xref: /freebsd/sys/i386/conf/NOTES (revision a783ff949cafa0efc59d68ca19224e62d73616b9)
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# $FreeBSD$
8#
9
10#
11# This directive is mandatory; it defines the architecture to be
12# configured for; in this case, the 386 family based IBM-PC and
13# compatibles.
14#
15machine		i386
16
17#
18# We want LINT to cover profiling as well
19profile         2
20
21
22#####################################################################
23# SMP OPTIONS:
24#
25# The apic device enables the use of the I/O APIC for interrupt delivery.
26# The apic device can be used in both UP and SMP kernels, but is required
27# for SMP kernels.  Thus, the apic device is not strictly an SMP option,
28# but it is a prerequisite for SMP.
29#
30# Notes:
31#
32# Be sure to disable 'cpu I386_CPU' for SMP kernels.
33#
34# By default, mixed mode is used to route IRQ0 from the AT timer via
35# the 8259A master PIC through the ExtINT pin on the first I/O APIC.
36# This can be disabled via the NO_MIXED_MODE option.  In that case,
37# IRQ0 will be routed via an intpin on the first I/O APIC.  Not all
38# motherboards hook IRQ0 up to the first I/O APIC even though their
39# MP table or MADT may claim to do so.  That is why mixed mode is
40# enabled by default.
41#
42# HTT CPUs should only be used if they are enabled in the BIOS.  For
43# the ACPI case, ACPI only correctly tells us about any HTT CPUs if
44# they are enabled.  However, most HTT systems do not list HTT CPUs
45# in the MP Table if they are enabled, thus we guess at the HTT CPUs
46# for the MP Table case.  However, we shouldn't try to guess and use
47# these CPUs if HTTT is disabled.  Thus, HTT guessing is only enabled
48# for the MP Table if the user explicitly asks for it via the
49# MPTABLE_FORCE_HTT option.  Do NOT use this option if you have HTT
50# disabled in your BIOS.
51#
52
53# Mandatory:
54device		apic			# I/O apic
55
56# Optional:
57options		MPTABLE_FORCE_HTT	# Enable HTT CPUs with the MP Table
58options 	NO_MIXED_MODE		# Disable use of mixed mode
59
60
61#####################################################################
62# CPU OPTIONS
63
64#
65# You must specify at least one CPU (the one you intend to run on);
66# deleting the specification for CPUs you don't need to use may make
67# parts of the system run faster.
68# I386_CPU is mutually exclusive with the other CPU types.
69#
70#cpu		I386_CPU
71cpu		I486_CPU
72cpu		I586_CPU		# aka Pentium(tm)
73cpu		I686_CPU		# aka Pentium Pro(tm)
74
75#
76# Options for CPU features.
77#
78# CPU_ATHLON_SSE_HACK tries to enable SSE instructions when the BIOS has
79# forgotten to enable them.
80#
81# CPU_BLUELIGHTNING_FPU_OP_CACHE enables FPU operand cache on IBM
82# BlueLightning CPU.  It works only with Cyrix FPU, and this option
83# should not be used with Intel FPU.
84#
85# CPU_BLUELIGHTNING_3X enables triple-clock mode on IBM Blue Lightning
86# CPU if CPU supports it. The default is double-clock mode on
87# BlueLightning CPU box.
88#
89# CPU_BTB_EN enables branch target buffer on Cyrix 5x86 (NOTE 1).
90#
91# CPU_DIRECT_MAPPED_CACHE sets L1 cache of Cyrix 486DLC CPU in direct
92# mapped mode.  Default is 2-way set associative mode.
93#
94# CPU_CYRIX_NO_LOCK enables weak locking for the entire address space
95# of Cyrix 6x86 and 6x86MX CPUs by setting the NO_LOCK bit of CCR1.
96# Otherwise, the NO_LOCK bit of CCR1 is cleared.  (NOTE 3)
97#
98# CPU_DISABLE_5X86_LSSER disables load store serialize (i.e. enables
99# reorder).  This option should not be used if you use memory mapped
100# I/O device(s).
101#
102# CPU_ELAN enables support for AMDs ElanSC520 CPU.
103#    CPU_ELAN_XTAL sets the clock crystal frequency in Hz
104#    CPU_ELAN_PPS enables precision timestamp code.
105#
106# CPU_SOEKRIS enables support www.soekris.com hardware.
107#
108# CPU_ENABLE_SSE enables SSE/MMX2 instructions support.  This is default
109# on I686_CPU and above.
110# CPU_DISABLE_SSE explicitly prevent I686_CPU from turning on SSE.
111#
112# CPU_FASTER_5X86_FPU enables faster FPU exception handler.
113#
114# CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products
115# for i386 machines.
116#
117# CPU_IORT defines I/O clock delay time (NOTE 1).  Default values of
118# I/O clock delay time on Cyrix 5x86 and 6x86 are 0 and 7,respectively
119# (no clock delay).
120#
121# CPU_L2_LATENCY specifed the L2 cache latency value.  This option is used
122# only when CPU_PPRO2CELERON is defined and Mendocino Celeron is detected.
123# The default value is 5.
124#
125# CPU_LOOP_EN prevents flushing the prefetch buffer if the destination
126# of a jump is already present in the prefetch buffer on Cyrix 5x86(NOTE
127# 1).
