 * Author: Gareth Hughes <gareth@valinux.com> 11 * 12 * Permission is hereby granted, free of charge, to any person obtaining a 13 * copy of this software and associated documentation files (the "Software"), 14 * to deal in the Software without restriction, including without limitation 15 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 16 * and/or sell copies of the Software, and to permit persons to whom the 17 * Software is furnished to do so, subject to the following conditions: 18 * 19 * The above copyright notice and this permission notice (including the next 20 * paragraph) shall be included in all copies or substantial portions of the 21 * Software. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 24 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 25 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 26 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 27 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 28 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 29 * OTHER DEALINGS IN THE SOFTWARE. 30 */ 31 32 #ifndef _DRM_P_H_ 33 #define _DRM_P_H_ 34 35 #include <linux/agp_backend.h> 36 #include <linux/cdev.h> 37 #include <linux/dma-mapping.h> 38 #include <linux/file.h> 39 #include <linux/fs.h> 40 #include <linux/highmem.h> 41 #include <linux/idr.h> 42 #include <linux/init.h> 43 #include <linux/io.h> 44 #include <linux/jiffies.h> 45 #include <linux/kernel.h> 46 #include <linux/kref.h> 47 #include <linux/miscdevice.h> 48 #include <linux/mm.h> 49 #include <linux/mutex.h> 50 #include <linux/pci.h> 51 #include <linux/platform_device.h> 52 #include <linux/poll.h> 53 #include <linux/ratelimit.h> 54 #include <linux/rbtree.h> 55 #include <linux/sched.h> 56 #include <linux/slab.h> 57 #include <linux/seq_file.h> 58 #include <linux/types.h> 59 #include <linux/vmalloc.h> 60 #include <linux/workqueue.h> 61 #include <linux/dma-fence.h> 62 63 #include <asm/pgalloc.h> 64 #include <asm/uaccess.h> 65 66 #include <uapi/drm/drm.h> 67 #include <uapi/drm/drm_mode.h> 68 69 #include <drm/drm_agpsupport.h> 70 #include <drm/drm_crtc.h> 71 #include <drm/drm_fourcc.h> 72 #include <drm/drm_global.h> 73 #include <drm/drm_hashtab.h> 74 #include <drm/drm_mem_util.h> 75 #include <drm/drm_mm.h> 76 #include <drm/drm_os_linux.h> 77 #include <drm/drm_sarea.h> 78 #include <drm/drm_vma_manager.h> 79 80 #include <sys/conf.h> 81 #include <sys/device.h> 82 #include <sys/sysctl.h> 83 84 #include <vm/vm_extern.h> 85 #include <vm/vm_pager.h> 86 87 struct module; 88 89 struct drm_file; 90 struct drm_device; 91 struct drm_agp_head; 92 struct drm_local_map; 93 struct drm_device_dma; 94 struct drm_dma_handle; 95 struct drm_gem_object; 96 struct drm_master; 97 struct drm_vblank_crtc; 98 99 struct device_node; 100 struct videomode; 101 struct reservation_object; 102 struct dma_buf_attachment; 103 104 /* 105 * The following categories are defined: 106 * 107 * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... 108 * This is the category used by the DRM_DEBUG() macro. 109 * 110 * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... 111 * This is the category used by the DRM_DEBUG_DRIVER() macro. 112 * 113 * KMS: used in the modesetting code. 114 * This is the category used by the DRM_DEBUG_KMS() macro. 115 * 116 * PRIME: used in the prime code. 117 * This is the category used by the DRM_DEBUG_PRIME() macro. 118 * 119 * ATOMIC: used in the atomic code. 120 * This is the category used by the DRM_DEBUG_ATOMIC() macro. 121 * 122 * VBL: used for verbose debug message in the vblank code 123 * This is the category used by the DRM_DEBUG_VBL() macro. 124 * 125 * DragonFly-specific categories: 126 * 127 * PID: used as modifier to include PID number in messages. 128 * This is the category used by the all debug macros. 129 * 130 * FIOCTL: used in failed ioctl debugging. 131 * This is the category used by the DRM_DEBUG_FIOCTL() macro. 132 * 133 * IOCTL: used in ioctl debugging. 134 * This is the category used by the DRM_DEBUG_IOCTL() macro. 135 * 136 * Enabling verbose debug messages is done through the drm.debug parameter, 137 * each category being enabled by a bit. 138 * 139 * drm.debug=0x1 will enable CORE messages 140 * drm.debug=0x2 will enable DRIVER messages 141 * drm.debug=0x3 will enable CORE and DRIVER messages 142 * ... 143 * drm.debug=0x3f will enable all messages 144 * 145 * An interesting feature is that it's possible to enable verbose logging at 146 * run-time by using hw.drm.debug sysctl variable: 147 * # sysctl hw.drm.debug=0xfff 148 */ 149 #define DRM_UT_NONE 0x00 150 #define DRM_UT_CORE 0x01 151 #define DRM_UT_DRIVER 0x02 152 #define DRM_UT_KMS 0x04 153 #define DRM_UT_PRIME 0x08 154 #define DRM_UT_ATOMIC 0x10 155 #define DRM_UT_VBL 0x20 156 /* Extra DragonFly debug categories */ 157 #ifdef __DragonFly__ 158 #define DRM_UT_RES7 0x40 /* reserved for future expansion */ 159 #define DRM_UT_RES8 0x80 /* reserved for future expansion */ 160 #define DRM_UT_PID 0x100 161 #define DRM_UT_FIOCTL 0x200 162 #define DRM_UT_IOCTL 0x400 163 #endif 164 165 extern __printflike(2, 3) 166 void drm_ut_debug_printk(const char *function_name, 167 const char *format, ...); 168 extern __printflike(2, 3) 169 void drm_err(const char *func, const char *format, ...); 170 171 extern __printf(6, 7) 172 void drm_dev_printk(const struct device *dev, const char *level, 173 unsigned int category, const char *function_name, 174 const char *prefix, const char *format, ...); 175 176 extern __printf(3, 4) 177 void drm_printk(const char *level, unsigned