Commit Graph

8679 Commits

Author SHA1 Message Date
Jens Schweikhardt
21dc7d4f57 Fix typo in the BSD copyright: s/withough/without/
Spotted and suggested by:	des
MFC after:	3 weeks
2002-06-02 20:05:59 +00:00
Alfred Perlstein
50225e2f48 Silence preprocessor warning, No need to use CONCAT with "," and "word". 2002-06-01 20:22:33 +00:00
Bruce Evans
136956ed12 Fixed the return value of fpsetmask(). The API requires inversion of the
mask on both input and output to fpsetmask(), but this was only done for
input, so fpsetmask() returned the complement of the old mask (ANDed with
the mask bitfield).

PR:		38170
MFC after:	4 weeks
2002-06-01 17:39:46 +00:00
Bruce Evans
511dab6218 Fixed style bugs in rev.1.9. 2002-06-01 17:27:16 +00:00
Warner Losh
8ce1ab3a24 Use a common function to map the bogus intlines.
Don't require pin be non-zero before we map bogus intlines, always do it.
This fixes a number of problems on HP Omnibook computers.

Tested/Reviewed by: Brooks Davis
2002-06-01 05:14:11 +00:00
Doug Rabson
99bd783419 Move the definition of ElfN_Hashelt to common headers. The only platform
which has a different definition for this is alpha.
2002-05-30 08:32:18 +00:00
David E. O'Brien
69d18565e0 Do not refer to the Intel PRO/1000 by its internal name.
Requested by:	pdeuskar
2002-05-29 18:42:26 +00:00
Brooks Davis
26722a1909 Restore the irq=0 => irq=255 hack to pci_cfgintr_search(). Just having
it in pci_cfgregread() wasn't sufficent on at least the HP Omnibook 500.

Reviewed by:	imp
2002-05-29 16:16:16 +00:00
Doug Rabson
396a429cfd Add declarations of suword32 and suword64. Add implementations of one or
the other (or both) to all the platforms. Similar for fuword32 and
fuword64.
2002-05-26 16:03:13 +00:00
Jake Burkholder
d2ac231616 Make the run queue parameters machine dependent. Optimize 64 bit
architectures by using a 64 bit word for the bit array which keeps
track of non-empty queues.

Reviewed by:	peter
2002-05-25 01:12:23 +00:00
Peter Wemm
3fec4bb98a Fix warnings; deprecated use of label at end of compound statement 2002-05-24 05:54:40 +00:00
John Baldwin
6b8c698908 Rename pause() to ia32_pause() so it doesn't conflict with the pause()
function defined in <unistd.h>.  I didn't #ifdef _KERNEL it because the
mutex implementation in libpthread will probably need this.
2002-05-22 20:32:39 +00:00
David E. O'Brien
540e5c2eaf Restore us back to the rev 1.324 level of having an Intel gigE driver. 2002-05-22 19:00:48 +00:00
John Baldwin
07508f90b6 Debug registers aren't selectors, so use saner names for the variables in
the inline functions for reading and writing the debug registers.
2002-05-22 13:29:18 +00:00
John Baldwin
2be69f326a - Sort the pause() inline into the appropriate location.
- Add many missing prototypes to the non-GCC section.
2002-05-22 13:27:05 +00:00
John Baldwin
0228ea4e0b Rename cpu_pause() to pause(). Originally I was going to make this an
MI API with empty cpu_pause() functions on other arch's, but this
functionality is definitely unique to IA-32, so I decided to leave it
as i386-only and wrap it in #ifdef's.  I should have dropped the cpu_
prefix when I made that decision.

Requested by:	bde
2002-05-22 13:19:22 +00:00
Robert Watson
ddbbc9628d Permit alternative break sequence to break to debugger in GENERIC. Breakage
of serial break on -CURRENT seems rampant for some reason, and I like
being able to get into ddb.

Reviewed by:	peter
2002-05-21 23:35:51 +00:00
John Baldwin
bb0d293f15 Add an inline function cpu_pause() for the IA32 'pause' instruction. 2002-05-21 20:21:53 +00:00
Yoshihiro Takahashi
9b96eed728 Remove unneeded ## for GCC 3.1 2002-05-21 12:50:20 +00:00
Robert Watson
6be2f8829a Off-by-128 error in the cuam* device node numbers. 2002-05-20 05:12:56 +00:00
Robert Watson
12f2edc7d5 Bump the rc driver a little bit closer to the 21st century: use
make_dev() to create device nodes for each of the serial port channels
(ttym%d and cuam%d respectively, as borrowed from MAKEDEV).  This allows
the rc driver to work in 5.0.  I've tested it with only one card, but
will try sticking in a second card tomorrow and see what happens.
2002-05-20 05:04:41 +00:00
Marcel Moolenaar
1b5aeb4347 o Fix race condition caused by doing ptrace() for permission
checking, followed by a lookup of the process. Do not call
   ptrace() for permission checking, but do it inline.
   Spotted by: rwatson

o  While here, copy-in arguments before we lock. This fixes
   a possible permanent lock.

