projects / userspace-rcu.git / blame
| Commit | Line | Data |
|---|---|---|
| 6aca0125 JW |
1 | #ifndef _URCU_ARCH_ARM_H |
| 2 | #define _URCU_ARCH_ARM_H | |
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3 | |
| 4 | /* | |
| 6aca0125 | 5 | * arch_arm.h: trivial definitions for the ARM architecture. |
| fdbddd0b PM |
6 | * |
| 7 | * Copyright (c) 2010 Paul E. McKenney, IBM Corporation. | |
| 6982d6d7 | 8 | * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
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9 | * |
| 10 | * This library is free software; you can redistribute it and/or | |
| 11 | * modify it under the terms of the GNU Lesser General Public | |
| 12 | * License as published by the Free Software Foundation; either | |
| 13 | * version 2.1 of the License, or (at your option) any later version. | |
| 14 | * | |
| 15 | * This library is distributed in the hope that it will be useful, | |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 | * Lesser General Public License for more details. | |
| 19 | * | |
| 20 | * You should have received a copy of the GNU Lesser General Public | |
| 21 | * License along with this library; if not, write to the Free Software | |
| 22 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 23 | */ | |
| 24 | ||
| 25 | #include <urcu/compiler.h> | |
| 26 | #include <urcu/config.h> | |
| 999991c6 | 27 | #include <urcu/syscall-compat.h> |
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28 | |
| 29 | #ifdef __cplusplus | |
| 30 | extern "C" { | |
| 67ecffc0 | 31 | #endif |
| fdbddd0b | 32 | |
| e95ee429 | 33 | #ifdef CONFIG_RCU_ARM_HAVE_DMB |
| 7fe7e9f3 MD |
34 | /* |
| 35 | * Issues full system DMB operation. | |
| 36 | */ | |
| 37 | #define cmm_mb() __asm__ __volatile__ ("dmb sy":::"memory") | |
| 38 | #define cmm_rmb() __asm__ __volatile__ ("dmb sy":::"memory") | |
| 39 | #define cmm_wmb() __asm__ __volatile__ ("dmb sy":::"memory") | |
| 40 | ||
| 41 | /* | |
| 42 | * Issues DMB operation only to the inner shareable domain. | |
| 43 | */ | |
| 44 | #define cmm_smp_mb() __asm__ __volatile__ ("dmb ish":::"memory") | |
| 45 | #define cmm_smp_rmb() __asm__ __volatile__ ("dmb ish":::"memory") | |
| 46 | #define cmm_smp_wmb() __asm__ __volatile__ ("dmb ish":::"memory") | |
| e95ee429 | 47 | #endif /* CONFIG_RCU_ARM_HAVE_DMB */ |
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48 | |
| 49 | #include <stdlib.h> | |
| 50 | #include <sys/time.h> | |
| 51 | ||
| da5b715a | 52 | /* |
| 84f4ccb4 MD |
53 | * On Linux, define the membarrier system call number if not yet available in |
| 54 | * the system headers. | |
| da5b715a | 55 | */ |
| 84f4ccb4 | 56 | #if (defined(__linux__) && !defined(__NR_membarrier)) |
| da5b715a MD |
57 | #define __NR_membarrier 389 |
| 58 | #endif | |
| 59 | ||
| 67ecffc0 | 60 | #ifdef __cplusplus |
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61 | } |
| 62 | #endif | |
| 63 | ||
| 1b9119f8 | 64 | #include <urcu/arch/generic.h> |
| fdbddd0b | 65 | |
| 6aca0125 | 66 | #endif /* _URCU_ARCH_ARM_H */ |