forked from Minki/linux
94bb0c1ab2
In order not to be left behind, we add jump label support for MIPS. Tested on 64-bit big endian (Octeon), and 32-bit little endian (malta/qemu). Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jason Baron <jbaron@redhat.com> Patchwork: https://patchwork.linux-mips.org/patch/1923/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
49 lines
956 B
C
49 lines
956 B
C
/*
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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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#define JUMP_LABEL(key, label) \
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do { \
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asm goto("1:\tnop\n\t" \
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"nop\n\t" \
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".pushsection __jump_table, \"a\"\n\t" \
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WORD_INSN " 1b, %l[" #label "], %0\n\t" \
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".popsection\n\t" \
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: : "i" (key) : : label); \
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} while (0)
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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 */
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