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

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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;
}