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Commit Graph

9305 Commits

Author SHA1 Message Date
Matthew N. Dodd
50e960d918 - Move driver to newbus.
- Provide identify methods for EtherExpress and 3c507 cards; this
  means these cards no longer need wired configs.
- Provide a detach method.
2003-03-29 13:36:41 +00:00
Matthew N. Dodd
3330d5fb09 - Change ELINK_ID_PORT; the 3c507 likes 0x100 better.
- Add module metadata.
2003-03-29 13:18:20 +00:00
John Baldwin
0f9d6538bb Add missing includes from previous commit.
Reported by:	des
2003-03-27 18:18:35 +00:00
Paul Saab
90836fcf7d Nuke HTT from here too.
Spotted by:	jhb
2003-03-26 19:55:03 +00:00
Paul Saab
87437b0b89 Nuke options HTT infavor of machdep.hlt_logical_cpus tunable/sysctl.
This keeps the logical cpu's halted in the idle loop.  By default
the logical cpu's are halted at startup.  It is also possible to
halt any cpu in the idle loop now using machdep.hlt_cpus.

Examples of how to use this:
machdep.hlt_cpus=1	halt cpu0
machdep.hlt_cpus=2	halt cpu1
machdep.hlt_cpus=4	halt cpu2
machdep.hlt_cpus=3	halt cpu0,cpu1

Reviewed by:	jhb, peter
2003-03-26 19:49:34 +00:00
Peter Wemm
bb9cca1c2f Halt the cpus in the idle loop for SMP as well for several reasons:
1) Its critical for HTT.  There's less foot-shooting opportunity.
2) I've seen significant improvements in interactive response to commands
over ssh sessions.  I assume this is less lock contention.
3) As incentive to finish the idle cpu IPI wakeup stuff.
4) The machine on my desk was blowing hot air in my general direction
because somebody forgot to turn the hlt on, and it saves 50 watts per
cpu..

The machdep.cpu_idle_hlt sysctl is still available, but now the default
is the same as on UP kernels.
2003-03-26 19:40:29 +00:00
John Baldwin
35eb8c5aa2 Add a cleanup function to destroy the osname_lock and call it on module
unload.

Submitted by:	gallatin
Reported by:	Martin Karlsson <mk-freebsd@bredband.net>
2003-03-26 18:29:44 +00:00
John Baldwin
84b7dcad85 Add an options entry for HTT in SMP and GENERIC similar to the SMP and
APIC_IO options.

Requested by:	John Cagle <john.cagle@hp.com>
2003-03-25 23:31:14 +00:00
John Baldwin
c0109e50ec Put a newline in between APIC_IO and HTT to try and show that HTT is not
mandatory.
2003-03-25 23:29:44 +00:00
Matthew N. Dodd
91d631e536 Print the return value from mmap() in the DEBUG case. 2003-03-25 20:02:55 +00:00
Matthew N. Dodd
94c35e0af2 Merge PC98 support. 2003-03-25 05:19:18 +00:00
Jake Burkholder
227f9a1c58 - Add vm_paddr_t, a physical address type. This is required for systems
where physical addresses larger than virtual addresses, such as i386s
  with PAE.
- Use this to represent physical addresses in the MI vm system and in the
  i386 pmap code.  This also changes the paddr parameter to d_mmap_t.
- Fix printf formats to handle physical addresses >4G in the i386 memory
  detection code, and due to kvtop returning vm_paddr_t instead of u_long.

Note that this is a name change only; vm_paddr_t is still the same as
vm_offset_t on all currently supported platforms.

Sponsored by:	DARPA, Network Associates Laboratories
Discussed with:	re, phk (cdevsw change)
2003-03-25 00:07:06 +00:00
Matthew N. Dodd
257427efe3 Retire sys/pc98/pc98/spkr.c 2003-03-24 21:01:54 +00:00
Matthew N. Dodd
1352a54255 Use __packed; 2003-03-24 20:44:39 +00:00
Matthew N. Dodd
a954a4fba0 Correct a mis-merge.
Noticed by:	 johan
2003-03-24 19:54:14 +00:00
Matthew N. Dodd
96aa42527e - Consolidate smapi driver.
- Attach to nexus.
- Use null{open,close}() instead of rolling our own.
2003-03-24 19:40:54 +00:00
Matthew N. Dodd
863463c1cb Add the 'vpd' and 'smbios' drivers. The 'smbios' driver is just a
stub right now.
2003-03-24 19:32:57 +00:00
Matthew N. Dodd
b7b5ae3edb Use repo-copied files in sys/i386/bios. 2003-03-24 19:14:46 +00:00
Bruce Evans
f261b1f35f Disable interrupts while in kdb_trap() to handle cases where the caller
doesn't do it.  This fixes all known causes of "Context switches not
allowed in the debugger" in mi_switch().  The main cause was trap_fatal()
calling kdb_trap() with interrupts enabled.  Switching to ithreads for
interrupt handling then made fatal traps more fatal and harder to debug.
The problem was limited in -current because most interrupt handlers are
blocked by Giant, but it occurred almost deterministically for me because
my clock interrupt handlers are non-fast and not blocked by Giant.
2003-03-24 10:17:14 +00:00
Ruslan Ermilov
ab0f83bd03 Remove bitrot associated with `maxusers'.
Submitted by:	bde
2003-03-22 14:18:23 +00:00
John Baldwin
43cf129c99 Sync up linux and svr compat elf fixup functions for exec(). These
functions are now all basically identical except that alpha linux uses
Elf64 arguments and svr4 and i386 linux use Elf32.  The fixups include
changing the first argument to be a register_t ** to match the prototype
for fixup functions, asserting that the process in the image_params struct
is always curproc and removing unnecessary locking to read credentials as a
result, and a few style fixes.
2003-03-21 19:49:34 +00:00
Matthew N. Dodd
868d8b6286 - Use if_broadcastaddr from struct ifnet rather than relying on
extern 'etherbroadcastaddr'.
- Make 'etherbroadcastaddr' static.

Reviewed by:	 imp
2003-03-21 17:53:16 +00:00
David Malone
0036341d93 Extend CPU_ATHLON_SSE_HACK to cover a few more revisions of Athlon CPUs.
Submitted by: Jon Kuster <kwsn@earthlink.net>
MFC after:    2 weeks
2003-03-20 20:50:22 +00:00
Maxime Henrion
fd1b2ab0c9 Use atomic operations to increment and decrement the refcount
in busdma tags.  There are currently no tags shared accross
different drivers so this isn't needed at the moment, but it
will be required when we'll have a proper newbus method to get
the parent busdma tag.
2003-03-20 19:45:26 +00:00
Poul-Henning Kamp
b4b138c27f Including <sys/stdint.h> is (almost?) universally only to be able to use
%j in printfs, so put a newsted include in <sys/systm.h> where the printf
prototype lives and save everybody else the trouble.
2003-03-18 08:45:25 +00:00
John Baldwin
a480c73063 Expand the APIC ID mask field of the ICR register to 8 bits intead of just
4 bits.  This reportedly fixes booting on the SW7500CW2.  Much thanks to
the submitter for tracking this down!

