[src/trunk]: src/sys/uvm/pmap fix the DIAGNOSTIC function pmap_tlb_asid_count...

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

details:   https://anonhg.NetBSD.org/src/rev/7d720102695d
branches:  trunk
changeset: 830101:7d720102695d
user:      jdolecek <jdolecek%NetBSD.org@localhost>
date:      Sun Feb 25 21:43:03 2018 +0000

description:
fix the DIAGNOSTIC function pmap_tlb_asid_count() to not expect
that TLBINFO_ASID_INUSE_P() returns just 0 or 1; the underlying
__BITMAP_ISSET() actually returns the matching bit nowadays, which
caused miscounting

fixes PR kern/53054 by Sevan Janiyan

diffstat:

 sys/uvm/pmap/pmap_tlb.c |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (28 lines):

diff -r fd4ded767198 -r 7d720102695d sys/uvm/pmap/pmap_tlb.c
--- a/sys/uvm/pmap/pmap_tlb.c   Sun Feb 25 21:06:40 2018 +0000
+++ b/sys/uvm/pmap/pmap_tlb.c   Sun Feb 25 21:43:03 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap_tlb.c,v 1.27 2018/02/25 16:44:31 jdolecek Exp $   */
+/*     $NetBSD: pmap_tlb.c,v 1.28 2018/02/25 21:43:03 jdolecek Exp $   */
 
 /*-
  * Copyright (c) 2010 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
 
 #include <sys/cdefs.h>
 
-__KERNEL_RCSID(0, "$NetBSD: pmap_tlb.c,v 1.27 2018/02/25 16:44:31 jdolecek Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap_tlb.c,v 1.28 2018/02/25 21:43:03 jdolecek Exp $");
 
 /*
  * Manages address spaces in a TLB.
@@ -409,7 +409,8 @@
 {
        size_t count = 0;
        for (tlb_asid_t asid = 1; asid <= ti->ti_asid_max; asid++) {
-               count += TLBINFO_ASID_INUSE_P(ti, asid);
+               if (TLBINFO_ASID_INUSE_P(ti, asid))
+                       count++;
        }
        return count;
 }