int category, 178 const char *format, ...); 179 180 /***********************************************************************/ 181 /** \name DRM template customization defaults */ 182 /*@{*/ 183 184 /* driver capabilities and requirements mask */ 185 #define DRIVER_USE_AGP 0x1 186 #define DRIVER_LEGACY 0x2 187 #define DRIVER_PCI_DMA 0x8 188 #define DRIVER_SG 0x10 189 #define DRIVER_HAVE_DMA 0x20 190 #define DRIVER_HAVE_IRQ 0x40 191 #define DRIVER_IRQ_SHARED 0x80 192 #define DRIVER_GEM 0x1000 193 #define DRIVER_MODESET 0x2000 194 #define DRIVER_PRIME 0x4000 195 #define DRIVER_RENDER 0x8000 196 #define DRIVER_ATOMIC 0x10000 197 #define DRIVER_KMS_LEGACY_CONTEXT 0x20000 198 199 /***********************************************************************/ 200 /** \name Macros to make printk easier */ 201 /*@{*/ 202 203 #define _DRM_PRINTK(once, level, fmt, ...) \ 204 do { \ 205 printk##once(KERN_##level "[" DRM_NAME "] " fmt, \ 206 ##__VA_ARGS__); \ 207 } while (0) 208 209 #define DRM_INFO(fmt, ...) \ 210 _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__) 211 #define DRM_NOTE(fmt, ...) \ 212 _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__) 213 #define DRM_WARN(fmt, ...) \ 214 _DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__) 215 216 #define DRM_INFO_ONCE(fmt, ...) \ 217 _DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__) 218 #define DRM_NOTE_ONCE(fmt, ...) \ 219 _DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__) 220 #define DRM_WARN_ONCE(fmt, ...) \ 221 _DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__) 222 223 /** 224 * Error output. 225 * 226 * \param fmt printf() like format string. 227 * \param arg arguments 228 */ 229 #define DRM_DEV_ERROR(dev, fmt, ...) \ 230 drm_dev_printk(dev, KERN_ERR, DRM_UT_NONE, __func__, " *ERROR*",\ 231 fmt, ##__VA_ARGS__) 232 #define DRM_ERROR(fmt, ...) \ 233 drm_err(__func__, fmt, ##__VA_ARGS__) 234 235 /** 236 * Rate limited error output. Like DRM_ERROR() but won't flood the log. 237 * 238 * \param fmt printf() like format string. 239 * \param arg arguments 240 */ 241 #define DRM_ERROR_RATELIMITED(fmt, ...) \ 242 ({ \ 243 static struct krate krate_derr = { .freq = 1, .count = -16 }; \ 244 \ 245 krateprintf(&krate_derr, "error: [" DRM_NAME ":%s] *ERROR* " \ 246 fmt, __func__, ##__VA_ARGS__); \ 247 }) 248 249 #define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...) \ 250 ({ \ 251 static DEFINE_RATELIMIT_STATE(_rs, \ 252 DEFAULT_RATELIMIT_INTERVAL, \ 253 DEFAULT_RATELIMIT_BURST); \ 254 \ 255 if (__ratelimit(&_rs)) \ 256 DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__); \ 257 }) 258 259 #define DRM_DEV_INFO(dev, fmt, ...) \ 260 drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt, \ 261 ##__VA_ARGS__) 262 263 #define DRM_DEV_INFO_ONCE(dev, fmt, ...) \ 264 ({ \ 265 static bool __print_once __read_mostly; \ 266 if (!__print_once) { \ 267 __print_once = true; \ 268 DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__); \ 269 } \ 270 }) 271 272 /** 273 * Debug output. 274 * 275 * \param fmt printf() like format string. 276 * \param arg arguments 277 */ 278 #define DRM_DEV_DEBUG(dev, fmt, args...) \ 279 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_CORE, __func__, "", fmt, \ 280 ##args) 281 #define DRM_DEBUG(fmt, args...) \ 282 do { \ 283 if (unlikely(drm_debug & DRM_UT_CORE)) \ 284 drm_ut_debug_printk(__func__, fmt, ##args); \ 285 } while (0) 286 287 #define DRM_DEV_DEBUG_DRIVER(dev, fmt, args...) \ 288 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_DRIVER, __func__, "", \ 289 fmt, ##args) 290 #define DRM_DEBUG_DRIVER(fmt, args...) \ 291 do { \ 292 if (unlikely(drm_debug & DRM_UT_DRIVER)) \ 293 drm_ut_debug_printk(__func__, fmt, ##args); \ 294 } while (0) 295 296 #define DRM_DEV_DEBUG_KMS(dev, fmt, args...) \ 297 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_KMS, __func__, "", fmt, \ 298 ##args) 299 #define DRM_DEBUG_KMS(fmt, args...) \ 300 do { \ 301 if (unlikely(drm_debug & DRM_UT_KMS)) \ 302 drm_ut_debug_printk(__func__, fmt, ##args); \ 303 } while (0) 304 305 #define DRM_DEV_DEBUG_PRIME(dev, fmt, args...) \ 306 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_PRIME, __func__, "", \ 307 fmt, ##args) 308 309 #define DRM_DEBUG_PRIME(fmt, args...) \ 310 do { \ 311 if (unlikely(drm_debug & DRM_UT_PRIME)) \ 312 drm_ut_debug_printk(__func__, fmt, ##args); \ 313 } while (0) 314 315 #define DRM_DEV_DEBUG_ATOMIC(dev, fmt, args...) \ 316 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ATOMIC, __func__, "", \ 317 fmt, ##args) 318 #define DRM_DEBUG_ATOMIC(fmt, args...) \ 319 do { \ 320 if (unlikely(drm_debug & DRM_UT_ATOMIC)) \ 321 drm_ut_debug_printk(__func__, fmt, ##args); \ 322 } while (0) 323 324 #define DRM_DEV_DEBUG_VBL(dev, fmt, args...) \ 325 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_VBL, __func__, "", fmt, \ 326 ##args) 327 #define DRM_DEBUG_VBL(fmt, args...) \ 328 do { \ 329 if (unlikely(drm_debug & DRM_UT_VBL)) \ 330 drm_ut_debug_printk(__func__, fmt, ##args); \ 331 } while (0) 332 333 #ifdef __DragonFly__ 334 #define DRM_DEBUG_FIOCTL(fmt, args...) \ 335 do { \ 336 if (unlikely(drm_debug & DRM_UT_FIOCTL)) \ 337 drm_ut_debug_printk(__func__, fmt, ##args); \ 338 } while (0) 339 #define DRM_DEBUG_IOCTL(fmt, args...) \ 340 do { \ 341 if (unlikely(drm_debug & DRM_UT_IOCTL)) \ 342 drm_ut_debug_printk(__func__, fmt, ##args); \ 343 } while (0) 344 #define DRM_DEBUG_VBLANK DRM_DEBUG_VBL 345 #endif /* __DragonFly__ */ 346 347 #define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, level, fmt, args...) \ 348 ({ \ 349 static DEFINE_RATELIMIT_STATE(_rs, \ 350 DEFAULT_RATELIMIT_INTERVAL, \ 351 DEFAULT_RATELIMIT_BURST); \ 352 if (__ratelimit(&_rs)) \ 353 drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ ## level, \ 354 __func__, "", fmt, ##args); \ 355 }) 356 357 /** 358 * Rate limited debug output. Like DRM_DEBUG() but won't flood the log. 359 * 360 * \param fmt printf() like format string. 