1 /*
2  * Loongson CSR instructions translation routines
3  *
4  *  Copyright (c) 2023 Jiaxun Yang <jiaxun.yang@flygoat.com>
5  *
6  * SPDX-License-Identifier: GPL-2.0-or-later
7  */
8 
9 #include "qemu/osdep.h"
10 #include "cpu.h"
11 #include "internal.h"
12 #include "qemu/host-utils.h"
13 #include "exec/helper-proto.h"
14 #include "exec/exec-all.h"
15 
16 #define GET_MEMTXATTRS(cas) \
17         ((MemTxAttrs){.requester_id = env_cpu(cas)->cpu_index})
18 
19 uint64_t helper_lcsr_rdcsr(CPUMIPSState *env, target_ulong r_addr)
20 {
21     return address_space_ldl(&env->iocsr.as, r_addr,
22                              GET_MEMTXATTRS(env), NULL);
23 }
24 
25 uint64_t helper_lcsr_drdcsr(CPUMIPSState *env, target_ulong r_addr)
26 {
27     return address_space_ldq(&env->iocsr.as, r_addr,
28                              GET_MEMTXATTRS(env), NULL);
29 }
30 
31 void helper_lcsr_wrcsr(CPUMIPSState *env, target_ulong w_addr,
32                       target_ulong val)
33 {
34     address_space_stl(&env->iocsr.as, w_addr,
35                       val, GET_MEMTXATTRS(env), NULL);
36 }
37 
38 void helper_lcsr_dwrcsr(CPUMIPSState *env, target_ulong w_addr,
39                       target_ulong val)
40 {
41     address_space_stq(&env->iocsr.as, w_addr,
42                       val, GET_MEMTXATTRS(env), NULL);
43 }
44