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##################################################################### 16# SMP OPTIONS: 17# 18# Notes: 19# 20# IPI_PREEMPTION instructs the kernel to preempt threads running on other 21# CPUS if needed. Relies on the PREEMPTION option 22 23# Optional: 24options IPI_PREEMPTION 25device atpic # Optional legacy pic support 26device mptable # Optional MPSPEC mptable support 27 28# 29# Watchdog routines. 30# 31options MP_WATCHDOG 32 33# 34# Debugging options. 35# 36options STOP_NMI # Stop CPUS using NMI instead of IPI 37 38 39 40##################################################################### 41# CPU OPTIONS 42 43# 44# You must specify at least one CPU (the one you intend to run on); 45# deleting the specification for CPUs you don't need to use may make 46# parts of the system run faster. 47# 48cpu HAMMER # aka K8, aka Opteron & Athlon64 49 50# 51# Options for CPU features. 52# 53 54# 55# PERFMON causes the driver for Pentium/Pentium Pro performance counters 56# to be compiled. See perfmon(4) for more information. 57# 58#XXX#options PERFMON 59 60 61##################################################################### 62# NETWORKING OPTIONS 63 64# 65# DEVICE_POLLING adds support for mixed interrupt-polling handling 66# of network device drivers, which has significant benefits in terms 67# of robustness to overloads and responsivity, as well as permitting 68# accurate scheduling of the CPU time between kernel network processing 69# and other activities. The drawback is a moderate (up to 1/HZ seconds) 70# potential increase in response times. 71# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING 72# to achieve smoother behaviour. 73# Additionally, you can enable/disable polling at runtime with help of 74# the ifconfig(8) utility, and select the CPU fraction reserved to 75# userland with the sysctl variable kern.polling.user_frac 76# (default 50, range 0..100). 77# 78# Not all device drivers support this mode of operation at the time of 79# this writing. See polling(4) for more details. 80 81options DEVICE_POLLING 82 83# BPF_JITTER adds support for BPF just-in-time compiler. 84 85options BPF_JITTER 86 87 88##################################################################### 89# CLOCK OPTIONS 90 91# Provide read/write access to the memory in the clock chip. 92device nvram # Access to rtc cmos via /dev/nvram 93 94 95##################################################################### 96# MISCELLANEOUS DEVICES AND OPTIONS 97 98device speaker #Play IBM BASIC-style noises out your speaker 99hint.speaker.0.at="isa" 100hint.speaker.0.port="0x61" 101device gzip #Exec gzipped a.out's. REQUIRES COMPAT_AOUT! 102 103 104##################################################################### 105# HARDWARE BUS CONFIGURATION 106 107# 108# ISA bus 109# 110device isa 111 112# 113# Options for `isa': 114# 115# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A 116# interrupt controller. This saves about 0.7-1.25 usec for each interrupt. 117# This option breaks suspend/resume on some portables. 118# 119# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A 120# interrupt controller. This saves about 0.7-1.25 usec for each interrupt. 121# Automatic EOI is documented not to work for for the slave with the 122# original i8259A, but it works for some clones and some integrated 123# versions. 124# 125# MAXMEM specifies the amount of RAM on the machine; if this is not 126# specified, FreeBSD will first read the amount of memory from the CMOS 127# RAM, so the amount of memory will initially be limited to 64MB or 16MB 128# depending on the BIOS. If the BIOS reports 64MB, a memory probe will 129# then attempt to detect the installed amount of RAM. If this probe 130# fails to detect >64MB RAM you will have to use the MAXMEM option. 