drmP.h revision 152909
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 152909 2005-11-28 23:13:57Z anholt $"); 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#include <sys/proc.h> 54#include <sys/lock.h> 55#include <sys/fcntl.h> 56#include <sys/uio.h> 57#include <sys/filio.h> 58#include <sys/sysctl.h> 59#include <sys/bus.h> 60#include <sys/signalvar.h> 61#include <sys/poll.h> 62#include <vm/vm.h> 63#include <vm/pmap.h> 64#include <vm/vm_extern.h> 65#include <vm/vm_map.h> 66#include <vm/vm_param.h> 67#include <machine/param.h> 68#include <machine/pmap.h> 69#include <machine/bus.h> 70#include <machine/resource.h> 71#include <machine/sysarch.h> 72#include <sys/endian.h> 73#include <sys/mman.h> 74#if defined(__FreeBSD__) 75#include <sys/rman.h> 76#include <sys/memrange.h> 77#include <pci/agpvar.h> 78#include <sys/agpio.h> 79#if __FreeBSD_version >= 500000 80#include <sys/mutex.h> 81#include <dev/pci/pcivar.h> 82#include <sys/selinfo.h> 83#else /* __FreeBSD_version >= 500000 */ 84#include <pci/pcivar.h> 85#include <sys/select.h> 86#endif /* __FreeBSD_version < 500000 */ 87#elif defined(__NetBSD__) 88#include <machine/mtrr.h> 89#include <sys/vnode.h> 90#include <sys/select.h> 91#include <sys/device.h> 92#include <sys/resourcevar.h> 93#include <sys/lkm.h> 94#include <sys/agpio.h> 95#include <sys/ttycom.h> 96#include <uvm/uvm.h> 97#include <dev/pci/pcireg.h> 98#include <dev/pci/pcivar.h> 99#include <dev/pci/agpvar.h> 100#elif defined(__OpenBSD__) 101#include <sys/lkm.h> 102#include <uvm/uvm.h> 103#endif 104#include <sys/bus.h> 105 106#include "dev/drm/drm.h" 107#include "dev/drm/drm_linux_list.h" 108#include "dev/drm/drm_atomic.h" 109 110#ifdef __FreeBSD__ 111#include <opt_drm.h> 112#ifdef DRM_DEBUG 113#undef DRM_DEBUG 114#define DRM_DEBUG_DEFAULT_ON 1 115#endif /* DRM_DEBUG */ 116#endif 117 118#if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__) 119#include <sys/file.h> 120#include <sys/proc.h> 121#include <machine/../linux/linux.h> 122#include <machine/../linux/linux_proto.h> 123#else 124/* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't 125 * supported on this OS yet. 126 */ 127#undef DRM_LINUX 128#define DRM_LINUX 0 129#endif 130 131#define DRM_HASH_SIZE 16 /* Size of key hash table */ 132#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 133#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 134 135#define DRM_MEM_DMA 0 136#define DRM_MEM_SAREA 1 137#define DRM_MEM_DRIVER 2 138#define DRM_MEM_MAGIC 3 139#define DRM_MEM_IOCTLS 4 140#define DRM_MEM_MAPS 5 141#define DRM_MEM_BUFS 6 142#define DRM_MEM_SEGS 7 143#define DRM_MEM_PAGES 8 144#define DRM_MEM_FILES 9 145#define DRM_MEM_QUEUES 10 146#define DRM_MEM_CMDS 11 147#define DRM_MEM_MAPPINGS 12 148#define DRM_MEM_BUFLISTS 13 149#define DRM_MEM_AGPLISTS 14 150#define DRM_MEM_TOTALAGP 15 151#define DRM_MEM_BOUNDAGP 16 152#define DRM_MEM_CTXBITMAP 17 153#define DRM_MEM_STUB 18 154#define DRM_MEM_SGLISTS 19 155 156#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 157 158 /* Internal types and structures */ 159#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 160#define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 161#define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 162 163#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 164 165MALLOC_DECLARE(M_DRM); 166 167#define __OS_HAS_AGP 1 168 169#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 170#define DRM_DEV_UID 0 171#define DRM_DEV_GID 0 172 173#define wait_queue_head_t atomic_t 174#define DRM_WAKEUP(w) wakeup((void *)w) 175#define DRM_WAKEUP_INT(w) wakeup(w) 176#define DRM_INIT_WAITQUEUE(queue) do {} while (0) 177 178#if defined(__FreeBSD__) && __FreeBSD_version < 502109 179#define bus_alloc_resource_any(dev, type, rid, flags) \ 180 bus_alloc_resource(dev, type, rid, 0ul, ~0ul, 1, flags) 181#endif 182 183#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 184#define DRM_CURPROC curthread 185#define DRM_STRUCTPROC struct thread 186#define DRM_SPINTYPE struct mtx 187#define