Module Name:	syssrc
Committed By:	thorpej
Date:		Thu Jul 19 04:27:37 UTC 2001

Modified Files:
	syssrc/sys/arch/alpha/common: sgmap_common.c sgmap_typedep.c sgmapvar.h
	syssrc/sys/arch/alpha/include: bus.h

Log Message:
Simplify the SGMAP code a bit, and move SGVA allocation out of a
common routine into the individual load routines, since each load
routine needs to muddle with the "internals" of this operation.

Add a `prefetch threshold' member to the bus_dma_tag_t, so that
eventually we can determine whether or not to allocate a spill
page on a per-mapping basis.


To generate a diff of this commit:
cvs rdiff -r1.17 -r1.18 syssrc/sys/arch/alpha/common/sgmap_common.c
cvs rdiff -r1.16 -r1.17 syssrc/sys/arch/alpha/common/sgmap_typedep.c
cvs rdiff -r1.12 -r1.13 syssrc/sys/arch/alpha/common/sgmapvar.h
cvs rdiff -r1.43 -r1.44 syssrc/sys/arch/alpha/include/bus.h

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