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authorGraf Yang <graf.yang@analog.com>2010-01-20 13:56:24 +0300
committerMike Frysinger <vapier@gentoo.org>2010-03-09 08:30:49 +0300
commit60ffdb36547da2397d6cfefe9c752ebad16524f6 (patch)
treece188bc0ccd1d8d0e6ff0f49937dca95e1f571c0 /arch/blackfin/Kconfig.debug
parent726e96561e4704278bc5197238f6459e1a63aa77 (diff)
downloadlinux-60ffdb36547da2397d6cfefe9c752ebad16524f6.tar.xz
Blackfin: implement nmi_watchdog for SMP on BF561
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/Kconfig.debug')
-rw-r--r--arch/blackfin/Kconfig.debug9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/blackfin/Kconfig.debug b/arch/blackfin/Kconfig.debug
index 87f195ee2e06..1460d7b5edc1 100644
--- a/arch/blackfin/Kconfig.debug
+++ b/arch/blackfin/Kconfig.debug
@@ -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