DRM_SPININIT(l,name) mtx_init(&l, name, NULL, MTX_DEF) 188#define DRM_SPINUNINIT(l) mtx_destroy(&l) 189#define DRM_SPINLOCK(l) mtx_lock(l) 190#define DRM_SPINUNLOCK(u) mtx_unlock(u); 191#define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 192#define DRM_CURRENTPID curthread->td_proc->p_pid 193#define DRM_LOCK() mtx_lock(&dev->dev_lock) 194#define DRM_UNLOCK() mtx_unlock(&dev->dev_lock) 195#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 196#else /* __FreeBSD__ && __FreeBSD_version >= 500000 */ 197#define DRM_CURPROC curproc 198#define DRM_STRUCTPROC struct proc 199#define DRM_SPINTYPE struct simplelock 200#define DRM_SPININIT(l,name) 201#define DRM_SPINUNINIT(l) 202#define DRM_SPINLOCK(l) 203#define DRM_SPINUNLOCK(u) 204#define DRM_SPINLOCK_ASSERT(l) 205#define DRM_CURRENTPID curproc->p_pid 206#define DRM_LOCK() 207#define DRM_UNLOCK() 208#define DRM_SYSCTL_HANDLER_ARGS SYSCTL_HANDLER_ARGS 209#define spldrm() spltty() 210#endif /* __NetBSD__ || __OpenBSD__ */ 211 212/* Currently our DRMFILE (filp) is a void * which is actually the pid 213 * of the current process. It should be a per-open unique pointer, but 214 * code for that is not yet written */ 215#define DRMFILE void * 216#define DRM_IRQ_ARGS void *arg 217typedef void irqreturn_t; 218#define IRQ_HANDLED /* nothing */ 219#define IRQ_NONE /* nothing */ 220 221enum { 222 DRM_IS_NOT_AGP, 223 DRM_MIGHT_BE_AGP, 224 DRM_IS_AGP 225}; 226#define DRM_AGP_MEM struct agp_memory_info 227 228#if defined(__FreeBSD__) 229#define DRM_DEVICE \ 230 drm_device_t *dev = kdev->si_drv1 231#define DRM_IOCTL_ARGS struct cdev *kdev, u_long cmd, caddr_t data, \ 232 int flags, DRM_STRUCTPROC *p, DRMFILE filp 233 234#define PAGE_ALIGN(addr) round_page(addr) 235/* DRM_SUSER returns true if the user is superuser */ 236#define DRM_SUSER(p) (suser(p) == 0) 237#define DRM_AGP_FIND_DEVICE() agp_find_device() 238#define DRM_MTRR_WC MDF_WRITECOMBINE 239#define jiffies ticks 240 241#else /* __FreeBSD__ */ 242 243#if defined(__NetBSD__) 244#define DRM_DEVICE \ 245 drm_device_t *dev = device_lookup(&drm_cd, minor(kdev)) 246#elif defined(__OpenBSD__) 247#define DRM_DEVICE \ 248 drm_device_t *dev = (device_lookup(&drm_cd, \ 249 minor(kdev)))->dv_cfdata->cf_driver->cd_devs[minor(kdev)] 250#endif /* __OpenBSD__ */ 251#define DRM_IOCTL_ARGS dev_t kdev, u_long cmd, caddr_t data, \ 252 int flags, DRM_STRUCTPROC *p, DRMFILE filp 253 254#define CDEV_MAJOR 34 255#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) 256/* DRM_SUSER returns true if the user is superuser */ 257#define DRM_SUSER(p) (suser(p->p_ucred, &p->p_acflag) == 0) 258#define DRM_AGP_FIND_DEVICE() agp_find_device(0) 259#define DRM_MTRR_WC MTRR_TYPE_WC 260#define jiffies hardclock_ticks 261 262typedef drm_device_t *device_t; 263extern struct cfdriver drm_cd; 264#endif /* !__FreeBSD__ */ 265 266/* Capabilities taken from src/sys/dev/pci/pcireg.h. */ 267#ifndef PCIY_AGP 268#define PCIY_AGP 0x02 269#endif 270 271#ifndef PCIY_EXPRESS 272#define PCIY_EXPRESS 0x10 273#endif 274 275typedef unsigned long dma_addr_t; 276typedef u_int32_t u32; 277typedef u_int16_t u16; 278typedef u_int8_t u8; 279 280/* DRM_READMEMORYBARRIER() prevents reordering of reads. 281 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 282 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 283 */ 284#if defined(__i386__) 285#define DRM_READMEMORYBARRIER() __asm __volatile( \ 286 "lock; addl $0,0(%%esp)" : : : "memory"); 287#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); 288#define DRM_MEMORYBARRIER() __asm __volatile( \ 289 "lock; addl $0,0(%%esp)" : : : "memory"); 290#elif defined(__alpha__) 291#define DRM_READMEMORYBARRIER() alpha_mb(); 292#define DRM_WRITEMEMORYBARRIER() alpha_wmb(); 293#define DRM_MEMORYBARRIER() alpha_mb(); 294#elif defined(__amd64__) 295#define DRM_READMEMORYBARRIER() __asm __volatile( \ 296 "lock; addl $0,0(%%rsp)" : : : "memory"); 297#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); 298#define DRM_MEMORYBARRIER() __asm __volatile( \ 299 "lock; addl $0,0(%%rsp)" : : : "memory"); 300#endif 