Cleanup headers

[urcu.git] / arch_atomic_s390.h

diff --git a/arch_atomic_s390.h b/arch_atomic_s390.h
deleted file mode 100644 (file)
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 */