From 21bce0b3873e59c1f9e8e097e28aa4b985e339c3 Mon Sep 17 00:00:00 2001
From: Miod Vallat <miod@cvs.openbsd.org>
Date: Sat, 8 Jun 2002 15:45:33 +0000
Subject: Factorize common parts (cache-related stuff). ok drahn@

---
 sys/arch/powerpc/include/cpu.h | 45 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

(limited to 'sys/arch/powerpc/include')

diff --git a/sys/arch/powerpc/include/cpu.h b/sys/arch/powerpc/include/cpu.h
index 5fddfb0fc62..826cb409e2e 100644
--- a/sys/arch/powerpc/include/cpu.h
+++ b/sys/arch/powerpc/include/cpu.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cpu.h,v 1.10 2002/06/07 21:33:43 nordin Exp $	*/
+/*	$OpenBSD: cpu.h,v 1.11 2002/06/08 15:45:32 miod Exp $	*/
 /*	$NetBSD: cpu.h,v 1.1 1996/09/30 16:34:21 ws Exp $	*/
 
 /*
@@ -57,4 +57,47 @@ extern volatile int astpending;
 
 extern char *bootpath;
 
+#ifndef	CACHELINESIZE
+#define	CACHELINESIZE	32			/* For now		XXX */
+#endif
+
+static __inline void
+syncicache(void *from, int len)
+{
+	int l;
+	char *p = from;
+
+	len = len + (((u_int32_t) from) & (CACHELINESIZE - 1));
+	l = len;
+	
+	do {
+		__asm__ __volatile__ ("dcbst 0,%0" :: "r"(p));
+		p += CACHELINESIZE;
+	} while ((l -= CACHELINESIZE) > 0);
+	__asm__ __volatile__ ("sync");
+	p = from;
+	l = len;
+	do {
+		__asm__ __volatile__ ("icbi 0,%0" :: "r"(p));
+		p += CACHELINESIZE;
+	} while ((l -= CACHELINESIZE) > 0);
+	__asm__ __volatile__ ("isync");
+}
+
+static __inline void
+invdcache(void *from, int len)
+{
+	int l;
+	char *p = from;
+	
+	len = len + (((u_int32_t) from) & (CACHELINESIZE - 1));
+	l = len;
+	
+	do {
+		__asm__ __volatile__ ("dcbi 0,%0" :: "r"(p));
+		p += CACHELINESIZE;
+	} while ((l -= CACHELINESIZE) > 0);
+	__asm__ __volatile__ ("sync");
+}
+
 #endif	/* _POWERPC_CPU_H_ */
-- 
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