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1/*
2 * QEMU Common PCI Host bridge configuration data space access routines.
3 *
4 * Copyright (c) 2006 Fabrice Bellard
5fafdf24 5 *
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6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25/* Worker routines for a PCI host controller that uses an {address,data}
26 register pair to access PCI configuration space. */
27
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28#ifndef PCI_HOST_H
29#define PCI_HOST_H
8026037b 30
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31#include "sysbus.h"
32
fb47a2e9 33struct PCIHostState {
8a14daa5 34 SysBusDevice busdev;
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35 MemoryRegion conf_mem;
36 MemoryRegion data_mem;
f81138ce 37 MemoryRegion mmcfg;
1e39101c 38 MemoryRegion *address_space;
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39 uint32_t config_reg;
40 PCIBus *bus;
fb47a2e9 41};
502a5395 42
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43/* common internal helpers for PCI/PCIe hosts, cut off overflows */
44void pci_host_config_write_common(PCIDevice *pci_dev, uint32_t addr,
45 uint32_t limit, uint32_t val, uint32_t len);
46uint32_t pci_host_config_read_common(PCIDevice *pci_dev, uint32_t addr,
47 uint32_t limit, uint32_t len);
48
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49void pci_data_write(PCIBus *s, uint32_t addr, uint32_t val, int len);
50uint32_t pci_data_read(PCIBus *s, uint32_t addr, int len);
51
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52extern const MemoryRegionOps pci_host_conf_le_ops;
53extern const MemoryRegionOps pci_host_conf_be_ops;
54extern const MemoryRegionOps pci_host_data_le_ops;
55extern const MemoryRegionOps pci_host_data_be_ops;
502a5395 56
4f5e19e6 57#endif /* PCI_HOST_H */