Commit Graph

365 Commits

Author SHA1 Message Date
Yoshihiro Takahashi
a8ef346171 Merged from sys/i386/i386/machdep.c revision 1.454. 2001-06-02 06:30:56 +00:00
Yoshihiro Takahashi
d4336cd071 Disabled unneeded code for PC98.
Submitted by:	NOKUBI Hirotaka <nokubi@ff.iij4u.or.jp>
2001-06-02 05:51:21 +00:00
Yoshihiro Takahashi
bd0432d8b0 Update pc98 memory probe functions.
- pc98_getmemsize() function returns available memory size under 16MB.
 - getmemsize() function is merged from PC-AT's one.

Submitted by:	chi@bd.mbn.or.jp (Chiharu Shibata) and
		NOKUBI Hirotaka <nokubi@ff.iij4u.or.jp>
2001-05-21 12:51:44 +00:00
Yoshihiro Takahashi
2877ab5bdb Merged from sys/i386/i386/machdep.c revisions 1.452 and 1.453. 2001-05-21 11:57:54 +00:00
John Baldwin
8bd57f8fc2 Remove unneeded includes of sys/ipl.h and machine/ipl.h. 2001-05-15 23:22:29 +00:00
KATO Takenori
55ffce7e4f Merged from sys/i386/i386/machdep.c revision 1.450. 2001-05-15 08:32:01 +00:00
John Baldwin
ba228f6d96 - Split out the support for per-CPU data from the SMP code. UP kernels
have per-CPU data and gdb on the i386 at least needs access to it.
- Clean up includes in kern_idle.c and subr_smp.c.

Reviewed by:	jake
2001-05-10 17:45:49 +00:00
KATO Takenori
3c4848ae4a Merged from sys/i386/i386/machdep.c revision 1.448. 2001-05-06 09:18:32 +00:00
KATO Takenori
281238b184 Merged the rest of changes in sys/i386/i386/machdep.c revision 1.447. 2001-05-02 13:48:39 +00:00
John Baldwin
6caa8a1501 Overhaul of the SMP code. Several portions of the SMP kernel support have
been made machine independent and various other adjustments have been made
to support Alpha SMP.

- It splits the per-process portions of hardclock() and statclock() off
  into hardclock_process() and statclock_process() respectively.  hardclock()
  and statclock() call the *_process() functions for the current process so
  that UP systems will run as before.  For SMP systems, it is simply necessary
  to ensure that all other processors execute the *_process() functions when the
  main clock functions are triggered on one CPU by an interrupt.  For the alpha
  4100, clock interrupts are delievered in a staggered broadcast fashion, so
  we simply call hardclock/statclock on the boot CPU and call the *_process()
  functions on the secondaries.  For x86, we call statclock and hardclock as
  usual and then call forward_hardclock/statclock in the MD code to send an IPI
  to cause the AP's to execute forwared_hardclock/statclock which then call the
  *_process() functions.
- forward_signal() and forward_roundrobin() have been reworked to be MI and to
  involve less hackery.  Now the cpu doing the forward sets any flags, etc. and
  sends a very simple IPI_AST to the other cpu(s).  AST IPIs now just basically
  return so that they can execute ast() and don't bother with setting the
  astpending or needresched flags themselves.  This also removes the loop in
  forward_signal() as sched_lock closes the race condition that the loop worked
  around.
- need_resched(), resched_wanted() and clear_resched() have been changed to take
  a process to act on rather than assuming curproc so that they can be used to
  implement forward_roundrobin() as described above.
- Various other SMP variables have been moved to a MI subr_smp.c and a new
  header sys/smp.h declares MI SMP variables and API's.   The IPI API's from
  machine/ipl.h have moved to machine/smp.h which is included by sys/smp.h.
- The globaldata_register() and globaldata_find() functions as well as the
  SLIST of globaldata structures has become MI and moved into subr_smp.c.
  Also, the globaldata list is only available if SMP support is compiled in.

