drmP.h revision 164033
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 164033 2006-11-06 13:42:10Z rwatson $"); 36 37#ifndef _DRM_P_H_ 38#define _DRM_P_H_ 39 40#if defined(_KERNEL) || defined(__KERNEL__) 41 42typedef struct drm_device drm_device_t; 43typedef struct drm_file drm_file_t; 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 <vm/vm.h> 66#include <vm/pmap.h> 67#include <vm/vm_extern.h> 68#include <vm/vm_map.h> 69#include <vm/vm_param.h> 70#include <machine/param.h> 71#include <machine/pmap.h> 72#include <machine/bus.h> 73#include <machine/resource.h> 74#include <machine/sysarch.h> 75#include <sys/endian.h> 76#include <sys/mman.h> 77#if defined(__FreeBSD__) 78#include <sys/rman.h> 79#include <sys/memrange.h> 80#include <pci/agpvar.h> 81#include <sys/agpio.h> 82#if __FreeBSD_version >= 500000 83#include <sys/mutex.h> 84#include <dev/pci/pcivar.h> 85#include <sys/selinfo.h> 86#else /* __FreeBSD_version >= 500000 */ 87#include <pci/pcivar.h> 88#include <sys/select.h> 89#endif /* __FreeBSD_version < 500000 */ 90#elif defined(__NetBSD__) 91#include <machine/mtrr.h> 92#include <sys/vnode.h> 93#include <sys/select.h> 94#include <sys/device.h> 95#include <sys/resourcevar.h> 96#include <sys/lkm.h> 97#include <sys/agpio.h> 98#include <sys/ttycom.h> 99#include <uvm/uvm.h> 100#include <dev/pci/pcireg.h> 101#include <dev/pci/pcivar.h> 102#include <dev/pci/agpvar.h> 103#elif defined(__OpenBSD__) 104#include <sys/lkm.h> 105#include <uvm/uvm.h> 106#endif 107#include <sys/bus.h> 108 109#include "dev/drm/drm.h" 110#include "dev/drm/drm_linux_list.h" 111#include "dev/drm/drm_atomic.h" 112 113#ifdef __FreeBSD__ 114#include <opt_drm.h> 115#ifdef DRM_DEBUG 116#undef DRM_DEBUG 117#define DRM_DEBUG_DEFAULT_ON 1 118#endif /* DRM_DEBUG */ 119#endif 120 121#if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__) 122#include <sys/file.h> 123#include <sys/proc.h> 124#include <machine/../linux/linux.h> 125#include <machine/../linux/linux_proto.h> 126#else 127/* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't 128 * supported on this OS yet. 129 */ 130#undef DRM_LINUX 131#define DRM_LINUX 0 132#endif 133 134#define DRM_HASH_SIZE 16 /* Size of key hash table */ 135#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 136#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 137 138#define DRM_MEM_DMA 0 139#define DRM_MEM_SAREA 1 140#define DRM_MEM_DRIVER 2 141#define DRM_MEM_MAGIC 3 142#define DRM_MEM_IOCTLS 4 143#define DRM_MEM_MAPS 5 144#define DRM_MEM_BUFS 6 145#define DRM_MEM_SEGS 7 146#define DRM_MEM_PAGES 8 147#define DRM_MEM_FILES 9 148#define DRM_MEM_QUEUES 10 149#define DRM_MEM_CMDS 11 150#define DRM_MEM_MAPPINGS 12 151#define DRM_MEM_BUFLISTS 13 152#define DRM_MEM_AGPLISTS 14 153#define DRM_MEM_TOTALAGP 15 154#define DRM_MEM_BOUNDAGP 16 155#define DRM_MEM_CTXBITMAP 17 156#define DRM_MEM_STUB 18 157#define DRM_MEM_SGLISTS 19 158 159#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 160 161 /* Internal types and structures */ 162#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 163#define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 164#define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 165 166#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 167 168MALLOC_DECLARE(M_DRM); 169 170#define __OS_HAS_AGP 1 171 172#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 173#define DRM_DEV_UID 0 174#define DRM_DEV_GID 0 175 176#define wait_queue_head_t atomic_t 177#define DRM_WAKEUP(w) wakeup((void *)w) 178#define DRM_WAKEUP_INT(w) wakeup(w) 179#define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 180 181#if defined(__FreeBSD__) && __FreeBSD_version < 502109 182#define bus_alloc_resource_any(dev, type, rid, flags) \ 183 bus_alloc_resource(dev, type, rid, 0ul, ~0ul, 1, flags) 184#endif 185 186#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 187#define DRM_CURPROC curthread 188#define DRM_STRUCTPROC struct thread 189#define DRM_SPINTYPE struct mtx 190#define DRM_SPININIT(l,name) mtx_init(&l, name, NULL, MTX_DEF) 191#define DRM_SPINUNINIT(l) mtx_destroy(&l) 