smpatel 6b740ac6e9 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
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amd64	Added a $Id$ keyword. Bruce still needs to put a copyright notice	1996-04-08 16:41:06 +00:00
conf	Add vx0 device to GENERIC. Yes, I know that this bloats GENERIC, but	1996-03-20 10:42:56 +00:00
include	Changed bdb() to breakpoint() and always enable it.	1996-04-07 18:30:56 +00:00
isa	Add a lock for DMA Channels to prevent two devices from using the same DMA	1996-04-08 19:38:57 +00:00
pci	Removed now-unused #includes of <machine/cpu.h>. They were for bootverbose	1996-04-07 17:32:42 +00:00
Makefile	Removed all patch kit headers, sccsid and rcsid strings, put $Id$ in, some	1993-10-16 19:17:18 +00:00