drmP.h revision 162132
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 162132 2006-09-07 23:04:47Z 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 {(void)(queue);} 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_IS_AGP, 224 DRM_MIGHT_BE_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_int64_t u64; 277typedef u_int32_t u32; 278typedef u_int16_t u16; 279typedef u_int8_t u8; 280 281/* DRM_READMEMORYBARRIER() prevents reordering of reads. 282 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 283 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 284 */ 285#if defined(__i386__) 286#define DRM_READMEMORYBARRIER() __asm __volatile( \ 287 "lock; addl $0,0(%%esp)" : : : "memory"); 288#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); 289#define DRM_MEMORYBARRIER() __asm __volatile( \ 290 "lock; addl $0,0(%%esp)" : : : "memory"); 291#elif defined(__alpha__) 292#define DRM_READMEMORYBARRIER() alpha_mb(); 293#define DRM_WRITEMEMORYBARRIER() alpha_wmb(); 294#define DRM_MEMORYBARRIER() alpha_mb(); 295#elif defined(__amd64__) 296#define DRM_READMEMORYBARRIER() __asm __volatile( \ 297 "lock; addl $0,0(%%rsp)" : : : "memory"); 298#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); 299#define DRM_MEMORYBARRIER() __asm __volatile( \ 300 "lock; addl $0,0(%%rsp)" : : : "memory"); 301#endif 302 303#ifdef __FreeBSD__ 304#define DRM_READ8(map, offset) \ 305 *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) 306#define DRM_READ16(map, offset) \ 307 *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) 308#define DRM_READ32(map, offset) \ 309 *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) 310#define DRM_WRITE8(map, offset, val) \ 311 *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) = val 312#define DRM_WRITE16(map, offset, val) \ 313 *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) = val 314#define DRM_WRITE32(map, offset, val) \ 315 *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) = val 316 317#define DRM_VERIFYAREA_READ( uaddr, size ) \ 318 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 319 320#else /* __FreeBSD__ */ 321 322typedef vaddr_t vm_offset_t; 323 324#define DRM_READ8(map, offset) \ 325 bus_space_read_1( (map)->bst, (map)->bsh, (offset)) 326#define DRM_READ16(map, offset) \ 327 bus_space_read_2( (map)->bst, (map)->bsh, (offset)) 328#define DRM_READ32(map, offset) \ 329 bus_space_read_4( (map)->bst, (map)->bsh, (offset)) 330#define DRM_WRITE8(map, offset, val) \ 331 bus_space_write_1((map)->bst, (map)->bsh, (offset), (val)) 332#define DRM_WRITE16(map, offset, val) \ 333 bus_space_write_2((map)->bst, (map)->bsh, (offset), (val)) 334#define DRM_WRITE32(map, offset, val) \ 335 bus_space_write_4((map)->bst, (map)->bsh, (offset), (val)) 336 337#define DRM_VERIFYAREA_READ( uaddr, size ) \ 338 (!uvm_useracc((caddr_t)uaddr, size, VM_PROT_READ)) 339#endif /* !__FreeBSD__ */ 340 341#define DRM_COPY_TO_USER_IOCTL(user, kern, size) \ 342 if ( IOCPARM_LEN(cmd) != size) \ 343 return EINVAL; \ 344 *user = kern; 345#define DRM_COPY_FROM_USER_IOCTL(kern, user, size) \ 346 if ( IOCPARM_LEN(cmd) != size) \ 347 return EINVAL; \ 348 kern = *user; 349#define DRM_COPY_TO_USER(user, kern, size) \ 350 copyout(kern, user, size) 351#define DRM_COPY_FROM_USER(kern, user, size) \ 352 copyin(user, kern, size) 353#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 354 copyin(arg2, arg1, arg3) 355#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 356 copyout(arg2, arg1, arg3) 357#if __FreeBSD_version > 500000 358#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 359 ((val) = fuword32(uaddr), 0) 360#else 361#define DRM_GET_USER_UNCHECKED(val, uaddr) \ 