192#define DRM_SPINLOCK(l) mtx_lock(l) 193#define DRM_SPINUNLOCK(u) mtx_unlock(u); 194#define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 195#define DRM_CURRENTPID curthread->td_proc->p_pid 196#define DRM_LOCK() mtx_lock(&dev->dev_lock) 197#define DRM_UNLOCK() mtx_unlock(&dev->dev_lock) 198#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 199#else /* __FreeBSD__ && __FreeBSD_version >= 500000 */ 200#define DRM_CURPROC curproc 201#define DRM_STRUCTPROC struct proc 202#define DRM_SPINTYPE struct simplelock 203#define DRM_SPININIT(l,name) 204#define DRM_SPINUNINIT(l) 205#define DRM_SPINLOCK(l) 206#define DRM_SPINUNLOCK(u) 207#define DRM_SPINLOCK_ASSERT(l) 208#define DRM_CURRENTPID curproc->p_pid 209#define DRM_LOCK() 210#define DRM_UNLOCK() 211#define DRM_SYSCTL_HANDLER_ARGS SYSCTL_HANDLER_ARGS 212#define spldrm() spltty() 213#endif /* __NetBSD__ || __OpenBSD__ */ 214 215/* Currently our DRMFILE (filp) is a void * which is actually the pid 216 * of the current process. It should be a per-open unique pointer, but 217 * code for that is not yet written */ 218#define DRMFILE void * 219#define DRM_IRQ_ARGS void *arg 220typedef void irqreturn_t; 221#define IRQ_HANDLED /* nothing */ 222#define IRQ_NONE /* nothing */ 223 224enum { 225 DRM_IS_NOT_AGP, 226 DRM_IS_AGP, 227 DRM_MIGHT_BE_AGP 228}; 229#define DRM_AGP_MEM struct agp_memory_info 230 231#if defined(__FreeBSD__) 232#define DRM_DEVICE \ 233 drm_device_t *dev = kdev->si_drv1 234#define DRM_IOCTL_ARGS struct cdev *kdev, u_long cmd, caddr_t data, \ 235 int flags, DRM_STRUCTPROC *p, DRMFILE filp 236 237#define PAGE_ALIGN(addr) round_page(addr) 238/* DRM_SUSER returns true if the user is superuser */ 239#if __FreeBSD_version >= 700000 240#define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 241#else 242#define DRM_SUSER(p) (suser(p) == 0) 243#endif 244#define DRM_AGP_FIND_DEVICE() agp_find_device() 245#define DRM_MTRR_WC MDF_WRITECOMBINE 246#define jiffies ticks 247 248#else /* __FreeBSD__ */ 249 250#if defined(__NetBSD__) 251#define DRM_DEVICE \ 252 drm_device_t *dev = device_lookup(&drm_cd, minor(kdev)) 253#elif defined(__OpenBSD__) 254#define DRM_DEVICE \ 255 drm_device_t *dev = (device_lookup(&drm_cd, \ 256 minor(kdev)))->dv_cfdata->cf_driver->cd_devs[minor(kdev)] 257#endif /* __OpenBSD__ */ 258#define DRM_IOCTL_ARGS dev_t kdev, u_long cmd, caddr_t data, \ 259 int flags, DRM_STRUCTPROC *p, DRMFILE filp 260 261#define CDEV_MAJOR 34 262#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) 263/* DRM_SUSER returns true if the user is superuser */ 264#define DRM_SUSER(p) (suser(p->p_ucred, &p->p_acflag) == 0) 265#define DRM_AGP_FIND_DEVICE() agp_find_device(0) 266#define DRM_MTRR_WC MTRR_TYPE_WC 267#define jiffies hardclock_ticks 268 269typedef drm_device_t *device_t; 270extern struct cfdriver drm_cd; 271#endif /* !__FreeBSD__ */ 272 273/* Capabilities taken from src/sys/dev/pci/pcireg.h. */ 274#ifndef PCIY_AGP 275#define PCIY_AGP 0x02 276#endif 277 278#ifndef PCIY_EXPRESS 279#define PCIY_EXPRESS 0x10 280#endif 281 282typedef unsigned long dma_addr_t; 283typedef u_int64_t u64; 284typedef u_int32_t u32; 285typedef u_int16_t u16; 286typedef u_int8_t u8; 287 288/* DRM_READMEMORYBARRIER() prevents reordering of reads. 289 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 290 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 291 */ 292#if defined(__i386__) 293#define DRM_READMEMORYBARRIER() __asm __volatile( \ 294 "lock; addl $0,0(%%esp)" : : : "memory"); 295#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); 296#define DRM_MEMORYBARRIER() __asm __volatile( \ 297 "lock; addl $0,0(%%esp)" : : : "memory"); 298#elif defined(__alpha__) 299#define DRM_READMEMORYBARRIER() alpha_mb(); 300#define DRM_WRITEMEMORYBARRIER() alpha_wmb(); 301#define DRM_MEMORYBARRIER() alpha_mb(); 302#elif defined(__amd64__) 303#define DRM_READMEMORYBARRIER() __asm __volatile( \ 304 "lock; addl $0,0(%%rsp)" : : : "memory"); 305#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); 306#define DRM_MEMORYBARRIER() __asm __volatile( \ 307 "lock; addl $0,0(%%rsp)" : : : "memory"); 308#endif 309 310#ifdef __FreeBSD__ 311#define DRM_READ8(map, offset) \ 312 *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) 313#define DRM_READ16(map, offset) \ 314 *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) 315#define DRM_READ32(map, offset) \ 316 *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) 317#define DRM_WRITE8(map, offset, val) \ 318 *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) = val 319#define DRM_WRITE16(map, offset, val) \ 320 *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) = val 321#define DRM_WRITE32(map, offset, val) \ 322 *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) = val 323 324#define DRM_VERIFYAREA_READ( uaddr, size ) \ 325 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 326 327#else /* __FreeBSD__ */ 328 329typedef vaddr_t vm_offset_t; 330 331#define DRM_READ8(map, offset) \ 332 bus_space_read_1( (map)->bst, (map)->bsh, (offset)) 333#define DRM_READ16(map, offset) \ 334 bus_space_read_2( (map)->bst, (map)->bsh, (offset)) 335#define DRM_READ32(map, offset) \ 336 bus_space_read_4( (map)->bst, (map)->bsh, (offset)) 337#define DRM_WRITE8(map, offset, val) \ 338 bus_space_write_1((map)->bst, (map)->bsh, (offset), (val)) 339#define DRM_WRITE16(map, offset, val) \ 340 bus_space_write_2((map)->bst, (map)->bsh, (offset), (val)) 341#define DRM_WRITE32(map, offset, val) \ 342 bus_space_write_4((map)->bst, (map)->bsh, (offset), (val)) 343 344#define DRM_VERIFYAREA_READ( uaddr, size ) \ 345 (!uvm_useracc((caddr_t)uaddr, size, VM_PROT_READ)) 346#endif /* !__FreeBSD__ */ 347 348#define DRM_COPY_TO_USER_IOCTL(user, kern, size) \ 349 if ( IOCPARM_LEN(cmd) != size) \ 350 return EINVAL; \ 351 *user = kern; 352#define DRM_COPY_FROM_USER_IOCTL(kern, user, size) \ 353 if ( IOCPARM_LEN(cmd) != size) \ 354 return EINVAL; \ 355 kern = *user; 356#define DRM_COPY_TO_USER(user, kern, size) \ 357 copyout(kern, user, size) 358#define DRM_COPY_FROM_USER(kern, user, size) \ 359 copyin(user, kern, size) 360#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 361 copyin(arg2, arg1, arg3) 362#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 363 copyout(arg2, arg1, arg3) 364#if __FreeBSD_version > 500000 365#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 366 ((val) = fuword32(uaddr), 0) 367#else 368#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 369 ((val) = fuword(uaddr), 0) 370#endif 371 372#define cpu_to_le32(x) htole32(x) 373#define le32_to_cpu(x) le32toh(x) 374 375#define DRM_ERR(v) v 376#define DRM_HZ hz 377#define DRM_UDELAY(udelay) DELAY(udelay) 378#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ 379 380#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 381 (_map) = (_dev)->context_sareas[_ctx]; \ 382} while(0) 383 384#define DRM_GET_PRIV_WITH_RETURN(_priv, _filp) \ 385do { \ 386 if (_filp != (DRMFILE)(intptr_t)DRM_CURRENTPID) { \ 387 DRM_ERROR("filp doesn't match curproc\n"); \ 388 return EINVAL; \ 389 } \ 390 _priv = drm_find_file_by_proc(dev, DRM_CURPROC); \ 391 if (_priv == NULL) { \ 392 DRM_ERROR("can't find authenticator\n"); \ 393 return EINVAL; \ 394 } \ 395} while (0) 396 397#define LOCK_TEST_WITH_RETURN(dev, filp) \ 398do { \ 399 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 400 dev->lock.filp != filp) { \ 401 DRM_ERROR("%s called without lock held\n", \ 402 __FUNCTION__); \ 403 return EINVAL; \ 404 } \ 405} while (0) 406 407#define DRM_GETSAREA() \ 408do { \ 409 drm_local_map_t *map; \ 410 DRM_SPINLOCK_ASSERT(&dev->dev_lock); \ 411 TAILQ_FOREACH(map, &dev->maplist, link) { \ 412 if (map->type == _DRM_SHM && \ 413 map->flags & _DRM_CONTAINS_LOCK) { \ 414 dev_priv->sarea = map; \ 415 break; \ 416 } \ 417 } \ 418} while (0) 419 420#if defined(__FreeBSD__) && __FreeBSD_version > 500000 421#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 422for ( ret = 0 ; !ret && !(condition) ; ) { \ 423 DRM_UNLOCK(); \ 424 mtx_lock(&dev->irq_lock); \ 425 if (!