The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/i386/conf/NOTES

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    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: releng/8.1/sys/i386/conf/NOTES 205706 2010-03-26 18:54:25Z jhb $
    8 #
    9 
   10 #
   11 # We want LINT to cover profiling as well.
   12 profile         2
   13 
   14 
   15 #####################################################################
   16 # SMP OPTIONS:
   17 #
   18 # The apic device enables the use of the I/O APIC for interrupt delivery.
   19 # The apic device can be used in both UP and SMP kernels, but is required
   20 # for SMP kernels.  Thus, the apic device is not strictly an SMP option,
   21 # but it is a prerequisite for SMP.
   22 #
   23 # Notes:
   24 #
   25 # HTT CPUs should only be used if they are enabled in the BIOS.  For
   26 # the ACPI case, ACPI only correctly tells us about any HTT CPUs if
   27 # they are enabled.  However, most HTT systems do not list HTT CPUs
   28 # in the MP Table if they are enabled, thus we guess at the HTT CPUs
   29 # for the MP Table case.  However, we shouldn't try to guess and use
   30 # these CPUs if HTT is disabled.  Thus, HTT guessing is only enabled
   31 # for the MP Table if the user explicitly asks for it via the
   32 # MPTABLE_FORCE_HTT option.  Do NOT use this option if you have HTT
   33 # disabled in your BIOS.
   34 #
   35 # IPI_PREEMPTION instructs the kernel to preempt threads running on other
   36 # CPUS if needed.  Relies on the PREEMPTION option
   37 
   38 # Mandatory:
   39 device          apic                    # I/O apic
   40 
   41 # Optional:
   42 options         MPTABLE_FORCE_HTT       # Enable HTT CPUs with the MP Table
   43 options         IPI_PREEMPTION
   44 
   45 #
   46 # Watchdog routines.
   47 #
   48 options         MP_WATCHDOG
   49 
   50 # Debugging options.
   51 #
   52 options         COUNT_XINVLTLB_HITS     # Counters for TLB events
   53 options         COUNT_IPIS              # Per-CPU IPI interrupt counters
   54 
   55 
   56 
   57 #####################################################################
   58 # CPU OPTIONS
   59 
   60 #
   61 # You must specify at least one CPU (the one you intend to run on);
   62 # deleting the specification for CPUs you don't need to use may make
   63 # parts of the system run faster.
   64 #
   65 cpu             I486_CPU
   66 cpu             I586_CPU                # aka Pentium(tm)
   67 cpu             I686_CPU                # aka Pentium Pro(tm)
   68 
   69 #
   70 # Options for CPU features.
   71 #
   72 # CPU_ATHLON_SSE_HACK tries to enable SSE instructions when the BIOS has
   73 # forgotten to enable them.
   74 #
   75 # CPU_BLUELIGHTNING_3X enables triple-clock mode on IBM Blue Lightning
   76 # CPU if CPU supports it.  The default is double-clock mode on
   77 # BlueLightning CPU box.
   78 #
   79 # CPU_BLUELIGHTNING_FPU_OP_CACHE enables FPU operand cache on IBM
   80 # BlueLightning CPU.  It works only with Cyrix FPU, and this option
   81 # should not be used with Intel FPU.
   82 #
   83 # CPU_BTB_EN enables branch target buffer on Cyrix 5x86 (NOTE 1).
   84 #
   85 # CPU_CYRIX_NO_LOCK enables weak locking for the entire address space
   86 # of Cyrix 6x86 and 6x86MX CPUs by setting the NO_LOCK bit of CCR1.
   87 # Otherwise, the NO_LOCK bit of CCR1 is cleared.  (NOTE 3)
   88 #
   89 # CPU_DIRECT_MAPPED_CACHE sets L1 cache of Cyrix 486DLC CPU in direct
   90 # mapped mode.  Default is 2-way set associative mode.
   91 #
   92 # CPU_DISABLE_5X86_LSSER disables load store serialize (i.e., enables
   93 # reorder).  This option should not be used if you use memory mapped
   94 # I/O device(s).
   95 #
   96 # CPU_DISABLE_CMPXCHG disables the CMPXCHG instruction on > i386 IA32
   97 # machines.  VmWare 3.x seems to emulate this instruction poorly, causing
   98 # the guest OS to run very slowly.  This problem appears to be fixed in
   99 # VmWare 4.x, at least in version 4.5.2, so that enabling this option with
  100 # VmWare 4.x will result in locking operations to be 20-30 times slower.
  101 # Enabling this with an SMP kernel will cause the kernel to be unusable.
  102 #
  103 # CPU_DISABLE_SSE explicitly prevents I686_CPU from turning on SSE.
  104 #
  105 # CPU_ELAN enables support for AMDs ElanSC520 CPU.
  106 #    CPU_ELAN_PPS enables precision timestamp code.
  107 #    CPU_ELAN_XTAL sets the clock crystal frequency in Hz.
