diff options
Diffstat (limited to 'hw/pci.c')
| -rw-r--r-- | hw/pci.c | 177 |
1 files changed, 2 insertions, 175 deletions
@@ -23,6 +23,7 @@ */ #include "hw.h" #include "pci.h" +#include "pci_bridge.h" #include "pci_internals.h" #include "monitor.h" #include "net.h" @@ -272,26 +273,6 @@ PCIBus *pci_register_bus(DeviceState *parent, const char *name, return bus; } -static void pci_register_secondary_bus(PCIBus *parent, - PCIBus *bus, - PCIDevice *dev, - pci_map_irq_fn map_irq, - const char *name) -{ - qbus_create_inplace(&bus->qbus, &pci_bus_info, &dev->qdev, name); - bus->map_irq = map_irq; - bus->parent_dev = dev; - - QLIST_INIT(&bus->child); - QLIST_INSERT_HEAD(&parent->child, bus, sibling); -} - -static void pci_unregister_secondary_bus(PCIBus *bus) -{ - assert(QLIST_EMPTY(&bus->child)); - QLIST_REMOVE(bus, sibling); -} - int pci_bus_num(PCIBus *s) { if (!s->parent_dev) @@ -799,75 +780,6 @@ void pci_register_bar(PCIDevice *pci_dev, int region_num, } } -static uint32_t pci_config_get_io_base(PCIDevice *d, - uint32_t base, uint32_t base_upper16) -{ - uint32_t val; - - val = ((uint32_t)d->config[base] & PCI_IO_RANGE_MASK) << 8; - if (d->config[base] & PCI_IO_RANGE_TYPE_32) { - val |= (uint32_t)pci_get_word(d->config + base_upper16) << 16; - } - return val; -} - -static pcibus_t pci_config_get_memory_base(PCIDevice *d, uint32_t base) -{ - return ((pcibus_t)pci_get_word(d->config + base) & PCI_MEMORY_RANGE_MASK) - << 16; -} - -static pcibus_t pci_config_get_pref_base(PCIDevice *d, - uint32_t base, uint32_t upper) -{ - pcibus_t tmp; - pcibus_t val; - - tmp = (pcibus_t)pci_get_word(d->config + base); - val = (tmp & PCI_PREF_RANGE_MASK) << 16; - if (tmp & PCI_PREF_RANGE_TYPE_64) { - val |= (pcibus_t)pci_get_long(d->config + upper) << 32; - } - return val; -} - -static pcibus_t pci_bridge_get_base(PCIDevice *bridge, uint8_t type) -{ - pcibus_t base; - if (type & PCI_BASE_ADDRESS_SPACE_IO) { - base = pci_config_get_io_base(bridge, - PCI_IO_BASE, PCI_IO_BASE_UPPER16); - } else { - if (type & PCI_BASE_ADDRESS_MEM_PREFETCH) { - base = pci_config_get_pref_base( - bridge, PCI_PREF_MEMORY_BASE, PCI_PREF_BASE_UPPER32); - } else { - base = pci_config_get_memory_base(bridge, PCI_MEMORY_BASE); - } - } - - return base; -} - -static pcibus_t pci_bridge_get_limit(PCIDevice *bridge, uint8_t type) -{ - pcibus_t limit; - if (type & PCI_BASE_ADDRESS_SPACE_IO) { - limit = pci_config_get_io_base(bridge, - PCI_IO_LIMIT, PCI_IO_LIMIT_UPPER16); - limit |= 0xfff; /* PCI bridge spec 3.2.5.6. */ - } else { - if (type & PCI_BASE_ADDRESS_MEM_PREFETCH) { - limit = pci_config_get_pref_base( - bridge, PCI_PREF_MEMORY_LIMIT, PCI_PREF_LIMIT_UPPER32); - } else { - limit = pci_config_get_memory_base(bridge, PCI_MEMORY_LIMIT); - } - limit |= 0xfffff; /* PCI bridge spec 3.2.5.