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Diffstat (limited to 'arch/blackfin/include/asm/fixed_code.h')
-rw-r--r--arch/blackfin/include/asm/fixed_code.h46
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 000000000000..32c4d495d847
--- /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