3 * Intel X58 north bridge IOH
4 * PCI Express root port device id 3420
6 * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
7 * VA Linux Systems Japan K.K.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, see <http://www.gnu.org/licenses/>.
28 #define PCI_DEVICE_ID_IOH_EPORT 0x3420 /* D0:F0 express mode */
29 #define PCI_DEVICE_ID_IOH_REV 0x2
30 #define IOH_EP_SSVID_OFFSET 0x40
31 #define IOH_EP_SSVID_SVID PCI_VENDOR_ID_INTEL
32 #define IOH_EP_SSVID_SSID 0
33 #define IOH_EP_MSI_OFFSET 0x60
34 #define IOH_EP_MSI_SUPPORTED_FLAGS PCI_MSI_FLAGS_MASKBIT
35 #define IOH_EP_MSI_NR_VECTOR 2
36 #define IOH_EP_EXP_OFFSET 0x90
37 #define IOH_EP_AER_OFFSET 0x100
40 * If two MSI vector are allocated, Advanced Error Interrupt Message Number
42 * 17.12.5.10 RPERRSTS, 32:27 bit Advanced Error Interrupt Message Number.
44 static uint8_t ioh3420_aer_vector(const PCIDevice *d)
46 switch (msi_nr_vectors_allocated(d)) {
62 static void ioh3420_aer_vector_update(PCIDevice *d)
64 pcie_aer_root_set_vector(d, ioh3420_aer_vector(d));
67 static void ioh3420_write_config(PCIDevice *d,
68 uint32_t address, uint32_t val, int len)
71 pci_get_long(d->config + d->exp.aer_cap + PCI_ERR_ROOT_COMMAND);
73 pci_bridge_write_config(d, address, val, len);
74 msi_write_config(d, address, val, len);
75 ioh3420_aer_vector_update(d);
76 pcie_cap_slot_write_config(d, address, val, len);
77 pcie_aer_write_config(d, address, val, len);
78 pcie_aer_root_write_config(d, address, val, len, root_cmd);
81 static void ioh3420_reset(DeviceState *qdev)
83 PCIDevice *d = DO_UPCAST(PCIDevice, qdev, qdev);
85 ioh3420_aer_vector_update(d);
86 pcie_cap_root_reset(d);
87 pcie_cap_deverr_reset(d);
88 pcie_cap_slot_reset(d);
89 pcie_aer_root_reset(d);
90 pci_bridge_reset(qdev);
91 pci_bridge_disable_base_limit(d);
94 static int ioh3420_initfn(PCIDevice *d)
96 PCIBridge* br = DO_UPCAST(PCIBridge, dev, d);
97 PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
98 PCIESlot *s = DO_UPCAST(PCIESlot, port, p);
102 rc = pci_bridge_initfn(d);
107 pcie_port_init_reg(d);
109 rc = pci_bridge_ssvid_init(d, IOH_EP_SSVID_OFFSET,
110 IOH_EP_SSVID_SVID, IOH_EP_SSVID_SSID);
114 rc = msi_init(d, IOH_EP_MSI_OFFSET, IOH_EP_MSI_NR_VECTOR,
115 IOH_EP_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_64BIT,
116 IOH_EP_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_MASKBIT);
120 rc = pcie_cap_init(d, IOH_EP_EXP_OFFSET, PCI_EXP_TYPE_ROOT_PORT, p->port);
124 pcie_cap_deverr_init(d);
125 pcie_cap_slot_init(d, s->slot);
126 pcie_chassis_create(s->chassis);
127 rc = pcie_chassis_add_slot(s);
132 pcie_cap_root_init(d);
133 rc = pcie_aer_init(d, IOH_EP_AER_OFFSET);
137 pcie_aer_root_init(d);
138 ioh3420_aer_vector_update(d);
142 pcie_chassis_del_slot(s);
148 tmp = pci_bridge_exitfn(d);
153 static int ioh3420_exitfn(PCIDevice *d)
155 PCIBridge* br = DO_UPCAST(PCIBridge, dev, d);
156 PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
157 PCIESlot *s = DO_UPCAST(PCIESlot, port, p);
160 pcie_chassis_del_slot(s);
163 return pci_bridge_exitfn(d);
166 PCIESlot *ioh3420_init(PCIBus *bus, int devfn, bool multifunction,
167 const char *bus_name, pci_map_irq_fn map_irq,
168 uint8_t port, uint8_t chassis, uint16_t slot)
174 d = pci_create_multifunction(bus, devfn, multifunction, "ioh3420");
178 br = DO_UPCAST(PCIBridge, dev, d);
180 qdev = &br->dev.qdev;
181 pci_bridge_map_irq(br, bus_name, map_irq);
182 qdev_prop_set_uint8(qdev, "port", port);
183 qdev_prop_set_uint8(qdev, "chassis", chassis);
184 qdev_prop_set_uint16(qdev, "slot", slot);
185 qdev_init_nofail(qdev);
187 return DO_UPCAST(PCIESlot, port, DO_UPCAST(PCIEPort, br, br));
190 static const VMStateDescription vmstate_ioh3420 = {
191 .name = "ioh-3240-express-root-port",
193 .minimum_version_id = 1,
194 .minimum_version_id_old = 1,
195 .post_load = pcie_cap_slot_post_load,
196 .fields = (VMStateField[]) {
197 VMSTATE_PCIE_DEVICE(port.br.dev, PCIESlot),
198 VMSTATE_STRUCT(port.br.dev.exp.aer_log, PCIESlot, 0,
199 vmstate_pcie_aer_log, PCIEAERLog),
200 VMSTATE_END_OF_LIST()
204 static PCIDeviceInfo ioh3420_info = {
205 .qdev.name = "ioh3420",
206 .qdev.desc = "Intel IOH device id 3420 PCIE Root Port",
207 .qdev.size = sizeof(PCIESlot),
208 .qdev.reset = ioh3420_reset,
209 .qdev.vmsd = &vmstate_ioh3420,
213 .config_write = ioh3420_write_config,
214 .init = ioh3420_initfn,
215 .exit = ioh3420_exitfn,
216 .vendor_id = PCI_VENDOR_ID_INTEL,
217 .device_id = PCI_DEVICE_ID_IOH_EPORT,
218 .revision = PCI_DEVICE_ID_IOH_REV,
220 .qdev.props = (Property[]) {
221 DEFINE_PROP_UINT8("port", PCIESlot, port.port, 0),
222 DEFINE_PROP_UINT8("chassis", PCIESlot, chassis, 0),
223 DEFINE_PROP_UINT16("slot", PCIESlot, slot, 0),
224 DEFINE_PROP_UINT16("aer_log_max", PCIESlot,
225 port.br.dev.exp.aer_log.log_max,
226 PCIE_AER_LOG_MAX_DEFAULT),
227 DEFINE_PROP_END_OF_LIST(),
231 static void ioh3420_register(void)
233 pci_qdev_register(&ioh3420_info);
236 device_init(ioh3420_register);
243 * indent-tab-mode: nil