362 ((val) = fuword(uaddr), 0) 363#endif 364 365#define cpu_to_le32(x) htole32(x) 366#define le32_to_cpu(x) le32toh(x) 367 368#define DRM_ERR(v) v 369#define DRM_HZ hz 370#define DRM_UDELAY(udelay) DELAY(udelay) 371#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ 372 373#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 374 (_map) = (_dev)->context_sareas[_ctx]; \ 375} while(0) 376 377#define DRM_GET_PRIV_WITH_RETURN(_priv, _filp) \ 378do { \ 379 if (_filp != (DRMFILE)(intptr_t)DRM_CURRENTPID) { \ 380 DRM_ERROR("filp doesn't match curproc\n"); \ 381 return EINVAL; \ 382 } \ 383 _priv = drm_find_file_by_proc(dev, DRM_CURPROC); \ 384 if (_priv == NULL) { \ 385 DRM_ERROR("can't find authenticator\n"); \ 386 return EINVAL; \ 387 } \ 388} while (0) 389 390#define LOCK_TEST_WITH_RETURN(dev, filp) \ 391do { \ 392 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 393 dev->lock.filp != filp) { \ 394 DRM_ERROR("%s called without lock held\n", \ 395 __FUNCTION__); \ 396 return EINVAL; \ 397 } \ 398} while (0) 399 400#define DRM_GETSAREA() \ 401do { \ 402 drm_local_map_t *map; \ 403 DRM_SPINLOCK_ASSERT(&dev->dev_lock); \ 404 TAILQ_FOREACH(map, &dev->maplist, link) { \ 405 if (map->type == _DRM_SHM && \ 406 map->flags & _DRM_CONTAINS_LOCK) { \ 407 dev_priv->sarea = map; \ 408 break; \ 409 } \ 410 } \ 411} while (0) 412 413#if defined(__FreeBSD__) && __FreeBSD_version > 500000 414#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 415for ( ret = 0 ; !ret && !(condition) ; ) { \ 416 DRM_UNLOCK(); \ 417 mtx_lock(&dev->irq_lock); \ 418 if (!(condition)) \ 419 ret = msleep(&(queue), &dev->irq_lock, \ 420 PZERO | PCATCH, "drmwtq", (timeout)); \ 421 mtx_unlock(&dev->irq_lock); \ 422 DRM_LOCK(); \ 423} 424#else 425#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 426for ( ret = 0 ; !ret && !(condition) ; ) { \ 427 int s = spldrm(); \ 428 if (!(condition)) \ 429 ret = tsleep( &(queue), PZERO | PCATCH, \ 430 "drmwtq", (timeout) ); \ 431 splx(s); \ 432} 433#endif 434 435#define DRM_ERROR(fmt, arg...) \ 436 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 437 DRM_CURRENTPID, __func__ , ## arg) 438 439#define DRM_INFO(fmt, arg...) printf("info: [" DRM_NAME "] " fmt , ## arg) 440 441#define DRM_DEBUG(fmt, arg...) do { \ 442 if (drm_debug_flag) \ 443 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 444 __func__ , ## arg); \ 445} while (0) 446 447typedef struct drm_pci_id_list 448{ 449 int vendor; 450 int device; 451 long driver_private; 452 char *name; 453} drm_pci_id_list_t; 454 455#define DRM_AUTH 0x1 456#define DRM_MASTER 0x2 457#define DRM_ROOT_ONLY 0x4 458typedef struct drm_ioctl_desc { 459 int (*func)(DRM_IOCTL_ARGS); 460 int flags; 461} drm_ioctl_desc_t; 462 463typedef struct drm_magic_entry { 464 drm_magic_t magic; 465 struct drm_file *priv; 466 struct drm_magic_entry *next; 467} drm_magic_entry_t; 468 469typedef struct drm_magic_head { 470 struct drm_magic_entry *head; 471 struct drm_magic_entry *tail; 472} drm_magic_head_t; 473 474typedef struct drm_buf { 475 int idx; /* Index into master buflist */ 476 int total; /* Buffer size */ 477 int order; /* log-base-2(total) */ 478 int used; /* Amount of buffer in use (for DMA) */ 479 unsigned long offset; /* Byte offset (used internally) */ 480 void *address; /* Address of buffer */ 481 unsigned long bus_address; /* Bus address of buffer */ 482 struct drm_buf *next; /* Kernel-only: used for free list */ 483 __volatile__ int pending; /* On hardware DMA queue */ 484 DRMFILE filp; /* Unique identifier of holding process */ 485 int context; /* Kernel queue for this buffer */ 486 enum { 487 DRM_LIST_NONE = 0, 488 DRM_LIST_FREE = 1, 489 