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authorSam Ravnborg <sam@ravnborg.org>2007-11-06 20:41:05 +0100
committerSam Ravnborg <sam@ravnborg.org>2007-11-12 21:02:18 +0100
commite279b6c1d329e50b766bce96aacc197eae8a053b (patch)
tree76bee122c61be1e2897969ed207c09136248c255 /arch/x86/Kconfig
parente8ef95227a66284e070d255f902e2e4139fd141a (diff)
x86: start unification of arch/x86/Kconfig.*
This step introduces the file arch/x86/Kconfig which contains all the menu's from "Power Management" and below. The main part of the new Kconfig file is shared and the remaining i386/x86_64 specific symbols are covered by dependencies. A x86_64 allmodconfig build did not show any differences. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig401
1 files changed, 401 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
new file mode 100644
index 00000000000..d1382c51295
--- /dev/null
+++ b/arch/x86/Kconfig
@@ -0,0 +1,401 @@
+menu "Power management options"
+ depends on !X86_VOYAGER
+
+config ARCH_HIBERNATION_HEADER
+ bool
+ depends on X86_64 && HIBERNATION
+ default y
+
+source "kernel/power/Kconfig"
+
+source "drivers/acpi/Kconfig"
+
+menuconfig APM
+ tristate "APM (Advanced Power Management) BIOS support"
+ depends on X86_32 && 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"
+
+source "drivers/cpuidle/Kconfig"
+
+endmenu
+
+
+menu "Bus options (PCI etc.)"
+
+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 X86_32 && 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_32 && !X86_VISWS && PCI && (PCI_GOBIOS || PCI_GOANY)
+ default y
+
+# x86-64 doesn't support PCI BIOS access from long mode so always go direct.
+config PCI_DIRECT
+ bool
+ depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY) || X86_VISWS)
+ default y
+
+config PCI_MMCONFIG
+ bool
+ depends on X86_32 && PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY)
+ default y
+
+config PCI_DOMAINS
+ bool
+ depends on PCI
+ default y
+
+config PCI_MMCONFIG
+ bool "Support mmconfig PCI config space access"
+ depends on X86_64 && PCI && ACPI
+
+config DMAR
+ bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
+ depends on X86_64 && PCI_MSI && ACPI && EXPERIMENTAL
+ help
+ DMA remapping (DMAR) devices support enables independent address
+ translations for Direct Memory Access (DMA) from devices.
+ These DMA remapping devices are reported via ACPI tables
+ and include PCI device scope covered by these DMA
+ remapping devices.
+
+config DMAR_GFX_WA
+ bool "Support for Graphics workaround"
+ depends on DMAR
+ default y
+ help
+ Current Graphics drivers tend to use physical address
+ for DMA and avoid using DMA APIs. Setting this config
+ option permits the IOMMU driver to set a unity map for
+ all the OS-visible memory. Hence the driver can continue
+ to use physical addresses for DMA.
+
+config DMAR_FLOPPY_WA
+ bool
+ depends on DMAR
+ default y
+ help
+ Floppy disk drivers are know to bypass DMA API calls
+ thereby failing to work when IOMMU is enabled. This
+ workaround will setup a 1:1 mapping for the first
+ 16M to make floppy (an ISA device) work.
+
+source "drivers/pci/pcie/Kconfig"
+
+source "drivers/pci/Kconfig"
+
+# x86_64 have no ISA slots, but do have ISA-style DMA.
+config ISA_DMA_API
+ bool
+ default y
+
+if X86_32
+
+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
+
+endif # X86_32
+
+source "drivers/pcmcia/Kconfig"
+
+source "drivers/pci/hotplug/Kconfig"
+
+endmenu
+
+
+menu "Executable file formats / Emulations"
+
+source "fs/Kconfig.binfmt"
+
+config IA32_EMULATION
+ bool "IA32 Emulation"
+ depends on X86_64
+ help
+ Include code to run 32-bit programs under a 64-bit kernel. You should
+ likely turn this on, unless you're 100% sure that you don't have any
+ 32-bit programs left.
+
+config IA32_AOUT
+ tristate "IA32 a.out support"
+ depends on IA32_EMULATION
+ help
+ Support old a.out binaries in the 32bit emulation.
+
+config COMPAT
+ bool
+ depends on IA32_EMULATION
+ default y
+
+config COMPAT_FOR_U64_ALIGNMENT
+ def_bool COMPAT
+ depends on X86_64
+
+config SYSVIPC_COMPAT
+ bool
+ depends on X86_64 && COMPAT && SYSVIPC
+ default y
+
+endmenu
+
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "drivers/firmware/Kconfig"
+
+source "fs/Kconfig"
+
+source "kernel/Kconfig.instrumentation"
+
+source "arch/x86/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"