361 * \param arg arguments 362 */ 363 #define DRM_DEV_DEBUG_RATELIMITED(dev, fmt, args...) \ 364 DEV__DRM_DEFINE_DEBUG_RATELIMITED(dev, CORE, fmt, ##args) 365 #define DRM_DEBUG_RATELIMITED(fmt, args...) \ 366 DRM_DEV_DEBUG_RATELIMITED(NULL, fmt, ##args) 367 #define DRM_DEV_DEBUG_DRIVER_RATELIMITED(dev, fmt, args...) \ 368 _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRIVER, fmt, ##args) 369 #define DRM_DEBUG_DRIVER_RATELIMITED(fmt, args...) \ 370 DRM_DEV_DEBUG_DRIVER_RATELIMITED(NULL, fmt, ##args) 371 #define DRM_DEV_DEBUG_KMS_RATELIMITED(dev, fmt, args...) \ 372 _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, KMS, fmt, ##args) 373 #define DRM_DEBUG_KMS_RATELIMITED(fmt, args...) \ 374 DRM_DEV_DEBUG_KMS_RATELIMITED(NULL, fmt, ##args) 375 #define DRM_DEV_DEBUG_PRIME_RATELIMITED(dev, fmt, args...) \ 376 _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, PRIME, fmt, ##args) 377 #define DRM_DEBUG_PRIME_RATELIMITED(fmt, args...) \ 378 DRM_DEV_DEBUG_PRIME_RATELIMITED(NULL, fmt, ##args) 379 380 /*@}*/ 381 382 /***********************************************************************/ 383 /** \name Internal types and structures */ 384 /*@{*/ 385 386 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 387 388 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 389 #define DRM_DEV_UID UID_ROOT 390 #define DRM_DEV_GID GID_WHEEL 391 392 #define DRM_CURPROC curthread 393 #define DRM_STRUCTPROC struct thread 394 #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE) 395 #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE) 396 397 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 398 399 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 400 401 int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, 402 vm_memattr_t memattr); 403 void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); 404 vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); 405 406 typedef struct drm_pci_id_list 407 { 408 int vendor; 409 int device; 410 long driver_private; 411 char *name; 412 } drm_pci_id_list_t; 413 414 /** 415 * Ioctl function type. 416 * 417 * \param inode device inode. 418 * \param file_priv DRM file private pointer. 419 * \param cmd command. 420 * \param arg argument. 421 */ 422 typedef int drm_ioctl_t(struct drm_device *dev, void *data, 423 struct drm_file *file_priv); 424 425 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, 426 unsigned long arg); 427 428 #define DRM_IOCTL_NR(n) ((n) & 0xff) 429 #define DRM_MAJOR 226 430 431 #define DRM_AUTH 0x1 432 #define DRM_MASTER 0x2 433 #define DRM_ROOT_ONLY 0x4 434 #define DRM_CONTROL_ALLOW 0x8 435 #define DRM_UNLOCKED 0x10 436 #define DRM_RENDER_ALLOW 0x20 437 438 struct drm_ioctl_desc { 439 unsigned int cmd; 440 int flags; 441 drm_ioctl_t *func; 442 const char *name; 443 }; 444 445 /** 446 * Creates a driver or general drm_ioctl_desc array entry for the given 447 * ioctl, for use by drm_ioctl(). 448 */ 449 450 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 451 [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = { \ 452 .cmd = DRM_IOCTL_##ioctl, \ 453 .func = _func, \ 454 .flags = _flags, \ 455 .name = #ioctl \ 456 } 457 458 /* Event queued up for userspace to read */ 459 struct drm_pending_event { 460 struct completion *completion; 461 struct drm_event *event; 462 struct dma_fence *fence; 463 struct list_head link; 464 struct list_head pending_link; 465 struct drm_file *file_priv; 466 pid_t pid; /* pid of requester, no guarantee it's valid by the time 467 we deliver the event, for tracing only */ 468 }; 469 470 struct drm_prime_file_private { 471 struct lock lock; 472 struct rb_root dmabufs; 473 struct rb_root handles; 474 }; 475 476 /** File private data */ 477 struct drm_file { 478 unsigned authenticated :1; 479 /* true when the client has asked us to expose stereo 3D mode flags */ 480 unsigned stereo_allowed :1; 481 /* 482 * true if client understands CRTC primary planes and cursor planes 483 * in the plane list 484 */ 485 unsigned universal_planes:1; 486 /* true if client understands atomic properties */ 487 unsigned atomic:1; 488 /* 489 * This client is the creator of @master. 490 * Protected by struct drm_device::master_mutex. 491 */ 492 unsigned is_master:1; 493 494 pid_t pid; 495 drm_magic_t magic; 496 struct list_head lhead; 497 struct drm_minor *minor; 498 unsigned long lock_count; 499 500 /** Mapping of mm object handles to object pointers. */ 501 struct idr object_idr; 502 /** Lock for synchronization of access to object_idr. */ 503 struct lock table_lock; 504 505 struct file *filp; 506 void *driver_priv; 507 508 struct drm_master *master; /* master this node is currently associated with 509 N.B. not always dev->master */ 510 /** 511 * fbs - List of framebuffers associated with this file. 512 * 513 * Protected by fbs_lock. Note that the fbs list holds a reference on 514 * the fb object to prevent it from untimely disappearing. 