Commit Graph

32712 Commits

Author SHA1 Message Date
Josef Karthauser
43c6b63e82 NetBSD have adopted our usage of the DMAADDR macro:
date: 2002/05/28 12:42:39;  author: augustss;
    Change DMAADDR macro slightly.

Update the $NetBSD$ tags to reflect this and make slight changes to
usb_mem.h so that we're in sync with each other.
2002-05-28 20:51:43 +00:00
Søren Schmidt
d9d34030a4 Use %02d in track numbers, so that 1 is 01, much easier for scripts 2002-05-28 17:39:17 +00:00
Bruce Evans
97be9f99d2 Fixed some style bugs in recent commits. 2002-05-28 15:24:13 +00:00
Dag-Erling Smørgrav
6b658142fd Add some checks to prevent NULL dereferences.
Submitted by:	jhay
2002-05-28 14:29:56 +00:00
Maxime Henrion
8eb0098f4c Remove a duplicated vfs_freeopts() that I introduced in last
revision.
2002-05-28 13:27:55 +00:00
Benno Rice
c05529221e The stack is not at the top of the user struct. 2002-05-28 12:31:34 +00:00
Benno Rice
3cdee89f99 Remove an assertion as to whether the current thread already had the FPU or
not.  It may be desirable to put something similar back, but it's getting in
the way in it's current form.
2002-05-28 12:28:22 +00:00
Benno Rice
60ead00ef8 - Move macros that represent where syscall args are kept in a trapframe from
trap.c to frame.h
- Use the macros in vm_machdep.c:cpu_fork() to set up the trap frame of the
  new thread.
2002-05-28 12:24:29 +00:00
Benno Rice
8e36f0ec3f Remove the old prototype for kcopy. It's in cpu.h now. 2002-05-28 09:38:02 +00:00
Marcel Moolenaar
bcd46c600a Add support to GEOM for GUID Partition Tables (GPTs). The support
is currently conditional on both the GEOM and GEOM_GPT options to
avoid getting GPT by default and having the MBR and GPT classes
clash.
The correct behaviour of the MBR class would be to back-off (reject)
a MBR if it's a Protective MBR (a MBR with a single partition of type
0xEE that spans the whole disk (as far as the MBR is concerned).
The correct behaviour if the GPT class would be to back-off (reject)
a GPT if there's a MBR that's not a Protective MBR.

At this stage it's inconvenient to destroy a good MBR when working
with GPTs that it's more convenient to have the MBR class back-off
when it detects the GPT signature on disk and have the GPT class
ignore the MBR.

In sys/gpt.h UUIDs (GUIDs) for the following FreeBSD partitions
have been defined:

GPT_ENT_TYPE_FREEBSD
	FreeBSD slice with disklabel. This is the equivalent of
	the well-known FreeBSD MBR partition type.
GPT_ENT_TYPE_FREEBSD_{SWAP|UFS|UFS2|VINUM}
	FreeBSD partitions in the context of disklabel. This is
	speculating on the idea to use the GPT to hold partitions
	instead if slices and removing the fixed (and low) limits
	we have on the number of partitions.

This commit lacks a GPT image for the regression suite.
2002-05-28 09:04:48 +00:00
Benno Rice
25e2288dd7 Implement pmap_copy and pmap_copy_page. 2002-05-28 07:38:55 +00:00
Benno Rice
37d87c9ff8 Move the kcopy() function from trap.c to machdep.c. Add a prototype. 2002-05-28 07:36:36 +00:00
Dag-Erling Smørgrav
6c533ac713 Add NAI copyright. 2002-05-28 06:53:41 +00:00
Dag-Erling Smørgrav
b0405a2ad3 Back out part of previous commit; the dev_t union trick is still useful in
the kvm case.
2002-05-28 06:34:28 +00:00
Marcel Moolenaar
52183d0145 Add uuidgen(2) and uuidgen(1).
The uuidgen command, by means of the uuidgen syscall, generates one
or more Universally Unique Identifiers compatible with OSF/DCE 1.1
version 1 UUIDs.

From the Perforce logs (change 11995):

Round of cleanups:
o  Give uuidgen() the correct prototype in syscalls.master
o  Define struct uuid according to DCE 1.1 in sys/uuid.h
o  Use struct uuid instead of uuid_t. The latter is defined
   in sys/uuid.h but should not be used in kernel land.
o  Add snprintf_uuid(), printf_uuid() and sbuf_printf_uuid()
   to kern_uuid.c for use in the kernel (currently geom_gpt.c).
o  Rename the non-standard struct uuid in kern/kern_uuid.c
   to struct uuid_private and give it a slightly better definition
   for better byte-order handling. See below.
o  In sys/gpt.h, fix the broken uuid definitions to match the now
   compliant struct uuid definition. See below.
o  In usr.bin/uuidgen/uuidgen.c catch up with struct uuid change.

