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annotate src/fftw-3.3.5/kernel/cycle.h @ 84:08ae793730bd

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Add null config files
author Chris Cannam
date Mon, 02 Mar 2020 14:03:47 +0000
parents 2cd0e3b3e1fd
children
rev   line source
Chris@42 1 /*
Chris@42 2 * Copyright (c) 2003, 2007-14 Matteo Frigo
Chris@42 3 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
Chris@42 4 *
Chris@42 5 * Permission is hereby granted, free of charge, to any person obtaining
Chris@42 6 * a copy of this software and associated documentation files (the
Chris@42 7 * "Software"), to deal in the Software without restriction, including
Chris@42 8 * without limitation the rights to use, copy, modify, merge, publish,
Chris@42 9 * distribute, sublicense, and/or sell copies of the Software, and to
Chris@42 10 * permit persons to whom the Software is furnished to do so, subject to
Chris@42 11 * the following conditions:
Chris@42 12 *
Chris@42 13 * The above copyright notice and this permission notice shall be
Chris@42 14 * included in all copies or substantial portions of the Software.
Chris@42 15 *
Chris@42 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
Chris@42 17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Chris@42 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Chris@42 19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
Chris@42 20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
Chris@42 21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
Chris@42 22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Chris@42 23 *
Chris@42 24 */
Chris@42 25
Chris@42 26
Chris@42 27 /* machine-dependent cycle counters code. Needs to be inlined. */
Chris@42 28
Chris@42 29 /***************************************************************************/
Chris@42 30 /* To use the cycle counters in your code, simply #include "cycle.h" (this
Chris@42 31 file), and then use the functions/macros:
Chris@42 32
Chris@42 33 ticks getticks(void);
Chris@42 34
Chris@42 35 ticks is an opaque typedef defined below, representing the current time.
Chris@42 36 You extract the elapsed time between two calls to gettick() via:
Chris@42 37
Chris@42 38 double elapsed(ticks t1, ticks t0);
Chris@42 39
Chris@42 40 which returns a double-precision variable in arbitrary units. You
Chris@42 41 are not expected to convert this into human units like seconds; it
Chris@42 42 is intended only for *comparisons* of time intervals.
Chris@42 43
Chris@42 44 (In order to use some of the OS-dependent timer routines like
Chris@42 45 Solaris' gethrtime, you need to paste the autoconf snippet below
Chris@42 46 into your configure.ac file and #include "config.h" before cycle.h,
Chris@42 47 or define the relevant macros manually if you are not using autoconf.)
Chris@42 48 */
Chris@42 49
Chris@42 50 /***************************************************************************/
Chris@42 51 /* This file uses macros like HAVE_GETHRTIME that are assumed to be
Chris@42 52 defined according to whether the corresponding function/type/header
Chris@42 53 is available on your system. The necessary macros are most
Chris@42 54 conveniently defined if you are using GNU autoconf, via the tests:
