drmP.h revision 1.1
1 /* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*- 2 * Created: Mon Jan 4 10:05:05 1999 by faith (at) 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 (at) valinux.com> 30 * Gareth Hughes <gareth (at) valinux.com> 31 * 32 */ 33 34 #ifndef _DRM_P_H_ 35 #define _DRM_P_H_ 36 37 #if defined(_KERNEL) || defined(__KERNEL__) 38 39 struct drm_device; 40 typedef struct drm_file drm_file_t; 41 42 #include <sys/param.h> 43 #include <sys/queue.h> 44 #include <sys/malloc.h> 45 #include <sys/kernel.h> 46 #include <sys/module.h> 47 #include <sys/systm.h> 48 #include <sys/conf.h> 49 #include <sys/stat.h> 50 #if __FreeBSD_version >= 700000 51 #include <sys/priv.h> 52 #endif 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 <sys/tree.h> 63 #include <sys/taskqueue.h> 64 #include <vm/vm.h> 65 #include <vm/pmap.h> 66 #include <vm/vm_extern.h> 67 #include <vm/vm_map.h> 68 #include <vm/vm_param.h> 69 #include <machine/param.h> 70 #include <machine/pmap.h> 71 #include <machine/bus.h> 72 #include <machine/resource.h> 73 #include <machine/sysarch.h> 74 #include <sys/endian.h> 75 #include <sys/mman.h> 76 #if defined(__FreeBSD__) 77 #include <sys/rman.h> 78 #include <sys/memrange.h> 79 #if __FreeBSD_version >= 800004 80 #include <dev/agp/agpvar.h> 81 #else /* __FreeBSD_version >= 800004 */ 82 #include <pci/agpvar.h> 83 #endif /* __FreeBSD_version >= 800004 */ 84 #include <sys/agpio.h> 85 #if __FreeBSD_version >= 500000 86 #include <sys/mutex.h> 87 #include <dev/pci/pcivar.h> 88 #include <sys/selinfo.h> 89 #else /* __FreeBSD_version >= 500000 */ 90 #include <pci/pcivar.h> 91 #include <sys/select.h> 92 #endif /* __FreeBSD_version < 500000 */ 93 #elif defined(__NetBSD__) 94 #include <machine/mtrr.h> 95 #include <sys/vnode.h> 96 #include <sys/select.h> 97 #include <sys/device.h> 98 #include <sys/resourcevar.h> 99 #include <sys/lkm.h> 100 #include <sys/agpio.h> 101 #include <sys/ttycom.h> 102 #include <uvm/uvm.h> 103 #include <dev/pci/pcireg.h> 104 #include <dev/pci/pcivar.h> 105 #include <dev/pci/agpvar.h> 106 #elif defined(__OpenBSD__) 107 #include <sys/lkm.h> 108 #include <uvm/uvm.h> 109 #endif 110 #include <sys/bus.h> 111 112 #include "drm.h" 113 #include "drm_linux_list.h" 114 #include "drm_atomic.h" 115 #include "drm_internal.h" 116 117 #ifdef __FreeBSD__ 118 #include <opt_drm.h> 119 #ifdef DRM_DEBUG 120 #undef DRM_DEBUG 121 #define DRM_DEBUG_DEFAULT_ON 1 122 #endif /* DRM_DEBUG */ 123 #endif 124 125 #if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__) 126 #include <sys/file.h> 127 #include <sys/proc.h> 128 #include <machine/../linux/linux.h> 129 #include <machine/../linux/linux_proto.h> 130 #else 131 /* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't 132 * supported on this OS yet. 133 */ 134 #undef DRM_LINUX 135 #define DRM_LINUX 0 136 #endif 137 138 #define DRM_HASH_SIZE 16 /* Size of key hash table */ 139 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 140 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 141 142 #define DRM_MEM_DMA 0 143 #define DRM_MEM_SAREA 1 144 #define DRM_MEM_DRIVER 2 145 #define DRM_MEM_MAGIC 3 146 #define DRM_MEM_IOCTLS 4 147 #define DRM_MEM_MAPS 5 148 #define DRM_MEM_BUFS 6 149 #define DRM_MEM_SEGS 7 150 #define DRM_MEM_PAGES 8 151 #define DRM_MEM_FILES 9 152 #define DRM_MEM_QUEUES 10 153 #define DRM_MEM_CMDS 11 154 #define DRM_MEM_MAPPINGS 12 155 #define DRM_MEM_BUFLISTS 13 156 #define DRM_MEM_AGPLISTS 14 157 #define DRM_MEM_TOTALAGP 15 158 #define DRM_MEM_BOUNDAGP 16 159 #define DRM_MEM_CTXBITMAP 17 160 #define DRM_MEM_STUB 18 161 #define DRM_MEM_SGLISTS 19 162 #define DRM_MEM_DRAWABLE 20 163 164 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 165 166 /* Internal types and structures */ 167 #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 168 #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 169 #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 170 171 #define DRM_IF_VERSION(maj, min) (maj << 16 | min) 172 173 MALLOC_DECLARE(M_DRM); 174 175 #define __OS_HAS_AGP 1 176 177 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) 178 #define DRM_DEV_UID 0 179 #define DRM_DEV_GID 0 180 181 #define wait_queue_head_t atomic_t 182 #define DRM_WAKEUP(w) wakeup((void *)w) 183 #define DRM_WAKEUP_INT(w) wakeup(w) 184 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) 185 186 #if defined(__FreeBSD__) && __FreeBSD_version < 502109 187 #define bus_alloc_resource_any(dev, type, rid, flags) \ 188 bus_alloc_resource(dev, type, rid, 0ul, ~0ul, 1, flags) 189 #endif 190 191 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 192 #define DRM_CURPROC curthread 193 #define