A note about byte-order:
        The standard failed to provide a non-conflicting and
unambiguous definition for the binary representation. My initial
implementation always wrote the timestamp as a 64-bit little-endian
(2s-complement) integral. The clock sequence was always written
as a 16-bit big-endian (2s-complement) integral. After a good
nights sleep and couple of Pan Galactic Gargle Blasters (not
necessarily in that order :-) I reread the spec and came to the
conclusion that the time fields are always written in the native
by order, provided the the low, mid and hi chopping still occurs.
The spec mentions that you "might need to swap bytes if you talk
to a machine that has a different byte-order". The clock sequence
is always written in big-endian order (as is the IEEE 802 address)
because its division is resulting in bytes, making the ordering
unambiguous.
2002-05-28 06:16:08 +00:00
Marcel Moolenaar
494eefd86b Add syscall uuidgen() for generating Univerally Unique Identifiers
(UUIDs). On ia64 UUIDs, aka GUIDs, are used by EFI and the firmware
among others. To create GUID Partition Tables (GPTs), we need to
be able to generate UUIDs.
2002-05-28 05:58:06 +00:00
Dag-Erling Smørgrav
1a149fcd67 Introduce struct xtty, used when exporting tty information to userland.
Make kern.ttys export a struct xtty rather than struct tty.  Since struct
tty is no longer exposed to userland, remove the dev_t / udev_t hack.

Sponsored by:	DARPA, NAI Labs
2002-05-28 05:40:53 +00:00
Alan Cox
8f2ba19c90 o Remove unused #defines. 2002-05-27 22:10:28 +00:00
Benno Rice
31956eeb9e Print srr1 in printtrap()
Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-05-27 11:20:19 +00:00
Benno Rice
31c82d0332 Get the correct memory regions from OpenFirmware. We were getting the
"available" ranges, not the "physical" ranges.  Clean up some of the
bootstrap code in the process.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-05-27 11:18:12 +00:00
Benno Rice
7ed61facaa Use correct types in [sf]uword32. 2002-05-27 10:50:47 +00:00
Dima Dorfman
ad308c10c7 Don't tsleep() with an sb_mtx held. 2002-05-27 05:20:15 +00:00
Mike Barcroft
aa37be50ad Use underscored variant of BYTE_ORDER and friends to allow this to
work in a !__BSD_VISIBLE environment.
2002-05-27 00:55:17 +00:00
Josef Karthauser
ca3971124e Regen. 2002-05-27 00:01:21 +00:00
Josef Karthauser
b826a68b7f Add a couple of new aue ethernet adapters from NetBSD:
ELECOM LDUSBLTX
	IODATA USBETTXS
2002-05-27 00:00:48 +00:00
Josef Karthauser
12d2a2a729 Use aue_lookup for looking up devices. 2002-05-26 23:54:37 +00:00
Josef Karthauser
5908b50130 Correct the usage of DMAADDR in a piece of '#if 0'd code. (The compiler
didn't pick it up.)
2002-05-26 22:13:09 +00:00
Josef Karthauser
cc12206976 MFNetBSD:
revision 1.124
    date: 2002/05/26 03:10:02;  author: minoura;  state: Exp;  lines: +3 -3
    Clear done_head in the HCCA *before* acknoledging the interrupt.
    Driver lost some completed transfers under heavy loads.
2002-05-26 22:11:34 +00:00
Josef Karthauser
883d14d6c6 MFNetBSD: ohci.c (1.124), uhci.c (1.159), usbdi.c (1.100)
date: 2002/05/19 06:24:31;  author: augustss;  state: Exp;
    Update dma memory access API a little.

NetBSD have adopted our way of using the KERNADDR macro.  Update
the revision tags to show that we're in sync, and remove the casts
that they did in their adaptation.
2002-05-26 22:00:06 +00:00
Poul-Henning Kamp
291daf5735 Add a proof-of-concept encryption class.
"The only hard problem in cryptography is key-management."

All sectors are encrypted with AES in CBC mode using a constant key,
currently compiled in and all zero.