Reviewed by:	jake, peter
Looked over by:	eivind
2001-04-27 19:28:25 +00:00
Yoshihiro Takahashi
0e319a247e Merged from sys/i386/i386/machdep.c revision 1.446. 2001-04-01 06:40:45 +00:00
KATO Takenori
ff11a33db4 Merged from sys/i386/i386/machdep.c revision 1.445. 2001-03-23 08:57:22 +00:00
John Baldwin
19eb87d22a Grab the process lock while calling psignal and before calling psignal. 2001-03-07 03:37:06 +00:00
KATO Takenori
c558d45a97 Merged from sys/i386/i386/machdep.c revision 1.443. 2001-02-25 08:00:35 +00:00
Peter Wemm
f1532aadee Activate USER_LDT by default. The new thread libraries are going to
depend on this.  The linux ABI emulator tries to use it for some linux
binaries too.  VM86 had a bigger cost than this and it was made default
a while ago.

Reviewed by:	jhb, imp
2001-02-23 01:25:02 +00:00
KATO Takenori
3affb09cee Merged from sys/i386/i386/machdep.c revision 1.441. 2001-02-21 10:20:11 +00:00
Jeroen Ruigrok van der Werven
d7d97eb0aa Preceed/preceeding are not english words. Use precede and preceding. 2001-02-18 10:43:53 +00:00
John Baldwin
929604ec9b Move the initailization of the proc lock for proc0 very early into the MD
startup code.
2001-02-09 16:25:16 +00:00
Bosko Milekic
9ed346bab0 Change and clean the mutex lock interface.
mtx_enter(lock, type) becomes:

mtx_lock(lock) for sleep locks (MTX_DEF-initialized locks)
mtx_lock_spin(lock) for spin locks (MTX_SPIN-initialized)

similarily, for releasing a lock, we now have:

mtx_unlock(lock) for MTX_DEF and mtx_unlock_spin(lock) for MTX_SPIN.
We change the caller interface for the two different types of locks
because the semantics are entirely different for each case, and this
makes it explicitly clear and, at the same time, it rids us of the
extra `type' argument.

The enter->lock and exit->unlock change has been made with the idea
that we're "locking data" and not "entering locked code" in mind.

Further, remove all additional "flags" previously passed to the
lock acquire/release routines with the exception of two:

MTX_QUIET and MTX_NOSWITCH

The functionality of these flags is preserved and they can be passed
to the lock/unlock routines by calling the corresponding wrappers:

mtx_{lock, unlock}_flags(lock, flag(s)) and
mtx_{lock, unlock}_spin_flags(lock, flag(s)) for MTX_DEF and MTX_SPIN
locks, respectively.

Re-inline some lock acq/rel code; in the sleep lock case, we only
inline the _obtain_lock()s in order to ensure that the inlined code
fits into a cache line. In the spin lock case, we inline recursion and
actually only perform a function call if we need to spin. This change
has been made with the idea that we generally tend to avoid spin locks
and that also the spin locks that we do have and are heavily used
(i.e. sched_lock) do recurse, and therefore in an effort to reduce
function call overhead for some architectures (such as alpha), we
inline recursion for this case.

Create a new malloc type for the witness code and retire from using
the M_DEV type. The new type is called M_WITNESS and is only declared
if WITNESS is enabled.

Begin cleaning up some machdep/mutex.h code - specifically updated the
"optimized" inlined code in alpha/mutex.h and wrote MTX_LOCK_SPIN
and MTX_UNLOCK_SPIN asm macros for the i386/mutex.h as we presently
need those.

Finally, caught up to the interface changes in all sys code.

Contributors: jake, jhb, jasone (in no particular order)
2001-02-09 06:11:45 +00:00
Poul-Henning Kamp
e1d756ce2a Remove the LABPC driver.
Doesn't work, no maintainer, more promising code exists elsewhere.
2001-02-04 11:18:15 +00:00
Peter Wemm
7aef6a1e88 All the world is not an i386. Merge rev 1.438 of i386/i386/machdep.c.
Make buffer_map a system map.
2001-02-04 07:00:47 +00:00
Peter Wemm
03927d3c33 Send "#if NISA > 0" to the bit-bucket and replace it with an option.
These were compile-time "is the isa code present?" tests and not
'how many isa busses' tests.
2001-01-29 09:38:39 +00:00
Peter Wemm
9ff4ede1d0 Gag. These compiled because I had a stray "eisa.h" in my config dir. 2001-01-29 08:40:16 +00:00
Peter Wemm
52a90b77f9 change 'count eisa' to 'optional eisa' and update the only consumer
of 'NEISA' - userconfig.c.
While there, send some defunct code to the file history.
2001-01-29 08:19:02 +00:00
KATO Takenori
c30d5afab4 Synced with sys/i386/i386/machdep.c revision 1.436. 2001-01-28 11:06:28 +00:00
Jason Evans
d1c1b8413e Remove MUTEX_DECLARE() and MTX_COLD. Instead, postpone full mutex
initialization until after malloc() is safe to call, then iterate through
all mutexes and complete their initialization.