(condition)) \ 426 ret = msleep(&(queue), &dev->irq_lock, \ 427 PZERO | PCATCH, "drmwtq", (timeout)); \ 428 mtx_unlock(&dev->irq_lock); \ 429 DRM_LOCK(); \ 430} 431#else 432#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 433for ( ret = 0 ; !ret && !(condition) ; ) { \ 434 int s = spldrm(); \ 435 if (!(condition)) \ 436 ret = tsleep( &(queue), PZERO | PCATCH, \ 437 "drmwtq", (timeout) ); \ 438 splx(s); \ 439} 440#endif 441 442#define DRM_ERROR(fmt, arg...) \ 443 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 444 DRM_CURRENTPID, __func__ , ## arg) 445 446#define DRM_INFO(fmt, arg...) printf("info: [" DRM_NAME "] " fmt , ## arg) 447 448#define DRM_DEBUG(fmt, arg...) do { \ 449 if (drm_debug_flag) \ 450 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 451 __func__ , ## arg); \ 452} while (0) 453 454typedef struct drm_pci_id_list 455{ 456 int vendor; 457 int device; 458 long driver_private; 459 char *name; 460} drm_pci_id_list_t; 461 462#define DRM_AUTH 0x1 463#define DRM_MASTER 0x2 464#define DRM_ROOT_ONLY 0x4 465typedef struct drm_ioctl_desc { 466 int (*func)(DRM_IOCTL_ARGS); 467 int flags; 468} drm_ioctl_desc_t; 469 470typedef struct drm_magic_entry { 471 drm_magic_t magic; 472 struct drm_file *priv; 473 struct drm_magic_entry *next; 474} drm_magic_entry_t; 475 476typedef struct drm_magic_head { 477 struct drm_magic_entry *head; 478 struct drm_magic_entry *tail; 479} drm_magic_head_t; 480 481typedef struct drm_buf { 482 int idx; /* Index into master buflist */ 483 int total; /* Buffer size */ 484 int order; /* log-base-2(total) */ 485 int used; /* Amount of buffer in use (for DMA) */ 486 unsigned long offset; /* Byte offset (used internally) */ 487 void *address; /* Address of buffer */ 488 unsigned long bus_address; /* Bus address of buffer */ 489 struct drm_buf *next; /* Kernel-only: used for free list */ 490 __volatile__ int pending; /* On hardware DMA queue */ 491 DRMFILE filp; /* Unique identifier of holding process */ 492 int context; /* Kernel queue for this buffer */ 493 enum { 494 DRM_LIST_NONE = 0, 495 DRM_LIST_FREE = 1, 496 DRM_LIST_WAIT = 2, 497 DRM_LIST_PEND = 3, 498 DRM_LIST_PRIO = 4, 499 DRM_LIST_RECLAIM = 5 500 } list; /* Which list we're on */ 501 502 int dev_priv_size; /* Size of buffer private stoarge */ 503 void *dev_private; /* Per-buffer private storage */ 504} drm_buf_t; 505 506typedef struct drm_freelist { 507 int initialized; /* Freelist in use */ 508 atomic_t count; /* Number of free buffers */ 509 drm_buf_t *next; /* End pointer */ 510 511 int low_mark; /* Low water mark */ 512 int high_mark; /* High water mark */ 513} drm_freelist_t; 514 515typedef struct drm_dma_handle { 516 void *vaddr; 517 bus_addr_t busaddr; 518#if defined(__FreeBSD__) 519 bus_dma_tag_t tag; 520 bus_dmamap_t map; 521#elif defined(__NetBSD__) 522 bus_dma_segment_t seg; 523#endif 524} drm_dma_handle_t; 525 526typedef struct drm_buf_entry { 527 int buf_size; 528 int buf_count; 529 drm_buf_t *buflist; 530 int seg_count; 531 drm_dma_handle_t **seglist; 532 int page_order; 533 534 drm_freelist_t freelist; 535} drm_buf_entry_t; 536 537typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 538struct drm_file { 539 TAILQ_ENTRY(drm_file) link; 540 int authenticated; 541 int master; 542 int minor; 543 pid_t pid; 544 uid_t uid; 545 int refs; 546 drm_magic_t magic; 547 unsigned long ioctl_count; 548 void *driver_priv; 549}; 550 551typedef struct drm_lock_data { 552 drm_hw_lock_t *hw_lock; /* Hardware lock */ 553 DRMFILE filp; /* Unique identifier of holding process (NULL is kernel)*/ 554 int lock_queue; /* Queue of blocked processes */ 555 unsigned long lock_time; /* Time of last lock in jiffies */ 556} drm_lock_data_t; 557 558/* This structure, in the drm_device_t, is always initialized while the device 559 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 560 * when set marks that no further bufs may be allocated until device teardown 561 * occurs (when the last open of the device has closed). The high/low 562 * watermarks of bufs are only touched by the X Server, and thus not 563 * concurrently accessed, so no locking is needed. 