With sparsemem being introduced, we need a central place for new
memory-related .config options: mm/Kconfig.
For all architectures, this just means that you'll see a
"Memory Model" choice in your architecture menu. For those that
implement DISCONTIGMEM, you may eventually want to make your
ARCH_DISCONTIGMEM_ENABLE a "def_bool y" and make your users
select DISCONTIGMEM right out of the new choice menu. The only
disadvantage might be if you have some specific things that you
need in your help option for DISCONTIGMEM.
The new option, CONFIG_FLATMEM, is there to enable us to detangle
NUMA and DISCONTIGMEM. This is a requirement for sparsemem
because sparsemem uses the NUMA code without the presence of
DISCONTIGMEM. The sparsemem patches use CONFIG_FLATMEM in generic
code, so this patch is a requirement before applying them.
Almost all places that used to do '#ifndef CONFIG_DISCONTIGMEM'
should use '#ifdef CONFIG_FLATMEM' instead.
Signed-off-by: Dave Hansen <[email protected]>
---
memhotplug-dave/arch/alpha/Kconfig | 4 +++-
memhotplug-dave/arch/arm/Kconfig | 4 +++-
memhotplug-dave/arch/arm26/Kconfig | 2 ++
memhotplug-dave/arch/cris/Kconfig | 2 ++
memhotplug-dave/arch/frv/Kconfig | 2 ++
memhotplug-dave/arch/h8300/Kconfig.cpu | 3 +++
memhotplug-dave/arch/i386/Kconfig | 4 +++-
memhotplug-dave/arch/ia64/Kconfig | 4 +++-
memhotplug-dave/arch/m32r/Kconfig | 4 +++-
memhotplug-dave/arch/m68k/Kconfig | 2 ++
memhotplug-dave/arch/m68knommu/Kconfig | 2 ++
memhotplug-dave/arch/mips/Kconfig | 6 +++++-
memhotplug-dave/arch/parisc/Kconfig | 8 +++++++-
memhotplug-dave/arch/ppc/Kconfig | 2 ++
memhotplug-dave/arch/ppc64/Kconfig | 4 +++-
memhotplug-dave/arch/s390/Kconfig | 2 ++
memhotplug-dave/arch/sh/Kconfig | 8 +++++++-
memhotplug-dave/arch/sh64/Kconfig | 2 ++
memhotplug-dave/arch/sparc/Kconfig | 2 ++
memhotplug-dave/arch/sparc64/Kconfig | 2 ++
memhotplug-dave/arch/um/Kconfig | 1 +
memhotplug-dave/arch/v850/Kconfig | 2 ++
memhotplug-dave/arch/x86_64/Kconfig | 4 +++-
23 files changed, 66 insertions(+), 10 deletions(-)
diff -puN arch/alpha/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/alpha/Kconfig
--- memhotplug/arch/alpha/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/alpha/Kconfig 2005-03-25 08:08:22.000000000 -0800
@@ -505,7 +505,7 @@ config NR_CPUS
depends on SMP
default "64"
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
bool "Discontiguous Memory Support (EXPERIMENTAL)"
depends on EXPERIMENTAL
help
@@ -514,6 +514,8 @@ config DISCONTIGMEM
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
+source "mm/Kconfig"
+
config NUMA
bool "NUMA Support (EXPERIMENTAL)"
depends on DISCONTIGMEM
diff -puN arch/arm/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/arm/Kconfig
--- memhotplug/arch/arm/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/arm/Kconfig 2005-03-25 08:08:22.000000000 -0800
@@ -289,7 +289,7 @@ config NR_CPUS
depends on SMP
default "4"
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
bool
depends on ARCH_EDB7211 || ARCH_SA1100 || (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
default y
@@ -299,6 +299,8 @@ config DISCONTIGMEM
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
+source "mm/Kconfig"
+
# Now handle the bus types
config PCI
bool "PCI support" if ARCH_INTEGRATOR_AP
diff -puN arch/arm26/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/arm26/Kconfig
--- memhotplug/arch/arm26/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/arm26/Kconfig 2005-03-25 08:08:22.000000000 -0800
@@ -175,6 +175,8 @@ config CMDLINE
time by entering them here. As a minimum, you should specify the
memory size and the root device (e.g., mem=64M root=/dev/nfs).
+source "mm/Kconfig"
+
endmenu
source "drivers/base/Kconfig"
diff -puN arch/cris/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/cris/Kconfig
--- memhotplug/arch/cris/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/cris/Kconfig 2005-03-25 08:08:22.000000000 -0800
@@ -74,6 +74,8 @@ 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.
