freebsd-dev/sys/i386
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
..
acpica Add some extra #ifdef stubs so that this compiles on 4.8. 2003-05-13 16:59:46 +00:00
bios Merge PC98 support. 2003-03-25 05:19:18 +00:00
compile Don't need the .keep_me files. Obrien and I committed past each other. 2001-07-01 23:35:44 +00:00
conf Make ciss usable under PAE 2003-05-21 07:17:06 +00:00
i386 Bring back bus_dmasync_op_t. It is now a typedef to an int, though the 2003-05-27 04:59:59 +00:00
ibcs2 - Replace inline implementations of sigprocmask() with calls to 2003-04-22 18:23:49 +00:00
include Rename BUS_DMAMEM_NOSYNC to BUS_DMA_COHERENT. 2003-05-30 20:40:33 +00:00
isa Style nits. 2003-05-07 17:21:38 +00:00
linux - Merge struct procsig with struct sigacts. 2003-05-13 20:36:02 +00:00
pci Initiate de-orbit burn for USE_PCI_BIOS_FOR_READ_WRITE. This has been 2003-02-18 03:36:49 +00:00
svr4 - Merge struct procsig with struct sigacts. 2003-05-13 20:36:02 +00:00
Makefile This commit adds basic support for the UFS2 filesystem. The UFS2 2002-06-21 06:18:05 +00:00