diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-12-22 11:35:35 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-12-22 14:38:10 +0000 |
| commit | 9559511b70d1136c7184fb90cc33b0b31ba72ecf (patch) | |
| tree | b0644bf21c03d675c60f059ef7ac863db3219c66 /drivers | |
| parent | 48c508a5165229aaf5e9bff5d15d5d3456fb9dc7 (diff) | |
drm/i915/selftests: Flush the preemption request before waiting
Make sure that the request has been submitted to HW before we begin our
wait. This reduces our reliance on the semaphore yield interrupt driving
the preemption request.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201222113536.3775-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/selftest_lrc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c index 6f21cdfd0903..6b069bb1ddcc 100644 --- a/drivers/gpu/drm/i915/gt/selftest_lrc.c +++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c @@ -607,6 +607,10 @@ static int __live_lrc_gpr(struct intel_engine_cs *engine, err = emit_semaphore_signal(engine->kernel_context, slot); if (err) goto err_rq; + + err = wait_for_submit(engine, rq, HZ / 2); + if (err) + goto err_rq; } else { slot[0] = 1; wmb(); |