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 35#ifndef _DRM_P_H_ 36#define _DRM_P_H_ 37 38#ifdef __KERNEL__ 39#ifdef __alpha__ 40/* add include of current.h so that "current" is defined 41 * before static inline funcs in wait.h. Doing this so we 42 * can build the DRM (part of PI DRI). 4/21/2000 S + B */ 43#include <asm/current.h> 44#endif /* __alpha__ */ 45#include <linux/module.h> 46#include <linux/kernel.h> 47#include <linux/miscdevice.h> 48#include <linux/fs.h> 49#include <linux/proc_fs.h> 50#include <linux/init.h> 51#include <linux/file.h> 52#include <linux/platform_device.h> 53#include <linux/pci.h> 54#include <linux/jiffies.h> 55#include <linux/dma-mapping.h> 56#include <linux/mm.h> 57#include <linux/cdev.h> 58#include <linux/mutex.h> 59#include <linux/slab.h> 60#if defined(__alpha__) || defined(__powerpc__) 61#include <asm/pgtable.h> /* For pte_wrprotect */ 62#endif 63#include <asm/io.h> 64#include <asm/mman.h> 65#include <asm/uaccess.h> 66#ifdef CONFIG_MTRR 67#include <asm/mtrr.h> 68#endif 69#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) 70#include <linux/types.h> 71#include <linux/agp_backend.h> 72#endif 73#include <linux/workqueue.h> 74#include <linux/poll.h> 75#include <asm/pgalloc.h> 76#include "drm.h" 77 78#include <linux/idr.h> 79 80#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))) 81#define __OS_HAS_MTRR (defined(CONFIG_MTRR)) 82 83struct drm_file; 84struct drm_device; 85 86#include "drm_os_linux.h" 87#include "drm_hashtab.h" 88#include "drm_mm.h" 89 90#define DRM_UT_CORE 0x01 91#define DRM_UT_DRIVER 0x02 92#define DRM_UT_KMS 0x04 93/* 94 * Three debug levels are defined. 95 * drm_core, drm_driver, drm_kms 96 * drm_core level can be used in the generic drm code. For example: 97 * drm_ioctl, drm_mm, drm_memory 98 * The macro definiton of DRM_DEBUG is used. 99 * DRM_DEBUG(fmt, args...) 100 * The debug info by using the DRM_DEBUG can be obtained by adding 101 * the boot option of "drm.debug=1". 102 * 103 * drm_driver level can be used in the specific drm driver. It is used 104 * to add the debug info related with the drm driver. For example: 105 * i915_drv, i915_dma, i915_gem, radeon_drv, 106 * The macro definition of DRM_DEBUG_DRIVER can be used. 107 * DRM_DEBUG_DRIVER(fmt, args...) 108 * The debug info by using the DRM_DEBUG_DRIVER can be obtained by 109 * adding the boot option of "drm.debug=0x02" 110 * 111 * drm_kms level can be used in the KMS code related with specific drm driver. 112 * It is used to add the debug info related with KMS mode. For example: 113 * the connector/crtc , 114 * The macro definition of DRM_DEBUG_KMS can be used. 115 * DRM_DEBUG_KMS(fmt, args...) 116 * The debug info by using the DRM_DEBUG_KMS can be obtained by 117 * adding the boot option of "drm.debug=0x04" 118 * 119 * If we add the boot option of "drm.debug=0x06", we can get the debug info by 120 * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER. 121 * If we add the boot option of "drm.debug=0x05", we can get the debug info by 122 * using the DRM_DEBUG_KMS and DRM_DEBUG. 123 */ 124 125extern void drm_ut_debug_printk(unsigned int request_level, 126 const char *prefix, 127 const char *function_name, 128 const char *format, ...); 129/***********************************************************************/ 130/** \name DRM template customization defaults */ 131/*@{*/ 132 133/* driver capabilities and requirements mask */ 134#define DRIVER_USE_AGP 0x1 135#define DRIVER_REQUIRE_AGP 0x2 136#define DRIVER_USE_MTRR 0x4 137#define DRIVER_PCI_DMA 0x8 138#define DRIVER_SG 0x10 139#define DRIVER_HAVE_DMA 0x20 140#define DRIVER_HAVE_IRQ 0x40 141#define DRIVER_IRQ_SHARED 0x80 142#define DRIVER_IRQ_VBL 0x100 143#define DRIVER_DMA_QUEUE 0x200 144#define DRIVER_FB_DMA 0x400 145#define DRIVER_IRQ_VBL2 0x800 146#define DRIVER_GEM 0x1000 147#define DRIVER_MODESET 0x2000 148#define DRIVER_USE_PLATFORM_DEVICE 0x4000 149 150/***********************************************************************/ 151/** \name Begin the DRM... */ 152/*@{*/ 153 154#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then 155 also include looping detection. */ 156 157#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ 158#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */ 159#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */ 160#define DRM_LOOPING_LIMIT 5000000 161#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */ 162#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */ 163 164#define DRM_FLAG_DEBUG 0x01 165 166#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 167#define DRM_MAP_HASH_OFFSET 0x10000000 168 169/*@}*/ 170 171/***********************************************************************/ 172/** \name Macros to make printk easier */ 173/*@{*/ 174 175/** 176 * Error output. 177 * 178 * \param fmt printf() like format string. 179 * \param arg arguments 180 */ 181#define DRM_ERROR(fmt, arg...) \ 182 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ##arg) 183 184/** 185 * Memory error output. 186 * 187 * \param area memory area where the error occurred. 188 * \param fmt printf() like format string. 189 * \param arg arguments 190 */ 191#define DRM_MEM_ERROR(area, fmt, arg...) \ 192 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __func__, \ 193 drm_mem_stats[area].name , ##arg) 194 195#define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg) 196 197/** 198 * Debug output. 199 * 200 * \param fmt printf() like format string. 201 * \param arg arguments 202 */ 203#if DRM_DEBUG_CODE 204#define DRM_DEBUG(fmt, args...) \ 205 do { \ 206 drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \ 207 __func__, fmt, ##args); \ 208 } while (0) 209 210#define DRM_DEBUG_DRIVER(fmt, args...) \ 211 do { \ 212 drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \ 213 __func__, fmt, ##args); \ 214 } while (0) 215#define DRM_DEBUG_KMS(fmt, args...) \ 216 do { \ 217 drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \ 218 __func__, fmt, ##args); \ 219 } while (0) 220#define DRM_LOG(fmt, args...) \ 221 do { \ 222 drm_ut_debug_printk(DRM_UT_CORE, NULL, \ 223 NULL, fmt, ##args); \ 224 } while (0) 225#define DRM_LOG_KMS(fmt, args...) \ 226 do { \ 227 drm_ut_debug_printk(DRM_UT_KMS, NULL, \ 228 NULL, fmt, ##args); \ 229 } while (0) 230#define DRM_LOG_MODE(fmt, args...) \ 231 do { \ 232 drm_ut_debug_printk(DRM_UT_MODE, NULL, \ 233 NULL, fmt, ##args); \ 234 } while (0) 235#define DRM_LOG_DRIVER(fmt, args...) \ 236 do { \ 237 drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \ 238 NULL, fmt, ##args); \ 239 } while (0) 240#else 241#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0) 242#define DRM_DEBUG_KMS(fmt, args...) do { } while (0) 243#define DRM_DEBUG(fmt, arg...) do { } while (0) 244#define DRM_LOG(fmt, arg...) do { } while (0) 245#define DRM_LOG_KMS(fmt, args...) do { } while (0) 246#define DRM_LOG_MODE(fmt, arg...) do { } while (0) 247#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0) 248 249#endif 250 251/*@}*/ 252 253/***********************************************************************/ 254/** \name Internal types and structures */ 255/*@{*/ 256 257#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x) 258 259#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1)) 260#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x)) 261 262#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 263 264/** 265 * Test that the hardware lock is held by the caller, returning otherwise. 