DRM_LIST_WAIT = 2, 490 DRM_LIST_PEND = 3, 491 DRM_LIST_PRIO = 4, 492 DRM_LIST_RECLAIM = 5 493 } list; /* Which list we're on */ 494 495 int dev_priv_size; /* Size of buffer private stoarge */ 496 void *dev_private; /* Per-buffer private storage */ 497} drm_buf_t; 498 499typedef struct drm_freelist { 500 int initialized; /* Freelist in use */ 501 atomic_t count; /* Number of free buffers */ 502 drm_buf_t *next; /* End pointer */ 503 504 int low_mark; /* Low water mark */ 505 int high_mark; /* High water mark */ 506} drm_freelist_t; 507 508typedef struct drm_dma_handle { 509 void *vaddr; 510 bus_addr_t busaddr; 511#if defined(__FreeBSD__) 512 bus_dma_tag_t tag; 513 bus_dmamap_t map; 514#elif defined(__NetBSD__) 515 bus_dma_segment_t seg; 516#endif 517} drm_dma_handle_t; 518 519typedef struct drm_buf_entry { 520 int buf_size; 521 int buf_count; 522 drm_buf_t *buflist; 523 int seg_count; 524 drm_dma_handle_t **seglist; 525 int page_order; 526 527 drm_freelist_t freelist; 528} drm_buf_entry_t; 529 530typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 531struct drm_file { 532 TAILQ_ENTRY(drm_file) link; 533 int authenticated; 534 int master; 535 int minor; 536 pid_t pid; 537 uid_t uid; 538 int refs; 539 drm_magic_t magic; 540 unsigned long ioctl_count; 541 void *driver_priv; 542}; 543 544typedef struct drm_lock_data { 545 drm_hw_lock_t *hw_lock; /* Hardware lock */ 546 DRMFILE filp; /* Unique identifier of holding process (NULL is kernel)*/ 547 int lock_queue; /* Queue of blocked processes */ 548 unsigned long lock_time; /* Time of last lock in jiffies */ 549} drm_lock_data_t; 550 551/* This structure, in the drm_device_t, is always initialized while the device 552 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 553 * when set marks that no further bufs may be allocated until device teardown 554 * occurs (when the last open of the device has closed). The high/low 555 * watermarks of bufs are only touched by the X Server, and thus not 556 * concurrently accessed, so no locking is needed. 557 */ 558typedef struct drm_device_dma { 559 drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; 560 int buf_count; 561 drm_buf_t **buflist; /* Vector of pointers info bufs */ 562 int seg_count; 563 int page_count; 564 unsigned long *pagelist; 565 unsigned long byte_count; 566 enum { 567 _DRM_DMA_USE_AGP = 0x01, 568 _DRM_DMA_USE_SG = 0x02 569 } flags; 570} drm_device_dma_t; 571 572typedef struct drm_agp_mem { 573 void *handle; 574 unsigned long bound; /* address */ 575 int pages; 576 struct drm_agp_mem *prev; 577 struct drm_agp_mem *next; 578} drm_agp_mem_t; 579 580typedef struct drm_agp_head { 581 device_t agpdev; 582 struct agp_info info; 583 const char *chipset; 584 drm_agp_mem_t *memory; 585 unsigned long mode; 586 int enabled; 587 int acquired; 588 unsigned long base; 589 int mtrr; 590 int cant_use_aperture; 591 unsigned long page_mask; 592} drm_agp_head_t; 593 594typedef struct drm_sg_mem { 595 unsigned long handle; 596 void *virtual; 597 int pages; 598 dma_addr_t *busaddr; 599 drm_dma_handle_t *dmah; /* Handle to PCI memory for ATI PCIGART table */ 600} drm_sg_mem_t; 601 602typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; 603 604typedef struct drm_local_map { 605 unsigned long offset; /* Physical address (0 for SAREA)*/ 606 unsigned long size; /* Physical size (bytes) */ 607 drm_map_type_t type; /* Type of memory mapped */ 608 drm_map_flags_t flags; /* Flags */ 609 void *handle; /* User-space: "Handle" to pass to mmap */ 610 /* Kernel-space: kernel-virtual address */ 611 int mtrr; /* Boolean: MTRR used */ 612 /* Private data */ 613 int rid; /* PCI resource ID for bus_space */ 614 struct