+source mm/Kconfig
+
endmenu
menu "Hardware setup"
diff -puN arch/frv/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/frv/Kconfig
--- memhotplug/arch/frv/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/frv/Kconfig 2005-03-25 08:08:22.000000000 -0800
@@ -74,6 +74,8 @@ config HIGHPTE
with a lot of RAM, this can be wasteful of precious low memory.
Setting this option will put user-space page tables in high memory.
+source "mm/Kconfig"
+
choice
prompt "uClinux kernel load address"
depends on !MMU
diff -puN arch/h8300/Kconfig.cpu~A7-make-each-arch-use-mm-Kconfig arch/h8300/Kconfig.cpu
--- memhotplug/arch/h8300/Kconfig.cpu~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/h8300/Kconfig.cpu 2005-03-25 08:08:22.000000000 -0800
@@ -180,4 +180,7 @@ config CPU_H8S
config PREEMPT
bool "Preemptible Kernel"
default n
+
+source "mm/Kconfig'
+
endmenu
diff -puN arch/i386/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/i386/Kconfig
--- memhotplug/arch/i386/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/i386/Kconfig 2005-03-25 08:08:22.000000000 -0800
@@ -767,7 +767,7 @@ comment "NUMA (NUMA-Q) requires SMP, 64G
comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
depends on X86_SUMMIT && (!HIGHMEM64G || !ACPI)
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
bool
depends on NUMA
default y
@@ -792,6 +792,8 @@ config HAVE_ARCH_ALLOC_REMAP
depends on NUMA
default y
+source "mm/Kconfig"
+
config HIGHPTE
bool "Allocate 3rd-level pagetables from highmem"
depends on HIGHMEM4G || HIGHMEM64G
diff -puN arch/ia64/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/ia64/Kconfig
--- memhotplug/arch/ia64/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/ia64/Kconfig 2005-03-25 08:08:22.000000000 -0800
@@ -188,7 +188,7 @@ config HOLES_IN_ZONE
bool
default y if VIRTUAL_MEM_MAP
-config DISCONTIGMEM
+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
@@ -272,6 +272,8 @@ 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.
+source "mm/Kconfig"
+
config HAVE_DEC_LOCK
bool
depends on (SMP || PREEMPT)
diff -puN arch/m32r/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/m32r/Kconfig
--- memhotplug/arch/m32r/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/m32r/Kconfig 2005-03-25 08:08:22.000000000 -0800
@@ -167,11 +167,13 @@ config NOHIGHMEM
bool
default y
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
bool "Internal RAM Support"
depends on CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP
default y
+source "mm/Kconfig"
+
config IRAM_START
hex "Internal memory start address (hex)"
default "00f00000"
diff -puN arch/m68k/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/m68k/Kconfig
--- memhotplug/arch/m68k/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/m68k/Kconfig 2005-03-25 08:08:22.000000000 -0800
@@ -357,6 +357,8 @@ config 060_WRITETHROUGH
is hardwired on. The 53c710 SCSI driver is known to suffer from
this problem.
+source "mm/Kconfig"
+
endmenu
menu "General setup"
diff -puN arch/m68knommu/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/m68knommu/Kconfig
--- memhotplug/arch/m68knommu/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/m68knommu/Kconfig 2005-03-25 08:08:22.000000000 -0800
@@ -532,6 +532,8 @@ config ROMKERNEL
endchoice
+source "mm/Kconfig"
+
endmenu
menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
diff -puN arch/mips/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/mips/Kconfig
--- memhotplug/arch/mips/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/mips/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -492,7 +492,7 @@ config SGI_SN0_N_MODE
which allows for more memory. Your system is most probably
running in M-Mode, so you should say N here.