266 * 267 * \param dev DRM device. 268 * \param filp file pointer of the caller. 269 */ 270#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \ 271do { \ 272 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \ 273 _file_priv->master->lock.file_priv != _file_priv) { \ 274 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\ 275 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\ 276 _file_priv->master->lock.file_priv, _file_priv); \ 277 return -EINVAL; \ 278 } \ 279} while (0) 280 281/** 282 * Ioctl function type. 283 * 284 * \param inode device inode. 285 * \param file_priv DRM file private pointer. 286 * \param cmd command. 287 * \param arg argument. 288 */ 289typedef int drm_ioctl_t(struct drm_device *dev, void *data, 290 struct drm_file *file_priv); 291 292typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, 293 unsigned long arg); 294 295#define DRM_IOCTL_NR(n) _IOC_NR(n) 296#define DRM_MAJOR 226 297 298#define DRM_AUTH 0x1 299#define DRM_MASTER 0x2 300#define DRM_ROOT_ONLY 0x4 301#define DRM_CONTROL_ALLOW 0x8 302#define DRM_UNLOCKED 0x10 303 304struct drm_ioctl_desc { 305 unsigned int cmd; 306 int flags; 307 drm_ioctl_t *func; 308 unsigned int cmd_drv; 309}; 310 311/** 312 * Creates a driver or general drm_ioctl_desc array entry for the given 313 * ioctl, for use by drm_ioctl(). 314 */ 315 316#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ 317 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} 318 319struct drm_magic_entry { 320 struct list_head head; 321 struct drm_hash_item hash_item; 322 struct drm_file *priv; 323}; 324 325struct drm_vma_entry { 326 struct list_head head; 327 struct vm_area_struct *vma; 328 pid_t pid; 329}; 330 331/** 332 * DMA buffer. 333 */ 334struct drm_buf { 335 int idx; /**< Index into master buflist */ 336 int total; /**< Buffer size */ 337 int order; /**< log-base-2(total) */ 338 int used; /**< Amount of buffer in use (for DMA) */ 339 unsigned long offset; /**< Byte offset (used internally) */ 340 void *address; /**< Address of buffer */ 341 unsigned long bus_address; /**< Bus address of buffer */ 342 struct drm_buf *next; /**< Kernel-only: used for free list */ 343 __volatile__ int waiting; /**< On kernel DMA queue */ 344 __volatile__ int pending; /**< On hardware DMA queue */ 345 wait_queue_head_t dma_wait; /**< Processes waiting */ 346 struct drm_file *file_priv; /**< Private of holding file descr */ 347 int context; /**< Kernel queue for this buffer */ 348 int while_locked; /**< Dispatch this buffer while locked */ 349 enum { 350 DRM_LIST_NONE = 0, 351 DRM_LIST_FREE = 1, 352 DRM_LIST_WAIT = 2, 353 DRM_LIST_PEND = 3, 354 DRM_LIST_PRIO = 4, 355 DRM_LIST_RECLAIM = 5 356 } list; /**< Which list we're on */ 357 358 int dev_priv_size; /**< Size of buffer private storage */ 359 void *dev_private; /**< Per-buffer private storage */ 360}; 361 362/** bufs is one longer than it has to be */ 363struct drm_waitlist { 364 int count; /**< Number of possible buffers */ 365 struct drm_buf **bufs; /**< List of pointers to buffers */ 366 struct drm_buf **rp; /**< Read pointer */ 367 struct drm_buf **wp; /**< Write pointer */ 368 struct drm_buf **end; /**< End pointer */ 369 spinlock_t read_lock; 370 spinlock_t write_lock; 371}; 372 373struct drm_freelist { 374 int initialized; /**< Freelist in use */ 375 atomic_t count; /**< Number of free buffers */ 376 struct drm_buf *next; /**< End pointer */ 377 378 wait_queue_head_t waiting; /**< Processes waiting on free bufs */ 379 int low_mark; /**< Low water mark */ 380 int high_mark; /**< High water mark */ 381 atomic_t wfh; /**< If waiting for high mark */ 382 spinlock_t lock; 383}; 384 385typedef struct drm_dma_handle { 386 dma_addr_t busaddr; 387 void *vaddr; 388 size_t size; 389} drm_dma_handle_t; 390 391/** 392 * Buffer entry. There is one of this for each buffer size order. 393 */ 394struct drm_buf_entry { 395 int buf_size; /**< size */ 396 int buf_count; /**< number of buffers */ 397 struct drm_buf *buflist; /**< buffer list */ 398 int seg_count; 399 int page_order; 400 struct drm_dma_handle **seglist; 401 402 struct drm_freelist freelist; 403}; 404 405/* Event queued up for userspace to read */ 406struct drm_pending_event { 407 struct drm_event *event; 408 struct list_head link; 409 struct drm_file *file_priv; 410 pid_t pid; /* pid of requester, no guarantee it's valid by the time 411 we deliver the event, for tracing only */ 412 void (*destroy)(struct drm_pending_event *event); 413}; 414 415/** File private data */ 416struct drm_file { 417 int authenticated; 418 pid_t pid; 419 uid_t uid; 420 drm_magic_t magic; 421 unsigned long ioctl_count; 422 struct list_head lhead; 423 struct drm_minor *minor; 424 unsigned long lock_count; 425 426 /** Mapping of mm object handles to object pointers. */ 427 struct idr object_idr; 428 /** Lock for synchronization of access to object_idr. */ 429 spinlock_t table_lock; 430 431 struct file *filp; 432 void *driver_priv; 433 434 int is_master; /* this file private is a master for a minor */ 435 struct drm_master *master; /* master this node is currently associated with 436 N.B. not always minor->master */ 437 struct list_head fbs; 438 439 wait_queue_head_t event_wait; 440 struct list_head event_list; 441 int event_space; 442}; 443 444/** Wait queue */ 445struct drm_queue { 446 atomic_t use_count; /**< Outstanding uses (+1) */ 447 atomic_t finalization; /**< Finalization in progress */ 448 atomic_t block_count; /**< Count of processes waiting */ 449 atomic_t block_read; /**< Queue blocked for reads */ 450 wait_queue_head_t read_queue; /**< Processes waiting on block_read */ 451 atomic_t block_write; /**< Queue blocked for writes */ 452 wait_queue_head_t write_queue; /**< Processes waiting on block_write */ 453 atomic_t total_queued; /**< Total queued statistic */ 454 atomic_t total_flushed; /**< Total flushes statistic */ 455 atomic_t total_locks; /**< Total locks statistics */ 456 enum drm_ctx_flags flags; /**< Context preserving and 2D-only */ 457 struct drm_waitlist waitlist; /**< Pending buffers */ 458 wait_queue_head_t flush_queue; /**< Processes