This bug is awaiting verification that the linux/5.15.0-72.79 kernel in
-proposed solves the problem. Please test the kernel and update this bug
with the results. If the problem is solved, change the tag
'verification-needed-jammy' to 'verification-done-jammy'. If the problem
still exists, change the tag 'verification-needed-jammy' to
'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-jammy-linux verification-needed-jammy

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https://bugs.launchpad.net/bugs/2015372

Title:
  Add support for intel EMR cpu

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Jammy:
  Fix Committed

Bug description:
  SRU Justification

  [Impact]

  Intel has introduced support for their new Emerald Rapids CPU.
  This support is a nice feature to have in Jammy because it is an LTS release 
and enabling extra hardware adds to its usability.

  Usually backporting new features to existing kernels it's not a common 
practice.
  But these commits were easy to backport. Most of them were clean cherry 
picks. Some of them were already picked up from upstream stable releases,
  and some required manual intervention because Jammy did not have some commits 
applied but the actual changes were very minimal.

  More information about each commit is addressed inline.

  [Commits]

  1. 9c252ecf3036:
  "platform/x86: intel-uncore-freq: add Emerald Rapids support"
  Adjusted the path to uncore-frequency.c
  In ce2645c458b5c83b0872ea9e39d2c3293445353a commit, this was moved to 
uncore-frequency dir

  2. 5a8a05f165fb18d37526062419774d9088c2a9b9
  "perf/x86/intel/cstate: Add Emerald Rapids"
  Small context adjustment in intel_cstates_match array
  because of missing SPR, RPL and MDL cpu models introduced in
  528c9f1daf20d

  3. 57512b57dcfaf63c52d8ad2fb35321328cde31b0
  "perf/x86/rapl: Add support for Intel Emerald Rapids"

  Context adjustment due to missing 
  - 80275ca9e525c "perf/x86/rapl: Use standard Energy Unit for SPR Dram RAPL 
domain"
  - 1ab28f17eeeec "perf/x86/rapl: Add support for Intel AlderLake-N"
  - eff98a7421b3e "perf/x86/rapl: Add support for Intel Raptor Lake"
  - f52853a668bfe "perf/x86/rapl: Add support for Intel Meteor Lake"

  4. 74528edfbc664f9d2c927c4e5a44f1285598ed0f
  clean cherry-pick

  5. 61f9fdcdcd01f9a996b6db4e7092fcdfe8414ad5
  clean cherry-pick

  6. 93cac4150727dae0ee89f501dd75413b88eedec0
  clean cherry-pick

  7. 7adc6885259edd4ef5c9a7a62fd4270cf38fdbfb
  clean cherry-pick

  8. e4b2bc6616e21
  clean cherry-pick

  [Testing]
  Kernel was built on cbd and boot tested on a VM.
  TODO ask for help from intel.

  [Regression potential]
  Very low, these are minimal new features, which actually reuse a lot of the 
existing cpu structures/functions.

  ------------------------------------------------------------------------

  The following changes since commit
  8feeaa9039a290b978e7855ab82955cd9348fc13

  "platform/x86: intel-uncore-freq: add Emerald Rapids support"

  are available in the Git repository at:

    git://git.launchpad.net/~~roxanan/ubuntu/+source/linux/+git/jammy
  lp2015372

  for you to fetch changes up to commit
  7d88565e6777082265b373733fd93eb3e0914e12

  "EDAC/i10nm: Add Intel Emerald Rapids server support"

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