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authorChris Wilson <chris@chris-wilson.co.uk>2020-02-05 12:54:40 +0300
committerChris Wilson <chris@chris-wilson.co.uk>2020-02-05 21:51:52 +0300
commit602ddb410dff397e791b7caafa2b2d40e5e52a29 (patch)
tree33c789257b4fa77400dc78cf583888d47a9cabd2 /drivers/gpu/drm/i915/i915_request.c
parentaae970d8454bb9b6b15f385250027af4c454d4f4 (diff)
downloadlinux-602ddb410dff397e791b7caafa2b2d40e5e52a29.tar.xz
drm/i915: Flush execution tasklets before checking request status
Rather than flushing the submission tasklets just before we sleep, flush before we check the request status. Ideally this gives us a moment to process the tasklets after sleeping just before we timeout. v2: Compromise by pushing the flush prior to the timeout, but after the check on completion so that we do not further delay the ready client. 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/20200205095441.1769599-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_request.c')
-rw-r--r--drivers/gpu/drm/i915/i915_request.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index f56b046a32de..0ecc2cf64216 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -1571,6 +1571,8 @@ long i915_request_wait(struct i915_request *rq,
break;
}
+ intel_engine_flush_submission(rq->engine);
+
if (signal_pending_state(state, current)) {
timeout = -ERESTARTSYS;
break;
@@ -1581,7 +1583,6 @@ long i915_request_wait(struct i915_request *rq,
break;
}
- intel_engine_flush_submission(rq->engine);
timeout = io_schedule_timeout(timeout);
}
__set_current_state(TASK_RUNNING);