Commit Graph

1569 Commits

Author SHA1 Message Date
Doug Rabson
71d645d0a2 Initialise the AS4100 console at the same time as most of the other
platform types instead of deferring it until the mcpcia devices are
probed. This allows the use of e.g. kgdb before the busses are probed.
2002-03-26 19:46:40 +00:00
Wilko Bulte
e38bec6c63 plip has produced an error during attach on Alpha as long as I care
to remember. Nobody in the right sense of their mind would run IP on
the parallel port on Alpha so comment this one out.
2002-03-24 14:35:20 +00:00
David E. O'Brien
c543d983fa Guard against redefining __gnuc_va_list. 2002-03-24 11:25:46 +00:00
David E. O'Brien
439a4003ab ASM versions of __FBSDID. 2002-03-23 02:01:27 +00:00
Andrew Gallatin
60c406ad95 only read from the possibly bad address if we did not get a machine
check.  I don't know how this went unnoticed for so long.

obtained from: NetBSD
MFC after: 7 days
2002-03-22 15:55:56 +00:00
Andrew Gallatin
496ffc90e4 Allow SMP kernels (like GENERIC..) to boot on UP kernels on the alpha.
Pointy hat to: jeff
2002-03-22 15:54:31 +00:00
Andrew Gallatin
ddf23aa842 shut up the compiler 2002-03-21 18:48:00 +00:00
Warner Losh
b70c0e8b00 Fix abuses of cpu_critical_{enter,exit} by converting to
intr_{disable,restore} as well as providing an implemenation of
intr_{disable,restore}.
2002-03-21 06:14:58 +00:00
John Baldwin
f25fcd64b8 Change the way we ensure td_ucred is NULL if DIAGNOSTIC is defined.
Instead of caching the ucred reference, just go ahead and eat the
decerement and increment of the refcount.  Now that Giant is pushed down
into crfree(), we no longer have to get Giant in the common case.  In the
case when we are actually free'ing the ucred, we would normally free it on
the next kernel entry, so the cost there is not new, just in a different
place.  This also removse td_cache_ucred from struct thread.  This is
still only done #ifdef DIAGNOSTIC.

Tested on:	i386, alpha
2002-03-20 21:09:09 +00:00
David E. O'Brien
d0ce7d0078 Remove __P(). This was tested on the GENERIC kernel. 2002-03-20 18:58:47 +00:00
Jeff Roberson
851031501a Remove references to vm_zone.h and switch over to the new uma API. 2002-03-20 10:35:22 +00:00
Jeff Roberson
c186f9b280 Remove unused header. 2002-03-20 09:46:04 +00:00
Jeff Roberson
df66668c42 Force the boot cpu to wait for the APs to finish starting up. This eliminates
a race where the AP and the boot cpu were trying to printf at the same time,
which was confusing the console too much for it to continue working.
2002-03-20 02:27:55 +00:00
Jeff Roberson
8355f576a9 This is the first part of the new kernel memory allocator. This replaces
malloc(9) and vm_zone with a slab like allocator.

Reviewed by:	arch@
2002-03-19 09:11:49 +00:00
Dag-Erling Smørgrav
a2e0658045 Move the definition of PT_[GS]ET{,DB,FP}REGS from the MD ptrace.h to the
MI ptrace.h, since all platforms define them.  Keep the MD ptrace.h around
for FIX_SSTEP (which is currently only needed on Alpha).
2002-03-16 00:25:53 +00:00
Dag-Erling Smørgrav
830c02d426 Remove a bogus cast and deconstification that broke the Alpha kernel build. 2002-03-13 19:16:41 +00:00
Dag-Erling Smørgrav
979f47f40d Back out previous commit, it was the wrong patch! 2002-03-13 19:13:41 +00:00
Dag-Erling Smørgrav
51238e752e Remove a bogus cast that breaks the Alpha kernel build due to -Werror. 2002-03-13 19:12:31 +00:00
John Baldwin
bb7d54e8c7 Fix a misspelling of mine: s/optomization/optimization/.
Noticed by:	bmilekic
2002-03-11 19:58:53 +00:00
John Baldwin
ee1b1a6549 Grrr, turn preemption back off on the alpha again. It is still not stable.
Noticed by:	wilko, mjacob, jhb, peter, and others
2002-03-11 19:35:10 +00:00
Mike Barcroft
d846855da8 o Don't require long long support in bswap64() functions.
o In i386's <machine/endian.h>, macros have some advantages over
  inlines, so change some inlines to macros.
o In i386's <machine/endian.h>, ungarbage collect word_swap_int()
  (previously __uint16_swap_uint32), it has some uses on i386's with
  PDP endianness.

Submitted by:	bde

o Move a comment up in <machine/endian.h> that was accidentially moved
  down a few revisions ago.
o Reenable userland's use of optimized inline-asm versions of
  byteorder(3) functions.
o Fix ordering of prototypes vs. redefinition of byteorder(3)
  functions, so that the non-GCC (libc asm) case has proper
  prototypes.
o Add proper prototypes for byteorder(3) functions in <sys/param.h>.
o Prevent redundant duplicate prototypes by making use of the
  _BYTEORDER_PROTOTYPED define.
o Move the bswap16(), bswap32(), bswap64() C functions into MD space
  for platforms in which asm versions don't exist.  This significantly
  reduces the complexity of some things at the cost of duplicate code.