128#
129# CPU_PPRO2CELERON enables L2 cache of Mendocino Celeron CPUs.  This option
130# is useful when you use Socket 8 to Socket 370 converter, because most Pentium
131# Pro BIOSs do not enable L2 cache of Mendocino Celeron CPUs.
132#
133# CPU_RSTK_EN enables return stack on Cyrix 5x86 (NOTE 1).
134#
135# CPU_SUSP_HLT enables suspend on HALT.  If this option is set, CPU
136# enters suspend mode following execution of HALT instruction.
137#
138# CPU_UPGRADE_HW_CACHE eliminates unneeded cache flush instruction(s).
139#
140# CPU_WT_ALLOC enables write allocation on Cyrix 6x86/6x86MX and AMD
141# K5/K6/K6-2 cpus.
142#
143# CYRIX_CACHE_WORKS enables CPU cache on Cyrix 486 CPUs with cache
144# flush at hold state.
145#
146# CYRIX_CACHE_REALLY_WORKS enables (1) CPU cache on Cyrix 486 CPUs
147# without cache flush at hold state, and (2) write-back CPU cache on
148# Cyrix 6x86 whose revision < 2.7 (NOTE 2).
149#
150# NO_F00F_HACK disables the hack that prevents Pentiums (and ONLY
151# Pentiums) from locking up when a LOCK CMPXCHG8B instruction is
152# executed.  This option is only needed if I586_CPU is also defined,
153# and should be included for any non-Pentium CPU that defines it.
154#
155# NO_MEMORY_HOLE is an optimisation for systems with AMD K6 processors
156# which indicates that the 15-16MB range is *definitely* not being
157# occupied by an ISA memory hole.
158#
159# CPU_DISABLE_CMPXCHG disables the CMPXCHG instruction on > i386 IA32
160# machines.  VmWare seems to emulate this instruction poorly, causing
161# the guest OS to run very slowly.  Enabling this with a SMP kernel
162# will cause the kernel to be unusable.
163#
164# NOTE 1: The options, CPU_BTB_EN, CPU_LOOP_EN, CPU_IORT,
165# CPU_LOOP_EN and CPU_RSTK_EN should not be used because of CPU bugs.
166# These options may crash your system.
167#
168# NOTE 2: If CYRIX_CACHE_REALLY_WORKS is not set, CPU cache is enabled
169# in write-through mode when revision < 2.7.  If revision of Cyrix
170# 6x86 >= 2.7, CPU cache is always enabled in write-back mode.
171#
172# NOTE 3: This option may cause failures for software that requires
173# locked cycles in order to operate correctly.
174#
175options 	CPU_ATHLON_SSE_HACK
176options 	CPU_BLUELIGHTNING_FPU_OP_CACHE
177options 	CPU_BLUELIGHTNING_3X
178options 	CPU_BTB_EN
179options 	CPU_DIRECT_MAPPED_CACHE
180options 	CPU_DISABLE_5X86_LSSER
181options 	CPU_ELAN
182options 	CPU_SOEKRIS
183options 	CPU_ELAN_XTAL=32768000
184options 	CPU_ELAN_PPS
185options 	CPU_ENABLE_SSE
186#options 	CPU_DISABLE_SSE
187options 	CPU_FASTER_5X86_FPU
188options 	CPU_I486_ON_386
189options 	CPU_IORT
190options 	CPU_L2_LATENCY=5
191options 	CPU_LOOP_EN
192options 	CPU_PPRO2CELERON
193options 	CPU_RSTK_EN
194options 	CPU_SUSP_HLT
195options 	CPU_UPGRADE_HW_CACHE
196options 	CPU_WT_ALLOC
197options 	CYRIX_CACHE_WORKS
198options 	CYRIX_CACHE_REALLY_WORKS
199#options 	NO_F00F_HACK
200options 	CPU_DISABLE_CMPXCHG
201
202# Debug options
203options 	NPX_DEBUG	# enable npx debugging (FPU/math emu)
204					#new math emulator
205
206#
207# PERFMON causes the driver for Pentium/Pentium Pro performance counters
208# to be compiled.  See perfmon(4) for more information.
209#
210options 	PERFMON
211
212
213#####################################################################
214# NETWORKING OPTIONS
215
216#
217# DEVICE_POLLING adds support for mixed interrupt-polling handling
218# of network device drivers, which has significant benefits in terms
219# of robustness to overloads and responsivity, as well as permitting
220# accurate scheduling of the CPU time between kernel network processing
221# and other activities. The drawback is a moderate (up to 1/HZ seconds)
222# potential increase in response times.
223# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
224# to achieve smoother behaviour.
225# Additionally, you can enable/disable polling at runtime with the
226# sysctl variable kern.polling.enable (defaults off), and select
227# the CPU fraction reserved to userland with the sysctl variable
228# kern.polling.user_frac (default 50, range 0..100).
229#
230# Only the "dc" "fxp" and "sis" devices support this mode of operation at
231# the time of this writing.
232
233options 	DEVICE_POLLING
234
235
236#####################################################################
237# CLOCK OPTIONS
238
239# The following options are used for debugging clock behavior only, and
240# should not be used for production systems.
