This bug was fixed in the package linux-oem-6.11 - 6.11.0-1011.11
---------------
linux-oem-6.11 (6.11.0-1011.11) noble; urgency=medium
* noble/linux-oem-6.11: 6.11.0-1011.11 -proposed tracker (LP:
#2092173)
* [SRU] Add Arrow Lake U/H support to the intel_pmc_core driver (LP: #2092001)
- SAUCE: platform/x86:intel/pmc: Make tgl_core_generic_init() static
- SAUCE: platform/x86:intel/pmc: Create info structure for pmc device
- SAUCE: platform/x86/intel/pmc: Add Arrow Lake U/H support to
intel_pmc_core
driver
* Packaging resync (LP: #1786013)
- [Packaging] debian.oem/dkms-versions -- manual update for Intel MIPI
Camera
* Support AMD Strix-Halo Image Signal Processing (ISP) unit (LP: #2069019)
- SAUCE: ispkernel 3.0 release
- [Config] Enable AMD_ISP4
* Failed to probe for OVTI02C1: chip id mismatch: 560243!=0 (LP: #2090932)
- SAUCE: ACPI: scan: Update HID for new platform
* Prefer BIOS over PMF on some AMD platforms (LP: #2091847)
- SAUCE: amd: pmf: Add quirks to make probe fail on some platforms
* Adding support for Cirrus sof-soundwire audio on Dell Renegade platform
(LP: #2091837)
- ASoC: Intel: soc-acpi: arl: Correct naming of a cs35l56 address struct
- ASoC: Intel: soc-acpi: arl: Add match entries for new cs42l43 laptops
* [SRU] Fix unnecessary error messages during optional AMDGPU firmware load
(LP: #2091856)
- drm/amd: Use a constant format string for amdgpu_ucode_request
- drm/amdgpu: use sjt mec fw on gfx943 for sriov
- drm/amdgpu: move per inst variables to amdgpu_vcn_inst
- drm/amd: Add the capability to mark certain firmware as "required"
* Intel AX211 wireless module [8086:7740] subsys [8086:4090] wrongly
recognized as BE201 (LP: #2091546)
- SAUCE: wifi: iwlwifi: fix CRF name for Bz
* UBSAN: array-index-out-of-bounds in module mt76 in mt76_wcid_cleanup
(LP: #2091077)
- wifi: mt76: mt7915: fix oops on non-dbdc mt7986
* Support for Cirrus codec on Taroko RPL platform (LP: #2089885)
- ALSA/ASoC/SoundWire: Intel: use single definition for SDW_INTEL_MAX_LINKS
- soundwire: intel: add probe-time check on link id
- soundwire: intel: increase maximum number of links
- ASoC: Intel: soc-acpi-intel-rpl-match: add missing empty item
- ASoC: Intel: sof_sdw: Add missing quirks from some new Dell
- ASoC: SOF: ipc3-topology: Convert the topology pin index to ALH dai index
-- Kuan-Ying Lee <[email protected]> Thu, 19 Dec 2024
17:38:30 +0800
** Changed in: linux-oem-6.11 (Ubuntu Noble)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2091847
Title:
[SRU] Prefer BIOS over PMF on some AMD platforms
Status in HWE Next:
New
Status in linux-oem-6.11 package in Ubuntu:
New
Status in linux-oem-6.11 source package in Noble:
Fix Released
Bug description:
[ Impact ]
Some AMD platforms prefer letting BIOS handling what are supposed to
be done by the PMF kernel driver. On those platforms, the BIOS should
take full control over the relevant functions, without the
interference from the PMF driver. To achieve this, add quirks that
make the PMF driver fail to probe on those platforms.
[ Test Plan ]
1. Install the kernel on one of those platforms.
2. Boot into the kernel.
3. Check dmesg. It should show "Platform prefers BIOS over PMF module. Finish
PMF driver probe early."
[ Where problems could occur ]
If the quirk matches the wrong platform, PMF driver will not function.
[ Other Information ]
Simply making the driver fail to probe would suffice. This is because
BIOS detects the presence of the PMF driver by detecting regular
heartbeat signal sent from the driver. If BIOS detects no such
heartbeats, it'll consider the PMF driver missing, and will
automatically take over the relevant functions.
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