To activate this module, write the magic header on the partition:

	echo "<<FreeBSD-GEOM-AES>>" | dd conv=sync of=/dev/md98

The encrypted device will be one sector shorter and have ".aes"
appended to its name.

Sponsored by: DARPA & NAI Labs.
2002-05-26 18:14:38 +00:00
Poul-Henning Kamp
d4116af4f9 Give the closet-dev_t we hand to the diskdrivers a name. 2002-05-26 17:35:14 +00:00
Poul-Henning Kamp
855f8b26f2 Only clear the spoiled flag if the class had no spoiled method, the spoiled
method may have deallocated the consumer already and modifying free()'ed
memory is bad style.

Sponsored by: DARPA & NAI Labs.
2002-05-26 17:17:25 +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
a6b82b31b1 Remove a hack for using an external compiler if cross compiling. 2002-05-26 15:55:28 +00:00
Dag-Erling Smørgrav
7b856994fd Make sure there's a statement after the out: label in clockattach(). 2002-05-26 11:23:00 +00:00
Nick Hibma
44b279e2f6 Cosmetic change (align with other boot blocks):
CONSPEED -> COMSPEED

Approved by:	nyan
2002-05-26 10:11:17 +00:00
Poul-Henning Kamp
fcf867e9f7 Mis-edit in last commit. 2002-05-26 09:57:59 +00:00
Poul-Henning Kamp
fde2a2e414 Be a bit smarter about rewriting data so we don't loose too much performance.
Sponsored by: DARPA & NAI Labs.
2002-05-26 09:38:51 +00:00
Poul-Henning Kamp
f43b2bac72 Use an umazone per unit for allocating the sectors for malloc backing.
Clean up things properly when we unconfigure malloc backed units.

Sponsored by:	DARPA & NAI Labs.
2002-05-26 06:48:55 +00:00
Alan Cox
4b9fdc2bce o Acquire and release Giant around pmap operations in vm_fault_unwire()
and vm_map_delete().  Assert GIANT_REQUIRED in vm_map_delete()
   only if operating on the kernel_object or the kmem_object.
 o Remove GIANT_REQUIRED from vm_map_remove().
 o Remove the acquisition and release of Giant from munmap().
2002-05-26 04:54:56 +00:00
Poul-Henning Kamp
c6517568df Give the "malloc" backing of md(4) an adaptive multilevel index tree to
remove the need for a contiguous array with pointers to all the sectors.

Try to make failure to malloc(9) memory a non-hang situation.

Eventually this will allow us to test the 64bit cleanness of the disk
I/O patch, but more work is outstanding here and elsewhere.

Sponsored by:	DARPA & NAI Labs.
2002-05-25 20:44:20 +00:00
Brooks Davis
c69b7ffe7d Make discard devices clonable and unloadable. Also, change the
interface name from ds# to disc#.
2002-05-25 20:20:35 +00:00
Brooks Davis
ae5a19be8e Move all unit number management cloned interfaces into the cloning
code.  The reverts the API change which made the <if>_clone_destory()
functions return an int instead of void bringing us into closer
alignment with NetBSD.

Reviewed by:	net (a long time ago)
2002-05-25 20:17:04 +00:00
Alan Cox
a739e09c6e o Remove some unnecessary casting from and add some necessary casting to
aio_suspend() and lio_listio().

Submitted by:	bde
2002-05-25 18:39:42 +00:00
Dag-Erling Smørgrav
4b4c18f861 ANSIfy (significant portions were already partly ANSIfied) 2002-05-25 15:52:53 +00:00
Dag-Erling Smørgrav
b7457aabf6 Remove register. 2002-05-25 15:44:38 +00:00
Dag-Erling Smørgrav
dedf14f521 Automated whitespace cleanup. 2002-05-25 15:43:06 +00:00
Bruce Evans
e788f79698 Fixed printf format errors which apparently crept in while -Wformat was
disabled for gcc-3.
2002-05-25 11:18:03 +00:00
Bruce Evans
ae4c33defa "Fixed" printf format errors (64-bit daddr_t casualties; should use %jx
instead of %llx when %j is available).

Changed nearby output formats from %x to %#x so that it is obvious that the
numbers are in hex (vinum mostly uses 0x%x elsewhere).

Didn't fix nearby format printf errors (long lines).
2002-05-25 11:12:30 +00:00
Bruce Evans
ff8cc2eb35 Fixed printf format errors. Most of them are 64-bit daddr_t casualties.
Printing daddr_t's using %d format was always an error, but gcc's
warning about it was ignored for supported 64-bit arches and not printed
for supported 32-bit arches.  Hundreds if not thousands thousands of
previously "fixed" daddr_t printings are now broken on 32-bit machines
by casting daddr_t's to longs.  daddr_t's should be printed using %jd
format, but this fix uses %lld since %j is not implemented in the
kernel yet.