241
242# CLK_CALIBRATION_LOOP causes clock calibration to be run in a loop at
243# startup until the user presses a key.  (The i8254 clock is always
244# calibrated relative to the RTC (mc146818a) and this option causes the
245# calibration to be repeated.)
246options 	CLK_CALIBRATION_LOOP
247
248# CLK_USE_I8254_CALIBRATION causes the calibrated frequency of the i8254
249# clock to actually be used.
250options 	CLK_USE_I8254_CALIBRATION
251
252
253#####################################################################
254# MISCELLANEOUS DEVICES AND OPTIONS
255
256device		speaker		#Play IBM BASIC-style noises out your speaker
257hint.speaker.0.at="isa"
258hint.speaker.0.port="0x61"
259device		gzip		#Exec gzipped a.out's. REQUIRES COMPAT_AOUT!
260device		apm_saver	# Requires APM
261
262
263#####################################################################
264# HARDWARE BUS CONFIGURATION
265
266#
267# ISA bus
268#
269device		isa
270
271#
272# Options for `isa':
273#
274# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
275# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
276# This option breaks suspend/resume on some portables.
277#
278# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A
279# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
280# Automatic EOI is documented not to work for for the slave with the
281# original i8259A, but it works for some clones and some integrated
282# versions.
283#
284# MAXMEM specifies the amount of RAM on the machine; if this is not
285# specified, FreeBSD will first read the amount of memory from the CMOS
286# RAM, so the amount of memory will initially be limited to 64MB or 16MB
287# depending on the BIOS.  If the BIOS reports 64MB, a memory probe will
288# then attempt to detect the installed amount of RAM.  If this probe
289# fails to detect >64MB RAM you will have to use the MAXMEM option.
290# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
291# be 131072 (128 * 1024).
292#
293# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
294# reset the CPU for reboot.  This is needed on some systems with broken
295# keyboard controllers.
296
297options 	COMPAT_OLDISA	#Use ISA shims and glue for old drivers
298options 	AUTO_EOI_1
299#options 	AUTO_EOI_2
300
301options 	MAXMEM=(128*1024)
302#options 	BROKEN_KEYBOARD_RESET
303
304#
305# EISA bus
306#
307# The EISA bus device is `eisa'.  It provides auto-detection and
308# configuration support for all devices on the EISA bus.
309
310device		eisa
311
312# By default, only 10 EISA slots are probed, since the slot numbers
313# above clash with the configuration address space of the PCI subsystem,
314# and the EISA probe is not very smart about this.  This is sufficient
315# for most machines, but in particular the HP NetServer LC series comes
316# with an onboard AIC7770 dual-channel SCSI controller on EISA slot #11,
317# thus you need to bump this figure to 12 for them.
318options 	EISA_SLOTS=12
319
320#
321# MCA bus:
322#
323# The MCA bus device is `mca'.  It provides auto-detection and
324# configuration support for all devices on the MCA bus.
325# No hints are required for MCA.
326
327device		mca
328
329#
330# PCI bus & PCI options:
331#
332device		pci
333
334#
335# AGP GART support
336device		agp
337
338
339#####################################################################
340# HARDWARE DEVICE CONFIGURATION
341
342#
343# Mandatory devices:
344#
345
346# To include support for VGA VESA video modes
347options 	VESA
348
349# Turn on extra debugging checks and output for VESA support.
350options 	VESA_DEBUG
351
352# The pcvt console driver (vt220 compatible).
353device		vt
354hint.vt.0.at="isa"
355options 	XSERVER			# support for running an X server on vt
356options 	FAT_CURSOR		# start with block cursor
357# This PCVT option is for keyboards such as those used on really old ThinkPads
358options 	PCVT_SCANSET=2
359# Other PCVT options are documented in pcvt(4).
360options 	PCVT_24LINESDEF
361options 	PCVT_CTRL_ALT_DEL
362options 	PCVT_META_ESC
363options 	PCVT_NSCREENS=9
364options 	PCVT_PRETTYSCRNS
365options 	PCVT_SCREENSAVER
366options 	PCVT_USEKBDSEC
367options 	PCVT_VT220KEYB
368options 	PCVT_GREENSAVER
369
370#
371# The Numeric Processing eXtension driver.  In addition to this, you
372# may configure a math emulator (see above).  If your machine has a
373# hardware FPU and the kernel configuration includes the npx device
374# *and* a math emulator compiled into the kernel, the hardware FPU
375# will be used, unless it is found to be broken or unless "flags" to
376# npx0 includes "0x08", which requests preference for the emulator.
377device		npx
378hint.npx.0.flags="0x0"
379hint.npx.0.irq="13"
380
381#
382# `flags' for npx0:
383#	0x01	don't use the npx registers to optimize bcopy.
384#	0x02	don't use the npx registers to optimize bzero.
385#	0x04	don't use the npx registers to optimize copyin or copyout.
386#	0x08	use emulator even if hardware FPU is available.
387# The npx registers are normally used to optimize copying and zeroing when
388# all of the following conditions are satisfied:
389#	I586_CPU is an option
390#	the cpu is an i586 (perhaps not a Pentium)
391#	the probe for npx0 succeeds
392#	INT 16 exception handling works.
393# Then copying and zeroing using the npx registers is normally 30-100% faster.
394# The flags can be used to control cases where it doesn't work or is slower.
