From 9e69444bbd891167bc88f141430256fb5a27d0c4 Mon Sep 17 00:00:00 2001
From: thorpej <thorpej@NetBSD.org>
Date: Thu, 12 Jun 1997 23:57:26 +0000
Subject: [PATCH] Nuke __VM_PMAP_HACK.

---
 sys/arch/i386/i386/machdep.c    | 18 +++++++++++-------
 sys/arch/i386/i386/pmap.c       |  6 +++---
 sys/arch/i386/i386/vm_machdep.c |  4 ++--
 sys/arch/i386/include/pmap.h    |  4 +---
 sys/arch/i386/isa/isa_machdep.c | 11 ++++++++---
 5 files changed, 25 insertions(+), 18 deletions(-)

diff --git a/sys/arch/i386/i386/machdep.c b/sys/arch/i386/i386/machdep.c
index 7713eaa80561..7619f5f3dfef 100644
--- a/sys/arch/i386/i386/machdep.c
+++ b/sys/arch/i386/i386/machdep.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: machdep.c,v 1.233 1997/06/12 15:46:32 mrg Exp $	*/
+/*	$NetBSD: machdep.c,v 1.234 1997/06/12 23:57:26 thorpej Exp $	*/
 
 /*-
  * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
@@ -2028,27 +2028,31 @@ _bus_dmamap_load(t, map, buf, buflen, p, flags)
 	bus_addr_t curaddr, lastaddr;
 	caddr_t vaddr = buf;
 	int first, seg;
-
-	if (buflen > map->_dm_size)
-		return (EINVAL);
+	pmap_t pmap;
 
 	/*
 	 * Make sure that on error condition we return "no valid mappings".
 	 */
 	map->dm_nsegs = 0;
 
+	if (buflen > map->_dm_size)
+		return (EINVAL);
+
 	/*
 	 * XXX Need to implement "don't dma across this boundry".
 	 */
 
+	if (p != NULL)
+		pmap = p->p_vmspace->vm_map.pmap;
+	else
+		pmap = pmap_kernel();
+
 	lastaddr = ~0;		/* XXX gcc */
 	for (first = 1, seg = 0; buflen > 0 && seg < map->_dm_segcnt; ) {
 		/*
 		 * Get the physical address for this segment.
 		 */
-		curaddr = (bus_addr_t)pmap_extract(p != NULL ?
-		    &p->p_vmspace->vm_pmap : pmap_kernel(),
-		    (vm_offset_t)vaddr);
+		curaddr = (bus_addr_t)pmap_extract(pmap, (vm_offset_t)vaddr);
 
 		/*
 		 * Compute the segment size, and adjust counts.
diff --git a/sys/arch/i386/i386/pmap.c b/sys/arch/i386/i386/pmap.c
index 67bd8982addf..6e70818afbe8 100644
--- a/sys/arch/i386/i386/pmap.c
+++ b/sys/arch/i386/i386/pmap.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: pmap.c,v 1.42 1997/06/06 23:14:22 thorpej Exp $	*/
+/*	$NetBSD: pmap.c,v 1.43 1997/06/12 23:57:28 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1993, 1994, 1995 Charles M. Hannum.  All rights reserved.
@@ -681,7 +681,7 @@ pmap_release(pmap)
 		printf("pmap_release(%p)\n", pmap);
 #endif
 
