Commit Graph

3495 Commits

Author SHA1 Message Date
Scott Long
8c33536c7f Add the MUTEX_NOINLINE option that explicitely de-inlines the mutex
operations.

Submitted by:	jhb
2003-05-18 03:46:30 +00:00
Marcel Moolenaar
f2c49dd248 Revamp of the syscall path, exception and context handling. The
prime objectives are:
o  Implement a syscall path based on the epc inststruction (see
   sys/ia64/ia64/syscall.s).
o  Revisit the places were we need to save and restore registers
   and define those contexts in terms of the register sets (see
   sys/ia64/include/_regset.h).

Secundairy objectives:
o  Remove the requirement to use contigmalloc for kernel stacks.
o  Better handling of the high FP registers for SMP systems.
o  Switch to the new cpu_switch() and cpu_throw() semantics.
o  Add a good unwinder to reconstruct contexts for the rare
   cases we need to (see sys/contrib/ia64/libuwx)

Many files are affected by this change. Functionally it boils
down to:
o  The EPC syscall doesn't preserve registers it does not need
   to preserve and places the arguments differently on the stack.
   This affects libc and truss.
o  The address of the kernel page directory (kptdir) had to
   be unstaticized for use by the nested TLB fault handler.
   The name has been changed to ia64_kptdir to avoid conflicts.
   The renaming affects libkvm.
o  The trapframe only contains the special registers and the
   scratch registers. For syscalls using the EPC syscall path
   no scratch registers are saved. This affects all places where
   the trapframe is accessed. Most notably the unaligned access
   handler, the signal delivery code and the debugger.
o  Context switching only partly saves the special registers
   and the preserved registers. This affects cpu_switch() and
   triggered the move to the new semantics, which additionally
   affects cpu_throw().
o  The high FP registers are either in the PCB or on some
   CPU. context switching for them is done lazily. This affects
   trap().
o  The mcontext has room for all registers, but not all of them
   have to be defined in all cases. This mostly affects signal
   delivery code now. The *context syscalls are as of yet still
   unimplemented.

Many details went into the removal of the requirement to use
contigmalloc for kernel stacks. The details are mostly CPU
specific and limited to exception_save() and exception_restore().
The few places where we create, destroy or switch stacks were
mostly simplified by not having to construct physical addresses
and additionally saving the virtual addresses for later use.

Besides more efficient context saving and restoring, which of
course yields a noticable speedup, this also fixes the dreaded
SMP bootup problem as a side-effect. The details of which are
still not fully understood.

This change includes all the necessary backward compatibility
code to have it handle older userland binaries that use the
break instruction for syscalls. Support for break-based syscalls
has been pessimized in favor of a clean implementation. Due to
the overall better performance of the kernel, this will still
be notived as an improvement if it's noticed at all.

Approved by: re@ (jhb)
2003-05-16 21:26:42 +00:00
Marcel Moolenaar
5551d84398 Sync the linker script with the one used by default for userland. Since
ia64 only uses relocations with addend, remove the sections specific to
non-addend relocations (.rel.*). Also remove C++ specific sections.

Approved by: re@ (blanket)
2003-05-16 06:03:45 +00:00
David E. O'Brien
04ddc5dea6 Run $S/kern/genassym.sh with the correct NM.
Approved by:	re(blanket)
2003-05-16 02:27:17 +00:00
Juli Mallett
7bbf05a2c3 Clear up that COMPAT_43 may not do the same thing on every architecture
and clear up that COMPAT_SUNOS is similarly MI, and does something
relatively similar.

Approved by:	re/rwatson
2003-05-15 02:10:30 +00:00
Peter Wemm
d85631c4ac Add BASIC i386 binary support for the amd64 kernel. This is largely
stolen from the ia64/ia32 code (indeed there was a repocopy), but I've
redone the MD parts and added and fixed a few essential syscalls.  It
is sufficient to run i386 binaries like /bin/ls, /usr/bin/id (dynamic)
and p4.  The ia64 code has not implemented signal delivery, so I had
to do that.

Before you say it, yes, this does need to go in a common place.  But
we're in a freeze at the moment and I didn't want to risk breaking ia64.
I will sort this out after the freeze so that the common code is in a
common place.

On the AMD64 side, this required adding segment selector context switch
support and some other support infrastructure.  The %fs/%gs etc code
is hairy because loading %gs will clobber the kernel's current MSR_GSBASE
setting.  The segment selectors are not used by the kernel, so they're only
changed at context switch time or when changing modes.  This still needs
to be optimized.

