linux-kernel - [PATCH 4/4] arm64: kconfig: allow support for memory failure handling

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Message-Id: <20170330163849.18402-5-punit.agrawal@arm.com>
Date:   Thu, 30 Mar 2017 17:38:49 +0100
From:   Punit Agrawal <punit.agrawal@....com>
To:     catalin.marinas@....com, will.deacon@....com,
        akpm@...ux-foundation.org
Cc:     "Jonathan (Zhixiong) Zhang" <zjzhang@...eaurora.org>,
        linux-mm@...ck.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, tbaicar@...eaurora.org,
        kirill.shutemov@...ux.intel.com, mike.kravetz@...cle.com,
        Punit Agrawal <punit.agrawal@....com>
Subject: [PATCH 4/4] arm64: kconfig: allow support for memory failure handling

From: "Jonathan (Zhixiong) Zhang" <zjzhang@...eaurora.org>

If ACPI_APEI and MEMORY_FAILURE is configured, select
ACPI_APEI_MEMORY_FAILURE. This enables memory failure recovery
when such memory failure is reported through ACPI APEI. APEI
(ACPI Platform Error Interfaces) provides a means for the
platform to convey error information to the kernel.
APEI bits

Declare ARCH_SUPPORTS_MEMORY_FAILURE, as arm64 does support
memory failure recovery attempt.

Signed-off-by: Jonathan (Zhixiong) Zhang <zjzhang@...eaurora.org>
Signed-off-by: Tyler Baicar <tbaicar@...eaurora.org>
Signed-off-by: Punit Agrawal <punit.agrawal@....com>
---
 arch/arm64/Kconfig        | 1 +
 drivers/acpi/apei/Kconfig | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 3741859765cf..993a5fd85452 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -19,6 +19,7 @@ config ARM64
 	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_USE_CMPXCHG_LOCKREF
+	select ARCH_SUPPORTS_MEMORY_FAILURE
 	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_SUPPORTS_NUMA_BALANCING
 	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig
index b0140c8fc733..6d9a812fd3f9 100644
--- a/drivers/acpi/apei/Kconfig
+++ b/drivers/acpi/apei/Kconfig
@@ -9,6 +9,7 @@ config ACPI_APEI
 	select MISC_FILESYSTEMS
 	select PSTORE
 	select UEFI_CPER
+	select ACPI_APEI_MEMORY_FAILURE if MEMORY_FAILURE
 	depends on HAVE_ACPI_APEI
 	help
 	  APEI allows to report errors (for example from the chipset)
-- 
2.11.0