[Qemu-devel] [PATCH 20/27] ppc/pnv: add a OCC model class

[Cédric Le Goater]

It will ease the introduction of the OCC model for POWER9.

Signed-off-by: Cédric Le Goater <c...@kaod.org>
---
 include/hw/ppc/pnv_occ.h | 14 ++++++++++++++
 hw/ppc/pnv.c             |  2 +-
 hw/ppc/pnv_occ.c         | 23 ++++++++++++++++++++---
 3 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/include/hw/ppc/pnv_occ.h b/include/hw/ppc/pnv_occ.h
index 82f299dc76ff..ce2631e21f5e 100644
--- a/include/hw/ppc/pnv_occ.h
+++ b/include/hw/ppc/pnv_occ.h
@@ -23,6 +23,9 @@
 
 #define TYPE_PNV_OCC "pnv-occ"
 #define PNV_OCC(obj) OBJECT_CHECK(PnvOCC, (obj), TYPE_PNV_OCC)
+#define TYPE_PNV8_OCC TYPE_PNV_OCC "-POWER8"
+#define PNV8_OCC(obj) \
+    OBJECT_CHECK(PnvOCC, (obj), TYPE_PNV8_OCC)
 
 typedef struct PnvOCC {
     DeviceState xd;
@@ -35,4 +38,15 @@ typedef struct PnvOCC {
     MemoryRegion xscom_regs;
 } PnvOCC;
 
+#define PNV_OCC_CLASS(klass) \
+     OBJECT_CLASS_CHECK(PnvOCCClass, (klass), TYPE_PNV_OCC)
+#define PNV_OCC_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(PnvOCCClass, (obj), TYPE_PNV_OCC)
+
+typedef struct PnvOCCClass {
+    DeviceClass parent_class;
+
+    int xscom_size;
+} PnvOCCClass;
+
 #endif /* _PPC_PNV_OCC_H */
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 895be470af67..81ab53899dbc 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -808,7 +808,7 @@ static void pnv_chip_power8_instance_init(Object *obj)
                                    OBJECT(&chip8->psi), &error_abort);
 
     object_initialize_child(obj, "occ",  &chip8->occ, sizeof(chip8->occ),
-                            TYPE_PNV_OCC, &error_abort, NULL);
+                            TYPE_PNV8_OCC, &error_abort, NULL);
     object_property_add_const_link(OBJECT(&chip8->occ), "psi",
                                    OBJECT(&chip8->psi), &error_abort);
 }
diff --git a/hw/ppc/pnv_occ.c b/hw/ppc/pnv_occ.c
index 04880f26d612..a210f44926aa 100644
--- a/hw/ppc/pnv_occ.c
+++ b/hw/ppc/pnv_occ.c
@@ -54,7 +54,7 @@ static uint64_t pnv_occ_xscom_read(void *opaque, hwaddr addr, 
unsigned size)
         break;
     default:
         qemu_log_mask(LOG_UNIMP, "OCC Unimplemented register: Ox%"
-                      HWADDR_PRIx "\n", addr);
+                      HWADDR_PRIx "\n", addr >> 3);
     }
     return val;
 }
@@ -77,7 +77,7 @@ static void pnv_occ_xscom_write(void *opaque, hwaddr addr,
         break;
     default:
         qemu_log_mask(LOG_UNIMP, "OCC Unimplemented register: Ox%"
-                      HWADDR_PRIx "\n", addr);
+                      HWADDR_PRIx "\n", addr >> 3);
     }
 }
 
@@ -95,6 +95,7 @@ static const MemoryRegionOps pnv_occ_xscom_ops = {
 static void pnv_occ_realize(DeviceState *dev, Error **errp)
 {
     PnvOCC *occ = PNV_OCC(dev);
+    PnvOCCClass *poc = PNV_OCC_GET_CLASS(occ);
     Object *obj;
     Error *error = NULL;
 
@@ -111,9 +112,23 @@ static void pnv_occ_realize(DeviceState *dev, Error **errp)
 
     /* XScom region for OCC registers */
     pnv_xscom_region_init(&occ->xscom_regs, OBJECT(dev), &pnv_occ_xscom_ops,
-                  occ, "xscom-occ", PNV_XSCOM_OCC_SIZE);
+                  occ, "xscom-occ", poc->xscom_size);
 }
 
+static void pnv_occ_power8_class_init(ObjectClass *klass, void *data)
+{
+    PnvOCCClass *poc = PNV_OCC_CLASS(klass);
+
+    poc->xscom_size = PNV_XSCOM_OCC_SIZE;
+}
+
+static const TypeInfo pnv_occ_power8_type_info = {
+    .name          = TYPE_PNV8_OCC,
+    .parent        = TYPE_PNV_OCC,
+    .instance_size = sizeof(PnvOCC),
+    .class_init    = pnv_occ_power8_class_init,
+};
+
 static void pnv_occ_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -124,6 +139,7 @@ static void pnv_occ_class_init(ObjectClass *klass, void 
*data)
 static const TypeInfo pnv_occ_type_info = {
     .name          = TYPE_PNV_OCC,
     .parent        = TYPE_DEVICE,
+    .abstract      = true,
     .instance_size = sizeof(PnvOCC),
     .class_init    = pnv_occ_class_init,
 };
@@ -131,6 +147,7 @@ static const TypeInfo pnv_occ_type_info = {
 static void pnv_occ_register_types(void)
 {
     type_register_static(&pnv_occ_type_info);
+    type_register_static(&pnv_occ_power8_type_info);
 }
 
 type_init(pnv_occ_register_types)
-- 
2.20.1