drmP.h revision 186295
1/* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*- 2 * Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com 3 */ 4/*- 5 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 6 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 7 * All rights reserved. 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice (including the next 17 * paragraph) shall be included in all copies or substantial portions of the 18 * Software. 19 * 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 26 * OTHER DEALINGS IN THE SOFTWARE. 27 * 28 * Authors: 29 * Rickard E. (Rik) Faith <faith@valinux.com> 30 * Gareth Hughes <gareth@valinux.com> 31 * 32 */ 33 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: head/sys/dev/drm/drmP.h 186295 2008-12-18 21:04:50Z rnoland $"); 36 37#ifndef _DRM_P_H_ 38#define _DRM_P_H_ 39 40#if defined(_KERNEL) || defined(__KERNEL__) 41 42struct drm_device; 43struct drm_file; 44 45#include <sys/param.h> 46#include <sys/queue.h> 47#include <sys/malloc.h> 48#include <sys/kernel.h> 49#include <sys/module.h> 50#include <sys/systm.h> 51#include <sys/conf.h> 52#include <sys/stat.h> 53#if __FreeBSD_version >= 700000 54#include <sys/priv.h> 55#endif 56#include <sys/proc.h> 57#include <sys/lock.h> 58#include <sys/fcntl.h> 59#include <sys/uio.h> 60#include <sys/filio.h> 61#include <sys/sysctl.h> 62#include <sys/bus.h> 63#include <sys/signalvar.h> 64#include <sys/poll.h> 65#include <sys/tree.h> 66#include <sys/taskqueue.h> 67#include <vm/vm.h> 68#include <vm/pmap.h> 69#include <vm/vm_extern.h> 70#include <vm/vm_map.h> 71#include <vm/vm_param.h> 72#include <machine/param.h> 73#include <machine/pmap.h> 74#include <machine/bus.h> 75#include <machine/resource.h> 76#include <machine/specialreg.h> 77#include <machine/sysarch.h> 78#include <sys/endian.h> 79#include <sys/mman.h> 80#include <sys/rman.h> 81#include <sys/memrange.h> 82#if __FreeBSD_version >= 800004 83#include <dev/agp/agpvar.h> 84#else /* __FreeBSD_version >= 800004 */ 85#include <pci/agpvar.h> 86#endif /* __FreeBSD_version >= 800004 */ 87#include <sys/agpio.h> 88#include <sys/mutex.h> 89#include <dev/pci/pcivar.h> 90#include <sys/selinfo.h> 91#include <sys/bus.h> 92 93#include "dev/drm/drm.h" 94#include "dev/drm/drm_linux_list.h" 95#include "dev/drm/drm_atomic.h" 96#include "dev/drm/drm_internal.h" 97 98#include <opt_drm.h> 99#ifdef DRM_DEBUG 100#undef DRM_DEBUG 101#define DRM_DEBUG_DEFAULT_ON 1 102#endif /* DRM_DEBUG */ 103 104#if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__) 105#include <sys/file.h> 106#include <sys/proc.h> 107#include <machine/../linux/linux.h> 108#include <machine/../linux/linux_proto.h> 109#else 110/* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't 111 * supported on this OS yet. 112 */ 113#undef DRM_LINUX 114#define DRM_LINUX 0 115#endif 116 117/* driver capabilities and requirements mask */ 118#define DRIVER_USE_AGP 0x1 119#define DRIVER_REQUIRE_AGP 0x2 120#define DRIVER_USE_MTRR 0x4 121#define DRIVER_PCI_DMA 0x8 122#define DRIVER_SG 0x10 123#define DRIVER_HAVE_DMA 0x20 124#define DRIVER_HAVE_IRQ 0x40 125#define DRIVER_DMA_QUEUE 0x100 126 127 128#define DRM_HASH_SIZE 16 /* Size of key hash table */ 129#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 130#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 131 132MALLOC_DECLARE(DRM_MEM_DMA); 133MALLOC_DECLARE(DRM_MEM_SAREA); 134MALLOC_DECLARE(DRM_MEM_DRIVER); 135MALLOC_DECLARE(DRM_MEM_MAGIC); 136MALLOC_DECLARE(DRM_MEM_IOCTLS); 137MALLOC_DECLARE(DRM_MEM_MAPS); 138MALLOC_DECLARE(DRM_MEM_BUFS); 139MALLOC_DECLARE(DRM_MEM_SEGS); 140MALLOC_DECLARE(DRM_MEM_PAGES); 141MALLOC_DECLARE(DRM_MEM_FILES); 142MALLOC_DECLARE(DRM_MEM_QUEUES); 143MALLOC_DECLARE(DRM_MEM_CMDS); 144MALLOC_DECLARE(DRM_MEM_MAPPINGS); 145MALLOC_DECLARE(DRM_MEM_BUFLISTS); 146MALLOC_DECLARE(DRM_MEM_AGPLISTS); 147MALLOC_DECLARE(DRM_MEM_CTXBITMAP); 148MALLOC_DECLARE(DRM_MEM_SGLISTS); 149MALLOC_DECLARE(DRM_MEM_DRAWABLE); 150 151#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 152 153 /* Internal types and structures */ 154#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 155#define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 156#define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 157 158#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 