Commit Graph

11066 Commits

Author SHA1 Message Date
Peter Wemm
c8b14fa8f0 Move nvram out of DEFAULTS. There really isn't a lot of justification
for consuming the memory.  The module works just fine in the unlikely
case that this is needed.  It can still be compiled into a custom kernel.
2007-10-29 22:19:08 +00:00
John Baldwin
8518d50a63 - Add constants for the different memory types in the SMAP table.
- Use the SMAP types and constants from <machine/pc/bios.h> in the boot
  code rather than duplicating it.
2007-10-28 21:23:49 +00:00
Peter Wemm
d556638404 Split /dev/nvram driver out of isa/clock.c for i386 and amd64. I have not
refactored it to be a generic device.
Instead of being part of the standard kernel, there is now a 'nvram' device
for i386/amd64.  It is in DEFAULTS like io and mem, and can be turned off
with 'nodevice nvram'.  This matches the previous behavior when it was
first committed.
2007-10-26 03:23:54 +00:00
Warner Losh
97816f8e3d Add usb serial devices by default. I'm tired of telling people how to
do this that should know better :-).
2007-10-26 02:20:29 +00:00
John Baldwin
e0f5da6d08 Update copyright attribution.
MFC after:	3 days
2007-10-24 21:16:22 +00:00
Robert Watson
30d239bc4c Merge first in a series of TrustedBSD MAC Framework KPI changes
from Mac OS X Leopard--rationalize naming for entry points to
the following general forms:

  mac_<object>_<method/action>
  mac_<object>_check_<method/action>

The previous naming scheme was inconsistent and mostly
reversed from the new scheme.  Also, make object types more
consistent and remove spaces from object types that contain
multiple parts ("posix_sem" -> "posixsem") to make mechanical
parsing easier.  Introduce a new "netinet" object type for
certain IPv4/IPv6-related methods.  Also simplify, slightly,
some entry point names.

All MAC policy modules will need to be recompiled, and modules
not updates as part of this commit will need to be modified to
conform to the new KPI.

Sponsored by:	SPARTA (original patches against Mac OS X)
Obtained from:	TrustedBSD Project, Apple Computer
2007-10-24 19:04:04 +00:00
John Baldwin
5c5b5d4607 Slightly cleanup the 'bootdev' concept on x86 by changing the various
macros to treat the 'slice' field as a real part of the bootdev instead
of as hack that spans two other fields (adaptor (sic) and controller)
that are not used in any modern FreeBSD boot code.

MFC after:	1 week
2007-10-24 04:03:25 +00:00
John Baldwin
7e68ed1218 Stop disabling USB in the PAE kernel config. The USB code has been
using bus_dma(9) for quite a while now and has been used on 64-bit archs
as well.

MFC after:	1 month
2007-10-24 03:53:10 +00:00
Julian Elischer
3745c395ec Rename the kthread_xxx (e.g. kthread_create()) calls
to kproc_xxx as they actually make whole processes.
Thos makes way for us to add REAL kthread_create() and friends
that actually make theads. it turns out that most of these
calls actually end up being moved back to the thread version
when it's added. but we need to make this cosmetic change first.

I'd LOVE to do this rename in 7.0  so that we can eventually MFC the
new kthread_xxx() calls.
2007-10-20 23:23:23 +00:00
Bjoern A. Zeeb
2b3e7485f6 Fold multiple asm statements into one so that the compiler at a certain
optimization level (-march=pentium-mmx for example) does not insert
intermediate ops which would trash the carry.

Change both sys/i386/i386/in_cksum.c[1] and sys/i386/include/in_cksum.h.

To my best understanding the same problem was addressed in rev. 1.16
of src/sys/i386/include/in_cksum.h for just a single function 3y ago.