resource *bsr; 615 bus_space_tag_t bst; 616 bus_space_handle_t bsh; 617 drm_dma_handle_t *dmah; 618 TAILQ_ENTRY(drm_local_map) link; 619} drm_local_map_t; 620 621TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig); 622typedef struct drm_vbl_sig { 623 TAILQ_ENTRY(drm_vbl_sig) link; 624 unsigned int sequence; 625 int signo; 626 int pid; 627} drm_vbl_sig_t; 628 629/* location of GART table */ 630#define DRM_ATI_GART_MAIN 1 631#define DRM_ATI_GART_FB 2 632 633typedef struct ati_pcigart_info { 634 int gart_table_location; 635 int is_pcie; 636 void *addr; 637 dma_addr_t bus_addr; 638 drm_local_map_t mapping; 639} drm_ati_pcigart_info; 640 641struct drm_driver_info { 642 int (*load)(struct drm_device *, unsigned long flags); 643 int (*firstopen)(struct drm_device *); 644 int (*open)(struct drm_device *, drm_file_t *); 645 void (*preclose)(struct drm_device *, void *filp); 646 void (*postclose)(struct drm_device *, drm_file_t *); 647 void (*lastclose)(struct drm_device *); 648 int (*unload)(struct drm_device *); 649 void (*reclaim_buffers_locked)(struct drm_device *, void *filp); 650 int (*dma_ioctl)(DRM_IOCTL_ARGS); 651 void (*dma_ready)(struct drm_device *); 652 int (*dma_quiescent)(struct drm_device *); 653 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 654 drm_lock_flags_t flags); 655 int (*dma_flush_unblock)(struct drm_device *, int context, 656 drm_lock_flags_t flags); 657 int (*context_ctor)(struct drm_device *dev, int context); 658 int (*context_dtor)(struct drm_device *dev, int context); 659 int (*kernel_context_switch)(struct drm_device *dev, int old, 660 int new); 661 int (*kernel_context_switch_unlock)(struct drm_device *dev); 662 void (*irq_preinstall)(drm_device_t *dev); 663 void (*irq_postinstall)(drm_device_t *dev); 664 void (*irq_uninstall)(drm_device_t *dev); 665 void (*irq_handler)(DRM_IRQ_ARGS); 666 int (*vblank_wait)(drm_device_t *dev, unsigned int *sequence); 667 668 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 669 670 /** 671 * Called by \c drm_device_is_agp. Typically used to determine if a 672 * card is really attached to AGP or not. 673 * 674 * \param dev DRM device handle 675 * 676 * \returns 677 * One of three values is returned depending on whether or not the 678 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP 679 * (return of 1), or may or may not be AGP (return of 2). 680 */ 681 int (*device_is_agp) (struct drm_device * dev); 682 683 drm_ioctl_desc_t *ioctls; 684 int max_ioctl; 685 686 int buf_priv_size; 687 688 int major; 689 int minor; 690 int patchlevel; 691 const char *name; /* Simple driver name */ 692 const char *desc; /* Longer driver name */ 693 const char *date; /* Date of last major changes. */ 694 695 unsigned use_agp :1; 696 unsigned require_agp :1; 697 unsigned use_sg :1; 698 unsigned use_dma :1; 699 unsigned use_pci_dma :1; 700 unsigned use_dma_queue :1; 701 unsigned use_irq :1; 702 unsigned use_vbl_irq :1; 703 unsigned use_mtrr :1; 704}; 705 706/* Length for the array of resource pointers for drm_get_resource_*. */ 707#define DRM_MAX_PCI_RESOURCE 3 708 709/** 710 * DRM device functions structure 711 */ 712struct drm_device { 713#if defined(__NetBSD__) || defined(__OpenBSD__) 714 struct device device; /* softc is an extension of struct device */ 715#endif 716 717 struct drm_driver_info driver; 718 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 719 720 u_int16_t pci_device; /* PCI device id */ 721 u_int16_t pci_vendor; /* PCI vendor id */ 722 723 char *unique; /* Unique identifier: e.g., busid */ 724 int unique_len; /* Length of unique field */ 725#ifdef __FreeBSD__ 726 device_t device; /* Device instance from newbus */ 