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/*
* QEMU S390x floating interrupt controller (flic)
*
* Copyright 2014 IBM Corp.
* Author(s): Jens Freimann <jfrei@linux.vnet.ibm.com>
* Cornelia Huck <cornelia.huck@de.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
* your option) any later version. See the COPYING file in the top-level
* directory.
*/
#ifndef HW_S390_FLIC_H
#define HW_S390_FLIC_H
#include "hw/sysbus.h"
#include "hw/s390x/adapter.h"
#include "hw/virtio/virtio.h"
/*
* Reserve enough gsis to accommodate all virtio devices.
* If any other user of adapter routes needs more of these,
* we need to bump the value; but virtio looks like the
* maximum right now.
*/
#define ADAPTER_ROUTES_MAX_GSI VIRTIO_QUEUE_MAX
typedef struct AdapterRoutes {
AdapterInfo adapter;
int num_routes;
int gsi[ADAPTER_ROUTES_MAX_GSI];
} AdapterRoutes;
#define TYPE_S390_FLIC_COMMON "s390-flic"
#define S390_FLIC_COMMON(obj) \
OBJECT_CHECK(S390FLICState, (obj), TYPE_S390_FLIC_COMMON)
typedef struct S390FLICState {
SysBusDevice parent_obj;
/* to limit AdapterRoutes.num_routes for compat */
uint32_t adapter_routes_max_batch;
} S390FLICState;
#define S390_FLIC_COMMON_CLASS(klass) \
OBJECT_CLASS_CHECK(S390FLICStateClass, (klass), TYPE_S390_FLIC_COMMON)
#define S390_FLIC_COMMON_GET_CLASS(obj) \
OBJECT_GET_CLASS(S390FLICStateClass, (obj), TYPE_S390_FLIC_COMMON)
typedef struct S390FLICStateClass {
DeviceClass parent_class;
int (*register_io_adapter)(S390FLICState *fs, uint32_t id, uint8_t isc,
bool swap, bool maskable);
int (*io_adapter_map)(S390FLICState *fs, uint32_t id, uint64_t map_addr,
bool do_map);
int (*add_adapter_routes)(S390FLICState *fs, AdapterRoutes *routes);
void (*release_adapter_routes)(S390FLICState *fs, AdapterRoutes *routes);
int (*clear_io_irq)(S390FLICState *fs, uint16_t subchannel_id,
uint16_t subchannel_nr);
} S390FLICStateClass;
#define TYPE_KVM_S390_FLIC "s390-flic-kvm"
#define KVM_S390_FLIC(obj) \
OBJECT_CHECK(KVMS390FLICState, (obj), TYPE_KVM_S390_FLIC)
#define TYPE_QEMU_S390_FLIC "s390-flic-qemu"
#define QEMU_S390_FLIC(obj) \
OBJECT_CHECK(QEMUS390FLICState, (obj), TYPE_QEMU_S390_FLIC)
typedef struct QEMUS390FLICState {
S390FLICState parent_obj;
} QEMUS390FLICState;
void s390_flic_init(void);
S390FLICState *s390_get_flic(void);
#ifdef CONFIG_KVM
DeviceState *s390_flic_kvm_create(void);
#else
static inline DeviceState *s390_flic_kvm_create(void)
{
return NULL;
}
#endif
#endif /* HW_S390_FLIC_H */
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