aboutsummaryrefslogtreecommitdiff
path: root/sys/i386/conf/NOTES
blob: a9674e7ade3674c316668c415006666bec1ab4f4 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
#
# NOTES -- Lines that can be cut/pasted into kernel and hints configs.
#
# This file contains machine dependent kernel configuration notes.  For
# machine independent notes, look in /sys/conf/NOTES.
#
# $FreeBSD$
#

#
# We want LINT to cover profiling as well.
profile         2


#####################################################################
# SMP OPTIONS:
#
# The apic device enables the use of the I/O APIC for interrupt delivery.
# The apic device can be used in both UP and SMP kernels, but is required
# for SMP kernels.  Thus, the apic device is not strictly an SMP option,
# but it is a prerequisite for SMP.
#
# Notes:
#
# HTT CPUs should only be used if they are enabled in the BIOS.  For
# the ACPI case, ACPI only correctly tells us about any HTT CPUs if
# they are enabled.  However, most HTT systems do not list HTT CPUs
# in the MP Table if they are enabled, thus we guess at the HTT CPUs
# for the MP Table case.  However, we shouldn't try to guess and use
# these CPUs if HTT is disabled.  Thus, HTT guessing is only enabled
# for the MP Table if the user explicitly asks for it via the
# MPTABLE_FORCE_HTT option.  Do NOT use this option if you have HTT
# disabled in your BIOS.
#
# IPI_PREEMPTION instructs the kernel to preempt threads running on other
# CPUS if needed.  Relies on the PREEMPTION option

# Mandatory:
device		apic			# I/O apic

# Optional:
options 	MPTABLE_FORCE_HTT	# Enable HTT CPUs with the MP Table
options 	IPI_PREEMPTION

#
# Watchdog routines.
#
options 	MP_WATCHDOG

# Debugging options.
#
options		STOP_NMI		# Stop CPUS using NMI instead of IPI
options 	COUNT_XINVLTLB_HITS	# Counters for TLB events
options 	COUNT_IPIS		# Per-CPU IPI interrupt counters



#####################################################################
# CPU OPTIONS

#
# You must specify at least one CPU (the one you intend to run on);
# deleting the specification for CPUs you don't need to use may make
# parts of the system run faster.
#
cpu		I486_CPU
cpu		I586_CPU		# aka Pentium(tm)
cpu		I686_CPU		# aka Pentium Pro(tm)

