drmP.h revision 124164
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 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 6 * All rights reserved. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a 9 * copy of this software and associated documentation files (the "Software"), 10 * to deal in the Software without restriction, including without limitation 11 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 12 * and/or sell copies of the Software, and to permit persons to whom the 13 * Software is furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the next 16 * paragraph) shall be included in all copies or substantial portions of the 17 * Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 25 * OTHER DEALINGS IN THE SOFTWARE. 26 * 27 * Authors: 28 * Rickard E. (Rik) Faith <faith@valinux.com> 29 * Gareth Hughes <gareth@valinux.com> 30 * 31 * $FreeBSD: head/sys/dev/drm/drmP.h 124164 2004-01-06 04:34:53Z anholt $ 32 */ 33 34#ifndef _DRM_P_H_ 35#define _DRM_P_H_ 36 37#if defined(_KERNEL) || defined(__KERNEL__) 38 39/* DRM template customization defaults 40 */ 41#ifndef __HAVE_AGP 42#define __HAVE_AGP 0 43#endif 44#ifndef __HAVE_MTRR 45#define __HAVE_MTRR 0 46#endif 47#ifndef __HAVE_CTX_BITMAP 48#define __HAVE_CTX_BITMAP 0 49#endif 50#ifndef __HAVE_DMA 51#define __HAVE_DMA 0 52#endif 53#ifndef __HAVE_IRQ 54#define __HAVE_IRQ 0 55#endif 56 57#define DRM_DEBUG_CODE 0 /* Include debugging code (if > 1, then 58 also include looping detection. */ 59 60typedef struct drm_device drm_device_t; 61typedef struct drm_file drm_file_t; 62 63/* There's undoubtably more of this file to go into these OS dependent ones. */ 64 65#ifdef __FreeBSD__ 66#include "dev/drm/drm_os_freebsd.h" 67#elif defined __NetBSD__ 68#include "dev/drm/drm_os_netbsd.h" 69#endif 70 71#include "dev/drm/drm.h" 72 73/* Begin the DRM... */ 74 75#define DRM_HASH_SIZE 16 /* Size of key hash table */ 76#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ 77#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ 78 79#define DRM_FLAG_DEBUG 0x01 80 81#define DRM_MEM_DMA 0 82#define DRM_MEM_SAREA 1 83#define DRM_MEM_DRIVER 2 84#define DRM_MEM_MAGIC 3 85#define DRM_MEM_IOCTLS 4 86#define DRM_MEM_MAPS 5 87#define DRM_MEM_BUFS 6 88#define DRM_MEM_SEGS 7 89#define DRM_MEM_PAGES 8 90#define DRM_MEM_FILES 9 91#define DRM_MEM_QUEUES 10 92#define DRM_MEM_CMDS 11 93#define DRM_MEM_MAPPINGS 12 94#define DRM_MEM_BUFLISTS 13 95#define DRM_MEM_AGPLISTS 14 96#define DRM_MEM_TOTALAGP 15 97#define DRM_MEM_BOUNDAGP 16 98#define DRM_MEM_CTXBITMAP 17 99#define DRM_MEM_STUB 18 100#define DRM_MEM_SGLISTS 19 101 102#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) 103 104 /* Mapping helper macros */ 105#define DRM_IOREMAP(map, dev) \ 106 (map)->handle = DRM(ioremap)( dev, map ) 107 108#define DRM_IOREMAP_NOCACHE(map, dev) \ 109 (map)->handle = DRM(ioremap_nocache)( dev, map ) 110 111#define DRM_IOREMAPFREE(map, dev) \ 112 do { \ 113 if ( (map)->handle && (map)->size ) \ 114 DRM(ioremapfree)( map ); \ 115 } while (0) 116 117 /* Internal types and structures */ 118#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) 119#define DRM_MIN(a,b) ((a)<(b)?(a):(b)) 120#define DRM_MAX(a,b) ((a)>(b)?