waiting until flush */ 459}; 460 461/** 462 * Lock data. 463 */ 464struct drm_lock_data { 465 struct drm_hw_lock *hw_lock; /**< Hardware lock */ 466 /** Private of lock holder's file (NULL=kernel) */ 467 struct drm_file *file_priv; 468 wait_queue_head_t lock_queue; /**< Queue of blocked processes */ 469 unsigned long lock_time; /**< Time of last lock in jiffies */ 470 spinlock_t spinlock; 471 uint32_t kernel_waiters; 472 uint32_t user_waiters; 473 int idle_has_lock; 474}; 475 476/** 477 * DMA data. 478 */ 479struct drm_device_dma { 480 481 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ 482 int buf_count; /**< total number of buffers */ 483 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ 484 int seg_count; 485 int page_count; /**< number of pages */ 486 unsigned long *pagelist; /**< page list */ 487 unsigned long byte_count; 488 enum { 489 _DRM_DMA_USE_AGP = 0x01, 490 _DRM_DMA_USE_SG = 0x02, 491 _DRM_DMA_USE_FB = 0x04, 492 _DRM_DMA_USE_PCI_RO = 0x08 493 } flags; 494 495}; 496 497/** 498 * AGP memory entry. Stored as a doubly linked list. 499 */ 500struct drm_agp_mem { 501 unsigned long handle; /**< handle */ 502 DRM_AGP_MEM *memory; 503 unsigned long bound; /**< address */ 504 int pages; 505 struct list_head head; 506}; 507 508/** 509 * AGP data. 510 * 511 * \sa drm_agp_init() and drm_device::agp. 512 */ 513struct drm_agp_head { 514 DRM_AGP_KERN agp_info; /**< AGP device information */ 515 struct list_head memory; 516 unsigned long mode; /**< AGP mode */ 517 struct agp_bridge_data *bridge; 518 int enabled; /**< whether the AGP bus as been enabled */ 519 int acquired; /**< whether the AGP device has been acquired */ 520 unsigned long base; 521 int agp_mtrr; 522 int cant_use_aperture; 523 unsigned long page_mask; 524}; 525 526/** 527 * Scatter-gather memory. 528 */ 529struct drm_sg_mem { 530 unsigned long handle; 531 void *virtual; 532 int pages; 533 struct page **pagelist; 534 dma_addr_t *busaddr; 535}; 536 537struct drm_sigdata { 538 int context; 539 struct drm_hw_lock *lock; 540}; 541 542 543/** 544 * Kernel side of a mapping 545 */ 546struct drm_local_map { 547 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ 548 unsigned long size; /**< Requested physical size (bytes) */ 549 enum drm_map_type type; /**< Type of memory to map */ 550 enum drm_map_flags flags; /**< Flags */ 551 void *handle; /**< User-space: "Handle" to pass to mmap() */ 552 /**< Kernel-space: kernel-virtual address */ 553 int mtrr; /**< MTRR slot used */ 554}; 555 556typedef struct drm_local_map drm_local_map_t; 557 558/** 559 * Mappings list 560 */ 561struct drm_map_list { 562 struct list_head head; /**< list head */ 563 struct drm_hash_item hash; 564 struct drm_local_map *map; /**< mapping */ 565 uint64_t user_token; 566 struct drm_master *master; 567 struct drm_mm_node *file_offset_node; /**< fake offset */ 568}; 569 570/** 571 * Context handle list 572 */ 573struct drm_ctx_list { 574 struct list_head head; /**< list head */ 575 drm_context_t handle; /**< context handle */ 576 struct drm_file *tag; /**< associated fd private data */ 577}; 578 579/* location of GART table */ 580#define DRM_ATI_GART_MAIN 1 581#define DRM_ATI_GART_FB 2 582 583#define DRM_ATI_GART_PCI 1 584#define DRM_ATI_GART_PCIE 2 585#define DRM_ATI_GART_IGP 3 586 587struct drm_ati_pcigart_info { 588 int gart_table_location; 589 int gart_reg_if; 590 void *addr; 591 dma_addr_t bus_addr; 592 dma_addr_t table_mask; 593 struct drm_dma_handle *table_handle; 594 struct drm_local_map mapping; 595 int table_size; 596}; 597 598/** 599 * GEM specific mm private for tracking GEM objects 600 */ 601struct drm_gem_mm { 602 struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */ 603 struct drm_open_hash offset_hash; /**< User token hash table for maps */ 604}; 605 606/** 607 * This structure defines the drm_mm memory object, which will be used by the 608 * DRM for its buffer objects. 609 */ 610struct drm_gem_object { 611 /** Reference count of this object */ 612 struct kref refcount; 613 614 /** Handle count of this object. Each handle also holds a reference */ 615 atomic_t handle_count; /* number of handles on this object */ 616 617 /** Related drm device */ 618 struct drm_device *dev; 619 620 /** File representing the shmem storage */ 621 struct file *filp; 622 623 /* Mapping info for this object */ 624 struct drm_map_list map_list; 625 626 /** 627 * Size of the object, in bytes. Immutable over the object's 628 * lifetime. 629 */ 630 size_t size; 631 632 /** 633 * Global name for this object, starts at 1. 0 means unnamed. 634 * Access is covered by the object_name_lock in the related drm_device 635 */ 636 int name; 637 638 /** 639 * Memory domains. These monitor which caches contain read/write data 640 * related to the object. When transitioning from one set of domains 641 * to another, the driver is called to ensure that caches are suitably 642 * flushed and invalidated 643 */ 644 uint32_t read_domains; 645 uint32_t write_domain; 646 647 /** 648 * While validating an exec operation, the 649 * new read/write domain values are computed here. 650 * They will be transferred to the above values 651 * at the point that any cache flushing occurs 652 */ 653 uint32_t pending_read_domains; 654 uint32_t pending_write_domain; 655 656 void *driver_private; 657}; 658 659#include "drm_crtc.h" 660 661/* per-master structure */ 662struct drm_master { 663 664 struct kref refcount; /* refcount for this master */ 665 666 struct list_head head; /**< each minor contains a list of masters */ 667 struct drm_minor *minor; /**< link back to minor we are a master for */ 668 669 char *unique; /**< Unique identifier: e.g., busid */ 670 int unique_len; /**< Length of unique field */ 671 int unique_size; /**< amount allocated */ 672 673 int blocked; /**< Blocked due to VC switch? */ 674 675 /** \name Authentication */ 676 /*@{ */ 677 struct drm_open_hash magiclist; 678 struct list_head magicfree; 679 /*@} */ 680 681 struct drm_lock_data lock; /**< Information on hardware lock */ 682 683 void *driver_priv; /**< Private structure for driver to use */ 684}; 685 686/** 687 * DRM driver structure. This structure represent the common code for 688 * a family of cards. There will one drm_device for each card present 689 * in this family 690 */ 691struct drm_driver { 692 int (*load) (struct drm_device *, unsigned long flags); 693 int (*firstopen) (struct drm_device *); 694 int (*open) (struct drm_device *, struct drm_file *); 695 void (*preclose) (struct drm_device *, struct drm_file *file_priv); 696 void (*postclose) (struct drm_device *, struct drm_file *); 697 void (*lastclose) (struct drm_device *); 698 int (*unload) (struct drm_device *); 699 int (*suspend) (struct drm_device *, pm_message_t state); 700 int (*resume) (struct drm_device *); 701 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); 702 void (*dma_ready) (struct drm_device *); 703 int (*dma_quiescent) (struct drm_device *); 704 int (*context_ctor) (struct drm_device *dev, int context); 705 int (*context_dtor) (struct drm_device *dev, int context); 706 int (*kernel_context_switch) (struct drm_device *dev, int old, 707 int new); 708 void (*kernel_context_switch_unlock) (struct drm_device *dev); 709 710 /** 711 * get_vblank_counter - get raw hardware vblank counter 712 * @dev: DRM device 713 * @crtc: counter to fetch 714 * 715 * Driver callback for fetching a raw hardware vblank counter 716 * for @crtc. If a device doesn't have a hardware counter, the 717 * driver can simply return the value of drm_vblank_count and 718 * make the enable_vblank() and disable_vblank() hooks into no-ops, 719 * leaving interrupts enabled at all times. 