Submitted by:	Brian Buchanan <brian@ncircle.com>
Reviewed by:	peter
MFC after:	3 days
2003-03-17 19:14:13 +00:00
Maxime Henrion
cab2362883 - Lock down the bounce pages structures. We use the same locking scheme
as with the alpha backend because both implementations of bounce pages
  are identical.
- Remove useless splhigh()/splx() calls.
2003-03-17 18:34:34 +00:00
Jake Burkholder
5501d40bb9 Made the prototypes for pmap_kenter and pmap_kremove MD. These functions
are machine dependent because they are not required to update the tlb when
mappings are added or removed, and doing so is machine dependent.
In addition, an implementation may require that pages mapped with pmap_kenter
have a backing vm_page_t, which is not necessarily true of all physical
pages, and so may choose to pass the vm_page_t to pmap_kenter instead of the
physical address in order to make this requirement clear.
2003-03-16 04:16:03 +00:00
Maxime Henrion
c0796d1cb4 Grab Giant around calls to contigmalloc() and contigfree() so
that drivers converted to be MP safe don't have to deal with it.
2003-03-13 17:18:48 +00:00
Jake Burkholder
4d3f408cee - Added support for multiple page directory pages to pmap_pinit and
pmap_release.
- Merged pmap_release and pmap_release_free_page.  When pmap_release is
  called only the page directory page(s) can be left in the pmap pte object,
  since all page table pages will have been freed by pmap_remove_pages and
  pmap_remove.  In addition, there can only be one reference to the pmap and
  the page directory is wired, so the page(s) can never be busy.  So all there
  is to do is clear the magic mappings from the page directory and free the
  page(s).

Sponsored by:	DARPA, Network Associates Laboratories
2003-03-12 07:38:37 +00:00
Jake Burkholder
2089c5c95e Use bus_space_handle_t to represent host port and virtual addresses;
bus_addr_t may not be appropriate.

Sponsored by:	DARPA, Network Associates Laboratories
2003-03-11 19:43:38 +00:00
Poul-Henning Kamp
d42ee4e410 Note that MAJOR_AUTO is now the default if d_maj is not initialized. This
is more robust and prevents the hijacking of /dev/console for the typical
mistake.

Remove unneeded MAJOR_AUTO uses, it is only needed explicitly now if the
driver source has cross-branch compatibility to old releases.
2003-03-09 11:03:45 +00:00
Eric Anholt
43e2d1e384 Update the DRM to latest from DRI CVS. This is approximately the version
included in XFree86 4.3, but includes some fixes.  Notable changes include
Radeon 8500-9100 support, PCI Radeon/Rage 128 support, transform & lighting
support for Radeons, and vblank syncing support for r128, radeon, and mga.
The gamma driver was removed due to lack of any users.
2003-03-09 02:08:30 +00:00
David Xu
1108975fe0 Initialize eflags in fake frame to default value rather than random one.
The random value sometimes causes macro CLKF_USERMODE to return true
because PSL_VM bit is set and really shoudn't be, this causes statclock()
to execute in wrong path, and further breaks KSE code and kernel crashes
when executing threaded program.
2003-03-08 03:58:50 +00:00
Robert Watson
9283578946 Instrument sysarch() MD privileged I/O access interfaces with a MAC
check, mac_check_sysarch_ioperm(), permitting MAC security policy
modules to control access to these interfaces.  Currently, they
protect access to IOPL on i386, and setting HAE on Alpha.
Additional checks might be required on other platforms to prevent
bypass of kernel security protections by unauthorized processes.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2003-03-06 04:47:47 +00:00
Peter Wemm
3c6b084e96 Finish driving a stake through the heart of netns and the associated
ifdefs scattered around the place - its dead Jim!

The SMB stuff had stolen AF_NS, make it official.
2003-03-05 19:24:24 +00:00
David Schultz
9c62b3ee7c Make TTYHOG tunable.
Reviewed by:	mike (mentor)
2003-03-05 08:16:29 +00:00
John Baldwin
263067951a Replace calls to WITNESS_SLEEP() and witness_list() with equivalent calls
to WITNESS_WARN().
2003-03-04 21:03:05 +00:00
John Baldwin
d7a715dc64 Wrap the hyperthreading support code with the HTT kernel option.
Hyperthreading support is now off unless the HTT option is added.

MFC-after:	3 days
2003-03-04 20:24:53 +00:00
Poul-Henning Kamp
182a9f7455 Make nokqfilter() return the correct return value.
Ditch the D_KQFILTER flag which was used to prevent calling NULL pointers.
2003-03-03 16:24:47 +00:00
Poul-Henning Kamp
7ac40f5f59 Gigacommit to improve device-driver source compatibility between
branches:

Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.

This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.

Approved by:    re(scottl)
2003-03-03 12:15:54 +00:00
Dag-Erling Smørgrav
1d062e2be8 Clean up whitespace and remove register keyword. 2003-03-03 09:17:12 +00:00
Dag-Erling Smørgrav
4b7ef73d71 More caddr_t removal, in conjunction with copy{in,out}(9) this time.
Also clean up some egregious casts and incorrect use of sizeof.
2003-03-03 09:14:26 +00:00
Dag-Erling Smørgrav
521f364b80 More low-hanging fruit: kill caddr_t in calls to wakeup(9) / [mt]sleep(9). 2003-03-02 16:54:40 +00:00
Poul-Henning Kamp
32f034faca Add support for the Elan CPU hardware watchdog used in "active" mode. 2003-02-27 21:13:08 +00:00
John Baldwin
295435632d Expand some #ifdef's to fix I386_CPU compile.
Reported by:	Andy Farkas <andyf@speednet.com.au>
2003-02-27 20:38:48 +00:00
Alan Cox
8480cd45a5 Remove some long unused declarations. (For example, the PV flags have not
been used since revision 1.8, roughly nine years ago.)
2003-02-27 20:13:20 +00:00
Poul-Henning Kamp
f85c6d3502 Use MAJOR_AUTO. 2003-02-27 15:05:28 +00:00
Poul-Henning Kamp
4c61f9036b NODEVFS cleanup:
Don't call devsw_{add,delete}().
These two drivers are actually broken, and have been for quite some time.
2003-02-27 07:36:03 +00:00
Julian Elischer
ac2e415327 Change the process flags P_KSES to be P_THREADED.
This is just a cosmetic change but I've been meaning to do it for about a year.
2003-02-27 02:05:19 +00:00
Ruslan Ermilov
824018495d Implemented "nooption" and "nomakeoption" config(8) tokens.
Fixed memory leak in the "nodevice" option implementation.

Use these instead of sed(1) in MD NOTES.

Use a single makefile (sys/conf/makeLINT.mk) to generate
LINT for all architectures.  (Previous versions missed
the LINT dependency on Makefile, and i386 version also
missed the dependency on ${NOTES}.)

Fixed bugs in the previous NOTES conversion using the
"nodevice" token and sed(1):

- i386 LINT lost "device pst".

- pc98 LINT lost SC_*, MAXCONS and KBD_DISABLE_KEYMAP_LOAD
  options, and got needless DPT_* options.

