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

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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>

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Borislav Petkov 2018-06-22 11:34:11 +02:00 • committed by Thomas Gleixner

parent 11e34e64e4

commit 7ce2f0393e

1 changed files with 17 additions and 20 deletions

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arch/x86/kernel/cpu/amd.c

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