720 * 721 * Wraparound handling and loss of events due to modesetting is dealt 722 * with in the DRM core code. 723 * 724 * RETURNS 725 * Raw vblank counter value. 726 */ 727 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc); 728 729 /** 730 * enable_vblank - enable vblank interrupt events 731 * @dev: DRM device 732 * @crtc: which irq to enable 733 * 734 * Enable vblank interrupts for @crtc. If the device doesn't have 735 * a hardware vblank counter, this routine should be a no-op, since 736 * interrupts will have to stay on to keep the count accurate. 737 * 738 * RETURNS 739 * Zero on success, appropriate errno if the given @crtc's vblank 740 * interrupt cannot be enabled. 741 */ 742 int (*enable_vblank) (struct drm_device *dev, int crtc); 743 744 /** 745 * disable_vblank - disable vblank interrupt events 746 * @dev: DRM device 747 * @crtc: which irq to enable 748 * 749 * Disable vblank interrupts for @crtc. If the device doesn't have 750 * a hardware vblank counter, this routine should be a no-op, since 751 * interrupts will have to stay on to keep the count accurate. 752 */ 753 void (*disable_vblank) (struct drm_device *dev, int crtc); 754 755 /** 756 * Called by \c drm_device_is_agp. Typically used to determine if a 757 * card is really attached to AGP or not. 758 * 759 * \param dev DRM device handle 760 * 761 * \returns 762 * One of three values is returned depending on whether or not the 763 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 764 * (return of 1), or may or may not be AGP (return of 2). 765 */ 766 int (*device_is_agp) (struct drm_device *dev); 767 768 /* these have to be filled in */ 769 770 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS); 771 void (*irq_preinstall) (struct drm_device *dev); 772 int (*irq_postinstall) (struct drm_device *dev); 773 void (*irq_uninstall) (struct drm_device *dev); 774 void (*reclaim_buffers) (struct drm_device *dev, 775 struct drm_file * file_priv); 776 void (*reclaim_buffers_locked) (struct drm_device *dev, 777 struct drm_file *file_priv); 778 void (*reclaim_buffers_idlelocked) (struct drm_device *dev, 779 struct drm_file *file_priv); 780 resource_size_t (*get_map_ofs) (struct drm_local_map * map); 781 resource_size_t (*get_reg_ofs) (struct drm_device *dev); 782 void (*set_version) (struct drm_device *dev, 783 struct drm_set_version *sv); 784 785 /* Master routines */ 786 int (*master_create)(struct drm_device *dev, struct drm_master *master); 787 void (*master_destroy)(struct drm_device *dev, struct drm_master *master); 788 /** 789 * master_set is called whenever the minor master is set. 790 * master_drop is called whenever the minor master is dropped. 791 */ 792 793 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, 794 bool from_open); 795 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv, 796 bool from_release); 797 798 int (*proc_init)(struct drm_minor *minor); 799 void (*proc_cleanup)(struct drm_minor *minor); 800 int (*debugfs_init)(struct drm_minor *minor); 801 void (*debugfs_cleanup)(struct drm_minor *minor); 802 803 /** 804 * Driver-specific constructor for drm_gem_objects, to set up 805 * obj->driver_private. 806 * 807 * Returns 0 on success. 808 */ 809 int (*gem_init_object) (struct drm_gem_object *obj); 810 void (*gem_free_object) (struct drm_gem_object *obj); 811 812 /* vga arb irq handler */ 813 void (*vgaarb_irq)(struct drm_device *dev, bool state); 814 815 /* Driver private ops for this object */ 816 struct vm_operations_struct *gem_vm_ops; 817 818 int major; 819 int minor; 820 int patchlevel; 821 char *name; 822 char *desc; 823 char *date; 824 825 u32 driver_features; 826 int dev_priv_size; 827 struct drm_ioctl_desc *ioctls; 828 int num_ioctls; 829 struct file_operations fops; 830 struct pci_driver pci_driver; 831 struct platform_device *platform_device; 832 /* List of devices hanging off this driver */ 833 struct list_head device_list; 834}; 835 836#define DRM_MINOR_UNASSIGNED 0 837#define DRM_MINOR_LEGACY 1 838#define DRM_MINOR_CONTROL 2 839#define DRM_MINOR_RENDER 3 840 841 842/** 843 * debugfs node list. This structure represents a debugfs file to 844 * be created by the drm core 845 */ 846struct drm_debugfs_list { 847 const char *name; /** file name */ 848 int (*show)(struct seq_file*, void*); /** show callback */ 849 u32 driver_features; /**< Required driver features for this entry */ 850}; 851 852/** 853 * debugfs node structure. This structure represents a debugfs file. 854 */ 855struct drm_debugfs_node { 856 struct list_head list; 857 struct drm_minor *minor; 858 struct drm_debugfs_list *debugfs_ent; 859 struct dentry *dent; 860}; 861 862/** 863 * Info file list entry. This structure represents a debugfs or proc file to 864 * be created by the drm core 865 */ 866struct drm_info_list { 867 const char *name; /** file name */ 868 int (*show)(struct seq_file*, void*); /** show callback */ 869 u32 driver_features; /**< Required driver features for this entry */ 870 void *data; 871}; 872 873/** 874 * debugfs node structure. This structure represents a debugfs file. 875 */ 876struct drm_info_node { 877 struct list_head list; 878 struct drm_minor *minor; 879 struct drm_info_list *info_ent; 880 struct dentry *dent; 881}; 882 883/** 884 * DRM minor structure. This structure represents a drm minor number. 885 */ 886struct drm_minor { 887 int index; /**< Minor device number */ 888 int type; /**< Control or render */ 889 dev_t device; /**< Device number for mknod */ 890 struct device kdev; /**< Linux device */ 891 struct drm_device *dev; 892 893 struct proc_dir_entry *proc_root; /**< proc directory entry */ 894 struct drm_info_node proc_nodes; 895 struct dentry *debugfs_root; 896 struct drm_info_node debugfs_nodes; 897 898 struct drm_master *master; /* currently active master for this node */ 899 struct list_head master_list; 900 struct drm_mode_group mode_group; 901}; 902 903struct drm_pending_vblank_event { 904 struct drm_pending_event base; 905 int pipe; 906 struct drm_event_vblank event; 907}; 908 909/** 910 * DRM device structure. This structure represent a complete card that 911 * may contain multiple heads. 