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powerpc/smp: More generic support for "soft hotplug"
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Mon, 19 Sep 2011 17:44:49 +0000 (17:44 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Tue, 20 Sep 2011 05:53:24 +0000 (15:53 +1000)
commitfb82b83970a32263698e54a8779d2ce88cd3b060
tree3f396a3225fa7eae960d9033926b00e751327577tree | snapshot (tar.gz zip)
parentb8bb922c680b7e21af2268bc8eec93b17f5b9ab8commit | diff
powerpc/smp: More generic support for "soft hotplug"

This adds more generic support for doing CPU hotplug with a simple
idle loop and no actual reset of the processors. The generic
smp_generic_kick_cpu() does the hotplug bringup trick if the PACA
shows that the CPU has already been started at boot and we provide
an accessor for the CPU state.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/include/asm/smp.h diff | blob | blame | history
arch/powerpc/kernel/smp.c diff | blob | blame | history
Motorola kernel-slsi