Commit Graph

1766 Commits

Author SHA1 Message Date
Maxime Henrion
b19d9defef Under certain circumstances, we were calling kmem_free() from
i386 cpu_thread_exit().  This resulted in a panic with WITNESS
since we need to hold Giant to call kmem_free(), and we weren't
helding it anymore in cpu_thread_exit().  We now do this from a
new MD function, cpu_thread_dtor(), called by thread_dtor().

Approved by:	re@
Suggested by:	jhb
2002-11-22 23:57:02 +00:00
Alan Cox
49115f9070 MFi386 r1.369
- Clear the PG_WRITEABLE flag in pmap_changebit() if write access is
   being removed.  Return immediately if write access is being removed and
   PG_WRITEABLE is already clear.

Note: For efficiency, pmap_changebit() should be replaced by a function
similar to sparc64's pmap_clear_write().
2002-11-18 01:36:09 +00:00
Daniel Eischen
2be05b70c9 Add getcontext, setcontext, and swapcontext as system calls.
Previously these were libc functions but were requested to
be made into system calls for atomicity and to coalesce what
might be two entrances into the kernel (signal mask setting
and floating point trap) into one.

A few style nits and comments from bde are also included.

Tested on alpha by: gallatin
2002-11-16 06:35:53 +00:00
John Baldwin
443f70e31a Add hints for ISA ATA controllers. At least one Digital AlphaPC 64 has
one such beast.

Reported by:	Rob Byrnes <rbyrnes@ozemail.com.au>
2002-11-14 14:59:27 +00:00
Alan Cox
eea85e9bb6 Move pmap_collect() out of the machine-dependent code, rename it
to reflect its new location, and add page queue and flag locking.

Notes: (1) alpha, i386, and ia64 had identical implementations
of pmap_collect() in terms of machine-independent interfaces;
(2) sparc64 doesn't require it; (3) powerpc had it as a TODO.
2002-11-13 05:39:58 +00:00
Alan Cox
6372d61e3e - Clear the page's PG_WRITEABLE flag in the i386's pmap_changebit()
if we're removing write access from the page's PTEs.
 - Export pmap_remove_all() on alpha, i386, and ia64.  (It's already
   exported on sparc64.)
2002-11-11 05:17:34 +00:00
Dag-Erling Smørgrav
97b67f3141 Print real / avail memory in megabytes rather than kilobytes. 2002-11-09 16:19:14 +00:00
John Baldwin
6f23bec893 Fix warnings when compiled with SIMOS defined. 2002-11-08 20:52:21 +00:00
John Baldwin
845ee63965 Cast pointers in mem*_io() compat macros to uintptr_t so that they can be
used as bus handles by the bus_space functions implementing these macros.
2002-11-08 20:49:43 +00:00
John Baldwin
9f12a6a606 - Update the SIMOS fp-stealing code to KSE-II and beyond.
- Wrap a variable only used in !SIMOS case in #ifndef SIMOS.
2002-11-08 15:24:32 +00:00
John Baldwin
5b5361f32c Remove #ifdef DEBUG signal debugging code brought over from NetBSD with the
original signal handling code.  It doesn't compile and it seems the rest of
the infrastructure was never brought over from NetBSD.
2002-11-08 15:16:38 +00:00
Thomas Moestl
0fca57b8b8 Move the definitions of the hw.physmem, hw.usermem and hw.availpages
sysctls to MI code; this reduces code duplication and makes all of them
available on sparc64, and the latter two on powerpc.
The semantics by the i386 and pc98 hw.availpages is slightly changed:
previously, holes between ranges of available pages would be included,
while they are excluded now. The new behaviour should be more correct
and brings i386 in line with the other architectures.

