Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband

[linux-2.6-omap-h63xx.git] / arch / i386 / Kconfig

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index dbf90ad6eac363a082deae5141c7fcac7a385279..cbde675bc95c869d6bd06dc21b36a338a00c61b4 100644 (file)
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -29,10 +29,6 @@ config MMU
 config SBUS
        bool
 
-config UID16
-       bool
-       default y
-
 config GENERIC_ISA_DMA
        bool
        default y
@@ -45,8 +41,21 @@ config ARCH_MAY_HAVE_PC_FDC
        bool
        default y
 
+config DMI
+       bool
+       default y
+
 source "init/Kconfig"
 
+config DOUBLEFAULT
+       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.
+
 menu "Processor type and features"
 
 choice
@@ -464,7 +473,6 @@ config NUMA
        depends on SMP && HIGHMEM64G && (X86_NUMAQ || X86_GENERICARCH || (X86_SUMMIT && ACPI))
        default n if X86_PC
        default y if (X86_NUMAQ || X86_SUMMIT)
-       select SPARSEMEM_STATIC
 
 # Need comments to help the hapless user trying to turn on NUMA support
 comment "NUMA (NUMA-Q) requires SMP, 64GB highmem support"
@@ -493,6 +501,10 @@ config HAVE_ARCH_ALLOC_REMAP
        depends on NUMA
        default y
 
+config ARCH_FLATMEM_ENABLE
+       def_bool y
+       depends on (ARCH_SELECT_MEMORY_MODEL && X86_PC)
+
 config ARCH_DISCONTIGMEM_ENABLE
        def_bool y
        depends on NUMA
@@ -503,7 +515,8 @@ config ARCH_DISCONTIGMEM_DEFAULT
 
 config ARCH_SPARSEMEM_ENABLE
        def_bool y
-       depends on NUMA
+       depends on (NUMA || (X86_PC && EXPERIMENTAL))
+       select SPARSEMEM_STATIC
 
 config ARCH_SELECT_MEMORY_MODEL
        def_bool y
@@ -626,10 +639,6 @@ config REGPARM
        and passes the first three arguments of a function call in registers.
        This will probably break binary only modules.
 
-       This feature is only enabled for gcc-3.0 and later - earlier compilers
-       generate incorrect output with certain kernel constructs when
-       -mregparm=3 is used.
-
 config SECCOMP
        bool "Enable seccomp to safely compute untrusted bytecode"
        depends on PROC_FS
@@ -649,17 +658,6 @@ config SECCOMP
 
 source kernel/Kconfig.hz
 
-config PHYSICAL_START
-       hex "Physical address where the kernel is loaded" if EMBEDDED
-       default "0x100000"
-       help
-         This gives the physical address where the kernel is loaded.
-         Primarily used in the case of kexec on panic where the
-         fail safe kernel needs to run at a different address than
-         the panic-ed kernel.
-
-         Don't change this unless you know what you are doing.
-
 config KEXEC
        bool "kexec system call (EXPERIMENTAL)"
        depends on EXPERIMENTAL
@@ -679,11 +677,40 @@ config KEXEC
 
 config CRASH_DUMP
        bool "kernel crash dumps (EXPERIMENTAL)"
-       depends on EMBEDDED
        depends on EXPERIMENTAL
        depends on HIGHMEM
        help
          Generate crash dump after being started by kexec.
+
+config PHYSICAL_START
+       hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
+
+       default "0x1000000" if CRASH_DUMP
+       default "0x100000"
+       help
+         This gives the physical address where the kernel is loaded. Normally
+         for regular kernels this value is 0x100000 (1MB). But in the case
+         of kexec on panic the fail safe kernel needs to run at a different
+         address than the panic-ed kernel. This option is used to set the load
+         address for kernels used to capture crash dump on being kexec'ed
+         after panic. The default value for crash dump kernels is
+         0x1000000 (16MB). This can also be set based on the "X" value as
+         specified in the "crashkernel=YM@XM" command line boot parameter
+         passed to the panic-ed kernel. Typically this parameter is set as
+         crashkernel=64M@16M. Please take a look at
+         Documentation/kdump/kdump.txt for more details about crash dumps.
+
+         Don't change this unless you know what you are doing.
+
+config HOTPLUG_CPU
+       bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
+       depends on SMP && HOTPLUG && EXPERIMENTAL
+       ---help---
+         Say Y here to experiment with turning CPUs off and on.  CPUs
+         can be controlled through /sys/devices/system/cpu.
+
+         Say N.
+
 endmenu
 
 
@@ -970,15 +997,6 @@ config SCx200
          This support is also available as a module.  If compiled as a
          module, it will be called scx200.
 
-config HOTPLUG_CPU
-       bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
-       depends on SMP && HOTPLUG && EXPERIMENTAL
-       ---help---
-         Say Y here to experiment with turning CPUs off and on.  CPUs
-         can be controlled through /sys/devices/system/cpu.
-
-         Say N.
-
 source "drivers/pcmcia/Kconfig"
 
 source "drivers/pci/hotplug/Kconfig"
@@ -1055,3 +1073,7 @@ config X86_TRAMPOLINE
        bool
        depends on X86_SMP || (X86_VOYAGER && SMP)
        default y
+
+config KTIME_SCALAR
+       bool
+       default y