Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits)
  x86, mm: Allow ZONE_DMA to be configurable
  x86, NUMA: Trim numa meminfo with max_pfn in a separate loop
  x86, NUMA: Rename setup_node_bootmem() to setup_node_data()
  x86, NUMA: Enable emulation on 32bit too
  x86, NUMA: Enable CONFIG_AMD_NUMA on 32bit too
  x86, NUMA: Rename amdtopology_64.c to amdtopology.c
  x86, NUMA: Make numa_init_array() static
  x86, NUMA: Make 32bit use common NUMA init path
  x86, NUMA: Initialize and use remap allocator from setup_node_bootmem()
  x86-32, NUMA: Add @start and @end to init_alloc_remap()
  x86, NUMA: Remove long 64bit assumption from numa.c
  x86, NUMA: Enable build of generic NUMA init code on 32bit
  x86, NUMA: Move NUMA init logic from numa_64.c to numa.c
  x86-32, NUMA: Update numaq to use new NUMA init protocol
  x86-32, NUMA: Replace srat_32.c with srat.c
  x86-32, NUMA: implement temporary NUMA init shims
  x86, NUMA: Move numa_nodes_parsed to numa.[hc]
  x86-32, NUMA: Move get_memcfg_numa() into numa_32.c
  x86, NUMA: make srat.c 32bit safe
  x86, NUMA: rename srat_64.c to srat.c
  ...

1 files changed, 23 insertions, 20 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 38adb2dca1d5..0a1fe60037f2 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -112,7 +112,14 @@ config MMU
 	def_bool y
 
 config ZONE_DMA
-	def_bool y
+	bool "DMA memory allocation support" if EXPERT
+	default y
+	help
+	  DMA memory allocation support allows devices with less than 32-bit
+	  addressing to allocate within the first 16MB of address space.
+	  Disable if no such devices will be used.
+
+	  If unsure, say Y.
 
 config SBUS
 	bool
@@ -1164,7 +1171,7 @@ comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
 config AMD_NUMA
 	def_bool y
 	prompt "Old style AMD Opteron NUMA detection"
-	depends on X86_64 && NUMA && PCI
+	depends on NUMA && PCI
 	---help---
 	  Enable AMD NUMA node topology detection.  You should say Y here if
 	  you have a multi processor AMD system. This uses an old method to
@@ -1191,7 +1198,7 @@ config NODES_SPAN_OTHER_NODES
 
 config NUMA_EMU
 	bool "NUMA emulation"
-	depends on X86_64 && NUMA
+	depends on NUMA
 	---help---
 	  Enable NUMA emulation. A flat machine will be split
 	  into virtual nodes when booted with "numa=fake=N", where N is the
@@ -1213,6 +1220,10 @@ config HAVE_ARCH_BOOTMEM
 	def_bool y
 	depends on X86_32 && NUMA
 
+config HAVE_ARCH_ALLOC_REMAP
+	def_bool y
+	depends on X86_32 && NUMA
+
 config ARCH_HAVE_MEMORY_PRESENT
 	def_bool y
 	depends on X86_32 && DISCONTIGMEM
@@ -1221,13 +1232,9 @@ config NEED_NODE_MEMMAP_SIZE
 	def_bool y
 	depends on X86_32 && (DISCONTIGMEM || SPARSEMEM)
 
-config HAVE_ARCH_ALLOC_REMAP
-	def_bool y
-	depends on X86_32 && NUMA
-
 config ARCH_FLATMEM_ENABLE
 	def_bool y
-	depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && !NUMA
+	depends on X86_32 && !NUMA
 
 config ARCH_DISCONTIGMEM_ENABLE
 	def_bool y
@@ -1237,20 +1244,16 @@ config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
 	depends on NUMA && X86_32
 
-config ARCH_PROC_KCORE_TEXT
-	def_bool y
-	depends on X86_64 && PROC_KCORE
-
-config ARCH_SPARSEMEM_DEFAULT
-	def_bool y
-	depends on X86_64
-
 config ARCH_SPARSEMEM_ENABLE
 	def_bool y
 	depends on X86_64 || NUMA || (EXPERIMENTAL && X86_32) || X86_32_NON_STANDARD
 	select SPARSEMEM_STATIC if X86_32
 	select SPARSEMEM_VMEMMAP_ENABLE if X86_64
 
+config ARCH_SPARSEMEM_DEFAULT
+	def_bool y
+	depends on X86_64
+
 config ARCH_SELECT_MEMORY_MODEL
 	def_bool y
 	depends on ARCH_SPARSEMEM_ENABLE
@@ -1259,6 +1262,10 @@ config ARCH_MEMORY_PROBE
 	def_bool X86_64
 	depends on MEMORY_HOTPLUG
 
+config ARCH_PROC_KCORE_TEXT
+	def_bool y
+	depends on X86_64 && PROC_KCORE
+
 config ILLEGAL_POINTER_VALUE
        hex
        default 0 if X86_32
@@ -1693,10 +1700,6 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE
 	def_bool y
 	depends on MEMORY_HOTPLUG
 
-config HAVE_ARCH_EARLY_PFN_TO_NID
-	def_bool X86_64
-	depends on NUMA
-
 config USE_PERCPU_NUMA_NODE_ID
 	def_bool y
 	depends on NUMA