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Diffstat (limited to 'sysdeps/powerpc/powerpc32/atomicity.h')
-rw-r--r-- | sysdeps/powerpc/powerpc32/atomicity.h | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/sysdeps/powerpc/powerpc32/atomicity.h b/sysdeps/powerpc/powerpc32/atomicity.h deleted file mode 100644 index 253bd32673..0000000000 --- a/sysdeps/powerpc/powerpc32/atomicity.h +++ /dev/null @@ -1,98 +0,0 @@ -/* Low-level functions for atomic operations. PowerPC version. - Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _ATOMICITY_H -#define _ATOMICITY_H 1 - -#include <inttypes.h> - -static inline int -__attribute__ ((unused)) -exchange_and_add (volatile uint32_t *mem, int val) -{ - int tmp, result; - __asm__ ("\n\ -0: lwarx %0,0,%2 \n\ - add%I3 %1,%0,%3 \n\ - stwcx. %1,0,%2 \n\ - bne- 0b \n\ -" : "=&b"(result), "=&r"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory"); - return result; -} - -static inline void -__attribute__ ((unused)) -atomic_add (volatile uint32_t *mem, int val) -{ - int tmp; - __asm__ ("\n\ -0: lwarx %0,0,%1 \n\ - add%I2 %0,%0,%2 \n\ - stwcx. %0,0,%1 \n\ - bne- 0b \n\ -" : "=&b"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory"); -} - -static inline int -__attribute__ ((unused)) -compare_and_swap (volatile long int *p, long int oldval, long int newval) -{ - int result; - __asm__ ("\n\ -0: lwarx %0,0,%1 \n\ - sub%I2c. %0,%0,%2 \n\ - cntlzw %0,%0 \n\ - bne- 1f \n\ - stwcx. %3,0,%1 \n\ - bne- 0b \n\ -1: \n\ -" : "=&b"(result) : "r"(p), "Ir"(oldval), "r"(newval) : "cr0", "memory"); - return result >> 5; -} - -static inline long int -__attribute__ ((unused)) -always_swap (volatile long int *p, long int newval) -{ - long int result; - __asm__ ("\n\ -0: lwarx %0,0,%1 \n\ - stwcx. %2,0,%1 \n\ - bne- 0b \n\ -" : "=&r"(result) : "r"(p), "r"(newval) : "cr0", "memory"); - return result; -} - -static inline int -__attribute__ ((unused)) -test_and_set (volatile long int *p, long int newval) -{ - int result; - __asm__ ("\n\ -0: lwarx %0,0,%1 \n\ - cmpwi %0,0 \n\ - bne- 1f \n\ - stwcx. %2,0,%1 \n\ - bne- 0b \n\ -1: \n\ -" : "=&r"(result) : "r"(p), "r"(newval) : "cr0", "memory"); - return result; -} - -#endif /* atomicity.h */ |