1/* 2 * Just-In-Time compiler for BPF filters on MIPS 3 * 4 * Copyright (c) 2014 Imagination Technologies Ltd. 5 * Author: Markos Chandras <markos.chandras@imgtec.com> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; version 2 of the License. 10 */ 11 12#ifndef BPF_JIT_MIPS_OP_H 13#define BPF_JIT_MIPS_OP_H 14 15/* Registers used by JIT */ 16#define MIPS_R_ZERO 0 17#define MIPS_R_V0 2 18#define MIPS_R_V1 3 19#define MIPS_R_A0 4 20#define MIPS_R_A1 5 21#define MIPS_R_T6 14 22#define MIPS_R_T7 15 23#define MIPS_R_S0 16 24#define MIPS_R_S1 17 25#define MIPS_R_S2 18 26#define MIPS_R_S3 19 27#define MIPS_R_S4 20 28#define MIPS_R_S5 21 29#define MIPS_R_S6 22 30#define MIPS_R_S7 23 31#define MIPS_R_SP 29 32#define MIPS_R_RA 31 33 34/* Conditional codes */ 35#define MIPS_COND_EQ 0x1 36#define MIPS_COND_GE (0x1 << 1) 37#define MIPS_COND_GT (0x1 << 2) 38#define MIPS_COND_NE (0x1 << 3) 39#define MIPS_COND_ALL (0x1 << 4) 40/* Conditionals on X register or K immediate */ 41#define MIPS_COND_X (0x1 << 5) 42#define MIPS_COND_K (0x1 << 6) 43 44#endif /* BPF_JIT_MIPS_OP_H */ 45