]> git.openfabrics.org - ~shefty/rdma-dev.git/commitdiff
ARM: stop: execute platform callback from cpu_stop code
authorWill Deacon <will.deacon@arm.com>
Mon, 6 Jun 2011 14:49:23 +0000 (15:49 +0100)
committerWill Deacon <will.deacon@arm.com>
Mon, 12 Dec 2011 16:07:35 +0000 (16:07 +0000)
Sending IPI_CPU_STOP to a CPU causes it to execute a busy cpu_relax
loop forever. This makes it impossible to kexec successfully on an SMP
system since the secondary CPUs do not reset.

This patch adds a callback to platform_cpu_kill, defined when
CONFIG_HOTPLUG_CPU=y, from the ipi_cpu_stop handling code. This function
currently just returns 1 on all platforms that define it but allows them
to do something more sophisticated in the future.

Signed-off-by: Will Deacon <will.deacon@arm.com>

No differences found