Chris@42 55
Chris@42 56 dnl ---------------------------------------------------------------------
Chris@42 57
Chris@42 58 AC_C_INLINE
Chris@42 59 AC_HEADER_TIME
Chris@42 60 AC_CHECK_HEADERS([sys/time.h c_asm.h intrinsics.h mach/mach_time.h])
Chris@42 61
Chris@42 62 AC_CHECK_TYPE([hrtime_t],[AC_DEFINE(HAVE_HRTIME_T, 1, [Define to 1 if hrtime_t is defined in <sys/time.h>])],,[#if HAVE_SYS_TIME_H
Chris@42 63 #include <sys/time.h>
Chris@42 64 #endif])
Chris@42 65
Chris@42 66 AC_CHECK_FUNCS([gethrtime read_real_time time_base_to_time clock_gettime mach_absolute_time])
Chris@42 67
Chris@42 68 dnl Cray UNICOS _rtc() (real-time clock) intrinsic
Chris@42 69 AC_MSG_CHECKING([for _rtc intrinsic])
Chris@42 70 rtc_ok=yes
Chris@42 71 AC_TRY_LINK([#ifdef HAVE_INTRINSICS_H
Chris@42 72 #include <intrinsics.h>
Chris@42 73 #endif], [_rtc()], [AC_DEFINE(HAVE__RTC,1,[Define if you have the UNICOS _rtc() intrinsic.])], [rtc_ok=no])
Chris@42 74 AC_MSG_RESULT($rtc_ok)
Chris@42 75
Chris@42 76 dnl ---------------------------------------------------------------------
Chris@42 77 */
Chris@42 78
Chris@42 79 /***************************************************************************/
Chris@42 80
Chris@42 81 #if TIME_WITH_SYS_TIME
Chris@42 82 # include <sys/time.h>
Chris@42 83 # include <time.h>
Chris@42 84 #else
Chris@42 85 # if HAVE_SYS_TIME_H
Chris@42 86 # include <sys/time.h>
Chris@42 87 # else
Chris@42 88 # include <time.h>
Chris@42 89 # endif
Chris@42 90 #endif
Chris@42 91
Chris@42 92 #define INLINE_ELAPSED(INL) static INL double elapsed(ticks t1, ticks t0) \
Chris@42 93 { \
Chris@42 94 return (double)t1 - (double)t0; \
Chris@42 95 }
Chris@42 96
Chris@42 97 /*----------------------------------------------------------------*/
Chris@42 98 /* Solaris */
Chris@42 99 #if defined(HAVE_GETHRTIME) && defined(HAVE_HRTIME_T) && !defined(HAVE_TICK_COUNTER)
Chris@42 100 typedef hrtime_t ticks;
Chris@42 101
Chris@42 102 #define getticks gethrtime
Chris@42 103
Chris@42 104 INLINE_ELAPSED(inline)
Chris@42 105
Chris@42 106 #define HAVE_TICK_COUNTER
Chris@42 107 #endif
Chris@42 108
Chris@42 109 /*----------------------------------------------------------------*/
Chris@42 110 /* AIX v. 4+ routines to read the real-time clock or time-base register */
Chris@42 111 #if defined(HAVE_READ_REAL_TIME) && defined(HAVE_TIME_BASE_TO_TIME) && !defined(HAVE_TICK_COUNTER)
Chris@42 112 typedef timebasestruct_t ticks;
Chris@42 113
Chris@42 114 static __inline ticks getticks(void)
Chris@42 115 {
Chris@42 116 ticks t;
Chris@42 117 read_real_time(&t, TIMEBASE_SZ);
Chris@42 118 return t;
Chris@42 119 }
Chris@42 120
Chris@42 121 static __inline double elapsed(ticks t1, ticks t0) /* time in nanoseconds */
Chris@42 122 {
Chris@42 123 time_base_to_time(&t1, TIMEBASE_SZ);
Chris@42 124 time_base_to_time(&t0, TIMEBASE_SZ);
Chris@42 125 return (((double)t1.tb_high - (double)t0.tb_high) * 1.0e9 +
Chris@42 126 ((double)t1.tb_low - (double)t0.tb_low));
Chris@42 127 }
Chris@42 128
Chris@42 129 #define HAVE_TICK_COUNTER
Chris@42 130 #endif
Chris@42 131
Chris@42 132 /*----------------------------------------------------------------*/
Chris@42 133 /*
Chris@42 134 * PowerPC ``cycle'' counter using the time base register.
