53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
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* This file defines the fixed addresses where userspace programs
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* can find atomic code sequences.
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*
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* Copyright 2007-2008 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef __BFIN_ASM_FIXED_CODE_H__
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#define __BFIN_ASM_FIXED_CODE_H__
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#ifdef __KERNEL__
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#ifndef __ASSEMBLY__
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#include <linux/linkage.h>
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#include <linux/ptrace.h>
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extern asmlinkage void finish_atomic_sections(struct pt_regs *regs);
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extern char fixed_code_start;
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extern char fixed_code_end;
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extern int atomic_xchg32(void);
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extern int atomic_cas32(void);
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extern int atomic_add32(void);
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extern int atomic_sub32(void);
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extern int atomic_ior32(void);
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extern int atomic_and32(void);
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extern int atomic_xor32(void);
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extern void safe_user_instruction(void);
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extern void sigreturn_stub(void);
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#endif
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#endif
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#define FIXED_CODE_START 0x400
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#define SIGRETURN_STUB 0x400
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#define ATOMIC_SEQS_START 0x410
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#define ATOMIC_XCHG32 0x410
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#define ATOMIC_CAS32 0x420
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#define ATOMIC_ADD32 0x430
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#define ATOMIC_SUB32 0x440
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#define ATOMIC_IOR32 0x450
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#define ATOMIC_AND32 0x460
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#define ATOMIC_XOR32 0x470
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#define ATOMIC_SEQS_END 0x480
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#define SAFE_USER_INSTRUCTION 0x480
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#define FIXED_CODE_END 0x490
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#endif
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