- Added nooptions PPC_DEBUG, PPC_PROBE_CHIPSET, KBD_INSTALL_CDEV
  to sparc64 LINT so that it has a chance to config(8).

This basically returns us to where we were before.
2003-02-26 23:36:59 +00:00
Poul-Henning Kamp
f400e58886 msg 2003-02-26 21:01:26 +00:00
Poul-Henning Kamp
109a8a2e47 NODEVFS cleanup: Create devices with make_dev() instead of cdevsw_add() 2003-02-26 20:54:46 +00:00
David Xu
f5044aeb45 Better to not know anything about KSE. 2003-02-26 05:47:25 +00:00
Maxime Henrion
f6c912dd0c Correctly set BUS_SPACE_MAXSIZE in all the busdma backends.
It was bogusly set to 64 * 1024 or 128 * 1024 because it was
bogusly reused in the BUS_DMAMAP_NSEGS definition.
2003-02-26 02:16:06 +00:00
David E. O'Brien
6e818956c5 Move most everything back to a MI NOTES, and use "nodevice" in MD NOTES
Where needed.  Use 'sed' for now in place of "nooptions".  Add a sparc64
MD NOTES.

Reviewed by:	arch@
2003-02-25 20:59:23 +00:00
Jake Burkholder
0f1a7e05a2 - Added inlines pmap_is_current, pmap_is_alternate and pmap_set_alternate
for testing and setting the current and alternate address spaces.
- Changed PTDpde and APTDpde to arrays to support multiple page directory
  pages.

ponsored by:	DARPA, Network Associates Laboratories
2003-02-25 19:40:21 +00:00
David Xu
d9b05fa0b0 Remove an unsafe KASSERT. 2003-02-25 11:23:17 +00:00
Maxime Henrion
07159f9c56 Cleanup of the d_mmap_t interface.
- Get rid of the useless atop() / pmap_phys_address() detour.  The
  device mmap handlers must now give back the physical address
  without atop()'ing it.
- Don't borrow the physical address of the mapping in the returned
  int.  Now we properly pass a vm_offset_t * and expect it to be
  filled by the mmap handler when the mapping was successful.  The
  mmap handler must now return 0 when successful, any other value
  is considered as an error.  Previously, returning -1 was the only
  way to fail.  This change thus accidentally fixes some devices
  which were bogusly returning errno constants which would have been
  considered as addresses by the device pager.
- Garbage collect the poorly named pmap_phys_address() now that it's
  no longer used.
- Convert all the d_mmap_t consumers to the new API.

I'm still not sure wheter we need a __FreeBSD_version bump for this,
since and we didn't guarantee API/ABI stability until 5.1-RELEASE.

Discussed with:		alc, phk, jake
Reviewed by:		peter
Compile-tested on:	LINT (i386), GENERIC (alpha and sparc64)
Runtime-tested on:	i386
2003-02-25 03:21:22 +00:00
Jake Burkholder
5cd612b27e - Removed UMAXPTDI and UMAXPTEOFF.
- Changed VM_MAXUSER_ADDRESS to be defined in terms of PTDPTDI.  In order for
  assumptions about the recursive page table map to work it must be the base
  of the recursive map.  Any pte offset that's not NPTEPG will break these
  assumptions.

Sponsored by:	DARPA, Network Associates Laboratories
2003-02-24 20:29:52 +00:00
Alexander Kabaev
ba873f4c18 Correctly map SIGSYS signal to/from Linux.
Submitted by:   "Georg-W. Koltermann" <g.w.k@web.de>
2003-02-24 16:16:45 +00:00
Yoshihiro Takahashi
2302407b21 The mpbiosreason variable does not used for pc98. 2003-02-24 14:36:03 +00:00
Jake Burkholder
28c9e1aa5c Use the direct mapping of IdlePTD setup in locore for proc0's page directory,
instead of allocating another page of kva and mapping it in again.  This was
likely an oversight in revision 1.174 (cut and paste from pmap_pinit).

Discussed with:	peter, tegge
Sponsored by:	DARPA, Network Associates Laboratories
2003-02-24 00:39:50 +00:00
Tor Egge
07d2563244 Allow machines with one CPU and a valid mp table to boot an SMP kernel. 2003-02-23 23:49:57 +00:00
Jake Burkholder
ef49a94104 Previous commit missed a 1 that should be NGPTD, and an NPDEPG that should
be NPDEPTD.  Grumble.

Sponsored by:	DARPA, Network Associates Laboratories
2003-02-23 22:12:08 +00:00
Jake Burkholder
910548dea7 - Added macros NPGPTD, NBPTD, and NPDEPTD, for dealing with the size of the
page directory.
- Use these instead of the magic constants 1 or PAGE_SIZE where appropriate.
  There are still numerous assumptions that the page directory is exactly
  1 page.

Sponsored by:	DARPA, Network Associates Laboratories
2003-02-23 21:20:00 +00:00
Yoshihiro Takahashi
a0450500b3 Move MD devices to <machine>/conf/NOTES. 2003-02-23 13:32:33 +00:00
Jake Burkholder
e29632c9e1 - Added macros PDESHIFT and PTESHIFT, use these instead of magic constants
in locore.
- Removed the macros PTESIZE and PDESIZE, use sizeof instead in C.

Sponsored by:	DARPA, Network Associates Laboratories
2003-02-23 09:45:50 +00:00
Alan Cox
01a06ce250 The root of the splay tree maintained within the pm_pteobj always refers
to the last accessed pte page.  Thus, the pm_ptphint is redundant and can
be removed.
2003-02-22 23:43:08 +00:00
Jake Burkholder
d44f8f150c unsigned -> pt_entry_t.
Sponsored by:	DARPA, Network Associates Laboratories
2003-02-22 23:41:27 +00:00
Poul-Henning Kamp
263444cfbf Change the console interface to pass a "struct consdev *" instead of a
dev_t to the method functions.

The dev_t can still be found at struct consdev *->cn_dev.

Add a void *cn_arg element to struct consdev which the drivers can use
for retrieving their softc.
2003-02-20 20:54:45 +00:00
Tim J. Robbins
8fcac23f33 Regen from syscalls.master 1.50. 2003-02-20 13:34:15 +00:00
Tim J. Robbins
c7edd68c94 Mark linux_getpid(), linux_getuid() and linux_getgid() as MPSAFE. 2003-02-20 13:32:48 +00:00
Peter Wemm
d8fcb6da11 Fix fumble in rev 1.525. pmap_kenter()'s second argument is a physical
address, not a page index.

Laughed at by:  jake
2003-02-20 05:35:52 +00:00
Poul-Henning Kamp
ec20bdf897 #include "opt_cpu.h" so we notice our options. 2003-02-19 20:50:02 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Peter Wemm
af3d516f55 Initiate de-orbit burn for USE_PCI_BIOS_FOR_READ_WRITE. This has been
#if'ed out for a while.  Complete the deed and tidy up some other bits.

