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authorWill Deacon <will.deacon@arm.com>2010-03-12 11:03:58 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-03-15 14:33:04 +0000
commit5d8614cc5d6c5c02b7995ed97303481d4e3a8cc7 (patch)
treeee5015f229e3ef7e519e01585725a6301d49e609 /arch/arm/kernel/kgdb.c
parent75216859d96f66856a0ee78c2de5b02115ff65f3 (diff)
downloadlinux-sh-5d8614cc5d6c5c02b7995ed97303481d4e3a8cc7.tar.gz
ARM: 5989/1: ARM: KGDB: add support for SMP platforms
To support SMP platforms, KGDB requires the architecture backend to implement the kgdb_roundup_cpus function. This patch, taken against 2.6.33, implements the function for ARM based on the MIPS port. Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Jean-Michel Hautbois <jhautbois@gmail.com> Cc: KGDB Mailing List <kgdb-bugreport@lists.sourceforge.net> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/kgdb.c')
-rw-r--r--arch/arm/kernel/kgdb.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/kernel/kgdb.c b/arch/arm/kernel/kgdb.c
index ba8ccfede964..a5b846b9895d 100644
--- a/arch/arm/kernel/kgdb.c
+++ b/arch/arm/kernel/kgdb.c
@@ -9,6 +9,7 @@
* Authors: George Davis <davis_g@mvista.com>
* Deepak Saxena <dsaxena@plexity.net>
*/
+#include <linux/irq.h>
#include <linux/kgdb.h>
#include <asm/traps.h>
@@ -158,6 +159,18 @@ static struct undef_hook kgdb_compiled_brkpt_hook = {
.fn = kgdb_compiled_brk_fn
};
+static void kgdb_call_nmi_hook(void *ignored)
+{
+ kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs());
+}
+
+void kgdb_roundup_cpus(unsigned long flags)
+{
+ local_irq_enable();
+ smp_call_function(kgdb_call_nmi_hook, NULL, 0);
+ local_irq_disable();
+}
+
/**
* kgdb_arch_init - Perform any architecture specific initalization.
*