301 302#ifdef __FreeBSD__ 303#define DRM_READ8(map, offset) \ 304 *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) 305#define DRM_READ16(map, offset) \ 306 *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) 307#define DRM_READ32(map, offset) \ 308 *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) 309#define DRM_WRITE8(map, offset, val) \ 310 *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) = val 311#define DRM_WRITE16(map, offset, val) \ 312 *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) = val 313#define DRM_WRITE32(map, offset, val) \ 314 *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) = val 315 316#define DRM_VERIFYAREA_READ( uaddr, size ) \ 317 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 318 319#else /* __FreeBSD__ */ 320 321typedef vaddr_t vm_offset_t; 322 323#define DRM_READ8(map, offset) \ 324 bus_space_read_1( (map)->bst, (map)->bsh, (offset)) 325#define DRM_READ16(map, offset) \ 326 bus_space_read_2( (map)->bst, (map)->bsh, (offset)) 327#define DRM_READ32(map, offset) \ 328 bus_space_read_4( (map)->bst, (map)->bsh, (offset)) 329#define DRM_WRITE8(map, offset, val) \ 330 bus_space_write_1((map)->bst, (map)->bsh, (offset), (val)) 331#define DRM_WRITE16(map, offset, val) \ 332 bus_space_write_2((map)->bst, (map)->bsh, (offset), (val)) 333#define DRM_WRITE32(map, offset, val) \ 334 bus_space_write_4((map)->bst, (map)->bsh, (offset), (val)) 335 336#define DRM_VERIFYAREA_READ( uaddr, size ) \ 337 (!uvm_useracc((caddr_t)uaddr, size, VM_PROT_READ)) 338#endif /* !__FreeBSD__ */ 339 340#define DRM_COPY_TO_USER_IOCTL(user, kern, size) \ 341 if ( IOCPARM_LEN(cmd) != size) \ 342 return EINVAL; \ 343 *user = kern; 344#define DRM_COPY_FROM_USER_IOCTL(kern, user, size) \ 345 if ( IOCPARM_LEN(cmd) != size) \ 346 return EINVAL; \ 347 kern = *user; 348#define DRM_COPY_TO_USER(user, kern, size) \ 349 copyout(kern, user, size) 350#define DRM_COPY_FROM_USER(kern, user, size) \ 351 copyin(user, kern, size) 352#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 353 copyin(arg2, arg1, arg3) 354#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 355 copyout(arg2, arg1, arg3) 356#if __FreeBSD_version > 500000 357#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 358 ((val) = fuword32(uaddr), 0) 359#else 360#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 361 ((val) = fuword(uaddr), 0) 362#endif 363 364#define cpu_to_le32(x) htole32(x) 365#define le32_to_cpu(x) le32toh(x) 366 367#define DRM_ERR(v) v 368#define DRM_HZ hz 369#define DRM_UDELAY(udelay) DELAY(udelay) 370#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ 371 372#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 373 (_map) = (_dev)->context_sareas[_ctx]; \ 374} while(0) 375 376#define DRM_GET_PRIV_WITH_RETURN(_priv, _filp) \ 377do { \ 378 if (_filp != (DRMFILE)(intptr_t)DRM_CURRENTPID) { \ 379 DRM_ERROR("filp doesn't match curproc\n"); \ 380 return EINVAL; \ 381 } \ 382 _priv = drm_find_file_by_proc(dev, DRM_CURPROC); \ 383 if (_priv == NULL) { \ 384 DRM_ERROR("can't find authenticator\n"); \ 385 return EINVAL; \ 386 } \ 387} while (0) 388 389#define LOCK_TEST_WITH_RETURN(dev, filp) \ 390do { \ 391 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 392 dev->lock.filp != filp) { \ 393 DRM_ERROR("%s called without lock held\n", \ 394 __FUNCTION__); \ 395 return EINVAL; \ 396 } \ 397} while (0) 398 399#define DRM_GETSAREA() \ 400do { \ 401 drm_local_map_t *map; \ 402 DRM_SPINLOCK_ASSERT(&dev->dev_lock); \ 403 TAILQ_FOREACH(map, &dev->maplist, link) { \ 404 if (map->type == _DRM_SHM && \ 405 map->flags & _DRM_CONTAINS_LOCK) { \ 406 dev_priv->sarea = map; \ 407 break; \ 408 } \ 409 } \ 410} while (0) 411 412#if defined(__FreeBSD__) && __FreeBSD_version > 500000 413#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 414for ( ret = 0 ; !ret && !(condition) ; ) { \ 415 DRM_UNLOCK(); \ 416 mtx_lock(&dev->irq_lock); \ 417 if (!