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(parent: b4287df) | patch
tile: support delivering NMIs for multicore backtrace
authorChris Metcalf <cmetcalf@ezchip.com>
Mon, 4 May 2015 21:26:35 +0000 (17:26 -0400)
committerChris Metcalf <cmetcalf@ezchip.com>
Mon, 11 May 2015 15:22:31 +0000 (11:22 -0400)
commite5701b74ccfdbbb0b4d9abcc7d0c569bf5e5375b
tree12fd2d5402bea262d4a191504f3ad25b5263ae3atree | snapshot (tar.gz zip)
parentb4287df82991ca608f44d7ac12ad9b3bc39d5baacommit | diff
tile: support delivering NMIs for multicore backtrace

A new hypervisor service was added some time ago (MDE 4.2.1 or
later, or MDE 4.3 or later) that allows cores to request NMIs
to be delivered to other cores.  Use this facility to deliver
a request that causes a backtrace to be generated on each core,
and hook it into the magic SysRq functionality.

Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
arch/tile/include/asm/irq.h diff | blob | blame | history
arch/tile/include/asm/traps.h diff | blob | blame | history
arch/tile/include/hv/hypervisor.h diff | blob | blame | history
arch/tile/kernel/hvglue.S diff | blob | blame | history
arch/tile/kernel/hvglue_trace.c diff | blob | blame | history
arch/tile/kernel/intvec_64.S diff | blob | blame | history
arch/tile/kernel/process.c diff | blob | blame | history
arch/tile/kernel/traps.c diff | blob | blame | history