X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2Fi386%2FKconfig;h=c134a545b37eaeaa3f67435a0366b382ec89e3d9;hb=1a3f239ddf9208f2e52d36fef1c1c4518cbbbabe;hp=f17bd1d2707eb31be18fd1010fb225b641e823d5;hpb=1e9f28fa1eb9773bf65bae08288c6a0a38eef4a7;p=safe%2Fjmp%2Flinux-2.6 diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index f17bd1d..c134a54 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -14,6 +14,18 @@ config X86_32 486, 586, Pentiums, and various instruction-set-compatible chips by AMD, Cyrix, and others. +config GENERIC_TIME + bool + default y + +config LOCKDEP_SUPPORT + bool + default y + +config STACKTRACE_SUPPORT + bool + default y + config SEMAPHORE_SLEEPERS bool default y @@ -53,6 +65,35 @@ source "init/Kconfig" menu "Processor type and features" +config SMP + bool "Symmetric multi-processing support" + ---help--- + This enables support for systems with more than one CPU. If you have + a system with only one CPU, like most personal computers, say N. If + you have a system with more than one CPU, say Y. + + If you say N here, the kernel will run on single and multiprocessor + machines, but will use only one CPU of a multiprocessor machine. If + you say Y here, the kernel will run on many, but not all, + singleprocessor machines. On a singleprocessor machine, the kernel + will run faster if you say N here. + + Note that if you say Y here and choose architecture "586" or + "Pentium" under "Processor family", the kernel will not work on 486 + architectures. Similarly, multiprocessor kernels for the "PPro" + architecture may not work on all Pentium based boards. + + People using multiprocessor machines who say Y here should also say + Y to "Enhanced Real Time Clock Support", below. The "Advanced Power + Management" code will be disabled if you say Y here. + + See also the , + , + and the SMP-HOWTO available at + . + + If you don't know what to do here, say N. + choice prompt "Subarchitecture Type" default X86_PC @@ -101,6 +142,7 @@ config X86_SUMMIT In particular, it is needed for the x440. If you don't have one of these computers, you should say N here. + If you want to build a NUMA kernel, you must select ACPI. config X86_BIGSMP bool "Support for other sub-arch SMP systems with more than 8 CPUs" @@ -124,10 +166,10 @@ config X86_VISWS config X86_GENERICARCH bool "Generic architecture (Summit, bigsmp, ES7000, default)" - depends on SMP help This option compiles in the Summit, bigsmp, ES7000, default subarchitectures. It is intended for a generic binary kernel. + If you want a NUMA kernel, select ACPI. We need SRAT for NUMA. config X86_ES7000 bool "Support for Unisys ES7000 IA32 series" @@ -143,7 +185,13 @@ endchoice config ACPI_SRAT bool default y - depends on NUMA && (X86_SUMMIT || X86_GENERICARCH) + depends on ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH) + select ACPI_NUMA + +config HAVE_ARCH_PARSE_SRAT + bool + default y + depends on ACPI_SRAT config X86_SUMMIT_NUMA bool @@ -178,35 +226,6 @@ config HPET_EMULATE_RTC depends on HPET_TIMER && RTC=y default y -config SMP - bool "Symmetric multi-processing support" - ---help--- - This enables support for systems with more than one CPU. If you have - a system with only one CPU, like most personal computers, say N. If - you have a system with more than one CPU, say Y. - - If you say N here, the kernel will run on single and multiprocessor - machines, but will use only one CPU of a multiprocessor machine. If - you say Y here, the kernel will run on many, but not all, - singleprocessor machines. On a singleprocessor machine, the kernel - will run faster if you say N here. - - Note that if you say Y here and choose architecture "586" or - "Pentium" under "Processor family", the kernel will not work on 486 - architectures. Similarly, multiprocessor kernels for the "PPro" - architecture may not work on all Pentium based boards. - - People using multiprocessor machines who say Y here should also say - Y to "Enhanced Real Time Clock Support", below. The "Advanced Power - Management" code will be disabled if you say Y here. - - See also the , - , - and the SMP-HOWTO available at - . - - If you don't know what to do here, say N. - config NR_CPUS int "Maximum number of CPUs (2-255)" range 2 255 @@ -223,8 +242,7 @@ config NR_CPUS config SCHED_SMT bool "SMT (Hyperthreading) scheduler support" - depends on SMP - default off + depends on X86_HT help SMT scheduler support improves the CPU scheduler's decision making when dealing with Intel Pentium 4 chips with HyperThreading at a @@ -233,7 +251,7 @@ config SCHED_SMT config SCHED_MC bool "Multi-core scheduler support" - depends on SMP + depends on X86_HT default y help Multi-core scheduler support improves the CPU scheduler's decision @@ -244,7 +262,7 @@ source "kernel/Kconfig.preempt" config X86_UP_APIC bool "Local APIC support on uniprocessors" - depends on !SMP && !