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 goto("1:\n\t" 16 "nop\n\t" 17 ".pushsection __jump_table, \"aw\"\n\t" 18 ".align %1\n\t" 19 ".word 1b - ., %l[l_yes] - .\n\t" 20 __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" 21 ".popsection\n\t" 22 : : "i" (&((char *)key)[branch]), "i" (sizeof(long)) 23 : : l_yes); 24 25 return false; 26 l_yes: 27 return true; 28 } 29 30 static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) 31 { 32 asm goto("1:\n\t" 33 "b,n %l[l_yes]\n\t" 34 ".pushsection __jump_table, \"aw\"\n\t" 35 ".align %1\n\t" 36 ".word 1b - ., %l[l_yes] - .\n\t" 37 __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" 38 ".popsection\n\t" 39 : : "i" (&((char *)key)[branch]), "i" (sizeof(long)) 40 : : l_yes); 41 42 return false; 43 l_yes: 44 return true; 45 } 46 47 #endif /* __ASSEMBLY__ */ 48 #endif 49