mirror of
https://github.com/tildearrow/furnace.git
synced 2024-12-20 23:40:23 +00:00
564 lines
15 KiB
C
564 lines
15 KiB
C
/*
|
|
* Copyright (c) 2003, 2007-14 Matteo Frigo
|
|
* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
|
|
/* machine-dependent cycle counters code. Needs to be inlined. */
|
|
|
|
/***************************************************************************/
|
|
/* To use the cycle counters in your code, simply #include "cycle.h" (this
|
|
file), and then use the functions/macros:
|
|
|
|
ticks getticks(void);
|
|
|
|
ticks is an opaque typedef defined below, representing the current time.
|
|
You extract the elapsed time between two calls to gettick() via:
|
|
|
|
double elapsed(ticks t1, ticks t0);
|
|
|
|
which returns a double-precision variable in arbitrary units. You
|
|
are not expected to convert this into human units like seconds; it
|
|
is intended only for *comparisons* of time intervals.
|
|
|
|
(In order to use some of the OS-dependent timer routines like
|
|
Solaris' gethrtime, you need to paste the autoconf snippet below
|
|
into your configure.ac file and #include "config.h" before cycle.h,
|
|
or define the relevant macros manually if you are not using autoconf.)
|
|
*/
|
|
|
|
/***************************************************************************/
|
|
/* This file uses macros like HAVE_GETHRTIME that are assumed to be
|
|
defined according to whether the corresponding function/type/header
|
|
is available on your system. The necessary macros are most
|
|
conveniently defined if you are using GNU autoconf, via the tests:
|
|
|
|
dnl ---------------------------------------------------------------------
|
|
|
|
AC_C_INLINE
|
|
AC_HEADER_TIME
|
|
AC_CHECK_HEADERS([sys/time.h c_asm.h intrinsics.h mach/mach_time.h])
|
|
|
|
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
|
|
#include <sys/time.h>
|
|
#endif])
|
|
|
|
AC_CHECK_FUNCS([gethrtime read_real_time time_base_to_time clock_gettime mach_absolute_time])
|
|
|
|
dnl Cray UNICOS _rtc() (real-time clock) intrinsic
|
|
AC_MSG_CHECKING([for _rtc intrinsic])
|
|
rtc_ok=yes
|
|
AC_TRY_LINK([#ifdef HAVE_INTRINSICS_H
|
|
#include <intrinsics.h>
|
|
#endif], [_rtc()], [AC_DEFINE(HAVE__RTC,1,[Define if you have the UNICOS _rtc() intrinsic.])], [rtc_ok=no])
|
|
AC_MSG_RESULT($rtc_ok)
|
|
|
|
dnl ---------------------------------------------------------------------
|
|
*/
|
|
|
|
/***************************************************************************/
|
|
|
|
#if TIME_WITH_SYS_TIME
|
|
# include <sys/time.h>
|
|
# include <time.h>
|
|
#else
|
|
# if HAVE_SYS_TIME_H
|
|
# include <sys/time.h>
|
|
# else
|
|
# include <time.h>
|
|
# endif
|
|
#endif
|
|
|
|
#define INLINE_ELAPSED(INL) static INL double elapsed(ticks t1, ticks t0) \
|
|
{ \
|
|
return (double)t1 - (double)t0; \
|
|
}
|
|
|
|
/*----------------------------------------------------------------*/
|
|
/* Solaris */
|
|
#if defined(HAVE_GETHRTIME) && defined(HAVE_HRTIME_T) && !defined(HAVE_TICK_COUNTER)
|
|
typedef hrtime_t ticks;
|
|
|
|
#define getticks gethrtime
|
|
|
|
INLINE_ELAPSED(inline)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
/* AIX v. 4+ routines to read the real-time clock or time-base register */
|
|
#if defined(HAVE_READ_REAL_TIME) && defined(HAVE_TIME_BASE_TO_TIME) && !defined(HAVE_TICK_COUNTER)
|
|
typedef timebasestruct_t ticks;
|
|
|
|
static __inline ticks getticks(void)
|
|
{
|
|
ticks t;
|
|
read_real_time(&t, TIMEBASE_SZ);
|
|
return t;
|
|
}
|
|
|
|
static __inline double elapsed(ticks t1, ticks t0) /* time in nanoseconds */
|
|
{
|
|
time_base_to_time(&t1, TIMEBASE_SZ);
|
|
time_base_to_time(&t0, TIMEBASE_SZ);
|
|
return (((double)t1.tb_high - (double)t0.tb_high) * 1.0e9 +
|
|
((double)t1.tb_low - (double)t0.tb_low));
|
|
}
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
/*
|
|
* PowerPC ``cycle'' counter using the time base register.