Chris@42 135 */
Chris@42 136 #if ((((defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))) || (defined(__MWERKS__) && defined(macintosh)))) || (defined(__IBM_GCC_ASM) && (defined(__powerpc__) || defined(__ppc__)))) && !defined(HAVE_TICK_COUNTER)
Chris@42 137 typedef unsigned long long ticks;
Chris@42 138
Chris@42 139 static __inline__ ticks getticks(void)
Chris@42 140 {
Chris@42 141 unsigned int tbl, tbu0, tbu1;
Chris@42 142
Chris@42 143 do {
Chris@42 144 __asm__ __volatile__ ("mftbu %0" : "=r"(tbu0));
Chris@42 145 __asm__ __volatile__ ("mftb %0" : "=r"(tbl));
Chris@42 146 __asm__ __volatile__ ("mftbu %0" : "=r"(tbu1));
Chris@42 147 } while (tbu0 != tbu1);
Chris@42 148
Chris@42 149 return (((unsigned long long)tbu0) << 32) | tbl;
Chris@42 150 }
Chris@42 151
Chris@42 152 INLINE_ELAPSED(__inline__)
Chris@42 153
Chris@42 154 #define HAVE_TICK_COUNTER
Chris@42 155 #endif
Chris@42 156
Chris@42 157 /* MacOS/Mach (Darwin) time-base register interface (unlike UpTime,
Chris@42 158 from Carbon, requires no additional libraries to be linked). */
Chris@42 159 #if defined(HAVE_MACH_ABSOLUTE_TIME) && defined(HAVE_MACH_MACH_TIME_H) && !defined(HAVE_TICK_COUNTER)
Chris@42 160 #include <mach/mach_time.h>
Chris@42 161 typedef uint64_t ticks;
Chris@42 162 #define getticks mach_absolute_time
Chris@42 163 INLINE_ELAPSED(__inline__)
Chris@42 164 #define HAVE_TICK_COUNTER
Chris@42 165 #endif
Chris@42 166
Chris@42 167 /*----------------------------------------------------------------*/
Chris@42 168 /*
Chris@42 169 * Pentium cycle counter
Chris@42 170 */
Chris@42 171 #if (defined(__GNUC__) || defined(__ICC)) && defined(__i386__) && !defined(HAVE_TICK_COUNTER)
Chris@42 172 typedef unsigned long long ticks;
Chris@42 173
Chris@42 174 static __inline__ ticks getticks(void)
Chris@42 175 {
Chris@42 176 ticks ret;
Chris@42 177
Chris@42 178 __asm__ __volatile__("rdtsc": "=A" (ret));
Chris@42 179 /* no input, nothing else clobbered */
Chris@42 180 return ret;
Chris@42 181 }
Chris@42 182
Chris@42 183 INLINE_ELAPSED(__inline__)
Chris@42 184
Chris@42 185 #define HAVE_TICK_COUNTER
Chris@42 186 #define TIME_MIN 5000.0 /* unreliable pentium IV cycle counter */
Chris@42 187 #endif
Chris@42 188
Chris@42 189 /* Visual C++ -- thanks to Morten Nissov for his help with this */
Chris@42 190 #if _MSC_VER >= 1200 && _M_IX86 >= 500 && !defined(HAVE_TICK_COUNTER)
Chris@42 191 #include <windows.h>
Chris@42 192 typedef LARGE_INTEGER ticks;
Chris@42 193 #define RDTSC __asm __emit 0fh __asm __emit 031h /* hack for VC++ 5.0 */
Chris@42 194
Chris@42 195 static __inline ticks getticks(void)
Chris@42 196 {
Chris@42 197 ticks retval;
Chris@42 198
Chris@42 199 __asm {
Chris@42 200 RDTSC
Chris@42 201 mov retval.HighPart, edx
Chris@42 202 mov retval.LowPart, eax
Chris@42 203 }
Chris@42 204 return retval;
Chris@42 205 }
Chris@42 206
Chris@42 207 static __inline double elapsed(ticks t1, ticks t0)
Chris@42 208 {
Chris@42 209 return (double)t1.QuadPart - (double)t0.QuadPart;
Chris@42 210 }
Chris@42 211
Chris@42 212 #define HAVE_TICK_COUNTER
Chris@42 213 #define TIME_MIN 5000.0 /* unreliable pentium IV cycle counter */
Chris@42 214 #endif
Chris@42 215
Chris@42 216 /*----------------------------------------------------------------*/
Chris@42 217 /*
Chris@42 218 * X86-64 cycle counter
Chris@42 219 */
Chris@42 220 #if (defined(__GNUC__) || defined(__ICC) || defined(__SUNPRO_C)) && defined(__x86_64__) && !defined(HAVE_TICK_COUNTER)
Chris@42 221 typedef unsigned long long ticks;
Chris@42 222
Chris@42 223 static __inline__ ticks getticks(void)
Chris@42 224 {
Chris@42 225 unsigned a, d;
Chris@42 226 asm volatile("rdtsc" : "=a" (a), "=d" (d));
Chris@42 227 return ((ticks)a) | (((ticks)d) << 32);
Chris@42 228 }
Chris@42 229
Chris@42 230 INLINE_ELAPSED(__inline__)
Chris@42 231
Chris@42 232 #define HAVE_TICK_COUNTER
Chris@42 233 #define TIME_MIN 5000.0
Chris@42 234 #endif
Chris@42 235
Chris@42 236 /* PGI compiler, courtesy Cristiano Calonaci, Andrea Tarsi, & Roberto Gori.
