On 8/14/20 2:47 PM, Atish Patra wrote: > diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig > index 7b5905529146..4bd67f94aaac 100644 > --- a/arch/riscv/Kconfig > +++ b/arch/riscv/Kconfig > @@ -137,7 +137,7 @@ config PAGE_OFFSET > default 0xffffffe000000000 if 64BIT && MAXPHYSMEM_128GB > > config ARCH_FLATMEM_ENABLE > - def_bool y > + def_bool !NUMA > > config ARCH_SPARSEMEM_ENABLE > def_bool y > @@ -295,6 +295,35 @@ config TUNE_GENERIC > > endchoice > > +# Common NUMA Features > +config NUMA > + bool "Numa Memory Allocation and Scheduler Support" NUMA > + select GENERIC_ARCH_NUMA > + select OF_NUMA > + select ARCH_SUPPORTS_NUMA_BALANCING > + 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 > + > +config NEED_PER_CPU_EMBED_FIRST_CHUNK > + def_bool y > + depends on NUMA > + > config RISCV_ISA_C > bool "Emit compressed instructions when building Linux" > default y thanks. -- ~Randy