#
# Options for CPU features.
#
# CPU_ATHLON_SSE_HACK tries to enable SSE instructions when the BIOS has
# forgotten to enable them.
#
# CPU_BLUELIGHTNING_3X enables triple-clock mode on IBM Blue Lightning
# CPU if CPU supports it.  The default is double-clock mode on
# BlueLightning CPU box.
#
# CPU_BLUELIGHTNING_FPU_OP_CACHE enables FPU operand cache on IBM
# BlueLightning CPU.  It works only with Cyrix FPU, and this option
# should not be used with Intel FPU.
#
# CPU_BTB_EN enables branch target buffer on Cyrix 5x86 (NOTE 1).
#
# CPU_CYRIX_NO_LOCK enables weak locking for the entire address space
# of Cyrix 6x86 and 6x86MX CPUs by setting the NO_LOCK bit of CCR1.
# Otherwise, the NO_LOCK bit of CCR1 is cleared.  (NOTE 3)
#
# CPU_DIRECT_MAPPED_CACHE sets L1 cache of Cyrix 486DLC CPU in direct
# mapped mode.  Default is 2-way set associative mode.
#
# CPU_DISABLE_5X86_LSSER disables load store serialize (i.e., enables
# reorder).  This option should not be used if you use memory mapped
# I/O device(s).
#
# CPU_DISABLE_CMPXCHG disables the CMPXCHG instruction on > i386 IA32
# machines.  VmWare 3.x seems to emulate this instruction poorly, causing
# the guest OS to run very slowly.  This problem appears to be fixed in
# VmWare 4.x, at least in version 4.5.2, so that enabling this option with
# VmWare 4.x will result in locking operations to be 20-30 times slower.
# Enabling this with an SMP kernel will cause the kernel to be unusable.
#
# CPU_DISABLE_SSE explicitly prevents I686_CPU from turning on SSE.
#
# CPU_ELAN enables support for AMDs ElanSC520 CPU.
#    CPU_ELAN_PPS enables precision timestamp code.
#    CPU_ELAN_XTAL sets the clock crystal frequency in Hz.
#
# CPU_ENABLE_LONGRUN enables support for Transmeta Crusoe LongRun
# technology which allows to restrict power consumption of the CPU by
# using group of hw.crusoe.* sysctls.
#
# CPU_FASTER_5X86_FPU enables faster FPU exception handler.
#
# CPU_GEODE is for the SC1100 Geode embedded processor.  This option
# is necessary because the i8254 timecounter is toast.
#
# CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products
# for i386 machines.
#
# CPU_IORT defines I/O clock delay time (NOTE 1).  Default values of
# I/O clock delay time on Cyrix 5x86 and 6x86 are 0 and 7,respectively
# (no clock delay).
#
# CPU_L2_LATENCY specifies the L2 cache latency value.  This option is used
# only when CPU_PPRO2CELERON is defined and Mendocino Celeron is detected.
# The default value is 5.
#
# CPU_LOOP_EN prevents flushing the prefetch buffer if the destination
# of a jump is already present in the prefetch buffer on Cyrix 5x86(NOTE
# 1).
#
# CPU_PPRO2CELERON enables L2 cache of Mendocino Celeron CPUs.  This option
# is useful when you use Socket 8 to Socket 370 converter, because most Pentium
# Pro BIOSs do not enable L2 cache of Mendocino Celeron CPUs.
#
# CPU_RSTK_EN enables return stack on Cyrix 5x86 (NOTE 1).
#
# CPU_SOEKRIS enables support www.soekris.com hardware.
#
# CPU_SUSP_HLT enables suspend on HALT.  If this option is set, CPU
# enters suspend mode following execution of HALT instruction.
#
# CPU_UPGRADE_HW_CACHE eliminates unneeded cache flush instruction(s).
#
# CPU_WT_ALLOC enables write allocation on Cyrix 6x86/6x86MX and AMD
# K5/K6/K6-2 CPUs.
#
# CYRIX_CACHE_WORKS enables CPU cache on Cyrix 486 CPUs with cache
# flush at hold state.
#
# CYRIX_CACHE_REALLY_WORKS enables (1) CPU cache on Cyrix 486 CPUs
# without cache flush at hold state, and (2) write-back CPU cache on
# Cyrix 6x86 whose revision < 2.7 (NOTE 2).
#
# NO_F00F_HACK disables the hack that prevents Pentiums (and ONLY
# Pentiums) from locking up when a LOCK CMPXCHG8B instruction is
# executed.  This option is only needed if I586_CPU is also defined,
# and should be included for any non-Pentium CPU that defines it.
#
# NO_MEMORY_HOLE is an optimisation for systems with AMD K6 processors
# which indicates that the 15-16MB range is *definitely* not being
# occupied by an ISA memory hole.
#
# NOTE 1: The options, CPU_BTB_EN, CPU_LOOP_EN, CPU_IORT,
# CPU_LOOP_EN and CPU_RSTK_EN should not be used because of CPU bugs.
# These options may crash your system.
#
# NOTE 2: If CYRIX_CACHE_REALLY_WORKS is not set, CPU cache is enabled
# in write-through mode when revision < 2.7.  If revision of Cyrix
# 6x86 >= 2.7, CPU cache is always enabled in write-back mode.
#
# NOTE 3: This option may cause failures for software that requires
# locked cycles in order to operate correctly.
#
options 	CPU_ATHLON_SSE_HACK
options 	CPU_BLUELIGHTNING_3X
options 	CPU_BLUELIGHTNING_FPU_OP_CACHE
options 	CPU_BTB_EN
options 	CPU_DIRECT_MAPPED_CACHE
options 	CPU_DISABLE_5X86_LSSER
options 	CPU_DISABLE_CMPXCHG
#options 	CPU_DISABLE_SSE
options 	CPU_ELAN
options 	CPU_ELAN_PPS
options 	CPU_ELAN_XTAL=32768000
options 	CPU_ENABLE_LONGRUN
options 	CPU_FASTER_5X86_FPU
options 	CPU_GEODE
options 	CPU_I486_ON_386
options 	CPU_IORT
options 	CPU_L2_LATENCY=5
options 	CPU_LOOP_EN
options 	CPU_PPRO2CELERON
options 	CPU_RSTK_EN
options 	CPU_SOEKRIS
options 	CPU_SUSP_HLT
options 	CPU_UPGRADE_HW_CACHE
options 	CPU_WT_ALLOC
options 	CYRIX_CACHE_WORKS
options 	CYRIX_CACHE_REALLY_WORKS
#options 	NO_F00F_HACK

# Debug options
options 	NPX_DEBUG	# enable npx debugging

#
# PERFMON causes the driver for Pentium/Pentium Pro performance counters
# to be compiled.  See perfmon(4) for more information.
#
options 	PERFMON

#
# XBOX causes the kernel to be bootable on the Microsoft XBox console system.
# The resulting kernel will auto-detect whether it is being booted on a XBox,
# so kernels compiled with this option will also work on an ordinary PC.
# This option require I686_CPU.
#
# xboxfb includes support for the XBox frame buffer device. It is fully USB-
# keyboard aware, and will only be used if an xbox is detected. This option
# (obviously) requires XBOX support in your kernel.
#
# NOTE: xboxfb currently conflicts with syscons(4); if you have an XBOX and
# include both in your kernel; you will not get any video output. Ordinary
# PC's do not suffer from this.
#
options		XBOX
device		xboxfb


