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drm/i915/gt: Move the late flush_submission in retire to the end 

Avoid flushing the submission queue (of others) under the client's
timeline lock, but instead move it to the end so that we may catch more.

References: https://gitlab.freedesktop.org/drm/intel/-/issues/1066
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/20200420125356.26614-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2020-04-20 13:53:56 +01:00
parent a95f3ac21d
commit f153f6395a
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/i915/gt/intel_gt_requests.c
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@ -162,7 +162,7 @@ long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout)
}
}
if (!retire_requests(tl) || flush_submission(gt))
if (!retire_requests(tl))
active_count++;
mutex_unlock(&tl->mutex);
@ -185,6 +185,9 @@ out_active: spin_lock(&timelines->lock);
list_for_each_entry_safe(tl, tn, &free, link)
__intel_timeline_free(&tl->kref);
if (flush_submission(gt)) /* Wait, there's more! */
active_count++;
return active_count ? timeout : 0;
}