thorpej
Mon Oct 21 15:41:24 PDT 1996
Update of /cvsroot/src/sys/dev/isa
In directory netbsd1:/var/slash-tmp/cvs-serv8131

Modified Files:
	aha.c ahavar.h ast.c bha_isa.c boca.c com.c comvar.h cy_isa.c 
	elink.c elink.h if_ed.c if_eg.c if_el.c if_ep_isa.c if_ie.c 
	if_iy.c if_levar.h isa.c isavar.h lpt.c rtfps.c uha_isa.c 
Log Message:
New bus.h implementation/interface:
	- No more distinction between i/o-mapped and memory-mapped
	  devices.  It's all "bus space" now, and space tags
	  differentiate the space with finer grain than the
	  bus chipset tag.
	- Add memory barrier methods.
	- Implement space alloc/free methods.
	- Implement region read/write methods (like memcpy to/from
	  bus space).
This interface provides a better abstraction for dealing with
machine-independent chipset drivers.