#####################################################################
# NETWORKING OPTIONS

#
# DEVICE_POLLING adds support for mixed interrupt-polling handling
# of network device drivers, which has significant benefits in terms
# of robustness to overloads and responsivity, as well as permitting
# accurate scheduling of the CPU time between kernel network processing
# and other activities.  The drawback is a moderate (up to 1/HZ seconds)
# potential increase in response times.
# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
# to achieve smoother behaviour.
# Additionally, you can enable/disable polling at runtime with help of
# the ifconfig(8) utility, and select the CPU fraction reserved to
# userland with the sysctl variable kern.polling.user_frac
# (default 50, range 0..100).
#
# Not all device drivers support this mode of operation at the time of
# this writing.  See polling(4) for more details.

options 	DEVICE_POLLING


#####################################################################
# CLOCK OPTIONS

# The following options are used for debugging clock behavior only, and
# should not be used for production systems.

# CLK_CALIBRATION_LOOP causes clock calibration to be run in a loop at
# startup until the user presses a key.  (The i8254 clock is always
# calibrated relative to the RTC (mc146818a) and this option causes the
# calibration to be repeated.)
options 	CLK_CALIBRATION_LOOP

# CLK_USE_I8254_CALIBRATION causes the calibrated frequency of the i8254
# clock to actually be used.
options 	CLK_USE_I8254_CALIBRATION


#####################################################################
# MISCELLANEOUS DEVICES AND OPTIONS

device		speaker		#Play IBM BASIC-style noises out your speaker
hint.speaker.0.at="isa"
hint.speaker.0.port="0x61"
device		gzip		#Exec gzipped a.out's.  REQUIRES COMPAT_AOUT!
device		apm_saver	# Requires APM


#####################################################################
# HARDWARE BUS CONFIGURATION

#
# ISA bus
#
device		isa		# Required by npx(4)

#
# Options for `isa':
#
# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
# This option breaks suspend/resume on some portables.
#
# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A
# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
# Automatic EOI is documented not to work for for the slave with the
# original i8259A, but it works for some clones and some integrated
# versions.
#
# MAXMEM specifies the amount of RAM on the machine; if this is not
# specified, FreeBSD will first read the amount of memory from the CMOS
# RAM, so the amount of memory will initially be limited to 64MB or 16MB
# depending on the BIOS.  If the BIOS reports 64MB, a memory probe will
# then attempt to detect the installed amount of RAM.  If this probe
# fails to detect >64MB RAM you will have to use the MAXMEM option.
# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
# be 131072 (128 * 1024).
#
# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
# reset the CPU for reboot.  This is needed on some systems with broken
# keyboard controllers.

options 	AUTO_EOI_1
#options 	AUTO_EOI_2

options 	MAXMEM=(128*1024)
#options 	BROKEN_KEYBOARD_RESET

#
# EISA bus
#
# The EISA bus device is `eisa'.  It provides auto-detection and
# configuration support for all devices on the EISA bus.

device		eisa

# By default, only 10 EISA slots are probed, since the slot numbers
# above clash with the configuration address space of the PCI subsystem,
# and the EISA probe is not very smart about this.  This is sufficient
# for most machines, but in particular the HP NetServer LC series comes
# with an onboard AIC7770 dual-channel SCSI controller on EISA slot #11,
# thus you need to bump this figure to 12 for them.
options 	EISA_SLOTS=12

#
# MCA bus:
#
# The MCA bus device is `mca'.  It provides auto-detection and
# configuration support for all devices on the MCA bus.
# No hints are required for MCA.

device		mca

#
# PCI bus & PCI options:
#
device		pci

#
# AGP GART support
device		agp


#####################################################################
# HARDWARE DEVICE CONFIGURATION

# To include support for VGA VESA video modes
options 	VESA

# Turn on extra debugging checks and output for VESA support.
options 	VESA_DEBUG

#
# The Numeric Processing eXtension driver.  This is non-optional.
device		npx
hint.npx.0.flags="0x0"
hint.npx.0.irq="13"

#
# `flags' for npx0:
#	0x01	don't use the npx registers to optimize bcopy.
#	0x02	don't use the npx registers to optimize bzero.
#	0x04	don't use the npx registers to optimize copyin or copyout.
# The npx registers are normally used to optimize copying and zeroing when
# all of the following conditions are satisfied:
#	I586_CPU is an option
#	the cpu is an i586 (perhaps not a Pentium)
#	the probe for npx0 succeeds
#	INT 16 exception handling works.
# Then copying and zeroing using the npx registers is normally 30-100% faster.
# The flags can be used to control cases where it doesn't work or is slower.
# Setting them at boot time using hints works right (the optimizations
# are not used until later in the bootstrap when npx0 is attached).
# Flag 0x08 automatically disables the i586 optimized routines.
#

