[PATCH] [27/66] x86_64: Move kernel to 2MB

["Andi Kleen" <ak@xxxxxxx>]

As suggested by Andi (and Alan), move the default kernel location
from 1Mb to 2Mb, to align to the start of a TLB entry.

Signed-off-by: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
Signed-off-by: Andi Kleen <ak@xxxxxxx>

---
 arch/x86_64/Kconfig |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

Index: linux/arch/x86_64/Kconfig
===================================================================
--- linux.orig/arch/x86_64/Kconfig
+++ linux/arch/x86_64/Kconfig
@@ -429,10 +429,10 @@ config CRASH_DUMP
 config PHYSICAL_START
 	hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
 	default "0x1000000" if CRASH_DUMP
-	default "0x100000"
+	default "0x200000"
 	help
 	  This gives the physical address where the kernel is loaded. Normally
-	  for regular kernels this value is 0x100000 (1MB). But in the case
+	  for regular kernels this value is 0x200000 (2MB). 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
@@ -464,6 +464,14 @@ config SECCOMP
 
 source kernel/Kconfig.hz
 
+config REORDER
+	bool "Function reordering"
+	default n
+	help
+         This option enables the toolchain to reorder functions for a more 
+         optimal TLB usage. If you have pretty much any version of binutils, 
+	 this can increase your kernel build time by roughly one minute.
+
 endmenu
 
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