ppc/xics: remove the XICSState classes

The XICSState classes are not used anymore. They have now been fully
deprecated by the XICSFabric QOM interface. Do the cleanups.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

hw/intc/xics.c

@@ -134,16 +134,6 @@ static void ics_simple_pic_print_info(InterruptStatsProvider *obj,
     }
 }
 
-/*
- * XICS Common class - parent for emulated XICS and KVM-XICS
- */
-static const TypeInfo xics_common_info = {
-    .name          = TYPE_XICS_COMMON,
-    .parent        = TYPE_DEVICE,
-    .instance_size = sizeof(XICSState),
-    .class_size    = sizeof(XICSStateClass),
-};
-
 /*
  * ICP: Presentation layer
  */
@@ -752,7 +742,6 @@ void ics_set_irq_type(ICSState *ics, int srcno, bool lsi)
 
 static void xics_register_types(void)
 {
-    type_register_static(&xics_common_info);
     type_register_static(&ics_simple_info);
     type_register_static(&ics_base_info);
     type_register_static(&icp_info);

hw/intc/xics_kvm.c

@@ -42,12 +42,6 @@
 
 static int kernel_xics_fd = -1;
 
-typedef struct KVMXICSState {
-    XICSState parent_obj;
-
-    int kernel_xics_fd;
-} KVMXICSState;
-
 /*
  * ICP-KVM
  */
@@ -429,15 +423,8 @@ fail:
     return -1;
 }
 
-static const TypeInfo xics_spapr_kvm_info = {
-    .name          = TYPE_XICS_SPAPR_KVM,
-    .parent        = TYPE_XICS_COMMON,
-    .instance_size = sizeof(KVMXICSState),
-};
-
 static void xics_kvm_register_types(void)
 {
-    type_register_static(&xics_spapr_kvm_info);
     type_register_static(&ics_kvm_info);
     type_register_static(&icp_kvm_info);
 }

hw/intc/xics_spapr.c

@@ -257,13 +257,6 @@ int xics_spapr_init(sPAPRMachineState *spapr, Error **errp)
     return 0;
 }
 
-static const TypeInfo xics_spapr_info = {
-    .name          = TYPE_XICS_SPAPR,
-    .parent        = TYPE_XICS_COMMON,
-    .instance_size = sizeof(XICSState),
-    .class_size = sizeof(XICSStateClass),
-};
-
 #define ICS_IRQ_FREE(ics, srcno)   \
     (!((ics)->irqs[(srcno)].flags & (XICS_FLAGS_IRQ_MASK)))
 
@@ -400,10 +393,3 @@ void spapr_dt_xics(int nr_servers, void *fdt, uint32_t phandle)
     _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);
-}
-
-type_init(xics_spapr_register_types)

hw/ppc/spapr.c

@@ -95,24 +95,15 @@
 
 #define HTAB_SIZE(spapr)        (1ULL << ((spapr)->htab_shift))
 
-static XICSState *try_create_xics(sPAPRMachineState *spapr,
+static int try_create_xics(sPAPRMachineState *spapr, const char *type_ics,
-                                  const char *type, const char *type_ics,
+                           const char *type_icp, int nr_servers,
-                                  const char *type_icp, int nr_servers,
+                           int nr_irqs, Error **errp)
-                                  int nr_irqs, Error **errp)
 {
     XICSFabric *xi = XICS_FABRIC(spapr);
     Error *err = NULL, *local_err = NULL;
-    XICSState *xics;
     ICSState *ics = NULL;
     int i;
 
-    xics = XICS_COMMON(object_new(type));
-    qdev_set_parent_bus(DEVICE(xics), sysbus_get_default());
-    object_property_set_bool(OBJECT(xics), true, "realized", &err);
-    if (err) {
-        goto error;
-    }
-
     ics = ICS_SIMPLE(object_new(type_ics));
     qdev_set_parent_bus(DEVICE(ics), sysbus_get_default());
     object_property_add_child(OBJECT(spapr), "ics", OBJECT(ics), NULL);
@@ -142,32 +133,30 @@ static XICSState *try_create_xics(sPAPRMachineState *spapr,
     }
 
     spapr->ics = ics;
-    return xics;
+    return 0;
 
 error:
     error_propagate(errp, err);
     if (ics) {
         object_unparent(OBJECT(ics));
     }
-    object_unparent(OBJECT(xics));
+    return -1;
-    return NULL;
 }
 
