/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __ASM_CSKY_JUMP_LABEL_H #define __ASM_CSKY_JUMP_LABEL_H #ifndef __ASSEMBLY__ #include <linux/types.h> #define JUMP_LABEL_NOP_SIZE 4 static __always_inline bool arch_static_branch(struct static_key *key, bool branch) { asm_volatile_goto( "1: nop32 \n" " .pushsection __jump_table, \"aw\" \n" " .align 2 \n" " .long 1b - ., %l[label] - . \n" " .long %0 - . \n" " .popsection \n" : : "i"(&((char *)key)[branch]) : : label); return false; label: return true; } static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) { asm_volatile_goto( "1: bsr32 %l[label] \n" " .pushsection __jump_table, \"aw\" \n" " .align 2 \n" " .long 1b - ., %l[label] - . \n" " .long %0 - . \n" " .popsection \n" : : "i"(&((char *)key)[branch]) : : label); return false; label: return true; } #endif /* __ASSEMBLY__ */ #endif /* __ASM_CSKY_JUMP_LABEL_H */