From: Bibo Mao <maobibo@loongson.cn>

In preparation to extract common IPI code in few commits,
extract loongson_ipi_common_realize().

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
[PMD: Extracted from bigger commit, added commit description]
Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Tested-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20240805180622.21001-3-philmd@linaro.org>
---
 hw/intc/loongson_ipi.c | 40 ++++++++++++++++++++++++++++------------
 1 file changed, 28 insertions(+), 12 deletions(-)

diff --git a/hw/intc/loongson_ipi.c b/hw/intc/loongson_ipi.c
index 903483ae80..8aab7e48e8 100644
--- a/hw/intc/loongson_ipi.c
+++ b/hw/intc/loongson_ipi.c
@@ -275,7 +275,7 @@ static const MemoryRegionOps loongson_ipi64_ops = {
     .endianness = DEVICE_LITTLE_ENDIAN,
 };
 
-static void loongson_ipi_realize(DeviceState *dev, Error **errp)
+static void loongson_ipi_common_realize(DeviceState *dev, Error **errp)
 {
     LoongsonIPIState *s = LOONGSON_IPI(dev);
     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
@@ -301,30 +301,46 @@ static void loongson_ipi_realize(DeviceState *dev, Error **errp)
     sysbus_init_mmio(sbd, &s->ipi64_iocsr_mem);
 
     s->cpu = g_new0(IPICore, s->num_cpu);
-    if (s->cpu == NULL) {
-        error_setg(errp, "Memory allocation for IPICore faile");
-        return;
-    }
-
     for (i = 0; i < s->num_cpu; i++) {
         s->cpu[i].ipi = s;
-        s->cpu[i].ipi_mmio_mem = g_new0(MemoryRegion, 1);
-        g_autofree char *name = g_strdup_printf("loongson_ipi_cpu%d_mmio", i);
-        memory_region_init_io(s->cpu[i].ipi_mmio_mem, OBJECT(dev),
-                              &loongson_ipi_core_ops, &s->cpu[i], name, 0x48);
-        sysbus_init_mmio(sbd, s->cpu[i].ipi_mmio_mem);
 
         qdev_init_gpio_out(dev, &s->cpu[i].irq, 1);
     }
 }
 
-static void loongson_ipi_unrealize(DeviceState *dev)
+static void loongson_ipi_realize(DeviceState *dev, Error **errp)
+{
+    LoongsonIPIState *s = LOONGSON_IPI(dev);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+    Error *local_err = NULL;
+
+    loongson_ipi_common_realize(dev, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return;
+    }
+
+    for (unsigned i = 0; i < s->num_cpu; i++) {
+        s->cpu[i].ipi_mmio_mem = g_new0(MemoryRegion, 1);
+        g_autofree char *name = g_strdup_printf("loongson_ipi_cpu%d_mmio", i);
+        memory_region_init_io(s->cpu[i].ipi_mmio_mem, OBJECT(dev),
+                              &loongson_ipi_core_ops, &s->cpu[i], name, 0x48);
+        sysbus_init_mmio(sbd, s->cpu[i].ipi_mmio_mem);
+    }
+}
+
+static void loongson_ipi_common_unrealize(DeviceState *dev)
 {
     LoongsonIPIState *s = LOONGSON_IPI(dev);
 
     g_free(s->cpu);
 }
 
+static void loongson_ipi_unrealize(DeviceState *dev)
+{
+    loongson_ipi_common_unrealize(dev);
+}
+
 static const VMStateDescription vmstate_ipi_core = {
     .name = "ipi-single",
     .version_id = 2,
-- 
2.45.2