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1.1 root 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);
44: pcie_aer_write_config(d, address, val, len);
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;
60: int tmp;
61:
62: rc = pci_bridge_initfn(d);
63: if (rc < 0) {
64: return rc;
65: }
66:
67: pcie_port_init_reg(d);
68:
69: rc = msi_init(d, XIO3130_MSI_OFFSET, XIO3130_MSI_NR_VECTOR,
70: XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_64BIT,
71: XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_MASKBIT);
72: if (rc < 0) {
73: goto err_bridge;
74: }
75: rc = pci_bridge_ssvid_init(d, XIO3130_SSVID_OFFSET,
76: XIO3130_SSVID_SVID, XIO3130_SSVID_SSID);
77: if (rc < 0) {
78: goto err_bridge;
79: }
80: rc = pcie_cap_init(d, XIO3130_EXP_OFFSET, PCI_EXP_TYPE_UPSTREAM,
81: p->port);
82: if (rc < 0) {
83: goto err_msi;
84: }
85: pcie_cap_flr_init(d);
86: pcie_cap_deverr_init(d);
87: rc = pcie_aer_init(d, XIO3130_AER_OFFSET);
88: if (rc < 0) {
89: goto err;
90: }
91:
92: return 0;
93:
94: err:
95: pcie_cap_exit(d);
96: err_msi:
97: msi_uninit(d);
98: err_bridge:
99: tmp = pci_bridge_exitfn(d);
100: assert(!tmp);
101: return rc;
102: }
103:
104: static int xio3130_upstream_exitfn(PCIDevice *d)
105: {
106: pcie_aer_exit(d);
107: pcie_cap_exit(d);
108: msi_uninit(d);
109: return pci_bridge_exitfn(d);
110: }
111:
112: PCIEPort *xio3130_upstream_init(PCIBus *bus, int devfn, bool multifunction,
113: const char *bus_name, pci_map_irq_fn map_irq,
114: uint8_t port)
115: {
116: PCIDevice *d;
117: PCIBridge *br;
118: DeviceState *qdev;
119:
120: d = pci_create_multifunction(bus, devfn, multifunction, "x3130-upstream");
121: if (!d) {
122: return NULL;
123: }
124: br = DO_UPCAST(PCIBridge, dev, d);
125:
126: qdev = &br->dev.qdev;
127: pci_bridge_map_irq(br, bus_name, map_irq);
128: qdev_prop_set_uint8(qdev, "port", port);
129: qdev_init_nofail(qdev);
130:
131: return DO_UPCAST(PCIEPort, br, br);
132: }
133:
134: static const VMStateDescription vmstate_xio3130_upstream = {
135: .name = "xio3130-express-upstream-port",
136: .version_id = 1,
137: .minimum_version_id = 1,
138: .minimum_version_id_old = 1,
139: .fields = (VMStateField[]) {
140: VMSTATE_PCIE_DEVICE(br.dev, PCIEPort),
141: VMSTATE_STRUCT(br.dev.exp.aer_log, PCIEPort, 0, vmstate_pcie_aer_log,
142: PCIEAERLog),
143: VMSTATE_END_OF_LIST()
144: }
145: };
146:
147: static PCIDeviceInfo xio3130_upstream_info = {
148: .qdev.name = "x3130-upstream",
149: .qdev.desc = "TI X3130 Upstream Port of PCI Express Switch",
150: .qdev.size = sizeof(PCIEPort),
151: .qdev.reset = xio3130_upstream_reset,
152: .qdev.vmsd = &vmstate_xio3130_upstream,
153:
154: .is_express = 1,
155: .is_bridge = 1,
156: .config_write = xio3130_upstream_write_config,
157: .init = xio3130_upstream_initfn,
158: .exit = xio3130_upstream_exitfn,
1.1.1.2 ! root 159: .vendor_id = PCI_VENDOR_ID_TI,
! 160: .device_id = PCI_DEVICE_ID_TI_XIO3130U,
! 161: .revision = XIO3130_REVISION,
1.1 root 162:
163: .qdev.props = (Property[]) {
164: DEFINE_PROP_UINT8("port", PCIEPort, port, 0),
165: DEFINE_PROP_UINT16("aer_log_max", PCIEPort, br.dev.exp.aer_log.log_max,
166: PCIE_AER_LOG_MAX_DEFAULT),
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: */
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