drm/amdgpu: Add UALink cross-GPU TLB shootdown and remote interrupt

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Expose the two public send operations for remote TLB invalidation and
remote interrupt delivery. Set up per-peer GART entries covering ring
buffers, write pointer pages, and doorbells for every active remote GPU.

v2: fix 32 bit build (Ivan)

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Philip Yang 2026-03-25 13:37:11 -04:00 • committed by Alex Deucher

parent 4be1448fc6

commit 6e3834ceaf

1 changed files with 244 additions and 0 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_ualink.c

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