NOTES revision 158357
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 158357 2006-05-08 11:55:57Z nyan $
8#
9
10options 	PC98
11
12#
13# We want LINT to cover profiling as well.
14profile         2
15
16
17#####################################################################
18# SMP OPTIONS:
19#
20# The apic device enables the use of the I/O APIC for interrupt delivery.
21# The apic device can be used in both UP and SMP kernels, but is required
22# for SMP kernels.  Thus, the apic device is not strictly an SMP option,
23# but it is a prerequisite for SMP.
24#
25
26# Mandatory:
27device		apic			# I/O apic
28
29#
30# Watchdog routines.
31#
32options 	MP_WATCHDOG
33
34# Debugging options.
35#
36options		STOP_NMI		# Stop CPUS using NMI instead of IPI
37
38
39
40#####################################################################
41# CPU OPTIONS
42
43#
44# You must specify at least one CPU (the one you intend to run on);
45# deleting the specification for CPUs you don't need to use may make
46# parts of the system run faster.
47#
48cpu		I486_CPU
49cpu		I586_CPU		# aka Pentium(tm)
50cpu		I686_CPU		# aka Pentium Pro(tm)
51
52#
53# Options for CPU features.
54#
55# CPU_BLUELIGHTNING_3X enables triple-clock mode on IBM Blue Lightning
56# CPU if CPU supports it.  The default is double-clock mode on
57# BlueLightning CPU box.
58#
59# CPU_BLUELIGHTNING_FPU_OP_CACHE enables FPU operand cache on IBM
60# BlueLightning CPU.  It works only with Cyrix FPU, and this option
61# should not be used with Intel FPU.
62#
63# CPU_BTB_EN enables branch target buffer on Cyrix 5x86 (NOTE 1).
64#
65# CPU_CYRIX_NO_LOCK enables weak locking for the entire address space
66# of Cyrix 6x86 and 6x86MX CPUs by setting the NO_LOCK bit of CCR1.
67# Otherwise, the NO_LOCK bit of CCR1 is cleared.  (NOTE 3)
68#
69# CPU_DIRECT_MAPPED_CACHE sets L1 cache of Cyrix 486DLC CPU in direct
70# mapped mode.  Default is 2-way set associative mode.
71#
72# CPU_DISABLE_5X86_LSSER disables load store serialize (i.e., enables
73# reorder).  This option should not be used if you use memory mapped
74# I/O device(s).
75#
76# CPU_DISABLE_CMPXCHG disables the CMPXCHG instruction on > i386 IA32
77# machines.  VmWare 3.x seems to emulate this instruction poorly, causing
78# the guest OS to run very slowly.  This problem appears to be fixed in
79# VmWare 4.x, at least in version 4.5.2, so that enabling this option with
80# VmWare 4.x will result in locking operations to be 20-30 times slower.
81# Enabling this with an SMP kernel will cause the kernel to be unusable.
82#
83# CPU_DISABLE_SSE explicitly prevents I686_CPU from turning on SSE.
84#
85# CPU_FASTER_5X86_FPU enables faster FPU exception handler.
86#
87# CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products
88# for i386 machines.
89#
90# CPU_IORT defines I/O clock delay time (NOTE 1).  Default values of
91# I/O clock delay time on Cyrix 5x86 and 6x86 are 0 and 7,respectively
92# (no clock delay).
93#
94# CPU_L2_LATENCY specifies the L2 cache latency value.  This option is used
95# only when CPU_PPRO2CELERON is defined and Mendocino Celeron is detected.
96# The default value is 5.
97#
98# CPU_LOOP_EN prevents flushing the prefetch buffer if the destination
99# of a jump is already present in the prefetch buffer on Cyrix 5x86(NOTE
100# 1).
101#
102# CPU_PPRO2CELERON enables L2 cache of Mendocino Celeron CPUs.  This option
103# is useful when you use Socket 8 to Socket 370 converter, because most Pentium
104# Pro BIOSs do not enable L2 cache of Mendocino Celeron CPUs.