Chris@42 237 NOTE: this code will fail to link unless you use the -Masmkeyword compiler
Chris@42 238 option (grrr). */
Chris@42 239 #if defined(__PGI) && defined(__x86_64__) && !defined(HAVE_TICK_COUNTER)
Chris@42 240 typedef unsigned long long ticks;
Chris@42 241 static ticks getticks(void)
Chris@42 242 {
Chris@42 243 asm(" rdtsc; shl $0x20,%rdx; mov %eax,%eax; or %rdx,%rax; ");
Chris@42 244 }
Chris@42 245 INLINE_ELAPSED(__inline__)
Chris@42 246 #define HAVE_TICK_COUNTER
Chris@42 247 #define TIME_MIN 5000.0
Chris@42 248 #endif
Chris@42 249
Chris@42 250 /* Visual C++, courtesy of Dirk Michaelis */
Chris@42 251 #if _MSC_VER >= 1400 && (defined(_M_AMD64) || defined(_M_X64)) && !defined(HAVE_TICK_COUNTER)
Chris@42 252
Chris@42 253 #include <intrin.h>
Chris@42 254 #pragma intrinsic(__rdtsc)
Chris@42 255 typedef unsigned __int64 ticks;
Chris@42 256 #define getticks __rdtsc
Chris@42 257 INLINE_ELAPSED(__inline)
Chris@42 258
Chris@42 259 #define HAVE_TICK_COUNTER
Chris@42 260 #define TIME_MIN 5000.0
Chris@42 261 #endif
Chris@42 262
Chris@42 263 /*----------------------------------------------------------------*/
Chris@42 264 /*
Chris@42 265 * IA64 cycle counter
Chris@42 266 */
Chris@42 267
Chris@42 268 /* intel's icc/ecc compiler */
Chris@42 269 #if (defined(__EDG_VERSION) || defined(__ECC)) && defined(__ia64__) && !defined(HAVE_TICK_COUNTER)
Chris@42 270 typedef unsigned long ticks;
Chris@42 271 #include <ia64intrin.h>
Chris@42 272
Chris@42 273 static __inline__ ticks getticks(void)
Chris@42 274 {
Chris@42 275 return __getReg(_IA64_REG_AR_ITC);
Chris@42 276 }
Chris@42 277
Chris@42 278 INLINE_ELAPSED(__inline__)
Chris@42 279
Chris@42 280 #define HAVE_TICK_COUNTER
Chris@42 281 #endif
Chris@42 282
Chris@42 283 /* gcc */
Chris@42 284 #if defined(__GNUC__) && defined(__ia64__) && !defined(HAVE_TICK_COUNTER)
Chris@42 285 typedef unsigned long ticks;
Chris@42 286
Chris@42 287 static __inline__ ticks getticks(void)
Chris@42 288 {
Chris@42 289 ticks ret;
Chris@42 290
Chris@42 291 __asm__ __volatile__ ("mov %0=ar.itc" : "=r"(ret));
Chris@42 292 return ret;
Chris@42 293 }
Chris@42 294
Chris@42 295 INLINE_ELAPSED(__inline__)
Chris@42 296
Chris@42 297 #define HAVE_TICK_COUNTER
Chris@42 298 #endif
Chris@42 299
Chris@42 300 /* HP/UX IA64 compiler, courtesy Teresa L. Johnson: */
Chris@42 301 #if defined(__hpux) && defined(__ia64) && !defined(HAVE_TICK_COUNTER)
Chris@42 302 #include <machine/sys/inline.h>
Chris@42 303 typedef unsigned long ticks;
Chris@42 304
Chris@42 305 static inline ticks getticks(void)
Chris@42 306 {
Chris@42 307 ticks ret;
Chris@42 308
Chris@42 309 ret = _Asm_mov_from_ar (_AREG_ITC);
Chris@42 310 return ret;
Chris@42 311 }
Chris@42 312