|
|
*/
|
|
#if ((((defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))) || (defined(__MWERKS__) && defined(macintosh)))) || (defined(__IBM_GCC_ASM) && (defined(__powerpc__) || defined(__ppc__)))) && !defined(HAVE_TICK_COUNTER)
|
|
typedef unsigned long long ticks;
|
|
|
|
static __inline__ ticks getticks(void)
|
|
{
|
|
unsigned int tbl, tbu0, tbu1;
|
|
|
|
do {
|
|
__asm__ __volatile__ ("mftbu %0" : "=r"(tbu0));
|
|
__asm__ __volatile__ ("mftb %0" : "=r"(tbl));
|
|
__asm__ __volatile__ ("mftbu %0" : "=r"(tbu1));
|
|
} while (tbu0 != tbu1);
|
|
|
|
return (((unsigned long long)tbu0) << 32) | tbl;
|
|
}
|
|
|
|
INLINE_ELAPSED(__inline__)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/* MacOS/Mach (Darwin) time-base register interface (unlike UpTime,
|
|
from Carbon, requires no additional libraries to be linked). */
|
|
#if defined(HAVE_MACH_ABSOLUTE_TIME) && defined(HAVE_MACH_MACH_TIME_H) && !defined(HAVE_TICK_COUNTER)
|
|
#include <mach/mach_time.h>
|
|
typedef uint64_t ticks;
|
|
#define getticks mach_absolute_time
|
|
INLINE_ELAPSED(__inline__)
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
/*
|
|
* Pentium cycle counter
|
|
*/
|
|
#if (defined(__GNUC__) || defined(__ICC)) && defined(__i386__) && !defined(HAVE_TICK_COUNTER)
|
|
typedef unsigned long long ticks;
|
|
|
|
static __inline__ ticks getticks(void)
|
|
{
|
|
ticks ret;
|
|
|
|
__asm__ __volatile__("rdtsc": "=A" (ret));
|
|
/* no input, nothing else clobbered */
|
|
return ret;
|
|
}
|
|
|
|
INLINE_ELAPSED(__inline__)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#define TIME_MIN 5000.0 /* unreliable pentium IV cycle counter */
|
|
#endif
|
|
|
|
/* Visual C++ -- thanks to Morten Nissov for his help with this */
|
|
#if _MSC_VER >= 1200 && _M_IX86 >= 500 && !defined(HAVE_TICK_COUNTER)
|
|
#include <windows.h>
|
|
typedef LARGE_INTEGER ticks;
|
|
#define RDTSC __asm __emit 0fh __asm __emit 031h /* hack for VC++ 5.0 */
|
|
|
|
static __inline ticks getticks(void)
|
|
{
|
|
ticks retval;
|
|
|
|
__asm {
|
|
RDTSC
|
|
mov retval.HighPart, edx
|
|
mov retval.LowPart, eax
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
static __inline double elapsed(ticks t1, ticks t0)
|
|
{
|
|
return (double)t1.QuadPart - (double)t0.QuadPart;
|
|
}
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#define TIME_MIN 5000.0 /* unreliable pentium IV cycle counter */
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
/*
|
|
* X86-64 cycle counter
|
|
*/
|
|
#if (defined(__GNUC__) || defined(__ICC) || defined(__SUNPRO_C)) && defined(__x86_64__) && !defined(HAVE_TICK_COUNTER)
|
|
typedef unsigned long long ticks;
|
|
|
|
static __inline__ ticks getticks(void)
|
|
{
|
|
unsigned a, d;
|
|
__asm__ __volatile__ ("rdtsc" : "=a" (a), "=d" (d));
|
|
return ((ticks)a) | (((ticks)d) << 32);
|
|
}
|
|
|
|
INLINE_ELAPSED(__inline__)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#define TIME_MIN 5000.0
|
|
#endif
|
|
|
|
/* PGI compiler, courtesy Cristiano Calonaci, Andrea Tarsi, & Roberto Gori.
