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[v2,0/3] Add support for frequency invariance to AMD EPYC Zen2

Message ID 20201110183054.15883-1-ggherdovich@suse.cz
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Series Add support for frequency invariance to AMD EPYC Zen2 | expand

Message

Giovanni Gherdovich Nov. 10, 2020, 6:30 p.m. UTC 
v1 at https://lore.kernel.org/lkml/20201110083936.31994-1-ggherdovich@suse.cz/

Changes wrt v1:

- made initialization safe under CPU hotplug.
  The function init_freq_invariance_cppc now lets only the first caller
  into init_freq_invariance().

Giovanni Gherdovich (2):
  x86, sched: Use midpoint of max_boost and max_P for frequency
    invariance on AMD EPYC
  x86: Print ratio freq_max/freq_base used in frequency invariance
    calculations

Nathan Fontenot (1):
  x86, sched: Calculate frequency invariance for AMD systems

 arch/x86/include/asm/topology.h |  8 ++++
 arch/x86/kernel/smpboot.c       | 84 +++++++++++++++++++++++++++++++--
 drivers/acpi/cppc_acpi.c        |  3 ++
 3 files changed, 90 insertions(+), 5 deletions(-)