- depends on HIGHMEM
-
-menu "Power management options (ACPI, APM)"
- depends on !X86_VOYAGER
-
-source kernel/power/Kconfig
-
-source "drivers/acpi/Kconfig"
-
-menuconfig APM
- tristate "APM (Advanced Power Management) BIOS support"
- depends on PM_SLEEP && !X86_VISWS
- ---help---
- APM is a BIOS specification for saving power using several different
- techniques. This is mostly useful for battery powered laptops with
- APM compliant BIOSes. If you say Y here, the system time will be
- reset after a RESUME operation, the /proc/apm device will provide
- battery status information, and user-space programs will receive
- notification of APM "events" (e.g. battery status change).
-
- If you select "Y" here, you can disable actual use of the APM
- BIOS by passing the "apm=off" option to the kernel at boot time.
-
- Note that the APM support is almost completely disabled for
- machines with more than one CPU.
-
- In order to use APM, you will need supporting software. For location
- and more information, read <file:Documentation/pm.txt> and the
- Battery Powered Linux mini-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>.
-
- This driver does not spin down disk drives (see the hdparm(8)
- manpage ("man 8 hdparm") for that), and it doesn't turn off
- VESA-compliant "green" monitors.
-
- This driver does not support the TI 4000M TravelMate and the ACER
- 486/DX4/75 because they don't have compliant BIOSes. Many "green"
- desktop machines also don't have compliant BIOSes, and this driver
- may cause those machines to panic during the boot phase.
-
- Generally, if you don't have a battery in your machine, there isn't
- much point in using this driver and you should say N. If you get
- random kernel OOPSes or reboots that don't seem to be related to
- anything, try disabling/enabling this option (or disabling/enabling
- APM in your BIOS).
-
- Some other things you should try when experiencing seemingly random,
- "weird" problems:
-
- 1) make sure that you have enough swap space and that it is
- enabled.
- 2) pass the "no-hlt" option to the kernel
- 3) switch on floating point emulation in the kernel and pass
- the "no387" option to the kernel
- 4) pass the "floppy=nodma" option to the kernel
- 5) pass the "mem=4M" option to the kernel (thereby disabling
- all but the first 4 MB of RAM)
- 6) make sure that the CPU is not over clocked.
- 7) read the sig11 FAQ at <http://www.bitwizard.nl/sig11/>
- 8) disable the cache from your BIOS settings
- 9) install a fan for the video card or exchange video RAM
- 10) install a better fan for the CPU
- 11) exchange RAM chips
- 12) exchange the motherboard.
-
- To compile this driver as a module, choose M here: the
- module will be called apm.
-
-if APM
-
-config APM_IGNORE_USER_SUSPEND
- bool "Ignore USER SUSPEND"
- help
- This option will ignore USER SUSPEND requests. On machines with a
- compliant APM BIOS, you want to say N. However, on the NEC Versa M
- series notebooks, it is necessary to say Y because of a BIOS bug.
-
-config APM_DO_ENABLE
- bool "Enable PM at boot time"
- ---help---
- Enable APM features at boot time. From page 36 of the APM BIOS
- specification: "When disabled, the APM BIOS does not automatically
- power manage devices, enter the Standby State, enter the Suspend
- State, or take power saving steps in response to CPU Idle calls."
- This driver will make CPU Idle calls when Linux is idle (unless this
- feature is turned off -- see "Do CPU IDLE calls", below). This
- should always save battery power, but more complicated APM features
- will be dependent on your BIOS implementation. You may need to turn
- this option off if your computer hangs at boot time when using APM
- support, or if it beeps continuously instead of suspending. Turn
- this off if you have a NEC UltraLite Versa 33/C or a Toshiba
- T400CDT. This is off by default since most machines do fine without
- this feature.
-
-config APM_CPU_IDLE
- bool "Make CPU Idle calls when idle"
- help
- Enable calls to APM CPU Idle/CPU Busy inside the kernel's idle loop.
- On some machines, this can activate improved power savings, such as
- a slowed CPU clock rate, when the machine is idle. These idle calls
- are made after the idle loop has run for some length of time (e.g.,
- 333 mS). On some machines, this will cause a hang at boot time or
- whenever the CPU becomes idle. (On machines with more than one CPU,
- this option does nothing.)
-
-config APM_DISPLAY_BLANK
- bool "Enable console blanking using APM"
- help
- Enable console blanking using the APM. Some laptops can use this to
- turn off the LCD backlight when the screen blanker of the Linux
- virtual console blanks the screen. Note that this is only used by
- the virtual console screen blanker, and won't turn off the backlight
- when using the X Window system. This also doesn't have anything to
- do with your VESA-compliant power-saving monitor. Further, this
- option doesn't work for all laptops -- it might not turn off your
- backlight at all, or it might print a lot of errors to the console,
- especially if you are using gpm.
-
-config APM_ALLOW_INTS
- bool "Allow interrupts during APM BIOS calls"
- help
- Normally we disable external interrupts while we are making calls to
- the APM BIOS as a measure to lessen the effects of a badly behaving
- BIOS implementation. The BIOS should reenable interrupts if it
- needs to. Unfortunately, some BIOSes do not -- especially those in
- many of the newer IBM Thinkpads. If you experience hangs when you
- suspend, try setting this to Y. Otherwise, say N.
-
-config APM_REAL_MODE_POWER_OFF
- bool "Use real mode APM BIOS call to power off"
- help
- Use real mode APM BIOS calls to switch off the computer. This is
- a work-around for a number of buggy BIOSes. Switch this option on if
- your computer crashes instead of powering off properly.