131# The amount is in kilobytes, so for a machine with 128MB of RAM, it would 132# be 131072 (128 * 1024). 133# 134# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to 135# reset the CPU for reboot. This is needed on some systems with broken 136# keyboard controllers. 137 138options AUTO_EOI_1 139#options AUTO_EOI_2 140 141options MAXMEM=(128*1024) 142#options BROKEN_KEYBOARD_RESET 143 144# 145# PCI bus & PCI options: 146# 147device pci 148 149# 150# AGP GART support 151device agp 152 153# 154# AGP debugging. 155# 156options AGP_DEBUG 157 158 159##################################################################### 160# HARDWARE DEVICE CONFIGURATION 161 162# 163# Optional devices: 164# 165 166# PS/2 mouse 167device psm 168hint.psm.0.at="atkbdc" 169hint.psm.0.irq="12" 170 171# Options for psm: 172options PSM_HOOKRESUME #hook the system resume event, useful 173 #for some laptops 174options PSM_RESETAFTERSUSPEND #reset the device at the resume event 175 176# The keyboard controller; it controls the keyboard and the PS/2 mouse. 177device atkbdc 178hint.atkbdc.0.at="isa" 179hint.atkbdc.0.port="0x060" 180 181# The AT keyboard 182device atkbd 183hint.atkbd.0.at="atkbdc" 184hint.atkbd.0.irq="1" 185 186# Options for atkbd: 187options ATKBD_DFLT_KEYMAP # specify the built-in keymap 188makeoptions ATKBD_DFLT_KEYMAP=jp.106 189 190# `flags' for atkbd: 191# 0x01 Force detection of keyboard, else we always assume a keyboard 192# 0x02 Don't reset keyboard, useful for some newer ThinkPads 193# 0x03 Force detection and avoid reset, might help with certain 194# dockingstations 195# 0x04 Old-style (XT) keyboard support, useful for older ThinkPads 196 197# Video card driver for VGA adapters. 198device vga 199hint.vga.0.at="isa" 200 201# Options for vga: 202# Try the following option if the mouse pointer is not drawn correctly 203# or font does not seem to be loaded properly. May cause flicker on 204# some systems. 205options VGA_ALT_SEQACCESS 206 207# If you can dispense with some vga driver features, you may want to 208# use the following options to save some memory. 209#options VGA_NO_FONT_LOADING # don't save/load font 210#options VGA_NO_MODE_CHANGE # don't change video modes 211 212# Older video cards may require this option for proper operation. 213options VGA_SLOW_IOACCESS # do byte-wide i/o's to TS and GDC regs 214 215# The following option probably won't work with the LCD displays. 216options VGA_WIDTH90 # support 90 column modes 217 218# Debugging. 219options VGA_DEBUG 220 221# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support. This will create 222# the /dev/3dfx0 device to work with glide implementations. This should get 223# linked to /dev/3dfx and /dev/voodoo. Note that this is not the same as 224# the tdfx DRI module from XFree86 and is completely unrelated. 225# 226# To enable Linuxulator support, one must also include COMPAT_LINUX in the 227# config as well. The other option is to load both as modules. 228 229device tdfx # Enable 3Dfx Voodoo support 230#XXX#device tdfx_linux # Enable Linuxulator support 231 232# 233# ACPI support using the Intel ACPI Component Architecture reference 234# implementation. 235# 236# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer 237# kernel environment variables to select initial debugging levels for the 238# Intel ACPICA code. (Note that the Intel code must also have USE_DEBUGGER 239# defined when it is built). 240# 241# ACPI_NO_SEMAPHORES makes the AcpiOs*Semaphore routines a no-op. 242 243device acpi 244options ACPI_DEBUG 245#!options ACPI_NO_SEMAPHORES 246 247# The cpufreq(4) driver provides support for non-ACPI CPU frequency control 248device cpufreq 249 250# Direct Rendering modules for 3D acceleration. 