drm/amdkfd: Fix sdma queue allocate race condition

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SDMA queue allocation requires the dqm lock at it modify
the global dqm members. Move up the dqm_lock so sdma
queue allocation is enclosed in the critical section. Move
mqd allocation out of critical section to avoid circular
lock dependency.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Oak Zeng 2019-06-06 13:19:06 -05:00 • committed by Alex Deucher

parent 06b89b38f3

commit f77dac6cd6

1 changed files with 12 additions and 14 deletions

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drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c

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