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Commit 60ffdb36 authored by Graf Yang's avatar Graf Yang Committed by Mike Frysinger
Browse files

Blackfin: implement nmi_watchdog for SMP on BF561 



Signed-off-by: default avatarGraf Yang <graf.yang@analog.com>
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent 726e9656

arch/blackfin/Kconfig.debug

+9 −0
Original line number Diff line number Diff line
@@ -238,6 +238,15 @@ config EARLY_PRINTK 
	  all of this lives in the init section and is thrown away after the

	  kernel boots completely.



config NMI_WATCHDOG

	bool "Enable NMI watchdog to help debugging lockup on SMP"

	default n

	depends on (SMP && !BFIN_SCRATCH_REG_RETN)

	help

	  If any CPU in the system does not execute the period local timer

	  interrupt for more than 5 seconds, then the NMI handler dumps debug

	  information. This information can be used to debug the lockup.



config CPLB_INFO

	bool "Display the CPLB information"

	help

arch/blackfin/include/asm/irq.h

+4 −0
Original line number Diff line number Diff line
@@ -38,4 +38,8 @@ 


#include <asm-generic/irq.h>



#ifdef CONFIG_NMI_WATCHDOG

# define ARCH_HAS_NMI_WATCHDOG

#endif



#endif				/* _BFIN_IRQ_H_ */

arch/blackfin/include/asm/nmi.h

0 → 100644
+12 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2010 Analog Devices Inc.

 *

 * Licensed under the GPL-2

 */



#ifndef _BFIN_NMI_H_

#define _BFIN_NMI_H_



#include <linux/nmi.h>



#endif

arch/blackfin/include/asm/smp.h

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ extern char coreb_trampoline_start, coreb_trampoline_end; 
struct corelock_slot {

	int lock;

};

extern struct corelock_slot corelock;



void smp_icache_flush_range_others(unsigned long start,

				   unsigned long end);

arch/blackfin/kernel/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ obj-$(CONFIG_CPLB_INFO) += cplbinfo.o 
obj-$(CONFIG_MODULES)                += module.o

obj-$(CONFIG_KGDB)                   += kgdb.o

obj-$(CONFIG_KGDB_TESTS)             += kgdb_test.o

obj-$(CONFIG_NMI_WATCHDOG)           += nmi.o

obj-$(CONFIG_EARLY_PRINTK)           += early_printk.o

obj-$(CONFIG_EARLY_PRINTK)           += shadow_console.o

obj-$(CONFIG_STACKTRACE)             += stacktrace.o