Fixed some nearby format printf errors (style bugs).
2002-05-25 11:05:07 +00:00
Bruce Evans
5cc5b1d344 Fixed a printf format error. It was old and should have been detected by
gcc-2.9x, but somehow wasn't fixed already.
2002-05-25 10:48:03 +00:00
Jake Burkholder
4d574756ac Convert the interrupt queue from an array to a linked list. Implement
intr_dequeue in asm so that it can easily be modified to do light weight
context switching.
2002-05-25 02:39:28 +00:00
Jake Burkholder
0679dc5f91 Try to handle "double faults" occuring at more trap levels (ie 4 :)). 2002-05-25 01:45:11 +00:00
Jake Burkholder
597e13d8c5 Minor style. 2002-05-25 01:44:08 +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
Alfred Perlstein
fa09b4015d Backout 1.54 (restore definition for printf0 to actually do something). 2002-05-24 19:16:08 +00:00
Maxime Henrion
ad841cb9b2 Convert ext2fs to nmount(2). 2002-05-24 17:38:01 +00:00
Thomas Moestl
9bb711b95d Fully reset a gem on some error conditions; otherwise it would hang in
about 1 of 10 cases.

Proposed and tested by:	phk
2002-05-24 12:47:41 +00:00
Mark Murray
1422d23663 The previous ANSIfication did not take into account earlier,
non-compliant compilers. Revert to the compatible form to allow
upgrade-builds.
2002-05-24 09:40:51 +00:00
Mark Murray
f1f239b30d The previous ANSIfication did not take into account upgrade-builds
uing an earlier, non-compliant compiler. Revert to the compatible
form.
2002-05-24 09:37:10 +00:00
SUZUKI Shinsuke
db49169620 Fixed AES encryption algorithm bug
PR:             kern/38465
Obtained from:  Ramana Yarlagadda <ramana.yarlagadda@analog.com>
2002-05-24 07:26:17 +00:00
Peter Wemm
55be04ab11 Fix warnings: deprecated use of label at end of compound statement 2002-05-24 07:02:04 +00:00
Peter Wemm
daefef7cae Fix warnings due to macro varargs. 2002-05-24 06:32:18 +00:00
Peter Wemm
b01d78f42f Oops, I missed this warning. Comment out extra junk after #endif 2002-05-24 06:22:48 +00:00
Peter Wemm
260a7c5a44 Pacify gcc by preinitializing a variable. 2002-05-24 06:17:42 +00:00
Peter Wemm
86a492bffa Fix a few warnings by adding a missing prototype 2002-05-24 06:17:17 +00:00
Peter Wemm
ac0f456146 Fix warning; Extra tokens after #endif 2002-05-24 06:11:07 +00:00
Peter Wemm
46d870bc0c Fix warning; remove unused arg that was passed through uninitialized. 2002-05-24 06:10:25 +00:00
Peter Wemm
34e3110c70 Fix warnings. Also, removed an unused variable that I found that was just
initialized and never used afterwards.
2002-05-24 06:06:18 +00:00
Peter Wemm
885fbc97c1 Fix new compiler unhappiness. 2002-05-24 06:01:07 +00:00
Peter Wemm
7d05a38314 Fix deprecated use of label at end of compound statement 2002-05-24 05:58:13 +00:00
Peter Wemm
70148712be Constify a debug function arg that we pass __func__ to in order to pacify
gcc-3.1's 'const char *__func__;'
2002-05-24 05:57:47 +00:00
Peter Wemm
3fec4bb98a Fix warnings; deprecated use of label at end of compound statement 2002-05-24 05:54:40 +00:00
Peter Wemm
3b688a9484 pacify gcc-3.1's -Wunused checking. 2002-05-24 05:53:57 +00:00
Peter Wemm
e82685e79f Fix warning; deprecated use of label at end of compound statement 2002-05-24 05:50:28 +00:00
Peter Wemm
fe8ae4dd13 Fix some low hanging fruit warnings. There are problems in i4b_ing.c
still, but they are due due to some bogosity in netgraph.
2002-05-24 05:46:50 +00:00
Peter Wemm
dacd8bbbd6 Fix trivial warning:
smb_iod.c:560: deprecated use of label at end of compound statement
2002-05-24 05:40:51 +00:00
Peter Wemm
9c580bea80 Fix new gcc-3.1 warnings. I think this gets GENERIC compiling cleanly
again.
2002-05-24 05:21:36 +00:00
Gordon Tetlow
666df9ddf3 Add support for reading an additional loader configuration file. By default,
this is called /boot/nextboot.conf. This file is required to have it's first
line be nextboot_enable="YES" for it to be read. Also, this file is
rewritten by the loader to nextboot_enable="NO"<space> after it is read.
This makes it so the file is read exactly once. Finally, the nextboot.conf
is removed shortly after the filesystems are mounted r/w.

