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PR/52468 CVS commit: [netbsd-8] src/sys/dev/isa

The following reply was made to PR kern/52468; it has been noted by GNATS.

From: "Martin Husemann" <>
Subject: PR/52468 CVS commit: [netbsd-8] src/sys/dev/isa
Date: Thu, 7 Jun 2018 19:39:54 +0000

 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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