564 */ 565typedef struct drm_device_dma { 566 drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; 567 int buf_count; 568 drm_buf_t **buflist; /* Vector of pointers info bufs */ 569 int seg_count; 570 int page_count; 571 unsigned long *pagelist; 572 unsigned long byte_count; 573 enum { 574 _DRM_DMA_USE_AGP = 0x01, 575 _DRM_DMA_USE_SG = 0x02 576 } flags; 577} drm_device_dma_t; 578 579typedef struct drm_agp_mem { 580 void *handle; 581 unsigned long bound; /* address */ 582 int pages; 583 struct drm_agp_mem *prev; 584 struct drm_agp_mem *next; 585} drm_agp_mem_t; 586 587typedef struct drm_agp_head { 588 device_t agpdev; 589 struct agp_info info; 590 const char *chipset; 591 drm_agp_mem_t *memory; 592 unsigned long mode; 593 int enabled; 594 int acquired; 595 unsigned long base; 596 int mtrr; 597 int cant_use_aperture; 598 unsigned long page_mask; 599} drm_agp_head_t; 600 601typedef struct drm_sg_mem { 602 unsigned long handle; 603 void *virtual; 604 int pages; 605 dma_addr_t *busaddr; 606 drm_dma_handle_t *dmah; /* Handle to PCI memory for ATI PCIGART table */ 607} drm_sg_mem_t; 608 609typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; 610 611typedef struct drm_local_map { 612 unsigned long offset; /* Physical address (0 for SAREA)*/ 613 unsigned long size; /* Physical size (bytes) */ 614 drm_map_type_t type; /* Type of memory mapped */ 615 drm_map_flags_t flags; /* Flags */ 616 void *handle; /* User-space: "Handle" to pass to mmap */ 617 /* Kernel-space: kernel-virtual address */ 618 int mtrr; /* Boolean: MTRR used */ 619 /* Private data */ 620 int rid; /* PCI resource ID for bus_space */ 621 struct resource *bsr; 622 bus_space_tag_t bst; 623 bus_space_handle_t bsh; 624 drm_dma_handle_t *dmah; 625 TAILQ_ENTRY(drm_local_map) link; 626} drm_local_map_t; 627 628TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig); 629typedef struct drm_vbl_sig { 630 TAILQ_ENTRY(drm_vbl_sig) link; 631 unsigned int sequence; 632 int signo; 633 int pid; 634} drm_vbl_sig_t; 635 636/* location of GART table */ 637#define DRM_ATI_GART_MAIN 1 638#define DRM_ATI_GART_FB 2 639 640typedef struct ati_pcigart_info { 641 int gart_table_location; 642 int is_pcie; 643 void *addr; 644 dma_addr_t bus_addr; 645 drm_local_map_t mapping; 646} drm_ati_pcigart_info; 647 648struct drm_driver_info { 649 int (*load)(struct drm_device *, unsigned long flags); 650 int (*firstopen)(struct drm_device *); 651 int (*open)(struct drm_device *, drm_file_t *); 652 void (*preclose)(struct drm_device *, void *filp); 653 void (*postclose)(struct drm_device *, drm_file_t *); 654 void (*lastclose)(struct drm_device *); 655 int (*unload)(struct drm_device *); 656 void (*reclaim_buffers_locked)(struct drm_device *, void *filp); 657 int (*dma_ioctl)(DRM_IOCTL_ARGS); 658 void (*dma_ready)(struct drm_device *); 659 int (*dma_quiescent)(struct drm_device *); 660 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 661 drm_lock_flags_t flags); 662 int (*dma_flush_unblock)(struct drm_device *, int context, 663 drm_lock_flags_t flags); 664 int (*context_ctor)(struct drm_device *dev, int context); 665 int (*context_dtor)(struct drm_device *dev, int context); 666 int (*kernel_context_switch)(struct drm_device *dev, int old, 667 int new); 668 int (*kernel_context_switch_unlock)(struct drm_device *dev); 669 void (*irq_preinstall)(drm_device_t *dev); 670 void (*irq_postinstall)(drm_device_t *dev); 671 void (*irq_uninstall)(drm_device_t *dev); 672 void (*irq_handler)(DRM_IRQ_ARGS); 673 int (*vblank_wait)(drm_device_t *dev, unsigned int *sequence); 674 675 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 676 677 /** 678 * Called by \c drm_device_is_agp. Typically used to determine if a 679 * card is really attached to AGP or not. 680 * 681 * \param dev DRM device handle 682 * 683 * \returns 684 * One of three values is returned depending on whether or not the 685 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 686 * (return of 1), or may or may not be AGP (return of 2). 