4 * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
5 * VA Linux Systems Japan K.K.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, see <http://www.gnu.org/licenses/>.
21 #include "hw/pci/pcie_port.h"
23 void pcie_port_init_reg(PCIDevice
*d
)
26 66MHz and fast back to back don't apply to pci express port. */
27 pci_set_word(d
->config
+ PCI_STATUS
, 0);
28 pci_set_word(d
->config
+ PCI_SEC_STATUS
, 0);
31 * Unlike conventional pci bridge, for some bits the spec states:
32 * Does not apply to PCI Express and must be hardwired to 0.
34 pci_word_test_and_clear_mask(d
->wmask
+ PCI_BRIDGE_CONTROL
,
35 PCI_BRIDGE_CTL_MASTER_ABORT
|
36 PCI_BRIDGE_CTL_FAST_BACK
|
37 PCI_BRIDGE_CTL_DISCARD
|
38 PCI_BRIDGE_CTL_SEC_DISCARD
|
39 PCI_BRIDGE_CTL_DISCARD_STATUS
|
40 PCI_BRIDGE_CTL_DISCARD_SERR
);
43 /**************************************************************************
44 * (chassis number, pcie physical slot number) -> pcie slot conversion
49 QLIST_HEAD(, PCIESlot
) slots
;
50 QLIST_ENTRY(PCIEChassis
) next
;
53 static QLIST_HEAD(, PCIEChassis
) chassis
= QLIST_HEAD_INITIALIZER(chassis
);
55 static struct PCIEChassis
*pcie_chassis_find(uint8_t chassis_number
)
57 struct PCIEChassis
*c
;
58 QLIST_FOREACH(c
, &chassis
, next
) {
59 if (c
->number
== chassis_number
) {
66 void pcie_chassis_create(uint8_t chassis_number
)
68 struct PCIEChassis
*c
;
69 c
= pcie_chassis_find(chassis_number
);
73 c
= g_malloc0(sizeof(*c
));
74 c
->number
= chassis_number
;
75 QLIST_INIT(&c
->slots
);
76 QLIST_INSERT_HEAD(&chassis
, c
, next
);
79 static PCIESlot
*pcie_chassis_find_slot_with_chassis(struct PCIEChassis
*c
,
83 QLIST_FOREACH(s
, &c
->slots
, next
) {
84 if (s
->slot
== slot
) {
91 PCIESlot
*pcie_chassis_find_slot(uint8_t chassis_number
, uint16_t slot
)
93 struct PCIEChassis
*c
;
94 c
= pcie_chassis_find(chassis_number
);
98 return pcie_chassis_find_slot_with_chassis(c
, slot
);
101 int pcie_chassis_add_slot(struct PCIESlot
*slot
)
103 struct PCIEChassis
*c
;
104 c
= pcie_chassis_find(slot
->chassis
);
108 if (pcie_chassis_find_slot_with_chassis(c
, slot
->slot
)) {
111 QLIST_INSERT_HEAD(&c
->slots
, slot
, next
);
115 void pcie_chassis_del_slot(PCIESlot
*s
)
117 QLIST_REMOVE(s
, next
);
120 static Property pcie_port_props
[] = {
121 DEFINE_PROP_UINT8("port", PCIEPort
, port
, 0),
122 DEFINE_PROP_UINT16("aer_log_max", PCIEPort
,
123 parent_obj
.parent_obj
.exp
.aer_log
.log_max
,
124 PCIE_AER_LOG_MAX_DEFAULT
),
125 DEFINE_PROP_END_OF_LIST()
128 static void pcie_port_class_init(ObjectClass
*oc
, void *data
)
130 DeviceClass
*dc
= DEVICE_CLASS(oc
);
132 dc
->props
= pcie_port_props
;
135 static const TypeInfo pcie_port_type_info
= {
136 .name
= TYPE_PCIE_PORT
,
137 .parent
= TYPE_PCI_BRIDGE
,
138 .instance_size
= sizeof(PCIEPort
),
140 .class_init
= pcie_port_class_init
,
143 static Property pcie_slot_props
[] = {
144 DEFINE_PROP_UINT8("chassis", PCIESlot
, chassis
, 0),
145 DEFINE_PROP_UINT16("slot", PCIESlot
, slot
, 0),
146 DEFINE_PROP_END_OF_LIST()
149 static void pcie_slot_class_init(ObjectClass
*oc
, void *data
)
151 DeviceClass
*dc
= DEVICE_CLASS(oc
);
153 dc
->props
= pcie_slot_props
;
156 static const TypeInfo pcie_slot_type_info
= {
157 .name
= TYPE_PCIE_SLOT
,
158 .parent
= TYPE_PCIE_PORT
,
159 .instance_size
= sizeof(PCIESlot
),
161 .class_init
= pcie_slot_class_init
,
164 static void pcie_port_register_types(void)
166 type_register_static(&pcie_port_type_info
);
167 type_register_static(&pcie_slot_type_info
);
170 type_init(pcie_port_register_types
)