(a):(b)) 121 122#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 123 124#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ 125 (_map) = (_dev)->context_sareas[_ctx]; \ 126} while(0) 127 128 129typedef struct drm_pci_id_list 130{ 131 int vendor; 132 int device; 133 long driver_private; 134 char *name; 135} drm_pci_id_list_t; 136 137typedef struct drm_ioctl_desc { 138 int (*func)(DRM_IOCTL_ARGS); 139 int auth_needed; 140 int root_only; 141} drm_ioctl_desc_t; 142 143typedef struct drm_magic_entry { 144 drm_magic_t magic; 145 struct drm_file *priv; 146 struct drm_magic_entry *next; 147} drm_magic_entry_t; 148 149typedef struct drm_magic_head { 150 struct drm_magic_entry *head; 151 struct drm_magic_entry *tail; 152} drm_magic_head_t; 153 154typedef struct drm_buf { 155 int idx; /* Index into master buflist */ 156 int total; /* Buffer size */ 157 int order; /* log-base-2(total) */ 158 int used; /* Amount of buffer in use (for DMA) */ 159 unsigned long offset; /* Byte offset (used internally) */ 160 void *address; /* Address of buffer */ 161 unsigned long bus_address; /* Bus address of buffer */ 162 struct drm_buf *next; /* Kernel-only: used for free list */ 163 __volatile__ int pending; /* On hardware DMA queue */ 164 DRMFILE filp; /* Unique identifier of holding process */ 165 int context; /* Kernel queue for this buffer */ 166 enum { 167 DRM_LIST_NONE = 0, 168 DRM_LIST_FREE = 1, 169 DRM_LIST_WAIT = 2, 170 DRM_LIST_PEND = 3, 171 DRM_LIST_PRIO = 4, 172 DRM_LIST_RECLAIM = 5 173 } list; /* Which list we're on */ 174 175 int dev_priv_size; /* Size of buffer private stoarge */ 176 void *dev_private; /* Per-buffer private storage */ 177} drm_buf_t; 178 179typedef struct drm_freelist { 180 int initialized; /* Freelist in use */ 181 atomic_t count; /* Number of free buffers */ 182 drm_buf_t *next; /* End pointer */ 183 184 int low_mark; /* Low water mark */ 185 int high_mark; /* High water mark */ 186} drm_freelist_t; 187 188typedef struct drm_buf_entry { 189 int buf_size; 190 int buf_count; 191 drm_buf_t *buflist; 192 int seg_count; 193 int page_order; 194 vm_offset_t *seglist; 195 dma_addr_t *seglist_bus; 196 197 drm_freelist_t freelist; 198} drm_buf_entry_t; 199 200typedef struct drm_hw_lock { 201 __volatile__ unsigned int lock; 202 char padding[60]; /* Pad to cache line */ 203} drm_hw_lock_t; 204 205typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; 206struct drm_file { 207 TAILQ_ENTRY(drm_file) link; 208 int authenticated; 209 int minor; 210 pid_t pid; 211 uid_t uid; 212 int refs; 213 drm_magic_t magic; 214 unsigned long ioctl_count; 215 struct drm_device *devXX; 216#ifdef DRIVER_FILE_FIELDS 217 DRIVER_FILE_FIELDS; 218#endif 219}; 220 221typedef struct drm_lock_data { 222 drm_hw_lock_t *hw_lock; /* Hardware lock */ 223 DRMFILE filp; /* Unique identifier of holding process (NULL is kernel)*/ 224 int lock_queue; /* Queue of blocked processes */ 225 unsigned long lock_time; /* Time of last lock in jiffies */ 226} drm_lock_data_t; 227 228/* This structure, in the drm_device_t, is always initialized while the device 229 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which 230 * when set marks that no further bufs may be allocated until device teardown 231 * occurs (when the last open of the device has closed). The high/low 232 * watermarks of bufs are only touched by the X Server, and thus not 233 * concurrently accessed, so no locking is needed. 234 */ 235typedef struct drm_device_dma { 236 drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; 237 int buf_count; 238 drm_buf_t **buflist; /* Vector of pointers info bufs */ 239 int seg_count; 240 int page_count; 241 unsigned long *pagelist; 242 unsigned long byte_count; 243 enum { 244 _DRM_DMA_USE_AGP = 0x01, 245 _DRM_DMA_USE_SG = 0x02 246 } flags; 247 248 /* DMA support */ 249 drm_buf_t *this_buffer; /* Buffer being sent */ 250 drm_buf_t *next_buffer; /* Selected buffer to send */ 251} drm_device_dma_t; 252 253#if __REALLY_HAVE_AGP 254typedef struct drm_agp_mem { 255 void *handle; 256 unsigned long bound; /* address */ 257 int pages; 258 struct drm_agp_mem *prev; 259 struct drm_agp_mem *next; 260} drm_agp_mem_t; 261 262typedef struct drm_agp_head { 263 device_t agpdev; 264 struct agp_info info; 265 const char *chipset; 266 drm_agp_mem_t *memory; 267 unsigned long mode; 268 int enabled; 269 int acquired; 270 unsigned long base; 271 int mtrr; 272 int cant_use_aperture; 273 unsigned long page_mask; 274} drm_agp_head_t; 275#endif 276 277typedef struct drm_sg_mem { 278 unsigned long handle; 279 void *virtual; 280 int pages; 281 dma_addr_t *busaddr; 282} drm_sg_mem_t; 283 284typedef struct drm_local_map { 285 unsigned long offset; /* Physical address (0 for SAREA)*/ 286 unsigned long size; /* Physical size (bytes) */ 287 drm_map_type_t type; /* Type of memory mapped */ 288 drm_map_flags_t flags; /* Flags */ 289 void *handle; /* User-space: "Handle" to pass to mmap */ 290 /* Kernel-space: kernel-virtual address */ 291 int mtrr; /* Boolean: MTRR used */ 292 /* Private data */ 293 bus_space_tag_t iot; 294 bus_space_handle_t ioh; 295} drm_local_map_t; 296 297typedef TAILQ_HEAD(drm_map_list, drm_map_list_entry) drm_map_list_t; 298typedef struct drm_map_list_entry { 299 TAILQ_ENTRY(drm_map_list_entry) link; 300 drm_local_map_t *map; 301} drm_map_list_entry_t; 302 303TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig); 304typedef struct drm_vbl_sig { 305 TAILQ_ENTRY(drm_vbl_sig) link; 306 unsigned int sequence; 307 int signo; 308 int pid; 309} drm_vbl_sig_t; 310 311struct drm_device { 312#ifdef __NetBSD__ 313 struct device device; /* NetBSD's softc is an extension of struct device */ 314#endif 315 const char *name; /* Simple driver name */ 316 char *unique; /* Unique identifier: e.g., busid */ 317 int unique_len; /* Length of unique field */ 318#ifdef __FreeBSD__ 319 device_t device; /* Device instance from newbus */ 320#endif 321 dev_t devnode; /* Device number for mknod */ 322 int if_version; /* Highest interface version set */ 323 324 int flags; /* Flags to open(2) */ 325 326 /* Locks */ 327#if defined(__FreeBSD__) && __FreeBSD_version > 500000 328#if __HAVE_DMA 329 struct mtx dma_lock; /* protects dev->dma */ 330#endif 331#if __HAVE_IRQ 332 struct mtx irq_lock; /* protects irq condition checks */ 333#endif 334 struct mtx dev_lock; /* protects everything else */ 335#endif 336 /* Usage Counters */ 337 int open_count; /* Outstanding files open */ 338 int buf_use; /* Buffers in use -- cannot alloc */ 339 340 /* Performance counters */ 341 unsigned long counters; 342 drm_stat_type_t types[15]; 343 atomic_t counts[15]; 344 345 /* Authentication */ 346 drm_file_list_t files; 347 drm_magic_head_t magiclist[DRM_HASH_SIZE]; 348 349 /* Linked list of mappable regions. Protected by dev_lock */ 350 drm_map_list_t *maplist; 351 352 drm_local_map_t **context_sareas; 353 int max_context; 354 355 drm_lock_data_t lock; /* Information on hardware lock */ 356 357 /* DMA queues (contexts) */ 358 drm_device_dma_t *dma; /* Optional pointer for DMA support */ 359 360 /* Context support */ 361 int irq; /* Interrupt used by board */ 362 int irq_enabled; /* True if the irq handler is enabled */ 363#ifdef __FreeBSD__ 364 int irqrid; /* Interrupt used by board */ 365 struct resource *irqr; /* Resource for interrupt used by board */ 366#elif defined(__NetBSD__) 367 struct pci_attach_args pa; 368 pci_intr_handle_t ih; 369#endif 370 void *irqh; /* Handle from bus_setup_intr */ 371 372 int pci_domain; 373 int pci_bus; 374 int pci_slot; 375 int pci_func; 376 377 atomic_t context_flag; /* Context swapping flag */ 378 int last_context; /* Last current