cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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inst.c (960B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
      4 */
      5#include <asm/inst.h>
      6
      7u32 larch_insn_gen_lu32id(enum loongarch_gpr rd, int imm)
      8{
      9	union loongarch_instruction insn;
     10
     11	insn.reg1i20_format.opcode = lu32id_op;
     12	insn.reg1i20_format.rd = rd;
     13	insn.reg1i20_format.immediate = imm;
     14
     15	return insn.word;
     16}
     17
     18u32 larch_insn_gen_lu52id(enum loongarch_gpr rd, enum loongarch_gpr rj, int imm)
     19{
     20	union loongarch_instruction insn;
     21
     22	insn.reg2i12_format.opcode = lu52id_op;
     23	insn.reg2i12_format.rd = rd;
     24	insn.reg2i12_format.rj = rj;
     25	insn.reg2i12_format.immediate = imm;
     26
     27	return insn.word;
     28}
     29
     30u32 larch_insn_gen_jirl(enum loongarch_gpr rd, enum loongarch_gpr rj, unsigned long pc, unsigned long dest)
     31{
     32	union loongarch_instruction insn;
     33
     34	insn.reg2i16_format.opcode = jirl_op;
     35	insn.reg2i16_format.rd = rd;
     36	insn.reg2i16_format.rj = rj;
     37	insn.reg2i16_format.immediate = (dest - pc) >> 2;
     38
     39	return insn.word;
     40}