  108 #
  109 # CPU_ENABLE_LONGRUN enables support for Transmeta Crusoe LongRun
  110 # technology which allows to restrict power consumption of the CPU by
  111 # using group of hw.crusoe.* sysctls.
  112 #
  113 # CPU_FASTER_5X86_FPU enables faster FPU exception handler.
  114 #
  115 # CPU_GEODE is for the SC1100 Geode embedded processor.  This option
  116 # is necessary because the i8254 timecounter is toast.
  117 #
  118 # CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products
  119 # for i386 machines.
  120 #
  121 # CPU_IORT defines I/O clock delay time (NOTE 1).  Default values of
  122 # I/O clock delay time on Cyrix 5x86 and 6x86 are 0 and 7,respectively
  123 # (no clock delay).
  124 #
  125 # CPU_L2_LATENCY specifies the L2 cache latency value.  This option is used
  126 # only when CPU_PPRO2CELERON is defined and Mendocino Celeron is detected.
  127 # The default value is 5.
  128 #
  129 # CPU_LOOP_EN prevents flushing the prefetch buffer if the destination
  130 # of a jump is already present in the prefetch buffer on Cyrix 5x86(NOTE
  131 # 1).
  132 #
  133 # CPU_PPRO2CELERON enables L2 cache of Mendocino Celeron CPUs.  This option
  134 # is useful when you use Socket 8 to Socket 370 converter, because most Pentium
  135 # Pro BIOSs do not enable L2 cache of Mendocino Celeron CPUs.
  136 #
  137 # CPU_RSTK_EN enables return stack on Cyrix 5x86 (NOTE 1).
  138 #
  139 # CPU_SOEKRIS enables support www.soekris.com hardware.
  140 #
  141 # CPU_SUSP_HLT enables suspend on HALT.  If this option is set, CPU
  142 # enters suspend mode following execution of HALT instruction.
  143 #
  144 # CPU_UPGRADE_HW_CACHE eliminates unneeded cache flush instruction(s).
  145 #
  146 # CPU_WT_ALLOC enables write allocation on Cyrix 6x86/6x86MX and AMD
  147 # K5/K6/K6-2 CPUs.
  148 #
  149 # CYRIX_CACHE_WORKS enables CPU cache on Cyrix 486 CPUs with cache
  150 # flush at hold state.
  151 #
  152 # CYRIX_CACHE_REALLY_WORKS enables (1) CPU cache on Cyrix 486 CPUs
  153 # without cache flush at hold state, and (2) write-back CPU cache on
  154 # Cyrix 6x86 whose revision < 2.7 (NOTE 2).
  155 #
  156 # NO_F00F_HACK disables the hack that prevents Pentiums (and ONLY
  157 # Pentiums) from locking up when a LOCK CMPXCHG8B instruction is
  158 # executed.  This option is only needed if I586_CPU is also defined,
  159 # and should be included for any non-Pentium CPU that defines it.
  160 #
  161 # NO_MEMORY_HOLE is an optimisation for systems with AMD K6 processors
  162 # which indicates that the 15-16MB range is *definitely* not being
  163 # occupied by an ISA memory hole.
  164 #
  165 # NOTE 1: The options, CPU_BTB_EN, CPU_LOOP_EN, CPU_IORT,
  166 # CPU_LOOP_EN and CPU_RSTK_EN should not be used because of CPU bugs.
  167 # These options may crash your system.
  168 #
  169 # NOTE 2: If CYRIX_CACHE_REALLY_WORKS is not set, CPU cache is enabled
  170 # in write-through mode when revision < 2.7.  If revision of Cyrix
  171 # 6x86 >= 2.7, CPU cache is always enabled in write-back mode.
  172 #
  173 # NOTE 3: This option may cause failures for software that requires
  174 # locked cycles in order to operate correctly.
  175 #
  176 options         CPU_ATHLON_SSE_HACK
  177 options         CPU_BLUELIGHTNING_3X
  178 options         CPU_BLUELIGHTNING_FPU_OP_CACHE
  179 options         CPU_BTB_EN
  180 options         CPU_DIRECT_MAPPED_CACHE
  181 options         CPU_DISABLE_5X86_LSSER
  182 options         CPU_DISABLE_CMPXCHG
  183 #options        CPU_DISABLE_SSE
  184 options         CPU_ELAN
  185 options         CPU_ELAN_PPS
  186 options         CPU_ELAN_XTAL=32768000
  187 options         CPU_ENABLE_LONGRUN
  188 options         CPU_FASTER_5X86_FPU
  189 options         CPU_GEODE
  190 options         CPU_I486_ON_386
  191 options         CPU_IORT
  192 options         CPU_L2_LATENCY=5
  193 options         CPU_LOOP_EN
  194 options         CPU_PPRO2CELERON
  195 options         CPU_RSTK_EN
  196 options         CPU_SOEKRIS
  197 options         CPU_SUSP_HLT
  198 options         CPU_UPGRADE_HW_CACHE
  199 options         CPU_WT_ALLOC
  200 options         CYRIX_CACHE_WORKS
  201 options         CYRIX_CACHE_REALLY_WORKS
  202 #options        NO_F00F_HACK
  203 
  204 # Debug options
  205 options         NPX_DEBUG       # enable npx debugging
  206 
  207 #
  208 # PERFMON causes the driver for Pentium/Pentium Pro performance counters
  209 # to be compiled.  See perfmon(4) for more information.