(condition)) \ 418 ret = msleep(&(queue), &dev->irq_lock, \ 419 PZERO | PCATCH, "drmwtq", (timeout)); \ 420 mtx_unlock(&dev->irq_lock); \ 421 DRM_LOCK(); \ 422} 423#else 424#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 425for ( ret = 0 ; !ret && !(condition) ; ) { \ 426 int s = spldrm(); \ 427 if (!(condition)) \ 428 ret = tsleep( &(queue), PZERO | PCATCH, \ 429 "drmwtq", (timeout) ); \ 430 splx(s); \ 431} 432#endif 433 434#define DRM_ERROR(fmt, arg...) \ 435 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 436 DRM_CURRENTPID, __func__ , ## arg) 437 438#define DRM_INFO(fmt, arg...) printf("info: [" DRM_NAME "] " fmt , ## arg) 439 440#define DRM_DEBUG(fmt, arg...) do { \ 441 if (drm_debug_flag) \ 442 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 443 __func__ , ## arg); \ 444} while (0) 445 446typedef struct drm_pci_id_list 447{ 448 int vendor; 449 int device; 450 long driver_private; 451 char *name; 452} drm_pci_id_list_t; 453 454#define DRM_AUTH 0x1 455#define DRM_MASTER 0x2 456#define DRM_ROOT_ONLY 0x4 457typedef struct drm_ioctl_desc { 458 int (*func)(DRM_IOCTL_ARGS); 459 int flags; 460} drm_ioctl_desc_t; 461 462typedef struct drm_magic_entry { 463 drm_magic_t magic; 464 struct drm_file *priv; 465 struct drm_magic_entry *next; 466} drm_magic_entry_t; 467 468typedef struct drm_magic_head { 469 struct drm_magic_entry *head; 470 struct drm_magic_entry *tail; 471} drm_magic_head_t; 472 473typedef struct drm_buf { 474 int idx; /* Index into master buflist */ 475 int total; /* Buffer size */ 476 int order; /* log-base-2(total) */ 477 int used; /* Amount of buffer in use (for DMA) */ 478 unsigned long offset; /* Byte offset (used internally) */ 479 void *address; /* Address of buffer */ 480 unsigned long bus_address; /* Bus address of buffer */ 481 struct drm_buf *next; /* Kernel-only: used for free list */ 482 __volatile__ int pending; /* On hardware DMA queue */ 483 DRMFILE filp; /* Unique identifier of holding process */ 484 int context; /* Kernel queue for this buffer */ 485 enum { 486 DRM_LIST_NONE = 0, 487 DRM_LIST_FREE = 1, 488 DRM_LIST_WAIT = 2, 489 DRM_LIST_PEND = 3, 490 DRM_LIST_PRIO = 4, 491 DRM_LIST_RECLAIM = 5 492 } list; /* Which list we're on */ 493 494 int dev_priv_size; /* Size of buffer private stoarge */ 495 void *dev_private; /* Per-buffer private storage */ 496} drm_buf_t; 497 498typedef struct drm_freelist { 499 int initialized; /* Freelist in use */ 500 atomic_t count; /* Number of free buffers */ 501 drm_buf_t *next; /* End pointer */ 502 503 int low_mark; /* Low water mark */ 504 int high_mark; /* High water mark */ 505} drm_freelist_t; 506 507typedef struct drm_dma_handle { 508 void *vaddr; 509 bus_addr_t busaddr; 510#if defined(__FreeBSD__) 511 bus_dma_tag_t tag; 512 bus_dmamap_t map; 513#elif defined(__NetBSD__) 514 bus_dma_segment_t seg; 515#endif 516} drm_dma_handle_t; 517 518typedef struct drm_buf_entry { 519 int buf_size; 520 int buf_count; 521 drm_buf_t *buflist; 522 int seg_count; 523 drm_dma_handle_t **seglist; 524 int page_order; 525 526 drm_freelist_t freelist; 527} drm_buf_entry_t; 528 529typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 530struct drm_file { 531 TAILQ_ENTRY(drm_file) link; 532 int authenticated; 533 int master; 534 int minor; 535 pid_t pid; 536 uid_t uid; 537 int refs; 538 drm_magic_t magic; 539 unsigned long ioctl_count; 540 void *driver_priv; 541}; 542 543typedef struct drm_lock_data { 544 drm_hw_lock_t *hw_lock; /* Hardware lock */ 545 DRMFILE filp; /* Unique identifier of holding process (NULL is kernel)*/ 546 int lock_queue; /* Queue of blocked processes */ 547 unsigned long lock_time; /* Time of last lock in jiffies */ 548} drm_lock_data_t; 549 550/* This structure, in the drm_device_t, is always initialized while the device 551 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 552 * when set marks that no further bufs may be allocated until device teardown 553 * occurs (when the last open of the device has closed). The high/low 554 * watermarks of bufs are only touched by the X Server, and thus not 555 * concurrently accessed, so no locking is needed. 