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