515 */ 516 struct list_head fbs; 517 struct lock fbs_lock; 518 519 /** User-created blob properties; this retains a reference on the 520 * property. */ 521 struct list_head blobs; 522 523 wait_queue_head_t event_wait; 524 struct list_head pending_event_list; 525 struct list_head event_list; 526 int event_space; 527 528 struct lock event_read_lock; 529 530 struct drm_prime_file_private prime; 531 532 #ifdef __DragonFly__ 533 struct drm_device *dev; 534 unsigned long ioctl_count; 535 struct kqinfo dkq; 536 #endif 537 }; 538 539 /** 540 * Lock data. 541 */ 542 struct drm_lock_data { 543 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 544 /** Private of lock holder's file (NULL=kernel) */ 545 struct drm_file *file_priv; 546 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 547 unsigned long lock_time; /**< Time of last lock in jiffies */ 548 spinlock_t spinlock; 549 uint32_t kernel_waiters; 550 uint32_t user_waiters; 551 int idle_has_lock; 552 }; 553 554 /** 555 * GEM specific mm private for tracking GEM objects 556 */ 557 struct drm_gem_mm { 558 struct drm_vma_offset_manager vma_manager; 559 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */ 560 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 561 struct unrhdr *idxunr; 562 }; 563 564 /* Flags and return codes for get_vblank_timestamp() driver function. */ 565 #define DRM_CALLED_FROM_VBLIRQ 1 566 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) 567 #define DRM_VBLANKTIME_IN_VBLANK (1 << 1) 568 569 /* get_scanout_position() return flags */ 570 #define DRM_SCANOUTPOS_VALID (1 << 0) 571 #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1) 572 #define DRM_SCANOUTPOS_ACCURATE (1 << 2) 573 574 /** 575 * DRM driver structure. This structure represent the common code for 576 * a family of cards. There will one drm_device for each card present 577 * in this family 578 */ 579 struct drm_driver { 580 int (*load) (struct drm_device *, unsigned long flags); 581 int (*firstopen) (struct drm_device *); 582 int (*open) (struct drm_device *, struct drm_file *); 583 void (*preclose) (struct drm_device *, struct drm_file *file_priv); 584 void (*postclose) (struct drm_device *, struct drm_file *); 585 void (*lastclose) (struct drm_device *); 586 int (*unload) (struct drm_device *); 587 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); 588 int (*dma_quiescent) (struct drm_device *); 589 int (*context_dtor) (struct drm_device *dev, int context); 590 int (*set_busid)(struct drm_device *dev, struct drm_master *master); 591 592 /** 593 * get_vblank_counter - get raw hardware vblank counter 594 * @dev: DRM device 595 * @pipe: counter to fetch 596 * 597 * Driver callback for fetching a raw hardware vblank counter for @crtc. 598 * If a device doesn't have a hardware counter, the driver can simply 599 * use drm_vblank_no_hw_counter() function. The DRM core will account for 600 * missed vblank events while interrupts where disabled based on system 601 * timestamps. 602 * 603 * Wraparound handling and loss of events due to modesetting is dealt 604 * with in the DRM core code. 605 * 606 * RETURNS 607 * Raw vblank counter value. 608 */ 609 u32 (*get_vblank_counter) (struct drm_device *dev, unsigned int pipe); 610 611 /** 612 * enable_vblank - enable vblank interrupt events 613 * @dev: DRM device 614 * @pipe: which irq to enable 615 * 616 * Enable vblank interrupts for @crtc. If the device doesn't have 617 * a hardware vblank counter, the driver should use the 618 * drm_vblank_no_hw_counter() function that keeps a virtual counter. 619 * 620 * RETURNS 621 * Zero on success, appropriate errno if the given @crtc's vblank 622 * interrupt cannot be enabled. 623 */ 624 int (*enable_vblank) (struct drm_device *dev, unsigned int pipe); 625 626 /** 627 * disable_vblank - disable vblank interrupt events 628 * @dev: DRM device 629 * @pipe: which irq to enable 630 * 631 * Disable vblank interrupts for @crtc. If the device doesn't have 632 * a hardware vblank counter, the driver should use the 633 * drm_vblank_no_hw_counter() function that keeps a virtual counter. 634 */ 635 void (*disable_vblank) (struct drm_device *dev, unsigned int pipe); 636 637 /** 638 * Called by \c drm_device_is_agp. Typically used to determine if a 639 * card is really attached to AGP or not. 640 * 641 * \param dev DRM device handle 642 * 643 * \returns 644 * One of three values is returned depending on whether or not the 645 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 646 * (return of 1), or may or may not be AGP (return of 2). 647 */ 648 int (*device_is_agp) (struct drm_device *dev); 649 650 /** 651 * Called by vblank timestamping code. 652 * 653 * Return the current display scanout position from a crtc, and an 654 * optional accurate ktime_get timestamp of when position was measured. 655 * 656 * \param dev DRM device. 657 * \param pipe Id of the crtc to query. 658 * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). 659 * \param *vpos Target location for current vertical scanout position. 660 * \param *hpos Target location for current horizontal scanout position. 661 * \param *stime Target location for timestamp taken immediately before 662 * scanout position query. Can be NULL to skip timestamp. 663 * \param *etime Target location for timestamp taken immediately after 664 * scanout position query. Can be NULL to skip timestamp. 665 * \param mode Current display timings. 666 * 667 * Returns vpos as a positive number while in active scanout area. 668 * Returns vpos as a negative number inside vblank, counting the number 669 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 670 * until start of active scanout / end of vblank." 