Reviewed by: rwatson
2002-05-19 19:35:36 +00:00
Peter Wemm
b2604e1cf1 Make this compile with gcc-3.1, which objects to the multi-line string. 2002-05-19 06:42:29 +00:00
Marcel Moolenaar
c444f61706 Hook up the new linux_ptrace implementation.
PR: 33299
Submitted by: Alexander N. Kabaev <ak03@gte.com>
2002-05-19 01:27:14 +00:00
Marcel Moolenaar
9ed93e32bc Regen (linux_ptrace)
PR: 33299
2002-05-19 01:23:33 +00:00
Marcel Moolenaar
6b5a528e88 Sparkling new implementation of linux_ptrace. Slight tweaking by
yours truly.

PR: 33299
Submitted by: Alexander N. Kabaev <ak03@gte.com>
2002-05-19 01:21:55 +00:00
Poul-Henning Kamp
6380601f64 Move MI stuff out of MD param.h files.
It can all still be overridden in the MD files should need suddenly arise.
2002-05-14 20:35:29 +00:00
Poul-Henning Kamp
22bd43ccda Move a few ancient minor-number definitions for tapedrives to the
only driver which uses them.  Remove the rest.
2002-05-14 06:57:02 +00:00
Bruce Evans
74f168bf7a Fixed a semantic error. va_arg(ap, u_short) is nonsense except on i386's
with 16-bit ints, since u_short is promoted when it is passed to a
varargs function.  gcc now warns about this.  We always pass small
integers (this is well obuscated), so there are no conversion problems.

Fixed a related style bug (bogus cast).
2002-05-13 14:34:47 +00:00
Bruce Evans
f5d3fceede Fixed a syntax error (a label not followed by a statement). 2002-05-13 11:53:40 +00:00
Jake Burkholder
26a9c7b7e1 These were repo-copied to dump_machdep.c. 2002-05-13 02:52:35 +00:00
David E. O'Brien
10cd195e63 I reorganized a little bit too much in the backwards case. 2002-05-10 03:24:06 +00:00
David E. O'Brien
fc336fdfbb Gcc 3.1 varargs support. 2002-05-10 02:02:54 +00:00
Chris D. Faulhaber
eab0c369f1 s/sysctl -w/sysctl/ 2002-05-06 00:45:27 +00:00
Bruce Evans
f318190a01 Fixed checking for VM86 mode in doreti which I broke in rev.1.30. Only
the case of VM86 calls from the kernel was broken, so this bug was not
a security hole.

PR:		36710
Submitted by:	David Xu <davidx@viasoft.com.cn> (version for RELENG_4)
MFC after:	3 days
2002-05-05 03:19:48 +00:00
Bill Fenner
7bf744074d Restore the ability interrupt dumps on i386, based on
the old kern_shutdown.c .  Other archs might be able to
use similar code but I don't have anything to test on.
2002-05-04 17:45:48 +00:00
Juli Mallett
ea0b7a7699 Typo fix: detects -> detect.
Reviewed by:	phk
2002-05-03 17:59:25 +00:00
Peter Wemm
7bdbf808c3 Retire makeLINT.pl 2002-05-02 22:20:40 +00:00
Peter Wemm
59d72e9d82 Makefile uses genwakecode.sh now. 2002-05-02 22:17:35 +00:00
David E. O'Brien
1de6d67791 Revert rev 1.1018. rp(4) and dgb(4) are deemed MI, while the rest of the
drivers for simular hardware are i386-specific.  That is why I did not
find the information here.
2002-05-02 19:42:38 +00:00
Dag-Erling Smørgrav
cff135d87c Join the pissing contest: generate LINT with a single sed(1) command.
Smaller script, smaller (though equivalent) output.
2002-05-02 16:34:47 +00:00
Jun Kuriyama
23dc40e1dd Use shell script version (using awk and sed) of makeLINT.pl. 2002-05-02 06:10:09 +00:00
David E. O'Brien
b20b5a8b09 Add some NOTES on the Comtrol Rocketport and the Digiboard drivers. 2002-05-01 23:03:31 +00:00
Peter Wemm
47a45d1b17 Try using genwakecode.sh instead of the perl version. 2002-05-01 21:54:07 +00:00
Peter Wemm
9b4e33b6ba Add a shell script to do what genwakecode.pl does.
Obtained from:	ade
2002-05-01 21:52:34 +00:00
Poul-Henning Kamp
2266fe776e Don't export timecounter structures under debug. with sysctl, they
contain no truly interesting data anymore.
2002-04-30 19:34:31 +00:00
Peter Wemm
db17c6fc07 Tidy up some loose ends.
i386/ia64/alpha - catch up to sparc64/ppc:
- replace pmap_kernel() with refs to kernel_pmap
- change kernel_pmap pointer to (&kernel_pmap_store)
  (this is a speedup since ld can set these at compile/link time)
all platforms (as suggested by jake):
- gc unused pmap_reference
- gc unused pmap_destroy
- gc unused struct pmap.pm_count
(we never used pm_count - we track address space sharing at the vmspace)
2002-04-29 07:43:16 +00:00
Alan Cox
c01945726b For what it's worth, fix the compilation of an I386_CPU-only kernel
now that certain warnings are fatal.
2002-04-27 18:13:35 +00:00
Alan Cox
ce6612b6b6 Don't call vm_map_growstack() from trapwrite() as vm_fault() now performs
this automatically.
2002-04-27 17:07:15 +00:00
Scott Long
fe3cb0e1ec Add a CAM interface to the aac driver. This is useful in case you should
ever connect a SCSI Cdrom/Tape/Jukebox/Scanner/Printer/kitty-litter-scooper
to your high-end RAID controller.  The interface to the arrays is still
via the block interface; this merely provides a way to circumvent the
RAID functionality and access the SCSI buses directly.  Note that for
somewhat obvious reasons, hard drives are not exposed to the da driver
through this interface, though you can still talk to them via the pass
driver.  Be the first on your block to low-level format unsuspecting
drives that are part of an array!

