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From: David Daney <ddaney.cavm@gmail.com>
To: Will Deacon <will.deacon@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	Kumar Gala <galak@codeaurora.org>,
	devicetree@vger.kernel.org,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Grant Likely <grant.likely@linaro.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Matt Fleming <matt@codeblueprint.co.uk>,
	linux-efi@vger.kernel.org,
	Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>,
	Robert Richter <rrichter@cavium.com>
Cc: linux-kernel@vger.kernel.org, David Daney <david.daney@cavium.com>
Subject: [PATCH v11 10/10] arm64, mm, numa: Add NUMA balancing support for arm64.
Date: Fri, 19 Feb 2016 17:13:19 -0800	[thread overview]
Message-ID: <1455930799-5371-11-git-send-email-ddaney.cavm@gmail.com> (raw)
In-Reply-To: <1455930799-5371-1-git-send-email-ddaney.cavm@gmail.com>

From: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>

Enable NUMA balancing for arm64 platforms.
Add pte, pmd protnone helpers for use by automatic NUMA balancing.

Reviewed-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/arm64/Kconfig               |  1 +
 arch/arm64/include/asm/pgtable.h | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 9f0972a..6e22503 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
 	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 bf464de..5af9db2 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -346,6 +346,21 @@ static inline pgprot_t mk_sect_prot(pgprot_t prot)
 	return __pgprot(pgprot_val(prot) & ~PTE_TABLE_BIT);
 }
 
+#ifdef CONFIG_NUMA_BALANCING
+/*
+ * 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
+
 /*
  * THP definitions.
  */
-- 
1.8.3.1

WARNING: multiple messages have this Message-ID (diff)
From: ddaney.cavm@gmail.com (David Daney)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v11 10/10] arm64, mm, numa: Add NUMA balancing support for arm64.
Date: Fri, 19 Feb 2016 17:13:19 -0800	[thread overview]
Message-ID: <1455930799-5371-11-git-send-email-ddaney.cavm@gmail.com> (raw)
In-Reply-To: <1455930799-5371-1-git-send-email-ddaney.cavm@gmail.com>

From: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>

Enable NUMA balancing for arm64 platforms.
Add pte, pmd protnone helpers for use by automatic NUMA balancing.

Reviewed-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/arm64/Kconfig               |  1 +
 arch/arm64/include/asm/pgtable.h | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 9f0972a..6e22503 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
 	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 bf464de..5af9db2 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -346,6 +346,21 @@ static inline pgprot_t mk_sect_prot(pgprot_t prot)
 	return __pgprot(pgprot_val(prot) & ~PTE_TABLE_BIT);
 }
 
+#ifdef CONFIG_NUMA_BALANCING
+/*
+ * 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
+
 /*
  * THP definitions.
  */
-- 
1.8.3.1

  parent reply	other threads:[~2016-02-20  1:14 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-20  1:13 [PATCH v11 00/10] arm64, numa: Add numa support for arm64 platforms David Daney
2016-02-20  1:13 ` David Daney
2016-02-20  1:13 ` David Daney
2016-02-20  1:13 ` [PATCH v11 01/10] of/fdt: make generic early_init_dt_add_memory_arch() a weak alias David Daney
2016-02-20  1:13   ` David Daney
2016-02-20  1:13 ` [PATCH v11 02/10] arm64: override generic version of early_init_dt_add_memory_arch() David Daney
2016-02-20  1:13   ` David Daney
2016-02-20  1:13 ` [PATCH v11 03/10] efi: move FDT handling to separate object file David Daney
2016-02-20  1:13   ` David Daney
2016-02-20  1:13 ` [PATCH v11 04/10] arm64/efi: move EFI /chosen node parsing before early FDT processing David Daney
2016-02-20  1:13   ` David Daney
2016-02-20  1:13 ` [PATCH v11 05/10] arm64/efi: ignore DT memory nodes instead of removing them David Daney
2016-02-20  1:13   ` David Daney
2016-02-20  1:13 ` [PATCH v11 06/10] arm64/efi: ignore DT memreserve entries " David Daney
2016-02-20  1:13   ` David Daney
2016-02-20  1:13 ` [PATCH v11 07/10] Documentation, dt, numa: dt bindings for NUMA David Daney
2016-02-20  1:13   ` David Daney
2016-02-20  1:13 ` [PATCH v11 08/10] dt, numa: Add NUMA dt binding implementation David Daney
2016-02-20  1:13   ` David Daney
2016-02-23 19:36   ` Rob Herring
2016-02-23 19:36     ` Rob Herring
2016-02-23 19:36     ` Rob Herring
2016-02-26  1:26     ` David Daney
2016-02-26  1:26       ` David Daney
2016-02-26  1:26       ` David Daney
2016-02-26 18:27       ` Will Deacon
2016-02-26 18:27         ` Will Deacon
2016-02-26 18:27         ` Will Deacon
2016-03-01 16:56         ` Rob Herring
2016-03-01 16:56           ` Rob Herring
2016-03-01 16:56           ` Rob Herring
2016-03-01 16:47       ` Rob Herring
2016-03-01 16:47         ` Rob Herring
2016-03-01 16:47         ` Rob Herring
2016-03-01 16:57         ` David Daney
2016-03-01 16:57           ` David Daney
2016-03-01 16:57           ` David Daney
2016-03-01 17:43           ` Rob Herring
2016-03-01 17:43             ` Rob Herring
2016-03-01 17:43             ` Rob Herring
2016-03-01 17:58             ` David Daney
2016-03-01 17:58               ` David Daney
2016-03-01 17:58               ` David Daney
2016-02-20  1:13 ` [PATCH v11 09/10] arm64, numa: Add NUMA support for arm64 platforms David Daney
2016-02-20  1:13   ` David Daney
2016-02-20  1:13   ` David Daney
2016-02-20  1:13 ` David Daney [this message]
2016-02-20  1:13   ` [PATCH v11 10/10] arm64, mm, numa: Add NUMA balancing support for arm64 David Daney
2016-02-20  8:20 ` [PATCH v11 00/10] arm64, numa: Add numa support for arm64 platforms Ard Biesheuvel
2016-02-20  8:20   ` Ard Biesheuvel
2016-02-20  8:20   ` Ard Biesheuvel
2016-02-20 10:39   ` Robert Richter
2016-02-20 10:39     ` Robert Richter
2016-02-20 10:39     ` Robert Richter
2016-02-20 10:44     ` Ard Biesheuvel
2016-02-20 10:44       ` Ard Biesheuvel
2016-02-20 10:44       ` Ard Biesheuvel

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