Chris@42 313 INLINE_ELAPSED(inline)
Chris@42 314
Chris@42 315 #define HAVE_TICK_COUNTER
Chris@42 316 #endif
Chris@42 317
Chris@42 318 /* Microsoft Visual C++ */
Chris@42 319 #if defined(_MSC_VER) && defined(_M_IA64) && !defined(HAVE_TICK_COUNTER)
Chris@42 320 typedef unsigned __int64 ticks;
Chris@42 321
Chris@42 322 # ifdef __cplusplus
Chris@42 323 extern "C"
Chris@42 324 # endif
Chris@42 325 ticks __getReg(int whichReg);
Chris@42 326 #pragma intrinsic(__getReg)
Chris@42 327
Chris@42 328 static __inline ticks getticks(void)
Chris@42 329 {
Chris@42 330 volatile ticks temp;
Chris@42 331 temp = __getReg(3116);
Chris@42 332 return temp;
Chris@42 333 }
Chris@42 334
Chris@42 335 INLINE_ELAPSED(inline)
Chris@42 336
Chris@42 337 #define HAVE_TICK_COUNTER
Chris@42 338 #endif
Chris@42 339
Chris@42 340 /*----------------------------------------------------------------*/
Chris@42 341 /*
Chris@42 342 * PA-RISC cycle counter
Chris@42 343 */
Chris@42 344 #if (defined(__hppa__) || defined(__hppa)) && !defined(HAVE_TICK_COUNTER)
Chris@42 345 typedef unsigned long ticks;
Chris@42 346
Chris@42 347 # ifdef __GNUC__
Chris@42 348 static __inline__ ticks getticks(void)
Chris@42 349 {
Chris@42 350 ticks ret;
Chris@42 351
Chris@42 352 __asm__ __volatile__("mfctl 16, %0": "=r" (ret));
Chris@42 353 /* no input, nothing else clobbered */
Chris@42 354 return ret;
Chris@42 355 }
Chris@42 356 # else
Chris@42 357 # include <machine/inline.h>
Chris@42 358 static inline unsigned long getticks(void)
Chris@42 359 {
Chris@42 360 register ticks ret;
Chris@42 361 _MFCTL(16, ret);
Chris@42 362 return ret;
Chris@42 363 }
Chris@42 364 # endif
Chris@42 365
Chris@42 366 INLINE_ELAPSED(inline)
Chris@42 367
Chris@42 368 #define HAVE_TICK_COUNTER
Chris@42 369 #endif
Chris@42 370
Chris@42 371 /*----------------------------------------------------------------*/
Chris@42 372 /* S390, courtesy of James Treacy */
Chris@42 373 #if defined(__GNUC__) && defined(__s390__) && !defined(HAVE_TICK_COUNTER)
Chris@42 374 typedef unsigned long long ticks;
Chris@42 375
Chris@42 376 static __inline__ ticks getticks(void)
Chris@42 377 {
Chris@42 378 ticks cycles;
Chris@42 379 __asm__("stck 0(%0)" : : "a" (&(cycles)) : "memory", "cc");
Chris@42 380 return cycles;
Chris@42 381 }
Chris@42 382
Chris@42 383 INLINE_ELAPSED(__inline__)
Chris@42 384
Chris@42 385 #define HAVE_TICK_COUNTER
Chris@42 386 #endif
Chris@42 387 /*----------------------------------------------------------------*/
Chris@42 388 #if defined(__GNUC__) && defined(__alpha__) && !defined(HAVE_TICK_COUNTER)
Chris@42 389 /*
Chris@42 390 * The 32-bit cycle counter on alpha overflows pretty quickly,
Chris@42 391 * unfortunately. A 1GHz machine overflows in 4 seconds.
