CVS commit: src/sys/arch/sparc64/dev

[Takeshi Nakayama <nakayama%netbsd.org@localhost>]

Module Name:    src
Committed By:   nakayama
Date:           Mon Dec  7 11:14:27 UTC 2009

Modified Files:
        src/sys/arch/sparc64/dev: iommu.c

Log Message:
Avoid use of iommu_dvmamap_unload in error path.  It is too
expensive since it contains data cache flushing.

Some driver (tlp(4) with DM9201 on Netra X1) can only handle one
DMA segment, so it was called frequently.


To generate a diff of this commit:
cvs rdiff -u -r1.91 -r1.92 src/sys/arch/sparc64/dev/iommu.c

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