SRU:
* https://kernel.ubuntu.com/gitea/kernel/linux-firmware/pulls/20 (jammy)
* https://kernel.ubuntu.com/gitea/kernel/linux-firmware/pulls/21 (mantic)

** Description changed:

+ [SRU Justification]
+ 
+ [Impact]
+ 
+ Devices hang up at its desktop (Intel based platform + AMD Navi3.x dGPU)
+ during warm boot stress test.
+ 
+ [Fix]
+ 
+ AMD GPU dcn firmware upgrade to upstream commit bd2ad5e6 needed. The
+ affected blob is amdgpu/dcn_3_2_0_dmcub.bin, which has stayed the first
+ revision since Jammy is ever released. However, the related commits from
+ the upgrade path have also included blob updates to all kinds of
+ different, unrelated hardware models.
+ 
+ This pull request bumps only the affected binary to the target commit
+ per online discussion with AMD.
+ 
+ [Test Case]
+ 
+ Perform checkbox warmboot stress test:
+ 
+ $ checkbox-cli run com.canonical.certification::stress/reboot
+ 
+ [Where problems could occur]
+ 
+ While DCN blob maybe shared with several hardware models, with
+ confirmation from IHV, there should be little risk to upgrade it.
+ 
+ [Other Info]
+ 
+ Affects both Jammy and Mantic.
+ 
+ ========== original bug report ==========
+ 
  Dell reported sporadically hang up at its desktop (Intel based platform
  + AMD Navi3.x dGPU) during warm boot stress test.
  
  After updating DMCUB firmware version to 0x07002600, they observed a
  significant improvement in passing rate. And Dell wants to add the
  updated DMCUB firmware (ver 0x7002600) to its OEM image.
  
- 
- DMCUB firmware (ver 0x7002600) is at 
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/amdgpu/dcn_3_2_0_dmcub.bin?id=bd2ad5e65d3bc38fc35eed8c3dbb5e40ae45df20.
+ DMCUB firmware (ver 0x7002600) is at
+ https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-
+ 
firmware.git/commit/amdgpu/dcn_3_2_0_dmcub.bin?id=bd2ad5e65d3bc38fc35eed8c3dbb5e40ae45df20.

** Changed in: linux-firmware (Ubuntu Jammy)
       Status: New => In Progress

** Changed in: linux-firmware (Ubuntu Jammy)
   Importance: Undecided => High

** Changed in: linux-firmware (Ubuntu Mantic)
       Status: New => In Progress

** Changed in: linux-firmware (Ubuntu Mantic)
   Importance: Undecided => High

** Changed in: linux-firmware (Ubuntu Jammy)
     Assignee: (unassigned) => You-Sheng Yang (vicamo)

** Changed in: linux-firmware (Ubuntu Mantic)
     Assignee: (unassigned) => You-Sheng Yang (vicamo)

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https://bugs.launchpad.net/bugs/2053277

Title:
  add the updated navi3.x DMCUB FW (ver 0x07002600) to 22.04 Jammy

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