Reviewed by:	bde
2002-03-09 21:02:16 +00:00
Jake Burkholder
752dff3d9c Add needed includes of machine/smp.h, remove nested include in sys/smp.h
so that inlines in machine/smp.h can use variables declared in sys/smp.h.
2002-03-07 04:43:51 +00:00
Jeff Roberson
88c99cfbc8 Add a new variable mp_maxid. This is used so that per cpu datastructures may
be allocated as arrays indexed by the cpu id.  Previously the only reliable
way to know the max cpu id was through MAXCPU. mp_ncpus isn't useful here
because cpu ids may be sparsely mapped, although x86 and alpha do not do this.

Also, call cpu_mp_probe much earlier so the max cpu id is known before the VM
starts up.  This is intended to help support per cpu queues for the new
allocator, but may be useful elsewhere.

Reviewed by:	jake
Approved by:	jake
2002-03-05 10:01:46 +00:00
Matt Jacob
b96eda156f Make it compile again. 2002-03-01 23:15:45 +00:00
Matt Jacob
8f22da0d0b Fix mcpcia.c so it compiles again. 2002-03-01 23:10:19 +00:00
Andrew R. Reiter
66c862bc1b - Move a comment from being on the same line as a #ifdef to the line
following it.  This should have gone in the previous commit, but
  misviewed Bruce's patch.

Requested by: bde
2002-02-28 21:52:08 +00:00
Andrew Gallatin
ac278dcfc0 add inlines for bswap*.
smaller versions of the byteswap routines were obtained from NetBSD
2002-02-28 18:21:51 +00:00
Andrew Gallatin
030cb46918 recover from namespace collision caused by un-static'ing pci_alloc_resource()
in rev  1.187 of sys/dev/pci/pci.c
2002-02-28 18:18:41 +00:00
Andrew R. Reiter
216ae18217 - Fix panic() message and a couple style nits that snuck in from the
recent diagnostics commit (rev. 1.84).
2002-02-28 08:28:14 +00:00
Mike Silbersack
f4e18c9afd Fix a minor swap leak.
Previously, the UPAGES/KSTACK area of processes/threads would leak memory
at the time that a previously swapped process was terminated.  Lukcily, the
leak was only 12K/proc, so it was unlikely to be a major problem unless you
had an undersized swap partition.

Submitted by:	dillon
Reviewed by:	silby
MFC after:	1 week
2002-02-28 07:41:12 +00:00
John Baldwin
a854ed9893 Simple p_ucred -> td_ucred changes to start using the per-thread ucred
reference.
2002-02-27 18:32:23 +00:00
Mike Silbersack
7f3a40933b Fix a horribly suboptimal algorithm in the vm_daemon.
In order to determine what to page out, the vm_daemon checks
reference bits on all pages belonging to all processes.  Unfortunately,
the algorithm used reacted badly with shared pages; each shared page
would be checked once per process sharing it; this caused an O(N^2)
growth of tlb invalidations.  The algorithm has been changed so that
each page will be checked only 16 times.

Prior to this change, a fork/sleepbomb of 1300 processes could cause
the vm_daemon to take over 60 seconds to complete, effectively
freezing the system for that time period.  With this change
in place, the vm_daemon completes in less than a second.  Any system
with hundreds of processes sharing pages should benefit from this change.

Note that the vm_daemon is only run when the system is under extreme
memory pressure.  It is likely that many people with loaded systems saw
no symptoms of this problem until they reached the point where swapping
began.

Special thanks go to dillon, peter, and Chuck Cranor, who helped me
get up to speed with vm internals.

PR:		33542, 20393
Reviewed by:	dillon
MFC after:	1 week
2002-02-27 18:03:02 +00:00
Thomas Moestl
90ce56c287 Add the following functions/macros to support byte order conversions and
device drivers for bus system with other endinesses than the CPU (using
interfaces compatible to NetBSD):

- bwap16() and bswap32(). These have optimized implementations on some
  architectures; for those that don't, there exist generic implementations.
- macros to convert from a certain byte order to host byte order and vice
  versa, using a naming scheme like le16toh(), htole16().
  These are implemented using the bswap functions.
- stream bus space access functions, which do not perform a byte order
  conversion (while the normal access functions would if the bus endianess
  differs from the CPU endianess).

htons(), htonl(), ntohs() and ntohl() are implemented using the new
functions above for kernel usage. None of the above interfaces is currently
exported to user land.

Make use of the new functions in a few places where local implementations
of the same functionality existed.

