From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Jonathan Corbet <corbet@lwn.net>,
Andrew Morton <akpm@linux-foundation.org>,
<linuxppc-dev@lists.ozlabs.org>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
<x86@kernel.org>, <linux-arm-kernel@lists.infradead.org>
Cc: Nicholas Piggin <npiggin@gmail.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Michael Ellerman <mpe@ellerman.id.au>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: [PATCH 2/3] arm64: Support huge vmalloc mappings
Date: Sun, 26 Dec 2021 16:39:11 +0800 [thread overview]
Message-ID: <20211226083912.166512-3-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20211226083912.166512-1-wangkefeng.wang@huawei.com>
This patch select HAVE_ARCH_HUGE_VMALLOC to let arm64 support huge
vmalloc mappings, it is disabled by default, use hugevmalloc=on to
enable it in some scenarios.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
Documentation/admin-guide/kernel-parameters.txt | 4 ++--
arch/arm64/Kconfig | 1 +
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 4107136097a6..235a23b08809 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1630,7 +1630,7 @@
precedence over memory_hotplug.memmap_on_memory.
- hugevmalloc= [PPC] Reguires CONFIG_HAVE_ARCH_HUGE_VMALLOC
+ hugevmalloc= [KNL,PPC,ARM64] Reguires CONFIG_HAVE_ARCH_HUGE_VMALLOC
Format: { on | off }
Default set by CONFIG_HUGE_VMALLOC_DEFAULT_ENABLED.
@@ -3415,7 +3415,7 @@
nohugeiomap [KNL,X86,PPC,ARM64] Disable kernel huge I/O mappings.
- nohugevmalloc [PPC] Disable kernel huge vmalloc mappings.
+ nohugevmalloc [KNL,PPC,ARM64] Disable kernel huge vmalloc mappings.
nosmt [KNL,S390] Disable symmetric multithreading (SMT).
Equivalent to smt=1.
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c4207cf9bb17..6cedb06b4cab 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -143,6 +143,7 @@ config ARM64
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_BITREVERSE
select HAVE_ARCH_COMPILER_H
+ select HAVE_ARCH_HUGE_VMALLOC
select HAVE_ARCH_HUGE_VMAP
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_JUMP_LABEL_RELATIVE
--
2.26.2
WARNING: multiple messages have this Message-ID (diff)
From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Jonathan Corbet <corbet@lwn.net>,
Andrew Morton <akpm@linux-foundation.org>,
<linuxppc-dev@lists.ozlabs.org>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
<x86@kernel.org>, <linux-arm-kernel@lists.infradead.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Nicholas Piggin <npiggin@gmail.com>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Paul Mackerras <paulus@samba.org>,
Thomas Gleixner <tglx@linutronix.de>,
Will Deacon <will@kernel.org>
Subject: [PATCH 2/3] arm64: Support huge vmalloc mappings
Date: Sun, 26 Dec 2021 16:39:11 +0800 [thread overview]
Message-ID: <20211226083912.166512-3-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20211226083912.166512-1-wangkefeng.wang@huawei.com>
This patch select HAVE_ARCH_HUGE_VMALLOC to let arm64 support huge
vmalloc mappings, it is disabled by default, use hugevmalloc=on to
enable it in some scenarios.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
Documentation/admin-guide/kernel-parameters.txt | 4 ++--
arch/arm64/Kconfig | 1 +
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 4107136097a6..235a23b08809 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1630,7 +1630,7 @@
precedence over memory_hotplug.memmap_on_memory.
- hugevmalloc= [PPC] Reguires CONFIG_HAVE_ARCH_HUGE_VMALLOC
+ hugevmalloc= [KNL,PPC,ARM64] Reguires CONFIG_HAVE_ARCH_HUGE_VMALLOC
Format: { on | off }
Default set by CONFIG_HUGE_VMALLOC_DEFAULT_ENABLED.
@@ -3415,7 +3415,7 @@
nohugeiomap [KNL,X86,PPC,ARM64] Disable kernel huge I/O mappings.
- nohugevmalloc [PPC] Disable kernel huge vmalloc mappings.
+ nohugevmalloc [KNL,PPC,ARM64] Disable kernel huge vmalloc mappings.
nosmt [KNL,S390] Disable symmetric multithreading (SMT).
Equivalent to smt=1.
