fvdl d88cf589cb A few ISA sound drivers like to share dma channels, and hence deferred ... isa_dmamap_create() calls to their open/close entrypoints. This worked with some luck, but broke on i386 when _bus_dmamap_create started to allocate bounce buffers upfront, since memory below 16M may well not be available when the sound devices is opened for the Nth time. To fix this, create a new simple interface, isa_drq_alloc/isa_drq_free, wrappers around already existing bitmask macros. These are expected to be used before an isa_dmamap_create call, and after an isa_dmamap_destroy call, respectively. For the sb and ad1848 drivers, they're deferred until open/close. All isa_dmamap_create calls can now use BUS_DMA_ALLOCNOW and be done at attach time.		2003-05-09 23:51:25 +00:00
..
compile	Rework how KERNOBJDIR functions; now it's always determined with	2003-01-06 17:40:18 +00:00
conf	DMA, not dma nor Dma.	2003-05-03 18:10:37 +00:00
include	A few ISA sound drivers like to share dma channels, and hence deferred	2003-05-09 23:51:25 +00:00
isa	Use CFATTACH_DECL().	2002-10-02 04:55:47 +00:00
mipsco	Change return type of readdisklabel() to const char *	2003-05-02 08:45:10 +00:00
obio	DMA, not dma nor Dma.	2003-05-03 18:10:37 +00:00
stand	Update for LFSv2 support. Ports that have "bootxx_lfs"-style	2003-02-23 23:23:07 +00:00
Makefile	Rework how KERNOBJDIR functions; now it's always determined with	2003-01-06 17:40:18 +00:00