159 160#define __OS_HAS_AGP 1 161 162#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 163#define DRM_DEV_UID 0 164#define DRM_DEV_GID 0 165 166#define wait_queue_head_t atomic_t 167#define DRM_WAKEUP(w) wakeup((void *)w) 168#define DRM_WAKEUP_INT(w) wakeup(w) 169#define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 170 171#define DRM_CURPROC curthread 172#define DRM_STRUCTPROC struct thread 173#define DRM_SPINTYPE struct mtx 174#define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF) 175#define DRM_SPINUNINIT(l) mtx_destroy(l) 176#define DRM_SPINLOCK(l) mtx_lock(l) 177#define DRM_SPINUNLOCK(u) mtx_unlock(u) 178#define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \ 179 mtx_lock(l); \ 180 (void)irqflags; \ 181} while (0) 182#define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u) 183#define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 184#define DRM_CURRENTPID curthread->td_proc->p_pid 185#define DRM_LOCK() mtx_lock(&dev->dev_lock) 186#define DRM_UNLOCK() mtx_unlock(&dev->dev_lock) 187#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 188 189#define DRM_IRQ_ARGS void *arg 190typedef void irqreturn_t; 191#define IRQ_HANDLED /* nothing */ 192#define IRQ_NONE /* nothing */ 193 194enum { 195 DRM_IS_NOT_AGP, 196 DRM_IS_AGP, 197 DRM_MIGHT_BE_AGP 198}; 199#define DRM_AGP_MEM struct agp_memory_info 200 201#define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 202 203#define PAGE_ALIGN(addr) round_page(addr) 204/* DRM_SUSER returns true if the user is superuser */ 205#if __FreeBSD_version >= 700000 206#define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 207#else 208#define DRM_SUSER(p) (suser(p) == 0) 209#endif 210#define DRM_AGP_FIND_DEVICE() agp_find_device() 211#define DRM_MTRR_WC MDF_WRITECOMBINE 212#define jiffies ticks 213 214/* Capabilities taken from src/sys/dev/pci/pcireg.h. */ 215#ifndef PCIY_AGP 216#define PCIY_AGP 0x02 217#endif 218 219#ifndef PCIY_EXPRESS 220#define PCIY_EXPRESS 0x10 221#endif 222 223typedef unsigned long dma_addr_t; 224typedef u_int64_t u64; 225typedef u_int32_t u32; 226typedef u_int16_t u16; 227typedef u_int8_t u8; 228 229/* DRM_READMEMORYBARRIER() prevents reordering of reads. 230 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 231 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 232 */ 233#if defined(__i386__) 234#define DRM_READMEMORYBARRIER() __asm __volatile( \ 235 "lock; addl $0,0(%%esp)" : : : "memory"); 236#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); 237#define DRM_MEMORYBARRIER() __asm __volatile( \ 238 "lock; addl $0,0(%%esp)" : : : "memory"); 239#elif defined(__alpha__) 240#define DRM_READMEMORYBARRIER() alpha_mb(); 241#define DRM_WRITEMEMORYBARRIER() alpha_wmb(); 242#define DRM_MEMORYBARRIER() alpha_mb(); 243#elif defined(__amd64__) 244#define DRM_READMEMORYBARRIER() __asm __volatile( \ 245 "lock; addl $0,0(%%rsp)" : : : "memory"); 246#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); 247#define DRM_MEMORYBARRIER() __asm __volatile( \ 248 "lock; addl $0,0(%%rsp)" : : : "memory"); 249#endif 250 251#define DRM_READ8(map, offset) \ 252 *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) 253#define DRM_READ16(map, offset) \ 254 *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) 255#define DRM_READ32(map, offset) \ 256 *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) 257#define DRM_WRITE8(map, offset, val) \ 258 *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) = val 259#define DRM_WRITE16(map, offset, val) \ 260 *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) = val 261#define DRM_WRITE32(map, offset, val) \ 262 *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) = val 263 264#define DRM_VERIFYAREA_READ( uaddr, size ) \ 265 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 266 267#define DRM_COPY_TO_USER(user, kern, size) \ 268 copyout(kern, user, size) 269#define DRM_COPY_FROM_USER(kern, user, size) \ 270 copyin(user, kern, size) 271#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 272 copyin(arg2, arg1, arg3) 273#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 274 copyout(arg2, arg1, arg3) 275#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 276 ((val) = fuword32(uaddr), 0) 277 278#define cpu_to_le32(x) htole32(x) 