Approved by:	re (amd64/* blanket)
2003-05-14 04:10:49 +00:00
Scott Long
21157fae1c Add files for the 'ips' driver. 2003-05-11 06:37:52 +00:00
Scott Long
5639836dcf garbage collect the reserved major for the ips disk device. GEOM makes
it unneeded.
2003-05-11 06:18:33 +00:00
Peter Wemm
b2744ab9c4 Remove special hacks for FSF cross tools now that it builds natively. 2003-05-10 01:12:24 +00:00
Scott Long
bc2de3dac0 We are now in 5.1-BETA 2003-05-06 03:55:24 +00:00
Poul-Henning Kamp
069accaa6a Put descriptive comments on the GEOM_* options 2003-05-05 21:21:31 +00:00
David E. O'Brien
1d7157c5c3 Use C99 for the kernel. 2003-05-03 18:05:56 +00:00
Shunsuke Akiyama
11e04b0528 Add RealTek RTL8150 USB to fast Ethernet controller driver.
This driver now supports the Melco LUA-KTX and the GREEN HOUSE
GH-USB100B.

Reviewed by:	imp
MFC after:	2 weeks
2003-05-03 10:16:56 +00:00
Peter Wemm
7dca36c92c Spell cpu_switch correctly. 2003-05-03 03:30:29 +00:00
Peter Wemm
278286256b Rename amd64/*.s to amd64/*.S 2003-05-03 00:19:42 +00:00
Yoshihiro Takahashi
50cf98ed97 - Move decoding pc98_partition function into geom_pc98_enc.c.
- Add encoding pc98_partition function.
2003-05-01 13:44:24 +00:00
Peter Wemm
b05deb9bc1 Sync up with the files in the hammer branch in the p4 tree to get basic
AMD64 support.  There is still more to add.
2003-05-01 02:59:24 +00:00
Peter Wemm
a15febf91b Add AMD64 hooks 2003-04-30 22:22:29 +00:00
Mark Murray
1d6911d10f Help out with linting. Print the ${LINT} command line. This makes
the all-important -DFOO -IBAR options "hang out".
2003-04-30 12:19:25 +00:00
Nate Lawson
1ea349191e Catch up with the new acpi files. 2003-04-29 19:19:47 +00:00
Marcel Moolenaar
b1c4ed2222 Sort lines. 2003-04-29 05:38:41 +00:00
Warner Losh
02aa843a15 Update to reflect tw removal.
Approved by: re@ (scottl)
2003-04-27 05:40:53 +00:00
Eric Anholt
42da33c444 Update the DRM to the latest from DRI CVS. Includes some bugfixes and removal
of the infrastructure for the gamma driver which was removed a while back.
The DRM_LINUX option is removed because the handler is now provided by the
linux compat code itself.
2003-04-25 01:18:47 +00:00
Poul-Henning Kamp
666223979c Update GEOM::SUN to use the decoding functions in geom_sunlabel_enc.c
and #defines from sys/sun_disklabel.h.
2003-04-21 19:54:11 +00:00
Bill Paul
87b4a25958 Add device driver support for the ASIX Electronics AX88172 USB 2.0
ethernet controller. The driver has been tested with the LinkSys
USB200M adapter. I know for a fact that there are other devices out
there with this chip but don't have all the USB vendor/device IDs.

Note: I'm not sure if this will force the driver to end up in the
install kernel image or not. Special magic needs to be done to exclude
it to keep the boot floppies from bloating again, someone please
advise.
2003-04-20 19:05:33 +00:00
Poul-Henning Kamp
daabb372ca Separate the encoding/decoding functions for struct disklabel into a
separate source file which can be used from both kernel and userland code.
2003-04-17 07:39:03 +00:00
Hidetoshi Shimokawa
4ed471c143 Add dev/firewire/fwdma.c. 2003-04-17 03:39:27 +00:00
Poul-Henning Kamp
18b492fc8c Bump the config version to force people to upgrade their config(8)
so the fix for emitting multiple instances of .o files will prevent
link errors on LINT.
2003-04-15 21:29:11 +00:00
John Baldwin
8667535d13 NO_COMPAT_FREEBSD4 is no longer used. 2003-04-15 20:59:43 +00:00
Robert Watson
3757e11997 Re-add MUTEX_DEBUG and MUTEX_PROFILING, which got hosed by rejected
chunks from bde's patch.

Spotted by:	jhb
2003-04-15 20:49:48 +00:00
Robert Watson
d971c22b4a Improve consistency, ordering, style of options:
- Remove extra blank lines
- Sort options
- Remove comments that belong in NOTES

Submitted by:	bde (older revision)
2003-04-15 19:43:52 +00:00
Matthew N. Dodd
5423375573 Express bus dependency a little more clearly. 2003-04-15 04:08:01 +00:00
Robert Watson
e965edfda2 Add MAC_ALWAYS_LABEL_MBUF to options; this permits the administrator
to force the allocation of MAC labels for all mbufs regardless of
whether a configured policy requires labeling when the mbuf is
allocated.  This can be useful it you anticipate loading a fully
labeled policy after boot and don't want mbufs to exist without
label storage, for performance measurement purposes, etc.  It also
slightly lowers the overhead of m_tag labeling due to removing the
decision logic.

