Scott Long 5193a34646 Implement bus_dmamem_alloc_size() and bus_dmamem_free_size() as ... counterparts to bus_dmamem_alloc() and bus_dmamem_free(). This allows the caller to specify the size of the allocation instead of it defaulting to the max_size field of the busdma tag. This is intended to aid in converting drivers to busdma. Lots of hardware cannot understand scatter/gather lists, which forces the driver to copy the i/o buffers to a single contiguous region before sending it to the hardware. Without these new methods, this would require a new busdma tag for each operation, or a complex internal allocator/cache for each driver. Allocations greater than PAGE_SIZE are rounded up to the next PAGE_SIZE by contigmalloc(), so this is not suitable for multiple static allocations that would be better served by a single fixed-length subdivided allocation. Reviewed by: jake (sparc64)		2003-01-29 07:25:27 +00:00
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alpha	Implement bus_dmamem_alloc_size() and bus_dmamem_free_size() as	2003-01-29 07:25:27 +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	- Introduce the SCHED_ULE and SCHED_4BSD options for compile time selection	2003-01-26 05:29:12 +00:00
include	Implement bus_dmamem_alloc_size() and bus_dmamem_free_size() as	2003-01-29 07:25:27 +00:00
isa	Tidy up some loose ends.	2002-04-29 07:43:16 +00:00
linux	- Add support for IPC_64 extensions into shmctl(2), semctl(2) and msgctl(2);	2002-10-11 11:43:09 +00:00
mcbus	Initialise the AS4100 console at the same time as most of the other	2002-03-26 19:46:40 +00:00
osf1	Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.	2003-01-21 08:56:16 +00:00
pci	At great personal risk, add a __packed and __aligned(x) define that	2002-09-23 05:55:10 +00:00
tlsb	Fix warnings when compiled with SIMOS defined.	2002-11-08 20:52:21 +00:00
Makefile	Add a dopey makefile to do the tags dance, which is probably not perfect	2000-12-31 23:26:34 +00:00