Chris@42 392 */
Chris@42 393 typedef unsigned int ticks;
Chris@42 394
Chris@42 395 static __inline__ ticks getticks(void)
Chris@42 396 {
Chris@42 397 unsigned long cc;
Chris@42 398 __asm__ __volatile__ ("rpcc %0" : "=r"(cc));
Chris@42 399 return (cc & 0xFFFFFFFF);
Chris@42 400 }
Chris@42 401
Chris@42 402 INLINE_ELAPSED(__inline__)
Chris@42 403
Chris@42 404 #define HAVE_TICK_COUNTER
Chris@42 405 #endif
Chris@42 406
Chris@42 407 /*----------------------------------------------------------------*/
Chris@42 408 #if defined(__GNUC__) && defined(__sparc_v9__) && !defined(HAVE_TICK_COUNTER)
Chris@42 409 typedef unsigned long ticks;
Chris@42 410
Chris@42 411 static __inline__ ticks getticks(void)
Chris@42 412 {
Chris@42 413 ticks ret;
Chris@42 414 __asm__ __volatile__("rd %%tick, %0" : "=r" (ret));
Chris@42 415 return ret;
Chris@42 416 }
Chris@42 417
Chris@42 418 INLINE_ELAPSED(__inline__)
Chris@42 419
Chris@42 420 #define HAVE_TICK_COUNTER
Chris@42 421 #endif
Chris@42 422
Chris@42 423 /*----------------------------------------------------------------*/
Chris@42 424 #if (defined(__DECC) || defined(__DECCXX)) && defined(__alpha) && defined(HAVE_C_ASM_H) && !defined(HAVE_TICK_COUNTER)
Chris@42 425 # include <c_asm.h>
Chris@42 426 typedef unsigned int ticks;
Chris@42 427
Chris@42 428 static __inline ticks getticks(void)
Chris@42 429 {
Chris@42 430 unsigned long cc;
Chris@42 431 cc = asm("rpcc %v0");
Chris@42 432 return (cc & 0xFFFFFFFF);
Chris@42 433 }
Chris@42 434
Chris@42 435 INLINE_ELAPSED(__inline)
Chris@42 436
Chris@42 437 #define HAVE_TICK_COUNTER
Chris@42 438 #endif
Chris@42 439 /*----------------------------------------------------------------*/
Chris@42 440 /* SGI/Irix */
Chris@42 441 #if defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_SGI_CYCLE) && !defined(HAVE_TICK_COUNTER)
Chris@42 442 typedef struct timespec ticks;
Chris@42 443
Chris@42 444 static inline ticks getticks(void)
Chris@42 445 {
Chris@42 446 struct timespec t;
Chris@42 447 clock_gettime(CLOCK_SGI_CYCLE, &t);
Chris@42 448 return t;
Chris@42 449 }
Chris@42 450
Chris@42 451 static inline double elapsed(ticks t1, ticks t0)
Chris@42 452 {
Chris@42 453 return ((double)t1.tv_sec - (double)t0.tv_sec) * 1.0E9 +
Chris@42 454 ((double)t1.tv_nsec - (double)t0.tv_nsec);
Chris@42 455 }
Chris@42 456 #define HAVE_TICK_COUNTER
Chris@42 457 #endif
Chris@42 458
Chris@42 459 /*----------------------------------------------------------------*/
Chris@42 460 /* Cray UNICOS _rtc() intrinsic function */
Chris@42 461 #if defined(HAVE__RTC) && !defined(HAVE_TICK_COUNTER)
Chris@42 462 #ifdef HAVE_INTRINSICS_H
Chris@42 463 # include <intrinsics.h>
Chris@42 464 #endif
Chris@42 465
Chris@42 466 typedef long long ticks;
Chris@42 467
