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#define FIXED_CODE_START 0x400 33 34#define SIGRETURN_STUB 0x400 35 36#define ATOMIC_SEQS_START 0x410 37 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 45 46#define ATOMIC_SEQS_END 0x480 47 48#define SAFE_USER_INSTRUCTION 0x480 49 50#define FIXED_CODE_END 0x490 51 52#endif 53