summaryrefslogtreecommitdiff
path: root/arch/blackfin/include/asm/fixed_code.h
blob: 73fe53e7fd2417f6fdd18f01b32c10c02ce81a9f (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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
/*
 * This file defines the fixed addresses where userspace programs
 * can find atomic code sequences.
 *
 * Copyright 2007-2008 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#ifndef __BFIN_ASM_FIXED_CODE_H__
#define __BFIN_ASM_FIXED_CODE_H__

#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <linux/linkage.h>
#include <linux/ptrace.h>
extern asmlinkage void finish_atomic_sections(struct pt_regs *regs);
extern char fixed_code_start;
extern char fixed_code_end;
extern int atomic_xchg32(void);
extern int atomic_cas32(void);
extern int atomic_add32(void);
extern int atomic_sub32(void);
extern int atomic_ior32(void);
extern int atomic_and32(void);
extern int atomic_xor32(void);
extern void safe_user_instruction(void);
extern void sigreturn_stub(void);
#endif
#endif

#define FIXED_CODE_START	0x400

#define SIGRETURN_STUB		0x400

#define ATOMIC_SEQS_START	0x410

#define ATOMIC_XCHG32		0x410
#define ATOMIC_CAS32		0x420
#define ATOMIC_ADD32		0x430
#define ATOMIC_SUB32		0x440
#define ATOMIC_IOR32		0x450
#define ATOMIC_AND32		0x460
#define ATOMIC_XOR32		0x470

#define ATOMIC_SEQS_END		0x480

#define SAFE_USER_INSTRUCTION   0x480

#define FIXED_CODE_END		0x490

#endif