tree e17acbd5d71608e4858227785e21d5b998de08ed
parent 112d243045c2b18f56b37334ee0f7faa01edc205
author Thomas Gleixner <tglx@linutronix.de> 1528239458 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1534349686 +0200

x86/cpu/AMD: Evaluate smp_num_siblings early

commit 1e1d7e25fd759eddf96d8ab39d0a90a1979b2d8c upstream

To support force disabling of SMT it's required to know the number of
thread siblings early. amd_get_topology() cannot be called before the APIC
driver is selected, so split out the part which initializes
smp_num_siblings and invoke it from amd_early_init().

[dwmw2: Backport to 4.9]

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>