X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fi386%2FKconfig;h=5b1a7d46d1d97972e0a4c1929becdb079eb8ff35;hb=7a2fe8c49f0f346601a18c69ba0f75227c0c5993;hp=d5d0df7f04fcbcf631d9c22884552f4bedaffaea;hpb=e7de369050534025b33aab1033358bf47a577e4d;p=linux-2.6-omap-h63xx.git

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index d5d0df7f04f..5b1a7d46d1d 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -47,15 +47,6 @@ config DMI
 
 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
@@ -451,12 +442,50 @@ config HIGHMEM4G
 
 config HIGHMEM64G
 	bool "64GB"
+	depends on X86_CMPXCHG64
 	help
 	  Select this if you have a 32-bit processor and more than 4
 	  gigabytes of physical RAM.
 
 endchoice
 
+choice
+	depends on EXPERIMENTAL && !X86_PAE
+	prompt "Memory split"
+	default VMSPLIT_3G
+	help
+	  Select the desired split between kernel and user memory.
+
+	  If the address range available to the kernel is less than the
+	  physical memory installed, the remaining memory will be available
+	  as "high memory". Accessing high memory is a little more costly
+	  than low memory, as it needs to be mapped into the kernel first.
+	  Note that increasing the kernel address space limits the range
+	  available to user programs, making the address space there
+	  tighter.  Selecting anything other than the default 3G/1G split
+	  will also likely make your kernel incompatible with binary-only
+	  kernel modules.
+
+	  If you are not absolutely sure what you are doing, leave this
+	  option alone!
+
+	config VMSPLIT_3G
+		bool "3G/1G user/kernel split"
+	config VMSPLIT_3G_OPT
+		bool "3G/1G user/kernel split (for full 1G low memory)"
+	config VMSPLIT_2G
+		bool "2G/2G user/kernel split"
+	config VMSPLIT_1G
+		bool "1G/3G user/kernel split"
+endchoice
+
+config PAGE_OFFSET
+	hex
+	default 0xB0000000 if VMSPLIT_3G_OPT
+	default 0x78000000 if VMSPLIT_2G
+	default 0x40000000 if VMSPLIT_1G
+	default 0xC0000000
+
 config HIGHMEM
 	bool
 	depends on HIGHMEM64G || HIGHMEM4G
@@ -702,6 +731,24 @@ config PHYSICAL_START
 
 	  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 && !X86_VOYAGER
+	---help---
+	  Say Y here to experiment with turning CPUs off and on.  CPUs
+	  can be controlled through /sys/devices/system/cpu.
+
+	  Say N.
+
+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.
+
 endmenu
 
 
@@ -988,15 +1035,6 @@ 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"
@@ -1022,6 +1060,7 @@ source "arch/i386/oprofile/Kconfig"
 
 config KPROBES
 	bool "Kprobes (EXPERIMENTAL)"
+	depends on EXPERIMENTAL && MODULES
 	help
 	  Kprobes allows you to trap at almost any kernel address and
 	  execute a callback function.  register_kprobe() establishes