395# Setting them at boot time using userconfig works right (the optimizations
396# are not used until later in the bootstrap when npx0 is attached).
397# Flag 0x08 automatically disables the i586 optimized routines.
398#
399
400#
401# Optional devices:
402#
403
404# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support. This will create
405# the /dev/3dfx0 device to work with glide implementations. This should get
406# linked to /dev/3dfx and /dev/voodoo. Note that this is not the same as
407# the tdfx DRI module from XFree86 and is completely unrelated.
408#
409# To enable Linuxulator support, one must also include COMPAT_LINUX in the
410# config as well, or you will not have the dependencies. The other option
411# is to load both as modules.
412
413device 		tdfx			# Enable 3Dfx Voodoo support
414options 	TDFX_LINUX		# Enable Linuxulator support
415
416#
417# ACPI support using the Intel ACPI Component Architecture reference
418# implementation.
419#
420# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer
421# kernel environment variables to select initial debugging levels for the
422# Intel ACPICA code.  (Note that the Intel code must also have USE_DEBUGGER
423# defined when it is built).
424#
425# ACPI_MAX_THREADS sets the number of task threads started.
426#
427# ACPI_NO_SEMAPHORES makes the AcpiOs*Semaphore routines a no-op.
428#
429# ACPICA_PEDANTIC enables strict checking of AML.  Our default is to
430# relax these checks to allow code generated by the Microsoft compiler
431# to still execute.
432#
433# Note that building ACPI into the kernel is deprecated; the module is
434# normally loaded automatically by the loader.
435#
436device		acpi
437options 	ACPI_DEBUG
438options 	ACPI_MAX_THREADS=1
439#!options 	ACPI_NO_SEMAPHORES
440#!options 	ACPICA_PEDANTIC
441
442# DRM options:
443# mgadrm:    AGP Matrox G200, G400, G450, G550
444# r128drm:   ATI Rage 128
445# radeondrm: ATI Radeon up to 9000/9100
446# sisdrm:    SiS 300/305,540,630
447# tdfxdrm:   3dfx Voodoo 3/4/5 and Banshee
448# DRM_DEBUG: include debug printfs, very slow
449#
450# mga requires AGP in the kernel, and it is recommended
451# for AGP r128 and radeon cards.
452
453device		mgadrm
454device		"r128drm"
455device		radeondrm
456device		sisdrm
457device		tdfxdrm
458
459options 	DRM_DEBUG
460
461# M-systems DiskOnchip products see src/sys/contrib/dev/fla/README
462device		fla
463hint.fla.0.at="isa"
464
465#
466# mse: Logitech and ATI InPort bus mouse ports
467
468device		mse
469hint.mse.0.at="isa"
470hint.mse.0.port="0x23c"
471hint.mse.0.irq="5"
472
473#
474# Network interfaces:
475#
476
477# ar:   Arnet SYNC/570i hdlc sync 2/4 port V.35/X.21 serial driver
478#       (requires sppp)
479# ath:	Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
480# cx:   Cronyx/Sigma multiport sync/async (with Cisco or PPP framing)
481# ed:   Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
482#       HP PC Lan+, various PC Card devices (refer to etc/defauls/pccard.conf)
483#       (requires miibus)
484# el:   3Com 3C501 (slow!)
485# ie:   AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210;
486#       Intel EtherExpress
487# le:   Digital Equipment EtherWorks 2 and EtherWorks 3 (DEPCA, DE100,
488#       DE101, DE200, DE201, DE202, DE203, DE204, DE205, DE422)
489# lnc:  Lance/PCnet cards (Isolan, Novell NE2100, NE32-VL, AMD Am7990 and
490#       Am79C960)
491# oltr: Olicom ISA token-ring adapters OC-3115, OC-3117, OC-3118 and OC-3133
492#       (no hints needed).
493#       Olicom PCI token-ring adapters OC-3136, OC-3137, OC-3139, OC-3140,
494#       OC-3141, OC-3540, OC-3250
495# rdp:  RealTek RTL 8002-based pocket ethernet adapters
496# sbni:	Granch SBNI12-xx ISA and PCI adapters
497# sr:   RISCom/N2 hdlc sync 1/2 port V.35/X.21 serial driver (requires sppp)
498# wl:	Lucent Wavelan (ISA card only).
