1 #ifndef _ASM_SPARC_JUMP_LABEL_H
2 #define _ASM_SPARC_JUMP_LABEL_H
3 
4 #ifndef __ASSEMBLY__
5 
6 #include <linux/types.h>
7 
8 #define JUMP_LABEL_NOP_SIZE 4
9 
10 static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
11 {
12 	asm_volatile_goto("1:\n\t"
13 		 "nop\n\t"
14 		 "nop\n\t"
15 		 ".pushsection __jump_table,  \"aw\"\n\t"
16 		 ".align 4\n\t"
17 		 ".word 1b, %l[l_yes], %c0\n\t"
18 		 ".popsection \n\t"
19 		 : :  "i" (&((char *)key)[branch]) : : l_yes);
20 
21 	return false;
22 l_yes:
23 	return true;
24 }
25 
26 static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
27 {
28 	asm_volatile_goto("1:\n\t"
29 		 "b %l[l_yes]\n\t"
30 		 "nop\n\t"
31 		 ".pushsection __jump_table,  \"aw\"\n\t"
32 		 ".align 4\n\t"
33 		 ".word 1b, %l[l_yes], %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 typedef u32 jump_label_t;
43 
44 struct jump_entry {
45 	jump_label_t code;
46 	jump_label_t target;
47 	jump_label_t key;
48 };
49 
50 #endif  /* __ASSEMBLY__ */
51 #endif
52