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drm/i915: Mark up protected uses of 'i915_request_completed'

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When we know that we are inside the timeline mutex, or inside the
submission flow (under active.lock or the holder's rcu lock), we know
that the rq->hwsp is stable and we can use the simpler direct version.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210114135612.13210-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2021-01-14 13:56:08 +00:00
parent d263dfa7d2
commit 163433e5c5
9 changed files with 24 additions and 24 deletions
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6
drivers/gpu/drm/i915/gt/intel_engine_cs.c
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@@ -1811,7 +1811,7 @@ intel_engine_find_active_request(struct intel_engine_cs *engine)
struct intel_timeline *tl = request->context->timeline;
list_for_each_entry_from_reverse(request, &tl->requests, link) {
if (i915_request_completed(request))
if (__i915_request_is_complete(request))
break;
active = request;
@@ -1822,10 +1822,10 @@ intel_engine_find_active_request(struct intel_engine_cs *engine)
return active;
list_for_each_entry(request, &engine->active.requests, sched.link) {
if (i915_request_completed(request))
if (__i915_request_is_complete(request))
continue;
if (!i915_request_started(request))
if (!__i915_request_has_started(request))
continue;
/* More than one preemptible request may match! */