Chris@42 468 #define getticks _rtc
Chris@42 469
Chris@42 470 INLINE_ELAPSED(inline)
Chris@42 471
Chris@42 472 #define HAVE_TICK_COUNTER
Chris@42 473 #endif
Chris@42 474
Chris@42 475 /*----------------------------------------------------------------*/
Chris@42 476 /* MIPS ZBus */
Chris@42 477 #if HAVE_MIPS_ZBUS_TIMER
Chris@42 478 #if defined(__mips__) && !defined(HAVE_TICK_COUNTER)
Chris@42 479 #include <sys/mman.h>
Chris@42 480 #include <unistd.h>
Chris@42 481 #include <fcntl.h>
Chris@42 482
Chris@42 483 typedef uint64_t ticks;
Chris@42 484
Chris@42 485 static inline ticks getticks(void)
Chris@42 486 {
Chris@42 487 static uint64_t* addr = 0;
Chris@42 488
Chris@42 489 if (addr == 0)
Chris@42 490 {
Chris@42 491 uint32_t rq_addr = 0x10030000;
Chris@42 492 int fd;
Chris@42 493 int pgsize;
Chris@42 494
Chris@42 495 pgsize = getpagesize();
Chris@42 496 fd = open ("/dev/mem", O_RDONLY | O_SYNC, 0);
Chris@42 497 if (fd < 0) {
Chris@42 498 perror("open");
Chris@42 499 return NULL;
Chris@42 500 }
Chris@42 501 addr = mmap(0, pgsize, PROT_READ, MAP_SHARED, fd, rq_addr);
Chris@42 502 close(fd);
Chris@42 503 if (addr == (uint64_t *)-1) {
Chris@42 504 perror("mmap");
Chris@42 505 return NULL;
Chris@42 506 }
Chris@42 507 }
Chris@42 508
Chris@42 509 return *addr;
Chris@42 510 }
Chris@42 511
Chris@42 512 INLINE_ELAPSED(inline)
Chris@42 513
Chris@42 514 #define HAVE_TICK_COUNTER
Chris@42 515 #endif
Chris@42 516 #endif /* HAVE_MIPS_ZBUS_TIMER */
Chris@42 517
Chris@42 518 #if defined(__ARM_ARCH_7A__) && defined(ARMV7A_HAS_CNTCVT)
Chris@42 519 typedef uint64_t ticks;
Chris@42 520 static inline ticks getticks(void)
Chris@42 521 {
Chris@42 522 uint32_t Rt, Rt2 = 0;
Chris@42 523 asm volatile("mrrc p15, 1, %0, %1, c14" : "=r"(Rt), "=r"(Rt2));
Chris@42 524 return ((uint64_t)Rt) | (((uint64_t)Rt2) << 32);
Chris@42 525 }
Chris@42 526 INLINE_ELAPSED(inline)
Chris@42 527 #define HAVE_TICK_COUNTER
Chris@42 528 #endif
Chris@42 529
Chris@42 530 #if defined(__aarch64__) && defined(ARMV8_HAS_CNTCVT_EL0) && !defined(HAVE_ARMV8CC)
Chris@42 531 typedef uint64_t ticks;
Chris@42 532 static inline ticks getticks(void)
Chris@42 533 {
Chris@42 534 uint64_t Rt;
Chris@42 535 asm volatile("mrs %0, CNTVCT_EL0" : "=r" (Rt));
Chris@42 536 return Rt;
Chris@42 537 }
Chris@42 538 INLINE_ELAPSED(inline)
Chris@42 539 #define HAVE_TICK_COUNTER
Chris@42 540 #endif
Chris@42 541
Chris@42 542 #if defined(__aarch64__) && defined(HAVE_ARMV8CC)
Chris@42 543 typedef uint64_t ticks;
Chris@42 544 static inline ticks getticks(void)
Chris@42 545 {
Chris@42 546 uint64_t cc = 0;
Chris@42 547 asm volatile("mrs %0, PMCCNTR_EL0" : "=r"(cc));
Chris@42 548 return cc;
Chris@42 549 }
Chris@42 550 INLINE_ELAPSED(inline)
Chris@42 551 #define HAVE_TICK_COUNTER
Chris@42 552 #endif