1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_PARISC_JUMP_LABEL_H 3 #define _ASM_PARISC_JUMP_LABEL_H 4 5 #ifndef __ASSEMBLY__ 6 7 #include <linux/types.h> 8 #include <asm/assembly.h> 9 10 #define JUMP_LABEL_NOP_SIZE 4 11 12 static __always_inline bool arch_static_branch(struct static_key *key, bool branch) 13 { 14 asm_volatile_goto("1:\n\t" 15 "nop\n\t" 16 ".pushsection __jump_table, \"aw\"\n\t" 17 ".word 1b - ., %l[l_yes] - .\n\t" 18 __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" 19 ".popsection\n\t" 20 : : "i" (&((char *)key)[branch]) : : l_yes); 21 22 return false; 23 l_yes: 24 return true; 25 } 26 27 static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) 28 { 29 asm_volatile_goto("1:\n\t" 30 "b,n %l[l_yes]\n\t" 31 ".pushsection __jump_table, \"aw\"\n\t" 32 ".word 1b - ., %l[l_yes] - .\n\t" 33 __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" 34 ".popsection\n\t" 35 : : "i" (&((char *)key)[branch]) : : l_yes); 36 37 return false; 38 l_yes: 39 return true; 40 } 41 42 #endif /* __ASSEMBLY__ */ 43 #endif 44