279#define le32_to_cpu(x) le32toh(x) 280 281#define DRM_HZ hz 282#define DRM_UDELAY(udelay) DELAY(udelay) 283#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ 284 285#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 286 (_map) = (_dev)->context_sareas[_ctx]; \ 287} while(0) 288 289#define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 290do { \ 291 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 292 dev->lock.file_priv != file_priv) { \ 293 DRM_ERROR("%s called without lock held\n", \ 294 __FUNCTION__); \ 295 return EINVAL; \ 296 } \ 297} while (0) 298 299/* Returns -errno to shared code */ 300#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 301for ( ret = 0 ; !ret && !(condition) ; ) { \ 302 DRM_UNLOCK(); \ 303 mtx_lock(&dev->irq_lock); \ 304 if (!(condition)) \ 305 ret = -mtx_sleep(&(queue), &dev->irq_lock, \ 306 PZERO | PCATCH, "drmwtq", (timeout)); \ 307 mtx_unlock(&dev->irq_lock); \ 308 DRM_LOCK(); \ 309} 310 311#define DRM_ERROR(fmt, arg...) \ 312 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 313 DRM_CURRENTPID, __func__ , ## arg) 314 315#define DRM_INFO(fmt, arg...) printf("info: [" DRM_NAME "] " fmt , ## arg) 316 317#define DRM_DEBUG(fmt, arg...) do { \ 318 if (drm_debug_flag) \ 319 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 320 __func__ , ## arg); \ 321} while (0) 322 323typedef struct drm_pci_id_list 324{ 325 int vendor; 326 int device; 327 long driver_private; 328 char *name; 329} drm_pci_id_list_t; 330 331#define DRM_AUTH 0x1 332#define DRM_MASTER 0x2 333#define DRM_ROOT_ONLY 0x4 334typedef struct drm_ioctl_desc { 335 unsigned long cmd; 336 int (*func)(struct drm_device *dev, void *data, 337 struct drm_file *file_priv); 338 int flags; 339} drm_ioctl_desc_t; 340/** 341 * Creates a driver or general drm_ioctl_desc array entry for the given 342 * ioctl, for use by drm_ioctl(). 343 */ 344#define DRM_IOCTL_DEF(ioctl, func, flags) \ 345 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 346 347typedef struct drm_magic_entry { 348 drm_magic_t magic; 349 struct drm_file *priv; 350 struct drm_magic_entry *next; 351} drm_magic_entry_t; 352 353typedef struct drm_magic_head { 354 struct drm_magic_entry *head; 355 struct drm_magic_entry *tail; 356} drm_magic_head_t; 357 358typedef struct drm_buf { 359 int idx; /* Index into master buflist */ 360 int total; /* Buffer size */ 361 int order; /* log-base-2(total) */ 362 int used; /* Amount of buffer in use (for DMA) */ 363 unsigned long offset; /* Byte offset (used internally) */ 364 void *address; /* Address of buffer */ 365 unsigned long bus_address; /* Bus address of buffer */ 366 struct drm_buf *next; /* Kernel-only: used for free list */ 367 __volatile__ int pending; /* On hardware DMA queue */ 368 struct drm_file *file_priv; /* Unique identifier of holding process */ 369 int context; /* Kernel queue for this buffer */ 370 enum { 371 DRM_LIST_NONE = 0, 372 DRM_LIST_FREE = 1, 373 DRM_LIST_WAIT = 2, 374 DRM_LIST_PEND = 3, 375 DRM_LIST_PRIO = 4, 376 DRM_LIST_RECLAIM = 5 377 } list; /* Which list we're on */ 378 379 int dev_priv_size; /* Size of buffer private stoarge */ 380 void *dev_private; /* Per-buffer private storage */ 381} drm_buf_t; 382 383typedef struct drm_freelist { 384 int initialized; /* Freelist in use */ 385 atomic_t count; /* Number of free buffers */ 386 drm_buf_t *next; /* End pointer */ 387 388 int low_mark; /* Low water mark */ 389 int high_mark; /* High water mark */ 390} drm_freelist_t; 391 392typedef struct drm_dma_handle { 393 void *vaddr; 394 bus_addr_t busaddr; 395 bus_dma_tag_t tag; 396 bus_dmamap_t map; 397} drm_dma_handle_t; 398 399typedef struct drm_buf_entry { 400 int buf_size; 401 int buf_count; 402 drm_buf_t *buflist; 403 int seg_count; 404 drm_dma_handle_t **seglist; 405 int page_order; 406 407 drm_freelist_t freelist; 408} drm_buf_entry_t; 409 410typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 411struct drm_file { 412 TAILQ_ENTRY(drm_file) link; 413 struct drm_device *dev; 414 int authenticated; 415 int master; 416 int minor; 417 pid_t pid; 418 uid_t uid; 419 drm_magic_t magic; 420 unsigned long ioctl_count; 421 void *driver_priv; 422}; 423 424typedef struct drm_lock_data { 425 struct drm_hw_lock *hw_lock; /* Hardware lock */ 426 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/ 427 int lock_queue; /* Queue of blocked processes */ 428 unsigned long lock_time; /* Time of last lock in jiffies */ 429} drm_lock_data_t; 430 431/* This structure, in the struct drm_device, is always initialized while the 432 * device 433 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 434 * when set marks that no further bufs may be allocated until device teardown 435 * occurs (when the last open of the device has closed). The high/low 436 * watermarks of bufs are only touched by the X Server, and thus not 437 * concurrently accessed, so no locking is needed. 