NOTES revision 148235
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 148235 2005-07-21 11:13:12Z 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_FASTER_5X86_FPU enables faster FPU exception handler.
92#
93# CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products
94# for i386 machines.
95#
96# CPU_IORT defines I/O clock delay time (NOTE 1).  Default values of
97# I/O clock delay time on Cyrix 5x86 and 6x86 are 0 and 7,respectively
98# (no clock delay).
99#
100# CPU_L2_LATENCY specifies the L2 cache latency value.  This option is used
101# only when CPU_PPRO2CELERON is defined and Mendocino Celeron is detected.
102# The default value is 5.
103#
104# CPU_LOOP_EN prevents flushing the prefetch buffer if the destination
105# of a jump is already present in the prefetch buffer on Cyrix 5x86(NOTE
106# 1).
107#
108# CPU_PPRO2CELERON enables L2 cache of Mendocino Celeron CPUs.  This option
109# is useful when you use Socket 8 to Socket 370 converter, because most Pentium
110# Pro BIOSs do not enable L2 cache of Mendocino Celeron CPUs.
111#
112# CPU_RSTK_EN enables return stack on Cyrix 5x86 (NOTE 1).
113#
114# CPU_SUSP_HLT enables suspend on HALT.  If this option is set, CPU
115# enters suspend mode following execution of HALT instruction.
116#
117# CPU_UPGRADE_HW_CACHE eliminates unneeded cache flush instruction(s).
118#
119# CPU_WT_ALLOC enables write allocation on Cyrix 6x86/6x86MX and AMD
120# K5/K6/K6-2 CPUs.
121#
122# CYRIX_CACHE_WORKS enables CPU cache on Cyrix 486 CPUs with cache
123# flush at hold state.
124#
125# CYRIX_CACHE_REALLY_WORKS enables (1) CPU cache on Cyrix 486 CPUs
126# without cache flush at hold state, and (2) write-back CPU cache on
127# Cyrix 6x86 whose revision < 2.7 (NOTE 2).
128#
129# NO_F00F_HACK disables the hack that prevents Pentiums (and ONLY
130# Pentiums) from locking up when a LOCK CMPXCHG8B instruction is
131# executed.  This option is only needed if I586_CPU is also defined,
132# and should be included for any non-Pentium CPU that defines it.
133#
134# NO_MEMORY_HOLE is an optimisation for systems with AMD K6 processors
135# which indicates that the 15-16MB range is *definitely* not being
136# occupied by an ISA memory hole.
137#
138# NOTE 1: The options, CPU_BTB_EN, CPU_LOOP_EN, CPU_IORT,
139# CPU_LOOP_EN and CPU_RSTK_EN should not be used because of CPU bugs.
140# These options may crash your system.
141#
142# NOTE 2: If CYRIX_CACHE_REALLY_WORKS is not set, CPU cache is enabled
143# in write-through mode when revision < 2.7.  If revision of Cyrix
144# 6x86 >= 2.7, CPU cache is always enabled in write-back mode.
145#
146# NOTE 3: This option may cause failures for software that requires
147# locked cycles in order to operate correctly.
148#
149options 	CPU_BLUELIGHTNING_3X
150options 	CPU_BLUELIGHTNING_FPU_OP_CACHE
151options 	CPU_BTB_EN
152options 	CPU_DIRECT_MAPPED_CACHE
153options 	CPU_DISABLE_5X86_LSSER
154options 	CPU_DISABLE_CMPXCHG
155#options 	CPU_DISABLE_SSE
156options 	CPU_FASTER_5X86_FPU
157options 	CPU_I486_ON_386
158options 	CPU_IORT
159options 	CPU_L2_LATENCY=5
160options 	CPU_LOOP_EN
161options 	CPU_PPRO2CELERON
162options 	CPU_RSTK_EN
163options 	CPU_SUSP_HLT
164options 	CPU_UPGRADE_HW_CACHE
165options 	CPU_WT_ALLOC
166options 	CYRIX_CACHE_WORKS
167options 	CYRIX_CACHE_REALLY_WORKS
168#options 	NO_F00F_HACK
169
170# Debug options
171options 	NPX_DEBUG	# enable npx debugging
172
173#
174# PERFMON causes the driver for Pentium/Pentium Pro performance counters
175# to be compiled.  See perfmon(4) for more information.