556 */ 557typedef struct drm_device_dma { 558 drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; 559 int buf_count; 560 drm_buf_t **buflist; /* Vector of pointers info bufs */ 561 int seg_count; 562 int page_count; 563 unsigned long *pagelist; 564 unsigned long byte_count; 565 enum { 566 _DRM_DMA_USE_AGP = 0x01, 567 _DRM_DMA_USE_SG = 0x02 568 } flags; 569} drm_device_dma_t; 570 571typedef struct drm_agp_mem { 572 void *handle; 573 unsigned long bound; /* address */ 574 int pages; 575 struct drm_agp_mem *prev; 576 struct drm_agp_mem *next; 577} drm_agp_mem_t; 578 579typedef struct drm_agp_head { 580 device_t agpdev; 581 struct agp_info info; 582 const char *chipset; 583 drm_agp_mem_t *memory; 584 unsigned long mode; 585 int enabled; 586 int acquired; 587 unsigned long base; 588 int mtrr; 589 int cant_use_aperture; 590 unsigned long page_mask; 591} drm_agp_head_t; 592 593typedef struct drm_sg_mem { 594 unsigned long handle; 595 void *virtual; 596 int pages; 597 dma_addr_t *busaddr; 598 drm_dma_handle_t *dmah; /* Handle to PCI memory for ATI PCIGART table */ 599} drm_sg_mem_t; 600 601typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; 602 603typedef struct drm_local_map { 604 unsigned long offset; /* Physical address (0 for SAREA)*/ 605 unsigned long size; /* Physical size (bytes) */ 606 drm_map_type_t type; /* Type of memory mapped */ 607 drm_map_flags_t flags; /* Flags */ 608 void *handle; /* User-space: "Handle" to pass to mmap */ 609 /* Kernel-space: kernel-virtual address */ 610 int mtrr; /* Boolean: MTRR used */ 611 /* Private data */ 612 int rid; /* PCI resource ID for bus_space */ 613 struct resource *bsr; 614 bus_space_tag_t bst; 615 bus_space_handle_t bsh; 616 drm_dma_handle_t *dmah; 617 TAILQ_ENTRY(drm_local_map) link; 618} drm_local_map_t; 619 620TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig); 621typedef struct drm_vbl_sig { 622 TAILQ_ENTRY(drm_vbl_sig) link; 623 unsigned int sequence; 624 int signo; 625 int pid; 626} drm_vbl_sig_t; 627 628/* location of GART table */ 629#define DRM_ATI_GART_MAIN 1 630#define DRM_ATI_GART_FB 2 631 632typedef struct ati_pcigart_info { 633 int gart_table_location; 634 int is_pcie; 635 void *addr; 636 dma_addr_t bus_addr; 637 drm_local_map_t mapping; 638} drm_ati_pcigart_info; 639 640struct drm_driver_info { 641 int (*load)(struct drm_device *, unsigned long flags); 642 int (*firstopen)(struct drm_device *); 643 int (*open)(struct drm_device *, drm_file_t *); 644 void (*preclose)(struct drm_device *, void *filp); 645 void (*postclose)(struct drm_device *, drm_file_t *); 646 void (*lastclose)(struct drm_device *); 647 int (*unload)(struct drm_device *); 648 void (*reclaim_buffers_locked)(struct drm_device *, void *filp); 649 int (*dma_ioctl)(DRM_IOCTL_ARGS); 650 void (*dma_ready)(struct drm_device *); 651 int (*dma_quiescent)(struct drm_device *); 652 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 653 drm_lock_flags_t flags); 654 int (*dma_flush_unblock)(struct drm_device *, int context, 655 drm_lock_flags_t flags); 656 int (*context_ctor)(struct drm_device *dev, int context); 657 int (*context_dtor)(struct drm_device *dev, int context); 658 int (*kernel_context_switch)(struct drm_device *dev, int old, 659 int new); 660 int (*kernel_context_switch_unlock)(struct drm_device *dev); 661 void (*irq_preinstall)(drm_device_t *dev); 662 void (*irq_postinstall)(drm_device_t *dev); 663 void (*irq_uninstall)(drm_device_t *dev); 664 void (*irq_handler)(DRM_IRQ_ARGS); 665 int (*vblank_wait)(drm_device_t *dev, unsigned int *sequence); 666 667 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 668 669 /** 670 * Called by \c drm_device_is_agp. Typically used to determine if a 671 * card is really attached to AGP or not. 672 * 673 * \param dev DRM device handle 674 * 675 * \returns 676 * One of three values is returned depending on whether or not the 677 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 678 * (return of 1), or may or may not be AGP (return of 2). 