[TGL] Enable SLP_S0_DEBUG debug facilities
Bug #1842230 reported by
quanxian
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| intel |
Fix Released
|
Undecided
|
Unassigned | ||
| linux-oem-5.6 (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Bug Description
Description
Beginning in CNL, there are SLP_S0_DEBUG registers which expose, either on SLP_S0 exit or through manual latching, what pulled the system out of SLP_S0.
Beginning with TGL (per the Cspec at time of writing, anyway) there are supposed to additional SLP_S0 debug registers for determining what cause the system to "wake" (or exit) from C10.
Requirements:
Expand the pmc_core driver to expose SLP_S0 debug details in debugfs
Expand the pmc_core driver to expose SLP_S0_WAKE debug details in debugfs
Target Release: 20.10
Target Kernel: 5.6
Revision history for this message
| quanxian (quanxian-wang) wrote | #2 |
| Changed in intel: | |
| status: | New → Fix Committed |
| tags: | added: tigerlake |
Revision history for this message
| Anthony Wong (anthonywong) wrote | #3 |
| Changed in linux (Ubuntu): | |
| assignee: | nobody → Timo Aaltonen (tjaalton) |
| status: | New → Triaged |
| importance: | Undecided → Medium |
| description: | updated |
| tags: |
added: intel-kernel-20.10 removed: intel-kernel-20.04 |
| information type: | Private → Public |
| affects: | linux (Ubuntu) → linux-oem-5.6 (Ubuntu) |
Revision history for this message
| Timo Aaltonen (tjaalton) wrote | #4 |
| Changed in linux-oem-5.6 (Ubuntu): | |
| assignee: | Timo Aaltonen (tjaalton) → nobody |
| status: | Triaged → Fix Released |
| Changed in intel: | |
| status: | Fix Committed → Fix Released |
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v5.6