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| author | Will Deacon <will.deacon@arm.com> | 2010-03-12 11:03:58 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-15 15:33:04 +0100 |
| commit | 5d8614cc5d6c5c02b7995ed97303481d4e3a8cc7 (patch) | |
| tree | ee5015f229e3ef7e519e01585725a6301d49e609 /arch/arm | |
| parent | ARM: 5990/1: ARM: use __armv5tej_mmu_cache_flush for V5TEJ instead of __armv4... (diff) | |
| download | linux-5d8614cc5d6c5c02b7995ed97303481d4e3a8cc7.tar.xz linux-5d8614cc5d6c5c02b7995ed97303481d4e3a8cc7.zip | |
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')
| -rw-r--r-- | arch/arm/kernel/kgdb.c | 13 |
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. * |