#
# Optional devices:
#

# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support.  This will create
# the /dev/3dfx0 device to work with glide implementations.  This should get
# linked to /dev/3dfx and /dev/voodoo.  Note that this is not the same as
# the tdfx DRI module from XFree86 and is completely unrelated.
#
# To enable Linuxulator support, one must also include COMPAT_LINUX in the
# config as well.  The other option is to load both as modules.

device		tdfx			# Enable 3Dfx Voodoo support
device		tdfx_linux		# Enable Linuxulator support

#
# ACPI support using the Intel ACPI Component Architecture reference
# implementation.
#
# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer
# kernel environment variables to select initial debugging levels for the
# Intel ACPICA code.  (Note that the Intel code must also have USE_DEBUGGER
# defined when it is built).
#
# ACPI_NO_SEMAPHORES makes the AcpiOs*Semaphore routines a no-op.
#
# ACPICA_PEDANTIC enables strict checking of AML.  Our default is to
# relax these checks to allow code generated by the Microsoft compiler
# to still execute.
#
# Note that building ACPI into the kernel is deprecated; the module is
# normally loaded automatically by the loader.

device		acpi
options 	ACPI_DEBUG
#!options 	ACPI_NO_SEMAPHORES
#!options 	ACPICA_PEDANTIC

# ACPI Asus Extras (LCD backlight/brightness, video output, etc.)
device		acpi_asus

# ACPI Fujitsu Extras (Buttons)
device		acpi_fujitsu

# ACPI extras driver for IBM laptops
device         acpi_ibm

# ACPI Panasonic Extras (LCD backlight/brightness, video output, etc.)
device		acpi_panasonic

# ACPI Sony extra (LCD brightness)
device		acpi_sony

# ACPI Toshiba Extras (LCD backlight/brightness, video output, etc.)
device		acpi_toshiba

# ACPI Video Extensions (LCD backlight/brightness, video output, etc.)
device		acpi_video

# ACPI Docking Station
device		acpi_dock

# The cpufreq(4) driver provides support for non-ACPI CPU frequency control
device		cpufreq

# Direct Rendering modules for 3D acceleration.
device		drm		# DRM core module required by DRM drivers
device		i915drm		# Intel i830 through i915
device		mach64drm	# ATI Rage Pro, Rage Mobility P/M, Rage XL
device		mgadrm		# AGP Matrox G200, G400, G450, G550
device		r128drm		# ATI Rage 128
device		radeondrm	# ATI Radeon
device		savagedrm	# S3 Savage3D, Savage4
device		sisdrm		# SiS 300/305, 540, 630
device		tdfxdrm		# 3dfx Voodoo 3/4/5 and Banshee
options 	DRM_DEBUG	# Include debug printfs (slow)

#
# mse: Logitech and ATI InPort bus mouse ports

device		mse
hint.mse.0.at="isa"
hint.mse.0.port="0x23c"
hint.mse.0.irq="5"

#
# Network interfaces:
#

# ar:   Arnet SYNC/570i hdlc sync 2/4 port V.35/X.21 serial driver
#       (requires sppp)
# arl:	Aironet Arlan 655 wireless adapters.
# ath:  Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
# ce:   Cronyx Tau-PCI/32 sync single/dual port G.703/E1 serial adaptor
#       with 32 HDLC subchannels (requires sppp (default), or NETGRAPH if
#       NETGRAPH_CRONYX is configured)
# cp:   Cronyx Tau-PCI sync single/dual/four port
#       V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1
#       serial adaptor (requires sppp (default), or NETGRAPH if
#       NETGRAPH_CRONYX is configured)
# cs:   IBM Etherjet and other Crystal Semi CS89x0-based adapters
# ctau: Cronyx Tau sync dual port V.35/RS-232/RS-530/RS-449/X.21/G.703/E1
#       serial adaptor (requires sppp (default), or NETGRAPH if
#       NETGRAPH_CRONYX is configured)
# cx:   Cronyx Sigma multiport sync/async adapter (requires sppp (default),
#       or NETGRAPH if NETGRAPH_CRONYX is configured)
# ed:   Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
#       HP PC Lan+, various PC Card devices (refer to etc/defaults/pccard.conf)
#       (requires miibus)
# ie:   AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210;
#       Intel EtherExpress
# ipw:	Intel PRO/Wireless 2100 IEEE 802.11 adapter
# iwi:	Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11 adapters
# nfe:	nVidia nForce MCP on-board Ethernet Networking (BSD open source)
# nve:	nVidia nForce MCP on-board Ethernet Networking
# oltr: Olicom ISA token-ring adapters OC-3115, OC-3117, OC-3118 and OC-3133.
#       Olicom PCI token-ring adapters OC-3136, OC-3137, OC-3139, OC-3140,
#       OC-3141, OC-3540 and OC-3250.
# ral:	Ralink Technology IEEE 802.11 wireless adapter
# sbni: Granch SBNI12-xx ISA and PCI adapters
# sr:   RISCom/N2 hdlc sync 1/2 port V.35/X.21 serial driver (requires sppp)
# ural:	Ralink Technology RT2500USB IEEE 802.11 wireless adapter
# wl:   Lucent Wavelan (ISA card only).

