1 files changed, 68 insertions, 0 deletions
diff --git a/target/loongarch/tcg/iocsr_helper.c b/target/loongarch/tcg/iocsr_helper.c
new file mode 100644
index 0000000000..b6916f53d2
--- /dev/null
+++ b/target/loongarch/tcg/iocsr_helper.c
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2021 Loongson Technology Corporation Limited
+ *
+ * Helpers for IOCSR reads/writes
+ */
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "qemu/host-utils.h"
+#include "exec/helper-proto.h"
+#include "exec/exec-all.h"
+#include "exec/cpu_ldst.h"
+
+#define GET_MEMTXATTRS(cas) \
+        ((MemTxAttrs){.requester_id = env_cpu(cas)->cpu_index})
+
+uint64_t helper_iocsrrd_b(CPULoongArchState *env, target_ulong r_addr)
+{
+    return address_space_ldub(env->address_space_iocsr, r_addr,
+                              GET_MEMTXATTRS(env), NULL);
+}
+
+uint64_t helper_iocsrrd_h(CPULoongArchState *env, target_ulong r_addr)
+{
+    return address_space_lduw(env->address_space_iocsr, r_addr,
+                              GET_MEMTXATTRS(env), NULL);
+}
+
+uint64_t helper_iocsrrd_w(CPULoongArchState *env, target_ulong r_addr)
+{
+    return address_space_ldl(env->address_space_iocsr, r_addr,
+                             GET_MEMTXATTRS(env), NULL);
+}
+
+uint64_t helper_iocsrrd_d(CPULoongArchState *env, target_ulong r_addr)
+{
+    return address_space_ldq(env->address_space_iocsr, r_addr,
+                             GET_MEMTXATTRS(env), NULL);
+}
+
+void helper_iocsrwr_b(CPULoongArchState *env, target_ulong w_addr,
+                      target_ulong val)
+{
+    address_space_stb(env->address_space_iocsr, w_addr,
+                      val, GET_MEMTXATTRS(env), NULL);
+}
+
+void helper_iocsrwr_h(CPULoongArchState *env, target_ulong w_addr,
+                      target_ulong val)
+{
+    address_space_stw(env->address_space_iocsr, w_addr,
+                      val, GET_MEMTXATTRS(env), NULL);
+}
+
+void helper_iocsrwr_w(CPULoongArchState *env, target_ulong w_addr,
+                      target_ulong val)
+{
+    address_space_stl(env->address_space_iocsr, w_addr,
+                      val, GET_MEMTXATTRS(env), NULL);
+}
+
+void helper_iocsrwr_d(CPULoongArchState *env, target_ulong w_addr,
+                      target_ulong val)
+{
+    address_space_stq(env->address_space_iocsr, w_addr,
+                      val, GET_MEMTXATTRS(env), NULL);
+}