Reviewed by:  jhb
Submitted by: Zhouyi ZHOU <zhouzhouyi FreeBSD.org> (intial version of [1])
MFC after:    5 days
PR:           115678, 69257
2007-10-20 22:18:42 +00:00
Ken Smith
95b55771b2 Switch over to ULE as the default scheduler for amd64 and i386
architectures.
2007-10-19 12:30:33 +00:00
Alexander Leidinger
9f05d312b3 Backout sensors framework.
Requested by:	phk
Discussed on:	cvs-all
2007-10-15 20:00:24 +00:00
Alexander Leidinger
989500bf1a Import it(4) and lm(4), supporting most popular Super I/O Hardware Monitors.
Submitted by:	Constantine A. Murenin <cnst@FreeBSD.org>
Sponsored by:	Google Summer of Code 2007 (GSoC2007/cnst-sensors)
Mentored by:	syrinx
Tested by:	many
OKed by:	kensmith
Obtained from:	OpenBSD (parts)
2007-10-14 10:55:50 +00:00
Marius Strobl
55aaf894e8 Make the PCI code aware of PCI domains (aka PCI segments) so we can
support machines having multiple independently numbered PCI domains
and don't support reenumeration without ambiguity amongst the
devices as seen by the OS and represented by PCI location strings.
This includes introducing a function pci_find_dbsf(9) which works
like pci_find_bsf(9) but additionally takes a domain number argument
and limiting pci_find_bsf(9) to only search devices in domain 0 (the
only domain in single-domain systems). Bge(4) and ofw_pcibus(4) are
changed to use pci_find_dbsf(9) instead of pci_find_bsf(9) in order
to no longer report false positives when searching for siblings and
dupe devices in the same domain respectively.
Along with this change the sole host-PCI bridge driver converted to
actually make use of PCI domain support is uninorth(4), the others
continue to use domain 0 only for now and need to be converted as
appropriate later on.
Note that this means that the format of the location strings as used
by pciconf(8) has been changed and that consumers of <sys/pciio.h>
potentially need to be recompiled.

Suggested by:	jhb
Reviewed by:	grehan, jhb, marcel
Approved by:	re (kensmith), jhb (PCI maintainer hat)
2007-09-30 11:05:18 +00:00
Christian Brueffer
4fabde5686 Use the correct expanded name for SCTP.
PR:		116496
Submitted by:	koitsu
Reviewed by:	rrs
Approved by:	re (kensmith)
2007-09-26 20:05:07 +00:00
Alan Cox
7bfda801a8 Change the management of cached pages (PQ_CACHE) in two fundamental
ways:

(1) Cached pages are no longer kept in the object's resident page
splay tree and memq.  Instead, they are kept in a separate per-object
splay tree of cached pages.  However, access to this new per-object
splay tree is synchronized by the _free_ page queues lock, not to be
confused with the heavily contended page queues lock.  Consequently, a
cached page can be reclaimed by vm_page_alloc(9) without acquiring the
object's lock or the page queues lock.

This solves a problem independently reported by tegge@ and Isilon.
Specifically, they observed the page daemon consuming a great deal of
CPU time because of pages bouncing back and forth between the cache
queue (PQ_CACHE) and the inactive queue (PQ_INACTIVE).  The source of
this problem turned out to be a deadlock avoidance strategy employed
when selecting a cached page to reclaim in vm_page_select_cache().
However, the root cause was really that reclaiming a cached page
required the acquisition of an object lock while the page queues lock
was already held.  Thus, this change addresses the problem at its
root, by eliminating the need to acquire the object's lock.

Moreover, keeping cached pages in the object's primary splay tree and
memq was, in effect, optimizing for the uncommon case.  Cached pages
are reclaimed far, far more often than they are reactivated.  Instead,
this change makes reclamation cheaper, especially in terms of
synchronization overhead, and reactivation more expensive, because
reactivated pages will have to be reentered into the object's primary
splay tree and memq.

(2) Cached pages are now stored alongside free pages in the physical
memory allocator's buddy queues, increasing the likelihood that large
allocations of contiguous physical memory (i.e., superpages) will
succeed.

Finally, as a result of this change long-standing restrictions on when
and where a cached page can be reclaimed and returned by
vm_page_alloc(9) are eliminated.  Specifically, calls to
vm_page_alloc(9) specifying VM_ALLOC_INTERRUPT can now reclaim and
return a formerly cached page.  Consequently, a call to malloc(9)
specifying M_NOWAIT is less likely to fail.

Discussed with: many over the course of the summer, including jeff@,
   Justin Husted @ Isilon, peter@, tegge@
Tested by: an earlier version by kris@
Approved by: re (kensmith)
2007-09-25 06:25:06 +00:00
Attilio Rao
c8790f5d09 Fix some entries in the locks static table of witness.
In particular:
- smp_tlb_mtx is no longer used, so it is axed.
- smp rendezvous lock isn't really a leaf spin-mutex. Its bad placement in
  the table, however, has been the source of a false positive LOR reporting
  with the dt_lock.  However, smp rendezvous lock would have had sched_lock
  there for older lock, so it wasn't still a leaf lock.
- allpmaps is only used in ia32 architecture, so it is inserted in the
  appropriate stub.

