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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. |
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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 | /* |
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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 | ||
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60 | /* |
61 | * Error out for compilers with known bugs. | |
62 | */ | |
63 | ||
64 | /* | |
65 | * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854 | |
66 | */ | |
67 | #ifdef URCU_GCC_VERSION | |
68 | # if URCU_GCC_VERSION >= 40800 && URCU_GCC_VERSION <= 40802 | |
69 | # error Your gcc version produces clobbered frame accesses | |
70 | # endif | |
71 | #endif | |
72 | ||
67ecffc0 | 73 | #ifdef __cplusplus |
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74 | } |
75 | #endif | |
76 | ||
1b9119f8 | 77 | #include <urcu/arch/generic.h> |
fdbddd0b | 78 | |
6aca0125 | 79 | #endif /* _URCU_ARCH_ARM_H */ |