From 2da6ac0289bfe72717e6f8942144fae913f4a87f Mon Sep 17 00:00:00 2001
From: downsj <downsj@openbsd.org>
Date: Mon, 10 Feb 1997 12:01:45 +0000
Subject: [PATCH] mac68k copypage/zeropage changes.

---
 sys/arch/mac68k/mac68k/locore.s | 34 +--------------------------------
 sys/arch/mac68k/mac68k/mem.c    | 12 ++++++------
 sys/arch/mac68k/mac68k/pmap.c   |  6 +++---
 3 files changed, 10 insertions(+), 42 deletions(-)

diff --git a/sys/arch/mac68k/mac68k/locore.s b/sys/arch/mac68k/mac68k/locore.s
index 94b2b1bf8ef..ac74bedde32 100644
--- a/sys/arch/mac68k/mac68k/locore.s
+++ b/sys/arch/mac68k/mac68k/locore.s
@@ -1,4 +1,4 @@
-/*	$OpenBSD: locore.s,v 1.16 1997/01/24 01:35:47 briggs Exp $	*/
+/*	$OpenBSD: locore.s,v 1.17 1997/02/10 12:01:45 downsj Exp $	*/
 /*	$NetBSD: locore.s,v 1.73 1997/01/09 07:28:12 scottr Exp $	*/
 
 /*
@@ -1114,38 +1114,6 @@ _esigcode:
 
 #include <m68k/asm.h>
 
-/*
- * copypage(fromaddr, toaddr)
- *
- * Optimized version of bcopy for a single page-aligned NBPG byte copy.
- */
-ENTRY(copypage)
-	movl	sp@(4),a0		| source address
-	movl	sp@(8),a1		| destination address
-	movl	#NBPG/32,d0		| number of 32 byte chunks
-#if defined(M68040)
-	cmpl	#MMU_68040,_mmutype	| 68040?
-	jne	Lmlloop			| no, use movl
-Lm16loop:
-	.long	0xf6209000		| move16 a0@+,a1@+
-	.long	0xf6209000		| move16 a0@+,a1@+
-	subql	#1,d0
-	jne	Lm16loop
-	rts
-#endif
-Lmlloop:
-	movl	a0@+,a1@+
-	movl	a0@+,a1@+
-	movl	a0@+,a1@+
-	movl	a0@+,a1@+
-	movl	a0@+,a1@+
-	movl	a0@+,a1@+
-	movl	a0@+,a1@+
-	movl	a0@+,a1@+
-	subql	#1,d0
-	jne	Lmlloop
-	rts
-
 /*
  * non-local gotos
  */
diff --git a/sys/arch/mac68k/mac68k/mem.c b/sys/arch/mac68k/mac68k/mem.c
index 34e02c57c10..f9dd4160bbd 100644
--- a/sys/arch/mac68k/mac68k/mem.c
+++ b/sys/arch/mac68k/mac68k/mem.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mem.c,v 1.3 1996/06/08 16:21:16 briggs Exp $	*/
+/*	$OpenBSD: mem.c,v 1.4 1997/02/10 12:01:47 downsj Exp $	*/
 /*	$NetBSD: mem.c,v 1.11 1996/05/05 06:18:41 briggs Exp $	*/
 
 /*
@@ -57,7 +57,7 @@
 
 #include <vm/vm.h>
 
-caddr_t zeropage;
+static caddr_t devzeropage;
 
 #define mmread	mmrw
 #define mmwrite	mmrw
@@ -155,13 +155,13 @@ mmrw(dev, uio, flags)
 				c = iov->iov_len;
 				break;
 			}
-			if (zeropage == NULL) {
-				zeropage = (caddr_t)
+			if (devzeropage == NULL) {
+				devzeropage = (caddr_t)
 				    malloc(CLBYTES, M_TEMP, M_WAITOK);
-				bzero(zeropage, CLBYTES);
+				bzero(devzeropage, CLBYTES);
 			}
 			c = min(iov->iov_len, CLBYTES);
-			error = uiomove(zeropage, c, uio);
+			error = uiomove(devzeropage, c, uio);
 			continue;
 
 		default:
diff --git a/sys/arch/mac68k/mac68k/pmap.c b/sys/arch/mac68k/mac68k/pmap.c
index 20001f22c53..d925b9225a8 100644
--- a/sys/arch/mac68k/mac68k/pmap.c
+++ b/sys/arch/mac68k/mac68k/pmap.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pmap.c,v 1.7 1997/01/24 01:35:51 briggs Exp $	*/
+/*	$OpenBSD: pmap.c,v 1.8 1997/02/10 12:01:49 downsj Exp $	*/
 /*	$NetBSD: pmap.c,v 1.28 1996/10/21 05:42:27 scottr Exp $	*/
 
 /* 
@@ -1460,7 +1460,7 @@ pmap_zero_page(phys)
 #endif
 	kva = (vm_offset_t) CADDR1;
 	pmap_enter(pmap_kernel(), kva, phys, VM_PROT_READ|VM_PROT_WRITE, TRUE);
-	bzero((caddr_t)kva, NBPG);
+	zeropage((caddr_t)kva);
 	pmap_remove_mapping(pmap_kernel(), kva, PT_ENTRY_NULL,
 			    PRM_TFLUSH|PRM_CFLUSH);
 }
@@ -1489,7 +1489,7 @@ void copypage __P((caddr_t, caddr_t));
 	pmap_enter(pmap_kernel(), dkva, dst, VM_PROT_READ|VM_PROT_WRITE, TRUE);
 	copypage((caddr_t)skva, (caddr_t)dkva);
 	/* CADDR1 and CADDR2 are virtually contiguous */
-	pmap_remove(pmap_kernel(), skva, skva+2*NBPG);
+	pmap_remove(pmap_kernel(), skva, skva + (2 * NBPG));
 }
 
 
-- 
2.20.1