arch/mips/net/bpf_jit.h

   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 */