summaryrefslogtreecommitdiffstats
path: root/arch/sparc/include/asm/jump_label.h
blob: 5080d16a832ffec0c813b30cf546340e5047a7fd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
#ifndef _ASM_SPARC_JUMP_LABEL_H
#define _ASM_SPARC_JUMP_LABEL_H

#ifdef __KERNEL__

#include <linux/types.h>

#define JUMP_LABEL_NOP_SIZE 4

static __always_inline bool arch_static_branch(struct static_key *key)
{
		asm goto("1:\n\t"
			 "nop\n\t"
			 "nop\n\t"
			 ".pushsection __jump_table,  \"aw\"\n\t"
			 ".align 4\n\t"
			 ".word 1b, %l[l_yes], %c0\n\t"
			 ".popsection \n\t"
			 : :  "i" (key) : : l_yes);
	return false;
l_yes:
	return true;
}

#endif /* __KERNEL__ */

typedef u32 jump_label_t;

struct jump_entry {
	jump_label_t code;
	jump_label_t target;
	jump_label_t key;
};

#endif
OpenPOWER on IntegriCloud