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Remove the for-loop that wants to map multiple msgbuf pages. 

Multiple msgbuf pages will not work without a redesign of
the kernel VM layout, so let's not pretend we can do it.
This commit is contained in:
gwr 1997-10-23 02:24:41 +00:00
parent 1060564fdc
commit 9420004b46
2 changed files with 8 additions and 12 deletions
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10
sys/arch/sun3/sun3x/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.28 1997/10/05 20:43:36 gwr Exp $ */
/* $NetBSD: pmap.c,v 1.29 1997/10/23 02:24:41 gwr Exp $ */
/*-
* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
@ -865,12 +865,10 @@ pmap_bootstrap(nextva)
* The first page of the kernel virtual address space is the msgbuf
* page. The page attributes (data, non-cached) are set here, while
* the address is assigned to this global pointer in cpu_startup().
* XXX - Make it non-cached?
* It is non-cached, mostly due to paranoia.
*/
for (i = 0; i < btoc(MSGBUFSIZE); i++) {
pmap_enter_kernel(va, pa|PMAP_NC, VM_PROT_ALL);
va += NBPG; pa += NBPG;
}
pmap_enter_kernel(va, pa|PMAP_NC, VM_PROT_ALL);
va += NBPG; pa += NBPG;
/* Next page is used as the temporary stack. */
pmap_enter_kernel(va, pa, VM_PROT_ALL);

10
sys/arch/sun3x/sun3x/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.28 1997/10/05 20:43:36 gwr Exp $ */
/* $NetBSD: pmap.c,v 1.29 1997/10/23 02:24:41 gwr Exp $ */
/*-
* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
@ -865,12 +865,10 @@ pmap_bootstrap(nextva)
* The first page of the kernel virtual address space is the msgbuf
* page. The page attributes (data, non-cached) are set here, while
* the address is assigned to this global pointer in cpu_startup().
* XXX - Make it non-cached?
* It is non-cached, mostly due to paranoia.
*/
for (i = 0; i < btoc(MSGBUFSIZE); i++) {
pmap_enter_kernel(va, pa|PMAP_NC, VM_PROT_ALL);
va += NBPG; pa += NBPG;
}
pmap_enter_kernel(va, pa|PMAP_NC, VM_PROT_ALL);
va += NBPG; pa += NBPG;
/* Next page is used as the temporary stack. */
pmap_enter_kernel(va, pa, VM_PROT_ALL);