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ich9: Add i82801b11 dmi-to-pci bridge
Add the dmi-to-pci i82801b11 bridge chip. This is the pci bridge chip that q35 uses on its host bus for PCI bus arbitration. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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/* | ||
* Copyright (c) 2006 Fabrice Bellard | ||
* | ||
* Permission is hereby granted, free of charge, to any person obtaining a copy | ||
* of this software and associated documentation files (the "Software"), to deal | ||
* in the Software without restriction, including without limitation the rights | ||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
* copies of the Software, and to permit persons to whom the Software is | ||
* furnished to do so, subject to the following conditions: | ||
* | ||
* The above copyright notice and this permission notice shall be included in | ||
* all copies or substantial portions of the Software. | ||
* | ||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
* THE SOFTWARE. | ||
*/ | ||
/* | ||
* QEMU i82801b11 dmi-to-pci Bridge Emulation | ||
* | ||
* Copyright (c) 2009, 2010, 2011 | ||
* Isaku Yamahata <yamahata at valinux co jp> | ||
* VA Linux Systems Japan K.K. | ||
* Copyright (C) 2012 Jason Baron <jbaron@redhat.com> | ||
* | ||
* This library is free software; you can redistribute it and/or | ||
* modify it under the terms of the GNU Lesser General Public | ||
* License as published by the Free Software Foundation; either | ||
* version 2 of the License, or (at your option) any later version. | ||
* | ||
* This library 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 | ||
* Lesser General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU Lesser General Public | ||
* License along with this library; if not, see <http://www.gnu.org/licenses/> | ||
*/ | ||
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#include "pci.h" | ||
#include "ich9.h" | ||
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/*****************************************************************************/ | ||
/* ICH9 DMI-to-PCI bridge */ | ||
#define I82801ba_SSVID_OFFSET 0x50 | ||
#define I82801ba_SSVID_SVID 0 | ||
#define I82801ba_SSVID_SSID 0 | ||
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typedef struct I82801b11Bridge { | ||
PCIBridge br; | ||
} I82801b11Bridge; | ||
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static int i82801b11_bridge_initfn(PCIDevice *d) | ||
{ | ||
int rc; | ||
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rc = pci_bridge_initfn(d); | ||
if (rc < 0) { | ||
return rc; | ||
} | ||
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rc = pci_bridge_ssvid_init(d, I82801ba_SSVID_OFFSET, | ||
I82801ba_SSVID_SVID, I82801ba_SSVID_SSID); | ||
if (rc < 0) { | ||
goto err_bridge; | ||
} | ||
pci_config_set_prog_interface(d->config, PCI_CLASS_BRDIGE_PCI_INF_SUB); | ||
return 0; | ||
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err_bridge: | ||
pci_bridge_exitfn(d); | ||
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return rc; | ||
} | ||
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static void i82801b11_bridge_class_init(ObjectClass *klass, void *data) | ||
{ | ||
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | ||
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k->is_bridge = 1; | ||
k->vendor_id = PCI_VENDOR_ID_INTEL; | ||
k->device_id = PCI_DEVICE_ID_INTEL_82801BA_11; | ||
k->revision = ICH9_D2P_A2_REVISION; | ||
k->init = i82801b11_bridge_initfn; | ||
} | ||
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static const TypeInfo i82801b11_bridge_info = { | ||
.name = "i82801b11-bridge", | ||
.parent = TYPE_PCI_DEVICE, | ||
.instance_size = sizeof(I82801b11Bridge), | ||
.class_init = i82801b11_bridge_class_init, | ||
}; | ||
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PCIBus *ich9_d2pbr_init(PCIBus *bus, int devfn, int sec_bus) | ||
{ | ||
PCIDevice *d; | ||
PCIBridge *br; | ||
char buf[16]; | ||
DeviceState *qdev; | ||
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d = pci_create_multifunction(bus, devfn, true, "i82801b11-bridge"); | ||
if (!d) { | ||
return NULL; | ||
} | ||
br = DO_UPCAST(PCIBridge, dev, d); | ||
qdev = &br->dev.qdev; | ||
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snprintf(buf, sizeof(buf), "pci.%d", sec_bus); | ||
pci_bridge_map_irq(br, buf, pci_swizzle_map_irq_fn); | ||
qdev_init_nofail(qdev); | ||
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return pci_bridge_get_sec_bus(br); | ||
} | ||
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static void d2pbr_register(void) | ||
{ | ||
type_register_static(&i82801b11_bridge_info); | ||
} | ||
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type_init(d2pbr_register); |