This change is necessary in order to avoid some circular bootstrapping
dependencies.
2001-01-21 07:52:20 +00:00
Peter Wemm
aaa69bf4d0 Zap unused #include "apm.h" 2001-01-19 13:56:31 +00:00
Peter Wemm
558226eae7 Use #ifdef DEV_NPX from opt_npx.h instead of #if NNPX > 0 from npx.h 2001-01-19 13:19:02 +00:00
Bosko Milekic
08812b3925 Implement MTX_RECURSE flag for mtx_init().
All calls to mtx_init() for mutexes that recurse must now include
the MTX_RECURSE bit in the flag argument variable. This change is in
preparation for an upcoming (further) mutex API cleanup.
The witness code will call panic() if a lock is found to recurse but
the MTX_RECURSE bit was not set during the lock's initialization.

The old MTX_RECURSE "state" bit (in mtx_lock) has been renamed to
MTX_RECURSED, which is more appropriate given its meaning.

The following locks have been made "recursive," thus far:
eventhandler, Giant, callout, sched_lock, possibly some others declared
in the architecture-specific code, all of the network card driver locks
in pci/, as well as some other locks in dev/ stuff that I've found to
be recursive.

Reviewed by: jhb
2001-01-19 01:59:14 +00:00
Peter Wemm
e44a0ea311 Stop doing runtime checking on i386 cpus for cpu class. The cpu is
slow enough as it is, without having to constantly check that it really
is an i386 still.  It was possible to compile out the conditionals for
faster cpus by leaving out 'I386_CPU', but it was not possible to
unconditionally compile for the i386.  You got the runtime checking whether
you wanted it or not.  This makes I386_CPU mutually exclusive with the
other cpu types, and tidies things up a little in the process.

Reviewed by:  alfred, markm, phk, benno, jlemon, jhb, jake, grog, msmith,
              jasone, dcs, des (and a bunch more people who encouraged it)
2001-01-16 09:10:34 +00:00
KATO Takenori
7590772d33 Merged from sys/i386/i386/machdep.c revisions 1.427 and 1.428. 2001-01-12 13:39:50 +00:00
Yoshihiro Takahashi
a1abfd66ea Correct typo.
Submitted by:	chi@bd.mbn.or.jp (Chiharu Shibata)
2001-01-08 09:17:58 +00:00
KATO Takenori
e93f5a3faa Merged from sys/i386/i386/machdep.c revision 1.426. 2001-01-07 07:59:19 +00:00
KATO Takenori
bf0611e746 Merged from sys/i386/i386/machdep.c revision 1.425. 2000-12-16 03:25:08 +00:00
David Malone
7cc0979fd6 Convert more malloc+bzero to malloc+M_ZERO.
Submitted by:	josh@zipperup.org
Submitted by:	Robert Drehmel <robd@gmx.net>
2000-12-08 21:51:06 +00:00
KATO Takenori
86a86b1be0 Merged from sys/i386/i386/machdep.c revision 1.424. 2000-12-05 09:33:11 +00:00
Marcel Moolenaar
d034d459da Don't use p->p_sigstk.ss_flags to keep state of whether the
process is on the alternate stack or not. For compatibility
with sigstack(2) state is being updated if such is needed.

We now determine whether the process is on the alternate
stack by looking at its stack pointer. This allows a process
to siglongjmp from a signal handler on the alternate stack
to the place of the sigsetjmp on the normal stack. When
maintaining state, this would have invalidated the state
information and causing a subsequent signal to be delivered
on the normal stack instead of the alternate stack.

