intrcompat: move pic_base_class declaration to sys/interrupt.h

As all FreeBSD architectures provide a PIC base class, move the
declaration to the common header.

Author: ehem

sys/powerpc/include/interrupt.h

@@ -32,15 +32,12 @@
 
 typedef struct powerpc_intr interrupt_t;
 
+#include <sys/interrupt.h>
+
 /* FreeBSD standard interrupt controller interface */
 
-#include <sys/_cpuset.h>
-#include <sys/interrupt.h>
-#include <sys/kobj.h>
 #include <sys/types.h>
 
-DECLARE_CLASS(pic_base_class);
-
 #define	INTR_VECTORS	256
 
 #define	MAX_PICS		32
@@ -53,9 +50,6 @@ DECLARE_CLASS(pic_base_class);
 
 extern device_t root_pic;
 
-struct trapframe;
-struct intr_handler;
-
 /* Main interrupt structure, exported to allow fast read access for PICs */
 struct powerpc_intr {
 	struct intr_event event;

sys/sys/interrupt.h

@@ -30,14 +30,23 @@
 #define _SYS_INTERRUPT_H_
 #ifdef	_KERNEL
 
+#include <sys/_cpuset.h>
 #include <sys/_interrupt.h>
 #include <sys/_lock.h>
 #include <sys/ck.h>
+#include <sys/kobj.h>
 #include <sys/mutex.h>
 #include <sys/param.h>
 #include <sys/queue.h>
 #include <sys/types.h>
 
+/*
+ * Common base class for PICs.  All FreeBSD architectures provide this,
+ * so present in this header.
+ */
+
+DECLARE_CLASS(pic_base_class);
+
 struct intr_event;
 struct intr_thread;
 struct trapframe;

sys/sys/intr.h

@@ -41,15 +41,12 @@
 
 typedef struct intr_irqsrc interrupt_t;
 
+#include <sys/interrupt.h>
+
 /* FreeBSD standard interrupt controller interface */
 
-#include <sys/_cpuset.h>
-#include <sys/interrupt.h>
-#include <sys/kobj.h>
 #include <sys/types.h>
 
-DECLARE_CLASS(pic_base_class);
-
 #define	INTR_IRQ_INVALID	0xFFFFFFFF
 
 #ifndef LOCORE

sys/x86/include/interrupt.h

@@ -34,15 +34,12 @@
 
 typedef struct intsrc interrupt_t;
 
+#include <sys/interrupt.h>
+
 /* FreeBSD standard interrupt controller interface */
 
-#include <sys/_cpuset.h>
-#include <sys/interrupt.h>
-#include <sys/kobj.h>
 #include <sys/types.h>
 
-DECLARE_CLASS(pic_base_class);
-
 typedef struct { device_t next, prev; } pic_base_softc_t;
 
 /*