105#
106# CPU_RSTK_EN enables return stack on Cyrix 5x86 (NOTE 1).
107#
108# CPU_SUSP_HLT enables suspend on HALT.  If this option is set, CPU
109# enters suspend mode following execution of HALT instruction.
110#
111# CPU_UPGRADE_HW_CACHE eliminates unneeded cache flush instruction(s).
112#
113# CPU_WT_ALLOC enables write allocation on Cyrix 6x86/6x86MX and AMD
114# K5/K6/K6-2 CPUs.
115#
116# CYRIX_CACHE_WORKS enables CPU cache on Cyrix 486 CPUs with cache
117# flush at hold state.
118#
119# CYRIX_CACHE_REALLY_WORKS enables (1) CPU cache on Cyrix 486 CPUs
120# without cache flush at hold state, and (2) write-back CPU cache on
121# Cyrix 6x86 whose revision < 2.7 (NOTE 2).
122#
123# NO_F00F_HACK disables the hack that prevents Pentiums (and ONLY
124# Pentiums) from locking up when a LOCK CMPXCHG8B instruction is
125# executed.  This option is only needed if I586_CPU is also defined,
126# and should be included for any non-Pentium CPU that defines it.
127#
128# NO_MEMORY_HOLE is an optimisation for systems with AMD K6 processors
129# which indicates that the 15-16MB range is *definitely* not being
130# occupied by an ISA memory hole.
131#
132# NOTE 1: The options, CPU_BTB_EN, CPU_LOOP_EN, CPU_IORT,
133# CPU_LOOP_EN and CPU_RSTK_EN should not be used because of CPU bugs.
134# These options may crash your system.
135#
136# NOTE 2: If CYRIX_CACHE_REALLY_WORKS is not set, CPU cache is enabled
137# in write-through mode when revision < 2.7.  If revision of Cyrix
138# 6x86 >= 2.7, CPU cache is always enabled in write-back mode.
139#
140# NOTE 3: This option may cause failures for software that requires
141# locked cycles in order to operate correctly.
142#
143options 	CPU_BLUELIGHTNING_3X
144options 	CPU_BLUELIGHTNING_FPU_OP_CACHE
145options 	CPU_BTB_EN
146options 	CPU_DIRECT_MAPPED_CACHE
147options 	CPU_DISABLE_5X86_LSSER
148options 	CPU_DISABLE_CMPXCHG
149#options 	CPU_DISABLE_SSE
150options 	CPU_FASTER_5X86_FPU
151options 	CPU_I486_ON_386
152options 	CPU_IORT
153options 	CPU_L2_LATENCY=5
154options 	CPU_LOOP_EN
155options 	CPU_PPRO2CELERON
156options 	CPU_RSTK_EN
157options 	CPU_SUSP_HLT
158options 	CPU_UPGRADE_HW_CACHE
159options 	CPU_WT_ALLOC
160options 	CYRIX_CACHE_WORKS
161options 	CYRIX_CACHE_REALLY_WORKS
162#options 	NO_F00F_HACK
163
164# Debug options
165options 	NPX_DEBUG	# enable npx debugging
166
167#
168# PERFMON causes the driver for Pentium/Pentium Pro performance counters
169# to be compiled.  See perfmon(4) for more information.
170#
171options 	PERFMON
172
173
174#####################################################################
175# NETWORKING OPTIONS
176
177#
178# DEVICE_POLLING adds support for mixed interrupt-polling handling
179# of network device drivers, which has significant benefits in terms
180# of robustness to overloads and responsivity, as well as permitting
181# accurate scheduling of the CPU time between kernel network processing
182# and other activities.  The drawback is a moderate (up to 1/HZ seconds)
183# potential increase in response times.
184# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
185# to achieve smoother behaviour.
186# Additionally, you can enable/disable polling at runtime with help of
187# the ifconfig(8) utility, and select the CPU fraction reserved to
188# userland with the sysctl variable kern.polling.user_frac
189# (default 50, range 0..100).
