Rev 4363 | Rev 6110 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4363 | Serge | 1 | /** |
| 2 | * \file xf86drm.h |
||
| 3 | * OS-independent header for DRM user-level library interface. |
||
| 4 | * |
||
| 5 | * \author Rickard E. (Rik) Faith |
||
| 6 | */ |
||
| 7 | |||
| 8 | /* |
||
| 9 | * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. |
||
| 10 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. |
||
| 11 | * All Rights Reserved. |
||
| 12 | * |
||
| 13 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
| 14 | * copy of this software and associated documentation files (the "Software"), |
||
| 15 | * to deal in the Software without restriction, including without limitation |
||
| 16 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
||
| 17 | * and/or sell copies of the Software, and to permit persons to whom the |
||
| 18 | * Software is furnished to do so, subject to the following conditions: |
||
| 19 | * |
||
| 20 | * The above copyright notice and this permission notice (including the next |
||
| 21 | * paragraph) shall be included in all copies or substantial portions of the |
||
| 22 | * Software. |
||
| 23 | * |
||
| 24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||
| 25 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||
| 26 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
||
| 27 | * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
||
| 28 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
||
| 29 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
||
| 30 | * DEALINGS IN THE SOFTWARE. |
||
| 31 | * |
||
| 32 | */ |
||
| 33 | |||
| 34 | #ifndef _XF86DRM_H_ |
||
| 35 | #define _XF86DRM_H_ |
||
| 36 | |||
| 37 | #include |
||
| 38 | #include |
||
| 39 | #include |
||
| 40 | #include |
||
| 41 | |||
| 42 | #if defined(__cplusplus) || defined(c_plusplus) |
||
| 43 | extern "C" { |
||
| 44 | #endif |
||
| 45 | |||
| 46 | #ifndef DRM_MAX_MINOR |
||
| 47 | #define DRM_MAX_MINOR 16 |
||
| 48 | #endif |
||
| 49 | |||
| 50 | #define DRM_IOCTL_NR(n) _IOC_NR(n) |
||
| 51 | #define DRM_IOC_VOID _IOC_NONE |
||
| 52 | #define DRM_IOC_READ _IOC_READ |
||
| 53 | #define DRM_IOC_WRITE _IOC_WRITE |
||
| 54 | #define DRM_IOC_READWRITE _IOC_READ|_IOC_WRITE |
||
| 55 | #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) |
||
| 56 | |||
| 57 | |||
| 58 | /* Defaults, if nothing set in xf86config */ |
||
| 59 | #define DRM_DEV_UID 0 |
||
| 60 | #define DRM_DEV_GID 0 |
||
| 61 | /* Default /dev/dri directory permissions 0755 */ |
||
| 62 | #define DRM_DEV_DIRMODE \ |
||
| 63 | (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) |
||
| 64 | #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) |
||
| 65 | |||
| 66 | #define DRM_DIR_NAME "/dev/dri" |
||
| 67 | #define DRM_DEV_NAME "%s/card%d" |
||
| 68 | #define DRM_CONTROL_DEV_NAME "%s/controlD%d" |
||
| 69 | #define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */ |
||
| 70 | |||
| 71 | #define DRM_ERR_NO_DEVICE (-1001) |
||
| 72 | #define DRM_ERR_NO_ACCESS (-1002) |
||
| 73 | #define DRM_ERR_NOT_ROOT (-1003) |
||
| 74 | #define DRM_ERR_INVALID (-1004) |
||
| 75 | #define DRM_ERR_NO_FD (-1005) |
||
| 76 | |||
| 77 | #define DRM_AGP_NO_HANDLE 0 |
||
| 78 | |||
| 79 | typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */ |
||
| 80 | typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */ |
||
| 81 | |||
| 5068 | serge | 82 | #if (__GNUC__ >= 3) |
| 83 | #define DRM_PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a))) |
||
| 84 | #else |
||
| 85 | #define DRM_PRINTFLIKE(f, a) |
||
| 86 | #endif |
||
| 87 | |||
| 4363 | Serge | 88 | typedef struct _drmServerInfo { |
| 5068 | serge | 89 | int (*debug_print)(const char *format, va_list ap) DRM_PRINTFLIKE(1,0); |
| 4363 | Serge | 90 | int (*load_module)(const char *name); |
| 91 | } drmServerInfo, *drmServerInfoPtr; |
||
| 92 | |||
| 93 | typedef struct drmHashEntry { |
