aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/s390/s390-64/atomicity.h
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/s390/s390-64/atomicity.h')
-rw-r--r--sysdeps/s390/s390-64/atomicity.h76
1 files changed, 0 insertions, 76 deletions
diff --git a/sysdeps/s390/s390-64/atomicity.h b/sysdeps/s390/s390-64/atomicity.h
deleted file mode 100644
index 11a5f7fa53..0000000000
--- a/sysdeps/s390/s390-64/atomicity.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Low-level functions for atomic operations. 64 bit S/390 version.
- Copyright (C) 2001 Free Software Foundation, Inc.
- Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
- 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 result;
- __asm__ __volatile__(
- " L %0,%2\n"
- " LA 2,%1\n"
- "0: LR 0,%0\n"
- " AR 0,%3\n"
- " CS %0,0,0(2)\n"
- " JL 0b"
- : "=&d" (result), "=m" (*mem)
- : "1" (*mem), "d" (val) : "0", "1", "2" );
- return result;
-}
-
-static inline void
-__attribute__ ((unused))
-atomic_add (volatile uint32_t *mem, int val)
-{
- __asm__ __volatile__(
- " LA 2,%0\n"
- "0: L 0,%1\n"
- " LR 1,0\n"
- " AR 1,%2\n"
- " CS 0,1,0(2)\n"
- " JL 0b"
- : "=m" (*mem) : "0" (*mem), "d" (val) : "0", "1", "2" );
-}
-
-static inline int
-__attribute__ ((unused))
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
- int retval;
-
- __asm__ __volatile__(
- " la 1,%1\n"
- " lgr 0,%2\n"
- " csg 0,%3,0(1)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:"
- : "=&r" (retval), "+m" (*p)
- : "d" (oldval) , "d" (newval)
- : "memory", "0", "1", "cc");
- return !retval;
-}
-
-#endif /* atomicity.h */