drm/amdgpu/sdma: add detect_hung_queue callback

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Add an optional per-IP callback that maps a user queue's doorbell index
to its HW slot (instance, queue_id). It is needed to reset a hung SDMA
user queue over MMIO, since struct amdgpu_usermode_queue does not store
its HW slot.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Jesse Zhang 2026-09-03 17:36:14 +08:00 • committed by Alex Deucher

parent 1fe83d752b

commit 4a3ef2809c

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drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h

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