687 */ 688 int (*device_is_agp) (struct drm_device * dev); 689 690 drm_ioctl_desc_t *ioctls; 691 int max_ioctl; 692 693 int buf_priv_size; 694 695 int major; 696 int minor; 697 int patchlevel; 698 const char *name; /* Simple driver name */ 699 const char *desc; /* Longer driver name */ 700 const char *date; /* Date of last major changes. */ 701 702 unsigned use_agp :1; 703 unsigned require_agp :1; 704 unsigned use_sg :1; 705 unsigned use_dma :1; 706 unsigned use_pci_dma :1; 707 unsigned use_dma_queue :1; 708 unsigned use_irq :1; 709 unsigned use_vbl_irq :1; 710 unsigned use_mtrr :1; 711}; 712 713/* Length for the array of resource pointers for drm_get_resource_*. */ 714#define DRM_MAX_PCI_RESOURCE 3 715 716/** 717 * DRM device functions structure 718 */ 719struct drm_device { 720#if defined(__NetBSD__) || defined(__OpenBSD__) 721 struct device device; /* softc is an extension of struct device */ 722#endif 723 724 struct drm_driver_info driver; 725 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 726 727 u_int16_t pci_device; /* PCI device id */ 728 u_int16_t pci_vendor; /* PCI vendor id */ 729 730 char *unique; /* Unique identifier: e.g., busid */ 731 int unique_len; /* Length of unique field */ 732#ifdef __FreeBSD__ 733 device_t device; /* Device instance from newbus */ 734#endif 735 struct cdev *devnode; /* Device number for mknod */ 736 int if_version; /* Highest interface version set */ 737 738 int flags; /* Flags to open(2) */ 739 740 /* Locks */ 741#if defined(__FreeBSD__) && __FreeBSD_version > 500000 742 struct mtx dma_lock; /* protects dev->dma */ 743 struct mtx irq_lock; /* protects irq condition checks */ 744 struct mtx dev_lock; /* protects everything else */ 745#endif 746 /* Usage Counters */ 747 int open_count; /* Outstanding files open */ 748 int buf_use; /* Buffers in use -- cannot alloc */ 749 750 /* Performance counters */ 751 unsigned long counters; 752 drm_stat_type_t types[15]; 753 atomic_t counts[15]; 754 755 /* Authentication */ 756 drm_file_list_t files; 757 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 758 759 /* Linked list of mappable regions. Protected by dev_lock */ 760 drm_map_list_t maplist; 761 762 drm_local_map_t **context_sareas; 763 int max_context; 764 765 drm_lock_data_t lock; /* Information on hardware lock */ 766 767 /* DMA queues (contexts) */ 768 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 769 770 /* Context support */ 771 int irq; /* Interrupt used by board */ 772 int irq_enabled; /* True if the irq handler is enabled */ 773#ifdef __FreeBSD__ 774 int irqrid; /* Interrupt used by board */ 775 struct resource *irqr; /* Resource for interrupt used by board */ 776#elif defined(__NetBSD__) || defined(__OpenBSD__) 777 struct pci_attach_args pa; 778#endif 779 void *irqh; /* Handle from bus_setup_intr */ 780 781 /* Storage of resource pointers for drm_get_resource_* */ 782 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 783 int pcirid[DRM_MAX_PCI_RESOURCE]; 784 785 int pci_domain; 786 int pci_bus; 787 int pci_slot; 788 int pci_func; 789 790 atomic_t context_flag; /* Context swapping flag */ 791 int last_context; /* Last current context */ 792 int vbl_queue; /* vbl wait channel */ 793 atomic_t vbl_received; 794 795#ifdef __FreeBSD__ 796 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 797#elif defined(__NetBSD__) 798 pid_t buf_pgid; 799#endif 800 801 /* Sysctl support */ 802 struct drm_sysctl_info *sysctl; 803 804 drm_agp_head_t *agp; 805 drm_sg_mem_t *sg; /* Scatter gather memory */ 806 atomic_t *ctx_bitmap; 807 void *dev_private; 808 unsigned int agp_buffer_token; 809 drm_local_map_t *agp_buffer_map; 810}; 811 812extern int drm_debug_flag; 813 814/* Device setup support (drm_drv.c) */ 815#ifdef __FreeBSD__ 816int drm_probe(device_t nbdev, drm_pci_id_list_t *idlist); 817int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist); 818int drm_detach(device_t nbdev); 819d_ioctl_t drm_ioctl; 820d_open_t drm_open; 821d_close_t drm_close; 822d_read_t drm_read; 823d_poll_t drm_poll; 824d_mmap_t drm_mmap; 825#elif defined(__NetBSD__) || defined(__OpenBSD__) 826int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist); 827int