Rob Herring b31bdd1389 drm/panfrost: Convert MMU IRQ handler to threaded handler
In preparation to handle mapping of page faults, we need the MMU handler
to be threaded as code paths take a mutex.

As the IRQ may be shared, we can't use the default handler and must
disable the MMU interrupts locally.

Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Boris Brezillon <boris.brezillon@collabora.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190808222200.13176-8-robh@kernel.org
2019-08-12 14:21:13 -06:00
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