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# We want LINT to cover profiling as well. 12profile 2 13 14# 15# Enable the kernel DTrace hooks which are required to load the DTrace 16# kernel modules. 17# 18options KDTRACE_HOOKS 19 20 21##################################################################### 22# SMP OPTIONS: 23# 24# Notes: 25# 26# IPI_PREEMPTION instructs the kernel to preempt threads running on other 27# CPUS if needed. Relies on the PREEMPTION option 28 29# Optional: 30options IPI_PREEMPTION 31device atpic # Optional legacy pic support 32device mptable # Optional MPSPEC mptable support 33 34# 35# Watchdog routines. 36# 37options MP_WATCHDOG 38 39# Debugging options. 40# 41options COUNT_XINVLTLB_HITS # Counters for TLB events 42options COUNT_IPIS # Per-CPU IPI interrupt counters 43 44 45 46##################################################################### 47# CPU OPTIONS 48 49# 50# You must specify at least one CPU (the one you intend to run on); 51# deleting the specification for CPUs you don't need to use may make 52# parts of the system run faster. 53# 54cpu HAMMER # aka K8, aka Opteron & Athlon64 55 56# 57# Options for CPU features. 58# 59 60# 61# PERFMON causes the driver for Pentium/Pentium Pro performance counters 62# to be compiled. See perfmon(4) for more information. 63# 64#XXX#options PERFMON 65 66 67##################################################################### 68# NETWORKING OPTIONS 69 70# 71# DEVICE_POLLING adds support for mixed interrupt-polling handling 72# of network device drivers, which has significant benefits in terms 73# of robustness to overloads and responsivity, as well as permitting 74# accurate scheduling of the CPU time between kernel network processing 75# and other activities. The drawback is a moderate (up to 1/HZ seconds) 76# potential increase in response times. 77# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING 78# to achieve smoother behaviour. 79# Additionally, you can enable/disable polling at runtime with help of 80# the ifconfig(8) utility, and select the CPU fraction reserved to 81# userland with the sysctl variable kern.polling.user_frac 82# (default 50, range 0..100). 83# 84# Not all device drivers support this mode of operation at the time of 85# this writing. See polling(4) for more details. 86 87options DEVICE_POLLING 88 89# BPF_JITTER adds support for BPF just-in-time compiler. 90 91options BPF_JITTER 92 93 94##################################################################### 95# CLOCK OPTIONS 96 97# Provide read/write access to the memory in the clock chip. 98device nvram # Access to rtc cmos via /dev/nvram 99 100 101##################################################################### 102# MISCELLANEOUS DEVICES AND OPTIONS 103 104device speaker #Play IBM BASIC-style noises out your speaker 105hint.speaker.0.at="isa" 106hint.speaker.0.port="0x61" 107device gzip #Exec gzipped a.out's. REQUIRES COMPAT_AOUT! 108 109 110##################################################################### 111# HARDWARE BUS CONFIGURATION 112 113# 114# ISA bus 115# 116device isa 117 118# 119# Options for `isa': 120# 121# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A 122# interrupt controller. This saves about 0.7-1.25 usec for each interrupt. 123# This option breaks suspend/resume on some portables. 124# 125# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A 126# interrupt controller. This saves about 0.7-1.25 usec for each interrupt. 127# Automatic EOI is documented not to work for for the slave with the 128# original i8259A, but it works for some clones and some integrated 129# versions. 130# 131# MAXMEM specifies the amount of RAM on the machine; if this is not 132# specified, FreeBSD will first read the amount of memory from the CMOS 133# RAM, so the amount of memory will initially be limited to 64MB or 16MB 134# depending on the BIOS. If the BIOS reports 64MB, a memory probe will 135# then attempt to detect the installed amount of RAM. If this probe 136# fails to detect >64MB RAM you will have to use the MAXMEM option. 137# The amount is in kilobytes, so for a machine with 128MB of RAM, it would 138# be 131072 (128 * 1024). 139# 140# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to 141# reset the CPU for reboot. This is needed on some systems with broken 142# keyboard controllers. 