Move physmem to vm/vm_init.c, where this variable is used in MI code.
2002-11-07 23:57:17 +00:00
John Baldwin
7ea6c648f5 Turn on GEOM. It works on Alpha and we are going to need it for installs. 2002-11-07 14:36:56 +00:00
John Baldwin
ddb554f76d Wrap ()'s around an argument before casting it to a void *. If the
argument is an expression you can end up casting part of it to void *.
This resulted in bogus warnings about pointer arith using void *'s for
the ep(4) driver.
2002-11-06 22:18:26 +00:00
Juli Mallett
751d91aabd Remove what was a temporary bogus assignment of bits of siginfo_t, as it does
not look like the prerequisites to fill it in properly will be in the tree
for the upcoming release, but it's mostly done, so there is no need for these
to stay around to remind us.
2002-11-06 14:53:35 +00:00
Jeff Roberson
eff3a9fd92 - Enable the use of UMA_MD_PAGE_ALLOC on alpha.
- Define uma_small_alloc and uma_small_free using K0SEG for virtual
   addresses.

Approved by:	re
2002-11-01 03:34:51 +00:00
Andrew Gallatin
7a966f2ded Remove extranious memory barriers, and correct the placement of a few others.
This provides a 30% reduction in system time and a 6% reduction in wallclock time
for a make buildworld on my xp1000 (one 21264).

FWIW, I've been running this for nearly 2 months without problems.

Portions submitted by: ticso, jhb
Tested by: jhb (ds20 dual 21264)
2002-10-30 01:41:44 +00:00
Andrew Gallatin
206f3c68cc Make the second serial port available for general use by default.
We've been talking about this for years, but nobody has done it.
(and I don't think anybody has used this for debugging since Doug
and I were doing the initial bootstrapping..)
2002-10-30 01:34:41 +00:00
John Baldwin
4c86c028ac Use the newer "+" modifier on output contraints when a register or
memory datum is used for both input and output instead of using
matching constraints.
2002-10-25 20:22:12 +00:00
Peter Wemm
23eeeff7be Split 4.x and 5.x signal handling so that we can keep 4.x signal
handling clean and functional as 5.x evolves.  This allows some of the
nasty bandaids in the 5.x codepaths to be unwound.

Encapsulate 4.x signal handling under COMPAT_FREEBSD4 (there is an
anti-foot-shooting measure in place, 5.x folks need this for a while) and
finish encapsulating the older stuff under COMPAT_43.  Since the ancient
stuff is required on alpha (longjmp(3) passes a 'struct osigcontext *'
to the current sigreturn(2), instead of the 'ucontext_t *' that sigreturn
is supposed to take), add a compile time check to prevent foot shooting
there too.  Add uniform COMPAT_43 stubs for ia64/sparc64/powerpc.

Tested on: i386, alpha, ia64.  Compiled on sparc64 (a few days ago).
Approved by: re
2002-10-25 19:10:58 +00:00
Julian Elischer
1434d3fe6f Extract out KSE specific code from machine specific code
so that there is ony one copy of it. Fix that one copy
so that KSEs with no mailbox in a KSE program are not a cause
of page faults (this can legitmatly happen).

Submitted by:	(parts) davidxu
2002-10-24 23:09:48 +00:00
Peter Wemm
dbd72e23c5 psl.h isn't referenced anywhere that I could find on the alpha, so remove
this stub.
2002-10-21 21:08:32 +00:00
Andrew Gallatin
cde1a63db3 Add a bus_space_unmap() for the puc (and possibly other) drivers. 2002-10-21 13:48:29 +00:00
Alan Cox
f3a01463b9 - Replace two instances of vm_page_sleep_busy() with the page queue
mutex-friendly vm_page_sleep_if_busy().
 - Introduce page queue locking in pmap_page_lookup() and
   pmap_release_free_page().
 - Simplify the invalidation of the pmap's ptphint in
   pmap_release_free_page().  (MFi386 pmap.c revision 1.362.)
2002-10-20 21:40:17 +00:00
Andrew Gallatin
2ea9877c1b give alpha a bus_space_subregion() so that ahd_pci compiles and moves
LINT one file further on.  Only 999,999 or so more files to go..
2002-10-20 20:55:37 +00:00
Marcel Moolenaar
1aeb23cdfa Add two hooks to signal module load and module unload to MD code.
The primary reason for this is to allow MD code to process machine
specific attributes, segments or sections in the ELF file and
update machine specific state accordingly. An immediate use of this
is in the ia64 port where unwind information is updated to allow
debugging and tracing in/across modules. Note that this commit
does not add the functionality to the ia64 port. See revision 1.9
of ia64/ia64/elf_machdep.c.