To enable this, add the 'aacp' device to your kernel config.

MFC after:	3 days
2002-04-27 01:31:17 +00:00
Poul-Henning Kamp
7e2d76ff05 Remove the tc_update() function. Any frequency change to the
timecounter will be used starting at the next second, which is
good enough for sysctl purposes.  If better adjustment is needed
the NTP PLL should be used.
2002-04-26 10:06:26 +00:00
Marcel Moolenaar
d297ad160e Don't use the symbol name to lookup the symbol value when we can use
the symbol index defined by the relocation. The elf_lookup() support
function is to be used by elf_reloc() when symbol lookups need to be
done. The elf_lookup() function operates on the symbol index and
will do a symbol name based lookup when such is required, otherwise
it uses the symbol index directly. This solves the problem seen on
ia64 where the symbol hash table does not contain local symbols and
a symbol name based lookup would fail for those symbols.

Don't pass the symbol name to elf_reloc(), as it isn't used any more.
2002-04-25 01:22:16 +00:00
Warner Losh
d5ccecfad7 o Work around bugs in the powerof2 macro: It thinks that 0 is a power of
2, but that's not the case.  This fixes the case where there were slots
  in the PIR table that had no bits set, but we assumed they did and used
  strange results as a result.
o Map invalid INTLINE registers to 255 in pci_cfgreg.c.  This should allow
  us to remove the bogus checks in MI code for non-255 values.

I put these changes out for review a while ago, but no one responded
to them, so into current they go.

This should help us work better on machines that don't route
interrupts in the traditional way.

MFC After: 4286 millifortnights
2002-04-24 15:30:11 +00:00
Warner Losh
e5d7e9c76c Fix a PNPID in a comment
Submitted by: David Xu
2002-04-24 15:22:53 +00:00
Poul-Henning Kamp
3c9f58204e Don't free(9) a pointer which has been modified.
Chapeau de pointe:	mux
2002-04-23 18:52:39 +00:00
Mark Murray
db8f2e326c Stylify (mainly line up macro EOL-continuation \'s), and add a dummy
alternative for lint.
2002-04-21 10:49:00 +00:00
Alfred Perlstein
74d618ca43 Clean up:
Comment run_filter() to explain what it does.

Remove chatty comments.

void busdma_swi() { }  -> void busdma_swi(void) { }
2002-04-19 22:58:09 +00:00
Robert Watson
91e007dc70 Since WITNESS doesn't just do mutexes, remove "mutex" from the WITNESS
comment in GENERIC config files of appropriate platforms.  For whatever
reason, powerpc didn't use WITNESS in GENERIC.
2002-04-18 03:44:44 +00:00
Alan Cox
6139043b1f o Call vm_map_growstack() from vm_fault() if vm_map_lookup() has failed
due to conditions that suggest the possible need for stack growth.
   This has two beneficial effects: (1) we can
   now remove calls to vm_map_growstack() from the MD trap handlers and (2)
   simple page faults are faster because we no longer unnecessarily perform
   vm_map_growstack() on every page fault.
 o Remove vm_map_growstack() from the i386's trap_pfault().
 o Remove the acquisition and release of Giant from i386's trap_pfault().
   (vm_fault() still acquires it.)
2002-04-18 03:28:27 +00:00
Tor Egge
de8218bb7b Fix typo in adjusted panic message.
Submitted by:	cokane
2002-04-17 22:41:58 +00:00
Tor Egge
50c15af4da Update io_apic_ints array properly when revoking an irq mapping.
Adjust panic message.

Submitted by:	David Xu <bsddiy@yahoo.com>
2002-04-17 18:27:10 +00:00
Maxime Henrion
d786139c76 Rework the kernel environment subsystem. We now convert the static
environment needed at boot time to a dynamic subsystem when VM is
up.  The dynamic kernel environment is protected by an sx lock.

This adds some new functions to manipulate the kernel environment :
freeenv(), setenv(), unsetenv() and testenv().  freeenv() has to be
called after every getenv() when you have finished using the string.
testenv() only tests if an environment variable is present, and
doesn't require a freeenv() call. setenv() and unsetenv() are self
explanatory.

The kenv(2) syscall exports these new functionalities to userland,
mainly for kenv(1).

Reviewed by:	peter
2002-04-17 13:06:36 +00:00
Peter Wemm
1a87a0da66 Pass vm_page_t instead of physical addresses to pmap_zero_page[_area]()
and pmap_copy_page().  This gets rid of a couple more physical addresses
in upper layers, with the eventual aim of supporting PAE and dealing with
the physical addressing mostly within pmap.  (We will need either 64 bit
physical addresses or page indexes, possibly both depending on the
circumstances.  Leaving this to pmap itself gives more flexibilitly.)

