pseries: Move construction of /interrupt-controller fdt node

Currently the device tree node for the XICS interrupt controller is in
spapr_create_fdt_skel().  As part of consolidating device tree construction
to reset time, this moves it to a function called from spapr_build_fdt().

In addition we move the actual code into hw/intc/xics_spapr.c with the
rest of the PAPR specific interrupt controller code.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
index b4e55012e0..2e3f1c5e95 100644
--- a/hw/intc/xics_spapr.c
+++ b/hw/intc/xics_spapr.c
@@ -32,6 +32,7 @@
 #include "qemu/timer.h"
 #include "hw/ppc/spapr.h"
 #include "hw/ppc/xics.h"
+#include "hw/ppc/fdt.h"
 #include "qapi/visitor.h"
 #include "qapi/error.h"
 
@@ -449,6 +450,27 @@ void xics_spapr_free(XICSState *xics, int irq, int num)
     }
 }
 
+void spapr_dt_xics(XICSState *xics, void *fdt, uint32_t phandle)
+{
+    uint32_t interrupt_server_ranges_prop[] = {
+        0, cpu_to_be32(xics->nr_servers),
+    };
+    int node;
+
+    _FDT(node = fdt_add_subnode(fdt, 0, "interrupt-controller"));
+
+    _FDT(fdt_setprop_string(fdt, node, "device_type",
+                            "PowerPC-External-Interrupt-Presentation"));
+    _FDT(fdt_setprop_string(fdt, node, "compatible", "IBM,ppc-xicp"));
+    _FDT(fdt_setprop(fdt, node, "interrupt-controller", NULL, 0));
+    _FDT(fdt_setprop(fdt, node, "ibm,interrupt-server-ranges",
+                     interrupt_server_ranges_prop,
+                     sizeof(interrupt_server_ranges_prop)));
+    _FDT(fdt_setprop_cell(fdt, node, "#interrupt-cells", 2));
+    _FDT(fdt_setprop_cell(fdt, node, "linux,phandle", phandle));
+    _FDT(fdt_setprop_cell(fdt, node, "phandle", phandle));
+}
+
 static void xics_spapr_register_types(void)
 {
     type_register_static(&xics_spapr_info);