On Tue, 2017-10-31 at 12:22 +0000, Chris Wilson wrote:
> We will disarm the breadcrumb interrupt if we see a user interrupt
> whilst no one is waiting. This may race with the call to
> intel_engine_disarm_breadcrumbs() triggering an assert that we aren't
> trying to do the same job twice. Prevent this by checking that the irq
> is still armed after flushing the interrupt (for the irq spinlock).
>
> Fixes: bcbd5c33a342 ("drm/i915/guc: Always enable the breadcrumbs irq")
> Signed-off-by: Chris Wilson <[email protected]>
> Cc: Joonas Lahtinen <[email protected]>
> Cc: Michał Winiarski <[email protected]>
Reviewed-by: Joonas Lahtinen <[email protected]>
Regards, Joonas
--
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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