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Commit 77a20e0a authored by Yimin Peng's avatar Yimin Peng
Browse files

power: reset: cache flush before VM restart 



Make sure data concurrency in dram for crash dump.

Change-Id: I17a29c709d3b5df015aa8fd44d27db914e1682b2
Signed-off-by: default avatarYimin Peng <yiminp@codeaurora.org>
parent 1e8f2043

drivers/power/reset/msm-vm-poweroff.c

+9 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2019, The Linux Foundation. All rights reserved.

/* Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -20,6 +20,7 @@ 
#include <linux/delay.h>

#include <linux/of_address.h>



#include <asm/cacheflush.h>

#include <asm/system_misc.h>

#include <soc/qcom/watchdog.h>
@@ -41,6 +42,13 @@ static void do_vm_restart(enum reboot_mode reboot_mode, const char *cmd) 
{

	pr_notice("Going down for vm restart now\n");



	flush_cache_all();



	/*outer_flush_all is not supported by 64bit kernel*/

#ifndef CONFIG_ARM64

	outer_flush_all();

#endif



	if (in_panic)

		msm_trigger_wdog_bite();