diff options
| author | Atish Patra <atish.patra@wdc.com> | 2020-11-18 16:38:29 -0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2021-01-14 15:08:58 -0800 |
| commit | 4f0e8eef772ee4438f304b2178bc28c958b6c13d (patch) | |
| tree | f793c5f7bbfdf6b9546db49bb98563ec212d504d /arch/riscv/Kconfig | |
| parent | 3e5b0bdb2a4dd8c09a9db01b1ead3f69cabd0c67 (diff) | |
riscv: Add numa support for riscv64 platform
Use the generic numa implementation to add NUMA support for RISC-V.
This is based on Greentime's patch[1] but modified to use generic NUMA
implementation and few more fixes.
[1] https://lkml.org/lkml/2020/1/10/233
Co-developed-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/Kconfig')
| -rw-r--r-- | arch/riscv/Kconfig | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 81b76d44725d..2ef05ef921b5 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -143,7 +143,7 @@ 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 @@ -298,6 +298,35 @@ config TUNE_GENERIC endchoice +# Common NUMA Features +config NUMA + bool "NUMA Memory Allocation and Scheduler Support" + 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 |