  210 #
  211 options         PERFMON
  212 
  213 #
  214 # XBOX causes the kernel to be bootable on the Microsoft XBox console system.
  215 # The resulting kernel will auto-detect whether it is being booted on a XBox,
  216 # so kernels compiled with this option will also work on an ordinary PC.
  217 # This option require I686_CPU.
  218 #
  219 # xboxfb includes support for the XBox frame buffer device. It is fully USB-
  220 # keyboard aware, and will only be used if an xbox is detected. This option
  221 # (obviously) requires XBOX support in your kernel.
  222 #
  223 # NOTE: xboxfb currently conflicts with syscons(4); if you have an XBOX and
  224 # include both in your kernel; you will not get any video output. Ordinary
  225 # PC's do not suffer from this.
  226 #
  227 options         XBOX
  228 device          xboxfb
  229 
  230 
  231 #####################################################################
  232 # NETWORKING OPTIONS
  233 
  234 #
  235 # DEVICE_POLLING adds support for mixed interrupt-polling handling
  236 # of network device drivers, which has significant benefits in terms
  237 # of robustness to overloads and responsivity, as well as permitting
  238 # accurate scheduling of the CPU time between kernel network processing
  239 # and other activities.  The drawback is a moderate (up to 1/HZ seconds)
  240 # potential increase in response times.
  241 # It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
  242 # to achieve smoother behaviour.
  243 # Additionally, you can enable/disable polling at runtime with help of
  244 # the ifconfig(8) utility, and select the CPU fraction reserved to
  245 # userland with the sysctl variable kern.polling.user_frac
  246 # (default 50, range 0..100).
  247 #
  248 # Not all device drivers support this mode of operation at the time of
  249 # this writing.  See polling(4) for more details.
  250 
  251 options         DEVICE_POLLING
  252 
  253 # BPF_JITTER adds support for BPF just-in-time compiler.
  254 
  255 options         BPF_JITTER
  256 
  257 
  258 #####################################################################
  259 # CLOCK OPTIONS
  260 
  261 # Provide read/write access to the memory in the clock chip.
  262 device          nvram           # Access to rtc cmos via /dev/nvram
  263 
  264 
  265 #####################################################################
  266 # MISCELLANEOUS DEVICES AND OPTIONS
  267 
  268 device          speaker         #Play IBM BASIC-style noises out your speaker
  269 hint.speaker.0.at="isa"
  270 hint.speaker.0.port="0x61"
  271 device          gzip            #Exec gzipped a.out's.  REQUIRES COMPAT_AOUT!
  272 device          apm_saver       # Requires APM
  273 
  274 
  275 #####################################################################
  276 # HARDWARE BUS CONFIGURATION
  277 
  278 #
  279 # ISA bus
  280 #
  281 device          isa             # Required by npx(4)
  282 
  283 #
  284 # Options for `isa':
  285 #
  286 # AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
  287 # interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
  288 # This option breaks suspend/resume on some portables.
  289 #
  290 # AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A
  291 # interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
  292 # Automatic EOI is documented not to work for for the slave with the
  293 # original i8259A, but it works for some clones and some integrated
  294 # versions.
  295 #
  296 # MAXMEM specifies the amount of RAM on the machine; if this is not
  297 # specified, FreeBSD will first read the amount of memory from the CMOS
  298 # RAM, so the amount of memory will initially be limited to 64MB or 16MB
  299 # depending on the BIOS.  If the BIOS reports 64MB, a memory probe will
  300 # then attempt to detect the installed amount of RAM.  If this probe
  301 # fails to detect >64MB RAM you will have to use the MAXMEM option.
  302 # The amount is in kilobytes, so for a machine with 128MB of RAM, it would
  303 # be 131072 (128 * 1024).
  304 #
  305 # BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
  306 # reset the CPU for reboot.  This is needed on some systems with broken
  307 # keyboard controllers.
  308 
  309 options         AUTO_EOI_1
  310 #options        AUTO_EOI_2
  311 
  312 options         MAXMEM=(128*1024)
  313 #options        BROKEN_KEYBOARD_RESET
  314 
  315 #
  316 # EISA bus
  317 #
  318 # The EISA bus device is `eisa'.  It provides auto-detection and
  319 # configuration support for all devices on the EISA bus.
  320 
  321 device          eisa
  322 
  323 # By default, only 10 EISA slots are probed, since the slot numbers
  324 # above clash with the configuration address space of the PCI subsystem,
  325 # and the EISA probe is not very smart about this.  This is sufficient
  326 # for most machines, but in particular the HP NetServer LC series comes
  327 # with an onboard AIC7770 dual-channel SCSI controller on EISA slot #11,
  328 # thus you need to bump this figure to 12 for them.
