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Viewing changes to arch/mips/include/asm/jump_label.h

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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arch/mips/include/asm/jump_label.h
 
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/*
 
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 * This file is subject to the terms and conditions of the GNU General Public
 
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 * License.  See the file "COPYING" in the main directory of this archive
 
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 * for more details.
 
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 *
 
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 * Copyright (c) 2010 Cavium Networks, Inc.
 
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 */
 
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#ifndef _ASM_MIPS_JUMP_LABEL_H
 
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#define _ASM_MIPS_JUMP_LABEL_H
 
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#include <linux/types.h>
 
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#ifdef __KERNEL__
 
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#define JUMP_LABEL_NOP_SIZE 4
 
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#ifdef CONFIG_64BIT
 
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#define WORD_INSN ".dword"
 
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#else
 
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#define WORD_INSN ".word"
 
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#endif
 
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static __always_inline bool arch_static_branch(struct jump_label_key *key)
 
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{
 
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        asm goto("1:\tnop\n\t"
 
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                "nop\n\t"
 
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                ".pushsection __jump_table,  \"aw\"\n\t"
 
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                WORD_INSN " 1b, %l[l_yes], %0\n\t"
 
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                ".popsection\n\t"
 
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                : :  "i" (key) : : l_yes);
 
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        return false;
 
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l_yes:
 
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        return true;
 
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}
 
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#endif /* __KERNEL__ */
 
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#ifdef CONFIG_64BIT
 
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typedef u64 jump_label_t;
 
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#else
 
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typedef u32 jump_label_t;
 
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#endif
 
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struct jump_entry {
 
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        jump_label_t code;
 
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        jump_label_t target;
 
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        jump_label_t key;
 
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};
 
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#endif /* _ASM_MIPS_JUMP_LABEL_H */