Caution should be taken as you can shoot yourself in the foot. This is only
the loader piece. There will be a tool called nextboot(8) that will manage
the nextboot.conf file for you. It is coming shortly.

Reviewed by:	dcs
Approved by:	jake (mentor)
2002-05-24 02:28:58 +00:00
Alan Cox
4e94f40222 o Replace the vm_map's hint by the root of a splay tree. By design,
the last accessed datum is moved to the root of the splay tree.
   Therefore, on lookups in which the hint resulted in O(1) access,
   the splay tree still achieves O(1) access.  In contrast, on lookups
   in which the hint failed miserably, the splay tree achieves amortized
   logarithmic complexity, resulting in dramatic improvements on vm_maps
   with a large number of entries.  For example, the execution time
   for replaying an access log from www.cs.rice.edu against the thttpd
   web server was reduced by 23.5% due to the large number of files
   simultaneously mmap()ed by this server.  (The machine in question has
   enough memory to cache most of this workload.)

   Nothing comes for free: At present, I see a 0.2% slowdown on "buildworld"
   due to the overhead of maintaining the splay tree.  I believe that
   some or all of this can be eliminated through optimizations
   to the code.

Developed in collaboration with: Juan E Navarro <jnavarro@cs.rice.edu>
Reviewed by:	jeff
2002-05-24 01:33:24 +00:00
Peter Wemm
e09d00a880 For now, make the .ifdef GCC3 case default. We should change -Wno-format
back to -fformat-extensions (or whatever) when we have the functionality.
We are gaining warnings again that should be fixed but the are being hidden
by NO_WERROR and all the -Wformat noise.
2002-05-24 01:02:45 +00:00
Maxime Henrion
a9f5c04aae Convert unionfs to nmount. 2002-05-24 00:44:44 +00:00
Andrew R. Reiter
d5f2cdc5f2 - Remove a few storage pools and replace them with UMA zones. The spans
code is now storage pool free, so I believe this only leaves the uni
  base not cleaned.
2002-05-24 00:39:58 +00:00
Andrew R. Reiter
8f73020eca - Turn a couple of storage pools into UMA zones and their associated calls
to the appropriate UMA api calls.
2002-05-24 00:38:25 +00:00
Maxime Henrion
23bb7c1425 Fix comments. 2002-05-24 00:16:13 +00:00
Maxime Henrion
2274ec995c Style nit, no functional changes. 2002-05-23 23:22:22 +00:00
Andrew R. Reiter
e7d3d526c0 - Fix uma_zcreate parameters -- don't pass M_* flags here, doh. 2002-05-23 23:21:00 +00:00
Maxime Henrion
cdb5638a27 Update comments to better match reality. 2002-05-23 23:18:25 +00:00
Maxime Henrion
9fcc512cd6 Convert nullfs to nmount. 2002-05-23 23:07:27 +00:00
Maxime Henrion
9ee6bf717f Slightly change the way we pass mount options to the filesystem
VFS_NMOUNT operations.