912 */ 913struct drm_device { 914 struct list_head driver_item; /**< list of devices per driver */ 915 char *devname; /**< For /proc/interrupts */ 916 int if_version; /**< Highest interface version set */ 917 918 /** \name Locks */ 919 /*@{ */ 920 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */ 921 struct mutex struct_mutex; /**< For others */ 922 /*@} */ 923 924 /** \name Usage Counters */ 925 /*@{ */ 926 int open_count; /**< Outstanding files open */ 927 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */ 928 atomic_t vma_count; /**< Outstanding vma areas open */ 929 int buf_use; /**< Buffers in use -- cannot alloc */ 930 atomic_t buf_alloc; /**< Buffer allocation in progress */ 931 /*@} */ 932 933 /** \name Performance counters */ 934 /*@{ */ 935 unsigned long counters; 936 enum drm_stat_type types[15]; 937 atomic_t counts[15]; 938 /*@} */ 939 940 struct list_head filelist; 941 942 /** \name Memory management */ 943 /*@{ */ 944 struct list_head maplist; /**< Linked list of regions */ 945 int map_count; /**< Number of mappable regions */ 946 struct drm_open_hash map_hash; /**< User token hash table for maps */ 947 948 /** \name Context handle management */ 949 /*@{ */ 950 struct list_head ctxlist; /**< Linked list of context handles */ 951 int ctx_count; /**< Number of context handles */ 952 struct mutex ctxlist_mutex; /**< For ctxlist */ 953 954 struct idr ctx_idr; 955 956 struct list_head vmalist; /**< List of vmas (for debugging) */ 957 958 /*@} */ 959 960 /** \name DMA queues (contexts) */ 961 /*@{ */ 962 int queue_count; /**< Number of active DMA queues */ 963 int queue_reserved; /**< Number of reserved DMA queues */ 964 int queue_slots; /**< Actual length of queuelist */ 965 struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */ 966 struct drm_device_dma *dma; /**< Optional pointer for DMA support */ 967 /*@} */ 968 969 /** \name Context support */ 970 /*@{ */ 971 int irq_enabled; /**< True if irq handler is enabled */ 972 __volatile__ long context_flag; /**< Context swapping flag */ 973 __volatile__ long interrupt_flag; /**< Interruption handler flag */ 974 __volatile__ long dma_flag; /**< DMA dispatch flag */ 975 struct timer_list timer; /**< Timer for delaying ctx switch */ 976 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ 977 int last_checked; /**< Last context checked for DMA */ 978 int last_context; /**< Last current context */ 979 unsigned long last_switch; /**< jiffies at last context switch */ 980 /*@} */ 981 982 struct work_struct work; 983 /** \name VBLANK IRQ support */ 984 /*@{ */ 985 986 /* 987 * At load time, disabling the vblank interrupt won't be allowed since 988 * old clients may not call the modeset ioctl and therefore misbehave. 989 * Once the modeset ioctl *has* been called though, we can safely 990 * disable them when unused. 991 */ 992 int vblank_disable_allowed; 993 994 wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */ 995 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ 996 spinlock_t vbl_lock; 997 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ 998 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 999 /* for wraparound handling */ 1000 int *vblank_enabled; /* so we don't call enable more than 1001 once per disable */ 1002 int *vblank_inmodeset; /* Display driver is setting mode */ 1003 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ 1004 struct timer_list vblank_disable_timer; 1005 1006 u32 max_vblank_count; /**< size of vblank counter register */ 1007 1008 /** 1009 * List of events 1010 */ 1011 struct list_head vblank_event_list; 1012 spinlock_t event_lock; 1013 1014 /*@} */ 1015 cycles_t ctx_start; 1016 cycles_t lck_start; 1017 1018 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */ 1019 wait_queue_head_t buf_readers; /**< Processes waiting to read */ 1020 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */ 1021 1022 struct drm_agp_head *agp; /**< AGP data */ 1023 1024 struct device *dev; /**< Device structure */ 1025 struct pci_dev *pdev; /**< PCI device structure */ 1026 int pci_vendor; /**< PCI vendor id */ 1027 int pci_device; /**< PCI device id */ 1028#ifdef __alpha__ 1029 struct pci_controller *hose; 1030#endif 1031 1032 struct platform_device *platformdev; /**< Platform device struture */ 1033 1034 struct drm_sg_mem *sg; /**< Scatter gather memory */ 1035 int num_crtcs; /**< Number of CRTCs on this device */ 1036 void *dev_private; /**< device private data */ 1037 void *mm_private; 1038 struct address_space *dev_mapping; 1039 struct drm_sigdata sigdata; /**< For block_all_signals */ 1040 sigset_t sigmask; 1041 1042 struct drm_driver *driver; 1043 struct drm_local_map *agp_buffer_map; 1044 unsigned int agp_buffer_token; 1045 struct drm_minor *control; /**< Control node for card */ 1046 struct drm_minor *primary; /**< render type primary screen head */ 1047 1048 /** \name Drawable information */ 1049 /*@{ */ 1050 spinlock_t drw_lock; 1051 struct idr drw_idr; 1052 /*@} */ 1053 1054 struct drm_mode_config mode_config; /**< Current mode config */ 1055 1056 /** \name GEM information */ 1057 /*@{ */ 1058 spinlock_t object_name_lock; 1059 struct idr object_name_idr; 1060 atomic_t object_count; 1061 atomic_t object_memory; 1062 atomic_t pin_count; 1063 atomic_t pin_memory; 1064 atomic_t gtt_count; 1065 atomic_t gtt_memory; 1066 uint32_t gtt_total; 1067 uint32_t invalidate_domains; /* domains pending invalidation */ 1068 uint32_t flush_domains; /* domains pending flush */ 1069 /*@} */ 1070 1071}; 1072 1073static __inline__ int drm_core_check_feature(struct drm_device *dev, 1074 int feature) 1075{ 1076 return ((dev->driver->driver_features & feature) ? 