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/*
* ioh3420.c
* Intel X58 north bridge IOH
* PCI Express root port device id 3420
*
* Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "pci_ids.h"
#include "msi.h"
#include "pcie.h"
#include "ioh3420.h"
#define PCI_DEVICE_ID_IOH_EPORT 0x3420 /* D0:F0 express mode */
#define PCI_DEVICE_ID_IOH_REV 0x2
#define IOH_EP_SSVID_OFFSET 0x40
#define IOH_EP_SSVID_SVID PCI_VENDOR_ID_INTEL
#define IOH_EP_SSVID_SSID 0
#define IOH_EP_MSI_OFFSET 0x60
#define IOH_EP_MSI_SUPPORTED_FLAGS PCI_MSI_FLAGS_MASKBIT
#define IOH_EP_MSI_NR_VECTOR 2
#define IOH_EP_EXP_OFFSET 0x90
#define IOH_EP_AER_OFFSET 0x100
static void ioh3420_write_config(PCIDevice *d,
uint32_t address, uint32_t val, int len)
{
pci_bridge_write_config(d, address, val, len);
msi_write_config(d, address, val, len);
pcie_cap_slot_write_config(d, address, val, len);
/* TODO: AER */
}
static void ioh3420_reset(DeviceState *qdev)
{
PCIDevice *d = DO_UPCAST(PCIDevice, qdev, qdev);
msi_reset(d);
pcie_cap_root_reset(d);
pcie_cap_deverr_reset(d);
pcie_cap_slot_reset(d);
pci_bridge_reset(qdev);
pci_bridge_disable_base_limit(d);
/* TODO: AER */
}
static int ioh3420_initfn(PCIDevice *d)
{
PCIBridge* br = DO_UPCAST(PCIBridge, dev, d);
PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
PCIESlot *s = DO_UPCAST(PCIESlot, port, p);
int rc;
rc = pci_bridge_initfn(d);
if (rc < 0) {
return rc;
}
d->config[PCI_REVISION_ID] = PCI_DEVICE_ID_IOH_REV;
pcie_port_init_reg(d);
pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_INTEL);
pci_config_set_device_id(d->config, PCI_DEVICE_ID_IOH_EPORT);
rc = pci_bridge_ssvid_init(d, IOH_EP_SSVID_OFFSET,
IOH_EP_SSVID_SVID, IOH_EP_SSVID_SSID);
if (rc < 0) {
return rc;
}
rc = msi_init(d, IOH_EP_MSI_OFFSET, IOH_EP_MSI_NR_VECTOR,
IOH_EP_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_64BIT,
IOH_EP_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_MASKBIT);
if (rc < 0) {
return rc;
}
rc = pcie_cap_init(d, IOH_EP_EXP_OFFSET, PCI_EXP_TYPE_ROOT_PORT, p->port);
if (rc < 0) {
return rc;
}
pcie_cap_deverr_init(d);
pcie_cap_slot_init(d, s->slot);
pcie_chassis_create(s->chassis);
rc = pcie_chassis_add_slot(s);
if (rc < 0) {
return rc;
}
pcie_cap_root_init(d);
/* TODO: AER */
return 0;
}
static int ioh3420_exitfn(PCIDevice *d)
{
/* TODO: AER */
msi_uninit(d);
pcie_cap_exit(d);
return pci_bridge_exitfn(d);
}
PCIESlot *ioh3420_init(PCIBus *bus, int devfn, bool multifunction,
const char *bus_name, pci_map_irq_fn map_irq,
uint8_t port, uint8_t chassis, uint16_t slot)
{
PCIDevice *d;
PCIBridge *br;
DeviceState *qdev;
d = pci_create_multifunction(bus, devfn, multifunction, "ioh3420");
if (!d) {
return NULL;
}
br = DO_UPCAST(PCIBridge, dev, d);
qdev = &br->dev.qdev;
pci_bridge_map_irq(br, bus_name, map_irq);
qdev_prop_set_uint8(qdev, "port", port);
qdev_prop_set_uint8(qdev, "chassis", chassis);
qdev_prop_set_uint16(qdev, "slot", slot);
qdev_init_nofail(qdev);
return DO_UPCAST(PCIESlot, port, DO_UPCAST(PCIEPort, br, br));
}
static const VMStateDescription vmstate_ioh3420 = {
.name = "ioh-3240-express-root-port",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.post_load = pcie_cap_slot_post_load,
.fields = (VMStateField[]) {
VMSTATE_PCIE_DEVICE(port.br.dev, PCIESlot),
/* TODO: AER */
VMSTATE_END_OF_LIST()
}
};
static PCIDeviceInfo ioh3420_info = {
.qdev.name = "ioh3420",
.qdev.desc = "Intel IOH device id 3420 PCIE Root Port",
.qdev.size = sizeof(PCIESlot),
.qdev.reset = ioh3420_reset,
.qdev.vmsd = &vmstate_ioh3420,
.is_express = 1,
.is_bridge = 1,
.config_write = ioh3420_write_config,
.init = ioh3420_initfn,
.exit = ioh3420_exitfn,
.qdev.props = (Property[]) {
DEFINE_PROP_UINT8("port", PCIESlot, port.port, 0),
DEFINE_PROP_UINT8("chassis", PCIESlot, chassis, 0),
DEFINE_PROP_UINT16("slot", PCIESlot, slot, 0),
/* TODO: AER */
DEFINE_PROP_END_OF_LIST(),
}
};
static void ioh3420_register(void)
{
pci_qdev_register(&ioh3420_info);
}
device_init(ioh3420_register);
/*
* Local variables:
* c-indent-level: 4
* c-basic-offset: 4
* tab-width: 8
* indent-tab-mode: nil
* End:
*/
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