2
* This file defines the fixed addresses where userspace programs
3
* can find atomic code sequences.
5
* Copyright 2007-2008 Analog Devices Inc.
7
* Licensed under the GPL-2 or later.
10
#ifndef __BFIN_ASM_FIXED_CODE_H__
11
#define __BFIN_ASM_FIXED_CODE_H__
15
#include <linux/linkage.h>
16
#include <linux/ptrace.h>
17
extern asmlinkage void finish_atomic_sections(struct pt_regs *regs);
18
extern char fixed_code_start;
19
extern char fixed_code_end;
20
extern int atomic_xchg32(void);
21
extern int atomic_cas32(void);
22
extern int atomic_add32(void);
23
extern int atomic_sub32(void);
24
extern int atomic_ior32(void);
25
extern int atomic_and32(void);
26
extern int atomic_xor32(void);
27
extern void safe_user_instruction(void);
28
extern void sigreturn_stub(void);
32
#define FIXED_CODE_START 0x400
34
#define SIGRETURN_STUB 0x400
36
#define ATOMIC_SEQS_START 0x410
38
#define ATOMIC_XCHG32 0x410
39
#define ATOMIC_CAS32 0x420
40
#define ATOMIC_ADD32 0x430
41
#define ATOMIC_SUB32 0x440
42
#define ATOMIC_IOR32 0x450
43
#define ATOMIC_AND32 0x460
44
#define ATOMIC_XOR32 0x470
46
#define ATOMIC_SEQS_END 0x480
48
#define SAFE_USER_INSTRUCTION 0x480
50
#define FIXED_CODE_END 0x490