From a9bd9b5a8682c8129b46ae0e673efdad35f493c2 Mon Sep 17 00:00:00 2001
From: Leon Alrae <leon.alrae@imgtec.com>
Date: Tue, 15 Mar 2016 09:59:29 +0000
Subject: [PATCH] hw/mips/cps: create GCR block inside CPS

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
---
 hw/mips/cps.c         | 23 +++++++++++++++++++++++
 include/hw/mips/cps.h |  2 ++
 2 files changed, 25 insertions(+)

diff --git a/hw/mips/cps.c b/hw/mips/cps.c
index a74df46..e77b1da 100644
--- a/hw/mips/cps.c
+++ b/hw/mips/cps.c
@@ -62,6 +62,8 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
     CPUMIPSState *env;
     MIPSCPU *cpu;
     int i;
+    Error *err = NULL;
+    target_ulong gcr_base;
 
     for (i = 0; i < s->num_vp; i++) {
         cpu = cpu_mips_init(s->cpu_model);
@@ -76,6 +78,27 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
         cpu_mips_clock_init(env);
         qemu_register_reset(main_cpu_reset, cpu);
     }
+
+    cpu = MIPS_CPU(first_cpu);
+    env = &cpu->env;
+
+    /* Global Configuration Registers */
+    gcr_base = env->CP0_CMGCRBase << 4;
+
+    object_initialize(&s->gcr, sizeof(s->gcr), TYPE_MIPS_GCR);
+    qdev_set_parent_bus(DEVICE(&s->gcr), sysbus_get_default());
+
+    object_property_set_int(OBJECT(&s->gcr), s->num_vp, "num-vp", &err);
+    object_property_set_int(OBJECT(&s->gcr), 0x800, "gcr-rev", &err);
+    object_property_set_int(OBJECT(&s->gcr), gcr_base, "gcr-base", &err);
+    object_property_set_bool(OBJECT(&s->gcr), true, "realized", &err);
+    if (err != NULL) {
+        error_propagate(errp, err);
+        return;
+    }
+
+    memory_region_add_subregion(&s->container, gcr_base,
+                            sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->gcr), 0));
 }
 
 static Property mips_cps_properties[] = {
diff --git a/include/hw/mips/cps.h b/include/hw/mips/cps.h
index fb3528a..1b200d6 100644
--- a/include/hw/mips/cps.h
+++ b/include/hw/mips/cps.h
@@ -21,6 +21,7 @@
 #define MIPS_CPS_H
 
 #include "hw/sysbus.h"
+#include "hw/misc/mips_cmgcr.h"
 
 #define TYPE_MIPS_CPS "mips-cps"
 #define MIPS_CPS(obj) OBJECT_CHECK(MIPSCPSState, (obj), TYPE_MIPS_CPS)
@@ -33,6 +34,7 @@ typedef struct MIPSCPSState {
     char *cpu_model;
 
     MemoryRegion container;
+    MIPSGCRState gcr;
 } MIPSCPSState;
 
 qemu_irq get_cps_irq(MIPSCPSState *cps, int pin_number);
-- 
2.7.4