CVS commit: [netbsd-6-0] src/sys/arch/mips/mips

["Soren Jacobsen" <snj%netbsd.org@localhost>]

Module Name:    src
Committed By:   snj
Date:           Wed Nov  8 21:28:18 UTC 2017

Modified Files:
        src/sys/arch/mips/mips [netbsd-6-0]: pmap.c

Log Message:
Pull up following revision(s) (requested by skrll in ticket #1390):
        sys/arch/mips/mips/pmap.c: 1.221-1.223
Fix a bug introduced by me in 1.214 where unmanaged mappings would be
affected by calls to pmap_page_protect which is wrong.  Now PV_KENTER
mappings are left intact.
Thanks to chuq for spotting my mistake and reviewing this diff.
Thanks to everyone who tested it as well.
Fix PR/51288 reproducable panic on evbmips64-eb (erlite)
pmap_page_remove from the previous change neglected to terminate the pv
list correctly when it started with an initial unmanaged mapping and
subsequent managed mappings.  Fix this.
Fix MIPS3_NO_PV_UNCACHED alias handling by looping through the pv_list
looking for bad aliases and removing the bad entries.  That is, revert
to the code before the matt-mips64 merge.
Additionally, fix the pmap_update call to not use the (recently
  removed/freed) pv for the pmap_t.
Fixes the following two PRs
PR/49903: Panic during installation on WorkPad Z50 (hpcmips) whilst uncompressing base.tgz
PR/51226: Install bug for hpcmips NetBSD V7 using FTP Full installation


To generate a diff of this commit:
cvs rdiff -u -r1.207.2.1.4.2 -r1.207.2.1.4.3 src/sys/arch/mips/mips/pmap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.