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 <linux/stringify.h> 9 #include <asm/assembly.h> 10 11 #define JUMP_LABEL_NOP_SIZE 4 12 13 static __always_inline bool arch_static_branch(struct static_key *key, bool branch) 14 { 15 asm_volatile_goto("1:\n\t" 16 "nop\n\t" 17 ".pushsection __jump_table, \"aw\"\n\t" 18 ".word 1b - ., %l[l_yes] - .\n\t" 19 __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" 20 ".popsection\n\t" 21 : : "i" (&((char *)key)[branch]) : : l_yes); 22 23 return false; 24 l_yes: 25 return true; 26 } 27 28 static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) 29 { 30 asm_volatile_goto("1:\n\t" 31 "b,n %l[l_yes]\n\t" 32 ".pushsection __jump_table, \"aw\"\n\t" 33 ".word 1b - ., %l[l_yes] - .\n\t" 34 __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" 35 ".popsection\n\t" 36 : : "i" (&((char *)key)[branch]) : : l_yes); 37 38 return false; 39 l_yes: 40 return true; 41 } 42 43 #endif /* __ASSEMBLY__ */ 44 #endif 45