727#endif 728 struct cdev *devnode; /* Device number for mknod */ 729 int if_version; /* Highest interface version set */ 730 731 int flags; /* Flags to open(2) */ 732 733 /* Locks */ 734#if defined(__FreeBSD__) && __FreeBSD_version > 500000 735 struct mtx dma_lock; /* protects dev->dma */ 736 struct mtx irq_lock; /* protects irq condition checks */ 737 struct mtx dev_lock; /* protects everything else */ 738#endif 739 /* Usage Counters */ 740 int open_count; /* Outstanding files open */ 741 int buf_use; /* Buffers in use -- cannot alloc */ 742 743 /* Performance counters */ 744 unsigned long counters; 745 drm_stat_type_t types[15]; 746 atomic_t counts[15]; 747 748 /* Authentication */ 749 drm_file_list_t files; 750 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 751 752 /* Linked list of mappable regions. Protected by dev_lock */ 753 drm_map_list_t maplist; 754 755 drm_local_map_t **context_sareas; 756 int max_context; 757 758 drm_lock_data_t lock; /* Information on hardware lock */ 759 760 /* DMA queues (contexts) */ 761 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 762 763 /* Context support */ 764 int irq; /* Interrupt used by board */ 765 int irq_enabled; /* True if the irq handler is enabled */ 766#ifdef __FreeBSD__ 767 int irqrid; /* Interrupt used by board */ 768 struct resource *irqr; /* Resource for interrupt used by board */ 769#elif defined(__NetBSD__) || defined(__OpenBSD__) 770 struct pci_attach_args pa; 771#endif 772 void *irqh; /* Handle from bus_setup_intr */ 773 774 /* Storage of resource pointers for drm_get_resource_* */ 775 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 776 int pcirid[DRM_MAX_PCI_RESOURCE]; 777 778 int pci_domain; 779 int pci_bus; 780 int pci_slot; 781 int pci_func; 782 783 atomic_t context_flag; /* Context swapping flag */ 784 int last_context; /* Last current context */ 785 int vbl_queue; /* vbl wait channel */ 786 atomic_t vbl_received; 787 788#ifdef __FreeBSD__ 789 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 790#elif defined(__NetBSD__) 791 pid_t buf_pgid; 792#endif 793 794 /* Sysctl support */ 795 struct drm_sysctl_info *sysctl; 796 797 drm_agp_head_t *agp; 798 drm_sg_mem_t *sg; /* Scatter gather memory */ 799 atomic_t *ctx_bitmap; 800 void *dev_private; 801 unsigned int agp_buffer_token; 802 drm_local_map_t *agp_buffer_map; 803}; 804 805extern int drm_debug_flag; 806 807/* Device setup support (drm_drv.c) */ 808#ifdef __FreeBSD__ 809int drm_probe(device_t nbdev, drm_pci_id_list_t *idlist); 810int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist); 811int drm_detach(device_t nbdev); 812d_ioctl_t drm_ioctl; 813d_open_t drm_open; 814d_close_t drm_close; 815d_read_t drm_read; 816d_poll_t drm_poll; 817d_mmap_t drm_mmap; 818#elif defined(__NetBSD__) || defined(__OpenBSD__) 819int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist); 820int drm_attach(struct pci_attach_args *pa, dev_t kdev, drm_pci_id_list_t *idlist); 821dev_type_ioctl(drm_ioctl); 822dev_type_open(drm_open); 823dev_type_close(drm_close); 824dev_type_read(drm_read); 825dev_type_poll(drm_poll); 826dev_type_mmap(drm_mmap); 827#endif 828 829/* File operations helpers (drm_fops.c) */ 830#ifdef __FreeBSD__ 831extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 832 DRM_STRUCTPROC *p, drm_device_t *dev); 833extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev, 834 DRM_STRUCTPROC *p); 835#elif defined(__NetBSD__) || defined(__OpenBSD__) 836extern int drm_open_helper(dev_t kdev, int flags, int fmt, 837 DRM_STRUCTPROC *p, drm_device_t *dev); 838extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev, 839 DRM_STRUCTPROC *p); 840#endif /* __NetBSD__ || __OpenBSD__ */ 841 842/* Memory management support (drm_memory.c) */ 843void drm_mem_init(void); 844void drm_mem_uninit(void); 845void *drm_alloc(size_t size, int area); 846void *drm_calloc(size_t nmemb, size_t size, int area); 847void *drm_realloc(void *oldpt, size_t oldsize, size_t size, 848 int area); 849void drm_free(void *pt, size_t size, int area); 850void *drm_ioremap(drm_device_t *dev, drm_local_map_t *map); 851void drm_ioremapfree(drm_local_map_t *map); 852int drm_mtrr_add(unsigned long offset, size_t size, int flags); 853int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 854 855int drm_context_switch(drm_device_t *dev, int old, int new); 856int drm_context_switch_complete(drm_device_t *dev, int new); 857 858int drm_ctxbitmap_init(drm_device_t *dev); 859void drm_ctxbitmap_cleanup(drm_device_t *dev); 860void drm_ctxbitmap_free(drm_device_t *dev, int ctx_handle); 861int drm_ctxbitmap_next(drm_device_t *dev); 862 863/* Locking IOCTL support (drm_lock.c) */ 864int drm_lock_take(__volatile__ unsigned int *lock, 865 unsigned int context); 866int drm_lock_transfer(drm_device_t *dev, 867 __volatile__ unsigned int *lock, 868 unsigned int context); 869int drm_lock_free(drm_device_t *dev, 870 __volatile__ unsigned int *lock, 871 unsigned int context); 872 873/* Buffer management support (drm_bufs.c) */ 874unsigned long drm_get_resource_start(drm_device_t *dev, unsigned int resource); 875unsigned long drm_get_resource_len(drm_device_t *dev, unsigned int resource); 876void drm_rmmap(drm_device_t *dev, drm_local_map_t *map); 877int drm_order(unsigned long size); 878int drm_addmap(drm_device_t * dev, unsigned long offset, unsigned long size, 879 drm_map_type_t type, drm_map_flags_t flags, 880 drm_local_map_t **map_ptr); 881int drm_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request); 882int drm_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request); 883int drm_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request); 884 885/* DMA support (drm_dma.c) */ 886int drm_dma_setup(drm_device_t *dev); 887void drm_dma_takedown(drm_device_t *dev); 888void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf); 889void drm_reclaim_buffers(drm_device_t *dev, DRMFILE filp); 890#define drm_core_reclaim_buffers drm_reclaim_buffers 891 892/* IRQ support (drm_irq.c) */ 893int drm_irq_install(drm_device_t *dev); 894int drm_irq_uninstall(drm_device_t *dev); 895irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 896void drm_driver_irq_preinstall(drm_device_t *dev); 897void drm_driver_irq_postinstall(drm_device_t *dev); 898void drm_driver_irq_uninstall(drm_device_t *dev); 899int drm_vblank_wait(drm_device_t *dev, unsigned int *vbl_seq); 900void drm_vbl_send_signals(drm_device_t *dev); 901 902/* AGP/PCI Express/GART support (drm_agpsupport.c) */ 903int drm_device_is_agp(drm_device_t *dev); 904int drm_device_is_pcie(drm_device_t *dev); 905drm_agp_head_t *drm_agp_init(void); 906int drm_agp_acquire(drm_device_t *dev); 907int drm_agp_release(drm_device_t *dev); 908int drm_agp_info(drm_device_t * dev, drm_agp_info_t *info); 909int drm_agp_enable(drm_device_t *dev, drm_agp_mode_t mode); 910void *drm_agp_allocate_memory(size_t pages, u32 type); 911int drm_agp_free_memory(void *handle); 912int drm_agp_bind_memory(void *handle, off_t start); 913int drm_agp_unbind_memory(void *handle); 914int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request); 915int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request); 916int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request); 917int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request); 918 919/* Scatter Gather Support (drm_scatter.c) */ 920void drm_sg_cleanup(drm_sg_mem_t *entry); 921 922#ifdef __FreeBSD__ 923/* sysctl support (drm_sysctl.h) */ 924extern int drm_sysctl_init(drm_device_t *dev); 925extern int drm_sysctl_cleanup(drm_device_t *dev); 926#endif /* __FreeBSD__ */ 927 928/* ATI PCIGART support (ati_pcigart.c) */ 929int drm_ati_pcigart_init(drm_device_t *dev, 930 drm_ati_pcigart_info *gart_info); 931int drm_ati_pcigart_cleanup(drm_device_t *dev, 932 drm_ati_pcigart_info *gart_info); 933 934/* Locking IOCTL support (drm_drv.c) */ 935int drm_lock(DRM_IOCTL_ARGS); 936int drm_unlock(DRM_IOCTL_ARGS); 937int drm_version(DRM_IOCTL_ARGS); 938int drm_setversion(DRM_IOCTL_ARGS); 939 940/* Misc. IOCTL support (drm_ioctl.c) */ 941int drm_irq_by_busid(DRM_IOCTL_ARGS); 942int drm_getunique(DRM_IOCTL_ARGS); 943int drm_setunique(DRM_IOCTL_ARGS); 944int drm_getmap(DRM_IOCTL_ARGS); 945int drm_getclient(DRM_IOCTL_ARGS); 946int drm_getstats(DRM_IOCTL_ARGS); 947int drm_noop(DRM_IOCTL_ARGS); 948 949/* Context IOCTL support (drm_context.c) */ 950int drm_resctx(DRM_IOCTL_ARGS); 951int drm_addctx(DRM_IOCTL_ARGS); 952int drm_modctx(DRM_IOCTL_ARGS); 953int drm_getctx(DRM_IOCTL_ARGS); 954int drm_switchctx(DRM_IOCTL_ARGS); 955int drm_newctx(DRM_IOCTL_ARGS); 956int drm_rmctx(DRM_IOCTL_ARGS); 957int drm_setsareactx(DRM_IOCTL_ARGS); 958int drm_getsareactx(DRM_IOCTL_ARGS); 959 960/* Drawable IOCTL support (drm_drawable.c) */ 961int drm_adddraw(DRM_IOCTL_ARGS); 962int drm_rmdraw(DRM_IOCTL_ARGS); 963 964/* Authentication IOCTL support (drm_auth.c) */ 965int drm_getmagic(DRM_IOCTL_ARGS); 966int drm_authmagic(DRM_IOCTL_ARGS); 967 968/* Buffer management support (drm_bufs.c) */ 969int drm_addmap_ioctl(DRM_IOCTL_ARGS); 970int drm_rmmap_ioctl(DRM_IOCTL_ARGS); 971int drm_addbufs_ioctl(DRM_IOCTL_ARGS); 972int drm_infobufs(DRM_IOCTL_ARGS); 973int drm_markbufs(DRM_IOCTL_ARGS); 974int drm_freebufs(DRM_IOCTL_ARGS); 975int drm_mapbufs(DRM_IOCTL_ARGS); 976 977/* DMA support (drm_dma.c) */ 978int drm_dma(DRM_IOCTL_ARGS); 979 980/* IRQ support (drm_irq.c) */ 981int drm_control(DRM_IOCTL_ARGS); 982int drm_wait_vblank(DRM_IOCTL_ARGS); 983 984/* AGP/GART support (drm_agpsupport.c) */ 985int drm_agp_acquire_ioctl(DRM_IOCTL_ARGS); 986int drm_agp_release_ioctl(DRM_IOCTL_ARGS); 987int drm_agp_enable_ioctl(DRM_IOCTL_ARGS); 988int drm_agp_info_ioctl(DRM_IOCTL_ARGS); 989int drm_agp_alloc_ioctl(DRM_IOCTL_ARGS); 990int drm_agp_free_ioctl(DRM_IOCTL_ARGS); 991int drm_agp_unbind_ioctl(DRM_IOCTL_ARGS); 992int drm_agp_bind_ioctl(DRM_IOCTL_ARGS); 993 994/* Scatter Gather Support (drm_scatter.c) */ 995int drm_sg_alloc(DRM_IOCTL_ARGS); 996int drm_sg_free(DRM_IOCTL_ARGS); 997 998/* consistent PCI memory functions (drm_pci.c) */ 999drm_dma_handle_t *drm_pci_alloc(drm_device_t *dev, size_t size, size_t align, 1000 dma_addr_t maxaddr); 1001void drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah); 1002 1003/* Inline replacements for DRM_IOREMAP macros */ 1004static __inline__ void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1005{ 1006 map->handle = drm_ioremap(dev, map); 1007} 1008static __inline__ void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1009{ 1010 if ( map->handle && map->size ) 1011 drm_ioremapfree(map); 1012} 1013 1014static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, unsigned long offset) 1015{ 1016 drm_local_map_t *map; 1017 1018 DRM_SPINLOCK_ASSERT(&dev->dev_lock); 1019 TAILQ_FOREACH(map, &dev->maplist, link) { 1020 if (map->offset == offset) 1021 return map; 1022 } 1023 return NULL; 1024} 1025 1026static __inline__ void drm_core_dropmap(struct drm_map *map) 1027{ 1028} 1029 1030#endif /* __KERNEL__ */ 1031#endif /* _DRM_P_H_ */ 1032