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Diffstat (limited to 'qemu/hw/pci-bridge/xio3130_upstream.c')
-rw-r--r--qemu/hw/pci-bridge/xio3130_upstream.c182
1 files changed, 182 insertions, 0 deletions
diff --git a/qemu/hw/pci-bridge/xio3130_upstream.c b/qemu/hw/pci-bridge/xio3130_upstream.c
new file mode 100644
index 000000000..eada5828a
--- /dev/null
+++ b/qemu/hw/pci-bridge/xio3130_upstream.c
@@ -0,0 +1,182 @@
+/*
+ * xio3130_upstream.c
+ * TI X3130 pci express upstream port switch
+ *
+ * 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 "xio3130_upstream.h"
+
+#define PCI_DEVICE_ID_TI_XIO3130U 0x8232 /* upstream port */
+#define XIO3130_REVISION 0x2
+#define XIO3130_MSI_OFFSET 0x70
+#define XIO3130_MSI_SUPPORTED_FLAGS PCI_MSI_FLAGS_64BIT
+#define XIO3130_MSI_NR_VECTOR 1
+#define XIO3130_SSVID_OFFSET 0x80
+#define XIO3130_SSVID_SVID 0
+#define XIO3130_SSVID_SSID 0
+#define XIO3130_EXP_OFFSET 0x90
+#define XIO3130_AER_OFFSET 0x100
+
+static void xio3130_upstream_write_config(PCIDevice *d, uint32_t address,
+ uint32_t val, int len)
+{
+ pci_bridge_write_config(d, address, val, len);
+ pcie_cap_flr_write_config(d, address, val, len);
+ pcie_aer_write_config(d, address, val, len);
+}
+
+static void xio3130_upstream_reset(DeviceState *qdev)
+{
+ PCIDevice *d = PCI_DEVICE(qdev);
+
+ pci_bridge_reset(qdev);
+ pcie_cap_deverr_reset(d);
+}
+
+static int xio3130_upstream_initfn(PCIDevice *d)
+{
+ PCIEPort *p = PCIE_PORT(d);
+ int rc;
+
+ rc = pci_bridge_initfn(d, TYPE_PCIE_BUS);
+ if (rc < 0) {
+ return rc;
+ }
+
+ pcie_port_init_reg(d);
+
+ rc = msi_init(d, XIO3130_MSI_OFFSET, XIO3130_MSI_NR_VECTOR,
+ XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_64BIT,
+ XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_MASKBIT);
+ if (rc < 0) {
+ goto err_bridge;
+ }
+ rc = pci_bridge_ssvid_init(d, XIO3130_SSVID_OFFSET,
+ XIO3130_SSVID_SVID, XIO3130_SSVID_SSID);
+ if (rc < 0) {
+ goto err_bridge;
+ }
+ rc = pcie_cap_init(d, XIO3130_EXP_OFFSET, PCI_EXP_TYPE_UPSTREAM,
+ p->port);
+ if (rc < 0) {
+ goto err_msi;
+ }
+ pcie_cap_flr_init(d);
+ pcie_cap_deverr_init(d);
+ rc = pcie_aer_init(d, XIO3130_AER_OFFSET);
+ if (rc < 0) {
+ goto err;
+ }
+
+ return 0;
+
+err:
+ pcie_cap_exit(d);
+err_msi:
+ msi_uninit(d);
+err_bridge:
+ pci_bridge_exitfn(d);
+ return rc;
+}
+
+static void xio3130_upstream_exitfn(PCIDevice *d)
+{
+ pcie_aer_exit(d);
+ pcie_cap_exit(d);
+ msi_uninit(d);
+ pci_bridge_exitfn(d);
+}
+
+PCIEPort *xio3130_upstream_init(PCIBus *bus, int devfn, bool multifunction,
+ const char *bus_name, pci_map_irq_fn map_irq,
+ uint8_t port)
+{
+ PCIDevice *d;
+ PCIBridge *br;
+ DeviceState *qdev;
+
+ d = pci_create_multifunction(bus, devfn, multifunction, "x3130-upstream");
+ 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_init_nofail(qdev);
+
+ return PCIE_PORT(d);
+}
+
+static const VMStateDescription vmstate_xio3130_upstream = {
+ .name = "xio3130-express-upstream-port",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCIE_DEVICE(parent_obj.parent_obj, PCIEPort),
+ VMSTATE_STRUCT(parent_obj.parent_obj.exp.aer_log, PCIEPort, 0,
+ vmstate_pcie_aer_log, PCIEAERLog),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void xio3130_upstream_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 = xio3130_upstream_write_config;
+ k->init = xio3130_upstream_initfn;
+ k->exit = xio3130_upstream_exitfn;
+ k->vendor_id = PCI_VENDOR_ID_TI;
+ k->device_id = PCI_DEVICE_ID_TI_XIO3130U;
+ k->revision = XIO3130_REVISION;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+ dc->desc = "TI X3130 Upstream Port of PCI Express Switch";
+ dc->reset = xio3130_upstream_reset;
+ dc->vmsd = &vmstate_xio3130_upstream;
+}
+
+static const TypeInfo xio3130_upstream_info = {
+ .name = "x3130-upstream",
+ .parent = TYPE_PCIE_PORT,
+ .class_init = xio3130_upstream_class_init,
+};
+
+static void xio3130_upstream_register_types(void)
+{
+ type_register_static(&xio3130_upstream_info);
+}
+
+type_init(xio3130_upstream_register_types)
+
+
+/*
+ * Local variables:
+ * c-indent-level: 4
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tab-mode: nil
+ * End:
+ */