Файловый менеджер - Редактировать - /usr/src/linux-hwe-5.15-headers-5.15.0-122/arch/arm64/include/asm/lse.h
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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_LSE_H #define __ASM_LSE_H #include <asm/atomic_ll_sc.h> #ifdef CONFIG_ARM64_LSE_ATOMICS #define __LSE_PREAMBLE ".arch_extension lse\n" #include <linux/compiler_types.h> #include <linux/export.h> #include <linux/jump_label.h> #include <linux/stringify.h> #include <asm/alternative.h> #include <asm/atomic_lse.h> #include <asm/cpucaps.h> extern struct static_key_false cpu_hwcap_keys[ARM64_NCAPS]; extern struct static_key_false arm64_const_caps_ready; static inline bool system_uses_lse_atomics(void) { return (static_branch_likely(&arm64_const_caps_ready)) && static_branch_likely(&cpu_hwcap_keys[ARM64_HAS_LSE_ATOMICS]); } #define __lse_ll_sc_body(op, ...) \ ({ \ system_uses_lse_atomics() ? \ __lse_##op(__VA_ARGS__) : \ __ll_sc_##op(__VA_ARGS__); \ }) /* In-line patching at runtime */ #define ARM64_LSE_ATOMIC_INSN(llsc, lse) \ ALTERNATIVE(llsc, __LSE_PREAMBLE lse, ARM64_HAS_LSE_ATOMICS) #else /* CONFIG_ARM64_LSE_ATOMICS */ static inline bool system_uses_lse_atomics(void) { return false; } #define __lse_ll_sc_body(op, ...) __ll_sc_##op(__VA_ARGS__) #define ARM64_LSE_ATOMIC_INSN(llsc, lse) llsc #endif /* CONFIG_ARM64_LSE_ATOMICS */ #endif /* __ASM_LSE_H */
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