Reviewed by:	jake
Tested on:	i386, ia64 and (I believe) sparc64. (my alpha was hosed)
2002-04-15 16:00:03 +00:00
David Malone
7376ec0dd7 Make the MTRR code a bit more defensive - this should help people
trying to run X on some Athlon systems where the BIOS does odd things
(mines an ASUS A7A266, but it seems to also help on other systems).

Here's a description of the problem and my fix:

	The problem with the old MTRR code is that it only expects
	to find documented values in the bytes of MTRR registers.
	To convert the MTRR byte into a FreeBSD "Memory Range Type"
	(mrt) it uses the byte value and looks it up in an array.
	If the value is not in range then the mrt value ends up
	containing random junk.

	This isn't an immediate problem. The mrt value is only used
	later when rewriting the MTRR registers. When we finally
	go to write a value back again, the function i686_mtrrtype()
	searches for the junk value and returns -1 when it fails
	to find it. This is converted to a byte (0xff) and written
	back to the register, causing a GPF as 0xff is an illegal
	value for a MTRR byte.

	To work around this problem I've added a new mrt flag
	MDF_UNKNOWN.  We set this when we read a MTRR byte which
	we do not understand.  If we try to convert a MDF_UNKNOWN
	back into a MTRR value, then the new function, i686_mrt2mtrr,
	just returns the old value of the MTRR byte. This leaves
	the memory range type unchanged.

I'd like to merge this before the 4.6 code freeze, so if people
can test this with XFree 4 that would be very useful.

PR:		28418, 25958
Tested by:	jkh, Christopher Masto <chris@netmonger.net>
MFC after:	2 weeks
2002-04-14 20:13:08 +00:00
David Malone
a983fdfe4c Move do_cpuid into the correct place in this file and make
the indentation more like the other multi-line assembley in
this file.

Someone who understands gcc constraints could update the
constraints for do_cpuid.
2002-04-10 21:18:46 +00:00
Alan Cox
eac84263c4 o In osigreturn(), restore all of the registers in one place.
o Recent changes to osigreturn() and sigreturn() have made them MPSAFE.  Add
   a comment to this effect.

Submitted by:	bde (bullet #1)
Reviewed by:	jhb (bullet #2)
2002-04-10 20:08:07 +00:00
Mike Barcroft
49285705cc Remove the hack for segsz_t from <sys/types.h>; use the normal
_BSD_FOO_T_ method for defining segsz_t.
2002-04-10 15:58:13 +00:00
Mike Barcroft
7f0f1cfd57 Add manifest constants: _LITTLE_ENDIAN, _BIG_ENDIAN, _PDP_ENDIAN, and
_BYTE_ORDER.  These are far more useful than their non-underscored
equivalents as these can be used in restricted namespace environments.
Mark the non-underscored variants as deprecated.
2002-04-10 14:39:14 +00:00
John Baldwin
7f5092f330 Round 2 of munging the MI/MD split in NOTES. Put almost all the device
drivers with MI portions into the MI notes.  Device drivers such as busses
like the isa, eisa, and pci devices are now in the MD NOTES section even
though they have some MI code.  This will ensure that only the proper bits
of device drivers will be included due to the optional bits dependent on
the busses in sys/conf/files.  This commit also takes the stance that since
hints are ignored in NOTES anyways, it is ok to include hints for a bus
that may not be present.

Advice from:    bde
2002-04-09 18:26:58 +00:00
Poul-Henning Kamp
2ce7d7a033 GC various bits and pieces of USERCONFIG from all over the place. 2002-04-09 11:18:46 +00:00
Poul-Henning Kamp
1aec374128 machine/uc_device.h was only here for USERCONFIG and kget(1).
We have neither anymore.
2002-04-09 11:04:42 +00:00
Bruce Evans
32893f634b Removed ispc98 sysctl completely. Applications should understand that
ispc98 isn't set if its sysctl doesn't exist.  At least make(1) already
understands this.

Approved by:	nyan
2002-04-08 10:34:57 +00:00
Poul-Henning Kamp
67ec58a802 GC the "dumplo" variable, which is no longer used.
A lot of sys/*/*/machdep.c seems not to be.
2002-04-07 21:01:37 +00:00
Yoshihiro Takahashi
181593adec Move ICU_* defines into icu.h. 2002-04-06 08:25:05 +00:00
Yoshihiro Takahashi
78ee686247 Remove pc98 code. 2002-04-06 08:22:33 +00:00
Eric Melville
1b20ff34a3 Spell "separate" correctly. 2002-04-05 00:04:56 +00:00
Matthew Dillon
80f5c8bf42 Embed a struct vmmeter in the per-cpu structure and add a macro,
PCPU_LAZY_INC() which increments elements in it for cases where we
can afford the occassional inaccuracy.  Use of per-cpu stats counters
avoids significant cache stalls in various critical paths that would
otherwise severely limit our cpu scaleability.

Adjust all sysctl's accessing cnt.* elements to now use a procedure
which aggregates the requested field for all cpus and for the global
vmmeter.

The global vmmeter is retained, since some stats counters, like v_free_min,
cannot be made per-cpu.  Also, this allows us to convert counters from
the global vmmeter to the per-cpu vmmeter in a piecemeal fashion, so
have at it!
2002-04-04 21:38:47 +00:00
John Baldwin
6008862bc2 Change callers of mtx_init() to pass in an appropriate lock type name. In
most cases NULL is passed, but in some cases such as network driver locks
(which use the MTX_NETWORK_LOCK macro) and UMA zone locks, a name is used.

