49aa171ab9
Add support for chaining DMA windows together, for falling back on
...
SGMAPs if a direct-mapped window fails.
1998-05-13 21:21:16 +00:00
4665241bf8
Simplify the direct-mapped DMA case somewhat by adding a window base
...
member to the DMA tag, and calling the direct-mapped back-ends directly,
rather than through chipset-specific front-ends which pass the window
base as an additional argument.
1998-05-07 20:09:37 +00:00
8e5970917e
Redo it slightly so that S/G now appears to work a bit better. This
...
version has 2GB direct map starting at 2GB, and either 256MB or 1GB
S/G starting at 1MB. I've done *some* testing on this, but I'm not
quite happy with it yet.
1998-03-23 07:42:40 +00:00
612aea038c
Use the common _bus_dmamap_sync() as the _dmamap_sync method in the
...
bus_dma_tag_t.
1998-02-04 07:37:28 +00:00
3366b987d0
Put SGMAP-related stuff in the DMA map structure directly, rather than
...
indirecting through a pointer.
1998-01-17 21:53:52 +00:00
9554b5a243
Update for "minptalign" argument to alpha_sgmap_init().
1998-01-17 03:40:32 +00:00
693b3e7262
Nuke the idea of <machine/options.h>. It completely defeats the purpose
...
of fine-grain option dependencies.
1997-09-02 13:17:47 +00:00
46b89d7739
Pull thorpej-bus-dma branch into mainline.
1997-06-06 23:54:24 +00:00
thorpej