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author | marius <marius@FreeBSD.org> | 2011-04-21 21:56:28 +0000 |
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committer | marius <marius@FreeBSD.org> | 2011-04-21 21:56:28 +0000 |
commit | 72db64ceeaeef4fc6ff9287d3f3da51be1657bf0 (patch) | |
tree | a1d47c7c2354d8cbc35ae6450bc5d72c73ecb0b5 /sys/ddb/db_ps.c | |
parent | 67b7f32d210bfb9796258a6989b0e1706e8c7bab (diff) | |
download | FreeBSD-src-72db64ceeaeef4fc6ff9287d3f3da51be1657bf0.zip FreeBSD-src-72db64ceeaeef4fc6ff9287d3f3da51be1657bf0.tar.gz |
- 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.
Diffstat (limited to 'sys/ddb/db_ps.c')
0 files changed, 0 insertions, 0 deletions