190#
191# Not all device drivers support this mode of operation at the time of
192# this writing.  See polling(4) for more details.
193
194options 	DEVICE_POLLING
195
196
197#####################################################################
198# CLOCK OPTIONS
199
200# The following options are used for debugging clock behavior only, and
201# should not be used for production systems.
202
203# CLK_CALIBRATION_LOOP causes clock calibration to be run in a loop at
204# startup until the user presses a key.  (The i8254 clock is always
205# calibrated relative to the RTC (mc146818a) and this option causes the
206# calibration to be repeated.)
207options 	CLK_CALIBRATION_LOOP
208
209# CLK_USE_I8254_CALIBRATION causes the calibrated frequency of the i8254
210# clock to actually be used.
211options 	CLK_USE_I8254_CALIBRATION
212
213
214#####################################################################
215# MISCELLANEOUS DEVICES AND OPTIONS
216
217device		speaker		#Play IBM BASIC-style noises out your speaker
218hint.speaker.0.at="isa"
219hint.speaker.0.port="0x35"
220device		gzip		#Exec gzipped a.out's.  REQUIRES COMPAT_AOUT!
221device		apm_saver	# Requires APM
222
223
224#####################################################################
225# HARDWARE BUS CONFIGURATION
226
227#
228# ISA bus
229#
230device		isa
231
232#
233# Options for `isa':
234#
235# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
236# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
237# This option breaks suspend/resume on some portables.
238#
239# MAXMEM specifies the amount of RAM on the machine; if this is not
240# specified, FreeBSD will first read the amount of memory from the CMOS
241# RAM, so the amount of memory will initially be limited to 64MB or 16MB
242# depending on the BIOS.  If the BIOS reports 64MB, a memory probe will
243# then attempt to detect the installed amount of RAM.  If this probe
244# fails to detect >64MB RAM you will have to use the MAXMEM option.
245# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
246# be 131072 (128 * 1024).
247#
248# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
249# reset the CPU for reboot.  This is needed on some systems with broken
250# keyboard controllers.
251
252options 	AUTO_EOI_1
253
254options 	MAXMEM=(128*1024)
255#options 	BROKEN_KEYBOARD_RESET
256options 	EPSON_BOUNCEDMA
257options 	EPSON_MEMWIN
258
259#
260# PCI bus & PCI options:
261#
262device		pci
263
264#
265# AGP GART support
266device		agp
267
268
269#####################################################################
270# HARDWARE DEVICE CONFIGURATION
271
272# PC98 keyboard
273device		pckbd
274hint.pckbd.0.at="isa"
275hint.pckbd.0.port="0x041"
276hint.pckbd.0.irq="1"
277
278# These options are valid for other keyboard drivers as well.
279options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
280options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
281
282# GDC screen
283device		gdc
284hint.gdc.0.at="isa"
285options 	LINE30
286
287#
288# The Numeric Processing eXtension driver.  This is non-optional.
289device		npx
290
291#
292# `flags' for npx0:
293#	0x01	don't use the npx registers to optimize bcopy.
294#	0x02	don't use the npx registers to optimize bzero.
295#	0x04	don't use the npx registers to optimize copyin or copyout.
296# The npx registers are normally used to optimize copying and zeroing when
297# all of the following conditions are satisfied:
298#	I586_CPU is an option
299#	the cpu is an i586 (perhaps not a Pentium)
300#	the probe for npx0 succeeds
301#	INT 16 exception handling works.
302# Then copying and zeroing using the npx registers is normally 30-100% faster.
303# The flags can be used to control cases where it doesn't work or is slower.
304# Setting them at boot time using hints works right (the optimizations
305# are not used until later in the bootstrap when npx0 is attached).
306# Flag 0x08 automatically disables the i586 optimized routines.
307#
308
309#
310# Optional devices:
311#
312
313# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support.  This will create
314# the /dev/3dfx0 device to work with glide implementations.  This should get
315# linked to /dev/3dfx and /dev/voodoo.  Note that this is not the same as
316# the tdfx DRI module from XFree86 and is completely unrelated.
