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Merge "drivers: edac: Add panic notifier for kryo EDAC device"

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qctecmdr 2020-08-12 08:31:59 -07:00 • committed by Gerrit - the friendly Code Review server
commit 6f029619c3
1 changed files with 23 additions and 1 deletions
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24
drivers/edac/kryo_arm64_edac.c
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@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
*/
#include <linux/kernel.h>
@ -11,6 +11,7 @@
#include <linux/cpu.h>
#include <linux/cpu_pm.h>
#include <linux/interrupt.h>
#include <linux/notifier.h>
#include <linux/of_irq.h>
#include <asm/cputype.h>
@ -129,6 +130,7 @@ struct erp_drvdata {
struct edac_device_ctl_info *edev_ctl;
struct erp_drvdata __percpu *erp_cpu_drvdata;
struct notifier_block nb_pm;
struct notifier_block nb_panic;
int ppi;
};
@ -398,6 +400,23 @@ unlock:
spin_unlock_irqrestore(&local_handler_lock, flags);
}
static int kryo_cpu_panic_notify(struct notifier_block *this,
unsigned long event, void *ptr)
{
struct edac_device_ctl_info *edev_ctl =
panic_handler_drvdata->edev_ctl;
#ifdef CONFIG_EDAC_KRYO_ARM64_PANIC_ON_CE
edev_ctl->panic_on_ce = 0;
#endif
edev_ctl->panic_on_ue = 0;
kryo_check_l3_scu_error(edev_ctl);
kryo_check_l1_l2_ecc(edev_ctl);
return NOTIFY_OK;
}
static irqreturn_t kryo_l1_l2_handler(int irq, void *drvdata)
{
kryo_check_l1_l2_ecc(panic_handler_drvdata->edev_ctl);
@ -480,6 +499,9 @@ static int kryo_cpu_erp_probe(struct platform_device *pdev)
#endif
drv->edev_ctl->panic_on_ue = ARM64_ERP_PANIC_ON_UE;
drv->nb_pm.notifier_call = kryo_pmu_cpu_pm_notify;
drv->nb_panic.notifier_call = kryo_cpu_panic_notify;
atomic_notifier_chain_register(&panic_notifier_list,
&drv->nb_panic);
platform_set_drvdata(pdev, drv);
rc = edac_device_add_device(drv->edev_ctl);