git: busdma: Add PROTECTED bus_dma_tag_create() flag.
commit c26842b6106804dc56cbcd5031662d4553b57a0c
Author: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date: Mon Dec 27 16:24:03 2010 +0800
busdma: Add PROTECTED bus_dma_tag_create() flag.
PROTECTED
All of the functions called with the dma_tag are already protected by
the caller, so busdma code need not to protect the internal data
structures. Panic, if the "defered dmamap load callback" is going to
happen.
When used along with PRIVBZONE, ALLOCALL and ALLOCNOW, it could greatly
reduce the work load of fixing all of the drivers that mal-use busdma
functions.
Summary of changes:
sys/platform/pc32/i386/busdma_machdep.c | 10 ++++++++++
sys/platform/pc64/x86_64/busdma_machdep.c | 10 ++++++++++
sys/sys/bus_dma.h | 2 ++
3 files changed, 22 insertions(+), 0 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/c26842b6106804dc56cbcd5031662d4553b57a0c
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