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
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
/*
* 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 "hw/pci/pci_ids.h"
#include "hw/pci/msi.h"
#include "hw/pci/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
/*
* If two MSI vector are allocated, Advanced Error Interrupt Message Number
* is 1. otherwise 0.
* 17.12.5.10 RPERRSTS, 32:27 bit Advanced Error Interrupt Message Number.
*/
static uint8_t ioh3420_aer_vector(const PCIDevice *d)
{
switch (msi_nr_vectors_allocated(d)) {
case 1:
return 0;
case 2:
return 1;
case 4:
case 8:
case 16:
case 32:
default:
break;
}
abort();
return 0;
}
static void ioh3420_aer_vector_update(PCIDevice *d)
{
pcie_aer_root_set_vector(d, ioh3420_aer_vector(d));
}
static void ioh3420_write_config(PCIDevice *d,
uint32_t address, uint32_t val, int len)
{
uint32_t root_cmd =
pci_get_long(d->config + d->exp.aer_cap + PCI_ERR_ROOT_COMMAND);
pci_bridge_write_config(d, address, val, len);
ioh3420_aer_vector_update(d);
pcie_cap_slot_write_config(d, address, val, len);
pcie_aer_write_config(d, address, val, len);
pcie_aer_root_write_config(d, address, val, len, root_cmd);
}
static void ioh3420_reset(DeviceState *qdev)
{
PCIDevice *d = PCI_DEVICE(qdev);
ioh3420_aer_vector_update(d);
pcie_cap_root_reset(d);
pcie_cap_deverr_reset(d);
pcie_cap_slot_reset(d);
pcie_aer_root_reset(d);
pci_bridge_reset(qdev);
pci_bridge_disable_base_limit(d);
}
static int ioh3420_initfn(PCIDevice *d)
{
PCIEPort *p = PCIE_PORT(d);
PCIESlot *s = PCIE_SLOT(d);
int rc;
rc = pci_bridge_initfn(d, TYPE_PCIE_BUS);
if (rc < 0) {
return rc;
}
pcie_port_init_reg(d);
rc = pci_bridge_ssvid_init(d, IOH_EP_SSVID_OFFSET,
IOH_EP_SSVID_SVID, IOH_EP_SSVID_SSID);
if (rc < 0) {
goto err_bridge;
}
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) {
goto err_bridge;
}
rc = pcie_cap_init(d, IOH_EP_EXP_OFFSET, PCI_EXP_TYPE_ROOT_PORT, p->port);
if (rc < 0) {
goto err_msi;
}
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_root_init(d);
rc = pcie_aer_init(d, IOH_EP_AER_OFFSET);
if (rc < 0) {
goto err;
}
pcie_aer_root_init(d);
ioh3420_aer_vector_update(d);
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 ioh3420_exitfn(PCIDevice *d)
{
PCIESlot *s = PCIE_SLOT(d);
pcie_aer_exit(d);
pcie_chassis_del_slot(s);
pcie_cap_exit(d);
msi_uninit(d);
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 = PCI_BRIDGE(d);
qdev = DEVICE(d);
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 PCIE_SLOT(d);
}
static Property ioh3420_props[] = {
DEFINE_PROP_BIT(COMPAT_PROP_PCP, PCIDevice, cap_present,
QEMU_PCIE_SLTCAP_PCP_BITNR, true),
DEFINE_PROP_END_OF_LIST()
};
static const VMStateDescription vmstate_ioh3420 = {
.name = "ioh-3240-express-root-port",
.version_id = 1,
.minimum_version_id = 1,
.post_load = pcie_cap_slot_post_load,
.fields = (VMStateField[]) {
VMSTATE_PCIE_DEVICE(parent_obj.parent_obj.parent_obj, PCIESlot),
VMSTATE_STRUCT(parent_obj.parent_obj.parent_obj.exp.aer_log,
PCIESlot, 0, vmstate_pcie_aer_log, PCIEAERLog),
VMSTATE_END_OF_LIST()
}
};
static void ioh3420_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 = ioh3420_write_config;
k->init = ioh3420_initfn;
k->exit = ioh3420_exitfn;
k->vendor_id = PCI_VENDOR_ID_INTEL;
k->device_id = PCI_DEVICE_ID_IOH_EPORT;
k->revision = PCI_DEVICE_ID_IOH_REV;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->desc = "Intel IOH device id 3420 PCIE Root Port";
dc->reset = ioh3420_reset;
dc->vmsd = &vmstate_ioh3420;
dc->props = ioh3420_props;
}
static const TypeInfo ioh3420_info = {
.name = "ioh3420",
.parent = TYPE_PCIE_SLOT,
.class_init = ioh3420_class_init,
};
static void ioh3420_register_types(void)
{
type_register_static(&ioh3420_info);
}
type_init(ioh3420_register_types)
/*
* Local variables:
* c-indent-level: 4
* c-basic-offset: 4
* tab-width: 8
* indent-tab-mode: nil
* End:
*/
|
