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v5.4
 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_SPARC_JUMP_LABEL_H
 3#define _ASM_SPARC_JUMP_LABEL_H
 4
 5#ifndef __ASSEMBLY__
 6
 7#include <linux/types.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		 "nop\n\t"
15		 "nop\n\t"
16		 ".pushsection __jump_table,  \"aw\"\n\t"
17		 ".align 4\n\t"
18		 ".word 1b, %l[l_yes], %c0\n\t"
19		 ".popsection \n\t"
20		 : :  "i" (&((char *)key)[branch]) : : l_yes);
21
22	return false;
23l_yes:
24	return true;
25}
26
27static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
28{
29	asm_volatile_goto("1:\n\t"
30		 "b %l[l_yes]\n\t"
31		 "nop\n\t"
32		 ".pushsection __jump_table,  \"aw\"\n\t"
33		 ".align 4\n\t"
34		 ".word 1b, %l[l_yes], %c0\n\t"
35		 ".popsection \n\t"
36		 : :  "i" (&((char *)key)[branch]) : : l_yes);
37
38	return false;
39l_yes:
40	return true;
41}
42
43typedef u32 jump_label_t;
44
45struct jump_entry {
46	jump_label_t code;
47	jump_label_t target;
48	jump_label_t key;
49};
50
51#endif  /* __ASSEMBLY__ */
52#endif
v6.8
 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_SPARC_JUMP_LABEL_H
 3#define _ASM_SPARC_JUMP_LABEL_H
 4
 5#ifndef __ASSEMBLY__
 6
 7#include <linux/types.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 goto("1:\n\t"
14		 "nop\n\t"
15		 "nop\n\t"
16		 ".pushsection __jump_table,  \"aw\"\n\t"
17		 ".align 4\n\t"
18		 ".word 1b, %l[l_yes], %c0\n\t"
19		 ".popsection \n\t"
20		 : :  "i" (&((char *)key)[branch]) : : l_yes);
21
22	return false;
23l_yes:
24	return true;
25}
26
27static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
28{
29	asm goto("1:\n\t"
30		 "b %l[l_yes]\n\t"
31		 "nop\n\t"
32		 ".pushsection __jump_table,  \"aw\"\n\t"
33		 ".align 4\n\t"
34		 ".word 1b, %l[l_yes], %c0\n\t"
35		 ".popsection \n\t"
36		 : :  "i" (&((char *)key)[branch]) : : l_yes);
37
38	return false;
39l_yes:
40	return true;
41}
42
43typedef u32 jump_label_t;
44
45struct jump_entry {
46	jump_label_t code;
47	jump_label_t target;
48	jump_label_t key;
49};
50
51#endif  /* __ASSEMBLY__ */
52#endif