  329 options         EISA_SLOTS=12
  330 
  331 #
  332 # MCA bus:
  333 #
  334 # The MCA bus device is `mca'.  It provides auto-detection and
  335 # configuration support for all devices on the MCA bus.
  336 # No hints are required for MCA.
  337 
  338 device          mca
  339 
  340 #
  341 # PCI bus & PCI options:
  342 #
  343 device          pci
  344 
  345 #
  346 # AGP GART support
  347 device          agp
  348 
  349 # AGP debugging.
  350 options         AGP_DEBUG
  351 
  352 
  353 #####################################################################
  354 # HARDWARE DEVICE CONFIGURATION
  355 
  356 # To include support for VGA VESA video modes
  357 options         VESA
  358 
  359 # Turn on extra debugging checks and output for VESA support.
  360 options         VESA_DEBUG
  361 
  362 device          dpms            # DPMS suspend & resume via VESA BIOS
  363 
  364 # x86 real mode BIOS emulator, required by atkbdc/dpms/vesa
  365 options         X86BIOS
  366 
  367 #
  368 # The Numeric Processing eXtension driver.  This is non-optional.
  369 device          npx
  370 hint.npx.0.flags="0x0"
  371 hint.npx.0.irq="13"
  372 
  373 #
  374 # `flags' for npx0:
  375 #       0x01    don't use the npx registers to optimize bcopy.
  376 #       0x02    don't use the npx registers to optimize bzero.
  377 #       0x04    don't use the npx registers to optimize copyin or copyout.
  378 # The npx registers are normally used to optimize copying and zeroing when
  379 # all of the following conditions are satisfied:
  380 #       I586_CPU is an option
  381 #       the cpu is an i586 (perhaps not a Pentium)
  382 #       the probe for npx0 succeeds
  383 #       INT 16 exception handling works.
  384 # Then copying and zeroing using the npx registers is normally 30-100% faster.
  385 # The flags can be used to control cases where it doesn't work or is slower.
  386 # Setting them at boot time using hints works right (the optimizations
  387 # are not used until later in the bootstrap when npx0 is attached).
  388 # Flag 0x08 automatically disables the i586 optimized routines.
  389 #
  390 
  391 #
  392 # Optional devices:
  393 #
  394 
  395 # PS/2 mouse
  396 device          psm
  397 hint.psm.0.at="atkbdc"
  398 hint.psm.0.irq="12"
  399 
  400 # Options for psm:
  401 options         PSM_HOOKRESUME          #hook the system resume event, useful
  402                                         #for some laptops
  403 options         PSM_RESETAFTERSUSPEND   #reset the device at the resume event
  404 
  405 # The keyboard controller; it controls the keyboard and the PS/2 mouse.
  406 device          atkbdc
  407 hint.atkbdc.0.at="isa"
  408 hint.atkbdc.0.port="0x060"
  409 
  410 # The AT keyboard
  411 device          atkbd
  412 hint.atkbd.0.at="atkbdc"
  413 hint.atkbd.0.irq="1"
  414 
  415 # Options for atkbd:
  416 options         ATKBD_DFLT_KEYMAP       # specify the built-in keymap
  417 makeoptions     ATKBD_DFLT_KEYMAP=jp.106
  418 
  419 # `flags' for atkbd:
  420 #       0x01    Force detection of keyboard, else we always assume a keyboard
  421 #       0x02    Don't reset keyboard, useful for some newer ThinkPads
  422 #       0x03    Force detection and avoid reset, might help with certain
  423 #               dockingstations
  424 #       0x04    Old-style (XT) keyboard support, useful for older ThinkPads
  425 
  426 # Video card driver for VGA adapters.
  427 device          vga
  428 hint.vga.0.at="isa"
  429 
  430 # Options for vga:
  431 # Try the following option if the mouse pointer is not drawn correctly
  432 # or font does not seem to be loaded properly.  May cause flicker on
  433 # some systems.
  434 options         VGA_ALT_SEQACCESS
  435 
  436 # If you can dispense with some vga driver features, you may want to
  437 # use the following options to save some memory.
  438 #options        VGA_NO_FONT_LOADING     # don't save/load font
  439 #options        VGA_NO_MODE_CHANGE      # don't change video modes
  440 
  441 # Older video cards may require this option for proper operation.
  442 options         VGA_SLOW_IOACCESS       # do byte-wide i/o's to TS and GDC regs
  443 
  444 # The following option probably won't work with the LCD displays.
  445 options         VGA_WIDTH90             # support 90 column modes
  446 
  447 # Debugging.
  448 options         VGA_DEBUG
  449 
  450 # Linear framebuffer driver for S3 VESA 1.2 cards. Works on top of VESA.
  451 device          s3pci
  452 
  453 # 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support.  This will create
  454 # the /dev/3dfx0 device to work with glide implementations.  This should get
  455 # linked to /dev/3dfx and /dev/voodoo.  Note that this is not the same as
  456 # the tdfx DRI module from XFree86 and is completely unrelated.
