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ppc/xics: introduce a XICSFabric QOM interface to handle ICSs

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This interface provides two simple handlers. One is to get an ICS
(Interrupt Source Controller) object from an irq number and a second
to resend the irqs when needed.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2017-02-27 15:29:14 +01:00 committed by David Gibson
parent b9038e7806
commit 51b180051e
2 changed files with 25 additions and 0 deletions
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7
hw/intc/xics.c
View File

@ -745,6 +745,12 @@ static const TypeInfo ics_base_info = {
.class_size = sizeof(ICSStateClass), .class_size = sizeof(ICSStateClass),
}; };
static const TypeInfo xics_fabric_info = {
.name = TYPE_XICS_FABRIC,
.parent = TYPE_INTERFACE,
.class_size = sizeof(XICSFabricClass),
};
/* /*
* Exported functions * Exported functions
*/ */
@ -785,6 +791,7 @@ static void xics_register_types(void)
type_register_static(&ics_simple_info); type_register_static(&ics_simple_info);
type_register_static(&ics_base_info); type_register_static(&ics_base_info);
type_register_static(&icp_info); type_register_static(&icp_info);
type_register_static(&xics_fabric_info);
} }
type_init(xics_register_types) type_init(xics_register_types)

18
include/hw/ppc/xics.h
View File

@ -178,6 +178,24 @@ struct ICSIRQState {
uint8_t flags; uint8_t flags;
}; };
typedef struct XICSFabric {
Object parent;
} XICSFabric;
#define TYPE_XICS_FABRIC "xics-fabric"
#define XICS_FABRIC(obj) \
OBJECT_CHECK(XICSFabric, (obj), TYPE_XICS_FABRIC)
#define XICS_FABRIC_CLASS(klass) \
OBJECT_CLASS_CHECK(XICSFabricClass, (klass), TYPE_XICS_FABRIC)
#define XICS_FABRIC_GET_CLASS(obj) \
OBJECT_GET_CLASS(XICSFabricClass, (obj), TYPE_XICS_FABRIC)
typedef struct XICSFabricClass {
InterfaceClass parent;
ICSState *(*ics_get)(XICSFabric *xi, int irq);
void (*ics_resend)(XICSFabric *xi);
} XICSFabricClass;
#define XICS_IRQS_SPAPR 1024 #define XICS_IRQS_SPAPR 1024
qemu_irq xics_get_qirq(XICSState *icp, int irq); qemu_irq xics_get_qirq(XICSState *icp, int irq);