Commit Graph

10408 Commits

Author SHA1 Message Date
Alan Cox
f564b2d253 MFamd64 revision 1.526
When pmap_allocpte() destroys a 2/4MB "superpage" mapping it does not
 reduce the pmap's resident count accordingly.  It should.
2005-08-27 19:51:14 +00:00
John Baldwin
721be80c83 Remove the el(4) driver for 3Com 3c501 ISA NICs from HEAD as threatened
earlier as no one has stepped up to test recent changes to the driver.
Oddly, the module was actually turned on on ia64 though I'm fairly certain
that no ia64 machine has ever had or will ever have an ISA slot.

Axe borrowed from:	phk
2005-08-26 13:42:04 +00:00
Stefan Farfeleder
a1f85d7f83 Move MINSIGSTKSZ from <machine/signal.h> to <machine/_limits.h> and rename
it to __MINSIGSTKSZ.  Define MINSIGSTKSZ in <sys/signal.h>.

This is done in order to use MINSIGSTKSZ for the macro PTHREAD_STACK_MIN
in <pthread.h> (soon <limits.h>) without having to include the whole
<sys/signal.h> header.

Discussed with:		bde
2005-08-20 16:44:41 +00:00
Pawel Jakub Dawidek
a95452ee8d Avoid code duplication and implement bitcount32() function in systm.h only.
Reviewed by:	cperciva
MFC after:	3 days
2005-08-19 22:10:19 +00:00
Craig Rodrigues
a9d726bd18 Rename variables:
r_gdt -> saved_gdt
r_idt -> saved_idt
r_ldt -> saved_ldt

in order to prevent clashes with variables with same names
defined in <machine/segments.h>.  This fixes compilation of this
file with GCC 4.0.

Reviewed by:	njl
2005-08-18 00:28:25 +00:00
John Baldwin
c98ae70c21 Fix locking in el(4) and mark mpsafe.
- Add locked variants of el_init and el_start.
- Don't initialize the mutex and lock it during el_probe().
- Do initialize the mutex during attach.  (el_probe() did destroy the mutex
  to cleanup, so this meant the driver was always using a destroyed mutex
  when it was running.)
- Setup the interrupt handler after ether_ifattach().
- Fix locking in el_detach() and el_ioctl().

Note: Since I couldn't actually find anyone with this hardware, I'm going
ahead and committing these changes so they won't be lost.  I'll remove the
driver in a week (real purpose of the MFC after below) unless someone pipes
up to test this.

MFC after:	1 week
Tested by:	gcc(1)
2005-08-17 17:36:47 +00:00
John Baldwin
207377b25e Clarify a comment. 2005-08-16 18:15:17 +00:00
Alan Cox
96e5109430 Simplify the page table page reference counting by pmap_enter()'s change of
mapping case.

Eliminate a stale comment from pmap_enter().

Reviewed by:	tegge
2005-08-14 20:02:50 +00:00
Alan Cox
50b334506f Eliminate unneeded diagnostic code.
Eliminate an unused #include.  (Kernel stack allocation and deallocation
long ago migrated to the machine-independent code.)
2005-08-11 23:38:02 +00:00
Alan Cox
b69dd0fda6 Eliminate unneeded diagnostic code.
Reviewed by:	tegge
2005-08-11 17:43:28 +00:00
Alan Cox
8e7a85fac9 Decouple the unrefing of a page table page from the removal of a pv entry.
In other words, change pmap_remove_entry() such that it no longer unrefs
the page table page.  Now, it only removes the pv entry.

Reviewed by:	tegge
2005-08-11 02:22:55 +00:00
Robert Watson
13f4c340ae Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
ifnet.if_drv_flags.  Device drivers are now responsible for
synchronizing access to these flags, as they are in if_drv_flags.  This
helps prevent races between the network stack and device driver in
maintaining the interface flags field.

Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
some less so.

Reviewed by:	pjd, bz
MFC after:	7 days
2005-08-09 10:20:02 +00:00
Alan Cox
5f2c46d5ed When support for 2MB/4MB pages was added in revision 1.148 an error was
made in pmap_protect(): The pmap's resident count should not be reduced
unless mappings are removed.

The errant change to the pmap's resident count could result in a later
pmap_remove() failing to remove any mappings if the errant change has set
the pmap's resident count to zero.
2005-08-07 22:00:47 +00:00
David Xu
db12d03ed9 Revert last change, I will turn ULE on as default after 6.0-R.
Noticed by: scottl
2005-08-06 23:05:48 +00:00
David Xu
dd34f92b7f Make ULE as default scheduler, allow it to be tested more widely. 2005-08-06 10:31:27 +00:00
Anton Berezin
b2905271b3 Make kernel build suceed when with "options CPU_DISABLE_SSE".
PR:		84010
Submitted by:	Sergey Gluschenko <deen@freebsd.org.ua>
MFC after:	1 week
2005-08-04 12:39:43 +00:00
Jeff Roberson
8d511e2a05 - Add support for saving stack traces and displaying them via printf(9)
and KTR.

