3986 Commits

Author SHA1 Message Date
rwatson
1fea905f48 Add "options ADAPTIVE_GIANT" which causes Giant to also be treated in
an adaptive fashion when adaptive mutexes are enabled.  The theory
behind non-adaptive Giant is that Giant will be held for long periods
of time, and therefore spinning waiting on it is wasteful.  However,
in MySQL benchmarks which are relatively Giant-free, running Giant
adaptive makes an observable difference on SMP (5% transaction rate
improvement).  As such, make adaptive behavior on Giant an option so
it can be more widely benchmarked.
2004-07-27 16:34:48 +00:00
rwatson
c1241188da Reinforce discouragement of the use of FULL_PREEMPTION. 2004-07-23 17:44:07 +00:00
nyan
3c92d13fb3 Add the ACPI Panasonic extras driver.
Submitted by:	OGAWA Takaya <t-ogawa@triaez.kaisei.org> and nyan
2004-07-21 14:47:54 +00:00
glebius
6c17fc153c Add ng_device(4) to LINT.
Reviewed by:	marks
Approved by:	julian (mentor)
2004-07-20 12:42:54 +00:00
kan
308e433b34 Unbreak kernel compiles by preserving an old opt_adaptive_mutexes.h file
name.
2004-07-18 18:21:39 +00:00
scottl
7ad60316cd Enable ADAPTIVE_MUTEXES by default by changing the sense of the option to
NO_ADAPTIVE_MUTEXES.  This option has been enabled by default on amd64 for
quite some time, and has been extensively tested on i386 and sparc64.  It
shows measurable performance gains in many circumstances, and few negative
effects.  It would be nice in t he future if adaptive mutexes actually went
to sleep after a certain amount of spinning, but that will require quite a
bit more testing.
2004-07-18 15:59:03 +00:00
tanimura
4928df11d8 Sync the example of MODULES_OVERRIDE with the renamed sound drivers.
Pointed out by:	Christoph Mallon <christoph.mallon@gmx.de>
2004-07-16 08:12:14 +00:00
tanimura
217e78b745 Rename the sound device drivers:
- `sound'
  The generic sound driver, always required.

- `snd_*'
  Device-dependent drivers, named after the sound module names.
  Configure accordingly to your hardware.

In addition, rename the `snd_pcm' module to `sound' in order to sync
with the driver names.

Suggested by:	cg
2004-07-16 04:00:08 +00:00
glebius
7597972ed7 Copy qsort_r(3) from libc to libkern.
Reviewed by:	phk
Approved by:	julian (mentor)
2004-07-15 23:58:23 +00:00
njl
e0b379b424 Hook up fdc_acpi for the kernel build. 2004-07-15 16:43:52 +00:00
roam
cdce0672ea A couple of grammar fixes in the bktr options section.
PR:		66828 (mostly)
Submitted by:	Michel Lavondes <fox@vader.aacc.cc.md.us>
MFC after:	2 weeks
2004-07-15 07:52:27 +00:00
phk
2d672551f6 Desupport M-Systems DiskOnChip driver "fla" 2004-07-13 17:43:03 +00:00
imp
420555b333 pccard no longer requires a count because the floppy driver that
nominally had a non-working reference to card.h has been removed.
2004-07-13 02:37:40 +00:00
grehan
8d3be5dece db_memrw.c has been subsumed into db_interface.c ala sparc64 2004-07-12 22:13:27 +00:00
dfr
2e0b3f9605 Make if_fwsubr.c dependant on fwip instead of firewire - there is not
much point including it if you aren't using IP over firewire.
2004-07-12 11:52:14 +00:00
marcel
8d6c4e9703 Update for the KDB framework:
o  Rename WITNESS_DDB to WITNESS_KDB. In the new world order KDB is the
   acronym to use for debugging related code. The DDB option is used
   to enable the DDB debugger backend only.
o  Likewise, rename DDB_TRACE to KDB_TRACE, rename DDB_UNATTENDED to
   KDB_UNATTENDED and rename SC_HISTORY_DDBKEY to SC_HISTORY_KDBKEY.
o  Remove DDB_NOKLDSYM. The new DDB backend supports pre-linker symbol
   lookups as well as KLD symbol lookups at the same time.
o  Remove GDB_REMOTE_CHAT. The GDB protocol hacks to allow this are
   FreeBSD specific. At the same time, the GDB protocol has packets
   for console output.
2004-07-11 01:44:07 +00:00
grehan
a0cdda068d Fix build for non-WITNESS case
spotted by:  Suleiman Souhlal <refugee@segfaulted.com>
2004-07-11 01:38:25 +00:00
marcel
aae5483213 Mega update for the KDB framework: turn DDB into a KDB backend.
Most of the changes are a direct result of adding thread awareness.
Typically, DDB_REGS is gone. All registers are taken from the
trapframe and backtraces use the PCB based contexts. DDB_REGS was
defined to be a trapframe on all platforms anyway.
Thread awareness introduces the following new commands:
	thread X	switch to thread X (where X is the TID),
	show threads	list all threads.

