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amdgpu: UAPI for AMDGPU usermode queues

Arvind Yadav requested to merge ArvindYadav/drm:amd_userqueue_integration into main

This patch adds UAPI interface changes for AMDGPU usermode queues, semaphore and new AMDGPU GEM domain for doorbells. Usermode queues allow a userspace process to create and submit its graphics/compute/sdma work directly to the GPU.

Cc: Koenig, Christian christian.koenig@amd.com Cc: Alex Deucher alexander.deucher@amd.com Signed-off-by: Shashank Sharma shashank.sharma@amd.com Signed-off-by: Arvind Yadav arvind.yadav@amd.com Signed-off-by: Arunpravin Paneer Selvam Arunpravin.PaneerSelvam@amd.com

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