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This commit enables basic support for Hopper GPUs, and is intended primarily as a base supporting Blackwell GPUs, which reuse most of the code added here. Advanced features such as Confidential Compute are not supported. Beyond a few miscellaneous register moves and HW class ID plumbing, the bulk of the changes implemented here are to support the GSP-RM boot sequence used on Hopper/Blackwell GPUs, as well as a new page table layout. There should be no changes here that impact prior GPUs. Signed-off-by: Ben Skeggs <bskeggs@nvidia.com> Co-developed-by: Timur Tabi <ttabi@nvidia.com> Signed-off-by: Timur Tabi <ttabi@nvidia.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Reviewed-by: Timur Tabi <ttabi@nvidia.com> Tested-by: Timur Tabi <ttabi@nvidia.com> Signed-off-by: Dave Airlie <airlied@redhat.com>