DRM_STRUCTPROC struct thread 194 #define DRM_SPINTYPE struct mtx 195 #define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF) 196 #define DRM_SPINUNINIT(l) mtx_destroy(l) 197 #define DRM_SPINLOCK(l) mtx_lock(l) 198 #define DRM_SPINUNLOCK(u) mtx_unlock(u) 199 #define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \ 200 mtx_lock(l); \ 201 (void)irqflags; \ 202 } while (0) 203 #define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u) 204 #define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) 205 #define DRM_CURRENTPID curthread->td_proc->p_pid 206 #define DRM_LOCK() mtx_lock(&dev->dev_lock) 207 #define DRM_UNLOCK() mtx_unlock(&dev->dev_lock) 208 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) 209 #else /* __FreeBSD__ && __FreeBSD_version >= 500000 */ 210 #define DRM_CURPROC curproc 211 #define DRM_STRUCTPROC struct proc 212 #define DRM_SPINTYPE struct simplelock 213 #define DRM_SPININIT(l,name) 214 #define DRM_SPINUNINIT(l) 215 #define DRM_SPINLOCK(l) 216 #define DRM_SPINUNLOCK(u) 217 #define DRM_SPINLOCK_ASSERT(l) 218 #define DRM_CURRENTPID curproc->p_pid 219 #define DRM_LOCK() 220 #define DRM_UNLOCK() 221 #define DRM_SYSCTL_HANDLER_ARGS SYSCTL_HANDLER_ARGS 222 #define spldrm() spltty() 223 #endif /* __NetBSD__ || __OpenBSD__ */ 224 225 #define DRM_IRQ_ARGS void *arg 226 typedef void irqreturn_t; 227 #define IRQ_HANDLED /* nothing */ 228 #define IRQ_NONE /* nothing */ 229 230 enum { 231 DRM_IS_NOT_AGP, 232 DRM_IS_AGP, 233 DRM_MIGHT_BE_AGP 234 }; 235 #define DRM_AGP_MEM struct agp_memory_info 236 237 #if defined(__FreeBSD__) 238 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) 239 #elif defined(__NetBSD__) 240 #define drm_get_device_from_kdev(_kdev) device_lookup(&drm_cd, minor(_kdev)) 241 #elif defined(__OpenBSD__) 242 #define drm_get_device_from_kdev(_kdev) device_lookup(&drm_cd, \ 243 minor(_kdev)))->dv_cfdata->cf_driver->cd_devs[minor(_kdev)] 244 #endif 245 246 #if defined(__FreeBSD__) 247 #define PAGE_ALIGN(addr) round_page(addr) 248 /* DRM_SUSER returns true if the user is superuser */ 249 #if __FreeBSD_version >= 700000 250 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) 251 #else 252 #define DRM_SUSER(p) (suser(p) == 0) 253 #endif 254 #define DRM_AGP_FIND_DEVICE() agp_find_device() 255 #define DRM_MTRR_WC MDF_WRITECOMBINE 256 #define jiffies ticks 257 258 #else /* __FreeBSD__ */ 259 260 #define CDEV_MAJOR 34 261 #define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) 262 /* DRM_SUSER returns true if the user is superuser */ 263 #define DRM_SUSER(p) (suser(p->p_ucred, &p->p_acflag) == 0) 264 #define DRM_AGP_FIND_DEVICE() agp_find_device(0) 265 #define DRM_MTRR_WC MTRR_TYPE_WC 266 #define jiffies hardclock_ticks 267 268 typedef struct drm_device *device_t; 269 extern struct cfdriver drm_cd; 270 #endif /* !__FreeBSD__ */ 271 272 /* Capabilities taken from src/sys/dev/pci/pcireg.h. */ 273 #ifndef PCIY_AGP 274 #define PCIY_AGP 0x02 275 #endif 276 277 #ifndef PCIY_EXPRESS 278 #define PCIY_EXPRESS 0x10 279 #endif 280 281 typedef unsigned long dma_addr_t; 282 typedef u_int64_t u64; 283 typedef u_int32_t u32; 284 typedef u_int16_t u16; 285 typedef u_int8_t u8; 286 287 /* DRM_READMEMORYBARRIER() prevents reordering of reads. 288 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. 289 * DRM_MEMORYBARRIER() prevents reordering of reads and writes. 290 */ 291 #if defined(__i386__) 292 #define DRM_READMEMORYBARRIER() __asm __volatile( \ 293 "lock; addl $0,0(%%esp)" : : : "memory"); 294 #define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); 295 #define DRM_MEMORYBARRIER() __asm __volatile( \ 296 "lock; addl $0,0(%%esp)" : : : "memory"); 297 #elif defined(__alpha__) 298 #define DRM_READMEMORYBARRIER() alpha_mb(); 299 #define DRM_WRITEMEMORYBARRIER() alpha_wmb(); 300 #define DRM_MEMORYBARRIER() alpha_mb(); 301 #elif defined(__amd64__) 302 #define DRM_READMEMORYBARRIER() __asm __volatile( \ 303 "lock; addl $0,0(%%rsp)" : : : "memory"); 304 #define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); 305 #define DRM_MEMORYBARRIER() __asm __volatile( \ 306 "lock; addl $0,0(%%rsp)" : : : "memory"); 307 #endif 308 309 #ifdef __FreeBSD__ 310 #define DRM_READ8(map, offset) \ 311 *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) 312 #define DRM_READ16(map, offset) \ 313 *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) 314 #define DRM_READ32(map, offset) \ 315 *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) 316 #define DRM_WRITE8(map, offset, val) \ 317 *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) = val 318 #define DRM_WRITE16(map, offset, val) \ 319 *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) = val 320 #define DRM_WRITE32(map, offset, val) \ 321 *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) = val 322 323 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 324 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) 325 326 #else /* __FreeBSD__ */ 327 328 typedef vaddr_t vm_offset_t; 329 330 #define DRM_READ8(map, offset) \ 331 bus_space_read_1( (map)->bst, (map)->bsh, (offset)) 332 #define DRM_READ16(map, offset) \ 333 bus_space_read_2( (map)->bst, (map)->bsh, (offset)) 334 #define DRM_READ32(map, offset) \ 335 bus_space_read_4( (map)->bst, (map)->bsh, (offset)) 336 #define DRM_WRITE8(map, offset, val) \ 337 bus_space_write_1((map)->bst, (map)->bsh, (offset), (val)) 338 #define DRM_WRITE16(map, offset, val) \ 339 bus_space_write_2((map)->bst, (map)->bsh, (offset), (val)) 340 #define DRM_WRITE32(map, offset, val) \ 341 bus_space_write_4((map)->bst, (map)->bsh, (offset), (val)) 342 343 #define DRM_VERIFYAREA_READ( uaddr, size ) \ 344 (!uvm_useracc((caddr_t)uaddr, size, VM_PROT_READ)) 345 #endif /* !__FreeBSD__ */ 346 347 #define DRM_COPY_TO_USER(user, kern, size) \ 348 copyout(kern, user, size) 349 #define DRM_COPY_FROM_USER(kern, user, size) \ 350 copyin(user, kern, size) 351 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ 352 copyin(arg2, arg1, arg3) 353 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ 354 copyout(arg2, arg1, arg3) 355 #if __FreeBSD_version > 500000 356 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 357 ((val) = fuword32(uaddr), 0) 358 #else 359 #define DRM_GET_USER_UNCHECKED(val, uaddr) \ 360 ((val) = fuword(uaddr), 0) 361 #endif 362 363 #define cpu_to_le32(x) htole32(x) 364 #define le32_to_cpu(x) le32toh(x) 365 366 #define DRM_HZ hz 367 #define DRM_UDELAY(udelay) DELAY(udelay) 368 #define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ 369 370 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 371 (_map) = (_dev)->context_sareas[_ctx]; \ 372 } while(0) 373 374 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ 375 do { \ 376 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ 377 dev->lock.file_priv != file_priv) { \ 378 DRM_ERROR("%s called without lock held\n", \ 379 __FUNCTION__); \ 380 return EINVAL; \ 381 } \ 382 } while (0) 383 384 #if defined(__FreeBSD__) && __FreeBSD_version > 500000 385 /* Returns -errno to shared code */ 386 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 387 for ( ret = 0 ; !ret && !(condition) ; ) { \ 388 DRM_UNLOCK(); \ 389 mtx_lock(&dev->irq_lock); \ 390 if (!(condition)) \ 391 ret = -mtx_sleep(&(queue), &dev->irq_lock, \ 392 PZERO | PCATCH, "drmwtq", (timeout)); \ 393 mtx_unlock(&dev->irq_lock); \ 394 DRM_LOCK(); \ 395 } 396 #else 397 /* Returns -errno to shared code */ 398 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ 399 for ( ret = 0 ; !ret && !(condition) ; ) { \ 400 int s = spldrm(); \ 401 if (!(condition)) \ 402 ret = -tsleep( &(queue), PZERO | PCATCH, \ 403 "drmwtq", (timeout) ); \ 404 splx(s); \ 405 } 406 #endif 407 408 #define DRM_ERROR(fmt, arg...) \ 409 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ 410 DRM_CURRENTPID, __func__ , ## arg) 411 412 #define DRM_INFO(fmt, arg...) printf("info: [" DRM_NAME "] " fmt , ## arg) 413 414 #define DRM_DEBUG(fmt, arg...) do { \ 415 if (drm_debug_flag) \ 416 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ 417 __func__ , ## arg); \ 418 } while (0) 419 420 typedef struct drm_pci_id_list 421 { 422 int vendor; 423 int device; 424 long driver_private; 425 char *name; 426 } drm_pci_id_list_t; 427 428 #define DRM_AUTH 0x1 429 #define DRM_MASTER 0x2 430 #define DRM_ROOT_ONLY 0x4 431 typedef struct drm_ioctl_desc { 432 unsigned long cmd; 433 int (*func)(struct drm_device *dev, void *data, 434 struct drm_file *file_priv); 435 int flags; 436 } drm_ioctl_desc_t; 437 /** 438 * Creates a driver or general drm_ioctl_desc array entry for the given 439 * ioctl, for use by drm_ioctl(). 