NOTES revision 145743
1#
2# NOTES -- Lines that can be cut/pasted into kernel and hints configs.
3#
4# This file contains machine dependent kernel configuration notes.  For
5# machine independent notes, look in /sys/conf/NOTES.
6#
7# $FreeBSD: head/sys/pc98/conf/NOTES 145743 2005-05-01 04:00:12Z nyan $
8#
9
10#
11# This directive is mandatory; it defines the architecture to be
12# configured for; in this case, the 386 family based PC-98 and
13# compatibles.
14#
15machine		pc98 i386
16options 	PC98
17
18#
19# We want LINT to cover profiling as well.
20profile         2
21
22
23#####################################################################
24# SMP OPTIONS:
25#
26# The apic device enables the use of the I/O APIC for interrupt delivery.
27# The apic device can be used in both UP and SMP kernels, but is required
28# for SMP kernels.  Thus, the apic device is not strictly an SMP option,
29# but it is a prerequisite for SMP.
30#
31
32# Mandatory:
33device		apic			# I/O apic
34
35#
36# Watchdog routines.
37#
38options 	MP_WATCHDOG
39
40# Debugging options.
41#
42options		KDB_STOP_NMI		# Stop CPUS using NMI instead of IPI
43
44
45
46#####################################################################
47# CPU OPTIONS
48
49#
50# You must specify at least one CPU (the one you intend to run on);
51# deleting the specification for CPUs you don't need to use may make
52# parts of the system run faster.
53#
54cpu		I486_CPU
55cpu		I586_CPU		# aka Pentium(tm)
56cpu		I686_CPU		# aka Pentium Pro(tm)
57
58#
59# Options for CPU features.
60#
61# CPU_BLUELIGHTNING_3X enables triple-clock mode on IBM Blue Lightning
62# CPU if CPU supports it.  The default is double-clock mode on
63# BlueLightning CPU box.
64#
65# CPU_BLUELIGHTNING_FPU_OP_CACHE enables FPU operand cache on IBM
66# BlueLightning CPU.  It works only with Cyrix FPU, and this option
67# should not be used with Intel FPU.
68#
69# CPU_BTB_EN enables branch target buffer on Cyrix 5x86 (NOTE 1).
70#
71# CPU_CYRIX_NO_LOCK enables weak locking for the entire address space
72# of Cyrix 6x86 and 6x86MX CPUs by setting the NO_LOCK bit of CCR1.
73# Otherwise, the NO_LOCK bit of CCR1 is cleared.  (NOTE 3)
74#
75# CPU_DIRECT_MAPPED_CACHE sets L1 cache of Cyrix 486DLC CPU in direct
76# mapped mode.  Default is 2-way set associative mode.
77#
78# CPU_DISABLE_5X86_LSSER disables load store serialize (i.e., enables
79# reorder).  This option should not be used if you use memory mapped
80# I/O device(s).
81#
82# CPU_DISABLE_CMPXCHG disables the CMPXCHG instruction on > i386 IA32
83# machines.  VmWare 3.x seems to emulate this instruction poorly, causing
84# the guest OS to run very slowly.  This problem appears to be fixed in
85# VmWare 4.x, at least in version 4.5.2, so that enabling this option with
86# VmWare 4.x will result in locking operations to be 20-30 times slower.
87# Enabling this with an SMP kernel will cause the kernel to be unusable.
88#
89# CPU_DISABLE_SSE explicitly prevents I686_CPU from turning on SSE.
90#
91# CPU_ENABLE_SSE enables SSE/MMX2 instructions support.  This is default
92# on I686_CPU and above.
93#
94# CPU_FASTER_5X86_FPU enables faster FPU exception handler.
95#
96# CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products
97# for i386 machines.
98#
99# CPU_IORT defines I/O clock delay time (NOTE 1).  Default values of
100# I/O clock delay time on Cyrix 5x86 and 6x86 are 0 and 7,respectively
101# (no clock delay).
102#
103# CPU_L2_LATENCY specifies the L2 cache latency value.  This option is used
104# only when CPU_PPRO2CELERON is defined and Mendocino Celeron is detected.
105# The default value is 5.
