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/openbmc/linux/arch/powerpc/platforms/pseries/
H A Dhotplug-cpu.cdiff 8dbce53cc249a76e9450708d291fce5a7e29c6a1 Sun Feb 28 20:58:09 CST 2010 Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> powerpc: Reset kernel stack on cpu online from cede state

Cpu hotplug (offline) without dlpar operation will place cpu
in cede state and the extended_cede_processor() function will
return when resumed.

Kernel stack pointer needs to be reset before
start_secondary() is called to continue the online operation.

Added new function start_secondary_resume() to do the above
steps.

Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
/openbmc/linux/arch/powerpc/kernel/
H A Dhead_64.Sdiff 8dbce53cc249a76e9450708d291fce5a7e29c6a1 Sun Feb 28 20:58:09 CST 2010 Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> powerpc: Reset kernel stack on cpu online from cede state

Cpu hotplug (offline) without dlpar operation will place cpu
in cede state and the extended_cede_processor() function will
return when resumed.

Kernel stack pointer needs to be reset before
start_secondary() is called to continue the online operation.

Added new function start_secondary_resume() to do the above
steps.

Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>