  457 #
  458 # To enable Linuxulator support, one must also include COMPAT_LINUX in the
  459 # config as well.  The other option is to load both as modules.
  460 
  461 device          tdfx                    # Enable 3Dfx Voodoo support
  462 device          tdfx_linux              # Enable Linuxulator support
  463 
  464 #
  465 # ACPI support using the Intel ACPI Component Architecture reference
  466 # implementation.
  467 #
  468 # ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer
  469 # kernel environment variables to select initial debugging levels for the
  470 # Intel ACPICA code.  (Note that the Intel code must also have USE_DEBUGGER
  471 # defined when it is built).
  472 
  473 device          acpi
  474 options         ACPI_DEBUG
  475 
  476 # ACPI WMI Mapping driver
  477 device          acpi_wmi
  478 
  479 # ACPI Asus Desktop Extras. (voltage, temp, fan)
  480 device          acpi_aiboost
  481 
  482 # ACPI Asus Extras (LCD backlight/brightness, video output, etc.)
  483 device          acpi_asus
  484 
  485 # ACPI Fujitsu Extras (Buttons)
  486 device          acpi_fujitsu
  487 
  488 # ACPI extras driver for HP laptops
  489 device          acpi_hp
  490 
  491 # ACPI extras driver for IBM laptops
  492 device          acpi_ibm
  493 
  494 # ACPI Panasonic Extras (LCD backlight/brightness, video output, etc.)
  495 device          acpi_panasonic
  496 
  497 # ACPI Sony extra (LCD brightness)
  498 device          acpi_sony
  499 
  500 # ACPI Toshiba Extras (LCD backlight/brightness, video output, etc.)
  501 device          acpi_toshiba
  502 
  503 # ACPI Video Extensions (LCD backlight/brightness, video output, etc.)
  504 device          acpi_video
  505 
  506 # ACPI Docking Station
  507 device          acpi_dock
  508 
  509 # The cpufreq(4) driver provides support for non-ACPI CPU frequency control
  510 device          cpufreq
  511 
  512 # Direct Rendering modules for 3D acceleration.
  513 device          drm             # DRM core module required by DRM drivers
  514 device          i915drm         # Intel i830 through i915
  515 device          mach64drm       # ATI Rage Pro, Rage Mobility P/M, Rage XL
  516 device          mgadrm          # AGP Matrox G200, G400, G450, G550
  517 device          r128drm         # ATI Rage 128
  518 device          radeondrm       # ATI Radeon
  519 device          savagedrm       # S3 Savage3D, Savage4
  520 device          sisdrm          # SiS 300/305, 540, 630
  521 device          tdfxdrm         # 3dfx Voodoo 3/4/5 and Banshee
  522 options         DRM_DEBUG       # Include debug printfs (slow)
  523 
  524 #
  525 # mse: Logitech and ATI InPort bus mouse ports
  526 
  527 device          mse
  528 hint.mse.0.at="isa"
  529 hint.mse.0.port="0x23c"
  530 hint.mse.0.irq="5"
  531 
  532 #
  533 # Network interfaces:
  534 #
  535 
  536 # ath:  Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
  537 # ce:   Cronyx Tau-PCI/32 sync single/dual port G.703/E1 serial adaptor
  538 #       with 32 HDLC subchannels (requires sppp (default), or NETGRAPH if
  539 #       NETGRAPH_CRONYX is configured)
  540 # cp:   Cronyx Tau-PCI sync single/dual/four port
  541 #       V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1
  542 #       serial adaptor (requires sppp (default), or NETGRAPH if
  543 #       NETGRAPH_CRONYX is configured)
  544 # cs:   IBM Etherjet and other Crystal Semi CS89x0-based adapters
  545 # ctau: Cronyx Tau sync dual port V.35/RS-232/RS-530/RS-449/X.21/G.703/E1
  546 #       serial adaptor (requires sppp (default), or NETGRAPH if
  547 #       NETGRAPH_CRONYX is configured)
  548 # ed:   Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
  549 #       HP PC Lan+, various PC Card devices
  550 #       (requires miibus)
  551 # ie:   AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210;
  552 #       Intel EtherExpress
  553 # ipw:  Intel PRO/Wireless 2100 IEEE 802.11 adapter
  554 # iwi:  Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11 adapters
  555 # iwn:  Intel Wireless WiFi Link 4965AGN 802.11 network adapters
  556 # nfe:  nVidia nForce MCP on-board Ethernet Networking (BSD open source)
  557 # nve:  nVidia nForce MCP on-board Ethernet Networking
  558 # ral:  Ralink Technology IEEE 802.11 wireless adapter
  559 # sbni: Granch SBNI12-xx ISA and PCI adapters
  560 # wl:   Lucent Wavelan (ISA card only).