||
| 94 | int fd; |
||
| 95 | void (*f)(int, void *, void *); |
||
| 96 | void *tagTable; |
||
| 97 | } drmHashEntry; |
||
| 98 | |||
| 99 | extern int drmIoctl(int fd, unsigned long request, void *arg); |
||
| 100 | extern void *drmGetHashTable(void); |
||
| 101 | extern drmHashEntry *drmGetEntry(int fd); |
||
| 102 | |||
| 103 | /** |
||
| 104 | * Driver version information. |
||
| 105 | * |
||
| 106 | * \sa drmGetVersion() and drmSetVersion(). |
||
| 107 | */ |
||
| 108 | typedef struct _drmVersion { |
||
| 109 | int version_major; /**< Major version */ |
||
| 110 | int version_minor; /**< Minor version */ |
||
| 111 | int version_patchlevel; /**< Patch level */ |
||
| 112 | int name_len; /**< Length of name buffer */ |
||
| 113 | char *name; /**< Name of driver */ |
||
| 114 | int date_len; /**< Length of date buffer */ |
||
| 115 | char *date; /**< User-space buffer to hold date */ |
||
| 116 | int desc_len; /**< Length of desc buffer */ |
||
| 117 | char *desc; /**< User-space buffer to hold desc */ |
||
| 118 | } drmVersion, *drmVersionPtr; |
||
| 119 | |||
| 120 | typedef struct _drmStats { |
||
| 121 | unsigned long count; /**< Number of data */ |
||
| 122 | struct { |
||
| 123 | unsigned long value; /**< Value from kernel */ |
||
| 124 | const char *long_format; /**< Suggested format for long_name */ |
||
| 125 | const char *long_name; /**< Long name for value */ |
||
| 126 | const char *rate_format; /**< Suggested format for rate_name */ |
||
| 127 | const char *rate_name; /**< Short name for value per second */ |
||
| 128 | int isvalue; /**< True if value (vs. counter) */ |
||
| 129 | const char *mult_names; /**< Multiplier names (e.g., "KGM") */ |
||
| 130 | int mult; /**< Multiplier value (e.g., 1024) */ |
||
| 131 | int verbose; /**< Suggest only in verbose output */ |
||
| 132 | } data[15]; |
||
| 133 | } drmStatsT; |
||
| 134 | |||
| 135 | |||
| 136 | /* All of these enums *MUST* match with the |
||
| 137 | kernel implementation -- so do *NOT* |
||
| 138 | change them! (The drmlib implementation |
||
| 139 | will just copy the flags instead of |
||
| 140 | translating them.) */ |
||
| 141 | typedef enum { |
||
| 142 | DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */ |
||
| 143 | DRM_REGISTERS = 1, /**< no caching, no core dump */ |
||
| 144 | DRM_SHM = 2, /**< shared, cached */ |
||
| 145 | DRM_AGP = 3, /**< AGP/GART */ |
||
| 146 | DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */ |
||
| 147 | DRM_CONSISTENT = 5 /**< PCI consistent */ |
||
| 148 | } drmMapType; |
||
| 149 | |||
| 150 | typedef enum { |
||
| 151 | DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */ |
||
| 152 | DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */ |
||
| 153 | DRM_LOCKED = 0x0004, /**< Physical pages locked */ |
||
| 154 | DRM_KERNEL = 0x0008, /**< Kernel requires access */ |
||
| 155 | DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */ |
||
| 156 | DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */ |
||
| 157 | DRM_REMOVABLE = 0x0040 /**< Removable mapping */ |
||
| 158 | } drmMapFlags; |
||
| 159 | |||
| 160 | /** |
||
| 161 | * \warning These values *MUST* match drm.h |
||
| 162 | */ |
||
| 163 | typedef enum { |
||
| 164 | /** \name Flags for DMA buffer dispatch */ |
||
| 165 | /*@{*/ |
||
| 166 | DRM_DMA_BLOCK = 0x01, /**< |
||
| 167 | * Block until buffer dispatched. |
||
| 168 | * |
||
| 169 | * \note the buffer may not yet have been |
||
| 170 | * processed by the hardware -- getting a |
||
| 171 | * hardware lock with the hardware quiescent |
||
| 172 | * will ensure that the buffer has been |
||
| 173 | * processed. |
||
| 174 | */ |
||
| 175 | DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */ |
||
| 176 | DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */ |
||
| 177 | /*@}*/ |
||
| 178 | |||
| 179 | /** \name Flags for DMA buffer request */ |
||
| 180 | /*@{*/ |