# Order for ISA/EISA devices is important here

device		ar
hint.ar.0.at="isa"
hint.ar.0.port="0x300"
hint.ar.0.irq="10"
hint.ar.0.maddr="0xd0000"
device		arl
hint.arl.0.at="isa"
hint.arl.0.irq="9"
hint.arl.0.maddr="0xd0000"
device		ce
device		cp
device		cs
hint.cs.0.at="isa"
hint.cs.0.port="0x300"
device		ctau
hint.ctau.0.at="isa"
hint.ctau.0.port="0x240"
hint.ctau.0.irq="15"
hint.ctau.0.drq="7"
device		cx
hint.cx.0.at="isa"
hint.cx.0.port="0x240"
hint.cx.0.irq="15"
hint.cx.0.drq="7"
#options 	NETGRAPH_CRONYX		# Enable NETGRAPH support for Cronyx adapter(s)
device		ed
options 	ED_3C503
options 	ED_HPP
options 	ED_SIC
hint.ed.0.at="isa"
hint.ed.0.port="0x280"
hint.ed.0.irq="5"
hint.ed.0.maddr="0xd8000"
device		ie			# Hints only required for Starlan
hint.ie.2.at="isa"
hint.ie.2.port="0x300"
hint.ie.2.irq="5"
hint.ie.2.maddr="0xd0000"
device		iwi
device		ipw
# Hint for the i386-only ISA front-end of le(4).
hint.le.0.at="isa"
hint.le.0.port="0x280"
hint.le.0.irq="10"
hint.le.0.drq="0"
device		nfe		# nVidia nForce MCP on-board Ethernet Networking
device		nve		# nVidia nForce MCP on-board Ethernet Networking
device		oltr
hint.oltr.0.at="isa"
device		ral
device		sbni
hint.sbni.0.at="isa"
hint.sbni.0.port="0x210"
hint.sbni.0.irq="0xefdead"
hint.sbni.0.flags="0"
device		sr
hint.sr.0.at="isa"
hint.sr.0.port="0x300"
hint.sr.0.irq="5"
hint.sr.0.maddr="0xd0000"
device		ural
device		wl
hint.wl.0.at="isa"
hint.wl.0.port="0x300"
options 	WLCACHE		# enables the signal-strength cache
options 	WLDEBUG		# enables verbose debugging output

device		ath
device		ath_hal		# Atheros HAL (includes binary component)
#device		ath_rate_amrr	# AMRR rate control for ath driver
#device		ath_rate_onoe	# Onoe rate control for ath driver
device		ath_rate_sample	# SampleRate rate control for the ath driver
#device		wlan		# 802.11 layer

#
# ATA raid adapters
#
device		pst

#
# Areca 11xx and 12xx series of SATA II RAID controllers.
# CAM is required.
#
device		arcmsr		# Areca SATA II RAID

#
# 3ware 9000 series PATA/SATA RAID controller driver and options.
# The driver is implemented as a SIM, and so, needs the CAM infrastructure.
#
options 	TWA_DEBUG		# 0-10; 10 prints the most messages.
options 	TWA_FLASH_FIRMWARE	# firmware image bundled when defined.
device		twa			# 3ware 9000 series PATA/SATA RAID

#
# SCSI host adapters:
#
# ncv: NCR 53C500 based SCSI host adapters.
# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters.
# stg: TMC 18C30, 18C50 based SCSI host adapters.

device		ncv
device		nsp
device		stg
hint.stg.0.at="isa"
hint.stg.0.port="0x140"
hint.stg.0.port="11"

#
# Adaptec FSA RAID controllers, including integrated DELL controllers,
# the Dell PERC 2/QC and the HP NetRAID-4M
device		aac
device		aacp	# SCSI Passthrough interface (optional, CAM required)

# The 'asr' driver provides support for current DPT/Adaptec SCSI RAID
# controllers (SmartRAID V and VI and later).
# These controllers require the CAM infrastructure.
#
device		asr

#
# Highpoint RocketRAID 182x.  This is really just software RAID on a
# Marvell SATA chip.
device		hptmv

#
# Highpoint RocketRAID 232x.  This is software RAID but with hardware
# acceleration assistance for RAID_5.
device		rr232x

#
# IBM (now Adaptec) ServeRAID controllers
device		ips

#
# SafeNet crypto driver: can be moved to the MI NOTES as soon as
# it's tested on a big-endian machine
#
device		safe		# SafeNet 1141
options 	SAFE_DEBUG	# enable debugging support: hw.safe.debug
options 	SAFE_RNDTEST	# enable rndtest support