Validated on: alpha, i386, ia64
2002-10-19 19:16:03 +00:00
Robert Watson
c7063e5913 Permits UFS ACLs to be used with the GENERIC kernel. Due to recent
ACL configuration changes, this shouldn't result in different code paths
for file systems not explicitly configured for ACLs by the system
administrator.  For UFS1, administrators must still recompile their
kernel to add support for extended attributes; for UFS2, it's sufficient
to enable ACLs using tunefs or at mount-time (tunefs preferred for
reliability reasons).  UFS2, for a variety of reasons, including
performance and reliability, is the preferred file system for use with
ACLs.

Approved by:	re
2002-10-19 16:54:15 +00:00
Peter Wemm
af3f249f3a The a.out md_coredump stuff isn't referenced anywhere anymore, and
hasn't been filled in for ages..  Nuked.
2002-10-15 00:02:50 +00:00
Mike Barcroft
4275e0d98d Remove the P1003_1B kernel option; it is no longer used. 2002-10-13 16:29:17 +00:00
Mike Barcroft
7a77412855 Add standards visibility conditionals. Change any uses of sigset_t to
struct __sigset to avoid depending on objects from <sys/signal.h>.
2002-10-13 00:31:46 +00:00
Mike Barcroft
2b7f24d210 Change iov_base's type from char *' to the standard void *'. All
uses of iov_base which assume its type is `char *' (in order to do
pointer arithmetic) have been updated to cast iov_base to `char *'.
2002-10-11 14:58:34 +00:00
Maxim Sobolev
3ad9c842d2 - Add support for IPC_64 extensions into shmctl(2), semctl(2) and msgctl(2);
- add wrappers for mmap2(2) and ftruncate64(2) system calls;
- don't spam console with printf's when VFAT_READDIR_BOTH ioctl(2) is invoked;
- add support for SOUND_MIXER_READ_STEREODEVS ioctl(2);
- make msgctl(IPC_STAT) and IPC_SET actually working by converting from
  BSD msqid_ds to Linux and vice versa;
- properly return EINVAL if semget(2) is called with nsems being negative.

Reviewed by:	marcel
Approved by:	marcel
Tested with:	LSB runtime test
2002-10-11 11:43:09 +00:00
Mike Barcroft
ddb056b7d4 Add conditionals to allow va_list to be defined in other headers. 2002-10-06 22:02:06 +00:00
Mike Barcroft
0b058e3cbd o Add conditionals to allow va_list to be defined in other headers.
o Standardize on _MACHINE_STDARG_H_ to allow multiple header includes.
o Restrict the definition of va_copy() to C99 environments.
2002-10-06 22:01:07 +00:00
David E. O'Brien
8185498ac2 CPU_MAXID should 2002-10-06 05:24:13 +00:00
Poul-Henning Kamp
3bd6561289 NB: This commit does *NOT* make GEOM the default in FreeBSD
NB: But it will enable it in all kernels not having options "NO_GEOM"

Put the GEOM related options into the intended order.

Add "options NO_GEOM" to all kernel configs apart from NOTES.

In some order of controlled fashion, the NO_GEOM options will be
removed, architecture by architecture in the coming days.

There are currently three known issues which may force people to
need the NO_GEOM option:

boot0cfg/fdisk:
        Tries to update the MBR while it is being used to control
        slices.  GEOM does not allow this as a direct operation.

SCSI floppy drives:
        Appearantly the scsi-da driver return "EBUSY" if no media
        is inserted.  This is wrong, it should return ENXIO.

PC98:
        It is unclear if GEOM correctly recognizes all variants of
        PC98 disklabels.  (Help Wanted!  I have neither docs nor HW)

These issues are all being worked.