176#
177options 	PERFMON
178
179
180#####################################################################
181# NETWORKING OPTIONS
182
183#
184# DEVICE_POLLING adds support for mixed interrupt-polling handling
185# of network device drivers, which has significant benefits in terms
186# of robustness to overloads and responsivity, as well as permitting
187# accurate scheduling of the CPU time between kernel network processing
188# and other activities.  The drawback is a moderate (up to 1/HZ seconds)
189# potential increase in response times.
190# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
191# to achieve smoother behaviour.
192# Additionally, you can enable/disable polling at runtime with the
193# sysctl variable kern.polling.enable (defaults off), and select
194# the CPU fraction reserved to userland with the sysctl variable
195# kern.polling.user_frac (default 50, range 0..100).
196#
197# Not all device drivers support this mode of operation at the time of
198# this writing.  See polling(4) for more details.
199
200options 	DEVICE_POLLING
201
202
203#####################################################################
204# CLOCK OPTIONS
205
206# The following options are used for debugging clock behavior only, and
207# should not be used for production systems.
208
209# CLK_CALIBRATION_LOOP causes clock calibration to be run in a loop at
210# startup until the user presses a key.  (The i8254 clock is always
211# calibrated relative to the RTC (mc146818a) and this option causes the
212# calibration to be repeated.)
213options 	CLK_CALIBRATION_LOOP
214
215# CLK_USE_I8254_CALIBRATION causes the calibrated frequency of the i8254
216# clock to actually be used.
217options 	CLK_USE_I8254_CALIBRATION
218
219
220#####################################################################
221# MISCELLANEOUS DEVICES AND OPTIONS
222
223device		speaker		#Play IBM BASIC-style noises out your speaker
224hint.speaker.0.at="isa"
225hint.speaker.0.port="0x35"
226device		gzip		#Exec gzipped a.out's.  REQUIRES COMPAT_AOUT!
227device		apm_saver	# Requires APM
228
229
230#####################################################################
231# HARDWARE BUS CONFIGURATION
232
233#
234# ISA bus
235#
236device		isa
237
238#
239# Options for `isa':
240#
241# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
242# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
243# This option breaks suspend/resume on some portables.
244#
245# MAXMEM specifies the amount of RAM on the machine; if this is not
246# specified, FreeBSD will first read the amount of memory from the CMOS
247# RAM, so the amount of memory will initially be limited to 64MB or 16MB
248# depending on the BIOS.  If the BIOS reports 64MB, a memory probe will
249# then attempt to detect the installed amount of RAM.  If this probe
250# fails to detect >64MB RAM you will have to use the MAXMEM option.
251# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
252# be 131072 (128 * 1024).
253#
254# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
255# reset the CPU for reboot.  This is needed on some systems with broken
256# keyboard controllers.
257
258options 	AUTO_EOI_1
259
260options 	MAXMEM=(128*1024)
261#options 	BROKEN_KEYBOARD_RESET
262options 	EPSON_BOUNCEDMA
263options 	EPSON_MEMWIN
264
265#
266# PCI bus & PCI options:
267#
268device		pci
269
270#
271# AGP GART support
272device		agp
273
274
275#####################################################################
276# HARDWARE DEVICE CONFIGURATION
277
278# PC98 keyboard
279device		pckbd
280hint.pckbd.0.at="isa"
281hint.pckbd.0.port="0x041"
282hint.pckbd.0.irq="1"
283
284# These options are valid for other keyboard drivers as well.
285options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
286options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
287
288# GDC screen
289device		gdc
290hint.gdc.0.at="isa"
291options 	LINE30
292
293#
294# The Numeric Processing eXtension driver.  This is non-optional.
295device		npx
296
297#
298# `flags' for npx0:
299#	0x01	don't use the npx registers to optimize bcopy.
300#	0x02	don't use the npx registers to optimize bzero.
301#	0x04	don't use the npx registers to optimize copyin or copyout.
302# The npx registers are normally used to optimize copying and zeroing when
303# all of the following conditions are satisfied:
304#	I586_CPU is an option
305#	the cpu is an i586 (perhaps not a Pentium)
306#	the probe for npx0 succeeds
307#	INT 16 exception handling works.
308# Then copying and zeroing using the npx registers is normally 30-100% faster.
309# The flags can be used to control cases where it doesn't work or is slower.
