From: Barry Song <song.bao.hua@hisilicon.com>
To: <corbet@lwn.net>, <linux-doc@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>, <linux-riscv@lists.infradead.org>,
"Barry Song" <song.bao.hua@hisilicon.com>,
Mel Gorman <mgorman@suse.de>,
"Paul Walmsley" <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
"Paul E. McKenney" <paulmck@kernel.org>,
Randy Dunlap <rdunlap@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
"Mauro Carvalho Chehab" <mchehab+huawei@kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Mike Kravetz <mike.kravetz@oracle.com>,
"Peter Zijlstra" <peterz@infradead.org>
Subject: [PATCH] Documentation/admin-guide: kernel-parameters: correct the architectures for numa_balancing
Date: Tue, 2 Mar 2021 21:41:59 +1300 [thread overview]
Message-ID: <20210302084159.33688-1-song.bao.hua@hisilicon.com> (raw)
X86 isn't the only architecture supporting NUMA_BALANCING. ARM64, PPC,
S390 and RISCV also support it:
arch$ git grep NUMA_BALANCING
arm64/Kconfig: select ARCH_SUPPORTS_NUMA_BALANCING
arm64/configs/defconfig:CONFIG_NUMA_BALANCING=y
arm64/include/asm/pgtable.h:#ifdef CONFIG_NUMA_BALANCING
powerpc/configs/powernv_defconfig:CONFIG_NUMA_BALANCING=y
powerpc/configs/ppc64_defconfig:CONFIG_NUMA_BALANCING=y
powerpc/configs/pseries_defconfig:CONFIG_NUMA_BALANCING=y
powerpc/include/asm/book3s/64/pgtable.h:#ifdef CONFIG_NUMA_BALANCING
powerpc/include/asm/book3s/64/pgtable.h:#ifdef CONFIG_NUMA_BALANCING
powerpc/include/asm/book3s/64/pgtable.h:#endif /* CONFIG_NUMA_BALANCING */
powerpc/include/asm/book3s/64/pgtable.h:#ifdef CONFIG_NUMA_BALANCING
powerpc/include/asm/book3s/64/pgtable.h:#endif /* CONFIG_NUMA_BALANCING */
powerpc/include/asm/nohash/pgtable.h:#ifdef CONFIG_NUMA_BALANCING
powerpc/include/asm/nohash/pgtable.h:#endif /* CONFIG_NUMA_BALANCING */
powerpc/platforms/Kconfig.cputype: select ARCH_SUPPORTS_NUMA_BALANCING
riscv/Kconfig: select ARCH_SUPPORTS_NUMA_BALANCING
riscv/include/asm/pgtable.h:#ifdef CONFIG_NUMA_BALANCING
s390/Kconfig: select ARCH_SUPPORTS_NUMA_BALANCING
s390/configs/debug_defconfig:CONFIG_NUMA_BALANCING=y
s390/configs/defconfig:CONFIG_NUMA_BALANCING=y
s390/include/asm/pgtable.h:#ifdef CONFIG_NUMA_BALANCING
x86/Kconfig: select ARCH_SUPPORTS_NUMA_BALANCING if X86_64
x86/include/asm/pgtable.h:#ifdef CONFIG_NUMA_BALANCING
x86/include/asm/pgtable.h:#endif /* CONFIG_NUMA_BALANCING */
On the other hand, setup_numabalancing() is implemented in mm/mempolicy.c
which doesn't depend on architectures.
Cc: Mel Gorman <mgorman@suse.de>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
---
Documentation/admin-guide/kernel-parameters.rst | 1 +
Documentation/admin-guide/kernel-parameters.txt | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/kernel-parameters.rst b/Documentation/admin-guide/kernel-parameters.rst
index 1132796a8d96..24302cad174a 100644
--- a/Documentation/admin-guide/kernel-parameters.rst
+++ b/Documentation/admin-guide/kernel-parameters.rst
@@ -140,6 +140,7 @@ parameter is applicable::
PPT Parallel port support is enabled.
PS2 Appropriate PS/2 support is enabled.
RAM RAM disk support is enabled.
+ RISCV RISCV architecture is enabled.
RDT Intel Resource Director Technology.
S390 S390 architecture is enabled.
SCSI Appropriate SCSI support is enabled.
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 04545725f187..371a02ae1e21 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3472,7 +3472,8 @@
nr_uarts= [SERIAL] maximum number of UARTs to be registered.
- numa_balancing= [KNL,X86] Enable or disable automatic NUMA balancing.
+ numa_balancing= [KNL,ARM64,PPC,RISCV,S390,X86] Enable or disable automatic
+ NUMA balancing.
Allowed values are enable and disable
numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.
--
2.25.1
next reply other threads:[~2021-03-02 9:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-02 8:41 Barry Song [this message]
2021-03-04 2:26 ` [PATCH] Documentation/admin-guide: kernel-parameters: correct the architectures for numa_balancing Palmer Dabbelt
2021-03-09 0:19 ` Jonathan Corbet
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