1 : 0); 1077} 1078 1079static inline int drm_dev_to_irq(struct drm_device *dev) 1080{ 1081 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) 1082 return platform_get_irq(dev->platformdev, 0); 1083 else 1084 return dev->pdev->irq; 1085} 1086 1087static inline int drm_get_pci_domain(struct drm_device *dev) 1088{ 1089 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) 1090 return 0; 1091 1092#ifndef __alpha__ 1093 /* For historical reasons, drm_get_pci_domain() is busticated 1094 * on most archs and has to remain so for userspace interface 1095 * < 1.4, except on alpha which was right from the beginning 1096 */ 1097 if (dev->if_version < 0x10004) 1098 return 0; 1099#endif /* __alpha__ */ 1100 1101 return pci_domain_nr(dev->pdev->bus); 1102} 1103 1104#if __OS_HAS_AGP 1105static inline int drm_core_has_AGP(struct drm_device *dev) 1106{ 1107 return drm_core_check_feature(dev, DRIVER_USE_AGP); 1108} 1109#else 1110#define drm_core_has_AGP(dev) (0) 1111#endif 1112 1113#if __OS_HAS_MTRR 1114static inline int drm_core_has_MTRR(struct drm_device *dev) 1115{ 1116 return drm_core_check_feature(dev, DRIVER_USE_MTRR); 1117} 1118 1119#define DRM_MTRR_WC MTRR_TYPE_WRCOMB 1120 1121static inline int drm_mtrr_add(unsigned long offset, unsigned long size, 1122 unsigned int flags) 1123{ 1124 return mtrr_add(offset, size, flags, 1); 1125} 1126 1127static inline int drm_mtrr_del(int handle, unsigned long offset, 1128 unsigned long size, unsigned int flags) 1129{ 1130 return mtrr_del(handle, offset, size); 1131} 1132 1133#else 1134#define drm_core_has_MTRR(dev) (0) 1135 1136#define DRM_MTRR_WC 0 1137 1138static inline int drm_mtrr_add(unsigned long offset, unsigned long size, 1139 unsigned int flags) 1140{ 1141 return 0; 1142} 1143 1144static inline int drm_mtrr_del(int handle, unsigned long offset, 1145 unsigned long size, unsigned int flags) 1146{ 1147 return 0; 1148} 1149#endif 1150 1151/******************************************************************/ 1152/** \name Internal function definitions */ 1153/*@{*/ 1154 1155 /* Driver support (drm_drv.h) */ 1156extern int drm_init(struct drm_driver *driver); 1157extern void drm_exit(struct drm_driver *driver); 1158extern long drm_ioctl(struct file *filp, 1159 unsigned int cmd, unsigned long arg); 1160extern long drm_compat_ioctl(struct file *filp, 1161 unsigned int cmd, unsigned long arg); 1162extern int drm_lastclose(struct drm_device *dev); 1163 1164 /* Device support (drm_fops.h) */ 1165extern struct mutex drm_global_mutex; 1166extern int drm_open(struct inode *inode, struct file *filp); 1167extern int drm_stub_open(struct inode *inode, struct file *filp); 1168extern int drm_fasync(int fd, struct file *filp, int on); 1169extern ssize_t drm_read(struct file *filp, char __user *buffer, 1170 size_t count, loff_t *offset); 1171extern int drm_release(struct inode *inode, struct file *filp); 1172 1173 /* Mapping support (drm_vm.h) */ 1174extern int drm_mmap(struct file *filp, struct vm_area_struct *vma); 1175extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma); 1176extern void drm_vm_open_locked(struct vm_area_struct *vma); 1177extern void drm_vm_close_locked(struct vm_area_struct *vma); 1178extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map); 1179extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev); 1180extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); 1181 1182 /* Memory management support (drm_memory.h) */ 1183#include "drm_memory.h" 1184extern void drm_mem_init(void); 1185extern int drm_mem_info(char *buf, char **start, off_t offset, 1186 int request, int *eof, void *data); 1187extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area); 1188 1189extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type); 1190extern int drm_free_agp(DRM_AGP_MEM * handle, int pages); 1191extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start); 1192extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev, 1193 struct page **pages, 1194 unsigned long num_pages, 1195 uint32_t gtt_offset, 1196 uint32_t type); 1197extern int drm_unbind_agp(DRM_AGP_MEM * handle); 1198 1199 /* Misc. IOCTL support (drm_ioctl.h) */ 1200extern int drm_irq_by_busid(struct drm_device *dev, void *data, 1201 struct drm_file *file_priv); 1202extern int drm_getunique(struct drm_device *dev, void *data, 1203 struct drm_file *file_priv); 1204extern int drm_setunique(struct drm_device *dev, void *data, 1205 struct drm_file *file_priv); 1206extern int drm_getmap(struct drm_device *dev, void *data, 1207 struct drm_file *file_priv); 1208extern int drm_getclient(struct drm_device *dev, void *data, 1209 struct drm_file *file_priv); 1210extern int drm_getstats(struct drm_device *dev, void *data, 1211 struct drm_file *file_priv); 1212extern int drm_setversion(struct drm_device *dev, void *data, 1213 struct drm_file *file_priv); 1214extern int drm_noop(struct drm_device *dev, void *data, 1215 struct drm_file *file_priv); 1216 1217 /* Context IOCTL support (drm_context.h) */ 1218extern int drm_resctx(struct drm_device *dev, void *data, 1219 struct drm_file *file_priv); 1220extern int drm_addctx(struct drm_device *dev, void *data, 1221 struct drm_file *file_priv); 1222extern int drm_modctx(struct drm_device *dev, void *data, 1223 struct drm_file *file_priv); 1224extern int drm_getctx(struct drm_device *dev, void *data, 1225 struct drm_file *file_priv); 1226extern int drm_switchctx(struct drm_device *dev, void *data, 1227 struct drm_file *file_priv); 1228extern int drm_newctx(struct drm_device *dev, void *data, 1229 struct drm_file *file_priv); 1230extern int drm_rmctx(struct drm_device *dev, void *data, 1231 struct drm_file *file_priv); 1232 1233extern int drm_ctxbitmap_init(struct drm_device *dev); 1234extern void drm_ctxbitmap_cleanup(struct drm_device *dev); 1235extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 1236 1237extern int drm_setsareactx(struct drm_device *dev, void *data, 1238 struct drm_file *file_priv); 1239extern int drm_getsareactx(struct drm_device *dev, void *data, 1240 struct drm_file *file_priv); 1241 1242 /* Drawable IOCTL support (drm_drawable.h) */ 1243extern int drm_adddraw(struct drm_device *dev, void *data, 1244 struct drm_file *file_priv); 1245extern int drm_rmdraw(struct drm_device *dev, void *data, 1246 struct drm_file *file_priv); 1247extern int drm_update_drawable_info(struct drm_device *dev, void *data, 1248 struct drm_file *file_priv); 1249extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, 1250 drm_drawable_t id); 1251extern void drm_drawable_free_all(struct drm_device *dev); 1252 1253 /* Authentication IOCTL support (drm_auth.h) */ 1254extern int drm_getmagic(struct drm_device *dev, void *data, 1255 struct drm_file *file_priv); 1256extern int drm_authmagic(struct drm_device *dev, void *data, 1257 struct drm_file *file_priv); 1258 1259/* Cache management (drm_cache.c) */ 1260void drm_clflush_pages(struct page *pages[], unsigned long num_pages); 1261 1262 /* Locking IOCTL support (drm_lock.h) */ 1263extern int drm_lock(struct drm_device *dev, void *data, 1264 struct drm_file *file_priv); 1265extern int drm_unlock(struct drm_device *dev, void *data, 1266 struct drm_file *file_priv); 1267extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context); 1268extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context); 1269extern void drm_idlelock_take(struct drm_lock_data *lock_data); 1270extern void drm_idlelock_release(struct drm_lock_data *lock_data); 1271 1272/* 1273 * These are exported to drivers so that they can implement fencing using 1274 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. 