499
500# Order for ISA/EISA devices is important here
501
502device		ar
503hint.ar.0.at="isa"
504hint.ar.0.port="0x300"
505hint.ar.0.irq="10"
506hint.ar.0.maddr="0xd0000"
507device		cx
508hint.cx.0.at="isa"
509hint.cx.0.port="0x240"
510hint.cx.0.irq="15"
511hint.cx.0.drq="7"
512device		ed
513#options 	ED_NO_MIIBUS		# Disable ed miibus support
514hint.ed.0.at="isa"
515hint.ed.0.port="0x280"
516hint.ed.0.irq="5"
517hint.ed.0.maddr="0xd8000"
518device		el	1
519hint.el.0.at="isa"
520hint.el.0.port="0x300"
521hint.el.0.irq="9"
522device		ie			# Hints only required for Starlan
523hint.ie.2.at="isa"
524hint.ie.2.port="0x300"
525hint.ie.2.irq="5"
526hint.ie.2.maddr="0xd0000"
527device		le	1
528hint.le.0.at="isa"
529hint.le.0.port="0x300"
530hint.le.0.irq="5"
531hint.le.0.maddr="0xd0000"
532device		lnc
533hint.lnc.0.at="isa"
534hint.lnc.0.port="0x280"
535hint.lnc.0.irq="10"
536hint.lnc.0.drq="0"
537device		rdp	1
538hint.rdp.0.at="isa"
539hint.rdp.0.port="0x378"
540hint.rdp.0.irq="7"
541hint.rdp.0.flags="2"
542device		sbni
543hint.sbni.0.at="isa"
544hint.sbni.0.port="0x210"
545hint.sbni.0.irq="0xefdead"
546hint.sbni.0.flags="0"
547device		sr
548hint.sr.0.at="isa"
549hint.sr.0.port="0x300"
550hint.sr.0.irq="5"
551hint.sr.0.maddr="0xd0000"
552device		oltr
553hint.oltr.0.at="isa"
554device		wl
555hint.wl.0.at="isa"
556hint.wl.0.port="0x300"
557options 	WLCACHE		# enables the signal-strength cache
558options 	WLDEBUG		# enables verbose debugging output
559
560device		ath
561device		ath_hal		# Atheros HAL (includes binary component)
562#device		wlan		# 802.11 layer
563
564#
565# ATA raid adapters
566#
567device		pst
568
569#
570# SCSI host adapters:
571#
572# ncv: NCR 53C500 based SCSI host adapters.
573# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters.
574# stg: TMC 18C30, 18C50 based SCSI host adapters.
575
576device          ncv
577device          nsp
578device          stg
579hint.stg.0.at="isa"
580hint.stg.0.port="0x140"
581hint.stg.0.port="11"
582
583#
584# Adaptec FSA RAID controllers, including integrated DELL controllers,
585# the Dell PERC 2/QC and the HP NetRAID-4M
586device		aac
587device		aacp	# SCSI Passthrough interface (optional, CAM required)
588
589#
590# IBM (now Adaptec) ServeRAID controllers
591device		ips
592
593#
594# SafeNet crypto driver: can be moved to the MI NOTES as soon as
595# it's tested on a big-endian machine
596#
597device		safe		# SafeNet 1141
598options		SAFE_DEBUG	# enable debugging support: hw.safe.debug
599options		SAFE_RNDTEST	# enable rndtest support
600
601#####################################################################
602
603#
604# Miscellaneous hardware:
605#
606# wt: Wangtek and Archive QIC-02/QIC-36 tape drives
607# ctx: Cortex-I frame grabber
608# apm: Laptop Advanced Power Management (experimental)
609# pmtimer: Timer device driver for power management events (APM or ACPI)
610# spigot: The Creative Labs Video Spigot video-acquisition board
611# digi: Digiboard driver
612# gp:  National Instruments AT-GPIB and AT-GPIB/TNT board, PCMCIA-GPIB
613# asc: GI1904-based hand scanners, e.g. the Trust Amiscan Grey
614# gsc: Genius GS-4500 hand scanner.
615# spic: Sony Programmable I/O controller (VAIO notebooks)
616# stl: Stallion EasyIO and EasyConnection 8/32 (cd1400 based)
617# stli: Stallion EasyConnection 8/64, ONboard, Brumby (intelligent)
618
619# Notes on APM
620#  The flags takes the following meaning for apm0:
621#    0x0020  Statclock is broken.
622#  If apm is omitted, some systems require sysctl kern.timecounter.method=1
623#  for correct timekeeping.
624
625# Notes on the spigot:
626#  The video spigot is at 0xad6.  This port address can not be changed.
627#  The irq values may only be 10, 11, or 15
628#  I/O memory is an 8kb region.  Possible values are:
629#    0a0000, 0a2000, ..., 0fffff, f00000, f02000, ..., ffffff
630#    The start address must be on an even boundary.
631#  Add the following option if you want to allow non-root users to be able
632#  to access the spigot.  This option is not secure because it allows users
633#  direct access to the I/O page.
634#  	options SPIGOT_UNSECURE
635
636# Notes on the Specialix SI/XIO driver:
637#  The host card is memory, not IO mapped.
638#  The Rev 1 host cards use a 64K chunk, on a 32K boundary.
639#  The Rev 2 host cards use a 32K chunk, on a 32K boundary.
640#  The cards can use an IRQ of 11, 12 or 15.
641
642# Notes on the Sony Programmable I/O controller
643#  This is a temporary driver that should someday be replaced by something
644#  that hooks into the ACPI layer. The device is hooked to the PIIX4's
645#  General Device 10 decoder, which means you have to fiddle with PCI
646#  registers to map it in, even though it is otherwise treated here as
647#  an ISA device. At the moment, the driver polls, although the device
648#  is capable of generating interrupts. It largely undocumented.
649#  The port location in the hint is where you WANT the device to be
650#  mapped. 0x10a0 seems to be traditional. At the moment the jogdial
651#  is the only thing truly supported, but aparently a fair percentage
652#  of the Vaio extra features are controlled by this device.
653
654# Notes on the Stallion stl and stli drivers:
655#  See src/i386/isa/README.stl for complete instructions.
656#  This is version 0.0.5alpha, unsupported by Stallion.
657#  The stl driver has a secondary IO port hard coded at 0x280.  You need
658#     to change src/i386/isa/stallion.c if you reconfigure this on the boards.
