X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=arch_atomic_s390.h;fp=arch_atomic_s390.h;h=0000000000000000000000000000000000000000;hp=8857d422e2f53d8899bc741778dbe99bf42eebe4;hb=ec4e58a3aba2084440012f8ccac3a31eb6101183;hpb=2f873279bc92fac32e6549d6eb72f3197c7048ac

diff --git a/arch_atomic_s390.h b/arch_atomic_s390.h
deleted file mode 100644
index 8857d42..0000000
--- a/arch_atomic_s390.h
+++ /dev/null
@@ -1,103 +0,0 @@
-#ifndef _ARCH_ATOMIC_S390_H
-#define _ARCH_ATOMIC_S390_H
-
-/*
- * Atomic exchange operations for the S390 architecture. Based on information
- * taken from the Principles of Operation Appendix A "Conditional Swapping
- * Instructions (CS, CDS)".
- *
- * Copyright (c) 2009 Novell, Inc.
- * Author: Jan Blunck <jblunck@suse.de>
- *
- * 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.
- */
-
-#ifndef __SIZEOF_LONG__
-#ifdef __s390x__
-#define __SIZEOF_LONG__ 8
-#else
-#define __SIZEOF_LONG__ 4
-#endif
-#endif
-
-#ifndef BITS_PER_LONG
-#define BITS_PER_LONG	(__SIZEOF_LONG__ * 8)
-#endif
-
-#ifndef _INCLUDE_API_H
-
-static inline __attribute__((always_inline))
-unsigned int atomic_exchange_32(volatile unsigned int *addr, unsigned int val)
-{
-	unsigned int result;
-
-	__asm__ __volatile__(
-		"0:	cs %0,%2,%1\n"
-		"	brc 4,0b\n"
-		: "=&r"(result), "=m" (*addr)
-		: "r"(val), "m" (*addr)
-		: "memory", "cc");
-
-	return result;
-}
-
-#if (BITS_PER_LONG == 64)
-
-static inline __attribute__((always_inline))
-unsigned long atomic_exchange_64(volatile unsigned long *addr,
-				 unsigned long val)
-{
-	unsigned long result;
-
-	__asm__ __volatile__(
-		"0:	csg %0,%2,%1\n"
-		"	brc 4,0b\n"
-		: "=&r"(result), "=m" (*addr)
-		: "r"(val), "m" (*addr)
-		: "memory", "cc");
-
-	return result;
-}
-
-#endif
-
-static inline __attribute__((always_inline))
-unsigned long _atomic_exchange(volatile void *addr, unsigned long val, int len)
-{
-	switch (len) {
-	case 4:
-		return atomic_exchange_32(addr, val);
-#if (BITS_PER_LONG == 64)
-	case 8:
-		return atomic_exchange_64(addr, val);
-#endif
-	default:
-		__asm__ __volatile__(".long	0xd00d00");
-	}
-
-	return 0;
-}
-
-#define xchg(addr, v)							\
-	(__typeof__(*(addr))) _atomic_exchange((addr), (unsigned long)(v), \
-					       sizeof(*(addr)))
-
-#endif /* #ifndef _INCLUDE_API_H */
-
-#endif /* ARCH_ATOMIC_S390_H */