|
|
NOTE: this code will fail to link unless you use the -Masmkeyword compiler
|
|
option (grrr). */
|
|
#if defined(__PGI) && defined(__x86_64__) && !defined(HAVE_TICK_COUNTER)
|
|
typedef unsigned long long ticks;
|
|
static ticks getticks(void)
|
|
{
|
|
asm(" rdtsc; shl $0x20,%rdx; mov %eax,%eax; or %rdx,%rax; ");
|
|
}
|
|
INLINE_ELAPSED(__inline__)
|
|
#define HAVE_TICK_COUNTER
|
|
#define TIME_MIN 5000.0
|
|
#endif
|
|
|
|
/* Visual C++, courtesy of Dirk Michaelis */
|
|
#if _MSC_VER >= 1400 && (defined(_M_AMD64) || defined(_M_X64)) && !defined(HAVE_TICK_COUNTER)
|
|
|
|
#include <intrin.h>
|
|
#pragma intrinsic(__rdtsc)
|
|
typedef unsigned __int64 ticks;
|
|
#define getticks __rdtsc
|
|
INLINE_ELAPSED(__inline)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#define TIME_MIN 5000.0
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
/*
|
|
* IA64 cycle counter
|
|
*/
|
|
|
|
/* intel's icc/ecc compiler */
|
|
#if (defined(__EDG_VERSION) || defined(__ECC)) && defined(__ia64__) && !defined(HAVE_TICK_COUNTER)
|
|
typedef unsigned long ticks;
|
|
#include <ia64intrin.h>
|
|
|
|
static __inline__ ticks getticks(void)
|
|
{
|
|
return __getReg(_IA64_REG_AR_ITC);
|
|
}
|
|
|
|
INLINE_ELAPSED(__inline__)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/* gcc */
|
|
#if defined(__GNUC__) && defined(__ia64__) && !defined(HAVE_TICK_COUNTER)
|
|
typedef unsigned long ticks;
|
|
|
|
static __inline__ ticks getticks(void)
|
|
{
|
|
ticks ret;
|
|
|
|
__asm__ __volatile__ ("mov %0=ar.itc" : "=r"(ret));
|
|
return ret;
|
|
}
|
|
|
|
INLINE_ELAPSED(__inline__)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/* HP/UX IA64 compiler, courtesy Teresa L. Johnson: */
|
|
#if defined(__hpux) && defined(__ia64) && !defined(HAVE_TICK_COUNTER)
|
|
#include <machine/sys/inline.h>
|
|
typedef unsigned long ticks;
|
|
|
|
static inline ticks getticks(void)
|
|
{
|
|
ticks ret;
|
|
|
|
ret = _Asm_mov_from_ar (_AREG_ITC);
|
|
return ret;
|
|
}
|
|
|
|
INLINE_ELAPSED(inline)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/* Microsoft Visual C++ */
|
|
#if defined(_MSC_VER) && defined(_M_IA64) && !defined(HAVE_TICK_COUNTER)
|
|
typedef unsigned __int64 ticks;
|
|
|
|
# ifdef __cplusplus
|
|
extern "C"
|
|
# endif
|
|
ticks __getReg(int whichReg);
|
|
#pragma intrinsic(__getReg)
|
|
|
|
static __inline ticks getticks(void)
|
|
{
|
|
volatile ticks temp;
|
|
temp = __getReg(3116);
|
|
return temp;
|
|
}
|
|
|
|
INLINE_ELAPSED(inline)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
/*
|
|
* PA-RISC cycle counter
|
|
*/
|
|
#if (defined(__hppa__) || defined(__hppa)) && !defined(HAVE_TICK_COUNTER)
|