While here, improve commenting of other MAC options.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2003-04-14 21:45:12 +00:00
Bernd Walter
ca3acad1d7 add EHCI (USB 2.0) controller support.
Approved by:	joe
		gallatin (mentor)
Obtained from:  NetBSD
2003-04-14 14:04:08 +00:00
Max Khon
7d0de413cb Driver for Granch SBNI16 SHDSL modem
Submitted by:	Denis I. Timofeev <timofeev@granch.ru>
MFC after:	1 week
2003-04-13 06:27:13 +00:00
Dag-Erling Smørgrav
ed9adee74c Options that go into homonymous headers shouldn't specify the header name.
Submitted by:	Hiten Pandya <hiten@unixdaemons.com>
2003-04-12 09:40:37 +00:00
Poul-Henning Kamp
6e03422af0 Move the functions for encoding decoding struct dos_partition into
a separate .c file so they can be used from userland as well.
2003-04-12 08:34:40 +00:00
Mike Silbersack
53dcc544a8 Rename MBUF_FRAG_TEST to MBUF_STRESS_TEST as it will be extended
to include more than just frag tests.
2003-04-12 06:11:46 +00:00
Mike Barcroft
4e0ee531f2 Clarify NO_SWAPPING description. 2003-04-11 14:48:13 +00:00
Dag-Erling Smørgrav
0da46d776b Convert the SMP_TSC kernel option into a loader tunable. Also enable
the TSC timecounter on single-CPU systems even when they are running
an SMP kernel.
2003-04-10 23:07:24 +00:00
Matthew N. Dodd
efc5f672bd - Add PCI support (Adaptec AHA-2920/A,Future Domain TMC-18XX/3260).
- Reduce duplicated code.

PR:             50427
Submitted by:   Bob Bishop <rb@gid.co.uk>
2003-04-07 10:13:25 +00:00
Tor Egge
fd6d48b8e8 Add SMP_TSC option, which can be used on SMP systems where the TSCs
are synchronized to reduce context switch cost.
2003-04-04 23:54:46 +00:00
Poul-Henning Kamp
fb89eb1ed7 Add a rudimentary but working driver for the Adlink "NuDaq PCI-9812".
This is a 4 channel 20 msps 12 bit ADC card.

Anyone wanting to play with GNUradio or similar can start here.
2003-04-04 18:53:04 +00:00
Yoshihiro Takahashi
335ac29ccd MFi386: revision 1.188 2003-04-03 12:39:51 +00:00
Poul-Henning Kamp
4d3651f456 Remove geom_enc.c, a superset of these functions are now available in
<sys/endian.h>
2003-04-03 11:40:06 +00:00
Peter Wemm
cc66ebe2a9 Commit a partial lazy thread switch mechanism for i386. it isn't as lazy
as it could be and can do with some more cleanup.  Currently its under
options LAZY_SWITCH.  What this does is avoid %cr3 reloads for short
context switches that do not involve another user process.  ie: we can
take an interrupt, switch to a kthread and return to the user without
explicitly flushing the tlb.  However, this isn't as exciting as it could
be, the interrupt overhead is still high and too much blocks on Giant
still.  There are some debug sysctls, for stats and for an on/off switch.

The main problem with doing this has been "what if the process that you're
running on exits while we're borrowing its address space?" - in this case
we use an IPI to give it a kick when we're about to reclaim the pmap.

Its not compiled in unless you add the LAZY_SWITCH option.  I want to fix a
few more things and get some more feedback before turning it on by default.

This is NOT a replacement for Bosko's lazy interrupt stuff.  This was more
meant for the kthread case, while his was for interrupts.  Mine helps a
little for interrupts, but his helps a lot more.

The stats are enabled with options SWTCH_OPTIM_STATS - this has been a
pseudo-option for years, I just added a bunch of stuff to it.

One non-trivial change was to select a new thread before calling
cpu_switch() in the first place.  This allows us to catch the silly
case of doing a cpu_switch() to the current process.  This happens
uncomfortably often.  This simplifies a bit of the asm code in cpu_switch
(no longer have to call choosethread() in the middle).  This has been
implemented on i386 and (thanks to jake) sparc64.  The others will come
soon.  This is actually seperate to the lazy switch stuff.

Glanced at by:  jake, jhb
2003-04-02 23:53:30 +00:00
Jeff Roberson
404c3ad471 - Add the kern_umtx.c file to the build. 2003-04-01 01:13:29 +00:00
Jeff Roberson
f00fea89ca - Add kern_thr.c 2003-04-01 00:30:54 +00:00
Jake Burkholder
7ab9b220d9 - Add support for PAE and more than 4 gigs of ram on x86, dependent on the
kernel opition 'options PAE'.  This will only work with device drivers which
  either use busdma, or are able to handle 64 bit physical addresses.

Thanks to Lanny Baron from FreeBSD Systems for the loan of a test machine
with 6 gigs of ram.

Sponsored by:	DARPA, Network Associates Laboratories, FreeBSD Systems
2003-03-30 05:24:52 +00:00
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