143 144options AUTO_EOI_1 145#options AUTO_EOI_2 146 147options MAXMEM=(128*1024) 148#options BROKEN_KEYBOARD_RESET 149 150# 151# PCI bus & PCI options: 152# 153device pci 154 155# 156# AGP GART support 157device agp 158 159# 160# AGP debugging. 161# 162options AGP_DEBUG 163 164 165##################################################################### 166# HARDWARE DEVICE CONFIGURATION 167 168# To include support for VGA VESA video modes 169options VESA 170 171# Turn on extra debugging checks and output for VESA support. 172options VESA_DEBUG 173 174device dpms # DPMS suspend & resume via VESA BIOS 175 176# x86 real mode BIOS emulator, required by atkbdc/dpms/vesa 177options X86BIOS 178 179# 180# Optional devices: 181# 182 183# PS/2 mouse 184device psm 185hint.psm.0.at="atkbdc" 186hint.psm.0.irq="12" 187 188# Options for psm: 189options PSM_HOOKRESUME #hook the system resume event, useful 190 #for some laptops 191options PSM_RESETAFTERSUSPEND #reset the device at the resume event 192 193# The keyboard controller; it controls the keyboard and the PS/2 mouse. 194device atkbdc 195hint.atkbdc.0.at="isa" 196hint.atkbdc.0.port="0x060" 197 198# The AT keyboard 199device atkbd 200hint.atkbd.0.at="atkbdc" 201hint.atkbd.0.irq="1" 202 203# Options for atkbd: 204options ATKBD_DFLT_KEYMAP # specify the built-in keymap 205makeoptions ATKBD_DFLT_KEYMAP=jp.106 206 207# `flags' for atkbd: 208# 0x01 Force detection of keyboard, else we always assume a keyboard 209# 0x02 Don't reset keyboard, useful for some newer ThinkPads 210# 0x03 Force detection and avoid reset, might help with certain 211# dockingstations 212# 0x04 Old-style (XT) keyboard support, useful for older ThinkPads 213 214# Video card driver for VGA adapters. 215device vga 216hint.vga.0.at="isa" 217 218# Options for vga: 219# Try the following option if the mouse pointer is not drawn correctly 220# or font does not seem to be loaded properly. May cause flicker on 221# some systems. 222options VGA_ALT_SEQACCESS 223 224# If you can dispense with some vga driver features, you may want to 225# use the following options to save some memory. 226#options VGA_NO_FONT_LOADING # don't save/load font 227#options VGA_NO_MODE_CHANGE # don't change video modes 228 229# Older video cards may require this option for proper operation. 230options VGA_SLOW_IOACCESS # do byte-wide i/o's to TS and GDC regs 231 232# The following option probably won't work with the LCD displays. 233options VGA_WIDTH90 # support 90 column modes 234 235# Debugging. 236options VGA_DEBUG 237 238# Linear framebuffer driver for S3 VESA 1.2 cards. Works on top of VESA. 239device s3pci 240 241# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support. This will create 242# the /dev/3dfx0 device to work with glide implementations. This should get 243# linked to /dev/3dfx and /dev/voodoo. Note that this is not the same as 244# the tdfx DRI module from XFree86 and is completely unrelated. 245# 246# To enable Linuxulator support, one must also include COMPAT_LINUX in the 247# config as well. The other option is to load both as modules. 248 249device tdfx # Enable 3Dfx Voodoo support 250#XXX#device tdfx_linux # Enable Linuxulator support 251 252# 253# ACPI support using the Intel ACPI Component Architecture reference 254# implementation. 255# 256# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer 257# kernel environment variables to select initial debugging levels for the 258# Intel ACPICA code. (Note that the Intel code must also have USE_DEBUGGER 259# defined when it is built). 260 261device acpi 262options ACPI_DEBUG 263 264# The cpufreq(4) driver provides support for non-ACPI CPU frequency control 265device cpufreq 266 267# Direct Rendering modules for 3D acceleration. 