CVS log for src/sys/arch/alpha/pci/tsp_dma.c

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Keyword substitution: kv
Default branch: MAIN

Sync with HEAD.

For CIA/Pyxis and Tsunami/Typhoon/Titan, save the firmware's idea of
the DMA window configuration, and restore it at shutdown time.  Make
sure that all assumptions we've made on the firmware's configuration
of DMA windows is correct.

According to section 8.1.2.2 of the Tsunami/Typhoon hardware reference
manual (DS-0025A-TE), the SGMAP TLB is arranged as 168 locations of 4
consecutive quadwords.  It seems that on some revisions of the Pchip,
SGMAP translation is not perfectly reliable unless we align the DMA
segments to the TLBs natural boundaries (observed on the API CS20).

N.B. the Titan (as observed on a Compaq DS25) does not seem to have this
problem, but we'll play it safe and run this way on both variants.

PR port-alpha/40604.

Oops, pass the correct bus_dma_tag_t to the "hi" sgmap init function.

- Don't bother issuing a warning if we program the WBASE / WSM register
  to different values than the firmware.
- Reduce the differences in how we initialize the DMA tags vis a vis the
  other Alpha implementations.
- Use Window 2 to provide a 1G @ 3G PCI SGMAP window on systems with more
  than 1G of RAM, rather than falling back on the ISA DMA window which is
  small and could get starved by PCI devices.
- Make sure we set TBASE to 0 for direct-mapped windows.

Remove unnecessary #include <sys/malloc.h>

Sync w/ HEAD.

sync with head

The Tsunami / Typhoon chipsets have a static "monster window" for DMA
that allows for up to 32GB of RAM to be direct-mapped if the PCI device
can issue a 64-bit address (the monster window lives at 0x10000000000).
Enable this window and provide this to the PCI bus as a "dmat64".

Sync with HEAD.

Moar static.

Add some bus_dma instrumentation.

G/C alpha_XXX_dmamap() / alpha_XXX_dmamap_or.  They haven't been needed
for a long time.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

Add support for AlphaStation DS15.

Ported from OpenBSD via PR port-alpha/48148 by nullnilaki.
Note support for the secondary PCI bus still needs more improvements.

sync with head

merge to -current.

Do a minor cleanup of alpha (this will make applying pullups post branching
easier).
u_int{8,16,32,64}_t -> uint{*}_t
Change all old-style definitions to C89 prototypes.
Whitespace cleanup.
Constification in db_disasm.c

#include <sys/bus.h> instead of <machine/bus.h>.

sync with head

Remove unneeded includes of <uvm/uvm_extern.h>

Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.

sync with head.

Sync with HEAD.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

Sync with HEAD.

sync with head.

sync with head.

Remove clause 3 and 4 from TNF licenses

merge ktrace-lwp.

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

add __KERNEL_RCSID()  (using 1,  for #included .c files)

update to -current

Take a guess and initialize the prefetch threshold to 256 bytes.  Haven't
found this one in the manual yet.

file tsp_dma.c was added on branch nathanw_sa on 2001-07-19 19:09:23 +0000

Take a guess and initialize the prefetch threshold to 256 bytes.  Haven't
found this one in the manual yet.

Sync with HEAD

The code that creates/destroys SGMAP DMA maps is the same; put it
in a common place and share it.

Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.

remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

Sync w/ -current.

Support for EV6 Tsunami core logic and system type 6600.
This covers most or all of the presently-available 21264 systems.

file tsp_dma.c was added on branch netbsd-1-4 on 1999-06-29 06:46:48 +0000

file tsp_dma.c was added on branch chs-ubc2 on 1999-07-01 23:00:58 +0000

Support for EV6 Tsunami core logic and system type 6600.
This covers most or all of the presently-available 21264 systems.