diff options
Diffstat (limited to 'arch/arm64/include/asm/lsui.h')
| -rw-r--r-- | arch/arm64/include/asm/lsui.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/lsui.h b/arch/arm64/include/asm/lsui.h new file mode 100644 index 000000000000..8f0d81953eb6 --- /dev/null +++ b/arch/arm64/include/asm/lsui.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_LSUI_H +#define __ASM_LSUI_H + +#include <linux/compiler_types.h> +#include <linux/stringify.h> +#include <asm/alternative.h> +#include <asm/alternative-macros.h> +#include <asm/cpucaps.h> + +#define __LSUI_PREAMBLE ".arch_extension lsui\n" + +#ifdef CONFIG_ARM64_LSUI + +#define __lsui_llsc_body(op, ...) \ +({ \ + alternative_has_cap_unlikely(ARM64_HAS_LSUI) ? \ + __lsui_##op(__VA_ARGS__) : __llsc_##op(__VA_ARGS__); \ +}) + +#else /* CONFIG_ARM64_LSUI */ + +#define __lsui_llsc_body(op, ...) __llsc_##op(__VA_ARGS__) + +#endif /* CONFIG_ARM64_LSUI */ + +#endif /* __ASM_LSUI_H */ |