||
| 181 | DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */ |
||
| 182 | DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */ |
||
| 183 | DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */ |
||
| 184 | /*@}*/ |
||
| 185 | } drmDMAFlags; |
||
| 186 | |||
| 187 | typedef enum { |
||
| 188 | DRM_PAGE_ALIGN = 0x01, |
||
| 189 | DRM_AGP_BUFFER = 0x02, |
||
| 190 | DRM_SG_BUFFER = 0x04, |
||
| 191 | DRM_FB_BUFFER = 0x08, |
||
| 192 | DRM_PCI_BUFFER_RO = 0x10 |
||
| 193 | } drmBufDescFlags; |
||
| 194 | |||
| 195 | typedef enum { |
||
| 196 | DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */ |
||
| 197 | DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */ |
||
| 198 | DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */ |
||
| 199 | DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */ |
||
| 200 | /* These *HALT* flags aren't supported yet |
||
| 201 | -- they will be used to support the |
||
| 202 | full-screen DGA-like mode. */ |
||
| 203 | DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */ |
||
| 204 | DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */ |
||
| 205 | } drmLockFlags; |
||
| 206 | |||
| 207 | typedef enum { |
||
| 208 | DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and |
||
| 209 | never swapped. */ |
||
| 210 | DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */ |
||
| 211 | } drm_context_tFlags, *drm_context_tFlagsPtr; |
||
| 212 | |||
| 213 | typedef struct _drmBufDesc { |
||
| 214 | int count; /**< Number of buffers of this size */ |
||
| 215 | int size; /**< Size in bytes */ |
||
| 216 | int low_mark; /**< Low water mark */ |
||
| 217 | int high_mark; /**< High water mark */ |
||
| 218 | } drmBufDesc, *drmBufDescPtr; |
||
| 219 | |||
| 220 | typedef struct _drmBufInfo { |
||
| 221 | int count; /**< Number of buffers described in list */ |
||
| 222 | drmBufDescPtr list; /**< List of buffer descriptions */ |
||
| 223 | } drmBufInfo, *drmBufInfoPtr; |
||
| 224 | |||
| 225 | typedef struct _drmBuf { |
||
| 226 | int idx; /**< Index into the master buffer list */ |
||
| 227 | int total; /**< Buffer size */ |
||
| 228 | int used; /**< Amount of buffer in use (for DMA) */ |
||
| 229 | drmAddress address; /**< Address */ |
||
| 230 | } drmBuf, *drmBufPtr; |
||
| 231 | |||
| 232 | /** |
||
| 233 | * Buffer mapping information. |
||
| 234 | * |
||
| 235 | * Used by drmMapBufs() and drmUnmapBufs() to store information about the |
||
| 236 | * mapped buffers. |
||
| 237 | */ |
||
| 238 | typedef struct _drmBufMap { |
||
| 239 | int count; /**< Number of buffers mapped */ |
||
| 240 | drmBufPtr list; /**< Buffers */ |
||
| 241 | } drmBufMap, *drmBufMapPtr; |
||
| 242 | |||
| 243 | typedef struct _drmLock { |
||
| 244 | volatile unsigned int lock; |
||
| 245 | char padding[60]; |
||
| 246 | /* This is big enough for most current (and future?) architectures: |
||
| 247 | DEC Alpha: 32 bytes |
||
| 248 | Intel Merced: ? |
||
| 249 | Intel P5/PPro/PII/PIII: 32 bytes |
||
| 250 | Intel StrongARM: 32 bytes |
||
| 251 | Intel i386/i486: 16 bytes |
||
| 252 | MIPS: 32 bytes (?) |
||
| 253 | Motorola 68k: 16 bytes |
||
| 254 | Motorola PowerPC: 32 bytes |
||
| 255 | Sun SPARC: 32 bytes |
||
| 256 | */ |
||
| 257 | } drmLock, *drmLockPtr; |
||
| 258 | |||
| 259 | /** |
||
| 260 | * Indices here refer to the offset into |
||
| 261 | * list in drmBufInfo |
||
| 262 | */ |
||
| 263 | typedef struct _drmDMAReq { |
||
| 264 | drm_context_t context; /**< Context handle */ |
||
| 265 | int send_count; /**< Number of buffers to send */ |
||
| 266 | int *send_list; /**< List of handles to buffers */ |
||
| 267 | int *send_sizes; /**< Lengths of data to send, in bytes */ |
||
| 268 | drmDMAFlags flags; /**< Flags */ |
||
| 269 | int request_count; /**< Number of buffers requested */ |
||
| 270 | int request_size; /**< Desired size of buffers requested */ |
||