We need to be able to call this stuff from outer edges of interrupt
handlers for devices that have the ISR bits in pci config space.  Making
the bios code mpsafe was just too hairy.  We had also stubbed it out some
time ago due to there simply being too much brokenness in too many systems.
This adds a leaf lock so that it is safe to use pci_read_config() and
pci_write_config() from interrupt handlers.  We still will use pcibios
to do interrupt routing if there is no acpi.. [yes, I tested this]

Briefly glanced at by:  imp
2003-02-18 03:36:49 +00:00
Julian Elischer
4a338afd7a Move a bunch of flags from the KSE to the thread.
I was in two minds as to where to put them in the first case..
I should have listenned to the other mind.

Submitted by:	 parts by davidxu@
Reviewed by:	jeff@ mini@
2003-02-17 09:55:10 +00:00
Jeff Roberson
5215b1872f - Split the struct kse into struct upcall and struct kse. struct kse will
soon be visible only to schedulers.  This greatly simplifies much the
   KSE code.

Submitted by:	davidxu
2003-02-17 05:14:26 +00:00
Jeff Roberson
e4625663c9 - Move ke_sticks, ke_iticks, ke_uticks, ke_uu, ke_su, and ke_iu back into
the proc.  These counters are only examined through calcru.

Submitted by:	davidxu
Tested on:	x86, alpha, UP/SMP
2003-02-17 02:19:58 +00:00
Poul-Henning Kamp
029f0b69a4 Change "dev_t gdbdev" to "void *gdb_arg", some possible paths for GDB
will not have a dev_t.
2003-02-16 19:22:21 +00:00
Poul-Henning Kamp
f341ca9891 Remove #include <sys/dkstat.h> 2003-02-16 14:13:23 +00:00
Tim J. Robbins
d97ccc7e54 Mark linux_sigpending() as MPSAFE. 2003-02-16 02:31:05 +00:00
Tim J. Robbins
a5ea48d458 Regen from syscalls.master 1.49. 2003-02-16 02:28:35 +00:00
Alan Cox
8e42580deb Assert that the kernel map's system mutex is held in pmap_growkernel(). 2003-02-15 19:23:37 +00:00
Ruslan Ermilov
0b56eafddf Implemented a simple "nodevice" config(8) command that cancels
the effect of the "device" command, and use it to generate the
OLDCARD from GENERIC.

Suggested by:	bde
2003-02-15 02:39:13 +00:00
Ruslan Ermilov
c2604cb567 Diff reduction to GENERIC. 2003-02-14 08:41:25 +00:00
Alan Cox
e33d37b66f - Add a mutex for synchronizing the use of CMAP/CADDR 1 and 2.
- Eliminate small style differences between pmap_zero_page(),
   pmap_copy_page(), etc.
2003-02-14 07:34:28 +00:00
David E. O'Brien
d23dc82958 FB_INSTALL_CDEV not usable on Alpha. 2003-02-13 22:33:26 +00:00
David E. O'Brien
36dc5b9427 Fix the style of the SCHED_4BSD commit. 2003-02-13 22:24:44 +00:00
David E. O'Brien
1e514ebb71 Only i386 has npx device. 2003-02-13 21:55:13 +00:00
Peter Wemm
939a4397b1 Oops. I mis-remembered about the P4 problems. It was 5.0-DP2 that
was shipped with DISABLE_PG_G and DISABLE_PSE, not 5.0-REL.  *blush*
Disable the code - but still leave it there in case its still lurking.
2003-02-13 02:42:06 +00:00
Peter Wemm
521871f1fa Turn of PG_PS and PG_G for Pentium-4 cpus at boot time. This is so
that we can stop turning off PG_G and PG_PS globally for releases.
2003-02-13 01:52:44 +00:00
Alan Cox
393a225ced Remove kptobj. Instead, use VM_ALLOC_NOOBJ. 2003-02-12 04:35:37 +00:00
Poul-Henning Kamp
70d8e2e9aa Switch to using the TSC code in i386/i386/tsc.c. 2003-02-11 11:43:25 +00:00
Mike Barcroft
8cf5ed5125 Implement fpclassify():
o Add a MD header private to libc called _fpmath.h; this header
  contains bitfield layouts of MD floating-point types.
o Add a MI header private to libc called fpmath.h; this header
  contains bitfield layouts of MI floating-point types.
o Add private libc variables to lib/libc/$arch/gen/infinity.c for
  storing NaN values.
o Add __double_t and __float_t to <machine/_types.h>, and provide
  double_t and float_t typedefs in <math.h>.
o Add some C99 manifest constants (FP_ILOGB0, FP_ILOGBNAN, HUGE_VALF,
  HUGE_VALL, INFINITY, NAN, and return values for fpclassify()) to
  <math.h> and others (FLT_EVAL_METHOD, DECIMAL_DIG) to <float.h> via
  <machine/float.h>.
o Add C99 macro fpclassify() which calls __fpclassify{d,f,l}() based
  on the size of its argument.  __fpclassifyl() is never called on
  alpha because (sizeof(long double) == sizeof(double)), which is good
  since __fpclassifyl() can't deal with such a small `long double'.

This was developed by David Schultz and myself with input from bde and
fenner.

PR:		23103
Submitted by:	David Schultz <dschultz@uclink.Berkeley.EDU>
		(significant portions)
Reviewed by:	bde, fenner (earlier versions)
2003-02-08 20:37:55 +00:00
Alan Cox
571cd8a190 MF alpha
- Synchronize access to the allpmaps list with a mutex.
2003-02-08 05:41:41 +00:00
Peter Wemm
e2294003a2 Commit some cosmetic changes I had laying around and almost included
with another commit.  Unwrap a line.  Unexpand a pmap_kenter().
2003-02-07 01:52:06 +00:00
Poul-Henning Kamp
dd43ae4272 This file has no longer any content from the original Berkeley file so
replace the UCB copyright with a FreeBSD 2 clause thing.

Remove some no longer relevant comments.
2003-02-05 11:11:39 +00:00
Poul-Henning Kamp
d1b40f007d i386/i386/tsc.c was repo-copied from i386/isa/clock.c.
Remove all the stuff that does not relate to the TSC.

Change the calibration to use DELAY(1000000) rather than trying to check
it against the CMOS RTC, this drastically increases precision:

Using 25 samples on a Athlon 700MHz UP machine I find:

                stddev          min          max        average
CMOS             22200 Hz    -74980 Hz     34301 Hz   704928721 Hz
DELAY             1805 Hz     -1984 Hz      2678 Hz   704937583 Hz

(The difference between the two averages is not statistically significant.)

expressed in PPM of the frequency:
                stddev          min          max
CMOS             31.49 PPM  -106.37 PPM    48.66 PPM
DELAY             2.56 PPM     2.81 PPM     3.80 PPM

This code will not be used until a followup commit to sys/isa/clock.c
and sys/pc98/pc98/clock.c which will only happen after some field testing.
2003-02-05 09:20:40 +00:00
Poul-Henning Kamp
553ebddc59 Make get_cyclecount() use binuptime() when no tsc is available: it is cheaper. 2003-02-05 08:55:10 +00:00
Hartmut Brandt
e557905435 Fix a problem in bus_dmamap_load_{mbuf,uio} when the first mbuf or the first
uio segment is empty. In this case no dma segment is create by
bus_dmamap_load_buffer, but the calling routine clears the first flag.
Under certain combinations of addresses of the first and second mbuf/uio
buffer this leads to corrupted DMA segment descriptors. This was already
fixed by tmm in sparc64/sparc64/iommu.c.

