freebsd-skq/sys/alpha
Hiten Pandya b77c32a07e Rename BUS_DMAMEM_NOSYNC to BUS_DMA_COHERENT.
The current name is confusing, because it indicates to
the client that a bus_dmamap_sync() operation is not
necessary when the flag is specified, which is wrong.

The main purpose of this flag is to hint the underlying
architecture that DMA memory should be mapped in a coherent
way, but the architecture can ignore it.  But if the
architecture does supports coherent mapping of memory, then
it makes bus_dmamap_sync() calls cheap.

This flag is the same as the one in NetBSD's Bus DMA.

Reviewed by: gibbs, scottl, des (implicitly)
Approved by: re@ (jhb)
2003-05-30 20:40:33 +00:00
..
alpha Bring back bus_dmasync_op_t. It is now a typedef to an int, though the 2003-05-27 04:59:59 +00:00
compile
conf There's just no reason to not have these in GENERIC. 2003-05-18 20:39:15 +00:00
include Rename BUS_DMAMEM_NOSYNC to BUS_DMA_COHERENT. 2003-05-30 20:40:33 +00:00
isa
linux - Replace inline implementations of sigprocmask() with calls to 2003-04-22 18:23:49 +00:00
mcbus
osf1 - Merge struct procsig with struct sigacts. 2003-05-13 20:36:02 +00:00
pci
tlsb
Makefile