Commit Graph

176 Commits

Author SHA1 Message Date
jhb
7e643be20f Move SMBFS from i386 and pc98 files and options files to MI files and
options files.
2002-07-15 19:11:21 +00:00
jhb
82c8bf8cf3 The puc(4) driver/bridge is MI, so don't bury it in MD options and files
config files.  It also depends on PCI.
2002-07-15 15:39:10 +00:00
jhb
2ec58be99a Make WLCACHE and WLDEBUG MI options. 2002-07-15 15:21:51 +00:00
jhb
87f334cc9d Make NDGBPORTS an MI option since the dgb(4) driver is an MI driver.
Remove comments about NDGBPORTS from the options* files.  Please document
options in NOTES, not in the options* files.
2002-07-15 15:18:34 +00:00
peter
4d88d6566a Revive backed out pmap related changes from Feb 2002. The highlights are:
- It actually works this time, honest!
- Fine grained TLB shootdowns for SMP on i386.  IPI's are very expensive,
  so try and optimize things where possible.
- Introduce ranged shootdowns that can be done as a single IPI.
- PG_G support for i386
- Specific-cpu targeted shootdowns.  For example, there is no sense in
  globally purging the TLB cache for where we are stealing a page from
  the local unshared process on the local cpu.  Use pm_active to track
  this.
- Add some instrumentation for the tlb shootdown code.
- Rip out SMP code from <machine/cpufunc.h>
- Try and fix some very bogus PG_G and PG_PS interactions that were bad
  enough to cause vm86 bios calls to break.  vm86 depended on our existing
  bugs and this was the cause of the VESA panics last time.
- Fix the silly one-line error that caused the 'panic: bad pte' last time.
- Fix a couple of other silly one-line errors that should have caused more
  pain than they did.

Some more work is needed:
- pmap_{zero,copy}_page[_idle].  These can be done without IPI's if we
  have a hook in cpu_switch.
- The IPI handlers need some cleanup.  I have a bogus %ds load that can
  be avoided.
- APTD handling is rather bogus and appears to be a large source of
  global TLB IPI shootdowns for no really good reason.

I see speedups of between 1.5% and ~4% on buildworlds in a while 1 loop.
I expect to see a bigger difference when there is significant pageout
activity or the system otherwise has memory shortages.

I have backed out a few optimizations that I had been using over the last
few days in order to be a little more conservative.  I'll revisit these
again over the next few days as the dust settles.

New option:  DISABLE_PG_G - In case I missed something.
2002-07-12 07:56:11 +00:00
n_hibma
90312e83bd Make the speed used by gdb over serial settable in the kernel configuration.
This facilitates the use in circumstances where you are using a serial
console as well. GDB doesn't support anything higher than 9600 baud (19k2
if you are lucky), but the console does.
2002-06-18 21:30:37 +00:00
trhodes
28d42899b7 More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
peter
f2dee2e96f Back out all the pmap related stuff I've touched over the last few days.
There is some unresolved badness that has been eluding me, particularly
affecting uniprocessor kernels.  Turning off PG_G helped (which is a bad
sign) but didn't solve it entirely.  Userland programs still crashed.
2002-02-27 09:51:33 +00:00
peter
748d0e1167 Work-in-progress commit syncing up pmap cleanups that I have been working
on for a while:
- fine grained TLB shootdown for SMP on i386
- ranged TLB shootdowns.. eg: specify a range of pages to shoot down with
  a single IPI, since the IPI is very expensive.  Adjust some callers
  that used to trigger this inside tight loops to do a ranged shootdown
  at the end instead.
- PG_G support for SMP on i386 (options ENABLE_PG_G)
- defer PG_G activation till after we decide what we are going to do with
  PSE and the 4MB pages at the start of the kernel.  This should solve
  some rumored strangeness about stale PG_G entries getting stuck
  underneath the 4MB pages.
- add some instrumentation for the fine TLB shootdown
- convert some asm instruction wrappers from functions to inlines.  gcc
  seems to do a fair bit better with this.
- [temporarily!] pessimize the tlb shootdown IPI handlers.  I will fix
  this again shortly.

