1/* SPDX-License-Identifier: GPL-2.0-only */
 2
 3#ifndef __ASM_CSKY_JUMP_LABEL_H
 4#define __ASM_CSKY_JUMP_LABEL_H
 5
 6#ifndef __ASSEMBLY__
 7
 8#include <linux/types.h>
 9
10#define JUMP_LABEL_NOP_SIZE 4
11
12static __always_inline bool arch_static_branch(struct static_key *key,
13					       bool branch)
14{
15	asm_volatile_goto(
16		"1:	nop32					\n"
17		"	.pushsection	__jump_table, \"aw\"	\n"
18		"	.align		2			\n"
19		"	.long		1b - ., %l[label] - .	\n"
20		"	.long		%0 - .			\n"
21		"	.popsection				\n"
22		:  :  "i"(&((char *)key)[branch]) :  : label);
23
24	return false;
25label:
26	return true;
27}
28
29static __always_inline bool arch_static_branch_jump(struct static_key *key,
30						    bool branch)
31{
32	asm_volatile_goto(
33		"1:	bsr32		%l[label]		\n"
34		"	.pushsection	__jump_table, \"aw\"	\n"
35		"	.align		2			\n"
36		"	.long		1b - ., %l[label] - .	\n"
37		"	.long		%0 - .			\n"
38		"	.popsection				\n"
39		:  :  "i"(&((char *)key)[branch]) :  : label);
40
41	return false;
42label:
43	return true;
44}
45
46#endif  /* __ASSEMBLY__ */
47#endif	/* __ASM_CSKY_JUMP_LABEL_H */