CVS commit: [netbsd-9] src

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Mon Feb 10 18:46:41 UTC 2020

Modified Files:
        src/distrib/sets/lists/comp [netbsd-9]: ad.m68k
        src/sys/arch/amiga/include [netbsd-9]: vmparam.h
        src/sys/arch/atari/include [netbsd-9]: vmparam.h
        src/sys/arch/cesfic/include [netbsd-9]: vmparam.h
        src/sys/arch/hp300/include [netbsd-9]: vmparam.h
        src/sys/arch/luna68k/include [netbsd-9]: vmparam.h
        src/sys/arch/m68k/include [netbsd-9]: Makefile
        src/sys/arch/mac68k/include [netbsd-9]: vmparam.h
        src/sys/arch/mvme68k/include [netbsd-9]: vmparam.h
        src/sys/arch/news68k/include [netbsd-9]: vmparam.h
        src/sys/arch/next68k/include [netbsd-9]: vmparam.h
        src/sys/arch/sun3/include [netbsd-9]: vmparam.h
        src/sys/arch/x68k/include [netbsd-9]: vmparam.h
Added Files:
        src/sys/arch/m68k/include [netbsd-9]: vmparam.h

Log Message:
Pull up following revision(s) (requested by tsutsui in ticket #682):

        sys/arch/next68k/include/vmparam.h: revision 1.27
        sys/arch/mac68k/include/vmparam.h: revision 1.46
        sys/arch/sun3/include/vmparam.h: revision 1.38
        sys/arch/m68k/include/vmparam.h: revision 1.1
        sys/arch/hp300/include/vmparam.h: revision 1.41
        sys/arch/m68k/include/Makefile: revision 1.32
        sys/arch/amiga/include/vmparam.h: revision 1.48
        distrib/sets/lists/comp/ad.m68k: revision 1.63
        sys/arch/x68k/include/vmparam.h: revision 1.40
        sys/arch/mvme68k/include/vmparam.h: revision 1.38
        sys/arch/luna68k/include/vmparam.h: revision 1.23
        sys/arch/news68k/include/vmparam.h: revision 1.23
        sys/arch/atari/include/vmparam.h: revision 1.34
        sys/arch/cesfic/include/vmparam.h: revision 1.19

Add MAX/MIN PAGE_SIZE and PAGE_SHIFT definitions of m68k for jemalloc(3).

Background:
- All m68k ports have fixed PAGE_SIZE value in their kernels,
  but each port uses different PAGE_SIZE value (4096 or 8192)
  due to historical reasons.
- Currently module(7) binaries are built per each port so
  all m68k kernel sources don't support run-time variable PAGE_SIZE.
- MI <uvm/uvm_param.h> assumes that the port supports a variable
  PAGE_SIZE on module(7) builds if both MAX_PAGE_SIZE and MIN_PAGE_SIZE
  are defined and they have different values.
- On the other hand, jemalloc(3) checks MAX_PAGE_SHIFT in
  src/external/bsd/jemalloc/include/jemalloc/internal/jemalloc_internal_defs.h
  for internal optimization.
- m68k ports share userland binaries (especially pkgsrc binaries)
  among all ports, so we need to define MAX_PAGE_SHIFT as 13 to
  support m68k ports where PAGE_SIZE==8192.
  (though this would affect only if static binaries built on
   4k page hosts are executed on 8k page hosts)

To solve these inconsistency on PAGE_SIZE definitions,
we should have an independent PAGE_SIZE related definitions
for userland, but it requires major reorganization.

For now (especially for netbsd-9) we define MAX/MIN PAGE_SIZE and
PAGE_SHIFT values in <m68k/vmparam.h> only in !defined(_KERNEL) case.

Discussed on source-changes-d@ and tech-kern@ with christos@ and thorpej@:
 https://mail-index.netbsd.org/source-changes-d/2020/01/thread1.html#012035
 https://mail-index.netbsd.org/tech-kern/2020/01/thread1.html#025954

Should be pulled up to netbsd-9.


To generate a diff of this commit:
cvs rdiff -u -r1.61 -r1.61.2.1 src/distrib/sets/lists/comp/ad.m68k
cvs rdiff -u -r1.47 -r1.47.4.1 src/sys/arch/amiga/include/vmparam.h
cvs rdiff -u -r1.33 -r1.33.4.1 src/sys/arch/atari/include/vmparam.h
cvs rdiff -u -r1.18 -r1.18.2.1 src/sys/arch/cesfic/include/vmparam.h
cvs rdiff -u -r1.40 -r1.40.2.1 src/sys/arch/hp300/include/vmparam.h
cvs rdiff -u -r1.22 -r1.22.2.1 src/sys/arch/luna68k/include/vmparam.h
cvs rdiff -u -r1.31 -r1.31.4.1 src/sys/arch/m68k/include/Makefile
cvs rdiff -u -r0 -r1.1.2.2 src/sys/arch/m68k/include/vmparam.h
cvs rdiff -u -r1.45 -r1.45.2.1 src/sys/arch/mac68k/include/vmparam.h
cvs rdiff -u -r1.37 -r1.37.2.1 src/sys/arch/mvme68k/include/vmparam.h
cvs rdiff -u -r1.22 -r1.22.2.1 src/sys/arch/news68k/include/vmparam.h
cvs rdiff -u -r1.26 -r1.26.2.1 src/sys/arch/next68k/include/vmparam.h
cvs rdiff -u -r1.37 -r1.37.42.1 src/sys/arch/sun3/include/vmparam.h
cvs rdiff -u -r1.39 -r1.39.2.1 src/sys/arch/x68k/include/vmparam.h

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