target/loongarch/tcg/iocsr_helper.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (c) 2021 Loongson Technology Corporation Limited
   4  *
   5  * Helpers for IOCSR reads/writes
   6  */
   7
   8 #include "qemu/osdep.h"
   9 #include "cpu.h"
  10 #include "qemu/host-utils.h"
  11 #include "exec/helper-proto.h"
  12 #include "exec/exec-all.h"
  13 #include "exec/cpu_ldst.h"
  14
  15 #define GET_MEMTXATTRS(cas) \
  16         ((MemTxAttrs){.requester_id = env_cpu(cas)->cpu_index})
  17
  18 uint64_t helper_iocsrrd_b(CPULoongArchState *env, target_ulong r_addr)
  19 {
  20     return address_space_ldub(&env->address_space_iocsr, r_addr,
  21                               GET_MEMTXATTRS(env), NULL);
  22 }
  23
  24 uint64_t helper_iocsrrd_h(CPULoongArchState *env, target_ulong r_addr)
  25 {
  26     return address_space_lduw(&env->address_space_iocsr, r_addr,
  27                               GET_MEMTXATTRS(env), NULL);
  28 }
  29
  30 uint64_t helper_iocsrrd_w(CPULoongArchState *env, target_ulong r_addr)
  31 {
  32     return address_space_ldl(&env->address_space_iocsr, r_addr,
  33                              GET_MEMTXATTRS(env), NULL);
  34 }
  35
  36 uint64_t helper_iocsrrd_d(CPULoongArchState *env, target_ulong r_addr)
  37 {
  38     return address_space_ldq(&env->address_space_iocsr, r_addr,
  39                              GET_MEMTXATTRS(env), NULL);
  40 }
  41
  42 void helper_iocsrwr_b(CPULoongArchState *env, target_ulong w_addr,
  43                       target_ulong val)
  44 {
  45     address_space_stb(&env->address_space_iocsr, w_addr,
  46                       val, GET_MEMTXATTRS(env), NULL);
  47 }
  48
  49 void helper_iocsrwr_h(CPULoongArchState *env, target_ulong w_addr,
  50                       target_ulong val)
  51 {
  52     address_space_stw(&env->address_space_iocsr, w_addr,
  53                       val, GET_MEMTXATTRS(env), NULL);
  54 }
  55
  56 void helper_iocsrwr_w(CPULoongArchState *env, target_ulong w_addr,
  57                       target_ulong val)
  58 {
  59     address_space_stl(&env->address_space_iocsr, w_addr,
  60                       val, GET_MEMTXATTRS(env), NULL);
  61 }
  62
  63 void helper_iocsrwr_d(CPULoongArchState *env, target_ulong w_addr,
  64                       target_ulong val)
  65 {
  66     address_space_stq(&env->address_space_iocsr, w_addr,
  67                       val, GET_MEMTXATTRS(env), NULL);
  68 }