|
typedef unsigned long ticks;
|
|
|
|
# ifdef __GNUC__
|
|
static __inline__ ticks getticks(void)
|
|
{
|
|
ticks ret;
|
|
|
|
__asm__ __volatile__("mfctl 16, %0": "=r" (ret));
|
|
/* no input, nothing else clobbered */
|
|
return ret;
|
|
}
|
|
# else
|
|
# include <machine/inline.h>
|
|
static inline unsigned long getticks(void)
|
|
{
|
|
register ticks ret;
|
|
_MFCTL(16, ret);
|
|
return ret;
|
|
}
|
|
# endif
|
|
|
|
INLINE_ELAPSED(inline)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
/* S390, courtesy of James Treacy */
|
|
#if defined(__GNUC__) && defined(__s390__) && !defined(HAVE_TICK_COUNTER)
|
|
typedef unsigned long long ticks;
|
|
|
|
static __inline__ ticks getticks(void)
|
|
{
|
|
ticks cycles;
|
|
__asm__("stck 0(%0)" : : "a" (&(cycles)) : "memory", "cc");
|
|
return cycles;
|
|
}
|
|
|
|
INLINE_ELAPSED(__inline__)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
/*----------------------------------------------------------------*/
|
|
#if defined(__GNUC__) && defined(__alpha__) && !defined(HAVE_TICK_COUNTER)
|
|
/*
|
|
* The 32-bit cycle counter on alpha overflows pretty quickly,
|
|
* unfortunately. A 1GHz machine overflows in 4 seconds.
|
|
*/
|
|
typedef unsigned int ticks;
|
|
|
|
static __inline__ ticks getticks(void)
|
|
{
|
|
unsigned long cc;
|
|
__asm__ __volatile__ ("rpcc %0" : "=r"(cc));
|
|
return (cc & 0xFFFFFFFF);
|
|
}
|
|
|
|
INLINE_ELAPSED(__inline__)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
#if defined(__GNUC__) && defined(__sparc_v9__) && !defined(HAVE_TICK_COUNTER)
|
|
typedef unsigned long ticks;
|
|
|
|
static __inline__ ticks getticks(void)
|
|
{
|
|
ticks ret;
|
|
__asm__ __volatile__("rd %%tick, %0" : "=r" (ret));
|
|
return ret;
|
|
}
|
|
|
|
INLINE_ELAPSED(__inline__)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
#if (defined(__DECC) || defined(__DECCXX)) && defined(__alpha) && defined(HAVE_C_ASM_H) && !defined(HAVE_TICK_COUNTER)
|
|
# include <c_asm.h>
|
|
typedef unsigned int ticks;
|
|
|
|
static __inline ticks getticks(void)
|
|
{
|
|
unsigned long cc;
|
|
cc = asm("rpcc %v0");
|
|
return (cc & 0xFFFFFFFF);
|
|
}
|
|
|
|
INLINE_ELAPSED(__inline)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
/*----------------------------------------------------------------*/
|
|
/* SGI/Irix */
|
|
#if defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_SGI_CYCLE) && !defined(HAVE_TICK_COUNTER) && !defined(__ANDROID__)
|
|
typedef struct timespec ticks;
|
|
|
|
static inline ticks getticks(void)
|
|
{
|
|
struct timespec t;
|
|
clock_gettime(CLOCK_SGI_CYCLE, &t);
|
|
return t;
|
|
}
|
|
|
|
static inline double elapsed(ticks t1, ticks t0)
