accel/amdxdna: Fix deadlock between context destroy and job timeout

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[ Upstream commit ca25834123 ]

Hardware context destroy function holds dev_lock while waiting for all jobs
to complete. The timeout job also needs to acquire dev_lock, this leads to
a deadlock.

Fix the issue by temporarily releasing dev_lock before waiting for all
jobs to finish, and reacquiring it afterward.

Fixes: 4fd6ca90fc ("accel/amdxdna: Refactor hardware context destroy routine")
Reviewed-by: Maciej Falkowski <maciej.falkowski@linux.intel.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20251107181050.1293125-1-lizhi.hou@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Lizhi Hou 2025-11-07 10:10:50 -08:00 • committed by Greg Kroah-Hartman

parent 677b91705b

commit 2f13baf62b

1 changed files with 4 additions and 2 deletions

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drivers/accel/amdxdna/aie2_ctx.c

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