106#
107# CPU_LOOP_EN prevents flushing the prefetch buffer if the destination
108# of a jump is already present in the prefetch buffer on Cyrix 5x86(NOTE
109# 1).
110#
111# CPU_PPRO2CELERON enables L2 cache of Mendocino Celeron CPUs.  This option
112# is useful when you use Socket 8 to Socket 370 converter, because most Pentium
113# Pro BIOSs do not enable L2 cache of Mendocino Celeron CPUs.
114#
115# CPU_RSTK_EN enables return stack on Cyrix 5x86 (NOTE 1).
116#
117# CPU_SUSP_HLT enables suspend on HALT.  If this option is set, CPU
118# enters suspend mode following execution of HALT instruction.
119#
120# CPU_UPGRADE_HW_CACHE eliminates unneeded cache flush instruction(s).
121#
122# CPU_WT_ALLOC enables write allocation on Cyrix 6x86/6x86MX and AMD
123# K5/K6/K6-2 CPUs.
124#
125# CYRIX_CACHE_WORKS enables CPU cache on Cyrix 486 CPUs with cache
126# flush at hold state.
127#
128# CYRIX_CACHE_REALLY_WORKS enables (1) CPU cache on Cyrix 486 CPUs
129# without cache flush at hold state, and (2) write-back CPU cache on
130# Cyrix 6x86 whose revision < 2.7 (NOTE 2).
131#
132# NO_F00F_HACK disables the hack that prevents Pentiums (and ONLY
133# Pentiums) from locking up when a LOCK CMPXCHG8B instruction is
134# executed.  This option is only needed if I586_CPU is also defined,
135# and should be included for any non-Pentium CPU that defines it.
136#
137# NO_MEMORY_HOLE is an optimisation for systems with AMD K6 processors
138# which indicates that the 15-16MB range is *definitely* not being
139# occupied by an ISA memory hole.
140#
141# NOTE 1: The options, CPU_BTB_EN, CPU_LOOP_EN, CPU_IORT,
142# CPU_LOOP_EN and CPU_RSTK_EN should not be used because of CPU bugs.
143# These options may crash your system.
144#
145# NOTE 2: If CYRIX_CACHE_REALLY_WORKS is not set, CPU cache is enabled
146# in write-through mode when revision < 2.7.  If revision of Cyrix
147# 6x86 >= 2.7, CPU cache is always enabled in write-back mode.
148#
149# NOTE 3: This option may cause failures for software that requires
150# locked cycles in order to operate correctly.
151#
152options 	CPU_BLUELIGHTNING_3X
153options 	CPU_BLUELIGHTNING_FPU_OP_CACHE
154options 	CPU_BTB_EN
155options 	CPU_DIRECT_MAPPED_CACHE
156options 	CPU_DISABLE_5X86_LSSER
157options 	CPU_DISABLE_CMPXCHG
158#options 	CPU_DISABLE_SSE
159options 	CPU_ENABLE_SSE
160options 	CPU_FASTER_5X86_FPU
161options 	CPU_I486_ON_386
162options 	CPU_IORT
163options 	CPU_L2_LATENCY=5
164options 	CPU_LOOP_EN
165options 	CPU_PPRO2CELERON
166options 	CPU_RSTK_EN
167options 	CPU_SUSP_HLT
168options 	CPU_UPGRADE_HW_CACHE
169options 	CPU_WT_ALLOC
170options 	CYRIX_CACHE_WORKS
171options 	CYRIX_CACHE_REALLY_WORKS
172#options 	NO_F00F_HACK
173
174# Debug options
175options 	NPX_DEBUG	# enable npx debugging
176
177#
178# PERFMON causes the driver for Pentium/Pentium Pro performance counters
179# to be compiled.  See perfmon(4) for more information.
180#
181options 	PERFMON
182
183
184#####################################################################
185# NETWORKING OPTIONS
186
187#
188# DEVICE_POLLING adds support for mixed interrupt-polling handling
189# of network device drivers, which has significant benefits in terms
190# of robustness to overloads and responsivity, as well as permitting
191# accurate scheduling of the CPU time between kernel network processing
192# and other activities.  The drawback is a moderate (up to 1/HZ seconds)
193# potential increase in response times.
194# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
195# to achieve smoother behaviour.