1275 */ 1276 1277extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv); 1278 1279 /* Buffer management support (drm_bufs.h) */ 1280extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request); 1281extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request); 1282extern int drm_addmap(struct drm_device *dev, resource_size_t offset, 1283 unsigned int size, enum drm_map_type type, 1284 enum drm_map_flags flags, struct drm_local_map **map_ptr); 1285extern int drm_addmap_ioctl(struct drm_device *dev, void *data, 1286 struct drm_file *file_priv); 1287extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map); 1288extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map); 1289extern int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1290 struct drm_file *file_priv); 1291extern int drm_addbufs(struct drm_device *dev, void *data, 1292 struct drm_file *file_priv); 1293extern int drm_infobufs(struct drm_device *dev, void *data, 1294 struct drm_file *file_priv); 1295extern int drm_markbufs(struct drm_device *dev, void *data, 1296 struct drm_file *file_priv); 1297extern int drm_freebufs(struct drm_device *dev, void *data, 1298 struct drm_file *file_priv); 1299extern int drm_mapbufs(struct drm_device *dev, void *data, 1300 struct drm_file *file_priv); 1301extern int drm_order(unsigned long size); 1302 1303 /* DMA support (drm_dma.h) */ 1304extern int drm_dma_setup(struct drm_device *dev); 1305extern void drm_dma_takedown(struct drm_device *dev); 1306extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf); 1307extern void drm_core_reclaim_buffers(struct drm_device *dev, 1308 struct drm_file *filp); 1309 1310 /* IRQ support (drm_irq.h) */ 1311extern int drm_control(struct drm_device *dev, void *data, 1312 struct drm_file *file_priv); 1313extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 1314extern int drm_irq_install(struct drm_device *dev); 1315extern int drm_irq_uninstall(struct drm_device *dev); 1316extern void drm_driver_irq_preinstall(struct drm_device *dev); 1317extern void drm_driver_irq_postinstall(struct drm_device *dev); 1318extern void drm_driver_irq_uninstall(struct drm_device *dev); 1319 1320extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); 1321extern int drm_wait_vblank(struct drm_device *dev, void *data, 1322 struct drm_file *filp); 1323extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 1324extern u32 drm_vblank_count(struct drm_device *dev, int crtc); 1325extern void drm_handle_vblank(struct drm_device *dev, int crtc); 1326extern int drm_vblank_get(struct drm_device *dev, int crtc); 1327extern void drm_vblank_put(struct drm_device *dev, int crtc); 1328extern void drm_vblank_off(struct drm_device *dev, int crtc); 1329extern void drm_vblank_cleanup(struct drm_device *dev); 1330/* Modesetting support */ 1331extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); 1332extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); 1333extern int drm_modeset_ctl(struct drm_device *dev, void *data, 1334 struct drm_file *file_priv); 1335 1336 /* AGP/GART support (drm_agpsupport.h) */ 1337extern struct drm_agp_head *drm_agp_init(struct drm_device *dev); 1338extern int drm_agp_acquire(struct drm_device *dev); 1339extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1340 struct drm_file *file_priv); 1341extern int drm_agp_release(struct drm_device *dev); 1342extern int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1343 struct drm_file *file_priv); 1344extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 1345extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1346 struct drm_file *file_priv); 1347extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info); 1348extern int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1349 struct drm_file *file_priv); 1350extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 1351extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1352 struct drm_file *file_priv); 1353extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 1354extern int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1355 struct drm_file *file_priv); 1356extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 1357extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1358 struct drm_file *file_priv); 1359extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 1360extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1361 struct drm_file *file_priv); 1362extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type); 1363extern int drm_agp_free_memory(DRM_AGP_MEM * handle); 1364extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start); 1365extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle); 1366extern void drm_agp_chipset_flush(struct drm_device *dev); 1367 1368 /* Stub support (drm_stub.h) */ 1369extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, 1370 struct drm_file *file_priv); 1371extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, 1372 struct drm_file *file_priv); 1373struct drm_master *drm_master_create(struct drm_minor *minor); 1374extern struct drm_master *drm_master_get(struct drm_master *master); 1375extern void drm_master_put(struct drm_master **master); 1376extern int drm_get_pci_dev(struct pci_dev *pdev, 1377 const struct pci_device_id *ent, 1378 struct drm_driver *driver); 1379extern int drm_get_platform_dev(struct platform_device *pdev, 1380 struct drm_driver *driver); 1381extern void drm_put_dev(struct drm_device *dev); 1382extern int drm_put_minor(struct drm_minor **minor); 1383extern unsigned int drm_debug; 1384 1385extern struct class *drm_class; 1386extern struct proc_dir_entry *drm_proc_root; 1387extern struct dentry *drm_debugfs_root; 1388 1389extern struct idr drm_minors_idr; 1390 1391extern struct drm_local_map *drm_getsarea(struct drm_device *dev); 1392 1393 /* Proc support (drm_proc.h) */ 1394extern int drm_proc_init(struct drm_minor *minor, int minor_id, 1395 struct proc_dir_entry *root); 1396extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root); 1397 1398 /* Debugfs support */ 1399#if defined(CONFIG_DEBUG_FS) 1400extern int drm_debugfs_init(struct drm_minor *minor, int minor_id, 1401 struct dentry *root); 1402extern int drm_debugfs_create_files(struct drm_info_list *files, int count, 1403 struct dentry *root, struct drm_minor *minor); 1404extern int drm_debugfs_remove_files(struct drm_info_list *files, int count, 1405 struct drm_minor *minor); 1406extern int drm_debugfs_cleanup(struct drm_minor *minor); 1407#endif 1408 1409 /* Info file support */ 1410extern int drm_name_info(struct seq_file *m, void *data); 1411extern int drm_vm_info(struct seq_file *m, void *data); 1412extern int drm_queues_info(struct seq_file *m, void *data); 1413extern int drm_bufs_info(struct seq_file *m, void *data); 1414extern int