679 */ 680 int (*device_is_agp) (struct drm_device * dev); 681 682 drm_ioctl_desc_t *ioctls; 683 int max_ioctl; 684 685 int buf_priv_size; 686 687 int major; 688 int minor; 689 int patchlevel; 690 const char *name; /* Simple driver name */ 691 const char *desc; /* Longer driver name */ 692 const char *date; /* Date of last major changes. */ 693 694 unsigned use_agp :1; 695 unsigned require_agp :1; 696 unsigned use_sg :1; 697 unsigned use_dma :1; 698 unsigned use_pci_dma :1; 699 unsigned use_dma_queue :1; 700 unsigned use_irq :1; 701 unsigned use_vbl_irq :1; 702 unsigned use_mtrr :1; 703}; 704 705/* Length for the array of resource pointers for drm_get_resource_*. */ 706#define DRM_MAX_PCI_RESOURCE 3 707 708/** 709 * DRM device functions structure 710 */ 711struct drm_device { 712#if defined(__NetBSD__) || defined(__OpenBSD__) 713 struct device device; /* softc is an extension of struct device */ 714#endif 715 716 struct drm_driver_info driver; 717 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 718 719 char *unique; /* Unique identifier: e.g., busid */ 720 int unique_len; /* Length of unique field */ 721#ifdef __FreeBSD__ 722 device_t device; /* Device instance from newbus */ 723#endif 724 struct cdev *devnode; /* Device number for mknod */ 725 int if_version; /* Highest interface version set */ 726 727 int flags; /* Flags to open(2) */ 728 729 /* Locks */ 730#if defined(__FreeBSD__) && __FreeBSD_version > 500000 731 struct mtx dma_lock; /* protects dev->dma */ 732 struct mtx irq_lock; /* protects irq condition checks */ 733 struct mtx dev_lock; /* protects everything else */ 734#endif 735 /* Usage Counters */ 736 int open_count; /* Outstanding files open */ 737 int buf_use; /* Buffers in use -- cannot alloc */ 738 739 /* Performance counters */ 740 unsigned long counters; 741 drm_stat_type_t types[15]; 742 atomic_t counts[15]; 743 744 /* Authentication */ 745 drm_file_list_t files; 746 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 747 748 /* Linked list of mappable regions. Protected by dev_lock */ 749 drm_map_list_t maplist; 750 751 drm_local_map_t **context_sareas; 752 int max_context; 753 754 drm_lock_data_t lock; /* Information on hardware lock */ 755 756 /* DMA queues (contexts) */ 757 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 758 759 /* Context support */ 760 int irq; /* Interrupt used by board */ 761 int irq_enabled; /* True if the irq handler is enabled */ 762#ifdef __FreeBSD__ 763 int irqrid; /* Interrupt used by board */ 764 struct resource *irqr; /* Resource for interrupt used by board */ 765#elif defined(__NetBSD__) || defined(__OpenBSD__) 766 struct pci_attach_args pa; 767#endif 768 void *irqh; /* Handle from bus_setup_intr */ 769 770 /* Storage of resource pointers for drm_get_resource_* */ 771 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 772 int pcirid[DRM_MAX_PCI_RESOURCE]; 773 774 int pci_domain; 775 int pci_bus; 776 int pci_slot; 777 int pci_func; 778 779 atomic_t context_flag; /* Context swapping flag */ 780 int last_context; /* Last current context */ 781 int vbl_queue; /* vbl wait channel */ 782 atomic_t vbl_received; 783 784#ifdef __FreeBSD__ 785 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 786#elif defined(__NetBSD__) 787 pid_t buf_pgid; 788#endif 789 790 /* Sysctl support */ 791 struct drm_sysctl_info *sysctl; 792 793 drm_agp_head_t *agp; 794 drm_sg_mem_t *sg; /* Scatter gather memory */ 795 atomic_t *ctx_bitmap; 796 void *dev_private; 797 unsigned int agp_buffer_token; 798 drm_local_map_t *agp_buffer_map; 799}; 800 801extern int drm_debug_flag; 802 803/* Device setup support (drm_drv.c) */ 804#ifdef __FreeBSD__ 805int drm_probe(device_t nbdev, drm_pci_id_list_t *idlist); 806int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist); 807int drm_detach(device_t nbdev); 808d_ioctl_t drm_ioctl; 809d_open_t drm_open; 810d_close_t drm_close; 811d_read_t drm_read; 812d_poll_t drm_poll; 813d_mmap_t drm_mmap; 814#elif defined(__NetBSD__) || defined(__OpenBSD__) 815int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist); 816int drm_attach(struct pci_attach_args *pa, dev_t