thorpej
2fc1260cc0
Implement bus_dmamap_load_uio().
1998-07-17 21:09:59 +00:00
mjacob
9c326571d3
add a common logout printing routine file
1998-07-08 00:34:49 +00:00
thorpej
c7f8d02b23
Always count the number of strays we encounter, but don't send a "stopped
...
logging" message if we're ignoring strays.
1998-07-07 22:06:29 +00:00
jonathan
466e784ee1
defopt DDB.
1998-07-04 22:18:13 +00:00
ross
d273e10d2d
Protect against multiple inclusion.
1998-06-24 01:04:26 +00:00
thorpej
d08070a693
Add a comment describing the locking needs of the alpha_sgmap.
1998-06-06 20:12:28 +00:00
thorpej
59d76407b4
Display information about which sgmap we're attempting to initialize
...
if we die in alpha_sgmap_init().
1998-06-06 01:31:46 +00:00
thorpej
a51d42503c
Export the spill page PTE, and provide a hook to initialize it early.
1998-06-04 01:22:52 +00:00
thorpej
d6041754c2
Allow the DMA tag to specify a boundary contraint. If the device has a
...
more strict boundary, the map will use it, otherwise the map will inherit
the tag's, unless the tag's constraint is 0 (no boundary constraint).
1998-06-03 18:25:53 +00:00
thorpej
50be447da3
Sync the bus_dmamap_load back-end functions between alpha and i386. (only
...
slight, unnecessary differences)
1998-06-03 04:15:05 +00:00
matt
5d6bc16daa
more optimizations
1998-05-29 15:55:34 +00:00
matt
164da176e8
Add boundary checks to _bus_dma_load...
1998-05-29 15:25:07 +00:00
thorpej
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
thorpej
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
drochner
660e718e2e
Drivers for PC-like console devices are MI now.
1998-04-24 20:05:54 +00:00
mjacob
4ccb969d0b
Okay, handle the ALLOCNOW case by doing the appropriate adjustments
...
up front. Do the spacing arithmetic slightly differently.
1998-03-23 07:51:25 +00:00
thorpej
6bbfd3e9ff
Use pmap_kenter_pa() in _bus_dmamem_map() if PMAP_NEW.
1998-03-17 04:59:36 +00:00
thorpej
58509e699f
Add support for UVM.
1998-02-24 07:38:01 +00:00
thorpej
c26f962957
Use kernel_map in bus_dmamem_{map,free}().
1998-02-11 03:08:31 +00:00
thorpej
30aa56fc66
Use M_DMAMAP where appropriate.
1998-02-11 01:37:51 +00:00
thorpej
b1d8bffad8
Flush the CPU write buffer in _bus_dmamap_sync().
1998-02-04 07:35:30 +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
2d403996b2
Add dm_mapsize to bus_dmamap_t and rename BUS_DMAMEM_NOSYNC to
...
BUS_DMA_COHERENT.
1998-02-04 00:10:30 +00:00
thorpej
5fd0d10994
Add dm_mapsize to bus_dmamap_t and rename BUS_DMAMEM_NOSYNC toBUS_DMA_COHERENT.
1998-02-04 00:04:25 +00:00
thorpej
5ac7e550d1
Implement bus_dmamap_load_mbuf().
1998-01-27 02:35:58 +00:00
thorpej
9c3ef8899b
Don't conditionally define the sgmap_log_entry structure, and turn off
...
SGMAP logging by default.
1998-01-21 22:36:10 +00:00
thorpej
3d9cd8a05a
Extent names are const.
1998-01-21 22:34:38 +00:00
thorpej
12809e3434
If mapping only one segment of DMA memory into KVA space, use K0SEG.
1998-01-19 03:12:20 +00:00
thorpej
e62d894d7a
Implement a prefetch spill page for SGMAP DMA. This works around a slight
...
annoyance on systems that prefetch the next page during memory -> device
DMA if the DMA comes within a certain distance of the end of the current
page. This could cause machine checks since the PTE after the last page
would not have the valid bit set.
(I'm not going to complain about this slight kludge too much, since prefetch
makes DMA much faster...)
1998-01-18 00:05:33 +00:00
thorpej
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
thorpej
361179df26
Make debugging decisions at run-time, and place a handy DDB breakpoint
...
after a transfer has been mapped in the page table.
1998-01-17 03:38:51 +00:00
thorpej
2981fec2f0
Allow specification of a minimum page table alignment to alpha_sgmap_init().
...
This is to work around an apparent hardware bug in some 2117x chipsets
where the page table must be aligned to at least 32k.
1998-01-17 03:37:22 +00:00
thorpej
5419debcb7
Adjust for config changes.
1998-01-12 10:21:02 +00:00
thorpej
14807c2914
Use avail_start/avail_end.
1998-01-09 06:37:04 +00:00
thorpej
19c77efe96
In vga_erasecols(), fix botched count and reversed arguments to
...
bus_space_set_region_2(). From Chris Demetriou <cgd@pa.dec.com>.
1997-10-24 23:03:02 +00:00
thorpej
0c2efd7025
Add a "scrollskip" member to wscons_emulfuncs (XXX even though it's not
...
a function) which specifies how many lines will be skipped when scrolling
up when the bottom of the screen is reached. Dumb framebuffers skip 10
lines (as before) because the copies are s ... l ... o ... w, but it's
silly to skip 10 lines on VGA, since the copies are much faster, so we
only skip one in that case.
1997-09-25 01:31:53 +00:00
thorpej
2f657a6266
Add some debugging code to log sgmap activities. Also, make sure that
...
we return "no valid mappings" if there is an error while loading the
sgmap.
1997-09-05 02:21:49 +00:00
thorpej
55800b610a
Implement bus_dmamem_mmap().
1997-09-05 02:05:37 +00:00
thorpej
90798596fe
Remove references to vm_pmap.
1997-09-02 20:37:23 +00:00
thorpej
e7bb7bdc4b
Remove references to vm_pmap.
1997-09-02 20:11:24 +00:00
thorpej
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
thorpej
38f15737fd
Protect access to kmem_map with splimp()/splx(). From Chuck Cranor.
1997-08-25 21:17:48 +00:00
cgd
cfe8f450c7
update these to use the new 'correct' names for functions/constants
...
in bus.h.
1997-07-23 08:05:36 +00:00
cgd
9fae9984b0
remove a couple of outdated comments (pointed out by Kenneth Stailey
1997-07-23 07:56:05 +00:00
thorpej
413f678ce0
Pull the thorpej-bus-dma branch into the mainline.
1997-06-07 05:29:33 +00:00
thorpej
46b89d7739
Pull thorpej-bus-dma branch into mainline.
1997-06-06 23:54:24 +00:00
cgd
90789b53dd
by default, provide RCS IDs for NetBSD/alpha kernel files in kernel binaries.
...
This can be disabled (to save a bit of space) with the NO_KERNEL_RCSIDS
options, which is present but commented out in the ALPHA config file.
In ELF-format kernels, these strings are present in the kernel binary but
are not loaded into memory. (In ECOFF-format kernels, there's no easy way
to keep them from being loaded, so they _are_ loaded into memory.)
1997-04-07 23:39:37 +00:00
cgd
38d98acc9f
clean up NetBSD RCS ID strings, include machine/options.h
1997-04-06 22:55:59 +00:00
cgd
23e6c43870
clean up NetBSD RCS ID strings
1997-04-06 22:55:46 +00:00