|
|
{
|
|
return ((double)t1.tv_sec - (double)t0.tv_sec) * 1.0E9 +
|
|
((double)t1.tv_nsec - (double)t0.tv_nsec);
|
|
}
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
/* Cray UNICOS _rtc() intrinsic function */
|
|
#if defined(HAVE__RTC) && !defined(HAVE_TICK_COUNTER)
|
|
#ifdef HAVE_INTRINSICS_H
|
|
# include <intrinsics.h>
|
|
#endif
|
|
|
|
typedef long long ticks;
|
|
|
|
#define getticks _rtc
|
|
|
|
INLINE_ELAPSED(inline)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------*/
|
|
/* MIPS ZBus */
|
|
#if HAVE_MIPS_ZBUS_TIMER
|
|
#if defined(__mips__) && !defined(HAVE_TICK_COUNTER)
|
|
#include <sys/mman.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
|
|
typedef uint64_t ticks;
|
|
|
|
static inline ticks getticks(void)
|
|
{
|
|
static uint64_t* addr = 0;
|
|
|
|
if (addr == 0)
|
|
{
|
|
uint32_t rq_addr = 0x10030000;
|
|
int fd;
|
|
int pgsize;
|
|
|
|
pgsize = getpagesize();
|
|
fd = open ("/dev/mem", O_RDONLY | O_SYNC, 0);
|
|
if (fd < 0) {
|
|
perror("open");
|
|
return NULL;
|
|
}
|
|
addr = mmap(0, pgsize, PROT_READ, MAP_SHARED, fd, rq_addr);
|
|
close(fd);
|
|
if (addr == (uint64_t *)-1) {
|
|
perror("mmap");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
return *addr;
|
|
}
|
|
|
|
INLINE_ELAPSED(inline)
|
|
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
#endif /* HAVE_MIPS_ZBUS_TIMER */
|
|
|
|
#if defined(HAVE_ARMV7A_CNTVCT)
|
|
typedef uint64_t ticks;
|
|
static inline ticks getticks(void)
|
|
{
|
|
uint32_t Rt, Rt2 = 0;
|
|
asm volatile("mrrc p15, 1, %0, %1, c14" : "=r"(Rt), "=r"(Rt2));
|
|
return ((uint64_t)Rt) | (((uint64_t)Rt2) << 32);
|
|
}
|
|
INLINE_ELAPSED(inline)
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
#if defined(HAVE_ARMV7A_PMCCNTR)
|
|
typedef uint64_t ticks;
|
|
static inline ticks getticks(void)
|
|
{
|
|
uint32_t r;
|
|
asm volatile("mrc p15, 0, %0, c9, c13, 0" : "=r"(r) );
|
|
return r;
|
|
}
|
|
INLINE_ELAPSED(inline)
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
#if defined(__aarch64__) && defined(HAVE_ARMV8_CNTVCT_EL0) && !defined(HAVE_ARMV8_PMCCNTR_EL0)
|
|
typedef uint64_t ticks;
|
|
static inline ticks getticks(void)
|
|
{
|
|
uint64_t Rt;
|
|
asm volatile("mrs %0, CNTVCT_EL0" : "=r" (Rt));
|
|
return Rt;
|
|
}
|
|
INLINE_ELAPSED(inline)
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|
|
|
|
#if defined(__aarch64__) && defined(HAVE_ARMV8_PMCCNTR_EL0)
|
|
typedef uint64_t ticks;
|
|
static inline ticks getticks(void)
|
|
{
|
|
uint64_t cc = 0;
|
|
asm volatile("mrs %0, PMCCNTR_EL0" : "=r"(cc));
|
|
return cc;
|
|
}
|
|
INLINE_ELAPSED(inline)
|
|
#define HAVE_TICK_COUNTER
|
|
#endif
|