3 * TI X3130 pci express downstream port switch
5 * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
6 * VA Linux Systems Japan K.K.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, see <http://www.gnu.org/licenses/>.
22 #include "qemu/osdep.h"
23 #include "hw/pci/pci_ids.h"
24 #include "hw/pci/msi.h"
25 #include "hw/pci/pcie.h"
26 #include "hw/pci/pcie_port.h"
27 #include "qapi/error.h"
28 #include "qemu/module.h"
30 #define PCI_DEVICE_ID_TI_XIO3130D 0x8233 /* downstream port */
31 #define XIO3130_REVISION 0x1
32 #define XIO3130_MSI_OFFSET 0x70
33 #define XIO3130_MSI_SUPPORTED_FLAGS PCI_MSI_FLAGS_64BIT
34 #define XIO3130_MSI_NR_VECTOR 1
35 #define XIO3130_SSVID_OFFSET 0x80
36 #define XIO3130_SSVID_SVID 0
37 #define XIO3130_SSVID_SSID 0
38 #define XIO3130_EXP_OFFSET 0x90
39 #define XIO3130_AER_OFFSET 0x100
41 static void xio3130_downstream_write_config(PCIDevice
*d
, uint32_t address
,
42 uint32_t val
, int len
)
44 uint16_t slt_ctl
, slt_sta
;
46 pcie_cap_slot_get(d
, &slt_sta
, &slt_ctl
);
47 pci_bridge_write_config(d
, address
, val
, len
);
48 pcie_cap_flr_write_config(d
, address
, val
, len
);
49 pcie_cap_slot_write_config(d
, slt_ctl
, slt_sta
, address
, val
, len
);
50 pcie_aer_write_config(d
, address
, val
, len
);
53 static void xio3130_downstream_reset(DeviceState
*qdev
)
55 PCIDevice
*d
= PCI_DEVICE(qdev
);
57 pcie_cap_deverr_reset(d
);
58 pcie_cap_slot_reset(d
);
59 pcie_cap_arifwd_reset(d
);
60 pci_bridge_reset(qdev
);
63 static void xio3130_downstream_realize(PCIDevice
*d
, Error
**errp
)
65 PCIEPort
*p
= PCIE_PORT(d
);
66 PCIESlot
*s
= PCIE_SLOT(d
);
69 pci_bridge_initfn(d
, TYPE_PCIE_BUS
);
70 pcie_port_init_reg(d
);
72 rc
= msi_init(d
, XIO3130_MSI_OFFSET
, XIO3130_MSI_NR_VECTOR
,
73 XIO3130_MSI_SUPPORTED_FLAGS
& PCI_MSI_FLAGS_64BIT
,
74 XIO3130_MSI_SUPPORTED_FLAGS
& PCI_MSI_FLAGS_MASKBIT
,
77 assert(rc
== -ENOTSUP
);
81 rc
= pci_bridge_ssvid_init(d
, XIO3130_SSVID_OFFSET
,
82 XIO3130_SSVID_SVID
, XIO3130_SSVID_SSID
,
88 rc
= pcie_cap_init(d
, XIO3130_EXP_OFFSET
, PCI_EXP_TYPE_DOWNSTREAM
,
94 pcie_cap_deverr_init(d
);
95 pcie_cap_slot_init(d
, s
->slot
);
96 pcie_cap_arifwd_init(d
);
98 pcie_chassis_create(s
->chassis
);
99 rc
= pcie_chassis_add_slot(s
);
101 error_setg(errp
, "Can't add chassis slot, error %d", rc
);
105 rc
= pcie_aer_init(d
, PCI_ERR_VER
, XIO3130_AER_OFFSET
,
106 PCI_ERR_SIZEOF
, errp
);
114 pcie_chassis_del_slot(s
);
120 pci_bridge_exitfn(d
);
123 static void xio3130_downstream_exitfn(PCIDevice
*d
)
125 PCIESlot
*s
= PCIE_SLOT(d
);
128 pcie_chassis_del_slot(s
);
131 pci_bridge_exitfn(d
);
134 static Property xio3130_downstream_props
[] = {
135 DEFINE_PROP_BIT(COMPAT_PROP_PCP
, PCIDevice
, cap_present
,
136 QEMU_PCIE_SLTCAP_PCP_BITNR
, true),
137 DEFINE_PROP_END_OF_LIST()
140 static const VMStateDescription vmstate_xio3130_downstream
= {
141 .name
= "xio3130-express-downstream-port",
142 .priority
= MIG_PRI_PCI_BUS
,
144 .minimum_version_id
= 1,
145 .post_load
= pcie_cap_slot_post_load
,
146 .fields
= (VMStateField
[]) {
147 VMSTATE_PCI_DEVICE(parent_obj
.parent_obj
.parent_obj
, PCIESlot
),
148 VMSTATE_STRUCT(parent_obj
.parent_obj
.parent_obj
.exp
.aer_log
,
149 PCIESlot
, 0, vmstate_pcie_aer_log
, PCIEAERLog
),
150 VMSTATE_END_OF_LIST()
154 static void xio3130_downstream_class_init(ObjectClass
*klass
, void *data
)
156 DeviceClass
*dc
= DEVICE_CLASS(klass
);
157 PCIDeviceClass
*k
= PCI_DEVICE_CLASS(klass
);
160 k
->config_write
= xio3130_downstream_write_config
;
161 k
->realize
= xio3130_downstream_realize
;
162 k
->exit
= xio3130_downstream_exitfn
;
163 k
->vendor_id
= PCI_VENDOR_ID_TI
;
164 k
->device_id
= PCI_DEVICE_ID_TI_XIO3130D
;
165 k
->revision
= XIO3130_REVISION
;
166 set_bit(DEVICE_CATEGORY_BRIDGE
, dc
->categories
);
167 dc
->desc
= "TI X3130 Downstream Port of PCI Express Switch";
168 dc
->reset
= xio3130_downstream_reset
;
169 dc
->vmsd
= &vmstate_xio3130_downstream
;
170 dc
->props
= xio3130_downstream_props
;
173 static const TypeInfo xio3130_downstream_info
= {
174 .name
= "xio3130-downstream",
175 .parent
= TYPE_PCIE_SLOT
,
176 .class_init
= xio3130_downstream_class_init
,
177 .interfaces
= (InterfaceInfo
[]) {
178 { INTERFACE_PCIE_DEVICE
},
183 static void xio3130_downstream_register_types(void)
185 type_register_static(&xio3130_downstream_info
);
188 type_init(xio3130_downstream_register_types
)