659#  The "flags" and "msize" settings on the stli driver depend on the board:
660#	EasyConnection 8/64 ISA:     flags 23         msize 0x1000
661#	EasyConnection 8/64 EISA:    flags 24         msize 0x10000
662#	EasyConnection 8/64 MCA:     flags 25         msize 0x1000
663#	ONboard ISA:                 flags 4          msize 0x10000
664#	ONboard EISA:                flags 7          msize 0x10000
665#	ONboard MCA:                 flags 3          msize 0x10000
666#	Brumby:                      flags 2          msize 0x4000
667#	Stallion:                    flags 1          msize 0x10000
668
669device		wt	1
670hint.wt.0.at="isa"
671hint.wt.0.port="0x300"
672hint.wt.0.irq="5"
673hint.wt.0.drq="1"
674device		ctx
675hint.ctx.0.at="isa"
676hint.ctx.0.port="0x230"
677hint.ctx.0.maddr="0xd0000"
678device		spigot	1
679hint.spigot.0.at="isa"
680hint.spigot.0.port="0xad6"
681hint.spigot.0.irq="15"
682hint.spigot.0.maddr="0xee000"
683device		apm
684hint.apm.0.flags="0x20"
685device		pmtimer			# Adjust system timer at wakeup time
686device		gp
687hint.gp.0.at="isa"
688hint.gp.0.port="0x2c0"
689device		gsc	1
690hint.gsc.0.at="isa"
691hint.gsc.0.port="0x270"
692hint.gsc.0.drq="3"
693device		digi
694hint.digi.0.at="isa"
695hint.digi.0.port="0x104"
696hint.digi.0.maddr="0xd0000"
697# BIOS & FEP/OS components of device digi.
698device		digi_CX
699device		digi_CX_PCI
700device		digi_EPCX
701device		digi_EPCX_PCI
702device		digi_Xe
703device		digi_Xem
704device		digi_Xr
705device		asc	1
706hint.asc.0.at="isa"
707hint.asc.0.port="0x3EB"
708hint.asc.0.drq="3"
709hint.asc.0.irq="10"
710device		spic
711hint.spic.0.at="isa"
712hint.spic.0.port="0x10a0"
713device		stl
714hint.stl.0.at="isa"
715hint.stl.0.port="0x2a0"
716hint.stl.0.irq="10"
717device		stli
718hint.stli.0.at="isa"
719hint.stli.0.port="0x2a0"
720hint.stli.0.maddr="0xcc000"
721hint.stli.0.flags="23"
722hint.stli.0.msize="0x1000"
723# HOT1 Xilinx 6200 card (http://www.vcc.com/)
724device		xrpu
725
726#
727# Laptop/Notebook options:
728#
729# See also:
730#  apm under `Miscellaneous hardware'
731# above.
732
733# For older notebooks that signal a powerfail condition (external
734# power supply dropped, or battery state low) by issuing an NMI:
735
736options 	POWERFAIL_NMI	# make it beep instead of panicing
737
738#
739# I2C Bus
740#
741# Philips i2c bus support is provided by the `iicbus' device.
742#
743# Supported interfaces:
744# pcf	Philips PCF8584 ISA-bus controller
745#
746device		pcf
747hint.pcf.0.at="isa"
748hint.pcf.0.port="0x320"
749hint.pcf.0.irq="5"
750
751#---------------------------------------------------------------------------
752# ISDN4BSD
753#
754# See /usr/share/examples/isdn/ROADMAP for an introduction to isdn4bsd.
755#
756# i4b passive ISDN cards support contains the following hardware drivers:
757#
758#	isic  - Siemens/Infineon ISDN ISAC/HSCX/IPAC chipset driver
759#	iwic  - Winbond W6692 PCI bus ISDN S/T interface controller
760#	ifpi  - AVM Fritz!Card PCI driver
761#	ifpi2  - AVM Fritz!Card PCI version 2 driver
762#	ihfc  - Cologne Chip HFC ISA/ISA-PnP chipset driver
763#	ifpnp - AVM Fritz!Card PnP driver
764#	itjc  - Siemens ISAC / TJNet Tiger300/320 chipset
765#
766# i4b active ISDN cards support contains the following hardware drivers:
767#
768#	iavc  - AVM B1 PCI, AVM B1 ISA, AVM T1
769#
770# Note that the ``options'' (if given) and ``device'' lines must BOTH
771# be uncommented to enable support for a given card !
772#
773# In addition to a hardware driver (and probably an option) the mandatory
774# ISDN protocol stack devices and the mandatory support device must be
775# enabled as well as one or more devices from the optional devices section.