#####################################################################

#
# Miscellaneous hardware:
#
# apm: Laptop Advanced Power Management (experimental)
# pmtimer: Timer device driver for power management events (APM or ACPI)
# smapi: System Management Application Program Interface driver
# smbios: DMI/SMBIOS entry point
# vpd: Vital Product Data kernel interface
# cy: Cyclades serial driver
# digi: Digiboard driver
# spic: Sony Programmable I/O controller (VAIO notebooks)

# Notes on APM
#  The flags takes the following meaning for apm0:
#    0x0020  Statclock is broken.

# Notes on the Specialix SI/XIO driver:
#  The host card is memory, not IO mapped.
#  The Rev 1 host cards use a 64K chunk, on a 32K boundary.
#  The Rev 2 host cards use a 32K chunk, on a 32K boundary.
#  The cards can use an IRQ of 11, 12 or 15.

# Notes on the Sony Programmable I/O controller
#  This is a temporary driver that should someday be replaced by something
#  that hooks into the ACPI layer.  The device is hooked to the PIIX4's
#  General Device 10 decoder, which means you have to fiddle with PCI
#  registers to map it in, even though it is otherwise treated here as
#  an ISA device.  At the moment, the driver polls, although the device
#  is capable of generating interrupts.  It largely undocumented.
#  The port location in the hint is where you WANT the device to be
#  mapped.  0x10a0 seems to be traditional.  At the moment the jogdial
#  is the only thing truly supported, but apparently a fair percentage
#  of the Vaio extra features are controlled by this device.

device		apm
hint.apm.0.flags="0x20"
device		smapi
device		smbios
device		vpd
device		pmtimer			# Adjust system timer at wakeup time
device		cy
options 	CY_PCI_FASTINTR		# Use with cy_pci unless irq is shared
hint.cy.0.at="isa"
hint.cy.0.irq="10"
hint.cy.0.maddr="0xd4000"
hint.cy.0.msize="0x2000"
device		digi
hint.digi.0.at="isa"
hint.digi.0.port="0x104"
hint.digi.0.maddr="0xd0000"
# BIOS & FEP/OS components of device digi.
device		digi_CX
device		digi_CX_PCI
device		digi_EPCX
device		digi_EPCX_PCI
device		digi_Xe
device		digi_Xem
device		digi_Xr
# Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724)
device		pbio
hint.pbio.0.at="isa"
hint.pbio.0.port="0x360"
device		spic
hint.spic.0.at="isa"
hint.spic.0.port="0x10a0"
# HOT1 Xilinx 6200 card (http://www.vcc.com/)
device		xrpu

#
# Laptop/Notebook options:
#
# See also:
#  apm under `Miscellaneous hardware'
# above.

# For older notebooks that signal a powerfail condition (external
# power supply dropped, or battery state low) by issuing an NMI:

options 	POWERFAIL_NMI	# make it beep instead of panicing

#
# I2C Bus
#
# Philips i2c bus support is provided by the `iicbus' device.
#
# Supported interfaces:
# pcf	Philips PCF8584 ISA-bus controller
#
device		pcf
hint.pcf.0.at="isa"
hint.pcf.0.port="0x320"
hint.pcf.0.irq="5"

