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authorIngo Molnar <mingo@elte.hu>2008-09-05 17:53:05 +0200
committerIngo Molnar <mingo@elte.hu>2008-09-05 17:53:05 +0200
commit28c3cfd5fb998bd3683bebeebbba38baa2101cad (patch)
tree3d325023e6dc56baa6c69fc59dd55bf37ef7967e /arch/x86/Kconfig
parent04197c83b3e05546d1003cfa3ff43f1639c0057f (diff)
parentb380b0d4f7dffcc235c0facefa537d4655619101 (diff)
downloadlinux-linaro-android-28c3cfd5fb998bd3683bebeebbba38baa2101cad.tar.gz
Merge branch 'linus' into x86/tracehook
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig36
1 files changed, 11 insertions, 25 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2206787b115..ebfd7ff82ad 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -578,35 +578,29 @@ config SWIOTLB
config IOMMU_HELPER
def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
+
config MAXSMP
bool "Configure Maximum number of SMP Processors and NUMA Nodes"
- depends on X86_64 && SMP
+ depends on X86_64 && SMP && BROKEN
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
+ int "Maximum number of CPUs (2-512)" if !MAXSMP
+ range 2 512
depends on SMP
+ default "4096" if MAXSMP
default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000
default "8"
help
This allows you to specify the maximum number of CPUs which this
- kernel will support. The maximum supported value is 4096 and the
+ kernel will support. The maximum supported value is 512 and the
minimum value which makes sense is 2.
This is purely to save memory - each supported CPU adds
approximately eight kilobytes to the kernel image.
-endif
config SCHED_SMT
bool "SMT (Hyperthreading) scheduler support"
@@ -952,9 +946,9 @@ config NUMA
local memory controller of the CPU and add some more
NUMA awareness to the kernel.
- For i386 this is currently highly experimental and should be only
+ For 32-bit this is currently highly experimental and should be only
used for kernel development. It might also cause boot failures.
- For x86_64 this is recommended on all multiprocessor Opteron systems.
+ For 64-bit this is recommended on all multiprocessor Opteron systems.
If the system is EM64T, you should say N unless your system is
EM64T NUMA.
@@ -997,17 +991,10 @@ 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 "Maximum NUMA Nodes (as a power of 2)"
+ int "Maximum NUMA Nodes (as a power of 2)" if !MAXSMP
range 1 9 if X86_64
+ default "9" if MAXSMP
default "6" if X86_64
default "4" if X86_NUMAQ
default "3"
@@ -1015,7 +1002,6 @@ config NODES_SHIFT
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
@@ -1264,7 +1250,7 @@ config KEXEC
strongly in flux, so no good recommendation can be made.
config CRASH_DUMP
- bool "kernel crash dumps (EXPERIMENTAL)"
+ bool "kernel crash dumps"
depends on X86_64 || (X86_32 && HIGHMEM)
help
Generate crash dump after being started by kexec.