Messages in this thread Patch in this message | | | From | Chris Metcalf <> | Date | Thu, 29 Mar 2012 15:59:11 -0400 | Subject | [PATCH] arch/tile: implement panic_smp_self_stop() |
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This allows the later-panicking tiles to wait in a lower power state until they get interrupted with an smp_send_stop().
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> --- arch/tile/kernel/smp.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c index f86887a..5b46a12 100644 --- a/arch/tile/kernel/smp.c +++ b/arch/tile/kernel/smp.c @@ -132,6 +132,12 @@ void smp_send_stop(void) send_IPI_allbutself(MSG_TAG_STOP_CPU); } +/* On panic, just wait; we may get an smp_send_stop() later on. */ +void panic_smp_self_stop(void) +{ + while (1) + asm("nap; nop"); +} /* * Dispatch code called from hv_message_intr() for HV_MSG_TILE hv messages. -- 1.6.5.2
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