Contributed by:		Antoine Brodin <antoine.brodin@laposte.net>
Concept code from:	Neal Fachan <neal@isilon.com>
2005-08-03 04:27:40 +00:00
Maxim Sobolev
c035ac04e6 Propagate error code of kern_execve() to the caller properly.
PR:		81670
Submitted by:	Andrew Bliznak <andriko.b@gmail.com>
Pointy hat to:	sobomax
2005-08-01 17:35:48 +00:00
Colin Percival
a26ee70316 Print cpu_vendor and the MSR value if we don't support this processor
even though we're not asking people to contact us.

Requested by:	njl
2005-07-31 06:42:27 +00:00
Colin Percival
1c16098210 Remove the instruction to "contact the maintainer" for unrecognized
CPUs.  Intel refuses to give me the information I need, and getting
more emails about this doesn't help.
2005-07-31 01:57:05 +00:00
John Baldwin
ec1f24a934 Add missing dependencies on the SYSVIPC modules. 2005-07-29 19:41:04 +00:00
John Baldwin
813a5e14ec Move MODULE_DEPEND() statements for SYSVIPC dependencies to linux_ipc.c
so that they aren't duplicated 3 times and are also in the same file as
the code that depends on the SYSVIPC modules.
2005-07-29 19:40:39 +00:00
John Baldwin
bca7902961 Fix a bug in pmap_protect() in the PAE case where it would try to look up
the vm_page_t associated with a pte using only the lower 32-bits of the pte
instead of the full 64-bits.

Submitted by:	Greg Taleck greg at isilon dot com
Reviewed by:	jeffr, alc
MFC after:	3 days
2005-07-29 19:03:44 +00:00
John Baldwin
8c216f9e55 Add a tunable 'hw.apic.enable_extint' that can be set from the loader to
not mask the ExtINT pin on the first I/O APIC as at least one PIII chipset
seems to need this even though all of the pins in the 8259A's are masked.
The default is still to mask the ExtINT pin.

Reported by:	Mike Tancsa mike at sentex.net
MFC after:	3 days
2005-07-29 18:58:33 +00:00
R. Imura
0a78d39a55 Don't compile ral and ural in the PAE kernel, because
they have dependency on wlan and usb.

Reported by:	make universe
2005-07-28 22:25:07 +00:00
Nate Lawson
76f6fe4f31 Rewrite the acpi_battery interface to allow for other battery types
(i.e., smart battery) and fix various bugs found during the cleanup.

API changes:
* kernel access:
Access to individual batteries is now via devclass_find("battery").
Introduce new methods ACPI_BATT_GET_STATUS (for _BST-formatted data) and
ACPI_BATT_GET_INFO (for _BIF-formatted data).  The helper function
acpi_battery_get_battinfo() now takes a device_t instead of a unit #
argument.  If dev is NULL, this signifies all batteries.

* ioctl access:
The ACPIIO_BATT_GET_TYPE and ACPIIO_BATT_GET_BATTDESC ioctls have been
removed.  Since there is now no need for a mapping between "virtual" unit
and physical unit, usermode programs can just specify the unit directly and
skip the old translation steps.  In fact, acpiconf(8) was actually already
doing this and virtual unit was the same as physical unit in all cases
since there was previously only one battery type (acpi_cmbat).  Additionally,
we now map the ACPIIO_BATT_GET_BIF and ACPIIO_BATT_GET_BST ioctls for all
batteries, if they provide the associated methods.

* apm compatibility device/ioctls:  no change
* sysctl:  no change

Since most third-party applications use the apm(4) compat interface, there
should be very few affected applications (if any).

Reviewed by:	bruno
MFC after:	5 days
2005-07-23 19:36:00 +00:00
Ruslan Ermilov
68f88450a7 Fix build (including both asm.h and asmacros.h is evil). 2005-07-22 15:01:07 +00:00
Poul-Henning Kamp
636d90fc5c Make the facility for recognizing BIOS-signatures more general
and return a printable representation.

This fixes recognition of the PC Engines WRAP and improves the
recognition of the Soekris boards (Bios version can now be
seen in the dmesg output for instance).

Also, add watchdog support for PCM-582x platforms.