This has been working fairly well for me for a while, but I have tweaked
it again prior to commit since my last major testing round.  The only
outstanding problem that I know of is PG_G related, which is why there
is an option for it (not on by default for SMP).  I have seen a world
speedups by a few percent (as much as 4 or 5% in one case) but I have
*not* accurately measured this - I am a bit sceptical of these numbers.
2002-02-25 23:49:51 +00:00
jhay
a6fbc8577e Add the puc (PCI "Universal" Communications) driver. The idea and some of
the structure definitions come from NetBSD to make it easier to share card
definitions. The driver only acts as a shim between the pci bus and the
sio driver. Later pci parallel ports could also be supported through this
driver. Support for most single and multiport pci serial cards should be
as simple as adding its definition to pucdata.c

Tested with the following pci cards:
Moxa Industio CP-114, 4 port RS-232,RS-422/485
Syba Tech Ltd. PCI-4S2P-550-ECP, 4 port RS-232 + 2 parallel ports
Netmos NM9835 PCI-2S-550, 2 port RS-232
2002-02-16 15:12:14 +00:00
bde
3247dc600a Garbage collect options AVM_A1_PCI, AVM_A1_PCMCIA, DEBUG_LINUX, DEV_APM,
GUS_DMA, GUS_DMA2, GUS_IRQ, OLTR_NO_BULLSEYE_MAC, OLTR_NO_HAWKEYE_MAC,
OLTR_NO_TMS_MAC and PCIC_RESUME_RESET.
2002-02-15 10:19:39 +00:00
dwmalone
74fa509202 Add an option CPU_ATHLON_SSE_HACK which attempts to enable the SSE
feature bit on newer Athlon CPUs if the BIOS has forgotten to enable
it.

This patch was constructed using some info made available by John
Clemens at http://www.deater.net/john/PavilionN5430.html

Reviewed by:	-audit
MFC after:	3 weeks
2002-02-12 21:13:02 +00:00
gallatin
1e9b142f05 Enable polling to be configured into kernels on non i386 platforms. Note that
poll_in_trap is only implemented on i386.  I've tested this on alpha.

Approved by: luigi
2002-02-12 00:26:06 +00:00
tmm
c923af5389 Move the PCI_ENABLE_IO_MODES option from conf/options.i386 to
conf/options.
2001-12-21 21:46:55 +00:00
luigi
f8ad22919e Device Polling code for -current.
Non-SMP, i386-only, no polling in the idle loop at the moment.

To use this code you must compile a kernel with

        options DEVICE_POLLING

and at runtime enable polling with

        sysctl kern.polling.enable=1

The percentage of CPU reserved to userland can be set with

        sysctl kern.polling.user_frac=NN (default is 50)

while the remainder is used by polling device drivers and netisr's.
These are the only two variables that you should need to touch. There
are a few more parameters in kern.polling but the default values
are adequate for all purposes. See the code in kern_poll.c for
more details on them.

Polling in the idle loop will be implemented shortly by introducing
a kernel thread which does the job. Until then, the amount of CPU
dedicated to polling will never exceed (100-user_frac).
The equivalent (actually, better) code for -stable is at

	http://info.iet.unipi.it/~luigi/polling/

and also supports polling in the idle loop.

NOTE to Alpha developers:
There is really nothing in this code that is i386-specific.
If you move the 2 lines supporting the new option from
sys/conf/{files,options}.i386 to sys/conf/{files,options} I am
pretty sure that this should work on the Alpha as well, just that
I do not have a suitable test box to try it. If someone feels like
trying it, I would appreciate it.