(X86_VISWS || X86_VOYAGER) + depends on !SMP && !(X86_VISWS || X86_VOYAGER || X86_GENERICARCH) help A local APIC (Advanced Programmable Interrupt Controller) is an integrated interrupt controller in the CPU. If you have a single-CPU @@ -269,12 +287,12 @@ config X86_UP_IOAPIC config X86_LOCAL_APIC bool - depends on X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) + depends on X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) || X86_GENERICARCH default y config X86_IO_APIC bool - depends on X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) + depends on X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) || X86_GENERICARCH default y config X86_VISWS_APIC @@ -319,6 +337,15 @@ config X86_MCE_P4THERMAL Enabling this feature will cause a message to be printed when the P4 enters thermal throttling. +config VM86 + default y + bool "Enable VM86 support" if EMBEDDED + help + This option is required by programs like DOSEMU to run 16-bit legacy + code on X86 processors. It also may be needed by software like + XFree86 to initialize some video cards via BIOS. Disabling this + option saves about 6k. + config TOSHIBA tristate "Toshiba Laptop support" ---help--- @@ -467,7 +494,7 @@ endchoice choice depends on EXPERIMENTAL && !X86_PAE - prompt "Memory split" + prompt "Memory split" if EMBEDDED default VMSPLIT_3G help Select the desired split between kernel and user memory. @@ -511,17 +538,24 @@ config X86_PAE bool depends on HIGHMEM64G default y + select RESOURCES_64BIT # Common NUMA Features config NUMA bool "Numa Memory Allocation and Scheduler Support" - depends on SMP && HIGHMEM64G && (X86_NUMAQ || X86_GENERICARCH || (X86_SUMMIT && ACPI)) + depends on SMP && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) default n if X86_PC default y if (X86_NUMAQ || X86_SUMMIT) comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI" depends on X86_SUMMIT && (!HIGHMEM64G || !ACPI) +config NODES_SHIFT + int + default "4" if X86_NUMAQ + default "3" + depends on NEED_MULTIPLE_NODES + config HAVE_ARCH_BOOTMEM_NODE bool depends on NUMA @@ -639,7 +673,7 @@ config MTRR See for more information. config EFI - bool "Boot from EFI support (EXPERIMENTAL)" + bool "Boot from EFI support" depends on ACPI default n ---help--- @@ -710,10 +744,10 @@ config KEXEC help kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot - but it is indepedent of the system firmware. And like a reboot + but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux. - The name comes from the similiarity to the exec system call. + The name comes from the similarity to the exec system call. It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not @@ -750,24 +784,29 @@ config PHYSICAL_START config HOTPLUG_CPU bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" - depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER && !X86_PC + depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER ---help--- - Say Y here to experiment with turning CPUs off and on. CPUs - can be controlled through /sys/devices/system/cpu. + Say Y here to experiment with turning CPUs off and on, and to + enable suspend on SMP systems. CPUs can be controlled through + /sys/devices/system/cpu. - Say N. - -config DOUBLEFAULT +config COMPAT_VDSO + bool "Compat VDSO support" default y - bool "Enable doublefault exception handler" if EMBEDDED help - This option allows trapping of rare doublefault exceptions that - would otherwise cause a system to silently reboot. Disabling this - option saves about 4k and might cause you much additional grey - hair. + Map the VDSO to the predictable old-style address too. + ---help--- + Say N here if you are running a sufficiently recent glibc + version (2.3.3 or later), to remove the high-mapped + VDSO mapping and to exclusively use the randomized VDSO. + + If unsure, say Y. endmenu +config ARCH_ENABLE_MEMORY_HOTPLUG + def_bool y + depends on HIGHMEM menu "Power management options (ACPI, APM)" depends on !X86_VOYAGER @@ -1044,13 +1083,27 @@ config SCx200 tristate "NatSemi SCx200 support" depends on !X86_VOYAGER help - This provides basic support for the National Semiconductor SCx200 - processor. Right now this is just a driver for the GPIO pins. + 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 you don't know what to do here, say N. + If compiled as a module, the driver is named scx200. - This support is also available as a module. If compiled as a - module, it will be called 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 K8_NB + def_bool y + depends on AGP_AMD64 source "drivers/pcmcia/Kconfig"