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[v4,07/26] ppc/xics: introduce a XICSFabric QOM interface to handle ICSs

Message ID 1488205773-30436-8-git-send-email-clg@kaod.org
State New
Headers show

Commit Message

Cédric Le Goater Feb. 27, 2017, 2:29 p.m. UTC 
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>
---
 Changes since v2:

 - renamed QOM Interface to XICSFabric

 hw/intc/xics.c        |  7 +++++++
 include/hw/ppc/xics.h | 18 ++++++++++++++++++
 2 files changed, 25 insertions(+)
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Patch

diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index c7c9bd600790..433869a696c4 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -745,6 +745,12 @@  static const TypeInfo ics_base_info = {
     .class_size = sizeof(ICSStateClass),
 };
 
+static const TypeInfo xics_fabric_info = {
+    .name = TYPE_XICS_FABRIC,
+    .parent = TYPE_INTERFACE,
+    .class_size = sizeof(XICSFabricClass),
+};
+
 /*
  * Exported functions
  */
@@ -785,6 +791,7 @@  static void xics_register_types(void)
     type_register_static(&ics_simple_info);
     type_register_static(&ics_base_info);
     type_register_static(&icp_info);
+    type_register_static(&xics_fabric_info);
 }
 
 type_init(xics_register_types)
diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
index 37d4d9ce3f81..1c43305a0456 100644
--- a/include/hw/ppc/xics.h
+++ b/include/hw/ppc/xics.h
@@ -178,6 +178,24 @@  struct ICSIRQState {
     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
 
 qemu_irq xics_get_qirq(XICSState *icp, int irq);