Release 4.14 arch/mips/include/asm/jump_label.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (c) 2010 Cavium Networks, Inc.
 */
#ifndef _ASM_MIPS_JUMP_LABEL_H

#define _ASM_MIPS_JUMP_LABEL_H

#ifndef __ASSEMBLY__

#include <linux/types.h>


#define JUMP_LABEL_NOP_SIZE 4

#ifdef CONFIG_64BIT

#define WORD_INSN ".dword"
#else

#define WORD_INSN ".word"
#endif

#ifdef CONFIG_CPU_MICROMIPS

#define NOP_INSN "nop32"
#else

#define NOP_INSN "nop"
#endif



static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
{
	asm_volatile_goto("1:\t" NOP_INSN "\n\t"
		"nop\n\t"
		".pushsection __jump_table,  \"aw\"\n\t"
		WORD_INSN " 1b, %l[l_yes], %0\n\t"
		".popsection\n\t"
		: :  "i" (&((char *)key)[branch]) : : l_yes);

	return false;
l_yes:
	return true;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Peter Zijlstra
27
50.00%
1
16.67%
Ingo Molnar
12
22.22%
2
33.33%
Jason Baron
9
16.67%
1
16.67%
Maciej W. Rozycki
3
5.56%
1
16.67%
David Daney
3
5.56%
1
16.67%
Total
54
100.00%
6
100.00%



static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
{
	asm_volatile_goto("1:\tj %l[l_yes]\n\t"
		"nop\n\t"
		".pushsection __jump_table,  \"aw\"\n\t"
		WORD_INSN " 1b, %l[l_yes], %0\n\t"
		".popsection\n\t"
		: :  "i" (&((char *)key)[branch]) : : l_yes);

	return false;
l_yes:
	return true;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Peter Zijlstra
38
73.08%
1
33.33%
Jason Baron
8
15.38%
1
33.33%
Ingo Molnar
6
11.54%
1
33.33%
Total
52
100.00%
3
100.00%

#ifdef CONFIG_64BIT

typedef u64 jump_label_t;
#else

typedef u32 jump_label_t;
#endif


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

#endif  /* __ASSEMBLY__ */
#endif /* _ASM_MIPS_JUMP_LABEL_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Peter Zijlstra
65
34.57%
1
14.29%
David Daney
62
32.98%
1
14.29%
Ingo Molnar
20
10.64%
2
28.57%
Maciej W. Rozycki
18
9.57%
1
14.29%
Jason Baron
17
9.04%
1
14.29%
Anton Blanchard
6
3.19%
1
14.29%
Total
188
100.00%
7
100.00%
Directory: arch/mips/include/asm

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