#
# Hardware watchdog timers:
#
# ichwd: Intel ICH watchdog timer
#
device		ichwd

#---------------------------------------------------------------------------
# ISDN4BSD
#
# See /usr/share/examples/isdn/ROADMAP for an introduction to isdn4bsd.
#
# i4b passive ISDN cards support contains the following hardware drivers:
#
#	isic  - Siemens/Infineon ISDN ISAC/HSCX/IPAC chipset driver
#	iwic  - Winbond W6692 PCI bus ISDN S/T interface controller
#	ifpi  - AVM Fritz!Card PCI driver
#	ifpi2  - AVM Fritz!Card PCI version 2 driver
#	ihfc  - Cologne Chip HFC ISA/ISA-PnP chipset driver
#	ifpnp - AVM Fritz!Card PnP driver
#	itjc  - Siemens ISAC / TJNet Tiger300/320 chipset
#
# i4b active ISDN cards support contains the following hardware drivers:
#
#	iavc  - AVM B1 PCI, AVM B1 ISA, AVM T1
#
# Note that the ``options'' (if given) and ``device'' lines must BOTH
# be uncommented to enable support for a given card !
#
# In addition to a hardware driver (and probably an option) the mandatory
# ISDN protocol stack devices and the mandatory support device must be
# enabled as well as one or more devices from the optional devices section.
#
#---------------------------------------------------------------------------
#	isic driver (Siemens/Infineon chipsets)
#
device	isic
#
# ISA bus non-PnP Cards:
# ----------------------
#
# Teles S0/8 or Niccy 1008
options 	TEL_S0_8
hint.isic.0.at="isa"
hint.isic.0.maddr="0xd0000"
hint.isic.0.irq="5"
hint.isic.0.flags="1"
#
# Teles S0/16 or Creatix ISDN-S0 or Niccy 1016
options 	TEL_S0_16
hint.isic.0.at="isa"
hint.isic.0.port="0xd80"
hint.isic.0.maddr="0xd0000"
hint.isic.0.irq="5"
hint.isic.0.flags="2"
#
# Teles S0/16.3
options 	TEL_S0_16_3
hint.isic.0.at="isa"
hint.isic.0.port="0xd80"
hint.isic.0.irq="5"
hint.isic.0.flags="3"
#
# AVM A1 or AVM Fritz!Card
options 	AVM_A1
hint.isic.0.at="isa"
hint.isic.0.port="0x340"
hint.isic.0.irq="5"
hint.isic.0.flags="4"
#
# USRobotics Sportster ISDN TA intern
options 	USR_STI
hint.isic.0.at="isa"
hint.isic.0.port="0x268"
hint.isic.0.irq="5"
hint.isic.0.flags="7"
#
# ITK ix1 Micro ( < V.3, non-PnP version )
options 	ITKIX1
hint.isic.0.at="isa"
hint.isic.0.port="0x398"
hint.isic.0.irq="10"
hint.isic.0.flags="18"
#
# ELSA PCC-16
options 	ELSA_PCC16
hint.isic.0.at="isa"
hint.isic.0.port="0x360"
hint.isic.0.irq="10"
hint.isic.0.flags="20"
#
# ISA bus PnP Cards:
# ------------------
#
# Teles S0/16.3 PnP
options 	TEL_S0_16_3_P
#
# Creatix ISDN-S0 P&P
options 	CRTX_S0_P
#
# Dr. Neuhaus Niccy Go@
options 	DRN_NGO
#
# Sedlbauer Win Speed
options 	SEDLBAUER
#
# Dynalink IS64PH
options 	DYNALINK
#
# ELSA QuickStep 1000pro ISA
options 	ELSA_QS1ISA
#
# Siemens I-Surf 2.0
options 	SIEMENS_ISURF2
#
# Asuscom ISDNlink 128K ISA
options 	ASUSCOM_IPAC
#
# Eicon Diehl DIVA 2.0 and 2.02
options 	EICON_DIVA
#
# Compaq Microcom 610 ISDN card (Compaq series PSB2222I)
options 	COMPAQ_M610
#
# PCI bus Cards:
# --------------
#
# ELSA MicroLink ISDN/PCI (same as ELSA QuickStep 1000pro PCI)
options 	ELSA_QS1PCI
#
#---------------------------------------------------------------------------
#	ifpnp driver for AVM Fritz!Card PnP
#
# AVM Fritz!Card PnP
device		ifpnp
#
#---------------------------------------------------------------------------
#	ihfc driver for Cologne Chip ISA chipsets (experimental!)
#
# Teles 16.3c ISA PnP
# AcerISDN P10 ISA PnP
# TELEINT ISDN SPEED No.1
device		ihfc
#
#---------------------------------------------------------------------------
#	ifpi driver for AVM Fritz!Card PCI
#
# AVM Fritz!Card PCI
device		ifpi
#
#---------------------------------------------------------------------------
#	ifpi2 driver for AVM Fritz!Card PCI version 2
#
# AVM Fritz!Card PCI version 2
device		ifpi2
#
#---------------------------------------------------------------------------
#	iwic driver for Winbond W6692 chipset
#
# ASUSCOM P-IN100-ST-D (and other Winbond W6692 based cards)
device		iwic
#
#---------------------------------------------------------------------------
#	itjc driver for Siemens ISAC / TJNet Tiger300/320 chipset
#
# Traverse Technologies NETjet-S
# Teles PCI-TJ
device		itjc
#
#---------------------------------------------------------------------------
#	iavc driver (AVM active cards, needs i4bcapi driver!)
#
device		iavc
#
# AVM B1 ISA bus (PnP mode not supported!)
# ----------------------------------------
hint.iavc.0.at="isa"
hint.iavc.0.port="0x150"
hint.iavc.0.irq="5"
#
#---------------------------------------------------------------------------
#	ISDN Protocol Stack - mandatory for all hardware drivers
#
# Q.921 / layer 2 - i4b passive cards D channel handling
device		i4bq921
#
# Q.931 / layer 3 - i4b passive cards D channel handling
device		i4bq931
#
# layer 4 - i4b common passive and active card handling
device		i4b
#
#---------------------------------------------------------------------------
#	ISDN devices - mandatory for all hardware drivers
#
# userland driver to do ISDN tracing (for passive cards only)
device		i4btrc
options 	NI4BTRC=4
#
# userland driver to control the whole thing
device		i4bctl
#
#---------------------------------------------------------------------------
#	ISDN devices - optional
#
# userland driver for access to raw B channel
device		i4brbch
options 	NI4BRBCH=4
#
# userland driver for telephony
device		i4btel
options 	NI4BTEL=2
#
# network driver for IP over raw HDLC ISDN
device		i4bipr
options 	NI4BIPR=4
# enable VJ header compression detection for ipr i/f
options 	IPR_VJ
# enable logging of the first n IP packets to isdnd (n=32 here)
options 	IPR_LOG=32
#
# network driver for sync PPP over ISDN; requires an equivalent
# number of sppp device to be configured
device		i4bisppp
options 	NI4BISPPP=4
#
# B-channel interface to the netgraph subsystem
device		i4bing
options 	NI4BING=2
#
# CAPI driver needed for active ISDN cards (see iavc driver above)
device		i4bcapi
#
#---------------------------------------------------------------------------