kdev, drm_pci_id_list_t *idlist); 817dev_type_ioctl(drm_ioctl); 818dev_type_open(drm_open); 819dev_type_close(drm_close); 820dev_type_read(drm_read); 821dev_type_poll(drm_poll); 822dev_type_mmap(drm_mmap); 823#endif 824 825/* File operations helpers (drm_fops.c) */ 826#ifdef __FreeBSD__ 827extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 828 DRM_STRUCTPROC *p, drm_device_t *dev); 829extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev, 830 DRM_STRUCTPROC *p); 831#elif defined(__NetBSD__) || defined(__OpenBSD__) 832extern int drm_open_helper(dev_t kdev, int flags, int fmt, 833 DRM_STRUCTPROC *p, drm_device_t *dev); 834extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev, 835 DRM_STRUCTPROC *p); 836#endif /* __NetBSD__ || __OpenBSD__ */ 837 838/* Memory management support (drm_memory.c) */ 839void drm_mem_init(void); 840void drm_mem_uninit(void); 841void *drm_alloc(size_t size, int area); 842void *drm_calloc(size_t nmemb, size_t size, int area); 843void *drm_realloc(void *oldpt, size_t oldsize, size_t size, 844 int area); 845void drm_free(void *pt, size_t size, int area); 846void *drm_ioremap(drm_device_t *dev, drm_local_map_t *map); 847void drm_ioremapfree(drm_local_map_t *map); 848int drm_mtrr_add(unsigned long offset, size_t size, int flags); 849int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 850 851int drm_context_switch(drm_device_t *dev, int old, int new); 852int drm_context_switch_complete(drm_device_t *dev, int new); 853 854int drm_ctxbitmap_init(drm_device_t *dev); 855void drm_ctxbitmap_cleanup(drm_device_t *dev); 856void drm_ctxbitmap_free(drm_device_t *dev, int ctx_handle); 857int drm_ctxbitmap_next(drm_device_t *dev); 858 859/* Locking IOCTL support (drm_lock.c) */ 860int drm_lock_take(__volatile__ unsigned int *lock, 861 unsigned int context); 862int drm_lock_transfer(drm_device_t *dev, 863 __volatile__ unsigned int *lock, 864 unsigned int context); 865int drm_lock_free(drm_device_t *dev, 866 __volatile__ unsigned int *lock, 867 unsigned int context); 868 869/* Buffer management support (drm_bufs.c) */ 870unsigned long drm_get_resource_start(drm_device_t *dev, unsigned int resource); 871unsigned long drm_get_resource_len(drm_device_t *dev, unsigned int resource); 872void drm_rmmap(drm_device_t *dev, drm_local_map_t *map); 873int drm_order(unsigned long size); 874int drm_addmap(drm_device_t * dev, unsigned long offset, unsigned long size, 875 drm_map_type_t type, drm_map_flags_t flags, 876 drm_local_map_t **map_ptr); 877int drm_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request); 878int drm_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request); 879int drm_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request); 880 881/* DMA support (drm_dma.c) */ 882int drm_dma_setup(drm_device_t *dev); 883void drm_dma_takedown(drm_device_t *dev); 884void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf); 885void drm_reclaim_buffers(drm_device_t *dev, DRMFILE filp); 886#define drm_core_reclaim_buffers drm_reclaim_buffers 887 888/* IRQ support (drm_irq.c) */ 889int drm_irq_install(drm_device_t *dev); 890int drm_irq_uninstall(drm_device_t *dev); 891irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 892void drm_driver_irq_preinstall(drm_device_t *dev); 893void drm_driver_irq_postinstall(drm_device_t *dev); 894void drm_driver_irq_uninstall(drm_device_t *dev); 895int drm_vblank_wait(drm_device_t *dev, unsigned int *vbl_seq); 896void drm_vbl_send_signals(drm_device_t *dev); 897 898/* AGP/PCI Express/GART support (drm_agpsupport.c) */ 899int drm_device_is_agp(drm_device_t *dev); 900int drm_device_is_pcie(drm_device_t *dev); 901drm_agp_head_t *drm_agp_init(void); 902int drm_agp_acquire(drm_device_t *dev); 903int drm_agp_release(drm_device_t *dev); 904int drm_agp_info(drm_device_t * dev, drm_agp_info_t *info); 905int drm_agp_enable(drm_device_t *dev, drm_agp_mode_t mode); 906void *drm_agp_allocate_memory(size_t pages, u32 type); 907int drm_agp_free_memory(void *handle); 908int drm_agp_bind_memory(void *handle, off_t start); 909int drm_agp_unbind_memory(void *handle); 910int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request); 911int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request); 912int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request); 913int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request); 914 915/* Scatter Gather Support (drm_scatter.c) */ 916void drm_sg_cleanup(drm_sg_mem_t *entry); 917 918#ifdef __FreeBSD__ 919/* sysctl support (drm_sysctl.h) */ 920extern int drm_sysctl_init(drm_device_t *dev); 921extern int drm_sysctl_cleanup(drm_device_t *dev); 922#endif /* __FreeBSD__ */ 923 924/* ATI PCIGART support (ati_pcigart.c) */ 925int drm_ati_pcigart_init(drm_device_t *dev, 926 drm_ati_pcigart_info *gart_info); 927int drm_ati_pcigart_cleanup(drm_device_t *dev, 928 drm_ati_pcigart_info *gart_info); 929 930/* Locking IOCTL support (drm_drv.c) */ 931int drm_lock(DRM_IOCTL_ARGS); 932int drm_unlock(DRM_IOCTL_ARGS); 933int drm_version(DRM_IOCTL_ARGS); 934int drm_setversion(DRM_IOCTL_ARGS); 935 936/* Misc. IOCTL support (drm_ioctl.c) */ 937int drm_irq_by_busid(DRM_IOCTL_ARGS); 938int drm_getunique(DRM_IOCTL_ARGS); 939int drm_setunique(DRM_IOCTL_ARGS); 940int drm_getmap(DRM_IOCTL_ARGS); 941int drm_getclient(DRM_IOCTL_ARGS); 942int drm_getstats(DRM_IOCTL_ARGS); 943int drm_noop(DRM_IOCTL_ARGS); 944 945/* Context IOCTL support (drm_context.c) */ 946int drm_resctx(DRM_IOCTL_ARGS); 947int drm_addctx(DRM_IOCTL_ARGS); 948int drm_modctx(DRM_IOCTL_ARGS); 949int drm_getctx(DRM_IOCTL_ARGS); 950int drm_switchctx(DRM_IOCTL_ARGS); 951int drm_newctx(DRM_IOCTL_ARGS); 952int drm_rmctx(DRM_IOCTL_ARGS); 953int drm_setsareactx(DRM_IOCTL_ARGS); 954int drm_getsareactx(DRM_IOCTL_ARGS); 955 956/* Drawable IOCTL support (drm_drawable.c) */ 957int drm_adddraw(DRM_IOCTL_ARGS); 958int drm_rmdraw(DRM_IOCTL_ARGS); 959 960/* Authentication IOCTL support (drm_auth.c) */ 961int drm_getmagic(DRM_IOCTL_ARGS); 962int drm_authmagic(DRM_IOCTL_ARGS); 963 964/* Buffer management support (drm_bufs.c) */ 965int drm_addmap_ioctl(DRM_IOCTL_ARGS); 966int drm_rmmap_ioctl(DRM_IOCTL_ARGS); 967int drm_addbufs_ioctl(DRM_IOCTL_ARGS); 968int drm_infobufs(DRM_IOCTL_ARGS); 969int drm_markbufs(DRM_IOCTL_ARGS); 970int drm_freebufs(DRM_IOCTL_ARGS); 971int drm_mapbufs(DRM_IOCTL_ARGS); 972 973/* DMA support (drm_dma.c) */ 974int drm_dma(DRM_IOCTL_ARGS); 975 976/* IRQ support (drm_irq.c) */ 977int drm_control(DRM_IOCTL_ARGS); 978int drm_wait_vblank(DRM_IOCTL_ARGS); 979 980/* AGP/GART support (drm_agpsupport.c) */ 981int drm_agp_acquire_ioctl(DRM_IOCTL_ARGS); 982int drm_agp_release_ioctl(DRM_IOCTL_ARGS); 983int drm_agp_enable_ioctl(DRM_IOCTL_ARGS); 984int drm_agp_info_ioctl(DRM_IOCTL_ARGS); 985int drm_agp_alloc_ioctl(DRM_IOCTL_ARGS); 986int drm_agp_free_ioctl(DRM_IOCTL_ARGS); 987int drm_agp_unbind_ioctl(DRM_IOCTL_ARGS); 988int drm_agp_bind_ioctl(DRM_IOCTL_ARGS); 989 990/* Scatter Gather Support (drm_scatter.c) */ 991int drm_sg_alloc(DRM_IOCTL_ARGS); 992int drm_sg_free(DRM_IOCTL_ARGS); 993 994/* consistent PCI memory functions (drm_pci.c) */ 995drm_dma_handle_t *drm_pci_alloc(drm_device_t *dev, size_t size, size_t align, 996 dma_addr_t maxaddr); 997void drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah); 998 999/* Inline replacements for DRM_IOREMAP macros */ 1000static __inline__ void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1001{ 1002 map->handle = drm_ioremap(dev, map); 1003} 1004static __inline__ void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1005{ 1006 if ( map->handle && map->size ) 1007 drm_ioremapfree(map); 1008} 1009 1010static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, unsigned long offset) 1011{ 1012 drm_local_map_t *map; 1013 1014 DRM_SPINLOCK_ASSERT(&dev->dev_lock); 1015 TAILQ_FOREACH(map, &dev->maplist, link) { 1016 if (map->offset == offset) 1017 return map; 1018 } 1019 return NULL; 1020} 1021 1022static __inline__ void drm_core_dropmap(struct drm_map *map) 1023{ 1024} 1025 1026#endif /* __KERNEL__ */ 1027#endif /* _DRM_P_H_ */ 1028