196# Additionally, you can enable/disable polling at runtime with the
197# sysctl variable kern.polling.enable (defaults off), and select
198# the CPU fraction reserved to userland with the sysctl variable
199# kern.polling.user_frac (default 50, range 0..100).
200#
201# Not all device drivers support this mode of operation at the time of
202# this writing.  See polling(4) for more details.
203
204options 	DEVICE_POLLING
205
206
207#####################################################################
208# CLOCK OPTIONS
209
210# The following options are used for debugging clock behavior only, and
211# should not be used for production systems.
212
213# CLK_CALIBRATION_LOOP causes clock calibration to be run in a loop at
214# startup until the user presses a key.  (The i8254 clock is always
215# calibrated relative to the RTC (mc146818a) and this option causes the
216# calibration to be repeated.)
217options 	CLK_CALIBRATION_LOOP
218
219# CLK_USE_I8254_CALIBRATION causes the calibrated frequency of the i8254
220# clock to actually be used.
221options 	CLK_USE_I8254_CALIBRATION
222
223
224#####################################################################
225# MISCELLANEOUS DEVICES AND OPTIONS
226
227device		speaker		#Play IBM BASIC-style noises out your speaker
228hint.speaker.0.at="isa"
229hint.speaker.0.port="0x35"
230device		gzip		#Exec gzipped a.out's.  REQUIRES COMPAT_AOUT!
231device		apm_saver	# Requires APM
232
233
234#####################################################################
235# HARDWARE BUS CONFIGURATION
236
237#
238# ISA bus
239#
240device		isa
241
242#
243# Options for `isa':
244#
245# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
246# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
247# This option breaks suspend/resume on some portables.
248#
249# MAXMEM specifies the amount of RAM on the machine; if this is not
250# specified, FreeBSD will first read the amount of memory from the CMOS
251# RAM, so the amount of memory will initially be limited to 64MB or 16MB
252# depending on the BIOS.  If the BIOS reports 64MB, a memory probe will
253# then attempt to detect the installed amount of RAM.  If this probe
254# fails to detect >64MB RAM you will have to use the MAXMEM option.
255# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
256# be 131072 (128 * 1024).
257#
258# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
259# reset the CPU for reboot.  This is needed on some systems with broken
260# keyboard controllers.
261
262options 	AUTO_EOI_1
263
264options 	MAXMEM=(128*1024)
265#options 	BROKEN_KEYBOARD_RESET
266options 	EPSON_BOUNCEDMA
267options 	EPSON_MEMWIN
268
269#
270# PCI bus & PCI options:
271#
272device		pci
273
274#
275# AGP GART support
276device		agp
277
278
279#####################################################################
280# HARDWARE DEVICE CONFIGURATION
281
282# PC98 keyboard
283device		pckbd
284hint.pckbd.0.at="isa"
285hint.pckbd.0.port="0x041"
286hint.pckbd.0.irq="1"
287
288# These options are valid for other keyboard drivers as well.
289options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
290options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
291
292# GDC screen
293device		gdc
294hint.gdc.0.at="isa"
295options 	LINE30
296
297#
298# The Numeric Processing eXtension driver.  This is non-optional.
299device		npx
300
301#
302# `flags' for npx0:
303#	0x01	don't use the npx registers to optimize bcopy.
304#	0x02	don't use the npx registers to optimize bzero.
305#	0x04	don't use the npx registers to optimize copyin or copyout.
306# The npx registers are normally used to optimize copying and zeroing when
307# all of the following conditions are satisfied:
308#	I586_CPU is an option
309#	the cpu is an i586 (perhaps not a Pentium)
310#	the probe for npx0 succeeds
311#	INT 16 exception handling works.
312# Then copying and zeroing using the npx registers is normally 30-100% faster.
313# The flags can be used to control cases where it doesn't work or is slower.
314# Setting them at boot time using hints works right (the optimizations
315# are not used until later in the bootstrap when npx0 is attached).
316# Flag 0x08 automatically disables the i586 optimized routines.
317#
318
319#
320# Optional devices:
321#
322
323# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support.  This will create
324# the /dev/3dfx0 device to work with glide implementations.  This should get
325# linked to /dev/3dfx and /dev/voodoo.  Note that this is not the same as
326# the tdfx DRI module from XFree86 and is completely unrelated.
