Commit Graph

32 Commits

Author SHA1 Message Date
Jake Burkholder
fa2fbc3dac - Protect the callout wheel with a separate spin mutex, callout_lock.
- Use the mutex in hardclock to ensure no races between it and
  softclock.
- Make softclock be INTR_MPSAFE and provide a flag,
  CALLOUT_MPSAFE, which specifies that a callout handler does not
  need giant.  There is still no way to set this flag when
  regstering a callout.

Reviewed by:	-smp@, jlemon
2000-11-19 06:02:32 +00:00
John Baldwin
896c2303d4 - Replace some instances of sched_ithd with sched_swi in KTR tracepoints.
- Assert that Giant is not owned during the main loop of sithd_loop().
2000-11-15 22:05:23 +00:00
John Baldwin
b5d09a79b5 Ignore the INTR_MPSAFE flag when calculating the priority of an interrupt
thread.
2000-11-10 21:19:14 +00:00
John Baldwin
a924ab9741 Minor nit: missed ithd_loop -> sithd_loop in the KTR tracepoints. 2000-11-07 00:45:18 +00:00
John Baldwin
8088699f79 - Overhaul the software interrupt code to use interrupt threads for each
type of software interrupt.  Roughly, what used to be a bit in spending
  now maps to a swi thread.  Each thread can have multiple handlers, just
  like a hardware interrupt thread.
- Instead of using a bitmask of pending interrupts, we schedule the specific
  software interrupt thread to run, so spending, NSWI, and the shandlers
  array are no longer needed.  We can now have an arbitrary number of
  software interrupt threads.  When you register a software interrupt
  thread via sinthand_add(), you get back a struct intrhand that you pass
  to sched_swi() when you wish to schedule your swi thread to run.
- Convert the name of 'struct intrec' to 'struct intrhand' as it is a bit
  more intuitive.  Also, prefix all the members of struct intrhand with
  'ih_'.
- Make swi_net() a MI function since there is now no point in it being
  MD.

Submitted by:	cp
2000-10-25 05:19:40 +00:00
John Baldwin
35e0e5b311 Catch up to moving headers:
- machine/ipl.h -> sys/ipl.h
- machine/mutex.h -> sys/mutex.h
2000-10-20 07:58:15 +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
John Baldwin
9a94c9c5c3 - Remove the inthand2_t type and use the equivalent driver_intr_t type from
newbus for referencing device interrupt handlers.
- Move the 'struct intrec' type which describes interrupt sources into
  sys/interrupt.h instead of making it just be a x86 structure.
- Don't create 'ithd' and 'intrec' typedefs, instead, just use 'struct ithd'
  and 'struct intrec'
- Move the code to translate new-bus interrupt flags into an interrupt thread
  priority out of the x86 nexus code and into a MI ithread_priority()
  function in sys/kern/kern_intr.c.
- Remove now-uneeded x86-specific headers from sys/dev/ata/ata-all.c and
  sys/pci/pci_compat.c.
2000-09-13 18:33:25 +00:00
Peter Wemm
d1f088dab5 Trim unused options (or #ifdef for undoc options).
Submitted by:	phk
1999-10-11 15:19:12 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Peter Wemm
54a8c69347 Stage 1 of a cleanup of the i386 interrupt registration mechanism.
Interrupts under the new scheme are managed by the i386 nexus with the
awareness of the resource manager.  There is further room for optimizing
the interfaces still.  All the users of register_intr()/intr_create()
should be gone, with the exception of pcic and i386/isa/clock.c.
1999-04-21 07:26:30 +00:00
Peter Wemm
1c5bb3eaa1 add #include <sys/kernel.h> where it's needed by MALLOC_DEFINE() 1998-11-10 09:16:29 +00:00
Doug Rabson
da653c6148 Start using the new SWI registration system instead of hardwiring everything. 1998-09-26 14:25:32 +00:00
Bruce Evans
18c5a6c435 Implemented dynamic registration of software interrupt handlers. Not
used yet.

