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| author | Greentime Hu <greentime@andestech.com> | 2017-10-25 11:49:38 +0300 |
|---|---|---|
| committer | Greentime Hu <greentime@andestech.com> | 2018-02-22 05:44:32 +0300 |
| commit | 484367b6a9225ec6830ae3fb4a3adbdd724cb93a (patch) | |
| tree | c90dfc602450c33c2cc1f739a1b1ef067e626972 /arch/nds32/include/asm/barrier.h | |
| parent | f13c34b9066745910bd96f94bd35895af2d4f2b8 (diff) | |
| download | linux-484367b6a9225ec6830ae3fb4a3adbdd724cb93a.tar.xz | |
nds32: Atomic operations
This patch includes the atomic and futex operations. Many atomic operations use
the load-lock word(llw) and store-condition word(scw) operations.
Signed-off-by: Vincent Chen <vincentc@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/nds32/include/asm/barrier.h')
| -rw-r--r-- | arch/nds32/include/asm/barrier.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/barrier.h b/arch/nds32/include/asm/barrier.h new file mode 100644 index 000000000000..faafc373ea6c --- /dev/null +++ b/arch/nds32/include/asm/barrier.h @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2017 Andes Technology Corporation + +#ifndef __NDS32_ASM_BARRIER_H +#define __NDS32_ASM_BARRIER_H + +#ifndef __ASSEMBLY__ +#define mb() asm volatile("msync all":::"memory") +#define rmb() asm volatile("msync all":::"memory") +#define wmb() asm volatile("msync store":::"memory") +#include <asm-generic/barrier.h> + +#endif /* __ASSEMBLY__ */ + +#endif /* __NDS32_ASM_BARRIER_H */ |