arm64, numa: Add NUMA support for arm64 platforms.

[cascardo/linux.git] / arch / arm64 / Kconfig

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 4f43622..99f9b55 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -76,6 +76,7 @@ config ARM64
        select HAVE_HW_BREAKPOINT if PERF_EVENTS
        select HAVE_IRQ_TIME_ACCOUNTING
        select HAVE_MEMBLOCK
+       select HAVE_MEMBLOCK_NODE_MAP if NUMA
        select HAVE_PATA_PLATFORM
        select HAVE_PERF_EVENTS
        select HAVE_PERF_REGS
@@ -98,6 +99,7 @@ config ARM64
        select SYSCTL_EXCEPTION_TRACE
        select HAVE_CONTEXT_TRACKING
        select HAVE_ARM_SMCCC
+       select OF_NUMA if NUMA && OF
        help
          ARM 64-bit (AArch64) Linux support.
 
@@ -546,6 +548,30 @@ config HOTPLUG_CPU
          Say Y here to experiment with turning CPUs off and on.  CPUs
          can be controlled through /sys/devices/system/cpu.
 
+# Common NUMA Features
+config NUMA
+       bool "Numa Memory Allocation and Scheduler Support"
+       depends on SMP
+       help
+         Enable NUMA (Non Uniform Memory Access) support.
+
+         The kernel will try to allocate memory used by a CPU on the
+         local memory of the CPU and add some more
+         NUMA awareness to the kernel.
+
+config NODES_SHIFT
+       int "Maximum NUMA Nodes (as a power of 2)"
+       range 1 10
+       default "2"
+       depends on NEED_MULTIPLE_NODES
+       help
+         Specify the maximum number of NUMA Nodes available on the target
+         system.  Increases memory reserved to accommodate various tables.
+
+config USE_PERCPU_NUMA_NODE_ID
+       def_bool y
+       depends on NUMA
+
 source kernel/Kconfig.preempt
 source kernel/Kconfig.hz