drm/amdgpu: Add UALink firmware writeback address configuration

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Compute the writeback buffer addresses for a ring, send a configuration
command to firmware, and mark the ring ready on acknowledgement.
Configuration is deferred to first use.

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 c5d7b2c766

commit 4be1448fc6

1 changed files with 71 additions and 0 deletions

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

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