diff options
Diffstat (limited to 'include/gapk/get_cycles.h')
| -rw-r--r-- | include/gapk/get_cycles.h | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/include/gapk/get_cycles.h b/include/gapk/get_cycles.h deleted file mode 100644 index 9eb7bc3..0000000 --- a/include/gapk/get_cycles.h +++ /dev/null @@ -1,138 +0,0 @@ -/* - * Copyright (c) 2005 Mellanox Technologies Ltd., - * (c) 2005 Harald Welte <laforge@gnumonks.org>, All rights reserved. - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the - * OpenIB.org BSD license below: - * - * Redistribution and use in source and binary forms, with or - * without modification, are permitted provided that the following - * conditions are met: - * - * - Redistributions of source code must retain the above - * copyright notice, this list of conditions and the following - * disclaimer. - * - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials - * provided with the distribution. - * - * 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. - * - * $Id$ - */ - -#ifndef GET_CLOCK_H -#define GET_CLOCK_H - -#if 0 - -#define _POSIX_C_SOURCE 199506L -#include <unistd.h> -#include <time.h> - -/* Ideally we would be using clock_getres() and clock_gettime(). - * glibc manpage says CLOCK_PROCESS_CPUTIME_ID is only defined if it is - * actually present. however, on ppc64 it is defined but not implemented. */ -#ifdef CLOCK_PROCESS_CPUTIME_ID -typedef long cycles_t; -static inline cycles_t get_cycles() -{ - struct timespec ts; - -#if defined (__x86_64__) || defined(__i386__) - asm volatile ("cpuid" : : : "eax", "ebx", "ecx", "edx" ); /* flush pipeline */ -#endif - clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts); - return ts.tv_nsec; -} -#endif - -#endif - -#if defined (__x86_64__) || defined(__i386__) -/* Note: only x86 CPUs which have rdtsc instruction are supported. */ -typedef unsigned long long cycles_t; -static inline cycles_t get_cycles() -{ - unsigned low, high; - unsigned long long val; - asm volatile ("cpuid" : : : "eax", "ebx", "ecx", "edx" ); /* flush pipeline */ - asm volatile ("rdtsc" : "=a" (low), "=d" (high)); - val = high; - val = (val << 32) | low; - return val; -} -#elif defined(__PPC64__) -/* Note: only PPC CPUs which have mftb instruction are supported. */ -typedef unsigned long long cycles_t; -static inline cycles_t get_cycles() -{ - cycles_t ret; - - asm volatile ("mftb %0" : "=r" (ret) : ); - return ret; -} -#elif defined(__sparc__) -/* Note: only sparc64 supports this register */ -typedef unsigned long long cycles_t; -#define TICK_PRIV_BIT (1ULL << 63) -static inline cycles_t get_cycles() -{ - cycles_t ret; - -#if defined(__sparcv9) || defined(__arch64__) - asm volatile ("rd %%tick, %0" : "=r" (ret)); -#else - asm volatile ("rd %%tick, %%g1\n\t" - "srlx %%g1, 32, %H0\n\t" - "srl %%g1, 0, %L0" - : "=r" (ret) - : /* no inputs */ - : "g1"); -#endif - return ret & ~TICK_PRIV_BIT; -} -#elif defined(__PPC__) -#define CPU_FTR_601 0x00000100 -typedef unsigned long cycles_t; -static inline cycles_t get_cycles() -{ - cycles_t ret; - - asm volatile ( - "98: mftb %0\n" - "99:\n" - ".section __ftr_fixup,\"a\"\n" - " .long %1\n" - " .long 0\n" - " .long 98b\n" - " .long 99b\n" - ".previous" - : "=r" (ret) : "i" (CPU_FTR_601)); - return ret; -} -#elif defined(__ia64__) || defined(__mips__) || \ - defined(__s390__) -/* Itanium2 and up has ar.itc (Itanium1 has errata) */ -/* PPC64 has mftb */ -#include <asm/timex.h> -#else -#warning get_cycles not implemented for this architecture: attempt asm/timex.h -#include <asm/timex.h> -#endif - -extern double get_cpu_mhz(void); - -#endif /* GET_CLOCK_H */ |