| 271 | int *request_list; /**< Buffer information */ |
||
| 272 | int *request_sizes; /**< Minimum acceptable sizes */ |
||
| 273 | int granted_count; /**< Number of buffers granted at this size */ |
||
| 274 | } drmDMAReq, *drmDMAReqPtr; |
||
| 275 | |||
| 276 | typedef struct _drmRegion { |
||
| 277 | drm_handle_t handle; |
||
| 278 | unsigned int offset; |
||
| 279 | drmSize size; |
||
| 280 | drmAddress map; |
||
| 281 | } drmRegion, *drmRegionPtr; |
||
| 282 | |||
| 283 | typedef struct _drmTextureRegion { |
||
| 284 | unsigned char next; |
||
| 285 | unsigned char prev; |
||
| 286 | unsigned char in_use; |
||
| 287 | unsigned char padding; /**< Explicitly pad this out */ |
||
| 288 | unsigned int age; |
||
| 289 | } drmTextureRegion, *drmTextureRegionPtr; |
||
| 290 | |||
| 291 | |||
| 292 | typedef enum { |
||
| 293 | DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ |
||
| 294 | DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ |
||
| 295 | /* bits 1-6 are reserved for high crtcs */ |
||
| 296 | DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e, |
||
| 297 | DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */ |
||
| 298 | DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ |
||
| 299 | DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ |
||
| 300 | DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ |
||
| 301 | DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */ |
||
| 302 | } drmVBlankSeqType; |
||
| 303 | #define DRM_VBLANK_HIGH_CRTC_SHIFT 1 |
||
| 304 | |||
| 305 | typedef struct _drmVBlankReq { |
||
| 306 | drmVBlankSeqType type; |
||
| 307 | unsigned int sequence; |
||
| 308 | unsigned long signal; |
||
| 309 | } drmVBlankReq, *drmVBlankReqPtr; |
||
| 310 | |||
| 311 | typedef struct _drmVBlankReply { |
||
| 312 | drmVBlankSeqType type; |
||
| 313 | unsigned int sequence; |
||
| 314 | long tval_sec; |
||
| 315 | long tval_usec; |
||
| 316 | } drmVBlankReply, *drmVBlankReplyPtr; |
||
| 317 | |||
| 318 | typedef union _drmVBlank { |
||
| 319 | drmVBlankReq request; |
||
| 320 | drmVBlankReply reply; |
||
| 321 | } drmVBlank, *drmVBlankPtr; |
||
| 322 | |||
| 323 | typedef struct _drmSetVersion { |
||
| 324 | int drm_di_major; |
||
| 325 | int drm_di_minor; |
||
| 326 | int drm_dd_major; |
||
| 327 | int drm_dd_minor; |
||
| 328 | } drmSetVersion, *drmSetVersionPtr; |
||
| 329 | |||
| 330 | #define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock) |
||
| 331 | |||
| 332 | #define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */ |
||
| 333 | #define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */ |
||
| 334 | |||
| 335 | #if defined(__GNUC__) && (__GNUC__ >= 2) |
||
| 336 | # if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__) |
||
| 337 | /* Reflect changes here to drmP.h */ |
||
| 338 | #define DRM_CAS(lock,old,new,__ret) \ |
||
| 339 | do { \ |
||
| 340 | int __dummy; /* Can't mark eax as clobbered */ \ |
||
| 341 | __asm__ __volatile__( \ |
||
| 342 | "lock ; cmpxchg %4,%1\n\t" \ |
||
| 343 | "setnz %0" \ |
||
| 344 | : "=d" (__ret), \ |
||
| 345 | "=m" (__drm_dummy_lock(lock)), \ |
||
| 346 | "=a" (__dummy) \ |
||
| 347 | : "2" (old), \ |
||
| 348 | "r" (new)); \ |
||
| 349 | } while (0) |
||
| 350 | |||
| 351 | #elif defined(__alpha__) |
||
| 352 | |||
| 353 | #define DRM_CAS(lock, old, new, ret) \ |
||
| 354 | do { \ |
||
| 355 | int tmp, old32; \ |
||
| 356 | __asm__ __volatile__( \ |
||
| 357 | " addl $31, %5, %3\n" \ |
||
| 358 | "1: ldl_l %0, %2\n" \ |
||
| 359 | " cmpeq %0, %3, %1\n" \ |
||
| 360 | " beq %1, 2f\n" \ |
||
| 361 | " mov %4, %0\n" \ |
||
| 362 | " stl_c %0, %2\n" \ |
||
| 363 | " beq %0, 3f\n" \ |
||
| 364 | " mb\n" \ |
||
| 365 | "2: cmpeq %1, 0, %1\n" \ |
||
| 366 | ".subsection 2\n" \ |
||
| 367 | "3: br 1b\n" \ |
||
| 368 | ".previous" \ |
||
| 369 | : "=&r"(tmp), "=&r"(ret), \ |
||
| 370 | "=m"(__drm_dummy_lock(lock)), \ |
||
| 371 | "=&r"(old32) \ |
