From 8871d8563a405a29365281c24159a0f92aeb3511 Mon Sep 17 00:00:00 2001
From: thorpej <thorpej@NetBSD.org>
Date: Wed, 31 May 2000 05:06:43 +0000
Subject: [PATCH] Add a comment on single-processor systems about p_cpu being
 initialized by fork1().

---
 sys/arch/amiga/amiga/locore.s       | 3 ++-
 sys/arch/amigappc/amigappc/locore.S | 4 +++-
 sys/arch/arm26/arm26/Locore.c       | 5 +++--
 sys/arch/arm32/arm32/cpuswitch.S    | 4 +++-
 sys/arch/atari/atari/locore.s       | 3 ++-
 sys/arch/evbsh3/evbsh3/locore.s     | 4 +++-
 sys/arch/hp300/hp300/locore.s       | 3 ++-
 sys/arch/luna68k/luna68k/locore.s   | 3 ++-
 sys/arch/mac68k/mac68k/locore.s     | 3 ++-
 sys/arch/mmeye/mmeye/locore.s       | 4 +++-
 sys/arch/mvme68k/mvme68k/locore.s   | 3 ++-
 sys/arch/news68k/news68k/locore.s   | 3 ++-
 sys/arch/next68k/next68k/locore.s   | 3 ++-
 sys/arch/pc532/pc532/locore.s       | 4 +++-
 sys/arch/sun3/sun3/locore.s         | 3 ++-
 sys/arch/sun3/sun3x/locore.s        | 3 ++-
 sys/arch/x68k/x68k/locore.s         | 3 ++-
 17 files changed, 40 insertions(+), 18 deletions(-)

diff --git a/sys/arch/amiga/amiga/locore.s b/sys/arch/amiga/amiga/locore.s
index d8ca22d9a762..3aa5e720fb9b 100644
--- a/sys/arch/amiga/amiga/locore.s
+++ b/sys/arch/amiga/amiga/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.115 2000/05/26 21:19:25 thorpej Exp $	*/
+/*	$NetBSD: locore.s,v 1.116 2000/05/31 05:06:43 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -1224,6 +1224,7 @@ Lswok:
 	bset	d0,d1			| yes, reset bit
 	movl	d1,_sched_whichqs
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,a0@(P_STAT)		| p->p_stat = SONPROC
 	movl	a0,_curproc
 	clrl	_want_resched
diff --git a/sys/arch/amigappc/amigappc/locore.S b/sys/arch/amigappc/amigappc/locore.S
index 1b4b50b6b038..df04e3294202 100644
--- a/sys/arch/amigappc/amigappc/locore.S
+++ b/sys/arch/amigappc/amigappc/locore.S
@@ -1,4 +1,4 @@
-/*      $NetBSD: locore.S,v 1.3 2000/05/26 21:19:27 thorpej Exp $   */
+/*      $NetBSD: locore.S,v 1.4 2000/05/31 05:06:45 thorpej Exp $   */
 
 /*
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -378,6 +378,8 @@ ENTRY(cpu_switch)
 
 	stw	3,P_BACK(31)		/* probably superfluous */
 
+	/* p->p_cpu initialized in fork1() for single-processor */
+
 	li	3,SONPROC		/* p->p_stat = SONPROC */
 	stb	3,P_STAT(31)
 
diff --git a/sys/arch/arm26/arm26/Locore.c b/sys/arch/arm26/arm26/Locore.c
index eaed77fe2e2d..c5e0713d7535 100644
--- a/sys/arch/arm26/arm26/Locore.c
+++ b/sys/arch/arm26/arm26/Locore.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: Locore.c,v 1.3 2000/05/26 21:19:29 thorpej Exp $	*/
+/*	$NetBSD: Locore.c,v 1.4 2000/05/31 05:06:46 thorpej Exp $	*/
 
 /*
  * Copyright (c) 2000 Ben Harris.
@@ -39,7 +39,7 @@
 
 #include <sys/param.h>
 
-__RCSID("$NetBSD: Locore.c,v 1.3 2000/05/26 21:19:29 thorpej Exp $");
+__RCSID("$NetBSD: Locore.c,v 1.4 2000/05/31 05:06:46 thorpej Exp $");
 