327#
328# To enable Linuxulator support, one must also include COMPAT_LINUX in the
329# config as well, or you will not have the dependencies.  The other option
330# is to load both as modules.
331
332device		tdfx			# Enable 3Dfx Voodoo support
333options 	TDFX_LINUX		# Enable Linuxulator support
334
335# Direct Rendering modules for 3D acceleration.
336device		drm		# DRM core module required by DRM drivers
337device		mach64drm	# ATI Rage Pro, Rage Mobility P/M, Rage XL
338device		mgadrm		# AGP Matrox G200, G400, G450, G550
339device		r128drm		# ATI Rage 128
340device		radeondrm	# ATI Radeon up to 9200
341device		sisdrm		# SiS 300/305, 540, 630
342device		tdfxdrm		# 3dfx Voodoo 3/4/5 and Banshee
343options 	DRM_DEBUG	# Include debug printfs (slow)
344
345#
346# Bus mouse
347#
348device		mse
349hint.mse.0.at="isa"
350hint.mse.0.port="0x7fd9"
351hint.mse.0.irq="13"
352
353#
354# Network interfaces:
355#
356
357# ar:   Arnet SYNC/570i hdlc sync 2/4 port V.35/X.21 serial driver
358#       (requires sppp)
359# cp:   Cronyx Tau-PCI sync single/dual/four port
360#       V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1
361#       serial adaptor (requires sppp (default), or NETGRAPH if
362#       NETGRAPH_CRONYX is configured)
363# ed:   Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
364#       HP PC Lan+, various PC Card devices (refer to etc/defaults/pccard.conf)
365#       (requires miibus)
366# ie:   AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210;
367#       Intel EtherExpress
368# lnc:  Lance/PCnet cards (Isolan, Novell NE2100, NE32-VL, AMD Am7990 and
369#       Am79C960)
370# oltr: Olicom ISA token-ring adapters OC-3115, OC-3117, OC-3118 and OC-3133.
371#       Olicom PCI token-ring adapters OC-3136, OC-3137, OC-3139, OC-3140,
372#       OC-3141, OC-3540 and OC-3250.
373# sbni: Granch SBNI12-xx ISA and PCI adapters
374# sr:   RISCom/N2 hdlc sync 1/2 port V.35/X.21 serial driver (requires sppp)
375
376# Order for ISA/EISA devices is important here
377
378device		ar
379device		cp
380device		ed
381#options 	ED_NO_MIIBUS		# Disable ed miibus support
382hint.ed.0.at="isa"
383hint.ed.0.port="0x280"
384hint.ed.0.irq="5"
385hint.ed.0.maddr="0xd8000"
386device		ie			# Hints only required for Starlan
387hint.ie.2.at="isa"
388hint.ie.2.port="0x300"
389hint.ie.2.irq="5"
390hint.ie.2.maddr="0xd0000"
391device		lnc
392hint.lnc.0.at="isa"
393hint.lnc.0.port="0x280"
394hint.lnc.0.irq="10"
395hint.lnc.0.drq="0"
396device		sbni
397hint.sbni.0.at="isa"
398hint.sbni.0.port="0x210"
399hint.sbni.0.irq="0xefdead"
400hint.sbni.0.flags="0"
401device		snc
402hint.snc.0.at="isa"
403hint.snc.0.port="0x888"
404hint.snc.0.irq="6"
405hint.snc.0.maddr="0xc0000"
406device		sr
407device		oltr
408
409#
410# SCSI host adapters:
411#
412# ct: WD33C93[ABC] based SCSI host adapters.
413# ncv: NCR 53C500 based SCSI host adapters.
414# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters.
415# stg: TMC 18C30, 18C50 based SCSI host adapters.
416
417device		ct
418hint.ct.0.at="isa"
419device		ncv
420device		nsp
421device		stg
422
423#
424# SafeNet crypto driver: can be moved to the MI NOTES as soon as
425# it's tested on a big-endian machine
426#
427device		safe		# SafeNet 1141
428options 	SAFE_DEBUG	# enable debugging support: hw.safe.debug
429options 	SAFE_RNDTEST	# enable rndtest support
430
431#####################################################################
432
433#
434# Miscellaneous hardware:
435#
436# apm: Laptop Advanced Power Management (experimental)
437# pmtimer: Timer device driver for power management events (APM or ACPI)
438# cy: Cyclades serial driver
439# digi: Digiboard driver
440
441# Notes on APM
442#  The flags takes the following meaning for apm0:
443#    0x0020  Statclock is broken.