317#
318# To enable Linuxulator support, one must also include COMPAT_LINUX in the
319# config as well.  The other option is to load both as modules.
320
321device		tdfx			# Enable 3Dfx Voodoo support
322device		tdfx_linux		# Enable Linuxulator support
323
324# Direct Rendering modules for 3D acceleration.
325device		drm		# DRM core module required by DRM drivers
326device		mach64drm	# ATI Rage Pro, Rage Mobility P/M, Rage XL
327device		mgadrm		# AGP Matrox G200, G400, G450, G550
328device		r128drm		# ATI Rage 128
329device		radeondrm	# ATI Radeon
330device		savagedrm	# S3 Savage3D, Savage4
331device		sisdrm		# SiS 300/305, 540, 630
332device		tdfxdrm		# 3dfx Voodoo 3/4/5 and Banshee
333options 	DRM_DEBUG	# Include debug printfs (slow)
334
335#
336# Bus mouse
337#
338device		mse
339hint.mse.0.at="isa"
340hint.mse.0.port="0x7fd9"
341hint.mse.0.irq="13"
342
343#
344# Network interfaces:
345#
346
347# ar:   Arnet SYNC/570i hdlc sync 2/4 port V.35/X.21 serial driver
348#       (requires sppp)
349# ath:  Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
350# ce:   Cronyx Tau-PCI/32 sync single/dual port G.703/E1 serial adaptor
351#       with 32 HDLC subchannels (requires sppp (default), or NETGRAPH if
352#       NETGRAPH_CRONYX is configured)
353# cp:   Cronyx Tau-PCI sync single/dual/four port
354#       V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1
355#       serial adaptor (requires sppp (default), or NETGRAPH if
356#       NETGRAPH_CRONYX is configured)
357# cs:   IBM Etherjet and other Crystal Semi CS89x0-based adapters and pccard
358# ed:   Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
359#       HP PC Lan+, various PC Card devices
360#       (requires miibus)
361# ie:   AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210;
362#       Intel EtherExpress
363# lnc:  Lance/PCnet cards (Isolan, Novell NE2100, NE32-VL, AMD Am7990 and
364#       Am79C960)
365# oltr: Olicom ISA token-ring adapters OC-3115, OC-3117, OC-3118 and OC-3133.
366#       Olicom PCI token-ring adapters OC-3136, OC-3137, OC-3139, OC-3140,
367#       OC-3141, OC-3540 and OC-3250.
368# sbni: Granch SBNI12-xx ISA and PCI adapters
369# sr:   RISCom/N2 hdlc sync 1/2 port V.35/X.21 serial driver (requires sppp)
370
371# Order for ISA/EISA devices is important here
372
373device		ar
374device		ce
375device		cp
376device		cs
377device		ed
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
405device		ath
406device		ath_hal		# Atheros HAL (includes binary component)
407#device		ath_rate_amrr	# AMRR rate control for ath driver
408#device		ath_rate_onoe	# Onoe rate control for ath driver
409device		ath_rate_sample	# SampleRate rate control for the ath driver
410#device		wlan		# 802.11 layer
411
412#
413# SCSI host adapters:
414#
415# ct: WD33C93[ABC] based SCSI host adapters.
416# ncv: NCR 53C500 based SCSI host adapters.
417# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters.
418# stg: TMC 18C30, 18C50 based SCSI host adapters.
419
420device		ct
421hint.ct.0.at="isa"
422device		ncv
423device		nsp
424device		stg
425
426#
427# SafeNet crypto driver: can be moved to the MI NOTES as soon as
428# it's tested on a big-endian machine
429#
430device		safe		# SafeNet 1141
431options 	SAFE_DEBUG	# enable debugging support: hw.safe.debug
432options 	SAFE_RNDTEST	# enable rndtest support
433
434#####################################################################
435
436#
437# Miscellaneous hardware:
438#
439# apm: Laptop Advanced Power Management (experimental)
440# pmtimer: Timer device driver for power management events (APM or ACPI)
441# cy: Cyclades serial driver
442# digi: Digiboard driver
443
444# Notes on APM
445#  The flags takes the following meaning for apm0:
446#    0x0020  Statclock is broken.
