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| author | Ingo Molnar <mingo@elte.hu> | 2008-09-10 08:35:40 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-10 08:35:40 +0200 |
| commit | 429b022af41108f6942d72547592b1d30e9a51f0 (patch) | |
| tree | 7d68355529718018cdad1241285816c6f64620b2 /arch/blackfin/include/asm/fixed_code.h | |
| parent | 0cd418ddb1ee88df7d16d5df06cb2da68eceb9e4 (diff) | |
| parent | adee14b2e1557d0a8559f29681732d05a89dfc35 (diff) | |
Merge commit 'v2.6.27-rc6' into core/rcu
Diffstat (limited to 'arch/blackfin/include/asm/fixed_code.h')
| -rw-r--r-- | arch/blackfin/include/asm/fixed_code.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/fixed_code.h b/arch/blackfin/include/asm/fixed_code.h new file mode 100644 index 00000000000..32c4d495d84 --- /dev/null +++ b/arch/blackfin/include/asm/fixed_code.h @@ -0,0 +1,46 @@ +/* This file defines the fixed addresses where userspace programs can find + atomic code sequences. */ + +#ifndef __BFIN_ASM_FIXED_CODE_H__ +#define __BFIN_ASM_FIXED_CODE_H__ + +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ +#include <linux/linkage.h> +#include <linux/ptrace.h> +extern asmlinkage void finish_atomic_sections(struct pt_regs *regs); +extern char fixed_code_start; +extern char fixed_code_end; +extern int atomic_xchg32(void); +extern int atomic_cas32(void); +extern int atomic_add32(void); +extern int atomic_sub32(void); +extern int atomic_ior32(void); +extern int atomic_and32(void); +extern int atomic_xor32(void); +extern void safe_user_instruction(void); +extern void sigreturn_stub(void); +#endif +#endif + +#define FIXED_CODE_START 0x400 + +#define SIGRETURN_STUB 0x400 + +#define ATOMIC_SEQS_START 0x410 + +#define ATOMIC_XCHG32 0x410 +#define ATOMIC_CAS32 0x420 +#define ATOMIC_ADD32 0x430 +#define ATOMIC_SUB32 0x440 +#define ATOMIC_IOR32 0x450 +#define ATOMIC_AND32 0x460 +#define ATOMIC_XOR32 0x470 + +#define ATOMIC_SEQS_END 0x480 + +#define SAFE_USER_INSTRUCTION 0x480 + +#define FIXED_CODE_END 0x490 + +#endif |