[Feature] Updated RAPL support for SKylake

[Yingying Zhao]

Add Skylake support in RAPL driver.

Upstream status:
Kernel - target 4.1

[Leann Ogasawara (leannogasawara)]

Per discussion between Canonical and Intel, retarget to 15.10.

[XiongZhang (xiong-y-zhang)]

Implemented in 4.1 kernel
5fa0fa4 powercap / RAPL: Add support for Intel Skylake processors

[XiongZhang (xiong-y-zhang)]

For SKY-Y/H: http://marc.info/?l=linux-kernel&m=143835544604828&w=2

[Leann Ogasawara (leannogasawara)]

The patch in comment #3 is in linux-next at the moment:

commit 286272137f66199f87ea254397181b9bab5e5467
Author: Radivoje Jovanovic <email address hidden>
Date: Fri Jul 31 08:07:45 2015 -0700

    thermal/powerclamp: add cpu id for skylake h/s

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.2.0-10.11

---------------
linux (4.2.0-10.11) wily; urgency=low

  [ Andy Whitcroft ]

  * Release Tracking Bug
    - LP: #1495208
  * No change rebuild to avoid issues with leading zero bytes on
    internal module signing key. (see launchpad bug 1494943)

  [ Ming Lei ]

  * [Config] SERIAL_8250_DW=y for arm64

  [ Upstream Kernel Changes ]

  * drm/i915: Move WaBarrierPerformanceFixDisable:skl to skl code from chv
    code
    - LP: #1484486
  * drm/i915/gen8: Add infrastructure to initialize WA batch buffers
    - LP: #1484486
  * drm/i915/gen8: Re-order init pipe_control in lrc mode
    - LP: #1484486
  * drm/i915/gen8: Add WaDisableCtxRestoreArbitration workaround
    - LP: #1484486
  * drm/i915/gen8: Add WaFlushCoherentL3CacheLinesAtContextSwitch
    workaround
    - LP: #1484486
  * drm/i915: Bail out early if WA batch is not available for given Gen
    - LP: #1484486
  * drm/i915/gen8: Add WaClearSlmSpaceAtContextSwitch workaround
    - LP: #1484486
  * drm/i915: Update WaFlushCoherentL3CacheLinesAtContextSwitch
    - LP: #1484486
  * drm/i915/gen9: Implement WaDisableKillLogic for gen 9
    - LP: #1484486
  * drm/i915: Enable WA batch buffers for Gen9
    - LP: #1484486
  * drm/i915/gen9: Add WaDisableCtxRestoreArbitration workaround
    - LP: #1484486
  * drm/i915: Update wa_ctx_emit() macro as per kernel coding guidelines
    - LP: #1484486
  * drm/i915/gen9: Add WaFlushCoherentL3CacheLinesAtContextSwitch
    workaround
    - LP: #1484486
  * drm/i915/gen9: Add
    WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken
    - LP: #1484486
  * drm/i915:skl: Add WaEnableGapsTsvCreditFix
    - LP: #1484486
  * drm/i915/skl: revert duplicated WaBarrierPerformanceFixDisable:skl
    - LP: #1484486
  * drm/i915/skl: Don't expose the top most plane on gen9 display
    - LP: #1484486
  * drm/i915/skl WaDisableSbeCacheDispatchPortSharing
    - LP: #1484486
  * drm/i915/skl: WaIgnoreDDIAStrap is forever, always init DDI A
    - LP: #1484486
  * drm/i915: reduce indent in i9xx_hpd_irq_handler
    - LP: #1484531
  * drm/i915: reduce duplicate conditions in i9xx_hpd_irq_handler
    - LP: #1484531
  * drm/i915: reduce indent in intel_hpd_irq_handler
    - LP: #1484531
  * drm/i915: group all hotplug related fields into a new struct in
    dev_priv
    - LP: #1484531
  * drm/i915: add for_each_hpd_pin to iterate over hotplug pins
    - LP: #1484531
  * drm/i915: simplify conditions for skipping the 2nd hpd loop iterations
    - LP: #1484531
  * drm/i915: put back the indent in intel_hpd_irq_handler
    - LP: #1484531
  * drm/i915: merge the two hpd loops in intel_hpd_irq_handler to one
    - LP: #1484531
  * drm/i915: simplify condition for digital port
    - LP: #1484531
  * drm/i915: abstract away platform specific parts from hpd handling
    - LP: #1484531
  * drm/i915: Handle HPD when it has actually occurred
    - LP: #1484531
  * drm/i915: Set power domain for DDI-E
    - LP: #1484531
  * drm/i915: Set alternate aux for DDI-E
    - LP: #1484531
  * drm/i915/skl: enable DDI-E hotplug
    - LP: #1484531
  * drm/i915/bxt: fix DDI PHY vswing scale value setting
    - LP: #1494163
  * drm/i915/skl: Buf...

[XiongZhang (xiong-y-zhang)]

hi, Tim:
      The commit ID in comment#4 is wrong and this patch isn't in ubuntu 4.2.0-10 kernel.
       Please back port this patch from 4.3 kernel:
commit 2cac1f700c2c6baf836f24c778a73a847a48f484
Author: Radivoje Jovanovic <email address hidden>
Date: Fri Jul 31 08:07:10 2015 -0700

    powercap / RAPL: Add support for Skylake H/S

thanks

[Tim Gardner (timg-tpi)]

5021282cc483d4126c1704942adb74806f7d15d6 powercap / RAPL: disable the 2nd power limit properly
4e0bec9e833a6884dc2e242e45e0ebd99f46624e powercap / RAPL: Add support for Broadwell-H
2cac1f700c2c6baf836f24c778a73a847a48f484 powercap / RAPL: Add support for Skylake H/S

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.2.0-11.13

---------------
linux (4.2.0-11.13) wily; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1498170
  * [Config] updateconfigs, removed CONFIG_KVM_ARM_MAX_VCPUS
  * rebase to v4.2.1

  [ Upstream Kernel Changes ]

  * powercap / RAPL: Add support for Skylake H/S
    - LP: #1398269
  * powercap / RAPL: Add support for Broadwell-H
    - LP: #1398269
  * powercap / RAPL: disable the 2nd power limit properly
    - LP: #1398269
  * thermal/powerclamp: add cpu id for Skylake u/y
  * thermal/powerclamp: add cpu id for denlow platform
  * arm/arm64: KVM: Remove 'config KVM_ARM_MAX_VCPUS'

  [ Upstream Kernel Changes ]

  * rebase to v4.2.1

 -- Tim Gardner <email address hidden> Wed, 16 Sep 2015 06:55:41 -0600