git: kernel: Add a method to get the bus's bus_dma_tag_t

[Francois Tigeot]

commit 9bddf981f10827e6bb06d2b93dda4f610ef9a5ce
Author: François Tigeot <ftig...@wolfpond.org>
Date:   Fri Oct 11 15:30:41 2013 +0200

    kernel: Add a method to get the bus's bus_dma_tag_t
    
    This is required by some machine architectures where there are separate
    IOMMU's for each PCI bus.
    
    Obtained-from: FreeBSD

Summary of changes:
 sys/kern/bus_if.m   | 11 ++++++++++-
 sys/kern/subr_bus.c | 33 +++++++++++++++++++++++++++++++++
 sys/sys/bus.h       |  3 +++
 3 files changed, 46 insertions(+), 1 deletion(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/9bddf981f10827e6bb06d2b93dda4f610ef9a5ce


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