-
-endif # APM
-
-source "arch/x86/kernel/cpu/cpufreq/Kconfig_32"
-
-source "drivers/cpuidle/Kconfig"
-
-endmenu
-
-menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
-
-config PCI
- bool "PCI support" if !X86_VISWS
- depends on !X86_VOYAGER
- default y if X86_VISWS
- select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC)
- help
- Find out whether you have a PCI motherboard. PCI is the name of a
- bus system, i.e. the way the CPU talks to the other stuff inside
- your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
- VESA. If you have PCI, say Y, otherwise N.
-
- The PCI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>, contains valuable
- information about which PCI hardware does work under Linux and which
- doesn't.
-
-choice
- prompt "PCI access mode"
- depends on PCI && !X86_VISWS
- default PCI_GOANY
- ---help---
- On PCI systems, the BIOS can be used to detect the PCI devices and
- determine their configuration. However, some old PCI motherboards
- have BIOS bugs and may crash if this is done. Also, some embedded
- PCI-based systems don't have any BIOS at all. Linux can also try to
- detect the PCI hardware directly without using the BIOS.
-
- With this option, you can specify how Linux should detect the
- PCI devices. If you choose "BIOS", the BIOS will be used,
- if you choose "Direct", the BIOS won't be used, and if you
- choose "MMConfig", then PCI Express MMCONFIG will be used.
- If you choose "Any", the kernel will try MMCONFIG, then the
- direct access method and falls back to the BIOS if that doesn't
- work. If unsure, go with the default, which is "Any".
-
-config PCI_GOBIOS
- bool "BIOS"
-
-config PCI_GOMMCONFIG
- bool "MMConfig"
-
-config PCI_GODIRECT
- bool "Direct"
-
-config PCI_GOANY
- bool "Any"
-
-endchoice
-
-config PCI_BIOS
- bool
- depends on !X86_VISWS && PCI && (PCI_GOBIOS || PCI_GOANY)
- default y
-
-config PCI_DIRECT
- bool
- depends on PCI && ((PCI_GODIRECT || PCI_GOANY) || X86_VISWS)
- default y
-
-config PCI_MMCONFIG
- bool
- depends on PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY)
- default y
-
-config PCI_DOMAINS
- bool
- depends on PCI
- default y
-
-source "drivers/pci/pcie/Kconfig"
-
-source "drivers/pci/Kconfig"
-
-config ISA_DMA_API
- bool
- default y
-
-config ISA
- bool "ISA support"
- depends on !(X86_VOYAGER || X86_VISWS)
- help
- Find out whether you have ISA slots on your motherboard. ISA is the
- name of a bus system, i.e. the way the CPU talks to the other stuff
- inside your box. Other bus systems are PCI, EISA, MicroChannel
- (MCA) or VESA. ISA is an older system, now being displaced by PCI;
- newer boards don't support it. If you have ISA, say Y, otherwise N.
-
-config EISA
- bool "EISA support"
- depends on ISA
- ---help---
- The Extended Industry Standard Architecture (EISA) bus was
- developed as an open alternative to the IBM MicroChannel bus.
-
- The EISA bus provided some of the features of the IBM MicroChannel
- bus while maintaining backward compatibility with cards made for
- the older ISA bus. The EISA bus saw limited use between 1988 and
- 1995 when it was made obsolete by the PCI bus.
-
- Say Y here if you are building a kernel for an EISA-based machine.
-
- Otherwise, say N.
-
-source "drivers/eisa/Kconfig"
-
-config MCA
- bool "MCA support" if !(X86_VISWS || X86_VOYAGER)
- default y if X86_VOYAGER
- help
- MicroChannel Architecture is found in some IBM PS/2 machines and
- laptops. It is a bus system similar to PCI or ISA. See
- <file:Documentation/mca.txt> (and especially the web page given
- there) before attempting to build an MCA bus kernel.
-
-source "drivers/mca/Kconfig"
-
-config SCx200
- tristate "NatSemi SCx200 support"
- depends on !X86_VOYAGER
- help
- This provides basic support for National Semiconductor's
- (now AMD's) Geode processors. The driver probes for the
- PCI-IDs of several on-chip devices, so its a good dependency
- for other scx200_* drivers.
-
- If compiled as a module, the driver is named scx200.
-
-config SCx200HR_TIMER
- tristate "NatSemi SCx200 27MHz High-Resolution Timer Support"
- depends on SCx200 && GENERIC_TIME
- default y
- help
- This driver provides a clocksource built upon the on-chip
- 27MHz high-resolution timer. Its also a workaround for
- NSC Geode SC-1100's buggy TSC, which loses time when the
- processor goes idle (as is done by the scheduler). The
- other workaround is idle=poll boot option.
-
-config GEODE_MFGPT_TIMER
- bool "Geode Multi-Function General Purpose Timer (MFGPT) events"
- depends on MGEODE_LX && GENERIC_TIME && GENERIC_CLOCKEVENTS
- default y
- help
- This driver provides a clock event source based on the MFGPT
- timer(s) in the CS5535 and CS5536 companion chip for the geode.
- MFGPTs have a better resolution and max interval than the
- generic PIT, and are suitable for use as high-res timers.
-
-config K8_NB
- def_bool y
- depends on AGP_AMD64
-
-source "drivers/pcmcia/Kconfig"
projects / linux-2.6 / blobdiff