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This patch adds a test where a low priority batch is going to be declared hung while a preemption is pending. The test wants to verify that a 'hanging' low priority batch will not disrupt the execution of a high priority context and that the driver does due diligence in managing a reset while a preemption is pending. -v2: - Use igt_hang_ctx to hang the engine (Chris) - Enable/Process engine reset using IGT libs (Chris) - Create new subtest_group for the test (Chris) Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michal Winiarski <michal.winiarski@intel.com> Signed-off-by: Antonio Argenziano <antonio.argenziano@intel.com> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
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