ppc/pnv: Add model for POWER10 PHB5 PCIe Host bridge

PHB4 and PHB5 are very similar. Use the PHB4 models with some minor
adjustements in a subclass for P10.

Signed-off-by: Cédric Le Goater <clg@kaod.org>

2 files changed, 73 insertions, 0 deletions

diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c
index 846e7d0..5344a6d 100644
--- a/hw/pci-host/pnv_phb4.c
+++ b/hw/pci-host/pnv_phb4.c
@@ -1812,9 +1812,29 @@ static const TypeInfo pnv_phb4_root_port_info = {
     .class_init    = pnv_phb4_root_port_class_init,
 };
 
+static void pnv_phb5_root_port_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+    dc->desc     = "IBM PHB5 PCIE Root Port";
+    dc->user_creatable = true;
+
+    k->vendor_id = PCI_VENDOR_ID_IBM;
+    k->device_id = PNV_PHB5_DEVICE_ID;
+}
+
+static const TypeInfo pnv_phb5_root_port_info = {
+    .name          = TYPE_PNV_PHB5_ROOT_PORT,
+    .parent        = TYPE_PNV_PHB4_ROOT_PORT,
+    .instance_size = sizeof(PnvPHB4RootPort),
+    .class_init    = pnv_phb5_root_port_class_init,
+};
+
 static void pnv_phb4_register_types(void)
 {
     type_register_static(&pnv_phb4_root_bus_info);
+    type_register_static(&pnv_phb5_root_port_info);
     type_register_static(&pnv_phb4_root_port_info);
     type_register_static(&pnv_phb4_type_info);
     type_register_static(&pnv_phb4_iommu_memory_region_info);
diff --git a/hw/pci-host/pnv_phb4_pec.c b/hw/pci-host/pnv_phb4_pec.c
index 40d89fd..0ab36e9 100644
--- a/hw/pci-host/pnv_phb4_pec.c
+++ b/hw/pci-host/pnv_phb4_pec.c
@@ -281,9 +281,62 @@ static const TypeInfo pnv_pec_type_info = {
     }
 };
 
+/*
+ * POWER10 definitions
+ */
+
+static uint32_t pnv_phb5_pec_xscom_pci_base(PnvPhb4PecState *pec)
+{
+    return PNV10_XSCOM_PEC_PCI_BASE + 0x1000000 * pec->index;
+}
+
+static uint32_t pnv_phb5_pec_xscom_nest_base(PnvPhb4PecState *pec)
+{
+    /* index goes down ... */
+    return PNV10_XSCOM_PEC_NEST_BASE - 0x1000000 * pec->index;
+}
+
+/*
+ * PEC0 -> 3 stacks
+ * PEC1 -> 3 stacks
+ */
+static const uint32_t pnv_phb5_pec_num_stacks[] = { 3, 3 };
+
+static void pnv_phb5_pec_class_init(ObjectClass *klass, void *data)
+{
+    PnvPhb4PecClass *pecc = PNV_PHB4_PEC_CLASS(klass);
+    static const char compat[] = "ibm,power10-pbcq";
+    static const char stk_compat[] = "ibm,power10-phb-stack";
+
+    pecc->xscom_nest_base = pnv_phb5_pec_xscom_nest_base;
+    pecc->xscom_pci_base  = pnv_phb5_pec_xscom_pci_base;
+    pecc->xscom_nest_size = PNV10_XSCOM_PEC_NEST_SIZE;
+    pecc->xscom_pci_size  = PNV10_XSCOM_PEC_PCI_SIZE;
+    pecc->compat = compat;
+    pecc->compat_size = sizeof(compat);
+    pecc->stk_compat = stk_compat;
+    pecc->stk_compat_size = sizeof(stk_compat);
+    pecc->version = PNV_PHB5_VERSION;
+    pecc->num_phbs = pnv_phb5_pec_num_stacks;
+    pecc->rp_model = TYPE_PNV_PHB5_ROOT_PORT;
+}
+
+static const TypeInfo pnv_phb5_pec_type_info = {
+    .name          = TYPE_PNV_PHB5_PEC,
+    .parent        = TYPE_PNV_PHB4_PEC,
+    .instance_size = sizeof(PnvPhb4PecState),
+    .class_init    = pnv_phb5_pec_class_init,
+    .class_size    = sizeof(PnvPhb4PecClass),
+    .interfaces    = (InterfaceInfo[]) {
+        { TYPE_PNV_XSCOM_INTERFACE },
+        { }
+    }
+};
+
 static void pnv_pec_register_types(void)
 {
     type_register_static(&pnv_pec_type_info);
+    type_register_static(&pnv_phb5_pec_type_info);
 }
 
 type_init(pnv_pec_register_types);