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24 Commits

Author SHA1 Message Date
thorpej 2c4c690f14 Add the BUS_DMA_STREAMING flag. 2001-03-07 22:42:16 +00:00
pk 406e0f779f Add a `device class' interrupt level argument (from machine/intr.h) 
to bus_interrupt_establish().

It's currently only used in sparc64/dev/psycho.c to assign a CPU interrupt
level to devices in PCI slots.
 2000-07-09 20:57:41 +00:00
simonb 889c658b5b Change the kernel mmap interface so that the offset to map is an 
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes.  Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.
 2000-06-26 04:55:19 +00:00
pk 0790f00e68 Maintain the DVMA map extent subregion boundaries in the bus_dma map 
structure.
 2000-06-24 22:47:45 +00:00
pk 5c1633af0d Fix pastos in bus_space_read_region_*() functions. 2000-06-21 13:41:23 +00:00
pk 1273031c4d Simplify the bus_dma(9) implementation: 
- the `alignment' and `boundary' arguments in bus_dmamem_alloc() only
  serve as hints on how to break up a DMA transaction into chunks
  when necessary; it is not necessary on sparc DVMA hardware.

- exclusively use the VM page size (i.e. PAGE_SIZE et.al.) when computing
  resource allocations.

- remember the size of DVMA resource allocations in the private `_ds_sgsize'
  field in a dma segment descriptor.
 2000-05-23 11:39:57 +00:00
pk 2d12c9e33b The bus_dma(9) implementation now allocates DVMA addresses in 
bus_dmamap_load_*() routines only. Note that DMA memory buffers
allocated with bus_dmamem_alloc() _must_ be loaded by bus_dmamap_load_raw().
 2000-05-09 22:39:35 +00:00
drochner 8eb798e603 define a "BUS_SPACE_MAP_PREFETCHABLE" flag which basically means that 
device accesses are idempotent (but should not be cached by the CPU)
 2000-01-25 22:13:17 +00:00
drochner 76fa1751fe Add a macro to check for sufficient pointer alignment in bus.h context, 
"BUS_SPACE_ALIGNED_POINTER()".
Equal to the param.h "ALIGNED_POINTER()" normally, but obeys additional
requirements of the bus_space_xxx_n() macros. (BUS_SPACE_DEBUG)
 1999-03-23 21:29:03 +00:00
drochner cc66380116 fix address incrementing in the read_region_N, write_region_N, 
set_region_N and copy_region_N methods
 1999-01-29 16:30:51 +00:00
pk 2e89e9144b Turn a bunch of bus_space_*() macros into in-line functions mostly to avoid 
variable aliasing.
 1998-11-26 23:50:52 +00:00
pk bc98f448b8 Turn the passed tag into "used" arguments. 1998-11-22 21:52:24 +00:00
pk b8a1caac4a Convert to [pv]addr_t & [pv]size_t. 1998-08-21 14:12:18 +00:00
pk 862c0bafcc Define a BUS_DMA flag for devices that have a 24-bit address space. 
Update _bus_dma* prototypes.
 1998-07-30 22:20:31 +00:00
pk 286472fe4d * Pass the bus tag instead of just the cookie to all bus space methods. 
* In the bus tag structure, keep a reference to the parent bus.
* Express all bus space methods as inline functions in stead of macros
  and use the parent bus tag reference to find the nearest "upstream"
  bus that implements the method.
 1998-04-07 20:07:23 +00:00
pk 11928be0ff `sparc_bus_mmap()' declaration moved to machdep.c 1998-03-29 22:00:33 +00:00
pk 2a65520c69 bus_space_probe() prototype. 1998-03-28 19:45:29 +00:00
pk 9e69994eaa Add `interrupt establish' and ` device mmap' methods and macros to 
match to the bus tag structure.
 1998-03-21 19:31:27 +00:00
thorpej 8abe76d2f0 Add offset and length parameters to bus_dmamap_sync(), used for specifiying 
partial syncs of a DMA mapping.
 1998-02-04 05:12:46 +00:00
thorpej 99cc8482d1 Change the last argument of bus_dmamap_sync() from bus_dmasync_op_t to int, 
and allow more than one synchronization operation to be specified in
a single call.  Dissallow mixing of PRE and POST operations.
 1998-02-04 01:57:27 +00:00
thorpej a7c5c1ef3c Add dm_mapsize to bus_dmamap_t and rename BUS_DMAMEM_NOSYNC to 
BUS_DMA_COHERENT.
 1998-02-04 00:32:55 +00:00
pk 1842a317c3 Fix parenthesis inbalance. 1998-01-13 20:53:38 +00:00
pk 4759b4c5ff Re-do the `busdma' interface. 1997-11-23 16:31:28 +00:00
pk b74bcd140c The sparc's bus.h. 1997-11-02 21:28:33 +00:00