Tested on:	i386, alpha, sparc64
2002-04-04 21:03:38 +00:00
Brian Somers
920987e3c1 Back out the previous commit.
In the i386 case, options BOOTP requires options NFS_ROOT as well as
options NFSCLIENT.  With *both* the NFS options, a bootpc_init()
prototype is brought in by nfsclient/nfsdiskless.h.

In the ia64 case, it just doesn't work and my change just pushes it
further away from working.

Suggested to be wrong by:	bde
2002-04-04 17:58:21 +00:00
Bruce Evans
79065dba2a Moved signal handling and rescheduling from userret() to ast() so that
they aren't in the usual path of execution for syscalls and traps.
The main complication for this is that we have to set flags to control
ast() everywhere that changes the signal mask.

Avoid locking in userret() in most of the remaining cases.

Submitted by:	luoqi (first part only, long ago, reorganized by me)
Reminded by:	dillon
2002-04-04 17:49:48 +00:00
Brian Somers
55d884db38 Pre-declare bootpc_init() so that options BOOTP doesn't break the
build in ia64 and i386 due to -Werror.
2002-04-04 14:27:57 +00:00
John Baldwin
dd267672cd First round at trying to split up NOTES into MI and MD portions.
Unfortunately, this level doesn't really provide enough granularity.  We
probably need several MI NOTES type files for things that are shared by
several architectures but not by all.  For example, the PCI options could
live in a NOTES.pci.

This also updates the Makefile for i386 to generate LINT.  The only changes
in the generated LINT are the order of various options.

Suggestions for improvement welcome.
2002-04-03 18:09:17 +00:00
Ruslan Ermilov
12c79eb288 Dike out a highly insecure UCONSOLE option.
TIOCCONS must be able to VOP_ACCESS() /dev/console to succeed.

Obtained from:	OpenBSD
2002-04-03 10:56:59 +00:00
Marcel Moolenaar
5cb87b0c59 Make the kernel dump header endianness invariant by always dumping
in dump byte order (=network byte order). Swap blocksize and dumptime
to avoid extraneous padding on 64-bit architectures. Use CTASSERT
instead of runtime checks to make sure the header is 512 bytes large.
Various style(9) fixes.

Reviewed by: phk, bde, mike
2002-04-03 07:24:12 +00:00
John Baldwin
c53c013bae - Move the MI mutexes sched_lock and Giant from being declared in the
various machdep.c's to being declared in kern_mutex.c.
- Add a new function mutex_init() used to perform early initialization
  needed for mutexes such as setting up thread0's contested lock list
  and initializing MI mutexes.  Change the various MD startup routines
  to call this function instead of duplicating all the code themselves.

Tested on:	alpha, i386
2002-04-02 22:19:16 +00:00
Poul-Henning Kamp
408ab1b875 Retire the bogus ioctl DIOCGPART in toto.
Once again we can notice that badly thought out hacks ferment and infect
far more code than initially expected.

Sponsored by:	DARPA and NAI Labs.
2002-04-02 11:52:13 +00:00
Matthew Dillon
182da8209d Stage-2 commit of the critical*() code. This re-inlines cpu_critical_enter()
and cpu_critical_exit() and moves associated critical prototypes into their
own header file, <arch>/<arch>/critical.h, which is only included by the
three MI source files that need it.

Backout and re-apply improperly comitted syntactical cleanups made to files
that were still under active development.  Backout improperly comitted program
structure changes that moved localized declarations to the top of two
procedures.  Partially re-apply one of the program structure changes to
move 'mask' into an intermediate block rather then in three separate
sub-blocks to make the code more readable.  Re-integrate bug fixes that Jake
made to the sparc64 code.

Note: In general, developers should not gratuitously move declarations out
of sub-blocks.  They are where they are for reasons of structure, grouping,
readability, compiler-localizability, and to avoid developer-introduced bugs
similar to several found in recent years in the VFS and VM code.

Reviewed by:	jake
2002-04-01 23:51:23 +00:00
John Baldwin
44731cab3b Change the suser() API to take advantage of td_ucred as well as do a
general cleanup of the API.  The entire API now consists of two functions
similar to the pre-KSE API.  The suser() function takes a thread pointer
as its only argument.  The td_ucred member of this thread must be valid
so the only valid thread pointers are curthread and a few kernel threads
such as thread0.  The suser_cred() function takes a pointer to a struct
ucred as its first argument and an integer flag as its second argument.
The flag is currently only used for the PRISON_ROOT flag.

Discussed on:	smp@
2002-04-01 21:31:13 +00:00
John Baldwin
0f8870a2b9 Remove references to KTR_EXTEND.
Pointy-hat to:	jake
2002-04-01 19:25:22 +00:00
Poul-Henning Kamp
81661c94b6 Here follows the new kernel dumping infrastructure.
Caveats:

The new savecore program is not complete in the sense that it emulates
enough of the old savecores features to do the job, but implements none
of the options yet.

I would appreciate if a userland hacker could help me out getting savecore
to do what we want it to do from a users point of view, compression,
email-notification, space reservation etc etc.  (send me email if
you are interested).

Currently, savecore will scan all devices marked as "swap" or "dump" in
/etc/fstab _or_ any devices specified on the command-line.