||
| 372 | : "r"(new), "r"(old) \ |
||
| 373 | : "memory"); \ |
||
| 374 | } while (0) |
||
| 375 | |||
| 376 | #elif defined(__sparc__) |
||
| 377 | |||
| 378 | #define DRM_CAS(lock,old,new,__ret) \ |
||
| 379 | do { register unsigned int __old __asm("o0"); \ |
||
| 380 | register unsigned int __new __asm("o1"); \ |
||
| 381 | register volatile unsigned int *__lock __asm("o2"); \ |
||
| 382 | __old = old; \ |
||
| 383 | __new = new; \ |
||
| 384 | __lock = (volatile unsigned int *)lock; \ |
||
| 385 | __asm__ __volatile__( \ |
||
| 386 | /*"cas [%2], %3, %0"*/ \ |
||
| 387 | ".word 0xd3e29008\n\t" \ |
||
| 388 | /*"membar #StoreStore | #StoreLoad"*/ \ |
||
| 389 | ".word 0x8143e00a" \ |
||
| 390 | : "=&r" (__new) \ |
||
| 391 | : "0" (__new), \ |
||
| 392 | "r" (__lock), \ |
||
| 393 | "r" (__old) \ |
||
| 394 | : "memory"); \ |
||
| 395 | __ret = (__new != __old); \ |
||
| 396 | } while(0) |
||
| 397 | |||
| 398 | #elif defined(__ia64__) |
||
| 399 | |||
| 400 | #ifdef __INTEL_COMPILER |
||
| 401 | /* this currently generates bad code (missing stop bits)... */ |
||
| 402 | #include |
||
| 403 | |||
| 404 | #define DRM_CAS(lock,old,new,__ret) \ |
||
| 405 | do { \ |
||
| 406 | unsigned long __result, __old = (old) & 0xffffffff; \ |
||
| 407 | __mf(); \ |
||
| 408 | __result = _InterlockedCompareExchange_acq(&__drm_dummy_lock(lock), (new), __old);\ |
||
| 409 | __ret = (__result) != (__old); \ |
||
| 410 | /* __ret = (__sync_val_compare_and_swap(&__drm_dummy_lock(lock), \ |
||
| 411 | (old), (new)) \ |
||
| 412 | != (old)); */\ |
||
| 413 | } while (0) |
||
| 414 | |||
| 415 | #else |
||
| 416 | #define DRM_CAS(lock,old,new,__ret) \ |
||
| 417 | do { \ |
||
| 418 | unsigned int __result, __old = (old); \ |
||
| 419 | __asm__ __volatile__( \ |
||
| 420 | "mf\n" \ |
||
| 421 | "mov ar.ccv=%2\n" \ |
||
| 422 | ";;\n" \ |
||
| 423 | "cmpxchg4.acq %0=%1,%3,ar.ccv" \ |
||
| 424 | : "=r" (__result), "=m" (__drm_dummy_lock(lock)) \ |
||
| 425 | : "r" ((unsigned long)__old), "r" (new) \ |
||
| 426 | : "memory"); \ |
||
| 427 | __ret = (__result) != (__old); \ |
||
| 428 | } while (0) |
||
| 429 | |||
| 430 | #endif |
||
| 431 | |||
| 432 | #elif defined(__powerpc__) |
||
| 433 | |||
| 434 | #define DRM_CAS(lock,old,new,__ret) \ |
||
| 435 | do { \ |
||
| 436 | __asm__ __volatile__( \ |
||
| 437 | "sync;" \ |
||
| 438 | "0: lwarx %0,0,%1;" \ |
||
| 439 | " xor. %0,%3,%0;" \ |
||
| 440 | " bne 1f;" \ |
||
| 441 | " stwcx. %2,0,%1;" \ |
||
| 442 | " bne- 0b;" \ |
||
| 443 | "1: " \ |
||
| 444 | "sync;" \ |
||
| 445 | : "=&r"(__ret) \ |
||
| 446 | : "r"(lock), "r"(new), "r"(old) \ |
||
| 447 | : "cr0", "memory"); \ |
||
| 448 | } while (0) |
||
| 449 | |||
| 450 | #endif /* architecture */ |
||
| 451 | #endif /* __GNUC__ >= 2 */ |
||
| 452 | |||
| 453 | #ifndef DRM_CAS |
||
| 454 | #define DRM_CAS(lock,old,new,ret) do { ret=1; } while (0) /* FAST LOCK FAILS */ |
||
| 455 | #endif |
||
| 456 | |||
| 457 | #if defined(__alpha__) |
||
| 458 | #define DRM_CAS_RESULT(_result) long _result |
||
| 459 | #elif defined(__powerpc__) |
||
| 460 | #define DRM_CAS_RESULT(_result) int _result |
||
| 461 | #else |
||
| 462 | #define DRM_CAS_RESULT(_result) char _result |
||
| 463 | #endif |
||
| 464 | |||
| 465 | #define DRM_LIGHT_LOCK(fd,lock,context) \ |
||
| 466 | do { \ |
||
| 467 | DRM_CAS_RESULT(__ret); \ |
||
| 468 | DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ |
||
| 469 | if (__ret) drmGetLock(fd,context,0); \ |
||
| 470 | } while(0) |
||
| 471 | |||
| 472 | /* This one counts fast locks -- for |
||
| 473 | benchmarking only. */ |
||
| 474 | #define DRM_LIGHT_LOCK_COUNT(fd,lock,context,count) \ |
||
| 475 | do { \ |
||
| 476 | DRM_CAS_RESULT(__ret); \ |
||
| 477 | DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ |
||
| 478 | if (__ret) drmGetLock(fd,context,0); \ |
||
| 479 | else ++count; \ |
||
| 480 | } while(0) |
||
