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in pmap_bootstrap4_4c(), remove any bogus mappings the PROM

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left around in the mmu.
This commit is contained in:
chs 1999-03-16 03:45:36 +00:00
parent 8b2054fafc
commit 8e61ed9705
1 changed files with 27 additions and 2 deletions
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27
sys/arch/sparc/sparc/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.138 1999/03/12 22:42:30 perry Exp $ */
/* $NetBSD: pmap.c,v 1.139 1999/03/16 03:45:36 chs Exp $ */
/*
* Copyright (c) 1996
@ -2844,6 +2844,7 @@ pmap_bootstrap4_4c(nctx, nregion, nsegment)
int rcookie, scookie;
caddr_t p;
int lastpage;
vaddr_t va;
extern char end[];
#ifdef DDB
extern char *esym;
@ -3125,8 +3126,32 @@ pmap_bootstrap4_4c(nctx, nregion, nsegment)
*/
for (i = rp->rg_nsegmap; i < NSEGRG; i++, p += NBPSG)
setsegmap(p, seginval);
/*
* Unmap any kernel regions that we aren't using.
*/
for (i = 0; i < nctx; i++) {
setcontext4(i);
for (va = (vaddr_t)p;
va < (OPENPROM_STARTVADDR & ~(NBPRG - 1));
va += NBPRG)
setregmap(va, reginval);
}
} else
#endif
{
/*
* Unmap any kernel segments that we aren't using.
*/
for (i = 0; i < nctx; i++) {
setcontext4(i);
for (va = (vaddr_t)p;
va < (OPENPROM_STARTVADDR & ~(NBPSG - 1));
va += NBPSG)
setsegmap(va, seginval);
}
}
break;
}