All architectures but i386 lack an implementation of dumpsys(), but
looking at the i386 version it should be trivial for anybody familiar
with the platform(s) to provide this function.

Documentation is quite sparse at this time, more to come.

Details:

ATA and SCSI drivers should work as the dump formatting code has been
removed.  The IDA, TWE and AAC have not yet been converted.

Dumpon now opens the device and uses ioctl(DIOCGKERNELDUMP) to set
the device as dumpdev.  To implement the "off" argument, /dev/null
is used as the device.

Savecore will fail if handed any options since they are not (yet)
implemented.  All devices marked "dump" or "swap" in /etc/fstab
will be scanned and dumps found will be saved to diskfiles
named from the MD5 hash of the header record.  The header record
is dumped in readable format in the .info file.  The kernel
is not saved.  Only complete dumps will be saved.

All maintainer rights for this code are disclaimed: feel free to
improve and extend.

Sponsored by:   DARPA, NAI Labs
2002-03-31 22:37:00 +00:00
Poul-Henning Kamp
38fd6d0169 A couple of bits survived Dans nukage of CV_DEBUG in favour of INVARIANTS,
take them out with tacticals.
2002-03-31 07:23:31 +00:00
Poul-Henning Kamp
8d19a26558 Centralize the "bootdev" and "dumpdev" variables. They are still pretty
bogus all things considered, but at least now they don't camouflage as
being MD variables.
2002-03-31 07:15:28 +00:00
Alan Cox
ca19a2d68c Implement i386's (o)sigreturn() like the alpha's: Use copyin() to read
the osigcontext or ucontext_t rather than useracc() followed by direct user-
space memory accesses.  This reduces (o)sigreturn()'s execution time by 5-
50%.

Submitted by:	bde
2002-03-31 01:13:21 +00:00
Jake Burkholder
d0ce9a7e07 Remove abuse of intr_disable/restore in MI code by moving the loop in ast()
back into the calling MD code.  The MD code must ensure no races between
checking the astpening flag and returning to usermode.

Submitted by:	peter (ia64 bits)
Tested on:	alpha (peter, jeff), i386, ia64 (peter), sparc64
2002-03-29 16:35:26 +00:00
John Baldwin
e6c838590e GC #if 0'd assembly mutex micro operations. If someone wants to bring
these back later then can get them from the attic.  Also, GC, some stale
macros to acquire and release sleep mutexes in assembly.
2002-03-28 15:14:23 +00:00
Yoshihiro Takahashi
3be63aef6f Remove unneeded pc98 hack. 2002-03-28 12:13:57 +00:00
David E. O'Brien
ae7c70d595 style(9)
Approved by:	jake
2002-03-28 02:54:44 +00:00
Jeff Roberson
f22a4b62f5 Add a new mtx_init option "MTX_DUPOK" which allows duplicate acquires of locks
with this flag.  Remove the dup_list and dup_ok code from subr_witness.  Now
we just check for the flag instead of doing string compares.

Also, switch the process lock, process group lock, and uma per cpu locks over
to this interface.  The original mechanism did not work well for uma because
per cpu lock names are unique to each zone.

Approved by:	jhb
2002-03-27 09:23:41 +00:00
Matthew Dillon
93e70a5f37 Tab-out the backslashes in icu_vector.s to make it more readable and to
match it up with apic_vector.s.
2002-03-27 05:43:11 +00:00
Matthew Dillon
d74ac6819b Compromise for critical*()/cpu_critical*() recommit. Cleanup the interrupt
disablement assumptions in kern_fork.c by adding another API call,
cpu_critical_fork_exit().  Cleanup the td_savecrit field by moving it
from MI to MD.  Temporarily move cpu_critical*() from <arch>/include/cpufunc.h
to <arch>/<arch>/critical.c (stage-2 will clean this up).

Implement interrupt deferral for i386 that allows interrupts to remain
enabled inside critical sections.  This also fixes an IPI interlock bug,
and requires uses of icu_lock to be enclosed in a true interrupt disablement.

This is the stage-1 commit.  Stage-2 will occur after stage-1 has stabilized,
and will move cpu_critical*() into its own header file(s) + other things.
This commit may break non-i386 architectures in trivial ways.  This should
be temporary.

Reviewed by:	core
Approved by:	core
2002-03-27 05:39:23 +00:00
Poul-Henning Kamp
106d501706 Uncomment GEOM in LINT 2002-03-26 19:39:32 +00:00
Hellmuth Michaelis
3c1d185c2a Add support for Q.931 subaddresses.
Submitted by: Steven Looman <fsteevie@wish.net>
2002-03-26 15:13:54 +00:00
Nicolas Souchu
ea4122d2bf Fix bktr and pcf compilation with LINT 2002-03-25 21:22:35 +00:00
David E. O'Brien
c543d983fa Guard against redefining __gnuc_va_list. 2002-03-24 11:25:46 +00:00
Bruce Evans
bda2a3af25 Fixed some style bugs in the removal of __P(()). Continuation lines
were not outdented to preserve non-KNF lining up of code with parentheses.
Switch to KNF formatting.
2002-03-24 04:09:05 +00:00
Will Andrews
05f920205e Minor changes:
[1] Support the Sony VAIO Jogdial in moused(8).
 [2] Modify spic(4) to support additional Sony VAIO models.