268device drm # DRM core module required by DRM drivers 269device i915drm # Intel i830 through i915 270device mach64drm # ATI Rage Pro, Rage Mobility P/M, Rage XL 271device mgadrm # AGP Matrox G200, G400, G450, G550 272device r128drm # ATI Rage 128 273device radeondrm # ATI Radeon 274device savagedrm # S3 Savage3D, Savage4 275device sisdrm # SiS 300/305, 540, 630 276device tdfxdrm # 3dfx Voodoo 3/4/5 and Banshee 277device viadrm # VIA 278options DRM_DEBUG # Include debug printfs (slow) 279 280# 281# Network interfaces: 282# 283 284# ed: Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503 285# HP PC Lan+, various PC Card devices 286# (requires miibus) 287# ipw: Intel PRO/Wireless 2100 IEEE 802.11 adapter 288# Requires the ipw firmware module 289# iwi: Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11 adapters 290# Requires the iwi firmware module 291# iwn: Intel Wireless WiFi Link 4965/1000/5000/6000 802.11 network adapters 292# Requires the iwn firmware module 293# mwl: Marvell 88W8363 IEEE 802.11 adapter 294# Requires the mwl firmware module 295# nfe: nVidia nForce MCP on-board Ethernet Networking (BSD open source) 296# nve: nVidia nForce MCP on-board Ethernet Networking 297# wpi: Intel 3945ABG Wireless LAN controller 298# Requires the wpi firmware module 299 300device ed 301options ED_3C503 302options ED_HPP 303options ED_SIC 304device ipw 305device iwi 306device iwn 307device mwl 308device nfe 309device nve 310device wpi 311 312# IEEE 802.11 adapter firmware modules 313 314# Intel PRO/Wireless 2100 firmware: 315# ipwfw: BSS/IBSS/monitor mode firmware 316# ipwbssfw: BSS mode firmware 317# ipwibssfw: IBSS mode firmware 318# ipwmonitorfw: Monitor mode firmware 319# Intel PRO/Wireless 2200BG/2225BG/2915ABG firmware: 320# iwifw: BSS/IBSS/monitor mode firmware 321# iwibssfw: BSS mode firmware 322# iwiibssfw: IBSS mode firmware 323# iwimonitorfw: Monitor mode firmware 324# Intel Wireless WiFi Link 4965/1000/5000/6000 series firmware: 325# iwnfw: Single module to support the 4965/1000/5000/5150/6000 326# iwn4965fw: Specific module for the 4965 only 327# iwn1000fw: Specific module for the 1000 only 328# iwn5000fw: Specific module for the 5000 only 329# iwn5150fw: Specific module for the 5150 only 330# iwn6000fw: Specific module for the 6000 only 331# mwlfw: Marvell 88W8363 firmware 332# wpifw: Intel 3945ABG Wireless LAN Controller firmware 333 334device iwifw 335device iwibssfw 336device iwiibssfw 337device iwimonitorfw 338device ipwfw 339device ipwbssfw 340device ipwibssfw 341device ipwmonitorfw 342device iwnfw 343device iwn4965fw 344device iwn1000fw 345device iwn5000fw 346device iwn5150fw 347device iwn6000fw 348device mwlfw 349device wpifw 350 351# 352#XXX this stores pointers in a 32bit field that is defined by the hardware 353#device pst 354 355# 356# Areca 11xx and 12xx series of SATA II RAID controllers. 357# CAM is required. 358# 359device arcmsr # Areca SATA II RAID 360 361# 362# 3ware 9000 series PATA/SATA RAID controller driver and options. 363# The driver is implemented as a SIM, and so, needs the CAM infrastructure. 364# 365options TWA_DEBUG # 0-10; 10 prints the most messages. 366options TWA_FLASH_FIRMWARE # firmware image bundled when defined. 367device twa # 3ware 9000 series PATA/SATA RAID 368 369# 370# SCSI host adapters: 371# 372# ncv: NCR 53C500 based SCSI host adapters. 373# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters. 374# stg: TMC 18C30, 18C50 based SCSI host adapters. 375 376device ncv 377device nsp 378device stg 379 380# 381# Adaptec FSA RAID controllers, including integrated DELL controllers, 382# the Dell PERC 2/QC and the HP NetRAID-4M 383device aac 384device aacp # SCSI Passthrough interface (optional, CAM required) 385 386# 387# Highpoint RocketRAID 182x. 388device hptmv 389 390# 391# Highpoint RocketRAID. Supports RR172x, RR222x, RR2240, RR232x, RR2340, 392# RR2210, RR174x, RR2522, RR231x, RR230x. 393device hptrr 394 395# 396# Highpoint RocketRaid 3xxx series SATA RAID 397device hptiop 398 399# 400# IBM (now Adaptec) ServeRAID controllers 401device ips 402 403# 404# SafeNet crypto driver: can be moved to the MI NOTES as soon as 405# it's tested on a big-endian machine 406# 407device safe # SafeNet 1141 408options SAFE_DEBUG # enable debugging support: hw.safe.debug 409options SAFE_RNDTEST # enable rndtest support 410 411##################################################################### 412 413# 414# Miscellaneous hardware: 415# 416# ipmi: Intelligent Platform Management Interface 417# pbio: Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724) 418# smbios: DMI/SMBIOS entry point 419# vpd: Vital Product Data kernel interface 420# asmc: Apple System Management Controller 421# si: Specialix International SI/XIO or SX intelligent serial card 422 423# Notes on the Specialix SI/XIO driver: 424# The host card is memory, not IO mapped. 