target/loongarch: Add LA v1.1 instructions to max cpu

Add LA v1.1 new instructinos to max cpu by enabling new features in
CPUCFG2.

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>

target/loongarch/cpu.c

@@ -417,7 +417,16 @@ static void loongarch_max_initfn(Object *obj)
     if (tcg_enabled()) {
         cpu->env.cpucfg[1] = FIELD_DP32(cpu->env.cpucfg[1], CPUCFG1, MSG_INT, 1);
         cpu->msgint = ON_OFF_AUTO_AUTO;
-        cpu->env.cpucfg[2] = FIELD_DP32(cpu->env.cpucfg[2], CPUCFG2, HPTW, 1);
+
+        uint32_t data = cpu->env.cpucfg[2];
+        data = FIELD_DP32(data, CPUCFG2, HPTW, 1);
+        /* Enable LA v1.1 instructions */
+        data = FIELD_DP32(data, CPUCFG2, FRECIPE, 1);
+        data = FIELD_DP32(data, CPUCFG2, LAM_BH, 1);
+        data = FIELD_DP32(data, CPUCFG2, LAMCAS, 1);
+        data = FIELD_DP32(data, CPUCFG2, LLACQ_SCREL, 1);
+        data = FIELD_DP32(data, CPUCFG2, SCQ, 1);
+        cpu->env.cpucfg[2] = data;
     }
 }