tree 7d4afe7f60efb0a219d0fa9f78c849256e7ab64b
parent eabc9764ebdcbc25b3688db9bc8eee59db34ebf7
author Borislav Petkov <bp@suse.de> 1529660051 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1534347447 +0200

x86/CPU/AMD: Move TOPOEXT reenablement before reading smp_num_siblings

commit 7ce2f0393ea2396142b7faf6ee9b1f3676d08a5f upstream.

The TOPOEXT reenablement is a workaround for broken BIOSen which didn't
enable the CPUID bit. amd_get_topology_early(), however, relies on
that bit being set so that it can read out the CPUID leaf and set
smp_num_siblings properly.

Move the reenablement up to early_init_amd(). While at it, simplify
amd_get_topology_early().

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>