Merge commit 'v2.6.28-rc8' into x86/doc

[sfrench/cifs-2.6.git] / arch / x86 / Kconfig

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e60c59b81bdd78b2f29607d0ceb5b8ecc48c86b6..e795b5ba25b2a9cd18d08ad15f5eb9cfc16f8b83 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -167,9 +167,12 @@ config GENERIC_PENDING_IRQ
 config X86_SMP
        bool
        depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64)
-       select USE_GENERIC_SMP_HELPERS
        default y
 
+config USE_GENERIC_SMP_HELPERS
+       def_bool y
+       depends on SMP
+
 config X86_32_SMP
        def_bool y
        depends on X86_32 && SMP
@@ -955,22 +958,26 @@ config ARCH_PHYS_ADDR_T_64BIT
 
 # Common NUMA Features
 config NUMA
-       bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
+       bool "Numa Memory Allocation and Scheduler Support"
        depends on SMP
        depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
        default n if X86_PC
        default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
        help
          Enable NUMA (Non Uniform Memory Access) support.
+
          The kernel will try to allocate memory used by a CPU on the
          local memory controller of the CPU and add some more
          NUMA awareness to the kernel.
 
-         For 32-bit this is currently highly experimental and should be only
-         used for kernel development. It might also cause boot failures.
-         For 64-bit this is recommended on all multiprocessor Opteron systems.
-         If the system is EM64T, you should say N unless your system is
-         EM64T NUMA.
+         For 64-bit this is recommended if the system is Intel Core i7
+         (or later), AMD Opteron, or EM64T NUMA.
+
+         For 32-bit this is only needed on (rare) 32-bit-only platforms
+         that support NUMA topologies, such as NUMAQ / Summit, or if you
+         boot a 32-bit kernel on a 64-bit NUMA platform.
+
+         Otherwise, you should say N.
 
 comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
        depends on X86_32 && X86_SUMMIT && (!HIGHMEM64G || !ACPI)
@@ -1494,7 +1501,7 @@ config HAVE_ARCH_EARLY_PFN_TO_NID
        def_bool X86_64
        depends on NUMA
 
-menu "Power management options"
+menu "Power management and ACPI options"
        depends on !X86_VOYAGER
 
 config ARCH_HIBERNATION_HEADER