On Fri, Jan 17, 2014 at 10:18:52AM -0600, Steven J. Hill wrote: > From: "Steven J. Hill" <Steven.Hill@xxxxxxxxxx> > > Add CPU hotplug support for cores with a CM. > > Steven J. Hill (3): > MIPS: CMP: Add support for CPU hotplugging. > MIPS: CMP: Malta: Add support for CPU hotplugging. > MIPS: CMP: Malta: Enable CPU hotplug. > > arch/mips/Kconfig | 1 + > arch/mips/include/asm/amon.h | 1 + > arch/mips/include/asm/gcmpregs.h | 2 + > arch/mips/kernel/irq-gic.c | 6 +- > arch/mips/kernel/smp-cmp.c | 167 +++++++++++++++++++++++++++----------- > arch/mips/mti-malta/malta-amon.c | 107 ++++++++++++++++++++---- > arch/mips/mti-malta/malta-int.c | 2 +- > 7 files changed, 216 insertions(+), 70 deletions(-) > > -- > 1.7.10.4 > > No. As I've said internally a few times this is *not* what hotplug is meant to be. This doesn't actually make use of the CM/CPC to power down a core (and can't via the CMP framework/AMON interface). It is ultimately pointless and in my opinion should be replaced by proper hotplug (that actually powers down cores) built atop the CONFIG_MIPS_CPS implementation (that already moves the BEV) which I submitted a few days ago. Paul