310# Setting them at boot time using hints works right (the optimizations
311# are not used until later in the bootstrap when npx0 is attached).
312# Flag 0x08 automatically disables the i586 optimized routines.
313#
314
315#
316# Optional devices:
317#
318
319# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support.  This will create
320# the /dev/3dfx0 device to work with glide implementations.  This should get
321# linked to /dev/3dfx and /dev/voodoo.  Note that this is not the same as
322# the tdfx DRI module from XFree86 and is completely unrelated.
323#
324# To enable Linuxulator support, one must also include COMPAT_LINUX in the
325# config as well, or you will not have the dependencies.  The other option
326# is to load both as modules.
327
328device		tdfx			# Enable 3Dfx Voodoo support
329options 	TDFX_LINUX		# Enable Linuxulator support
330
331# Direct Rendering modules for 3D acceleration.
332device		drm		# DRM core module required by DRM drivers
333device		mach64drm	# ATI Rage Pro, Rage Mobility P/M, Rage XL
334device		mgadrm		# AGP Matrox G200, G400, G450, G550
335device		r128drm		# ATI Rage 128
336device		radeondrm	# ATI Radeon
337device		sisdrm		# SiS 300/305, 540, 630
338device		tdfxdrm		# 3dfx Voodoo 3/4/5 and Banshee
339options 	DRM_DEBUG	# Include debug printfs (slow)
340
341#
342# Bus mouse
343#
344device		mse
345hint.mse.0.at="isa"
346hint.mse.0.port="0x7fd9"
347hint.mse.0.irq="13"
348
349#
350# Network interfaces:
351#
352
353# ar:   Arnet SYNC/570i hdlc sync 2/4 port V.35/X.21 serial driver
354#       (requires sppp)
355# cp:   Cronyx Tau-PCI sync single/dual/four port
356#       V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1
357#       serial adaptor (requires sppp (default), or NETGRAPH if
358#       NETGRAPH_CRONYX is configured)
359# ed:   Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
360#       HP PC Lan+, various PC Card devices (refer to etc/defaults/pccard.conf)
361#       (requires miibus)
362# ie:   AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210;
363#       Intel EtherExpress
364# lnc:  Lance/PCnet cards (Isolan, Novell NE2100, NE32-VL, AMD Am7990 and
365#       Am79C960)
366# oltr: Olicom ISA token-ring adapters OC-3115, OC-3117, OC-3118 and OC-3133.
367#       Olicom PCI token-ring adapters OC-3136, OC-3137, OC-3139, OC-3140,
368#       OC-3141, OC-3540 and OC-3250.
369# sbni: Granch SBNI12-xx ISA and PCI adapters
370# sr:   RISCom/N2 hdlc sync 1/2 port V.35/X.21 serial driver (requires sppp)
371
372# Order for ISA/EISA devices is important here
373
374device		ar
375device		cp
376device		ed
377#options 	ED_NO_MIIBUS		# Disable ed miibus support
378hint.ed.0.at="isa"
379hint.ed.0.port="0x280"
380hint.ed.0.irq="5"
381hint.ed.0.maddr="0xd8000"
382device		ie			# Hints only required for Starlan
383hint.ie.2.at="isa"
384hint.ie.2.port="0x300"
385hint.ie.2.irq="5"
386hint.ie.2.maddr="0xd0000"
387device		lnc
388hint.lnc.0.at="isa"
389hint.lnc.0.port="0x280"
390hint.lnc.0.irq="10"
391hint.lnc.0.drq="0"
392device		sbni
393hint.sbni.0.at="isa"
394hint.sbni.0.port="0x210"
395hint.sbni.0.irq="0xefdead"
396hint.sbni.0.flags="0"
397device		snc
398hint.snc.0.at="isa"
399hint.snc.0.port="0x888"
400hint.snc.0.irq="6"
401hint.snc.0.maddr="0xc0000"
402device		sr
403device		oltr
404
405#
406# SCSI host adapters:
407#
408# ct: WD33C93[ABC] based SCSI host adapters.
409# ncv: NCR 53C500 based SCSI host adapters.
410# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters.
411# stg: TMC 18C30, 18C50 based SCSI host adapters.
