[mirror_ubuntu-zesty-kernel.git] / arch / sparc / include / asm / jump_label.h

#ifndef _ASM_SPARC_JUMP_LABEL_H
#define _ASM_SPARC_JUMP_LABEL_H

#ifndef __ASSEMBLY__

#include <linux/types.h>

#define JUMP_LABEL_NOP_SIZE 4

static __always_inline bool arch_static_branch(struct static_key *key)
{
		asm_volatile_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;
}

typedef u32 jump_label_t;

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

#endif  /* __ASSEMBLY__ */
#endif
Commit	Line	Data
dff9d3c2 DM	1	#ifndef _ASM_SPARC_JUMP_LABEL_H
	2	#define _ASM_SPARC_JUMP_LABEL_H
	3
55dd0df7	4	#ifndef __ASSEMBLY__
dff9d3c2 DM	5
dff9d3c2 DM	6	#include <linux/types.h>
dff9d3c2 DM	7
	8	#define JUMP_LABEL_NOP_SIZE 4
	9
c5905afb	10	static __always_inline bool arch_static_branch(struct static_key *key)
d430d3d7	11	{
3f0116c3	12	asm_volatile_goto("1:\n\t"
d430d3d7 JB	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" (key) : : l_yes);
	20	return false;
	21	l_yes:
	22	return true;
	23	}
dff9d3c2	24
dff9d3c2 DM	25	typedef u32 jump_label_t;
	26
	27	struct jump_entry {
	28	jump_label_t code;
	29	jump_label_t target;
	30	jump_label_t key;
	31	};
	32
55dd0df7	33	#endif /* __ASSEMBLY__ */
dff9d3c2	34	#endif