| 481 | |||
| 482 | #define DRM_LOCK(fd,lock,context,flags) \ |
||
| 483 | do { \ |
||
| 484 | if (flags) drmGetLock(fd,context,flags); \ |
||
| 485 | else DRM_LIGHT_LOCK(fd,lock,context); \ |
||
| 486 | } while(0) |
||
| 487 | |||
| 488 | #define DRM_UNLOCK(fd,lock,context) \ |
||
| 489 | do { \ |
||
| 490 | DRM_CAS_RESULT(__ret); \ |
||
| 491 | DRM_CAS(lock,DRM_LOCK_HELD|context,context,__ret); \ |
||
| 492 | if (__ret) drmUnlock(fd,context); \ |
||
| 493 | } while(0) |
||
| 494 | |||
| 495 | /* Simple spin locks */ |
||
| 496 | #define DRM_SPINLOCK(spin,val) \ |
||
| 497 | do { \ |
||
| 498 | DRM_CAS_RESULT(__ret); \ |
||
| 499 | do { \ |
||
| 500 | DRM_CAS(spin,0,val,__ret); \ |
||
| 501 | if (__ret) while ((spin)->lock); \ |
||
| 502 | } while (__ret); \ |
||
| 503 | } while(0) |
||
| 504 | |||
| 505 | #define DRM_SPINLOCK_TAKE(spin,val) \ |
||
| 506 | do { \ |
||
| 507 | DRM_CAS_RESULT(__ret); \ |
||
| 508 | int cur; \ |
||
| 509 | do { \ |
||
| 510 | cur = (*spin).lock; \ |
||
| 511 | DRM_CAS(spin,cur,val,__ret); \ |
||
| 512 | } while (__ret); \ |
||
| 513 | } while(0) |
||
| 514 | |||
| 515 | #define DRM_SPINLOCK_COUNT(spin,val,count,__ret) \ |
||
| 516 | do { \ |
||
| 517 | int __i; \ |
||
| 518 | __ret = 1; \ |
||
| 519 | for (__i = 0; __ret && __i < count; __i++) { \ |
||
| 520 | DRM_CAS(spin,0,val,__ret); \ |
||
| 521 | if (__ret) for (;__i < count && (spin)->lock; __i++); \ |
||
| 522 | } \ |
||
| 523 | } while(0) |
||
| 524 | |||
| 525 | #define DRM_SPINUNLOCK(spin,val) \ |
||
| 526 | do { \ |
||
| 527 | DRM_CAS_RESULT(__ret); \ |
||
| 528 | if ((*spin).lock == val) { /* else server stole lock */ \ |
||
| 529 | do { \ |
||
| 530 | DRM_CAS(spin,val,0,__ret); \ |
||
| 531 | } while (__ret); \ |
||
| 532 | } \ |
||
| 533 | } while(0) |
||
| 534 | |||
| 535 | |||
| 536 | |||
| 537 | /* General user-level programmer's API: unprivileged */ |
||
| 538 | extern int drmAvailable(void); |
||
| 539 | extern int drmOpen(const char *name, const char *busid); |
||
| 540 | extern int drmOpenControl(int minor); |
||
| 541 | extern int drmClose(int fd); |
||
| 542 | extern drmVersionPtr drmGetVersion(int fd); |
||
| 543 | extern drmVersionPtr drmGetLibVersion(int fd); |
||
| 544 | extern int drmGetCap(int fd, uint64_t capability, uint64_t *value); |
||
| 545 | extern void drmFreeVersion(drmVersionPtr); |
||
| 546 | extern int drmGetMagic(int fd, drm_magic_t * magic); |
||
| 547 | extern char *drmGetBusid(int fd); |
||
| 548 | extern int drmGetInterruptFromBusID(int fd, int busnum, int devnum, |
||
| 549 | int funcnum); |
||
| 550 | extern int drmGetMap(int fd, int idx, drm_handle_t *offset, |
||
| 551 | drmSize *size, drmMapType *type, |
||
| 552 | drmMapFlags *flags, drm_handle_t *handle, |
||
| 553 | int *mtrr); |
||
| 554 | extern int drmGetClient(int fd, int idx, int *auth, int *pid, |
||
| 555 | int *uid, unsigned long *magic, |
||
| 556 | unsigned long *iocs); |
||
| 557 | extern int drmGetStats(int fd, drmStatsT *stats); |
||
| 558 | extern int drmSetInterfaceVersion(int fd, drmSetVersion *version); |
||
| 559 | extern int drmCommandNone(int fd, unsigned long drmCommandIndex); |
||
| 560 | extern int drmCommandRead(int fd, unsigned long drmCommandIndex, |
||
| 561 | void *data, unsigned long size); |
||
| 562 | extern int drmCommandWrite(int fd, unsigned long drmCommandIndex, |
||
| 563 | void *data, unsigned long size); |
||
| 564 | extern int drmCommandWriteRead(int fd, unsigned long drmCommandIndex, |
||
| 565 | void *data, unsigned long size); |
||
| 566 | |||
| 567 | /* General user-level programmer's API: X server (root) only */ |
||
| 568 | extern void drmFreeBusid(const char *busid); |
||
| 569 | extern int drmSetBusid(int fd, const char *busid); |
||
| 570 | extern int drmAuthMagic(int fd, drm_magic_t magic); |
||
| 571 | extern int drmAddMap(int fd, |
||
| 572 | drm_handle_t offset, |
||
| 573 | drmSize size, |
||