412
413device		ct
414hint.ct.0.at="isa"
415device		ncv
416device		nsp
417device		stg
418
419#
420# SafeNet crypto driver: can be moved to the MI NOTES as soon as
421# it's tested on a big-endian machine
422#
423device		safe		# SafeNet 1141
424options 	SAFE_DEBUG	# enable debugging support: hw.safe.debug
425options 	SAFE_RNDTEST	# enable rndtest support
426
427#####################################################################
428
429#
430# Miscellaneous hardware:
431#
432# apm: Laptop Advanced Power Management (experimental)
433# pmtimer: Timer device driver for power management events (APM or ACPI)
434# cy: Cyclades serial driver
435# digi: Digiboard driver
436
437# Notes on APM
438#  The flags takes the following meaning for apm0:
439#    0x0020  Statclock is broken.
440
441device		apm
442hint.apm.0.flags="0x20"
443device		canbus
444device		canbepm
445device		cy
446options 	CY_PCI_FASTINTR		# Use with cy_pci unless irq is shared
447device		digi
448# BIOS & FEP/OS components of device digi.
449device		digi_CX
450device		digi_CX_PCI
451device		digi_EPCX
452device		digi_EPCX_PCI
453device		digi_Xe
454device		digi_Xem
455device		digi_Xr
456device		olpt
457hint.olpt.0.at="isa"
458hint.olpt.0.port="0x040"
459device		pmc
460hint.pmc.0.at="isa"
461hint.pmc.0.port="0x8f0"
462device		pmtimer			# Adjust system timer at wakeup time
463# sx device is i386 and pc98 only at the moment.
464device		sx
465options 	SX_DEBUG
466
467#
468# Laptop/Notebook options:
469#
470# See also:
471#  apm under `Miscellaneous hardware'
472# above.
473
474# For older notebooks that signal a powerfail condition (external
475# power supply dropped, or battery state low) by issuing an NMI:
476
477options 	POWERFAIL_NMI	# make it beep instead of panicing
478
479#
480# PC Card/PCMCIA
481# (OLDCARD)
482#
483# card: pccard slots
484# pcic: isa/pccard bridge
485device		pcic
486hint.pcic.0.at="isa"
487#hint.pcic.1.at="isa"
488device		card
489
490#---------------------------------------------------------------------------
491# ISDN4BSD
492#
493# See /usr/share/examples/isdn/ROADMAP for an introduction to isdn4bsd.
494#
495# i4b passive ISDN cards support contains the following hardware drivers:
496#
497#	isic  - Siemens/Infineon ISDN ISAC/HSCX/IPAC chipset driver
498#	iwic  - Winbond W6692 PCI bus ISDN S/T interface controller
499#	ifpi  - AVM Fritz!Card PCI driver
500#	ifpi2  - AVM Fritz!Card PCI version 2 driver
501#	ihfc  - Cologne Chip HFC ISA/ISA-PnP chipset driver
502#	ifpnp - AVM Fritz!Card PnP driver
503#	itjc  - Siemens ISAC / TJNet Tiger300/320 chipset
504#
505# i4b active ISDN cards support contains the following hardware drivers:
506#
507#	iavc  - AVM B1 PCI, AVM B1 ISA, AVM T1
508#
509# Note that the ``options'' (if given) and ``device'' lines must BOTH
510# be uncommented to enable support for a given card !
511#
512# In addition to a hardware driver (and probably an option) the mandatory
513# ISDN protocol stack devices and the mandatory support device must be
514# enabled as well as one or more devices from the optional devices section.
515#
516#---------------------------------------------------------------------------
517#	isic driver (Siemens/Infineon chipsets)
518#
519device	isic
520#
521# PCI bus Cards:
522# --------------
523#
524# ELSA MicroLink ISDN/PCI (same as ELSA QuickStep 1000pro PCI)
525options 	ELSA_QS1PCI
526#
527#---------------------------------------------------------------------------
528#	ifpnp driver for AVM Fritz!Card PnP
529#
530# AVM Fritz!Card PnP
531device		ifpnp
532#
533#---------------------------------------------------------------------------
534#	ihfc driver for Cologne Chip ISA chipsets (experimental!)