Sponsored by:	DARPA & NAI Labs.
2002-10-05 16:35:33 +00:00
Mike Barcroft
e61d3b10d7 Fix namespace issues by using visibility conditionals from
<sys/cdefs.h>.
2002-10-05 05:47:56 +00:00
Mike Barcroft
085f8416a2 style(9) <machine/setjmp.h> headers so they look mostly the same. 2002-10-04 22:10:06 +00:00
Sam Leffler
14c17bd293 New bus_dma interfaces for use by crypto device drivers:
o bus_dmamap_load_mbuf
o bus_dmamap_load_uio

Test on i386.  Known to compile on alpha and sparc64, but not tested.
Otherwise untried.
2002-10-04 20:40:39 +00:00
Giorgos Keramidas
7528dee5eb Add a couple of missing ':' in panic msgs.
Suggested by:	gallatin
2002-10-04 15:58:03 +00:00
Giorgos Keramidas
48eaa43e79 Fix typo in panic msg.
Reviewed by:	gallatin
2002-10-04 15:56:02 +00:00
Andrew Gallatin
5f570c5179 MFi386: fork1 apparently takes 4 args now
Forgotten by: scottl
2002-10-02 14:30:14 +00:00
Scott Long
316ec49abd Some kernel threads try to do significant work, and the default KSTACK_PAGES
doesn't give them enough stack to do much before blowing away the pcb.
This adds MI and MD code to allow the allocation of an alternate kstack
who's size can be speficied when calling kthread_create.  Passing the
value 0 prevents the alternate kstack from being created.  Note that the
ia64 MD code is missing for now, and PowerPC was only partially written
due to the pmap.c being incomplete there.
Though this patch does not modify anything to make use of the alternate
kstack, acpi and usb are good candidates.

Reviewed by:	jake, peter, jhb
2002-10-02 07:44:29 +00:00
Poul-Henning Kamp
fcd054483a Fix the same misinitialization of pmap_prefault_pageorder as on i386.
Suggeste by:	jake
2002-10-01 20:56:29 +00:00
Juli Mallett
1d9c56964d Back our kernel support for reliable signal queues.
Requested by:	rwatson, phk, and many others
2002-10-01 17:15:53 +00:00
Juli Mallett
1226f694e6 First half of implementation of ksiginfo, signal queues, and such. This
gets signals operating based on a TailQ, and is good enough to run X11,
GNOME, and do job control.  There are some intricate parts which could be
more refined to match the sigset_t versions, but those require further
evaluation of directions in which our signal system can expand and contract
to fit our needs.

After this has been in the tree for a while, I will make in kernel API
changes, most notably to trapsignal(9) and sendsig(9), to use ksiginfo
more robustly, such that we can actually pass information with our
(queued) signals to the userland.  That will also result in using a
struct ksiginfo pointer, rather than a signal number, in a lot of
kern_sig.c, to refer to an individual pending signal queue member, but
right now there is no defined behaviour for such.

CODAFS is unfinished in this regard because the logic is unclear in
some places.

Sponsored by:	New Gold Technology
Reviewed by:	bde, tjr, jake [an older version, logic similar]
2002-09-30 20:20:22 +00:00
Alfred Perlstein
4f492bfab5 use __packed. 2002-09-23 18:54:32 +00:00
Julian Elischer
d10fbbff27 Remove a bunch of stuff that is surplus now 2002-09-23 08:04:30 +00:00
Peter Wemm
c692fbe091 At great personal risk, add a __packed and __aligned(x) define that
expand to __attribute__((packed)) and __attribute__((aligned(x)))
respectively.  Replace the handful of gcc-ism's that use
__attribute__((aligned(16))) etc around the kernel with __aligned(16).

There are over 400 __attribute__((packed)) to deal with, that can come
later.  I just want to use __packed in new code rather than add more
gcc-ism's.
2002-09-23 05:55:10 +00:00
Mike Barcroft
c0d4804d67 Be careful not to define GCC-specific optimizations in the non-GCC
case.
2002-09-23 04:32:17 +00:00