Commit of stuff that's been sitting in my tree for a while.

Highlights include:
- New low-level trap code from NetBSD.  The high level code still needs a lot
  of work.
- Fixes for some pmap handling in thread switching.
- The kernel will now get to attempting to jump into init in user mode.  There
  are some pmap/trap issues which prevent it from actually getting there though.

Obtained from:	NetBSD (parts)

1 files changed, 46 insertions, 0 deletions

diff --git a/sys/powerpc/include/frame.h b/sys/powerpc/include/frame.h
index 72dbd9f..63f07bf 100644
--- a/sys/powerpc/include/frame.h
+++ b/sys/powerpc/include/frame.h
@@ -90,4 +90,50 @@ struct callframe {
 	register_t	cf_arg1;
 };
 
+#define	IFRAMELEN	sizeof(struct intrframe)
+struct intrframe {
+	register_t r1;			/*  0 */
+	register_t _pad4;		/*  4 */
+	/*
+	 * The next 4 fields are "clockframe"
+	 */
+	register_t srr1;		/*  8 */
+	register_t srr0;		/* 12 */
+	int pri;			/* 16 */
+	int intr_depth;			/* 20 */
+	register_t vrsave;		/* 24 */
+	register_t ctr;			/* 28 */
+	register_t xer;			/* 32 */
+	register_t cr;			/* 36 */
+	register_t lr;			/* 40 */
+	register_t r12;			/* 44 */
+	register_t r11;			/* 48 */
+	register_t r10;			/* 52 */
+	register_t r9;			/* 56 */
+	register_t r8;			/* 60 */
+	register_t r7;			/* 64 */
+	register_t r6;			/* 68 */
+	register_t r5;			/* 72 */
+	register_t r4;			/* 76 */
+	register_t r3;			/* 80 */
+	register_t r0;			/* 84 */
+};
+
+#define	SPFRAMELEN	sizeof(struct spillframe)
+struct spillframe {
+	register_t	r1;		/*  0 */
+	register_t	_pad4;		/*  4 */
+	register_t	r12;		/*  8 */
+	register_t	r11;		/* 12 */
+	register_t	r10;		/* 16 */
+	register_t	r9;		/* 20 */
+	register_t	r8;		/* 24 */
+	register_t	r7;		/* 28 */
+	register_t	r6;		/* 32 */
+	register_t	r5;		/* 36 */
+	register_t	r4;		/* 40 */
+	register_t	r3;		/* 44 */
+	register_t	r0;		/* 48 */
+};
+
 #endif	/* _MACHINE_FRAME_H_ */