671 * 672 * \return Flags, or'ed together as follows: 673 * 674 * DRM_SCANOUTPOS_VALID = Query successful. 675 * DRM_SCANOUTPOS_INVBL = Inside vblank. 676 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 677 * this flag means that returned position may be offset by a constant 678 * but unknown small number of scanlines wrt. real scanout position. 679 * 680 */ 681 int (*get_scanout_position) (struct drm_device *dev, unsigned int pipe, 682 unsigned int flags, int *vpos, int *hpos, 683 ktime_t *stime, ktime_t *etime, 684 const struct drm_display_mode *mode); 685 686 /** 687 * Called by \c drm_get_last_vbltimestamp. Should return a precise 688 * timestamp when the most recent VBLANK interval ended or will end. 689 * 690 * Specifically, the timestamp in @vblank_time should correspond as 691 * closely as possible to the time when the first video scanline of 692 * the video frame after the end of VBLANK will start scanning out, 693 * the time immediately after end of the VBLANK interval. If the 694 * @crtc is currently inside VBLANK, this will be a time in the future. 695 * If the @crtc is currently scanning out a frame, this will be the 696 * past start time of the current scanout. This is meant to adhere 697 * to the OpenML OML_sync_control extension specification. 698 * 699 * \param dev dev DRM device handle. 700 * \param pipe crtc for which timestamp should be returned. 701 * \param *max_error Maximum allowable timestamp error in nanoseconds. 702 * Implementation should strive to provide timestamp 703 * with an error of at most *max_error nanoseconds. 704 * Returns true upper bound on error for timestamp. 705 * \param *vblank_time Target location for returned vblank timestamp. 706 * \param flags 0 = Defaults, no special treatment needed. 707 * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank 708 * irq handler. Some drivers need to apply some workarounds 709 * for gpu-specific vblank irq quirks if flag is set. 710 * 711 * \returns 712 * Zero if timestamping isn't supported in current display mode or a 713 * negative number on failure. A positive status code on success, 714 * which describes how the vblank_time timestamp was computed. 715 */ 716 int (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe, 717 int *max_error, 718 struct timeval *vblank_time, 719 unsigned flags); 720 721 /* these have to be filled in */ 722 723 irqreturn_t(*irq_handler) (int irq, void *arg); 724 void (*irq_preinstall) (struct drm_device *dev); 725 int (*irq_postinstall) (struct drm_device *dev); 726 void (*irq_uninstall) (struct drm_device *dev); 727 728 /* Master routines */ 729 int (*master_create)(struct drm_device *dev, struct drm_master *master); 730 void (*master_destroy)(struct drm_device *dev, struct drm_master *master); 731 /** 732 * master_set is called whenever the minor master is set. 733 * master_drop is called whenever the minor master is dropped. 734 */ 735 736 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, 737 bool from_open); 738 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv); 739 740 int (*debugfs_init)(struct drm_minor *minor); 741 void (*debugfs_cleanup)(struct drm_minor *minor); 742 743 /** 744 * @gem_free_object: deconstructor for drm_gem_objects 745 * 746 * This is deprecated and should not be used by new drivers. Use 747 * @gem_free_object_unlocked instead. 748 */ 749 void (*gem_free_object) (struct drm_gem_object *obj); 750 751 /** 752 * @gem_free_object_unlocked: deconstructor for drm_gem_objects 753 * 754 * This is for drivers which are not encumbered with dev->struct_mutex 755 * legacy locking schemes. Use this hook instead of @gem_free_object. 756 */ 757 void (*gem_free_object_unlocked) (struct drm_gem_object *obj); 758 759 int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); 760 void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); 761 762 /** 763 * Hook for allocating the GEM object struct, for use by core 764 * helpers. 765 */ 766 struct drm_gem_object *(*gem_create_object)(struct drm_device *dev, 767 size_t size); 768 769 /* prime: */ 770 /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */ 771 int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv, 772 uint32_t handle, uint32_t flags, int *prime_fd); 773 /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */ 774 int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv, 775 int prime_fd, uint32_t *handle); 776 /* export GEM -> dmabuf */ 777 struct dma_buf * (*gem_prime_export)(struct drm_device *dev, 778 struct drm_gem_object *obj, int flags); 779 /* import dmabuf -> GEM */ 780 struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev, 781 struct dma_buf *dma_buf); 782 /* low-level interface used by drm_gem_prime_{import,export} */ 783 int (*gem_prime_pin)(struct drm_gem_object *obj); 784 void (*gem_prime_unpin)(struct drm_gem_object *obj); 785 struct reservation_object * (*gem_prime_res_obj)( 786 struct drm_gem_object *obj); 787 struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj); 788 struct drm_gem_object *(*gem_prime_import_sg_table)( 789 struct drm_device *dev, 790 struct dma_buf_attachment *attach, 791 struct sg_table *sgt); 792 void *(*gem_prime_vmap)(struct drm_gem_object *obj); 793 void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr); 794 int (*gem_prime_mmap)(struct drm_gem_object *obj, 795 struct vm_area_struct *vma); 796 797 /* vga arb irq handler */ 798 void (*vgaarb_irq)(struct drm_device *dev, bool state); 799 800 /* dumb alloc support */ 801 int (*dumb_create)(struct drm_file *file_priv, 802 struct drm_device *dev, 803 struct drm_mode_create_dumb *args); 804 int (*dumb_map_offset)(struct drm_file *file_priv, 805 struct drm_device *dev, uint32_t handle, 806 uint64_t *offset); 807 int (*dumb_destroy)(struct drm_file *file_priv, 808 struct drm_device *dev, 809 uint32_t handle); 810 811 /* Driver private ops for this object */ 812 struct cdev_pager_ops *gem_vm_ops; 813 814 int major; 815 int minor; 816 int patchlevel; 817 char *name; 818 char *desc; 819 char *date; 820 821 u32 driver_features; 822 int dev_priv_size; 823 const struct drm_ioctl_desc *ioctls; 824 int num_ioctls; 825 const struct file_operations *fops; 826 827 /* List of devices hanging off this driver with stealth attach. */ 828 struct list_head legacy_dev_list; 829 #ifdef __DragonFly__ 830 int (*sysctl_init) (struct drm_device *dev, 831 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 832 void (*sysctl_cleanup) (struct drm_device *dev); 833 #endif /* __DragonFly__ */ 834 }; 835 836 enum drm_minor_type { 837 DRM_MINOR_PRIMARY, 838 DRM_MINOR_CONTROL, 839 DRM_MINOR_RENDER, 840 DRM_MINOR_CNT, 841 }; 842 843 /** 844 * Info file list entry. This structure represents a debugfs or proc file to 845 * be created by the drm core 846 */ 847 struct drm_info_list { 848 const char *name; /** file name */ 849 int (*show)(struct seq_file*, void*); /** show callback */ 850 u32 driver_features; /**< Required driver features for this entry */ 851 void *data; 852 }; 853 854 /** 855 * debugfs node structure. This structure represents a debugfs file. 856 */ 857 struct drm_info_node { 858 struct list_head list; 859 struct drm_minor *minor; 860 const struct drm_info_list *info_ent; 861 struct dentry *dent; 862 }; 863 864 /** 865 * DRM minor structure. This structure represents a drm minor number. 866 */ 867 struct drm_minor { 868 int index; /**< Minor device number */ 869 int type; /**< Control or render */ 870 struct device *kdev; /**< Linux device */ 871 struct drm_device *dev; 872 873 struct dentry *debugfs_root; 874 875 struct list_head debugfs_list; 876 struct lock debugfs_lock; /* Protects debugfs_list. */ 877 }; 878 879 struct drm_sysctl_info { 880 struct sysctl_ctx_list ctx; 881 char name[2]; 882 }; 883 884 /* Length for the array of resource pointers for drm_get_resource_*. */ 885 #define DRM_MAX_PCI_RESOURCE 6 886 887 /** 888 * DRM device structure. This structure represent a complete card that 889 * may contain multiple heads. 890 */ 891 struct drm_device { 892 struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */ 893 int if_version; /**< Highest interface version set */ 894 895 /** \name Lifetime Management */ 896 /*@{ */ 897 struct kref ref; /**< Object ref-count */ 898 struct device *dev; /**< Device structure of bus-device */ 899 struct drm_driver *driver; /**< DRM driver managing the device */ 900 void *dev_private; /**< DRM driver private data */ 901 struct drm_minor *control; /**< Control node */ 902 struct drm_minor *primary; /**< Primary node */ 903 struct drm_minor *render; /**< Render node */ 904 905 /* currently active master for this device. Protected by master_mutex */ 906 struct drm_master *master; 907 908 atomic_t unplugged; /**< Flag whether dev is dead */ 909 struct inode *anon_inode; /**< inode for private address-space */ 910 char *unique; /**< unique name of the device */ 911 /*@} */ 912 913 /** \name Locks */ 914 /*@{ */ 915 struct lock struct_mutex; /**< For others */ 916 struct lock master_mutex; /**< For drm_minor::master and drm_file::is_master */ 917 /*@} */ 918 919 /** \name Usage Counters */ 920 /*@{ */ 921 int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ 922 spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */ 923 int buf_use; /**< Buffers in use -- cannot alloc */ 924 atomic_t buf_alloc; /**< Buffer allocation in progress */ 925 /*@} */ 926 927 struct lock filelist_mutex; 928 struct list_head filelist; 929 930 /** \name Memory management */ 931 /*@{ */ 932 struct list_head maplist; /**< Linked list of regions */ 933 struct drm_open_hash map_hash; /**< User token hash table for maps */ 934 935 /** \name Context handle management */ 936 /*@{ */ 937 struct list_head ctxlist; /**< Linked list of context handles */ 938 struct lock ctxlist_mutex; /**< For ctxlist */ 939 940 struct idr ctx_idr; 941 942 struct list_head vmalist; /**< List of vmas (for debugging) */ 943 944 /*@} */ 945 946 struct drm_lock_data lock; /* Information on hardware lock */ 947 948 /** \name DMA support */ 949 /*@{ */ 950 struct drm_device_dma *dma; /**< Optional pointer for DMA support */ 951 /*@} */ 952 953 /** \name Context support */ 954 /*@{ */ 955 956 __volatile__ long context_flag; /**< Context swapping flag */ 957 int last_context; /**< Last current context */ 958 /*@} */ 959 960 /** \name VBLANK IRQ support */ 961 /*@{ */ 962 bool irq_enabled; 963 int irq; 964 965 /* 966 * If true, vblank interrupt will be disabled immediately when the 967 * refcount drops to zero, as opposed to via the vblank disable 968 * timer. 969 * This can be set to true it the hardware has a working vblank 970 * counter and the driver uses drm_vblank_on() and drm_vblank_off() 971 * appropriately. 