32 #define TYPE_PXB_BUS "pxb-bus"
37 #define TYPE_PXB_PCIE_BUS "pxb-pcie-bus"
73 static int pxb_bus_num(PCIBus *bus)  in pxb_bus_num()  argument
75     PXBDev *pxb = PXB_DEV(bus->parent_dev);  in pxb_bus_num()
80 static uint16_t pxb_bus_numa_node(PCIBus *bus)  in pxb_bus_numa_node()  argument
82     PXBDev *pxb = PXB_DEV(bus->parent_dev);  in pxb_bus_numa_node()
132     PXBBus *bus = pci_bus_is_cxl(rootbus) ?  in pxb_host_root_bus_path()  local
137     snprintf(bus->bus_path, 8, "0000:%02x", pxb_bus_num(rootbus));  in pxb_host_root_bus_path()
138     return bus->bus_path;  in pxb_host_root_bus_path()
152     pxb_bus = pxb_host->bus;  in pxb_host_ofw_unit_address()
209 void pxb_cxl_hook_up_registers(CXLState *cxl_state, PCIBus *bus, Error **errp)  in pxb_cxl_hook_up_registers()  argument
211     PXBCXLDev *pxb =  PXB_CXL_DEV(pci_bridge_get_device(bus));  in pxb_cxl_hook_up_registers()
251  * Registers the PXB bus as a child of pci host root bus.
255     PCIBus *bus = pci_get_bus(dev);  in pxb_register_bus()  local
258     if (bus->parent_dev) {  in pxb_register_bus()
259         error_setg(errp, "PXB devices can be attached only to root bus");  in pxb_register_bus()
263     QLIST_FOREACH(bus, &bus->child, sibling) {  in pxb_register_bus()
264         if (pci_bus_num(bus) == pxb_bus_num) {  in pxb_register_bus()
265             error_setg(errp, "Bus %d is already in use", pxb_bus_num);  in pxb_register_bus()
284      * it computes the IRQ because it resides on bus 0  in pxb_map_irq_fn()
285      * and not on the current bus.  in pxb_map_irq_fn()
286      * However QEMU routes the irq through bus 0 and adds  in pxb_map_irq_fn()
311         dsp_count = pcie_count_ds_ports(hb->bus);  in pxb_cxl_dev_reset()
338     PCIBus *bus;  in pxb_dev_realize_common()  local
360         bus = pci_root_bus_new(ds, dev_name, NULL, NULL, 0, TYPE_PXB_PCIE_BUS);  in pxb_dev_realize_common()
362         bus = pci_root_bus_new(ds, dev_name, NULL, NULL, 0, TYPE_PXB_CXL_BUS);  in pxb_dev_realize_common()
363         bus->flags |= PCI_BUS_CXL;  in pxb_dev_realize_common()
366         bus = pci_root_bus_new(ds, "pxb-internal", NULL, NULL, 0, TYPE_PXB_BUS);  in pxb_dev_realize_common()
373     bus->parent_dev = dev;  in pxb_dev_realize_common()
374     bus->address_space_mem = pci_get_bus(dev)->address_space_mem;  in pxb_dev_realize_common()
375     bus->address_space_io = pci_get_bus(dev)->address_space_io;  in pxb_dev_realize_common()
376     bus->map_irq = pxb_map_irq_fn;  in pxb_dev_realize_common()
378     PCI_HOST_BRIDGE(ds)->bus = bus;  in pxb_dev_realize_common()
381     pxb_register_bus(dev, bus, &local_err);  in pxb_dev_realize_common()
389         qdev_realize_and_unref(bds, &bus->qbus, &error_fatal);  in pxb_dev_realize_common()
401     object_unparent(OBJECT(bus));  in pxb_dev_realize_common()
409         error_setg(errp, "pxb devices cannot reside on a PCIe bus");  in pxb_dev_realize()
424     /* Note: 0 is not a legal PXB bus number. */
461         error_setg(errp, "pxb-pcie devices cannot reside on a PCI bus");  in pxb_pcie_dev_realize()
497     /* A CXL PXB's parent bus is still PCIe */  in pxb_cxl_dev_realize()
499         error_setg(errp, "pxb-cxl devices cannot reside on a PCI bus");  in pxb_cxl_dev_realize()