438 */ 439typedef struct drm_device_dma { 440 drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; 441 int buf_count; 442 drm_buf_t **buflist; /* Vector of pointers info bufs */ 443 int seg_count; 444 int page_count; 445 unsigned long *pagelist; 446 unsigned long byte_count; 447 enum { 448 _DRM_DMA_USE_AGP = 0x01, 449 _DRM_DMA_USE_SG = 0x02 450 } flags; 451} drm_device_dma_t; 452 453typedef struct drm_agp_mem { 454 void *handle; 455 unsigned long bound; /* address */ 456 int pages; 457 struct drm_agp_mem *prev; 458 struct drm_agp_mem *next; 459} drm_agp_mem_t; 460 461typedef struct drm_agp_head { 462 device_t agpdev; 463 struct agp_info info; 464 const char *chipset; 465 drm_agp_mem_t *memory; 466 unsigned long mode; 467 int enabled; 468 int acquired; 469 unsigned long base; 470 int mtrr; 471 int cant_use_aperture; 472 unsigned long page_mask; 473} drm_agp_head_t; 474 475typedef struct drm_sg_mem { 476 unsigned long handle; 477 void *virtual; 478 int pages; 479 dma_addr_t *busaddr; 480 struct drm_dma_handle *sg_dmah; /* Handle for sg_pages */ 481 struct drm_dma_handle *dmah; /* Handle to PCI memory */ 482 /* for ATI PCIGART table */ 483} drm_sg_mem_t; 484 485typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; 486 487typedef struct drm_local_map { 488 unsigned long offset; /* Physical address (0 for SAREA)*/ 489 unsigned long size; /* Physical size (bytes) */ 490 enum drm_map_type type; /* Type of memory mapped */ 491 enum drm_map_flags flags; /* Flags */ 492 void *handle; /* User-space: "Handle" to pass to mmap */ 493 /* Kernel-space: kernel-virtual address */ 494 int mtrr; /* Boolean: MTRR used */ 495 /* Private data */ 496 int rid; /* PCI resource ID for bus_space */ 497 struct resource *bsr; 498 bus_space_tag_t bst; 499 bus_space_handle_t bsh; 500 drm_dma_handle_t *dmah; 501 TAILQ_ENTRY(drm_local_map) link; 502} drm_local_map_t; 503 504TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig); 505typedef struct drm_vbl_sig { 506 TAILQ_ENTRY(drm_vbl_sig) link; 507 unsigned int sequence; 508 int signo; 509 int pid; 510} drm_vbl_sig_t; 511 512struct drm_vblank_info { 513 wait_queue_head_t queue; /* vblank wait queue */ 514 atomic_t count; /* number of VBLANK interrupts */ 515 /* (driver must alloc the right number of counters) */ 516 struct drm_vbl_sig_list sigs; /* signal list to send on VBLANK */ 517 atomic_t refcount; /* number of users of vblank interrupts */ 518 u32 last; /* protected by dev->vbl_lock, used */ 519 /* for wraparound handling */ 520 int enabled; /* so we don't call enable more than */ 521 /* once per disable */ 522 int inmodeset; /* Display driver is setting mode */ 523}; 524 525/* location of GART table */ 526#define DRM_ATI_GART_MAIN 1 527#define DRM_ATI_GART_FB 2 528 529#define DRM_ATI_GART_PCI 1 530#define DRM_ATI_GART_PCIE 2 531#define DRM_ATI_GART_IGP 3 532 533struct drm_ati_pcigart_info { 534 int gart_table_location; 535 int gart_reg_if; 536 void *addr; 537 dma_addr_t bus_addr; 538 dma_addr_t table_mask; 539 dma_addr_t member_mask; 540 struct drm_dma_handle *table_handle; 541 drm_local_map_t mapping; 542 int table_size; 543}; 544 545#ifndef DMA_BIT_MASK 546#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 547#endif 548 549#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 550 551struct drm_driver_info { 552 int (*load)(struct drm_device *, unsigned long flags); 553 int (*firstopen)(struct drm_device *); 554 int (*open)(struct drm_device *, struct drm_file *); 555 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 556 void (*postclose)(struct drm_device *, struct drm_file *); 557 void (*lastclose)(struct drm_device *); 558 int (*unload)(struct drm_device *); 559 void (*reclaim_buffers_locked)(struct drm_device *, 560 struct drm_file *file_priv); 561 int (*dma_ioctl)(struct drm_device *dev, void *data, 562 struct drm_file *file_priv); 563 void (*dma_ready)(struct drm_device *); 564 int (*dma_quiescent)(struct drm_device *); 565 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 566 enum drm_lock_flags flags); 567 int (*dma_flush_unblock)(struct drm_device *, int context, 568 enum drm_lock_flags flags); 569 int (*context_ctor)(struct drm_device *dev, int context); 570 int (*context_dtor)(struct drm_device *dev, int context); 571 int (*kernel_context_switch)(struct drm_device *dev, int old, 572 int new); 573 int (*kernel_context_switch_unlock)(struct drm_device *dev); 574 void (*irq_preinstall)(struct drm_device *dev); 575 int (*irq_postinstall)(struct drm_device *dev); 576 void (*irq_uninstall)(struct drm_device *dev); 577 void (*irq_handler)(DRM_IRQ_ARGS); 578 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 579 int (*enable_vblank)(struct drm_device *dev, int crtc); 580 void (*disable_vblank)(struct drm_device *dev, int crtc); 581 582 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 583 584 /** 585 * Called by \c drm_device_is_agp. Typically used to determine if a 586 * card is really attached to AGP or not. 587 * 588 * \param dev DRM device handle 589 * 590 * \returns 591 * One of three values is returned depending on whether or not the 592 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 593 * (return of 1), or may or may not be AGP (return of 2). 594 */ 595 int (*device_is_agp) (struct drm_device * dev); 596 597 drm_ioctl_desc_t *ioctls; 598 int max_ioctl; 599 600 int buf_priv_size; 601 602 int major; 603 int minor; 604 int patchlevel; 605 const char *name; /* Simple driver name */ 606 const char *desc; /* Longer driver name */ 607 const char *date; /* Date of last major changes. */ 608 609 u32 driver_features; 610}; 611 612/* Length for the array of resource pointers for drm_get_resource_*. */ 613#define DRM_MAX_PCI_RESOURCE 3 614 615/** 616 * DRM device functions structure 617 */ 618struct drm_device { 619 struct drm_driver_info *driver; 620 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 621 622 u_int16_t pci_device; /* PCI device id */ 623 u_int16_t pci_vendor; /* PCI vendor id */ 624 625 char *unique; /* Unique identifier: e.g., busid */ 626 int unique_len; /* Length of unique field */ 627 device_t device; /* Device instance from newbus */ 628 struct cdev *devnode; /* Device number for mknod */ 629 int if_version; /* Highest interface version set */ 630 631 int flags; /* Flags to open(2) */ 632 633 /* Locks */ 634 struct mtx vbl_lock; /* protects vblank operations */ 635 struct mtx dma_lock; /* protects dev->dma */ 636 struct mtx irq_lock; /* protects irq condition checks */ 637 struct mtx dev_lock; /* protects everything else */ 638 DRM_SPINTYPE drw_lock; 639 DRM_SPINTYPE tsk_lock; 640 641 /* Usage Counters */ 642 int open_count; /* Outstanding files open */ 643 int buf_use; /* Buffers in use -- cannot alloc */ 644 645 /* Performance counters */ 646 unsigned long counters; 647 enum drm_stat_type types[15]; 648 atomic_t counts[15]; 649 650 /* Authentication */ 651 drm_file_list_t files; 652 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 653 654 /* Linked list of mappable regions. Protected by dev_lock */ 655 drm_map_list_t maplist; 656 657 drm_local_map_t **context_sareas; 658 int max_context; 659 660 drm_lock_data_t lock; /* Information on hardware lock */ 661 662 /* DMA queues (contexts) */ 663 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 664 665 /* Context support */ 666 int irq; /* Interrupt used by board */ 667 int irq_enabled; /* True if the irq handler is enabled */ 668 int irqrid; /* Interrupt used by board */ 669 struct resource *irqr; /* Resource for interrupt used by board */ 670 void *irqh; /* Handle from bus_setup_intr */ 671 672 /* Storage of resource pointers for drm_get_resource_* */ 673 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 674 int pcirid[DRM_MAX_PCI_RESOURCE]; 675 676 int pci_domain; 677 int pci_bus; 678 int pci_slot; 679 int pci_func; 680 681 atomic_t context_flag; /* Context swapping flag */ 682 int last_context; /* Last current context */ 683 684 int