Reviewed by:	phk
2002-05-23 23:02:19 +00:00
Mike Barcroft
9e2e036f90 o Conditionalize sections for POSIX.1-2001 compatibility.
o Use POSIX spelling for types, where possible.
o Define size_t in the __BSD_VISIBLE case (this isn't really needed
  for standards conformance, but follows the tradition of not
  requiring <sys/types.h> as a prerequisite).
o Use _BYTE_ORDER and friends instead of BYTE_ORDER and friends, since
  there may not be enough pollution in order for the latter to work.
o Add an XXX note about the missing IPPROTO_IPV6 macro.
2002-05-23 18:48:27 +00:00
Mark Murray
b1fc278484 ANSIfy variable-argument macros. 2002-05-23 18:26:23 +00:00
Hajimu UMEMOTO
4b562eede1 In m_aux_delete, no need to chase beyond victim.
Submitted by:	archie
Obtained from:	KAME
2002-05-23 15:59:48 +00:00
Mark Murray
5e05b84b02 Whitespace only; fix indentation. 2002-05-23 12:09:14 +00:00
Søren Schmidt
949e9d36aa Dont panic if only one disk on a channel can do tagged queueing.
MFC:	asap
2002-05-23 08:17:16 +00:00
Ruslan Ermilov
1cd1fdeaf5 Fixed broken ``make -jX install''.
Spotted by:	make release TARGET_ARCH=ia64
2002-05-23 07:25:01 +00:00
John Baldwin
cc5d39f81e Minor nit: get p pointer in msleep() from td->td_proc (where
td == curthread) rather than from curproc.
2002-05-23 04:14:18 +00:00
John Baldwin
a79c98fa98 Whitespace: trim a trailing tab. 2002-05-23 04:12:28 +00:00
Dag-Erling Smørgrav
db586c8b7c Make the counters uintmax_ts, and use %ju rather than %llu. 2002-05-23 03:08:42 +00:00
Josef Karthauser
4de1678702 Fix a panic by allocating the iface structure locally in the attach
function instead of in usb_probe_and_attach.
2002-05-23 00:36:14 +00:00
Andrew R. Reiter
2a6931421f - Turn two more storage pools into UMA zones and make the related memory
allocations and frees use the UMA api.
2002-05-23 00:34:12 +00:00
Josef Karthauser
0f19b0d03a Reflect some changes in the NetBSD code path, and sligh adjustments to ours.
(Non-functional changes).
2002-05-23 00:26:06 +00:00
Josef Karthauser
a257364105 Sync with NetBSD. (Non functional changes). 2002-05-22 23:01:13 +00:00
Josef Karthauser
1acba7451d Fix a bug: Use USBD_DEFAULT_INTERVAL instead of USBD_DEFAULT_TIMEOUT
in a call to usbd_open_pipe_ival.
2002-05-22 22:58:38 +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
Bruce Evans
fba2e6106f Quick fix for non-unique inode numbers for hard links. We use the
byte offset of the directory entry for the inode number for all types
of files except directories, although this breaks hard links for
non-directories even if it doesn't cause overflow.  Just ignore this
broken inode number for stat() and readdir() and return a less broken
one (the block offset of the file), so that applications normally can't
see the brokenness.

This leaves at least the following brokenness:
- extra inodes, vnodes and caching for hard links.
- various overflow bugs.  cd9660 supports 64-bit block numbers, but we
  silently ignore the top 32 bits in isonum_733() and then drop another
  10 bits for our broken inode numbers.  We may also have sign extension
  bugs from storing 32-bit extents in ints and longs even if ints are
  32-bits.  These bugs affect DVDs.  mkisofs apparently limits them
  by writing directory entries first.

Inode numbers were broken mainly in 4.4BSD-Lite2.  FreeBSD-1.1.5 seems
to have a correct implementation modulo the overflow bugs.  We need
to look up directory entries from inodes for symlinks only.  FreeBSD-1.1.5
use separate fields (iso_parent_extent, iso_parent) to point to the
directory entry.  4.4BSD-Lite doesn't have these, and abuses i_ino to
point to the directory entry.  Correct pointers are impossible for
hard links, but symlinks can't be hard links.
2002-05-22 08:50:18 +00:00
Bruce Evans
2dd0744cbe Include <sys.systm.h> for the declaration of some atomic functions -- don't
depend on namespace pollution in <sys/mutex.h>.
2002-05-22 06:26:44 +00:00
Marcel Moolenaar
76a0f0f560 o Add records for PCI bus and PCI device errors.
o  Rename mem_platform_id to mem_oem_id.
o  Minor style fixes.
2002-05-22 02:25:06 +00:00
Alan Cox
03adb816d7 o Make contigmalloc1() static. 2002-05-22 01:01:37 +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
703fc290fb Add appropriate IA32 "pause" instructions to improve performanec on
Pentium 4's and newer IA32 processors.  The "pause" instruction has been
verified by Intel to be a NOP on all currently existing IA32 processors
prior to the Pentium 4.
2002-05-21 22:26:35 +00:00
Andrew R. Reiter
ec41816009 - td will never be NULL, so the call to soalloc() in socreate() will always
be passed a 1; we can, however, use M_NOWAIT to indicate this.
- Check so against NULL since it's a pointer to a structure.
2002-05-21 21:30:44 +00:00
John Baldwin
0e54ddadd9 Fix an old cut 'n' paste bug inherited from BSD/OS: don't increment 'i'
twice once we are in the long wait stage of spinning on a spin mutex.
2002-05-21 21:27:05 +00:00
Andrew R. Reiter
1515cd22e1 - OR the flag variable with M_ZERO so that the uma_zalloc() handles the
zero'ing out of the allocated memory.  Also removed the logical bzero
  that followed.
2002-05-21 21:18:41 +00:00
John Baldwin
e6302957fe Whitespace fixup, properly indent the body of an else clause. 2002-05-21 21:13:27 +00:00
John Baldwin
2498cf8c42 Add code to make default mutexes adaptive if the ADAPTIVE_MUTEXES kernel
option is used (not on by default).

