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CVS commit: [netbsd-8] src/sys/dev/isa

Module Name:    src
Committed By:   martin
Date:           Thu Jun  7 19:39:54 UTC 2018

Modified Files:
        src/sys/dev/isa [netbsd-8]: isadma.c isadmareg.h isareg.h

Log Message:
Pull up following revision(s) (requested by jdolecek in ticket #841):

        sys/dev/isa/isadmareg.h: revision 1.9
        sys/dev/isa/isareg.h: revision 1.10
        sys/dev/isa/isadma.c: revision 1.67

fix off-by-one in the mapping of the ISA DMA page registers, they actually
start at 0x81; the code used bus_space_map() starting from 0x80 but
used +1 offset for actual I/O, now it maps starting 0x81 and does I/O
without offset

the reads and writes work exactly the same as before, but this frees
0x80 for being mapped independantly
patch provided in PR kern/52468 by Jonathan Chapman; checked against the spec
and also FreeBSD sys/x86/isa/isa_dma.c

To generate a diff of this commit:
cvs rdiff -u -r1.66 -r1.66.52.1 src/sys/dev/isa/isadma.c
cvs rdiff -u -r1.8 -r1.8.80.1 src/sys/dev/isa/isadmareg.h
cvs rdiff -u -r1.9 -r1.9.156.1 src/sys/dev/isa/isareg.h

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

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