NOTE to other developers:
sure some things could be done better, and as always I am open to
constructive criticism, which a few of you have already given and
I greatly appreciated.
However, before proposing radical architectural changes, please
take some time to possibly try out this code, or at the very least
read the comments in kern_poll.c, especially re. the reason why I
am using a soft netisr and cannot (I believe) replace it with a
simple timeout.

Quick description of files touched by this commit:

sys/conf/files.i386
        new file kern/kern_poll.c
sys/conf/options.i386
        new option
sys/i386/i386/trap.c
        poll in trap (disabled by default)
sys/kern/kern_clock.c
        initialization and hardclock hooks.
sys/kern/kern_intr.c
        minor swi_net changes
sys/kern/kern_poll.c
        the bulk of the code.
sys/net/if.h
        new flag
sys/net/if_var.h
        declaration for functions used in device drivers.
sys/net/netisr.h
        NETISR_POLL
sys/dev/fxp/if_fxp.c
sys/dev/fxp/if_fxpvar.h
sys/pci/if_dc.c
sys/pci/if_dcreg.h
sys/pci/if_sis.c
sys/pci/if_sisreg.h
        device driver modifications
2001-12-14 17:56:12 +00:00
phk
9bb69cda68 GC userconfig after Peter axed it 15 months ago. 2001-11-05 21:46:35 +00:00
jlemon
fe5999a4cb Add PCI_ENABLE_IO_MODES option, for BIOSen that neglect this.
Submitted by: Andrew R. Reiter arr@watson.org
2001-10-25 04:44:50 +00:00
hm
f392095807 Add a driver for the Compaq Microcom 610 ISDN (Compaq series PSB2222I) ISA PnP
card.

Submitted by:	Steve Looman
Reviewed by:	hm
MFC after:	1 month
2001-10-21 09:17:25 +00:00
sobomax
ba9ac46632 Introduce new syscons(4) kernel options:
- SC_CUT_SPACES2TABS - when copying text into the cut buffer convert leading
  spaces into the tabs;
- SC_CUT_SEPCHARS="XYZ" - treat supplied characters as possible words
  separators when the driver searches for words boundaries when doing cut
  operation.

Also unify cut code a bit to decrease amount of duplicated code. This fixes
line cut mode, so that it is no longer pads line with useless spaces.

Approved by:	ru
2001-09-21 20:41:24 +00:00
peter
7290545b37 Introduce a new option, KVA_SPACE, which can be used to reconfigure
the size of the kernel virtual address space relatively painlessly.
Userland will adapt via the exported kernbase symbol.  Increasing
this causes the user part of address space to reduce.
2001-09-21 06:23:03 +00:00
julian
5596676e6c KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
sos
b96ac482b2 There is no option IDE_DELAY and havn't been for a long time.. 2001-09-04 15:50:46 +00:00
shiba
25567a30d1 Always turned on 8bit access card support for the fe driver
both i386/pc98, so options FE_8BIT_SUPPORT was deleted.

Reviewed by: nyan
2001-09-02 13:05:00 +00:00
peter
70aca15c21 Optionize UPAGES for the i386. As part of this I split some of the low
level implementation stuff out of machine/globaldata.h to avoid exposing
UPAGES to lots more places.  The end result is that we can double
the kernel stack size with 'options UPAGES=4' etc.

This is mainly being done for the benefit of a MFC to RELENG_4 at some
point.  -current doesn't really need this so much since each interrupt
runs on its own kstack.
2001-08-25 02:20:02 +00:00
peter
e91e9ba630 Add a cosmetic comment. 2001-08-02 23:54:23 +00:00
yokota
5ae9960da3 Use #ifdef DEV_SPLASH (from opt_splash.h) rather than
#if NSPLASH > 0 (from splash.h) to test the presence
of the splash driver.
2001-08-02 13:22:33 +00:00
peter
e00129231d Activate SSE/SIMD. This is the extra context switching support that
we are required to do if we let user processes use the extra 128 bit
registers etc.

