CVS commit: src/sys/sys

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

Module Name:    src
Committed By:   thorpej
Date:           Sun Mar  8 02:42:00 UTC 2020

Modified Files:
        src/sys/sys: bus.h

Log Message:
Add BUS_ADDR_{LO,HI}32() macros to correctly extract the lower and
upper halves of 64-bit DMA addresses for 32-bit and 64-bit bus_addr_t.
This is a common pattern in modern drivers, so it's a good idea to provide
a common correct definition.

This particular implementation suggested by riastradh@.


To generate a diff of this commit:
cvs rdiff -u -r1.12 -r1.13 src/sys/sys/bus.h

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