Add support for DCN 3.5

[Mario Limonciello]

[Impact]
Products with DCN 3.5 need linux-firmware to be added for noble. Matching kernel support is already in kernel 6.8.

Without this firmware amdgpu won't bind.

[Test Plan]
Boot system and ensure accelerated graphics works.

[Where problems could occur]
This firmware is only loaded on hardware with DCN 3.5, VPE 6.1, VCN 4.0.5, SDMA 6.1.0, GC 11.5.0, or PSP 14.0.0.

[Other info]
Here are commit IDs:
6bfdacdd amdgpu: add DMCUB 3.5 firmware
cb59bf73 amdgpu: add VPE 6.1.0 firmware
3ca35ef5 amdgpu: add VCN 4.0.5 firmware
9a3a6c61 amdgpu: add UMSCH 4.0.0 firmware
62cc1372 amdgpu: add SDMA 6.1.0 firmware
b455dd24 amdgpu: add PSP 14.0.0 firmware
30c1adcb amdgpu: add GC 11.5.0 firmware

[Timo Aaltonen (tjaalton)]

Hello Mario, or anyone else affected,

Accepted linux-firmware into noble-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/linux-firmware/20240318.git3b128b60-0ubuntu2.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-noble to verification-done-noble. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-noble. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[Ubuntu SRU Bot (ubuntu-sru-bot)]

All autopkgtests for the newly accepted linux-firmware (20240318.git3b128b60-0ubuntu2.1) for noble have finished running.
The following regressions have been reported in tests triggered by the package:

linux-firmware-raspi/unknown (arm64, armhf)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/noble/update_excuses.html#linux-firmware

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

[Mario Limonciello (superm1)]

This is certainly a false negative. This firmware only affects DCN 3.5 which isn't available for arm64 or armhf.

[Mario Limonciello (superm1)]

Internal team tested this SRU against current generic and OEM kernel and it fails on both because they're missing the fix for https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2066233.

After adding in that fix it works.

[Mario Limonciello (superm1)]

As the firmware is on it's own stable and by the time this hardware is in market that kernel fix should be picked up adding verification done tag.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-firmware - 20240318.git3b128b60-0ubuntu2.1

---------------
linux-firmware (20240318.git3b128b60-0ubuntu2.1) noble; urgency=medium

  * Fix the RTL8852CE BT FW Crash based on SER false alarm (LP: #2060904)
    - rtw89: 8852c: update fw to v0.27.56.14
  * Add support for DCN 3.5 (LP: #2063002)
    - amdgpu: add GC 11.5.0 firmware
    - amdgpu: add PSP 14.0.0 firmware
    - amdgpu: add SDMA 6.1.0 firmware
    - amdgpu: add UMSCH 4.0.0 firmware
    - amdgpu: add VCN 4.0.5 firmware
    - amdgpu: add VPE 6.1.0 firmware
    - amdgpu: add DMCUB 3.5 firmware
  * Add Cirrus Logic CS35L56 amplifier support (LP: #2062135)
    - linux-firmware: Add firmware for Cirrus CS35L56 for various HP laptops
  * Fix system hang while entering suspend with AMD Navi3x graphics (LP: #2063417)
    - amdgpu: DMCUB updates for various AMDGPU ASICs
    - amdgpu: DMCUB updates for various AMDGPU ASICs
  * Add support of TAS2781 amp of audio (LP: #2064064)
    - ASoC: tas2781: Add dsp firmware for Thinkpad ICE-1 laptop

 -- Juerg Haefliger <email address hidden> Mon, 06 May 2024 10:17:13 +0200

[Timo Aaltonen (tjaalton)]

The verification of the Stable Release Update for linux-firmware has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.