V3 ia64 SPARSEMEM - Kconfig and Makefile

The patch modifies the Kconfig file to introduce the new memory model options and other related SPARSEMEM changes. ia64 SPARSEMEM selects ARCH_SPARSEMEM_EXTREME. There is also a minor change in the Makefile.

 Kconfig     |   96 +++++++++++++++++++++++++++++++++++++-----------------------
 mm/Makefile |    5 +--
 2 files changed, 62 insertions(+), 39 deletions(-)

Index: linux-2.6.12-rc4-mm2-broken-dynamic-sparse/arch/ia64/Kconfig
=================================--- linux-2.6.12-rc4-mm2-broken-dynamic-sparse.orig/arch/ia64/Kconfig 2005-06-08 15:56:28.000000000 -0400
+++ linux-2.6.12-rc4-mm2-broken-dynamic-sparse/arch/ia64/Kconfig 2005-06-08 15:57:28.000000000 -0400
@@ -169,40 +169,6 @@ 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 +198,10 @@ 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"
@@ -296,8 +264,64 @@ config PREEMPT
Say Y here if you are building a kernel for a desktop, embedded or real-time system. Say N if you are unsure.

+config ARCH_SELECT_MEMORY_MODEL
+ def_bool y
+
+config ARCH_FLATMEM_ENABLE
+ def_bool y
+
+config ARCH_DISCONTIGMEM_ENABLE
+ def_bool y
+ depends on (IA64_DIG || IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
+ select 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 ARCH_DISCONTIGMEM_DEFAULT
+ def_bool y
+ depends on ARCH_DISCONTIGMEM_ENABLE
+
+config ARCH_FLATMEM_ENABLE
+ def_bool y
+
+config ARCH_SPARSEMEM_ENABLE
+ def_bool y
+ depends on ARCH_DISCONTIGMEM_ENABLE
+ select ARCH_SPARSEMEM_EXTREME
+
source "mm/Kconfig"

+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.

+
+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 HAVE_DEC_LOCK
bool
depends on (SMP || PREEMPT)
Index: linux-2.6.12-rc4-mm2-broken-dynamic-sparse/arch/ia64/mm/Makefile
=================================--- linux-2.6.12-rc4-mm2-broken-dynamic-sparse.orig/arch/ia64/mm/Makefile 2005-06-08 15:56:28.000000000 -0400
+++ linux-2.6.12-rc4-mm2-broken-dynamic-sparse/arch/ia64/mm/Makefile 2005-06-08 15:57:28.000000000 -0400
@@ -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