Verified 5.3.0-25.27/eoan-proposed
** Description changed:
+ [SRU Justification]
+
+ [Impact]
+ There is no complete perf support for Comet Lake CPU. For Ice Lake, some
+ changes has been included in v5.3, but still misses CPU IDs.
+
+ [Fix]
+ perf support for Comet Lake is based on previous works for Ice Lake, so
+ changes for both have to be backported.
+
+ [Test Case]
+ On platforms with Comet Lake/Ice Lake CPUs, one should find new
+ cstate_pkg events c{8,9,10}-residency appear in output of `perf list`
+ for use.
+
+ [Regression Potential]
+ Low. This backports perf support for previously incompletedly supported
+ cpu models.
+
+ ========== original bug description ==========
+
Description:
CML perf enabling for core
v5.4-rc3
1ffa6c04dae39776a3c222bdf88051e394386c01
9066288b2aab1804dc1eebec6ff88474363b89cb
9674b1cc0f94c34f76e58c102623a866836f269e
-
Target Kernel: 5.4
Target Release: 20.04
** Tags removed: verification-needed-eoan
** Tags added: verification-done-eoan
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https://bugs.launchpad.net/bugs/1848978
Title:
CML: perf enabling for core
Status in intel:
Fix Committed
Status in OEM Priority Project:
Confirmed
Status in linux package in Ubuntu:
Confirmed
Status in linux-oem-osp1 package in Ubuntu:
Confirmed
Status in linux source package in Bionic:
Won't Fix
Status in linux-oem-osp1 source package in Bionic:
Fix Committed
Status in linux source package in Disco:
Won't Fix
Status in linux-oem-osp1 source package in Disco:
Confirmed
Status in linux source package in Eoan:
Fix Committed
Status in linux-oem-osp1 source package in Eoan:
Confirmed
Status in linux source package in Focal:
Confirmed
Status in linux-oem-osp1 source package in Focal:
Confirmed
Bug description:
[SRU Justification]
[Impact]
There is no complete perf support for Comet Lake CPU. For Ice Lake, some
changes has been included in v5.3, but still misses CPU IDs.
[Fix]
perf support for Comet Lake is based on previous works for Ice Lake, so
changes for both have to be backported.
[Test Case]
On platforms with Comet Lake/Ice Lake CPUs, one should find new
cstate_pkg events c{8,9,10}-residency appear in output of `perf list`
for use.
[Regression Potential]
Low. This backports perf support for previously incompletedly supported
cpu models.
========== original bug description ==========
Description:
CML perf enabling for core
v5.4-rc3
1ffa6c04dae39776a3c222bdf88051e394386c01
9066288b2aab1804dc1eebec6ff88474363b89cb
9674b1cc0f94c34f76e58c102623a866836f269e
Target Kernel: 5.4
Target Release: 20.04
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