Merge branch 'x86/numa' into x86/devel

Conflicts:

	arch/x86/Kconfig
	arch/x86/kernel/e820.c
	arch/x86/kernel/efi_64.c
	arch/x86/kernel/mpparse.c
	arch/x86/kernel/setup.c
	arch/x86/kernel/setup_32.c
	arch/x86/mm/init_64.c
	include/asm-x86/proto.h

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 31 insertions, 4 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 640dc62a7fa0..112afd368c77 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -121,7 +121,7 @@ config ARCH_HAS_CACHE_LINE_SIZE
         def_bool y
 
 config HAVE_SETUP_PER_CPU_AREA
-        def_bool X86_64 || (X86_SMP && !X86_VOYAGER)
+        def_bool X86_64_SMP || (X86_SMP && !X86_VOYAGER)
 
 config HAVE_CPUMASK_OF_CPU_MAP
         def_bool X86_64_SMP
@@ -579,7 +579,21 @@ config SWIOTLB
 
 config IOMMU_HELPER
         def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB)
+config MAXSMP
+        bool "Configure Maximum number of SMP Processors and NUMA Nodes"
+        depends on X86_64 && SMP
+        default n
+        help
+          Configure maximum number of CPUS and NUMA Nodes for this architecture.
+          If unsure, say N.
 
+if MAXSMP
+config NR_CPUS
+        int
+        default "4096"
+endif
+
+if !MAXSMP
 config NR_CPUS
         int "Maximum number of CPUs (2-4096)"
         range 2 4096
@@ -592,7 +606,8 @@ config NR_CPUS
           minimum value which makes sense is 2.
 
           This is purely to save memory - each supported CPU adds
-          approximately one kilobyte to the kernel image.
+          approximately eight kilobytes to the kernel image.
+endif
 
 config SCHED_SMT
         bool "SMT (Hyperthreading) scheduler support"
@@ -983,13 +998,25 @@ config NUMA_EMU
           into virtual nodes when booted with "numa=fake=N", where N is the
           number of nodes. This is only useful for debugging.
 
+if MAXSMP
+
+config NODES_SHIFT
+        int
+        default "9"
+endif
+
+if !MAXSMP
 config NODES_SHIFT
-        int "Max num nodes shift(1-9)"
-        range 1 9  if X86_64
+        int "Maximum NUMA Nodes (as a power of 2)"
+        range 1 9   if X86_64
         default "6" if X86_64
         default "4" if X86_NUMAQ
         default "3"
         depends on NEED_MULTIPLE_NODES
+        help
+          Specify the maximum number of NUMA Nodes available on the target
+          system.  Increases memory reserved to accomodate various tables.
+endif
 
 config HAVE_ARCH_BOOTMEM_NODE
         def_bool y