-static XICSState *xics_system_init(MachineState *machine,
+static int xics_system_init(MachineState *machine,
-                                   int nr_servers, int nr_irqs, Error **errp)
+                            int nr_servers, int nr_irqs, Error **errp)
 {
-    XICSState *xics = NULL;
+    int rc = -1;
 
     if (kvm_enabled()) {
         Error *err = NULL;
 
         if (machine_kernel_irqchip_allowed(machine) &&
             !xics_kvm_init(SPAPR_MACHINE(machine), errp)) {
-            xics = try_create_xics(SPAPR_MACHINE(machine),
+            rc = try_create_xics(SPAPR_MACHINE(machine), TYPE_ICS_KVM,
-                                   TYPE_XICS_SPAPR_KVM, TYPE_ICS_KVM,
+                                 TYPE_KVM_ICP, nr_servers, nr_irqs, &err);
-                                   TYPE_KVM_ICP, nr_servers, nr_irqs, &err);
         }
-        if (machine_kernel_irqchip_required(machine) && !xics) {
+        if (machine_kernel_irqchip_required(machine) && rc < 0) {
             error_reportf_err(err,
                               "kernel_irqchip requested but unavailable: ");
         } else {
@@ -175,14 +164,13 @@ static XICSState *xics_system_init(MachineState *machine,
         }
     }
 
-    if (!xics) {
+    if (rc < 0) {
         xics_spapr_init(SPAPR_MACHINE(machine), errp);
-        xics = try_create_xics(SPAPR_MACHINE(machine),
+        rc = try_create_xics(SPAPR_MACHINE(machine), TYPE_ICS_SIMPLE,
-                               TYPE_XICS_SPAPR, TYPE_ICS_SIMPLE,
                                TYPE_ICP, nr_servers, nr_irqs, errp);
     }
 
-    return xics;
+    return rc;
 }
 
 static int spapr_fixup_cpu_smt_dt(void *fdt, int offset, PowerPCCPU *cpu,
@@ -2003,9 +1991,8 @@ static void ppc_spapr_init(MachineState *machine)
     load_limit = MIN(spapr->rma_size, RTAS_MAX_ADDR) - FW_OVERHEAD;
 
     /* Set up Interrupt Controller before we create the VCPUs */
-    spapr->xics = xics_system_init(machine,
+    xics_system_init(machine, DIV_ROUND_UP(max_cpus * smt, smp_threads),
-                                   DIV_ROUND_UP(max_cpus * smt, smp_threads),
+                     XICS_IRQS_SPAPR, &error_fatal);
-                                   XICS_IRQS_SPAPR, &error_fatal);
 
     /* Set up containers for ibm,client-set-architecture negotiated options */
     spapr->ov5 = spapr_ovec_new();

include/hw/ppc/spapr.h

@@ -58,7 +58,6 @@ struct sPAPRMachineState {
     struct VIOsPAPRBus *vio_bus;
     QLIST_HEAD(, sPAPRPHBState) phbs;
     struct sPAPRNVRAM *nvram;
-    XICSState *xics;
     ICSState *ics;
     DeviceState *rtc;
 

include/hw/ppc/xics.h

@@ -30,29 +30,6 @@
 
 #include "hw/sysbus.h"
 
-#define TYPE_XICS_COMMON "xics-common"
-#define XICS_COMMON(obj) OBJECT_CHECK(XICSState, (obj), TYPE_XICS_COMMON)
-
-/*
- * Retain xics as the type name to be compatible for migration. Rest all the
- * functions, class and variables are renamed as xics_spapr.
- */
-#define TYPE_XICS_SPAPR "xics"
-#define XICS_SPAPR(obj) OBJECT_CHECK(XICSState, (obj), TYPE_XICS_SPAPR)
-
-#define TYPE_XICS_SPAPR_KVM "xics-spapr-kvm"
-#define XICS_SPAPR_KVM(obj) \
-     OBJECT_CHECK(KVMXICSState, (obj), TYPE_XICS_SPAPR_KVM)
-
-#define XICS_COMMON_CLASS(klass) \
-     OBJECT_CLASS_CHECK(XICSStateClass, (klass), TYPE_XICS_COMMON)
-#define XICS_SPAPR_CLASS(klass) \
-     OBJECT_CLASS_CHECK(XICSStateClass, (klass), TYPE_XICS_SPAPR)
-#define XICS_COMMON_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(XICSStateClass, (obj), TYPE_XICS_COMMON)
-#define XICS_SPAPR_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(XICSStateClass, (obj), TYPE_XICS_SPAPR)
-
 #define XICS_IPI        0x2
 #define XICS_BUID       0x1
 #define XICS_IRQ_BASE   (XICS_BUID << 12)
@@ -62,8 +39,6 @@
  * (the kernel implementation supports more but we don't exploit
  *  that yet)
  */
-typedef struct XICSStateClass XICSStateClass;
-typedef struct XICSState XICSState;
 typedef struct ICPStateClass ICPStateClass;
 typedef struct ICPState ICPState;
 typedef struct ICSStateClass ICSStateClass;
@@ -71,16 +46,6 @@ typedef struct ICSState ICSState;
 typedef struct ICSIRQState ICSIRQState;
 typedef struct XICSFabric XICSFabric;
 
-struct XICSStateClass {
-    DeviceClass parent_class;
-};
-
-struct XICSState {
-    /*< private >*/
-    DeviceState parent_obj;
-    /*< public >*/
-};
-
 #define TYPE_ICP "icp"
 #define ICP(obj) OBJECT_CHECK(ICPState, (obj), TYPE_ICP)