Being submitted on the kernel side with the upcoming Linux 7.2 kernel is initial support for the GFX 11.5.6 graphics IP block along with several other newer IP blocks such as SDMA 6.4, NBIO 7.11.5, IH 6.4, HDP 6.4, MMHUB 3.4.2, SMU 15.0.5, ATHUB 3.4.2, and VPE 2.2. Now in user-space for the Mesa RadeonSI Gallium3D and RADV Vulkan drivers is the GFX1156 (GFX 11.5.6) support being prepared too.

We still don't yet know externally what future AMD products will correlate to GFX1156 but given the version number it puts it in the RDNA 3.5 "refresh " / GFX115x line-up as some newer APU part.

With the Mesa patch for introducing GFX1156 it cuts the range space of "AMDGPU_STRIX_HALO_RANGE" to just before GFX1156, so it's not another variant for Strix Point. It's unlikely to be Ryzen AI Max 400 series "Gorgon Halo" as given the timing of that launch that should end up already being prepped with its Linux support already upstream whether it's re-using the same graphics IP version as the Ryzen AI Max 300 "Strix Halo" or one of the other already existing reserved versions. Meanwhile the Ryzen AI Max 500 "Medusa Halo" next-gen SoCs are rumored to be using RDNA5 and thus won't be an RDNA 3.5 / GFX115x part.

The Mesa driver common code paths for GFX1156 is taking the same route as GFX1153. GFX1153 is the version for Ryzen AI "Medusa Point", so it's possible that GFX1156 will be another off-shoot from there.

At least at this stage it's following the GFX1153 user-space driver code paths with no other feature differences exposed, but any other driver differences could always be merged later and closer to the actual product launch.

Whatever GFX1156 ends up being for, AMD engineers are already preparing for the open-source graphics driver support. This merge is now in Mesa 26.2 as of today with that initial GFX1156 plumbing to go along nicely with the upcoming Linux 7.2 merge window for the AMDGPU and AMDKFD kernel driver support.