--- arch/arm/Kconfig

+++ arch/arm/Kconfig

@@ -20,6 +20,7 @@ config ARM

select HAVE_KERNEL_GZIP

select HAVE_KERNEL_LZO

select HAVE_KERNEL_LZMA

+ select HAVE_KERNEL_XZ

select HAVE_IRQ_WORK

select HAVE_PERF_EVENTS

select PERF_USE_VMALLOC

@@ -29,6 +30,9 @@ config ARM

select HAVE_GENERIC_HARDIRQS

select HAVE_SPARSE_IRQ

select GENERIC_IRQ_SHOW

+ select HAVE_BPF_JIT

+ select GENERIC_STRNCPY_FROM_USER

+ select GENERIC_STRNLEN_USER

help

The ARM series is a line of low-power-consumption RISC chip designs

licensed by ARM Ltd and targeted at embedded applications and

@@ -1420,6 +1424,31 @@ config SMP_ON_UP

If you don't know what to do here, say Y.

+config ARM_CPU_TOPOLOGY

+ bool "Support cpu topology definition"

+ depends on SMP && CPU_V7

+ default y

+ help

+ Support ARM cpu topology definition. The MPIDR register defines

+ affinity between processors which is then used to describe the cpu

+ topology of an ARM System.

+

+config SCHED_MC

+ bool "Multi-core scheduler support"

+ depends on ARM_CPU_TOPOLOGY

+ help

+ Multi-core scheduler support improves the CPU scheduler's decision

+ making when dealing with multi-core CPU chips at a cost of slightly

+ increased overhead in some places. If unsure say N here.

+

+config SCHED_SMT

+ bool "SMT scheduler support"

+ depends on ARM_CPU_TOPOLOGY

+ help

+ Improves the CPU scheduler's decision making when dealing with

+ MultiThreading at a cost of slightly increased overhead in some

+ places. If unsure say N here.

+

config HAVE_ARM_SCU

bool

depends on SMP