edac_mce: Add an interface driver to report mce errors via edac (696e409d) · Commits · 戴 / test

arch/x86/kernel/cpu/mcheck/mce.c

+10 −0

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		@@ -36,6 +36,7 @@
		#include <linux/fs.h>
		#include <linux/mm.h>
		#include <linux/debugfs.h>
		#include <linux/edac_mce.h>

		#include <asm/processor.h>
		#include <asm/hw_irq.h>
		@@ -168,6 +169,15 @@ void mce_log(struct mce *mce)
		for (;;) {
		entry = rcu_dereference_check_mce(mcelog.next);
		for (;;) {
		/*
		* If edac_mce is enabled, it will check the error type
		* and will process it, if it is a known error.
		* Otherwise, the error will be sent through mcelog
		* interface
		*/
		if (edac_mce_parse(mce))
		return;

		/*
		* When the buffer fills up discard new entries.
		* Assume that the earlier errors are the more

+7 −1

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		@@ -69,6 +69,9 @@ config EDAC_MM_EDAC
		occurred so that a particular failing memory module can be
		replaced. If unsure, select 'Y'.

		config EDAC_MCE
		tristate

		config EDAC_AMD64
		tristate "AMD64 (Opteron, Athlon64) K8, F10h, F11h"
		depends on EDAC_MM_EDAC && K8_NB && X86_64 && PCI && EDAC_DECODE_MCE
		@@ -169,9 +172,12 @@ config EDAC_I5400
		config EDAC_I7CORE
		tristate "Intel i7 Core (Nehalem) processors"
		depends on EDAC_MM_EDAC && PCI && X86
		select EDAC_MCE
		help
		Support for error detection and correction the Intel
		i7 Core (Nehalem) Integrated Memory Controller
		i7 Core (Nehalem) Integrated Memory Controller that exists on
		newer processors like i7 Core, i7 Core Extreme, Xeon 35xx
		and Xeon 55xx processors.

		config EDAC_I82860
		tristate "Intel 82860"

+1 −0

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		@@ -8,6 +8,7 @@

		obj-$(CONFIG_EDAC) := edac_stub.o
		obj-$(CONFIG_EDAC_MM_EDAC) += edac_core.o
		obj-$(CONFIG_EDAC_MCE) += edac_mce.o

		edac_core-objs := edac_mc.o edac_device.o edac_mc_sysfs.o edac_pci_sysfs.o
		edac_core-objs += edac_module.o edac_device_sysfs.o

0 → 100644

+58 −0

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		/* Provides edac interface to mcelog events
		*
		* This file may be distributed under the terms of the
		* GNU General Public License version 2.
		*
		* Copyright (c) 2009 by:
		* Mauro Carvalho Chehab <mchehab@redhat.com>
		*
		* Red Hat Inc. http://www.redhat.com
		*/

		#include <linux/module.h>
		#include <linux/edac_mce.h>
		#include <asm/mce.h>

		int edac_mce_enabled;
		EXPORT_SYMBOL_GPL(edac_mce_enabled);


		/*
		* Extension interface
		*/

		static LIST_HEAD(edac_mce_list);
		static DEFINE_MUTEX(edac_mce_lock);

		int edac_mce_register(struct edac_mce *edac_mce)
		{
		mutex_lock(&edac_mce_lock);
		list_add_tail(&edac_mce->list, &edac_mce_list);
		mutex_unlock(&edac_mce_lock);
		return 0;
		}
		EXPORT_SYMBOL(edac_mce_register);

		void edac_mce_unregister(struct edac_mce *edac_mce)
		{
		mutex_lock(&edac_mce_lock);
		list_del(&edac_mce->list);
		mutex_unlock(&edac_mce_lock);
		}
		EXPORT_SYMBOL(edac_mce_unregister);



		int edac_mce_queue(struct mce *mce)
		{
		struct edac_mce *edac_mce;

		list_for_each_entry(edac_mce, &edac_mce_list, list) {
		if (edac_mce->check_error(edac_mce->priv, mce))
		return 1;
		}

		/* Nobody queued the error */
		return 0;
		}
		EXPORT_SYMBOL_GPL(edac_mce_queue);

0 → 100644

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		/* Provides edac interface to mcelog events
		*
		* This file may be distributed under the terms of the
		* GNU General Public License version 2.
		*
		* Copyright (c) 2009 by:
		* Mauro Carvalho Chehab <mchehab@redhat.com>
		*
		* Red Hat Inc. http://www.redhat.com
		*/

		#if defined(CONFIG_EDAC_MCE) \|\| \
		(defined(CONFIG_EDAC_MCE_MODULE) && defined(MODULE))

		#include <asm/mce.h>
		#include <linux/list.h>

		struct edac_mce {
		struct list_head list;

		void *priv;
		int (check_error)(void priv, struct mce *mce);
		};

		int edac_mce_register(struct edac_mce *edac_mce);
		void edac_mce_unregister(struct edac_mce *edac_mce);
		int edac_mce_parse(struct mce *mce);

		#else
		#define edac_mce_parse(mce) (0)
		#endif