1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
/*
* x3130_downstream.c
* TI X3130 pci express downstream port switch
*
* 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 "hw/pci/pci_ids.h"
#include "hw/pci/msi.h"
#include "hw/pci/pcie.h"
#include "hw/xio3130_downstream.h"
#define PCI_DEVICE_ID_TI_XIO3130D 0x8233 /* downstream port */
#define XIO3130_REVISION 0x1
#define XIO3130_MSI_OFFSET 0x70
#define XIO3130_MSI_SUPPORTED_FLAGS PCI_MSI_FLAGS_64BIT
#define XIO3130_MSI_NR_VECTOR 1
#define XIO3130_SSVID_OFFSET 0x80
#define XIO3130_SSVID_SVID 0
#define XIO3130_SSVID_SSID 0
#define XIO3130_EXP_OFFSET 0x90
#define XIO3130_AER_OFFSET 0x100
static void xio3130_downstream_write_config(PCIDevice *d, uint32_t address,
uint32_t val, int len)
{
pci_bridge_write_config(d, address, val, len);
pcie_cap_flr_write_config(d, address, val, len);
pcie_cap_slot_write_config(d, address, val, len);
pcie_aer_write_config(d, address, val, len);
}
static void xio3130_downstream_reset(DeviceState *qdev)
{
PCIDevice *d = PCI_DEVICE(qdev);
pcie_cap_deverr_reset(d);
pcie_cap_slot_reset(d);
pcie_cap_ari_reset(d);
pci_bridge_reset(qdev);
}
static int xio3130_downstream_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, TYPE_PCIE_BUS);
if (rc < 0) {
return rc;
}
pcie_port_init_reg(d);
rc = msi_init(d, XIO3130_MSI_OFFSET, XIO3130_MSI_NR_VECTOR,
XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_64BIT,
XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_MASKBIT);
if (rc < 0) {
goto err_bridge;
}
rc = pci_bridge_ssvid_init(d, XIO3130_SSVID_OFFSET,
XIO3130_SSVID_SVID, XIO3130_SSVID_SSID);
if (rc < 0) {
goto err_bridge;
}
rc = pcie_cap_init(d, XIO3130_EXP_OFFSET, PCI_EXP_TYPE_DOWNSTREAM,
p->port);
if (rc < 0) {
goto err_msi;
}
pcie_cap_flr_init(d);
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) {
goto err_pcie_cap;
}
pcie_cap_ari_init(d);
rc = pcie_aer_init(d, XIO3130_AER_OFFSET);
if (rc < 0) {
goto err;
}
return 0;
err:
pcie_chassis_del_slot(s);
err_pcie_cap:
pcie_cap_exit(d);
err_msi:
msi_uninit(d);
err_bridge:
pci_bridge_exitfn(d);
return rc;
}
static void xio3130_downstream_exitfn(PCIDevice *d)
{
PCIBridge* br = DO_UPCAST(PCIBridge, dev, d);
PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
PCIESlot *s = DO_UPCAST(PCIESlot, port, p);
pcie_aer_exit(d);
pcie_chassis_del_slot(s);
pcie_cap_exit(d);
msi_uninit(d);
pci_bridge_exitfn(d);
}
PCIESlot *xio3130_downstream_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,
"xio3130-downstream");
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_xio3130_downstream = {
.name = "xio3130-express-downstream-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),
VMSTATE_STRUCT(port.br.dev.exp.aer_log, PCIESlot, 0,
vmstate_pcie_aer_log, PCIEAERLog),
VMSTATE_END_OF_LIST()
}
};
static Property xio3130_downstream_properties[] = {
DEFINE_PROP_UINT8("port", PCIESlot, port.port, 0),
DEFINE_PROP_UINT8("chassis", PCIESlot, chassis, 0),
DEFINE_PROP_UINT16("slot", PCIESlot, slot, 0),
DEFINE_PROP_UINT16("aer_log_max", PCIESlot,
port.br.dev.exp.aer_log.log_max,
PCIE_AER_LOG_MAX_DEFAULT),
DEFINE_PROP_END_OF_LIST(),
};
static void xio3130_downstream_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->is_express = 1;
k->is_bridge = 1;
k->config_write = xio3130_downstream_write_config;
k->init = xio3130_downstream_initfn;
k->exit = xio3130_downstream_exitfn;
k->vendor_id = PCI_VENDOR_ID_TI;
k->device_id = PCI_DEVICE_ID_TI_XIO3130D;
k->revision = XIO3130_REVISION;
dc->desc = "TI X3130 Downstream Port of PCI Express Switch";
dc->reset = xio3130_downstream_reset;
dc->vmsd = &vmstate_xio3130_downstream;
dc->props = xio3130_downstream_properties;
}
static const TypeInfo xio3130_downstream_info = {
.name = "xio3130-downstream",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIESlot),
.class_init = xio3130_downstream_class_init,
};
static void xio3130_downstream_register_types(void)
{
type_register_static(&xio3130_downstream_info);
}
type_init(xio3130_downstream_register_types)
/*
* Local variables:
* c-indent-level: 4
* c-basic-offset: 4
* tab-width: 8
* indent-tab-mode: nil
* End:
*/
|
