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 "qemu/main-loop.h"
11 #include "cpu.h"
12 #include "internal.h"
13 #include "qemu/host-utils.h"
14 #include "exec/helper-proto.h"
15 #include "exec/exec-all.h"
16 #include "exec/cpu_ldst.h"
17 
18 #define GET_MEMTXATTRS(cas) \
19         ((MemTxAttrs){.requester_id = env_cpu(cas)->cpu_index})
20 
21 uint64_t helper_lcsr_rdcsr(CPUMIPSState *env, target_ulong r_addr)
22 {
23     return address_space_ldl(&env->iocsr.as, r_addr,
24                              GET_MEMTXATTRS(env), NULL);
25 }
26 
27 uint64_t helper_lcsr_drdcsr(CPUMIPSState *env, target_ulong r_addr)
28 {
29     return address_space_ldq(&env->iocsr.as, r_addr,
30                              GET_MEMTXATTRS(env), NULL);
31 }
32 
33 void helper_lcsr_wrcsr(CPUMIPSState *env, target_ulong w_addr,
34                       target_ulong val)
35 {
36     address_space_stl(&env->iocsr.as, w_addr,
37                       val, GET_MEMTXATTRS(env), NULL);
38 }
39 
40 void helper_lcsr_dwrcsr(CPUMIPSState *env, target_ulong w_addr,
41                       target_ulong val)
42 {
43     address_space_stq(&env->iocsr.as, w_addr,
44                       val, GET_MEMTXATTRS(env), NULL);
45 }
46