CVS commit: [uebayasi-xip] src/sys/uvm

[Masao Uebayashi <uebayasi%netbsd.org@localhost>]

Module Name:    src
Committed By:   uebayasi
Date:           Tue Feb 23 07:44:25 UTC 2010

Modified Files:
        src/sys/uvm [uebayasi-xip]: uvm_extern.h uvm_page.c uvm_page.h

Log Message:
Introduce uvm_page_physload_device().  This registers a physical address
range of a device, similar to uvm_page_physload() for memories.  For now,
this is supposed to be called by MD code.  We have to consider the design
when we'll manage mmap'able character devices.

Expose paddr_t -> struct vm_page * conversion function for device pages,
uvm_phys_to_vm_page_device().  This will be called by XIP vnode pager.
Because it knows if a given vnode is a device page (and its physical
address base) or not.  Don't look up device segments, but directly make a
cookie.


To generate a diff of this commit:
cvs rdiff -u -r1.161 -r1.161.2.1 src/sys/uvm/uvm_extern.h
cvs rdiff -u -r1.153.2.12 -r1.153.2.13 src/sys/uvm/uvm_page.c
cvs rdiff -u -r1.59.2.12 -r1.59.2.13 src/sys/uvm/uvm_page.h

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