447
448device		apm
449hint.apm.0.flags="0x20"
450device		canbus
451device		canbepm
452device		cy
453options 	CY_PCI_FASTINTR		# Use with cy_pci unless irq is shared
454device		digi
455# BIOS & FEP/OS components of device digi.
456device		digi_CX
457device		digi_CX_PCI
458device		digi_EPCX
459device		digi_EPCX_PCI
460device		digi_Xe
461device		digi_Xem
462device		digi_Xr
463device		olpt
464hint.olpt.0.at="isa"
465hint.olpt.0.port="0x040"
466device		pmc
467hint.pmc.0.at="isa"
468hint.pmc.0.port="0x8f0"
469device		pmtimer			# Adjust system timer at wakeup time
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# ISDN4BSD
485#
486# See /usr/share/examples/isdn/ROADMAP for an introduction to isdn4bsd.
487#
488# i4b passive ISDN cards support contains the following hardware drivers:
489#
490#	isic  - Siemens/Infineon ISDN ISAC/HSCX/IPAC chipset driver
491#	iwic  - Winbond W6692 PCI bus ISDN S/T interface controller
492#	ifpi  - AVM Fritz!Card PCI driver
493#	ifpi2  - AVM Fritz!Card PCI version 2 driver
494#	ihfc  - Cologne Chip HFC ISA/ISA-PnP chipset driver
495#	ifpnp - AVM Fritz!Card PnP driver
496#	itjc  - Siemens ISAC / TJNet Tiger300/320 chipset
497#
498# i4b active ISDN cards support contains the following hardware drivers:
499#
500#	iavc  - AVM B1 PCI, AVM B1 ISA, AVM T1
501#
502# Note that the ``options'' (if given) and ``device'' lines must BOTH
503# be uncommented to enable support for a given card !
504#
505# In addition to a hardware driver (and probably an option) the mandatory
506# ISDN protocol stack devices and the mandatory support device must be
507# enabled as well as one or more devices from the optional devices section.
508#
509#---------------------------------------------------------------------------
510#	isic driver (Siemens/Infineon chipsets)
511#
512device	isic
513#
514# PCI bus Cards:
515# --------------
516#
517# ELSA MicroLink ISDN/PCI (same as ELSA QuickStep 1000pro PCI)
518options 	ELSA_QS1PCI
519#
520#---------------------------------------------------------------------------
521#	ifpnp driver for AVM Fritz!Card PnP
522#
523# AVM Fritz!Card PnP
524device		ifpnp
525#
526#---------------------------------------------------------------------------
527#	ihfc driver for Cologne Chip ISA chipsets (experimental!)
528#
529# Teles 16.3c ISA PnP
530# AcerISDN P10 ISA PnP
531# TELEINT ISDN SPEED No.1
532device		ihfc
533#
534#---------------------------------------------------------------------------
535#	ifpi driver for AVM Fritz!Card PCI
536#
537# AVM Fritz!Card PCI
538device		ifpi
539#
540#---------------------------------------------------------------------------
541#	ifpi2 driver for AVM Fritz!Card PCI version 2
542#
543# AVM Fritz!Card PCI version 2
544device		ifpi2
545#
546#---------------------------------------------------------------------------
547#	iwic driver for Winbond W6692 chipset
548#
549# ASUSCOM P-IN100-ST-D (and other Winbond W6692 based cards)
550device		iwic
551#
552#---------------------------------------------------------------------------
553#	itjc driver for Siemens ISAC / TJNet Tiger300/320 chipset
554#
555# Traverse Technologies NETjet-S
556# Teles PCI-TJ
557device		itjc
558#
559#---------------------------------------------------------------------------
560#	iavc driver (AVM active cards, needs i4bcapi driver!)