Addictionally:
- kse_zombie_lock is no longer present, so its definition is axed out.
- zombie_lock doesn't need to have an exported symbol, so just let's it be
  declared as static.

Tested by: kris
Approved by: jeff (mentor)
Approved by: re
2007-09-20 20:38:43 +00:00
Konstantin Belousov
96a2b63525 Fill in cr2 in the signal context from ksi->ksi_addr.
Together with the sys/i386/i386/trap.c rev. 1.306 it fixes the PR.

Submitted by:	rdivacky
Suggested by:	jhb
Sponsored by:	Google Summer of Code 2007
PR:		kern/77710
Approved by:	re (kensmith)
2007-09-20 13:46:26 +00:00
David Malone
e4a76144d0 regen.
Approved by: re (kensmith)
2007-09-18 19:51:49 +00:00
David Malone
3ab8526963 The kernel version of Linux statfs64 is actually supposed to take
3 arguments, but we had forgotten the second argument. Also make the
Linux statfs64 struct depend on the architecture because it has an
extra 4 bytes padding on amd64 compared to i386.

The three argument fix is from David Taylor, the struct statfs64
stuff is my fault. With this patch I can install i386 Linux matlab
on an amd64 machine.

Submitted by: David Taylor <davidt_at_yadt.co.uk>
Approved by: re (kensmith)
2007-09-18 19:50:33 +00:00
Poul-Henning Kamp
f1be017900 Recognize the Soekris NET5501 and configure the error led.
Add watchdog(4) support by using the MFGPT0 in the Geode LX CX5536.
(Supported range: 2^30 .. 2^44 ns = 1s ... 5h)

Approved by:	re (bmah)
2007-09-18 09:19:44 +00:00
Peter Wemm
8bff6a112b Fix an undefined symbol that as/ld neglected to flag as a problem. It
was used in assembler code in such a way that no unresolved relocation
records were generated, so ld didn't flag the problem.   You can see
this with an 'nm' of the kernel.  There will be 'U MAXCPU' on SMP systems.

The impact of this is that the intrcount/intrnames arrays do not have
the intended amount of space reserved.  This could lead to interesting
problems due to the arrays being present in the middle of kernel code.
An overflow would be rather interesting as executable code would be used
as per-cpu incrementing interrupt counters.

This fixes it for now by exporting MAXCPU to the assembler.  A better fix
might be to define these data structures in C - they're only referenced
in the kernel from C code these days anyway.

Approved by:  re (kensmith)
2007-09-17 21:55:28 +00:00
Jeff Roberson
b61ce5b0e6 - Move all of the PS_ flags into either p_flag or td_flags.
- p_sflag was mostly protected by PROC_LOCK rather than the PROC_SLOCK or
   previously the sched_lock.  These bugs have existed for some time.
 - Allow swapout to try each thread in a process individually and then
   swapin the whole process if any of these fail.  This allows us to move
   most scheduler related swap flags into td_flags.
 - Keep ki_sflag for backwards compat but change all in source tools to
   use the new and more correct location of P_INMEM.

Reported by:	pho
Reviewed by:	attilio, kib
Approved by:	re (kensmith)
2007-09-17 05:31:39 +00:00
Attilio Rao
0b2e598c14 This is a follow-up, cleaning-up commit about recent changes involving
topology foo functions.
Working at the patch for topology problems in ia32/amd64 evicted some
problems regarding functions ordering in the SI_SUB_CPU family of
SYSINIT'ed subsystems.
In order to avoid problems with new modified to involved functions, a
correct ordering is not semantically specified for SI_SUB_CPU functions
(for a larger view of the issue please visit:
http://lists.freebsd.org/pipermail/freebsd-current/2007-July/075409.html )

Discussed with: peter
Tested by: kris, Rui Paulo <rpaulo@FreeBSD.org>
Approved by: jeff
Approved by: re
2007-09-11 22:54:09 +00:00
Yoshihiro Takahashi
7b226dfaa8 Fix a kernel panic due to a NULL pointer access on pc98.
When any PnP device exists, isa_release_resource() is called with no
activated resource.  So a bushandle is not allocated yet.

