apic: move target-dependent definitions to cpu.h
[qemu.git] / include / hw / pci / pci_host.h
1 /*
2 * QEMU Common PCI Host bridge configuration data space access routines.
3 *
4 * Copyright (c) 2006 Fabrice Bellard
5 *
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
28 #ifndef PCI_HOST_H
29 #define PCI_HOST_H
30
31 #include "hw/sysbus.h"
32
33 #define TYPE_PCI_HOST_BRIDGE "pci-host-bridge"
34 #define PCI_HOST_BRIDGE(obj) \
35 OBJECT_CHECK(PCIHostState, (obj), TYPE_PCI_HOST_BRIDGE)
36 #define PCI_HOST_BRIDGE_CLASS(klass) \
37 OBJECT_CLASS_CHECK(PCIHostBridgeClass, (klass), TYPE_PCI_HOST_BRIDGE)
38 #define PCI_HOST_BRIDGE_GET_CLASS(obj) \
39 OBJECT_GET_CLASS(PCIHostBridgeClass, (obj), TYPE_PCI_HOST_BRIDGE)
40
41 struct PCIHostState {
42 SysBusDevice busdev;
43
44 MemoryRegion conf_mem;
45 MemoryRegion data_mem;
46 MemoryRegion mmcfg;
47 uint32_t config_reg;
48 PCIBus *bus;
49
50 QLIST_ENTRY(PCIHostState) next;
51 };
52
53 typedef struct PCIHostBridgeClass {
54 SysBusDeviceClass parent_class;
55
56 const char *(*root_bus_path)(PCIHostState *, PCIBus *);
57 } PCIHostBridgeClass;
58
59 /* common internal helpers for PCI/PCIe hosts, cut off overflows */
60 void pci_host_config_write_common(PCIDevice *pci_dev, uint32_t addr,
61 uint32_t limit, uint32_t val, uint32_t len);
62 uint32_t pci_host_config_read_common(PCIDevice *pci_dev, uint32_t addr,
63 uint32_t limit, uint32_t len);
64
65 void pci_data_write(PCIBus *s, uint32_t addr, uint32_t val, int len);
66 uint32_t pci_data_read(PCIBus *s, uint32_t addr, int len);
67
68 extern const MemoryRegionOps pci_host_conf_le_ops;
69 extern const MemoryRegionOps pci_host_conf_be_ops;
70 extern const MemoryRegionOps pci_host_data_le_ops;
71 extern const MemoryRegionOps pci_host_data_be_ops;
72
73 #endif /* PCI_HOST_H */