972 */ 973 bool vblank_disable_immediate; 974 975 /* array of size num_crtcs */ 976 struct drm_vblank_crtc *vblank; 977 978 struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ 979 struct lock vbl_lock; 980 981 u32 max_vblank_count; /**< size of vblank counter register */ 982 983 /** 984 * List of events 985 */ 986 struct list_head vblank_event_list; 987 struct lock event_lock; 988 989 /*@} */ 990 991 struct drm_agp_head *agp; /**< AGP data */ 992 993 struct pci_dev *pdev; /**< PCI device structure */ 994 #ifdef __alpha__ 995 struct pci_controller *hose; 996 #endif 997 998 struct platform_device *platformdev; /**< Platform device struture */ 999 struct virtio_device *virtdev; 1000 1001 struct drm_sg_mem *sg; /**< Scatter gather memory */ 1002 unsigned int num_crtcs; /**< Number of CRTCs on this device */ 1003 1004 struct { 1005 int context; 1006 struct drm_hw_lock *lock; 1007 } sigdata; 1008 1009 struct drm_local_map *agp_buffer_map; 1010 unsigned int agp_buffer_token; 1011 1012 struct drm_mode_config mode_config; /**< Current mode config */ 1013 1014 /** \name GEM information */ 1015 /*@{ */ 1016 struct lock object_name_lock; 1017 struct idr object_name_idr; 1018 struct drm_vma_offset_manager *vma_offset_manager; 1019 /*@} */ 1020 int switch_power_state; 1021 #ifdef __DragonFly__ 1022 /* Storage of resource pointers for drm_get_resource_* */ 1023 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 1024 int pcirid[DRM_MAX_PCI_RESOURCE]; 1025 1026 int pci_domain; 1027 int pci_bus; 1028 int pci_slot; 1029 int pci_func; 1030 char busid_str[128]; 1031 int modesetting; 1032 void *mm_private; 1033 struct drm_sysctl_info *sysctl; 1034 1035 struct idr magic_map; 1036 1037 int unique_len; /* Length of unique field */ 1038 struct cdev *devnode; /* Device number for mknod */ 1039 1040 struct lwkt_serialize irq_lock; /* protects irq condition checks */ 1041 1042 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 1043 void *drm_ttm_bdev; 1044 #endif 1045 }; 1046 1047 #include <drm/drm_irq.h> 1048 1049 #define DRM_SWITCH_POWER_ON 0 1050 #define DRM_SWITCH_POWER_OFF 1 1051 #define DRM_SWITCH_POWER_CHANGING 2 1052 #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 1053 1054 static __inline__ int drm_core_check_feature(struct drm_device *dev, 1055 int feature) 1056 { 1057 return ((dev->driver->driver_features & feature) ? 1 : 0); 1058 } 1059 1060 static inline void drm_device_set_unplugged(struct drm_device *dev) 1061 { 1062 smp_wmb(); 1063 atomic_set(&dev->unplugged, 1); 1064 } 1065 1066 static inline int drm_device_is_unplugged(struct drm_device *dev) 1067 { 1068 int ret = atomic_read(&dev->unplugged); 1069 smp_rmb(); 1070 return ret; 1071 } 1072 1073 static inline bool drm_is_render_client(const struct drm_file *file_priv) 1074 { 1075 return file_priv->minor->type == DRM_MINOR_RENDER; 1076 } 1077 1078 static inline bool drm_is_control_client(const struct drm_file *file_priv) 1079 { 1080 return file_priv->minor->type == DRM_MINOR_CONTROL; 1081 } 1082 1083 static inline bool drm_is_primary_client(const struct drm_file *file_priv) 1084 { 1085 return file_priv->minor->type == DRM_MINOR_PRIMARY; 1086 } 1087 1088 /******************************************************************/ 1089 /** \name Internal function definitions */ 1090 /*@{*/ 1091 1092 /* Driver support (drm_drv.h) */ 1093 extern int drm_ioctl_permit(u32 flags, struct drm_file *file_priv); 1094 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); 1095 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); 1096 int drm_create_cdevs(device_t kdev); 1097 d_ioctl_t drm_ioctl; 1098 extern long drm_compat_ioctl(struct file *filp, 1099 unsigned int cmd, unsigned long arg); 1100 extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags); 1101 1102 /* File Operations (drm_fops.c) */ 1103 d_open_t drm_open; 1104 d_close_t drm_close; 1105 d_read_t drm_read; 1106 int drm_release(struct inode *inode, struct file *filp); 1107 1108 /* DragonFly driver framework */ 1109 #ifdef __DragonFly__ 1110 d_kqfilter_t drm_kqfilter; 1111 d_mmap_t drm_mmap; 1112 d_mmap_single_t drm_mmap_single; 1113 1114 int drm_device_detach(device_t kdev); 1115 #endif 1116 1117 void drm_cdevpriv_dtor(void *cd); 1118 1119 int drm_add_busid_modesetting(struct drm_device *dev, 1120 struct sysctl_ctx_list *ctx, struct sysctl_oid *top); 1121 1122 unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); 1123 int drm_event_reserve_init_locked(struct drm_device *dev, 1124 struct drm_file *file_priv, 1125 struct drm_pending_event *p, 1126 struct drm_event *e); 1127 int drm_event_reserve_init(struct drm_device *dev, 1128 struct drm_file *file_priv, 1129 struct drm_pending_event *p, 1130 struct drm_event *e); 1131 void drm_event_cancel_free(struct drm_device *dev, 1132 struct drm_pending_event *p); 1133 void drm_send_event_locked(struct drm_device *dev, struct drm_pending_event *e); 1134 void drm_send_event(struct drm_device *dev, struct drm_pending_event *e); 1135 1136 /* Misc. IOCTL support (drm_ioctl.c) */ 1137 int drm_noop(struct drm_device *dev, void *data, 1138 struct drm_file *file_priv); 1139 int drm_invalid_op(struct drm_device *dev, void *data, 1140 struct drm_file *file_priv); 1141 1142 /* Cache management (drm_cache.c) */ 1143 void drm_clflush_pages(struct page *pages[], unsigned long num_pages); 1144 void drm_clflush_sg(struct sg_table *st); 1145 void drm_clflush_virt_range(void *addr, unsigned long length); 1146 1147 /* 1148 * These are exported to drivers so that they can implement fencing using 1149 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1150 */ 1151 1152 /* Modesetting support */ 1153 extern void drm_vblank_pre_modeset(struct drm_device *dev, unsigned int pipe); 1154 extern void drm_vblank_post_modeset(struct drm_device *dev, unsigned int pipe); 1155 1156 /* drm_drv.c */ 1157 void drm_put_dev(struct