context */ 379#if __FreeBSD_version >= 400005 380 struct task task; 381#endif 382#if __HAVE_VBL_IRQ 383 int vbl_queue; /* vbl wait channel */ 384 atomic_t vbl_received; 385#endif 386 387#ifdef __FreeBSD__ 388 struct sigio *buf_sigio; /* Processes waiting for SIGIO */ 389#elif defined(__NetBSD__) 390 pid_t buf_pgid; 391#endif 392 393 /* Sysctl support */ 394 struct drm_sysctl_info *sysctl; 395 396#if __REALLY_HAVE_AGP 397 drm_agp_head_t *agp; 398#endif 399 drm_sg_mem_t *sg; /* Scatter gather memory */ 400 atomic_t *ctx_bitmap; 401 void *dev_private; 402}; 403 404extern int DRM(flags); 405 406 /* Memory management support (drm_memory.h) */ 407extern void DRM(mem_init)(void); 408extern void DRM(mem_uninit)(void); 409extern void *DRM(alloc)(size_t size, int area); 410extern void *DRM(calloc)(size_t nmemb, size_t size, int area); 411extern void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size, 412 int area); 413extern void DRM(free)(void *pt, size_t size, int area); 414extern void *DRM(ioremap)(drm_device_t *dev, drm_local_map_t *map); 415extern void DRM(ioremapfree)(drm_local_map_t *map); 416extern int DRM(mtrr_add)(unsigned long offset, size_t size, int flags); 417extern int DRM(mtrr_del)(unsigned long offset, size_t size, int flags); 418 419#if __REALLY_HAVE_AGP 420extern agp_memory *DRM(alloc_agp)(int pages, u32 type); 421extern int DRM(free_agp)(agp_memory *handle, int pages); 422extern int DRM(bind_agp)(agp_memory *handle, unsigned int start); 423extern int DRM(unbind_agp)(agp_memory *handle); 424#endif 425 426extern int DRM(context_switch)(drm_device_t *dev, int old, int new); 427extern int DRM(context_switch_complete)(drm_device_t *dev, int new); 428 429#if __HAVE_CTX_BITMAP 430extern int DRM(ctxbitmap_init)( drm_device_t *dev ); 431extern void DRM(ctxbitmap_cleanup)( drm_device_t *dev ); 432extern void DRM(ctxbitmap_free)( drm_device_t *dev, int ctx_handle ); 433extern int DRM(ctxbitmap_next)( drm_device_t *dev ); 434#endif 435 436 /* Locking IOCTL support (drm_lock.h) */ 437extern int DRM(lock_take)(__volatile__ unsigned int *lock, 438 unsigned int context); 439extern int DRM(lock_transfer)(drm_device_t *dev, 440 __volatile__ unsigned int *lock, 441 unsigned int context); 442extern int DRM(lock_free)(drm_device_t *dev, 443 __volatile__ unsigned int *lock, 444 unsigned int context); 445 446 /* Buffer management support (drm_bufs.h) */ 447extern int DRM(order)( unsigned long size ); 448 449#if __HAVE_DMA 450 /* DMA support (drm_dma.h) */ 451extern int DRM(dma_setup)(drm_device_t *dev); 452extern void DRM(dma_takedown)(drm_device_t *dev); 453extern void DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf); 454extern void DRM(reclaim_buffers)(drm_device_t *dev, DRMFILE filp); 455#endif 456 457#if __HAVE_IRQ 458 /* IRQ support (drm_irq.h) */ 459extern int DRM(irq_install)(drm_device_t *dev); 460extern int DRM(irq_uninstall)( drm_device_t *dev ); 461extern irqreturn_t DRM(irq_handler)( DRM_IRQ_ARGS ); 462extern void DRM(driver_irq_preinstall)( drm_device_t *dev ); 463extern void DRM(driver_irq_postinstall)( drm_device_t *dev ); 464extern void DRM(driver_irq_uninstall)( drm_device_t *dev ); 465#if __HAVE_IRQ_BH 466extern void DRM(irq_immediate_bh)( DRM_TASKQUEUE_ARGS ); 467#endif 468#endif 469 470#if __HAVE_VBL_IRQ 471extern int DRM(vblank_wait)(drm_device_t *dev, unsigned int *vbl_seq); 472extern void DRM(vbl_send_signals)( drm_device_t *dev ); 473#endif 474 475#if __REALLY_HAVE_AGP 476 /* AGP/GART support (drm_agpsupport.h) */ 477extern drm_agp_head_t *DRM(agp_init)(void); 478extern void DRM(agp_uninit)(void); 479extern void