Private bug reported:
[Feature Description]
Split_lock_detect is not shown in /proc/cpuinfo on tgl-u.
Hardware Configuration
Board ID TigerLake U DDR4 SODIMM RVP 0x1
Processor Genuine Intel(R) CPU 0000 2.40GHz B0 stepping QDF#Q7YP
Mem 16GB DDR4 2667MHz (2x8GB)
Storage 512GB FORCE SERIES MP600 NVMe PCIe Gen4 x4 M.2 SSD
PCH TGL PCH-LP U Premium B0 stepping
Commit Ids:
429ac8b75a0b1c3478ffd584de8a63075cbe25e7
Reproduce steps:
1. install 5.8
2. cat /proc/cpuinfo
Kernel: 5.8
Target Release: 20.10
[HW/SW Information]
Tiger Lake
[Business Justification]
Function enabling
** Affects: intel
Importance: Undecided
Status: Fix Committed
** Affects: ubuntu
Importance: Undecided
Status: New
** Also affects: ubuntu
Importance: Undecided
Status: New
** Information type changed from Public to Private
** Summary changed:
- [TGL-U] 5.7-rc3 split_lock_detect flag is not enumerated in /proc/cpuinfo
+ [TGL-U] split_lock_detect flag is not enumerated in /proc/cpuinfo
** Changed in: intel
Status: New => Fix Committed
** Description changed:
[Feature Description]
Split_lock_detect is not shown in /proc/cpuinfo on tgl-u.
It worked on rc6 but doesn't work on rc7-5.3.
Hardware Configuration
Board ID TigerLake U DDR4 SODIMM RVP 0x1
Processor Genuine Intel(R) CPU 0000 2.40GHz B0 stepping QDF#Q7YP
Mem 16GB DDR4 2667MHz (2x8GB)
Storage 512GB FORCE SERIES MP600 NVMe PCIe Gen4 x4 M.2 SSD
PCH TGL PCH-LP U Premium B0 stepping
Commit Ids:
429ac8b75a0b1c3478ffd584de8a63075cbe25e7
- Kernel: 5.8
-
Reproduce steps:
- 1. install 5.7.0-rc3-intel-next+
+ 1. install 5.8
2. cat /proc/cpuinfo
- Target Kernel: 5.7
+ Kernel: 5.8
Target Release: 20.10
[HW/SW Information]
Tiger Lake
[Business Justification]
Function enabling
** Description changed:
[Feature Description]
Split_lock_detect is not shown in /proc/cpuinfo on tgl-u.
- It worked on rc6 but doesn't work on rc7-5.3.
Hardware Configuration
Board ID TigerLake U DDR4 SODIMM RVP 0x1
Processor Genuine Intel(R) CPU 0000 2.40GHz B0 stepping QDF#Q7YP
Mem 16GB DDR4 2667MHz (2x8GB)
Storage 512GB FORCE SERIES MP600 NVMe PCIe Gen4 x4 M.2 SSD
PCH TGL PCH-LP U Premium B0 stepping
Commit Ids:
429ac8b75a0b1c3478ffd584de8a63075cbe25e7
Reproduce steps:
1. install 5.8
2. cat /proc/cpuinfo
Kernel: 5.8
Target Release: 20.10
[HW/SW Information]
Tiger Lake
[Business Justification]
Function enabling
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https://bugs.launchpad.net/bugs/1892203
Title:
[TGL-U] split_lock_detect flag is not enumerated in /proc/cpuinfo
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