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yaml
---
r: 99784
b: refs/heads/master
c: 1184dc2
h: refs/heads/master
v: v3
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Mike Travis authored and Ingo Molnar committed Jul 8, 2008
1 parent 3462faa commit 03c2707
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2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 7496b60654e759d0b9008b80908e80727904b3c4
refs/heads/master: 1184dc2ffe2c8fb9afb766d870850f2c3165ef25
37 changes: 32 additions & 5 deletions trunk/arch/x86/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -561,20 +561,35 @@ config SWIOTLB

config IOMMU_HELPER
def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB)
config MAXSMP
bool "Configure Maximum number of SMP Processors and NUMA Nodes"
depends on X86_64 && SMP
default n
help
Configure maximum number of CPUS and NUMA Nodes for this architecture.
If unsure, say N.

if MAXSMP
config NR_CPUS
int "Maximum number of CPUs (2-255)"
range 2 255
int
default "4096"
endif

if !MAXSMP
config NR_CPUS
int "Maximum number of CPUs (2-4096)"
range 2 4096
depends on SMP
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 255 and the
kernel will support. The maximum supported value is 4096 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"
Expand Down Expand Up @@ -965,13 +980,25 @@ 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 "Max num nodes shift(1-9)"
range 1 9 if X86_64
int "Maximum NUMA Nodes (as a power of 2)"
range 1 9 if X86_64
default "6" if X86_64
default "4" if X86_NUMAQ
default "3"
depends on NEED_MULTIPLE_NODES
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
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