[SRU][PULL][linux-firmware][Jammy] amdgpu: Update DMCUB for DCN314 & Yellow Carp

[Juerg Haefliger]

On Fri,  4 Aug 2023 16:03:13 +0800
You-Sheng Yang <vicamo.yang at canonical.com> wrote:

> BugLink: https://bugs.launchpad.net/bugs/2029384
> 
> [Impact]
> 
> Monitors black out when an external one connects via thunderbolt3 on AMD Ryzen
> 9 PRO 7940HS w/ Radeon 780M Graphics.
> 
> [Fix]
> 
> This can be fixed by upstream linux-firmware commit 253cc179d849 ("amdgpu:
> Update DMCUB for DCN314 & Yellow Carp").

Do we need to update both files? I'm reluctant given the recent mess. See LP:
#2030795 where updating only yellow_carp fixed the issue. Are these two
blobs in any way related and need to be updated in sync or did AMD just
choose to make our lives difficult?

...Juerg

 
> However, in linux-firmware/lunar and jammy, the commit history related to the
> files to be updated often associated with many other more, they're now updated
> with overwrites without cherry-pick ancestor commits along the history.
> 
> For linux-firmware/mantic, a simple cherry-pick would do.
> 
> [Test Case]
> 
> Connect an tbt3 featured external monitor (ASUS PA27AC) after boot to GUI.
> Check if both the built-in and external monitors lights up as usual.
> 
> [Where problems could occur]
> 
> Update amdgpu firmware are error prone, verified on targeting series as
> possible.
> 
> [Other Info]
> 
> While this affects linux-oem-6.1/jammy, as well as linux/lunar kernels, Jammy
> and Lunar are nominated for fix.
> 
> ----------------------------------------------------------------
> The following changes since commit 29b75ccf8e74b5064e7f6976924363a68b73b53c:
> 
>   UBUNTU: Ubuntu-20220329.git681281e4-0ubuntu3.16 (2023-07-19 10:37:52 +0200)
> 
> are available in the Git repository at:
> 
>   https://git.launchpad.net/~vicamo/ubuntu/+source/linux-firmware bug-2029384/external-tbt3-monitor-black/jammy
> 
> for you to fetch changes up to 6a86399f6dabc0451b9f86c243b96546062cae3d:
> 
>   amdgpu: Update DMCUB for DCN314 & Yellow Carp (2023-08-04 15:28:22 +0800)
> 
> ----------------------------------------------------------------
> Aurabindo Pillai (1):
>       amdgpu: Update DMCUB for DCN314 & Yellow Carp
> 
>  amdgpu/dcn_3_1_4_dmcub.bin   | Bin 301344 -> 300448 bytes
>  amdgpu/yellow_carp_dmcub.bin | Bin 234000 -> 234512 bytes
>  2 files changed, 0 insertions(+), 0 deletions(-)
> 

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