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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 "xio3130_upstream.h"
27
28#define PCI_DEVICE_ID_TI_XIO3130U 0x8232
29#define XIO3130_REVISION 0x2
30#define XIO3130_MSI_OFFSET 0x70
31#define XIO3130_MSI_SUPPORTED_FLAGS PCI_MSI_FLAGS_64BIT
32#define XIO3130_MSI_NR_VECTOR 1
33#define XIO3130_SSVID_OFFSET 0x80
34#define XIO3130_SSVID_SVID 0
35#define XIO3130_SSVID_SSID 0
36#define XIO3130_EXP_OFFSET 0x90
37#define XIO3130_AER_OFFSET 0x100
38
39static void xio3130_upstream_write_config(PCIDevice *d, uint32_t address,
40 uint32_t val, int len)
41{
42 pci_bridge_write_config(d, address, val, len);
43 pcie_cap_flr_write_config(d, address, val, len);
44 pcie_aer_write_config(d, address, val, len);
45}
46
47static void xio3130_upstream_reset(DeviceState *qdev)
48{
49 PCIDevice *d = PCI_DEVICE(qdev);
50
51 pci_bridge_reset(qdev);
52 pcie_cap_deverr_reset(d);
53}
54
55static void xio3130_upstream_realize(PCIDevice *d, Error **errp)
56{
57 PCIEPort *p = PCIE_PORT(d);
58 int rc;
59
60 pci_bridge_initfn(d, TYPE_PCIE_BUS);
61 pcie_port_init_reg(d);
62
63 rc = msi_init(d, XIO3130_MSI_OFFSET, XIO3130_MSI_NR_VECTOR,
64 XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_64BIT,
65 XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_MASKBIT,
66 errp);
67 if (rc < 0) {
68 assert(rc == -ENOTSUP);
69 goto err_bridge;
70 }
71
72 rc = pci_bridge_ssvid_init(d, XIO3130_SSVID_OFFSET,
73 XIO3130_SSVID_SVID, XIO3130_SSVID_SSID,
74 errp);
75 if (rc < 0) {
76 goto err_bridge;
77 }
78
79 rc = pcie_cap_init(d, XIO3130_EXP_OFFSET, PCI_EXP_TYPE_UPSTREAM,
80 p->port, errp);
81 if (rc < 0) {
82 goto err_msi;
83 }
84 pcie_cap_flr_init(d);
85 pcie_cap_deverr_init(d);
86
87 rc = pcie_aer_init(d, PCI_ERR_VER, XIO3130_AER_OFFSET,
88 PCI_ERR_SIZEOF, errp);
89 if (rc < 0) {
90 goto err;
91 }
92
93 return;
94
95err:
96 pcie_cap_exit(d);
97err_msi:
98 msi_uninit(d);
99err_bridge:
100 pci_bridge_exitfn(d);
101}
102
103static void xio3130_upstream_exitfn(PCIDevice *d)
104{
105 pcie_aer_exit(d);
106 pcie_cap_exit(d);
107 msi_uninit(d);
108 pci_bridge_exitfn(d);
109}
110
111PCIEPort *xio3130_upstream_init(PCIBus *bus, int devfn, bool multifunction,
112 const char *bus_name, pci_map_irq_fn map_irq,
113 uint8_t port)
114{
115 PCIDevice *d;
116 PCIBridge *br;
117 DeviceState *qdev;
118
119 d = pci_create_multifunction(bus, devfn, multifunction, "x3130-upstream");
120 if (!d) {
121 return NULL;
122 }
123 br = PCI_BRIDGE(d);
124
125 qdev = DEVICE(d);
126 pci_bridge_map_irq(br, bus_name, map_irq);
127 qdev_prop_set_uint8(qdev, "port", port);
128 qdev_init_nofail(qdev);
129
130 return PCIE_PORT(d);
131}
132
133static const VMStateDescription vmstate_xio3130_upstream = {
134 .name = "xio3130-express-upstream-port",
135 .priority = MIG_PRI_PCI_BUS,
136 .version_id = 1,
137 .minimum_version_id = 1,
138 .fields = (VMStateField[]) {
139 VMSTATE_PCI_DEVICE(parent_obj.parent_obj, PCIEPort),
140 VMSTATE_STRUCT(parent_obj.parent_obj.exp.aer_log, PCIEPort, 0,
141 vmstate_pcie_aer_log, PCIEAERLog),
142 VMSTATE_END_OF_LIST()
143 }
144};
145
146static void xio3130_upstream_class_init(ObjectClass *klass, void *data)
147{
148 DeviceClass *dc = DEVICE_CLASS(klass);
149 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
150
151 k->is_bridge = 1;
152 k->config_write = xio3130_upstream_write_config;
153 k->realize = xio3130_upstream_realize;
154 k->exit = xio3130_upstream_exitfn;
155 k->vendor_id = PCI_VENDOR_ID_TI;
156 k->device_id = PCI_DEVICE_ID_TI_XIO3130U;
157 k->revision = XIO3130_REVISION;
158 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
159 dc->desc = "TI X3130 Upstream Port of PCI Express Switch";
160 dc->reset = xio3130_upstream_reset;
161 dc->vmsd = &vmstate_xio3130_upstream;
162}
163
164static const TypeInfo xio3130_upstream_info = {
165 .name = "x3130-upstream",
166 .parent = TYPE_PCIE_PORT,
167 .class_init = xio3130_upstream_class_init,
168 .interfaces = (InterfaceInfo[]) {
169 { INTERFACE_PCIE_DEVICE },
170 { }
171 },
172};
173
174static void xio3130_upstream_register_types(void)
175{
176 type_register_static(&xio3130_upstream_info);
177}
178
179type_init(xio3130_upstream_register_types)
180