Enable AMD GCN subgroup DMMV pipelines#7

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rasbid wants to merge 1 commit intomasterfrom

codex/update-ggml_vk_load_shaders-for-amd-gcn

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rasbid commented Oct 12, 2025

Summary

allow AMD GCN devices that expose wave64 subgroups to select the subgroup DMMV shaders when the driver supports them
require full subgroups and pin the subgroup size when compiling the subgroup DMMV pipelines so wave64 is enforced

Testing

not run (not available in container)

https://chatgpt.com/codex/tasks/task_e_68ebe9163d70833080282cb3e06a9d85


          Enable AMD GCN subgroup DMMV pipelines

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