45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
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/*
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* Just-In-Time compiler for BPF filters on MIPS
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*
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* Copyright (c) 2014 Imagination Technologies Ltd.
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* Author: Markos Chandras <markos.chandras@imgtec.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; version 2 of the License.
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*/
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#ifndef BPF_JIT_MIPS_OP_H
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#define BPF_JIT_MIPS_OP_H
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/* Registers used by JIT */
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#define MIPS_R_ZERO 0
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#define MIPS_R_V0 2
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#define MIPS_R_V1 3
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#define MIPS_R_A0 4
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#define MIPS_R_A1 5
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#define MIPS_R_T6 14
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#define MIPS_R_T7 15
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#define MIPS_R_S0 16
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#define MIPS_R_S1 17
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#define MIPS_R_S2 18
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#define MIPS_R_S3 19
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#define MIPS_R_S4 20
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#define MIPS_R_S5 21
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#define MIPS_R_S6 22
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#define MIPS_R_S7 23
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#define MIPS_R_SP 29
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#define MIPS_R_RA 31
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/* Conditional codes */
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#define MIPS_COND_EQ 0x1
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#define MIPS_COND_GE (0x1 << 1)
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#define MIPS_COND_GT (0x1 << 2)
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#define MIPS_COND_NE (0x1 << 3)
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#define MIPS_COND_ALL (0x1 << 4)
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/* Conditionals on X register or K immediate */
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#define MIPS_COND_X (0x1 << 5)
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#define MIPS_COND_K (0x1 << 6)
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#endif /* BPF_JIT_MIPS_OP_H */
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