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| author | jmg <jmg@FreeBSD.org> | 2006-09-03 00:27:42 +0000 |
|---|---|---|
| committer | jmg <jmg@FreeBSD.org> | 2006-09-03 00:27:42 +0000 |
| commit | c25fb06d921a770f65a0f6e25dc1e92e4e1b5227 (patch) | |
| tree | 2d913a3cb79e7a1579bdad59426344b90355f220 /sys/dev/gem | |
| parent | 84ee477ac39bc8414949b4df724f390aac837627 (diff) | |
| download | FreeBSD-src-c25fb06d921a770f65a0f6e25dc1e92e4e1b5227.zip FreeBSD-src-c25fb06d921a770f65a0f6e25dc1e92e4e1b5227.tar.gz | |
add a newbus method for obtaining the bus's bus_dma_tag_t... This is
required by arches like sparc64 (not yet implemented) and sun4v where there
are seperate IOMMU's for each PCI bus... For all other arches, it will
end up returning NULL, which makes it a no-op...
Convert a few drivers (the ones we've been working w/ on sun4v) to the
new convection... Eventually all drivers will need to replace the parent
tag of NULL, w/ bus_get_dma_tag(dev), though dev is usually different for
each driver, and will require hand inspection...
Reviewed by: scottl (earlier version)
Diffstat (limited to 'sys/dev/gem')
| -rw-r--r-- | sys/dev/gem/if_gem.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sys/dev/gem/if_gem.c b/sys/dev/gem/if_gem.c index 3efe0ed..ed9fd56 100644 --- a/sys/dev/gem/if_gem.c +++ b/sys/dev/gem/if_gem.c @@ -153,9 +153,10 @@ gem_attach(sc) gem_reset(sc); GEM_UNLOCK(sc); - error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, - BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, GEM_NSEGS, - BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, &sc->sc_pdmatag); + error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, + BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, + MCLBYTES, GEM_NSEGS, BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, + &sc->sc_pdmatag); if (error) goto fail_ifnet; |
