[PATCH] V5 ia64 SPARSEMEM - Kconfig and Makefile

The patch modifies the Kconfig file to introduce the new memory model
options and other related SPARSEMEM changes.  There is also a minor change
in the Makefile.

Signed-off-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 945c15a0722b894eeac86f2778326313eadf4b5f..a86236d6ba5d0268653e86c9e70890fb6a00bc9b 100644 (file)
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -63,8 +63,6 @@ config IA64_GENERIC
        select ACPI
        select NUMA
        select ACPI_NUMA
-       select VIRTUAL_MEM_MAP
-       select DISCONTIGMEM
        help
          This selects the system type of your hardware.  A "generic" kernel
          will run on any supported IA-64 system.  However, if you configure
@@ -176,40 +174,6 @@ config IA64_L1_CACHE_SHIFT
        default "6" if ITANIUM
 
 # align cache-sensitive data to 64 bytes
-config NUMA
-       bool "NUMA support"
-       depends on !IA64_HP_SIM
-       default y if IA64_SGI_SN2
-       select ACPI_NUMA
-       help
-         Say Y to compile the kernel to support NUMA (Non-Uniform Memory
-         Access).  This option is for configuring high-end multiprocessor
-         server systems.  If in doubt, say N.
-
-config VIRTUAL_MEM_MAP
-       bool "Virtual mem map"
-       default y if !IA64_HP_SIM
-       help
-         Say Y to compile the kernel with support for a virtual mem map.
-         This code also only takes effect if a memory hole of greater than
-         1 Gb is found during boot.  You must turn this option on if you
-         require the DISCONTIGMEM option for your machine. If you are
-         unsure, say Y.
-
-config HOLES_IN_ZONE
-       bool
-       default y if VIRTUAL_MEM_MAP
-
-config ARCH_DISCONTIGMEM_ENABLE
-       bool "Discontiguous memory support"
-       depends on (IA64_DIG || IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) && NUMA && VIRTUAL_MEM_MAP
-       default y if (IA64_SGI_SN2 || IA64_GENERIC) && NUMA
-       help
-         Say Y to support efficient handling of discontiguous physical memory,
-         for architectures which are either NUMA (Non-Uniform Memory Access)
-         or have huge holes in the physical address space for other reasons.
-         See <file:Documentation/vm/numa> for more.
-
 config IA64_CYCLONE
        bool "Cyclone (EXA) Time Source support"
        help
@@ -232,8 +196,10 @@ config IA64_SGI_SN_XP
          based on a network adapter and DMA messaging.
 
 config FORCE_MAX_ZONEORDER
-       int
-       default "18"
+       int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
+       range 11 17  if !HUGETLB_PAGE
+       default "17" if HUGETLB_PAGE
+       default "11"
 
 config SMP
        bool "Symmetric multi-processing support"
@@ -298,6 +264,58 @@ config PREEMPT
 
 source "mm/Kconfig"
 
+config ARCH_SELECT_MEMORY_MODEL
+       def_bool y
+
+config ARCH_DISCONTIGMEM_ENABLE
+       def_bool y
+       help
+         Say Y to support efficient handling of discontiguous physical memory,
+         for architectures which are either NUMA (Non-Uniform Memory Access)
+         or have huge holes in the physical address space for other reasons.
+         See <file:Documentation/vm/numa> for more.
+
+config ARCH_FLATMEM_ENABLE
+       def_bool y
+
+config ARCH_SPARSEMEM_ENABLE
+       def_bool y
+       depends on ARCH_DISCONTIGMEM_ENABLE
+
+config ARCH_DISCONTIGMEM_DEFAULT
+       def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
+       depends on ARCH_DISCONTIGMEM_ENABLE
+
+config NUMA
+       bool "NUMA support"
+       depends on !IA64_HP_SIM && !FLATMEM
+       default y if IA64_SGI_SN2
+       help
+         Say Y to compile the kernel to support NUMA (Non-Uniform Memory
+         Access).  This option is for configuring high-end multiprocessor
+         server systems.  If in doubt, say N.
+
+# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
+# VIRTUAL_MEM_MAP has been retained for historical reasons.
+config VIRTUAL_MEM_MAP
+       bool "Virtual mem map"
+       depends on !SPARSEMEM
+       default y if !IA64_HP_SIM
+       help
+         Say Y to compile the kernel with support for a virtual mem map.
+         This code also only takes effect if a memory hole of greater than
+         1 Gb is found during boot.  You must turn this option on if you
+         require the DISCONTIGMEM option for your machine. If you are
+         unsure, say Y.
+
+config HOLES_IN_ZONE
+       bool
+       default y if VIRTUAL_MEM_MAP
+
+config HAVE_ARCH_EARLY_PFN_TO_NID
+       def_bool y
+       depends on NEED_MULTIPLE_NODES
+
 config IA32_SUPPORT
        bool "Support for Linux/x86 binaries"
        help

diff --git a/arch/ia64/mm/Makefile b/arch/ia64/mm/Makefile
index 7078f67887ecc3d1e36b93e066fb87c705f2ca89..d78d20f0a0f041668c1b9680037a7769613a4dc6 100644 (file)
--- a/arch/ia64/mm/Makefile
+++ b/arch/ia64/mm/Makefile
@@ -7,6 +7,5 @@ obj-y := init.o fault.o tlb.o extable.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_NUMA)        += numa.o
 obj-$(CONFIG_DISCONTIGMEM) += discontig.o
-ifndef CONFIG_DISCONTIGMEM
-obj-y += contig.o
-endif
+obj-$(CONFIG_SPARSEMEM)           += discontig.o
+obj-$(CONFIG_FLATMEM)     += contig.o