440 */ 441 #define DRM_IOCTL_DEF(ioctl, func, flags) \ 442 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} 443 444 typedef struct drm_magic_entry { 445 drm_magic_t magic; 446 struct drm_file *priv; 447 struct drm_magic_entry *next; 448 } drm_magic_entry_t; 449 450 typedef struct drm_magic_head { 451 struct drm_magic_entry *head; 452 struct drm_magic_entry *tail; 453 } drm_magic_head_t; 454 455 typedef struct drm_buf { 456 int idx; /* Index into master buflist */ 457 int total; /* Buffer size */ 458 int order; /* log-base-2(total) */ 459 int used; /* Amount of buffer in use (for DMA) */ 460 unsigned long offset; /* Byte offset (used internally) */ 461 void *address; /* Address of buffer */ 462 unsigned long bus_address; /* Bus address of buffer */ 463 struct drm_buf *next; /* Kernel-only: used for free list */ 464 __volatile__ int pending; /* On hardware DMA queue */ 465 struct drm_file *file_priv; /* Unique identifier of holding process */ 466 int context; /* Kernel queue for this buffer */ 467 enum { 468 DRM_LIST_NONE = 0, 469 DRM_LIST_FREE = 1, 470 DRM_LIST_WAIT = 2, 471 DRM_LIST_PEND = 3, 472 DRM_LIST_PRIO = 4, 473 DRM_LIST_RECLAIM = 5 474 } list; /* Which list we're on */ 475 476 int dev_priv_size; /* Size of buffer private stoarge */ 477 void *dev_private; /* Per-buffer private storage */ 478 } drm_buf_t; 479 480 typedef struct drm_freelist { 481 int initialized; /* Freelist in use */ 482 atomic_t count; /* Number of free buffers */ 483 drm_buf_t *next; /* End pointer */ 484 485 int low_mark; /* Low water mark */ 486 int high_mark; /* High water mark */ 487 } drm_freelist_t; 488 489 typedef struct drm_dma_handle { 490 void *vaddr; 491 bus_addr_t busaddr; 492 #if defined(__FreeBSD__) 493 bus_dma_tag_t tag; 494 bus_dmamap_t map; 495 #elif defined(__NetBSD__) 496 bus_dma_segment_t seg; 497 #endif 498 } drm_dma_handle_t; 499 500 typedef struct drm_buf_entry { 501 int buf_size; 502 int buf_count; 503 drm_buf_t *buflist; 504 int seg_count; 505 drm_dma_handle_t **seglist; 506 int page_order; 507 508 drm_freelist_t freelist; 509 } drm_buf_entry_t; 510 511 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 512 struct drm_file { 513 TAILQ_ENTRY(drm_file) link; 514 int authenticated; 515 int master; 516 int minor; 517 pid_t pid; 518 uid_t uid; 519 int refs; 520 drm_magic_t magic; 521 unsigned long ioctl_count; 522 void *driver_priv; 523 }; 524 525 typedef struct drm_lock_data { 526 drm_hw_lock_t *hw_lock; /* Hardware lock */ 527 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/ 528 int lock_queue; /* Queue of blocked processes */ 529 unsigned long lock_time; /* Time of last lock in jiffies */ 530 } drm_lock_data_t; 531 532 /* This structure, in the struct drm_device, is always initialized while the 533 * device 534 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 535 * when set marks that no further bufs may be allocated until device teardown 536 * occurs (when the last open of the device has closed). The high/low 537 * watermarks of bufs are only touched by the X Server, and thus not 538 * concurrently accessed, so no locking is needed. 539 */ 540 typedef struct drm_device_dma { 541 drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; 542 int buf_count; 543 drm_buf_t **buflist; /* Vector of pointers info bufs */ 544 int seg_count; 545 int page_count; 546 unsigned long *pagelist; 547 unsigned long byte_count; 548 enum { 549 _DRM_DMA_USE_AGP = 0x01, 550 _DRM_DMA_USE_SG = 0x02 551 } flags; 552 } drm_device_dma_t; 553 554 typedef struct drm_agp_mem { 555 void *handle; 556 unsigned long bound; /* address */ 557 int pages; 558 struct drm_agp_mem *prev; 559 struct drm_agp_mem *next; 560 } drm_agp_mem_t; 561 562 typedef struct drm_agp_head { 563 device_t agpdev; 564 struct agp_info info; 565 const char *chipset; 566 drm_agp_mem_t *memory; 567 unsigned long mode; 568 int enabled; 569 int acquired; 570 unsigned long base; 571 int mtrr; 572 int cant_use_aperture; 573 unsigned long page_mask; 574 } drm_agp_head_t; 575 576 typedef struct drm_sg_mem { 577 unsigned long handle; 578 void *virtual; 579 int pages; 580 dma_addr_t *busaddr; 581 drm_dma_handle_t *dmah; /* Handle to PCI memory for ATI PCIGART table */ 582 } drm_sg_mem_t; 583 584 typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; 585 586 typedef struct drm_local_map { 587 unsigned long offset; /* Physical address (0 for SAREA)*/ 588 unsigned long size; /* Physical size (bytes) */ 589 drm_map_type_t type; /* Type of memory mapped */ 590 drm_map_flags_t flags; /* Flags */ 591 void *handle; /* User-space: "Handle" to pass to mmap */ 592 /* Kernel-space: kernel-virtual address */ 593 int mtrr; /* Boolean: MTRR used */ 594 /* Private data */ 595 int rid; /* PCI resource ID for bus_space */ 596 struct resource *bsr; 597 bus_space_tag_t bst; 598 bus_space_handle_t bsh; 599 drm_dma_handle_t *dmah; 600 TAILQ_ENTRY(drm_local_map) link; 601 } drm_local_map_t; 602 603 TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig); 604 typedef struct drm_vbl_sig { 605 TAILQ_ENTRY(drm_vbl_sig) link; 606 unsigned int sequence; 607 int signo; 608 int pid; 609 } drm_vbl_sig_t; 610 611 /* location of GART table */ 612 #define DRM_ATI_GART_MAIN 1 613 #define DRM_ATI_GART_FB 2 614 615 #define DRM_ATI_GART_PCI 1 616 #define DRM_ATI_GART_PCIE 2 617 #define