CVS commit: syssrc/sys/dev/dmover

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

Module Name:    syssrc
Committed By:   thorpej
Date:           Fri Aug  2 00:30:41 UTC 2002

Added Files:
        syssrc/sys/dev/dmover: Makefile dmover_backend.c dmover_io.c
            dmover_io.h dmover_process.c dmover_request.c dmover_session.c
            dmover_util.c dmovervar.h files.dmover swdmover.c

Log Message:
dmover(9) -- an interface to hardware-assisted data movers.  This allows
clients to use a hardware-assisted data mover to clear a region of memory,
fill a region of memory with a specific value, copy a region of memory,
and perform simple boolean operations such as XOR on multiple regions
of memory.

Included here is a software back-end which can serve as an example of
how to write a back-end (and also provides a fall-back in case hardware
for a given function is not available), as well as a dmoverio(4) pseudo-
device which provides access to dmover(9) to userland via a message
passing interface.

dmover(9) is still a work-in-progress -- a few minor changes to the
interface are expected.


To generate a diff of this commit:
cvs rdiff -r0 -r1.1 syssrc/sys/dev/dmover/Makefile \
    syssrc/sys/dev/dmover/dmover_backend.c syssrc/sys/dev/dmover/dmover_io.c \
    syssrc/sys/dev/dmover/dmover_io.h syssrc/sys/dev/dmover/dmover_process.c \
    syssrc/sys/dev/dmover/dmover_request.c \
    syssrc/sys/dev/dmover/dmover_session.c \
    syssrc/sys/dev/dmover/dmover_util.c syssrc/sys/dev/dmover/dmovervar.h \
    syssrc/sys/dev/dmover/files.dmover syssrc/sys/dev/dmover/swdmover.c

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