| Bernd Schmidt | 7adfb58 | 2007-06-21 11:34:16 +0800 | [diff] [blame] | 1 | /* This file defines the fixed addresses where userspace programs can find |
| 2 | atomic code sequences. */ |
| 3 | |
| Mike Frysinger | 3c012ee | 2008-08-14 14:36:15 +0800 | [diff] [blame] | 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 | |
| Bernd Schmidt | 7adfb58 | 2007-06-21 11:34:16 +0800 | [diff] [blame] | 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 | |
| Robin Getz | 9f336a5 | 2007-10-29 18:23:28 +0800 | [diff] [blame] | 42 | #define SAFE_USER_INSTRUCTION 0x480 |
| 43 | |
| 44 | #define FIXED_CODE_END 0x490 |
| Mike Frysinger | 3c012ee | 2008-08-14 14:36:15 +0800 | [diff] [blame] | 45 | |
| 46 | #endif |