This is the base part of the diff I got from:
  http://www.issei.org/issei/FreeBSD/sse.html
I believe this is by:  Mr. SUZUKI Issei <issei@issei.org>
SMP support apparently by: Takekazu KATO <kato@chino.it.okayama-u.ac.jp>
Test code by: NAKAMURA Kazushi <kaz@kobe1995.net>, see
  http://kobe1995.net/~kaz/FreeBSD/SSE.en.html

I have fixed a couple of style(9) deviations.  I have some followup
commits to fix a couple of non-style things.
2001-07-12 06:32:51 +00:00
peter
bbbe8875f0 Hints overhaul:
- Replace some very poorly thought out API hacks that should have been
  fixed a long while ago.
- Provide some much more flexible search functions (resource_find_*())
- Use strings for storage instead of an outgrowth of the rather
  inconvenient temporary ioconf table from config().  We already had a
  fallback to using strings before malloc/vm was running anyway.
2001-06-12 09:40:04 +00:00
bp
3bdd87f1b9 All NETSMB* options should use opt_netsmb.h file (the joy of multiple repos). 2001-04-13 10:53:56 +00:00
bp
a414f03f5d Import kernel part of SMB/CIFS requester.
Add smbfs(CIFS) filesystem.

Userland part will be in the ports tree for a while.

Obtained from:	smbfs-1.3.7-dev package.
2001-04-10 07:59:06 +00:00
peter
88a22127a8 Activate USER_LDT by default. The new thread libraries are going to
depend on this.  The linux ABI emulator tries to use it for some linux
binaries too.  VM86 had a bigger cost than this and it was made default
a while ago.

Reviewed by:	jhb, imp
2001-02-23 01:25:02 +00:00
peter
d3da30dfac change 'count eisa' to 'optional eisa' and update the only consumer
of 'NEISA' - userconfig.c.
While there, send some defunct code to the file history.
2001-01-29 08:19:02 +00:00
hm
01632e0088 Add experimental support for Eicon.Diehl DIVA 2.0 and 2.02 ISA PnP cards. 2001-01-26 13:22:18 +00:00
peter
802c028309 Convert apm from a bogus 'count' into a plain option. Clean out some
other cruft from the files.alpha and files.ia64 that were related to this.
2001-01-19 14:09:54 +00:00
peter
0d5e420364 Use #ifdef DEV_NPX from opt_npx.h instead of #if NNPX > 0 from npx.h 2001-01-19 13:19:02 +00:00
takawata
966ad05f24 Add PECOFF (WIN32 Execution file format) support.
To use it, some dll is needed. And currently, the dll is only for NetBSD.
So one more kernel module is needed.
For more infomation,
http://chiharu.haun.org/peace/ .

Reviewed by:	bp
2000-12-20 12:51:08 +00:00
hm
bee0dc7d0d update to i4b version 0.95.04 2000-10-09 13:41:07 +00:00
ps
ab88cc6719 Remove the NCPU, NAPIC, NBUS, NINTR config options. Make NAPIC,
NBUS, NINTR dynamic and set NCPU to a maximum of 16 under SMP.

Reviewed by:	peter
2000-09-22 23:40:10 +00:00
kato
dba64e78dc Added new options CPU_PPRO2CELERON and CPU_L2_LATENCY to support
Socket 8 to 370 converters.  When (1) CPU_PPRO2CELERON option is
defined, (2) Intel CPU is found and (3) CPU ID is 0x66?, L2 cache is
enabled through MSR 0x11e.  The L2 cache latency value can be
specified by CPU_L2_LATENCY option.  Default value of L2 cache latency
is 5.

