Commit Graph

16 Commits

Author SHA1 Message Date
Doug Rabson
8a99777019 Update the alpha port to use the new syscons.
Submitted by: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> (partly)
1999-01-23 16:53:30 +00:00
Andrew Gallatin
1e176a8ad1 Added support for the DEC EB64PLUS systype. (Part III)
o Add the EB64PLUS systype into the kernel configuration files
and add it to the GENERIC kernel

o Correct mcclock_isa.c's dependence on cia, it should depend on isa.
  This will allow avanti and eb64+ kernels to be built without the cia
  chipset support code.
1999-01-18 20:26:50 +00:00
Doug Rabson
5b38fe900d Implement 'software completion' for floating point arithmetic. On the
alpha, operations involving non-finite numbers or denormalised numbers
or operations which should generate such numbers will cause an arithmetic
exception.  For programs which follow some strict code generation rules,
the kernel trap handler can then 'complete' the operation by emulating
the faulting instruction.

To use software completion, a program must be compiled with the arguments
'-mtrap-precision=i' and '-mfp-trap-mode=su' or '-mfp-trap-mode=sui'.
Programs compiled in this way can use non-finite and denormalised numbers
at the expense of slightly less efficient code generation of floating
point instructions.  Programs not compiled with these options will receive
a SIGFPE signal when non-finite or denormalised numbers are used or
generated.

Reviewed by: John Polstra <jdp@polstra.com>
1998-12-04 10:52:48 +00:00
Doug Rabson
225b9157e6 Don't include link_elf.c twice in the link. 1998-11-15 18:15:06 +00:00
Nicolas Souchu
710c119cf7 Update configuration files for the perl based makedevops script.
Submitted by: Nick Hibma <nick.hibma@jrc.it>
Approved by:  Doug Rabson <dfr@nlsystems.com>
1998-11-08 18:39:57 +00:00
Gary Palmer
1383f617d2 Make kernel build on alpha again. New kld stuff needs rindex. 1998-10-10 18:32:18 +00:00
Doug Rabson
9604f809cd Merge with the latest i386 syscons. 1998-09-17 09:38:36 +00:00
Doug Rabson
657d6e769c Change to cam. 1998-09-16 08:22:09 +00:00
Doug Rabson
feb6634586 Device framework code now declared in MI code. 1998-09-07 07:29:30 +00:00
Doug Rabson
2e809930ba Add atomic.s. 1998-08-24 08:48:22 +00:00
Doug Rabson
19df33b637 Add support for TurboChannel alphas (DEC 3000/300 and 3000/500).
Obtained from: NetBSD
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
1998-08-20 08:27:11 +00:00
Doug Rabson
8a7b91802a Lots of changes, including:
* Support for AlphaStation 200, 250, 255, 400
* Untested support for UDB, Multia, AXPpci33 (Noname)
* Support for Personal Workstation 433a/433au, 500a/500au, 600a/600au (Miata)
* Some minor fixes and improvements to interrupt handling.

Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> (AS200, Miata)
Obtained from: NetBSD (some code for AS200, Miata, Noname)
1998-08-10 07:53:59 +00:00
Doug Rabson
515cfabc48 Add KN20AA support.
Add entries for syscons.
1998-07-22 08:24:39 +00:00
Doug Rabson
8777a8098d Add some bits and pieces for my test box. 1998-07-12 16:26:52 +00:00
Doug Rabson
99d11cde56 Major changes to the generic device framework for FreeBSD/alpha:
* Eliminate bus_t and make it possible for all devices to have
  attached children.

* Support dynamically extendable interfaces for drivers to replace
  both the function pointers in driver_t and bus_ops_t (which has been
  removed entirely.  Two system defined interfaces have been defined,
  'device' which is mandatory for all devices and 'bus' which is
  recommended for all devices which support attached children.

* In addition, the alpha port defines two simple interfaces 'clock'
  for attaching various real time clocks to the system and 'mcclock'
  for the many different variations of mc146818 clocks which can be
  attached to different alpha platforms.  This eliminates two more
  function pointer tables in favour of the generic method dispatch
  system provided by the device framework.

Future device interfaces may include:

* cdev and bdev interfaces for devfs to use in replacement for specfs
  and the fixed interfaces bdevsw and cdevsw.

* scsi interface to replace struct scsi_adapter (not sure how this
  works in CAM but I imagine there is something similar there).

* various tailored interfaces for different bus types such as pci,
  isa, pccard etc.
1998-06-14 13:46:10 +00:00
Doug Rabson
897cd717a5 Add initial support for the FreeBSD/alpha kernel. This is very much a
work in progress and has never booted a real machine.  Initial
development and testing was done using SimOS (see
http://simos.stanford.edu for details).  On the SimOS simulator, this
port successfully reaches single-user mode and has been tested with
loads as high as one copy of /bin/ls :-).

Obtained from: partly from NetBSD/alpha
1998-06-10 10:57:29 +00:00