425# The Rev 1 host cards use a 64K chunk, on a 32K boundary. 426# The Rev 2 host cards use a 32K chunk, on a 32K boundary. 427# The cards can use an IRQ of 11, 12 or 15. 428 429device ipmi 430device pbio 431hint.pbio.0.at="isa" 432hint.pbio.0.port="0x360" 433device smbios 434device vpd 435device asmc 436#device si 437 438# 439# Laptop/Notebook options: 440# 441 442 443# 444# I2C Bus 445# 446 447# 448# Hardware watchdog timers: 449# 450# ichwd: Intel ICH watchdog timer 451# amdsbwd: AMD SB7xx watchdog timer 452# 453device ichwd 454device amdsbwd 455 456# 457# Temperature sensors: 458# 459# coretemp: on-die sensor on Intel Core and newer CPUs 460# amdtemp: on-die sensor on AMD K8/K10/K11 CPUs 461# 462device coretemp 463device amdtemp 464 465# 466# CPU control pseudo-device. Provides access to MSRs, CPUID info and 467# microcode update feature. 468# 469device cpuctl 470 471# 472# System Management Bus (SMB) 473# 474options ENABLE_ALART # Control alarm on Intel intpm driver 475 476# 477# Set the number of PV entries per process. Increasing this can 478# stop panics related to heavy use of shared memory. However, that can 479# (combined with large amounts of physical memory) cause panics at 480# boot time due the kernel running out of VM space. 481# 482# If you're tweaking this, you might also want to increase the sysctls 483# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target". 484# 485# The value below is the one more than the default. 486# 487options PMAP_SHPGPERPROC=201 488 489 490##################################################################### 491# ABI Emulation 492 493#XXX keep these here for now and reactivate when support for emulating 494#XXX these 32 bit binaries is added. 495 496# Enable 32-bit runtime support for FreeBSD/i386 binaries. 497options COMPAT_FREEBSD32 498 499# Enable iBCS2 runtime support for SCO and ISC binaries 500#XXX#options IBCS2 501 502# Emulate spx device for client side of SVR3 local X interface 503#XXX#options SPX_HACK 504 505# Enable Linux ABI emulation 506#XXX#options COMPAT_LINUX 507 508# Enable 32-bit Linux ABI emulation (requires COMPAT_43 and COMPAT_FREEBSD32) 509options COMPAT_LINUX32 510 511# Enable the linux-like proc filesystem support (requires COMPAT_LINUX32 512# and PSEUDOFS) 513options LINPROCFS 514 515#Enable the linux-like sys filesystem support (requires COMPAT_LINUX32 516# and PSEUDOFS) 517options LINSYSFS 518 519# 520# SysVR4 ABI emulation 521# 522# The svr4 ABI emulator can be statically compiled into the kernel or loaded as 523# a KLD module. 524# The STREAMS network emulation code can also be compiled statically or as a 525# module. If loaded as a module, it must be loaded before the svr4 module 526# (the /usr/sbin/svr4 script does this for you). If compiling statically, 527# the `streams' device must be configured into any kernel which also 528# specifies COMPAT_SVR4. It is possible to have a statically-configured 529# STREAMS device and a dynamically loadable svr4 emulator; the /usr/sbin/svr4 530# script understands that it doesn't need to load the `streams' module under 531# those circumstances. 532# Caveat: At this time, `options KTRACE' is required for the svr4 emulator 533# (whether static or dynamic). 534# 535#XXX#options COMPAT_SVR4 # build emulator statically 536#XXX#options DEBUG_SVR4 # enable verbose debugging 537#XXX#device streams # STREAMS network driver (required for svr4). 538 539 540##################################################################### 541# VM OPTIONS 542 543# KSTACK_PAGES is the number of memory pages to assign to the kernel 544# stack of each thread. 545 546options KSTACK_PAGES=3 547 548##################################################################### 549 550# More undocumented options for linting. 551# Note that documenting these are not considered an affront. 552 553options FB_INSTALL_CDEV # install a CDEV entry in /dev 554 555options KBDIO_DEBUG=2 556options KBD_MAXRETRY=4 557options KBD_MAXWAIT=6 558options KBD_RESETDELAY=201 559 560options PSM_DEBUG=1 561 562options TIMER_FREQ=((14318182+6)/12) 563 564options VM_KMEM_SIZE 565options VM_KMEM_SIZE_MAX 566options VM_KMEM_SIZE_SCALE 567 568# Enable NDIS binary driver support 569options NDISAPI 570device ndis 571 572# Linux-specific pseudo devices support 573device lindev 574