CVS commit: src/sys/uvm

["Matt Thomas" <matt%netbsd.org@localhost>]

Module Name:    src
Committed By:   matt
Date:           Tue Jan  4 08:26:33 UTC 2011

Modified Files:
        src/sys/uvm: uvm_extern.h uvm_fault.c uvm_km.c uvm_page.c

Log Message:
Add better color matching selecting free pages.  KM pages will now allocated
so that VA and PA have the same color.  On a page fault, choose a physical
page that has the same color as the virtual address.

When allocating kernel memory pages, allow the MD to specify a preferred
VM_FREELIST from which to choose pages.  For machines with large amounts
of memory (> 4GB), all kernel memory to come from <4GB to reduce the amount
of bounce buffering needed with 32bit DMA devices.


To generate a diff of this commit:
cvs rdiff -u -r1.167 -r1.168 src/sys/uvm/uvm_extern.h
cvs rdiff -u -r1.178 -r1.179 src/sys/uvm/uvm_fault.c
cvs rdiff -u -r1.106 -r1.107 src/sys/uvm/uvm_km.c
cvs rdiff -u -r1.168 -r1.169 src/sys/uvm/uvm_page.c

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