444
445device		apm
446hint.apm.0.flags="0x20"
447device		canbus
448device		canbepm
449device		cy
450options 	CY_PCI_FASTINTR		# Use with cy_pci unless irq is shared
451device		digi
452# BIOS & FEP/OS components of device digi.
453device		digi_CX
454device		digi_CX_PCI
455device		digi_EPCX
456device		digi_EPCX_PCI
457device		digi_Xe
458device		digi_Xem
459device		digi_Xr
460device		olpt
461hint.olpt.0.at="isa"
462hint.olpt.0.port="0x040"
463device		pmc
464hint.pmc.0.at="isa"
465hint.pmc.0.port="0x8f0"
466device		pmtimer			# Adjust system timer at wakeup time
467# sx device is i386 and pc98 only at the moment.
468device		sx
469options 	SX_DEBUG
470
471#
472# Laptop/Notebook options:
473#
474# See also:
475#  apm under `Miscellaneous hardware'
476# above.
477
478# For older notebooks that signal a powerfail condition (external
479# power supply dropped, or battery state low) by issuing an NMI:
480
481options 	POWERFAIL_NMI	# make it beep instead of panicing
482
483#
484# PC Card/PCMCIA
485# (OLDCARD)
486#
487# card: pccard slots
488# pcic: isa/pccard bridge
489device		pcic
490hint.pcic.0.at="isa"
491#hint.pcic.1.at="isa"
492device		card
493
494#---------------------------------------------------------------------------
495# ISDN4BSD
496#
497# See /usr/share/examples/isdn/ROADMAP for an introduction to isdn4bsd.
498#
499# i4b passive ISDN cards support contains the following hardware drivers:
500#
501#	isic  - Siemens/Infineon ISDN ISAC/HSCX/IPAC chipset driver
502#	iwic  - Winbond W6692 PCI bus ISDN S/T interface controller
503#	ifpi  - AVM Fritz!Card PCI driver
504#	ifpi2  - AVM Fritz!Card PCI version 2 driver
505#	ihfc  - Cologne Chip HFC ISA/ISA-PnP chipset driver
506#	ifpnp - AVM Fritz!Card PnP driver
507#	itjc  - Siemens ISAC / TJNet Tiger300/320 chipset
508#
509# i4b active ISDN cards support contains the following hardware drivers:
510#
511#	iavc  - AVM B1 PCI, AVM B1 ISA, AVM T1
512#
513# Note that the ``options'' (if given) and ``device'' lines must BOTH
514# be uncommented to enable support for a given card !
515#
516# In addition to a hardware driver (and probably an option) the mandatory
517# ISDN protocol stack devices and the mandatory support device must be
518# enabled as well as one or more devices from the optional devices section.
519#
520#---------------------------------------------------------------------------
521#	isic driver (Siemens/Infineon chipsets)
522#
523device	isic
524#
525# PCI bus Cards:
526# --------------
527#
528# ELSA MicroLink ISDN/PCI (same as ELSA QuickStep 1000pro PCI)
529options 	ELSA_QS1PCI
530#
531#---------------------------------------------------------------------------
532#	ifpnp driver for AVM Fritz!Card PnP
533#
534# AVM Fritz!Card PnP
535device		ifpnp
536#
537#---------------------------------------------------------------------------
538#	ihfc driver for Cologne Chip ISA chipsets (experimental!)
539#
540# Teles 16.3c ISA PnP
541# AcerISDN P10 ISA PnP
542# TELEINT ISDN SPEED No.1
543device		ihfc
544#
545#---------------------------------------------------------------------------
546#	ifpi driver for AVM Fritz!Card PCI
547#
548# AVM Fritz!Card PCI
549device		ifpi
550#
551#---------------------------------------------------------------------------
552#	ifpi2 driver for AVM Fritz!Card PCI version 2
553#
554# AVM Fritz!Card PCI version 2
555device		ifpi2
556#
557#---------------------------------------------------------------------------
558#	iwic driver for Winbond W6692 chipset
559#
560# ASUSCOM P-IN100-ST-D (and other Winbond W6692 based cards)
561device		iwic
562#
563#---------------------------------------------------------------------------
564#	itjc driver for Siemens ISAC / TJNet Tiger300/320 chipset
565#
566# Traverse Technologies NETjet-S
567# Teles PCI-TJ
568device		itjc
569#
570#---------------------------------------------------------------------------
571#	iavc driver (AVM active cards, needs i4bcapi driver!)