DRM_ATI_GART_IGP 3 618 619 struct drm_ati_pcigart_info { 620 int gart_table_location; 621 int gart_reg_if; 622 void *addr; 623 dma_addr_t bus_addr; 624 dma_addr_t table_mask; 625 dma_addr_t member_mask; 626 struct drm_dma_handle *table_handle; 627 drm_local_map_t mapping; 628 int table_size; 629 }; 630 631 #ifndef DMA_BIT_MASK 632 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) 633 #endif 634 635 #define upper_32_bits(_val) (((u64)(_val)) >> 32) 636 637 struct drm_driver_info { 638 int (*load)(struct drm_device *, unsigned long flags); 639 int (*firstopen)(struct drm_device *); 640 int (*open)(struct drm_device *, drm_file_t *); 641 void (*preclose)(struct drm_device *, struct drm_file *file_priv); 642 void (*postclose)(struct drm_device *, drm_file_t *); 643 void (*lastclose)(struct drm_device *); 644 int (*unload)(struct drm_device *); 645 void (*reclaim_buffers_locked)(struct drm_device *, 646 struct drm_file *file_priv); 647 int (*dma_ioctl)(struct drm_device *dev, void *data, 648 struct drm_file *file_priv); 649 void (*dma_ready)(struct drm_device *); 650 int (*dma_quiescent)(struct drm_device *); 651 int (*dma_flush_block_and_flush)(struct drm_device *, int context, 652 drm_lock_flags_t flags); 653 int (*dma_flush_unblock)(struct drm_device *, int context, 654 drm_lock_flags_t flags); 655 int (*context_ctor)(struct drm_device *dev, int context); 656 int (*context_dtor)(struct drm_device *dev, int context); 657 int (*kernel_context_switch)(struct drm_device *dev, int old, 658 int new); 659 int (*kernel_context_switch_unlock)(struct drm_device *dev); 660 void (*irq_preinstall)(struct drm_device *dev); 661 int (*irq_postinstall)(struct drm_device *dev); 662 void (*irq_uninstall)(struct drm_device *dev); 663 void (*irq_handler)(DRM_IRQ_ARGS); 664 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); 665 int (*enable_vblank)(struct drm_device *dev, int crtc); 666 void (*disable_vblank)(struct drm_device *dev, int crtc); 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_vbl_irq2 :1; 704 unsigned use_mtrr :1; 705 }; 706 707 /* Length for the array of resource pointers for drm_get_resource_*. */ 708 #define DRM_MAX_PCI_RESOURCE 3 709 710 /** 711 * DRM device functions structure 712 */ 713 struct drm_device { 714 #if defined(__NetBSD__) || defined(__OpenBSD__) 715 struct device device; /* softc is an extension of struct device */ 716 #endif 717 718 struct drm_driver_info driver; 719 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ 720 721 u_int16_t pci_device; /* PCI device id */ 722 u_int16_t pci_vendor; /* PCI vendor id */ 723 724 char *unique; /* Unique identifier: e.g., busid */ 725 int unique_len; /* Length of unique field */ 726 #ifdef __FreeBSD__ 727 device_t device; /* Device instance from newbus */ 728 #endif 729 struct cdev *devnode; /* Device number for mknod */ 730 int if_version; /* Highest interface version set */ 731 732 int flags; /* Flags to open(2) */ 733 734 /* Locks */ 735 #if defined(__FreeBSD__) && __FreeBSD_version > 500000 736 struct mtx vbl_lock; /* protects vblank operations */ 737 struct mtx dma_lock; /* protects dev->dma */ 738 struct mtx irq_lock; /* protects irq condition checks */ 739 struct mtx dev_lock; /* protects everything else */ 740 #endif 741 DRM_SPINTYPE drw_lock; 742 743 /* Usage Counters */ 744 int open_count; /* Outstanding files open */ 745 int buf_use; /* Buffers in use -- cannot alloc */ 746 747 /* Performance counters */ 748 unsigned long counters; 749 drm_stat_type_t types[15]; 750 atomic_t counts[15]; 751 752 /* Authentication */ 753 drm_file_list_t files; 754 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 755 756 /* Linked list of mappable regions. Protected by dev_lock */ 757 drm_map_list_t maplist; 758 759 drm_local_map_t **context_sareas; 760 int max_context; 761 762 drm_lock_data_t lock; /* Information on hardware lock */ 763 764 /* DMA queues (contexts) */ 765 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 766 767 /* Context support */ 768 int irq; /* Interrupt used by board */ 769 int irq_enabled; /* True if the irq handler is enabled */ 770 #ifdef __FreeBSD__ 771 int irqrid; /* Interrupt used by board */ 772 struct resource *irqr; /* Resource for interrupt used by board */ 773 #elif defined(__NetBSD__) || defined(__OpenBSD__) 774 struct pci_attach_args pa; 775 #endif 776 void *irqh; /* Handle from bus_setup_intr */ 777 778 /* Storage of resource pointers for drm_get_resource_* */ 779 struct resource *pcir[DRM_MAX_PCI_RESOURCE]; 780 int pcirid[DRM_MAX_PCI_RESOURCE]; 781 782 int pci_domain; 783 int pci_bus; 784 int pci_slot; 785 int pci_func; 786 787 atomic_t