Re: [RFC/RFT PATCH 6/6] riscv: Add numa support for riscv64 platform
From: Randy Dunlap <hidden>
Date: 2020-08-14 23:22:03
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linux-arch, linux-riscv, lkml
On 8/14/20 2:47 PM, Atish Patra wrote:
quoted hunk ↗ jump to hunk
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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel