[src/trunk]: src/sys/arch/arm/arm32 Enhance the DIAGNOSTICs around pmap_grow_map

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1f8170718eb1
branches:  trunk
changeset: 745829:1f8170718eb1
user:      skrll <skrll%NetBSD.org@localhost>
date:      Fri Mar 13 16:25:19 2020 +0000

description:
Enhance the DIAGNOSTICs around pmap_grow_map

diffstat:

 sys/arch/arm/arm32/pmap.c |  14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

diffs (40 lines):

diff -r 97be6bba3ad0 -r 1f8170718eb1 sys/arch/arm/arm32/pmap.c
--- a/sys/arch/arm/arm32/pmap.c Fri Mar 13 16:16:29 2020 +0000
+++ b/sys/arch/arm/arm32/pmap.c Fri Mar 13 16:25:19 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.c,v 1.397 2020/03/13 16:16:29 skrll Exp $ */
+/*     $NetBSD: pmap.c,v 1.398 2020/03/13 16:25:19 skrll Exp $ */
 
 /*
  * Copyright 2003 Wasabi Systems, Inc.
@@ -198,7 +198,7 @@
 #endif
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.397 2020/03/13 16:16:29 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.398 2020/03/13 16:25:19 skrll Exp $");
 
 #include <sys/atomic.h>
 #include <sys/param.h>
@@ -5837,15 +5837,17 @@
 
        PMAPCOUNT(pt_mappings);
 
-       struct l2_bucket * const l2b __diagused =
-           pmap_get_l2_bucket(pmap_kernel(), va);
+       const pmap_t kpm __diagused = pmap_kernel();
+       struct l2_bucket * const l2b __diagused = pmap_get_l2_bucket(kpm, va);
        KASSERT(l2b != NULL);
 
        pt_entry_t * const ptep __diagused = &l2b->l2b_kva[l2pte_index(va)];
-       const pt_entry_t opte __diagused = *ptep;
-       KASSERT((opte & L2_S_CACHE_MASK) == pte_l2_s_cache_mode_pt);
+       const pt_entry_t pte __diagused = *ptep;
+       KASSERT(l2pte_valid_p(pte));
+       KASSERT((pte & L2_S_CACHE_MASK) == pte_l2_s_cache_mode_pt);
 
        memset((void *)va, 0, PAGE_SIZE);
+
        return 0;
 }