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faf1e708 IY |
1 | /* |
2 | * xio3130_upstream.c | |
3 | * TI X3130 pci express upstream port switch | |
4 | * | |
5 | * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp> | |
6 | * VA Linux Systems Japan K.K. | |
7 | * | |
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. | |
12 | * | |
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. | |
17 | * | |
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/>. | |
20 | */ | |
21 | ||
22 | #include "pci_ids.h" | |
23 | #include "msi.h" | |
24 | #include "pcie.h" | |
25 | #include "xio3130_upstream.h" | |
26 | ||
27 | #define PCI_DEVICE_ID_TI_XIO3130U 0x8232 /* upstream port */ | |
28 | #define XIO3130_REVISION 0x2 | |
29 | #define XIO3130_MSI_OFFSET 0x70 | |
30 | #define XIO3130_MSI_SUPPORTED_FLAGS PCI_MSI_FLAGS_64BIT | |
31 | #define XIO3130_MSI_NR_VECTOR 1 | |
32 | #define XIO3130_SSVID_OFFSET 0x80 | |
33 | #define XIO3130_SSVID_SVID 0 | |
34 | #define XIO3130_SSVID_SSID 0 | |
35 | #define XIO3130_EXP_OFFSET 0x90 | |
36 | #define XIO3130_AER_OFFSET 0x100 | |
37 | ||
38 | static void xio3130_upstream_write_config(PCIDevice *d, uint32_t address, | |
39 | uint32_t val, int len) | |
40 | { | |
41 | pci_bridge_write_config(d, address, val, len); | |
42 | pcie_cap_flr_write_config(d, address, val, len); | |
43 | msi_write_config(d, address, val, len); | |
a158f92f | 44 | pcie_aer_write_config(d, address, val, len); |
faf1e708 IY |
45 | } |
46 | ||
47 | static void xio3130_upstream_reset(DeviceState *qdev) | |
48 | { | |
49 | PCIDevice *d = DO_UPCAST(PCIDevice, qdev, qdev); | |
50 | msi_reset(d); | |
51 | pci_bridge_reset(qdev); | |
52 | pcie_cap_deverr_reset(d); | |
53 | } | |
54 | ||
55 | static int xio3130_upstream_initfn(PCIDevice *d) | |
56 | { | |
57 | PCIBridge* br = DO_UPCAST(PCIBridge, dev, d); | |
58 | PCIEPort *p = DO_UPCAST(PCIEPort, br, br); | |
59 | int rc; | |
a158f92f | 60 | int tmp; |
faf1e708 IY |
61 | |
62 | rc = pci_bridge_initfn(d); | |
63 | if (rc < 0) { | |
64 | return rc; | |
65 | } | |
66 | ||
67 | pcie_port_init_reg(d); | |
68 | pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_TI); | |
69 | pci_config_set_device_id(d->config, PCI_DEVICE_ID_TI_XIO3130U); | |
70 | d->config[PCI_REVISION_ID] = XIO3130_REVISION; | |
71 | ||
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); | |
75 | if (rc < 0) { | |
a158f92f | 76 | goto err_bridge; |
faf1e708 IY |
77 | } |
78 | rc = pci_bridge_ssvid_init(d, XIO3130_SSVID_OFFSET, | |
79 | XIO3130_SSVID_SVID, XIO3130_SSVID_SSID); | |
80 | if (rc < 0) { | |
a158f92f | 81 | goto err_bridge; |
faf1e708 IY |
82 | } |
83 | rc = pcie_cap_init(d, XIO3130_EXP_OFFSET, PCI_EXP_TYPE_UPSTREAM, | |
84 | p->port); | |
85 | if (rc < 0) { | |
a158f92f | 86 | goto err_msi; |
faf1e708 | 87 | } |
faf1e708 | 88 | pcie_cap_flr_init(d); |
faf1e708 | 89 | pcie_cap_deverr_init(d); |
a158f92f IY |
90 | rc = pcie_aer_init(d, XIO3130_AER_OFFSET); |
91 | if (rc < 0) { | |
92 | goto err; | |