{1, 8}. */ - } - return limit; -} - static void pci_bridge_filter(PCIDevice *d, pcibus_t *addr, pcibus_t *size, uint8_t type) { @@ -1518,7 +1430,7 @@ static void pci_bridge_update_mappings_fn(PCIBus *b, PCIDevice *d) pci_update_mappings(d); } -static void pci_bridge_update_mappings(PCIBus *b) +void pci_bridge_update_mappings(PCIBus *b) { PCIBus *child; @@ -1529,23 +1441,6 @@ static void pci_bridge_update_mappings(PCIBus *b) } } -static void pci_bridge_write_config(PCIDevice *d, - uint32_t address, uint32_t val, int len) -{ - pci_default_write_config(d, address, val, len); - - if (/* io base/limit */ - ranges_overlap(address, len, PCI_IO_BASE, 2) || - - /* memory base/limit, prefetchable base/limit and - io base/limit upper 16 */ - ranges_overlap(address, len, PCI_MEMORY_BASE, 20)) { - PCIBridge *s = container_of(d, PCIBridge, dev); - PCIBus *secondary_bus = &s->bus; - pci_bridge_update_mappings(secondary_bus); - } -} - PCIBus *pci_find_bus(PCIBus *bus, int bus_num) { PCIBus *sec; @@ -1589,54 +1484,6 @@ PCIDevice *pci_find_device(PCIBus *bus, int bus_num, int slot, int function) return bus->devices[PCI_DEVFN(slot, function)]; } -static int pci_bridge_initfn(PCIDevice *dev) -{ - PCIBridge *s = DO_UPCAST(PCIBridge, dev, dev); - - pci_config_set_vendor_id(s->dev.config, s->vid); - pci_config_set_device_id(s->dev.config, s->did); - - pci_set_word(dev->config + PCI_STATUS, - PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK); - pci_config_set_class(dev->config, PCI_CLASS_BRIDGE_PCI); - dev->config[PCI_HEADER_TYPE] = - (dev->config[PCI_HEADER_TYPE] & PCI_HEADER_TYPE_MULTI_FUNCTION) | - PCI_HEADER_TYPE_BRIDGE; - pci_set_word(dev->config + PCI_SEC_STATUS, - PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK); - return 0; -} - -static int pci_bridge_exitfn(PCIDevice *pci_dev) -{ - PCIBridge *s = DO_UPCAST(PCIBridge, dev, pci_dev); - PCIBus *bus = &s->bus; - pci_unregister_secondary_bus(bus); - return 0; -} - -PCIBus *pci_bridge_init(PCIBus *bus, int devfn, bool multifunction, - uint16_t vid, uint16_t did, - pci_map_irq_fn map_irq, const char *name) -{ - PCIDevice *dev; - PCIBridge *s; - - dev = pci_create_multifunction(bus, devfn, multifunction, "pci-bridge"); - qdev_prop_set_uint32(&dev->qdev, "vendorid", vid); - qdev_prop_set_uint32(&dev->qdev, "deviceid", did); - qdev_init_nofail(&dev->qdev); - - s = DO_UPCAST(PCIBridge, dev, dev); - pci_register_secondary_bus(bus, &s->bus, &s->dev, map_irq, name); - return &s->bus; -} - -PCIDevice *pci_bridge_get_device(PCIBus *bus) -{ - return bus->parent_dev; -} - static int pci_qdev_init(DeviceState *qdev, DeviceInfo *base) { PCIDevice *pci_dev = (PCIDevice *)qdev; @@ -1942,23 +1789,3 @@ static char *pcibus_get_dev_path(DeviceState *dev) return strdup(path); } -static PCIDeviceInfo bridge_info = { - .qdev.name = "pci-bridge", - .qdev.size = sizeof(PCIBridge), - .init = pci_bridge_initfn, - .exit = pci_bridge_exitfn, - .config_write = pci_bridge_write_config, - .is_bridge = 1, - .qdev.props = (Property[]) { - DEFINE_PROP_HEX32("vendorid", PCIBridge, vid, 0), - DEFINE_PROP_HEX32("deviceid", PCIBridge, did, 0), - DEFINE_PROP_END_OF_LIST(), - } -}; - -static void pci_register_devices(void) -{ - pci_qdev_register(&bridge_info); -} - -device_init(pci_register_devices) |