| 574 | drmMapType type, |
||
| 575 | drmMapFlags flags, |
||
| 576 | drm_handle_t * handle); |
||
| 577 | extern int drmRmMap(int fd, drm_handle_t handle); |
||
| 578 | extern int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id, |
||
| 579 | drm_handle_t handle); |
||
| 580 | |||
| 581 | extern int drmAddBufs(int fd, int count, int size, |
||
| 582 | drmBufDescFlags flags, |
||
| 583 | int agp_offset); |
||
| 584 | extern int drmMarkBufs(int fd, double low, double high); |
||
| 585 | extern int drmCreateContext(int fd, drm_context_t * handle); |
||
| 586 | extern int drmSetContextFlags(int fd, drm_context_t context, |
||
| 587 | drm_context_tFlags flags); |
||
| 588 | extern int drmGetContextFlags(int fd, drm_context_t context, |
||
| 589 | drm_context_tFlagsPtr flags); |
||
| 590 | extern int drmAddContextTag(int fd, drm_context_t context, void *tag); |
||
| 591 | extern int drmDelContextTag(int fd, drm_context_t context); |
||
| 592 | extern void *drmGetContextTag(int fd, drm_context_t context); |
||
| 593 | extern drm_context_t * drmGetReservedContextList(int fd, int *count); |
||
| 594 | extern void drmFreeReservedContextList(drm_context_t *); |
||
| 595 | extern int drmSwitchToContext(int fd, drm_context_t context); |
||
| 596 | extern int drmDestroyContext(int fd, drm_context_t handle); |
||
| 597 | extern int drmCreateDrawable(int fd, drm_drawable_t * handle); |
||
| 598 | extern int drmDestroyDrawable(int fd, drm_drawable_t handle); |
||
| 599 | extern int drmUpdateDrawableInfo(int fd, drm_drawable_t handle, |
||
| 600 | drm_drawable_info_type_t type, |
||
| 601 | unsigned int num, void *data); |
||
| 602 | extern int drmCtlInstHandler(int fd, int irq); |
||
| 603 | extern int drmCtlUninstHandler(int fd); |
||
| 604 | extern int drmSetClientCap(int fd, uint64_t capability, |
||
| 605 | uint64_t value); |
||
| 606 | |||
| 607 | /* General user-level programmer's API: authenticated client and/or X */ |
||
| 608 | extern int drmMap(int fd, |
||
| 609 | drm_handle_t handle, |
||
| 610 | drmSize size, |
||
| 611 | drmAddressPtr address); |
||
| 612 | extern int drmUnmap(drmAddress address, drmSize size); |
||
| 613 | extern drmBufInfoPtr drmGetBufInfo(int fd); |
||
| 614 | extern drmBufMapPtr drmMapBufs(int fd); |
||
| 615 | extern int drmUnmapBufs(drmBufMapPtr bufs); |
||
| 616 | extern int drmDMA(int fd, drmDMAReqPtr request); |
||
| 617 | extern int drmFreeBufs(int fd, int count, int *list); |
||
| 618 | extern int drmGetLock(int fd, |
||
| 619 | drm_context_t context, |
||
| 620 | drmLockFlags flags); |
||
| 621 | extern int drmUnlock(int fd, drm_context_t context); |
||
| 622 | extern int drmFinish(int fd, int context, drmLockFlags flags); |
||
| 623 | extern int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id, |
||
| 624 | drm_handle_t * handle); |
||
| 625 | |||
| 626 | /* AGP/GART support: X server (root) only */ |
||
| 627 | extern int drmAgpAcquire(int fd); |
||
| 628 | extern int drmAgpRelease(int fd); |
||
| 629 | extern int drmAgpEnable(int fd, unsigned long mode); |
||
| 630 | extern int drmAgpAlloc(int fd, unsigned long size, |
||
| 631 | unsigned long type, unsigned long *address, |
||
| 632 | drm_handle_t *handle); |
||
| 633 | extern int drmAgpFree(int fd, drm_handle_t handle); |
||
| 634 | extern int drmAgpBind(int fd, drm_handle_t handle, |
||
| 635 | unsigned long offset); |
||
| 636 | extern int drmAgpUnbind(int fd, drm_handle_t handle); |
||
| 637 | |||
| 638 | /* AGP/GART info: authenticated client and/or X */ |
||
| 639 | extern int drmAgpVersionMajor(int fd); |
||
| 640 | extern int drmAgpVersionMinor(int fd); |
||
| 641 | extern unsigned long drmAgpGetMode(int fd); |
||
| 642 | extern unsigned long drmAgpBase(int fd); /* Physical location */ |
||
| 643 | extern unsigned long drmAgpSize(int fd); /* Bytes */ |
||
| 644 | extern unsigned long drmAgpMemoryUsed(int fd); |
||