93 | } | |
faf1e708 IY |
94 | |
95 | return 0; | |
a158f92f IY |
96 | |
97 | err: | |
98 | pcie_cap_exit(d); | |
99 | err_msi: | |
100 | msi_uninit(d); | |
101 | err_bridge: | |
102 | tmp = pci_bridge_exitfn(d); | |
103 | assert(!tmp); | |
104 | return rc; | |
faf1e708 IY |
105 | } |
106 | ||
107 | static int xio3130_upstream_exitfn(PCIDevice *d) | |
108 | { | |
a158f92f | 109 | pcie_aer_exit(d); |
faf1e708 | 110 | pcie_cap_exit(d); |
a158f92f | 111 | msi_uninit(d); |
faf1e708 IY |
112 | return pci_bridge_exitfn(d); |
113 | } | |
114 | ||
115 | PCIEPort *xio3130_upstream_init(PCIBus *bus, int devfn, bool multifunction, | |
116 | const char *bus_name, pci_map_irq_fn map_irq, | |
117 | uint8_t port) | |
118 | { | |
119 | PCIDevice *d; | |
120 | PCIBridge *br; | |
121 | DeviceState *qdev; | |
122 | ||
123 | d = pci_create_multifunction(bus, devfn, multifunction, "x3130-upstream"); | |
124 | if (!d) { | |
125 | return NULL; | |
126 | } | |
127 | br = DO_UPCAST(PCIBridge, dev, d); | |
128 | ||
129 | qdev = &br->dev.qdev; | |
130 | pci_bridge_map_irq(br, bus_name, map_irq); | |
131 | qdev_prop_set_uint8(qdev, "port", port); | |
132 | qdev_init_nofail(qdev); | |
133 | ||
134 | return DO_UPCAST(PCIEPort, br, br); | |
135 | } | |
136 | ||
137 | static const VMStateDescription vmstate_xio3130_upstream = { | |
138 | .name = "xio3130-express-upstream-port", | |
139 | .version_id = 1, | |
140 | .minimum_version_id = 1, | |
141 | .minimum_version_id_old = 1, | |
142 | .fields = (VMStateField[]) { | |
143 | VMSTATE_PCIE_DEVICE(br.dev, PCIEPort), | |
a158f92f IY |
144 | VMSTATE_STRUCT(br.dev.exp.aer_log, PCIEPort, 0, vmstate_pcie_aer_log, |
145 | PCIEAERLog), | |
faf1e708 IY |
146 | VMSTATE_END_OF_LIST() |
147 | } | |
148 | }; | |
149 | ||
150 | static PCIDeviceInfo xio3130_upstream_info = { | |
151 | .qdev.name = "x3130-upstream", | |
152 | .qdev.desc = "TI X3130 Upstream Port of PCI Express Switch", | |
153 | .qdev.size = sizeof(PCIEPort), | |
154 | .qdev.reset = xio3130_upstream_reset, | |
155 | .qdev.vmsd = &vmstate_xio3130_upstream, | |
156 | ||
157 | .is_express = 1, | |
158 | .is_bridge = 1, | |
159 | .config_write = xio3130_upstream_write_config, | |
160 | .init = xio3130_upstream_initfn, | |
161 | .exit = xio3130_upstream_exitfn, | |
162 | ||
163 | .qdev.props = (Property[]) { | |
164 | DEFINE_PROP_UINT8("port", PCIEPort, port, 0), | |
a158f92f IY |
165 | DEFINE_PROP_UINT16("aer_log_max", PCIEPort, br.dev.exp.aer_log.log_max, |
166 | PCIE_AER_LOG_MAX_DEFAULT), | |
faf1e708 IY |
167 | DEFINE_PROP_END_OF_LIST(), |
168 | } | |
169 | }; | |
170 | ||
171 | static void xio3130_upstream_register(void) | |
172 | { | |
173 | pci_qdev_register(&xio3130_upstream_info); | |
174 | } | |
175 | ||
176 | device_init(xio3130_upstream_register); | |
177 | ||
178 | ||
179 | /* | |
180 | * Local variables: | |
181 | * c-indent-level: 4 | |
182 | * c-basic-offset: 4 | |
183 | * tab-width: 8 | |
184 | * indent-tab-mode: nil | |
185 | * End: | |
186 | */ |