251device drm # DRM core module required by DRM drivers 252device i915drm # Intel i830 through i915 253device mach64drm # ATI Rage Pro, Rage Mobility P/M, Rage XL 254device mgadrm # AGP Matrox G200, G400, G450, G550 255device r128drm # ATI Rage 128 256device radeondrm # ATI Radeon 257device savagedrm # S3 Savage3D, Savage4 258device sisdrm # SiS 300/305, 540, 630 259device tdfxdrm # 3dfx Voodoo 3/4/5 and Banshee 260options DRM_DEBUG # Include debug printfs (slow) 261 262# 263# Network interfaces: 264# 265 266# ed: Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503 267# HP PC Lan+, various PC Card devices 268# (requires miibus) 269# ipw: Intel PRO/Wireless 2100 IEEE 802.11 adapter 270# iwi: Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11 adapters 271# iwn: Intel Wireless WiFi Link 4965AGN 802.11 network adapters 272# nfe: nVidia nForce MCP on-board Ethernet Networking (BSD open source) 273# nve: nVidia nForce MCP on-board Ethernet Networking 274# ral: Ralink Technology IEEE 802.11 wireless adapter 275# wpi: Intel 3945ABG Wireless LAN controller 276 277device ed 278options ED_3C503 279options ED_HPP 280options ED_SIC 281device iwi 282device iwn 283device ipw 284device nfe 285device nve 286device ral 287device wpi 288 289device ath # Atheros pci/cardbus NIC's 290device ath_hal # pci/cardbus chip support 291options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors 292device ath_rate_sample # SampleRate tx rate control for ath 293#device ath_rate_amrr # AMRR rate control for ath driver 294#device ath_rate_onoe # Onoe rate control for ath driver 295 296# 297#XXX this stores pointers in a 32bit field that is defined by the hardware 298#device pst 299 300# 301# Areca 11xx and 12xx series of SATA II RAID controllers. 302# CAM is required. 303# 304device arcmsr # Areca SATA II RAID 305 306# 307# 3ware 9000 series PATA/SATA RAID controller driver and options. 308# The driver is implemented as a SIM, and so, needs the CAM infrastructure. 309# 310options TWA_DEBUG # 0-10; 10 prints the most messages. 311options TWA_FLASH_FIRMWARE # firmware image bundled when defined. 312device twa # 3ware 9000 series PATA/SATA RAID 313 314# 315# SCSI host adapters: 316# 317# ncv: NCR 53C500 based SCSI host adapters. 318# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters. 319# stg: TMC 18C30, 18C50 based SCSI host adapters. 320 321device ncv 322device nsp 323device stg 324 325# 326# Adaptec FSA RAID controllers, including integrated DELL controllers, 327# the Dell PERC 2/QC and the HP NetRAID-4M 328device aac 329device aacp # SCSI Passthrough interface (optional, CAM required) 330 331# 332# Highpoint RocketRAID 182x. 333device hptmv 334 335# 336# Highpoint RocketRAID. Supports RR172x, RR222x, RR2240, RR232x, RR2340, 337# RR2210, RR174x, RR2522, RR231x, RR230x. 338device hptrr 339 340# 341# Highpoint RocketRaid 3xxx series SATA RAID 342device hptiop 343 344# 345# IBM (now Adaptec) ServeRAID controllers 346device ips 347 348# 349# SafeNet crypto driver: can be moved to the MI NOTES as soon as 350# it's tested on a big-endian machine 351# 352device safe # SafeNet 1141 353options SAFE_DEBUG # enable debugging support: hw.safe.debug 354options SAFE_RNDTEST # enable rndtest support 355 356##################################################################### 357 358# 359# Miscellaneous hardware: 360# 361# ipmi: Intelligent Platform Management Interface 362# pbio: Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724) 363# smbios: DMI/SMBIOS entry point 364# vpd: Vital Product Data kernel interface 365# asmc: Apple System Management Controller 366# si: Specialix International SI/XIO or SX intelligent serial card 367 368# Notes on the Specialix SI/XIO driver: 369# The host card is memory, not IO mapped. 370# The Rev 1 host cards use a 64K chunk, on a 32K boundary. 371# The Rev 2 host cards use a 32K chunk, on a 32K boundary. 372# The cards can use an IRQ of 11, 12 or 15. 