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Commit 1a8e6118 authored Feb 28, 2013 by Dietmar Eggemann Committed by Russell King Mar 03, 2013

ARM: 7662/1: hw_breakpoint: reset debug logic on secondary CPUs in s2ram resume



We must mask out the CPU_TASKS_FROZEN bit so that reset_ctrl_regs is
also called on a secondary CPU during s2ram resume, where only the boot
CPU will receive the PM_EXIT notification.

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent 89c7e4b8

arch/arm/kernel/hw_breakpoint.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -1023,7 +1023,7 @@ static void reset_ctrl_regs(void *unused)
	static int __cpuinit dbg_reset_notify(struct notifier_block *self,		static int __cpuinit dbg_reset_notify(struct notifier_block *self,
	unsigned long action, void *cpu)		unsigned long action, void *cpu)
	{		{
	if (action == CPU_ONLINE)		if ((action & ~CPU_TASKS_FROZEN) == CPU_ONLINE)
	smp_call_function_single((int)cpu, reset_ctrl_regs, NULL, 1);		smp_call_function_single((int)cpu, reset_ctrl_regs, NULL, 1);

	return NOTIFY_OK;		return NOTIFY_OK;