powerpc/powernv: Ignore smt-enabled on Power8 and later

Browse source

Starting with POWER8, the subcore logic relies on all threads of a core
being booted so that they can participate in split mode switches. So on
those machines we ignore the smt_enabled_at_boot setting (smt-enabled on
the kernel command line).

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
[mpe: Update comment and change log to be more precise]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

...

This commit is contained in:

Greg Kurz 2014-12-12 12:37:40 +01:00 • committed by Michael Ellerman

parent 505e428374

commit d70a54e2d0

1 changed files with 15 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

16

arch/powerpc/platforms/powernv/smp.c

View file