context_flag; /* Context swapping flag */ 788 int last_context; /* Last current context */ 789 wait_queue_head_t *vbl_queue; /* vblank wait queue */ 790 atomic_t *_vblank_count; /* number of VBLANK interrupts */ 791 /* (driver must alloc the right number of counters) */ 792 struct drm_vbl_sig_list *vbl_sigs; /* signal list to send on VBLANK */ 793 atomic_t vbl_signal_pending; /* number of signals pending on all crtcs*/ 794 atomic_t *vblank_refcount; /* number of users of vblank interrupts per crtc */ 795 u32 *last_vblank; /* protected by dev->vbl_lock, used */ 796 /* for wraparound handling */ 797 int *vblank_enabled; /* so we don't call enable more than */ 798 /* once per disable */ 799 u32 *vblank_premodeset; /* for compensation of spurious wraparounds */ 800 int *vblank_suspend; /* Don't wait while crtc is likely disabled */ 801 struct callout vblank_disable_timer; 802 u32 max_vblank_count; /* size of vblank counter register */ 803 int num_crtcs; 804 805 #ifdef __FreeBSD__ 806 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 807 #elif defined(__NetBSD__) 808 pid_t buf_pgid; 809 #endif 810 811 /* Sysctl support */ 812 struct drm_sysctl_info *sysctl; 813 814 drm_agp_head_t *agp; 815 drm_sg_mem_t *sg; /* Scatter gather memory */ 816 atomic_t *ctx_bitmap; 817 void *dev_private; 818 unsigned int agp_buffer_token; 819 drm_local_map_t *agp_buffer_map; 820 821 struct unrhdr *drw_unrhdr; 822 /* RB tree of drawable infos */ 823 RB_HEAD(drawable_tree, bsd_drm_drawable_info) drw_head; 824 825 struct task locked_task; 826 void (*locked_task_call)(struct drm_device *dev); 827 }; 828 829 extern int drm_debug_flag; 830 831 /* Device setup support (drm_drv.c) */ 832 #ifdef __FreeBSD__ 833 int drm_probe(device_t nbdev, drm_pci_id_list_t *idlist); 834 int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist); 835 int drm_detach(device_t nbdev); 836 d_ioctl_t drm_ioctl; 837 d_open_t drm_open; 838 d_close_t drm_close; 839 d_read_t drm_read; 840 d_poll_t drm_poll; 841 d_mmap_t drm_mmap; 842 #elif defined(__NetBSD__) || defined(__OpenBSD__) 843 int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist); 844 int drm_attach(struct pci_attach_args *pa, dev_t kdev, drm_pci_id_list_t *idlist); 845 dev_type_ioctl(drm_ioctl); 846 dev_type_open(drm_open); 847 dev_type_close(drm_close); 848 dev_type_read(drm_read); 849 dev_type_poll(drm_poll); 850 dev_type_mmap(drm_mmap); 851 #endif 852 extern drm_local_map_t *drm_getsarea(struct drm_device *dev); 853 854 /* File operations helpers (drm_fops.c) */ 855 #ifdef __FreeBSD__ 856 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, 857 DRM_STRUCTPROC *p, 858 struct drm_device *dev); 859 extern drm_file_t *drm_find_file_by_proc(struct drm_device *dev, 860 DRM_STRUCTPROC *p); 861 #elif defined(__NetBSD__) || defined(__OpenBSD__) 862 extern int drm_open_helper(dev_t kdev, int flags, int fmt, 863 DRM_STRUCTPROC *p, 864 struct drm_device *dev); 865 extern drm_file_t *drm_find_file_by_proc(struct drm_device *dev, 866 DRM_STRUCTPROC *p); 867 #endif /* __NetBSD__ || __OpenBSD__ */ 868 869 /* Memory management support (drm_memory.c) */ 870 void drm_mem_init(void); 871 void drm_mem_uninit(void); 872 void *drm_alloc(size_t size, int area); 873 void *drm_calloc(size_t nmemb, size_t size, int area); 874 void *drm_realloc(void *oldpt, size_t oldsize, size_t size, 875 int area); 876 void drm_free(void *pt, size_t size, int area); 877 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); 878 void drm_ioremapfree(drm_local_map_t *map); 879 int drm_mtrr_add(unsigned long offset, size_t size, int flags); 880 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); 881 882 int drm_context_switch(struct drm_device *dev, int old, int new); 883 int drm_context_switch_complete(struct drm_device *dev, int new); 884 885 int drm_ctxbitmap_init(struct drm_device *dev); 886 void drm_ctxbitmap_cleanup(struct drm_device *dev); 887 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); 888 int drm_ctxbitmap_next(struct drm_device *dev); 889 890 /* Locking IOCTL support (drm_lock.c) */ 891 int drm_lock_take(__volatile__ unsigned int *lock, 892 unsigned int context); 893 int drm_lock_transfer(struct drm_device *dev, 894 __volatile__ unsigned int *lock, 895 unsigned int context); 896 int drm_lock_free(struct drm_device *dev, 897 __volatile__ unsigned int *lock, 898 unsigned int context); 899 900 /* Buffer management support (drm_bufs.c) */ 901 unsigned long drm_get_resource_start(struct drm_device *dev, 902 unsigned int resource); 903 unsigned long drm_get_resource_len(struct drm_device *dev, 904 unsigned int resource); 905 