vblank_disable_allowed; 685 atomic_t vbl_signal_pending; /* number of signals pending on all crtcs */ 686 struct callout vblank_disable_timer; 687 u32 max_vblank_count; /* size of vblank counter register */ 688 struct drm_vblank_info *vblank; /* per crtc vblank info */ 689 int num_crtcs; 690 691 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 692 693 /* Sysctl support */ 694 struct drm_sysctl_info *sysctl; 695 696 drm_agp_head_t *agp; 697 drm_sg_mem_t *sg; /* Scatter gather memory */ 698 atomic_t *ctx_bitmap; 699 void *dev_private; 700 unsigned int agp_buffer_token; 701 drm_local_map_t *agp_buffer_map; 702 703 struct unrhdr *drw_unrhdr; 704 /* RB tree of drawable infos */ 705 RB_HEAD(drawable_tree, bsd_drm_drawable_info) drw_head; 706 707 struct task locked_task; 708 void (*locked_task_call)(struct drm_device *dev); 709}; 710 711static __inline__ int drm_core_check_feature(struct drm_device *dev, 712 int feature) 713{ 714 return ((dev->driver->driver_features & feature) ? 1 : 0); 715} 716 717#if __OS_HAS_AGP 718static inline int drm_core_has_AGP(struct drm_device *dev) 719{ 720 return drm_core_check_feature(dev, DRIVER_USE_AGP); 721} 722#else 723#define drm_core_has_AGP(dev) (0) 724#endif 725 726extern int drm_debug_flag; 727 728/* Device setup support (drm_drv.c) */ 729int drm_probe(device_t nbdev, drm_pci_id_list_t *idlist); 730int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist); 731void drm_close(void *data); 732int drm_detach(device_t nbdev); 733d_ioctl_t drm_ioctl; 734d_open_t drm_open; 735d_read_t drm_read; 736d_poll_t drm_poll; 737d_mmap_t drm_mmap; 738extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 739 740/* File operations helpers (drm_fops.c) */ 741extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 742 DRM_STRUCTPROC *p, 743 struct drm_device *dev); 744 745/* Memory management support (drm_memory.c) */ 746void drm_mem_init(void); 747void drm_mem_uninit(void); 748void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); 749void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 750void drm_ioremapfree(drm_local_map_t *map); 751int drm_mtrr_add(unsigned long offset, size_t size, int flags); 752int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 753 754int drm_context_switch(struct drm_device *dev, int old, int new); 755int drm_context_switch_complete(struct drm_device *dev, int new); 756 757int drm_ctxbitmap_init(struct drm_device *dev); 758void drm_ctxbitmap_cleanup(struct drm_device *dev); 759void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 760int drm_ctxbitmap_next(struct drm_device *dev); 761 762/* Locking IOCTL support (drm_lock.c) */ 763int drm_lock_take(struct drm_lock_data *lock_data, 764 unsigned int context); 765int drm_lock_transfer(struct drm_lock_data *lock_data, 766 unsigned int context); 767int drm_lock_free(struct drm_lock_data *lock_data, 768 unsigned int context); 769 770/* Buffer management support (drm_bufs.c) */ 771unsigned long drm_get_resource_start(struct drm_device *dev, 772 unsigned int resource); 773unsigned long drm_get_resource_len(struct drm_device *dev, 774 unsigned int resource); 775void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 776int drm_order(unsigned long size); 777int drm_addmap(struct drm_device *dev, unsigned long offset, 778 unsigned long size, 779 enum drm_map_type type, enum drm_map_flags flags, 780 drm_local_map_t **map_ptr); 781int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); 782int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request); 783int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); 784 785/* DMA support (drm_dma.c) */ 786int drm_dma_setup(struct drm_device *dev); 787void drm_dma_takedown(struct drm_device *dev); 788void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 789void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 790#define drm_core_reclaim_buffers drm_reclaim_buffers 791 792/* IRQ support (drm_irq.c) */ 793int drm_irq_install(struct drm_device *dev); 794int drm_irq_uninstall(struct drm_device *dev); 795irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 796void drm_driver_irq_preinstall(struct drm_device *dev); 797void drm_driver_irq_postinstall(struct drm_device *dev); 798void drm_driver_irq_uninstall(struct drm_device *dev); 799void