  561 # wpi:  Intel 3945ABG Wireless LAN controller
  562 
  563 # Order for ISA/EISA devices is important here
  564 
  565 device          ath             # Atheros pci/cardbus NIC's
  566 device          ath_hal         # pci/cardbus chip support
  567 #device         ath_ar5210      # AR5210 chips
  568 #device         ath_ar5211      # AR5211 chips
  569 #device         ath_ar5212      # AR5212 chips
  570 #device         ath_rf2413
  571 #device         ath_rf2417
  572 #device         ath_rf2425
  573 #device         ath_rf5111
  574 #device         ath_rf5112
  575 #device         ath_rf5413
  576 #device         ath_ar5416      # AR5416 chips
  577 options         AH_SUPPORT_AR5416       # enable AR5416 tx/rx descriptors
  578 device          ath_rate_sample # SampleRate tx rate control for ath
  579 device          ce
  580 device          cp
  581 device          cs
  582 hint.cs.0.at="isa"
  583 hint.cs.0.port="0x300"
  584 device          ctau
  585 hint.ctau.0.at="isa"
  586 hint.ctau.0.port="0x240"
  587 hint.ctau.0.irq="15"
  588 hint.ctau.0.drq="7"
  589 #options        NETGRAPH_CRONYX         # Enable NETGRAPH support for Cronyx adapter(s)
  590 device          ed
  591 options         ED_3C503
  592 options         ED_HPP
  593 options         ED_SIC
  594 hint.ed.0.at="isa"
  595 hint.ed.0.port="0x280"
  596 hint.ed.0.irq="5"
  597 hint.ed.0.maddr="0xd8000"
  598 device          ie                      # Hints only required for Starlan
  599 hint.ie.2.at="isa"
  600 hint.ie.2.port="0x300"
  601 hint.ie.2.irq="5"
  602 hint.ie.2.maddr="0xd0000"
  603 device          iwi
  604 device          iwn
  605 device          ipw
  606 # Hint for the i386-only ISA front-end of le(4).
  607 hint.le.0.at="isa"
  608 hint.le.0.port="0x280"
  609 hint.le.0.irq="10"
  610 hint.le.0.drq="0"
  611 device          nfe             # nVidia nForce MCP on-board Ethernet Networking
  612 device          nve             # nVidia nForce MCP on-board Ethernet Networking
  613 device          ral
  614 device          sbni
  615 hint.sbni.0.at="isa"
  616 hint.sbni.0.port="0x210"
  617 hint.sbni.0.irq="0xefdead"
  618 hint.sbni.0.flags="0"
  619 device          wl
  620 hint.wl.0.at="isa"
  621 hint.wl.0.port="0x300"
  622 options         WLCACHE         # enables the signal-strength cache
  623 options         WLDEBUG         # enables verbose debugging output
  624 device          wpi
  625 
  626 #
  627 # ATA raid adapters
  628 #
  629 device          pst
  630 
  631 #
  632 # Areca 11xx and 12xx series of SATA II RAID controllers.
  633 # CAM is required.
  634 #
  635 device          arcmsr          # Areca SATA II RAID
  636 
  637 #
  638 # 3ware 9000 series PATA/SATA RAID controller driver and options.
  639 # The driver is implemented as a SIM, and so, needs the CAM infrastructure.
  640 #
  641 options         TWA_DEBUG               # 0-10; 10 prints the most messages.
  642 options         TWA_FLASH_FIRMWARE      # firmware image bundled when defined.
  643 device          twa                     # 3ware 9000 series PATA/SATA RAID
  644 
  645 #
  646 # SCSI host adapters:
  647 #
  648 # ncv: NCR 53C500 based SCSI host adapters.
  649 # nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters.
  650 # stg: TMC 18C30, 18C50 based SCSI host adapters.
  651 
  652 device          ncv
  653 device          nsp
  654 device          stg
  655 hint.stg.0.at="isa"
  656 hint.stg.0.port="0x140"
  657 hint.stg.0.port="11"
  658 
  659 #
  660 # Adaptec FSA RAID controllers, including integrated DELL controllers,
  661 # the Dell PERC 2/QC and the HP NetRAID-4M
  662 device          aac
  663 device          aacp    # SCSI Passthrough interface (optional, CAM required)
  664 
  665 # The 'asr' driver provides support for current DPT/Adaptec SCSI RAID
  666 # controllers (SmartRAID V and VI and later).
  667 # These controllers require the CAM infrastructure.
  668 #
  669 device          asr
  670 
  671 #
  672 # Highpoint RocketRAID 182x.
  673 device          hptmv
  674 
  675 #
  676 # Highpoint RocketRAID.  Supports RR172x, RR222x, RR2240, RR232x, RR2340,
  677 # RR2210, RR174x, RR2522, RR231x, RR230x.
  678 device          hptrr
  679 
  680 #
  681 # Highpoint RocketRaid 3xxx series SATA RAID
  682 device          hptiop
  683 
  684 #
  685 # IBM (now Adaptec) ServeRAID controllers
  686 device          ips
  687 
  688 #
  689 # SafeNet crypto driver: can be moved to the MI NOTES as soon as
  690 # it's tested on a big-endian machine
  691 #
  692 device          safe            # SafeNet 1141
  693 options         SAFE_DEBUG      # enable debugging support: hw.safe.debug
  694 options         SAFE_RNDTEST    # enable rndtest support
  695 
  696 #
  697 # glxsb is a driver for the Security Block in AMD Geode LX processors.
