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authorLeon Alrae <leon.alrae@imgtec.com>2016-03-15 09:59:31 +0000
committerLeon Alrae <leon.alrae@imgtec.com>2016-03-30 09:13:59 +0100
commit2edd5261fffcc8494936d353ffffe996d191da3b (patch)
tree7ebf59fda5c336be17eb6b056b99235d57520c94 /hw/mips
parent1f93a6e4f3f4da3c2ce4be1d300dcfe3e6dd0e77 (diff)
hw/mips/cps: create CPC block inside CPS
Create Cluster Power Controller and add a link to the CPC MemoryRegion in GCR. Guest can enable / map CPC to any physical address by writing to the memory-mapped GCR_CPC_BASE register. Set vp-start-reset property to 1 to allow only first VP to run from reset. Others are brought up by the guest via CPC memory-mapped registers. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Diffstat (limited to 'hw/mips')
-rw-r--r--hw/mips/cps.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/hw/mips/cps.c b/hw/mips/cps.c
index e77b1da507..d46547cd78 100644
--- a/hw/mips/cps.c
+++ b/hw/mips/cps.c
@@ -82,6 +82,21 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
cpu = MIPS_CPU(first_cpu);
env = &cpu->env;
+ /* Cluster Power Controller */
+ object_initialize(&s->cpc, sizeof(s->cpc), TYPE_MIPS_CPC);
+ qdev_set_parent_bus(DEVICE(&s->cpc), sysbus_get_default());
+
+ object_property_set_int(OBJECT(&s->cpc), s->num_vp, "num-vp", &err);
+ object_property_set_int(OBJECT(&s->cpc), 1, "vp-start-running", &err);
+ object_property_set_bool(OBJECT(&s->cpc), true, "realized", &err);
+ if (err != NULL) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ memory_region_add_subregion(&s->container, 0,
+ sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->cpc), 0));
+
/* Global Configuration Registers */
gcr_base = env->CP0_CMGCRBase << 4;
@@ -91,6 +106,7 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
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_link(OBJECT(&s->gcr), OBJECT(&s->cpc.mr), "cpc", &err);
object_property_set_bool(OBJECT(&s->gcr), true, "realized", &err);
if (err != NULL) {
error_propagate(errp, err);