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