Approved by:	re (kensmith)
2007-09-01 12:18:28 +00:00
Konstantin Belousov
0e6ed4feab Regenerate.
Approved by:	re (kensmith)
2007-08-28 12:36:23 +00:00
Konstantin Belousov
b6e645c90f Implement fake linux sched_getaffinity() syscall to enable java to work
with Linux 2.6 emulation. This shall be reimplemented once FreeBSD gets
native scheduler affinity syscalls.

Submitted by:	rdivacky
Reviewed by:	jkim
Sponsored by:	Google Summer of Code 2007
Approved by:	re (kensmith)
2007-08-28 12:26:35 +00:00
Joseph Koshy
ea49750231 Assign sizes to assembly language support functions.
Approved by:	re (kensmith)
2007-08-22 05:06:14 +00:00
Joseph Koshy
298889efcb Define an END() macro for use in i386 and amd64 assembly code, akin
to the one available on the ia64, sparc64, and sun4v architectures.

Approved by:	re (kensmith)
2007-08-22 04:26:07 +00:00
Alan Cox
8beae25391 In general, when we map a page into the kernel's address space, we no
longer create a pv entry for that mapping.  (The two exceptions are
mappings into the kernel's exec and pipe submaps.)  Consequently, there is
no reason for get_pv_entry() to dig deep into the free page queues, i.e.,
use VM_ALLOC_SYSTEM, by default.  This revision changes get_pv_entry() to
use VM_ALLOC_NORMAL by default, i.e., before calling pmap_collect() to
reclaim pv entries.

Approved by:	re (kensmith)
2007-08-21 04:59:34 +00:00
Dag-Erling Smørgrav
83d18f2283 Add a driver for the on-die digital thermal sensor found on Intel Core
and newer CPUs (including Core 2 and Core / Core 2 based Xeons).  The
driver attaches to each cpu device and creates a sysctl node in that
device's sysctl context (dev.cpu.N.temperature).  When invoked, the
handler binds to the appropriate CPU to ensure a correct reading.

Submitted by:	Rui Paulo <rpaulo@fnop.net>
Sponsored by:	Google Summer of Code 2007
Tested by:	des, marcus, Constantine A. Murenin, Ian FREISLICH
Approved by:	re (kensmith)
MFC after:	3 weeks
2007-08-15 19:26:03 +00:00
Nate Lawson
3b3f28135f Add "show sysregs" command to ddb. On i386, this gives gdt, idt, ldt,
cr0-4, etc.  Support should be added for other platforms that have a
different set of registers for system use.

Loosely based on: OpenBSD
Approved by:	re
2007-08-09 20:14:35 +00:00
Peter Wemm
b7778ae08f Move mp_topology() from apic_init(i386) and apic_setup_local(amd64) to
cpu_start_mp().  This is after we have read the cpuid registers to
calculate the hyperthreading_cpus value for the sysctl that enables or
disables hyperthread cores.  Change mp_topology() to use that information
rather than trying to do it itself.

This solves the problem of ULE being incorrectly told that dual core
Athlon64 X2 or Operton cpus are hyperthreading cores.  At the very least,
we now have a single piece of code to identify hyperthreading.

Obtained from:  jhb
Approved by:  re (kensmith)
2007-08-02 21:17:58 +00:00
David Malone
9be70a793e It seems that some i386 mothermoards either do not implement the
day of week field correctly, or they remember bad values that are
written into the day of week field. For this reason, ignore the day
of week field when reading the clock on i386 rather than bailing if
it is set incorrectly.

Problems were seen on a number of platforms, including VMWare, qemu,
EPIA ME6000, Epox-3PTA and ABIT-SL30T.

This is a slightly different fix to that proposed by Ted in his PR,
but the same basic idea.

PR:		111117
Submitted by:	Ted Faber <faber@lunabase.org>
Approved by:	re (rwatson)
MFC after:	3 weeks
2007-07-27 09:34:42 +00:00
John Baldwin
de016534a8 If the trap number stored in the trapframe is corrupted into a negative
value, then we would use a negative index into the trap_msg[] array
resulting in a nested page fault.  Make the 'type' variable holding the
trap number unsigned to avoid this.

MFC after:	2 weeks
Approved by:	re (rwatson)
2007-07-26 15:32:55 +00:00
David Malone
6d8617d42a If clock_ct_to_ts fails to convert time time from the real time clock,
print a one line error message. Add some comments on not being able to
trust the day of week field (I'll act on these comments in a follow up
commit).

