7588e2b055
The host_buses list is an odd structure - a list of pointers to PCI root buses existing in parallel to the normal qdev tree structure. This patch removes it, instead putting the link pointers into the PCIHostState structure, which have a 1:1 relationship to PCIHostBus structures anyway. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
74 lines
2.8 KiB
C
74 lines
2.8 KiB
C
/*
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* QEMU Common PCI Host bridge configuration data space access routines.
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*
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* Copyright (c) 2006 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/* Worker routines for a PCI host controller that uses an {address,data}
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register pair to access PCI configuration space. */
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#ifndef PCI_HOST_H
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#define PCI_HOST_H
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#include "hw/sysbus.h"
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#define TYPE_PCI_HOST_BRIDGE "pci-host-bridge"
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#define PCI_HOST_BRIDGE(obj) \
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OBJECT_CHECK(PCIHostState, (obj), TYPE_PCI_HOST_BRIDGE)
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#define PCI_HOST_BRIDGE_CLASS(klass) \
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OBJECT_CLASS_CHECK(PCIHostBridgeClass, (klass), TYPE_PCI_HOST_BRIDGE)
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#define PCI_HOST_BRIDGE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(PCIHostBridgeClass, (obj), TYPE_PCI_HOST_BRIDGE)
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struct PCIHostState {
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SysBusDevice busdev;
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MemoryRegion conf_mem;
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MemoryRegion data_mem;
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MemoryRegion mmcfg;
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uint32_t config_reg;
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PCIBus *bus;
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QLIST_ENTRY(PCIHostState) next;
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};
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typedef struct PCIHostBridgeClass {
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SysBusDeviceClass parent_class;
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const char *(*root_bus_path)(PCIHostState *, PCIBus *);
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} PCIHostBridgeClass;
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/* common internal helpers for PCI/PCIe hosts, cut off overflows */
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void pci_host_config_write_common(PCIDevice *pci_dev, uint32_t addr,
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uint32_t limit, uint32_t val, uint32_t len);
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uint32_t pci_host_config_read_common(PCIDevice *pci_dev, uint32_t addr,
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uint32_t limit, uint32_t len);
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void pci_data_write(PCIBus *s, uint32_t addr, uint32_t val, int len);
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uint32_t pci_data_read(PCIBus *s, uint32_t addr, int len);
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extern const MemoryRegionOps pci_host_conf_le_ops;
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extern const MemoryRegionOps pci_host_conf_be_ops;
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extern const MemoryRegionOps pci_host_data_le_ops;
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extern const MemoryRegionOps pci_host_data_be_ops;
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#endif /* PCI_HOST_H */
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