PR:		kern/47733
Reviewed by:	sam
Approved by:	jake (mentor)
2003-02-04 16:30:27 +00:00
Poul-Henning Kamp
91f1c2b3cc Split the global timezone structure into two integer fields to
prevent the compiler from optimizing assignments into byte-copy
operations which might make access to the individual fields non-atomic.

Use the individual fields throughout, and don't bother locking them with
Giant: it is no longer needed.

Inspired by:    tjr
2003-02-03 19:49:35 +00:00
Jake Burkholder
238dd3209a Split statclock into statclock and profclock, and made the method for driving
statclock based on profhz when profiling is enabled MD, since most platforms
don't use this anyway.  This removes the need for statclock_process, whose
only purpose was to subdivide profhz, and gets the profiling clock running
outside of sched_lock on platforms that implement suswintr.
Also changed the interface for starting and stopping the profiling clock to
do just that, instead of changing the rate of statclock, since they can now
be separate.

Reviewed by:	jhb, tmm
Tested on:	i386, sparc64
2003-02-03 17:53:15 +00:00
Hajimu UMEMOTO
ca26842e2a Add IPv6 support for Linuxlator.
Reviewed by:	dwmalone
MFC after:	10 days
2003-02-03 17:43:20 +00:00
Alan Cox
ca380469a2 - Make allpmaps static.
- Use atomic subtract to update the global wired pages count.  (See
   also vm/vm_page.c revision 1.233.)
 - Assert that the page queue lock is held in pmap_remove_entry().
2003-02-03 00:05:11 +00:00
Alfred Perlstein
04738e99b5 Catch more uses of MIN(). 2003-02-02 13:30:00 +00:00
Alfred Perlstein
8deebb0160 Consolidate MIN/MAX macros into one place (param.h).
Submitted by: Hiten Pandya <hiten@unixdaemons.com>
2003-02-02 13:17:30 +00:00
Josef Karthauser
c0c9e71f9a Put replace spaces with tabs in keeping with the rest of the file. 2003-02-01 18:45:18 +00:00
Poul-Henning Kamp
5d4a99771a add PST to i386 notes. 2003-02-01 17:23:20 +00:00
Julian Elischer
6f8132a867 Reversion of commit by Davidxu plus fixes since applied.
I'm not convinced there is anything major wrong with the patch but
them's the rules..

I am using my "David's mentor" hat to revert this as he's
offline for a while.
2003-02-01 12:17:09 +00:00
Poul-Henning Kamp
3c99c0bc50 Make tsc_freq a 64bit quantity.
Inspired by:    http://www.theinquirer.net/?article=7481
2003-01-29 11:36:39 +00:00
Scott Long
5193a34646 Implement bus_dmamem_alloc_size() and bus_dmamem_free_size() as
counterparts to bus_dmamem_alloc() and bus_dmamem_free().  This allows
the caller to specify the size of the allocation instead of it defaulting
to the max_size field of the busdma tag.

This is intended to aid in converting drivers to busdma.  Lots of
hardware cannot understand scatter/gather lists, which forces the
driver to copy the i/o buffers to a single contiguous region
before sending it to the hardware.  Without these new methods, this
would require a new busdma tag for each operation, or a complex
internal allocator/cache for each driver.

Allocations greater than PAGE_SIZE are rounded up to the next
PAGE_SIZE by contigmalloc(), so this is not suitable for multiple
static allocations that would be better served by a single
fixed-length subdivided allocation.

Reviewed by:	jake (sparc64)
2003-01-29 07:25:27 +00:00
Jake Burkholder
aff81a81d6 Remove BDE_DEBUGGER.
Discussed with:	bde
2003-01-28 19:05:44 +00:00
Alan Cox
d6d92c84c1 Merge pmap_testbit() and pmap_is_modified(). The latter is the only caller
of the former.
2003-01-28 03:01:35 +00:00
Julian Elischer
a18b6f65d0 Fix KSE related patch.
Make it compile for the SMP case..
statclock_process() has changed prototypes.
2003-01-26 21:32:08 +00:00
David Xu
0dbb100b9b Move UPCALL related data structure out of kse, introduce a new
data structure called kse_upcall to manage UPCALL. All KSE binding
and loaning code are gone.

A thread owns an upcall can collect all completed syscall contexts in
its ksegrp, turn itself into UPCALL mode, and takes those contexts back
to userland. Any thread without upcall structure has to export their
contexts and exit at user boundary.

Any thread running in user mode owns an upcall structure, when it enters
kernel, if the kse mailbox's current thread pointer is not NULL, then
when the thread is blocked in kernel, a new UPCALL thread is created and
the upcall structure is transfered to the new UPCALL thread. if the kse
mailbox's current thread pointer is NULL, then when a thread is blocked
in kernel, no UPCALL thread will be created.

Each upcall always has an owner thread. Userland can remove an upcall by
calling kse_exit, when all upcalls in ksegrp are removed, the group is
atomatically shutdown. An upcall owner thread also exits when process is
in exiting state. when an owner thread exits, the upcall it owns is also
removed.

KSE is a pure scheduler entity. it represents a virtual cpu. when a thread
is running, it always has a KSE associated with it. scheduler is free to
assign a KSE to thread according thread priority, if thread priority is changed,
KSE can be moved from one thread to another.

When a ksegrp is created, there is always N KSEs created in the group. the
N is the number of physical cpu in the current system. This makes it is
possible that even an userland UTS is single CPU safe, threads in kernel still
can execute on different cpu in parallel. Userland calls kse_create to add more
upcall structures into ksegrp to increase concurrent in userland itself, kernel
is not restricted by number of upcalls userland provides.

The code hasn't been tested under SMP by author due to lack of hardware.

Reviewed by: julian
2003-01-26 11:41:35 +00:00
Jeff Roberson
4183d949e0 - Remove a redundant scheduler option.
Pointy hat to:	jeff
Spotted by:	dillon
2003-01-26 06:37:43 +00:00
Jeff Roberson
c3384118a1 - Introduce the SCHED_ULE and SCHED_4BSD options for compile time selection
of the scheduler.
 - Add SCHED_4BSD as the scheduler for all kernel config files in cvs.
2003-01-26 05:29:12 +00:00
Peter Wemm
99ebb0bfba Clean up some junk defines, and GC the TPR options. 2003-01-23 01:04:27 +00:00
Peter Wemm
904639d710 Nuke CHEAP_TPR stuff, including LOPRIO_LEVEL (bogus) and ALLHWI_LEVEL
(which we never used).  There is no need to tweak the TPR anymore and
only causes problems.
2003-01-23 01:03:34 +00:00
Peter Wemm
2fbe601a5d Now that TPR isn't bogusly raised at boot, there is no need to clear
it at context switch.
2003-01-23 01:01:35 +00:00
Peter Wemm
e0d92cd4d9 Dont raise the TPR register at initialization time. It only causes
problems and we only ever clear it.
2003-01-23 01:00:58 +00:00
John Baldwin
10deca7e68 - Move enable_sse()'s prototype to machine/md_var.h.
- Sort definition of cpu_* variables appropriately.
- Move cpu_fxsr out of the magic non-BSS set of variables and stick it in
  the BSS along with hw_instruction_sse (make the latter static as well).

