Date: Thu, 21 Apr 2011 21:56:28 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/sparc64/sparc64 iommu.c Message-ID: <201104212156.p3LLulj1084845@repoman.freebsd.org>
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marius 2011-04-21 21:56:28 UTC
FreeBSD src repository
Modified files:
sys/sparc64/sparc64 iommu.c
Log:
SVN rev 220931 on 2011-04-21 21:56:28Z by marius
- Use the streaming cache unless BUS_DMA_COHERENT is specified. Since
r220375 all drivers enabled in the sparc64 GENERIC should be either
correctly using bus_dmamap_sync(9) calls or supply BUS_DMA_COHERENT
when appropriate or as a workaround for missing bus_dmamap_sync(9)
calls (sound(4) drivers and partially sym(4)). In at least some
configurations taking advantage of the streaming cache results in
a modest performance improvement.
- Remove the memory barrier for BUS_DMASYNC_PREREAD which as the
comment already suggested is bogus.
- Add my copyright for having implemented several things like support
for the Fire and Oberon IOMMUs, taking over PROM IOMMU mappings etc.
Revision Changes Path
1.54 +1 -13 src/sys/sparc64/sparc64/iommu.c
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