Commit Graph

31 Commits

Author SHA1 Message Date
jasone
769e0f974d Major update to the way synchronization is done in the kernel. Highlights
include:

* Mutual exclusion is used instead of spl*().  See mutex(9).  (Note: The
  alpha port is still in transition and currently uses both.)

* Per-CPU idle processes.

* Interrupts are run in their own separate kernel threads and can be
  preempted (i386 only).

Partially contributed by:	BSDi (BSD/OS)
Submissions by (at least):	cp, dfr, dillon, grog, jake, jhb, sheldonh
2000-09-07 01:33:02 +00:00
peter
da78ae6c96 Mass update of isa drivers using compatability shims to use
COMPAT_ISA_DRIVER() so that we can get rid of the evil isa_compat.h table.
2000-05-28 13:40:48 +00:00
jake
961b97d434 Back out the previous change to the queue(3) interface.
It was not discussed and should probably not happen.

Requested by:		msmith and others
2000-05-26 02:09:24 +00:00
jake
d93fbc9916 Change the way that the queue(3) structures are declared; don't assume that
the type argument to *_HEAD and *_ENTRY is a struct.

Suggested by:	phk
Reviewed by:	phk
Approved by:	mdodd
2000-05-23 20:41:01 +00:00
phk
1a34cea0e8 Isolate the Timecounter internals in their own two files.
Make the public interface more systematically named.

Remove the alternate method, it doesn't do any good, only ruins performance.

Add counters to profile the usage of the 8 access functions.

Apply the beer-ware to my code.

The weird +/- counts are caused by two repocopies behind the scenes:
	kern/kern_clock.c -> kern/kern_tc.c
	sys/time.h -> sys/timetc.h
(thanks peter!)
2000-03-20 14:09:06 +00:00
peter
38391cb38a Clean up some more loose ends..
isa_device->id_ri_flags and RI_FAST were not implemented and did nothing.
The two drivers that were mistakenly thinking this was working were
cy.c and loran.c - these should be converted to newbus.
GC (garbage collect) isa_device->id_alive
GC userconfig.c references to isa_device->id_scsiid (!).
2000-01-23 11:50:43 +00:00
peter
15b9bcb121 Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot).  This is consistant with the other
BSD's who made this change quite some time ago.  More commits to come.
1999-12-29 04:46:21 +00:00
peter
9b589f5598 Fix some warnings. 1999-11-18 08:41:53 +00:00
phk
e9e0512210 Remove five now unused fields from struct cdevsw. They should never
have been there in the first place.  A GENERIC kernel shrinks almost 1k.

Add a slightly different safetybelt under nostop for tty drivers.

Add some missing FreeBSD tags
1999-09-25 18:24:47 +00:00
phk
90bd101d4d Change scheduling to use on the fly determination rather than presorting. 1999-09-12 08:13:26 +00:00
peter
3b842d34e8 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
phk
6a5dc97620 Simplify cdevsw registration.
The cdevsw_add() function now finds the major number(s) in the
struct cdevsw passed to it.  cdevsw_add_generic() is no longer
needed, cdevsw_add() does the same thing.

cdevsw_add() will print an message if the d_maj field looks bogus.

Remove nblkdev and nchrdev variables.  Most places they were used
bogusly.  Instead check a dev_t for validity by seeing if devsw()
or bdevsw() returns NULL.

Move bdevsw() and devsw() functions to kern/kern_conf.c

Bump __FreeBSD_version to 400006

This commit removes:
        72 bogus makedev() calls
        26 bogus SYSINIT functions

if_xe.c bogusly accessed cdevsw[], author/maintainer please fix.

I4b and vinum not changed.  Patches emailed to authors.  LINT
probably broken until they catch up.
1999-05-31 11:29:30 +00:00
phk
7e4a9dced9 This commit should be a extensive NO-OP:
Reformat and initialize correctly all "struct cdevsw".

        Initialize the d_maj and d_bmaj fields.

        The d_reset field was not removed, although it is never used.

I used a program to do most of this, so all the files now use the
same consistent format.  Please keep it that way.

Vinum and i4b not modified, patches emailed to respective authors.
1999-05-30 16:53:49 +00:00
phk
23385f9acd Add compat hooks for DiskOnChip2000 driver.
Minor change to loran driver
1999-05-08 14:36:48 +00:00
peter
8b2ba20dd8 Fix a static/extern conflict. Put extra brackets to ensure the
tsleep() priority is clear and not parsed incorrectly.
1999-05-06 22:13:04 +00:00
dt
ba8c622703 s/static foo_devsw_installed = 0;/static int foo_devsw_installed;/.
(Edited automatically)
1999-04-28 10:54:24 +00:00
eivind
94b16edfb7 Staticize. 1999-04-11 03:06:07 +00:00
phk
76e92ae704 Best version so far. Flicker floor is now 2e-12. 1998-12-16 11:46:41 +00:00
archie
60d13c7a9d The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static
and local variables, goto labels, and functions declared but not defined.
1998-12-07 21:58:50 +00:00
archie
982e80577d Examine all occurrences of sprintf(), strcat(), and str[n]cpy()
for possible buffer overflow problems. Replaced most sprintf()'s
with snprintf(); for others cases, added terminating NUL bytes where
appropriate, replaced constants like "16" with sizeof(), etc.

These changes include several bug fixes, but most changes are for
maintainability's sake. Any instance where it wasn't "immediately
obvious" that a buffer overflow could not occur was made safer.

Reviewed by:	Bruce Evans <bde@zeta.org.au>
Reviewed by:	Matthew Dillon <dillon@apollo.backplane.com>
Reviewed by:	Mike Spengler <mks@networkcs.com>
1998-12-04 22:54:57 +00:00
phk
bfaec8d4e5 Update to current reality. We can now track several LORSTA on separate
minor devices.

Improve PLL/OCXO DAC dithering.

General remodeling.

Performance is now 2.5e-11 in frequency and +/- 100 nsec in time, both
of which are actually the limits of the transmitted signal.
1998-10-24 19:55:09 +00:00
phk
2e36499ddf Update timecounters to new interface. 1998-10-23 10:46:20 +00:00
bde
df88297cad Initialize isa_devtab entries for interrupt handlers in individual
device drivers, not in ioconf.c.  Use a different hack in isa_device.h
so that a new config(8) is not required yet.

pc98 parts approved by: kato
1998-10-22 05:58:45 +00:00
bde
4e2d834c27 Removed unused includes. 1998-08-17 19:09:36 +00:00
bde
89e8939de7 Fixed a type mismatch.
Fixed a missing extern declaration (bug for bug compatibly including
style bugs.  Should probably be static).
1998-08-17 18:47:36 +00:00
phk
8c3dc868d3 Add a member function more to the timecounters, this one is for use
with latch based PPS implementations.  The client that uses it will
be committed after more testing.
1998-06-07 20:36:55 +00:00
phk
7181862a6f most recent code for Loran driver. 1998-05-29 08:04:44 +00:00
bde
822ce77a65 Support compiling with `gcc-pedantic' (don't declare static arrays
with no size).
1998-04-19 15:36:12 +00:00
phk
b3e4247d70 Commit a much more functional version of this driver. 1998-04-05 19:26:08 +00:00
bde
b5ae2c779b Removed unused #includes. 1998-03-28 13:25:01 +00:00
phk
0461b69f80 Add the smallest and least useful device-driver by a fair margin... 1998-02-24 22:08:05 +00:00