From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ganapatrao Kulkarni Subject: [PATCH v10 6/8] arm64, mm, numa: Adding numa balancing support for arm64. Date: Tue, 2 Feb 2016 15:39:21 +0530 Message-ID: <1454407763-1017-7-git-send-email-gkulkarni@caviumnetworks.com> References: <1454407763-1017-1-git-send-email-gkulkarni@caviumnetworks.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1454407763-1017-1-git-send-email-gkulkarni@caviumnetworks.com> Sender: linux-sh-owner@vger.kernel.org To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-ia64@vger.kernel.org, linux-metag@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-arch@vger.kernel.org, Will.Deacon@arm.com, catalin.marinas@arm.com, robh+dt@kernel.org, mark.rutland@arm.com, grant.likely@linaro.org, leif.lindholm@linaro.org, rfranz@cavium.com, ard.biesheuvel@linaro.org, msalter@redhat.com, steve.capper@linaro.org, hanjun.guo@linaro.org, al.stone@linaro.org, arnd@arndb.de, pawel.moll@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, rjw@rjwysocki.net, lenb@kernel.org, marc.zyngier@arm.com, lorenzo.pieralisi@arm.com, bhelgaas@google.com, tony.luck@intel.com, fenghua.yu@intel.com, james.hog Cc: gpkulkarni@gmail.com List-Id: linux-arch.vger.kernel.org enabled numa balancing for arm64 platforms. added pte, pmd protnone helpers for use by automatic NUMA balancing. Reviewed-by: Robert Richter Signed-off-by: Ganapatrao Kulkarni --- arch/arm64/Kconfig | 1 + arch/arm64/include/asm/pgtable.h | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index fcf3950..8a7c02a 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -11,6 +11,7 @@ config ARM64 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_USE_CMPXCHG_LOCKREF select ARCH_SUPPORTS_ATOMIC_RMW + select ARCH_SUPPORTS_NUMA_BALANCING if NUMA select ARCH_WANT_OPTIONAL_GPIOLIB select ARCH_WANT_COMPAT_IPC_PARSE_VERSION select ARCH_WANT_FRAME_POINTERS diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 2d545d7a..24ce546 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -347,6 +347,24 @@ static inline pgprot_t mk_sect_prot(pgprot_t prot) return __pgprot(pgprot_val(prot) & ~PTE_TABLE_BIT); } +#ifdef CONFIG_NUMA_BALANCING + +/* + * These work without NUMA balancing but the kernel does not care. See the + * comment in include/asm-generic/pgtable.h + */ +static inline int pte_protnone(pte_t pte) +{ + return ((pte_val(pte) & (PTE_VALID | PTE_PROT_NONE)) == PTE_PROT_NONE); +} + +static inline int pmd_protnone(pmd_t pmd) +{ + return pte_protnone(pmd_pte(pmd)); +} + +#endif /* CONFIG_NUMA_BALANCING */ + /* * THP definitions. */ -- 1.8.1.4 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-bn1bon0069.outbound.protection.outlook.com ([157.56.111.69]:50528 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754692AbcBBKLh (ORCPT ); Tue, 2 Feb 2016 05:11:37 -0500 From: Ganapatrao Kulkarni Subject: [PATCH v10 6/8] arm64, mm, numa: Adding numa balancing support for arm64. Date: Tue, 2 Feb 2016 15:39:21 +0530 Message-ID: <1454407763-1017-7-git-send-email-gkulkarni@caviumnetworks.com> In-Reply-To: <1454407763-1017-1-git-send-email-gkulkarni@caviumnetworks.com> References: <1454407763-1017-1-git-send-email-gkulkarni@caviumnetworks.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-ia64@vger.kernel.org, linux-metag@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-arch@vger.kernel.org, Will.Deacon@arm.com, catalin.marinas@arm.com, robh+dt@kernel.org, mark.rutland@arm.com, grant.likely@linaro.org, leif.lindholm@linaro.org, rfranz@cavium.com, ard.biesheuvel@linaro.org, msalter@redhat.com, steve.capper@linaro.org, hanjun.guo@linaro.org, al.stone@linaro.org, arnd@arndb.de, pawel.moll@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, rjw@rjwysocki.net, lenb@kernel.org, marc.zyngier@arm.com, lorenzo.pieralisi@arm.com, bhelgaas@google.com, tony.luck@intel.com, fenghua.yu@intel.com, james.hogan@imgtec.com, benh@kernel.crashing.org, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, jonathan@jonmasters.org, rrichter@cavium.com, Prasun.Kapoor@caviumnetworks.com Cc: gpkulkarni@gmail.com Message-ID: <20160202100921.fG8uxmAZG7egp9VCj7o7cjeP3VdlhauMar3NTi8QXjM@z> enabled numa balancing for arm64 platforms. added pte, pmd protnone helpers for use by automatic NUMA balancing. Reviewed-by: Robert Richter Signed-off-by: Ganapatrao Kulkarni --- arch/arm64/Kconfig | 1 + arch/arm64/include/asm/pgtable.h | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index fcf3950..8a7c02a 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -11,6 +11,7 @@ config ARM64 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_USE_CMPXCHG_LOCKREF select ARCH_SUPPORTS_ATOMIC_RMW + select ARCH_SUPPORTS_NUMA_BALANCING if NUMA select ARCH_WANT_OPTIONAL_GPIOLIB select ARCH_WANT_COMPAT_IPC_PARSE_VERSION select ARCH_WANT_FRAME_POINTERS diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 2d545d7a..24ce546 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -347,6 +347,24 @@ static inline pgprot_t mk_sect_prot(pgprot_t prot) return __pgprot(pgprot_val(prot) & ~PTE_TABLE_BIT); } +#ifdef CONFIG_NUMA_BALANCING + +/* + * These work without NUMA balancing but the kernel does not care. See the + * comment in include/asm-generic/pgtable.h + */ +static inline int pte_protnone(pte_t pte) +{ + return ((pte_val(pte) & (PTE_VALID | PTE_PROT_NONE)) == PTE_PROT_NONE); +} + +static inline int pmd_protnone(pmd_t pmd) +{ + return pte_protnone(pmd_pte(pmd)); +} + +#endif /* CONFIG_NUMA_BALANCING */ + /* * THP definitions. */ -- 1.8.1.4