1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2020 Emil Renner Berthing
5 * Based on arch/arm64/include/asm/jump_label.h
7 #ifndef __ASM_JUMP_LABEL_H
8 #define __ASM_JUMP_LABEL_H
12 #include <linux/types.h>
15 #define JUMP_LABEL_NOP_SIZE 4
17 static __always_inline bool arch_static_branch(struct static_key * const key,
23 " .option norelax \n\t"
27 " .pushsection __jump_table, \"aw\" \n\t"
28 " .align " RISCV_LGPTR " \n\t"
29 " .long 1b - ., %l[label] - . \n\t"
30 " " RISCV_PTR " %0 - . \n\t"
32 : : "i"(&((char *)key)[branch]) : : label);
39 static __always_inline bool arch_static_branch_jump(struct static_key * const key,
45 " .option norelax \n\t"
47 "1: jal zero, %l[label] \n\t"
49 " .pushsection __jump_table, \"aw\" \n\t"
50 " .align " RISCV_LGPTR " \n\t"
51 " .long 1b - ., %l[label] - . \n\t"
52 " " RISCV_PTR " %0 - . \n\t"
54 : : "i"(&((char *)key)[branch]) : : label);
61 #endif /* __ASSEMBLY__ */
62 #endif /* __ASM_JUMP_LABEL_H */