drm_handle_vblank(struct drm_device *dev, int crtc); 800u32 drm_vblank_count(struct drm_device *dev, int crtc); 801int drm_vblank_get(struct drm_device *dev, int crtc); 802void drm_vblank_put(struct drm_device *dev, int crtc); 803int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 804int drm_vblank_init(struct drm_device *dev, int num_crtcs); 805void drm_vbl_send_signals(struct drm_device *dev, int crtc); 806int drm_modeset_ctl(struct drm_device *dev, void *data, 807 struct drm_file *file_priv); 808 809/* AGP/PCI Express/GART support (drm_agpsupport.c) */ 810int drm_device_is_agp(struct drm_device *dev); 811int drm_device_is_pcie(struct drm_device *dev); 812drm_agp_head_t *drm_agp_init(void); 813int drm_agp_acquire(struct drm_device *dev); 814int drm_agp_release(struct drm_device *dev); 815int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); 816int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); 817void *drm_agp_allocate_memory(size_t pages, u32 type); 818int drm_agp_free_memory(void *handle); 819int drm_agp_bind_memory(void *handle, off_t start); 820int drm_agp_unbind_memory(void *handle); 821int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); 822int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); 823int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); 824int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); 825 826/* Scatter Gather Support (drm_scatter.c) */ 827void drm_sg_cleanup(drm_sg_mem_t *entry); 828int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); 829 830/* sysctl support (drm_sysctl.h) */ 831extern int drm_sysctl_init(struct drm_device *dev); 832extern int drm_sysctl_cleanup(struct drm_device *dev); 833 834/* ATI PCIGART support (ati_pcigart.c) */ 835int drm_ati_pcigart_init(struct drm_device *dev, 836 struct drm_ati_pcigart_info *gart_info); 837int drm_ati_pcigart_cleanup(struct drm_device *dev, 838 struct drm_ati_pcigart_info *gart_info); 839 840/* Locking IOCTL support (drm_drv.c) */ 841int drm_lock(struct drm_device *dev, void *data, 842 struct drm_file *file_priv); 843int drm_unlock(struct drm_device *dev, void *data, 844 struct drm_file *file_priv); 845int drm_version(struct drm_device *dev, void *data, 846 struct drm_file *file_priv); 847int drm_setversion(struct drm_device *dev, void *data, 848 struct drm_file *file_priv); 849 850/* Misc. IOCTL support (drm_ioctl.c) */ 851int drm_irq_by_busid(struct drm_device *dev, void *data, 852 struct drm_file *file_priv); 853int drm_getunique(struct drm_device *dev, void *data, 854 struct drm_file *file_priv); 855int drm_setunique(struct drm_device *dev, void *data, 856 struct drm_file *file_priv); 857int drm_getmap(struct drm_device *dev, void *data, 858 struct drm_file *file_priv); 859int drm_getclient(struct drm_device *dev, void *data, 860 struct drm_file *file_priv); 861int drm_getstats(struct drm_device *dev, void *data, 862 struct drm_file *file_priv); 863int drm_noop(struct drm_device *dev, void *data, 864 struct drm_file *file_priv); 865 866/* Context IOCTL support (drm_context.c) */ 867int drm_resctx(struct drm_device *dev, void *data, 868 struct drm_file *file_priv); 869int drm_addctx(struct drm_device *dev, void *data, 870 struct drm_file *file_priv); 871int drm_modctx(struct drm_device *dev, void *data, 872 struct drm_file *file_priv); 873int drm_getctx(struct drm_device *dev, void *data, 874 struct drm_file *file_priv); 875int drm_switchctx(struct drm_device *dev, void *data, 876 struct drm_file *file_priv); 877int drm_newctx(struct drm_device *dev, void *data, 878 struct drm_file *file_priv); 879int drm_rmctx(struct drm_device *dev, void *data, 880 struct drm_file *file_priv); 881int drm_setsareactx(struct drm_device *dev, void *data, 882 struct drm_file *file_priv); 883int drm_getsareactx(struct drm_device *dev, void *data, 884 struct drm_file *file_priv); 885 886/* Drawable IOCTL support (drm_drawable.c) */ 887int drm_adddraw(struct drm_device *dev, void *data, 888 struct drm_file *file_priv); 889int drm_rmdraw(struct drm_device *dev, void *data, 890 struct drm_file *file_priv); 891int drm_update_draw(struct drm_device *dev, void *data, 892 struct drm_file *file_priv); 893struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, 894 int handle); 895 896/* Drawable support (drm_drawable.c) */ 897void drm_drawable_free_all(struct drm_device *dev); 898 899/* Authentication IOCTL support (drm_auth.c) */ 900int drm_getmagic(struct drm_device *dev, void *data, 901 struct drm_file *file_priv); 902int drm_authmagic(struct drm_device *dev, void *data, 903 struct drm_file *file_priv); 904 905/* Buffer management support (drm_bufs.c) */ 906int drm_addmap_ioctl(struct drm_device *dev, void *data, 907 struct drm_file *file_priv); 908int drm_rmmap_ioctl(struct drm_device *dev, void *data, 909 struct drm_file *file_priv); 910int drm_addbufs_ioctl(struct drm_device *dev, void *data, 911 struct drm_file *file_priv); 912int drm_infobufs(struct drm_device *dev, void *data, 913 struct drm_file *file_priv); 914int drm_markbufs(struct drm_device *dev, void *data, 915 struct drm_file *file_priv); 916int drm_freebufs(struct drm_device *dev, void *data, 917 struct drm_file *file_priv); 918int drm_mapbufs(struct drm_device *dev, void *data, 919 struct drm_file *file_priv); 920 921/* DMA support (drm_dma.c) */ 922int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 923 924/* IRQ support (drm_irq.c) */ 925int drm_control(struct drm_device *dev, void *data, 926 struct drm_file *file_priv); 927int drm_wait_vblank(struct drm_device *dev, void *data, 928 struct drm_file *file_priv); 929void drm_locked_tasklet(struct drm_device *dev, 930 void (*tasklet)(struct drm_device *dev)); 931 932/* AGP/GART support (drm_agpsupport.c) */ 933int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 934 struct drm_file *file_priv); 935int drm_agp_release_ioctl(struct drm_device *dev, void *data, 936 struct drm_file *file_priv); 937int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 938 struct drm_file *file_priv); 939int drm_agp_info_ioctl(struct drm_device *dev, void *data, 940 struct drm_file *file_priv); 941int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 942 struct drm_file *file_priv); 943int drm_agp_free_ioctl(struct drm_device *dev, void *data, 944 struct drm_file *file_priv); 945int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 946 struct drm_file *file_priv); 947int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 948 struct drm_file *file_priv); 949 950/* Scatter Gather Support (drm_scatter.c) */ 951int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 952 struct drm_file *file_priv); 953int drm_sg_free(struct drm_device *dev, void *data, 954 struct drm_file *file_priv); 955 956/* consistent PCI memory functions (drm_pci.c) */ 957drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 958 size_t align, dma_addr_t maxaddr); 959void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 960 961/* Inline replacements for drm_alloc and friends */ 962static __inline__ void * 963drm_alloc(size_t size, struct malloc_type *area) 964{ 965 return malloc(size, area, M_NOWAIT); 966} 967 968static __inline__ void * 969drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) 970{ 971 return malloc(size * nmemb, area, M_NOWAIT | M_ZERO); 972} 973 974static __inline__ void * 975drm_realloc(void *oldpt, size_t oldsize, size_t size, 976 struct malloc_type *area) 977{ 978 return reallocf(oldpt, size, area, M_NOWAIT); 979} 980 981static __inline__ void 982drm_free(void *pt, size_t size, struct malloc_type *area) 983{ 984 free(pt, area); 985} 986 987/* Inline replacements for DRM_IOREMAP macros */ 988static __inline__ void 989drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) 990{ 991 map->handle = drm_ioremap_wc(dev, map); 992} 993static __inline__ void 994drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 995{ 996 map->handle = drm_ioremap(dev, map); 997} 998static __inline__ void 999drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1000{ 1001 if ( map->handle && map->size ) 1002 drm_ioremapfree(map); 1003} 1004 1005static __inline__ struct drm_local_map * 1006drm_core_findmap(struct drm_device *dev, unsigned long offset) 1007{ 1008 drm_local_map_t *map; 1009 1010 DRM_SPINLOCK_ASSERT(&dev->dev_lock); 1011 TAILQ_FOREACH(map, &dev->maplist, link) { 1012 if (map->offset == offset) 1013 return map; 1014 } 1015 return NULL; 1016} 1017 1018static __inline__ void drm_core_dropmap(struct drm_map *map) 1019{ 1020} 1021 1022#endif /* __KERNEL__ */ 1023#endif /* _DRM_P_H_ */ 1024