From: Randy Dunlap <rdunlap@infradead.org>
To: Atish Patra <atish.patra@wdc.com>, linux-kernel@vger.kernel.org
Cc: Greentime Hu <greentime.hu@sifive.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Andrew Morton <akpm@linux-foundation.org>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Anup Patel <Anup.Patel@wdc.com>, Arnd Bergmann <arnd@arndb.de>,
Catalin Marinas <catalin.marinas@arm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-arch@vger.kernel.org, linux-riscv@lists.infradead.org,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Mike Rapoport <rppt@kernel.org>, Nick Hu <nickhu@andestech.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Rob Herring <robh@kernel.org>,
Steven Price <steven.price@arm.com>,
Will Deacon <will@kernel.org>, Zong Li <zong.li@sifive.com>,
Ganapatrao Kulkarni <gkulkarni@cavium.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [RFC/RFT PATCH 6/6] riscv: Add numa support for riscv64 platform
Date: Fri, 14 Aug 2020 16:21:41 -0700 [thread overview]
Message-ID: <0d5046a4-8b7e-6279-ccd2-e02b2a091139@infradead.org> (raw)
In-Reply-To: <20200814214725.28818-7-atish.patra@wdc.com>
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
prev parent reply other threads:[~2020-08-14 23:22 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-14 21:47 [RFC/RFT PATCH 0/6] Unify NUMA implementation between ARM64 & RISC-V Atish Patra
2020-08-14 21:47 ` [RFC/RFT PATCH 1/6] numa: Move numa implementation to common code Atish Patra
2020-08-14 23:19 ` Randy Dunlap
2020-08-19 3:18 ` Anshuman Khandual
2020-08-19 19:18 ` Atish Patra
2020-08-20 3:20 ` Anshuman Khandual
2020-08-21 21:58 ` Atish Patra
2020-08-28 9:13 ` Jonathan Cameron
2020-08-28 9:22 ` Jonathan Cameron
2020-08-29 0:31 ` Atish Patra
2020-08-14 21:47 ` [RFC/RFT PATCH 2/6] arm64, numa: Change the numa init function name to be generic Atish Patra
2020-08-28 9:35 ` Jonathan Cameron
2020-08-29 0:39 ` Atish Patra
2020-08-14 21:47 ` [RFC/RFT PATCH 3/6] arm64, numa: Move pcibus_to_node definition to generic numa code Atish Patra
2020-08-28 9:48 ` Jonathan Cameron
2020-08-28 16:15 ` Bjorn Helgaas
2020-08-29 1:11 ` Atish Patra
2020-08-30 2:54 ` Bjorn Helgaas
2020-08-30 7:22 ` Atish Patra
2020-08-14 21:47 ` [RFC/RFT PATCH 4/6] riscv: Separate memory init from paging init Atish Patra
2020-08-14 21:47 ` [RFC/RFT PATCH 5/6] riscv: Add support pte_protnone and pmd_protnone if CONFIG_NUMA_BALANCING Atish Patra
2020-08-14 21:47 ` [RFC/RFT PATCH 6/6] riscv: Add numa support for riscv64 platform Atish Patra
2020-08-14 23:21 ` Randy Dunlap [this message]
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