diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc32/power4/hp-timing.h')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/power4/hp-timing.h | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/sysdeps/powerpc/powerpc32/power4/hp-timing.h b/sysdeps/powerpc/powerpc32/power4/hp-timing.h deleted file mode 100644 index 93cce4625a..0000000000 --- a/sysdeps/powerpc/powerpc32/power4/hp-timing.h +++ /dev/null @@ -1,54 +0,0 @@ -/* High precision, low overhead timing functions. powerpc64 version. - Copyright (C) 2005-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _HP_TIMING_H -#define _HP_TIMING_H 1 - -/* We always assume having the timestamp register. */ -#define HP_TIMING_AVAIL (1) -#define HP_SMALL_TIMING_AVAIL (1) - -/* We indeed have inlined functions. */ -#define HP_TIMING_INLINE (1) - -/* We use 64bit values for the times. */ -typedef unsigned long long int hp_timing_t; - -/* That's quite simple. Use the `mftb' instruction. Note that the value - might not be 100% accurate since there might be some more instructions - running in this moment. This could be changed by using a barrier like - 'lwsync' right before the `mftb' instruction. But we are not interested - in accurate clock cycles here so we don't do this. */ - -#define HP_TIMING_NOW(Var) \ - do { \ - unsigned int hi, lo, tmp; \ - __asm__ __volatile__ ("1: mfspr %0,269;" \ - " mfspr %1,268;" \ - " mfspr %2,269;" \ - " cmpw %0,%2;" \ - " bne 1b;" \ - : "=&r" (hi), "=&r" (lo), "=&r" (tmp) \ - : : "cr0"); \ - Var = ((hp_timing_t) hi << 32) | lo; \ - } while (0) - -#include <hp-timing-common.h> - -#endif /* hp-timing.h */ |