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> 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); 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