* QEMU PREP PCI host
*
* Copyright (c) 2006 Fabrice Bellard
+ * Copyright (c) 2011-2013 Andreas Färber
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* THE SOFTWARE.
*/
-#include "hw.h"
-#include "pci.h"
-#include "pci_host.h"
-#include "prep_pci.h"
+#include "hw/hw.h"
+#include "hw/pci/pci.h"
+#include "hw/pci/pci_bus.h"
+#include "hw/pci/pci_host.h"
+#include "hw/pc.h"
+#include "exec/address-spaces.h"
-typedef PCIHostState PREPPCIState;
+#define TYPE_RAVEN_PCI_DEVICE "raven"
+#define TYPE_RAVEN_PCI_HOST_BRIDGE "raven-pcihost"
-static inline uint32_t PPC_PCIIO_config(target_phys_addr_t addr)
+#define RAVEN_PCI_DEVICE(obj) \
+ OBJECT_CHECK(RavenPCIState, (obj), TYPE_RAVEN_PCI_DEVICE)
+
+typedef struct RavenPCIState {
+ PCIDevice dev;
+} RavenPCIState;
+
+#define RAVEN_PCI_HOST_BRIDGE(obj) \
+ OBJECT_CHECK(PREPPCIState, (obj), TYPE_RAVEN_PCI_HOST_BRIDGE)
+
+typedef struct PRePPCIState {
+ PCIHostState parent_obj;
+
+ MemoryRegion intack;
+ qemu_irq irq[4];
+ PCIBus pci_bus;
+ RavenPCIState pci_dev;
+} PREPPCIState;
+
+static inline uint32_t PPC_PCIIO_config(hwaddr addr)
{
int i;
- for(i = 0; i < 11; i++) {
- if ((addr & (1 << (11 + i))) != 0)
+ for (i = 0; i < 11; i++) {
+ if ((addr & (1 << (11 + i))) != 0) {
break;
+ }
}
return (addr & 0x7ff) | (i << 11);
}
-static void PPC_PCIIO_writeb (void *opaque, target_phys_addr_t addr, uint32_t val)
+static void ppc_pci_io_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned int size)
{
PREPPCIState *s = opaque;
- pci_data_write(s->bus, PPC_PCIIO_config(addr), val, 1);
+ PCIHostState *phb = PCI_HOST_BRIDGE(s);
+ pci_data_write(phb->bus, PPC_PCIIO_config(addr), val, size);
}
-static void PPC_PCIIO_writew (void *opaque, target_phys_addr_t addr, uint32_t val)
+static uint64_t ppc_pci_io_read(void *opaque, hwaddr addr,
+ unsigned int size)
{
PREPPCIState *s = opaque;
- val = bswap16(val);
- pci_data_write(s->bus, PPC_PCIIO_config(addr), val, 2);
+ PCIHostState *phb = PCI_HOST_BRIDGE(s);
+ return pci_data_read(phb->bus, PPC_PCIIO_config(addr), size);
}
-static void PPC_PCIIO_writel (void *opaque, target_phys_addr_t addr, uint32_t val)
+static const MemoryRegionOps PPC_PCIIO_ops = {
+ .read = ppc_pci_io_read,
+ .write = ppc_pci_io_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static uint64_t ppc_intack_read(void *opaque, hwaddr addr,
+ unsigned int size)
{
- PREPPCIState *s = opaque;
- val = bswap32(val);
- pci_data_write(s->bus, PPC_PCIIO_config(addr), val, 4);
+ return pic_read_irq(isa_pic);
}
-static uint32_t PPC_PCIIO_readb (void *opaque, target_phys_addr_t addr)
+static const MemoryRegionOps PPC_intack_ops = {
+ .read = ppc_intack_read,
+ .valid = {
+ .max_access_size = 1,
+ },
+};
+
+static int prep_map_irq(PCIDevice *pci_dev, int irq_num)
{
- PREPPCIState *s = opaque;
- uint32_t val;
- val = pci_data_read(s->bus, PPC_PCIIO_config(addr), 1);
- return val;
+ return (irq_num + (pci_dev->devfn >> 3)) & 1;
}
-static uint32_t PPC_PCIIO_readw (void *opaque, target_phys_addr_t addr)
+static void prep_set_irq(void *opaque, int irq_num, int level)
{
- PREPPCIState *s = opaque;
- uint32_t val;
- val = pci_data_read(s->bus, PPC_PCIIO_config(addr), 2);
- val = bswap16(val);
- return val;
+ qemu_irq *pic = opaque;
+
+ qemu_set_irq(pic[irq_num] , level);
}
-static uint32_t PPC_PCIIO_readl (void *opaque, target_phys_addr_t addr)
+static void raven_pcihost_realizefn(DeviceState *d, Error **errp)
{
- PREPPCIState *s = opaque;
- uint32_t val;
- val = pci_data_read(s->bus, PPC_PCIIO_config(addr), 4);
- val = bswap32(val);
- return val;
-}
+ SysBusDevice *dev = SYS_BUS_DEVICE(d);
+ PCIHostState *h = PCI_HOST_BRIDGE(dev);
+ PREPPCIState *s = RAVEN_PCI_HOST_BRIDGE(dev);
+ MemoryRegion *address_space_mem = get_system_memory();
+ int i;
-static CPUWriteMemoryFunc * const PPC_PCIIO_write[] = {
- &PPC_PCIIO_writeb,
- &PPC_PCIIO_writew,
- &PPC_PCIIO_writel,
-};
+ for (i = 0; i < 4; i++) {
+ sysbus_init_irq(dev, &s->irq[i]);
+ }
-static CPUReadMemoryFunc * const PPC_PCIIO_read[] = {
- &PPC_PCIIO_readb,
- &PPC_PCIIO_readw,
- &PPC_PCIIO_readl,
-};
+ pci_bus_irqs(&s->pci_bus, prep_set_irq, prep_map_irq, s->irq, 4);
