Due to fun and games in our preempt-to-busy, it is possible for a
request to be completed in the background. Be vigilant and avoid setting
an error on already signaled request, as dma_fence_set_error() throws a
warning.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_lrc.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 0e28263c7b87..3a23a7bda50e 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -234,6 +234,13 @@ static void execlists_init_reg_state(u32 *reg_state,
struct intel_engine_cs *engine,
struct intel_ring *ring);
+static void mark_eio(struct i915_request *rq)
+{
+ if (!i915_request_signaled(rq))
+ dma_fence_set_error(&rq->fence, -EIO);
+ i915_request_mark_complete(rq);
+}
+
static inline u32 intel_hws_preempt_address(struct intel_engine_cs *engine)
{
return (i915_ggtt_offset(engine->status_page.vma) +
@@ -2495,12 +2502,8 @@ static void execlists_cancel_requests(struct intel_engine_cs *engine)
__execlists_reset(engine, true);
/* Mark all executing requests as skipped. */
- list_for_each_entry(rq, &engine->active.requests, sched.link) {
- if (!i915_request_signaled(rq))
- dma_fence_set_error(&rq->fence, -EIO);
-
- i915_request_mark_complete(rq);
- }
+ list_for_each_entry(rq, &engine->active.requests, sched.link)
+ mark_eio(rq);
/* Flush the queued requests to the timeline list (for retiring). */
while ((rb = rb_first_cached(&execlists->queue))) {
@@ -2510,8 +2513,7 @@ static void execlists_cancel_requests(struct intel_engine_cs *engine)
priolist_for_each_request_consume(rq, rn, p, i) {
list_del_init(&rq->sched.link);
__i915_request_submit(rq);
- dma_fence_set_error(&rq->fence, -EIO);
- i915_request_mark_complete(rq);
+ mark_eio(rq);
}
rb_erase_cached(&p->node, &execlists->queue);
@@ -2530,8 +2532,7 @@ static void execlists_cancel_requests(struct intel_engine_cs *engine)
if (ve->request) {
ve->request->engine = engine;
__i915_request_submit(ve->request);
- dma_fence_set_error(&ve->request->fence, -EIO);
- i915_request_mark_complete(ve->request);
+ mark_eio(ve->request);
ve->base.execlists.queue_priority_hint = INT_MIN;
ve->request = NULL;
}
--
2.23.0
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