 #include <sys/proc.h>
 #include <sys/sched.h>
@@ -136,6 +136,7 @@ cpu_switch(struct proc *p1)
 	p2 = q->ph_link;
 	remrunqueue(p2);
 	want_resched = 0;
+	/* p->p_cpu initialized in fork1() for single-processor */
 	p2->p_stat = SONPROC;
 	curproc = p2;
 #if 0
diff --git a/sys/arch/arm32/arm32/cpuswitch.S b/sys/arch/arm32/arm32/cpuswitch.S
index e1f935e08ad0..9bc07a623fb9 100644
--- a/sys/arch/arm32/arm32/cpuswitch.S
+++ b/sys/arch/arm32/arm32/cpuswitch.S
@@ -1,4 +1,4 @@
-/*	$NetBSD: cpuswitch.S,v 1.33 2000/05/26 21:19:31 thorpej Exp $	*/
+/*	$NetBSD: cpuswitch.S,v 1.34 2000/05/31 05:06:47 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1994-1998 Mark Brinicombe.
@@ -429,6 +429,8 @@ findqueue:
 	mov	r0, #0x00000000
 	str	r0, [r6, #(P_BACK)]
 
+	/* p->p_cpu initialized in fork1() for single-processor */
+
 	/* Process is now on a processor. */
 	mov	r0, #SONPROC			/* p->p_stat = SONPROC */
 	strb	r0, [r6, #(P_STAT)]
diff --git a/sys/arch/atari/atari/locore.s b/sys/arch/atari/atari/locore.s
index 3a8c1ddfc9ac..25baee3ab039 100644
--- a/sys/arch/atari/atari/locore.s
+++ b/sys/arch/atari/atari/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.67 2000/05/26 21:19:33 thorpej Exp $	*/
+/*	$NetBSD: locore.s,v 1.68 2000/05/31 05:06:47 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -1172,6 +1172,7 @@ Lswok:
 	bset	d0,d1			| yes, reset bit
 	movl	d1,_sched_whichqs
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,a0@(P_STAT)	| p->p_stat = SONPROC
 	movl	a0,_curproc
 	clrl	_want_resched
diff --git a/sys/arch/evbsh3/evbsh3/locore.s b/sys/arch/evbsh3/evbsh3/locore.s
index 34385ceefd2b..ef50c42f29d1 100644
--- a/sys/arch/evbsh3/evbsh3/locore.s
+++ b/sys/arch/evbsh3/evbsh3/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.15 2000/05/31 01:46:15 nisimura Exp $	*/
+/*	$NetBSD: locore.s,v 1.16 2000/05/31 05:06:48 thorpej Exp $	*/
 
 /*-
  * Copyright (c) 1993, 1994, 1995, 1997
@@ -886,6 +886,8 @@ XL_switch_error:
 	xor	r0, r0
 	mov.l	r0, @r1		/* r8->p_back = 0 */
 
