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authorRobert Richter <rrichter@cavium.com>2014-09-08 12:44:48 +0100
committerWill Deacon <will.deacon@arm.com>2014-09-08 14:55:27 +0100
commite3672649faae400e8a598938766a63f395a27ae6 (patch)
treecf99d3fddb92755909a8a4b330ceb5638bd277bf /arch/arm64/Kconfig
parente54bcde3d69d40023ae77727213d14f920eb264a (diff)
downloadlinux-e3672649faae400e8a598938766a63f395a27ae6.tar.bz2
arm64: defconfig: increase NR_CPUS default to 64
Raising the current maximum limit to 64. This is needed for Cavium's Thunder systems that will have at least 48 cores per die. The change keeps the current memory footprint in cpu mask structures. It does not break existing code. Setting the maximum to 64 cpus still boots systems with less cpus. Mark's Juno happily booted with a NR_CPUS=64 kernel. Tested on our Thunder system with 48 cores. We could see interrupts to all cores. Cc: Radha Mohan Chintakuntla <rchintakuntla@cavium.com> Cc: Mark Rutland <mark.rutland@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
-rw-r--r--arch/arm64/Kconfig6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index cfea6237a9e0..f0d3a2d85a5b 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -253,11 +253,11 @@ config SCHED_SMT
places. If unsure say N here.
config NR_CPUS
- int "Maximum number of CPUs (2-32)"
- range 2 32
+ int "Maximum number of CPUs (2-64)"
+ range 2 64
depends on SMP
# These have to remain sorted largest to smallest
- default "8"
+ default "64"
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs"