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When comparing VA's, ignore the page offset bits. 

Invert and strengthen a test for pte equality.
This commit is contained in:
matt 2001-06-15 20:43:01 +00:00
parent 8f1c399fa9
commit 787e1b0b36
1 changed files with 3 additions and 4 deletions
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7
sys/arch/powerpc/mpc6xx/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.7 2001/06/15 18:26:07 matt Exp $ */
/* $NetBSD: pmap.c,v 1.8 2001/06/15 20:43:01 matt Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
@ -940,9 +940,8 @@ pmap_pvo_to_pte(const struct pvo_entry *pvo, int pteidx)
"pmap_pteg_table %p but invalid in pvo",
pvo, pt);
}
if (((pt->pte_lo ^ pvo->pvo_pte.pte_lo) >> PTE_RPGN_SHFT) == 0) {
if (((pt->pte_lo ^ pvo->pvo_pte.pte_lo) & ~(PTE_CHG|PTE_REF)) != 0) {
#ifdef DEBUG
pmap_pte_print(&pvo->pvo_pte);
pmap_pte_print(pt);
#endif
panic("pmap_pvo_to_pte: pvo %p: pvo pte does "
@ -956,7 +955,6 @@ pmap_pvo_to_pte(const struct pvo_entry *pvo, int pteidx)
#ifdef DIAGNOSTIC
if (pvo->pvo_pte.pte_hi & PTE_VALID)
#ifdef DEBUG
pmap_pte_print(&pvo->pvo_pte);
pmap_pte_print(pt);
#endif
panic("pmap_pvo_to_pte: pvo %p: has invalid pte in "
@ -972,6 +970,7 @@ pmap_pvo_find_va(pmap_t pm, vaddr_t va, int *pteidx_p)
int ptegidx;
sr_t sr;
va &= ~ADDR_POFF;
sr = va_to_sr(pm->pm_sr, va);
ptegidx = va_to_pteg(sr, va);