-static int prep_map_irq(PCIDevice *pci_dev, int irq_num)
-{
- return (irq_num + (pci_dev->devfn >> 3)) & 1;
+ memory_region_init_io(&h->conf_mem, &pci_host_conf_be_ops, s,
+ "pci-conf-idx", 1);
+ sysbus_add_io(dev, 0xcf8, &h->conf_mem);
+ sysbus_init_ioports(&h->busdev, 0xcf8, 1);
+
+ memory_region_init_io(&h->data_mem, &pci_host_data_be_ops, s,
+ "pci-conf-data", 1);
+ sysbus_add_io(dev, 0xcfc, &h->data_mem);
+ sysbus_init_ioports(&h->busdev, 0xcfc, 1);
+
+ memory_region_init_io(&h->mmcfg, &PPC_PCIIO_ops, s, "pciio", 0x00400000);
+ memory_region_add_subregion(address_space_mem, 0x80800000, &h->mmcfg);
+
+ memory_region_init_io(&s->intack, &PPC_intack_ops, s, "pci-intack", 1);
+ memory_region_add_subregion(address_space_mem, 0xbffffff0, &s->intack);
+
+ /* TODO Remove once realize propagates to child devices. */
+ object_property_set_bool(OBJECT(&s->pci_dev), true, "realized", errp);
}
-static void prep_set_irq(void *opaque, int irq_num, int level)
+static void raven_pcihost_initfn(Object *obj)
{
- qemu_irq *pic = opaque;
-
- qemu_set_irq(pic[(irq_num & 1) ? 11 : 9] , level);
+ PCIHostState *h = PCI_HOST_BRIDGE(obj);
+ PREPPCIState *s = RAVEN_PCI_HOST_BRIDGE(obj);
+ MemoryRegion *address_space_mem = get_system_memory();
+ MemoryRegion *address_space_io = get_system_io();
+ DeviceState *pci_dev;
+
+ pci_bus_new_inplace(&s->pci_bus, DEVICE(obj), NULL,
+ address_space_mem, address_space_io, 0, TYPE_PCI_BUS);
+ h->bus = &s->pci_bus;
+
+ object_initialize(&s->pci_dev, TYPE_RAVEN_PCI_DEVICE);
+ pci_dev = DEVICE(&s->pci_dev);
+ qdev_set_parent_bus(pci_dev, BUS(&s->pci_bus));
+ object_property_set_int(OBJECT(&s->pci_dev), PCI_DEVFN(0, 0), "addr",
+ NULL);
+ qdev_prop_set_bit(pci_dev, "multifunction", false);
}
-PCIBus *pci_prep_init(qemu_irq *pic)
+static int raven_init(PCIDevice *d)
{
- PREPPCIState *s;
- PCIDevice *d;
- int PPC_io_memory;
-
- s = qemu_mallocz(sizeof(PREPPCIState));
- s->bus = pci_register_bus(NULL, "pci",
- prep_set_irq, prep_map_irq, pic, 0, 4);
-
- pci_host_conf_register_ioport(0xcf8, s);
-
- pci_host_data_register_ioport(0xcfc, s);
-
- PPC_io_memory = cpu_register_io_memory(PPC_PCIIO_read,
- PPC_PCIIO_write, s,
- DEVICE_NATIVE_ENDIAN);
- cpu_register_physical_memory(0x80800000, 0x00400000, PPC_io_memory);
-
- /* PCI host bridge */
- d = pci_register_device(s->bus, "PREP Host Bridge - Motorola Raven",
- sizeof(PCIDevice), 0, NULL, NULL);
- pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_MOTOROLA);
- pci_config_set_device_id(d->config, PCI_DEVICE_ID_MOTOROLA_RAVEN);
- d->config[0x08] = 0x00; // revision
- pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
d->config[0x0C] = 0x08; // cache_line_size
d->config[0x0D] = 0x10; // latency_timer
d->config[0x34] = 0x00; // capabilities_pointer
- return s->bus;
+ return 0;
+}
+
+static const VMStateDescription vmstate_raven = {
+ .name = "raven",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCI_DEVICE(dev, RavenPCIState),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static void raven_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->init = raven_init;
+ k->vendor_id = PCI_VENDOR_ID_MOTOROLA;
+ k->device_id = PCI_DEVICE_ID_MOTOROLA_RAVEN;
+ k->revision = 0x00;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ dc->desc = "PReP Host Bridge - Motorola Raven";
+ dc->vmsd = &vmstate_raven;
+ dc->no_user = 1;
}
+
+static const TypeInfo raven_info = {
+ .name = TYPE_RAVEN_PCI_DEVICE,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(RavenPCIState),
+ .class_init = raven_class_init,
+};
+
+static void raven_pcihost_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->realize = raven_pcihost_realizefn;
+ dc->fw_name = "pci";
+ dc->no_user = 1;
+}
+
+static const TypeInfo raven_pcihost_info = {
+ .name = TYPE_RAVEN_PCI_HOST_BRIDGE,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(PREPPCIState),
+ .instance_init = raven_pcihost_initfn,
+ .class_init = raven_pcihost_class_init,
+};
+
+static void raven_register_types(void)
+{
+ type_register_static(&raven_pcihost_info);
+ type_register_static(&raven_info);
+}
+
+type_init(raven_register_types)
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