| 645 | extern unsigned long drmAgpMemoryAvail(int fd); |
||
| 646 | extern unsigned int drmAgpVendorId(int fd); |
||
| 647 | extern unsigned int drmAgpDeviceId(int fd); |
||
| 648 | |||
| 649 | /* PCI scatter/gather support: X server (root) only */ |
||
| 650 | extern int drmScatterGatherAlloc(int fd, unsigned long size, |
||
| 651 | drm_handle_t *handle); |
||
| 652 | extern int drmScatterGatherFree(int fd, drm_handle_t handle); |
||
| 653 | |||
| 654 | extern int drmWaitVBlank(int fd, drmVBlankPtr vbl); |
||
| 655 | |||
| 656 | /* Support routines */ |
||
| 657 | extern void drmSetServerInfo(drmServerInfoPtr info); |
||
| 658 | extern int drmError(int err, const char *label); |
||
| 659 | extern void *drmMalloc(int size); |
||
| 660 | extern void drmFree(void *pt); |
||
| 661 | |||
| 662 | /* Hash table routines */ |
||
| 663 | extern void *drmHashCreate(void); |
||
| 664 | extern int drmHashDestroy(void *t); |
||
| 665 | extern int drmHashLookup(void *t, unsigned long key, void **value); |
||
| 666 | extern int drmHashInsert(void *t, unsigned long key, void *value); |
||
| 667 | extern int drmHashDelete(void *t, unsigned long key); |
||
| 668 | extern int drmHashFirst(void *t, unsigned long *key, void **value); |
||
| 669 | extern int drmHashNext(void *t, unsigned long *key, void **value); |
||
| 670 | |||
| 671 | /* PRNG routines */ |
||
| 672 | extern void *drmRandomCreate(unsigned long seed); |
||
| 673 | extern int drmRandomDestroy(void *state); |
||
| 674 | extern unsigned long drmRandom(void *state); |
||
| 675 | extern double drmRandomDouble(void *state); |
||
| 676 | |||
| 677 | /* Skip list routines */ |
||
| 678 | |||
| 679 | extern void *drmSLCreate(void); |
||
| 680 | extern int drmSLDestroy(void *l); |
||
| 681 | extern int drmSLLookup(void *l, unsigned long key, void **value); |
||
| 682 | extern int drmSLInsert(void *l, unsigned long key, void *value); |
||
| 683 | extern int drmSLDelete(void *l, unsigned long key); |
||
| 684 | extern int drmSLNext(void *l, unsigned long *key, void **value); |
||
| 685 | extern int drmSLFirst(void *l, unsigned long *key, void **value); |
||
| 686 | extern void drmSLDump(void *l); |
||
| 687 | extern int drmSLLookupNeighbors(void *l, unsigned long key, |
||
| 688 | unsigned long *prev_key, void **prev_value, |
||
| 689 | unsigned long *next_key, void **next_value); |
||
| 690 | |||
| 691 | extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened); |
||
| 692 | extern void drmCloseOnce(int fd); |
||
| 5068 | serge | 693 | extern void drmMsg(const char *format, ...) DRM_PRINTFLIKE(1, 2); |
| 4363 | Serge | 694 | |
| 695 | extern int drmSetMaster(int fd); |
||
| 696 | extern int drmDropMaster(int fd); |
||
| 697 | |||
| 698 | #define DRM_EVENT_CONTEXT_VERSION 2 |
||
| 699 | |||
| 700 | typedef struct _drmEventContext { |
||
| 701 | |||
| 702 | /* This struct is versioned so we can add more pointers if we |
||
| 703 | * add more events. */ |
||
| 704 | int version; |
||
| 705 | |||
| 706 | void (*vblank_handler)(int fd, |
||
| 707 | unsigned int sequence, |
||
| 708 | unsigned int tv_sec, |
||
| 709 | unsigned int tv_usec, |
||
| 710 | void *user_data); |
||
| 711 | |||
| 712 | void (*page_flip_handler)(int fd, |
||
| 713 | unsigned int sequence, |
||
| 714 | unsigned int tv_sec, |
||
| 715 | unsigned int tv_usec, |
||
| 716 | void *user_data); |
||
| 717 | |||
| 718 | } drmEventContext, *drmEventContextPtr; |
||
| 719 | |||
| 720 | extern int drmHandleEvent(int fd, drmEventContextPtr evctx); |
||
| 721 | |||
| 722 | extern char *drmGetDeviceNameFromFd(int fd); |
||
| 723 | |||
| 724 | extern int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int *prime_fd); |
||
| 725 | extern int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t *handle); |
||
| 726 | |||
| 727 | #if defined(__cplusplus) || defined(c_plusplus) |
||
| 728 | } |
||
| 729 | #endif |
||
| 730 | |||
| 731 | #endif |