drm_device *dev); 1158 void drm_unplug_dev(struct drm_device *dev); 1159 extern unsigned int drm_debug; 1160 1161 /* Debugfs support */ 1162 #if defined(CONFIG_DEBUG_FS) 1163 extern int drm_debugfs_create_files(const struct drm_info_list *files, 1164 int count, struct dentry *root, 1165 struct drm_minor *minor); 1166 extern int drm_debugfs_remove_files(const struct drm_info_list *files, 1167 int count, struct drm_minor *minor); 1168 #else 1169 static inline int drm_debugfs_create_files(const struct drm_info_list *files, 1170 int count, struct dentry *root, 1171 struct drm_minor *minor) 1172 { 1173 return 0; 1174 } 1175 1176 static inline int drm_debugfs_remove_files(const struct drm_info_list *files, 1177 int count, struct drm_minor *minor) 1178 { 1179 return 0; 1180 } 1181 #endif 1182 1183 struct dma_buf_export_info; 1184 1185 extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev, 1186 struct drm_gem_object *obj, 1187 int flags); 1188 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, 1189 struct drm_file *file_priv, uint32_t handle, uint32_t flags, 1190 int *prime_fd); 1191 extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, 1192 struct dma_buf *dma_buf); 1193 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, 1194 struct drm_file *file_priv, int prime_fd, uint32_t *handle); 1195 struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev, 1196 struct dma_buf_export_info *exp_info); 1197 extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf); 1198 1199 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages, 1200 dma_addr_t *addrs, int max_pages); 1201 extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages); 1202 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); 1203 1204 1205 extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size, 1206 size_t align); 1207 extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah); 1208 1209 /* sysfs support (drm_sysfs.c) */ 1210 extern void drm_sysfs_hotplug_event(struct drm_device *dev); 1211 1212 1213 /* XXX glue logic, should be done in drm_pci_init(), pending drm update */ 1214 void drm_init_pdev(device_t dev, struct pci_dev **pdev); 1215 void drm_fini_pdev(struct pci_dev **pdev); 1216 void drm_print_pdev(struct pci_dev *pdev); 1217 1218 struct drm_device *drm_dev_alloc(struct drm_driver *driver, 1219 struct device *parent); 1220 int drm_dev_init(struct drm_device *dev, 1221 struct drm_driver *driver, 1222 struct device *parent); 1223 void drm_dev_ref(struct drm_device *dev); 1224 void drm_dev_unref(struct drm_device *dev); 1225 int drm_dev_register(struct drm_device *dev, unsigned long flags); 1226 void drm_dev_unregister(struct drm_device *dev); 1227 1228 struct drm_minor *drm_minor_acquire(unsigned int minor_id); 1229 void drm_minor_release(struct drm_minor *minor); 1230 1231 /*@}*/ 1232 1233 /* PCI section */ 1234 static __inline__ int drm_pci_device_is_agp(struct drm_device *dev) 1235 { 1236 if (dev->driver->device_is_agp != NULL) { 1237 int err = (*dev->driver->device_is_agp) (dev); 1238 1239 if (err != 2) { 1240 return err; 1241 } 1242 } 1243 1244 return (pci_find_extcap(dev->pdev->dev.bsddev, PCIY_AGP, NULL) == 0); 1245 } 1246 void drm_pci_agp_destroy(struct drm_device *dev); 1247 1248 extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver); 1249 extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver); 1250 #ifdef CONFIG_PCI 1251 extern int drm_get_pci_dev(struct pci_dev *pdev, 1252 const struct pci_device_id *ent, 1253 struct drm_driver *driver); 1254 extern int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); 1255 #else 1256 static inline int drm_get_pci_dev(struct pci_dev *pdev, 1257 const struct pci_device_id *ent, 1258 struct drm_driver *driver) 1259 { 1260 return -ENOSYS; 1261 } 1262 1263 static inline int drm_pci_set_busid(struct drm_device *dev, 1264 struct drm_master *master) 1265 { 1266 return -ENOSYS; 1267 } 1268 #endif 1269 1270 #define DRM_PCIE_SPEED_25 1 1271 #define DRM_PCIE_SPEED_50 2 1272 #define DRM_PCIE_SPEED_80 4 1273 1274 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); 1275 extern int drm_pcie_get_max_link_width(struct drm_device *dev, u32 *mlw); 1276 1277 /* platform section */ 1278 extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device); 1279 1280 /* returns true if currently okay to sleep */ 1281 static __inline__ bool drm_can_sleep(void) 1282 { 1283 if (in_atomic() || in_dbg_master() || irqs_disabled()) 1284 return false; 1285 return true; 1286 } 1287 1288 /* helper for handling conditionals in various for_each macros */ 1289 #define for_each_if(condition) if (!(condition)) {} else 1290 1291 #ifdef __DragonFly__ 1292 struct drm_softc { 1293 void *drm_driver_data; 1294 }; 1295 1296 /* sysctl support (drm_sysctl.h) */ 1297 extern int drm_sysctl_init(struct drm_device *dev); 1298 extern int drm_sysctl_cleanup(struct drm_device *dev); 1299 1300 unsigned long drm_get_resource_start(struct drm_device *dev, 1301 unsigned int resource); 1302 unsigned long drm_get_resource_len(struct drm_device *dev, 1303 unsigned int resource); 1304 1305 int ttm_bo_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1306 vm_size_t size, struct vm_object **obj_res, int nprot); 1307 1308 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, 1309 vm_size_t size, struct vm_object **obj_res, int nprot); 1310 1311 /* XXX: These are here only because of drm_sysctl.c */ 1312 extern int drm_vblank_offdelay; 1313 extern unsigned int drm_timestamp_precision; 1314 #endif 1315 1316 #endif 1317