1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_X86_CMPXCHG_64_H 3 #define _ASM_X86_CMPXCHG_64_H 4 5 #define arch_cmpxchg64(ptr, o, n) \ 6 ({ \ 7 BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ 8 arch_cmpxchg((ptr), (o), (n)); \ 9 }) 10 11 #define arch_cmpxchg64_local(ptr, o, n) \ 12 ({ \ 13 BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ 14 arch_cmpxchg_local((ptr), (o), (n)); \ 15 }) 16 17 #define arch_try_cmpxchg64(ptr, po, n) \ 18 ({ \ 19 BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ 20 arch_try_cmpxchg((ptr), (po), (n)); \ 21 }) 22 23 #define system_has_cmpxchg_double() boot_cpu_has(X86_FEATURE_CX16) 24 25 #endif /* _ASM_X86_CMPXCHG_64_H */ 26