Submitted by:	Adrian Steinmann <ast@marabu.ch>
Slightly changed by:	phk
PR:	81360
2005-07-21 09:48:37 +00:00
Jung-uk Kim
a52daa5fd2 Fix smbios(4) and add support for amd64
Approved by:	anholt (mentor)
2005-07-21 00:18:28 +00:00
Eric Anholt
af088425f7 Add the latest r300 code from r300.sf.net. This is based on the patch supplied
by Vladimir Dergachev for inclusion in DRM CVS, with minor modifications for
FreeBSD CVS and the appropriate license from Nicolai Haehnle on r300_reg.h.
Fixes hangs when using r300.sf.net userland, tested on a Radeon 9600 on amd64.
2005-07-20 21:10:57 +00:00
Matthew N. Dodd
56c2b57a2d Add entries for smbios, smapi and vpd drivers. 2005-07-20 16:57:53 +00:00
John Baldwin
122eceef61 Convert the atomic_ptr() operations over to operating on uintptr_t
variables rather than void * variables.  This makes it easier and simpler
to get asm constraints and volatile keywords correct.

MFC after:	3 days
Tested on:	i386, alpha, sparc64
Compiled on:	ia64, powerpc, amd64
Kernel toolchain busted on:	arm
2005-07-15 18:17:59 +00:00
Ken Smith
22e59cec3b Add recently invented COMPAT_FREEBSD5 option.
MFC after:	3 days
2005-07-14 15:39:06 +00:00
John Baldwin
ac5ee935dd Regen. 2005-07-13 20:35:09 +00:00
John Baldwin
8683e7fdc1 Make a pass through all the compat ABIs sychronizing the MP safe flags
with the master syscall table as well as marking several ABI wrapper
functions safe.

MFC after:	1 week
2005-07-13 20:32:42 +00:00
John Baldwin
db015a9153 Fixup some more fallout from the lapic/i8254 changes:
- Make sure timer0_max_count is set to a correct value in the lapic case.
- Revert i8254_restore() to explicitly reprogram timer 0 rather than
  calling set_timer_freq() to do it.  set_timer_freq() only reprograms
  the counter if the max count changes which it never does on resume.  This
  unbreaks suspend/resume for several people.

Tested by:	marks, others
Reviewed by:	bde
MFC after:	3 days
2005-07-13 15:43:21 +00:00
John Baldwin
11f3a4f069 - Ignore BIOS IRQs (that is, IRQ settings left by the BIOS or a previous OS
in the PCI config registers) that are > 15 as $PIR can only route PCI
  interrupts to ISA IRQs which are limited to the 0 to 15 range.
- Remove an extra word from a printf.

Reported by:	othermark atkin901 at yahoo dot com
MFC after:	3 days
2005-07-13 15:41:16 +00:00
Joseph Koshy
58375c8192 Use an interrupt gate for the NMI handler and prevent too-early
enabling of interrupts inside of trap().  Fix a typo in a comment.

Revert rev 1.113 of "sys/i386/i386/exception.s" as it is no longer
needed.

Reviewed by:	bde
MFC after:	3 days
2005-07-13 11:32:10 +00:00
David Xu
740fd64d65 Validate if the value written into {FS,GS}.base is a canonical
address, writting non-canonical address can cause kernel a panic,
by restricting base values to 0..VM_MAXUSER_ADDRESS, ensuring
only canonical values get written to the registers.

Reviewed by: peter, Josepha Koshy < joseph.koshy at gmail dot com >
Approved by: re (scottl)
2005-07-10 23:31:11 +00:00
Joseph Koshy
151a683010 Have the NMI handler call the C language trap() routine and directly
exit via 'doreti_exit'.

Since the NMI interrupt may be taken at any time, including when
the processor has masked external interrupts, it is not safe to
call ast() as is done for normal interrupts.

Approved by:	re (scottl)
2005-07-09 17:19:46 +00:00
John Baldwin
48281036d7 Some cleanups and tweaks to some of the atomic.h files in preparation for
further changes and fixes in the future:
- Use aliases via macros rather than duplicated inlines wherever possible.
- Move all the aliases to the bottom of these files and the inline
  functions to the top.
- Add various comments.
- On alpha, drop atomic_{load_acq,store_rel}_{8,char,16,short}().
- On i386 and amd64, don't duplicate the extern declarations for functions
  in the two non-inline cases (KLD_MODULE and compiler doesn't do inlines),
  instead, consolidate those two cases.
- Some whitespace fixes.

Approved by:	re (scottl)
2005-07-09 12:38:53 +00:00
John Baldwin
a3b324f003 Lock Giant around a call to userland_sysctl() in ibcs2_sysi86().
Approved by:	re (scottl)
2005-07-07 19:30:30 +00:00
John Baldwin
e9ccc53c63 Remove an extra call to read() in ibcs2_read() that can never be reached.
(It's already called a few lines earlier.)

