drm/panfrost: Make sure job interrupts are masked before resetting

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This is not yet needed because we let active jobs be killed during by
the reset and we don't really bother making sure they can be restarted.
But once we start adding soft-stop support, controlling when we deal
with the remaining interrrupts and making sure those are handled before
the reset is issued gets tricky if we keep job interrupts active.

Let's prepare for that and mask+flush job IRQs before issuing a reset.

v4:
* Add a comment explaining why we WARN_ON(!job) in the irq handler
* Keep taking the job_lock when evicting stalled jobs

v3:
* New patch

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210630062751.2832545-11-boris.brezillon@collabora.com

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This commit is contained in:

Boris Brezillon 2021-06-30 08:27:45 +02:00

parent a11c471123

commit 1d0cab5461

1 changed files with 22 additions and 5 deletions

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drivers/gpu/drm/panfrost/panfrost_job.c

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