776#
777#---------------------------------------------------------------------------
778#	isic driver (Siemens/Infineon chipsets)
779#
780device	isic
781#
782# ISA bus non-PnP Cards:
783# ----------------------
784#
785# Teles S0/8 or Niccy 1008
786options 	TEL_S0_8
787hint.isic.0.at="isa"
788hint.isic.0.maddr="0xd0000"
789hint.isic.0.irq="5"
790hint.isic.0.flags="1"
791#
792# Teles S0/16 or Creatix ISDN-S0 or Niccy 1016
793options 	TEL_S0_16
794hint.isic.0.at="isa"
795hint.isic.0.port="0xd80"
796hint.isic.0.maddr="0xd0000"
797hint.isic.0.irq="5"
798hint.isic.0.flags="2"
799#
800# Teles S0/16.3
801options 	TEL_S0_16_3
802hint.isic.0.at="isa"
803hint.isic.0.port="0xd80"
804hint.isic.0.irq="5"
805hint.isic.0.flags="3"
806#
807# AVM A1 or AVM Fritz!Card
808options 	AVM_A1
809hint.isic.0.at="isa"
810hint.isic.0.port="0x340"
811hint.isic.0.irq="5"
812hint.isic.0.flags="4"
813#
814# USRobotics Sportster ISDN TA intern
815options 	USR_STI
816hint.isic.0.at="isa"
817hint.isic.0.port="0x268"
818hint.isic.0.irq="5"
819hint.isic.0.flags="7"
820#
821# ITK ix1 Micro ( < V.3, non-PnP version )
822options 	ITKIX1
823hint.isic.0.at="isa"
824hint.isic.0.port="0x398"
825hint.isic.0.irq="10"
826hint.isic.0.flags="18"
827#
828# ELSA PCC-16
829options 	ELSA_PCC16
830hint.isic.0.at="isa"
831hint.isic.0.port="0x360"
832hint.isic.0.irq="10"
833hint.isic.0.flags="20"
834#
835# ISA bus PnP Cards:
836# ------------------
837#
838# Teles S0/16.3 PnP
839options 	TEL_S0_16_3_P
840#
841# Creatix ISDN-S0 P&P
842options 	CRTX_S0_P
843#
844# Dr. Neuhaus Niccy Go@
845options 	DRN_NGO
846#
847# Sedlbauer Win Speed
848options 	SEDLBAUER
849#
850# Dynalink IS64PH
851options 	DYNALINK
852#
853# ELSA QuickStep 1000pro ISA
854options 	ELSA_QS1ISA
855#
856# Siemens I-Surf 2.0
857options 	SIEMENS_ISURF2
858#
859# Asuscom ISDNlink 128K ISA
860options 	ASUSCOM_IPAC
861#
862# Eicon Diehl DIVA 2.0 and 2.02
863options 	EICON_DIVA
864#
865# Compaq Microcom 610 ISDN card (Compaq series PSB2222I)
866options 	COMPAQ_M610
867#
868# PCI bus Cards:
869# --------------
870#
871# Cyclades Cyclom-Y PCI serial driver
872device		cy	1
873options 	CY_PCI_FASTINTR		# Use with cy_pci unless irq is shared
874hint.cy.0.at="isa"
875hint.cy.0.irq="10"
876hint.cy.0.maddr="0xd4000"
877hint.cy.0.msize="0x2000"
878#
879#---------------------------------------------------------------------------
880# ELSA MicroLink ISDN/PCI (same as ELSA QuickStep 1000pro PCI)
881options 	ELSA_QS1PCI
882#
883#
884#---------------------------------------------------------------------------
885#	ifpnp driver for AVM Fritz!Card PnP
886#
887# AVM Fritz!Card PnP
888device ifpnp
889#
890#---------------------------------------------------------------------------
891#	ihfc driver for Cologne Chip ISA chipsets (experimental!)
892#
893# Teles 16.3c ISA PnP
894# AcerISDN P10 ISA PnP
895# TELEINT ISDN SPEED No.1
896device ihfc
897#
898#---------------------------------------------------------------------------
899#	ifpi driver for AVM Fritz!Card PCI
900#
901# AVM Fritz!Card PCI
902device  ifpi
903#
904#---------------------------------------------------------------------------
905#	ifpi2 driver for AVM Fritz!Card PCI version 2
906#
907# AVM Fritz!Card PCI version 2
908device  "ifpi2"
909#
910#---------------------------------------------------------------------------
911#	iwic driver for Winbond W6692 chipset
912#
913# ASUSCOM P-IN100-ST-D (and other Winbond W6692 based cards)
914device  iwic
915#
916#---------------------------------------------------------------------------
917#	itjc driver for Simens ISAC / TJNet Tiger300/320 chipset
918#
919# Traverse Technologies NETjet-S
920# Teles PCI-TJ
921device  itjc
922#
923#---------------------------------------------------------------------------
924#	iavc driver (AVM active cards, needs i4bcapi driver!)
925#
926device	iavc
927#
928# AVM B1 ISA bus (PnP mode not supported!)