-#ifdef DIAGNOSTIC
+#ifdef notdef /* DIAGNOSTIC */
 	/* sometimes 1, sometimes 0; could rearrange pmap_destroy */
 	if (pmap->pm_count != 1)
 		panic("pmap_release count");
@@ -720,7 +720,7 @@ pmap_activate(pmap, pcb)
 	if (pmap /*&& pmap->pm_pdchanged */) {
 		pcb->pcb_cr3 =
 		    pmap_extract(pmap_kernel(), (vm_offset_t)pmap->pm_pdir);
-		if (pmap == &curproc->p_vmspace->vm_pmap)
+		if (pmap == curproc->p_vmspace->vm_map.pmap)
 			lcr3(pcb->pcb_cr3);
 		pmap->pm_pdchanged = FALSE;
 	}
diff --git a/sys/arch/i386/i386/vm_machdep.c b/sys/arch/i386/i386/vm_machdep.c
index bf7f4f56f621..c5a9e104d1b6 100644
--- a/sys/arch/i386/i386/vm_machdep.c
+++ b/sys/arch/i386/i386/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: vm_machdep.c,v 1.63 1996/12/10 05:28:15 tls Exp $	*/
+/*	$NetBSD: vm_machdep.c,v 1.64 1997/06/12 23:57:29 thorpej Exp $	*/
 
 /*-
  * Copyright (c) 1995 Charles M. Hannum.  All rights reserved.
@@ -106,7 +106,7 @@ cpu_fork(p1, p2)
 	/* Sync curpcb (which is presumably p1's PCB) and copy it to p2. */
 	savectx(curpcb);
 	*pcb = p1->p_addr->u_pcb;
-	pmap_activate(&p2->p_vmspace->vm_pmap, pcb);
+	pmap_activate(p2->p_vmspace->vm_map.pmap, pcb);
 
 	/*
 	 * Preset these so that gdt_compact() doesn't get confused if called
diff --git a/sys/arch/i386/include/pmap.h b/sys/arch/i386/include/pmap.h
index aa677381c430..5ca538cc0e00 100644
--- a/sys/arch/i386/include/pmap.h
+++ b/sys/arch/i386/include/pmap.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: pmap.h,v 1.25 1997/05/16 21:35:36 gwr Exp $	*/
+/*	$NetBSD: pmap.h,v 1.26 1997/06/12 23:57:30 thorpej Exp $	*/
 
 /* 
  * Copyright (c) 1995 Charles M. Hannum.  All rights reserved.
@@ -204,6 +204,4 @@ void pmap_activate __P((pmap_t, struct pcb *));
 
 #endif	/* _KERNEL */
 
-#define	__VM_PMAP_HACK
-
 #endif /* _I386_PMAP_H_ */
diff --git a/sys/arch/i386/isa/isa_machdep.c b/sys/arch/i386/isa/isa_machdep.c
index 008cf7e70764..0c17bdc580c2 100644
--- a/sys/arch/i386/isa/isa_machdep.c
+++ b/sys/arch/i386/isa/isa_machdep.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: isa_machdep.c,v 1.21 1997/06/06 23:28:41 thorpej Exp $	*/
+/*	$NetBSD: isa_machdep.c,v 1.22 1997/06/12 23:57:32 thorpej Exp $	*/
 
 #define ISA_DMA_STATS
 
@@ -900,6 +900,7 @@ _isa_dma_check_buffer(buf, buflen, segcnt, boundary, p)
 	vm_offset_t vaddr = (vm_offset_t)buf;
 	vm_offset_t pa, lastpa, endva;
 	u_long pagemask = ~(boundary - 1);
+	pmap_t pmap;
 	int nsegs;
 
 	endva = round_page(vaddr + buflen);
@@ -907,12 +908,16 @@ _isa_dma_check_buffer(buf, buflen, segcnt, boundary, p)
 	nsegs = 1;
 	lastpa = 0;
 
+	if (p != NULL)
+		pmap = p->p_vmspace->vm_map.pmap;
+	else
+		pmap = pmap_kernel();
+
 	for (; vaddr < endva; vaddr += NBPG) {
 		/*
 		 * Get physical address for this segment.
 		 */
-		pa = pmap_extract(p != NULL ? &p->p_vmspace->vm_pmap :
-		    pmap_kernel(), (vm_offset_t)vaddr);
+		pa = pmap_extract(pmap, (vm_offset_t)vaddr);
 		pa = trunc_page(pa);
 
 		/*