drm/amdkfd: Tie UNMAP_LATENCY to queue_preemption

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When KFD asks CP to preempt queues, other than preempt CP queues, CP
also requests SDMA to preempt SDMA queues with UNMAP_LATENCY timeout.
Currently queue_preemption_timeout_ms is 9000 ms by default but can be
configured via module parameter. KFD_UNMAP_LATENCY_MS is hard coded as
4000 ms though. This patch ties KFD_UNMAP_LATENCY_MS to
queue_preemption_timeout_ms so in a slow system such as emulator, both
CP and SDMA slowness are taken into account.

Signed-off-by: Amber Lin <Amber.Lin@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Amber Lin 2025-08-15 14:04:15 -04:00 • committed by Alex Deucher

parent 181d7dcc58

commit f3820e9d35

1 changed files with 8 additions and 1 deletions

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drivers/gpu/drm/amd/amdkfd/kfd_priv.h

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