Merge branch 'xen-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen

[linux-2.6] / arch / i386 / Kconfig

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index f9524933258a47601a6838b4a3768fb296b9fbce..7a95c58947e42043f96580024b307e5ef7efcbcc 100644 (file)
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -214,6 +214,17 @@ config X86_ES7000
 
 endchoice
 
+config SCHED_NO_NO_OMIT_FRAME_POINTER
+       bool "Single-depth WCHAN output"
+       default y
+       help
+         Calculate simpler /proc/<PID>/wchan values. If this option
+         is disabled then wchan values will recurse back to the
+         caller function. This provides more accurate wchan values,
+         at the expense of slightly more scheduling overhead.
+
+         If in doubt, say "Y".
+
 config PARAVIRT
        bool "Paravirtualization support (EXPERIMENTAL)"
        depends on EXPERIMENTAL
@@ -226,7 +237,7 @@ config PARAVIRT
          However, when run without a hypervisor the kernel is
          theoretically slower.  If in doubt, say N.
 
-source "arch/i386/xen/Kconfig"
+source "arch/x86/xen/Kconfig"
 
 config VMI
        bool "VMI Paravirt-ops support"
@@ -614,10 +625,14 @@ config X86_PAE
 
 # Common NUMA Features
 config NUMA
-       bool "Numa Memory Allocation and Scheduler Support"
-       depends on SMP && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI)
+       bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
+       depends on SMP && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) && EXPERIMENTAL
        default n if X86_PC
        default y if (X86_NUMAQ || X86_SUMMIT)
+       help
+         NUMA support for i386. This is currently high experimental
+         and should be only used for kernel development. It might also
+         cause boot failures.
 
 comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
        depends on X86_SUMMIT && (!HIGHMEM64G || !ACPI)
@@ -703,7 +718,7 @@ config MATH_EMULATION
          intend to use this kernel on different machines.
 
          More information about the internals of the Linux math coprocessor
-         emulation can be found in <file:arch/i386/math-emu/README>.
+         emulation can be found in <file:arch/x86/math-emu/README>.
 
          If you are not sure, say Y; apart from resulting in a 66 KB bigger
          kernel, it won't hurt.
@@ -816,12 +831,13 @@ config CRASH_DUMP
        depends on HIGHMEM
        help
          Generate crash dump after being started by kexec.
-          This should be normally only set in special crash dump kernels
+         This should be normally only set in special crash dump kernels
          which are loaded in the main kernel with kexec-tools into
          a specially reserved region and then later executed after
          a crash by kdump/kexec. The crash dump kernel must be compiled
-          to a memory address not used by the main kernel or BIOS using
-          PHYSICAL_START.
+         to a memory address not used by the main kernel or BIOS using
+         PHYSICAL_START, or it must be built as a relocatable image
+         (CONFIG_RELOCATABLE=y).
          For more details see Documentation/kdump/kdump.txt
 
 config PHYSICAL_START
@@ -867,17 +883,17 @@ config PHYSICAL_START
          Don't change this unless you know what you are doing.
 
 config RELOCATABLE
-       bool "Build a relocatable kernel(EXPERIMENTAL)"
+       bool "Build a relocatable kernel (EXPERIMENTAL)"
        depends on EXPERIMENTAL
        help
          This builds a kernel image that retains relocation information
-          so it can be loaded someplace besides the default 1MB.
+         so it can be loaded someplace besides the default 1MB.
          The relocations tend to make the kernel binary about 10% larger,
-          but are discarded at runtime.
+         but are discarded at runtime.
 
          One use is for the kexec on panic case where the recovery kernel
-          must live at a different physical address than the primary
-          kernel.
+         must live at a different physical address than the primary
+         kernel.
 
 config PHYSICAL_ALIGN
        hex "Alignment value to which kernel should be aligned"
@@ -1063,7 +1079,7 @@ config APM_REAL_MODE_POWER_OFF
 
 endif # APM
 
-source "arch/i386/kernel/cpu/cpufreq/Kconfig"
+source "arch/x86/kernel/cpu/cpufreq/Kconfig"
 
 endmenu
 
@@ -1133,6 +1149,11 @@ config PCI_MMCONFIG
        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"
@@ -1202,6 +1223,16 @@ config SCx200HR_TIMER
          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
@@ -1226,12 +1257,16 @@ source "fs/Kconfig"
 
 menuconfig INSTRUMENTATION
        bool "Instrumentation Support"
-       depends on EXPERIMENTAL
        default y
+       ---help---
+         Say Y here to get to see options related to performance measurement,
+         debugging, and testing. This option alone does not add any kernel code.
+
+         If you say N, all options in this submenu will be skipped and disabled.
 
 if INSTRUMENTATION
 
-source "arch/i386/oprofile/Kconfig"
+source "arch/x86/oprofile/Kconfig"
 
 config KPROBES
        bool "Kprobes"