Linux kernel mirror (for testing)
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linux
1/*
2 * This file defines the fixed addresses where userspace programs
3 * can find atomic code sequences.
4 *
5 * Copyright 2007-2008 Analog Devices Inc.
6 *
7 * Licensed under the GPL-2 or later.
8 */
9
10#ifndef __BFIN_ASM_FIXED_CODE_H__
11#define __BFIN_ASM_FIXED_CODE_H__
12
13#ifdef __KERNEL__
14#ifndef __ASSEMBLY__
15#include <linux/linkage.h>
16#include <linux/ptrace.h>
17extern asmlinkage void finish_atomic_sections(struct pt_regs *regs);
18extern char fixed_code_start;
19extern char fixed_code_end;
20extern int atomic_xchg32(void);
21extern int atomic_cas32(void);
22extern int atomic_add32(void);
23extern int atomic_sub32(void);
24extern int atomic_ior32(void);
25extern int atomic_and32(void);
26extern int atomic_xor32(void);
27extern void safe_user_instruction(void);
28extern void sigreturn_stub(void);
29#endif
30#endif
31
32#ifndef CONFIG_PHY_RAM_BASE_ADDRESS
33#define CONFIG_PHY_RAM_BASE_ADDRESS 0x0
34#endif
35
36#define FIXED_CODE_START (CONFIG_PHY_RAM_BASE_ADDRESS + 0x400)
37
38#define SIGRETURN_STUB (CONFIG_PHY_RAM_BASE_ADDRESS + 0x400)
39
40#define ATOMIC_SEQS_START (CONFIG_PHY_RAM_BASE_ADDRESS + 0x410)
41
42#define ATOMIC_XCHG32 (CONFIG_PHY_RAM_BASE_ADDRESS + 0x410)
43#define ATOMIC_CAS32 (CONFIG_PHY_RAM_BASE_ADDRESS + 0x420)
44#define ATOMIC_ADD32 (CONFIG_PHY_RAM_BASE_ADDRESS + 0x430)
45#define ATOMIC_SUB32 (CONFIG_PHY_RAM_BASE_ADDRESS + 0x440)
46#define ATOMIC_IOR32 (CONFIG_PHY_RAM_BASE_ADDRESS + 0x450)
47#define ATOMIC_AND32 (CONFIG_PHY_RAM_BASE_ADDRESS + 0x460)
48#define ATOMIC_XOR32 (CONFIG_PHY_RAM_BASE_ADDRESS + 0x470)
49
50#define ATOMIC_SEQS_END (CONFIG_PHY_RAM_BASE_ADDRESS + 0x480)
51
52#define SAFE_USER_INSTRUCTION (CONFIG_PHY_RAM_BASE_ADDRESS + 0x480)
53
54#define FIXED_CODE_END (CONFIG_PHY_RAM_BASE_ADDRESS + 0x490)
55
56#endif