drm_vblank_info(struct seq_file *m, void *data); 1415extern int drm_clients_info(struct seq_file *m, void* data); 1416extern int drm_gem_name_info(struct seq_file *m, void *data); 1417extern int drm_gem_object_info(struct seq_file *m, void* data); 1418 1419#if DRM_DEBUG_CODE 1420extern int drm_vma_info(struct seq_file *m, void *data); 1421#endif 1422 1423 /* Scatter Gather Support (drm_scatter.h) */ 1424extern void drm_sg_cleanup(struct drm_sg_mem * entry); 1425extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1426 struct drm_file *file_priv); 1427extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 1428extern int drm_sg_free(struct drm_device *dev, void *data, 1429 struct drm_file *file_priv); 1430 1431 /* ATI PCIGART support (ati_pcigart.h) */ 1432extern int drm_ati_pcigart_init(struct drm_device *dev, 1433 struct drm_ati_pcigart_info * gart_info); 1434extern int drm_ati_pcigart_cleanup(struct drm_device *dev, 1435 struct drm_ati_pcigart_info * gart_info); 1436 1437extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1438 size_t align); 1439extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); 1440extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); 1441 1442 /* sysfs support (drm_sysfs.c) */ 1443struct drm_sysfs_class; 1444extern struct class *drm_sysfs_create(struct module *owner, char *name); 1445extern void drm_sysfs_destroy(void); 1446extern int drm_sysfs_device_add(struct drm_minor *minor); 1447extern void drm_sysfs_hotplug_event(struct drm_device *dev); 1448extern void drm_sysfs_device_remove(struct drm_minor *minor); 1449extern char *drm_get_connector_status_name(enum drm_connector_status status); 1450extern int drm_sysfs_connector_add(struct drm_connector *connector); 1451extern void drm_sysfs_connector_remove(struct drm_connector *connector); 1452 1453/* Graphics Execution Manager library functions (drm_gem.c) */ 1454int drm_gem_init(struct drm_device *dev); 1455void drm_gem_destroy(struct drm_device *dev); 1456void drm_gem_object_release(struct drm_gem_object *obj); 1457void drm_gem_object_free(struct kref *kref); 1458struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, 1459 size_t size); 1460int drm_gem_object_init(struct drm_device *dev, 1461 struct drm_gem_object *obj, size_t size); 1462void drm_gem_object_handle_free(struct drm_gem_object *obj); 1463void drm_gem_vm_open(struct vm_area_struct *vma); 1464void drm_gem_vm_close(struct vm_area_struct *vma); 1465int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); 1466 1467#include "drm_global.h" 1468 1469static inline void 1470drm_gem_object_reference(struct drm_gem_object *obj) 1471{ 1472 kref_get(&obj->refcount); 1473} 1474 1475static inline void 1476drm_gem_object_unreference(struct drm_gem_object *obj) 1477{ 1478 if (obj != NULL) 1479 kref_put(&obj->refcount, drm_gem_object_free); 1480} 1481 1482static inline void 1483drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) 1484{ 1485 if (obj != NULL) { 1486 struct drm_device *dev = obj->dev; 1487 mutex_lock(&dev->struct_mutex); 1488 kref_put(&obj->refcount, drm_gem_object_free); 1489 mutex_unlock(&dev->struct_mutex); 1490 } 1491} 1492 1493int drm_gem_handle_create(struct drm_file *file_priv, 1494 struct drm_gem_object *obj, 1495 u32 *handlep); 1496 1497static inline void 1498drm_gem_object_handle_reference(struct drm_gem_object *obj) 1499{ 1500 drm_gem_object_reference(obj); 1501 atomic_inc(&obj->handle_count); 1502} 1503 1504static inline void 1505drm_gem_object_handle_unreference(struct drm_gem_object *obj) 1506{ 1507 if (obj == NULL) 1508 return; 1509 1510 if (atomic_read(&obj->handle_count) == 0) 1511 return; 1512 /* 1513 * Must bump handle count first as this may be the last 1514 * ref, in which case the object would disappear before we 1515 * checked for a name 1516 */ 1517 if (atomic_dec_and_test(&obj->handle_count)) 1518 drm_gem_object_handle_free(obj); 1519 drm_gem_object_unreference(obj); 1520} 1521 1522static inline void 1523drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) 1524{ 1525 if (obj == NULL) 1526 return; 1527 1528 if (atomic_read(&obj->handle_count) == 0) 1529 return; 1530 1531 /* 1532 * Must bump handle count first as this may be the last 1533 * ref, in which case the object would disappear before we 1534 * checked for a name 1535 */ 1536 1537 if (atomic_dec_and_test(&obj->handle_count)) 1538 drm_gem_object_handle_free(obj); 1539 drm_gem_object_unreference_unlocked(obj); 1540} 1541 1542struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, 1543 struct drm_file *filp, 1544 u32 handle); 1545int drm_gem_close_ioctl(struct drm_device *dev, void *data, 1546 struct drm_file *file_priv); 1547int drm_gem_flink_ioctl(struct drm_device *dev, void *data, 1548 struct drm_file *file_priv); 1549int drm_gem_open_ioctl(struct drm_device *dev, void *data, 1550 struct drm_file *file_priv); 1551void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); 1552void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); 1553 1554extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev); 1555extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev); 1556extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev); 1557 1558static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, 1559 unsigned int token) 1560{ 1561 struct drm_map_list *_entry; 1562 list_for_each_entry(_entry, &dev->maplist, head) 1563 if (_entry->user_token == token) 1564 return _entry->map; 1565 return NULL; 1566} 1567 1568static __inline__ int drm_device_is_agp(struct drm_device *dev) 1569{ 1570 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) 1571 return 0; 1572 1573 if (dev->driver->device_is_agp != NULL) { 1574 int err = (*dev->driver->device_is_agp) (dev); 1575 1576 if (err != 2) { 1577 return err; 1578 } 1579 } 1580 1581 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); 1582} 1583 1584static __inline__ int drm_device_is_pcie(struct drm_device *dev) 1585{ 1586 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) 1587 return 0; 1588 else 1589 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP); 1590} 1591 1592static __inline__ void drm_core_dropmap(struct drm_local_map *map) 1593{ 1594} 1595 1596#include "drm_mem_util.h" 1597 1598static inline void *drm_get_device(struct drm_device *dev) 1599{ 1600 if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) 1601 return dev->platformdev; 1602 else 1603 return dev->pdev; 1604} 1605 1606extern int drm_platform_init(struct drm_driver *driver); 1607extern int drm_pci_init(struct drm_driver *driver); 1608extern int drm_fill_in_dev(struct drm_device *dev, 1609 const struct pci_device_id *ent, 1610 struct drm_driver *driver); 1611int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type); 1612/*@}*/ 1613 1614#endif /* __KERNEL__ */ 1615#endif 1616