+	/* p->p_cpu initialized in fork1() for single-processor */
+
 	/* Process now running on a processor. */
 	mov	#P_STAT, r0
 	mov	#SONPROC, r1
diff --git a/sys/arch/hp300/hp300/locore.s b/sys/arch/hp300/hp300/locore.s
index 4431508406cb..f61243704153 100644
--- a/sys/arch/hp300/hp300/locore.s
+++ b/sys/arch/hp300/hp300/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.108 2000/05/26 21:19:40 thorpej Exp $	*/
+/*	$NetBSD: locore.s,v 1.109 2000/05/31 05:06:49 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1994, 1995 Gordon W. Ross
@@ -1280,6 +1280,7 @@ Lsw1:
 	bclr	%d0,%d1			| no, clear bit
 	movl	%d1,_C_LABEL(sched_whichqs)
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,%a0@(P_STAT)	| p->p_stat = SONPROC
 	movl	%a0,_C_LABEL(curproc)
 	clrl	_C_LABEL(want_resched)
diff --git a/sys/arch/luna68k/luna68k/locore.s b/sys/arch/luna68k/luna68k/locore.s
index 74b3408dc8bd..723a47f59041 100644
--- a/sys/arch/luna68k/luna68k/locore.s
+++ b/sys/arch/luna68k/luna68k/locore.s
@@ -1,4 +1,4 @@
-/* $NetBSD: locore.s,v 1.6 2000/05/26 21:19:48 thorpej Exp $ */
+/* $NetBSD: locore.s,v 1.7 2000/05/31 05:06:50 thorpej Exp $ */
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -1026,6 +1026,7 @@ Lsw1:
 	bclr	d0,d1			| no, clear bit
 	movl	d1,_C_LABEL(sched_whichqs)
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,a0@(P_STAT)	| p->p_stat = SONPROC
 	movl	a0,_C_LABEL(curproc)
 	clrl	_C_LABEL(want_resched)
diff --git a/sys/arch/mac68k/mac68k/locore.s b/sys/arch/mac68k/mac68k/locore.s
index d70feee94ff8..c92408003cfb 100644
--- a/sys/arch/mac68k/mac68k/locore.s
+++ b/sys/arch/mac68k/mac68k/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.128 2000/05/26 21:19:51 thorpej Exp $	*/
+/*	$NetBSD: locore.s,v 1.129 2000/05/31 05:06:51 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -1067,6 +1067,7 @@ Lsw1:
 	bclr	d0,d1			| no, clear bit
 	movl	d1,_C_LABEL(sched_whichqs)
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,a0@(P_STAT)	| p->p_stat = SONPROC
 	movl	a0,_C_LABEL(curproc)
 	clrl	_C_LABEL(want_resched)
diff --git a/sys/arch/mmeye/mmeye/locore.s b/sys/arch/mmeye/mmeye/locore.s
index 47e74a9168c3..49458598cee4 100644
--- a/sys/arch/mmeye/mmeye/locore.s
+++ b/sys/arch/mmeye/mmeye/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.15 2000/05/31 01:46:16 nisimura Exp $	*/
+/*	$NetBSD: locore.s,v 1.16 2000/05/31 05:06:52 thorpej Exp $	*/
 
 /*-
  * Copyright (c) 1993, 1994, 1995, 1997
@@ -769,6 +769,8 @@ XL_switch_error:
 	xor	r0, r0
 	mov.l	r0, @(P_BACK, r8)	/* r8->p_back = 0 */
 
+	/* p->p_cpu initialized in fork1() for single-processor */
+
 	/* Process now running on a processor. */
 	mov	#P_STAT, r0
 	mov	#SONPROC, r1
diff --git a/sys/arch/mvme68k/mvme68k/locore.s b/sys/arch/mvme68k/mvme68k/locore.s
index ee1b969a2ecf..7734a89f9a48 100644
--- a/sys/arch/mvme68k/mvme68k/locore.s
+++ b/sys/arch/mvme68k/mvme68k/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.60 2000/05/26 21:19:58 thorpej Exp $	*/
+/*	$NetBSD: locore.s,v 1.61 2000/05/31 05:06:53 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -1273,6 +1273,7 @@ Lsw1:
 	bclr    d0,d1                   | no, clear bit
 	movl    d1,_C_LABEL(sched_whichqs)
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,a0@(P_STAT)	| p->p_stat = SONPROC
 	movl	a0,_C_LABEL(curproc)
 	clrl	_C_LABEL(want_resched)
diff --git a/sys/arch/news68k/news68k/locore.s b/sys/arch/news68k/news68k/locore.s
index 8e5ce7ae7e56..97ddd25e16e9 100644
--- a/sys/arch/news68k/news68k/locore.s
+++ b/sys/arch/news68k/news68k/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.7 2000/05/26 21:20:01 thorpej Exp $	*/
+/*	$NetBSD: locore.s,v 1.8 2000/05/31 05:06:53 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -1036,6 +1036,7 @@ Lsw1:
 	bclr    %d0,%d1			| no, clear bit
 	movl    %d1,_C_LABEL(sched_whichqs)
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,%a0@(P_STAT)	| p->p_stat = SONPROC
 	movl	%a0,_C_LABEL(curproc)
 	clrl	_C_LABEL(want_resched)
diff --git a/sys/arch/next68k/next68k/locore.s b/sys/arch/next68k/next68k/locore.s
index 7d2184502a7f..d3e5812a8675 100644
--- a/sys/arch/next68k/next68k/locore.s
+++ b/sys/arch/next68k/next68k/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.24 2000/05/26 21:20:03 thorpej Exp $	*/
+/*	$NetBSD: locore.s,v 1.25 2000/05/31 05:06:54 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1998 Darrin B. Jewell
@@ -1191,6 +1191,7 @@ Lsw1:
 	bclr	%d0,%d1			| no, clear bit
 	movl	%d1,_C_LABEL(sched_whichqs)
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,%a0@(P_STAT)	| p->p_stat = SONPROC
 	movl	%a0,_C_LABEL(curproc)
 	clrl	_C_LABEL(want_resched)
diff --git a/sys/arch/pc532/pc532/locore.s b/sys/arch/pc532/pc532/locore.s
index fc0170bb9cf8..006f1ef25c39 100644
--- a/sys/arch/pc532/pc532/locore.s
+++ b/sys/arch/pc532/pc532/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.61 2000/05/31 01:46:16 nisimura Exp $	*/
+/*	$NetBSD: locore.s,v 1.62 2000/05/31 05:06:55 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1993 Philip A. Nelson.
@@ -810,6 +810,8 @@ sw1:	/* Get the process and unlink it from the queue. */
 	/* Isolate process. XXX Is this necessary? */
 	movqd	0,P_BACK(r2)
 