Approved by:	re
MFC after:	3 weeks
2007-07-23 09:42:32 +00:00
Attilio Rao
52739c2d25 i386_set_ioperm, i386_get_ldt and i386_set_ldt are now MPSAFE
(Giant/sched_lock free) so remove unuseful Giant cruft.

Approved by: jeff
Approved by: re
Sponsorized by: NGX Italy (http://www.ngx.it)
2007-07-20 08:35:18 +00:00
Jeff Roberson
56a114967b - Add support for blocking and releasing threads to i386 cpu_switch(). This
is required for per-cpu scheduler lock support.

Obtained from:	attilio
Tested by:	current@ many users
Approved by:	re
2007-07-17 22:34:14 +00:00
Matt Jacob
06b642b55d Remove the internal use of __packed and put it on the structures
themselves.

Reviewed by:	nate, peter, warner, robert
Approved by:	re (ken)
2007-07-11 22:34:34 +00:00
Attilio Rao
ea11c140d0 NULL_LDT_BASE is used in !SMP kernels too and set_user_ldt() is not
properly called. Address these two issues.

Reported by: Tinderbox
Tested by: le
Approved by: jeff (mentor)
Approved by: re
2007-07-08 18:17:42 +00:00
Nate Lawson
d73144e778 Now that we have a function that can be called from a cdevsw close()
entry point, use it.

Approved by:	re
2007-07-07 17:54:33 +00:00
Attilio Rao
05dfa22fe9 Actual code shows several problems in ia32 LDT handling:
- When a LDT entry changes, the old one is freed while it is still
  referenced by gdt and ldtr.  This can lead to disruptive behaviours in
  particular on SMP machines.
- When a LDT entry changes, it is assumed that the only one entity sharing
  the same LDT are threads in the same proc.  It doesn't take in account
  edge cases where two processes share the same VM (rfork'ed ones, for
  example).

This patch addresses these two problems and addictionally it fixes the
usage of refcount switching back it to the old manually-grown refcount
(since in this case would be faster).

Diagnosed by: tegge
Tested by: pho (a former version)
Reviewed by: kib
Approved by: jeff (mentor)
Approved by: re
2007-07-07 16:59:01 +00:00
Bjoern A. Zeeb
5b919cdc47 I4B header files were repo-copied from sys/i386/include/ to
sys/i4b/include/ so they will be available to all architectures
once I4B compiles on those.

Approved by:	re (kensmith)
2007-07-06 07:23:39 +00:00
Peter Wemm
e106f3d812 __packed has no effect on u_int8_t's except to cause a warning (and
never has had any effect).

Approved by:  re (rwatson)
2007-07-05 07:28:38 +00:00
Peter Wemm
b811e070b4 Remove pad argument from ftruncate wrapper. Oops.
Approved by: re (kensmith)
2007-07-05 05:32:44 +00:00
Peter Wemm
79d5bdcca5 Don't add the 'pad' argument to the mmap/truncate/etc syscalls.
Submitted by: kensmith
Approved by: re (kensmith)
2007-07-04 23:06:43 +00:00
Bjoern A. Zeeb
118043c6b1 Temporary disconnect i4bing, i4bisppp and i4bipr from the build for
the 7.0 timeframe.

This is needed because I4B is not locked and NET_NEEDS_GIANT goes away.

The plan is to lock I4B and bring everything back for 7.1.

Approved by:	re (kensmith)
2007-07-04 00:18:39 +00:00
Nate Lawson
a1ec53930b Revert previous commit, retaining cpufreq.
Approved by:	re (implicitly)
2007-07-01 22:19:20 +00:00
Nate Lawson
a7b811a620 Add cpufreq(4) to GENERIC. It does not change the frequency by default,
so systems should be relatively unaffected.  Users can then simply enable
powerd(8) in rc.conf to take advantage of it.

Approved by:	re
2007-07-01 21:47:45 +00:00
Alan Cox
ba4b85e482 Pages that do belong to an object and page queue can now be freed without
holding the page queues lock.  Thus, the page table pages released by
pmap_remove() and pmap_remove_pages() can be freed after the page queues
lock is released.

Approved by:	re (kensmith)
2007-07-01 07:08:26 +00:00