The backtrace code has been made more flexible so that one can
create backtraces for any thread by giving the thread ID as an
argument to trace.

With this change, ia64 has support for breakpoints.
2004-07-10 23:47:20 +00:00
marcel
1dca995d69 Hook the GDB backend into the build. 2004-07-10 23:31:17 +00:00
marcel
6660e9e4c0 Update for the KDB framework. Sanitize the alpha console code now that
it's in the way even more. Basicly: remove all alpha specific console
support from gfb(4), sio(4) and syscons(4). Rewrite the alpha console
initialization to be identical to all other platforms. In a nutshell:
call cninit().
The platform specific code now only sets or clears RB_SERIAL and thus
automaticly causes the right console to be selected.

sio.c:
o  Replace the remote GDB hacks and use the GDB debug port interface
   instead.
o  Make debugging code conditional upon KDB instead of DDB.
o  Call kdb_alt_break() instead of db_alt_break().
o  Call kdb_enter() instead of breakpoint().
o  Remove the ugly compatibility of using the console as the debug
   port.
2004-07-10 22:29:41 +00:00
marcel
486eb0f23a Hook the KDB frontend into the build. 2004-07-10 20:35:00 +00:00
marcel
8a7d828338 Add new options for the KDB framework. This commit merely adds them and
in particular not without removing the options they replace or in the
proper location in this file. The purpose of this commit is to make it
possible to commit changes in parts without causing massive build
breakages. At least, that's the intend. I have no idea if it actually
works out as I hope...
2004-07-10 19:34:06 +00:00
imp
f4c76ff4de Fix mismerge of fdc. Also, OLDCARD never was supported on amd64, so
remove fdc attachment for it.
2004-07-09 05:05:13 +00:00
brian
aae31dbf32 Change the following environment variables to kernel options:
bootp -> BOOTP
    bootp.nfsroot -> BOOTP_NFSROOT
    bootp.nfsv3 -> BOOTP_NFSV3
    bootp.compat -> BOOTP_COMPAT
    bootp.wired_to -> BOOTP_WIRED_TO

- i.e. back out the previous commit.  It's already possible to
pxeboot(8) with a GENERIC kernel.

Pointed out by: dwmalone
2004-07-08 22:35:36 +00:00
nyan
ee6a790d11 - Merged from sys/dev/fdc/fdc.c revision 1.275.
- Break out the cbus front end from fd.c.
- Remove the pccard support because it was broken.
2004-07-08 13:56:17 +00:00
brian
2821a50eaa Change the following kernel options to environment variables:
BOOTP -> bootp
    BOOTP_NFSROOT -> bootp.nfsroot
    BOOTP_NFSV3 -> bootp.nfsv3
    BOOTP_COMPAT -> bootp.compat
    BOOTP_WIRED_TO -> bootp.wired_to

This lets you PXE boot with a GENERIC kernel by putting this sort of thing
in loader.conf:

    bootp="YES"
    bootp.nfsroot="YES"
    bootp.nfsv3="YES"
    bootp.wired_to="bge1"

or even setting the variables manually from the OK prompt.
2004-07-08 13:40:33 +00:00
imp
f84c290dac Break out the isa and pccard front ends to the fdc controller device.
This should allow us to more easily break out the acpi and 'legacy pc'
front ends as well (so only the bus front end would touch rtc, for
example).