DRM(agp_do_release)(void); 480extern agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type); 481extern int DRM(agp_free_memory)(agp_memory *handle); 482extern int DRM(agp_bind_memory)(agp_memory *handle, off_t start); 483extern int DRM(agp_unbind_memory)(agp_memory *handle); 484#endif 485 486#if __HAVE_SG 487 /* Scatter Gather Support (drm_scatter.h) */ 488extern void DRM(sg_cleanup)(drm_sg_mem_t *entry); 489#endif 490 491#if __REALLY_HAVE_SG 492 /* ATI PCIGART support (ati_pcigart.h) */ 493extern int DRM(ati_pcigart_init)(drm_device_t *dev, 494 unsigned long *addr, 495 dma_addr_t *bus_addr); 496extern int DRM(ati_pcigart_cleanup)(drm_device_t *dev, 497 unsigned long addr, 498 dma_addr_t bus_addr); 499#endif 500 501/* Locking IOCTL support (drm_drv.h) */ 502extern int DRM(lock)(DRM_IOCTL_ARGS); 503extern int DRM(unlock)(DRM_IOCTL_ARGS); 504extern int DRM(version)( DRM_IOCTL_ARGS ); 505extern int DRM(setversion)( DRM_IOCTL_ARGS ); 506 507/* Misc. IOCTL support (drm_ioctl.h) */ 508extern int DRM(irq_by_busid)(DRM_IOCTL_ARGS); 509extern int DRM(getunique)(DRM_IOCTL_ARGS); 510extern int DRM(setunique)(DRM_IOCTL_ARGS); 511extern int DRM(getmap)(DRM_IOCTL_ARGS); 512extern int DRM(getclient)(DRM_IOCTL_ARGS); 513extern int DRM(getstats)(DRM_IOCTL_ARGS); 514extern int DRM(noop)(DRM_IOCTL_ARGS); 515 516/* Context IOCTL support (drm_context.h) */ 517extern int DRM(resctx)(DRM_IOCTL_ARGS); 518extern int DRM(addctx)(DRM_IOCTL_ARGS); 519extern int DRM(modctx)(DRM_IOCTL_ARGS); 520extern int DRM(getctx)(DRM_IOCTL_ARGS); 521extern int DRM(switchctx)(DRM_IOCTL_ARGS); 522extern int DRM(newctx)(DRM_IOCTL_ARGS); 523extern int DRM(rmctx)(DRM_IOCTL_ARGS); 524extern int DRM(setsareactx)(DRM_IOCTL_ARGS); 525extern int DRM(getsareactx)(DRM_IOCTL_ARGS); 526 527/* Drawable IOCTL support (drm_drawable.h) */ 528extern int DRM(adddraw)(DRM_IOCTL_ARGS); 529extern int DRM(rmdraw)(DRM_IOCTL_ARGS); 530 531/* Authentication IOCTL support (drm_auth.h) */ 532extern int DRM(getmagic)(DRM_IOCTL_ARGS); 533extern int DRM(authmagic)(DRM_IOCTL_ARGS); 534 535/* Buffer management support (drm_bufs.h) */ 536extern int DRM(addmap)(DRM_IOCTL_ARGS); 537extern int DRM(rmmap)(DRM_IOCTL_ARGS); 538#if __HAVE_DMA 539extern int DRM(addbufs)(DRM_IOCTL_ARGS); 540extern int DRM(infobufs)(DRM_IOCTL_ARGS); 541extern int DRM(markbufs)(DRM_IOCTL_ARGS); 542extern int DRM(freebufs)(DRM_IOCTL_ARGS); 543extern int DRM(mapbufs)(DRM_IOCTL_ARGS); 544#endif 545 546/* IRQ support (drm_irq.h) */ 547#if __HAVE_IRQ || __HAVE_DMA 548extern int DRM(control)(DRM_IOCTL_ARGS); 549#endif 550#if __HAVE_VBL_IRQ 551extern int DRM(wait_vblank)(DRM_IOCTL_ARGS); 552#endif 553 554/* AGP/GART support (drm_agpsupport.h) */ 555#if __REALLY_HAVE_AGP 556extern int DRM(agp_acquire)(DRM_IOCTL_ARGS); 557extern int DRM(agp_release)(DRM_IOCTL_ARGS); 558extern int DRM(agp_enable)(DRM_IOCTL_ARGS); 559extern int DRM(agp_info)(DRM_IOCTL_ARGS); 560extern int DRM(agp_alloc)(DRM_IOCTL_ARGS); 561extern int DRM(agp_free)(DRM_IOCTL_ARGS); 562extern int DRM(agp_unbind)(DRM_IOCTL_ARGS); 563extern int DRM(agp_bind)(DRM_IOCTL_ARGS); 564#endif 565 566/* Scatter Gather Support (drm_scatter.h) */ 567#if __HAVE_SG 568extern int DRM(sg_alloc)(DRM_IOCTL_ARGS); 569extern int DRM(sg_free)(DRM_IOCTL_ARGS); 570#endif 571 572/* consistent PCI memory functions (drm_pci.h) */ 573extern void *DRM(pci_alloc)(drm_device_t *dev, size_t size, 574 size_t align, dma_addr_t maxaddr, 575 dma_addr_t *busaddr); 576extern void DRM(pci_free)(drm_device_t *dev, size_t size, 577 void *vaddr, dma_addr_t busaddr); 578 579#endif /* __KERNEL__ */ 580#endif /* _DRM_P_H_ */ 581