PR: 22286
2000-11-30 05:23:49 +00:00
KATO Takenori
504a7aad9e Merged from sys/i386/i386/userconfig.c revision 1.185. 2000-11-29 12:31:13 +00:00
KATO Takenori
69c963801b Merged from sys/i386/i386/machdep.c revision 1.422. 2000-11-26 06:29:33 +00:00
KATO Takenori
76b86dfba6 Merged from sys/i386/i386/machdep.c revision 1.421. 2000-11-20 12:06:08 +00:00
Yoshihiro Takahashi
6ffb65e8b1 Merged from the following changes.
sys/conf/Makefile.i386      1.211
sys/conf/files.i386         1.329
sys/isa/fd.c                1.186, 1.188 and 1.189
sys/isa/sio.c               1.305 and 1.317
sys/i386/conf/GENERIC       1.270, 1.281, 1.282 and 1.284
sys/i386/i386/machdep.c     1.419
sys/i386/i386/userconfig.c  1.184
2000-11-05 14:31:19 +00:00
Yoshihiro Takahashi
12f1a08005 Fixed extention memory check routine.
Submitted by:	chi@bd.mbn.or.jp (Chiharu Shibata)
2000-10-28 11:16:42 +00:00
Poul-Henning Kamp
46aa3347cb Convert all users of fldoff() to offsetof(). fldoff() is bad
because it only takes a struct tag which makes it impossible to
use unions, typedefs etc.

Define __offsetof() in <machine/ansi.h>

Define offsetof() in terms of __offsetof() in <stddef.h> and <sys/types.h>

Remove myriad of local offsetof() definitions.

Remove includes of <stddef.h> in kernel code.

NB: Kernelcode should *never* include from /usr/include !

Make <sys/queue.h> include <machine/ansi.h> to avoid polluting the API.

Deprecate <struct.h> with a warning.  The warning turns into an error on
01-12-2000 and the file gets removed entirely on 01-01-2001.

Paritials reviews by:   various.
Significant brucifications by:  bde
2000-10-27 11:45:49 +00:00
KATO Takenori
6a8ef4f44f Merged from sys/i386/i386/machdep.c revisions 1.417 and 1.418. 2000-10-20 10:17:26 +00:00
KATO Takenori
a5414135aa Merged from sys/i386/i386/machdep.c revision 1.416. 2000-10-18 09:05:09 +00:00
KATO Takenori
c25b32ae9d Merged from sys/i386/i386/machdep.c revision 1.415. 2000-10-06 11:43:51 +00:00
KATO Takenori
32c0e11c56 Merged from sys/i386/i386/machdep.c revision 1.414. 2000-10-03 13:27:31 +00:00
Yoshihiro Takahashi
0a917604f0 Added NEC PC-9801-83, 84, PC-9801-103, 104, PC-9801N-25 and PC-9801N-J02R
support which use National Semiconductor DP8393X (SONIC) as ethernet
controller. Currently, this driver is used on only PC-98.

Submitted by:	Motomichi Matsuzaki <mzaki@e-mail.ne.jp>
Obtained from:	NetBSD/pc98
2000-10-02 14:27:20 +00:00
KATO Takenori
7324718bc0 Merged from sys/i368/i386/machdep.c revision 1.413. 2000-10-02 08:57:21 +00:00
Bosko Milekic
7d03271452 Big mbuf subsystem diff #1: incorporate mutexes and fix things up somewhat
to accomodate the changes.

 Here's a list of things that have changed (I may have left out a few); for a
 relatively complete list, see http://people.freebsd.org/~bmilekic/mtx_journal

   * Remove old (once useful) mcluster code for MCLBYTES > PAGE_SIZE which
     nobody uses anymore. It was great while it lasted, but now we're moving
     onto bigger and better things (Approved by: wollman).

   * Practically re-wrote the allocation macros in sys/sys/mbuf.h to accomodate
     new allocations which grab the necessary lock.

   * Make sure that necessary mbstat variables are manipulated with
     corresponding atomic() routines.

   * Changed the "wait" routines, cleaned it up, made one routine that does
     the job.

   * Generalized MWAKEUP() macro. Got rid of m_retry and m_retryhdr, as they
     are now included in the generalized "wait" routines.

   * Sleep routines now use msleep().

   * Free lists have locks.

   * etc... probably other stuff I'm missing...

  Things to look out for and work on later:

   * find a better way to (dynamically) adjust EXT_COUNTERS

   * move necessity to recurse on a lock from drain routines by providing
     lock-free lower-level version of MFREE() (and possibly m_free()?).

   * checkout include of mutex.h in sys/sys/mbuf.h - probably violating
     general philosophy here.

   The code has been reviewed quite a bit, but problems may arise... please,
   don't panic! Send me Emails: bmilekic@freebsd.org

Reviewed by: jlemon, cp, alfred, others?
2000-09-30 06:30:39 +00:00