drm_attach(struct pci_attach_args *pa, dev_t kdev, drm_pci_id_list_t *idlist); 828dev_type_ioctl(drm_ioctl); 829dev_type_open(drm_open); 830dev_type_close(drm_close); 831dev_type_read(drm_read); 832dev_type_poll(drm_poll); 833dev_type_mmap(drm_mmap); 834#endif 835 836/* File operations helpers (drm_fops.c) */ 837#ifdef __FreeBSD__ 838extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 839 DRM_STRUCTPROC *p, drm_device_t *dev); 840extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev, 841 DRM_STRUCTPROC *p); 842#elif defined(__NetBSD__) || defined(__OpenBSD__) 843extern int drm_open_helper(dev_t kdev, int flags, int fmt, 844 DRM_STRUCTPROC *p, drm_device_t *dev); 845extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev, 846 DRM_STRUCTPROC *p); 847#endif /* __NetBSD__ || __OpenBSD__ */ 848 849/* Memory management support (drm_memory.c) */ 850void drm_mem_init(void); 851void drm_mem_uninit(void); 852void *drm_alloc(size_t size, int area); 853void *drm_calloc(size_t nmemb, size_t size, int area); 854void *drm_realloc(void *oldpt, size_t oldsize, size_t size, 855 int area); 856void drm_free(void *pt, size_t size, int area); 857void *drm_ioremap(drm_device_t *dev, drm_local_map_t *map); 858void drm_ioremapfree(drm_local_map_t *map); 859int drm_mtrr_add(unsigned long offset, size_t size, int flags); 860int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 861 862int drm_context_switch(drm_device_t *dev, int old, int new); 863int drm_context_switch_complete(drm_device_t *dev, int new); 864 865int drm_ctxbitmap_init(drm_device_t *dev); 866void drm_ctxbitmap_cleanup(drm_device_t *dev); 867void drm_ctxbitmap_free(drm_device_t *dev, int ctx_handle); 868int drm_ctxbitmap_next(drm_device_t *dev); 869 870/* Locking IOCTL support (drm_lock.c) */ 871int drm_lock_take(__volatile__ unsigned int *lock, 872 unsigned int context); 873int drm_lock_transfer(drm_device_t *dev, 874 __volatile__ unsigned int *lock, 875 unsigned int context); 876int drm_lock_free(drm_device_t *dev, 877 __volatile__ unsigned int *lock, 878 unsigned int context); 879 880/* Buffer management support (drm_bufs.c) */ 881unsigned long drm_get_resource_start(drm_device_t *dev, unsigned int resource); 882unsigned long drm_get_resource_len(drm_device_t *dev, unsigned int resource); 883void drm_rmmap(drm_device_t *dev, drm_local_map_t *map); 884int drm_order(unsigned long size); 885int drm_addmap(drm_device_t * dev, unsigned long offset, unsigned long size, 886 drm_map_type_t type, drm_map_flags_t flags, 887 drm_local_map_t **map_ptr); 888int drm_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request); 889int drm_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request); 890int drm_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request); 891 892/* DMA support (drm_dma.c) */ 893int drm_dma_setup(drm_device_t *dev); 894void drm_dma_takedown(drm_device_t *dev); 895void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf); 896void drm_reclaim_buffers(drm_device_t *dev, DRMFILE filp); 897#define drm_core_reclaim_buffers drm_reclaim_buffers 898 899/* IRQ support (drm_irq.c) */ 900int drm_irq_install(drm_device_t *dev); 901int drm_irq_uninstall(drm_device_t *dev); 902irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 903void drm_driver_irq_preinstall(drm_device_t *dev); 904void drm_driver_irq_postinstall(drm_device_t *dev); 905void drm_driver_irq_uninstall(drm_device_t *dev); 906int drm_vblank_wait(drm_device_t *dev, unsigned int *vbl_seq); 907void drm_vbl_send_signals(drm_device_t *dev); 908 909/* AGP/PCI Express/GART support (drm_agpsupport.c) */ 910int drm_device_is_agp(drm_device_t *dev); 911int drm_device_is_pcie(drm_device_t *dev); 912drm_agp_head_t *drm_agp_init(void); 913int drm_agp_acquire(drm_device_t *dev); 914int drm_agp_release(drm_device_t *dev); 915int drm_agp_info(drm_device_t * dev, drm_agp_info_t *info); 916int drm_agp_enable(drm_device_t *dev, drm_agp_mode_t mode); 917void *drm_agp_allocate_memory(size_t pages, u32 type); 918int drm_agp_free_memory(void *handle); 919int drm_agp_bind_memory(void *handle, off_t start); 920int drm_agp_unbind_memory(void *handle); 921int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request); 922int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request); 923int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request); 924int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request); 925 926/* Scatter Gather Support (drm_scatter.c) */ 927void drm_sg_cleanup(drm_sg_mem_t *entry); 928 929#ifdef __FreeBSD__ 930/* sysctl support (drm_sysctl.h) */ 931extern int drm_sysctl_init(drm_device_t *dev); 932extern int drm_sysctl_cleanup(drm_device_t *dev); 933#endif /* __FreeBSD__ */ 934 935/* ATI PCIGART support (ati_pcigart.c) */ 936int drm_ati_pcigart_init(drm_device_t *dev, 937 drm_ati_pcigart_info *gart_info); 938int drm_ati_pcigart_cleanup(drm_device_t *dev, 939 drm_ati_pcigart_info *gart_info); 940 941/* Locking IOCTL support (drm_drv.c) */ 942int drm_lock(DRM_IOCTL_ARGS); 943int drm_unlock(DRM_IOCTL_ARGS); 944int drm_version(DRM_IOCTL_ARGS); 945int drm_setversion(DRM_IOCTL_ARGS); 946 947/* Misc. IOCTL support (drm_ioctl.c) */ 948int drm_irq_by_busid(DRM_IOCTL_ARGS); 949int drm_getunique(DRM_IOCTL_ARGS); 950int drm_setunique(DRM_IOCTL_ARGS); 951int drm_getmap(DRM_IOCTL_ARGS); 952int drm_getclient(DRM_IOCTL_ARGS); 953int drm_getstats(DRM_IOCTL_ARGS); 954int drm_noop(DRM_IOCTL_ARGS); 955 956/* Context IOCTL support (drm_context.c) */ 957int drm_resctx(DRM_IOCTL_ARGS); 958int drm_addctx(DRM_IOCTL_ARGS); 959int drm_modctx(DRM_IOCTL_ARGS); 960int drm_getctx(DRM_IOCTL_ARGS); 961int drm_switchctx(DRM_IOCTL_ARGS); 962int drm_newctx(DRM_IOCTL_ARGS); 963int drm_rmctx(DRM_IOCTL_ARGS); 964int drm_setsareactx(DRM_IOCTL_ARGS); 965int drm_getsareactx(DRM_IOCTL_ARGS); 966 967/* Drawable IOCTL support (drm_drawable.c) */ 968int drm_adddraw(DRM_IOCTL_ARGS); 969int drm_rmdraw(DRM_IOCTL_ARGS); 970 971/* Authentication IOCTL support (drm_auth.c) */ 972int drm_getmagic(DRM_IOCTL_ARGS); 973int drm_authmagic(DRM_IOCTL_ARGS); 974 975/* Buffer management support (drm_bufs.c) */ 976int drm_addmap_ioctl(DRM_IOCTL_ARGS); 977int drm_rmmap_ioctl(DRM_IOCTL_ARGS); 978int drm_addbufs_ioctl(DRM_IOCTL_ARGS); 979int drm_infobufs(DRM_IOCTL_ARGS); 980int drm_markbufs(DRM_IOCTL_ARGS); 981int drm_freebufs(DRM_IOCTL_ARGS); 982int drm_mapbufs(DRM_IOCTL_ARGS); 983 984/* DMA support (drm_dma.c) */ 985int drm_dma(DRM_IOCTL_ARGS); 986 987/* IRQ support (drm_irq.c) */ 988int drm_control(DRM_IOCTL_ARGS); 989int drm_wait_vblank(DRM_IOCTL_ARGS); 990 991/* AGP/GART support (drm_agpsupport.c) */ 992int drm_agp_acquire_ioctl(DRM_IOCTL_ARGS); 993int drm_agp_release_ioctl(DRM_IOCTL_ARGS); 994int drm_agp_enable_ioctl(DRM_IOCTL_ARGS); 995int drm_agp_info_ioctl(DRM_IOCTL_ARGS); 996int drm_agp_alloc_ioctl(DRM_IOCTL_ARGS); 997int drm_agp_free_ioctl(DRM_IOCTL_ARGS); 998int drm_agp_unbind_ioctl(DRM_IOCTL_ARGS); 999int drm_agp_bind_ioctl(DRM_IOCTL_ARGS); 1000 1001/* Scatter Gather Support (drm_scatter.c) */ 1002int drm_sg_alloc(DRM_IOCTL_ARGS); 1003int drm_sg_free(DRM_IOCTL_ARGS); 1004 1005/* consistent PCI memory functions (drm_pci.c) */ 1006drm_dma_handle_t *drm_pci_alloc(drm_device_t *dev, size_t size, size_t align, 1007 dma_addr_t maxaddr); 1008void drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah); 1009 1010/* Inline replacements for DRM_IOREMAP macros */ 1011static __inline__ void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1012{ 1013 map->handle = drm_ioremap(dev, map); 1014} 1015static __inline__ void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1016{ 1017 if ( map->handle && map->size ) 1018 drm_ioremapfree(map); 1019} 1020 1021static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, unsigned long offset) 1022{ 1023 drm_local_map_t *map; 1024 1025 DRM_SPINLOCK_ASSERT(&dev->dev_lock); 1026 TAILQ_FOREACH(map, &dev->maplist, link) { 1027 if (map->offset == offset) 1028 return map; 1029 } 1030 return NULL; 1031} 1032 1033static __inline__ void drm_core_dropmap(struct drm_map *map) 1034{ 1035} 1036 1037#endif /* __KERNEL__ */ 1038#endif /* _DRM_P_H_ */ 1039