- In the case of trying to lock a mutex, if the MTX_CONTESTED flag is set,
  then we can safely read the thread pointer from the mtx_lock member while
  holding sched_lock.  We then examine the thread to see if it is currently
  executing on another CPU.  If it is, then we keep looping instead of
  blocking.
- In the case of trying to unlock a mutex, it is now possible for a mutex
  to have MTX_CONTESTED set in mtx_lock but to not have any threads
  actually blocked on it, so we need to handle that case.  In that case,
  we just release the lock as if MTX_CONTESTED was not set and return.
- We do not adaptively spin on Giant as Giant is held for long times and
  it slows SMP systems down to a crawl (it was taking several minutes,
  like 5-10 or so for my test alpha and sparc64 SMP boxes to boot up when
  they adaptively spinned on Giant).
- We only compile in the code to do this for SMP kernels, it doesn't make
  sense for UP kernels.

Tested on:	i386, alpha, sparc64
2002-05-21 20:47:11 +00:00
John Baldwin
e8fdcfb57a Optimize spin mutexes for UP kernels without debugging to just enter and
exit critical sections.  We only contest on a spin mutex on an SMP kernel
running on an SMP machine.
2002-05-21 20:34:28 +00:00
Poul-Henning Kamp
07107de9bc Introduce the concept of "magic spaces", and implement them in most of
the relevant classes.

Some methods may implement various "magic spaces", this is reserved
or magic areas on the disk, set a side for various and sundry purposes.
A good example is the BSD disklabel and boot code on i386 which occupies
a total of four magic spaces: boot1, the disklabel, the padding behind
the disklabel and boot2.  The reason we don't simply tell people to
write the appropriate stuff on the underlying device is that (some of)
the magic spaces might be real-time modifiable.  It is for instance
possible to change a disklabel while partitions are open, provided
the open partitions do not get trampled in the process.

Sponsored by:	DARPA & NAI Labs.
2002-05-21 20:33:49 +00:00
John Baldwin
bb0d293f15 Add an inline function cpu_pause() for the IA32 'pause' instruction. 2002-05-21 20:21:53 +00:00
Poul-Henning Kamp
3abe4a80a5 Remove the "-class" suffix from classes, they will not be ambiguous.
Sponsored by:	DARPA & NAI Labs.
2002-05-21 19:50:04 +00:00
Andrew R. Reiter
db40007d42 - Change the newly turned INVARIANTS #ifdef blocks (they were changed from
DIAGNOSTIC yesterday) into KASSERT()'s as these help to increase code
  readability.
2002-05-21 18:52:24 +00:00
Semen Ustimenko
96b825e7ca Fix null_lock() not unlocking vp->v_interlock if LK_THISLAYER.
Reviewed by:	bp@FreeBSD.org
MFC after:	1 week
2002-05-21 18:07:33 +00:00
Yoshihiro Takahashi
93bb160832 Fixed to conflict labels.
Submitted by:	Kaho Toshikazu <kaho@elam.kais.kyoto-u.ac.jp>
2002-05-21 12:53:48 +00:00
Yoshihiro Takahashi
9b96eed728 Remove unneeded ## for GCC 3.1 2002-05-21 12:50:20 +00:00
Yoshihiro Takahashi
b827692436 MFi386: revision 1.22 2002-05-21 09:44:52 +00:00
Noriaki Mitsunaga
15e19cbbe8 MFi386: 1.398-1.399 (${MACHINE_ARCH}_dump.c -> dump_machdep.c) 2002-05-21 04:13:08 +00:00
Seigo Tanimura
102638407c Lock the writer socket across sorwakeup(fip->fi_writesock).
Spotted by:	peter
2002-05-21 02:37:56 +00:00
Jake Burkholder
2dbb68a495 Update tsb_tte_enter prototype per tsb.c rev 1.20. 2002-05-21 02:15:37 +00:00
Jake Burkholder
38c04dc163 Rewrite pmap_enter to avoid copying ttes in all cases.
Pass the tte data to tsb_tte_enter instead of a whole tte, also to avoid
copying.
2002-05-21 02:14:11 +00:00
Jake Burkholder
f631b588f5 Redefine the tte accessor macros to take a pointer to a tte, instead of the
value of the tag or data field.
Add macros for getting the page shift, size and mask for the physical page
that a tte maps (which may be one of several sizes).
Use the new cache functions for invalidating single pages.
2002-05-21 00:29:02 +00:00
Ian Dowse
d497e87891 Avoid exposing struct if_clone and the sys/queue.h macros to userland
programs by restricting these to the case where _KERNEL is defined.

