PVC support regression

[upsj]

Rebuilding our system images moving from kernel version 5.14.0-427.42.1.el9_4.x86_64 with version 1.24.4.12.240603.18-1 (intel-i915-dkms) to kernel version 5.14.0-503.19.1.el9_5.x86_64 with version 1.24.7.9.241015.10-1 caused PVC support to break. I also added the necessary firmware files as mentioned in #199

Relevant information before:

$ lspci -knn
...
ca:00.0 Display controller [0380]: Intel Corporation Ponte Vecchio XT (1 Tile) [Data Center GPU Max 1100] [8086:0bda] (rev 2f)
        Subsystem: Intel Corporation Device [8086:0000]
        Kernel driver in use: i915
        Kernel modules: i915
...
$ modprobe -c
...
alias pci:v00008086d00000BDAsv*sd*bc03sc*i* i915
...

After:

$ lspci -knn
...
ca:00.0 Display controller [0380]: Intel Corporation Ponte Vecchio XT (1 Tile) [Data Center GPU Max 1100] [8086:0bda] (rev 2f)
        Subsystem: Intel Corporation Device [8086:0000]
...
$ modprobe -c
...
alias pci:v00008086d00000A2Asv*sd*bc03sc*i* i915
alias pci:v00008086d00000A2Bsv*sd*bc03sc*i* i915
alias pci:v00008086d00000A2Esv*sd*bc03sc*i* i915
alias pci:v00008086d00000A84sv*sd*bc03sc*i* i915
alias pci:v00008086d00000C02sv*sd*bc03sc*i* i915
alias pci:v00008086d00000C06sv*sd*bc03sc*i* i915
alias pci:v00008086d00000C0Asv*sd*bc03sc*i* i915
alias pci:v00008086d00000C0Bsv*sd*bc03sc*i* i915
alias pci:v00008086d00000C0Esv*sd*bc03sc*i* i915
...

Our A770 GPUs are still working, so this is only a partial failure. This is an Intel D50DNP server with 2 single-tile PVC GPUs loaned from Intel. I would like to avoid holding back the kernel version on a single system only.

[upsj]

I think it is also important to note that the intel-i915-dkms package shipped via https://repositories.intel.com/gpu/rhel/9.4/lts/2350/unified/ also has the same problem (and has had it since Rocky/RHEL 9.3), though IIRC this is version 1.23.

[smuqthya]

@upsj The kernel you are trying is RHEL9.5 based. which is not yet supported on the version

Please go through Readme doc for the latest OSV support. https://github.com/intel-gpu/intel-gpu-i915-backports/tree/backport/main .

[upsj]

I am aware, this is why I'm highlighting this regression so it can be handled in the next release.