This isn't a great separation, since isa dma routines are still called
from the MI code, but it is a start.
2004-07-07 22:29:33 +00:00
tjr
ab16560f33 By popular request, add a workaround that allows large (>128GB or so)
FAT32 filesystems to be mounted, subject to some fairly serious limitations.

This works by extending the internal pseudo-inode-numbers generated from
the file's starting cluster number to 64-bits, then creating a table
mapping these into arbitrary 32-bit inode numbers, which can fit in
struct dirent's d_fileno and struct vattr's va_fileid fields. The mappings
do not persist across unmounts or reboots, so it's not possible to export
these filesystems through NFS. The mapping table may grow to be rather
large, and may grow large enough to exhaust kernel memory on filesystems
with millions of files.

Don't enable this option unless you understand the consequences.
2004-07-03 13:22:38 +00:00
jhb
696704716d Implement preemption of kernel threads natively in the scheduler rather
than as one-off hacks in various other parts of the kernel:
- Add a function maybe_preempt() that is called from sched_add() to
  determine if a thread about to be added to a run queue should be
  preempted to directly.  If it is not safe to preempt or if the new
  thread does not have a high enough priority, then the function returns
  false and sched_add() adds the thread to the run queue.  If the thread
  should be preempted to but the current thread is in a nested critical
  section, then the flag TDF_OWEPREEMPT is set and the thread is added
  to the run queue.  Otherwise, mi_switch() is called immediately and the
  thread is never added to the run queue since it is switch to directly.
  When exiting an outermost critical section, if TDF_OWEPREEMPT is set,
  then clear it and call mi_switch() to perform the deferred preemption.
- Remove explicit preemption from ithread_schedule() as calling
  setrunqueue() now does all the correct work.  This also removes the
  do_switch argument from ithread_schedule().
- Do not use the manual preemption code in mtx_unlock if the architecture
  supports native preemption.
- Don't call mi_switch() in a loop during shutdown to give ithreads a
  chance to run if the architecture supports native preemption since
  the ithreads will just preempt DELAY().
- Don't call mi_switch() from the page zeroing idle thread for
  architectures that support native preemption as it is unnecessary.
- Native preemption is enabled on the same archs that supported ithread
  preemption, namely alpha, i386, and amd64.

This change should largely be a NOP for the default case as committed
except that we will do fewer context switches in a few cases and will
avoid the run queues completely when preempting.

Approved by:	scottl (with his re@ hat)
2004-07-02 20:21:44 +00:00
pjd
7f4ea6942f Introduce GEOM_LABEL class.
This class is used for detecting volume labels on file systems:
UFS, MSDOSFS (FAT12, FAT16, FAT32) and ISO9660.
It also provide native labelization (there is no need for file system).

g_label_ufs.c is based on geom_vol_ffs from Gordon Tetlow.
g_label_msdos.c and g_label_iso9660.c are probably hacks, I just found
where volume labels are stored and I use those offsets here,
but with this class it should be easy to do it as it should be done by
someone who know how.
Implementing volume labels detection for other file systems also should
be trivial.