Submitted by:	bde (partially)
2003-01-22 18:18:45 +00:00
John Baldwin
caf3197636 Rename cpuid_cpuinfo to cpu_procinfo. bde requested that I rename this
variable to something in the cpu_* namespace since that's what all the
other cpuid variables were named and cpu_procinfo is what I came up with.

Requested by:	bde
2003-01-22 17:54:12 +00:00
John Baldwin
f4e27c448b Bah, add in a missing space char I noticed when MFC'ing this. 2003-01-22 17:26:18 +00:00
Warner Losh
cf19012356 Needs wlan for wi. 2003-01-21 13:31:52 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Jake Burkholder
7251b4bf93 Resolve relative relocations in klds before trying to parse the module's
metadata.  This fixes module dependency resolution by the kernel linker on
sparc64, where the relocations for the metadata are different than on other
architectures; the relative offset is in the addend of an Elf_Rela record
instead of the original value of the location being patched.
Also fix printf formats in debug code.

Submitted by:	Hartmut Brandt <brandt@fokus.gmd.de>
PR:		46732
Tested on:	alpha (obrien), i386, sparc64
2003-01-21 02:42:44 +00:00
Jimmy Olgeni
1897ae9644 Fix typo in comment: inlcude -> include. 2003-01-20 20:23:56 +00:00
Marcel Moolenaar
9d683ffd4b o Move the contents of <machine/floatingpoint.h> over to
<machine/ieeefp.h> where it belongs.
o  Remove the i386 specific inclusion of <machine/floatingpoint.h>
   from <ieeefp.h>, now that including <machine/ieeefp.h> is enough
   for all architectures.
o  Allow <machine/ieeefp.h> to inline the functions exposed by the
   headers by checking for _IEEEFP_INLINED_ in the MI header. When
   defined, prototypes are not given and it is assumed that the MD
   headers, when inlining only a subset of the functions provide
   prototypes for the functions not being inlined.

Based on patch from: Terry Lambert <tlambert2@mindspring.com>
Tested with: make release.
2003-01-19 06:01:33 +00:00
Matthew N. Dodd
95ca467a68 - Removed unecesary code.
- Correct smapi32_new() asm (still doesn't work.)
- Attach to mainboard not isa.
2003-01-18 04:36:12 +00:00
Matthew N. Dodd
7534ac7ab7 A driver for the System Management Application Program
Interface (SMAPI) BIOS, which is present on some IBM
Thinkpad models (560, 600, 770 to name a few.)

The SMAPI BIOS provides access to System Information,
System Configuration, and Power Management.
2003-01-17 08:10:18 +00:00
Sam Leffler
18bf5d2ba6 wi now needs wlan
Reviewed by:	imp
2003-01-16 00:21:52 +00:00
Matthew Dillon
e3669cee72 Merge all the various copies of vm_fault_quick() into a single
portable copy.
2003-01-16 00:02:21 +00:00
Matthew Dillon
f597900329 Merge all the various copies of vmapbuf() and vunmapbuf() into a single
portable copy.  Note that pmap_extract() must be used instead of
pmap_kextract().

This is precursor work to a reorganization of vmapbuf() to close remaining
user/kernel races (which can lead to a panic).
2003-01-15 23:54:35 +00:00
Poul-Henning Kamp
c441cdb88a Add machdep.elan_freq sysctl which can be used to set the CPU clock
frequency in Hz.  The default is still 33.333 MHz.  Please notice
that the number is round to a multiple of four internally so it may
not read back exactly the same as written.

Add compile time ELAN_XTAL option to override the 33.333 MHz default.

Add compile time ELAN_PPS option to enable code for high precision
(250 nanoseconds) timestamping of external signals.
2003-01-15 20:15:33 +00:00
Matthew N. Dodd
e2fdcaf285 - Add inline functions for {ll,l,}abs() to libkern.
- Remove hand rolled abs() functions.
2003-01-15 02:02:33 +00:00
Matthew Dillon
48e3128b34 Bow to the whining masses and change a union back into void *. Retain
removal of unnecessary casts and throw in some minor cleanups to see if
anyone complains, just for the hell of it.
2003-01-13 00:33:17 +00:00
Matthew Dillon
cd72f2180b Change struct file f_data to un_data, a union of the correct struct
pointer types, and remove a huge number of casts from code using it.

Change struct xfile xf_data to xun_data (ABI is still compatible).

If we need to add a #define for f_data and xf_data we can, but I don't
think it will be necessary.  There are no operational changes in this
commit.
2003-01-12 01:37:13 +00:00
John Baldwin
0d238da886 Remove earlysetcpuclass() as it has been OBE.
Suggested by:	bde
2003-01-09 19:59:28 +00:00
John Baldwin
f85b149dae Rework part of the previous processor name changes so that we read
cpu_exthigh and cpu_brand in printcpuinfo() instead of in identify_cpu().
We also only do it for known-good values of cpu_vendor which is a bit more
conservative.

Reviewed by:	bde (mostly)
2003-01-09 19:54:49 +00:00
John Baldwin
338633abf8 Consistently use spaces in between arguments to strcmp(). Whitespace
only.
2003-01-08 19:16:11 +00:00
John Baldwin
5b1e7cb257 - Use cpu_exthigh instead of executing cpuid again to retrieve it for the
print_AMD_foo() functions.
- Add a brand name table for the brand index provided on Intel CPU's in
  %ebx after cpuid 1.
- For Intel CPUs, if we don't get a processor name from the extended cpuid
  then use the brand index in cpuid_cpuinfo to pick a name from the brand
  table and copy that name into cpu_brand.
- Replace the duplicated code to use the extended cpuid to replace
  cpu_model with the processor name in the AMD and Transmeta sections of
  printcpuinfo() with generic code that replaces cpu_model with
  cpu_brand if cpu_brand is not an empty string.  We also trim leading
  spaces from cpu_brand prior to doing this since at least some processor
  names (notably those of Intel CPUs) have leading spaces in the name.
- Give print_AMD_features() its own private regs[] array since
  printcpuinfo() doesn't use the one it has anymore.
2003-01-08 16:41:48 +00:00
John Baldwin
26aa6d02bf - Add a cpu_exthigh variable to hold the highest extended cpuid value
returned from cpuid 0x80000000.
- Add a cpu_brand char array to hold the processor name returned by
  cpuid 0x80000002-0x80000004 on AMD, Intel, Transmeta, and possibly
  other CPUs.
- Use cpuid to set cpu_exthigh and read the processor name if it is present
  in identify_cpu().
2003-01-08 16:35:59 +00:00
John Baldwin
b33c8e3ded Bah, get the test for more than one logical CPU right so we don't bogusly
claim a CPU has HT support when it lists 0 or 1 logical CPU's per physical
processor.
2003-01-08 16:33:03 +00:00
John Baldwin
f4b4a64293 Enumerate logical hyperthread CPUs manually if they aren't already listed
in the mptable.  The way this works is that we determine if the system
has hyperthreading and how many logical CPU's should be in each physical
CPU by using the information returned by cpuid.  During the first pass of
the mptable, we build a bitmask of the APIC IDs of the CPUs listed in the
mptable.  We then scan that bitmask to see if the CPUs are already listed
by the mptable, or if there are any APIC IDs already in use that would
conflict with the APIC IDs of the logical CPUs.  If that test succeeds,
then we fixup the count of application processors.  Later on during the
second pass of the mptable we create fake processor entries for logical
CPUs and add them to the system.

