drm/i915/selftests: Hold request reference over waits

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Take a reference on the request before submitting it to the HW and then
waiting on it for selftest_workarounds. Once submitted, the request may
be freed by a background worker, unless we take an extra reference for
ourselves.

References: https://bugs.freedesktop.org/show_bug.cgi?id=111926
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009061759.3189-1-chris@chris-wilson.co.uk

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Chris Wilson 2019-10-09 07:17:59 +01:00

parent 6ad145fe02

commit 41f0bc49f7

1 changed files with 34 additions and 39 deletions

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drivers/gpu/drm/i915/gt/selftest_workarounds.c

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