561#
562device		iavc
563#
564#---------------------------------------------------------------------------
565#	ISDN Protocol Stack - mandatory for all hardware drivers
566#
567# Q.921 / layer 2 - i4b passive cards D channel handling
568device		i4bq921
569#
570# Q.931 / layer 3 - i4b passive cards D channel handling
571device		i4bq931
572#
573# layer 4 - i4b common passive and active card handling
574device		i4b
575#
576#---------------------------------------------------------------------------
577#	ISDN devices - mandatory for all hardware drivers
578#
579# userland driver to do ISDN tracing (for passive cards only)
580device		i4btrc
581options 	NI4BTRC=4
582#
583# userland driver to control the whole thing
584device		i4bctl
585#
586#---------------------------------------------------------------------------
587#	ISDN devices - optional
588#
589# userland driver for access to raw B channel
590device		i4brbch
591options 	NI4BRBCH=4
592#
593# userland driver for telephony
594device		i4btel
595options 	NI4BTEL=2
596#
597# network driver for IP over raw HDLC ISDN
598device		i4bipr
599options 	NI4BIPR=4
600# enable VJ header compression detection for ipr i/f
601options 	IPR_VJ
602# enable logging of the first n IP packets to isdnd (n=32 here)
603options 	IPR_LOG=32
604#
605# network driver for sync PPP over ISDN; requires an equivalent
606# number of sppp device to be configured
607device		i4bisppp
608options 	NI4BISPPP=4
609#
610# B-channel interface to the netgraph subsystem
611device		i4bing
612options 	NI4BING=2
613#
614# CAPI driver needed for active ISDN cards (see iavc driver above)
615device		i4bcapi
616#
617#---------------------------------------------------------------------------
618
619#
620# Set the number of PV entries per process.  Increasing this can
621# stop panics related to heavy use of shared memory.  However, that can
622# (combined with large amounts of physical memory) cause panics at
623# boot time due the kernel running out of VM space.
624#
625# If you're tweaking this, you might also want to increase the sysctls
626# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target".
627#
628# The value below is the one more than the default.
629#
630options 	PMAP_SHPGPERPROC=201
631
632#
633# Change the size of the kernel virtual address space.  Due to
634# constraints in loader(8) on i386, this must be a multiple of 4.
635# 256 = 1 GB of kernel address space.  Increasing this also causes
636# a reduction of the address space in user processes.  512 splits
637# the 4GB cpu address space in half (2GB user, 2GB kernel).
638#
639options 	KVA_PAGES=260
640
641
642#####################################################################
643# ABI Emulation
644
645# Enable iBCS2 runtime support for SCO and ISC binaries
646options 	IBCS2
647
648# Emulate spx device for client side of SVR3 local X interface
649options 	SPX_HACK
650
651# Enable Linux ABI emulation
652options 	COMPAT_LINUX
653
654# Enable i386 a.out binary support
655options 	COMPAT_AOUT
656
657# Enable the linux-like proc filesystem support (requires COMPAT_LINUX
658# and PSEUDOFS)
659options 	LINPROCFS
660
661#
662# SysVR4 ABI emulation
663#
664# The svr4 ABI emulator can be statically compiled into the kernel or loaded as
665# a KLD module.
666# The STREAMS network emulation code can also be compiled statically or as a
667# module.  If loaded as a module, it must be loaded before the svr4 module
668# (the /usr/sbin/svr4 script does this for you).  If compiling statically,
669# the `streams' device must be configured into any kernel which also
670# specifies COMPAT_SVR4.  It is possible to have a statically-configured
671# STREAMS device and a dynamically loadable svr4 emulator;  the /usr/sbin/svr4
672# script understands that it doesn't need to load the `streams' module under
673# those circumstances.
674# Caveat:  At this time, `options KTRACE' is required for the svr4 emulator
675# (whether static or dynamic).