We only need this type of fixup hack when using the mptable to enumerate
CPUs.  The ACPI MADT table properly enumerates all logical CPUs.
2003-01-08 01:33:18 +00:00
John Baldwin
5460753d55 If the boot processor supports hyperthreading and contains more than one
logical CPU, display the number of logical CPUs per physical processor
underneath the list of CPU features.
2003-01-08 01:23:16 +00:00
John Baldwin
fa896b7280 Add a cpuid_cpuinfo variable to hold the results of %ebx from cpuid with
%eax of 1 and set it in identify_cpu().
2003-01-08 01:20:05 +00:00
John Baldwin
72a1e0e226 - Fix the name of the hyperthreading cpuid feature flag to be HTT instead
of HHT.
- Document fields returned in %ebx by a cpuid with %eax of 1.
2003-01-08 01:15:26 +00:00
John Baldwin
bb69b35d8d Document bit 31 of the cpuid features word as PBE (Pending Break Enable). 2003-01-03 18:54:59 +00:00
Jens Schweikhardt
9d5abbddbf Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.
2003-01-01 18:49:04 +00:00
Nate Lawson
d9ce8f5c47 Return an error when r/w is requested on an unsupported device instead of
looping.

Submitted by:	Sean Kelly <smkelly@zombie.org>
Pointed out by:	bde
2002-12-31 21:44:38 +00:00
Jens Schweikhardt
d64ada501a Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/
Add FreeBSD Id tag where missing.
2002-12-30 21:18:15 +00:00
David E. O'Brien
525d98afd8 Change the ident so people know a kernel built with this has SMP support. 2002-12-30 11:36:17 +00:00
David E. O'Brien
5fb4613b6b Sync with GENERIC rev 1.371. 2002-12-30 11:34:45 +00:00
David E. O'Brien
83d06d0529 Using our new wonderful include directive, save our x86 SMP users from
having to edit GENERIC to build a useful kernel.  This also opens the
possibility of including an SMP kernel in the release.
2002-12-30 11:31:58 +00:00
Scott Long
b4b9c52ca4 Add the if_bge driver. I can't find any reason why it's not here, and it's
pretty common on Dell servers and other high-end boxes.
2002-12-28 06:22:17 +00:00
Julian Elischer
93a7aa79d6 Add code to ddb to allow backtracing an arbitrary thread.
(show thread {address})

Remove the IDLE kse state and replace it with a change in
the way threads sahre KSEs. Every KSE now has a thread, which is
considered its "owner" however a KSE may also be lent to other
threads in the same group to allow completion of in-kernel work.
n this case the owner remains the same and the KSE will revert to the
owner when the other work has been completed.

All creations of upcalls etc. is now done from
kse_reassign() which in turn is called from mi_switch or
thread_exit(). This means that special code can be removed from
msleep() and cv_wait().

kse_release() does not leave a KSE with no thread any more but
converts the existing thread into teh KSE's owner, and sets it up
for doing an upcall. It is just inhibitted from being scheduled until
there is some reason to do an upcall.

Remove all trace of the kse_idle queue since it is no-longer needed.
"Idle" KSEs are now on the loanable queue.
2002-12-28 01:23:07 +00:00
Alan Cox
84cdcd85a0 Assert that the page queues lock is held in pmap_testbit(). 2002-12-28 00:19:40 +00:00
David Xu
4b2d2f604c Set %bx register instead of %di register, see vbe3.0, page 45. 2002-12-26 13:20:58 +00:00
Alan Cox
11a2911cec - Hold the page queues lock around calls to vm_page_wakeup() and
vm_page_flag_clear().
2002-12-24 07:32:38 +00:00
Poul-Henning Kamp
152e80d952 Outdent the string rather than use concatenation. 2002-12-23 22:12:17 +00:00
Tim J. Robbins
b30a7779d4 MB_LEN_MAX is not MD, move it to the MI limits.h. 2002-12-22 06:38:45 +00:00
Marcel Moolenaar
91c71b46ed Export the physical address of the RSDP to userland by means
of the `machdep.acpi_root' sysctl. This is required on ia64
because the root pointer hardly ever, if at all, lives in the
first MB of memory and also because scanning the first MB of
memory can cause machine checks.
This provides a save and reliable way for ACPI tools to work
with the tables if ACPI support is present in the kernel. On
ia64 ACPI is non-optional.
2002-12-18 08:47:07 +00:00
Nate Lawson
e38cfb14fe Back out 1.19 to rethink approach
Requested by:	julian@
2002-12-17 05:55:36 +00:00
Nate Lawson
1df5f8294f Automatically issue a "continue" along with the "detach" command. This
fixes the problem of cleanly restarting a target after entering gdb mode.

Reviewed by:	archie@
2002-12-17 01:32:11 +00:00
Julian Elischer
4706b50a40 Reformat last change
Requested by: nate@
2002-12-16 23:25:12 +00:00
Julian Elischer
6b8fc51d28 Don't dump core into a partition that is too small for it.
If we do, we usually wrote backwareds into the proceeding partititon
which is usually the root partition.
2002-12-16 23:04:54 +00:00
Olivier Houchard
47770b6fd5 Add the trm(4) driver.
MFC after:	1 day
2002-12-16 18:47:37 +00:00
Poul-Henning Kamp
a0b3173215 Only dump the BIOS geometry table from bootinfo on PC98, we don't use
the contents on i386 anymore.
2002-12-14 16:11:28 +00:00
Alan Cox
0ced3981d1 Add page locking to pmap_mincore().
Submitted (in part) by:	tjr@
2002-12-14 07:06:27 +00:00
Alfred Perlstein
d1e405c5ce SCARGS removal take II. 2002-12-14 01:56:26 +00:00
Alfred Perlstein
bc9e75d7ca Backout removal SCARGS, the code freeze is only "selectively" over. 2002-12-13 22:41:47 +00:00
Alfred Perlstein
0bbe7292e1 Remove SCARGS.
Reviewed by: md5
2002-12-13 22:27:25 +00:00
Julian Elischer
696058c3c5 Unbreak the KSE code. Keep track of zobie threads using the Per-CPU storage
during the context switch. Rearrange thread cleanups
to avoid problems with Giant. Clean threads when freed or
when recycled.

