arm64: default NR_CPUS to 256

There are shipping arm64 platforms with 256 hardware threads. So that we
can make use of these with defconfig, bump the arm64 default NR_CPUS to
256.

At the same time, drop a redundant comment. We only have one default for
NR_CPUS, so there's nothing to sort.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index a4168d3..4cad67b 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -792,8 +792,7 @@ config SCHED_SMT
 config NR_CPUS
        int "Maximum number of CPUs (2-4096)"
        range 2 4096
-       # These have to remain sorted largest to smallest
-       default "64"
+       default "256"
 
 config HOTPLUG_CPU
        bool "Support for hot-pluggable CPUs"