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Commit 5d8614cc authored by Will Deacon's avatar Will Deacon Committed by Russell King
Browse files

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: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 75216859

arch/arm/kernel/kgdb.c

+13 −0
Original line number Diff line number Diff line
@@ -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.

 *