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
bool
default y if SGI_IP27
help
@@ -501,6 +501,10 @@ config DISCONTIGMEM
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
+config ARCH_FLATMEM_DISABLE
+ def_bool y
+ depends on ARCH_DISCONTIGMEM_ENABLE
+
config NUMA
bool "NUMA Support"
depends on SGI_IP27
diff -puN arch/parisc/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/parisc/Kconfig
--- memhotplug/arch/parisc/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/parisc/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -144,7 +144,7 @@ config HOTPLUG_CPU
default y if SMP
select HOTPLUG
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
bool "Discontiguous memory support (EXPERIMENTAL)"
depends on EXPERIMENTAL
help
@@ -153,6 +153,12 @@ config DISCONTIGMEM
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
+config ARCH_FLATMEM_DISABLE
+ def_bool y
+ depends on ARCH_DISCONTIGMEM_ENABLE
+
+source "mm/Kconfig"
+
config PREEMPT
bool
# bool "Preemptible Kernel"
diff -puN arch/ppc/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/ppc/Kconfig
--- memhotplug/arch/ppc/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/ppc/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -893,6 +893,8 @@ config PREEMPT
config HIGHMEM
bool "High memory support"
+source "mm/Kconfig"
+
source "fs/Kconfig.binfmt"
config PROC_DEVICETREE
diff -puN arch/ppc64/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/ppc64/Kconfig
--- memhotplug/arch/ppc64/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/ppc64/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -198,10 +198,12 @@ config HMT
This option enables hardware multithreading on RS64 cpus.
pSeries systems p620 and p660 have such a cpu type.
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
bool "Discontiguous Memory Support"
depends on SMP && PPC_PSERIES
+source "mm/Kconfig"
+
config NUMA
bool "NUMA support"
depends on DISCONTIGMEM
diff -puN arch/s390/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/s390/Kconfig
--- memhotplug/arch/s390/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/s390/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -226,6 +226,8 @@ config WARN_STACK_SIZE
This allows you to specify the maximum frame size a function may
have without the compiler complaining about it.
+source "mm/Kconfig"
+
comment "I/O subsystem configuration"
config MACHCHK_WARNING
diff -puN arch/sh/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/sh/Kconfig
--- memhotplug/arch/sh/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/sh/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -486,7 +486,7 @@ config CPU_SUBTYPE_ST40
depends on CPU_SUBTYPE_ST40STB1 || CPU_SUBTYPE_ST40GX1
default y
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
bool
depends on SH_HP690
default y
@@ -496,6 +496,12 @@ config DISCONTIGMEM
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
+config ARCH_FLATMEM_DISABLE
+ def_bool y
+ depends on ARCH_DISCONTIGMEM_ENABLE
+
+source "mm/Kconfig"
+
config ZERO_PAGE_OFFSET
hex "Zero page offset"
default "0x00001000" if !(SH_MPC1211 || SH_SH03)
diff -puN arch/sh64/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/sh64/Kconfig
--- memhotplug/arch/sh64/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/sh64/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -217,6 +217,8 @@ config PREEMPT
bool "Preemptible Kernel (EXPERIMENTAL)"
depends on EXPERIMENTAL
+source "mm/Kconfig"
+
endmenu
menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
diff -puN arch/sparc/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/sparc/Kconfig
--- memhotplug/arch/sparc/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/sparc/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -291,6 +291,8 @@ config PRINTER
If you have more than 8 printers, you need to increase the LP_NO
macro in lp.c and the PARPORT_MAX macro in parport.h.
+source "mm/Kconfig"
+
endmenu
source "drivers/base/Kconfig"
diff -puN arch/sparc64/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/sparc64/Kconfig
--- memhotplug/arch/sparc64/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/sparc64/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -462,6 +462,8 @@ config CMDLINE
NOTE: This option WILL override the PROM bootargs setting!
+source "mm/Kconfig"
+
endmenu
source "drivers/base/Kconfig"
diff -puN arch/um/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/um/Kconfig
--- memhotplug/arch/um/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/um/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -69,6 +69,7 @@ config MODE_SKAS
option will shrink the UML binary slightly.
source "arch/um/Kconfig_arch"
+source "mm/Kconfig"
config LD_SCRIPT_STATIC
bool
diff -puN arch/v850/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/v850/Kconfig
--- memhotplug/arch/v850/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/v850/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -218,6 +218,8 @@ menu "Processor type and features"
a lot of RAM, and you need to able to allocate very large
contiguous chunks. If unsure, say N.
+source "mm/Kconfig"
+
endmenu
diff -puN arch/x86_64/Kconfig~A7-make-each-arch-use-mm-Kconfig arch/x86_64/Kconfig
--- memhotplug/arch/x86_64/Kconfig~A7-make-each-arch-use-mm-Kconfig 2005-03-25 08:08:22.000000000 -0800
+++ memhotplug-dave/arch/x86_64/Kconfig 2005-03-25 08:08:23.000000000 -0800
@@ -282,7 +282,7 @@ 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.
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
bool
depends on NUMA
default y
@@ -291,6 +291,8 @@ config NUMA
bool
default n
+source "mm/Kconfig"
+
config HAVE_DEC_LOCK
bool
depends on SMP
_
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