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The atomics here might hide potential issues, also rpm core is not holding any lock when calling our rpm resume callback, so add a dummy lock with the idea that xe_pm_runtime_resume() is eventually going to be called when we are holding it. This only needs to happen once and then lockdep can validate all callers and their locks. v2: (Thomas Hellström) - Prefer static lockdep_map instead of full blown mutex. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Acked-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>