572#
573device		iavc
574#
575#---------------------------------------------------------------------------
576#	ISDN Protocol Stack - mandatory for all hardware drivers
577#
578# Q.921 / layer 2 - i4b passive cards D channel handling
579device		i4bq921
580#
581# Q.931 / layer 3 - i4b passive cards D channel handling
582device		i4bq931
583#
584# layer 4 - i4b common passive and active card handling
585device		i4b
586#
587#---------------------------------------------------------------------------
588#	ISDN devices - mandatory for all hardware drivers
589#
590# userland driver to do ISDN tracing (for passive cards only)
591device		i4btrc
592options 	NI4BTRC=4
593#
594# userland driver to control the whole thing
595device		i4bctl
596#
597#---------------------------------------------------------------------------
598#	ISDN devices - optional
599#
600# userland driver for access to raw B channel
601device		i4brbch
602options 	NI4BRBCH=4
603#
604# userland driver for telephony
605device		i4btel
606options 	NI4BTEL=2
607#
608# network driver for IP over raw HDLC ISDN
609device		i4bipr
610options 	NI4BIPR=4
611# enable VJ header compression detection for ipr i/f
612options 	IPR_VJ
613# enable logging of the first n IP packets to isdnd (n=32 here)
614options 	IPR_LOG=32
615#
616# network driver for sync PPP over ISDN; requires an equivalent
617# number of sppp device to be configured
618device		i4bisppp
619options 	NI4BISPPP=4
620#
621# B-channel interface to the netgraph subsystem
622device		i4bing
623options 	NI4BING=2
624#
625# CAPI driver needed for active ISDN cards (see iavc driver above)
626device		i4bcapi
627#
628#---------------------------------------------------------------------------
629
630#
631# Set the number of PV entries per process.  Increasing this can
632# stop panics related to heavy use of shared memory.  However, that can
633# (combined with large amounts of physical memory) cause panics at
634# boot time due the kernel running out of VM space.
635#
636# If you're tweaking this, you might also want to increase the sysctls
637# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target".
638#
639# The value below is the one more than the default.
640#
641options 	PMAP_SHPGPERPROC=201
642
643#
644# Change the size of the kernel virtual address space.  Due to
645# constraints in loader(8) on i386, this must be a multiple of 4.
646# 256 = 1 GB of kernel address space.  Increasing this also causes
647# a reduction of the address space in user processes.  512 splits
648# the 4GB cpu address space in half (2GB user, 2GB kernel).
649#
650options 	KVA_PAGES=260
651
652
653#####################################################################
654# ABI Emulation
655
656# Enable iBCS2 runtime support for SCO and ISC binaries
657options 	IBCS2
658
659# Emulate spx device for client side of SVR3 local X interface
660options 	SPX_HACK
661
662# Enable Linux ABI emulation
663options 	COMPAT_LINUX
664
665# Enable i386 a.out binary support
666options 	COMPAT_AOUT
667
668# Enable the linux-like proc filesystem support (requires COMPAT_LINUX
669# and PSEUDOFS)
670options 	LINPROCFS
671
672#
673# SysVR4 ABI emulation
674#
675# The svr4 ABI emulator can be statically compiled into the kernel or loaded as
676# a KLD module.
677# The STREAMS network emulation code can also be compiled statically or as a
678# module.  If loaded as a module, it must be loaded before the svr4 module
679# (the /usr/sbin/svr4 script does this for you).  If compiling statically,
680# the `streams' device must be configured into any kernel which also
681# specifies COMPAT_SVR4.  It is possible to have a statically-configured
682# STREAMS device and a dynamically loadable svr4 emulator;  the /usr/sbin/svr4
683# script understands that it doesn't need to load the `streams' module under
684# those circumstances.
