Bruce Evans dd87702a51 Allocate DMA bounce buffers only when requested by drivers. Only the ... fd and wt drivers need bounce buffers, so this normally saves 32K-1K of kernel memory. Keep track of which DMA channels are busy. isa_dmadone() must now be called when DMA has finished or been aborted. Panic for unallocated and too-small (required) bounce buffers. fd.c: There will be new warnings about isa_dmadone() not being called after DMA has been aborted. sound/dmabuf.c: isa_dmadone() needs more parameters than are available, so temporarily use a new interface isa_dmadone_nobounce() to avoid having to worry about panics for fake parameters. Untested.		1996-01-27 02:33:48 +00:00
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amd64	Allocate DMA bounce buffers only when requested by drivers. Only the	1996-01-27 02:33:48 +00:00
conf	Added a comment above the npx0 device line	1996-01-20 06:14:33 +00:00
include	Allocate DMA bounce buffers only when requested by drivers. Only the	1996-01-27 02:33:48 +00:00
isa	Allocate DMA bounce buffers only when requested by drivers. Only the	1996-01-27 02:33:48 +00:00
pci	Completed function declarations and/or added prototypes and/or added	1995-12-16 00:27:59 +00:00
Makefile	Removed all patch kit headers, sccsid and rcsid strings, put $Id$ in, some	1993-10-16 19:17:18 +00:00