xref: /openbmc/qemu/include/hw/s390x/s390_flic.h (revision bfb27e60)
1 /*
2  * QEMU S390x floating interrupt controller (flic)
3  *
4  * Copyright 2014 IBM Corp.
5  * Author(s): Jens Freimann <jfrei@linux.vnet.ibm.com>
6  *            Cornelia Huck <cornelia.huck@de.ibm.com>
7  *
8  * This work is licensed under the terms of the GNU GPL, version 2 or (at
9  * your option) any later version. See the COPYING file in the top-level
10  * directory.
11  */
12 
13 #ifndef __HW_S390_FLIC_H
14 #define __HW_S390_FLIC_H
15 
16 #include "hw/sysbus.h"
17 #include "hw/s390x/adapter.h"
18 #include "hw/virtio/virtio.h"
19 
20 typedef struct AdapterRoutes {
21     AdapterInfo adapter;
22     int num_routes;
23     int gsi[VIRTIO_PCI_QUEUE_MAX];
24 } AdapterRoutes;
25 
26 #define TYPE_S390_FLIC_COMMON "s390-flic"
27 #define S390_FLIC_COMMON(obj) \
28     OBJECT_CHECK(S390FLICState, (obj), TYPE_S390_FLIC_COMMON)
29 
30 typedef struct S390FLICState {
31     SysBusDevice parent_obj;
32 
33 } S390FLICState;
34 
35 #define S390_FLIC_COMMON_CLASS(klass) \
36     OBJECT_CLASS_CHECK(S390FLICStateClass, (klass), TYPE_S390_FLIC_COMMON)
37 #define S390_FLIC_COMMON_GET_CLASS(obj) \
38     OBJECT_GET_CLASS(S390FLICStateClass, (obj), TYPE_S390_FLIC_COMMON)
39 
40 typedef struct S390FLICStateClass {
41     DeviceClass parent_class;
42 
43     int (*register_io_adapter)(S390FLICState *fs, uint32_t id, uint8_t isc,
44                                bool swap, bool maskable);
45     int (*io_adapter_map)(S390FLICState *fs, uint32_t id, uint64_t map_addr,
46                           bool do_map);
47     int (*add_adapter_routes)(S390FLICState *fs, AdapterRoutes *routes);
48     void (*release_adapter_routes)(S390FLICState *fs, AdapterRoutes *routes);
49 } S390FLICStateClass;
50 
51 #define TYPE_KVM_S390_FLIC "s390-flic-kvm"
52 #define KVM_S390_FLIC(obj) \
53     OBJECT_CHECK(KVMS390FLICState, (obj), TYPE_KVM_S390_FLIC)
54 
55 #define TYPE_QEMU_S390_FLIC "s390-flic-qemu"
56 #define QEMU_S390_FLIC(obj) \
57     OBJECT_CHECK(QEMUS390FLICState, (obj), TYPE_QEMU_S390_FLIC)
58 
59 typedef struct QEMUS390FLICState {
60     S390FLICState parent_obj;
61 } QEMUS390FLICState;
62 
63 void s390_flic_init(void);
64 
65 S390FLICState *s390_get_flic(void);
66 
67 #ifdef CONFIG_KVM
68 DeviceState *s390_flic_kvm_create(void);
69 #else
70 static inline DeviceState *s390_flic_kvm_create(void)
71 {
72     return NULL;
73 }
74 #endif
75 
76 #endif /* __HW_S390_FLIC_H */
77