target/loongarch: move translate modules to tcg/

Introduce the target/loongarch/tcg directory. Its purpose is to hold the TCG
code that is selected by CONFIG_TCG

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240102020200.3462097-2-gaosong@loongson.cn>

target/loongarch/meson.build

@@ -5,29 +5,16 @@ loongarch_ss.add(files(
   'cpu.c',
   'gdbstub.c',
 ))
-loongarch_tcg_ss = ss.source_set()
-loongarch_tcg_ss.add(gen)
-loongarch_tcg_ss.add(files(
-  'fpu_helper.c',
-  'op_helper.c',
-  'translate.c',
-  'vec_helper.c',
-))
-loongarch_tcg_ss.add(zlib)
 
 loongarch_system_ss = ss.source_set()
 loongarch_system_ss.add(files(
   'loongarch-qmp-cmds.c',
   'machine.c',
-  'tlb_helper.c',
-  'constant_timer.c',
-  'csr_helper.c',
-  'iocsr_helper.c',
 ))
 
 common_ss.add(when: 'CONFIG_LOONGARCH_DIS', if_true: [files('disas.c'), gen])
 
-loongarch_ss.add_all(when: 'CONFIG_TCG', if_true: [loongarch_tcg_ss])
+subdir('tcg')
 
 target_arch += {'loongarch': loongarch_ss}
 target_system_arch += {'loongarch': loongarch_system_ss}

target/loongarch/tcg/meson.build

@@ -0,0 +1,19 @@
+if 'CONFIG_TCG' not in config_all_accel
+  subdir_done()
+endif
+
+loongarch_ss.add([zlib, gen])
+
+loongarch_ss.add(files(
+  'fpu_helper.c',
+  'op_helper.c',
+  'translate.c',
+  'vec_helper.c',
+))
+
+loongarch_system_ss.add(files(
+  'constant_timer.c',
+  'csr_helper.c',
+  'iocsr_helper.c',
+  'tlb_helper.c',
+))