535#
536# Teles 16.3c ISA PnP
537# AcerISDN P10 ISA PnP
538# TELEINT ISDN SPEED No.1
539device		ihfc
540#
541#---------------------------------------------------------------------------
542#	ifpi driver for AVM Fritz!Card PCI
543#
544# AVM Fritz!Card PCI
545device		ifpi
546#
547#---------------------------------------------------------------------------
548#	ifpi2 driver for AVM Fritz!Card PCI version 2
549#
550# AVM Fritz!Card PCI version 2
551device		ifpi2
552#
553#---------------------------------------------------------------------------
554#	iwic driver for Winbond W6692 chipset
555#
556# ASUSCOM P-IN100-ST-D (and other Winbond W6692 based cards)
557device		iwic
558#
559#---------------------------------------------------------------------------
560#	itjc driver for Siemens ISAC / TJNet Tiger300/320 chipset
561#
562# Traverse Technologies NETjet-S
563# Teles PCI-TJ
564device		itjc
565#
566#---------------------------------------------------------------------------
567#	iavc driver (AVM active cards, needs i4bcapi driver!)
568#
569device		iavc
570#
571#---------------------------------------------------------------------------
572#	ISDN Protocol Stack - mandatory for all hardware drivers
573#
574# Q.921 / layer 2 - i4b passive cards D channel handling
575device		i4bq921
576#
577# Q.931 / layer 3 - i4b passive cards D channel handling
578device		i4bq931
579#
580# layer 4 - i4b common passive and active card handling
581device		i4b
582#
583#---------------------------------------------------------------------------
584#	ISDN devices - mandatory for all hardware drivers
585#
586# userland driver to do ISDN tracing (for passive cards only)
587device		i4btrc
588options 	NI4BTRC=4
589#
590# userland driver to control the whole thing
591device		i4bctl
592#
593#---------------------------------------------------------------------------
594#	ISDN devices - optional
595#
596# userland driver for access to raw B channel
597device		i4brbch
598options 	NI4BRBCH=4
599#
600# userland driver for telephony
601device		i4btel
602options 	NI4BTEL=2
603#
604# network driver for IP over raw HDLC ISDN
605device		i4bipr
606options 	NI4BIPR=4
607# enable VJ header compression detection for ipr i/f
608options 	IPR_VJ
609# enable logging of the first n IP packets to isdnd (n=32 here)
610options 	IPR_LOG=32
611#
612# network driver for sync PPP over ISDN; requires an equivalent
613# number of sppp device to be configured
614device		i4bisppp
615options 	NI4BISPPP=4
616#
617# B-channel interface to the netgraph subsystem
618device		i4bing
619options 	NI4BING=2
620#
621# CAPI driver needed for active ISDN cards (see iavc driver above)
622device		i4bcapi
623#
624#---------------------------------------------------------------------------
625
626#
627# Set the number of PV entries per process.  Increasing this can
628# stop panics related to heavy use of shared memory.  However, that can
629# (combined with large amounts of physical memory) cause panics at
630# boot time due the kernel running out of VM space.
631#
632# If you're tweaking this, you might also want to increase the sysctls
633# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target".
634#
635# The value below is the one more than the default.
636#
637options 	PMAP_SHPGPERPROC=201
638
639#
640# Change the size of the kernel virtual address space.  Due to
641# constraints in loader(8) on i386, this must be a multiple of 4.
642# 256 = 1 GB of kernel address space.  Increasing this also causes
643# a reduction of the address space in user processes.  512 splits
644# the 4GB cpu address space in half (2GB user, 2GB kernel).
645#
646options 	KVA_PAGES=260
647
648
649#####################################################################
650# ABI Emulation
651
652# Enable iBCS2 runtime support for SCO and ISC binaries
653options 	IBCS2
654
655# Emulate spx device for client side of SVR3 local X interface
656options 	SPX_HACK
657
658# Enable Linux ABI emulation
659options 	COMPAT_LINUX
660
661# Enable i386 a.out binary support
662options 	COMPAT_AOUT
663
664# Enable the linux-like proc filesystem support (requires COMPAT_LINUX
665# and PSEUDOFS)
666options 	LINPROCFS
667
668#
669# SysVR4 ABI emulation
670#
671# The svr4 ABI emulator can be statically compiled into the kernel or loaded as
672# a KLD module.
673# The STREAMS network emulation code can also be compiled statically or as a
674# module.  If loaded as a module, it must be loaded before the svr4 module
675# (the /usr/sbin/svr4 script does this for you).  If compiling statically,
676# the `streams' device must be configured into any kernel which also
677# specifies COMPAT_SVR4.  It is possible to have a statically-configured
678# STREAMS device and a dynamically loadable svr4 emulator;  the /usr/sbin/svr4
679# script understands that it doesn't need to load the `streams' module under
680# those circumstances.
