CVS commit: src/sys/arch

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

Module Name:    src
Committed By:   thorpej
Date:           Sun May 10 19:33:33 UTC 2026

Modified Files:
        src/sys/arch/amiga/include: param.h
        src/sys/arch/atari/include: param.h
        src/sys/arch/cesfic/include: param.h
        src/sys/arch/hp300/include: param.h
        src/sys/arch/luna68k/include: param.h
        src/sys/arch/m68k/include: param.h
        src/sys/arch/m68k/m68k: vm_machdep.c
        src/sys/arch/mac68k/include: param.h
        src/sys/arch/mvme68k/include: param.h
        src/sys/arch/news68k/include: param.h
        src/sys/arch/next68k/include: param.h
        src/sys/arch/sun2/include: param.h
        src/sys/arch/sun3/include: param.h
        src/sys/arch/virt68k/include: param.h
        src/sys/arch/x68k/include: param.h

Log Message:
Harmonize USPACE / UPAGES across m68k platforms.

There seems to be a complicated history rooted in the original Utah code
using UPAGES of 2 w/ NBPG of 4096 for an 8KB total u-area.  The Amiga
port then appeared using NBPG of 8192, but UPAGES was not adjusted to
conpensate, resulting in a 16KB u-area for Amiga.  From there, chaos
spread which resulted in us homehow tolerating a situation where the
Sun2 is also using a 16KB u-area despite only have 2048-byte pages.

End this madness by centrally defining USPACE as 8192 and deriving
UPAGES from USPACE.  8KB is totally enough for these platforms.


To generate a diff of this commit:
cvs rdiff -u -r1.52 -r1.53 src/sys/arch/amiga/include/param.h
cvs rdiff -u -r1.37 -r1.38 src/sys/arch/atari/include/param.h
cvs rdiff -u -r1.15 -r1.16 src/sys/arch/cesfic/include/param.h
cvs rdiff -u -r1.55 -r1.56 src/sys/arch/hp300/include/param.h
cvs rdiff -u -r1.17 -r1.18 src/sys/arch/luna68k/include/param.h
cvs rdiff -u -r1.28 -r1.29 src/sys/arch/m68k/include/param.h
cvs rdiff -u -r1.46 -r1.47 src/sys/arch/m68k/m68k/vm_machdep.c
cvs rdiff -u -r1.48 -r1.49 src/sys/arch/mac68k/include/param.h
cvs rdiff -u -r1.35 -r1.36 src/sys/arch/mvme68k/include/param.h
cvs rdiff -u -r1.19 -r1.20 src/sys/arch/news68k/include/param.h
cvs rdiff -u -r1.15 -r1.16 src/sys/arch/next68k/include/param.h
cvs rdiff -u -r1.18 -r1.19 src/sys/arch/sun2/include/param.h
cvs rdiff -u -r1.64 -r1.65 src/sys/arch/sun3/include/param.h
cvs rdiff -u -r1.5 -r1.6 src/sys/arch/virt68k/include/param.h
cvs rdiff -u -r1.33 -r1.34 src/sys/arch/x68k/include/param.h

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