New providers are created in those directories:
/dev/ufs/ (UFS1, UFS2)
/dev/msdosfs/ (FAT12, FAT16, FAT32)
/dev/iso9660/ (ISO9660)
/dev/label/ (native labels, configured with glabel(8))

Manual page cleanups and some comments inside were submitted by
Simon L. Nielsen, who was, as always, very helpful. Thanks!
2004-07-02 19:40:36 +00:00
ps
268ac8d0b8 When building a kernel or the loader, let the hostname be overridden 2004-07-01 06:40:12 +00:00
imp
b5563d0851 My last commit broke oldcard. Rather than duplicate the lines for
pccarddevs.h, just make it standard for now.  Once oldcard is gone,
we'll revisit.
2004-06-30 14:52:49 +00:00
njl
6e4012e1cd Move acpi_if.m to files.{amd64,i386,ia64}. This should fix the alpha build.
Pointed out by:	gallatin
2004-06-30 14:19:28 +00:00
njl
8feb332718 Like usbdevs, use before-depend to ensure ordering.
Glass plaque award:	obrien
2004-06-30 05:21:43 +00:00
njl
3c444fb050 Restore the terminating backslash lost by a typo. 2004-06-30 04:54:39 +00:00
njl
13c866dd86 Make acpi_quirks.h conditional on device acpi. 2004-06-30 04:52:55 +00:00
njl
f4e4cbe915 Add glue for building acpi_quirk.c 2004-06-30 04:47:31 +00:00
jhb
faceae6354 Document the MUTEX_WAKE_ALL option and turn it on in LINT. 2004-06-30 01:00:59 +00:00
njl
116b6466b4 Add acpi methods for HID/CID probing, evaluating objects, and walking the
namespace.  This is to allow decoupling of attachments from ACPI where they
need some functionality when ACPI is present but do not want to require ACPI
to always be loaded.
2004-06-29 18:56:14 +00:00
jhb
6502f84a50 Add two new kernel options to allow rudimentary profiling of the internal
hash tables used in the sleep queue and turnstile code.  Each option adds
a sysctl tree under debug containing the maximum depth of any bucket in
the hash table as well as a separate node for each bucket (or chain)
containing the current depth and maximum depth for that bucket.
2004-06-29 02:30:12 +00:00
imp
e93a181ae0 We need to build miidevs.h when we have miibus, not mii. 2004-06-28 16:22:20 +00:00
imp
bac8cc2a43 We don't need GEN_M_CFILES. Fold it into GEN_CFILES definition and
adjust as necessary.

Suggested by: bde
2004-06-27 23:03:43 +00:00
imp
22bccaefb7 Only build miidevs.h when we have mii in the kernel
Only build pccarddevs.h when we have pccard in the kernel
Only build usbdevs.h when we have usb in the kernel

Suggested by: bde
2004-06-27 20:16:56 +00:00
rwatson
53b6cf59c4 Add options NETGRAPH_FEC to hook up ng_fec.c to the LINT build. 2004-06-27 02:36:33 +00:00
rwatson
b8604119e6 Add options NETGRAPH_EIFACE, which causes ng_eiface.c to be built into
the kernel, similar to NETGRAPH_IFACE for ng_iface.c.  It appears to
have been omitted when added to the kernel.
2004-06-27 02:25:38 +00:00
mpp
d123ca56b7 Spelling fixes. 2004-06-26 17:19:44 +00:00
imp
772718717b MFp4:
Now that the devs files are marked before-depend, we can remvoe them
from a few places they were explicitly mentioned (along with
BEFORE_DEPEND).

Noticed by: bde
2004-06-26 06:02:06 +00:00
imp
660296ab04 MFp4:
Reduce the need for hard coded *devs in various makefiles by declaring
them before-depend.

Other bugs in the handling of *devs remain, but this is the start of
the cleanup.  These will be address in future commits.

Cleanup Motivator: bde
2004-06-26 05:58:43 +00:00
grehan
c816bab6f3 Catch up with sparc64 OFWCONS_POLL_HZ change 2004-06-25 13:44:34 +00:00
njl
4259b2bf62 Hook acpi_quirks up to the build for kernel and modules. 2004-06-24 06:29:22 +00:00