Use dummy SWI handlers to avoid some checks for null pointers.
1998-08-11 15:08:13 +00:00
Bruce Evans
a23d65bfc8 Cast pointers to uintptr_t/intptr_t instead of to u_long/long,
respectively.  Most of the longs should probably have been
u_longs, but this changes is just to prevent warnings about
casts between pointers and integers of different sizes, not
to fix poorly chosen types.
1998-07-15 02:32:35 +00:00
Bruce Evans
9a2daf9190 Changed the type of an isa/general interrupt handler to take a
`void *' arg.  Fixed or hid most of the resulting type mismatches.
Handlers can now be updated locally (except for reworking their
global declarations in isa_device.h).
1998-06-18 15:32:09 +00:00
Doug Rabson
3900ddb2dc Only build this on i386 for now. I may use it for the alpha later but
currently it doesn't compile.
1998-06-11 07:23:59 +00:00
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
Bruce Evans
ab36c3d3e7 Really finish supporting compiling with `gcc -ansi'. 1998-04-17 04:53:44 +00:00
Eivind Eklund
cfa5673efd Move include of <machine/ipl.h> inside ifndef SMP where it is used, to
avoid getting 'unused include file' warnings in the SMP case.
1998-02-10 17:10:23 +00:00
Nate Williams
fd35ecc322 - Hide the 'device doesn't supported shared interrupts' code behind
bootverbose, since the older register_intr() code didn't print out
  anything, and the laptop support will cause lots of these un-necessary
  messages.
1997-10-06 04:27:32 +00:00
Steve Passe
fbca51f50a Added a half dozen casts to eliminate annoying warnings. 1997-08-21 06:39:41 +00:00
Steve Passe
77625cfe0b Moved splq() to isa/ipl_funcs.c for SMP only.
This is in preperation for moving all cpl accesses behind a critical region lock.
1997-08-20 05:19:49 +00:00
Bruce Evans
1fd0b0588f Removed unused #includes. 1997-08-02 14:33:27 +00:00
Andrey A. Chernov
c6d372f6f3 Back out changes for 'conflicts' with IRQ, remove intr_registered() 1997-07-09 18:06:25 +00:00
Andrey A. Chernov
7f533ff73f Add safety check in case "conflicts" keyword specified more times than
needed
1997-06-08 17:15:31 +00:00
Doug Rabson
0c514a25a0 The defines INTR_FAST and INTR_EXCL are part of the public interface. The
previous commit made them private which broke things.
1997-06-02 10:46:28 +00:00
Doug Rabson
683523378c Move interrupt handling code from isa.c to a new file. This should make
isa.c (slightly) more portable and will make my life developing the really
portable version much easier.

Reviewed by:	peter, fsmp
1997-06-02 08:19:06 +00:00
Peter Wemm
8c046d14dc Move "typedef struct intrec {} intrec" from sys/interrupt.h to kern_intr.c
since that's the only place that it's used.

Submitted by: se  (apparently on suggestion from dfr)
1997-06-01 16:05:14 +00:00
Peter Wemm
4407ec71c7 <machine/spl.h> -> <machine/ipl.h>
s/intrmask/intrmask_t/g

Reviewed by: bde, se
1997-05-31 09:30:39 +00:00
Stefan Eßer
f9220cde63 Fix problem reported by PHK: Panic in pcic probe because of NULL pointer
dereference (head->next in intr_disconnect).
1997-05-28 22:11:00 +00:00
Stefan Eßer
425f9fda52 Add support for shared interrupts to the kernel. This code is meant
be (eventually) architecture independent. It provides an emulation
of the ISA interrupt registration function register_intr(), but that
function does no longer manipulated the interrupt controller and
interrupt descriptor table, but calls the architecture dependent
function setup_icu() for that purpose.

After theISA/EISA bus code has been modified to directly call the new
interrupt registartion functions (intr_create() and intr_connect()),
the emulation of register_intr() should be dropped.

The C level interrupt handler function should take a (void*) argument,
and the function pointer type (inthand2_t) should defined in some  other
place than isa_device.h.

This commit is a pre-requisite for the removal of the PCI specific shared
interrupt code.

Reviewed by:	dfr,bde
1997-05-26 14:37:43 +00:00