Approved by:	re (scottl)
2005-07-07 19:29:42 +00:00
John Baldwin
92df1b8f6f Conditionally acquire Giant around the ISC and Xenix system calls based
on the SYF_MPSAFE flag in the wrapper system calls for the ISC and Xenix
system call vectors.

Approved by:	re (scottl)
2005-07-07 19:28:55 +00:00
John Baldwin
623b1a868e Remove a || 1 that crept into the i8254 commit and was subsequently
copied and pasted.  I had actually tested without this change in my
trees as had the other testers.

Reported by:	bde, Rostislav Krasny rosti dot bsd at gmail dot com
Approved by:	re (scottl)
Pointy hat to:	jhb
2005-07-05 20:13:12 +00:00
Andrew Thompson
2fcb030ad5 Check the alignment of the IP header before passing the packet up to the
packet filter. This would cause a panic on architectures that require strict
alignment such as sparc64 (tier1) and ia64/ppc (tier2).

This adds two new macros that check the alignment, these are compile time
dependent on __NO_STRICT_ALIGNMENT which is set for i386 and amd64 where
alignment isn't need so the cost is avoided.

 IP_HDR_ALIGNED_P()
 IP6_HDR_ALIGNED_P()

Move bridge_ip_checkbasic()/bridge_ip6_checkbasic() up so that the alignment
is checked for ipfw and dummynet too.

PR:		ia64/81284
Obtained from:	NetBSD
Approved by:	re (dwhite), mlaier (mentor)
2005-07-02 23:13:31 +00:00
Xin LI
60baed3742 Remove the CPU_ENABLE_SSE option from the i386 and pc98 architectures,
as they are already default for I686_CPU for almost 3 years, and
CPU_DISABLE_SSE always disables it.  On the other hand, CPU_ENABLE_SSE
does not work for I486_CPU and I586_CPU.

This commit has:
	- Removed the option from conf/options.*
	- Removed the option and comments from MD NOTES files
	- Simplified the CPU_ENABLE_SSE ifdef's so they don't
	  deal with CPU_ENABLE_SSE from kernel configuration. (*)

For most users, this commit should be largely no-op.  If you used to
place CPU_ENABLE_SSE into your kernel configuration for some reason,
it is time to remove it.

(*) The ifdef's of CPU_ENABLE_SSE are not removed at this point, since
    we need to change it to !defined(CPU_DISABLE_SSE) && defined(I686_CPU),
    not just !defined(CPU_DISABLE_SSE), if we really want to do so.

Discussed on:	-arch
Approved by:	re (scottl)
2005-07-02 20:06:44 +00:00
Marcel Moolenaar
5116398a06 Fix a buglet that was present in the ia64 code and that got inherited
by amd64 and i386: For buffered writes we collect data and write it
out a ${DEV_BSIZE}-sized block at a time. The fragsz variable is used
to keep track of how much data we have collected in the buffer so far
and it's reset to zero immediately after writing a block to the dump
device.
When the last, possibly partially filled buffer is flushed, we didn't
reset fragsz to 0 and as such would stop reflecting reality. Since we
currently only need to do buffered writes once, this isn't a problem.
However, when kernel dumps are made by hand (say by callling doadump
from within DDB), the improperly cleared state from the first call to
dumpsys causes the next call to dumpsys to create an invalid code file.
This change resets fragsz after flushing the partially filled buffer so
that it fixes the two problems at once.

Approved by: re (scottl)
2005-07-02 19:57:31 +00:00
John Baldwin
7df0015945 Use a simpler implementation for the i8254 timecounter when using the lapic
timer since irq0 isn't being driven at hz in that case and we don't need to
try to handle edge cases with rollover, etc. that require irq0 to be firing
for the timecounter to actually work.

Submitted by:	phk
Tested by:	schweikh
Approved by:	re (scottl)
2005-07-01 15:47:27 +00:00
Peter Wemm
d14b395392 Begin promoting the AMD-originated feature flags to first class flags, now
that newer Intel cpu hardware implements them too.  This includes things
like the NX (pte no-execute) flag for execute protection.  We'll need to
reference this for implementing no-exec in pmap.c at some point.

Some feature flags are duplicated in both the Intel-orignated bits and
the AMD bits.  Suppress the the duplicates correctly - the old code
assumed they were a 1:1 mapping which is not correct.  We can't just mask
off the bits present in cpu_feature.

Converge with amd64 where this originated from.

Intel cpu's that implement any AMD features will report them in dmesg now.

Approved by:	re
2005-06-30 06:44:34 +00:00