#
# System Management Bus (SMB)
#
options 	ENABLE_ALART		# Control alarm on Intel intpm driver

#
# Set the number of PV entries per process.  Increasing this can
# stop panics related to heavy use of shared memory.  However, that can
# (combined with large amounts of physical memory) cause panics at
# boot time due the kernel running out of VM space.
#
# If you're tweaking this, you might also want to increase the sysctls
# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target".
#
# The value below is the one more than the default.
#
options 	PMAP_SHPGPERPROC=201

#
# Change the size of the kernel virtual address space.  Due to
# constraints in loader(8) on i386, this must be a multiple of 4.
# 256 = 1 GB of kernel address space.  Increasing this also causes
# a reduction of the address space in user processes.  512 splits
# the 4GB cpu address space in half (2GB user, 2GB kernel).
#
options 	KVA_PAGES=260


#####################################################################
# ABI Emulation

# Enable iBCS2 runtime support for SCO and ISC binaries
options 	IBCS2

# Emulate spx device for client side of SVR3 local X interface
options 	SPX_HACK

# Enable Linux ABI emulation
options 	COMPAT_LINUX

# Enable i386 a.out binary support
options 	COMPAT_AOUT

# Enable the linux-like proc filesystem support (requires COMPAT_LINUX
# and PSEUDOFS)
options 	LINPROCFS

#Enable the linux-like sys filesystem support (requires COMPAT_LINUX
# and PSEUDOFS)
options		LINSYSFS

#
# SysVR4 ABI emulation
#
# The svr4 ABI emulator can be statically compiled into the kernel or loaded as
# a KLD module.
# The STREAMS network emulation code can also be compiled statically or as a
# module.  If loaded as a module, it must be loaded before the svr4 module
# (the /usr/sbin/svr4 script does this for you).  If compiling statically,
# the `streams' device must be configured into any kernel which also
# specifies COMPAT_SVR4.  It is possible to have a statically-configured
# STREAMS device and a dynamically loadable svr4 emulator;  the /usr/sbin/svr4
# script understands that it doesn't need to load the `streams' module under
# those circumstances.
# Caveat:  At this time, `options KTRACE' is required for the svr4 emulator
# (whether static or dynamic).
#
options 	COMPAT_SVR4	# build emulator statically
options 	DEBUG_SVR4	# enable verbose debugging
device		streams		# STREAMS network driver (required for svr4).

# Enable NDIS binary driver support
options 	NDISAPI
device		ndis


#####################################################################
# VM OPTIONS

# Disable the 4 MByte page PSE CPU feature.  The PSE feature allows the
# kernel to use 4 MByte pages to map the kernel instead of 4k pages.
# This saves on the amount of memory needed for page tables needed to
# map the kernel.  You should only disable this feature as a temporary
# workaround if you are having problems with it enabled.
#
#options 	DISABLE_PSE

# Disable the global pages PGE CPU feature.  The PGE feature allows pages
# to be marked with the PG_G bit.  TLB entries for these pages are not
# flushed from the cache when %cr3 is reloaded.  This can make context
# switches less expensive.  You should only disable this feature as a
# temporary workaround if you are having problems with it enabled.
#
#options 	DISABLE_PG_G

# KSTACK_PAGES is the number of memory pages to assign to the kernel
# stack of each thread.

options 	KSTACK_PAGES=3

#####################################################################

# More undocumented options for linting.
# Note that documenting these are not considered an affront.

options 	FB_INSTALL_CDEV		# install a CDEV entry in /dev

# PECOFF module (Win32 Execution Format)
options 	PECOFF_SUPPORT
options 	PECOFF_DEBUG

options 	I4B_SMP_WORKAROUND
options 	I586_PMC_GUPROF=0x70000
options 	KBDIO_DEBUG=2
options 	KBD_MAXRETRY=4
options 	KBD_MAXWAIT=6
options 	KBD_RESETDELAY=201

options 	PSM_DEBUG=1

options 	TIMER_FREQ=((14318182+6)/12)

options 	VM_KMEM_SIZE
options 	VM_KMEM_SIZE_MAX
options 	VM_KMEM_SIZE_SCALE


# The I/O device
device		io

# asr old ioctls support, needed by raidutils

options		ASR_COMPAT