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Diffstat (limited to 'arch/mips/net/bpf_jit.h')
| -rw-r--r-- | arch/mips/net/bpf_jit.h | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/arch/mips/net/bpf_jit.h b/arch/mips/net/bpf_jit.h deleted file mode 100644 index 166ca06c9da9..000000000000 --- a/arch/mips/net/bpf_jit.h +++ /dev/null @@ -1,81 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Just-In-Time compiler for BPF filters on MIPS - * - * Copyright (c) 2014 Imagination Technologies Ltd. - * Author: Markos Chandras <markos.chandras@imgtec.com> - */ - -#ifndef BPF_JIT_MIPS_OP_H -#define BPF_JIT_MIPS_OP_H - -/* Registers used by JIT */ -#define MIPS_R_ZERO 0 -#define MIPS_R_V0 2 -#define MIPS_R_A0 4 -#define MIPS_R_A1 5 -#define MIPS_R_T4 12 -#define MIPS_R_T5 13 -#define MIPS_R_T6 14 -#define MIPS_R_T7 15 -#define MIPS_R_S0 16 -#define MIPS_R_S1 17 -#define MIPS_R_S2 18 -#define MIPS_R_S3 19 -#define MIPS_R_S4 20 -#define MIPS_R_S5 21 -#define MIPS_R_S6 22 -#define MIPS_R_S7 23 -#define MIPS_R_SP 29 -#define MIPS_R_RA 31 - -/* Conditional codes */ -#define MIPS_COND_EQ 0x1 -#define MIPS_COND_GE (0x1 << 1) -#define MIPS_COND_GT (0x1 << 2) -#define MIPS_COND_NE (0x1 << 3) -#define MIPS_COND_ALL (0x1 << 4) -/* Conditionals on X register or K immediate */ -#define MIPS_COND_X (0x1 << 5) -#define MIPS_COND_K (0x1 << 6) - -#define r_ret MIPS_R_V0 - -/* - * Use 2 scratch registers to avoid pipeline interlocks. - * There is no overhead during epilogue and prologue since - * any of the $s0-$s6 registers will only be preserved if - * they are going to actually be used. - */ -#define r_skb_hl MIPS_R_S0 /* skb header length */ -#define r_skb_data MIPS_R_S1 /* skb actual data */ -#define r_off MIPS_R_S2 -#define r_A MIPS_R_S3 -#define r_X MIPS_R_S4 -#define r_skb MIPS_R_S5 -#define r_M MIPS_R_S6 -#define r_skb_len MIPS_R_S7 -#define r_s0 MIPS_R_T4 /* scratch reg 1 */ -#define r_s1 MIPS_R_T5 /* scratch reg 2 */ -#define r_tmp_imm MIPS_R_T6 /* No need to preserve this */ -#define r_tmp MIPS_R_T7 /* No need to preserve this */ -#define r_zero MIPS_R_ZERO -#define r_sp MIPS_R_SP -#define r_ra MIPS_R_RA - -#ifndef __ASSEMBLY__ - -/* Declare ASM helpers */ - -#define DECLARE_LOAD_FUNC(func) \ - extern u8 func(unsigned long *skb, int offset); \ - extern u8 func##_negative(unsigned long *skb, int offset); \ - extern u8 func##_positive(unsigned long *skb, int offset) - -DECLARE_LOAD_FUNC(sk_load_word); -DECLARE_LOAD_FUNC(sk_load_half); -DECLARE_LOAD_FUNC(sk_load_byte); - -#endif - -#endif /* BPF_JIT_MIPS_OP_H */ |