Submitted by:	[1] Juriy Goloveshkin <j@gu.ru>,
		[2] Akira Funahashi <funa@funa.org>
Tested by:	cjh, jim, Jerry A! <jerry@thehutt.org>
Approved by:	nsayer
MFC after:	2 weeks
2002-03-24 03:07:07 +00:00
Nicolas Souchu
b708809fa5 Forgot viapm in the NOTES. Fixed. 2002-03-23 18:39:54 +00:00
Bruce Evans
ea1499bf8f Fixed some style bugs in the removal of __P(()). The main ones were
not removing tabs before "__P((", and not outdenting continuation lines
to preserve non-KNF lining up of code with parentheses.  Switch to KNF
formatting and/or rewrap the whole prototype in some cases.
2002-03-23 16:01:49 +00:00
Nicolas Souchu
c17d43407f Major rework of the iicbus/smbus framework:
- VIA chipset SMBus controllers added
	- alpm driver updated
	- Support for dynamic modules added
	- bktr FreeBSD smbus updated but not tested
	- cleanup
2002-03-23 15:49:15 +00:00
Bruce Evans
809dbbc99b Fixed some style bugs in the removal of __P(()). The main ones were
not removing tabs before "__P((", and not outdenting continuation lines
to preserve non-KNF lining up of code with parentheses.  Switch to KNF
formatting and/or rewrap the whole prototype in some cases.
2002-03-23 15:09:35 +00:00
Bruce Evans
fa9c948c1c Fixed some style bugs in the removal of __P(()). The main ones were
not removing tabs before "__P((", and not outdenting continuation lines
to preserve non-KNF lining up of code with parentheses.  Switch to KNF
formatting and/or rewrap the whole prototype in some cases.
2002-03-23 14:27:06 +00:00
Takanori Watanabe
391b5c4a91 Add bios area range check (lower side). 2002-03-23 06:44:04 +00:00
David E. O'Brien
439a4003ab ASM versions of __FBSDID. 2002-03-23 02:01:27 +00:00
Alan Cox
8fcaddd792 o Use the MI vm_map_growstack() instead of grow_stack() in trap_pfault()
and trapwrite().
 o On i386/pc98, remove the (now) unused grow_stack().
2002-03-21 19:27:15 +00:00
Warner Losh
ba74981e71 Fix abuses of cpu_critical_{enter,exit} by converting to
intr_{disable,restore} as well as providing an implemenation of
intr_{disable,restore}.

Reviewed by: jake, rwatson, jhb
2002-03-21 06:19:08 +00:00
Jeff Roberson
46d0abf370 Remove references to vm_zone.h and switch over to the new uma API. 2002-03-21 00:48:25 +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
Warner Losh
e7b110dcf7 Fix minor style(9) violation in de__Ping 2002-03-20 19:04:56 +00:00
Alfred Perlstein
15fe306743 Remove __P. 2002-03-20 08:56:31 +00:00
Alfred Perlstein
89c9a48352 Remove __P. 2002-03-20 07:51:46 +00:00
Alfred Perlstein
b63dc6ad47 Remove __P. 2002-03-20 05:48:58 +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
Alan Cox
b949bce678 Add #include so that the previous change compiles. 2002-03-19 06:45:25 +00:00
Alfred Perlstein
12ca2c2ede fix perfmon for DEVFS.
PR: kern/36008
2002-03-19 06:14:34 +00:00
Alan Cox
89734883fa Eliminate unnecessary calls to grow_stack() and useracc() from linux_sendsig()
and linux_rt_sendsig().  (See i386/i386/machdep.c revisions 1.503 and 1.504.)
2002-03-19 04:54:30 +00:00
Josef Karthauser
916e6e02e5 Add a USB comm driver.
Ported from NetBSD by:	akiyama
2002-03-18 18:23:42 +00:00
Alan Cox
8bf0e8324d Eliminate grow_stack() from (o)sendsig(). If the stack needs to grow,
copyout() will page fault and perform grow_stack() from trap_pfault().
These calls to grow_stack() accomplish nothing.

Reviewed by:	bde
2002-03-18 07:59:57 +00:00
Dag-Erling Smørgrav
2d5c9da3d9 s/options\t\t/options \t/ 2002-03-17 23:48:24 +00:00
Crist J. Clark
3b6c640c2a Spelling: s/guesst/guessed/ 2002-03-17 22:02:05 +00:00
Hellmuth Michaelis
e0d83003c4 Clean up the i4b kernel part: remove unmaintained #if(def)s for NetBSD,
OpenBSD and BSD/OS and respective code, remove pre $FreeBSD CVS id's,
remove #if(def)s and respective code for FreeBSD versions < 5 .
2002-03-17 09:33:15 +00:00
Alan Cox
42d5624e1f o Stop calling useracc() in (o)sendsig() now that we use copyout()
to copy the sigframe to the user's stack.  Useracc() takes a non-trivial
   amount of time.  Eliminating it speeds up signal delivery by 15% or more.
 o Update some comments.

