tree 40771af138b90c55d7baa36c5257fbe16ddd5572
parent ebb299a51059017ec253bd30781a83d1f6e11b24
author Heiko Carstens <heiko.carstens@de.ibm.com> 1480754881 +0100
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1481091787 +0100

s390/smp: initialize cpu_present_mask in setup_arch

In order to be able to setup the cpu to node mappings early it is a
prerequisite to know which cpus are present. Therefore cpus must be
detected much earlier than before.

For sclp based cpu detection this requires yet another early sclp
call, since the system is not ready to use the regular interrupt and
memory allocations.

Reviewed-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>