linux-kernel - [PATCH 00/11] Support Intel® Turbo Boost Max Technology 3.0

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Date:   Thu, 18 Aug 2016 15:36:41 -0700
From:   Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     mingo@...hat.com, tglx@...utronix.de, hpa@...or.com,
        rjw@...ysocki.net, peterz@...radead.org
Cc:     x86@...nel.org, bp@...e.de, sudeep.holla@....com,
        ak@...ux.intel.com, linux-acpi@...r.kernel.org,
        linux-pm@...r.kernel.org, alexey.klimov@....com,
        viresh.kumar@...aro.org, akpm@...ux-foundation.org,
        linux-kernel@...r.kernel.org, lenb@...nel.org,
        tim.c.chen@...ux.intel.com, srinivas.pandruvada@...ux.intel.com,
        paul.gortmaker@...driver.com, jpoimboe@...hat.com,
        mcgrof@...nel.org, jgross@...e.com, robert.moore@...el.com,
        dvyukov@...gle.com, jeyu@...hat.com
Subject: [PATCH 00/11] Support Intel® Turbo Boost Max Technology 3.0

With Intel® Turbo Boost Max Technology 3.0 (ITMT), single-threaded performance is
optimized by identifying processor's fastest core and running critical workloads
on it.
Refere to:
http://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-max-technology.html

This patchset consist of all changes required to support ITMT feature:
- Enhance CPPC ACPI lib to support x86
- Use CPPC information in Intel P-State driver to get performance information
- Scheduler enhancements

By default this feature is OFF, to turn on:

# echo 1 > /proc/sys/kernel/sched_itmt_enabled


Srinivas Pandruvada (7):
  acpi: cppc: Allow build with ACPI_CPU_FREQ_PSS config
  acpi: cpcc: Add integer read support
  acpi: cppc: Add support for function fixed hardware address
  acpi: cppc: Add prefix cppc to cpudata structure name
  acpi: bus: Enable HWP CPPC objects
  acpi: bus: Set _OSC for diverse core support
  cpufreq: intel_pstate: Use CPPC to get max performance

Tim Chen (4):
  sched, cpuset: Add regenerate_sched_domains function to rebuild all
    sched domains
  sched, x86: Add SD_ASYM_PACKING flags to x86 cpu topology for cpus
    supporting Intel Turbo Boost Max Technology
  sched: Extend scheduler's asym packing
  sched,x86: Enable Turbo Boost Max Technology

 arch/x86/Kconfig                |   9 +++
 arch/x86/include/asm/topology.h |  26 +++++++
 arch/x86/kernel/Makefile        |   1 +
 arch/x86/kernel/itmt.c          | 147 ++++++++++++++++++++++++++++++++++++++++
 arch/x86/kernel/smpboot.c       |  77 ++++++++++++++++-----
 drivers/acpi/Kconfig            |   1 -
 drivers/acpi/bus.c              |   9 +++
 drivers/acpi/cppc_acpi.c        |  88 ++++++++++++++++++++----
 drivers/acpi/processor_driver.c |   5 +-
 drivers/cpufreq/Kconfig.x86     |   1 +
 drivers/cpufreq/cppc_cpufreq.c  |  14 ++--
 drivers/cpufreq/intel_pstate.c  |  75 +++++++++++++++++++-
 include/acpi/cppc_acpi.h        |   4 +-
 include/linux/acpi.h            |   1 +
 include/linux/cpuset.h          |   2 +
 include/linux/sched.h           |   3 +
 kernel/cpuset.c                 |  32 +++++++--
 kernel/sched/core.c             |  46 ++++++++++++-
 kernel/sched/fair.c             |  25 ++++---
 kernel/sched/sched.h            |  17 +++++
 20 files changed, 517 insertions(+), 66 deletions(-)
 create mode 100644 arch/x86/kernel/itmt.c

-- 
2.7.4