676#
677options 	COMPAT_SVR4	# build emulator statically
678options 	DEBUG_SVR4	# enable verbose debugging
679device		streams		# STREAMS network driver (required for svr4).
680
681
682#####################################################################
683# VM OPTIONS
684
685# Disable the 4 MByte page PSE CPU feature.  The PSE feature allows the
686# kernel to use 4 MByte pages to map the kernel instead of 4k pages.
687# This saves on the amount of memory needed for page tables needed to
688# map the kernel.  You should only disable this feature as a temporary
689# workaround if you are having problems with it enabled.
690#
691#options 	DISABLE_PSE
692
693# Disable the global pages PGE CPU feature.  The PGE feature allows pages
694# to be marked with the PG_G bit.  TLB entries for these pages are not
695# flushed from the cache when %cr3 is reloaded.  This can make context
696# switches less expensive.  You should only disable this feature as a
697# temporary workaround if you are having problems with it enabled.
698#
699#options 	DISABLE_PG_G
700
701# KSTACK_PAGES is the number of memory pages to assign to the kernel
702# stack of each thread.
703
704options 	KSTACK_PAGES=3
705
706#####################################################################
707
708# More undocumented options for linting.
709# Note that documenting these are not considered an affront.
710
711options 	FB_INSTALL_CDEV		# install a CDEV entry in /dev
712
713# PECOFF module (Win32 Execution Format)
714options 	PECOFF_SUPPORT
715options 	PECOFF_DEBUG
716
717options 	I4B_SMP_WORKAROUND
718options 	I586_PMC_GUPROF=0x70000
719options 	KBDIO_DEBUG=2
720options 	KBD_MAXRETRY=4
721options 	KBD_MAXWAIT=6
722options 	KBD_RESETDELAY=201
723
724options 	TIMER_FREQ=((14318182+6)/12)
725
726options 	VM_KMEM_SIZE
727options 	VM_KMEM_SIZE_MAX
728options 	VM_KMEM_SIZE_SCALE
729
730
731# The I/O device
732device		io
733
734
735#####################################################################
736# Devices we don't want to deal with
737
738nodevice	atkbdc
739nodevice	atkbd
740nodevice	psm
741nodevice	vga
742nodevice	bt
743nodevice	adw
744nodevice	aha
745nodevice	ahb
746nodevice	ahd
747nodevice	mpt
748nodevice	trm
749nodevice	wds
750nodevice	dpt
751nodevice	ciss
752nodevice	iir
753nodevice	mly
754nodevice	ida		# Compaq Smart RAID
755nodevice	mlx		# Mylex DAC960
756nodevice	amr		# AMI MegaRAID
757nodevice	twe		# 3ware ATA RAID
758nodevice	ataraid
759nodevice	cm
760nodevice	ex
761nodevice	fea
762nodevice	intpm
763nodevice	alpm
764nodevice	ichsmb
765nodevice	viapm
766nodevice	amdpm
767nodevice	amdsmb
768nodevice	nfpm
769nodevice	nfsmb
770
771
772#####################################################################
773# Options we don't want to deal with
774
775nooption	VGA_DEBUG
776nooption	VGA_WIDTH90
777nooption	VGA_SLOW_IOACCESS
778nooption	VGA_ALT_SEQACCESS
779nooption	PSM_RESETAFTERSUSPEND
780nooption	PSM_HOOKRESUME
781nooption	ATKBD_DFLT_KEYMAP
782nooption	AHD_DEBUG
783nooption	AHD_DEBUG_OPTS
784nooption	AHD_REG_PRETTY_PRINT
785nooption	ADW_ALLOW_MEMIO
786nooption	DPT_LOST_IRQ
787nooption	DPT_RESET_HBA
788nooption	DPT_TIMEOUT_FACTOR
789nooption	AAC_DEBUG
790nooption	ACPI_MAX_THREADS
791
792
793#####################################################################
794# Make options we don't want to deal with
795
796nomakeoption	ATKBD_DFLT_KEYMAP
797