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Sujal Patel 1dce4e5d60 Add a lock for DMA Channels to prevent two devices from using the same DMA
channel at the same time.  The functions isa_dma_acquire() and
isa_dma_release() should be used in all ISA drivers which call isa_dmastart().
This can be used more generally to register the usage of DMA channels in
any driver, but it is required for drivers using isa_dmastart() and friends.

Clean up sanity checks, error messages, etc.
Remove isa_dmadone_nobounce(), it is no longer needed

Reviewed by:	bde
1996-04-08 19:38:57 +00:00
bin Correct some cross references and some path names. 1996-04-06 09:47:30 +00:00
eBones Clarify some paths in the man pages. 1996-04-06 09:59:05 +00:00
etc Add rplay. 1996-04-07 01:16:37 +00:00
games Correct some man page cross references and file location references. 1996-04-07 00:06:21 +00:00
gnu Save screen before calling any fire() callbacks - you never know what 1996-04-08 10:28:07 +00:00
include Slightly simplify inlined functions 1996-03-25 13:46:21 +00:00
lib Do not install the now unsupported netns and netiso 1996-04-08 05:15:09 +00:00
libexec Correct some man page xrefs, and some other minor changes to bring some 1996-04-08 04:18:31 +00:00
lkm Add in qcam module (forgot) 1996-03-24 00:30:38 +00:00
release Major surgery. 1996-04-07 03:52:36 +00:00
sbin Do not install the now unsupported netns and netiso 1996-04-08 05:15:09 +00:00
secure Comment out the NOPROFILE=yes to make this orthogonal with the rest of our 1996-03-17 15:43:32 +00:00
share Remove some rogue section headings that jordan left way back in v1.9 in a 1996-04-08 15:01:04 +00:00
sys Add a lock for DMA Channels to prevent two devices from using the same DMA 1996-04-08 19:38:57 +00:00
tools Don't look in libkern, it went away. 1995-12-29 01:51:23 +00:00
usr.bin Don't reference NULL pointers if owner and/or group are omitted. 1996-04-08 10:59:36 +00:00
usr.sbin Correct some man page xrefs, and some other minor changes to bring some 1996-04-08 04:18:31 +00:00
COPYRIGHT This is the official 4.4 Lite copyright. 1994-09-11 07:53:28 +00:00
Makefile Re-instate the bootstrap target which can be used to build tools 1996-03-24 13:16:45 +00:00