Reviewed by:	brooks (ages ago)
2002-05-20 22:48:39 +00:00
Andrew R. Reiter
4cb674c960 - Turn a few DIAGNOSTIC into INVARIANTS since they are really sanity
checks.
2002-05-20 22:05:13 +00:00
Andrew R. Reiter
1e404e4e86 - Turn a DIAGNOSTIC into an INVARIANTS since it's a sanity check. Use
proper ``if'' statement style.
2002-05-20 22:04:19 +00:00
Andrew R. Reiter
e16f6e6200 - Turn a #ifdef DIAGNOSTIC to #ifdef INVARIANTS as the code from this line
through the #endif is really a sanity check.

Reviewed by: jake
2002-05-20 21:50:39 +00:00
Warner Losh
3029e334b7 Use correct inactivity timeout of 2 minutes rather than 24 seconds due to
bogons introduced at some point.

Submitted by: thomas skibo
2002-05-20 19:33:49 +00:00
John Baldwin
525c135972 In witness_unlock(), when updating a lock list entry bucket, decrement the
count of lock list entries after we fixup the bucket of lock list entries.
In theory we can remove the intr_disable/intr_restore() calls now.
2002-05-20 19:16:22 +00:00
Jake Burkholder
45eefe7176 Add a bandaid so that sysctl kern.malloc works on sparc64. 2002-05-20 18:29:37 +00:00
John Baldwin
4c1cc01cd8 In uma_zalloc_arg(), if we are performing a M_WAITOK allocation, ensure
that td_intr_nesting_level is 0 (like malloc() does).  Since malloc() calls
uma we can probably remove the check in malloc() for this now.  Also,
perform an extra witness check in that case to make sure we don't hold
any locks when performing a M_WAITOK allocation.
2002-05-20 17:54:48 +00:00
John Baldwin
bbd296aba6 - Allow witness_sleep() to be called when witness hasn't been initialized
yet.  We just return without performing any checks.
- Don't explicitly enter and exit critical sections when walking lock
  lists.  We don't need a critical section to walk the list of sleep
  locks for a thread.  We check to see if a spin lock list is empty
  before we walk it.  If the list is empty we don't need to walk it.  If
  it isn't then we already hold at least one spin lock and are already in
  a critical section and thus don't need our own explicit critical
  section.
2002-05-20 17:49:46 +00:00
John Baldwin
42e498655d Fix the td_intr_nesting_level check to work ok if a flag like M_ZERO is
passed in with M_WAITOK to malloc().
2002-05-20 17:46:57 +00:00
Mike Silbersack
184fec1a09 Subtle fix to the accept filter LRU code. In some cases, a newly
initialized socket with no qlimit was being passed in.  In order
to handle this case properly, we must not use >= when comparing
queue sizes to qlimit.  As a result of this improper handling,
a panic could result in certain cases.

PR:		38325
MFC after:	3 days
2002-05-20 17:34:31 +00:00
Jake Burkholder
b78213fb0b Add SMP aware cache flushing functions, which operate on a single physical
page.  These send IPIs if necessary in order to keep the caches in sync on
all cpus.
2002-05-20 16:30:47 +00:00
Jake Burkholder
856316e9c6 Forward declare struct trapframe. 2002-05-20 16:12:35 +00:00
Jake Burkholder
0f33dc7b6f Forward declare struct thread. 2002-05-20 16:11:38 +00:00
Jake Burkholder
f7c81a5182 De-inline the tlb demap functions. These were so big that gcc3.1 refused
to inline them anyway.  ;)
2002-05-20 16:10:17 +00:00
Maxime Henrion
e9e705b0df Change two vput() that should have been vrele().
Submitted by:	iedowse
2002-05-20 14:59:43 +00:00