src/sys/alpha/include, branch release/4.0.0_cvs

This commit was manufactured by cvs2svn to create tag

2000-03-20T08:47:53+00:00

'RELENG_4_0_0_RELEASE'.

This commit was manufactured to restore the state of the 4.0-RELEASE image.
Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

This commit was manufactured by cvs2svn to create branch 'RELENG_4'.

2000-03-13T04:59:44+00:00

Patches that eliminate extra context switches in FIFO case.

2000-03-02T16:20:07+00:00

Fixes p1003_1b regression test in the simple case of no RR and
FIFO processes competing.

Reviewed by:	jkh, bde

* Fix the memory probing code so that it sees all memory clusters, not

2000-02-29T08:48:10+00:00

  just the first one.
* Don't reserve extra memory for the prom console unless the platform
  actually uses it.
* Fix some historical confusion and a minor bug in the message buffer
  initialisation.

Submitted by: gallatin for the prom console part
Approved by: jkh

Update the ata driver to take more advantage of newbus, this

2000-02-18T20:57:33+00:00

was needed to make attach/detach of devices work, which is
needed for the PCCARD support.
(PCCARD support is still not working though, more to come on that)

Support the CMD646 chip which is used on many alphas, sadly only
in WDMA2 mode, as the silicon is broken beyond belief for UDMA modes.

Lots of cosmetic fixes here and there.

Sorry for the size of this megapatchfromhell but it was not
possible otherwise...

newbus patches based on work from: dfr (Doug Rabson)

Don't include in in the i386 case. This

2000-02-17T18:37:45+00:00

fixes some namespace pollution in general and breakage of modules that
aren't in the sys tree in particular ( includes further
headers that aren't installed under /usr/include).

Reimplemented SPLASSERT() so that it is more machine independent and
less bloated and doesn't require the  include spam.
In particular, don't assume that `cpl' can be printed using %08x
format.  The alpha arch doesn't even have `cpl'.  SPLASSERT() was
harmless on alphas because it isn't actually used.

Add functions which allow i/o memory to be accessed without forcing a

2000-02-12T14:57:01+00:00

memory barrier (needed for XFree86 4.0).

Approved by: jkh

Fix breakage from last commit- macro was broken. I appreciate the

2000-01-16T19:02:29+00:00

committer's fixing things for alpha, but I sure wish they could
have compiled on one!

The kernel side of per-process unaligned access control (printing, fixing &

2000-01-16T07:07:33+00:00

delivering SIGBUS).  This will allow a non-superuser to control unaligned
access behaviour on a per-process basis once a userland control program
(uac) is written.

Reviewed by: obrien
Tested by:   obrien

Add SPLASSERT() macro. SPLASSERT() compiles to a no-op

2000-01-16T02:10:21+00:00

        unless both "option INVARIANTS" and "options INVARIANT_SUPPORT"
        are defined in the kernel's config(8) file.

        SPLASSERT(expression, msg) used KASSERT to check that the
        expression is true, panic()ing the kernel otherwise.

Approved by: jkh
Reviewed by: jdp, dfr, phk, eivind and green