681# Caveat:  At this time, `options KTRACE' is required for the svr4 emulator
682# (whether static or dynamic).
683#
684options 	COMPAT_SVR4	# build emulator statically
685options 	DEBUG_SVR4	# enable verbose debugging
686device		streams		# STREAMS network driver (required for svr4).
687
688
689#####################################################################
690# VM OPTIONS
691
692# Disable the 4 MByte page PSE CPU feature.  The PSE feature allows the
693# kernel to use 4 MByte pages to map the kernel instead of 4k pages.
694# This saves on the amount of memory needed for page tables needed to
695# map the kernel.  You should only disable this feature as a temporary
696# workaround if you are having problems with it enabled.
697#
698#options 	DISABLE_PSE
699
700# Disable the global pages PGE CPU feature.  The PGE feature allows pages
701# to be marked with the PG_G bit.  TLB entries for these pages are not
702# flushed from the cache when %cr3 is reloaded.  This can make context
703# switches less expensive.  You should only disable this feature as a
704# temporary workaround if you are having problems with it enabled.
705#
706#options 	DISABLE_PG_G
707
708# KSTACK_PAGES is the number of memory pages to assign to the kernel
709# stack of each thread.
710
711options 	KSTACK_PAGES=3
712
713#####################################################################
714
715# More undocumented options for linting.
716# Note that documenting these are not considered an affront.
717
718options 	FB_INSTALL_CDEV		# install a CDEV entry in /dev
719
720# PECOFF module (Win32 Execution Format)
721options 	PECOFF_SUPPORT
722options 	PECOFF_DEBUG
723
724options 	I4B_SMP_WORKAROUND
725options 	I586_PMC_GUPROF=0x70000
726options 	KBDIO_DEBUG=2
727options 	KBD_MAXRETRY=4
728options 	KBD_MAXWAIT=6
729options 	KBD_RESETDELAY=201
730
731options 	TIMER_FREQ=((14318182+6)/12)
732
733options 	VM_KMEM_SIZE
734options 	VM_KMEM_SIZE_MAX
735options 	VM_KMEM_SIZE_SCALE
736
737
738# The I/O device
739device		io
740
741
742#####################################################################
743# Devices we don't want to deal with
744
745nodevice	atkbdc
746nodevice	atkbd
747nodevice	psm
748nodevice	vga
749nodevice	bt
750nodevice	adw
751nodevice	aha
752nodevice	ahb
753nodevice	ahd
754nodevice	mpt
755nodevice	trm
756nodevice	wds
757nodevice	asr
758nodevice	dpt
759nodevice	ciss
760nodevice	iir
761nodevice	mly
762nodevice	ida		# Compaq Smart RAID
763nodevice	mlx		# Mylex DAC960
764nodevice	amr		# AMI MegaRAID
765nodevice	twe		# 3ware ATA RAID
766nodevice	ataraid
767nodevice	cm
768nodevice	cs
769nodevice	ex
770nodevice	fea
771nodevice	cbb
772nodevice	pccard
773nodevice	cardbus
774nodevice	intpm
775nodevice	alpm
776nodevice	ichsmb
777nodevice	viapm
778nodevice	amdpm
779nodevice	nfpm
780
781
782#####################################################################
783# Options we don't want to deal with
784
785nooption	VGA_DEBUG
786nooption	VGA_WIDTH90
787nooption	VGA_SLOW_IOACCESS
788nooption	VGA_ALT_SEQACCESS
789nooption	PSM_RESETAFTERSUSPEND
790nooption	PSM_HOOKRESUME
791nooption	ATKBD_DFLT_KEYMAP
792nooption	AHD_DEBUG
793nooption	AHD_DEBUG_OPTS
794nooption	AHD_REG_PRETTY_PRINT
795nooption	ADW_ALLOW_MEMIO
796nooption	DPT_LOST_IRQ
797nooption	DPT_RESET_HBA
798nooption	DPT_TIMEOUT_FACTOR
799nooption	AAC_DEBUG
800nooption	ACPI_MAX_THREADS
801
802
803#####################################################################
804# Make options we don't want to deal with
805
806nomakeoption	ATKBD_DFLT_KEYMAP
807