Approved by:	re (jhb)
2002-12-10 02:33:45 +00:00
John Baldwin
55d7b94047 Add "disabled" hints to all of the uncommon ISA devices that are in
GENERIC.  Each device can be re-enabled at startup time by unsetting the
disabled hint in the loader.

Requested by:	mdodd
Approved by:	re
Prodded by:	rwatson
2002-12-05 22:49:47 +00:00
Alan Cox
a597332c22 Hold the page queues lock around calls to pmap_remove().
Approved by:	re
2002-12-04 18:40:39 +00:00
Poul-Henning Kamp
92a306a2b6 Use the correct value when writing the Day Of Week byte in the CMOS.
The correct range is [1...7] with Sunday=1, but we have been writing
[0...6] with Sunday=0.

The Soekris computers flagged the zero, zapped the date, so if you
rebooted your soekris on a sunday, it would come up with a wrong
date.

Bruce has a more extensive rework of this code, but we will stick with
the minimalist fix for now.

Spotted by:	Soren Kristensen <soren@soekris.com>
Thanks to:	Michael Sierchio <kudzu@tenebras.com>.
Confirmed by:	bde
Approved by:	re
2002-12-04 13:46:49 +00:00
Alan Cox
f4dcf9555e Avoid recursive acquisition of the page queues lock in pmap_unuse_pt().
Approved by:	re
2002-12-03 04:00:42 +00:00
Daniel Eischen
a3dca4517e Align the FPU state in the ucontext and sigcontext to 16 bytes
to accomodate the new SSE/XMM floating point save/restore
instructions.

This commit is mostly from bde and includes some style nits.

Approved by:	re (jhb)
2002-12-02 19:58:55 +00:00
Alan Cox
d79ebb6026 Hold the page queues lock when calling pmap_unwire_pte_hold() or
pmap_remove_pte().  Use vm_page_sleep_if_busy() in
_pmap_unwire_pte_hold() so that the page queues lock is released
when sleeping.

Approved by:	re (blanket)
2002-12-02 04:54:21 +00:00
Alan Cox
e6c90801b3 Assert that the page queues lock is held in pmap_changebit()
and pmap_ts_referenced().

Approved by:	re (blanket)
2002-12-01 00:08:14 +00:00
Alan Cox
0d51d232e5 Assert that the page queues lock is held in pmap_page_exists_quick().
Approved by:	re (blanket)
2002-11-30 17:46:59 +00:00
David E. O'Brien
6380ce4de1 Fix for non-GCC compilers.
Approved by:	re (jhb)
2002-11-27 16:28:18 +00:00
Alan Cox
ffb309581f Assert that the page queues lock is held in pmap_remove_pages().
Approved by:	re (blanket)
2002-11-25 04:45:03 +00:00
Alan Cox
560d1fbc99 Add page queues locking to vunmapbuf(); reduce differences with respect
to the sparc64 implementation.  (Note: With modest effort on the alpha and
ia64 this function could migrate to the MI part of the kernel.)

Approved by:	re (blanket)
2002-11-24 21:37:02 +00:00
Mitsuru IWASAKI
87b45ed576 Add `if (!cold)' checkings for functions which is called via SYSINIT.
Loading acpi.ko with kldload is disallowed, however some
functions were executed unexpectedly.

Approved by:	re
2002-11-24 02:27:07 +00:00
Alan Cox
4817d8e5e6 - Assert that the page queues lock is held in pmap_remove_all().
- Fix a diagnostic message and comment in pmap_remove_all().
 - Eliminate excessive white space from pmap_remove_all().

Approved by:	re
2002-11-23 04:48:13 +00:00
Maxime Henrion
b19d9defef Under certain circumstances, we were calling kmem_free() from
i386 cpu_thread_exit().  This resulted in a panic with WITNESS
since we need to hold Giant to call kmem_free(), and we weren't
helding it anymore in cpu_thread_exit().  We now do this from a
new MD function, cpu_thread_dtor(), called by thread_dtor().

Approved by:	re@
Suggested by:	jhb
2002-11-22 23:57:02 +00:00
John Baldwin
ebff7660a3 *sigh*. It seems that in the ACPICA code, Intel defines its own APIC_IO
macro for use when parsing MADT tables, thus we always tried to set the
interrupt model to APIC.  This proved to be harmful on UP machines with
IO APIC's (or for UP kernels on SMP machines) since the wrong interrupt
routing information would be returned.

Pointy hat to:	jhb
Approved by:	re (rwatson)
2002-11-21 20:55:22 +00:00
Daniel Eischen
2be05b70c9 Add getcontext, setcontext, and swapcontext as system calls.
Previously these were libc functions but were requested to
be made into system calls for atomicity and to coalesce what
might be two entrances into the kernel (signal mask setting
and floating point trap) into one.

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

Tested on alpha by: gallatin
2002-11-16 06:35:53 +00:00
Sam Leffler
6fc32a2495 network interface and link layer changes:
o on input don't strip the Ethernet header from packets
o input packet handling is now done with if_input
o track changes to ether_ifattach/ether_ifdetach API
o track changes to bpf tapping
o call ether_ioctl for default handling of ioctl's
o use constants from net/ethernet.h where possible

Reviewed by:	many
Approved by:	re
2002-11-15 00:00:15 +00:00
Warner Losh
a4bbd12ff1 MFp4:
o Fix small style nit.  This was supposed to be part of the last batch of
  style fixes, but somehow didn't get merged.
2002-11-14 05:22:37 +00:00
Peter Wemm
41f778bb99 Recognize the Serverworks CIOB30 host to pci bridge. 2002-11-13 21:30:44 +00:00
Maxime Henrion
a1bbb9f95c Remove a commented out #include "opt_pci.h", it doesn't
exist anymore.
2002-11-13 17:50:59 +00:00
Matthew N. Dodd
d7545b110c Loader tunable 'machdep.disable_mtrrs'.
Sysctl of same name to reflect status.

Submitted by:	 jhb
Approved by:	 re (murray)
MFC after:	 1 day
2002-11-13 09:37:43 +00:00
Alan Cox
eea85e9bb6 Move pmap_collect() out of the machine-dependent code, rename it
to reflect its new location, and add page queue and flag locking.

Notes: (1) alpha, i386, and ia64 had identical implementations
of pmap_collect() in terms of machine-independent interfaces;
(2) sparc64 doesn't require it; (3) powerpc had it as a TODO.
2002-11-13 05:39:58 +00:00
Alan Cox
6372d61e3e - Clear the page's PG_WRITEABLE flag in the i386's pmap_changebit()
if we're removing write access from the page's PTEs.
 - Export pmap_remove_all() on alpha, i386, and ia64.  (It's already
   exported on sparc64.)
2002-11-11 05:17:34 +00:00
Mitsuru IWASAKI
2be7d43928 Add a new loader tunable, hw.hasbrokenint12, to indicate that BIOS
has broken int 12H.
If hw.hasbrokenint12="1" in loader environment, kernel never use BIOS
INT 12 call to determine base memory size.
Otherwise, kernel use INT 12 in old behaviour.
This should fix kernel panic problem caused by 1.544 changes.

MFC after:	1 day
2002-11-09 21:17:41 +00:00