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