Submitted by:	bde
2002-03-17 04:21:19 +00:00
Warner Losh
654d58ca24 Don't call the bios if the interrupt appaers to be already routed. Some
older PCI BIOSes hate this and this leads to panics when it is done.  Also,
assume that a uniquely routed interrupt is already routed.  This also
seems to help some older laptops with feable BIOSes cope.
2002-03-16 23:02:41 +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
Alfred Perlstein
85f190e4d1 Fixes to make select/poll mpsafe.
Problem:
  selwakeup required calling pfind which would cause lock order
  reversals with the allproc_lock and the per-process filedesc lock.
Solution:
  Instead of recording the pid of the select()'ing process into the
  selinfo structure, actually record a pointer to the thread.  To
  avoid dereferencing a bad address all the selinfo structures that
  are in use by a thread are kept in a list hung off the thread
  (protected by sellock).  When a selwakeup occurs the selinfo is
  removed from that threads list, it is also removed on the way out
  of select or poll where the thread will traverse its list removing
  all the selinfos from its own list.

Problem:
  Previously the PROC_LOCK was used to provide the mutual exclusion
  needed to ensure proper locking, this couldn't work because there
  was a single condvar used for select and poll and condvars can
  only be used with a single mutex.
Solution:
  Introduce a global mutex 'sellock' which is used to provide mutual
  exclusion when recording events to wait on as well as performing
  notification when an event occurs.

Interesting note:
  schedlock is required to manipulate the per-thread TDF_SELECT
  flag, however if given its own field it would not need schedlock,
  also because TDF_SELECT is only manipulated under sellock one
  doesn't actually use schedlock for syncronization, only to protect
  against corruption.

Proc locks are no longer used in select/poll.

Portions contributed by: davidc
2002-03-14 01:32:30 +00:00
Poul-Henning Kamp
7b03a440ee Add commented out GEOM line to NOTES 2002-03-11 08:27:23 +00:00
Luigi Rizzo
60cf2c1254 Export a (machine dependent) kernel variable bootdev as
machdep.guessed_bootdev, and add code to sysctl to parse its value
and give a (not necessarily correct) name to the device we booted
from (the main motivation for this code is to use the info in the
PicoBSD boot scripts, and the impact on the kernel is minimal).

NOTE: the information available in bootdev is not always reliable,
so you should not trust it too much.  The parsing code is the same
as in boot2.c, and cannot cover all cases -- as it is, it seems to
work fine with floppies and IDE disks recognised by the BIOS. It
_should_ work as well with SCSI disks recognised by the BIOS.
Booting from a CDROM in floppy emulation will return /dev/fd0 (because
this is what the BIOS tells us).
Booting off the network (e.g. with etherboot) leaves bootdev unset so
the value will be printed as "invalid (0xffffffff)".

Finally, this feature might go away at some point, hopefully when we
have a more reliable way to get the same information.

MFC-after: 5 days
2002-03-10 20:08:44 +00:00
Alan Cox
b275b127db Condition the compilation of trapwrite() on I386_CPU. 2002-03-10 02:11:38 +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
Hellmuth Michaelis
a6cd6fedf9 after joerg's recent merge of i4b's sppp with the main sppp, remove
now obsolete file.
2002-03-09 13:31:56 +00:00
Luigi Rizzo
c445626ad3 Enable DEVICE_POLLING in LINT now that it is safe to compile it there. 2002-03-09 08:04:58 +00:00
Hellmuth Michaelis
29c063831d make pcvt compile again without "options XSERVER".
PR: 35577
2002-03-08 19:06:46 +00:00
Robert Watson
7ed3fd6d72 Note that several of the recently documented clock-related kernel options
are for debugging purposes only.

Suggested by:	bde
2002-03-08 18:59:05 +00:00
Robert Watson
552c7f1b18 Apply a bit more of the patch from conf/35674: document the various
clock options in more detail.

PR:	conf/35674
Submitted by:	Hiten Pandya <hiten@uk.FreeBSD.org>
2002-03-08 18:50:07 +00:00
Robert Watson
08d38d4560 Apply part of the patch from conf/35674 to move the PFIL_HOOKS option
to somewhere more useful, and improve documentation of it.

PR:	conf/35674
Submitted by:	Hiten Pandya <hiten@uk.FreeBSD.org>
2002-03-08 18:47:32 +00:00
Robert Watson
daaa73b51f Synchronize NOTES with -STABLE LINT with respects to the placement
and commenting of NETSMB, NETWMBCRYPTO, and SMBFS.  In NOTES, they
had all floated to the bottom of the file with the list of seemingly
random and unclassified kernel options.  This change moves them back
up to the network protocol and file system areas, and also documents
the dependencies.
2002-03-08 15:34:23 +00:00
Poul-Henning Kamp
14450b4dca #include <machine/smp.h> in the SMP case.
don't include <sys/smp.h> at all.

Fallout from:	probably something jake did.
Hint by:	jhb
2002-03-08 14:31:12 +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
Crist J. Clark
c1b9f61d5e Sync with GENERIC. WITNESS_SKIPSPIN, and the ciss and iir devices. 2002-03-06 19:44:08 +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
Mitsuru IWASAKI
899ccf541a Add generalized power profile code.
This makes other power-management system (APM for now) to be able to
generate power profile change events (ie. AC-line status changes), and
other kernel components, not only the ACPI components, can be notified
the events.

 - move subroutines in acpi_powerprofile.c (removed) to kern/subr_power.c
 - call power_profile_set_state() also from APM driver when AC-line
   status changes
 - add call-back function for Crusoe LongRun controlling on power
   profile changes for a example
2002-03-04 18:46:13 +00:00