Reviewed by:	mike, bde
Tested on alpha by:	mike
2002-02-27 17:16:18 +00:00
Julian Elischer
77c4066424 Add some DIAGNOSTIC code.
While in userland, keep the thread's ucred reference in a shadow
field so that the usual place to store it is NULL.
If DIAGNOSTIC is not set, the thread ucred is kept valid until the next
kernel entry, at which time it is checked against the process cred
and possibly corrected. Produces a BIG speedup in
kernels with INVARIANTS set. (A previous commit corrected it
for the non INVARIANTS case already)

Reviewed by:	dillon@freebsd.org
2002-02-22 23:58:22 +00:00
Poul-Henning Kamp
1cbb9c3b03 Convert p->p_runtime and PCPU(switchtime) to bintime format. 2002-02-22 13:32:01 +00:00
Andrew Gallatin
7cacd13117 recovery from new binutils part II: fix the alpha kernel so that
it handles R_ALPHA_RELATIVE relocs with addends properly.

tested by: ticso
2002-02-21 23:34:09 +00:00
Andrew Gallatin
35a86b35c1 MFi386: merge changes from i386/trap.c rev 1.212
If the credential on an incoming thread is correct, don't bother
reaquiring it. In the same vein, don't bother dropping the thread cred
when going to userland. We are guaranteed to need it when we come back,
(which we are guaranteed to do).
2002-02-19 03:13:39 +00:00
Mike Barcroft
fd8e4ebc8c o Move NTOHL() and associated macros into <sys/param.h>. These are
deprecated in favor of the POSIX-defined lowercase variants.
o Change all occurrences of NTOHL() and associated marcros in the
  source tree to use the lowercase function variants.
o Add missing license bits to sparc64's <machine/endian.h>.
  Approved by: jake
o Clean up <machine/endian.h> files.
o Remove unused __uint16_swap_uint32() from i386's <machine/endian.h>.
o Remove prototypes for non-existent bswapXX() functions.
o Include <machine/endian.h> in <arpa/inet.h> to define the
  POSIX-required ntohl() family of functions.
o Do similar things to expose the ntohl() family in libstand, <netinet/in.h>,
  and <sys/param.h>.
o Prepend underscores to the ntohl() family to help deal with
  complexities associated with having MD (asm and inline) versions, and
  having to prevent exposure of these functions in other headers that
  happen to make use of endian-specific defines.
o Create weak aliases to the canonical function name to help deal with
  third-party software forgetting to include an appropriate header.
o Remove some now unneeded pollution from <sys/types.h>.
o Add missing <arpa/inet.h> includes in userland.

Tested on:	alpha, i386
Reviewed by:	bde, jake, tmm
2002-02-18 20:35:27 +00:00
Daniel Eischen
0270d57aef Use struct __ucontext in prototypes and associated functions instead of
ucontext_t.  Forward declare struct __ucontext in <sys/signal.h> and
remove reliance on <sys/ucontext.h> being included.

While I'm here, also hide osigcontext types from userland; suggested
by bde.

Namespace pollution noticed by: Kevin Day <toasty@shell.dragondata.com>
2002-02-17 17:40:34 +00:00
Garrett Wollman
3b7a4c4b1d Resurrect one of the easiest changes from my big include files roll-up
patch from a year ago: give file flags their own type.  This does not
(yet) change the type used by system calls or library functions.
The underlying type was chosen to match what is returned by stat().
2002-02-15 22:15:39 +00:00
Robert Watson
92b98fdabe Remove WITNESS from GENERIC by default: as we grow more locks, this gets
slower, and may be impeding adoption of -CURRENT by developers.  We
recommend turning on WITNESS by default on crash boxes, and when doing
locking development.  It will probably get turned on by default for a week
or two following any major locking commits, also.

Approved by:	all and sundry (jhb, phk, ...)
2002-02-13 07:44:59 +00:00
John Baldwin
2deac418f3 Don't grab the ICU lock while reading the current pending interrupts and
current masked interrupts from the AT PIC.

Requested by:	bde
2002-02-08 18:30:36 +00:00
John Baldwin
6c2b6a945d Turn SMP back on by default in GENERIC on the Alpha. 2002-02-08 18:25:07 +00:00
John Baldwin
0730d79121 Turn interrupt thread preemption back on on the alpha.
Tested by:	mjacob
2002-02-08 18:23:46 +00:00
Peter Wemm
fe0d0493ac Bah, I managed to turn cosmetic things into real bugs. Fix shadowed
variable declarations. :-(  Definately not my day today.
2002-02-08 08:56:01 +00:00
Peter Wemm
588e970c0b Fix a long line introduced in previous commit. 2002-02-07 22:29:41 +00:00
Peter Wemm
3953037ff8 Fix long line added in previous commit. 2002-02-07 22:28:24 +00:00
Peter Wemm
6e948886d3 Patch up some long lines introduced in previous commit. 2002-02-07 22:26:51 +00:00
Peter Wemm
2850a06d42 Fix style bug introduced in previous commit. 2002-02-07 22:26:07 +00:00
Matt Jacob
943e9b67f5 You cannot take the address of a variable with the 'register' qualifier.
MFC after:	1 day
2002-02-07 22:06:23 +00:00