1 #ifndef _URCU_ARCH_S390_H
2 #define _URCU_ARCH_S390_H
5 * Trivial definitions for the S390 architecture based on information from the
6 * Principles of Operation "CPU Serialization" (5-91), "BRANCH ON CONDITION"
7 * (7-25) and "STORE CLOCK" (7-169).
9 * Copyright (c) 2009 Novell, Inc.
10 * Author: Jan Blunck <jblunck@suse.de>
12 * Permission is hereby granted, free of charge, to any person obtaining a copy
13 * of this software and associated documentation files (the "Software"), to
14 * deal in the Software without restriction, including without limitation the
15 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
16 * sell copies of the Software, and to permit persons to whom the Software is
17 * furnished to do so, subject to the following conditions:
19 * The above copyright notice and this permission notice shall be included in
20 * all copies or substantial portions of the Software.
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
25 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
31 #include <urcu/compiler.h>
32 #include <urcu/config.h>
33 #include <urcu/syscall-compat.h>
40 #define CAA_CACHE_LINE_SIZE 128
42 #define cmm_mb() __asm__ __volatile__("bcr 15,0" : : : "memory")
44 #define HAS_CAA_GET_CYCLES
46 typedef uint64_t caa_cycles_t
;
48 static inline caa_cycles_t
caa_get_cycles (void)
52 __asm__
__volatile__("stck %0" : "=m" (cycles
) : : "cc", "memory" );
58 * On Linux, define the membarrier system call number if not yet available in
61 #if (defined(__linux__) && !defined(__NR_membarrier))
62 #define __NR_membarrier 356
69 #include <urcu/arch/generic.h>
71 #endif /* _URCU_ARCH_S390_H */
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