Commit Graph

10 Commits

Author SHA1 Message Date
John Baldwin
98f9879242 Introduce a standard name for the lock protecting an interrupt controller
and it's associated state variables: icu_lock with the name "icu".  This
renames the imen_mtx for x86 SMP, but also uses the lock to protect
access to the 8259 PIC on x86 UP.  This also adds an appropriate lock to
the various Alpha chipsets which fixes problems with Alpha SMP machines
dropping interrupts with an SMP kernel.
2001-12-20 23:48:31 +00:00
John Baldwin
522be16a94 Use the MI ithread helper functions in the alpha hardware interrupt code. 2001-02-09 17:53:23 +00:00
John Baldwin
90652ed180 - Modify alpha_setup_intr() to take interrupt handler flags as an additional
argument.  These flags include INTR_FAST, INTR_MPSAFE, etc.
- Properly handle INTR_EXCL when it is passed in to allow an interrupt
  handler to claim exclusive ownership of an interrupt thread.
- Add support for psuedo-fast interrupts on the alpha.  For fast interrupts,
  we don't allocate an interrupt thread; instead, during dispatching of an
  interrupt, we run the handler directly instead of scheduling the thread
  to run.  Note that the handler is currently run without Giant and must be
  MP safe.  The only fast handler currently is for the sio driver.

Requested by:	dfr
2000-11-01 18:40:02 +00:00
John Baldwin
1931cf940a - Heavyweight interrupt threads on the alpha for device I/O interrupts.
- Make softinterrupts (SWI's) almost completely MI, and divorce them
  completely from the x86 hardware interrupt code.
  - The ihandlers array is now gone.  Instead, there is a MI shandlers array
    that just contains SWI handlers.
  - Most of the former machine/ipl.h files have moved to a new sys/ipl.h.
- Stub out all the spl*() functions on all architectures.

Submitted by:	dfr
2000-10-05 23:09:57 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Doug Rabson
e63149c330 Add support for 'vmstat -i'.
Submitted by: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
Obtained from: NetBSD
1998-11-28 09:55:16 +00:00
Doug Rabson
08b6a4cbee * 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
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
56abfaf4eb Add some generic interrupt dispatch code. 1998-07-12 16:09:30 +00:00
John Birrell
7fed2e3a32 These are a few of the alpha machine dependent header files - the first
referenced by the build of user-space libraries. These files were
obtained from NetBSD (with ansi.h being modified to reflect the FreeBSD
off_t and pid_t implementation).
1998-01-10 10:13:16 +00:00