CVS commit: src/sys/arch

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Thu Jun 12 19:02:35 UTC 2014

Modified Files:
        src/sys/arch/amd64/include: vmparam.h
        src/sys/arch/i386/include: vmparam.h
        src/sys/arch/x86/include: machdep.h
        src/sys/arch/x86/x86: x86_machdep.c

Log Message:
Tweak x86 page freelists and add x86_select_freelist.

- Add 4G freelist to i386 -- there may be higher addresses if PAE.
- Add 64G and 1T freelists to amd64.
- Simplify freelist setup code and condense it into a table.
- Add x86_select_freelist to get a freelist guaranteed to yield
addresses no greater than a prescribed maximum address.

x86_select_freelist takes a uint64_t, not a paddr_t or bus_addr_t, so
that you can pass in, e.g., a 36-bit maximum address without needing
to write conditionals for i386/PAE.

No objections on port-x86:

https://mail-index.netbsd.org/port-i386/2014/05/21/msg003277.html
https://mail-index.netbsd.org/port-amd64/2014/05/21/msg002062.html


To generate a diff of this commit:
cvs rdiff -u -r1.34 -r1.35 src/sys/arch/amd64/include/vmparam.h
cvs rdiff -u -r1.79 -r1.80 src/sys/arch/i386/include/vmparam.h
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/x86/include/machdep.h
cvs rdiff -u -r1.64 -r1.65 src/sys/arch/x86/x86/x86_machdep.c

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