1#ifndef _ASM_ARM_JUMP_LABEL_H
2#define _ASM_ARM_JUMP_LABEL_H
3
4#ifndef __ASSEMBLY__
5
6#include <linux/types.h>
7#include <asm/unified.h>
8
9#define JUMP_LABEL_NOP_SIZE 4
10
11static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
12{
13	asm_volatile_goto("1:\n\t"
14		 WASM(nop) "\n\t"
15		 ".pushsection __jump_table,  \"aw\"\n\t"
16		 ".word 1b, %l[l_yes], %c0\n\t"
17		 ".popsection\n\t"
18		 : :  "i" (&((char *)key)[branch]) :  : l_yes);
19
20	return false;
21l_yes:
22	return true;
23}
24
25static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
26{
27	asm_volatile_goto("1:\n\t"
28		 WASM(b) " %l[l_yes]\n\t"
29		 ".pushsection __jump_table,  \"aw\"\n\t"
30		 ".word 1b, %l[l_yes], %c0\n\t"
31		 ".popsection\n\t"
32		 : :  "i" (&((char *)key)[branch]) :  : l_yes);
33
34	return false;
35l_yes:
36	return true;
37}
38
39typedef u32 jump_label_t;
40
41struct jump_entry {
42	jump_label_t code;
43	jump_label_t target;
44	jump_label_t key;
45};
46
47#endif  /* __ASSEMBLY__ */
48#endif
49