These options are useful if you use Socket 8 to Socket 370 converter
(e.g. Power Leap's PL-Pro/II.)  Most PentiumPro BIOSs don't enable L2
cache of Mendocino Celeron CPUs because they don't know Celeron CPUs.
These options are needles if you use a Coppermine (FCPGA) Celeron or
PentiumIII, becuase the L2 cache enable bit is hard wired and L2 cache
is always enabled.
2000-06-13 09:10:37 +00:00
peter
6c41ef4ab2 Add option BROKEN_KEYBOARD_RESET to an opt_*.h file 2000-06-10 02:05:57 +00:00
jhb
3ab6c4cf33 Move UKBD_DFLT_KEYMAP into the options file since USB is machine
independent.  This allows the ukbd0 driver to compile on the Alpha.

Approved by:	o`brien (in principle)
2000-05-09 18:23:38 +00:00
msmith
087c82acdb Some more i386-only BIOS-friendliness:
- Add support for using the PCI BIOS functions for configuration space
   accesses, and make this the default.

 - Make PNPBIOS the default (obsoletes the PNPBIOS config option).

 - Add two new boot-time tunables to disable each of the above.
2000-04-16 20:48:33 +00:00
hm
9020eaa33d Remove useless PCVT_FREEBSD and PCVT_EMU_MOUSE. Add PCVT_GREENSAVER. 2000-03-31 09:02:39 +00:00
peter
35e00e91c8 Connect the ISA and PCI compatability shims to an option. In this case
it's options COMPAT_OLDISA and COMPAT_OLDPCI.  This is meant to be a
fairly strong incentive to update the older drivers to newbus, but doesn't
(quite) leave anybody hanging with no hardware support.  I was talking with
a few folks and I was encouraged to simply break or disable the shims but
that was a bit too drastic for my liking.
2000-03-19 13:07:12 +00:00
nsouch
59fc142474 Port of ppbus standalone framework to the newbus system.
Note1: the correct interrupt level is invoked correctly for each driver.
       For this purpose, drivers request the bus before being able to
       call BUS_SETUP_INTR and BUS_TEARDOWN_INTR call is forced by the ppbus
       core when drivers release it. Thus, when BUS_SETUP_INTR is called
       at ppbus driver level, ppbus checks that the caller owns the
       bus and stores the interrupt handler cookie (in order to unregister
       it later).

       Printing is impossible while plip link is up is still TRUE.
       vpo (ZIP driver) and lpt are make in such a way that
       using the ZIP and printing concurrently is permitted is also TRUE.

Note2: specific chipset detection is not done by default. PPC_PROBE_CHIPSET
       is now needed to force chipset detection. If set, the flags 0x40
       still avoid detection at boot.

Port of the pcf(4) driver to the newbus system (was previously directly
connected to the rootbus and attached by a bogus pcf_isa_probe function).
2000-01-14 00:18:06 +00:00
bde
9bf47018d7 Put COMPAT_SVR4 in opt_dontuse.h for the same reasons as IBCS2 and
COMPAT_LINUX are there.  It shouldn't be and isn't used after config
time, except to complicate the svr4 module makefile.

Moved options for emulators to a separate section.
2000-01-09 10:58:39 +00:00
yokota
a917920b0c - Add the device resume method. It supercedes the existing resume
routine which hooks the apm driver.
- Rename the PSM_HOOKAPM option to PSM_HOOKRESUME.
- Delete unnecessary #include.
1999-12-15 10:04:05 +00:00
hm
3c5fb5d611 update to isdn4bsd beta release 0.90
drivers which are likely to be ported to newbus are commented out for now
1999-12-14 20:52:41 +00:00
newton
96f2320560 Add support for compiling SVR4 as a static module
("AND THE CROWD GOES... uh.")

Tested by:	Joerg Wunsch <joerg_wunsch@interface-business.de>
1999-12-08 12:13:13 +00:00
yokota
6b891b634b - Added the following options; they have existed in syscons
for sometime, but haven't been registered here.

  SC_NORM_ATTR
  SC_NORM_REV_ATTR
  SC_KERNEL_CONS_ATTR
  SC_KERNEL_CONS_REV_ATTR

PR: kern/13176
1999-11-08 10:59:48 +00:00