  698 # Requires 'device crypto'.
  699 #
  700 device          glxsb           # AMD Geode LX Security Block
  701 
  702 #####################################################################
  703 
  704 #
  705 # Miscellaneous hardware:
  706 #
  707 # apm: Laptop Advanced Power Management (experimental)
  708 # ipmi: Intelligent Platform Management Interface
  709 # smapi: System Management Application Program Interface driver
  710 # smbios: DMI/SMBIOS entry point
  711 # vpd: Vital Product Data kernel interface
  712 # pmtimer: Adjust system timer at wakeup time
  713 # pbio: Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724)
  714 # spic: Sony Programmable I/O controller (VAIO notebooks)
  715 # asmc: Apple System Management Controller
  716 # si: Specialix International SI/XIO or SX intelligent serial card driver
  717 
  718 # Notes on APM
  719 #  The flags takes the following meaning for apm0:
  720 #    0x0020  Statclock is broken.
  721 
  722 # Notes on the Specialix SI/XIO driver:
  723 #  The host card is memory, not IO mapped.
  724 #  The Rev 1 host cards use a 64K chunk, on a 32K boundary.
  725 #  The Rev 2 host cards use a 32K chunk, on a 32K boundary.
  726 #  The cards can use an IRQ of 11, 12 or 15.
  727 
  728 # Notes on the Sony Programmable I/O controller
  729 #  This is a temporary driver that should someday be replaced by something
  730 #  that hooks into the ACPI layer.  The device is hooked to the PIIX4's
  731 #  General Device 10 decoder, which means you have to fiddle with PCI
  732 #  registers to map it in, even though it is otherwise treated here as
  733 #  an ISA device.  At the moment, the driver polls, although the device
  734 #  is capable of generating interrupts.  It largely undocumented.
  735 #  The port location in the hint is where you WANT the device to be
  736 #  mapped.  0x10a0 seems to be traditional.  At the moment the jogdial
  737 #  is the only thing truly supported, but apparently a fair percentage
  738 #  of the Vaio extra features are controlled by this device.
  739 
  740 device          apm
  741 hint.apm.0.flags="0x20"
  742 device          ipmi
  743 device          smapi
  744 device          smbios
  745 device          vpd
  746 device          pmtimer
  747 device          pbio
  748 hint.pbio.0.at="isa"
  749 hint.pbio.0.port="0x360"
  750 device          spic
  751 hint.spic.0.at="isa"
  752 hint.spic.0.port="0x10a0"
  753 device          asmc
  754 #device         si
  755 
  756 #
  757 # Laptop/Notebook options:
  758 #
  759 # See also:
  760 #  apm under `Miscellaneous hardware'
  761 # above.
  762 
  763 # For older notebooks that signal a powerfail condition (external
  764 # power supply dropped, or battery state low) by issuing an NMI:
  765 
  766 options         POWERFAIL_NMI   # make it beep instead of panicing
  767 
  768 #
  769 # I2C Bus
  770 #
  771 # Philips i2c bus support is provided by the `iicbus' device.
  772 #
  773 # Supported interfaces:
  774 # pcf   Philips PCF8584 ISA-bus controller
  775 #
  776 device          pcf
  777 hint.pcf.0.at="isa"
  778 hint.pcf.0.port="0x320"
  779 hint.pcf.0.irq="5"
  780 
  781 #
  782 # Hardware watchdog timers:
  783 #
  784 # ichwd: Intel ICH watchdog timer
  785 # amdsbwd: AMD SB7xx watchdog timer
  786 #
  787 device          ichwd
  788 device          amdsbwd
  789 
  790 #
  791 # Temperature sensors:
  792 #
  793 # coretemp: on-die sensor on Intel Core and newer CPUs
  794 # amdtemp: on-die sensor on AMD K8/K10/K11 CPUs
  795 #
  796 device          coretemp
  797 device          amdtemp
  798 
  799 #
  800 # CPU control pseudo-device. Provides access to MSRs, CPUID info and
  801 # microcode update feature.
  802 #
  803 device          cpuctl
  804 
  805 #
  806 # System Management Bus (SMB)
  807 #
  808 options         ENABLE_ALART            # Control alarm on Intel intpm driver
  809 
  810 #
  811 # Set the number of PV entries per process.  Increasing this can
  812 # stop panics related to heavy use of shared memory.  However, that can
  813 # (combined with large amounts of physical memory) cause panics at
  814 # boot time due the kernel running out of VM space.
  815 #
  816 # If you're tweaking this, you might also want to increase the sysctls
  817 # "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target".
  818 #
  819 # The value below is the one more than the default.
  820 #
  821 options         PMAP_SHPGPERPROC=201
  822 
  823 #
  824 # Change the size of the kernel virtual address space.  Due to
  825 # constraints in loader(8) on i386, this must be a multiple of 4.