+	/* p->p_cpu initialized in fork1() for single-processor */
+
 	/* Record new process. */
 	movb	SONPROC,P_STAT(r2)	/* p->p_stat = SONPROC */
 	movd	r2,_C_LABEL(curproc)(pc)
diff --git a/sys/arch/sun3/sun3/locore.s b/sys/arch/sun3/sun3/locore.s
index 7b7c783c1f28..bdc91d0d0251 100644
--- a/sys/arch/sun3/sun3/locore.s
+++ b/sys/arch/sun3/sun3/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.73 2000/05/31 03:16:52 nathanw Exp $	*/
+/*	$NetBSD: locore.s,v 1.74 2000/05/31 05:06:56 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1994, 1995 Gordon W. Ross
@@ -718,6 +718,7 @@ Lswok:
 	bset	d0,d1			| yes, reset bit
 	movl	d1,_C_LABEL(sched_whichqs)
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,a0@(P_STAT)	| p->p_stat = SONPROC
 	movl	a0,_C_LABEL(curproc)
 	clrl	_C_LABEL(want_resched)
diff --git a/sys/arch/sun3/sun3x/locore.s b/sys/arch/sun3/sun3x/locore.s
index 67916b308173..a8991d310bb1 100644
--- a/sys/arch/sun3/sun3x/locore.s
+++ b/sys/arch/sun3/sun3x/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.40 2000/05/31 03:16:53 nathanw Exp $	*/
+/*	$NetBSD: locore.s,v 1.41 2000/05/31 05:06:57 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -737,6 +737,7 @@ Lswok:
 	bset	d0,d1			| yes, reset bit
 	movl	d1,_C_LABEL(sched_whichqs)
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,a0@(P_STAT)	| p->p_stat = SONPROC
 	movl	a0,_C_LABEL(curproc)
 	clrl	_C_LABEL(want_resched)
diff --git a/sys/arch/x68k/x68k/locore.s b/sys/arch/x68k/x68k/locore.s
index fa0ce8091078..8d7b571b664e 100644
--- a/sys/arch/x68k/x68k/locore.s
+++ b/sys/arch/x68k/x68k/locore.s
@@ -1,4 +1,4 @@
-/*	$NetBSD: locore.s,v 1.57 2000/05/26 21:20:28 thorpej Exp $	*/
+/*	$NetBSD: locore.s,v 1.58 2000/05/31 05:06:58 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -1139,6 +1139,7 @@ Lsw1:
 	bclr	d0,d1			| no, clear bit
 	movl	d1,_C_LABEL(sched_whichqs)
 Lsw2:
+	/* p->p_cpu initialized in fork1() for single-processor */
 	movb	#SONPROC,a0@(P_STAT)	| p->p_stat = SONPROC
 	movl	a0,_C_LABEL(curproc)
 	clrl	_C_LABEL(want_resched)