Bring in NetBSD code used in the PowerPC port.

Reviewed by:	obrien, dfr
Obtained from:	NetBSD

1 files changed, 98 insertions, 0 deletions

diff --git a/sys/powerpc/include/cpu.h b/sys/powerpc/include/cpu.h
new file mode 100644
index 0000000..3050b59
--- /dev/null
+++ b/sys/powerpc/include/cpu.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 1995-1997 Wolfgang Solfrank.
+ * Copyright (C) 1995-1997 TooLs GmbH.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by TooLs GmbH.
+ * 4. The name of TooLs GmbH may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *	$NetBSD: cpu.h,v 1.11 2000/05/26 21:19:53 thorpej Exp $
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_CPU_H_
+#define	_MACHINE_CPU_H_
+
+#include <machine/frame.h>
+#include <machine/pcb.h>
+#include <machine/psl.h>
+
+#define	CLKF_USERMODE(frame)	(((frame)->srr1 & PSL_PR) != 0)
+#define	CLKF_BASEPRI(frame)	((frame)->pri == 0)
+#define	CLKF_PC(frame)		((frame)->srr0)
+#define	CLKF_INTR(frame)	((frame)->depth > 0)
+
+#define	cpu_swapout(p)
+#define	cpu_number()		0
+
+extern void delay __P((unsigned));
+#define	DELAY(n)		delay(n)
+
+extern int want_resched;
+extern int astpending;
+
+#define	need_proftick(p)	((p)->p_flag |= PS_OWEUPC, astpending = 1)
+
+extern char bootpath[];
+
+#if defined(_KERNEL) || defined(_STANDALONE)
+#define	CACHELINESIZE	32
+#endif
+
+extern void __syncicache __P((void *, int));
+
+/*
+ * CTL_MACHDEP definitions.
+ */
+#define	CPU_CACHELINE	1
+#define	CPU_MAXID	2
+#define CPU_CONSDEV	1
+
+#define	CTL_MACHDEP_NAMES { \
+	{ 0, 0 }, \
+	{ "cachelinesize", CTLTYPE_INT }, \
+}
+
+static __inline u_int64_t
+get_cyclecount(void)
+{
+	u_int32_t upper, lower;
+	u_int64_t time;
+
+	__asm __volatile(
+		"mftb %0\n"
+		"mftbu %1"
+		: "=r" (lower), "=r" (upper));
+
+	time = (u_int64_t)upper;
+	time = (time << 32) + lower;
+	return (time);
+}
+
+#define	cpu_getstack(p)		((p)->p_md.md_regs[1])
+
+void	savectx __P((struct pcb *));
+
+#endif	/* _MACHINE_CPU_H_ */