  826 # 256 = 1 GB of kernel address space.  Increasing this also causes
  827 # a reduction of the address space in user processes.  512 splits
  828 # the 4GB cpu address space in half (2GB user, 2GB kernel).  For PAE
  829 # kernels, the value will need to be double non-PAE.  A value of 1024
  830 # for PAE kernels is necessary to split the address space in half.
  831 # This will likely need to be increased to handle memory sizes >4GB.
  832 # PAE kernels default to a value of 512.
  833 #
  834 options         KVA_PAGES=260
  835 
  836 #
  837 # Number of initial kernel page table pages used for early bootstrap.
  838 # This number should include enough pages to map the kernel, any
  839 # modules or other data loaded with the kernel by the loader, and data
  840 # structures allocated before the VM system is initialized such as the
  841 # vm_page_t array.  Each page table page maps 4MB (2MB with PAE).
  842 #
  843 options         NKPT=31
  844 
  845 
  846 #####################################################################
  847 # ABI Emulation
  848 
  849 # Enable iBCS2 runtime support for SCO and ISC binaries
  850 options         IBCS2
  851 
  852 # Emulate spx device for client side of SVR3 local X interface
  853 options         SPX_HACK
  854 
  855 # Enable Linux ABI emulation
  856 options         COMPAT_LINUX
  857 
  858 # Enable i386 a.out binary support
  859 options         COMPAT_AOUT
  860 
  861 # Enable the linux-like proc filesystem support (requires COMPAT_LINUX
  862 # and PSEUDOFS)
  863 options         LINPROCFS
  864 
  865 #Enable the linux-like sys filesystem support (requires COMPAT_LINUX
  866 # and PSEUDOFS)
  867 options         LINSYSFS
  868 
  869 #
  870 # SysVR4 ABI emulation
  871 #
  872 # The svr4 ABI emulator can be statically compiled into the kernel or loaded as
  873 # a KLD module.
  874 # The STREAMS network emulation code can also be compiled statically or as a
  875 # module.  If loaded as a module, it must be loaded before the svr4 module
  876 # (the /usr/sbin/svr4 script does this for you).  If compiling statically,
  877 # the `streams' device must be configured into any kernel which also
  878 # specifies COMPAT_SVR4.  It is possible to have a statically-configured
  879 # STREAMS device and a dynamically loadable svr4 emulator;  the /usr/sbin/svr4
  880 # script understands that it doesn't need to load the `streams' module under
  881 # those circumstances.
  882 # Caveat:  At this time, `options KTRACE' is required for the svr4 emulator
  883 # (whether static or dynamic).
  884 #
  885 options         COMPAT_SVR4     # build emulator statically
  886 options         DEBUG_SVR4      # enable verbose debugging
  887 device          streams         # STREAMS network driver (required for svr4).
  888 
  889 # Enable NDIS binary driver support
  890 options         NDISAPI
  891 device          ndis
  892 
  893 # Linux-specific pseudo devices support
  894 device          lindev
  895 
  896 
  897 #####################################################################
  898 # VM OPTIONS
  899 
  900 # Disable the 4 MByte page PSE CPU feature.  The PSE feature allows the
  901 # kernel to use 4 MByte pages to map the kernel instead of 4k pages.
  902 # This saves on the amount of memory needed for page tables needed to
  903 # map the kernel.  You should only disable this feature as a temporary
  904 # workaround if you are having problems with it enabled.
  905 #
  906 #options        DISABLE_PSE
  907 
  908 # Disable the global pages PGE CPU feature.  The PGE feature allows pages
  909 # to be marked with the PG_G bit.  TLB entries for these pages are not
  910 # flushed from the cache when %cr3 is reloaded.  This can make context
  911 # switches less expensive.  You should only disable this feature as a
  912 # temporary workaround if you are having problems with it enabled.
  913 #
  914 #options        DISABLE_PG_G
  915 
  916 # KSTACK_PAGES is the number of memory pages to assign to the kernel
  917 # stack of each thread.
  918 
  919 options         KSTACK_PAGES=3
  920 
  921 #####################################################################
  922 
  923 # More undocumented options for linting.
  924 # Note that documenting these are not considered an affront.
  925 
  926 options         FB_INSTALL_CDEV         # install a CDEV entry in /dev
  927 
  928 options         I586_PMC_GUPROF=0x70000
  929 options         KBDIO_DEBUG=2
  930 options         KBD_MAXRETRY=4
  931 options         KBD_MAXWAIT=6
  932 options         KBD_RESETDELAY=201
  933 
  934 options         PSM_DEBUG=1
  935 
  936 options         TIMER_FREQ=((14318182+6)/12)
  937 
  938 options         VM_KMEM_SIZE
  939 options         VM_KMEM_SIZE_MAX
  940 options         VM_KMEM_SIZE_SCALE
  941 
  942 
  943 # asr old ioctls support, needed by raidutils
  944 
  945 options         ASR_COMPAT

Cache object: 0b5f32f49c5c3e8baec067fd91feb8d3


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.