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c4207cf9bb17..6cedb06b4cab 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -143,6 +143,7 @@ config ARM64
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_BITREVERSE
select HAVE_ARCH_COMPILER_H
+ select HAVE_ARCH_HUGE_VMALLOC
select HAVE_ARCH_HUGE_VMAP
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_JUMP_LABEL_RELATIVE
--
2.26.2
WARNING: multiple messages have this Message-ID (diff)
From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Jonathan Corbet <corbet@lwn.net>,
Andrew Morton <akpm@linux-foundation.org>,
<linuxppc-dev@lists.ozlabs.org>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
<x86@kernel.org>, <linux-arm-kernel@lists.infradead.org>
Cc: Nicholas Piggin <npiggin@gmail.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Michael Ellerman <mpe@ellerman.id.au>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: [PATCH 2/3] arm64: Support huge vmalloc mappings
Date: Sun, 26 Dec 2021 16:39:11 +0800 [thread overview]
Message-ID: <20211226083912.166512-3-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20211226083912.166512-1-wangkefeng.wang@huawei.com>
This patch select HAVE_ARCH_HUGE_VMALLOC to let arm64 support huge
vmalloc mappings, it is disabled by default, use hugevmalloc=on to
enable it in some scenarios.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
Documentation/admin-guide/kernel-parameters.txt | 4 ++--
arch/arm64/Kconfig | 1 +
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 4107136097a6..235a23b08809 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1630,7 +1630,7 @@
precedence over memory_hotplug.memmap_on_memory.
- hugevmalloc= [PPC] Reguires CONFIG_HAVE_ARCH_HUGE_VMALLOC
+ hugevmalloc= [KNL,PPC,ARM64] Reguires CONFIG_HAVE_ARCH_HUGE_VMALLOC
Format: { on | off }
Default set by CONFIG_HUGE_VMALLOC_DEFAULT_ENABLED.
@@ -3415,7 +3415,7 @@
nohugeiomap [KNL,X86,PPC,ARM64] Disable kernel huge I/O mappings.
- nohugevmalloc [PPC] Disable kernel huge vmalloc mappings.
+ nohugevmalloc [KNL,PPC,ARM64] Disable kernel huge vmalloc mappings.
nosmt [KNL,S390] Disable symmetric multithreading (SMT).
Equivalent to smt=1.
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c4207cf9bb17..6cedb06b4cab 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -143,6 +143,7 @@ config ARM64
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_BITREVERSE
select HAVE_ARCH_COMPILER_H
+ select HAVE_ARCH_HUGE_VMALLOC
select HAVE_ARCH_HUGE_VMAP
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_JUMP_LABEL_RELATIVE
--
2.26.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-12-26 8:29 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-26 8:39 [PATCH 0/3] mm: support huge vmalloc mapping on arm64/x86 Kefeng Wang
2021-12-26 8:39 ` Kefeng Wang
2021-12-26 8:39 ` Kefeng Wang
2021-12-26 8:39 ` [PATCH 1/3] mm: vmalloc: Let user to control huge vmalloc default behavior Kefeng Wang
2021-12-26 8:39 ` Kefeng Wang
2021-12-26 8:39 ` Kefeng Wang
2021-12-26 8:33 ` Kefeng Wang
2021-12-26 8:33 ` Kefeng Wang
2021-12-26 8:33 ` Kefeng Wang
2021-12-26 17:36 ` Christophe Leroy
2021-12-26 17:36 ` Christophe Leroy
2021-12-27 1:44 ` Kefeng Wang
2021-12-27 1:44 ` Kefeng Wang
2021-12-27 3:19 ` Matthew Wilcox
2021-12-27 3:19 ` Matthew Wilcox
2021-12-27 3:19 ` Matthew Wilcox
2021-12-27 6:14 ` Kefeng Wang
2021-12-27 6:14 ` Kefeng Wang
2021-12-27 6:14 ` Kefeng Wang
2021-12-26 8:39 ` Kefeng Wang [this message]
2021-12-26 8:39 ` [PATCH 2/3] arm64: Support huge vmalloc mappings Kefeng Wang
2021-12-26 8:39 ` Kefeng Wang
2021-12-26 8:39 ` [PATCH 3/3] x86: " Kefeng Wang
2021-12-26 8:39 ` Kefeng Wang
2021-12-26 8:39 ` Kefeng Wang
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