373 374device ipmi 375device pbio 376hint.pbio.0.at="isa" 377hint.pbio.0.port="0x360" 378device smbios 379device vpd 380device asmc 381#device si 382 383# 384# Laptop/Notebook options: 385# 386 387 388# 389# I2C Bus 390# 391 392# 393# Hardware watchdog timers: 394# 395# ichwd: Intel ICH watchdog timer 396# 397device ichwd 398 399# 400# Temperature sensors: 401# 402# coretemp: on-die sensor on Intel Core and newer CPUs 403# k8temp: on-die sensor on AMD K8 CPUs 404# 405device coretemp 406device k8temp 407 408# 409# CPU control pseudo-device. Provides access to MSRs, CPUID info and 410# microcode update feature. 411# 412device cpuctl 413 414# 415# System Management Bus (SMB) 416# 417options ENABLE_ALART # Control alarm on Intel intpm driver 418 419# 420# Set the number of PV entries per process. Increasing this can 421# stop panics related to heavy use of shared memory. However, that can 422# (combined with large amounts of physical memory) cause panics at 423# boot time due the kernel running out of VM space. 424# 425# If you're tweaking this, you might also want to increase the sysctls 426# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target". 427# 428# The value below is the one more than the default. 429# 430options PMAP_SHPGPERPROC=201 431 432 433##################################################################### 434# ABI Emulation 435 436#XXX keep these here for now and reactivate when support for emulating 437#XXX these 32 bit binaries is added. 438 439# Enable 32-bit runtime support for FreeBSD/i386 binaries. 440options COMPAT_IA32 441 442# Enable iBCS2 runtime support for SCO and ISC binaries 443#XXX#options IBCS2 444 445# Emulate spx device for client side of SVR3 local X interface 446#XXX#options SPX_HACK 447 448# Enable Linux ABI emulation 449#XXX#options COMPAT_LINUX 450 451# Enable 32-bit Linux ABI emulation (requires COMPAT_43 and COMPAT_IA32) 452options COMPAT_LINUX32 453 454# Enable the linux-like proc filesystem support (requires COMPAT_LINUX32 455# and PSEUDOFS) 456options LINPROCFS 457 458#Enable the linux-like sys filesystem support (requires COMPAT_LINUX32 459# and PSEUDOFS) 460options LINSYSFS 461 462# 463# SysVR4 ABI emulation 464# 465# The svr4 ABI emulator can be statically compiled into the kernel or loaded as 466# a KLD module. 467# The STREAMS network emulation code can also be compiled statically or as a 468# module. If loaded as a module, it must be loaded before the svr4 module 469# (the /usr/sbin/svr4 script does this for you). If compiling statically, 470# the `streams' device must be configured into any kernel which also 471# specifies COMPAT_SVR4. It is possible to have a statically-configured 472# STREAMS device and a dynamically loadable svr4 emulator; the /usr/sbin/svr4 473# script understands that it doesn't need to load the `streams' module under 474# those circumstances. 475# Caveat: At this time, `options KTRACE' is required for the svr4 emulator 476# (whether static or dynamic). 477# 478#XXX#options COMPAT_SVR4 # build emulator statically 479#XXX#options DEBUG_SVR4 # enable verbose debugging 480#XXX#device streams # STREAMS network driver (required for svr4). 481 482 483##################################################################### 484# VM OPTIONS 485 486# KSTACK_PAGES is the number of memory pages to assign to the kernel 487# stack of each thread. 488 489options KSTACK_PAGES=3 490 491##################################################################### 492 493# More undocumented options for linting. 494# Note that documenting these are not considered an affront. 495 496options FB_INSTALL_CDEV # install a CDEV entry in /dev 497 498options KBDIO_DEBUG=2 499options KBD_MAXRETRY=4 500options KBD_MAXWAIT=6 501options KBD_RESETDELAY=201 502 503options PSM_DEBUG=1 504 505options TIMER_FREQ=((14318182+6)/12) 506 507options VM_KMEM_SIZE 508options VM_KMEM_SIZE_MAX 509options VM_KMEM_SIZE_SCALE 510 511# Enable NDIS binary driver support 512#options NDISAPI 513#device ndis 514