685# Caveat:  At this time, `options KTRACE' is required for the svr4 emulator
686# (whether static or dynamic).
687#
688options 	COMPAT_SVR4	# build emulator statically
689options 	DEBUG_SVR4	# enable verbose debugging
690device		streams		# STREAMS network driver (required for svr4).
691
692
693#####################################################################
694# VM OPTIONS
695
696# Disable the 4 MByte page PSE CPU feature.  The PSE feature allows the
697# kernel to use 4 MByte pages to map the kernel instead of 4k pages.
698# This saves on the amount of memory needed for page tables needed to
699# map the kernel.  You should only disable this feature as a temporary
700# workaround if you are having problems with it enabled.
701#
702#options 	DISABLE_PSE
703
704# Disable the global pages PGE CPU feature.  The PGE feature allows pages
705# to be marked with the PG_G bit.  TLB entries for these pages are not
706# flushed from the cache when %cr3 is reloaded.  This can make context
707# switches less expensive.  You should only disable this feature as a
708# temporary workaround if you are having problems with it enabled.
709#
710#options 	DISABLE_PG_G
711
712# KSTACK_PAGES is the number of memory pages to assign to the kernel
713# stack of each thread.
714
715options 	KSTACK_PAGES=3
716
717#####################################################################
718
719# More undocumented options for linting.
720# Note that documenting these are not considered an affront.
721
722options 	FB_INSTALL_CDEV		# install a CDEV entry in /dev
723
724# PECOFF module (Win32 Execution Format)
725options 	PECOFF_SUPPORT
726options 	PECOFF_DEBUG
727
728options 	I4B_SMP_WORKAROUND
729options 	I586_PMC_GUPROF=0x70000
730options 	KBDIO_DEBUG=2
731options 	KBD_MAXRETRY=4
732options 	KBD_MAXWAIT=6
733options 	KBD_RESETDELAY=201
734
735options 	TIMER_FREQ=((14318182+6)/12)
736
737options 	VM_KMEM_SIZE
738options 	VM_KMEM_SIZE_MAX
739options 	VM_KMEM_SIZE_SCALE
740
741
742# The I/O device
743device		io
744
745
746#####################################################################
747# Devices we don't want to deal with
748
749nodevice	atkbdc
750nodevice	atkbd
751nodevice	psm
752nodevice	vga
753nodevice	bt
754nodevice	adw
755nodevice	aha
756nodevice	ahb
757nodevice	ahd
758nodevice	mpt
759nodevice	trm
760nodevice	wds
761nodevice	asr
762nodevice	dpt
763nodevice	ciss
764nodevice	iir
765nodevice	mly
766nodevice	ida		# Compaq Smart RAID
767nodevice	mlx		# Mylex DAC960
768nodevice	amr		# AMI MegaRAID
769nodevice	twe		# 3ware ATA RAID
770nodevice	ataraid
771nodevice	cm
772nodevice	cs
773nodevice	ex
774nodevice	fea
775nodevice	cbb
776nodevice	pccard
777nodevice	cardbus
778nodevice	intpm
779nodevice	alpm
780nodevice	ichsmb
781nodevice	viapm
782nodevice	amdpm
783nodevice	nfpm
784
785
786#####################################################################
787# Options we don't want to deal with
788
789nooption	VGA_DEBUG
790nooption	VGA_WIDTH90
791nooption	VGA_SLOW_IOACCESS
792nooption	VGA_ALT_SEQACCESS
793nooption	PSM_RESETAFTERSUSPEND
794nooption	PSM_HOOKRESUME
795nooption	ATKBD_DFLT_KEYMAP
796nooption	AHD_DEBUG
797nooption	AHD_DEBUG_OPTS
798nooption	AHD_REG_PRETTY_PRINT
799nooption	ADW_ALLOW_MEMIO
800nooption	DPT_LOST_IRQ
801nooption	DPT_RESET_HBA
802nooption	DPT_TIMEOUT_FACTOR
803nooption	AAC_DEBUG
804nooption	ACPI_MAX_THREADS
805
806
807#####################################################################
808# Make options we don't want to deal with
809
810nomakeoption	ATKBD_DFLT_KEYMAP
811