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>
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@ -9,6 +9,7 @@
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* Authors: George Davis <davis_g@mvista.com>
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* Deepak Saxena <dsaxena@plexity.net>
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*/
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#include <linux/irq.h>
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#include <linux/kgdb.h>
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#include <asm/traps.h>
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@ -158,6 +159,18 @@ static struct undef_hook kgdb_compiled_brkpt_hook = {
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.fn = kgdb_compiled_brk_fn
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};
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static void kgdb_call_nmi_hook(void *ignored)
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{
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kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs());
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}
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void kgdb_roundup_cpus(unsigned long flags)
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{
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local_irq_enable();
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smp_call_function(kgdb_call_nmi_hook, NULL, 0);
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local_irq_disable();
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}
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/**
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* kgdb_arch_init - Perform any architecture specific initalization.
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*
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