tree ddcfc17757a4355ea1d89e25268180c96cd21952
parent 6e306c5907a075ba6d46f6ee33c689abf4bfb733
author Yazen Ghannam <Yazen.Ghannam@amd.com> 1486291822 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1487114741 -0800

x86/CPU/AMD: Fix Zen SMT topology

commit 08b259631b5a1d912af4832847b5642f377d9101 upstream.

After:

  a33d331761bc ("x86/CPU/AMD: Fix Bulldozer topology")

our  SMT scheduling topology for Fam17h systems is broken, because
the ThreadId is included in the ApicId when SMT is enabled.

So, without further decoding cpu_core_id is unique for each thread
rather than the same for threads on the same core. This didn't affect
systems with SMT disabled. Make cpu_core_id be what it is defined to be.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170205105022.8705-2-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>