929# ----------------------------------------
930hint.iavc.0.at="isa"
931hint.iavc.0.port="0x150"
932hint.iavc.0.irq="5"
933#
934#---------------------------------------------------------------------------
935#	ISDN Protocol Stack - mandatory for all hardware drivers
936#
937# Q.921 / layer 2 - i4b passive cards D channel handling
938device		"i4bq921"
939#
940# Q.931 / layer 3 - i4b passive cards D channel handling
941device		"i4bq931"
942#
943# layer 4 - i4b common passive and active card handling
944device		"i4b"
945#
946#---------------------------------------------------------------------------
947#	ISDN devices - mandatory for all hardware drivers
948#
949# userland driver to do ISDN tracing (for passive cards only)
950device		"i4btrc"	4
951#
952# userland driver to control the whole thing
953device		"i4bctl"
954#
955#---------------------------------------------------------------------------
956#	ISDN devices - optional
957#
958# userland driver for access to raw B channel
959device		"i4brbch"	4
960#
961# userland driver for telephony
962device		"i4btel"	2
963#
964# network driver for IP over raw HDLC ISDN
965device		"i4bipr"	4
966# enable VJ header compression detection for ipr i/f
967options 	IPR_VJ
968# enable logging of the first n IP packets to isdnd (n=32 here)
969options 	IPR_LOG=32
970#
971# network driver for sync PPP over ISDN; requires an equivalent
972# number of sppp device to be configured
973device		"i4bisppp"	4
974#
975# B-channel interface to the netgraph subsystem
976device		"i4bing"	2
977#
978# CAPI driver needed for active ISDN cards (see iavc driver above)
979device		"i4bcapi"
980#
981#---------------------------------------------------------------------------
982
983#
984# Set the number of PV entries per process.  Increasing this can
985# stop panics related to heavy use of shared memory. However, that can
986# (combined with large amounts of physical memory) cause panics at
987# boot time due the kernel running out of VM space.
988#
989# If you're tweaking this, you might also want to increase the sysctls
990# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target".
991#
992# The value below is the one more than the default.
993#
994options 	PMAP_SHPGPERPROC=201
995
996#
997# Change the size of the kernel virtual address space.  Due to
998# constraints in loader(8) on i386, this must be a multiple of 4.
999# 256 = 1 GB of kernel address space.  Increasing this also causes
1000# a reduction of the address space in user processes.  512 splits
1001# the 4GB cpu address space in half (2GB user, 2GB kernel).
1002#
1003options 	KVA_PAGES=260
1004
1005
1006#####################################################################
1007# ABI Emulation
1008
1009# Enable iBCS2 runtime support for SCO and ISC binaries
1010options 	IBCS2
1011
1012# Emulate spx device for client side of SVR3 local X interface
1013options 	SPX_HACK
1014
1015# Enable Linux ABI emulation
1016options 	COMPAT_LINUX
1017
1018# Enable i386 a.out binary support
1019options 	COMPAT_AOUT
1020
1021# Enable the linux-like proc filesystem support (requires COMPAT_LINUX
1022# and PSEUDOFS)
1023options 	LINPROCFS
1024
1025#
1026# SysVR4 ABI emulation
1027#
1028# The svr4 ABI emulator can be statically compiled into the kernel or loaded as
1029# a KLD module.
1030# The STREAMS network emulation code can also be compiled statically or as a
1031# module.  If loaded as a module, it must be loaded before the svr4 module
1032# (the /usr/sbin/svr4 script does this for you).  If compiling statically,
1033# the `streams' device must be configured into any kernel which also
1034# specifies COMPAT_SVR4.  It is possible to have a statically-configured
1035# STREAMS device and a dynamically loadable svr4 emulator;  the /usr/sbin/svr4
1036# script understands that it doesn't need to load the `streams' module under
1037# those circumstances.
1038# Caveat:  At this time, `options KTRACE' is required for the svr4 emulator
1039# (whether static or dynamic).
1040#
1041options 	COMPAT_SVR4	# build emulator statically
1042options 	DEBUG_SVR4	# enable verbose debugging
1043device		streams		# STREAMS network driver (required for svr4).
1044
1045
1046#####################################################################
1047# VM OPTIONS
1048
1049# Disable the 4 MByte page PSE CPU feature.  The PSE feature allows the
1050# kernel to use a 4 MByte pages to map the kernel instead of 4k pages.
1051# This saves on the amount of memory needed for page tables needed to
1052# map the kernel.  You should only disable this feature as a temporary
1053# workaround if you are having problems with it enabled.
1054#
1055#options 	DISABLE_PSE
1056
1057# Disable the global pages PGE CPU feature.  The PGE feature allows pages
1058# to be marked with the PG_G bit.  TLB entries for these pages are not
1059# flushed from the cache when %cr3 is reloaded.  This can make context
1060# switches less expensive.  You should only disable this feature as a
1061# temporary workaround if you are having problems with it enabled.
1062#
1063#options 	DISABLE_PG_G
1064
1065# KSTACK_PAGES is the number of memory pages to assign to the kernel
1066# stack of each thread.
1067
1068options 	KSTACK_PAGES=3
1069
1070#####################################################################
1071
1072# More undocumented options for linting.
1073# Note that documenting these are not considered an affront.
1074
1075options 	FB_INSTALL_CDEV		# install a CDEV entry in /dev
1076
1077# PECOFF module (Win32 Execution Format)
1078options 	PECOFF_SUPPORT
1079options 	PECOFF_DEBUG
1080
1081options 	ENABLE_ALART
1082options 	I4B_SMP_WORKAROUND
1083options 	I586_PMC_GUPROF=0x70000
1084options 	KBDIO_DEBUG=2
1085options 	KBD_MAXRETRY=4
1086options 	KBD_MAXWAIT=6
1087options 	KBD_RESETDELAY=201
1088
1089options 	PSM_DEBUG=1
1090
1091options 	TIMER_FREQ=((14318182+6)/12)
1092
1093options 	VM_KMEM_SIZE
1094options 	VM_KMEM_SIZE_MAX
1095options 	VM_KMEM_SIZE_SCALE
1096