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); 906 int drm_order(unsigned long size); 907 int drm_addmap(struct drm_device *dev, unsigned long offset, 908 unsigned long size, 909 drm_map_type_t type, drm_map_flags_t flags, 910 drm_local_map_t **map_ptr); 911 int drm_addbufs_pci(struct drm_device *dev, drm_buf_desc_t *request); 912 int drm_addbufs_sg(struct drm_device *dev, drm_buf_desc_t *request); 913 int drm_addbufs_agp(struct drm_device *dev, drm_buf_desc_t *request); 914 915 /* DMA support (drm_dma.c) */ 916 int drm_dma_setup(struct drm_device *dev); 917 void drm_dma_takedown(struct drm_device *dev); 918 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); 919 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); 920 #define drm_core_reclaim_buffers drm_reclaim_buffers 921 922 /* IRQ support (drm_irq.c) */ 923 int drm_irq_install(struct drm_device *dev); 924 int drm_irq_uninstall(struct drm_device *dev); 925 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); 926 void drm_driver_irq_preinstall(struct drm_device *dev); 927 void drm_driver_irq_postinstall(struct drm_device *dev); 928 void drm_driver_irq_uninstall(struct drm_device *dev); 929 void drm_handle_vblank(struct drm_device *dev, int crtc); 930 u32 drm_vblank_count(struct drm_device *dev, int crtc); 931 int drm_vblank_get(struct drm_device *dev, int crtc); 932 void drm_vblank_put(struct drm_device *dev, int crtc); 933 void drm_update_vblank_count(struct drm_device *dev, int crtc); 934 int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); 935 int drm_vblank_init(struct drm_device *dev, int num_crtcs); 936 void drm_vbl_send_signals(struct drm_device *dev, int crtc); 937 int drm_modeset_ctl(struct drm_device *dev, void *data, 938 struct drm_file *file_priv); 939 940 /* AGP/PCI Express/GART support (drm_agpsupport.c) */ 941 int drm_device_is_agp(struct drm_device *dev); 942 int drm_device_is_pcie(struct drm_device *dev); 943 drm_agp_head_t *drm_agp_init(void); 944 int drm_agp_acquire(struct drm_device *dev); 945 int drm_agp_release(struct drm_device *dev); 946 int drm_agp_info(struct drm_device * dev, drm_agp_info_t *info); 947 int drm_agp_enable(struct drm_device *dev, drm_agp_mode_t mode); 948 void *drm_agp_allocate_memory(size_t pages, u32 type); 949 int drm_agp_free_memory(void *handle); 950 int drm_agp_bind_memory(void *handle, off_t start); 951 int drm_agp_unbind_memory(void *handle); 952 int drm_agp_alloc(struct drm_device *dev, drm_agp_buffer_t *request); 953 int drm_agp_free(struct drm_device *dev, drm_agp_buffer_t *request); 954 int drm_agp_bind(struct drm_device *dev, drm_agp_binding_t *request); 955 int drm_agp_unbind(struct drm_device *dev, drm_agp_binding_t *request); 956 957 /* Scatter Gather Support (drm_scatter.c) */ 958 void drm_sg_cleanup(drm_sg_mem_t *entry); 959 int drm_sg_alloc(struct drm_device *dev, drm_scatter_gather_t * request); 960 961 #ifdef __FreeBSD__ 962 /* sysctl support (drm_sysctl.h) */ 963 extern int drm_sysctl_init(struct drm_device *dev); 964 extern int drm_sysctl_cleanup(struct drm_device *dev); 965 #endif /* __FreeBSD__ */ 966 967 /* ATI PCIGART support (ati_pcigart.c) */ 968 int drm_ati_pcigart_init(struct drm_device *dev, 969 struct drm_ati_pcigart_info *gart_info); 970 int drm_ati_pcigart_cleanup(struct drm_device *dev, 971 struct drm_ati_pcigart_info *gart_info); 972 973 /* Locking IOCTL support (drm_drv.c) */ 974 int drm_lock(struct drm_device *dev, void *data, 975 struct drm_file *file_priv); 976 int drm_unlock(struct drm_device *dev, void *data, 977 struct drm_file *file_priv); 978 int drm_version(struct drm_device *dev, void *data, 979 struct drm_file *file_priv); 980 int drm_setversion(struct drm_device *dev, void *data, 981 struct drm_file *file_priv); 982 983 /* Misc. IOCTL support (drm_ioctl.c) */ 984 int drm_irq_by_busid(struct drm_device *dev, void *data, 985 struct drm_file *file_priv); 986 int drm_getunique(struct drm_device *dev, void *data, 987 struct drm_file *file_priv); 988 int drm_setunique(struct drm_device *dev, void *data, 989 struct drm_file *file_priv); 990 int drm_getmap(struct drm_device *dev, void *data, 991 struct drm_file *file_priv); 992 int drm_getclient(struct drm_device *dev, void *data, 993 struct drm_file *file_priv); 994 int drm_getstats(struct drm_device *dev, void *data, 995 struct drm_file *file_priv); 996 int drm_noop(struct drm_device *dev, void *data, 997 struct drm_file *file_priv); 998 999 /* Context IOCTL support (drm_context.c) */ 1000 int drm_resctx(struct drm_device *dev, void *data, 1001 struct drm_file *file_priv); 1002 int drm_addctx(struct drm_device *dev, void *data, 1003 struct drm_file *file_priv); 1004 int drm_modctx(struct drm_device *dev, void *data, 1005 struct drm_file *file_priv); 1006 int drm_getctx(struct drm_device *dev, void *data, 1007 struct drm_file *file_priv); 1008 int drm_switchctx(struct drm_device *dev, void *data, 1009 struct drm_file *file_priv); 1010 int drm_newctx(struct drm_device *dev, void *data, 1011 struct drm_file *file_priv); 1012 int drm_rmctx(struct drm_device *dev, void *data, 1013 struct drm_file *file_priv); 1014 int drm_setsareactx(struct drm_device *dev, void *data, 1015 struct drm_file *file_priv); 1016 int drm_getsareactx(struct drm_device *dev, void *data, 1017 struct drm_file *file_priv); 1018 1019 /* Drawable IOCTL support (drm_drawable.c) */ 1020 int drm_adddraw(struct drm_device *dev, void *data, 1021 struct drm_file *file_priv); 1022 int drm_rmdraw(struct drm_device *dev, void *data, 1023 struct drm_file *file_priv); 1024 int drm_update_draw(struct drm_device *dev, void *data, 1025 struct drm_file *file_priv); 1026 struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, 1027 int handle); 1028 1029 /* Authentication IOCTL support (drm_auth.c) */ 1030 int drm_getmagic(struct drm_device *dev, void *data, 1031 struct drm_file *file_priv); 1032 int drm_authmagic(struct drm_device *dev, void *data, 1033 struct drm_file *file_priv); 1034 1035 /* Buffer management support (drm_bufs.c) */ 1036 int drm_addmap_ioctl(struct drm_device *dev, void *data, 1037 struct drm_file *file_priv); 1038 int drm_rmmap_ioctl(struct drm_device *dev, void *data, 1039 struct drm_file *file_priv); 1040 int drm_addbufs_ioctl(struct drm_device *dev, void *data, 1041 struct drm_file *file_priv); 1042 int drm_infobufs(struct drm_device *dev, void *data, 1043 struct drm_file *file_priv); 1044 int drm_markbufs(struct drm_device *dev, void *data, 1045 struct drm_file *file_priv); 1046 int drm_freebufs(struct drm_device *dev, void *data, 1047 struct drm_file *file_priv); 1048 int drm_mapbufs(struct drm_device *dev, void *data, 1049 struct drm_file *file_priv); 1050 1051 /* DMA support (drm_dma.c) */ 1052 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); 1053 1054 /* IRQ support (drm_irq.c) */ 1055 int drm_control(struct drm_device *dev, void *data, struct drm_file *file_priv); 1056 int drm_wait_vblank(struct drm_device *dev, void *data, 1057 struct drm_file *file_priv); 1058 void drm_locked_tasklet(struct drm_device *dev, 1059 void (*tasklet)(struct drm_device *dev)); 1060 1061 /* AGP/GART support (drm_agpsupport.c) */ 1062 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, 1063 struct drm_file *file_priv); 1064 int drm_agp_release_ioctl(struct drm_device *dev, void *data, 1065 struct drm_file *file_priv); 1066 int drm_agp_enable_ioctl(struct drm_device *dev, void *data, 1067 struct drm_file *file_priv); 1068 int drm_agp_info_ioctl(struct drm_device *dev, void *data, 1069 struct drm_file *file_priv); 1070 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, 1071 struct drm_file *file_priv); 1072 int drm_agp_free_ioctl(struct drm_device *dev, void *data, 1073 struct drm_file *file_priv); 1074 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, 1075 struct drm_file *file_priv); 1076 int drm_agp_bind_ioctl(struct drm_device *dev, void *data, 1077 struct drm_file *file_priv); 1078 1079 /* Scatter Gather Support (drm_scatter.c) */ 1080 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, 1081 struct drm_file *file_priv); 1082 int drm_sg_free(struct drm_device *dev, void *data, 1083 struct drm_file *file_priv); 1084 1085 /* consistent PCI memory functions (drm_pci.c) */ 1086 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, 1087 size_t align, dma_addr_t maxaddr); 1088 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); 1089 1090 /* Inline replacements for DRM_IOREMAP macros */ 1091 static __inline__ void 1092 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) 1093 { 1094 map->handle = drm_ioremap(dev, map); 1095 } 1096 static __inline__ void 1097 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) 1098 { 1099 if ( map->handle && map->size ) 1100 drm_ioremapfree(map); 1101 } 1102 1103 static __inline__ struct drm_local_map * 1104 drm_core_findmap(struct drm_device *dev, unsigned long offset) 1105 { 1106 drm_local_map_t *map; 1107 1108 DRM_SPINLOCK_ASSERT(&dev->dev_lock); 1109 TAILQ_FOREACH(map, &dev->maplist, link) { 1110 if (map->offset == offset) 1111 return map; 1112 } 1113 return NULL; 1114 } 1115 1116 static __inline__ void drm_core_dropmap(struct drm_map *map) 1117 { 1118 } 1119 1120 #endif /* __KERNEL__ */ 1121 #endif /* _DRM_P_H_ */ 1122
Indexes created Thu Oct 02 14:10:14 GMT 2025