11 Commits

Author SHA1 Message Date
dfr
dd8b44b395 * Completely rewrite the alpha busspace to hide the implementation from
the drivers.
* Remove legacy inx/outx support from chipset and replace with macros
  which call busspace.
* Rework pci config accesses to route through the pcib device instead of
  calling a MD function directly.

With these changes it is possible to cleanly support machines which have
more than one independantly numbered PCI busses. As a bonus, the new
busspace implementation should be measurably faster than the old one.
2000-08-28 21:48:13 +00:00
peter
3b842d34e8 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
dfr
5d698a672d * Implement ISA dma (only for CIA now but more chipsets to follow).
* Port the fd driver to alpha.
1999-06-05 13:30:13 +00:00
gallatin
f8d64a0d5d Add support for multiple PCI "hoses" used on various alpha platforms.
The specific intent of this commit is to pave the way for importing
Compaq XP1000 support.  These changes should not affect the i386 port.

Reviewed by: Doug Rabson <dfr@nlsystems.com>
(actually, he walked me through most of it & deserves more than reviewd-by
credit )
1999-05-20 15:33:33 +00:00
peter
087d4857e5 Bring the 'new-bus' to the i386. This extensively changes the way the
i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition.  eisa, isapnp and pccard* are
not yet using the new resource manager.  Once fully converted, all drivers
will be loadable, including PCI and ISA.

(Some other changes appear to have snuck in, including a port of Soren's
 ATA driver to the Alpha.  Soren, back this out if you need to.)

This is a checkpoint of work-in-progress, but is quite functional.

The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.

Approved by:	core
1999-04-16 21:22:55 +00:00
dfr
3331f029dc * Add hooks to allow the X server to access I/O ports and memory.
* Update drivers to the latest version of the bus interface.

The ISA drivers' use of the new resource api is minimal.  Garrett has
some much cleaner drivers which should be more easily shared between
i386 and alpha.  This has only been tested on cia based machines.  It
should work on lca and apecs but I might have broken something.
1998-11-15 18:25:17 +00:00
dfr
685a5b889f Add functions for accessing dense and bwx memory for pci devices. These
routines are necessary to allow the use of certain types of hardware on
the alpha, particularly a Myrinet card.

Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
1998-10-06 14:18:40 +00:00
dfr
adbadeedc1 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
dfr
b5978db404 Add macros and chipset support for accessing device i/o memory on the alpha. 1998-07-22 08:25:39 +00:00
dfr
e377de494c Implement intr_create/intr_connect. 1998-07-12 16:16:22 +00:00
dfr
224577d6cf 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