CVS commit: src/sys/arch/m68k/m68k

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Tue May  5 03:41:00 UTC 2026

Modified Files:
        src/sys/arch/m68k/m68k: pmap_68k.c

Log Message:
In pmap_bootstrap1(), check to see if FIXEDVA entries in machine_bootmap[]
are covered by any existing page table range, and if not, allocate additional
page table ranges to cover them.

This does not impact the one current user of FIXEDVA -- hp300 -- which
uses it to map the last page of RAM VA==PA.  In the hp300 case, this
was already covered by the PTs that map the alternate SYSMAP_VA that
the hp300 uses (precisely because it needs the last VA==PA mapping).

This will eventually be used to map the I/O region VA==PA for mac68k.
Normally, we might otherwies use a TT register for that, but mac68k
runs on 68020s, so we cannot.


To generate a diff of this commit:
cvs rdiff -u -r1.57 -r1.58 src/sys/arch/m68k/m68k/pmap_68k.c

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